Combined power system

FIELD: power engineering.

SUBSTANCE: combined power system comprises a gas-turbine engine, a power generator mechanically joined by a shaft with the engine and a source of cold air connected in a gas-dynamic manner with the inlet to the engine. The system additionally comprises a device to prepare and to supply gaseous hydrogen into the engine, which includes a reservoir of liquid hydrogen, a pump of liquid hydrogen supply with a drive, suction and discharge pipelines with stop valves, a heater, an accumulator-gasifier of liquid hydrogen, and also an exhaust header comprising a gas duct with a stop valve, double-fuel burners in an engine combustion chamber, an outlet stop valve and a pressure reducer. The pump at the inlet via a suction pipeline with a stop valve is connected to a liquid hydrogen reservoir, and at the outlet - via a discharge pipeline with a stop valve to the inlet of the accumulator-gasifier. The accumulator-gasifier outlet via an outlet stop valve and a pressure reducer is connected with double-fuel burners of the combustion chamber. The gas duct is connected in a gas-dynamic manner by its inlet to the engine outlet, and by its outlet - via a stop valve - to atmosphere. The heater is arranged in the form of a closed cavity. The liquid hydrogen accumulator-gasifier is arranged in the form of a reservoir and is placed in the heater's cavity.

EFFECT: stable production of power of guaranteed level in a wide temperature range of atmospheric air with lower emission of hazardous admixtures with an exhaust gas.

18 cl, 6 dwg

 

The invention relates to the field of energy and can be used to generate electricity guaranteed options in a wide temperature range of atmospheric air under reduced emission of harmful substances in exhaust gases.

Known installation comprising a gas turbine engine and mated with her shaft generator (patent RF №2013615, F02 6/00, 16.01.1992). Installing power gas turbine engine provides power generation by the generator. The lack of technical solutions is reduced generation of electricity in the summer when high ambient temperature, and the emission of exhaust gases with a high content of harmful substances.

The closest analogue of the same purposes that the claimed technical solution is a gas turbine power plant (patent RF №2354838, F02 7/143, 19.11.2007)containing a gas turbine engine, mechanically associated shaft with a motor generator and a device for supplying cooled air in a gas turbine engine.

Technical solution the prototype allows to increase the efficiency of a gas turbine when operating it in the hottest period of the year. However, its disadvantage is the emission of exhaust gases with a high content of harmful substances is STV.

The basis of the invention it is the solution of the following tasks:

- ensuring a guaranteed level of generated power of the electric power at high ambient temperature;

- improving environmental performance during operation of the power system by reducing the content of harmful impurities in the exhaust gas.

The task is solved by the fact that the combined power system comprises a gas turbine engine, mechanical shaft connected with the motor generator and the source of cold air associated gazodinamichesky from entering the engine.

New in the invention is that the system is additionally provided with a device for preparation and supply of gaseous hydrogen into the engine, exhaust manifold, dual-fuel burners in the combustion chamber of the engine, the output shut-off valve and pressure reducer. The device contains a reservoir of liquid hydrogen pump liquid hydrogen driven, suction and discharge piping with shutoff valve, heater, made in the form of a closed cavity, the drive-gasifier liquid hydrogen made in the form of containers and placed in the cavity of the heater. Exhaust manifold contains gasovod with shut-off valve.

The pump inlet through the suction pipe with shut-off valve connected to the tank of liquid hydrogen, and the output - through pressure piping with shutoff valve to the input of the drive-gasifier. The output of the drive-gasifier through an outlet shutoff valve and the pressure reducer is connected with dual-fuel burners of the combustion chamber. Gasovod associated gazodinamichesky input with motor output, and the output is through a check valve with the atmosphere.

This device combined energy system:

- ensuring power system device preparation and supply of gaseous hydrogen into the engine allows to improve the quality of air-fuel mixture for combustion in the combustion chamber of the gas turbine engine and to reduce the content of harmful substances in the exhaust gas;

- the presence of a reservoir of liquid hydrogen allows to ensure a long, trouble-free operation of the power system;

- pump with a drive creates the necessary pressure liquid hydrogen for submission to the drive-gasifier in the process of pumping it into the drive-gasifier;

- suction and discharge piping with shutoff valves provide flow of liquid hydrogen in the pump and discharge it into the drive-gasifier;

- heater accelerates the gasification of liquid hydrogen in the drive-gasifier;

drive-gasifier allows you to gasify liquid hydrogen, is velicity pressure gas-liquid mixture to its full gasification at elevated temperature and to provide the gas pressure, much higher than the supply pressure of the pump, which reduces the dimensions and weight of the drive-gasifier;

- exhaust manifold, including gasovod with a shut-off valve allows you to divert exhaust gases into the atmosphere;

- dual-fuel burners provide high quality preparation of the combustible mixture of air and fuel, guaranteeing a minimum level of oxides of nitrogen.

The development of the essential features of the invention for particular cases is given below.

The heater is made in the form of waste heat of exhaust gases of a gas turbine engine, and the exhaust manifold may further comprise gasovod exchanger with shutoff valve, and gasovod exchanger gazodinamichesky input connected with the output of the engine, and the output is through a check valve and the inner cavity of the heat exchanger with the atmosphere, the internal cavity of the heat exchanger related to heat storage-gasifier.

The heat exchanger, together with gazivoda exchanger and a shut-off valve allows you to use the heat of exhaust gases to reduce the time of gasification of liquid hydrogen in the drive-gasifier.

The source of cold air may contain a source of compressed air, the turboexpander and mechanically associated with it on the shaft an additional electric generator, and a source of compressed air is via the expander gazodinamichesky must be associated with the intake of the engine.

The expander reduces the temperature below the ambient temperature and supplies the cooled air to the compressor inlet. This device provides continuous cold air with the specified parameters to the input of the engine and, accordingly, the predetermined power level of the engine when the temperature of the environment. Moreover, the generator of the expander produces additional electricity.

The pump liquid hydrogen can be performed centrifugal. This allows you to minimize the mass of the pump when it is satisfactory efficiency.

The pump drive is made in the form of an electric motor. This allows the use of available electricity to power the drive.

The pump drive may be in the form of a turbine. This allows you to minimize the mass of the actuator when it is high efficiency.

The pump and the turbine can be equipped with magnetic bearings with an electronic control system. This gives the possibility to exclude the lubrication system for the bearings, to improve the efficiency of the turbo pump and extend the life of its operation.

Turbine pump drive can be gazodinamichesky input is connected through a check valve with a source of compressed air, and an exit to the atmosphere. This allows the use of a commercially available system compressed air as the working fluid of the turbine.

Turbine pump drive can be equipped with a separate system for the preparation and submission of a working body, which includes an additional gasifier liquid hydrogen, gas valve, gas pressure regulator, gas pipelines of high and low pressure hydrogen tank. The gasifier gazodinamichesky input connected with the output of the pump, and the output is through a high pressure gas pipeline and the gas pressure regulator with inlet into the turbine. The outlet of the turbine through the low-pressure gas pipeline and the gas valve is connected with a hydrogen capacity This allows you to use the available internal energy potential for pump drive.

The exhaust manifold may further comprise gasovod gasifier with shut-off valve. Gasifier gazodinamichesky and heat input connected with the output of the engine through gasovod gasifier and the shut-off valve, and the output is with the atmosphere. This allows you to use the heat of exhaust gas to intensify the process of gasification of liquid hydrogen in the gasifier, thus reducing mass gasifier.

Hydrogen capacity can be drive-gasifier, while the outlet of the turbine is connected through a low-pressure gas pipeline and the gas valve with the output of the drive-gasifier. This allows to simplify the system and reduce its intensity and value.

Hydrogen eat the awn can be performed, at least two tanks communicating with each other. This allows the hydrogen capacity of containers available sizes and reduce its cost.

Drive-gasifier can be performed, at least two tanks communicating with each other. This allows the drive - gasifier of containers available sizes and reduce its cost.

A tank of liquid hydrogen can be made in the form of transport capacity. This allows to reduce the cost of the power system through the use of commercially available containers, such as tanks, tank trucks.

Dual-fuel burners of the combustion chamber may contain a separate contours of the filing of the regular fuel gas turbine engine, gaseous hydrogen and air. This improves the mixing of the air-fuel mixture, provides a reduction in the length of the combustion zone and, consequently, reduces the formation of oxides of nitrogen impurities in the exhaust gas of the gas turbine engine.

The combined system may further comprise an ejector with a gas and air inputs. The ejector is located at the junction of the output gazivoda exchanger and the internal cavity of the heat exchanger. Here the inlet manifold into the cavity of the exchanger is made in the form of a gas inlet of the ejector, and the air inlet of the ejector is connected with atmospheres is th. This allows you to bring the heat to drive the gasifier with the restriction of its temperature, which may be caused, for example by limiting the magnitude of the pressure of the hydrogen gas in the drive-gasifier under the terms of its strength.

Drive-gasifier may further comprise a docking device for power users gaseous hydrogen. This allows you to supply gaseous hydrogen high pressure in addition to the gas turbine engine and other consumers, for example, gas cylinders, which expands the consumer properties of the power system.. In particular, gaseous hydrogen high-pressure (70 MPa) can be filled with lightweight composite metal cylinders BC-7-700 AC up to 12 liters of production ZAO NPP "Mostest" to ensure the operation of fuel cells in vehicles.

The hydrogen tank may further comprise a connecting device for power supply of consumers of hydrogen gas of high pressure, such as burners of the combustion chambers of gas turbine engines, fuel cells or hydrogen-oxygen steam generators. So the stoichiometric combustion of hydrogen in oxygen, followed by ballasting with water resulting product of combustion allows using H2/O2-steam generator to implement a variety of termodinamica the Kie cycles of energy conversion. In particular, when the steam pressure of 20 MPa and a temperature of 1500 K can be achieved in the schemes on the basis of these steam units efficiency 0.62 near that efficiency competitive even with promising PSU at a comparable cost.

Thus resolved supplied invention tasks:

- a guaranteed level of generated power of the electric power at high ambient temperature;

- improved environmental performance during operation of the power system by reducing the content of harmful impurities in the exhaust gas.

The present invention is explained in the subsequent detailed description of the combined energy of the system and its operation with reference to the schematic image of the system represented in figure 1-6, where:

figure 1 shows a General view of the combined energy of the system;

figure 2 shows a General view of the combined power system with a supply of heat of the exhaust gas to drive to the gasifier.

figure 3 shows a General view of the combined energy system diagrams version of the source of cold air and power air pump drive flow of the liquid hydrogen;

figure 4 shows a General view of the combined power system with a variant of the power system with gaseous hydrogen pump drive;

figure 5 shows a General view of the combined power system with another variant of the power system with hydrogen pump drive;

figure 6 shows a General view of the combined power system with ejector in gazivode exchanger.

The combined power system includes (see figure 1) gas turbine engine 1, mechanical shaft connected with the engine 1, the generator 2 and the source 3 cold air associated gazodinamichesky the entrance of the engine 1. The system is further provided with a device 4 for the preparation and submission of gaseous hydrogen into the engine 1. The device 4 includes a tank 5 liquid hydrogen pump 6 supply of liquid hydrogen with a drive 7, 8 and suction pressure 9 pipelines, respectively, with shut-off valves 10 and 11, a heater 12, made in the form of a closed cavity 13, the drive-gasifier 14 of liquid hydrogen, is made in a container and placed in the cavity 13 of the heater 12, and the exhaust manifold 15, which includes gasovod 16 with shut-off valve 17, the dual-fuel burner 18 of the combustion chamber of the engine 1, the output shut-off valve 19 and the pressure reducer 20. The pump 6 at the entrance through the suction pipe 8 with shut-off valve 10 is connected to the tank 5 liquid hydrogen, and the output - through discharge pipe 9 with shut-off valve 11 to the input of the drive-gasif Katara 14. The output of the drive-gasifier 14 through the outlet valve 19 and the pressure reducer 20 is connected with dual-fuel burners 18 of the combustion chamber. Gasovod 16 is connected gazodinamichesky input with the output of the engine 1, and output through a check valve 17 to the atmosphere. The internal cavity 13 of the heater 12 is associated gazodinamichesky and warmth with drive-gasifier 14.

The heater is a heat exchanger 12 (see figure 2) engine exhaust and exhaust manifold 15 includes advanced gasovod exchanger 21 with shut-off valve 22. Gasovod 21 gazodinamichesky input connected with the output of the engine 1, and the output is through a check valve 22 and the inner cavity 13 of the heat exchanger 12 with the atmosphere. The inner cavity 13 of the heat exchanger 12 is connected to heat storage-gasifier 14.

Source 3 cold air contains (see figure 3) the source 23 of compressed air, the expander 24 and mechanically associated with it on the shaft an additional generator 25. Moreover, the source 23 of compressed air through the expander 24 gazodinamichesky associated with the intake of the engine 1. The pump 6 supply of liquid hydrogen is made centrifugal, and the pump 6 is made in the form of the turbine 26.

The pump 6 and the turbine 26 is equipped with magnetic bearings with an electronic control system (not shown).

Turbine 26 gazodinamichesky input connected cher the C shut-off valve 27 to a source 23 of compressed air, and the output is with the atmosphere.

Turbine 26 in another embodiment (see figure 4) can be equipped with a separate system for the preparation and submission of a working body, which includes an additional gasifier 28 of liquid hydrogen, the gas valve 29, the controller 30 of the gas pressure, the high pressure gas line 31, the low-pressure gas pipeline 32, the hydrogen tank 33. The gasifier 28 gazodinamichesky input connected with the output of the pump 6, and the output is input to the controller 30 of the gas pressure. The output of the controller 30 of gas pressure connected through the pipeline 31 high pressure turbine inlet 26 to the outlet of the turbine 26 through the pipeline 32 low pressure and the gas valve 29 is connected with a hydrogen capacity of 33.

Exhaust manifold 15 advanced (figure 4) may contain gasovod gasifier 34 with shut-off valve 35. However gasovod gasifier 34 of the exhaust manifold 15 gazodinamichesky associated input with the output of the engine 1 and the output through the gasifier 28 - with the atmosphere.

Hydrogen tank 33 may be made of at least two containers connected.

The operation of the hydrogen tank can perform (see figure 5) drive-gasifier 14, and the outlet of the turbine 26 is connected through the low-pressure gas pipeline 32 and the gas valve 29 with the output of the drive-gasifier 14.

Drive-gasifier 14 may be made of at least two container of the stay, communicating with each other. The tank 5 liquid hydrogen can be made in the form of transport capacity.

Dual-fuel burners 18 contain separate contours of the filing of the regular fuel gas turbine engine 1, hydrogen gas and air (not shown).

The combined system may further comprise (see Fig.6) the ejector 36 gas 37 and 38 air inputs. Moreover, the ejector 36 is located at the junction of the output gazivoda exchanger 21 with the internal cavity 13 of the heat exchanger 12. The output of gazivoda 21 into the cavity 13 of the heat exchanger 12 is in the form of a gas inlet of the ejector 37, and the air inlet of the ejector 38 is connected with the atmosphere.

Drive-gasifier 14 may further comprise a docking device for power users gaseous hydrogen, such as fuel cells or gas cylinders (not shown).

Hydrogen tank 33 may include a docking device to supply the consumers with gaseous hydrogen, for example the burner combustion chamber of a gas turbine engine (not shown).

The system (see figure 1) is as follows.

Before you start a tank of liquid hydrogen 5 is filled with liquid to a pressure exceeding atmospheric pressure; open shut-off valves 10, 11 and 17 of the exhaust manifold. Run gas turbine engine 1, with submission in two oblivous burner 18 regular fuel. Of the engine 1, the exhaust gas through gasovod 16 and check valve 17 is discharged in the atmosphere. Included in the source of cold air 3 and the cold air is fed to the inlet of the gas turbine engine 1, reducing the temperature entering the engine 1 air. Enables the actuator 7 and from the tank 5 through the pipe 8 with the valve 10, the pump 6 starts feeding liquid hydrogen through the pipe 9 with the valve 11 in the drive-gasifier 14, where it is gasified. After filling the drive-gasifier 14 is closed shut-off valve 11 and when reaching into the drive-gasifier 14 of the pressure of the hydrogen gas necessary for the operation of the engine size open the outlet valve 19. Hydrogen gas through the pressure reducer 20, to maintain the correct pressure value comes in dual-fuel burner 18 and the grid starts to work in dual-fuel mode.

When the system is presented in figure 2, after completion of the pumping of liquid hydrogen from the tank 5 into the drive-exchanger 14 is opened shut-off valve 22 and the exhaust gas through gasovod 21 of the exhaust manifold 15 is fed into the internal cavity 13 of the heat exchanger 12 and heating it gasifies liquid hydrogen in the drive-gasifier 14.

When the system is presented on figure 3, after starting the gas turbine engine 1 in the source of the ICA cold air 3 from the compressed air source 23 with the ambient temperature is supplied compressed air in the expander 24, the temperature and pressure of the air decreases and the cooled air is supplied to the input of the gas turbine engine 1. Produced in the expander 24, the power used to drive auxiliary generator 25.

In addition (see figure 3), after starting the gas turbine engine 1 may open valve 27 and from the compressed air source 23 through the valve 27, the compressed air will enter the turbine 26, which is driven pump 6.

At system startup, is presented in figure 4, after starting the gas turbine engine 1, the valve opens gas 29. The liquid in the pump 6 is divided into two parts: one part through a check valve 11 enters the drive-gasifier 14 and the other in the gasifier 28. In the gasifier 28, the liquid is gasified, and through the high pressure gas pipeline 31 and the gas pressure regulator 30 is supplied to the turbine 26. The turbine 26 is moved a pressure differential is generated torque and the turbine 26, together with the mechanically associated pump 6 starts to rotate, resulting in increasing pressure for the pump 6. From the turbine 26, the hydrogen gas through the low pressure gas pipeline 32 gas valve 29 is supplied in the hydrogen tank 33.

In addition (figure 4), after starting the engine 1 in gazivode gasifier 34 of the exhaust manifold 15 can be opened shut-off valve 35 and the exhaust gas is additionally pic is there in the atmosphere of the gas turbine engine 1 through gasovod 34 and the gasifier 28. When passing in the gasifier 28 exhaust gas gasifies passes through liquid hydrogen.

When the system is presented on figure 5, the hydrogen gas from the turbine 26 through the low-pressure gas pipeline 32 and the shut-off valve 29 is output drive-gasifier 14.

Drive-gasifier 14 may be (figure 5) is made of at least two containers connected.

When the power system represented by figure 6, the exhaust gas with a high temperature through a check valve 22 exits gazivoda exchanger 21 of the exhaust manifold 15 and is supplied through a gas inlet 37 into the ejector 36. In the ejector 36 through an air inlet 38 enters atmospheric air, which is mixed in the ejector 36 with the exhaust gas. Diluted exhaust gas of low temperature flows into the internal cavity 13 of the heat exchanger 12, where it intensifies the process of gasification of liquid hydrogen.

Part of the hydrogen gas from the accumulator-exchanger 14 through the connecting device (not shown) sent to the consumers of hydrogen gas.

Part of the hydrogen gas from the hydrogen tank 33 through the connecting device (not shown) sent to the consumers of hydrogen gas.

As an example, we will choose gas turbine power mouth is ovcu PAES-2500. In Russia there is a huge Park (over 1000 pieces) issued by the mobile industry automated PAES-2500 2.5 MW, which uses a single gas turbine aircraft engine AI-20. It seems promising to modernize these GTU order to improve their performance and environmental performance. The feasibility of using GTU type PAES-2500 in the inventive gas turbine power plant is confirmed by the results of comparative calculations.

The main parameters adopted in the current study GTU at normal temperatures TN=288 To: power 2500 kW, air flow rate of 20 kg/s, the rate of increase of the total pressure of the air 7.0, the temperature before the turbine 1030 To the efficiency of the compressor 0.85, the turbine efficiency of 0.88.

As a tank of liquid hydrogen using standard transport capacity of 25 m (RPO 25/06) with liquid hydrogen at a temperature of about 23 To and the corresponding pressure of 0.20 MPa.

Drive-gasifier made in the form of three identical parallel used gas tanks with a total volume of 30 m3that allows you to accommodate all the fuel from the tank of liquid hydrogen in a gaseous state at operating pressures up to 100 MPa. Such high pressure gaseous hydrogen allows a user to use the capacity of NAC is petela-gasifier smaller and to fill the hydrogen tanks for vehicles.

The pump, which supplies liquid hydrogen, centrifugal, single-stage - provides output pressure of 3 MPa and a flow rate of 5 kg/s These parameters allow the flow of liquid hydrogen in the drive-gasifier faster than can occur gasification of the liquid due to the heat capacity of the walls and the external heat supply from the environment. When the circumferential speed of the centrifugal wheel single-stage pump will not exceed 250-270 m/s wheel speed 25000 rpm and the power required to drive the pump is not more than 300 kW in size its efficiency is 75%.

Turbine - axial two-stage operating on gaseous hydrogen, has a degree of reduction of the total pressure is equal to 2, which allows it to give the required power when the value of efficiency is 75% and the consumption of hydrogen (with the temperature before the turbine 250) not more than 13% of the flow of liquid hydrogen through the pump; circumferential speed on the average diameter of turbine wheels is equal to 210 m/s Outer diametral dimensions of the pump and turbine close and approximately 200 mm

Hydrogen tank with a pressure of 1.5 MPa contains 200 kg of hydrogen gas and its volume is 120 m3.

Refill empty containers of the drive-gasifier liquid hydrogen at specified parameters of the system takes no more than 5 mine is, the pressure of gas at the end of the filling within the specified time is always less than the magnitude of the pressure, which can ensure the pump. Increasing the pressure of the hydrogen gas to the calculated value of 80-100 MPa is carried out by heating hydrogen in the containers to a temperature T≤350 To heat the exhaust gas using the ejector. This pressure is set less than two days when heated drive-gasifier with a temperature of 310 To and through the day - when heated with a temperature of 350 K.

Calculations show that with increasing ambient temperature up to +45°C power PAES-2500 is 1755 kW and an efficiency of 20%; declare the same grid at the same temperature environment provides the total capacity 2210 kW motor efficiency 21.6%, 26% more capacity than the original GT, and 8% greater efficiency of the gas turbine engine.

Thus, the present invention allows to significantly improve the efficiency and sustainability of the energy system.

Energy system may be of particular interest to the Autonomous supply of electricity with high efficiency and environment of the places where there is industrial consumption of liquid hydrogen, for example in the centers of the test liquid propellant rocket engines, as well as in cities with developed a fleet of electric vehicles, yspolzuyuschayasya elements while generating electricity for the needs of the vehicle. In addition, hydrogen gas of high pressure is of interest in the introduction of hydrogen-oxygen steam generator, developed at the Joint Institute for high temperatures Russian Academy of Sciences.

1. The combined power system containing a gas turbine engine, mechanical shaft connected with the motor generator and the source of cold air associated gazodinamichesky with the engine inlet, characterized in that the system further comprises a device for preparation and supply of gaseous hydrogen into the engine, which includes a tank of liquid hydrogen pump liquid hydrogen driven, suction and discharge piping with shutoff valve, heater, made in the form of a closed cavity, the drive-gasifier liquid hydrogen made in the form of containers and placed in the cavity of the heater, and an exhaust manifold, comprising gasovod with shut-off valve, dual-fuel burners in the combustion chamber of the engine, the outlet shutoff valve and the pressure reducer, where the pump inlet through the suction pipe with shut-off valve connected to the tank of liquid hydrogen, and exit through the discharge pipe with a shut - off valve to the input of the drive-gasifier, the output of the drive-gasifier through an outlet shutoff valve and the pressure reducer with the Dinan with dual-fuel burners of the combustion chamber, gasovod associated gazodinamichesky input with motor output, and output, through a check valve with the atmosphere.

2. The combined system according to claim 1, characterized in that the heater is made in the form of waste heat of exhaust gases of a gas turbine engine, and the exhaust manifold may further comprise gasovod exchanger with shutoff valve, and gasovod exchanger gazodinamichesky input connected with the output of the engine, and exit through the shutoff valve and the inner cavity of the heat exchanger with the atmosphere, the internal cavity of the heat exchanger related to heat storage-gasifier.

3. The combined system according to claim 1, characterized in that the source of cold air contains a source of compressed air, the turboexpander and mechanically associated with it on the shaft an additional electric generator, and a source of compressed air through the turboexpander gazodinamichesky associated with the intake of the engine.

4. The combined system according to claim 1, characterized in that the feed pump liquid hydrogen executed centrifugal.

5. The combined system according to claim 1, characterized in that the pump drive is made in the form of an electric motor.

6. The combined system according to claim 1, characterized in that the drive of the pump is made in the form of turbine.

7. The combined system according to claim 6, characterized in that the pump and turbine sleep who wife magnetic bearings with an electronic control system.

8. The combined system according to claim 6, characterized in that the turbine gazodinamichesky input is connected through a check valve with a compressed air source, and the output is with the atmosphere.

9. The combined system according to claim 6, characterized in that the turbine is equipped with a separate system for the preparation and submission of a working body, including gasifier, gas valve, gas pressure regulator, high pressure gas pipeline, a gas pipeline of low pressure hydrogen tank, where the gasifier hydraulically input connected with the output of the pump, and the output gazodinamichesky through the high pressure gas pipeline and the gas pressure regulator is connected with the turbine inlet, the outlet of the turbine through the low-pressure gas pipeline and the gas valve is connected with a hydrogen capacity.

10. The combined system according to claim 9, characterized in that the exhaust manifold further comprises gasovod gasifier with shut-off valve, where the gasifier gazodinamichesky and heat input connected with the output of the engine through gasovod gasifier and the shut-off valve, and the output is with the atmosphere.

11. The combined system according to claim 9, characterized in that the hydrogen tank is made of at least two containers connected.

12. The combined system according to claim 9, characterized in that the hydrogen capacity is drive-gasifier, while the output Turmenistan through the low-pressure gas pipeline with the output of the drive-gasifier.

13. The combined system according to claim 1, characterized in that the drive-gasifier made at least two containers connected.

14. The combined system according to claim 1, characterized in that the reservoir of liquid hydrogen is made in the form of a transport container.

15. The combined system according to claim 1, characterized in that the dual-fuel burners of the combustion chamber contain a separate contours of the filing of the regular fuel gas turbine engine, gaseous hydrogen and air.

16. The combined system according to claim 2, characterized in that it further comprises an ejector with a gas and air inlets, and the ejector is located at the junction of the output gazivoda exchanger with an internal cavity of the heat exchanger, where the output gazivoda exchanger into the cavity of the exchanger is made in the form of a gas inlet of the ejector, and the air inlet of the ejector is connected with the atmosphere.

17. The combined system according to claim 1, characterized in that the drive-gasifier further comprises a connecting device for power supply of consumers of hydrogen gas, for example gas tanks of cars.

18. The combined system according to claim 9, characterized in that the hydrogen tank further comprises a connecting device for power supply of consumers of hydrogen gas, for example burners of the combustion chambers (the country : Russia the s engines fuel cells or hydrogen-oxygen steam generators.



 

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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

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

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

FIELD: power engineering.

SUBSTANCE: combined power system comprises a gas-turbine engine, a power generator mechanically joined by a shaft with the engine and a source of cold air connected in a gas-dynamic manner with the inlet to the engine. The system additionally comprises a device to prepare and to supply gaseous hydrogen into the engine, which includes a reservoir of liquid hydrogen, a pump of liquid hydrogen supply with a drive, suction and discharge pipelines with stop valves, a heater, an accumulator-gasifier of liquid hydrogen, and also an exhaust header comprising a gas duct with a stop valve, double-fuel burners in an engine combustion chamber, an outlet stop valve and a pressure reducer. The pump at the inlet via a suction pipeline with a stop valve is connected to a liquid hydrogen reservoir, and at the outlet - via a discharge pipeline with a stop valve to the inlet of the accumulator-gasifier. The accumulator-gasifier outlet via an outlet stop valve and a pressure reducer is connected with double-fuel burners of the combustion chamber. The gas duct is connected in a gas-dynamic manner by its inlet to the engine outlet, and by its outlet - via a stop valve - to atmosphere. The heater is arranged in the form of a closed cavity. The liquid hydrogen accumulator-gasifier is arranged in the form of a reservoir and is placed in the heater's cavity.

EFFECT: stable production of power of guaranteed level in a wide temperature range of atmospheric air with lower emission of hazardous admixtures with an exhaust gas.

18 cl, 6 dwg

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