Combined-cycle gas plant

FIELD: machine building.

SUBSTANCE: combined-cycle gas-plant includes a boiler with fluidised bed under pressure, with a furnace containing a fluidised bed and a cyclone, installed inside the body, gas turbine unit, a steam turbine with a regenerative equipment tract, heat exchangers for cooling of the gases leaving the gas turbine and ash, leaving out boiler, gas treatment unit, the vortex chamber with a device for removing the slag in the liquid state, gas cooler. In parallel with the boiler on the air supply, coal and sorbent the device comprises a gasifier with fluidised bed. A stream of fuel gas leaving the gasifier is divided into two substreams. One substream of the fuel gas is fed for combustion into the vortex chamber. The combustion products of the vortex chamber are cooled in a slag trap beam and a gas cooler, and are cleaned in a ceramic filter and fed into the combustion chamber of a gas turbine. The second substream of combustible gas passes successively cooler gas sulfur cleaner installation, ceramic filter and then enters the combustion chamber of a gas turbine. In the combustion chamber the mixture of combustion products and combustible gas subflow takes place, as well as raising of the temperature of gases produced by burning fuel gas before the gases enter the gas turbine.

EFFECT: safe operation of the installation owing to the use of combustible gas produced in its own cycle, increase of efficiency factor at the cost of raising the temperature of the gases in front of the gas turbine.

1 dwg

 

The invention relates to the field of power engineering, in particular to a combined power plants, producing electricity and heat.

Known combined-cycle power plant (CCPP) [gas Turbine and combined cycle gas turbines of thermal power plants: textbook for universities / Svecane, Vdera, Animetv; edited Svetaeva. - 2nd ed., stereot. - M.: MPEI Publishing house, 2006, C-540], including fluidized bed boiler under pressure, is placed inside the furnace with a fluidized bed and cyclone steam turbine (ST) with equipment regenerative tract, the gas-turbine unit (GTU), a ceramic tube filter. The disadvantage PSU is insufficient efficiency of the gas turbine installation.

Also known combined-cycle power plant [RF Patent №238288, publ. 27.02.2010], including fluidized bed boiler under pressure, is placed inside the furnace with a fluidized bed and cyclone vortex chamber system of the liquid slag, the cooler gases used for gas cleaning, gas turbine generator, steam turbine equipment regenerative tract, the heat exchangers for cooling the gases emerging from the gas turbine, and also to cool the ash removed from the fluidized bed device for cleaning flue gases emitted into the atmosphere. The disadvantage PSU is the need for p is doda combustible gas from an external gas source, as well as the relatively low efficiency PSU in connection with the limit values of the gas temperature at the outlet of secolului beam not exceeding the softening temperature of the ash.

The technical result of the claimed invention is to ensure reliable operation of the PSU due to the use of combustible gas produced in its own cycle, CCGT, as well as increasing the efficiency of the PSU by increasing the gas temperature before the gas turbine.

The proposed combined combined-cycle power plant, including boiler with fluidized bed under pressure, is placed inside the furnace with a fluidized bed and a cyclone, gas turbine generator, steam turbine equipment regenerative tract, the heat exchangers for cooling the gases emerging from the gas turbine installation, and ash, leaving the boiler, the gas-cleaning installation, a vortex chamber with a device for removing slag in liquid form, the cooler gases, characterized in that in parallel with the boiler on the air supply, coal and sorbent installing placed gasifier fluidized bed, the flow of fuel gas exiting the gasifier, divided two substream, one substream of fuel gas supplied to the combustion vortex chamber, the combustion products from the vortex chamber are cooled in secolului beam and the cooler gases are cleaned in ceramic Phil is required and fed to the combustion chamber of a gas turbine, and the second subflow combustible gas passes successively cooler gases, stereochemically installation, ceramic filter and then enters into the combustion chamber of a gas turbine, in which the mixture of combustion products and substream combustible gas, and the temperature rise of the gas produced by burning fuel gas before entering the emerging gases in the gas turbine.

The above technical result in the implementation of the claimed invention is achieved by the fact that the PSU along with the fluidized bed boiler under pressure, is placed inside the furnace with a fluidized bed and a cyclone enters the gasifier fluidized bed, which serves for receiving a combustible gas. Fuel flow of gas leaving the gasifier is divided into two sub-flows. In the path of the gases leaving the fluidized bed boiler under pressure between the cyclone and the gas turbine installation, posted by the swirl chamber, in which no pre-cleaning is served first subflow gas fuel. At the exit gases from the vortex chamber has secolului tube bundle, and a device for removing slag in liquid form. Gases leaving the vortex chamber, is cooled in the cooler and cleaned in a ceramic filter. Then the flow of gases is fed into the combustion chamber of the gas turbine. In the combustion gases of the second turbine is also combustible gas after cooler, desulfurization and ceramic filter installed in the path of the second substream of fuel gas fed from the gasifier. In the process of working PSU in the furnace with a fluidized bed under pressure serves coal and sorbent. The combustion of coal in a fluidized bed with a temperature not exceeding 900°C, and the supply of sorbents able to provide high-quality coal combustion and reduce emissions of oxides of nitrogen and sulfur. A significant part of the heat released in the boiler furnace by burning coal, perceived and water vapor to be transported through the heating surface. Flue gases leaving the fluidized bed boiler under pressure, after the cyclone, enter the vortex chamber in which by burning the fuel gas supplied from the gasifier is installed where the ambient temperature exceeding the temperature at which geoplasma state of the ash particles. Ash particles from the gas stream in the vortex chamber, heated, turn into geoplace the state in the process of rotational motion collide with each other and coagulated. In the process of coagulation of drops ash is their coalescence. Due to the action of centrifugal force drops ash dropped to the walls of the vortex chamber and the slag flows in liquid form on the chamber walls down. From the lower part of the vortex chamber is liquid slag removal. At the exit gases from war the new cameras are installed secolului beam and the cooler gases, the cooled gases to a temperature below the temperature of the beginning geoplasma state. During cooling drops of ash and slag is transferred to the solid state and in the ceramic filter are removed from the gas path. Gas is directed into the combustion chamber of a gas turbine, due to the combustion of fuel gas, the temperature of the gases increases and they do work in GTU. Gases leaving the PSU, is subjected to a cleaning device for cleaning gases. Ashes and slag are drawn from the path, heading in the heat exchanger and transfer heat feedwater in the boiler.

The use of the claimed invention allows to organize reliable operation of CCGT, coal combustion, while ensuring the operation of the plant, using a combustible gas produced in its own cycle. The temperature rise of the gases in the combustion chamber before being fed into the gas turbine improves the efficiency of the PSU.

Conducted by the applicant's analysis of the technical solutions in similar designs available sources of information not revealed analogs characterized by the totality of inherent significant (or identical) characteristics. Identified the closest analogue of the claimed PSU has allowed to identify a set of essential towards specified by the applicant, the technical result of the distinctive features set forth in the claims./p>

Therefore, the claimed PSU meets the eligibility condition of "novelty."

Conducted by the applicant additional search known solutions in this and related areas of technology revealed no known use of the distinctive features of the proposed CCGT to solve the same or similar tasks. This proves that the claimed PSU does not follow for professionals in the obvious way from the prior art.

Thus, the claimed PSU meets the eligibility condition of "inventive step".

As for the industrial implementation of the claimed PSU no obstacles technical, technological or otherwise, that the claimed PSU meets the eligibility condition "industrial applicability".

The essence of the invention is explained below, a concrete example of its implementation and the drawing, which is a schematic representation of the inventive device. This does not exclude other options industrial implementation of the proposed object within the claims.

Combined-cycle power plant includes a boiler with fluidized bed under pressure, containing the boiler body 1, the furnace of the fluidized bed 2 and the cyclone to capture ash particles from gases 3 coming out of the furnace. The air supply to the furnace is supplied from the axial compressor of the gas turbine, and for p the giving of air in the gasifier is an additional blower 13. The path going from the boiler gases placed the swirl chamber 4, the output of which is secolului tube bundle 5. In a vortex chamber receives fuel gas 6. For slag removal from the vortex chamber and ash after secolului beam are devices 7 and 8. To reduce the gas temperature below the softening temperature of the slag installed the cooler gases 9. The cooled gases are cleaned in a ceramic filter 10, are then fed into the combustion chamber 11 and then to the gas turbine 12. After gas turbines placed along the gas heat exchangers 15 and the gas-cleaning installation 16. To obtain warmth and binding of sulfur in the furnace of the boiler enters the air, as well as coal and dolomite of the bins 17 and 18. The heat released in the furnace, perceive steam and water passing through the heating surface 24. Steam generated in the plant, enters the steam turbine 20, after a steam turbine, the steam and water pass through the equipment regenerative tract 19, 21 - 23. For heat of ash and slag installed heat exchanger 25. Order to obtain a combustible gas in the unit is arranged in the gasifier 26. The flow of fuel gas after the gasifier is divided into two sub-flows. One subflow immediately enters the vortex chamber, and the second substream is cooler gases 27, stereochemically installation 28, the ceramic filter 10 and healthy lifestyles which is in the combustion chamber of the gas turbine engine.

Combined-cycle power plant operates as follows. In the air compressor of the gas turbine, the air is compressed to a pressure not less than 1 MPa and goes into the furnace of the fluidized bed boiler under pressure. By feeding into the furnace with a fluidized bed of coal and sorbent, and naturally through the air grill with a corresponding excess in the furnace the combustion of the coal with heat release. The temperature of the fluidized bed in the furnace is maintained at 850 to 900°C. This helps to ensure low emissions of nitrogen oxides and largely to bind the sulfur oxides. Gases leaving the fluidized flow to the cyclone, which is the primary gas cleaning of ash particles. Of the ash particles predominantly coarse particles collected in the cyclone are returned back into the fluidized bed. Drain extra layer of particles is performed from the furnace through the discharge device. The gases that have passed primary cleaning of the cyclone through the snail in twisted form are placed in a vortex chamber. Part of the air compressed in the air compressor of the gas turbine, enters the compressor, the output of which the air pressure increases. This air is fed into the gasifier, in which the gasification process to receive a combustible gas. The flow of combustible gas is divided into two flows, one subflow enters the vortex chamber, and the second subflow consequently the runs cooler gases, stereochemically installation, ceramic filter and then directed into the combustion chamber of the gas turbine. Due to the combustion gas in the vortex chamber is set to a temperature exceeding the temperature geoplasma status ashes [3: Thermal design of boiler units (Normative method). Ed. Nevkusnoe and other Meters: Energy, 1973, 296 S.], which, for example, for the bulk of the coal exceeds 1350°C [3]. When the whirling movement of the ash particles that have fallen into a liquid state, they acquire a tear drop shape, collide with each other and coagulated. Then coagulated drops ash participate in the process of coalescence, and the combined liquid drops ash, which increased its size due to coalescence under the influence of centrifugal forces to move towards the walls of the vortex chamber and the chamber walls drain down. The molten slag in a liquid state through the device, the liquid slag is removed from the vortex chamber. Gases leaving the vortex chamber, cooled secolului the tube bundle and the cooler gases to a temperature below the softening temperature of the ash (the main mass of coals 1200°C [3]). When this happen solidification and removal of the remaining ash particles that have passed through the vortex chamber. Particles of ash in the solid state are caught in a ceramic filter and removed from the gas path. Gases, purified is passed from ash particles in the vortex chamber and the ceramic filter, as well as purified fuel gas from the gasifier is coming into the combustion chamber of the gas turbine. Due to the combustion of combustible gas in the combustion chamber the temperature of the gases increases, this increases the capacity of the gas turbine. After the gas turbine gases pass through the heat exchangers of the regenerative path of a steam turbine and heat up there the condensate and feed water. Cooled in heat exchangers gases are further cleaned in the gas-cleaning installation and are released into the atmosphere. Material layer, particles of ash and slag are removed from the tract, are water cooled in the heat exchanger.

Using the described setup allows you to produce combustible gas directly inside a combined-cycle plant. The temperature rise of the gases to the gas turbine through the combustion of fuel gas provides increased efficiency combined-cycle plant, as it allows you to enhance the overall temperature of the working fluid.

Combined combined-cycle power plant, including boiler with fluidized bed under pressure, is placed inside the furnace with a fluidized bed and a cyclone, gas turbine generator, steam turbine equipment regenerative tract, the heat exchangers for cooling the gases emerging from the gas turbine installation, and ash, leaving the boiler, the gas-cleaning installation, a vortex chamber with the device is the first to remove slag in liquid form, the cooler gases, characterized in that in parallel with the boiler on the air supply, coal and sorbent installing placed gasifier fluidized bed, the flow of the fuel gas exiting the gasifier is divided into two flows, one substream of fuel gas supplied to the combustion vortex chamber, the combustion products from the vortex chamber are cooled in secolului beam and the cooler gases are cleaned in a ceramic filter and fed into the combustion chamber of a gas turbine, and the second subflow combustible gas passes successively cooler gases, stereochemically installation, ceramic filter and then enters into the combustion chamber of a gas turbine, in which there is a mixture of combustion products and substream combustible gas, and the temperature rise of the gas produced by burning fuel gas before entering the emerging gases in the gas turbine.



 

Same patents:

FIELD: power industry.

SUBSTANCE: low pressure oxidiser is compressed with multi-stage compressor, and then it is supplied to high pressure combustion chamber to which some part of fuel and heated high pressure oxidiser flow is supplied as well. Combustion products are supplied from combustion chamber to gas turbine, and then to fuel element for electrochemical oxidation of the other fuel part. At least some part of low pressure oxidiser is supplied to fuel element input and the flow leaving the fuel element is burnt in low pressure combustion chamber. Low pressure oxidiser supplied to fuel element input is taken from lower stages of compressor.

EFFECT: reducing fuel flow, improving operating reliability of fuel element and decreasing the losses due to insufficient expansion of combustion products in the turbine.

9 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: electro-station of combined cycle with inter-cyclic gasification consists of: gasificator (2) with solid fuel, air compressor (12), combustion chamber (11) for combustion of gas fuel from gasificator in mixture with compressed air from compressor, gas turbine (13), booster (21), circuit of gasified agent (A), bypass (D) of gasified agent, and multi-purpose valve (23). Bypass (D) adjoins an inlet branch of combustion chamber (11). Circuit (A) of gasified agent supply diverges from booster (21) rising pressure of gasified agent supplied to gasificator (2). Bypass (D) of gasified agent has valve (23) of control of withdrawn pressure. Value of flow or pressure of gasified agent supplied into gasificator (2) via circuit (A) of supply of gasifier agent can be controlled depending on degree of valve (23) opening. Valve (23) is located on bypass (D) of gasifier agent. There is eliminated necessity in installation of control accessories in circuit (A) of gasifier agent supply.

EFFECT: avoiding drops of pressure in circuit of gasifier agent supply, which allows essential reduction of pressure at output of booster.

18 cl, 29 dwg

Gas generator // 2406840

FIELD: machine building.

SUBSTANCE: gas generator consists of inlet and outlet valves with rods located in its combustion chamber, of communicating with chamber cylinder with spring-loaded stepped slide valve positioned between two arresters of its run and of mechanisms of delay. A channel of fuel discharge with an on-off valve installed in it is connected to a fuel supply main. The mechanisms of delay correspond to spring elements arranged on rods of the inlet and outlet valves and resting on the case of the chamber; the spring elements change character of power to a reverse one in the process of deformation. A fuel tank with a filter, and a fuel pump with an electric engine are mounted on the gas generator. The fuel system is equipped with a conic nozzle and controlled system of air ejector.

EFFECT: usage of generator as independent unit.

1 dwg

FIELD: heating.

SUBSTANCE: invention relates to heat power engineering. Steam gas plant with coal pyrolysis includes steam turbine unit, gas turbine unit, waste-heat boiler of gas turbine unit. Steam turbine unit includes steam boiler operating on solid fuel, steam turbine, regenerative air heater and condensate pump. Gas turbine unit includes combustion gaseous fuel chamber, compressor and gas turbine using heated compressed air as working medium. At that, steam gas plant includes a group of independent operating pyrolysers, pyrolysis gas coolers, separator and fine filter. Pyrolysers are installed above burner tier of steam boiler and equipped with pulverised coal and air supply branch pipes. Each pyrolyser is connected by means of coal char supply channel at least to one boiler burner and pyrolysis gas cooler, one of the outlets of which is connected to separator. Coolers and separator is connected via resin and liquid hydrocarbon outlet pipeline to the boiler burners. Separator is connected via pyrolysis gas supercharger by means of supply channel of that gas to fine filter, one of the outlets of which is connected through booster compressor to combustion gaseous fuel chamber, and its other outlet - to the boiler burners through char coal supply channel. Outlets of coolers are connected to regenerative air heaters.

EFFECT: invention allows increasing economy, operating reliability, ecological properties of steam gas plant.

4 cl, 2 dwg

FIELD: technological processes, fuel.

SUBSTANCE: method includes drying of solid fuel, its pyrolysis in reactor in fluidizated layer with solid coolant with preparation of steam-gas mixture and coal char, their discharge from reactor and separation. Steam-gas mixture is cleaned, and part of it is burned in combustion chamber of gas turbine with generation of electric energy and utilization of exhaust gases. Coal char is separated into coal char separator into two flows by fractions. Coarse fraction is sent to activator for production of activated coal, and the fine one - into gas generator for preparation of generator gas, which is then cleaned and conditioned together with remaining part of cleaned steam-gas mixture to prepare synthesis-gas, which is supplied to reactor for synthesis of liquid carbohydrates. Solid coolant is heated in technological furnace by its partial combustion with production of smoke gases and returned to pyrolysis reactor. At that prepared activated coal is directed as sorption material for purification of steam-gas mixture and generator gas, and spent activated coal is returned back to gasification stage.

EFFECT: maximum possible amount of high-quality liquid fuels of wide purpose with simultaneous efficient power generation by application of gas tube installation.

6 cl, 1 dwg

Gas-turbine engine // 2280184

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine contains housing with fitted-in shaft, compressor, combustion chamber, turbine and fuel preparation and delivery system. Housing is provided with cover sealing its inlet. Fuel preparation and delivery system is made in form of electrolyzer consisting of electrodes to which direct current is supplied and installed before compressor in sealed part of housing and of electrodes formed by delivery of direct current to guide and working blades of compressor. Pumping device of fuel preparation and delivery system provides delivery and atomizing of electrolyte (water solution of electrolyte) through nozzle furnished with cavitator, in electrolyzer where electrolysis of water takes place under action of direct current passing through electrolyte. Compressor is made for building vacuum in sealed part of housing and compression and delivery of gas mixture into combustion chamber.

EFFECT: reduced consumption of fuel, no adverse effect on environment.

2 cl, 1 dwg

Gas-turbine engine // 2280183

FIELD: mechanical engineering; gas turbine engines.

SUBSTANCE: proposed gas-turbine engine contains housing with fitted-in shaft, compressor, combustion chamber, turbine and fuel preparation and delivery system. Housing is provided into cover sealing its inlet. Fuel preparation and delivery system is made in form of electrolyzer with supply of direct current to guide and working blades of compressor. Pumping device and nozzle with cavitator of fuel preparation and delivery system are made to feed and atomize water solution of electrolyte in electrolyzer. Compressor is made for building vacuum in seal part of housing and decomposition of water into hydrogen and oxygen under action of direct current passing through electrolyte.

EFFECT: reduced consumption of fuel, no adverse effect on environment.

2 cl, 2 dwg

Gas turbine engine // 2280182

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine contains housing with fitted-in shaft, compressor, combustion chamber with igniter, turbine and fuel preparation and delivery system. Housing is provided with cover sealing its inlet. Fuel preparation and delivery system is made in form of electrolyzer installed with possibility of supply of direct current to its electrodes, free passing of electrolyte (water solution of electrolyte) through electrolyzer and products of water decomposition formed under action of direct current passing through electrolyte. Electrolyzer is installed before compressor in sealed part of housing. Pumping device and nozzle serve to deliver and atomize water solution of electrolyte in electrolyzer. Nozzle is furnished with cavitator made in form of local contraction of channel.

EFFECT: reduced consumption of fuel, adverse effect on environment.

3 cl, 2 dwg

The invention relates to the field of energy

Modular power plant // 2140545
The invention relates to the production of energy by water vapor, and more specifically to a modular power plant that operates from a source of geothermal steam

FIELD: machine building.

SUBSTANCE: combined-cycle gas-plant includes a boiler with fluidised bed under pressure, with a furnace containing a fluidised bed and a cyclone, installed inside the body, gas turbine unit, a steam turbine with a regenerative equipment tract, heat exchangers for cooling of the gases leaving the gas turbine and ash, leaving out boiler, gas treatment unit, the vortex chamber with a device for removing the slag in the liquid state, gas cooler. In parallel with the boiler on the air supply, coal and sorbent the device comprises a gasifier with fluidised bed. A stream of fuel gas leaving the gasifier is divided into two substreams. One substream of the fuel gas is fed for combustion into the vortex chamber. The combustion products of the vortex chamber are cooled in a slag trap beam and a gas cooler, and are cleaned in a ceramic filter and fed into the combustion chamber of a gas turbine. The second substream of combustible gas passes successively cooler gas sulfur cleaner installation, ceramic filter and then enters the combustion chamber of a gas turbine. In the combustion chamber the mixture of combustion products and combustible gas subflow takes place, as well as raising of the temperature of gases produced by burning fuel gas before the gases enter the gas turbine.

EFFECT: safe operation of the installation owing to the use of combustible gas produced in its own cycle, increase of efficiency factor at the cost of raising the temperature of the gases in front of the gas turbine.

1 dwg

Gas turbine engine // 2280182

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine contains housing with fitted-in shaft, compressor, combustion chamber with igniter, turbine and fuel preparation and delivery system. Housing is provided with cover sealing its inlet. Fuel preparation and delivery system is made in form of electrolyzer installed with possibility of supply of direct current to its electrodes, free passing of electrolyte (water solution of electrolyte) through electrolyzer and products of water decomposition formed under action of direct current passing through electrolyte. Electrolyzer is installed before compressor in sealed part of housing. Pumping device and nozzle serve to deliver and atomize water solution of electrolyte in electrolyzer. Nozzle is furnished with cavitator made in form of local contraction of channel.

EFFECT: reduced consumption of fuel, adverse effect on environment.

3 cl, 2 dwg

Gas-turbine engine // 2280183

FIELD: mechanical engineering; gas turbine engines.

SUBSTANCE: proposed gas-turbine engine contains housing with fitted-in shaft, compressor, combustion chamber, turbine and fuel preparation and delivery system. Housing is provided into cover sealing its inlet. Fuel preparation and delivery system is made in form of electrolyzer with supply of direct current to guide and working blades of compressor. Pumping device and nozzle with cavitator of fuel preparation and delivery system are made to feed and atomize water solution of electrolyte in electrolyzer. Compressor is made for building vacuum in seal part of housing and decomposition of water into hydrogen and oxygen under action of direct current passing through electrolyte.

EFFECT: reduced consumption of fuel, no adverse effect on environment.

2 cl, 2 dwg

Gas-turbine engine // 2280184

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine contains housing with fitted-in shaft, compressor, combustion chamber, turbine and fuel preparation and delivery system. Housing is provided with cover sealing its inlet. Fuel preparation and delivery system is made in form of electrolyzer consisting of electrodes to which direct current is supplied and installed before compressor in sealed part of housing and of electrodes formed by delivery of direct current to guide and working blades of compressor. Pumping device of fuel preparation and delivery system provides delivery and atomizing of electrolyte (water solution of electrolyte) through nozzle furnished with cavitator, in electrolyzer where electrolysis of water takes place under action of direct current passing through electrolyte. Compressor is made for building vacuum in sealed part of housing and compression and delivery of gas mixture into combustion chamber.

EFFECT: reduced consumption of fuel, no adverse effect on environment.

2 cl, 1 dwg

FIELD: technological processes, fuel.

SUBSTANCE: method includes drying of solid fuel, its pyrolysis in reactor in fluidizated layer with solid coolant with preparation of steam-gas mixture and coal char, their discharge from reactor and separation. Steam-gas mixture is cleaned, and part of it is burned in combustion chamber of gas turbine with generation of electric energy and utilization of exhaust gases. Coal char is separated into coal char separator into two flows by fractions. Coarse fraction is sent to activator for production of activated coal, and the fine one - into gas generator for preparation of generator gas, which is then cleaned and conditioned together with remaining part of cleaned steam-gas mixture to prepare synthesis-gas, which is supplied to reactor for synthesis of liquid carbohydrates. Solid coolant is heated in technological furnace by its partial combustion with production of smoke gases and returned to pyrolysis reactor. At that prepared activated coal is directed as sorption material for purification of steam-gas mixture and generator gas, and spent activated coal is returned back to gasification stage.

EFFECT: maximum possible amount of high-quality liquid fuels of wide purpose with simultaneous efficient power generation by application of gas tube installation.

6 cl, 1 dwg

FIELD: heating.

SUBSTANCE: invention relates to heat power engineering. Steam gas plant with coal pyrolysis includes steam turbine unit, gas turbine unit, waste-heat boiler of gas turbine unit. Steam turbine unit includes steam boiler operating on solid fuel, steam turbine, regenerative air heater and condensate pump. Gas turbine unit includes combustion gaseous fuel chamber, compressor and gas turbine using heated compressed air as working medium. At that, steam gas plant includes a group of independent operating pyrolysers, pyrolysis gas coolers, separator and fine filter. Pyrolysers are installed above burner tier of steam boiler and equipped with pulverised coal and air supply branch pipes. Each pyrolyser is connected by means of coal char supply channel at least to one boiler burner and pyrolysis gas cooler, one of the outlets of which is connected to separator. Coolers and separator is connected via resin and liquid hydrocarbon outlet pipeline to the boiler burners. Separator is connected via pyrolysis gas supercharger by means of supply channel of that gas to fine filter, one of the outlets of which is connected through booster compressor to combustion gaseous fuel chamber, and its other outlet - to the boiler burners through char coal supply channel. Outlets of coolers are connected to regenerative air heaters.

EFFECT: invention allows increasing economy, operating reliability, ecological properties of steam gas plant.

4 cl, 2 dwg

Gas generator // 2406840

FIELD: machine building.

SUBSTANCE: gas generator consists of inlet and outlet valves with rods located in its combustion chamber, of communicating with chamber cylinder with spring-loaded stepped slide valve positioned between two arresters of its run and of mechanisms of delay. A channel of fuel discharge with an on-off valve installed in it is connected to a fuel supply main. The mechanisms of delay correspond to spring elements arranged on rods of the inlet and outlet valves and resting on the case of the chamber; the spring elements change character of power to a reverse one in the process of deformation. A fuel tank with a filter, and a fuel pump with an electric engine are mounted on the gas generator. The fuel system is equipped with a conic nozzle and controlled system of air ejector.

EFFECT: usage of generator as independent unit.

1 dwg

FIELD: machine building.

SUBSTANCE: electro-station of combined cycle with inter-cyclic gasification consists of: gasificator (2) with solid fuel, air compressor (12), combustion chamber (11) for combustion of gas fuel from gasificator in mixture with compressed air from compressor, gas turbine (13), booster (21), circuit of gasified agent (A), bypass (D) of gasified agent, and multi-purpose valve (23). Bypass (D) adjoins an inlet branch of combustion chamber (11). Circuit (A) of gasified agent supply diverges from booster (21) rising pressure of gasified agent supplied to gasificator (2). Bypass (D) of gasified agent has valve (23) of control of withdrawn pressure. Value of flow or pressure of gasified agent supplied into gasificator (2) via circuit (A) of supply of gasifier agent can be controlled depending on degree of valve (23) opening. Valve (23) is located on bypass (D) of gasifier agent. There is eliminated necessity in installation of control accessories in circuit (A) of gasifier agent supply.

EFFECT: avoiding drops of pressure in circuit of gasifier agent supply, which allows essential reduction of pressure at output of booster.

18 cl, 29 dwg

FIELD: power industry.

SUBSTANCE: low pressure oxidiser is compressed with multi-stage compressor, and then it is supplied to high pressure combustion chamber to which some part of fuel and heated high pressure oxidiser flow is supplied as well. Combustion products are supplied from combustion chamber to gas turbine, and then to fuel element for electrochemical oxidation of the other fuel part. At least some part of low pressure oxidiser is supplied to fuel element input and the flow leaving the fuel element is burnt in low pressure combustion chamber. Low pressure oxidiser supplied to fuel element input is taken from lower stages of compressor.

EFFECT: reducing fuel flow, improving operating reliability of fuel element and decreasing the losses due to insufficient expansion of combustion products in the turbine.

9 cl, 1 dwg

Up!