Combined-cycle plant based on heat transformer with injection of steam into gas path

FIELD: energy.

SUBSTANCE: invention relates to power engineering and is aimed at improving combined-cycle plants in combination with injection of steam into a gas path. Combined-cycle gas plant is equipped with absorption lithium bromide heat transformer at fire heating, steam turbine connected to a steam waste heat recovery boiler, air condenser made in the form of a cooling tower, surface heat exchanger-condenser.

EFFECT: invention provides higher reliability and efficiency of a combined-cycle plant.

1 cl, 1 dwg

 



 

Same patents:

FIELD: power industry.

SUBSTANCE: steam-gas unit on the basis of nuclear power plant (NPP) is fitted with the gas-steam heat exchanger connected by the heating side to the path of exhaust gases from the gas turbine, and by the heated side - to the steam line between cylinders of the steam turbine parallel to the second step of the steam-steam superheater, by the starting standby boiler room located downstream the gas-water heater and connected at the inlet by the heating side with the exhaust gas pipeline, and downstream - with the pre-heater of chemically cleaned water, on the heated side upstream - with the heater of chemically cleaned water, downstream - with the satellite turbine. The satellite turbine upstream is connected to the starting standby boiler room, and downstream - to the satellite turbine condenser. The unit of preparation of foreign steam comprising the steam electrolyser unit, oxygen storage, hydrogen storage, an oxygen compressing unit, a hydrogen compressing unit, a hydrogen and oxygen steam generator connected upstream with the steam withdrawal from the high pressure cylinder of the steam turbine, and downstream - with the pipeline of steam withdrawal from the high pressure cylinder of the steam turbine on the first step of the intermediate steam overheat and on the steam mixer which upstream is connected to the starting standby boiler room and the unit of preparation of foreign steam, and downstream - with the satellite turbine and the steam line substituting the steam withdrawal from the steam turbine, the heater of chemically cleaned water connected upstream by the heating side to the exhaust gas pipeline located downstream the starting standby boiler room, and downstream - with the chimney, and by the heated side upstream - with the pipeline of chemically cleaned water, downstream - from the starting standby boiler room.

EFFECT: increase of capacity and manoeuvrability of steam-gas unit.

1 dwg

FIELD: power industry.

SUBSTANCE: thermodissociating hydrogen and oxygen generator contains a steam generator, a rotating steam collector with holes for steam release, plasmochemical reactors for thermal dissociation of water vapour and obtaining of hydrogen and oxygen which are connected to the power supply and which are interconnected from one side with holes in the steam collector and from another side - with expanding nozzles and cylinders of wave compressors. The plasmochemical reactors either consist of a housing in which a cathode electrode is installed and which has a jacket interconnected with a cooled anode nozzle, and the front surface of the housing is implemented as a disk with holes for steam supply, or plasmochemical reactors are implemented as a block of reactor housings which are interconnected with the block of cooled anode nozzles, the housings contain cathode electrodes, on the block of plasmochemical reactors the valve mechanism for steam intake is located. Plasmochemical reactors, expanding nozzles and cylinders of wave compressors have jackets for cooling liquid circulation.

EFFECT: decrease of cost of finished goods.

6 dwg

FIELD: transport.

SUBSTANCE: invention relates to navy exploiting high-navigability and high-speed vessels with power plants running on hydrogen fuel and the product of thermal dissociation of steam, that is, hydrogen and oxygen. Note here that sweet water stored in tanks is used as a heat carrier. This vessel comprises surface hull mounted at streamlined supports of underwater hulls, starting steam plant arranged in surface hull, sweet water tanks, main power plants with steam condensers to use sweet water as power carrier to produce useful power. Said power plants include gas turbine plant and steam plant engaged by shaft with electrical generator connected in electrical protection hardware. Steam units running of used hydrogen and oxygen of thermal dissociation gas turbines are connected via steam lines with steam collectors and plasma chemical heaters of said main power plants and refrigerators for cooling of said used hydrogen and oxygen. Steam units are connected to cooling system running on liquid metal heat carrier of the main power plants connected to steam turbines connected to electrical generators connected to switchboards and to capacitors. Plasma chemical heaters and reactors with their power supplies, motors connected with screw propellers are arranged in underwater hulls. It differs from known designs in that thermal dissociation gas turbine to produce useful power, hydrogen and oxygen incorporates plasma chemical heaters arranged regularly in circle to heat steam to temperature over 2000C.Said plasma chemical heaters are connected to power supply and connected, on one side, via valve gear with high-temperature and high-pressure steam collector and, on opposite side, with reactors for thermal dissociation of steam to produce hydrogen and oxygen their temperature exceeding 2500C. Threes are connected to power supply including HF generators and capacitor bank connected with diverging nozzles and cylinders of wave compressors. The latter incorporate water or liquid metal injectors connected to gas turbine fitted on the shaft engaged with electrical generator. Said turbine is provided with discharge pipe to force used hydrogen and oxygen into steam unit. Or, thermal dissociation gas turbine incorporates plasma chemical reactors for thermal dissociation of steam and production of hydrogen and oxygen with temperature over 2500C and high pressure. Said reactors are connected via valves gears with high-pressure and high-temperature steam collectors on one side and, on the other side, with cylinders connected to aforesaid diverging nozzle and cylinders of wave compressors provided with water or liquid metal injectors connected with gas turbine. Said turbine is provided with discharge pipe to force used hydrogen and oxygen into steam unit. Also, it differs in that plasma chemical heaters, plasma chemical reactors for thermal dissociation of steam and production of hydrogen and oxygen with temperature over 2500C, or plasma chemical reactors, diverging nozzles and wave compressor cylinders are provided with jackets for circulation of aforesaid coolants for cooling reactors for thermal dissociation of steam and production of hydrogen and oxygen with temperature over 2500C and high pressure. Also, it differs in that plasma chemical heaters or reactors incorporate housing with jacket, cover and cap and electrode-cathode secured in housing, in electric insulation ply. Said cathode communicates with cooled nozzle, the anode, arranged at the angle to axes of said reactors. Or, plasma chemical heaters or reactors are arranged in one unit with light ionising additive injectors built therein and arranged in the axis of reactors. Note here that valve mechanism with high-pressure-and-temperature inlet valve is arranged at plasma chemical heater housing. Also, it differs in that valve mechanism comprises steam feed pipe and discharge valve with constrictor and spring. The latter is composed of tubular slider plugged on one side and fitted in cylinder secured at the housing. Said cylinder has openings in it and inlet valve tubular slider walls to intake steam in plasma chemical heater or reactor. Its differs in that said reactor is made of ceramic material with circular inductor arranged thereon and composed of copper pipes with jacket for circulation and cooling of reactor walls and inductor by water. Also, it differs in that steam plat for combustion of hydrogen and oxygen incorporates axial compressor connected with long pipes, combustion chambers arranged regularly in circle. They include injectors to ignite hydrogen in oxygen by injection of gaseous jets of conducting fluid thermal dissociation products with diverging nozzles and wave compressor cylinders connected to steam turbine. The latter is fitted on shaft engaged with electrical generator and incorporates branch pipe to discharge used steam into condenser. Besides, it differs in that said injector comprises casing with conducting liquid feed pipes. Said pipes are connected to cylindrical channels arranged inside the casing in insulating material ply. Electrodes connected to pulse generator are arranged on one side of said channels while, on opposite side, nozzle are arranged directed at the angle to each other and communicated with blast chamber of injector that has perforated bottom for escape of gas jets.

EFFECT: clean atmosphere.

8 dwg

Jet hovercraft // 2537663

FIELD: transport.

SUBSTANCE: for operation of installations fresh water stored in reservoirs is used which water is energy carrier. Jet hovercraft includes hull, hull guard, reservoirs for fresh water located in the hull, centrifugal fans to discharge compressed air under hull bottom and create air cushion and gas-steam turbine plants for centrifugal fans operation, jet gas-steam turbine plants placed on deck for vessel movement which plants use water as energy carrier and produce effective power and traction force, installed in vessel hull steam generator working on exhaust hydrogen and oxygen with temperature of 500-550C and connected by main steampipe with steam header of jet gas-steam turbine plant and refrigerator for cooling exhaust hydrogen and oxygen from steam generator which header is connected to accumulating reservoir and distribution device, steam generator connected to cooling system of jet gas-steam turbine plant working on liquid-metal coolant, connected with steam turbine and with main steampipe, connected to electric generator switched to electric board and to condenser, jet gas-steam turbine plant plasmochemical reactor power supply unit connected to electric board. The jet gas-steam turbine plant includes housing with diffuser for atmospheric air intake with starting motor installed in its cowling, jet nozzle for traction force creation accommodating cone and injectors to inject hydrogen or hydrocarbon fuel to force plant and increase traction force, and two power units installed in the hull and containing thermodissociating gas turbine plant and steam turbine plant connected by shaft from one side with electric generator switched to electric board and from the other side - with high-pressure fan for creation of air movement in ring-shaped channel between the hull and power units and centrifugal compressor connected to combustion chambers equally spaced along circumference for combustion of dissociation products - hydrogen and oxygen - and creation of traction force. The thermodissociating gas turbine plant for producing energy source - hydrogen and oxygen - and useful power is performed with plasmochemical reactors equally spaced along circumference for thermal dissociation of water steam and obtaining hydrogen and oxygen with temperature exceeding 2500C and with high pressure, connected to power supply, communicating at one end by means of disk-valve with holes for steam intake and ring-shaped labyrinth seals, rotating at specified frequency, with steam header, and at the other end are connected with expanding nozzles and cylinders of wave compressors having injectors for water or liquid metal injection in them connected to gas turbine mounted on shaft connected with electric generator which turbine is provided with outlet pipe to discharge exhaust hydrogen and oxygen into steam generator. The plasmochemical reactors for thermal dissociation of water steam and producing hydrogen and oxygen with temperature exceeding 2500C, expanding nozzles and cylinders of wave compressors have jackets for cooling liquid circulation - liquid metal cooler and water - for cooling nozzle walls - anodes of plasmochemical reactors. The plasmochemical reactors contain housing with jacket which housing communicates with cooled nozzle - anode, with located in housing at specified distance from its walls electrode-cathode mounted in device being connected to power supply, with located in housing injector for injection of easily-ionising additive, or several plasmochemical reactors with located in housing injector for injection of easily-ionising additive are located in one unit connected with expanding nozzles of wave compressors at one end, and at the other end communicate with disk-valve having holes for steam intake and ring-shaped labyrinth seals, or several plasmochemical reactors located in one unit contain housings with jacket, cover and dome, with electrodes-cathodes mounted in housings at specified distance from their walls in electric insulation layer, which housings communicate with cooled nozzles-anodes. On the unit of plasmochemical reactors, valve mechanism with inlet valve water steam intake. Valve mechanism includes fitting pipe for steam intake which fitting is connected with header attached to housings of plasmochemical reactors, with inlet valve located on header, with limiter and spring for water stem intake. Steam turbine plat for hydrogen combustion in oxygen and obtaining useful power is made with axial compressor connected to distributing device, which compressor is connected in series with connecting cylinders, combustion chambers equally spaced along circumference including injectors for hydrogen ignition in oxygen due to injection of gaseous jets of electroconducting liquid thermal dissociation products and hybrid injectors for injection of gaseous mixture of electroconducting liquid and hydrocarbon fuel thermal dissociation products, with expanding nozzles and cylinders of wave compressors, connected to steam turbine mounted on shaft connected with thermodissociating gas turbine plant and electric generator, which turbine is provided with outlet fitting pipe to discharge exhaust steam into condenser. Axial compressor is made with two housings, with inlet chamber with atmospheric air intake shutter gimbal-mounted on it. The second housing is equipped with inlet fitting pipe for intake of dissociation products - hydrogen and oxygen - from distributing device. Injector for hydrogen ignition in oxygen contains housing with fitting pipes for electroconducting liquid infeed which pipes are connected with cylindrical channels located inside housing in electric insulating material layer. On one end of these pipes, electrodes connected to pulse oscillator are installed, and on the other end nozzles are made which are directed at an angle to each other and communicating with injector explosion chamber having bottom with outlet holes for gas jets. The hybrid injectors contain housing with fitting pipes for electroconducting liquid infeed which pipes are connected with cylindrical channels located inside housing in electric insulating material layer in parallel with fuel injector location. On one end of these pipes, electrodes connected to pulse oscillator are installed, and on the other end nozzles are made which are directed at an angle to each other and communicating with injector explosion chamber having outlet nozzle for gas jets.

EFFECT: higher travel speed.

18 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to power engineering. In the method of operation of combined power station comprising the gas turbine and the steam turbine, respectively by means of connected electric generator AC voltage of the relevant frequency is generated and supplied to the AC mains, and the off-gas of the gas turbine is used for generation of steam for the steam turbine. At the first stage the internal consumers are supplied in independent mode by means of gas turbine, and its regime point is selected so that the steam minimum temperature for the steam turbine is achieved, at the second stage in independent mode the steam turbine is synchronized and is started up to the working point, at which the maximum increase of the load can be achieved, and the resulting change of the load of the steam turbine is compensated by the gas turbine, at the third stage the loads of consumers are connected, at the fourth stage increase of the requested load completely or partially, and also continuously or temporarily is provided by the steam turbine, at the fifth stage the load of the steam turbine is gradually decreased for increase of its ability to stand the load increase. The stages from third up to fifth are reproduced until the base load of combined power station will be achieved.

EFFECT: invention allows to provide reliable and flexible recovery of the mains at emergency start.

10 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: single-cylinder extraction turbine for a combined-cycle plant with a loop circuit of steam flow in a cylinder, high-pressure steam supply, low-pressure steam supply and two controlled heating steam extractions. Low-pressure steam is supplied with the pressure increased to the pressure of production steam extraction to a chamber of the inter-housing space. After the flow is turned through 180, to the same chamber there supplied is the steam that passed the stages of the high- pressure part, which are located in the inner housing. Therefore, the loop circuit of steam flow in the cylinder, supply and production steam extraction from the chamber of the inter-housing space of the single-cylinder turbine is arranged for a combined-cycle plant rated at 60 to 120 MW.

EFFECT: providing strength reliability of a design, compactness and improving manoeuvrability of a turbine.

2 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: electric power station includes the building of electric power station, power plant, generator of electric current, heat control panel, step-up substation; at that, power plant is made in the form of several similar units, and each unit represents hollow toroid vertically installed and having a valve inside inner part, and in lower part it is connected to inlet and outlet cavities of bladed motor; rotors of all bladed motors are fixed on common shaft; in middle part of each toroid there is water-tube heater on one side, the furnace of which is connected to pump unit including air heater, atomiser, liquid fuel supply pump, igniting device, drive electric motor; on the other side, each toroid has water-tube cooler connected to cooling system containing compressor, cooling radiator, drying filter, capillary nozzle opening inside the housing-evaporator, which are attached to each other by means of pipelines, heat regulator, drive electric motor, cooling system is filled with freon, inner cavity of each toroid is filled with low-boiling liquid which is operating body of power plant, control mechanisms of which are connected to control system of fuel and air supply of water-tube heater and control system of cooling degree of water-tube cooler.

EFFECT: invention allows saving fuel, cheapening the construction and improving environmental situation.

1 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to power plants of mobile machines with steam-force or combined engine. Power plant of mobile machine comprises steam engine and steam generating device, with supply of burned fuel heat in it. Steam generating device also comprises electric heaters communicated to electric generating braking device of mobile machine that accumulates energy of mobile machine braking in the form of heat. Version is also possible for combined operation of steam machine with internal combustion engine.

EFFECT: provision of fuel efficiency and lower toxicity of mobile machine exhaust.

10 cl, 2 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to power engineering and can be used at thermal power stations. The said combined cycle gas turbine unit for an electrical power plant contains a gas turbine installation, which consists of a gas turbine, turbo compressor, combustion chamber and an electric generator, exhaust heat boiler, steam turbine installation, consisting of a steam turbine with a condenser, electric generator and a feed pump, exhaust gas waste heat exchanger, equipped with a condensate collector with a hydraulic lock, water treatment system, containing a decabonator, circulation water supply system, comprising a circulating pump, pressure pipe to the steam turbine condenser, pressure pipe to the exhaust gas waste heat exchanger and an exhaust pressure pipe to a cooler, consisting of a stack and storage basin, a pipe, joining the air outlet pipe from the decabonator with the sucking duct of the turbo compressor.

EFFECT: invention increases cost effectiveness and specific power of combined cycle gas turbine unit for an electrical power plant by reducing compression work in the turbo compressor and increasing heat drop in the gas turbine due to improvement of thermal-physical properties of the working medium in the turbo compressor and in the gas turbine.

1 cl, 1 dwg

FIELD: power production industry.

SUBSTANCE: multi-pipe heat and power plant consists of a housing with evaporating chamber being located upstream of steam. The evaporation chamber is comprised of vertical evaporating tubes with their inner surface being partially covered with porous material (tinder) bands. The above mentioned bands form grooves between each other. There is separation section in the chamber where front and rear distribution headers are located and provided with injectors. In addition, the separation section is isolated at the bottom by means of dumb partition covered with tinder with separating element. Working chamber is filled with the other type of tinder. Shaft crosses side walls of the working chamber and tinder layers. The power turbine wheel is placed inside the turbine and mounted of the abovementioned shaft. The power turbine wheel is connected with the evaporating chamber through the steam nozzle and with condensation chamber through the secondary steam nozzle. The condensation chamber consists of distribution section and condensation pipes with their bottom being connected with working chamber tinder by means of axial tinder. In addition, front and rear feed pumps are installed on the outer side walls surfaces of the working chamber. The above mentioned front and rear feed pumps connected to the front and rear tanks filled with working liquid. There is a shaft across central axis of tanks, which has feed pump rotors mounted on it. The feed pump rotors are connected with front and rear evaporating chamber headers through the pressure pipelines, while the shaft is connected with the electric generator.

EFFECT: improved effectiveness of heat and power plant.

1 cl, 5 dwg

Two-stage engine // 2244841

FIELD: mechanical engineering.

SUBSTANCE: invention relates to combination of internal combustion engine and steam machine. Proposed two-stage engine contains cylinder-piston group, crankcase with crankshaft, fuel supply system and cooling system. Cylinder block cooling jacket is made in form of steam boiler connected to additional cylinder-piston group connected with initial crankshaft. Condensing of steam is provided by pairs of plates installed with clearance at outlet of additional cylinder-piston group over perimeter of which grooves with holes are made for collecting condensate.

EFFECT: reduced overall dimensions of steam condenser.

2 dwg

FIELD: agricultural; medicine.

SUBSTANCE: proposed plant includes steam-water circuit of steam boiler with furnace, steam turbine, water velour condenser, condensate collector with throttle valve, electric generator with current converter and electric accumulator. Proposed plant contains solar cell panels with antifreeze tank-collector and liquid pump and built-in heat exchanger installed in steam boiler. Steam-water circuit of plant is furnished with mechanical vacuum pump and is made sealed. Steam turbine is essentially rotative-action gas expansion machine with two-8-shaped rotors rotating towards each other.

EFFECT: provision of compact self-contained power generating plant capable of operating at low potential of heating media.

1 dwg

FIELD: power engineering.

SUBSTANCE: invention can be used in stationary power plants and in transport. Proposed power plant on fuel elements contains methane partial oxidation reformer, alkaline electrochemical generator with unit to clean air from carbon dioxide and fuel gas afterburner includes additionally series-connect unit to clean methane from carbon dioxide, drying unit, proportioner and gas mixer connected to unit for cleaning air from carbon dioxide whose output communicates with input of methane partial oxidation reformed whose outputs is connected with input of alkaline electrochemical generator through unit for cleaning gases from carbon dioxide, fuel gas afterburner being connected to output of electrochemical generator along fuel line. Natural gas is cleaned from carbon dioxide before reforming.

EFFECT: provision of power plant of alkaline fuel elements capable of effectively operating on methane, reduced total maximum level of operating pressures and temperatures of power plants, reduced amount of platinum and palladium, reduced sluggishness of power plants.

3 cl, 1 dwg

FIELD: power production industry.

SUBSTANCE: multi-pipe heat and power plant consists of a housing with evaporating chamber being located upstream of steam. The evaporation chamber is comprised of vertical evaporating tubes with their inner surface being partially covered with porous material (tinder) bands. The above mentioned bands form grooves between each other. There is separation section in the chamber where front and rear distribution headers are located and provided with injectors. In addition, the separation section is isolated at the bottom by means of dumb partition covered with tinder with separating element. Working chamber is filled with the other type of tinder. Shaft crosses side walls of the working chamber and tinder layers. The power turbine wheel is placed inside the turbine and mounted of the abovementioned shaft. The power turbine wheel is connected with the evaporating chamber through the steam nozzle and with condensation chamber through the secondary steam nozzle. The condensation chamber consists of distribution section and condensation pipes with their bottom being connected with working chamber tinder by means of axial tinder. In addition, front and rear feed pumps are installed on the outer side walls surfaces of the working chamber. The above mentioned front and rear feed pumps connected to the front and rear tanks filled with working liquid. There is a shaft across central axis of tanks, which has feed pump rotors mounted on it. The feed pump rotors are connected with front and rear evaporating chamber headers through the pressure pipelines, while the shaft is connected with the electric generator.

EFFECT: improved effectiveness of heat and power plant.

1 cl, 5 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to power engineering and can be used at thermal power stations. The said combined cycle gas turbine unit for an electrical power plant contains a gas turbine installation, which consists of a gas turbine, turbo compressor, combustion chamber and an electric generator, exhaust heat boiler, steam turbine installation, consisting of a steam turbine with a condenser, electric generator and a feed pump, exhaust gas waste heat exchanger, equipped with a condensate collector with a hydraulic lock, water treatment system, containing a decabonator, circulation water supply system, comprising a circulating pump, pressure pipe to the steam turbine condenser, pressure pipe to the exhaust gas waste heat exchanger and an exhaust pressure pipe to a cooler, consisting of a stack and storage basin, a pipe, joining the air outlet pipe from the decabonator with the sucking duct of the turbo compressor.

EFFECT: invention increases cost effectiveness and specific power of combined cycle gas turbine unit for an electrical power plant by reducing compression work in the turbo compressor and increasing heat drop in the gas turbine due to improvement of thermal-physical properties of the working medium in the turbo compressor and in the gas turbine.

1 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to power plants of mobile machines with steam-force or combined engine. Power plant of mobile machine comprises steam engine and steam generating device, with supply of burned fuel heat in it. Steam generating device also comprises electric heaters communicated to electric generating braking device of mobile machine that accumulates energy of mobile machine braking in the form of heat. Version is also possible for combined operation of steam machine with internal combustion engine.

EFFECT: provision of fuel efficiency and lower toxicity of mobile machine exhaust.

10 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: electric power station includes the building of electric power station, power plant, generator of electric current, heat control panel, step-up substation; at that, power plant is made in the form of several similar units, and each unit represents hollow toroid vertically installed and having a valve inside inner part, and in lower part it is connected to inlet and outlet cavities of bladed motor; rotors of all bladed motors are fixed on common shaft; in middle part of each toroid there is water-tube heater on one side, the furnace of which is connected to pump unit including air heater, atomiser, liquid fuel supply pump, igniting device, drive electric motor; on the other side, each toroid has water-tube cooler connected to cooling system containing compressor, cooling radiator, drying filter, capillary nozzle opening inside the housing-evaporator, which are attached to each other by means of pipelines, heat regulator, drive electric motor, cooling system is filled with freon, inner cavity of each toroid is filled with low-boiling liquid which is operating body of power plant, control mechanisms of which are connected to control system of fuel and air supply of water-tube heater and control system of cooling degree of water-tube cooler.

EFFECT: invention allows saving fuel, cheapening the construction and improving environmental situation.

1 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: single-cylinder extraction turbine for a combined-cycle plant with a loop circuit of steam flow in a cylinder, high-pressure steam supply, low-pressure steam supply and two controlled heating steam extractions. Low-pressure steam is supplied with the pressure increased to the pressure of production steam extraction to a chamber of the inter-housing space. After the flow is turned through 180, to the same chamber there supplied is the steam that passed the stages of the high- pressure part, which are located in the inner housing. Therefore, the loop circuit of steam flow in the cylinder, supply and production steam extraction from the chamber of the inter-housing space of the single-cylinder turbine is arranged for a combined-cycle plant rated at 60 to 120 MW.

EFFECT: providing strength reliability of a design, compactness and improving manoeuvrability of a turbine.

2 cl, 1 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to power engineering. In the method of operation of combined power station comprising the gas turbine and the steam turbine, respectively by means of connected electric generator AC voltage of the relevant frequency is generated and supplied to the AC mains, and the off-gas of the gas turbine is used for generation of steam for the steam turbine. At the first stage the internal consumers are supplied in independent mode by means of gas turbine, and its regime point is selected so that the steam minimum temperature for the steam turbine is achieved, at the second stage in independent mode the steam turbine is synchronized and is started up to the working point, at which the maximum increase of the load can be achieved, and the resulting change of the load of the steam turbine is compensated by the gas turbine, at the third stage the loads of consumers are connected, at the fourth stage increase of the requested load completely or partially, and also continuously or temporarily is provided by the steam turbine, at the fifth stage the load of the steam turbine is gradually decreased for increase of its ability to stand the load increase. The stages from third up to fifth are reproduced until the base load of combined power station will be achieved.

EFFECT: invention allows to provide reliable and flexible recovery of the mains at emergency start.

10 cl, 5 dwg

Jet hovercraft // 2537663

FIELD: transport.

SUBSTANCE: for operation of installations fresh water stored in reservoirs is used which water is energy carrier. Jet hovercraft includes hull, hull guard, reservoirs for fresh water located in the hull, centrifugal fans to discharge compressed air under hull bottom and create air cushion and gas-steam turbine plants for centrifugal fans operation, jet gas-steam turbine plants placed on deck for vessel movement which plants use water as energy carrier and produce effective power and traction force, installed in vessel hull steam generator working on exhaust hydrogen and oxygen with temperature of 500-550C and connected by main steampipe with steam header of jet gas-steam turbine plant and refrigerator for cooling exhaust hydrogen and oxygen from steam generator which header is connected to accumulating reservoir and distribution device, steam generator connected to cooling system of jet gas-steam turbine plant working on liquid-metal coolant, connected with steam turbine and with main steampipe, connected to electric generator switched to electric board and to condenser, jet gas-steam turbine plant plasmochemical reactor power supply unit connected to electric board. The jet gas-steam turbine plant includes housing with diffuser for atmospheric air intake with starting motor installed in its cowling, jet nozzle for traction force creation accommodating cone and injectors to inject hydrogen or hydrocarbon fuel to force plant and increase traction force, and two power units installed in the hull and containing thermodissociating gas turbine plant and steam turbine plant connected by shaft from one side with electric generator switched to electric board and from the other side - with high-pressure fan for creation of air movement in ring-shaped channel between the hull and power units and centrifugal compressor connected to combustion chambers equally spaced along circumference for combustion of dissociation products - hydrogen and oxygen - and creation of traction force. The thermodissociating gas turbine plant for producing energy source - hydrogen and oxygen - and useful power is performed with plasmochemical reactors equally spaced along circumference for thermal dissociation of water steam and obtaining hydrogen and oxygen with temperature exceeding 2500C and with high pressure, connected to power supply, communicating at one end by means of disk-valve with holes for steam intake and ring-shaped labyrinth seals, rotating at specified frequency, with steam header, and at the other end are connected with expanding nozzles and cylinders of wave compressors having injectors for water or liquid metal injection in them connected to gas turbine mounted on shaft connected with electric generator which turbine is provided with outlet pipe to discharge exhaust hydrogen and oxygen into steam generator. The plasmochemical reactors for thermal dissociation of water steam and producing hydrogen and oxygen with temperature exceeding 2500C, expanding nozzles and cylinders of wave compressors have jackets for cooling liquid circulation - liquid metal cooler and water - for cooling nozzle walls - anodes of plasmochemical reactors. The plasmochemical reactors contain housing with jacket which housing communicates with cooled nozzle - anode, with located in housing at specified distance from its walls electrode-cathode mounted in device being connected to power supply, with located in housing injector for injection of easily-ionising additive, or several plasmochemical reactors with located in housing injector for injection of easily-ionising additive are located in one unit connected with expanding nozzles of wave compressors at one end, and at the other end communicate with disk-valve having holes for steam intake and ring-shaped labyrinth seals, or several plasmochemical reactors located in one unit contain housings with jacket, cover and dome, with electrodes-cathodes mounted in housings at specified distance from their walls in electric insulation layer, which housings communicate with cooled nozzles-anodes. On the unit of plasmochemical reactors, valve mechanism with inlet valve water steam intake. Valve mechanism includes fitting pipe for steam intake which fitting is connected with header attached to housings of plasmochemical reactors, with inlet valve located on header, with limiter and spring for water stem intake. Steam turbine plat for hydrogen combustion in oxygen and obtaining useful power is made with axial compressor connected to distributing device, which compressor is connected in series with connecting cylinders, combustion chambers equally spaced along circumference including injectors for hydrogen ignition in oxygen due to injection of gaseous jets of electroconducting liquid thermal dissociation products and hybrid injectors for injection of gaseous mixture of electroconducting liquid and hydrocarbon fuel thermal dissociation products, with expanding nozzles and cylinders of wave compressors, connected to steam turbine mounted on shaft connected with thermodissociating gas turbine plant and electric generator, which turbine is provided with outlet fitting pipe to discharge exhaust steam into condenser. Axial compressor is made with two housings, with inlet chamber with atmospheric air intake shutter gimbal-mounted on it. The second housing is equipped with inlet fitting pipe for intake of dissociation products - hydrogen and oxygen - from distributing device. Injector for hydrogen ignition in oxygen contains housing with fitting pipes for electroconducting liquid infeed which pipes are connected with cylindrical channels located inside housing in electric insulating material layer. On one end of these pipes, electrodes connected to pulse oscillator are installed, and on the other end nozzles are made which are directed at an angle to each other and communicating with injector explosion chamber having bottom with outlet holes for gas jets. The hybrid injectors contain housing with fitting pipes for electroconducting liquid infeed which pipes are connected with cylindrical channels located inside housing in electric insulating material layer in parallel with fuel injector location. On one end of these pipes, electrodes connected to pulse oscillator are installed, and on the other end nozzles are made which are directed at an angle to each other and communicating with injector explosion chamber having outlet nozzle for gas jets.

EFFECT: higher travel speed.

18 dwg

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