WO2022193796A1 - 双燃料联合循环动力装置 - Google Patents

双燃料联合循环动力装置 Download PDF

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Publication number
WO2022193796A1
WO2022193796A1 PCT/CN2022/000046 CN2022000046W WO2022193796A1 WO 2022193796 A1 WO2022193796 A1 WO 2022193796A1 CN 2022000046 W CN2022000046 W CN 2022000046W WO 2022193796 A1 WO2022193796 A1 WO 2022193796A1
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Prior art keywords
heating furnace
channel
evaporator
combustion chamber
condenser
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PCT/CN2022/000046
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English (en)
French (fr)
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李华玉
李鸿瑞
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李华玉
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Publication of WO2022193796A1 publication Critical patent/WO2022193796A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion

Definitions

  • the invention belongs to the technical field of combined cycle thermodynamics.
  • Fuel is an important option for building high-temperature heat sources, with different types and properties; the temperature of the gas formed by the combustion of fuel directly determines the heat-to-work efficiency. Due to the limitation of one or more factors such as working principle, working medium properties, material properties, equipment and other components manufacturing level, etc., in thermal devices using high-grade fuel, there is a large temperature difference in the combustion process and irreversible loss of fuel, resulting in fuel loss. Waste - This presents an opportunity for low-grade fuels to participate in building heat sources.
  • the thermal efficiency of the power plant based on a single thermodynamic cycle is low, and the loss of thermal power is large; therefore, it is necessary to construct a combined cycle to improve the thermal efficiency of the thermal power plant.
  • the loss of temperature difference in the exothermic process is small, the loss of temperature difference between the circulating working fluid and the heat source is large, and the thermal efficiency is low;
  • the thermal power plant based on the Brayton cycle theory There is often a contradiction that is difficult to reconcile between its power, thermal efficiency and the boost ratio of the compression process.
  • the present invention provides low-grade fuel and high-grade fuel to be used in combination, realizes learning from each other's strengths and complements each other's advantages, greatly improves the utilization value of low-grade fuel, and has high thermal efficiency. , Direct-fired dual-fuel combined cycle power plant with strong safety and flexible power matching.
  • the main purpose of the present invention is to provide a dual-fuel combined cycle power plant, and the specific content of the invention is described as follows:
  • the dual-fuel combined cycle power plant is mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser and evaporator; there are low-grade fuel channels and heating furnace outside Connected, the external air channel is connected to the heating furnace through the heat source regenerator, the heating furnace also has a gas channel connected to the outside through the heat source regenerator, and the external high-grade fuel channel is connected to the combustion chamber; the condenser has a condensate pipe After the booster pump is connected to the evaporator, the evaporator has a steam channel that is connected to the steam turbine through the heating furnace and the combustion chamber.
  • the combustion chamber and the gas channel are connected with the gas turbine, the gas turbine and the gas channel are connected with the outside through the evaporator; the condenser and the cooling medium channel are connected with the outside, the gas turbine is connected with the compressor and transmits power, forming a dual-fuel combination Cyclic powerplant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; there are low-grade external
  • the fuel channel is communicated with the heating furnace, the external air channel is communicated with the heating furnace through the heat source regenerator, the heating furnace has a gas channel communicated with the outside through the heat source regenerator, and the external high-grade fuel channel is communicated with the combustion chamber; condensation
  • the evaporator has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam channel that communicates with the steam turbine through the heating furnace and the combustion chamber.
  • the steam turbine also has a low-pressure steam channel that communicates with the condenser through the evaporator.
  • the compressor, the high temperature regenerator and the heating furnace are communicated with the combustion chamber, and the combustion chamber and the gas passage are communicated with the gas turbine, and the gas turbine and the gas passage are communicated with the outside through the high temperature regenerator and the evaporator; Externally connected, the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle power plant is mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator;
  • the fuel channel is communicated with the heating furnace, the external air channel is communicated with the heating furnace through the heat source regenerator, the heating furnace has a gas channel communicated with the outside through the heat source regenerator, and the external high-grade fuel channel is communicated with the combustion chamber; condensation
  • the evaporator has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam channel that communicates with the steam turbine through the heating furnace and the combustion chamber.
  • the steam turbine also has a low-pressure steam channel that communicates with the condenser through the evaporator.
  • the compressor, the high temperature regenerator and the heating furnace are connected with the combustion chamber, the combustion chamber and the gas channel are connected with the gas turbine, and then the gas turbine has a gas channel connected with itself through the high temperature regenerator, and the gas turbine and the gas channel are connected with the outside through the evaporator.
  • the condenser and the cooling medium channel are communicated with the outside, and the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; there are low-grade external
  • the fuel channel is communicated with the heating furnace, the external air channel is communicated with the heating furnace through the heat source regenerator, the heating furnace has a gas channel communicated with the outside through the heat source regenerator, and the external high-grade fuel channel is communicated with the combustion chamber; condensation
  • the evaporator has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam channel that communicates with the steam turbine through the heating furnace and the combustion chamber.
  • the steam turbine also has a low-pressure steam channel that communicates with the condenser through the evaporator.
  • the compressor After the compressor is connected, the compressor has an air channel that communicates with itself through the high temperature regenerator, the compressor and the air channel are connected to the combustion chamber through the heating furnace, the combustion chamber and the gas channel are connected to the gas turbine, and the gas turbine and the gas channel are connected to the gas turbine through the high temperature.
  • the regenerator and the evaporator communicate with the outside; the condenser and the cooling medium channel communicate with the outside; the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; there are low-grade external
  • the fuel channel is communicated with the heating furnace, the external air channel is communicated with the heating furnace through the heat source regenerator, the heating furnace has a gas channel communicated with the outside through the heat source regenerator, and the external high-grade fuel channel is communicated with the combustion chamber; condensation
  • the evaporator has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam channel that communicates with the steam turbine through the heating furnace and the combustion chamber.
  • the steam turbine also has a low-pressure steam channel that communicates with the condenser through the evaporator.
  • the compressor After the compressor is connected, the compressor has an air channel that communicates with itself through the high-temperature regenerator, the compressor and the air channel are connected to the combustion chamber through the heating furnace, and the combustion chamber and the gas channel are connected to the gas turbine.
  • the regenerator communicates with itself, the gas turbine and the gas channel communicate with the outside through the evaporator; the condenser and the cooling medium channel communicate with the outside, the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; there are low-grade external
  • the fuel channel is communicated with the heating furnace, the external air channel is communicated with the heating furnace through the heat source regenerator, the heating furnace has a gas channel communicated with the outside through the heat source regenerator, and the external high-grade fuel channel is communicated with the combustion chamber; condensation
  • the evaporator has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam channel that communicates with the steam turbine through the heating furnace and the combustion chamber.
  • the steam turbine also has a low-pressure steam channel that communicates with the condenser through the evaporator.
  • the compressor, the heating furnace and the high temperature regenerator are connected to the combustion chamber, and the combustion chamber and the gas channel are connected to the gas turbine.
  • the gas turbine has a gas channel to communicate with itself through the high temperature regenerator, and the gas turbine and the gas channel are connected to the outside through the evaporator.
  • the condenser and the cooling medium channel are communicated with the outside, and the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser and evaporator; external high-grade fuel is connected to the heating furnace , the external air channel is connected with the heating furnace through the heat source regenerator, the heating furnace also has a gas channel connected with the outside through the heat source regenerator, and the external low-grade fuel channel is connected with the combustion chamber; the condenser has a condensate pipeline.
  • the booster pump is connected to the evaporator
  • the evaporator has a steam passage that is connected to the steam turbine through the combustion chamber and the heating furnace.
  • the steam turbine also has a low-pressure steam passage that communicates with the condenser through the evaporator; an external air passage is connected to the combustion chamber through the compressor. , the combustion chamber and the gas channel are connected to the gas turbine through the heating furnace, the gas turbine and the gas channel are connected to the outside through the evaporator; the condenser and the cooling medium channel are connected to the outside, and the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle powerplant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator;
  • the fuel is communicated with the heating furnace, the external air channel is connected with the heating furnace through the heat source regenerator, the heating furnace has a gas channel connected with the outside through the heat source regenerator, and the external low-grade fuel channel is communicated with the combustion chamber;
  • the condenser After the condensate pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the steam turbine through the combustion chamber and the heating furnace, and the steam turbine also has a low-pressure steam channel connected with the condenser through the evaporator.
  • the engine and the high temperature regenerator are connected with the combustion chamber, the combustion chamber and the gas channel are connected with the gas turbine through the heating furnace, the gas turbine and the gas channel are connected with the outside through the high temperature regenerator and the evaporator; the condenser and the cooling medium channel are connected with the outside Connected, the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; external high-grade The fuel is communicated with the heating furnace, the external air channel is connected with the heating furnace through the heat source regenerator, the heating furnace has a gas channel connected with the outside through the heat source regenerator, and the external low-grade fuel channel is communicated with the combustion chamber; the condenser After the condensate pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the steam turbine through the combustion chamber and the heating furnace, and the steam turbine also has a low-pressure steam channel connected with the condenser through the evaporator.
  • the gas turbine and the high temperature regenerator are connected with the combustion chamber, the combustion chamber and the gas channel are connected with the gas turbine through the heating furnace, and then the gas turbine is connected with itself through the high temperature regenerator, and the gas turbine and the gas channel are connected with the outside through the evaporator;
  • the condenser also has a cooling medium channel to communicate with the outside, and the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; external high-grade The fuel is communicated with the heating furnace, the external air channel is connected with the heating furnace through the heat source regenerator, the heating furnace has a gas channel connected with the outside through the heat source regenerator, and the external low-grade fuel channel is communicated with the combustion chamber; the condenser After the condensate pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the steam turbine through the combustion chamber and the heating furnace, and the steam turbine also has a low-pressure steam channel connected with the condenser through the evaporator.
  • the compressor After the engine is connected, the compressor has an air channel that communicates with itself through the high-temperature regenerator, the compressor also has an air channel that communicates with the combustion chamber, and the combustion chamber and a gas channel are connected to the gas turbine through the heating furnace.
  • the heater and the evaporator communicate with the outside; the condenser and the cooling medium channel communicate with the outside; the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; external high-grade The fuel is communicated with the heating furnace, the external air channel is connected with the heating furnace through the heat source regenerator, the heating furnace has a gas channel connected with the outside through the heat source regenerator, and the external low-grade fuel channel is communicated with the combustion chamber; the condenser After the condensate pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the steam turbine through the combustion chamber and the heating furnace, and the steam turbine also has a low-pressure steam channel connected with the condenser through the evaporator.
  • the compressor After the engine is connected, the compressor has an air channel that communicates with itself through the high-temperature regenerator, the compressor has an air channel that communicates with the combustion chamber, and the combustion chamber and a gas channel are connected to the gas turbine through the heating furnace.
  • the heater communicates with itself, the gas turbine and the gas channel communicate with the outside through the evaporator; the condenser and the cooling medium channel communicate with the outside, the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of compressor, gas turbine, steam turbine, booster pump, heating furnace, combustion chamber, heat source regenerator, condenser, evaporator and high temperature regenerator; there are high-grade external
  • the fuel is communicated with the heating furnace, the external air channel is connected with the heating furnace through the heat source regenerator, the heating furnace has a gas channel connected with the outside through the heat source regenerator, and the external low-grade fuel channel is communicated with the combustion chamber;
  • the condenser After the condensate pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the steam turbine through the combustion chamber and the heating furnace, and the steam turbine also has a low-pressure steam channel connected with the condenser through the evaporator.
  • the gas turbine is connected with the combustion chamber, the combustion chamber and the gas channel are connected with the gas turbine through the high temperature regenerator and the heating furnace, and then the gas turbine is connected with itself through the high temperature regenerator, and the gas turbine and the gas channel are connected with the outside through the evaporator;
  • the condenser also has a cooling medium channel to communicate with the outside, and the gas turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle power plant is any one of the dual-fuel combined cycle power plants described in items 1-12, adding an expansion speed-up machine and replacing the steam turbine, adding a diffuser pipe and replacing the booster pump, forming a dual-fuel combined cycle power plant. Fuel combined cycle power plant.
  • Fig. 1/13 is a first principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Figure 2/13 is a second principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 3/13 is the third principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Figure 4/13 is a fourth principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 5/13 is the fifth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 6/13 is the sixth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 7/13 is the seventh principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 8/13 is the eighth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 9/13 is the ninth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • 10/13 is a tenth principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • 11/13 is an eleventh principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 12/13 is a twelfth principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 13/13 is a thirteenth principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • 1-compressor 2-gas turbine, 3-steam turbine, 4-boost pump, 5-heating furnace, 6-combustion chamber, 7-heat source regenerator, 8-condenser, 9-evaporator (waste heat boiler), 10-high temperature regenerator, 11-expansion speed increaser, 12-diffuser.
  • Low-grade fuel refers to the fuel with a relatively low maximum temperature (such as adiabatic combustion temperature or constant-pressure combustion temperature) that can be formed by combustion products; compared with high-quality coal, coal gangue, coal slime, etc. are low-grade fuel. From the concept of heat source, low-grade fuel refers to fuel whose combustion products are difficult to form a high-temperature heat source with higher temperature.
  • High-grade fuel refers to fuel with a relatively high highest temperature (such as adiabatic combustion temperature or constant-pressure combustion temperature) that can be formed by combustion products; compared with coal gangue, coal slime and other fuels, high-quality coal, Natural gas, methane, hydrogen, etc. are all high-grade fuels. From the concept of heat source, high-grade fuel refers to fuel whose combustion products can form a high-temperature heat source with higher temperature.
  • the gaseous substances of the combustion products are the core of the heat source and are an important part of the thermal system; while the solid substances in the combustion products, such as waste residue, can be utilized in the heat energy contained in them (utilization process and equipment). It is discharged after being contained in the heating furnace or preheated outside the heating furnace body), and is not listed separately, and its function is not described separately.
  • the outside also has an air channel that communicates with the heating furnace 5 through the heat source regenerator 7,
  • the heating furnace 5 also has a gas channel that communicates with the outside through the heat source regenerator 7, and the outside also has a high-grade fuel channel that communicates with the combustion chamber 6; the condenser 8.
  • the condensate pipeline connected with the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam channel connected with the steam turbine 3 through the heating furnace 5 and the combustion chamber 6.
  • the steam turbine 3 also has a low-pressure steam channel through the evaporator 9 and condensate.
  • the external air passage is connected with the combustion chamber 6 through the compressor 1 and the heating furnace 5, the combustion chamber 6 also has a gas passage connected with the gas turbine 2, and the gas turbine 2 also has a gas passage connected with the outside through the evaporator 9; the condenser 8
  • the external air flows through the heat source regenerator 7 and then enters the heating furnace 5 to participate in the combustion, and the external low-grade fuel enters the heating furnace 5, and the low-grade fuel and air are mixed in the heating furnace 5 and burned into relatively High-temperature gas, the gas in the heating furnace 5 releases heat to the steam and compressed air flowing through it and cools it down, and then flows through the heat source regenerator 7 to release heat to cool down and discharge to the outside; the external air flows through the compressor 1 to raise the pressure After the heating furnace 5 absorbs heat and heats up, it enters the combustion chamber 6 to participate in the combustion, the external high-grade fuel enters the combustion chamber 6, and the high-grade fuel and the compressed air are mixed in the combustion chamber 6 and burned into high-pressure high-temperature gas.
  • the high-temperature gas After the high-temperature gas releases heat from the steam, it enters the gas turbine 2 to decompress and perform work, and the gas discharged from the gas turbine 2 flows through the evaporator 9 to release heat and cool down and then discharge to the outside; the condensate of the condenser 8 is boosted by the booster pump 4 and then enters the evaporator 9.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7.
  • the condenser 8 has a condensate pipeline that is connected to the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam channel to communicate with the steam turbine 3 through the heating furnace 5 and the combustion chamber 6, and the steam turbine 3 also has a low-pressure steam channel through the heating furnace 5 and the combustion chamber 6.
  • the evaporator 9 is communicated with the condenser 8; the external air passage is communicated with the combustion chamber 6 through the compressor 1, the high temperature regenerator 10 and the heating furnace 5, and the combustion chamber 6 also has a gas passage communicated with the gas turbine 2, and the gas turbine 2 also has gas
  • the passage communicates with the outside through the high temperature regenerator 10 and the evaporator 9; the condenser 8 and the cooling medium passage communicate with the outside, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the gas discharged from the gas turbine 2 flows through the high temperature regenerator 10 and the evaporator 9 to gradually release heat and cool down and then discharge to the outside, forming a dual-fuel combined cycle power plant.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7.
  • the condenser 8 has a condensate pipeline that is connected to the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam channel to communicate with the steam turbine 3 through the heating furnace 5 and the combustion chamber 6, and the steam turbine 3 also has a low-pressure steam channel through the heating furnace 5 and the combustion chamber 6.
  • the evaporator 9 is communicated with the condenser 8; the external air channel is communicated with the combustion chamber 6 through the compressor 1, the high temperature regenerator 10 and the heating furnace 5, and the combustion chamber 6 also has a gas channel and is communicated with the gas turbine 2.
  • the gas turbine 2 After the gas turbine 2 is connected with gas
  • the channel communicates with itself through the high temperature regenerator 10, the gas turbine 2 and the gas channel communicate with the outside through the evaporator 9; the condenser 8 and the cooling medium channel communicate with the outside, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the difference is: the external air flows through the compressor 1 to increase the pressure and temperature, and flows through the high-temperature regenerator 10 and the heating furnace 5. After gradually absorbing heat and heating up, it enters the combustion chamber 6 to participate in the combustion, the external high-grade fuel enters the combustion chamber 6, the high-grade fuel and the compressed air are mixed in the combustion chamber 6 and burned into high-pressure high-temperature gas, and the high-temperature gas in the combustion chamber 6 releases heat to the steam After that, it is supplied to the gas turbine 2; the gas entering the gas turbine 2 is depressurized to a certain degree and then flows through the high temperature regenerator 10 to release heat and cool down, and enters the gas turbine 2 to continue depressurization and work, and the gas discharged from the gas turbine 2 flows through the evaporator 9 to release heat. After cooling, it is discharged to the outside to form a dual-fuel combined cycle power plant.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7.
  • the condenser 8 has a condensate pipeline that is connected to the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam channel to communicate with the steam turbine 3 through the heating furnace 5 and the combustion chamber 6, and the steam turbine 3 also has a low-pressure steam channel through the heating furnace 5 and the combustion chamber 6.
  • the evaporator 9 is communicated with the condenser 8; there is an external air channel that is communicated with the compressor 1, and then the compressor 1 has an air channel that communicates with itself through the high temperature regenerator 10, and the compressor 1 also has an air channel that communicates with the combustion chamber through the heating furnace 5.
  • the combustion chamber 6 also has a gas channel that communicates with the gas turbine 2
  • the gas turbine 2 also has a gas channel that communicates with the outside through the high temperature regenerator 10 and the evaporator 9
  • the condenser 8 also has a cooling medium channel that communicates with the outside, and the gas turbine 2 is connected Compressor 1 and transmit power.
  • the dual-fuel combined cycle powerplant shown in Figure 5/13 is implemented as follows:
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7.
  • the condenser 8 has a condensate pipeline that is connected to the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam channel to communicate with the steam turbine 3 through the heating furnace 5 and the combustion chamber 6, and the steam turbine 3 also has a low-pressure steam channel through the heating furnace 5 and the combustion chamber 6.
  • the evaporator 9 is communicated with the condenser 8; there is an external air channel that is communicated with the compressor 1, and then the compressor 1 has an air channel that communicates with itself through the high temperature regenerator 10, and the compressor 1 also has an air channel that communicates with the combustion chamber through the heating furnace 5.
  • 6 is connected, and the combustion chamber 6 also has a gas channel to communicate with the gas turbine 2.
  • the gas turbine 2 After the gas turbine 2 has a gas channel to communicate with itself through the high temperature regenerator 10, the gas turbine 2 also has a gas channel to communicate with the outside through the evaporator 9; the condenser 8 also has a The cooling medium passage communicates with the outside, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7.
  • the condenser 8 has a condensate pipeline that is connected to the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam channel to communicate with the steam turbine 3 through the heating furnace 5 and the combustion chamber 6, and the steam turbine 3 also has a low-pressure steam channel through the heating furnace 5 and the combustion chamber 6.
  • the evaporator 9 is communicated with the condenser 8; the external air passage is communicated with the combustion chamber 6 through the compressor 1, the heating furnace 5 and the high temperature regenerator 10, and the combustion chamber 6 also has a gas passage and is communicated with the gas turbine 2.
  • the gas turbine 2 After the gas turbine 2 is connected with gas
  • the channel communicates with itself through the high temperature regenerator 10, the gas turbine 2 and the gas channel communicate with the outside through the evaporator 9; the condenser 8 and the cooling medium channel communicate with the outside, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the difference is: the external air flows through the compressor 1 to increase the pressure and temperature, and flows through the heating furnace 5 and the high-temperature regenerator 10. After gradually absorbing heat and heating up, it enters the combustion chamber 6 to participate in the combustion, the external high-grade fuel enters the combustion chamber 6, the high-grade fuel and the compressed air are mixed in the combustion chamber 6 and burned into high-pressure high-temperature gas, and the high-temperature gas in the combustion chamber 6 releases heat to the steam After that, it is supplied to the gas turbine 2; the gas entering the gas turbine 2 is depressurized to a certain degree and then flows through the high temperature regenerator 10 to release heat and cool down, and enters the gas turbine 2 to continue depressurization and work, and the gas discharged from the gas turbine 2 flows through the evaporator 9 to release heat. After cooling, it is discharged to the outside to form a dual-fuel combined cycle power plant.
  • the steam turbine 3 also has a low-pressure steam passage through the evaporator 9 and the condenser. 8 is communicated; external air passage is communicated with combustion chamber 6 through compressor 1, combustion chamber 6 also has gas passage communicated with gas turbine 2 through heating furnace 5, gas turbine 2 also has gas passage communicated with the outside through evaporator 9; condenser 8 There is also a cooling medium passage that communicates with the outside, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the external high-grade fuel enters the heating furnace 5, and the external air flows into the heating furnace 5 to participate in the combustion after the heat source regenerator 7 absorbs heat and heats up, and the high-grade fuel and air are mixed in the heating furnace 5 and burned to a high temperature Gas, the high-temperature gas of the heating furnace 5 releases heat to the steam and gas flowing through it and cools down, and then flows through the heat source regenerator 7 to release heat to cool down and discharge to the outside; the external low-grade fuel enters the combustion chamber 6, and the external air flows through After the compressor 1 is boosted and heated up, it enters the combustion chamber 6 and participates in the combustion.
  • the low-grade fuel and the compressed air are mixed in the combustion chamber 6 and burned into a higher temperature gas; the gas in the combustion chamber 6 flows through the heating furnace 5 after releasing heat from the steam. Absorb heat, and then enter the gas turbine 2 to depressurize and perform work, and the gas discharged from the gas turbine 2 flows through the evaporator 9 to release heat and cool down and then discharge to the outside; The temperature rises and vaporizes, flows through the combustion chamber 6 and the heating furnace 5 and gradually absorbs heat and raises the temperature, flows through the steam turbine 3 to depressurize and performs work, flows through the evaporator 9 to release heat and cool down, and then enters the condenser 8 to release heat and condense; high-grade fuel and Low-grade fuel provides driving heat load through combustion, and the cooling medium takes away low-temperature heat load through condenser 8; gas turbine 2 and steam turbine 3 provide power to compressor 1 and the outside, or gas turbine 2 and steam turbine 3 supply compressor 1 and booster pump 4 and externally provide power to form a dual
  • the heating furnace 5 is communicated with the outside, and there is an air channel outside that is communicated with the heating furnace 5 through the heat source regenerator 7.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7, and there is a low-grade fuel channel outside the combustion chamber 6.
  • the condenser 8 has a condensate pipeline connected with the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam passage connected with the steam turbine 3 through the combustion chamber 6 and the heating furnace 5, and the steam turbine 3 also has a low-pressure steam passage through the evaporation.
  • the condenser 9 is communicated with the condenser 8; the external air channel is communicated with the combustion chamber 6 through the compressor 1 and the high temperature regenerator 10, and the combustion chamber 6 also has a gas channel communicated with the gas turbine 2 through the heating furnace 5, and the gas turbine 2 also has a gas channel. It communicates with the outside through the high temperature regenerator 10 and the evaporator 9; the condenser 8 and the cooling medium channel communicate with the outside, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the difference is: the external air flows through the compressor 1 to increase the pressure and temperature, and the high-temperature regenerator 10 absorbs heat to increase the temperature. Then enter the combustion chamber 6 to participate in the combustion; the external low-grade fuel enters the combustion chamber 6, and the low-grade fuel and the compressed air are mixed in the combustion chamber 6 and burned into a higher temperature gas; the gas in the combustion chamber 6 releases heat and flows through the steam.
  • the heating furnace 5 absorbs heat, and then enters the gas turbine 2 to depressurize and perform work.
  • the gas discharged from the gas turbine 2 flows through the high temperature regenerator 10 and the evaporator 9 to gradually release heat and cool down and then discharge to the outside, forming a dual-fuel combined cycle power plant.
  • the heating furnace 5 is communicated with the outside, and there is an air channel outside that is communicated with the heating furnace 5 through the heat source regenerator 7.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7, and there is a low-grade fuel channel outside the combustion chamber 6.
  • the condenser 8 has a condensate pipeline connected with the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam passage connected with the steam turbine 3 through the combustion chamber 6 and the heating furnace 5, and the steam turbine 3 also has a low-pressure steam passage through the evaporation.
  • the condenser 9 is communicated with the condenser 8; the external air channel is communicated with the combustion chamber 6 through the compressor 1 and the high temperature regenerator 10, and the combustion chamber 6 also has a gas channel connected with the gas turbine 2 through the heating furnace 5.
  • the gas turbine 2 After the gas turbine 2 has a gas channel
  • the gas turbine 2 communicates with itself through the high temperature regenerator 10, and the gas turbine 2 also communicates with the outside through the evaporator 9; the condenser 8 also communicates with the outside through the cooling medium channel, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the heating furnace 5 absorbs heat, and then provides it to the gas turbine 2; the gas entering the gas turbine 2 is depressurized to a certain extent and then flows through the high temperature regenerator 10 to release heat and cool down, and enters the gas turbine 2 to continue depressurization and work; the gas flow discharged by the gas turbine 2 After the evaporator 9 releases heat and cools down, it is discharged to the outside to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle powerplant shown in Figure 10/13 is implemented as follows:
  • the heating furnace 5 is communicated with the outside, and there is an air channel outside that is communicated with the heating furnace 5 through the heat source regenerator 7.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7, and there is a low-grade fuel channel outside the combustion chamber 6.
  • the condenser 8 has a condensate pipeline connected with the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam passage connected with the steam turbine 3 through the combustion chamber 6 and the heating furnace 5, and the steam turbine 3 also has a low-pressure steam passage through the evaporation.
  • the condenser 9 is communicated with the condenser 8; there is an external air channel that is communicated with the compressor 1, and then the compressor 1 has an air channel that communicates with itself through the high temperature regenerator 10, and the compressor 1 also has an air channel that communicates with the combustion chamber 6, and the combustion chamber 6 There is also a gas channel that communicates with the gas turbine 2 through the heating furnace 5, and the gas turbine 2 also has a gas channel that communicates with the outside through the high temperature regenerator 10 and the evaporator 9; the condenser 8 also has a cooling medium channel that communicates with the outside, and the gas turbine 2 is connected to the compressor. machine 1 and transmit power.
  • the difference is that the external air flows through the compressor 1 to be boosted and heated to a certain level, and then flows through the high-temperature regenerator 10 to absorb Heat up, enter the compressor 1 and continue to increase the pressure and heat up, and then enter the combustion chamber 6 to participate in the combustion; the external low-grade fuel enters the combustion chamber 6, and the low-grade fuel and the compressed air are mixed in the combustion chamber 6 and burned into higher-temperature fuel gas; After the gas in the combustion chamber 6 releases heat from the steam, it flows through the heating furnace 5 to absorb heat, and then enters the gas turbine 2 to depressurize and perform work. , forming a dual-fuel combined cycle power plant.
  • the heating furnace 5 is communicated with the outside, and there is an air channel outside that is communicated with the heating furnace 5 through the heat source regenerator 7.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7, and there is a low-grade fuel channel outside the combustion chamber 6.
  • the condenser 8 has a condensate pipeline connected with the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam passage connected with the steam turbine 3 through the combustion chamber 6 and the heating furnace 5, and the steam turbine 3 also has a low-pressure steam passage through the evaporation.
  • the condenser 9 is communicated with the condenser 8; there is an external air channel that is communicated with the compressor 1, and then the compressor 1 has an air channel that communicates with itself through the high temperature regenerator 10, and the compressor 1 also has an air channel that communicates with the combustion chamber 6, and the combustion chamber 6. There is also a gas channel connected to the gas turbine 2 through the heating furnace 5.
  • the gas turbine 2 After the gas turbine 2 has a gas channel to communicate with itself through the high temperature regenerator 10, the gas turbine 2 also has a gas channel to communicate with the outside through the evaporator 9;
  • the condenser 8 also has a cooling
  • the medium passage communicates with the outside, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the dual-fuel combined cycle power plant shown in Figure 12/13 is implemented as follows:
  • the heating furnace 5 is communicated with the outside, and there is an air channel outside that is communicated with the heating furnace 5 through the heat source regenerator 7.
  • the heating furnace 5 also has a gas channel communicated with the outside through the heat source regenerator 7, and there is a low-grade fuel channel outside the combustion chamber 6.
  • the condenser 8 has a condensate pipeline connected with the evaporator 9 through the booster pump 4, and then the evaporator 9 has a steam passage connected with the steam turbine 3 through the combustion chamber 6 and the heating furnace 5, and the steam turbine 3 also has a low-pressure steam passage through the evaporation.
  • the condenser 9 is communicated with the condenser 8; the external air channel is communicated with the combustion chamber 6 through the compressor 1, and the combustion chamber 6 also has a gas channel connected with the gas turbine 2 through the high temperature regenerator 10 and the heating furnace 5.
  • the gas turbine 2 After the gas turbine 2 has a gas channel
  • the gas turbine 2 communicates with itself through the high temperature regenerator 10, and the gas turbine 2 also communicates with the outside through the evaporator 9; the condenser 8 also communicates with the outside through the cooling medium channel, and the gas turbine 2 is connected to the compressor 1 and transmits power.
  • the heat is supplied to the gas turbine 2; the gas entering the gas turbine 2 is depressurized to a certain degree and then flows through the high temperature regenerator 10 to release heat and cool down, and enters the gas turbine 2 to continue depressurization and work; the gas discharged from the gas turbine 2 flows through the evaporator 9 After releasing heat and cooling, it is discharged to the outside to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle powerplant shown in Figure 13/13 is implemented as follows:
  • Low-grade fuel can be used or helpful to reduce the compression ratio of the top gas power cycle system, increase the flow rate of the gas cycle working medium, and is conducive to the construction of a large-load combined cycle power plant.
  • the direct combustion method has no heat transfer loss due to temperature difference, and the indirect method has less heat loss temperature difference, which is beneficial to improve thermal efficiency and device safety.
  • An independent steam turbine is set in the bottom circulation, and the flow rate of the working medium and the power of the steam turbine can be selected flexibly, and the power matching range is large.
  • the bottom cycle can work in subcritical, critical, supercritical or ultra-supercritical state, and obtain reasonable thermal variable power efficiency.
  • Brayton cycle and Rankine cycle jointly obtain high-temperature heat load, which relatively reduces compressor load and has a large magnitude; this is conducive to improving thermal efficiency, reducing device cost and building a combined cycle power plant with a large load of fuel and dual working fluids.

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Abstract

本发明提供双燃料联合循环动力装置，属于联合循环热动技术领域。外部有低品位燃料通道与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经加热炉和燃烧室与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机和加热炉与燃烧室连通，燃烧室还有燃气通道与燃气轮机连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。

Description

双燃料联合循环动力装置 技术领域：
本发明属于联合循环热动技术领域。
背景技术：
动力需求为人类生活与生产所常见，利用燃料燃烧形成的热能转换为机械能是获得和提供动力的重要方式；为了高效地实现热变功，人们需要合理的热力循环和高温驱动热源。
燃料是构建高温热源的重要选项，有不同的种类和不同的性质；其中燃料燃烧所形成燃气的温度高低直接决定着热变功效率。由于受限于工作原理、工作介质性质、材料性质、设备及其它部件制造水平等某一或多个因素，在采用高品位燃料的热动装置中，燃烧过程存在较大温差不可逆损失而导致燃料浪费——这为低品位燃料参与构建热源提供了机遇。
基于单一热力循环的动力装置热效率低，热变功的损失较大；因此，需要构建联合循环以提高热动装置的热效率。对于朗肯循环为理论基础的蒸汽动力装置来说，放热过程温差损失小，循环工质与热源之间温差损失大，热效率低；对于以布雷顿循环为理论基础的热动装置来说，其功率、热效率和压缩过程升压比之间常常存在着难以协调的矛盾。
人们需要简单、主动、安全、经济、高效地利用燃料来获得动力，本发明给出了低品位燃料与高品位燃料搭配使用，实现取长补短和优势互补，大幅度提高低品位燃料利用价值，热效率高、安全性强、功率匹配灵活的直燃型双燃料联合循环动力装置。
发明内容：
本发明主要目的是要提供双燃料联合循环动力装置，具体发明内容分项阐述如下：
1.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器和蒸发器所组成；外部有低品位燃料通道与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经加热炉和燃烧室与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机和加热炉与燃烧室连通，燃烧室还有燃气通道与燃气轮机连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
2.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经加热炉和燃烧室与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机、高温回热器和加热炉与燃烧室连通，燃烧室还有燃气通道与燃气轮机连通，燃气轮机还有燃气通道经高温回热器和蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
3.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经加热炉和燃烧室与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机、高温回热器和加热炉与燃烧室连通，燃烧室还有燃气通道与燃气轮机连通之后燃气轮机再有燃气通道经高温回热器与自身连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
4.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经加热炉和燃烧室与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道与压缩机连通之后压缩机再有空气通道经高温回热器与自身连通，压缩机还有空气通道经加热炉与燃烧室连通，燃烧室还有燃气通道与燃气轮机连通，燃气轮机还有燃气通道经高温回热器和蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
5.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经加热炉和燃烧室与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道与压缩机连通之后压缩机再有空气通道经高温回热器与自身连通，压缩机还有空气通道经加热炉与燃烧室连通，燃烧室还有燃气通道与燃气轮机连通之后燃气轮机再有燃气通道经高温回热器与自身连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
6.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经加热炉和燃烧室与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机、加热炉和高温回热器与燃烧室连通，燃烧室还有燃气通道与燃气轮机连通之后燃气轮机再有燃气通道经高温回热器与自身连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
7.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器和蒸发器所组成；外部有高品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有低品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经燃烧室和加热炉与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机与燃烧室连通，燃烧室还有燃气通道经加热炉与燃气轮机连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
8.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有低品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经燃烧室和加热炉与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机和高温回热器与燃烧室连通，燃烧室还有燃气通道经加热炉与燃气轮机连通，燃气轮机还有燃气通道经高温回热器和蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
9.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有低品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经燃烧室和加热炉与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机和高温回热器与燃烧室连通，燃烧室还有燃气通道经加热炉与燃气轮机连通之后燃气轮机再有燃气通道经高温回热器与自身连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
10.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有低品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经燃烧室和加热炉与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道与压缩机连通之后压缩机再有空气通道经高温回热器与自身连通，压缩机还有空气通道与燃烧室连通，燃烧室还有燃气通道经加热炉与燃气轮机连通，燃气轮机还有燃气通道经高温回热器和蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
11.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉 连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有低品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经燃烧室和加热炉与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道与压缩机连通之后压缩机再有空气通道经高温回热器与自身连通，压缩机还有空气通道与燃烧室连通，燃烧室还有燃气通道经加热炉与燃气轮机连通之后燃气轮机再有燃气通道经高温回热器与自身连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
12.双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有低品位燃料通道与燃烧室连通；冷凝器有冷凝液管路经升压泵与蒸发器连通之后蒸发器再有蒸汽通道经燃烧室和加热炉与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器与冷凝器连通；外部有空气通道经压缩机与燃烧室连通，燃烧室还有燃气通道经高温回热器和加热炉与燃气轮机连通之后燃气轮机再有燃气通道经高温回热器与自身连通，燃气轮机还有燃气通道经蒸发器与外部连通；冷凝器还有冷却介质通道与外部连通，燃气轮机连接压缩机并传输动力，形成双燃料联合循环动力装置。
双燃料联合循环动力装置，是在第1-12项所述的任一一款双燃料联合循环动力装置中，增加膨胀增速机并取代汽轮机，增加扩压管并取代升压泵，形成双燃料联合循环动力装置。
附图说明：
图1/13是依据本发明所提供的双燃料联合循环动力装置第1种原则性热力系统图。
图2/13是依据本发明所提供的双燃料联合循环动力装置第2种原则性热力系统图。
图3/13是依据本发明所提供的双燃料联合循环动力装置第3种原则性热力系统图。
图4/13是依据本发明所提供的双燃料联合循环动力装置第4种原则性热力系统图。
图5/13是依据本发明所提供的双燃料联合循环动力装置第5种原则性热力系统图。
图6/13是依据本发明所提供的双燃料联合循环动力装置第6种原则性热力系统图。
图7/13是依据本发明所提供的双燃料联合循环动力装置第7种原则性热力系统图。
图8/13是依据本发明所提供的双燃料联合循环动力装置第8种原则性热力系统图。
图9/13是依据本发明所提供的双燃料联合循环动力装置第9种原则性热力系统图。
图10/13是依据本发明所提供的双燃料联合循环动力装置第10种原则性热力系统图。
图11/13是依据本发明所提供的双燃料联合循环动力装置第11种原则性热力系统图。
图12/13是依据本发明所提供的双燃料联合循环动力装置第12种原则性热力系统图。
图13/13是依据本发明所提供的双燃料联合循环动力装置第13种原则性热力系统图。
图中，1-压缩机，2-燃气轮机，3-汽轮机，4-升压泵，5-加热炉，6-燃烧室，7-热源回热器，8-冷凝器，9-蒸发器(余热锅炉)，10-高温回热器，11-膨胀增速机，12-扩压管。
关于低品位燃料和高品位燃料，这里给出简要说明：
(1)低品位燃料：指的是燃烧产物所能够形成的最高温度(比如绝热燃烧温度或定压燃烧温度)相对较低的燃料；相对于优质煤炭，煤矸石、煤泥等则是低品位燃料。从热源的 概念来看，低品位燃料指的是燃烧产物难以形成较高温度的高温热源的燃料。
(2)高品位燃料：指的是燃烧产物所能够形成的最高温度(比如绝热燃烧温度或定压燃烧温度)相对较高的燃料；相对于煤矸石、煤泥等燃料而言，优质煤、天然气、甲烷、氢气等都是高品位燃料。从热源的概念来看，高品位燃料指的是燃烧产物能够形成较高温度的高温热源的燃料。
(3)对固体燃料来说，燃烧产物的气态物质是构成热源的核心，是热力系统的重要组成部分；而燃烧产物中的固态物质，如废渣，在其含有热能得到利用(利用流程及设备包含在加热炉内或在加热炉本体之外预热空气)之后被排出，不单独列出，其作用不单独表述。
(4)受限于现行技术条件或材料性能等原因，尤其对于需要通过间接手段向循环工质提供驱动高温热负荷的燃料来说，它们的品位高低应以燃烧产物所能够形成的最高温度减去间接传热温差之后的温度高低来划分；或者，以现行技术条件下能够使循环工质所能达到的温度高低来划分——温度高的为高品位燃料，温度低的为低品位燃料。
具体实施方式：
首先要说明的是，在结构和流程的表述上，非必要情况下不重复进行；对显而易见的流程不作表述。下面结合附图和实例来详细描述本发明。
图1/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器和蒸发器所组成；外部有低品位燃料通道与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有高品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经加热炉5和燃烧室6与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1和加热炉5与燃烧室6连通，燃烧室6还有燃气通道与燃气轮机2连通，燃气轮机2还有燃气通道经蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，外部空气流经热源回热器7吸热升温之后进入加热炉5参与燃烧，外部低品位燃料进入加热炉5，低品位燃料和空气在加热炉5内混合并燃烧成较高温度的燃气，加热炉5的燃气放热于流经其内的蒸汽和压缩空气并降温，之后流经热源回热器7放热降温和对外排放；外部空气流经压缩机1升压升温和流经加热炉5吸热升温之后进入燃烧室6参与燃烧，外部高品位燃料进入燃烧室6，高品位燃料和压缩空气在燃烧室6内混合并燃烧成高压高温燃气，燃烧室6的高压高温燃气放热于蒸汽之后进入燃气轮机2降压作功，燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放；冷凝器8的冷凝液经升压泵4升压之后进入蒸发器9、吸热升温和汽化，流经加热炉5和燃烧室6逐步吸热升温，流经汽轮机3降压作功，流经蒸发器9放热降温，再之后进入冷凝器8放热冷凝；高品位燃料和低品位燃料通过燃烧提供驱动热负荷，冷却介质通过冷凝器8带走低温热负荷；燃气轮机2和汽轮机3向压缩机1和外部提供动力，或燃气轮机2和汽轮机3向压缩机1、升压泵4和外部提供动力，形成双燃料联合循环动力装置。
图2/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回 热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有高品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经加热炉5和燃烧室6与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1、高温回热器10和加热炉5与燃烧室6连通，燃烧室6还有燃气通道与燃气轮机2连通，燃气轮机2还有燃气通道经高温回热器10和蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图1/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温、流经高温回热器10和加热炉5逐步吸热升温之后进入燃烧室6参与燃烧，外部高品位燃料进入燃烧室6，高品位燃料和压缩空气在燃烧室6内混合并燃烧成高压高温燃气，燃烧室6的燃气放热于蒸汽之后进入燃气轮机2降压作功，燃气轮机2排放的燃气流经高温回热器10和蒸发器9逐步放热降温之后对外排放，形成双燃料联合循环动力装置。
图3/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有高品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经加热炉5和燃烧室6与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1、高温回热器10和加热炉5与燃烧室6连通，燃烧室6还有燃气通道与燃气轮机2连通之后燃气轮机2再有燃气通道经高温回热器10与自身连通，燃气轮机2还有燃气通道经蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图1/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温、流经高温回热器10和加热炉5逐步吸热升温之后进入燃烧室6参与燃烧，外部高品位燃料进入燃烧室6，高品位燃料和压缩空气在燃烧室6内混合并燃烧成高压高温燃气，燃烧室6的高温燃气放热于蒸汽之后提供给燃气轮机2；进入燃气轮机2的燃气降压作功至一定程度之后流经高温回热器10放热降温，进入燃气轮机2继续降压作功，燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放，形成双燃料联合循环动力装置。
图4/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有高品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经加热炉5和燃烧室6与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道与压缩机1连通之后 压缩机1再有空气通道经高温回热器10与自身连通，压缩机1还有空气通道经加热炉5与燃烧室6连通，燃烧室6还有燃气通道与燃气轮机2连通，燃气轮机2还有燃气通道经高温回热器10和蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图1/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温至一定程度之后流经高温回热器10吸热升温，进入压缩机1继续升压升温；压缩机1排放的压缩空气流经加热炉5吸热升温之后进入燃烧室6参与燃烧，外部高品位燃料进入燃烧室6，高品位燃料和压缩空气在燃烧室6内混合并燃烧成高压高温燃气，燃烧室6的高温燃气放热于蒸汽之后进入燃气轮机2降压作功，燃气轮机2排放的燃气流经高温回热器10和蒸发器9逐步放热降温之后对外排放，形成双燃料联合循环动力装置。
图5/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有高品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经加热炉5和燃烧室6与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道与压缩机1连通之后压缩机1再有空气通道经高温回热器10与自身连通，压缩机1还有空气通道经加热炉5与燃烧室6连通，燃烧室6还有燃气通道与燃气轮机2连通之后燃气轮机2再有燃气通道经高温回热器10与自身连通，燃气轮机2还有燃气通道经蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图1/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温至一定程度之后流经高温回热器10吸热升温，进入压缩机1继续升压升温；压缩机1排放的压缩空气流经加热炉5吸热升温之后进入燃烧室6参与燃烧，外部高品位燃料进入燃烧室6，高品位燃料和压缩空气在燃烧室6内混合并燃烧成高压高温燃气，燃烧室6的高温燃气放热于蒸汽之后提供给燃气轮机2；进入燃气轮机2的燃气降压作功至一定程度之后流经高温回热器10放热降温，进入燃气轮机2继续降压作功；燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放，形成双燃料联合循环动力装置。
图6/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有高品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经加热炉5和燃烧室6与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1、加热炉5和高温回热器10与燃烧室6连通，燃烧室6还有燃气通道与燃气轮机2连通之后燃气轮机2再有燃气通道经高温回热器10与自身连通，燃气轮机2还有燃气通道经蒸发器9与外部 连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图1/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温，流经加热炉5和高温回热器10逐步吸热升温之后进入燃烧室6参与燃烧，外部高品位燃料进入燃烧室6，高品位燃料和压缩空气在燃烧室6内混合并燃烧成高压高温燃气，燃烧室6的高温燃气放热于蒸汽之后提供给燃气轮机2；进入燃气轮机2的燃气降压作功至一定程度之后流经高温回热器10放热降温，进入燃气轮机2继续降压作功，燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放，形成双燃料联合循环动力装置。
图7/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器和蒸发器所组成；外部有高品位燃料与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有低品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经燃烧室6和加热炉5与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1与燃烧室6连通，燃烧室6还有燃气通道经加热炉5与燃气轮机2连通，燃气轮机2还有燃气通道经蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，外部高品位燃料进入加热炉5，外部空气流经热源回热器7吸热升温之后进入加热炉5参与燃烧，高品位燃料和空气在加热炉5内混合并燃烧成高温燃气，加热炉5的高温燃气放热于流经其内的蒸汽和燃气并降温，之后流经热源回热器7放热降温和对外排放；外部低品位燃料进入燃烧室6，外部空气流经压缩机1升压升温之后进入燃烧室6参与燃烧，低品位燃料和压缩空气在燃烧室6内混合并燃烧成较高温度的燃气；燃烧室6的燃气放热于蒸汽之后流经加热炉5吸热，然后进入燃气轮机2降压作功，燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放；冷凝器8的冷凝液经升压泵4升压之后进入蒸发器9、吸热升温和汽化，流经燃烧室6和加热炉5逐步吸热升温，流经汽轮机3降压作功，流经蒸发器9放热降温，再之后进入冷凝器8放热冷凝；高品位燃料和低品位燃料通过燃烧提供驱动热负荷，冷却介质通过冷凝器8带走低温热负荷；燃气轮机2和汽轮机3向压缩机1和外部提供动力，或燃气轮机2和汽轮机3向压缩机1、升压泵4和外部提供动力，形成双燃料联合循环动力装置。
图8/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有低品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经燃烧室6和加热炉5与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1和高温回热器10与燃烧室6连通，燃烧室6还有燃气通道经加热炉5与燃气轮机2连通，燃气轮机2还有燃气通道经高温回热器10和蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连 通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图7/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温，流经高温回热器10吸热升温，之后进入燃烧室6参与燃烧；外部低品位燃料进入燃烧室6，低品位燃料和压缩空气在燃烧室6内混合并燃烧成较高温度的燃气；燃烧室6的燃气放热于蒸汽之后流经加热炉5吸热，然后进入燃气轮机2降压作功，燃气轮机2排放的燃气流经高温回热器10和蒸发器9逐步放热降温之后对外排放，形成双燃料联合循环动力装置。
图9/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有低品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经燃烧室6和加热炉5与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1和高温回热器10与燃烧室6连通，燃烧室6还有燃气通道经加热炉5与燃气轮机2连通之后燃气轮机2再有燃气通道经高温回热器10与自身连通，燃气轮机2还有燃气通道经蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图7/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温，流经高温回热器10吸热升温，之后进入燃烧室6参与燃烧；外部低品位燃料进入燃烧室6，低品位燃料和压缩空气在燃烧室6内混合并燃烧成较高温度的燃气；燃烧室6的燃气放热于蒸汽之后流经加热炉5吸热，然后提供给燃气轮机2；进入燃气轮机2的燃气降压作功至一定程度之后流经高温回热器10放热降温，进入燃气轮机2继续降压作功；燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放，形成双燃料联合循环动力装置。
图10/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有低品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经燃烧室6和加热炉5与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道与压缩机1连通之后压缩机1再有空气通道经高温回热器10与自身连通，压缩机1还有空气通道与燃烧室6连通，燃烧室6还有燃气通道经加热炉5与燃气轮机2连通，燃气轮机2还有燃气通道经高温回热器10和蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图7/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温至一定程度之后流经高温回热器10吸热升温，进入压缩机1继续升压升温，然后进入燃烧室6参与燃烧；外部低品位燃料进入燃烧室6，低品位燃料和压缩 空气在燃烧室6内混合并燃烧成较高温度的燃气；燃烧室6的燃气放热于蒸汽之后流经加热炉5吸热，然后进入燃气轮机2降压作功，燃气轮机2排放的燃气流经高温回热器10和蒸发器9逐步放热降温之后对外排放，形成双燃料联合循环动力装置。
图11/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有低品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经燃烧室6和加热炉5与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道与压缩机1连通之后压缩机1再有空气通道经高温回热器10与自身连通，压缩机1还有空气通道与燃烧室6连通，燃烧室6还有燃气通道经加热炉5与燃气轮机2连通之后燃气轮机2再有燃气通道经高温回热器10与自身连通，燃气轮机2还有燃气通道经蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图7/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温至一定程度之后流经高温回热器10吸热升温，进入压缩机1继续升压升温，然后进入燃烧室6参与燃烧；外部低品位燃料进入燃烧室6，低品位燃料和压缩空气在燃烧室6内混合并燃烧成较高温度的燃气；燃烧室6的燃气放热于蒸汽之后流经加热炉5吸热，然后提供给燃气轮机2；进入燃气轮机2的燃气降压作功至一定程度之后流经高温回热器10放热降温，进入燃气轮机2继续降压作功；燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放，形成双燃料联合循环动力装置。
图12/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉5连通，外部还有空气通道经热源回热器7与加热炉5连通，加热炉5还有燃气通道经热源回热器7与外部连通，外部还有低品位燃料通道与燃烧室6连通；冷凝器8有冷凝液管路经升压泵4与蒸发器9连通之后蒸发器9再有蒸汽通道经燃烧室6和加热炉5与汽轮机3连通，汽轮机3还有低压蒸汽通道经蒸发器9与冷凝器8连通；外部有空气通道经压缩机1与燃烧室6连通，燃烧室6还有燃气通道经高温回热器10和加热炉5与燃气轮机2连通之后燃气轮机2再有燃气通道经高温回热器10与自身连通，燃气轮机2还有燃气通道经蒸发器9与外部连通；冷凝器8还有冷却介质通道与外部连通，燃气轮机2连接压缩机1并传输动力。
(2)流程上，与图7/13所示的双燃料联合循环动力装置相比较，不同之处在于：外部空气流经压缩机1升压升温，之后进入燃烧室6参与燃烧；外部低品位燃料进入燃烧室6，低品位燃料和压缩空气在燃烧室6内混合并燃烧成较高温度的燃气；燃烧室6的燃气放热于蒸汽之后流经高温回热器10和加热炉5逐步吸热，然后提供给燃气轮机2；进入燃气轮机2的燃气降压作功至一定程度之后流经高温回热器10放热降温，进入燃气轮机2继续降压作功；燃气轮机2排放的燃气流经蒸发器9放热降温之后对外排放，形成双燃料联合循环动力装置。
图13/13所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，在图2/13所示的双燃料联合循环动力装置中，增加膨胀增速机11并取代汽轮机3，增加扩压管12并取代升压泵4。
(2)流程上，与图2/13所示的双燃料联合循环动力装置相比较，不同之处在于：冷凝器8的冷凝液经扩压管12降速升压之后进入蒸发器9、吸热升温和汽化，流经加热炉5和燃烧室6逐步吸热升温，流经膨胀增速机11降压作功并增速，流经蒸发器9放热降温，再之后进入冷凝器8放热冷凝；高品位燃料和低品位燃料通过燃烧提供驱动热负荷，冷却介质通过冷凝器8带走低温热负荷，燃气轮机2和膨胀增速机11向压缩机1和外部提供动力，形成双燃料联合循环动力装置。
本发明技术可以实现的效果——本发明所提出的双燃料联合循环动力装置，具有如下效果和优势：
(1)低品位燃料与高品位燃料合理搭配，共同提供驱动热负荷，有效降低燃料成本。
(2)驱动热负荷分级利用，显著降低温差不可逆损失，有效提升装置热效率。
(3)低品位燃料结合高品位燃料为双燃料联合循环动力装置提供高温驱动热负荷，低品位燃料发挥出高品位燃料效果，大幅度提升低品位燃料转换为机械能的经济价值。
(4)低品位燃料可用于或有助于降低顶部气体动力循环系统压缩比，提升气体循环工质流量，有利于构建大负荷联合循环动力装置。
(5)提升热动装置燃料选择范围和使用价值，降低装置能耗成本。
(6)吸热环节，直燃方式无温差传热损失，间接方式吸热温差损失小，有利于提高热效率和装置安全性。
(7)循环工质低温相变放热，放热环节温差损失可控，有利于提高热效率。
(8)底部循环设置独立汽轮机，工质流量和汽轮机功率能够灵活选择，功率匹配范围大。
(9)在实现高热效率前提下，可选择低压运行，装置运行的安全性得到较大幅度提高。
(10)底部循环可工作在亚临界、临界、超临界或超超临界状态，得到合理的热变功效率。
(11)布雷顿循环和朗肯循环共同获取高温热负荷，相对降低压缩机负荷且幅度大；这有利于提升热效率，有利于降低装置成本和构建大负荷燃料携同双工质联合循环动力装置。
(12)提供多种回热技术手段，有效提升装置在功率、热效率、升压比等多方面的协调性。

Claims (13)

  1. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器和蒸发器所组成；外部有低品位燃料通道与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有高品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经加热炉(5)和燃烧室(6)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)和加热炉(5)与燃烧室(6)连通，燃烧室(6)还有燃气通道与燃气轮机(2)连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  2. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有高品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经加热炉(5)和燃烧室(6)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)、高温回热器(10)和加热炉(5)与燃烧室(6)连通，燃烧室(6)还有燃气通道与燃气轮机(2)连通，燃气轮机(2)还有燃气通道经高温回热器(10)和蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  3. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有高品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经加热炉(5)和燃烧室(6)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)、高温回热器(10)和加热炉(5)与燃烧室(6)连通，燃烧室(6)还有燃气通道与燃气轮机(2)连通之后燃气轮机(2)再有燃气通道经高温回热器(10)与自身连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  4. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有高品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经加热炉(5)和燃烧室(6)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道 经蒸发器(9)与冷凝器(8)连通；外部有空气通道与压缩机(1)连通之后压缩机(1)再有空气通道经高温回热器(10)与自身连通，压缩机(1)还有空气通道经加热炉(5)与燃烧室(6)连通，燃烧室(6)还有燃气通道与燃气轮机(2)连通，燃气轮机(2)还有燃气通道经高温回热器(10)和蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  5. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有高品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经加热炉(5)和燃烧室(6)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道与压缩机(1)连通之后压缩机(1)再有空气通道经高温回热器(10)与自身连通，压缩机(1)还有空气通道经加热炉(5)与燃烧室(6)连通，燃烧室(6)还有燃气通道与燃气轮机(2)连通之后燃气轮机(2)再有燃气通道经高温回热器(10)与自身连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  6. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有低品位燃料通道与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有高品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经加热炉(5)和燃烧室(6)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)、加热炉(5)和高温回热器(10)与燃烧室(6)连通，燃烧室(6)还有燃气通道与燃气轮机(2)连通之后燃气轮机(2)再有燃气通道经高温回热器(10)与自身连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  7. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器和蒸发器所组成；外部有高品位燃料与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有低品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经燃烧室(6)和加热炉(5)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)与燃烧室(6)连通，燃烧室(6)还有燃气通道经加热炉(5)与燃气轮机(2)连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  8. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有低品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经燃烧室(6)和加热炉(5)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)和高温回热器(10)与燃烧室(6)连通，燃烧室(6)还有燃气通道经加热炉(5)与燃气轮机(2)连通，燃气轮机(2)还有燃气通道经高温回热器(10)和蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  9. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有低品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经燃烧室(6)和加热炉(5)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)和高温回热器(10)与燃烧室(6)连通，燃烧室(6)还有燃气通道经加热炉(5)与燃气轮机(2)连通之后燃气轮机(2)再有燃气通道经高温回热器(10)与自身连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  10. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有低品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经燃烧室(6)和加热炉(5)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道与压缩机(1)连通之后压缩机(1)再有空气通道经高温回热器(10)与自身连通，压缩机(1)还有空气通道与燃烧室(6)连通，燃烧室(6)还有燃气通道经加热炉(5)与燃气轮机(2)连通，燃气轮机(2)还有燃气通道经高温回热器(10)和蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  11. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有低品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通 道经燃烧室(6)和加热炉(5)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道与压缩机(1)连通之后压缩机(1)再有空气通道经高温回热器(10)与自身连通，压缩机(1)还有空气通道与燃烧室(6)连通，燃烧室(6)还有燃气通道经加热炉(5)与燃气轮机(2)连通之后燃气轮机(2)再有燃气通道经高温回热器(10)与自身连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  12. 双燃料联合循环动力装置，主要由压缩机、燃气轮机、汽轮机、升压泵、加热炉、燃烧室、热源回热器、冷凝器、蒸发器和高温回热器所组成；外部有高品位燃料与加热炉(5)连通，外部还有空气通道经热源回热器(7)与加热炉(5)连通，加热炉(5)还有燃气通道经热源回热器(7)与外部连通，外部还有低品位燃料通道与燃烧室(6)连通；冷凝器(8)有冷凝液管路经升压泵(4)与蒸发器(9)连通之后蒸发器(9)再有蒸汽通道经燃烧室(6)和加热炉(5)与汽轮机(3)连通，汽轮机(3)还有低压蒸汽通道经蒸发器(9)与冷凝器(8)连通；外部有空气通道经压缩机(1)与燃烧室(6)连通，燃烧室(6)还有燃气通道经高温回热器(10)和加热炉(5)与燃气轮机(2)连通之后燃气轮机(2)再有燃气通道经高温回热器(10)与自身连通，燃气轮机(2)还有燃气通道经蒸发器(9)与外部连通；冷凝器(8)还有冷却介质通道与外部连通，燃气轮机(2)连接压缩机(1)并传输动力，形成双燃料联合循环动力装置。
  13. 双燃料联合循环动力装置，是在权利要求1-12所述的任一一款双燃料联合循环动力装置中，增加膨胀增速机(11)并取代汽轮机(3)，增加扩压管(12)并取代升压泵(4)，形成双燃料联合循环动力装置。
PCT/CN2022/000046 2021-03-19 2022-03-18 双燃料联合循环动力装置 WO2022193796A1 (zh)

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