A system for generating energy in a working fluid from hydrogen and oxygen, comprises a burner (12) for combustion of hydrogen and oxygen into steam provided with a feed (14) for oxygen and a feed (16) for hydrogen, a boiler (22) operably connected to the burner for heating the working fluid having a feed (24) for introducing the working fluid and a discharge (26) for discharging heated working fluid and a heat exchanging surface (25) for heat exchange between the steam and the working fluid, a condenser (30) for condensing steam operably connected to the boiler downstream thereof, wherein a recirculation loop (32; 55; 57) is provided for recirculation of reaction products of the combustion of hydrogen and oxygen downstream of the condenser to the burner, and a recovery loop (38) for recycling oxygen separated in the separator from the separator to the feed of oxygen of the burner.
F01K 17/02 - Use of steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
F22B 1/08 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being steam
F22B 1/00 - Methods of steam generation characterised by form of heating method
The present invention relates to a steam boiler assembly (1), configured to heat water in order to generate steam, comprising at least one boiler (20, 30), a fuel heater (23), an electric heater (35, 36), a feed water inlet (11), a steam outlet (12), and a controller (50), wherein the controller (50) is configured to selectively activate or deactivate the fuel heater (23) and/or the electric heater (35, 36) to bring and keep the water in the at least one boiler (20, 30) at saturated conditions. The steam boiler assembly (1) further comprises a water-tube boiler (20), which comprises the fuel heater (23), an electrode boiler (30), which comprises the electric heater (35, 36), and a steam drum (10), which is configured to hold water and steam, wherein the feed water inlet (11) and the steam outlet (12) are fluidly connected to the steam drum (10). The water-tube boiler (20) and the electrode boiler (30) each comprise an inlet (21, 31) and an outlet (22, 32), which are fluidly connected to the steam drum (10). The inlet (21) of the water-tube boiler (20) is fluidly connected to the inlet (31) of the electrode boiler (30) and the interconnected inlets (21, 31) are configured to allow a flow of water from an activated one of the boilers (20, 30) to a deactivated one of the boilers (30, 20) in order to keep the water in the deactivated boiler at saturated conditions.
F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
A heat recovery unit for generating a heated fluid by a hot exhaust gas includes a housing having an inlet for introducing hot exhaust gas and an outlet for discharging treated exhaust gas, and arranged in the housing at least one heat exchanger for heat exchange between the hot exhaust gas and a fluid, and an auxiliary combustor for combusting fuel with hot exhaust gas. The auxiliary combustor is provided with a fuel supply, which auxiliary combustor is arranged downstream of the at least one heat exchanger in the housing. An exhaust gas bypass for a part of the hot exhaust gas is provided, having an inlet for exhaust gas, and being positioned upstream of the at least one heat exchanger, and having an outlet in direct fluid communication with the auxiliary combustor.
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
F22B 31/04 - Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
F01K 3/24 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters
F22G 1/16 - Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
F22B 21/00 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
F22B 37/40 - Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles
F01D 15/10 - Adaptations for driving, or combinations with, electric generators
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 3/04 - Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
The invention relates to a boiler or furnace (10) for combustion of fuel in an air staged combustion mode, comprising an enclosure (12) having walls (16) defining a combustion chamber (14), of which walls (16) at least a part is provided with heat exchanging tubes (18) for generating a heated fluid, at least one burner (22) for combustion of fuel positioned in one (20) of the walls (16) and provided with a fuel supply (26) and a primary air supply (24), and a secondary air supply (32), and an outlet (28) for discharge of flue gas, wherein the secondary air supply (32) is a manifold system comprising an inlet (38; 54) through the wall (20), in fluid communication with a distribution channels (46) positioned internally of the enclosure (12) and the heat exchanging tubes (18) downstream of the at least one burner (22) in a secondary combustion zone.
F23L 9/04 - Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air beyond the fire, i.e. nearer the smoke outlet
The invention relates to a heat recovery unit (10) for generating a heated fluid by a hot exhaust gas, comprising: a housing (12) having an inlet (14) for introducing hot exhaust gas and an outlet (18) for discharging treated exhaust gas, and arranged in said housing (12) at least one heat exchanger (20) for heat exchange between the hot exhaust gas and a fluid, and an auxiliary combustor (22) for combusting fuel with hot exhaust gas, the auxiliary combustor (22) being provided with a fuel supply (24; 82), which auxiliary combustor (22) is arranged downstream of the at least one heat exchanger (20) in said housing, wherein an exhaust gas bypass (26; 27) for a part of the hot exhaust gas is provided, having an inlet (108) for exhaust gas, and being positioned upstream of the at least one heat exchanger (20), and having an outlet (113) in direct fluid communication with the auxiliary combustor (22).
F01K 3/24 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters
F22B 21/00 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
F22B 31/04 - Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
F22B 37/40 - Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles
F22G 1/16 - Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
The invention relates to a heat recovery unit (10) for generating a heated fluid by a hot exhaust gas, comprising: a housing (12) having an inlet (14) for introducing hot exhaust gas and an outlet (18) for discharging treated exhaust gas, and arranged in said housing (12) at least one heat exchanger (20) for heat exchange between the hot exhaust gas and a fluid, and an auxiliary combustor (22) for combusting fuel with hot exhaust gas, the auxiliary combustor (22) being provided with a fuel supply (24; 82), which auxiliary combustor (22) is arranged downstream of the at least one heat exchanger (20) in said housing, wherein an exhaust gas bypass (26; 27) for a part of the hot exhaust gas is provided, having an inlet (108) for exhaust gas, and being positioned upstream of the at least one heat exchanger (20), and having an outlet (113) in direct fluid communication with the auxiliary combustor (22).
F22B 21/00 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
F22B 31/04 - Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
F22B 37/40 - Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles
F22G 1/16 - Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
F01K 3/24 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters
The invention relates to a device for treating water of the spray type, such as a deaerator or preheater. According to the invention the connection between the vessel (12) and the sprayer (34) and the supply of water to be treated comprises a pipe section (40) having a first open end in fluid communication with a treatment chamber and a second open end provided with a first flange (60) for connecting to a sprayer (34), the sprayer (34) comprising a sprayer flange (68) connected to said first flange (60), the sprayer flange (68) carrying the sprayer (34), which is in fluid communication with a connecting pipe (72) at one end thereof, the connecting pipe (72) extending through the first flange (60) to a coupling flange (74) for connection to the supply of water to be treated.
With a method and burner (10) for staged combustion of a fuel in gaseous form, three distinct streams of, respectively, a premixed mixture of fuel and combustion air, pure combustion air and pure fuel are introduced into a combustion space (16) at different radial positions (70; 80; 90), viewed from the axis of the burner. As a result thereof, several combustion zones (O; C; D) and mixing zones (A; B; C) can be distinguished in the combustion space (16). The combustion conditions in these zones are such that in each case such a substoichiometric amount of either fuel or oxygen is present locally or such a dilution of the combustion gases with flue gases is present that combustion takes place at low temperature and thus the emission of harmful nitrogen oxides is limited.
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