This method for cleaning the blades of a rotary device includes: a first coating step in which blades are coated with a water-soluble cleaning liquid containing a surfactant; a standstill step in which the blades coated with the cleaning liquid are brought to a standstill; a first wiping step in which the blades are wiped after the standstill step; a second coating step in which, after the first wiping step, the blades are coated with water or with a diluted cleaning liquid having a lower concentration of the surfactant than the cleaning liquid applied in the first coating step; and a second wiping step in which the blades are wiped after the second coating step.
The present invention relates to a control device of a power plant which is provided with a steam generator, a turbine, a condenser, a condensate control valve, a heater and a bleed valve. When increasing the load command value to the power plant, the control device performs condensate throttle control, for throttling the opening degree of the condensate control valve, and load increase control, for increasing the load of the steam generator. In the condensate throttle control, the opening degree of the bleed air valve and the condensate control valve is controlled with an opening change rate set on the basis of the rate of change of the load command value.
This fluid supply system has a header to which two distribution pipes are connected, and a plurality of pumps respectively connected to the header at different positions along a longitudinal direction. The distribution pipes are connected to the header of the fluid supply system at positions such that therebetween are one or two pumps at the center of the pump alignment.
The plant inspection method according to one embodiment of the present invention is for inspecting a plant including a pipe base and a header having formed therein a pipe base hole through which said pipe base is attached, the method comprising: a step for selecting an inspection region from among one or more candidate inspection regions that include an area, inside a base material of the header, shifted in the axial direction of the header from an inner wall surface of the pipe base hole; and a step for performing flaw inspection on the inspection region.
This steam turbine stationary blade is provided with: a blade body part having a blade surface including a pressure surface and a negative pressure surface; a moisture removal flow passage provided inside the blade body part; at least one slit that is open in the blade surface, communicates with the moisture removal flow passage, and extends in the height direction from a base section of the blade body part to a tip section; and at least one groove part that is provided to the blade surface, extends in the height direction from the base section, and has at least a portion overlapping the at least one slit in the height direction.
A gas turbine blade repair method including: a step in which a thermal barrier coating is removed to expose at least part of a base material of a gas turbine blade; a first etching step in which the exposed base material is etched; a first identification step in which a base material deterioration layer that is harder than the base material is identified from the etched base material; a first removal step in which the identified base material deterioration layer is removed; and a step in which, after a determination has been made in the first identification step that there is no base material deterioration layer or after the base material deterioration layer is removed in the first removal step, a thermal barrier coating is applied to the exposed base material.
F02C 7/00 - Features, component parts, details or accessories, not provided for in, or of interest apart from, groups Air intakes for jet-propulsion plants
G01N 23/223 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
A water spray apparatus 3 sprays water over product gas on a downstream side of a gasifier 1. A dedusting device 4 removes unreacted coal from the product gas on a downstream side of the water spray apparatus 3. A first washing tower 5 removes halogen in the product gas on a downstream side of the dedusting device 4. A shift reactor 6 converts a water vapor and carbon monoxide in the product gas into hydrogen and carbon dioxide by the shift reaction on a downstream side of the first washing tower 5. A second washing tower 7 removes ammonia from the product gas on a downstream side of the shift reactor 6. An absorption tower 8 removes hydrogen sulfide and carbon dioxide from the product gas on a downstream side of the second washing tower 7. A drained water supply pipe 9 supplies drained water from the second washing tower 7 to the water spray apparatus 3. The water spray apparatus 3 sprays the drained water supplied from the drained water supply pipe 9.
C10K 1/10 - Purifying combustible gases containing carbon monoxide by washing with liquidsReviving the used wash liquors with aqueous liquids
C10K 3/04 - Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment reducing the carbon monoxide content
C10J 3/46 - Gasification of granular or pulverulent fuels in suspension
COMPRESSED AIR SUPPLY SYSTEM, FUEL CELL SYSTEM PROVIDED WITH SAID COMPRESSED AIR SUPPLY SYSTEM, AND METHOD FOR STARTING UP SAID COMPRESSED AIR SUPPLY SYSTEM
This compressed air supply system is provided with: a turbocharger including a turbine and a compressor; a regenerative heat exchanger for exchanging heat between air discharged from the compressor and exhaust gas exhausted from the turbine; a startup heater for heating flowing air including at least one of startup air and compressed air supplied to a discharge air line from the compressor to the regenerative heat exchanger; and a catalyst combustor which supplies combustion gas generated by burning fuel in the flowing air heated by the startup heater to the turbine.
This system for producing a synthetic product is provided with: a by-produced hydrogen discharging plant which discharges by-produced hydrogen; a carbon dioxide discharging plant which discharges a carbon dioxide-containing gas; a synthesizing plant which produces a synthetic product by synthesizing the by-produced hydrogen and the carbon dioxide contained in the carbon dioxide-containing gas; and a flow rate regulation device configured to guide, to the synthesizing plant, the carbon dioxide of which the flow rate is regulated with respect to the flow rate of the by-produced hydrogen supplied to the synthesizing plant.
C07C 1/12 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon dioxide with hydrogen
C07C 29/151 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
Provided is a solid fuel burner such that it is possible to reduce unburned content and CO while suppressing generation of NOx. This solid fuel burner comprises: a solid fuel nozzle (10) that ejects a fluid mixture of solid fuel and primary air; a secondary air nozzle (11) that ejects secondary air; a tertiary air nozzle (12) that ejects tertiary air; a secondary air guide member (34) that guides the flow of secondary air outward in the radial direction; and one or more tertiary air guide members (20) that guide the flow of tertiary air outward in the radial direction. This solid fuel burner is equipped with a contraction flow formation member (60) that narrows the cross-sectional area of a secondary air flow path. The outer diameter (L2) of the secondary air guide member is formed smaller than the inner diameter (L1) of the outer peripheral wall of the secondary air nozzle. The leading end position (X2) of the tertiary air guide member is closer to the furnace side than the leading end position (X1) of the secondary air guide member. The solid fuel nozzle, the secondary air guide member, and the contraction flow formation member are configured so as to be integrally withdrawable from a burner throat.
This turbine stator vane is provided with: an airfoil portion; a shroud provided on at least one of a distal end portion side and a base end portion side of the airfoil portion; and a projecting portion which projects toward the side opposite to the airfoil portion across a gas path surface. The shroud includes: a perimetrical direction passage disposed on the trailing edge side and extending in the perimetrical direction; and a plurality of trailing edge end portion passages which are arranged in the perimetrical direction on the trailing edge side, a first end portion of which is connected to the perimetrical direction passage, and a second end portion of which opens in a trailing edge end surface of the shroud. The perimetrical direction passage includes an inclined passage which, when seen in a perimetrical direction cross section, has a third end portion that is in close proximity to the gas path surface and projects to the leading edge side, has a fourth end portion formed on the trailing edge side of the third end portion, and has an opening portion that is closed by a lid portion, in a trailing edge side end surface of the projecting portion. The axial direction position of the first end portion where the trailing edge end portion passage is connected to the perimetrical direction passage is disposed on the leading edge side of the position of the trailing edge side end surface of the projecting portion, in the position in which the projecting portion is connected to the shroud.
In the present invention, exhaust gas from a boiler 1 passes through an exhaust gas channel 4. A desulfurization tower 2 removes sulfur oxide from the exhaust gas. A desulfurization gas channel 10 has a desulfurization inlet side channel 11 that connects a branching section 6 of the exhaust gas channel 4 to an exhaust gas inlet 8 of the desulfurization tower 2, and a desulfurization outlet side channel 12 that connects an exhaust gas outlet 9 of the desulfurization tower 2 to a merging section 7 of the exhaust gas channel 4. Desulfurization gas channel dampers 20, 21 can open and close the desulfurization gas channel 10. A desulfurization ventilator 22 causes the exhaust gas to flow in the desulfurization gas channel 10 so that some of the exhaust gas passing through the exhaust gas channel 4 is guided from the branching section 6 to the desulfurization tower 2 and returns to the exhaust gas channel 4 from the merging section 7 in a state in which the desulfurization gas channel dampers 20, 21 are in a desulfurization gas channel open state to open the desulfurization gas channel 10.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
MITSUBISHI HITACHI POWER SYSTEMS AMERICAS, INC. (USA)
MITSUBISHI HITACHI POWER SYSTEMS, LTD. (Japan)
Inventor
Deng, Shimin
Abstract
A gas turbine combined-cycle power plant comprising a gas turbine engine comprising a compressor for generating compressed air, a combustor that can receive a fuel and the compressed air to produce combustion gas and a turbine for receiving the combustion gas and generating exhaust gas; a heat recovery steam generator for generating steam from water utilizing heat from the exhaust gas; a steam turbine for producing power from the steam generated by the heat recovery steam generator; a fuel regasification and expansion system in fluid communication with and disposed downstream of the fuel regasification and expansion system for producing power from gasified fuel; and a fuel expansion turbine in fluid communication with and disposed downstream of the fuel regasification and expansion system for producing power from gasified fuel. In examples, the power plant can include an Organic Rankine Cycle (ORC) using heat input from the heat recovery steam generator. The ORC can utilize a recupertor to redistribute heat within the ORC.
F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
F02C 6/18 - Plural gas-turbine plantsCombinations of gas-turbine plants with other apparatusAdaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
14.
SOLID FUEL BURNER, BOILER DEVICE, AND NOZZLE UNIT FOR SOLID FUEL BURNER
Provided is a solid fuel burner that can reduce unburned fuel and CO while suppressing generation of NOx. A solid fuel burner (5) which is inserted into a burner throat (28) drilled into the wall (19) of a furnace (2) comprises: a solid fuel nozzle (10) that ejects a fluid mixture of solid fuel and primary air; a secondary air nozzle (11) that ejects secondary air; a tertiary air nozzle (12) that ejects tertiary air; a secondary air guide member (34) that is located on the outer periphery of the tip of the solid fuel nozzle and guides the flow of secondary air outward in the radial direction; and one or more tertiary air guide members (20) that are located at the tip of the tertiary air nozzle and guide the flow of tertiary air outward in the radial direction at a first angle (θ1) with respect to the central axis (C) of the solid fuel burner. The leading end position (X2) of the tertiary air guide member in the axial direction of the solid fuel burner is closer to the furnace than the leading end position (X1) of the secondary air guide member.
The present invention determines whether a first prediction value of an operation index acquired by inputting a to-be-changed value of a plant operation parameter satisfies an operation reference, and determines whether a second prediction value of an operation index acquired by inputting, to a prediction model, a virtual change value which is a change amount with respect to a current value and is larger than the scheduled change value satisfies the operation reference. When it is determined that the first and second prediction values satisfy the operation reference, the scheduled change value is outputted as an operation parameter command value.
According to the present invention, an exhaust gas inlet 4 is provided to a side wall of an absorption column, and an inlet flue 1 is connected to the exhaust gas inlet 4. The exhaust gas from a combustion device passes through the inlet flue 1 and flows from the exhaust gas inlet 4 into the absorption column. A lower end edge 21 of the exhaust gas inlet 4 extends in a curve in substantially the horizontal direction. A bottom surface 17 of the inlet flue 1 has a flat main bottom surface 22 and a connecting bottom surface 23 that connects a downstream end edge 24 of the main bottom surface 22 and the lower end edge 21 of the exhaust gas inlet 4. The downstream end edge 24 of the main bottom surface 22 extends linearly in substantially the horizontal direction above the lower end edge 21 of the exhaust gas inlet 4. The connecting bottom surface 23 is configured by being divided into a plurality of surfaces, and each of the plurality of surfaces is any of downward sloping surfaces 27, 28, the exhaust gas inlet 4 sides of which are lower than the main bottom surface 22 sides, and a substantially flat surface 25.
A turbine stator vane according to one embodiment of the present invention is provided with an airfoil portion which includes a plurality of cooling flow passages and a plurality of return flow passages, and in which at least one of the return flow passages is internally provided with a serpentine flow passage disposed toward the inside or the outside, in the vane height direction, relative to a gas path surface, a vane body including a shroud provided on at least one of a distal end side or a base end side, in the vane height direction, of the airfoil portion, and a lid portion which is fixed to an end portion on the distal end side or the base end side of the airfoil portion in the vane height direction, forms said at least one return flow passage, and is separate from the airfoil portion, wherein: the lid portion is formed such that in inner wall surface width forming a flow passage width of the return flow passage is greater than the flow passage width of the cooling flow passage formed in the airfoil portion; and the minimum value of the thickness of the lid portion is less than the thickness of the part of the shroud to which the lid portion is attached.
This seawater desulfurization device is provided with: an absorption column (11) that has an exhaust gas introducing section (22) and an exhaust gas discharging section (23) for exhaust gas (G) and is provided therein with an exhaust gas flow passage (24) along the vertical direction; and a sprinkling device (12) that sprinkles seawater (S) vertically downward with respect to the exhaust gas (G) flowing vertically upward through the exhaust gas flow passage (24), wherein the sprinkling device (12) has a plurality of first pressurizing sprinkle nozzles (31) that are horizontally arranged side by side in the exhaust gas flow passage (24) and pressurizes and sprays the seawater (S), a seawater supply pump (26) that can supply the seawater (S) to the plurality of first pressurizing sprinkle nozzles (31) and adjust sprinkling regions of the seawater (S) by the first pressurizing sprinkle nozzles (31); and a plurality of second pressurizing sprinkle nozzles (32) that pressurizes and sprays the seawater (S) to a region of the exhaust gas flow passage (24) to which the seawater (S) cannot be sprinkled by the plurality of first pressurizing sprinkle nozzles (31).
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
Provided is a pyrite processing device that takes into consideration safety during pyrite storage while keeping construction cost low during installation by making the pyrite processing device height more compact. The pyrite processing device comprises a pyrite box in which pyrite generated by a pulverizer is temporarily stored, and a nozzle to spray water into the pyrite box. The pyrite box comprises a hopper that has an inclined face inclined toward the bottom center of the pyrite box, and a sidewall cylinder comprising a hollow cylindrical body erected in the vertical direction on the hopper. The sidewall cylinder has formed thereon a spray port that is provided at a site where a discharge channel to discharge pyrite into the pyrite box from the pulverizer connects to the sidewall cylinder. The nozzle is provided higher than the spray port on the inside of the pyrite box, and the range of the nozzle water spray contains the inclined face.
A plurality of support beams 11 extend linearly in a first direction that is substantially orthogonal to the vertical direction, are lined up substantially in parallel, and are secured to a peripheral wall of an absorption tower. A plurality of liquid-stagnating ventilation bodies 12 are arranged on the support beams 11 below an absorption liquid supply part and are lined up linearly in the first direction. Each of the liquid-stagnating ventilation bodies 12 has a rectangular porous plate part 13 in which a pair of first opposing sides 16 and a pair of second opposing sides 17 are substantially orthogonal to each other, and a pair of first opposing plate parts 14 that extend upward and are bent at a substantially right angle from each of the first opposing sides 16. Numerous pores passing through in the up-down direction are formed in the porous plate part 13. The first opposing plate parts 14 are linearly continuous in a second direction, and joining members 19 join together the first opposing plate parts 14 that overlap in the first direction.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
This work schedule creation system comprises: a display controller that is capable of executing a proposed improvement display mode in which a plurality of proposed improvement items capable of improving work is displayed on a display unit; and an improved schedule creation unit configured to create an improved schedule obtained by improving a standard work schedule, on the basis of the standard work schedule and shortening effects information indicating the required work time shortening effects obtained by applying a proposed improvement for an item, out of the plurality of proposed improvement items, that has been selected by using an input part. The display controller is configured to be capable of executing an improved schedule display mode in which the improved work schedule created by the improved schedule creation unit is displayed on the display unit.
This calculation device is provided with: a limit value calculation unit which calculates, on the basis of a pressure value inside a boiler and a flow rate value in an induced draft fan, a lower limit value of the rotation speed of a motor in the induced draft fan, and an upper limit value of a damper opening degree of a damper that adjusts the pressure inside the boiler, the upper limit value being possible upon calculation of the lower limit value; and a target rotation speed specification unit which specifies, on the basis of the lower limit value and the upper limit value, at least one among the lower limit value of the rotation speed of the motor in the induced draft fan, which is targeted by a control, and the upper limit value of the damper opening degree of the damper, which is targeted by the control.
Provided is a flue gas purification method that includes: causing flue gas to pass through a wet flue gas desulphurization device, removing sulfur oxides from the flue gas, obtaining a gas including carbon dioxide, causing the obtained gas including carbon dioxide to be in contact with a water slurry including combustion ash, and removing carbon dioxide from the gas. Also provided is a combustion ash neutralization method that includes: suspending combustion ash in water, a water slurry including calcium, or an aqueous solution and obtaining a water slurry including combustion ash, causing gas including carbon dioxide discharged from the wet flue gas desulphurization device to be in contact with the obtained water slurry including the combustion ash and obtaining a water slurry including carbonated ash, and separating and removing solids from the water slurry including the carbonated ash.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
This boiler (1) is characterized by comprising: a furnace (2); a sub lateral wall part (12) provided on the gas-flow-direction downstream side of an upper part of the furnace (2); a can rear part (11) disposed in rear of the sub lateral wall part (12); and a soot removing device (21) that has a nozzle (22) configured to be accessible to the inside of the sub lateral wall part (12) from the bottom surface (13) of the sub lateral wall part (12) and that removes soot on the bottom surface (13) of the sub lateral wall part (12) by spraying a soot removing medium from the nozzle (22). The present invention can suppress deposition of ash in the bottom surface of the sub lateral wall part compared to conventional configurations even when low-quality coal is used.
22 oxidation rate of a catalyst. A denitration catalyst regeneration method according to the present invention includes: a chemical solution cleaning step for immersing a denitration catalyst in a chemical solution containing a fluorine compound and an inorganic acid; a step for extracting the denitration catalyst from the chemical solution; and a finish washing step for washing the denitration catalyst extracted from the chemical solution with a finish cleaning solution containing an organic acid.
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Fukuhara Yoshiya
Terasawa Masato
Sato Osamu
Matsuzaki Kazuya
Abstract
This gauge (10g) has a reference body (11g) and a gauge body (13g). The reference body (11g) has a plurality of reference parts (20) located at mutually different positions and enable defining of a coordinate system. The gauge body (13g) is connected to the reference body (11g). The gauge body (13g) includes a plurality of planar sections or a plurality of curved sections (C1g, C2g, C3g, C4g) having mutually different curvature radii, wherein each of the curved sections or planar sections has a free-form surface (Fbg) that is contiguously connected to another one of the plurality of curved sections or planar sections.
G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
This combustor is provided with multiple fuel nozzles (6) that extend in the direction of the nozzle axis (An) and inject fuel towards one side in the direction of the nozzle axis (An); a tube plate (3) that has multiple air holes (31) formed therein which extend in the direction of the nozzle axis (An), into which the tips (6B) of the fuel nozzles (6) are inserted, and which have an inner diameter greater than that of the tip (6B); and a step surface (S3) which, at a position on the tip portion (6B) on the other side of the tip surface (S1) that faces to one side in the direction of the nozzle axis (An), extends radially with respect to the nozzle axis (An) from the tip outer peripheral surface (S2), which is the outer peripheral surface of the tip portion (6B).
This cooling air supply device is a turbine casing provided with a cooling air supply unit, which supplies cooling air into the inner space of the casing of the gas turbine, wherein the cooling air supply unit includes a first supply unit which is disposed facing a first region radially outside of multiple combustors arranged in a ring around the rotor in the upper half of the casing, and which supplies the cooling air to the first region, and a second supply unit which is disposed facing a second region radially inside of the multiple combustors and which supplies the cooling air to the second region.
This operation plan construction device is provided with: a driving information construction unit which receives a simplified setting input including information by which an operation period of a device can be specified, information by which an inspection period can be specified, and an inspection pattern in which exchange-scheduled components upon inspection are pre-specified, and constructs driving information including an inspection period in the operation period and the exchange-scheduled components of the device; a component information acquisition unit which acquires, on the basis of use-history information about each of the components, component information including lifetime information and stock number information about each of a plurality of the components; a dummy information construction unit which constructs dummy information as a substitute for defect information, when the acquired component information has the defect information; and a plan construction unit which constructs, on the basis of the driving information, the component information, or the dummy information, an operation plan of the component pertaining to the device.
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
30.
PLANT MONITORING DEVICE, PLANT MONITORING METHOD, AND PROGRAM
A plant monitoring device (20) is provided with: a detection value acquisition unit (211) that acquires a bundle of detection values; a first Mahalanobis distance calculation unit (212) that calculates a first Mahalanobis distance; a plant state determination unit (213) that determines whether the operation state of a plant is normal or abnormal; a cause detection value estimation unit (214) that estimates a cause detection value which represents a cause of the abnormality of the plant; a second Mahalanobis distance calculation unit (215) that calculates a second Mahalanobis distance by increasing or decreasing the detection value estimated as the cause detection value; and an identification unit (216) that identifies whether the abnormality can be relieved by increasing or decreasing the detection value estimated as the cause detection value.
F01D 25/00 - Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
F02C 7/00 - Features, component parts, details or accessories, not provided for in, or of interest apart from, groups Air intakes for jet-propulsion plants
In the present invention, a freight information acquisition unit acquires freight information including the weight and the center of gravity position of cargo. A support position determination unit determines the positions at which the cargo is supported by one or more unmanned moving bodies among a plurality of unmanned moving bodies, such determination made on the basis of the load bearing capacity of each of the unmanned moving bodies.
This separation recovery system is provided with: a first absorption tower in which exhaust gas discharged from a first combustion device is brought into gas-liquid contact with a cleaning liquid; a second absorption tower in which exhaust gas discharged from a second combustion device is brought into gas-liquid contact with a cleaning liquid; first to third solid/liquid separation devices for separating and recovering a product from the cleaning liquid; a first cleaning liquid introduction line which feeds the cleaning liquid from the first absorption tower to the first solid/liquid separation device; a second cleaning liquid introduction line which feeds the cleaning liquid from the second absorption tower to the second solid/liquid separation device; and a third cleaning liquid introduction line which feeds the cleaning liquid from each of the first and the second absorption towers to the third solid/liquid separation device.
B01D 53/92 - Chemical or biological purification of waste gases of engine exhaust gases
B01D 33/04 - Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
A compressor system (1) comprises: a compressor (11) having an upstream region (11A) into which a working fluid flows, a downstream region (11B) in which the pressure of the working fluid is greater than in the upstream region (11A), inlet guide vanes (11C) that are provided further upstream than the upstream region (11A) and are capable of altering the flow rate of the inflowing working fluid, and an extraction part (L) that is provided to a portion between the upstream region (11A) and the downstream region (11B) and is capable of extracting at least a portion of the working fluid; detection devices (21), at least one of which is provided in each of the upstream region (11A) and the downstream region (11B), for detecting the physical quantity of the working fluid; and a control device (90) for adjusting, on the basis of changes in the physical quantity, the aperture of the inlet guide vanes (11C) and the amount extracted by the extraction part (L).
A turbine blade and a gas turbine are provided with: an airfoil portion (41) internally including a cooling air passage (60); a platform (42) provided in a blade base end portion (55) in a blade height direction (Dh) of the airfoil portion (41); and a fillet portion (80) provided around the entire perimeter of a connecting portion of the airfoil portion (41) and the platform (42). The fillet portion (80) includes a first fillet portion (81) which is provided on a rear side blade surface (53) side of the airfoil portion (41), on the trailing edge (52) side of a position at which the distance between the rear side blade surface (53) of the airfoil portion (41) and a rear side edge portion (44) of the platform (42) is shortest, and which has a fillet width (W) that is greater than the fillet width W of other regions of the fillet portion (80).
This raw material fluid treatment plant is provided with a raw material reaction apparatus (40) for reacting a raw material fluid (NH) to form a reaction gas (RG). The raw material reaction apparatus (40) comprises preheaters (44a, 44b) and a reactor (45). The preheaters (44a, 44b) are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid (NH). The reactor (45) is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid (NH) having been heated by the preheaters (44a, 44b) to heat and react the raw material fluid (NH).
An importance determination unit determines a normalized importance for a plurality of risk items related to the operation of a circulating water system of a plant. An evaluation value calculation unit obtains an evaluation value for each of the plurality of operating policies of the circulating water system on the basis of the sum of the product of the level of impact and the importance. The level of impact indicates the impact of the operation policy on the plurality of risk items.
An ammonia decomposition facility (50) is equipped with: a heating medium line (85) through which a heating medium that is heated with heat generated in a gas turbine (11) flows; an ammonia feeding line (81) through which ammonia flows; an ammonia decomposition device (51); and an ammonia removal device (61). The ammonia decomposition device (51) can thermally decompose ammonia coming from the ammonia feeding line (81) utilizing heat of the heating medium coming from the heating medium line (85) to generate a decomposition gas (DG) containing hydrogen, nitrogen and residual ammonia. The ammonia removal device (61) can remove the residual ammonia contained in the decomposition gas (DG) coming from the ammonia decomposition device (51).
C01B 3/04 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of inorganic compounds, e.g. ammonia
F02C 3/22 - Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
38.
EQUIPMENT FOR DECOMPOSING AMMONIA, GAS TURBINE PLANT PROVIDED WITH SAME, AND METHOD FOR DECOMPOSING AMMONIA
This equipment (X) for decomposing ammonia is provided with: an air bleeding line (85); an ammonia supply line (81) in which ammonia flows; an ammonia decomposing device (50); and a processed gas supply line (82). In the air bleeding line, parts of compressed air generated in an air compressor (11a) of a gas turbine (11) flow as bled air (BA). The ammonia decomposing device uses the bled air from the air bleeding line as an oxidant, burns parts of ammonia from the ammonia supply line, autothermally decomposes ammonia, and produces a processed gas (PG) containing hydrogen and nitrogen. The processed gas supply line guides the processed gas as a fuel to a combustor (11b) of the gas turbine.
C01B 3/04 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of inorganic compounds, e.g. ammonia
F02C 3/22 - Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
This rotating machine is provided with a rotor which rotates about an axis, a stator facing the rotor in the radial direction, and a plurality of sealing fins (70) which project from one of the rotor and the stator toward the other thereof in the radial direction, and which are provided spaced apart in the axial direction, wherein one of the rotor and the stator includes: an acoustic space (V) formed as a hollow portion inside said one of the rotor and the stator; and a through hole (H) providing communication between the acoustic space (V) and a part between the sealing fins (70) that are adjacent to one another in the axial direction.
The present invention provides a boiler device capable of reducing damage to a boiler body in the event of an earthquake. A boiler device comprising a boiler body (1) having a furnace (2) and a cage (3) at the rear part of the furnace, and a plurality of steel columns (12) provided around the boiler body and supporting the boiler body, wherein the boiler device is characterized in comprising a plurality of horizontally extending backstays (20) that respectively link left and right water walls (2a) of the furnace and left and right cage walls (3a) of the cage, and a plurality of connecting members (13a, 15a) connecting each of the plurality of backstays to the plurality of steel columns provided on the left and right of the boiler body.
The purpose of the present invention is to provide a Co-based alloy product having mechanical properties that are equivalent or superior to those of precipitation-hardened Ni-based alloy materials. The Co-based alloy product according to the present invention has a chemical composition which contains 0.08 to 0.25% by mass of C, 0.1% by mass or less of B and 10 to 30% by mass of Cr, also contains 5% by mass or less of Fe and 30% by mass or less of Ni wherein the total amount of Fe and Ni is 30% by mass or less, also contains W and/or Mo wherein the total amount of the at least one component is 5 to 12% by mass and the total amount of W and Mo is 5 to 12% by mass inclusive, also contains 0.5% by mass or less of Si, 0.5% by mass or less of Mn and 0.003 to 0.04% by mass of N, and also contains an M component that is a transition metal other than W and Mo and having an atomic radius of more than 130 pm in an amount of 0.5 to 2% by mass inclusive, with the remainder made up by Co and impurities, wherein the impurities contain 0.5% by mass or less of Al and 0.04% by mass or less of O. The product is characterized in that the product is a polycrystal body of matrix phase crystals, and segregation cells which have an average size of 0.13 to 2 μm inclusive and in which the M component is segregated in boundary regions are formed in crystal grains of the polycrystal body.
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
42.
COBALT-BASED ALLOY POWDER, COBALT-BASED ALLOY SINTERED BODY, AND METHOD FOR PRODUCING COBALT-BASED ALLOY SINTERED BODY
Provided are: a Co-based alloy powder that can provide a Co-based alloy material having mechanical properties at least equal to those of precipitation-strengthened Ni-based alloy materials; a Co-based alloy sintered body; and a method for producing a Co-based alloy sintered body. A Co-based alloy powder according to the present invention is characterized by containing 0.08 mass% to 0.25 mass% carbon, not more than 0.1 mass% boron, 10 mass% to 30 mass% chromium, not more than 5 mass% iron, and not more than 30 mass% nickel, wherein the sum of the iron and nickel is not more than 30 mass%; containing at least one of tungsten and molybdenum such that the sum thereof is 5 mass% to 12 mass%; containing at least one of titanium, zirconium, niobium, and tantalum such that the sum thereof is 0.5 mass% to 2 mass%; containing not more than 0.5 mass% silicon, not more than 0.5 mass% manganese, and 0.003 mass% to 0.04 mass% nitrogen; and containing cobalt and impurities for the balance.
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
43.
COBALT-BASED ALLOY PRODUCT AND METHOD FOR PRODUCING SAME
The purpose of the present invention is to provide: a Co-based alloy product having mechanical properties that are equivalent or superior to those of precipitation-hardened Ni-based alloy materials; and a method for producing the Co-based alloy product. The Co-based alloy product according to the present invention has a chemical composition which contains 0.08 to 0.25% by mass of C, 0.1% by mass or less of B and 10 to 30% by mass of Cr, also contains 5% by mass or less of Fe and 30% by mass or less of Ni wherein the total amount of Fe and Ni is 30% by mass or less, also contains W and/or Mo wherein the total amount of W and Mo is 5 to 12% by mass inclusive, also contains at least one element selected from Ti, Zr, Hf, V, Nb and Ta in a total amount of 0.5 to 2% by mass inclusive, and also contains 0.5% by mass or less of Si, 0.5% by mass or less of Mn and 0.003 to 0.04% by mass of N, with the remainder made up by Co and impurities, wherein the impurities contain 0.5% by mass or less of Al and 0.04% by mass or less of O. The product is characterized in that the product is a polycrystal body of matrix phase crystals, post-segregation cells which have an average size of 0.13 to 2 μm inclusive are formed in crystal grains of the polycrystal body, and MC-type carbide phase grains each containing the Ti, the Zr, the Hf, the V, the Nb and/or the Ta are dispersed and deposited on the boundaries of the post-segregation cells.
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
The purpose of the present invention is to provide a Co-based alloy heat exchanger having excellent mechanical properties and high heat resistance as compared to conventional heat exchangers bonded through brazing. The heat exchanger made of a Co-based alloy according to the present invention is characterized in that: the Co-based alloy has a chemical composition wherein 0.08-0.25 mass% of C, not more than 0.1 mass% of B, 10-30 mass% of Cr, not more than 5 mass% of Fe, and not more than 30 mass% of Ni are contained, the total of Fe and Ni is not more than 30 mass%, W and/or Mo is contained, the total of W and Mo is 5-12 mass%, Ti, Zr, Nb, and Ta are contained, the total of Ti, Zr, Nb, and Ta is 0.5-2 mass%, not more than 0.5 mass% of Si, not more than 0.5 mass% of Mn, and 0.003-0.04 mass% of N are contained, the remaining portion is Co and impurities, the impurities include not more than 0.5 mass% of Al and not more than 0.04 mass% of O; the heat exchanger is a polycrystal body in which the average crystalline particle diameter of a parent phase crystal is 5-150 µm; and, in the crystalline particles of the polycrystal body, MC-type carbide phase particles containing Ti, Zr, Nb, and/or Ta are deposited at an average inter-particle distance of 0.13-2 µm.
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
A fuel concentrator (34), which is provided toward the center of a fuel nozzle (21) and which imparts to a mixed fluid a velocity component away from the center of the fuel nozzle (21), is configured so as to have a plurality of blades (41a, 41b) that impart a swirl to the mixed fluid and are provided at two locations which are separated from each other in a burner axial direction, the swirl directions of the plurality of blade (41a, 42a) structures being in mutually opposite directions, and the deflection angle of at least an upstream-side blade (41a) relative to the burner axial direction can be adjusted with respect to the flow direction of the mixed fluid; thus, it is possible to switch between the use of coal and biomass fuel while maintaining ignitability and the risk of abrasion.
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
47.
COBALT-BASED ALLOY PRODUCT AND COBALT-BASED ALLOY ARTICLE
The purpose of the present invention is to provide a Co-based alloy product and a Co-based article, which have mechanical properties equal to or higher than a precipitation-strengthened Ni-based alloy material. A Co-based alloy product according to the present invention is characterized by having a chemical composition containing 0.08-0.25 mass% of C, 0.1 mass% or less of B and 10-30 mass% of Cr, containing 5 mass% or less of Fe and 30 mass% or less of Ni, in which the total content of Fe and Ni is 30 mass% or less, containing W and/or Mo in which the total content of W and Mo is 5-12 mass%, containing Ti, Mb, and Ta in which the total content of Ti, Nb and Ta is 0.5-2 mass%, containing 0.5 mass% or less of Si, 0.5 mass% or less of Mn and 0.003-0.04 mass% of N, with the remainder comprising Co and impurities, the impurities containing 0.5 mass% or less of Al, 0.005 mass% or less of Zr, and 0.04 mass% or less of O, wherein the product is a polycrystalline body of parent phase crystals, and in the crystal grains of the polycrystalline body, components, which form MC-type carbide phases containing the Ti, Nb and/or Ta are segregated in boundary regions, and segregation cells having an average size of 0.13-2 μm are formed.
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
48.
COBALT-BASED ALLOY POWDER, COBALT-BASED ALLOY SINTERED BODY, AND METHOD FOR MANUFACTURING COBALT-BASED ALLOY SINTERED BODY
Provided are a Co-based alloy powder, a Co-based alloy sintered body, and a method for manufacturing a Co-based alloy sintered body capable of providing a Co-based alloy material having mechanical characteristics equivalent to or greater than a precipitation-strengthened Ni-based alloy material. A Co-based alloy powder according to the present invention is characterized by: including 0.08 mass% to 0.25 mass% of carbon, 0.1 mass % or less of boron, 10 mass% to 30 mass% of chromium, 5 mass% or less of iron, and 30 mass% or less of nickel; including said elements such that the total of iron and nickel is 30 mass% or less; including at least one of tungsten and molybdenum such that the total thereof is 5 mass% to 12 mass%; including at least one of titanium, zirconium, niobium, tantalum, hafnium, and vanadium such that the total thereof is 0.5 mass% to 2 mass%; including 0.5 mass% or less of silicon, 0.5 mass% or less of manganese, and 0.003 mass% to 0.04 mass% of nitrogen, the remainder comprising cobalt and impurities; crystal grains, which constitute the cobalt-based alloy powder, having segregated cells; and the average size of the segregated cells being 0.15 µm to 4 µm.
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
A fuel concentrator (34), which is provided toward the center of a fuel nozzle (21) and which imparts to a mixed fluid a velocity component away from the center of the fuel nozzle (21), is configured so as to have a plurality of blades (41a, 41b) that impart a swirl to the mixed fluid, and the deflection angle of the blade (41a) relative to the burner axial direction can be adjusted; thus, it is possible to switch between the use of coal and biomass fuel while maintaining ignitability and the risk of abrasion.
A NOx reduction catalyst which is composed of a molded body that contains a catalyst component, while having microcracks that extend in the shape of a network or a double-sided comb on the surface of the molded body, and which is configured such that: the microcracks have a 95% crack width of 100 μm or less; the variation coefficient of the crack area ratio is 0.7 or less; and the average of the crack area ratio is preferably 1-14%. A method for removing nitrogen oxides from a combustion exhaust gas, which comprises a step for processing a combustion exhaust gas containing nitrogen oxides in the presence of the above-described NOx reduction catalyst.
333 in a larger amount than the second structure; the second structure contains a metal element in the metal oxide in a larger amount than the first structure; and the area ratio of the second structure in the structure is preferably from 1% to 50% (inclusive).
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
C04B 35/465 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
C25B 1/10 - Electrolytic production of inorganic compounds or non-metals of hydrogen or oxygen by electrolysis of water in diaphragm cells
C25B 9/00 - Cells or assemblies of cellsConstructional parts of cellsAssemblies of constructional parts, e.g. electrode-diaphragm assembliesProcess-related cell features
C25B 9/10 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms including an ion-exchange membrane in or on which electrode material is embedded
C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form
H01M 8/0276 - Sealing means characterised by their form
H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
52.
FUEL BATTERY MODULE, POWER GENERATING SYSTEM, AND OPERATING METHOD FOR FUEL BATTERY MODULE
A fuel battery module according to one embodiment of the present invention is provided with: a plurality of fuel battery cells each including a fuel-side electrode, an electrolyte, and an oxygen-side electrode; a fuel-gas supplying pipe for supplying a fuel gas to the fuel-side electrodes; an oxidizing-gas supplying pipe that is for supplying an oxidizing gas to the oxygen-side electrodes of the fuel battery cells and that includes a first line and a plurality of second lines which are connected to at least one fuel battery cell and which branch at a branch point located at the downstream end of the first line; and at least one temperature-rising fuel gas supplying pipe connected to the second lines located on the downstream side of the branch point.
H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
This fuel battery cartridge is provided with a plurality of cell stacks including a plurality of cells for forming a solid oxide fuel battery. Cell stack groups comprising the plurality of cell stacks include an inner-side cell stack group and an outer-side cell stack group disposed, respectively, in the inner side region and in the outer side region of a cell disposition region. The inner-side cell stack group and the outer-side cell stack group are mutually connected in series and are configured such that the current density of the outer-side cell stack group is greater than the current density of the inner-side cell stack group.
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
A turbine blade (21) has a ventral surface (21P) that extends in the radial direction, which intersects a vapor flow direction, and faces the upstream side of the flow direction. A slit (5) is formed on the downstream side in the ventral surface (21P) and captures droplets generated as a result of the liquefaction of vapor. A region of micro recesses/protrusions (6), which guides droplets adhered to the ventral surface (21P) in the radial direction toward the slit (5) from the upstream side to the downstream side, is formed further upstream than the slit (5). In the region of micro recesses/protrusions (6), resistance to the flow of droplets gradually increases from the inside to the outside in the radial direction.
This fuel cell power generation system is provided with a first fuel cell and a second fuel cell for generating electric power by using a second fuel gas discharged from the first fuel cell. The amount of an oxidant gas to be supplied to the second fuel cell is adjusted by means of an adjusting valve such that the temperature of the second fuel cell becomes a reference value.
H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
A fuel cell stack according to one embodiment of the present invention is provided with: a plurality of fuel cells, each of which comprises a base material, and a fuel-side electrode, a solid electrolyte membrane and an oxygen-side electrode that are superposed on the base material; an interconnector film which electrically connects the fuel-side electrode of one fuel cell of two adjacent fuel cells among the plurality of fuel cells and the oxygen-side electrode of the other fuel cell to each other; and a porous ceramic film which covers at least the interconnector film in the region between a first fuel-side electrode of one fuel cell of the two adjacent fuel cells and a second fuel-side electrode of the other fuel cell.
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M 8/2428 - Grouping by arranging unit cells on a surface of any form, e.g. planar or tubular
This diaphragm for a steam turbine has a diaphragm inner wheel, a diaphragm outer wheel, and a wing section that are integrally formed, wherein: the diaphragm comprises a collector ring that holds a seal fin having a radial spill strip structure, and an adapter ring that is interposed between the diaphragm outer wheel and the collector ring; the collector ring and the adapter ring have an outer diameter that is larger than the diaphragm outer wheel; the diaphragm outer wheel and the adapter ring are interconnected using a plurality of first bolts; the opposing surfaces of the diaphragm outer wheel and the adapter ring are brought into close contact with each other so as to be sealed; and the collector ring and the adapter ring are interconnected using a plurality of second bolts in positions further on the outer circumferential side than the seal fin.
A burner tip for mixing and spraying a liquid fuel and a spray medium, said burner tip comprising: a mixing chamber formation section that forms a mixing chamber for mixing a liquid fuel and a spray medium; a plurality of liquid fuel supply passages configured so as to supply the liquid fuel along the radial direction of the burner tip to the mixing chamber; a plurality of spray medium supply passages configured so as to supply the spray medium along the axial direction of the burner tip to the mixing chamber; and a plurality of mixed fluid spray holes that are formed in the mixing chamber formation section and are for spraying the fluid mixed in the mixing chamber from the mixing chamber to the exterior of the mixing chamber formation section. When the length of the mixed fluid spray holes is L and the hole diameter of the mixed fluid spray holes is d, the relationship L/d ≤ 2.0 is satisfied.
F23D 11/10 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
F23D 11/12 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour characterised by the shape or arrangement of the outlets from the nozzle
F23D 11/18 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour the gaseous medium being water vapour generated at the nozzle
59.
GAS TURBINE PLANT AND EXHAUST CARBON DIOXIDE RECOVERY METHOD THEREFOR
MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD. (Japan)
Inventor
Nagafuchi Naoyuki
Tsutsumi Atsushi
Kamijo Takashi
Shigeta Hiroaki
Abstract
This gas turbine plant is provided with: an exhaust line (L1); a carbon dioxide recovery device (3) which recovers carbon dioxide contained in an exhaust gas; a circulation line (L2) connected to a gas turbine (1); a first valve device (V1); a bypass line (L3) bypassing the carbon dioxide recovery device (3); a second valve device (V2) provided on the bypass line (L3); a third valve device (V3) provided at a position between the bypass line (L3) and the carbon dioxide recovery device (3); a densitometer (D) which detects the carbon dioxide concentration of the exhaust gas; and a control device (90) which adjusts the openings of the first valve device (V1), the second valve device (V2), and the third valve device (V3) on the basis of the carbon dioxide concentration and the operating state of the gas turbine (1).
F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
F01K 13/02 - Controlling, e.g. stopping or starting
F01K 17/04 - Use of steam or condensate extracted or exhausted from steam engine plant for specific purposes other than heating
F02C 3/34 - Gas-turbine plants characterised by the use of combustion products as the working fluid with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle
This unmanned aircraft, which is configured to fly in a closed space, comprises an airframe, a thrust generation means that is configured to generate thrust for the airframe to fly in the air, and a length measurement means that is mounted on the airframe, wherein the length measurement means has: a transmission unit that is configured to transmit measurement waves; a reception unit that is configured to receive reflected waves of the measurement waves; and a distance calculation unit that is configured to calculate a distance to a stationary object present in the closed space on the basis of the reflected waves of the measurement waves transmitted from the transmission unit, the reflected waves being received by the reception unit a plurality of times.
A fuel battery module according to one embodiment of the present invention is provided with: at least one cell stack including a plurality of fuel battery cells that are supplied with fuel gas and oxidizing gas and that generate power; a sealed housing in which the at least one cell stack is stored and in the interior of which a power generation chamber is formed; a pressure vessel for accommodating said housing; and an oxidizing-gas supply pipe for supplying oxidizing gas to the cell stack. At least one pressure equalizing opening for communicatively connecting the inside and the outside of the housing is formed in the housing. The at least one pressure equalizing opening includes either only one pressure equalizing opening or a plurality of pressure equalizing openings in which the spacing between the pressure equalizing opening located at the highest position and the pressure equalizing opening located at the lowest position is 0.1H or less, where H is the height of the housing.
H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M 8/2475 - Enclosures, casings or containers of fuel cell stacks
A turbine blade (21) has a ventral surface (21P) that extends in the radial direction, which intersects with a vapor flow direction, and faces the upstream side of the flow direction. A slit (5) is formed on the downstream side in the ventral surface (21P), extends radially, and captures a component of vapor that has liquefied. A hydrophilic uneven region (6) is formed more on the upstream side than the slit (5) and has a larger liquid film allowance than the ventral surface (21P) as a result of being recessed in the depth direction intersecting with the ventral surface (21P). In the hydrophilic uneven region (6), the dimension in the depth direction increases and the flow resistance decreases toward the slit (5), the further toward the downstream side the hydrophilic uneven region (6) goes.
A passenger compartment (1) comprises: a passenger compartment body (1B), which covers a rotor (21) of a steam turbine (100) from the outer side, and in which is formed an exhaust port (E) through which steam is horizontally exhausted; an overhanging part (22A) that horizontally widens from the outer surface of the passenger compartment body (1B); and a support part (30) that supports the overhanging part (22A) on a baseplate; the support part (30) restraining vertical displacement of the overhanging part (22A) relative to the baseplate, and securing the overhanging part (22A) to the baseplate so as to allow the overhanging part (22A) to be horizontally deformed or displaced.
A turbine rotor fixing device that enables fixing the radial direction and the axial direction of a turbine rotor with ease, and a turbine module transport method are provided. This fixing device (30) of a turbine rotor (11) is provided with: a radial direction fixing jig (32) which is provided on a ground part (21A) which seals the interval between the turbine rotor (11) and a turbine wheel chamber provided to cover the periphery of the turbine rotor (11), and which locks movement of the turbine rotor (11) relative to the ground part (21A) in the radial direction; and an axial direction fixing jig (31) which is provided between the turbine rotor (11) and the ground part (21A) and which locks movement of the turbine rotor (11) relative to the ground unit (21A) in the axial (X) direction.
This denitration device includes: a denitration agent supply system; and a reactor duct having a flowpath through which exhaust gas from a boiler flows. Inside the reactor duct a screen plate and a catalyst fixed bed are provided in that order along the flow of the exhaust gas. The screen plate is constituted by a plurality of beams disposed at the entrance in the reactor duct, and a plurality of screen plate units. Each screen plate unit is fit between one beam and another beam.
Provided are an overfire air port that with only partial modification enables the supply of highly straight jets and horizontally spread out jets into a furnace and a combustion device equipped with the overfire air port. An overfire air port (3, 3A) comprises: a straight flow path (31) that is formed concentrically in a multi-tube structure and ejects primary air for two-stage combustion into a furnace (11) in a straight flow (ST); and a swirling flow path (32, 33, 34) that is provided on the outer periphery of the straight flow path (31) and ejects secondary air for two-stage combustion into the furnace (11) in a swirling flow (SW). Provided at the jet outlet (32A, 33A, 34A) of the swirling flow path (32, 33, 34) are: a pair of swirling stop members (41A, 41B) that are arranged so as to sandwich the straight flow path (31) in the vertical direction and block the swirling flow (SW) to change the flow to the straight direction; and a pair of guide vanes (42A, 42B) that are arranged so as to sandwich the straight flow path (31) in the horizontal direction and deflect the swirling flow (SW) to both outer sides in the horizontal direction.
A control device is configured so as to perform communication with another device through a communication network. The control device is provided with: a key acquisition unit configured to acquire, from a key distribution server through the communication network, an encryption key with a life period for performing encrypted communication with the other device; an encrypted communication unit configured to execute the encrypted communication with the other device using the encryption key within the life period; a server state detection unit configured to detect a key acquisition disabled state which is a state in which the acquisition of the encryption key by the key acquisition unit cannot be performed; and a life extension unit configured to execute extension processing for extending the life period when the key acquisition disabled state is detected.
H04L 9/16 - Arrangements for secret or secure communicationsNetwork security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
68.
METAL POWDER MANUFACTURING DEVICE, AND CRUCIBLE APPARATUS AND MOLTEN METAL NOZZLE FOR SAME
The present invention is a metal powder manufacturing device provided with: an atomization tank (4); a crucible (11) in which a molten metal (8) is stored; a molten metal nozzle (12) that allows the molten metal (8) stored in the crucible (11) to flow downward into the atomization tank (4); and a fluid spraying nozzle (22) comprising a plurality of spraying nozzles (21) that spray a fluid (7) to the atomization tank (4)-side end part (12b) of the molten metal nozzle (12), and automizes a molten metal flow (8a) flowing downward from the molten metal nozzle (12), wherein the molten metal nozzle (12) is provided with a molten metal nozzle body (12c) and an orifice part (12d) that has an inner diameter no greater than the inner diameter of the molten metal nozzle body (12c), the material of the orifice part (12d) being harder than the material of the molten metal nozzle body (12c).
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
69.
APPARATUS FOR MANUFACTURING METAL POWDER AND GAS INJECTOR THEREOF
This apparatus for manufacturing metal powder comprises: a first gas injection nozzle (71) that includes a plurality of injection holes (91) arranged on the bottom surface of a gas injector (200) such that a first ring (61) is drawn near each of a plurality of molten metal nozzle insertion holes (12A, 12B), and injects gas to molten metal flowing down from molten metal nozzles (11A, 11B) to crush the molten metal; a second gas injection nozzle (72) that includes a plurality of injection holes (92) arranged on the bottom surface of the gas injector (200) such that a second ring (62) is drawn outside each first ring (61), and injects the gas in order to prevent metal particles (15) crushed by the first gas injection nozzle (71) from scattering; and a third gas injection nozzle (73) that includes a plurality of injection holes (93) arranged on the bottom surface of the gas injector (200) such that a third ring (63) is drawn outside the second gas injection nozzle (72), and injects the gas onto the inner wall surface of a spray tank (4).
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
70.
PULVERIZER, BOILER SYSTEM, AND OPERATION METHOD FOR PULVERIZER
The purpose of the present invention is to suppress accumulation of a pulverized solid fuel in a carrier gas supply duct. A mill (10) that comprises: a housing (11) that forms a shell; a rotary table (12) that is provided inside the housing (11); a primary air duct (27) that is connected to the housing (11) and supplies, to the inside of the housing (11), primary air (29) that is for carrying solid fuel that has been pulverized on the rotary table (12) to the outside of the housing (11); a first assist gas spraying nozzle (61) that is provided inside the primary air duct (27) and sprays steam toward a duct outlet (28); and a second assist gas spraying nozzle (62) that is provided inside the primary air duct (27) and sprays steam so as to cover a cross-section of the primary air duct (27).
This rotating machine is provided with: a casing 11 having a hollow shape; a rotor 12 supported with freedom to rotate inside the casing 11; stationary blades 13 fixed to an inner circumferential portion of the casing 11; moving blades 14 fixed to an outer circumferential portion of the rotor 12, offset in an axial direction A of the rotor 12 relative to the stationary blades 13; a sealing device 15 disposed between the inner circumferential portion of the casing 11 and tip end portions of the moving blades 14; a swirling flow generating chamber 31 provided extending in a circumferential direction C of the rotor 12 on a downstream side, in a steam flow direction A1, of the sealing device 15 in the casing 11; a plurality of first guiding members 32 provided extending in a radial direction R of the rotor 12 in the swirling flow generating chamber 31, with a prescribed spacing in the circumferential direction C of the rotor 12; and a second guiding member 33 provided extending in the circumferential direction C of the rotor 12 in the swirling flow generating chamber 31, intersecting the plurality of first guiding members 32.
A mill (10) comprises: a housing (11); a rotating table (12) and a roller (13) which crush a solid fuel into a fine powder solid fuel; a classifier; a primary air flow channel which supplies primary air that conveys the fine powder solid fuel on the rotating table (12) to the classifier; and a drift plate (60) which is provided to an internal peripheral surface and which has a first inclined surface (64) extending at a downward slant toward the center axis of the housing (11) and a second inclined surface (65) extending at an upward slant toward the center axis. The drift plate (60) is provided between the plurality of rollers (13), at a position at the same height as the rollers (13), and the circumferential side end edges of the first inclined surface (64) and the second inclined surface (65) are both inclined so that the radially inward ends of the side end edges on one side and the radially inward ends of the side end edges on the other side are close to the radial direction of the rotating table (12).
B02C 15/04 - Mills with pressed pendularly-mounted rollers, e.g. spring pressed
B02C 25/00 - Control arrangements specially adapted for crushing or disintegrating
B07B 7/083 - Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
F23K 1/00 - Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
F23K 3/02 - Pneumatic feeding arrangements, i.e. by air blast
B02C 23/26 - Passing gas through crushing or disintegrating zone characterised by point of gas entry or exit or by gas flow path
A rotary machine is provided with: a casing 11 that has a hollow shape; a rotor 12 that is rotatably supported inside the casing 11; a stationary blade 13 that is fixed to an inner peripheral part of the casing 11; a moving blade 14 that is fixed to an outer peripheral part of the rotor 12 so as to be deviated in an axial direction A of the rotor 12 with respect to the stationary blade 13; a seal device 15 that is arranged between the inner peripheral part of the casing 11 and a tip end part of the moving blade 14; a swirling flow generation room 31 that is provided along a circumferential direction C of the rotor 12 on the side closer to a downstream side in a steam flow direction A1 than the seal device 15 in the casing 11; and a plurality of guide members 32 that are provided at given intervals in the circumferential direction C of the rotor 12 in the swirling flow generation room 31. The guide members 32 have a first guide surface 33 that is inclined in the circumferential direction C with respect to the axial direction A of the rotor 12.
This rotary machine comprises: a casing 11 that is hollow inside; a rotor 12 rotatably supported inside the casing 11; a moving blade 14 secured to the outer peripheral section of the rotor 12; a stationary blade 13 that is, in the steam flow direction A1, disposed on the downstream side of the moving blade 14 and that is secured to the inner peripheral section of the casing 11; a seal device 15 disposed between the inner peripheral section of the casing 11 and the leading ends of the moving blades 14; a swirl flow generating chamber 31 provided on the downstream side, in the steam flow direction A1, of the seal device 15 in the casing 11, along the circumferential direction C of the rotor 12; and a plurality of guide members 32 that are provided in the swirl flow generating chamber 31 along a radial direction R of the rotor 12, with prescribed gaps therebetween in the circumferential direction C of the rotor 12. In the swirl flow generating chamber 31, a first wall surface 47, which is on the downstream side in the steam flow direction A1, is positioned on the downstream side in the steam flow direction A1 of a front edge 13a of the stationary blade 13, the front edge 13a being on the upstream side in the steam flow direction A1.
A reducing agent supply device for supplying a reducing agent on the upstream-side of SCR catalyst in an exhaust gas flow channel, said reducing agent supply device being provided with: at least one header pipe, which extends inside the flow channel and is configured so that the reducing agent can flow through the interior thereof; multiple jetting nozzles, which are provided in the header pipe separated along the direction in which the header pipe extends and are configured so as to be able to jet the reducing agent into the flow channel; a heat-shielding plate, which is provided on the upstream side of the header pipe in the exhaust gas flow direction and the longitudinal direction of which runs parallel to the direction in which the header pipe extends; and at least one fixing part, which contacts each of the heat-shielding plate and the header pipe and fixes the heat-shielding plate to the header pipe. The at least one fixing part is provided at at least one site in the direction in which the header pipe extends.
This burner comprises at least one mixing pipe that extends inside a fuel plenum and that is configured to have air supplied therein, and a plurality of fuel injection holes for injecting fuel supplied to the fuel plenum into the at least one mixing pipe. The central axis of each of the plurality of fuel injection holes is inclined in the same direction with respect to the radial direction of the mixing pipe in relation to the circumferential direction of the mixing pipe when viewing the at least one mixing pipe in the axial direction of the mixing pipe.
F23D 11/10 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
F23D 11/12 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour characterised by the shape or arrangement of the outlets from the nozzle
Provided is technology to efficiently store and use, in a plurality of different temperature ranges, excess energy generated at a power generation plant. A heat storage device 140 that has a plurality of heat storage units to recover and accumulate heat from a fluid passing through a channel provided therein is characterized by comprising a first heat storage unit that has temperature characteristics in a first temperature range, a second heat storage unit that has temperature characteristics in a second temperature range, which is a lower temperature range than the first temperature range, a first channel 241 that causes inflowing fluid to pass through the first heat storage unit and the second heat storage unit in order, a second channel 242 that causes the inflowing fluid to bypass the first heat storage unit and pass through the second heat storage unit, a first on-off valve 251 that is provided on the first channel 241, and a second on-off valve 252 that is provided on the second channel 242, wherein the first on-off valve 251 is in an open state if the fluid temperature is at a first temperature threshold or higher and the second on-off valve 252 is in an open state if the fluid temperature is less than the first temperature threshold.
F24H 7/02 - Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
F01K 3/02 - Use of accumulators and specific engine typesControl thereof
F01K 27/02 - Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
F28D 20/02 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or using latent heat
The present invention is provided with a venturi (33) in which a mixed fluid channel (24) in a fuel nozzle (21) narrows in the channel cross section toward the center, a fuel concentrator (34) that applies a velocity component away from the center of the fuel nozzle (21) to the mixed fluid, and a channel separation member (36) that separates the fuel nozzle (21) channel into an internal side and an external side. The effectiveness of concentrating the fuel can be ensured even in cases of using solid fuel particles of pulverized biomass fuel by way of a plurality of blades (34c, 34d) that cause the mixed fluid to swirl and are not entirely fixed to the internal side of the fuel nozzle (21).
A denitration device that has: an inlet duct having a flowpath that causes exhaust gas from a boiler to flow in the horizontal direction; a connecting duct having a flowpath that changes the flow of exhaust gas from the horizontal direction to the vertical direction; and a reactor duct having a flowpath that causes the exhaust gas to flow in the vertical direction. The reactor duct has therein, in order along the exhaust gas flow, a screen plate, a denitriding agent supply line system, and a fixed bed including a denitriding catalyst. The denitriding agent supply line system has: a heat exchange line for heating the denitriding agent using the heat held by the exhaust gas; a transportation line for supplying the denitriding agent heated by the heat exchange line to a nozzle; and the nozzle, for injecting the denitriding agent supplied via the transportation line to the reactor duct.
The present invention is provided with: a venturi (33) that constricts a channel (24) for a mixed fluid in a fuel nozzle (21) toward the center in a cross-section of the channel; a fuel enricher (34) that imparts a velocity component in a direction leading away from the center of the fuel nozzle (21) to the mixed fluid; and a channel partition member (36) that partitions the channel of the fuel nozzle (21) into an inner side and an outer side. Even if solid fuel particles produced by pulverizing a biomass fuel are used, the degree of enrichment of the fuel can be ensured by using a plurality of blades (34c, 34d) which impart swirl to the mixed fluid and which are not secured to the inner side of the fuel nozzle (21) along the entire surface thereof.
A turbine moving blade is provided with a leading edge part on which a plurality of cooling holes are formed. The plurality of cooling holes include m (where m is an integer of two or more) arranged in a first range in a blade height direction and n (where n is an integer of two or more) arranged in a second range on a side closer to a blade tip end than the first range in the blade height direction. When the dimension of the first range in the blade height direction is a and the dimension of the second range in the blade height direction is b, n/b < m/a is satisfied.
This plant maintenance supporting apparatus of an embodiment comprises: a damage probability calculator that, for each of a plurality of inspection sites of a plant, calculates damage probability showing the probability of the damage of each of the inspection sites reaching an allowable limit using inspection results that include a plurality of measured values showing the damage of each of the inspection sites; and a first display command generating unit configured to generate a first display command for displaying on a display device the plurality of inspection sites using a format by which the size relationship of each damage probability can be ascertained.
A liquid column-type absorption tower provided with: an absorption tower body that has an internal space; and a liquid column nozzle that is provided in the internal space and is configured so as to jet a cleaning solution upward as a liquid column. A method for modifying a liquid column-type absorption tower comprising: a spraying device addition step for adding a spraying device, which is configured so as to spray the cleaning solution downward, at a position above the liquid column nozzle; and a cleaning solution supply line addition step for adding at least one cleaning solution supply line for supplying the cleaning solution to the spraying device.
Provided is a burner that can reduce variations in a burner body distal end positional error at the time when inserting the burner body. A burner (161) comprises: a burner body (162); a plurality of drive cylinders (163) that are disposed so as to be parallel with the axial direction in which the burner body (162) moves and that drive the movement of the burner body (162); a connection member that connects the burner body (162) and the plurality of drive cylinders (163); and an engagement member (170) that is provided between the burner body (162) and the connection member and that constrains relative motion in the axial (X) direction and allows relative motion in a direction orthogonal to the axial (X) direction.
This bearing device has: a bearing pad (50) supporting an outer circumferential surface of a rotation shaft rotatably around the axis of the rotation shaft; a nozzle (80) that is disposed on the upstream side of the bearing pad (50) in a rotational direction (T) of the rotation shaft, and has a supply hole (85) for supplying lubrication oil to the outer circumferential surface of the rotation shaft; a pair of side plates (60) disposed on both sides of the nozzle (80) with respect to the axial direction and facing the outer circumferential surface of the rotation shaft on the upstream side of the nozzle (80) in the rotational direction (T), at least one of the pair having formed a discharge hole (61) penetrating through the one side plate in the axial direction; and a guide surface (86) which, at a position between the supply hole (85) and the discharge hole (61) in the circumferential direction, faces the upstream side in the rotational direction (T) and extends in the axial direction along the outer circumferential surface of the rotation shaft.
This fluid delivery apparatus is configured to deliver, to a plurality of delivery destinations, a slurry liquid that is to be brought into contact with exhaust gas discharged from a combustion apparatus, the fluid delivery apparatus being provided with: a first delivery line for delivering the slurry liquid from a delivery source to a first delivery destination; a return line which branches off from the first delivery line at a first bifurcation part so as to return the slurry liquid to the delivery source; a second delivery line which branches off from the return line at a second bifurcation part so as to deliver the slurry liquid to a second delivery destination that is different from the first delivery destination; and a delivery destination switching device which is configured to be capable of switching the delivery destination of the slurry liquid flowing in the return line on the upstream side of the second bifurcation part either to a point in the return line downstream of the second bifurcation part or to the second delivery line.
An exhaust chamber (25) is equipped with: a diffuser (26) that forms a diffuser space (26s); an exhaust casing (30) that forms an exhaust space (30s) communicating with the diffuser space (26s); and an auxiliary exhaust frame (40) that forms an auxiliary exhaust space (40s) having an annular shape centered around an axis (Ar), on the inside (Dri) of the diffuser (26) in the radial direction. The auxiliary exhaust frame (40) has an opening (41) that opens toward the outside (Dro) in the radial direction from the interior of the auxiliary exhaust space (40s), and that enables the exhaust space (30s) and the auxiliary exhaust space (40s) to communicate with each other.
The purpose of the present invention is to provide a method and an apparatus for cleaning and maintaining a boiler plant, by which, in a period between chemical cleaning and initiation of normal operation, it is possible to subject parts of a boiler to be cleaned to a rust-proofing treatment at low cost and in a short time, and to maintain the boiler. This method for maintaining a boiler plant includes: a step (S2) for subjecting parts to be cleaned, which have scale attached thereto, to neutral cleaning at room temperature using a neutral cleaning liquid containing a rust preventive agent; a step (S4) for circulating an aqueous solution of an ammonia-based compound having a pH of 9.8 or more at room temperature to the parts to be cleaned; and a step (S5) for blowing the aqueous solution of an ammonia-based compound from the parts to be cleaned.
A steam valve having a first inclined surface (61b), which is formed at the distal end portion (61A) of a valve rod (61) and in which the outer diameter of the valve rod (61) increases from the distal end toward the base end of the valve rod (61), and a second inclined surface (76d), which is formed on the inside of a portion of a master valve (64) that is positioned on the base-end side of the valve rod (61) and which inclines with the same inclination angle as the first inclined surface (61b). In a state in which a slave valve (62) and the master valve (64) are closed the first inclined surface (61b) and the second inclined surface (76d) are separated from each other, and when the slave valve (62) and the master valve (64) are in a fully open state the first inclined surface (61b) and the second inclined surface (76d) abut each other.
Provided are: a slag crusher capable of securing the strength of a guide rod; a gasification furnace; a gasification combined power generation facility; and a method for assembling the slag crusher. This slag crusher is provided with: a screen which is a porous member; a spreader that crushes a slag deposited on the screen and advances/retreats in a predetermined direction along an upper surface vertically above the screen; and a guide rod (300) which is a rod-like member having the axial line along the predetermined direction, is connected to the spreader, and restricts the movement direction of the spreader. The guide rod (300) has a spreader-side member (320) connected to the spreader and a shaft member (340) connected to the spreader-side member (320), wherein the spreader-side member (320) and the shaft member (340) are joined by butt welding in the axial direction thereof, and have the same cross-sectional shapes perpendicular to the axial direction at a position where the spreader-side member (320) and the shaft member (340) are butt-welded.
MITSUBISHI HITACHI POWER SYSTEMS ENVIRONMENTAL SOLUTIONS, LTD. (Japan)
Inventor
Bun Ryota
Kiyosawa Masashi
Nagayasu Hiromitsu
Ueda Yasutoshi
Kagawa Seiji
Miyake Kazuaki
Abstract
An airflow channel 115 of an air purification device 100 connects a lower vent opening 113 and an upper vent opening 114, and a fan unit 118 causes air to flow in the airflow channel 115 so that one of the lower vent opening 113 and the upper vent opening 114 serves as an intake opening to draw in air from the outside and the other of the lower vent opening 113 and the upper vent opening 114 serves as an exhaust opening to discharge air to the outside. The airflow channel 115 is provided with a dust collection unit 119 that physically or chemically adsorbs particulate matter in the air flowing in the airflow channel 115. The total area of the lower vent opening 113 is larger than the cross-sectional area of the region of the airflow channel 115 through which air passes through the dust collection unit 119.
A platy chemical heat-storage object which comprises a substrate constituted of a metallic net and a heat-storage material composition fixed to the substrate, wherein the heat-storage material composition includes at least one compound selected from the group consisting of the hydroxide or oxide of magnesium, the hydroxide or oxide of strontium, the hydroxide or oxide of barium, the hydroxide or oxide of calcium, and calcium sulfate and further, according to need, includes at least one substance selected from the group consisting of titanium dioxide, silicon dioxide, alumina silicate fibers, E-glass fibers, and cellulose.
A turbine blade is provided with: a blade shape part having a pressure surface and a negative pressure surface that extend between a front edge and a rear edge thereof; and a platform including an end wall to which a base end of the blade shape part is connected. The end wall includes a negative pressure surface side recessed part that is positioned at least in a negative pressure surface side region of the end wall and a pressure surface side protruding part that is positioned at least in a pressure surface side region of the end wall. The negative pressure surface side recessed part has a bottom point that is positioned on an upstream side in an axial direction than a contact point between the negative pressure surface and a tangent line extending in the axial direction of the negative pressure surface. With respect to one or more contour lines on the negative pressure surface side recessed part of the end wall, a normal line vector having a negative gradient along normal lines of the contour lines at the intersections between the negative pressure surface and the contour lines is directed to the blade shape part. The pressure surface side protruding part has an apex that is positioned on a downstream side in the axial direction than the contact point.
The purpose of the present invention is to provide a Co-based alloy laminate molded body which is a Co-based alloy material that has the same or better mechanical characteristics as precipitation-strengthened Ni-based alloy materials, a Co-based alloy product based on said laminate molded body, and a manufacturing method of these. This Co-based alloy product is characterized by having a chemical composition that contains 0.08-0.25 mass% C, less than or equal to 0.1 mass% B, 10-30 mass% Cr, Fe and Ni with Fe less than or equal to 5 mass% and the total less than or equal to 30 mass%, a total of 5-12 mass% W and/or Mo, a total of 0.5-2 mass% of Ti, Zr, Nb and Ta, 0.5 mass% or less Si, 0.5 mass% or less Mn, and 0.003-0.04 mass% N, the remainder being Co and impurities, and in that the aforementioned product is a polycrystal with an average crystal grain size of 20-145 μm, and inside of the crystal grains of the polycrystal, MC-type carbide phase particles, which contain the aforementioned Ti, Zr, Nb and/or Ta, are precipitated with an average inter-particle distance of 0.15-1.5 μm.
B33Y 70/00 - Materials specially adapted for additive manufacturing
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
This exhaust gas desulfurization device comprises: an absorption column configured in such a manner as to cause gas-liquid contact of a cleaning liquid with an exhaust gas, the absorption column containing, in the interior thereof, a liquid pooling section in which the cleaning liquid is stored; and a gas-liquid mixing device containing a first spray nozzle configured such that the distal end thereof is inserted into an insertion hole formed in a first side wall of the absorption column, and a mixed fluid of the cleaning liquid and the oxygen-containing gas is sprayed from a first discharge port into the liquid pooling section. The first spray nozzle includes a cylindrical section, and a first fastening part provided to protrude from the outer periphery of the cylindrical section in a direction orthogonal to the central axis of the first discharge port. The absorption column further contains: a cylindrical protrusion section provided to protrude outward from the peripheral edge part of the insertion hole formed in the first side wall, along a direction tilted from the horizontal plane at an angle θ, where θ represents the tilt angle from the horizontal plane of the central axis of the first discharge port; and a second fastening part provided to protrude from the distal end of the cylindrical protrusion section along a direction that is orthogonal to the direction in which the cylindrical protrusion section extends, and configured so as to be fixed to the first fastening part by the fastening device.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
This gas-liquid mixing device is configured to spray an oxygen-containing gas and a cleaning liquid into a liquid pooling section for storing a cleaning liquid in an absorption column that causes gas-liquid contact of the cleaning liquid and an exhaust gas. This gas-liquid mixing device comprises: a first cylindrical section having formed therein a cleaning liquid introduction port demarcating a first flow path in the interior thereof, for introducing the cleaning liquid into the first flow path, a gas introduction port for introducing a gas into the first flow path along a direction orthogonal to the flow direction of the cleaning liquid introduced from the cleaning liquid introduction port and flowing in the first flow path, and a discharge port discharging a mixed fluid of the gas and the cleaning liquid; and a constriction part provided more on the upstream side in the flow direction of the cleaning liquid than a flow-merging portion wherein the flow of the cleaning liquid introduced from the cleaning liquid introduction port and the gas introduced from the gas introduction port merge. When D1 represents the inner diameter of the discharge port, and D2 represents the inner diameter of the gas introduction port, the gas-liquid mixing device satisfies the condition: 0.5 < D2/D1 < 0.8.
This spraying nozzle is provided with: a first cylinder part in which there are formed a cleansing liquid introduction opening for introducing a cleansing liquid, a gas introduction opening for introducing a gas along a direction orthogonal to the flow direction of the cleansing liquid, and a discharge opening for discharging a mixed fluid of the cleansing liquid and the gas; a throttling part provided farther upstream in the flow direction of the cleansing liquid than a merge part at which the cleansing liquid and the gas merge; and a second cylinder part in which there is formed a second gas introduction opening for introducing the gas into a second flow path that communicates with the gas introduction opening. This gas-liquid mixing device includes: the spraying nozzle; and an expansion joint that includes a barrel part configured so as to be capable of expanding and contracting, the expansion joint being provided to a cleansing liquid introduction line for sending the cleansing liquid from the cleansing liquid introduction opening into a first flow path and/or to a gas introduction line for sending the gas from the second gas introduction opening into the second flow path.
This gas turbine combustor is provided with: a flange part which is attached to a casing; an annular extension part which extends from the flange part along the axial direction of the combustor; a pipe which has a first end connected to the flange part and a second end connected to an outer circumferential surface of the extension part and which extends from the first end to the second end on the radially outer side of the extension part; and at least one fuel nozzle that is configured to receive fuel supplied through the pipe and a passageway disposed within the extension part.
A turbine rotor blade that comprises: a base end part that is fixed to a rotor shaft; and a blade part that includes a pressure surface, a suction surface, and a top surface that connects the pressure surface and the suction surface. The blade part has a cooling passage formed thereinside. The top surface of the turbine rotor blade includes: a leading edge region that is located on a leading edge side and is parallel to the rotor shaft of the turbine rotor blade; and a trailing edge region that is adjacent to the leading edge region of the turbine rotor blade. The trailing edge region has a sloped surface that slopes toward the radial-direction inside in the direction of a trailing edge.
F01D 5/20 - Specially-shaped blade tips to seal space between tips and stator
F01D 5/08 - Heating, heat-insulating, or cooling means
F01D 11/16 - Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means
F01D 25/00 - Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
F02C 7/00 - Features, component parts, details or accessories, not provided for in, or of interest apart from, groups Air intakes for jet-propulsion plants
In the present invention: a plurality of resistance impartment parts (34A-34E) are arranged adjacent to each other; and a first contraction flow part, which constitutes resistance impartment parts on one side among the resistance impartment parts (34A-34E) adjacent to each other, communicates with an increased diameter part constituting resistance impartment parts on the other side; and the first contraction flow parts (32AH-32DH) constituting the resistance impartment parts (34A-34E) adjacent to each other are arranged at different positions in the direction in which an outer frame member (31) extends.
F28D 7/06 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
F15D 1/02 - Influencing the flow of fluids in pipes or conduits
F28F 1/00 - Tubular elementsAssemblies of tubular elements
