A multi-process coupled power generation system combusting fossil fuel and oxygen-rich combustion waste, comprising a fire coal boiler (B1), and further comprising an oxygen-rich combustion waste incinerator (A1); waste to be treated (AF1) and filtrate (AF2) are conveyed to the oxygen-rich combustion waste incinerator (A1), the temperature of high-temperature flue gas generated by the oxygen-rich combustion waste incinerator (A1) is lowered to T1 after passing through a bypass economizer (S11), the flue gas having a temperature of T1 is conveyed to a dioxin suppression device after sequentially passing through an evaporator (S23) and a superheater (S24), the temperature of the flue gas out of the dioxin suppression device is lowered to T2 after passing through a secondary economizer (S22), and the flue gas having a temperature of T2 is divided into two paths of flue gas, one path of the flue gas being conveyed, by means of a high-temperature fan (A3), to the hearth of the fire coal boiler (B1), and the other path of the flue gas entering, after being boosted by a recirculation fan (A4), the hearth of the oxygen-rich combustion waste incinerator (A1) through a primary air passage (A6) and a secondary air passage (A7) respectively. Said system has little influence on the combustion process of the fire coal boiler (B1), both greatly reducing the requirement for a method of introducing into the hearth of the fire coal boiler (B1), and reducing the degree of damage to a water cooling wall.
F23G 5/44 - Procédés ou appareils, p. ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres Parties constitutivesAccessoires
F23C 9/06 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion destinés à obtenir une combustion complète
F23J 15/06 - Aménagement des dispositifs de traitement de fumées ou de vapeurs des appareils de refroidissement
F23L 7/00 - Alimentation du foyer en liquides ou gaz non combustibles autres que l'air, p. ex. oxygène, vapeur d'eau
2.
Solid fuel grade gasification-combustion dual bed poly-generation system and method thereof
F23C 10/10 - Appareils dans lesquels la combustion a lieu dans un lit fluidisé de combustible ou d'autres particules avec des moyens spécialement adaptés pour obtenir ou activer un mouvement de circulation des particules à l'intérieur du lit ou pour remettre en circulation les particules entraînées à l'extérieur du lit les particules étant entraînées vers une section, p. ex. une section d'échange de chaleur ou une conduite de retour, au moins partiellement séparée de la zone de combustion, avant d'être réintroduites dans la zone de combustion caractérisés par l'agencement de l'appareil de séparation, p. ex. des cyclones, pour séparer les particules des gaz de fumée l'appareil de séparation étant situé à l'extérieur de la chambre de combustion
C10J 3/54 - Gazéification des combustibles granuleux ou pulvérulents par la technique de Winkler, c.-à-d. par fluidisation
C10J 3/84 - Moyens d'extraction des gaz avec moyens de dépoussiérage ou de dégoudronnage du gaz
F23C 10/00 - Appareils dans lesquels la combustion a lieu dans un lit fluidisé de combustible ou d'autres particules
3.
SOLID FUEL STAGED GASIFICATION-COMBUSTION DUAL-BED POLYGENERATION SYSTEM AND METHOD
A solid fuel staged gasification-combustion dual-bed polygeneration system comprises a combustion system, a gasification system, a synthesis gas cooling and purification system and a synthesis gas methanation system. The combustion system is associated with the gasification system by means of a circulating feedback system. The combustion system uses circulating fluidized bed combustion. The gasification system uses a fluidized bed incomplete gasification method. Semi-coke generated returns to the combustion system for reuse. The synthesis gas cooling and purification system uses a water circulation and combustible recycling method. CO2 and water vapor produced in the synthesis gas methanation system as byproducts are recycled in the solid fuel staged gasification-combustion dual-bed polygeneration system, thereby maximizing the energy utilization efficiency in the system.
C10J 3/54 - Gazéification des combustibles granuleux ou pulvérulents par la technique de Winkler, c.-à-d. par fluidisation
C10J 3/84 - Moyens d'extraction des gaz avec moyens de dépoussiérage ou de dégoudronnage du gaz
F23C 10/10 - Appareils dans lesquels la combustion a lieu dans un lit fluidisé de combustible ou d'autres particules avec des moyens spécialement adaptés pour obtenir ou activer un mouvement de circulation des particules à l'intérieur du lit ou pour remettre en circulation les particules entraînées à l'extérieur du lit les particules étant entraînées vers une section, p. ex. une section d'échange de chaleur ou une conduite de retour, au moins partiellement séparée de la zone de combustion, avant d'être réintroduites dans la zone de combustion caractérisés par l'agencement de l'appareil de séparation, p. ex. des cyclones, pour séparer les particules des gaz de fumée l'appareil de séparation étant situé à l'extérieur de la chambre de combustion
A boiler provided with an external steam heater comprises a hearth (1) which is connected with a rear flue (2). A partition wall (5) in the middle of the rear flue (2) divides the rear flue (2) into a front rear flue (3) and a back rear flue (4). A first heat-absorbing surface (6) is provided in the front rear flue (3), and a first smoke-regulating baffle (8) is provided below the first heat-absorbing surface (6). A second heat-absorbing surface (7) is provided in the back rear flue (4), and a second smoke-regulating baffle (9) is provided below the second heat-absorbing surface (7). The boiler is characterized in that a heat-absorbing surface of the external steam heater is only provided in the first heat-absorbing surface or the second heat-absorbing surface. The external steam heater comprises an external steam heater inlet header (13) and an external steam heater outlet header (14), and the external steam heater inlet header (13) and the external steam heater outlet header (14) are respectively connected with two ends of the heat-absorbing surface of the external steam heater. The boiler has a simple structure and small occupation area, reduces the cost, and has good regulation performance.
A rich-lean pulverized coal separation and arrangement mode of direct-flow burners in eight corners with double fireballs for burning anthracite coal comprises a boiler body (1), a furnace (2), a coal grinding mill (3), a rich-lean pulverized coal separator (4), a pulverized coal pipe (5), a primary air/rich pulverized coal nozzle (6) and a primary air/lean pulverized coal nozzle (7). Each boiler body (1) is provided with eight groups of burners (10) which are located at the same level wherein four groups of burners (10) form an imaginary tangential circle (11) inside the furnace (2), and the other four groups of burners (10) form another imaginary tangential circle (12) inside the furnace (2). Each group of burners (10) is divided into two subgroups in the vertical direction wherein the first subgroup of burners (10) is named a primary air/rich pulverized coal burner, and the second subgroup of burners (10) is named a primary air/lean pulverized coal burner. On the premise of ensuring the power of the entire boiler, the rich-lean pulverized coal separate arrangement mode of direct-flow burners in eight corners with double fireballs can cause the thermal load of the wall of a burner zone to be relatively high; and the timely inflaming of anthracite pulverized coal air flow and the stable combustion of the boiler at low-load without fuel can be ensured.
Disclosed is a power station boiler economizer, comprising a feed water pipeline (4), an inlet header box (1), a heat exchange surface (2), an outlet header box (3) and an outlet pipeline (8), wherein the feed water is heated when the flue gas flows through the outside of the heat exchange surface (2), a first bypass pipeline (5) is provided between the feed water pipeline (4) and the outlet pipeline (8) for connecting the two, and furthermore, the first bypass pipeline (5) is provided with a bypass temperature-regulation device (9).
F22D 1/02 - Appareils de chauffage d'eau d'alimentation, p. ex. préchauffeurs avec tubes d'eau disposés dans le foyer de la chaudière, les tubes de fumées ou sur le trajet des fumées
F22D 1/12 - Dispositifs de commande, p. ex. pour réguler la température de la vapeur
7.
TOWER-TYPE BOILER WITH PRIMARY REHEATER AND SECONDARY REHEATER
A tower-type boiler with a primary reheater and a secondary reheater is provided. A super heater of the boiler comprises a low-temperature super heater and a high-temperature super heater (31). A main steam system flow of the boiler comprises the following steps: firstly, feeding water enters into a front flue coal economizer and a rear flue coal economizer (10) which are arranged in parallel, then water came from the outlets of the coal economizers (10) enters into water-cooling walls (1, 2) from the lower part of a hearth (6), wherein the outlets of the water-cooling walls (1, 2) are connected to a separator (19), and at last, the steam came out of the separator (19) enters into the low-temperature super heater and the high-temperature super heater (31) successively. Along the steam flow direction which is from a low temperature to a high temperature at the side of the steam, the primary reheater successively comprises a primary reheating low-temperature reheater (11) and a primary reheating high-temperature reheater, and the secondary reheater successively comprises a secondary reheating low-temperature reheater (12) and a secondary reheating high-temperature reheater. Furthermore, the primary reheater and the secondary reheater are in parallel with each other in a perpendicular flue.
F22B 31/08 - Installation dans la chaudière d'appareils échangeurs de chaleur ou de moyens de réchauffage de l'air de combustion
F22G 1/04 - Surchauffe de la vapeur caractérisée par la méthode de chauffage la chaleur étant fournie par les fumées chaudes provenant du foyer de la chaudière en détournant le courant des fumées vers des surchauffeurs séparés utilisés dans un cycle à surchauffe, p. ex. pour surchauffe de la vapeur entre un étage haute pression d'une turbine et un étage intermédiaire
8.
THICK-THIN COAL DUST SEPARATION AND ARRANGEMENT STRUCTURE FOR SINGLE-FIREBALL EIGHT-CORNER STRAIGHT-FLOW BURNER
A thick-thin coal dust separation and arrangement structure for a single-fireball eight-corner straight-flow burner, comprising a boiler body (1) provided with eight sets of burners (10) thereon; each water-cooled wall (9) is provided with two sets of burners (10) thereon; each set of burners (10) comprises a plurality of burners (10) with the same nozzle direction; the central lines of the nozzles on each of the eight groups of burners (10) are in the same tangential direction forming an imaginary tangential circle in the burner hearth. The eight groups of burners (10) are arranged on the four water-cooled walls (9) of the boiler, increasing the coal dust concentration in the thick coal dust area, making the heat load of the wall surface in the lower burner area higher; thus the burning temperature in the area achieves the stable combustion required for firing anthracite; the distance of a jet flow from a nozzle outlet to a downstream adjacent corner airflow is short, thus adopting a lower airflow speed of primary air coal dust; the heat flow intensity at the nozzle outlet is high, thus improving the amount of heat transfer via convection and radiation, and ensuring the timely firing of the anthracite coal dust flow and the stable combustion of the boiler in low load without oil.
F23C 5/32 - Disposition des brûleurs pour obtenir des flammes tournantes, c.-à-d. des flammes se déplaçant hélicoïdalement ou en spirale
F23C 7/06 - Amenées d'air ne traversant pas le brûleur pour le réchauffage de l'air entrant
F23L 9/02 - Passages ou ouvertures pour introduire l'air secondaire nécessaire à la combustion complète du combustible l'air étant introduit au-dessus du foyer
9.
PROCESSING METHOD FOR WELDING LUG PLATE ON CYLINDER BODY OF CENTRAL CYLINDER IN HORIZONTAL PREHEATER
A processing method for welding a lug plate on a cylinder body of a central cylinder in a horizontal preheater comprises: step 1: designing a set of process equipment, which comprises a welding guiding bracket (31), a roller support (32) and an iron frustum (33); step 2, drawing an assembly line on a lug plate (20) on the cylinder body of the central cylinder (10); step 3, after a position line of the lug plate is drawn on a working platform, placing the lug plate on the central cylinder, drying the spot; step 4, installing a welding guiding bracket on the central cylinder and hanging the same integrally on the roller support, and placing the roller support on the iron frustum, so that the two ends of the central cylinder are basically coaxial; step 5, erecting temporary fixing flat steel at the two sides of the lug plate, and erecting an arc-quenching plate; step 6, performing welding symmetrically at the two sides of the lug plate on the central cylinder; step 7, dismantling the temporary fixing flat steel, the arc-quenching plate, performing batch grinding on the welding gaps and welding craters; step 8, performing ultrasonic flaw detection examination, and when the product meets the standard, removing the roller support, and detaching the welding guiding bracket. The processing method is capable of significantly enhancing the welding quality and reducing the labor intensity of operators.
A plasma oil-free fire lighting system in an oxygen-enriched environment, comprising a plasma generator (1), a burner (2), and a sleeve assembly disposed in the burner (2); the sleeve assembly is coaxial with the burner (2); the sleeve assembly comprises a plurality of coaxially-sleeved sleeves (9, 10), an annular space (A, B, C) is formed between adjacent sleeves (9, 10) and between sleeve (10) and burner (2) respectively; oxygen conduits (3, 4) are installed on the sleeves (9, 10); and an oxygen conduit (8) is installed on the burner (2). With a simple structure, the present invention is applicable to various coals, and is suitable for low-volatile coals.
F23Q 7/02 - Allumage par incandescenceAllumage utilisant de la chaleur produite électriquement, p. ex. briquets pour cigarettesBougies incandescentes à chauffage électrique pour enflammer des combustibles solides
F23L 7/00 - Alimentation du foyer en liquides ou gaz non combustibles autres que l'air, p. ex. oxygène, vapeur d'eau
11.
DISSIMILAR STEEL COLD CRACK SUSCEPTIBILITY TEST METHOD
A dissimilar steel cold crack susceptibility test method, with reference to the Weldability Testing Method of Y-groove Cracking Test (GB4675.1-84), comprising test piece preparation, test process and evaluation; a preferable welding rod is a welding rod matching with a metal material (1) or a metal material (2), or a welding rod with the grade thereof being between the metal material (1) and a metal material (2). The test can easily and reliably test and evaluate the dissimilar steel welding cold crack susceptibility. Furthermore, the test method can provide a reliable basis for the selection of optimum welding material and preheating temperature during the welding of dissimilar steel.
B23K 31/12 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs à la recherche des propriétés, p. ex. de soudabilité, des matériaux
12.
DISSIMILAR STEEL REHEAT CRACK SUSCEPTIBILITY TEST METHOD
A dissimilar steel reheat crack susceptibility test method, with reference to the Weldability Testing Method of Y-groove Cracking Test (GB4675.1-84), comprising test piece preparation, test process and evaluation; a preferable welding rod is a welding rod matching with a metal material 1 or a metal material 2, or a welding rod with the grade thereof being between the metal material 1 and a metal material 2. The test can easily and reliably test and evaluate the dissimilar steel welding reheat crack susceptibility. Furthermore, the test method can provide a reliable basis for the selection of optimum welding material and heat treatment temperature during the welding of dissimilar steel.
B23K 31/12 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs à la recherche des propriétés, p. ex. de soudabilité, des matériaux
A welding process for processing a feeding funnel. The funnel (1) is formed by splicing left and right funnel bodies (2, 3). The funnel bodies are each formed by splicing two steel plates (21, 22; 31, 32). The steel plates are made of Q215-A materials. The splicing of the steel plates is performed by use of acetylene oxygen welding. When the welding process is used, the heat of the flame is concentrated, so that the thin steel plate can be welded through within a short period of time. On one hand, the splicing effect is achieved, and on the other hand, defect such as steel plate melting or heat deformation is avoided, and the welding seam has desirable appearance.
The invention provides a method for assembling and detecting inner parts of a super-long device. The method is used for assembling and detecting connection of more than two parts of the inner parts. The method includes the step of repeatedly adjusting superposition of four midlines of each inner part and coaxial degree of each inner part, thus exactly ascertaining the difference of middle axial line of inner parts, guaranteeing assembly precision and solving the difficult problem of assembling the inner parts in the cooling part of coal gas.
A hydraulic test apparatus for large-diameter thick-wall pipe connector and hydraulic test method thereof. When casting a large-diameter thick-wall pipe connector (2), a pipe connector boss (5) is cast in the inner diameter of the pipe connector, a blanking plate (3) is welded on the boss, and the gap between the boss and the blanking plate is seal-welded. The boss and the pipe connector are integrated, so the boss can withstand a great acting force, thereby preventing the blanking plate from flying out due to the great pressure. In this case, the welded joint serves the purpose of sealing only, and the welding height is far less than that in a traditional hydraulic test apparatus. The hydraulic test is then conducted. After the hydraulic test is completed, the boss is cut off, and the inner wall of the pipe connector at the boss is machined to the designed dimension. This ensures the safety of the hydraulic test, saves material, reduces the costs on pipe connector casting and the blanking plate welding, shortens the preparation period for the hydraulic test, and reduces production costs.
Disclosed is a gas cutting guide device, comprising a clamping positioning mechanism and a variable-speed transmission mechanism (11). The clamping positioning mechanism comprises an end cap connection guide mechanism and a cutting torch mounting positioning mechanism. The end cap connection guide mechanism comprises a magnetic block (1) and a guide block (3). The magnetic block (1) is fixedly mounted on an end surface of an end cap (13) of a tube, and a threaded core shaft (102) is disposed at a central position of an end surface of the magnetic block (1). The guide block (3) is fitted on the threaded core shaft (102) and is rotatable about the threaded core shaft (102). The variable-speed transmission mechanism (11) is mounted on the threaded core shaft (102) of the magnetic block (1). The cutting torch mounting positioning mechanism is disposed on the guide block (3), and comprises a positioning block (7) disposed on the guide block (3) and slidable along the guide block (3) up and down and a clamping block (5) connected to the positioning block (7) and rotatable about the positioning block (7). The device is capable of guiding gas cutting of end caps of tubes with different diameters, limiting the axial movement of a cutting torch in the process of gas-cutting the end caps, and improving forming of gas-cut end surfaces of the tubes, thereby having high universality and efficiency.
A dense-phase swirl pulverized coal burner comprises a primary wind channel (2), a straight-flow secondary wind channel (2), and a swirl-flow secondary wind channel (3) at the outermost side. The primary wind channel (1) comprises an elbow section serving as an inlet of pulverized coal and a straight pipe section arranged horizontally. An oil gun sleeve (4) is arranged at a central axis in the straight pipe section, and several stages of pulverized coal concentration rings (6) are arranged at intervals in an axial direction of the oil gun sleeve (4), so that the pulverized coal forms gas flow distribution with higher outer density and lower inner density at a primary wind nozzle. The pulverized coal burner has characteristics such as stable flame, strong ignitability, strong adaptability to coal types, and low emission of nitrogen oxides. Moreover, the primary wind channel has a simple structure and low resistance, and can effectively retard the rate of wear of members.
Disclosed is an arrangement structure of a boiler heating surface. In the arrangement structure of the boiler heating surface, at least two different boiler heating surfaces (1, 2) are arranged in parallel at one same flue gas temperature area (3)in an independent duct of the boiler. The arrangement structure of the boiler heating surface may fully take advantage of the heat transfer temperature difference of the boiler heating surface, improve the heat absorption efficiency of the boiler heating surface, and finally improve the heat exchange efficiency.
Disclosed in the present invention is an indexable expanding drill comprises a cutter body (2) and a guide head (1) arranged on the cutter body. The cutter body is provided with a double spiral chip-removing groove (201). The guide head is provided with two symmetrical outer blades (101) using indexable blades installed symmetrically outside the guide head. The expanding drill reduces generating eccentric distance, improves the rigidity of the cutter, and reduces vibration during cutting, thus improving cutting efficiency, ensuring automatic chip-removing- holding capacity and reducing cutter friction during cutting.
A boiler tube bundle suspension device, comprising a tube bundle (1), a pair of clamping steel plates (2), a end plate suspension device (3) and a suspension tube suspension device (4); the tube bundle (1) is connected with the clamping steel plate (2) via a pre-embedded part, the end plate suspension device (3) comprises an end plate (31) and an end plate support part (32) disposed on the end plate (31), and the suspension tube suspension device (4) comprises a suspension tube (41) and a suspension tube support part (42) disposed between the suspension tubes (41); one end of the clamping steel plate (2) is disposed on the end plate suspension device (3) and the other end is disposed on the suspension tube suspension device (4), or the two ends are both disposed on the suspension tube suspension device (4); the end plate support part (32) comprises a holding plate (321) and a support plate (322), the holding plate (321) is disposed on the end plate (31), the clamping steel plate (2) is connected with the support plate (322) and disposed on the clamping plate (321) via the support plate (322). The device can suspend the tube bundle (1) simply and conveniently, and provide a very good condition for the expansion under load of the tube bundle (1), avoiding interference with other parts and, at the same time, saving cost by eliminating spring hangers.
F22B 37/20 - Dispositifs de support, p. ex. pour la fixation des faisceaux de tubes d'eau
F24H 9/00 - APPAREILS DE CHAUFFAGE DE FLUIDES, p. ex. DE L'AIR OU DE L'EAU, COMPORTANT DES MOYENS DE PRODUCTION DE CHALEUR, p. ex. DES POMPES À CHALEUR, EN GÉNÉRAL Parties constitutives
21.
AUTOMATIC SUBMERGED ARC WELDING METHOD FOR LARGE INSERTED CONNECTING TUBE ON CONE
An automatic submerged arc welding method for a large inserted connecting tube on a cone comprises the following steps: opening a hole on a side wall of a cone (21); inserting a connecting tube (22) into the cone, and assembly-welding an annular steel pad (23) around a part outside the cone and connected to the connecting tube; elevating two ends, namely a large opening and a small opening, of the cone respectively so that the axial direction of the connecting tube is perpendicular to the ground (27); assembly-welding a beveled steel tube (24) on the inner wall of the cone and at the connecting tube; performing preheating before welding; welding to form a welded seam (28) between the cone and the connecting tube by using a saddle-shaped submerged arc welding machine (25); performing dehydrogenation treatment after the welding is completed; and removing surplus height of the welded seam on the inner wall and polishing the welded seam smooth. The method uses the saddle-shaped automatic submerged arc welding machine to weld, at the inner wall, the inserted connecting tube and the cone, so as to improve the production efficiency and reduce the influence of human factors on the welding quality, thereby avoiding the problem of difficulty in repairing, shortening the manufacturing cycle and reducing the manufacturing costs.
A welding deformation control method for a joint between a large inserted oblique tube and a cylinder comprises: Step 1: opening a hole on a side portion of a cylinder (22); Step 2: assembling a large inserted oblique tube (21) and the cylinder (22), and welding a fixing ribbed plate (23) on an outer side of a joint; Step 3: measuring the dimensions of the joint between the cylinder (22) and the large oblique tube (21), and leaving an anti-deformation margin of an angle α; Step 4: welding to form a welded seam on the lower part; Step 5: welding to form a welded seam on the middle and lower parts, and measuring an included angle β through a total station electronic tacheometer (26), the included angle β being controlled to be 180° in the welding process; Step 6: welding to form a welded seam on the middle and upper parts, and measuring the included angle β, the included angle β being controlled to be 180° in the welding process; Step 7: welding to form a welded seam on the upper part. The method uses the total station electronic tacheometer (26) and, in combination with the rigid fixing method, controls welding deformation of the joint in the process of welding the large inserted oblique tube (21) and the cylinder (22), so that the product pass rate is high, and the welding quality is effectively guaranteed. The method is simple and is highly effective in controlling welding deformation of large insertion joints.
A device for gas cutting a large non-orthogonal tube hole on a pressure vessel cylinder. The device is disposed on a boring and milling machine (9). The device comprises a hole connection jig (7) fixed on a boring rod of the boring and milling machine, a toothed tube (5) connected to the hole connection jig, a cutting nozzle (3) connected to the toothed tube and so on. A first adjusting device (4) is capable of adjusting the vertical travel of the cutting nozzle. A second adjusting device (6) is capable of adjusting the length of the hole connection jig. The device is simple and reliable, has low manufacturing costs, eliminates the need of compiling a complex processing program for the boring and milling machine, only needs to follow a circular trace, has high flame cutting speed, achieves the processing quality totally satisfying product requirements, and enables opening holes for large tubes at different angles by adjusting the angle between the cylinder and the boring rod, which is simple and convenient.
A correction method for a single tube of a row tube array (4) includes these steps: first, according to a model, a row tube array (4) one end of which is fixed, is put on a platform, next, a lower U-beam (3) is inserted below the row tube array (4), an upper U-beam (1) is positioned above the row tube array and is fixed to the lower U-beam (3) by screws (2). Then a positioning block (5) is inserted at one side of the tube to be corrected, and an L-shape fixing block (6) is provided at one side, at the ends of the two upper and lower U-beams (1). Finally, a force is exerted at one side of the L-shape fixed block (6) by a jack (7) so as to correct the single tube. These steps are repeated until all uncorrected tubes of the array (4) are corrected. The advantages of the invention are that it solves the problem of inadequate cold correction space between tubes of an array (4), and avoids the quality problems caused by hot correction. The structure of the holding device used in the invention is simple and practical, and can be used widely in similar products.
B21D 3/00 - Redressage ou remise en forme des barres, tubes ou profilés métalliques, ou des objets déterminés faits à partir de ces matériaux, qu'ils comportent ou non des parties en tôle
25.
A DRIVING PIN RACK JOINT DEVICE FOR A ROTARY HEAT EXCHANGER
A driving pin rack joint device for a rotary heat exchanger, which includes a rotor shell plate (3), pin shafts (4) and pin rack flat steels (5), is provided. The pin rack is composed of the pin shafts (4) and the pin rack flat steels (5), and is disposed outside the rotor shell plate (3). Two pins whose two ends perforate the pin rack flat steels (5) are placed at the ends of the pin rack segments, and link joints (6) each with two holes are separately disposed on the two pins placed at the ends of the pin rack segments. The joint means for the pin rack segments eliminates drawbacks of the welded joint, improves the installation rate andthe installation accuracy, makes the equipment operating at a smooth, little vibration and lightened noise condition, and increases the operating life of the driving device.
F28F 9/26 - Dispositions pour raccorder des sections différentes des éléments d'échangeurs de chaleur, p. ex. de radiateur
F28D 19/04 - Appareils échangeurs de chaleur de régénération dans lesquels l'agent ou la masse intermédiaire de transfert de chaleur est amené successivement en contact avec chacune des sources de potentiel calorifique utilisant des masses rigides, p. ex. montées sur un support mobile
F16G 3/16 - Dispositifs ou machines pour assembler les courroies de transmissions ou des dispositifs similaires
26.
A BURNER ONLY FOR BURNING BLAST FURNACE GAS OR LOW CALORIFIC GAS
A burner only for burning blast furnace gas or low calorific gas is characterized in that the burner consists of a gas pipe (1), an air pipe (2), gas vanes (3), air vanes (4), a convergent-divergent diffuser (5), a gas igniter (6) and a high energy igniter (7). The nozzle of the air pipe (2) is connected with the convergent-divergent diffuser (5). The gas pipe (1) is set in the air pipe (2) which is coaxial with the gas pipe (1). The gas igniter (6) and the high energy igniter (7) are set in a central pipe (8) of the gas pipe (1). At the nozzles of the gas pipe (1) and the air pipe (2), the axial or tangential gas vanes (3) are uniformly setbetween the gas pipe (1) and the central pipe (8). The axial or tangential air vanes (4) are uniformly set between the gas pipe (1) and the air pipe (2). The combustion method of the burner is characterized in that one-to-one correspondent burners are arranged on the front and the rear walls of the boiler furnace, and the front and rear wall opposed firing technology is adopted.
F23D 14/20 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion
brevets
