WO2022152006A1 - 双燃料燃气-蒸汽联合循环动力装置 - Google Patents

双燃料燃气-蒸汽联合循环动力装置 Download PDF

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Publication number
WO2022152006A1
WO2022152006A1 PCT/CN2022/000003 CN2022000003W WO2022152006A1 WO 2022152006 A1 WO2022152006 A1 WO 2022152006A1 CN 2022000003 W CN2022000003 W CN 2022000003W WO 2022152006 A1 WO2022152006 A1 WO 2022152006A1
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Prior art keywords
steam
compressor
gas
channel
heat exchanger
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PCT/CN2022/000003
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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 WO2022152006A1 publication Critical patent/WO2022152006A1/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
    • F01K19/00—Regenerating or otherwise treating steam exhausted from steam engine plant
    • F01K19/02—Regenerating by compression
    • F01K19/04—Regenerating by compression in combination with cooling or heating
    • 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
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/04—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
    • F02C1/05—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Definitions

  • the invention belongs to the technical field of thermodynamics and thermodynamics.
  • Cold demand, heat demand and power demand are common in human life and production; among them, the chemical energy of high-quality fuel is converted into thermal energy through combustion, and then the thermal energy is efficiently converted into mechanical energy through a gas-steam power plant. An important means for humans to provide power or electricity.
  • the temperature of the gas formed by the combustion of the fuel directly determines the thermal power conversion efficiency; from the temperature of the gas formed by combustion (such as the combustion temperature at constant pressure)
  • High-grade fuels correspond to high-grade heat sources, which can convert more mechanical energy; while low-grade fuels with low constant-pressure combustion temperatures are difficult to form high-temperature combustion products, corresponding to low-grade heat sources—relative to the former, less mechanical energy can be converted.
  • the gasoline, diesel, natural gas and other fuels used are high-quality and high-grade fuels; due to the limitation of working principle or material properties or equipment manufacturing level, the high-quality and high-grade fuels form high temperature
  • the difference between the temperature of the combustion-supporting medium (such as air) and the combustion temperature of the fuel at constant pressure is large, and there is a large irreversible loss of the temperature difference in the combustion process, which leads to the loss of mass in the utilization of the fuel - however, this is low.
  • the participation of high-grade fuels and low-grade fuels (such as coal gangue, etc.) in providing high temperature driving heat loads brings opportunities.
  • the present invention provides the rational collocation of low-grade fuel and high-grade fuel to realize learning from each other's strengths and complement each other's advantages, and greatly improve the thermal power conversion efficiency of low-grade fuel.
  • a dual-fuel gas-steam combined cycle power plant that reduces greenhouse gas emissions and effectively reduces fuel costs.
  • the main purpose of the present invention is to provide a dual-fuel gas-steam combined cycle power plant, and the specific content of the invention is described as follows:
  • Dual-fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, air heating furnace, combustion chamber and heat source return It is composed of a heater; an external low-grade fuel channel is connected to the air heating furnace, an external air channel is connected to the air heating furnace through a heat source regenerator, and the air heating furnace and a gas channel are connected to the outside through a heat source regenerator.
  • the condenser has After the condensate pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the high temperature heat exchanger, the compressor has a steam channel connected with the high temperature heat exchanger, and the high temperature heat exchanger also has a steam channel connected with the steam turbine.
  • the steam turbine also has a low-pressure steam passage that communicates with the evaporator and then is divided into two paths—the first path communicates with the compressor and the second path communicates with the condenser; the condenser also has a cooling medium channel that communicates with the outside, and the steam turbine is connected to the compressor and transmits power. , the gas turbine is connected to the second compressor and transmits power to form a dual-fuel gas-steam combined cycle power plant.
  • Dual fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, air heating furnace, combustion chamber, heat source return It consists of a heat regenerator and a high temperature regenerator; an external low-grade fuel channel is connected to the air heating furnace, and an external air channel is connected to the air heating furnace through the heat source regenerator, and the air heating furnace has a gas channel through the heat source regenerator. It is connected with the outside, and there is a high-grade fuel channel on the outside that communicates with the combustion chamber, and an air channel on the outside is connected with the combustion chamber through the second compressor, high temperature regenerator and air heating furnace.
  • the combustion chamber also has a gas channel through the gas turbine, high temperature
  • the regenerator and the high-temperature heat exchanger communicate with the outside;
  • the condenser 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 high-temperature heat exchanger, and the compressor has a steam channel to communicate with the high-temperature heat exchanger.
  • the high-temperature heat exchanger and the steam passage are connected with the steam turbine, and the steam turbine and the low-pressure steam passage are connected with the evaporator and then divided into two paths - the first path is connected with the compressor and the second path is connected with the condenser; the condenser also There is a cooling medium channel that communicates with the outside, the steam turbine is connected to the compressor and transmits power, and the gas turbine is connected to the second compressor and transmits power to form a dual-fuel gas-steam combined cycle power plant.
  • Dual-fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, air heating furnace, combustion chamber, heat source return It consists of a heat regenerator and a high temperature regenerator; an external low-grade fuel channel is connected to the air heating furnace, and an external air channel is connected to the air heating furnace through the heat source regenerator, and the air heating furnace has a gas channel through the heat source regenerator.
  • the combustion chamber It is connected with the outside, and there is a high-grade fuel channel on the outside that communicates with the combustion chamber, and an air channel on the outside is connected with the combustion chamber through the second compressor, air heating furnace and high temperature regenerator, and the combustion chamber also has a gas channel through the gas turbine, high temperature
  • the regenerator and the high-temperature heat exchanger communicate with the outside;
  • the condenser 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 high-temperature heat exchanger, and the compressor has a steam channel to communicate with the high-temperature heat exchanger.
  • the high-temperature heat exchanger and the steam passage are connected with the steam turbine, and the steam turbine and the low-pressure steam passage are connected with the evaporator and then divided into two paths - the first path is connected with the compressor and the second path is connected with the condenser; the condenser also There is a cooling medium channel that communicates with the outside, the steam turbine is connected to the compressor and transmits power, and the gas turbine is connected to the second compressor and transmits power to form a dual-fuel gas-steam combined cycle power plant.
  • Dual-fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, air heating furnace, combustion chamber, heat source return It consists of a heat regenerator and a high temperature regenerator; an external low-grade fuel channel is connected to the air heating furnace, and an external air channel is connected to the air heating furnace through the heat source regenerator, and the air heating furnace has a gas channel through the heat source regenerator.
  • the gas turbine has a gas channel that communicates with itself through the high-temperature regenerator, and the gas turbine also has a gas channel that communicates with the outside through a high-temperature heat exchanger;
  • the condenser has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam channel.
  • the compressor Connected with the high-temperature heat exchanger, the compressor has a steam channel that communicates with the high-temperature heat exchanger, the high-temperature heat exchanger also has a steam channel that communicates with the steam turbine, and the steam turbine has a low-pressure steam channel that communicates with the evaporator and is divided into two paths—the first path
  • the condenser is connected to the compressor and the second path is connected to the condenser; the condenser also has a cooling medium channel that is connected to the outside, the steam turbine is connected to the compressor and transmits power, and the gas turbine is connected to the second compressor and transmits power to form a dual-fuel gas-steam combined cycle powerplant.
  • Dual-fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, air heating furnace, combustion chamber, heat source return It consists of a heat regenerator and a high temperature regenerator; an external low-grade fuel channel is connected to the air heating furnace, and an external air channel is connected to the air heating furnace through the heat source regenerator, and the air heating furnace has a gas channel through the heat source regenerator.
  • the gas turbine has a gas channel that communicates with itself through the high-temperature regenerator, and the gas turbine also has a gas channel that communicates with the outside through a high-temperature heat exchanger;
  • the condenser has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam channel.
  • the compressor Connected with the high-temperature heat exchanger, the compressor has a steam channel that communicates with the high-temperature heat exchanger, the high-temperature heat exchanger also has a steam channel that communicates with the steam turbine, and the steam turbine has a low-pressure steam channel that communicates with the evaporator and is divided into two paths—the first path
  • the condenser is connected to the compressor and the second path is connected to the condenser; the condenser also has a cooling medium channel that is connected to the outside, the steam turbine is connected to the compressor and transmits power, and the gas turbine is connected to the second compressor and transmits power to form a dual-fuel gas-steam combined cycle powerplant.
  • Dual-fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, air heating furnace, combustion chamber, heat source return It consists of a heat regenerator and a high temperature regenerator; an external low-grade fuel channel is connected to the air heating furnace, and an external air channel is connected to the air heating furnace through the heat source regenerator, and the air heating furnace has a gas channel through the heat source regenerator. It communicates with the outside, and there is a high-grade fuel channel on the outside that communicates with the combustion chamber, and an air channel on the outside that communicates with the second compressor. After that, the second compressor has an air channel that communicates with itself through the high-temperature regenerator.
  • the second compressor also There is an air channel connected with the combustion chamber through the air heating furnace, and the combustion chamber and the gas channel are connected with the outside through the gas turbine, high temperature regenerator and high temperature heat exchanger; the condenser has a condensate pipeline connected with the evaporator through a booster pump.
  • the evaporator also has a steam channel that communicates with the high-temperature heat exchanger
  • the compressor has a steam channel that communicates with the high-temperature heat exchanger
  • the high-temperature heat exchanger also has a steam channel that communicates with the steam turbine
  • the steam turbine has a low-pressure steam channel that communicates with the evaporator and is divided into two parts.
  • the first road is connected to the compressor and the second road is connected to the condenser; the condenser and the cooling medium channel are connected to the outside, the steam turbine is connected to the compressor and transmits power, and the gas turbine is connected to the second compressor and transmits power, forming a dual Fuel gas-steam combined cycle power plant.
  • Dual-fuel gas-steam combined cycle power plant in any of the dual-fuel gas-steam combined cycle power plants described in items 1-6, the evaporator is connected with the outside by adding a gas channel to form dual-fuel gas - Steam combined cycle power plant.
  • the dual-fuel gas-steam combined cycle power plant is any one of the dual-fuel gas-steam combined cycle power plants described in items 1-6, adding a heater, and connecting the steam turbine with a low-pressure steam passage and evaporation. After being connected, it is divided into two paths—the first path is connected to the compressor and the second path is connected to the condenser. Adjusted so that the steam turbine has a low-pressure steam channel and is connected to the heater, and then divided into two paths—the first path is connected to the compressor and the second path is connected to the condenser. The second channel is connected with the condenser, the heater and the heated medium channel are connected with the outside, and the evaporator is connected with the outside by adding a gas channel to form a dual-fuel gas-steam combined cycle power plant.
  • the dual-fuel gas-steam combined cycle power plant is any one of the dual-fuel gas-steam combined cycle power plants described in items 1-7, adding a medium temperature regenerator, and connecting the evaporator with a steam channel and The connection of the high temperature heat exchanger is adjusted so that the evaporator has a steam passage connected with the high temperature heat exchanger through the medium temperature regenerator, and the compressor has a steam passage and the high temperature heat exchanger is adjusted so that the compressor has a steam passage through the medium temperature regenerator and the high temperature heat exchanger.
  • the heat exchanger is connected, and the low-pressure steam passage of the steam turbine is adjusted to communicate with the evaporator so that the steam turbine has a low-pressure steam passage and communicated with the evaporator through the medium-temperature regenerator to form a dual-fuel gas-steam combined cycle power plant.
  • the dual-fuel gas-steam combined cycle power plant is any one of the dual-fuel gas-steam combined cycle power plants described in items 1-7, adding a medium temperature regenerator, and connecting the evaporator with a steam channel and The connection of the high temperature heat exchanger is adjusted so that the evaporator has a steam passage connected with the high temperature heat exchanger through the medium temperature regenerator, and the compressor has a steam passage and the high temperature heat exchanger is adjusted so that the compressor has a steam passage through the medium temperature regenerator and the high temperature heat exchanger.
  • the heat exchanger is connected, and the steam turbine has a low-pressure steam channel and the evaporator is adjusted to communicate with the steam turbine through the medium temperature regenerator. device.
  • the dual-fuel gas-steam combined cycle power plant is any one of the dual-fuel gas-steam combined cycle power plants described in items 1-10, adding a second booster pump and a low-temperature regenerator to replace the
  • the condenser has a condensate pipeline that communicates with the booster pump and is adjusted so that the condenser has a condensate pipeline that communicates with the low-temperature regenerator through the second booster pump, and the compressor is provided with a steam extraction channel to communicate with the low-temperature regenerator.
  • the condensate pipeline is connected with the booster pump to form a dual-fuel gas-steam combined cycle power plant.
  • Dual-fuel gas-steam combined cycle power plant in any of the dual-fuel gas-steam combined cycle power plants described in items 1-11, the high heat exchanger has a steam passage connected with the steam turbine to adjust to high heat The exchanger has a steam passage which is communicated with the steam turbine through the air heating furnace to form a dual-fuel gas-steam combined cycle power plant.
  • the dual-fuel gas-steam combined cycle power plant is any one of the dual-fuel gas-steam combined cycle power plants described in items 1-12, adding an expansion speed increaser and replacing a steam turbine, adding a dual-energy compression It replaces the compressor, increases the diffuser pipe and replaces the booster pump, forming a dual-fuel gas-steam combined cycle power plant.
  • Dual-fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, primary combustion chamber and combustion chamber;
  • the external low-grade fuel passage communicates with the primary combustion chamber
  • the external high-grade fuel passage communicates with the combustion chamber
  • the external air passage communicates with the second compressor and then divides into two paths—the first path communicates with the primary combustion chamber and The second path is communicated with the combustion chamber through the primary combustion chamber, the primary combustion chamber and the primary gas channel are communicated with the combustion chamber, and the combustion chamber and the gas channel are communicated with the outside through the gas turbine and the high-temperature heat exchanger
  • the condenser has a condensate pipeline through the After the booster pump is connected to the evaporator, the evaporator has a steam channel that communicates with the high-temperature heat exchanger, the compressor has a steam channel that communicates with the high-temperature heat exchanger, the high-temperature heat exchange
  • the passage After the passage is connected to the evaporator, it is divided into two passages—the first passage is connected to the compressor and the second passage is connected to the condenser; the condenser and the cooling medium passage are connected to the outside, the steam turbine is connected to the compressor and transmits power, and the gas turbine is connected to the second passage.
  • the compressor also transmits power to form a dual-fuel gas-steam combined cycle power plant.
  • Dual fuel gas-steam combined cycle power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, high temperature heat exchanger, second compressor, gas turbine, primary combustion chamber and combustion chamber;
  • the external low-grade fuel channel is connected to the primary combustion chamber, the external high-grade fuel channel is connected to the combustion chamber, and the external air channel is connected to the primary combustion chamber through the second compressor.
  • the primary combustion chamber also has a primary gas channel to communicate with the combustion chamber.
  • the combustion chamber and the gas passage are connected to the outside through the gas turbine and the high-temperature heat exchanger;
  • the condenser has a condensate pipeline that is connected to the evaporator through a booster pump, and then the evaporator has a steam passage that communicates with the high-temperature heat exchanger, compressing
  • the engine has a steam passage that communicates with the high-temperature heat exchanger, the high-temperature heat exchanger also has a steam passage that communicates with the steam turbine, and the steam turbine also has a low-pressure steam passage that communicates with the evaporator and then divides into two paths—the first path is connected to the compressor and the second path Connected with the condenser;
  • the condenser also has a cooling medium channel to communicate with the outside, the steam turbine is connected to the compressor and transmits power, and the gas turbine is connected to the second compressor and transmits power to form a dual-fuel gas-steam combined cycle power plant.
  • Figure 1/15 is a first principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Figure 2/15 is a second principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Figure 3/15 is a third principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Figure 4/15 is a fourth principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Figure 5/15 is a fifth principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Fig. 6/15 is the sixth principle thermodynamic system diagram of the dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Fig. 7/15 is the seventh principle thermodynamic system diagram of the dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Fig. 8/15 is the eighth principle thermodynamic system diagram of the dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Fig. 9/15 is the ninth principle thermodynamic system diagram of the dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • 10/15 is a tenth principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • 11/15 is an eleventh principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Fig. 12/15 is a twelfth principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • Fig. 13/15 is a thirteenth principle thermodynamic system diagram of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • 14/15 are diagrams of the fourteenth principle thermodynamic system of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • 15/15 is a diagram of a fifteenth principle thermodynamic system of a dual-fuel gas-steam combined cycle power plant provided according to the present invention.
  • the steam flows through the steam turbine 1 to achieve thermal power conversion.
  • the steam at the outlet of the steam turbine 1 has a very low pressure and a small flow rate (corresponding to a small kinetic energy), and the mechanical energy required by the booster pump 3 can be mechanically transmitted by the steam turbine. 1 or provided externally.
  • the air heating furnace 9 undertakes the task of heating the air entering the combustion chamber 10, and at the same time provides part of the high-temperature driving heat load for the power plant; in some cases, the air heating furnace 9 also undertakes the heating of the bottom single working medium combined cycle Subsystem circulates steam for heating tasks.
  • relevant heat exchangers heat exchange tube bundles
  • relevant heat exchangers are installed inside the air heating furnace; for example, the superheater that heats the steam from the high temperature heat exchanger 6 in Fig. 12/15; if necessary, a reheater can be installed to meet the A reheater that heats the steam from the steam turbine 1 .
  • the heat source regenerator is related to the temperature grade of the gas in the air heating furnace, which is listed separately.
  • 1Low-grade fuel refers to the fuel with the highest temperature (such as adiabatic combustion temperature or constant pressure combustion temperature) that can be formed by combustion products, such as coal gangue, coal slime, combustible garbage, etc. 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 the fuel with relatively high highest temperature (such as adiabatic combustion temperature or constant pressure combustion temperature) that can be formed by combustion products, such as high-quality coal, natural gas, methane, hydrogen, etc. 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, the heat energy contained in them is utilized (the utilization process and equipment are included in the In the boiler, or after preheating air outside the boiler body), it is not required to be listed separately, and its function is not described separately.
  • the air heating furnace 9 also has a gas channel that communicates with the outside through the heat source regenerator 11.
  • the combustion chamber 10 also has a gas passage through the gas turbine 8 and the high-temperature heat exchanger 6.
  • the condenser 4 has a condensate pipeline connected with the evaporator 5 through the booster pump 3 and then the evaporator 5 has a steam channel to communicate with the high temperature heat exchanger 6, and the compressor 2 has a steam channel and the high temperature heat exchanger 6.
  • the high temperature heat exchanger 6 also has a steam passage that communicates with the steam turbine 1
  • the steam turbine 1 also has a low-pressure steam passage that communicates with the evaporator 5 and then is divided into two paths—the first path communicates with the compressor 2 and the second path communicates with the condenser 4.
  • the condenser 4 also has a cooling medium channel to communicate with the outside, the steam turbine 1 is connected to the compressor 2 and transmits power, and the gas turbine 8 is connected to the second compressor 7 and transmits power.
  • the external low-grade fuel enters the air heating furnace 9, the first external air flows through the heat source regenerator 11 and enters the air heating furnace 9 after absorbing heat and heating up, and the low-grade fuel and air are mixed in the air heating furnace 9 And burn into high-temperature gas, the gas in the air heating furnace 9 releases heat to the compressed air flowing through it and cools it down, and then flows through the heat source regenerator 11 to release heat and cool down and discharge to the outside;
  • the second compressor 7 increases the pressure and heats up, flows through the air heating furnace 9 to absorb heat and heat up, and then enters the combustion chamber 10;
  • the external high-grade fuel enters the combustion chamber 10, mixes with the compressed air from the air heating furnace 9 and burns into high temperature and high pressure gas
  • the high-temperature and high-pressure gas generated by the combustion chamber 10 flows through the gas turbine 8 to depressurize and perform work, and flows through the high-temperature heat exchanger 6 to release heat and cool down, and then discharge to the outside;
  • the evaporator 5 absorbs heat to
  • the combustion chamber 10 Connected with the outside, there is also a high-grade fuel channel on the outside that communicates with the combustion chamber 10, and an air channel on the outside communicates with the combustion chamber 10 through the second compressor 7, the high temperature regenerator 12 and the air heating furnace 9, and the combustion chamber 10 also has The gas channel is communicated with the outside through the gas turbine 8, the high temperature regenerator 12 and the high temperature heat exchanger 6; the condenser 4 has a condensate pipeline connected with the evaporator 5 through the booster pump 3, and then the evaporator 5 has a steam channel and a high temperature heat exchanger.
  • the exchanger 6 is communicated, the compressor 2 has a steam passage that communicates with the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 also has a steam passage that communicates with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam passage that communicates with the evaporator 5 and then is divided into two paths— -
  • the first way is communicated with the compressor 2 and the second way is communicated with the condenser 4;
  • the condenser 4 also has a cooling medium channel communicated with the outside, the steam turbine 1 is connected to the compressor 2 and transmits power, the gas turbine 8 is connected to the second compressor 7 and Transmission power.
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 3/15 is implemented as follows:
  • the combustion chamber 10 Connected with the outside, there is also a high-grade fuel channel on the outside that communicates with the combustion chamber 10, and an air channel on the outside communicates with the combustion chamber 10 through the second compressor 7, the air heating furnace 9 and the high-temperature regenerator 12, and the combustion chamber 10 also has The gas channel is communicated with the outside through the gas turbine 8, the high temperature regenerator 12 and the high temperature heat exchanger 6; the condenser 4 has a condensate pipeline connected with the evaporator 5 through the booster pump 3, and then the evaporator 5 has a steam channel and a high temperature heat exchanger.
  • the exchanger 6 is communicated, the compressor 2 has a steam passage that communicates with the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 also has a steam passage that communicates with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam passage that communicates with the evaporator 5 and then is divided into two paths— —
  • the first route is communicated with the compressor 2 and the second route is communicated with the condenser 4;
  • the condenser 4 also has a cooling medium channel communicated with the outside
  • the steam turbine 1 is connected to the compressor 2 and transmits power
  • the gas turbine 8 is connected to the second compressor 7 and communicated with the outside. Transmission power.
  • the difference is that the external second air flows through the second compressor 7 to increase the pressure and temperature, and the air flows through the air.
  • the heating furnace 9 and the high temperature regenerator 12 gradually absorb heat and heat up, and then enter the combustion chamber 10; the external high-grade fuel enters the combustion chamber 10, mixes with the compressed air from the air heating furnace 9 and burns into high temperature and high pressure gas; the combustion chamber 10 generates The high-temperature and high-pressure gas flows through the gas turbine 8 to depressurize, and then flows through the high-temperature regenerator 12 and the high-temperature heat exchanger 6 to gradually release heat and cool down, and then discharge to the outside to form a dual-fuel gas-steam combined cycle power plant.
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 4/15 is implemented as follows:
  • the combustion chamber 10 Connected with the outside, there is also a high-grade fuel channel on the outside that communicates with the combustion chamber 10, and an air channel on the outside communicates with the combustion chamber 10 through the second compressor 7, the high temperature regenerator 12 and the air heating furnace 9, and the combustion chamber 10 also has
  • the gas channel is communicated with the gas turbine 8
  • the gas turbine 8 has a gas channel to communicate with itself through the high temperature regenerator 12, and the gas turbine 8 also has a gas channel to communicate with the outside through the high temperature heat exchanger 6;
  • the pump 3 is communicated with the evaporator 5
  • the evaporator 5 has a steam channel communicated with the high temperature heat exchanger 6
  • the compressor 2 has a steam channel communicated with the high temperature heat exchanger 6, and the high temperature heat exchanger 6 also has a steam channel communicated with the steam turbine 1.
  • the steam turbine 1 also has a low-pressure steam channel that communicates with the evaporator 5 and then divides it into two ways—the first way is communicated with the compressor 2 and the second way is communicated with the condenser 4; the condenser 4 also has a cooling medium channel communicated with the outside, the steam turbine 1 is connected to the compressor 2 and transmits power, and the gas turbine 8 is connected to the second compressor 7 and transmits power.
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 5/15 is implemented as follows:
  • the steam turbine 1 also has a low-pressure steam channel that communicates with the evaporator 5 and then divides it into two ways—the first way is communicated with the compressor 2 and the second way is communicated with the condenser 4; the condenser 4 also has a cooling medium channel communicated with the outside, the steam turbine 1 is connected to the compressor 2 and transmits power, and the gas turbine 8 is connected to the second compressor 7 and transmits power.
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 6/15 is implemented as follows:
  • the second compressor 7 also has an air passage that communicates with the combustion chamber 10 through the air heating furnace 9, and the combustion chamber 10 also has a gas passage that communicates with the outside through the gas turbine 8, the high temperature regenerator 12 and the high temperature heat exchanger 6; the condenser 4 has condensation After the liquid pipeline is communicated with the evaporator 5 through the booster pump 3, the evaporator 5 has a steam channel to communicate with the high temperature heat exchanger 6, the compressor 2 has a steam channel to communicate with the high temperature heat exchanger 6, and the high temperature heat exchanger 6 also has a steam channel.
  • the steam passage is communicated with the steam turbine 1, and the steam turbine 1 and the low-pressure steam passage are communicated with the evaporator 5 and then divided into two routes—the first route is communicated with the compressor 2 and the second route is communicated with the condenser 4; the condenser 4 also has a cooling medium
  • the passage communicates with the outside, the steam turbine 1 is connected to the compressor 2 and transmits power, and the gas turbine 8 is connected to the second compressor 7 and transmits the power.
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 7/15 is implemented as follows:
  • a gas channel is added to the evaporator 5 to communicate with the outside; the condensate of the condenser 4 flows through the booster pump 3 and then enters the evaporator 5 after being boosted.
  • the heat from the low pressure steam from the steam turbine 1 and the gas discharged from the high temperature heat exchanger 6 is absorbed, heated, evaporated and superheated, and then supplied to the high temperature heat exchanger 6 to form a dual fuel gas-steam combined cycle power plant.
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 8/15 is implemented as follows:
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 10/15 is implemented as follows:
  • the steam turbine 1 has a low-pressure steam passage and the evaporator 5 is connected and adjusted so that the steam turbine 1 has a steam passage that communicates with itself through the medium temperature regenerator 14, and then the steam turbine 1 has a low-pressure steam passage and the evaporator 5 communicates.
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 12/15 is implemented as follows:
  • the high heat exchanger 6 has a steam passage to communicate with the steam turbine 1 and is adjusted so that the high heat exchanger 6 has a steam passage through the air heating furnace 9 is in communication with the steam turbine 1 .
  • the external low-grade fuel enters the air heating furnace 9, the first external air flows through the heat source regenerator 11 and enters the air heating furnace 9 after absorbing heat and heating up, and the low-grade fuel and air are mixed in the air heating furnace 9 And burn into high-temperature gas, the gas in the air heating furnace 9 releases heat to the circulating steam and compressed air flowing through it and cools down, and then flows through the heat source regenerator 11 to release heat and cool down and discharge to the outside;
  • the road air flows through the second compressor 7 to increase the pressure and heat up, flows through the air heating furnace 9 to absorb heat and heat up, and then enters the combustion chamber 10;
  • the external high-grade fuel enters the combustion chamber 10, mixes with the compressed air from the air heating furnace 9 and burns into high temperature and high pressure gas;
  • the high temperature and high pressure gas generated in the combustion chamber 10 flows through the gas turbine 8 to depressurize, and flows through the high temperature heat exchanger 6 to release heat and cool down, and then discharge to the outside;
  • the dual-fuel gas-steam combined cycle power plant shown in Figure 13/15 is implemented as follows:
  • the low-pressure steam discharged from the expansion speed-up machine 17 flows through the evaporator 5 to release heat and cool down, and then is divided into two paths—the first path enters the dual-energy compressor 18 to boost pressure and heat up. And reduce the speed, the second path enters the condenser 4 to release heat and condense; the low-grade fuel passes through the air heating furnace 9 and the high-grade fuel passes through the combustion chamber 10 to jointly provide the driving heat load, and the cooling medium passes through the condenser 4 to take away the low-temperature heat load, The air and gas take away the low temperature heat load through the in-out process; the work output by the expansion speed-up machine 17 and the gas turbine 8 is provided to the second compressor 7, the dual-energy compressor 18 and the external power to form a dual-fuel gas-steam combined cycle power device.
  • the passage is communicated with the primary combustion chamber 20, the external high-grade fuel passage is communicated with the combustion chamber 10, and the external air passage is communicated with the second compressor 7 and then divided into two paths—the first is communicated with the primary combustion chamber 20 and the second is communicated with the primary combustion chamber 20.
  • the second passage communicates with the combustion chamber 10 through the primary combustion chamber 20, the primary combustion chamber 20 also has the primary gas passage and the combustion chamber 10, and the combustion chamber 10 also has a gas passage to communicate with the outside through the gas turbine 8 and the high temperature heat exchanger 6; the condenser 4.
  • the steam turbine 1 There is also a steam passage that is communicated with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam passage that is communicated with the evaporator 5 and then divided into two routes—the first route is communicated with the compressor 2 and the second route is communicated with the condenser 4; the condenser 4 also There are cooling medium passages that communicate with the outside, the steam turbine 1 is connected to the compressor 2 and transmits power, and the gas turbine 8 is connected to the second compressor 7 and transmits power.
  • the external air flows through the second compressor 7 and is divided into two paths after being boosted and heated up—the first path directly enters the primary combustion chamber 20 to participate in combustion, and the second path flows through the primary combustion chamber 20 after absorbing heat and heating up and entering
  • the combustion chamber 10 participates in the combustion; the external low-grade fuel enters the primary combustion chamber 20, and the low-grade fuel and air are mixed in the primary combustion chamber 20 and burned into a relatively high-temperature primary gas, and the primary gas releases heat in the gas flowing through the primary combustion chamber 20.
  • the air is then supplied to the combustion chamber 10; the external high-grade fuel enters the combustion chamber 10, is mixed with the air from the primary combustion chamber 20 and the primary gas and burns into high temperature and high pressure gas, and the high temperature and high pressure gas generated by the combustion chamber 10 flows through the gas turbine 8 to depressurize Do work, flow through the high temperature heat exchanger 6 to release heat and cool down, and then discharge to the outside; the condensate of the condenser 4 flows through the booster pump 3 to boost pressure, and flows through the evaporator 5 to absorb heat, heat up, vaporize and overheat, and then enter the high temperature heat.
  • the heat exchanger 6 absorbs heat and heats up, and the steam discharged from the compressor 2 enters the high-temperature heat exchanger 6 to absorb heat and heat up; the steam discharged from the high-temperature heat exchanger 6 flows through the steam turbine 1 to decompress and perform work, and the low-pressure steam discharged from the steam turbine 1 flows through the evaporator. 5. After exothermic and cooling, it is divided into two paths—the first path enters the compressor 2 to increase the pressure, and the second path enters the condenser 4 to release heat and condense; the low-grade fuel passes through the primary combustion chamber 20 and the high-grade fuel passes through the combustion chamber 10.
  • the cooling medium takes away the low temperature heat load through the condenser 4, and the air and gas take away the low temperature heat load through the in and out process;
  • the work output by the steam turbine 1 and the gas turbine 8 is provided to the compressor 2, the second compressor 7 and the outside
  • the power, or the work output by the steam turbine 1 and the gas turbine 8, is provided to the compressor 2, the booster pump 3, the second compressor 7 and the external power to form a dual-fuel gas-steam combined cycle power plant.
  • the passage is communicated with the primary combustion chamber 20, the external high-grade fuel passage is communicated with the combustion chamber 10, and the external air passage is communicated with the primary combustion chamber 20 through the second compressor 7.
  • the primary combustion chamber 20 also has a primary gas channel and combustion chamber.
  • the chamber 10 is connected, and the combustion chamber 10 also has a gas channel that communicates with the outside through the gas turbine 8 and the high temperature heat exchanger 6;
  • the compressor 2 has a steam passage that communicates with the high-temperature heat exchanger 6,
  • the high-temperature heat exchanger 6 also has a steam passage that communicates with the steam turbine 1, and
  • the steam turbine 1 also has a low-pressure steam passage that communicates with the evaporator 5 and then is divided into Two paths—the first path communicates with the compressor 2 and the second path communicates with the condenser 4;
  • the condenser 4 also has a cooling medium channel that communicates with the outside, the steam turbine 1 is connected to the compressor 2 and transmits power, and the gas turbine 8 is connected to the second compressor machine 7 and transmit power.
  • the external air flows into the primary combustion chamber 20 after being boosted and heated by the second compressor 7, the external low-grade fuel enters the primary combustion chamber 20, and the low-grade fuel and air are mixed in the primary combustion chamber 20 and combusted into
  • the high-temperature and air-rich primary gas is then supplied to the combustion chamber 10; the external high-grade fuel enters the combustion chamber 10, mixes with the primary gas from the primary combustion chamber 20 and burns into high-temperature and high-pressure gas, and the high temperature generated by the combustion chamber 10
  • the high-pressure gas flows through the gas turbine 8 to depressurize the work, and flows through the high-temperature heat exchanger 6 to release heat and cool down, and then discharge to the outside; and overheating, then enter the high temperature heat exchanger 6 to absorb heat and heat up, and the steam discharged from the compressor 2 enters the high temperature heat exchanger 6 to absorb heat and heat up;
  • the low-pressure steam flows through the evaporator 5 to release heat and cool down, and then it is divided into two paths—the first path enters
  • the low-grade fuel completes the increase in the temperature of the compressed air and provides it for the high-grade fuel, effectively reducing the irreversible loss of temperature difference during the combustion process of the high-grade fuel.
  • Low-grade fuels can be used or help to reduce the compression ratio of the top gas turbine circulation system, increase the flow rate of the gas circulation working medium, and help to build a large-load combined cycle power plant.
  • the high-temperature gas grade can be significantly improved, and the utilization value of the low-grade fuel can be improved.

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Abstract

本发明提供双燃料燃气-蒸汽联合循环动力装置，属于热力学与热动技术领域。外部有低品位燃料通道连通空气加热炉，外部有空气通道经热源回热器连通空气加热炉，空气加热炉有燃气通道经热源回热器连通外部，外部有高品位燃料通道连通燃烧室，外部有空气通道经第二压缩机和空气加热炉连通燃烧室，燃烧室经燃气轮机、高温热交换器和蒸发器连通外部；冷凝器经升压泵和蒸发器连通高温热交换器，压缩机与高温热交换器连通，高温热交换器有蒸汽通道连通汽轮机，汽轮机有低压蒸汽通道经蒸发器连通压缩机和冷凝器；冷凝器有冷却介质通道连通外部，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。

Description

双燃料燃气-蒸汽联合循环动力装置 技术领域：
本发明属于热力学与热动技术领域。
背景技术：
冷需求、热需求和动力需求，为人类生活与生产当中所常见；其中，将优质燃料的化学能通过燃烧转换为热能，进而通过燃气-蒸汽动力装置再将热能高效地转换为机械能，是向人类提供动力或电力的重要手段。
燃料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；从燃烧形成的燃气温度(如定压燃烧温度)来看，定压燃烧温度高的高品位燃料，对应着高品位热源，可转化更多的机械能；而定压燃烧温度低的低品位燃料，难以形成高温燃烧产物，对应着低品位热源——相对前者，可转化较少的机械能。
在常规燃气-蒸汽动力装置中，其采用的汽油、柴油、天然气等燃料均为优质的高品位燃料；由于受限于工作原理或材料性质或设备制造水平等原因，其优质高品位燃料形成高温热源的燃烧过程中，助燃介质(如空气)温度与燃料定压燃烧温度之间差别较大，燃烧过程中存在较大温差不可逆损失，这导致燃料利用上的质量损失——不过，这为低品位燃料和低品质燃料(如煤矸石等)参与提供高温驱动热负荷带来了机遇。
人们需要简单、主动、安全、高效地利用燃料来获得动力，本发明给出了将低品位燃料与高品位燃料合理搭配使用，实现取长补短和优势互补，大幅度提高低品位燃料热变功效率，减少温室气体排放，并能够有效降低燃料成本的双燃料燃气-蒸汽联合循环动力装置。发明内容：
本发明主要目的是要提供双燃料燃气-蒸汽联合循环动力装置，具体发明内容分项阐述如下：
1.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室和热源回热器所组成；外部有低品位燃料通道与空气加热炉连通，外部还有空气通道经热源回热器与空气加热炉连通，空气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，外部还有空气通道经第二压缩机和空气加热炉与燃烧室连通，燃烧室还有燃气通道经燃气轮机和高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
2.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉连通，外部还有空气通道经热源回热器与空气加热炉连通，空气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，外部还有空气通道经第二压缩机、高温回热器和空气加热炉与燃烧室连通，燃烧室还有燃气通道经燃气轮机、高温回热器和高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
3.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉连通，外部还有空气通道经热源回热器与空气加热炉连通，空气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，外部还有空气通道经第二压缩机、空气加热炉和高温回热器与燃烧室连通，燃烧室还有燃气通道经燃气轮机、高温回热器和高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
4.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉连通，外部还有空气通道经热源回热器与空气加热炉连通，空气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，外部还有空气通道经第二压缩机、高温回热器和空气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高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
5.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉连通，外部还有空气通道经热源回热器与空气加热炉连通，空气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，外部还有空气通道经第二压缩机、空气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高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽 通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
6.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉连通，外部还有空气通道经热源回热器与空气加热炉连通，空气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，外部还有空气通道与第二压缩机连通之后第二压缩机再有空气通道经高温回热器与自身连通，第二压缩机还有空气通道经空气加热炉与燃烧室连通，燃烧室还有燃气通道经燃气轮机、高温回热器和高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
7.双燃料燃气-蒸汽联合循环动力装置，是在第1-6项所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，蒸发器增设燃气通道与外部连通，形成双燃料燃气-蒸汽联合循环动力装置。
8.双燃料燃气-蒸汽联合循环动力装置，是在第1-6项所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加供热器，将汽轮机有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通调整为汽轮机有低压蒸汽通道与供热器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通，供热器还有被加热介质通道与外部连通，蒸发器增设燃气通道与外部连通，形成双燃料燃气-蒸汽联合循环动力装置。
9.双燃料燃气-蒸汽联合循环动力装置，是在第1-7项所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加中温回热器，将蒸发器有蒸汽通道与高温热交换器连通调整为蒸发器有蒸汽通道经中温回热器与高温热交换器连通，将压缩机有蒸汽通道与高温热交换器连通调整为压缩机有蒸汽通道经中温回热器与高温热交换器连通，将汽轮机有低压蒸汽通道与蒸发器连通调整为汽轮机有低压蒸汽通道经中温回热器与蒸发器连通，形成双燃料燃气-蒸汽联合循环动力装置。
10.双燃料燃气-蒸汽联合循环动力装置，是在第1-7项所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加中温回热器，将蒸发器有蒸汽通道与高温热交换器连通调整为蒸发器有蒸汽通道经中温回热器与高温热交换器连通，将压缩机有蒸汽通道与高温热交换器连通调整为压缩机有蒸汽通道经中温回热器与高温热交换器连通，将汽轮机有低压蒸汽通道与蒸发器连通调整为汽轮机有蒸汽通道经中温回热器与自身连通之后汽轮机再有低压蒸汽通道与蒸发器连通，形成双燃料燃气-蒸汽联合循环动力装置。
11.双燃料燃气-蒸汽联合循环动力装置，是在第1-10项所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加第二升压泵和低温回热器，将冷凝器有冷凝液管路与升压泵连通调整为冷凝器有冷凝液管路经第二升压泵与低温回热器连通，压缩机设置抽汽通道 与低温回热器连通，低温回热器再有冷凝液管路与升压泵连通，形成双燃料燃气-蒸汽联合循环动力装置。
12.双燃料燃气-蒸汽联合循环动力装置，是在第1-11项所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，将高热交换器有蒸汽通道与汽轮机连通调整为高热交换器有蒸汽通道经空气加热炉与汽轮机连通，形成双燃料燃气-蒸汽联合循环动力装置。
13.双燃料燃气-蒸汽联合循环动力装置，是在第1-12项所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加膨胀增速机并取代汽轮机，增加双能压缩机并取代压缩机，增加扩压管并取代升压泵，形成双燃料燃气-蒸汽联合循环动力装置。
14.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、初段燃烧室和燃烧室所组成；外部有低品位燃料通道与初段燃烧室连通，外部还有高品位燃料通道与燃烧室连通，外部还有空气通道与第二压缩机连通之后分成两路——第一路与初段燃烧室连通和第二路经初段燃烧室与燃烧室连通，初段燃烧室还有初段燃气通道与燃烧室连通，燃烧室还有燃气通道经燃气轮机和高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
15.双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、初段燃烧室和燃烧室所组成；外部有低品位燃料通道与初段燃烧室连通，外部还有高品位燃料通道与燃烧室连通，外部还有空气通道经第二压缩机与初段燃烧室连通，初段燃烧室还有初段燃气通道与燃烧室连通，燃烧室还有燃气通道经燃气轮机和高温热交换器与外部连通；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与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与蒸发器连通之后分成两路——第一路与压缩机连通和第二路与冷凝器连通；冷凝器还有冷却介质通道与外部连通，汽轮机连接压缩机并传输动力，燃气轮机连接第二压缩机并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
附图说明：
图1/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第1种原则性热力系统图。
图2/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第2种原则性热力系统图。
图3/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第3种原则性热力系统图。
图4/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第4种原则性热力系统图。
图5/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第5种原则性热力系 统图。
图6/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第6种原则性热力系统图。
图7/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第7种原则性热力系统图。
图8/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第8种原则性热力系统图。
图9/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第9种原则性热力系统图。
图10/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第10种原则性热力系统图。
图11/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第11种原则性热力系统图。
图12/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第12种原则性热力系统图。
图13/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第13种原则性热力系统图。
图14/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第14种原则性热力系统图。
图15/15是依据本发明所提供的双燃料燃气-蒸汽联合循环动力装置第15种原则性热力系统图。
图中，1-汽轮机，2-压缩机，3-升压泵，4-冷凝器，5-蒸发器(余热锅炉)，6-高温热交换器，7-第二压缩机，8-燃气轮机，9-空气加热炉，10-燃烧室，11-热源回热器，12-高温回热器，13-供热器，14-中温回热器，15-第二升压泵，16-低温回热器，17-膨胀增速机，18-双能压缩机，19-扩压管，20-初段燃烧室。
关于膨胀增速机、空气加热炉、热源回热器、低品位燃料和高品位燃料，这里给出如下简要说明：
(1)为揭示汽轮机1和膨胀增速机17在工作流程上的区别，这里作如下解释：
①图1/15中，蒸汽流经汽轮机1实现热变功，汽轮机1出口蒸汽具有很低压力和较小流速(对应较小的动能)，升压泵3需要的机械能可通过机械传输由汽轮机1或由外部提供。
②相比之下，图13/15中，膨胀增速机17出口蒸汽同样具有很低的压力，但流速相对较大(一部分压降转换为低压蒸汽的动能)以满足扩压管19降速升压和双能压缩机18部分升压(降速而得)的需要。
③对图1/15中蒸汽流经汽轮机1实现热变功的过程采用“降压作功”，对图13/15中蒸汽流经膨胀增速机17实现热变功的过程采用“降压作功并增速”来表示。
(2)关于空气加热炉和热源回热器的说明：
①本发明申请中，空气加热炉9承担对进入燃烧室10的空气的加热任务，同时为动力装置提供部分高温驱动热负荷；一些情况下，空气加热炉9还承担对底部单工质联合循环子系统循环蒸汽的加热任务。
②根据需要，空气加热炉内部设置相关热交换器(换热管束)；比如，图12/15中对来自高温热交换器6的蒸汽进行加热的过热器；必要时可设置再热器以满足对来自汽轮机1的蒸汽进行加热的再热器。
③不具体指明具体换热管束(过热器或再热器)，而统一采用空气加热炉来表述。
④热源回热器关联空气加热炉内燃气的温度品位，单独列出。
(3)关于燃料的说明：
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，比如煤矸石、煤泥、可燃垃圾等。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，比如优质煤、天然气、甲烷、氢气等。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，其含有的热能被利用(利用流程及设备包含在锅炉内，或在锅炉本体之外预热空气)之后被排出，无需单独列出，其作用也不单独表述。
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——使循环工质(工作介质)能够达到的温度更高者为高品位燃料，使循环工质(工作介质)能够达到的温度较低者为低品位燃料。
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1/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室和热源回热器所组成；外部有低品位燃料通道与空气加热炉9连通，外部还有空气通道经热源回热器11与空气加热炉9连通，空气加热炉9还有燃气通道经热源回热器11与外部连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道经第二压缩机7和空气加热炉9与燃烧室10连通，燃烧室10还有燃气通道经燃气轮机8和高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，外部低品位燃料进入空气加热炉9，外部第一路空气流经热源回热器11吸热升温之后进入空气加热炉9，低品位燃料和空气在空气加热炉9内混合并燃烧成温度较高的燃气，空气加热炉9内燃气放热于流经其内的压缩空气并降温，之后流经热源回热器11放热降温和对外排放；外部第二路空气流经第二压缩机7升压升温，流经空气加热炉9吸 热升温，之后进入燃烧室10；外部高品位燃料进入燃烧室10，与来自空气加热炉9的压缩空气混合并燃烧成高温高压燃气；燃烧室10产生的高温高压燃气流经燃气轮机8降压作功，流经高温热交换器6放热降温，之后对外排放；冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温、汽化和过热，之后进入高温热交换器6吸热升温，压缩机2排放的蒸汽进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经汽轮机1降压作功，汽轮机1排放的低压蒸汽流经蒸发器5放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝；低品位燃料通过空气加热炉9和高品位燃料通过燃烧室10共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，空气和燃气通过进出流程带走低温热负荷；汽轮机1和燃气轮机8输出的功提供给压缩机2、第二压缩机7和外部作动力，或汽轮机1和燃气轮机8输出的功提供给压缩机2、升压泵3、第二压缩机7和外部作动力，形成双燃料燃气-蒸汽联合循环动力装置。
图2/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉9连通，外部还有空气通道经热源回热器11与空气加热炉9连通，空气加热炉9还有燃气通道经热源回热器11与外部连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道经第二压缩机7、高温回热器12和空气加热炉9与燃烧室10连通，燃烧室10还有燃气通道经燃气轮机8、高温回热器12和高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：外部第二路空气流经第二压缩机7升压升温，流经高温回热器12和空气加热炉9逐步吸热升温，之后进入燃烧室10；外部高品位燃料进入燃烧室10，与来自空气加热炉9的压缩空气混合并燃烧成高温高压燃气；燃烧室10产生的高温高压燃气流经燃气轮机8降压作功，流经高温回热器12和高温热交换器6逐步放热降温，之后对外排放，形成双燃料燃气-蒸汽联合循环动力装置。
图3/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉9连通，外部还有空气通道经热源回热器11与空气加热炉9连通，空气加热炉9还有燃气通道经热源回热器11与外部连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道经第二压缩机7、空气加热炉9和高温回热器12与燃烧室10连通，燃烧室10还有燃气通道经燃气轮机8、高温回热器12和高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路—— 第一路与压缩机2连通和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：外部第二路空气流经第二压缩机7升压升温，流经空气加热炉9和高温回热器12逐步吸热升温，之后进入燃烧室10；外部高品位燃料进入燃烧室10，与来自空气加热炉9的压缩空气混合并燃烧成高温高压燃气；燃烧室10产生的高温高压燃气流经燃气轮机8降压作功，流经高温回热器12和高温热交换器6逐步放热降温，之后对外排放，形成双燃料燃气-蒸汽联合循环动力装置。
图4/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉9连通，外部还有空气通道经热源回热器11与空气加热炉9连通，空气加热炉9还有燃气通道经热源回热器11与外部连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道经第二压缩机7、高温回热器12和空气加热炉9与燃烧室10连通，燃烧室10还有燃气通道与燃气轮机8连通之后燃气轮机8再有燃气通道经高温回热器12与自身连通，燃气轮机8还有燃气通道经高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：外部第二路空气流经第二压缩机7升压升温，流经高温回热器12和空气加热炉9逐步吸热升温，之后进入燃烧室10；外部高品位燃料进入燃烧室10，与来自空气加热炉9的压缩空气混合并燃烧成高温高压燃气；燃烧室10产生的高温高压燃气进入燃气轮机8降压作功至一定程度之后流经高温回热器12放热降温，再之后进入燃气轮机8继续降压作功；燃气轮机8排放的燃气流经高温热交换器6放热降温，之后对外排放，形成双燃料燃气-蒸汽联合循环动力装置。
图5/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉9连通，外部还有空气通道经热源回热器11与空气加热炉9连通，空气加热炉9还有燃气通道经热源回热器11与外部连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道经第二压缩机7、空气加热炉9和高温回热器12与燃烧室10连通，燃烧室10还有燃气通道与燃气轮机8连通之后燃气轮机8再有燃气通道经高温回热器12与自身连通，燃气轮机8还有燃气通道经高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通 和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：外部第二路空气流经第二压缩机7升压升温，流经空气加热炉9和高温回热器12逐步吸热升温，之后进入燃烧室10；外部高品位燃料进入燃烧室10，与来自空气加热炉9的压缩空气混合并燃烧成高温高压燃气；燃烧室10产生的高温高压燃气进入燃气轮机8降压作功至一定程度之后流经高温回热器12放热降温，再之后进入燃气轮机8继续降压作功；燃气轮机8排放的燃气流经高温热交换器6放热降温，之后对外排放，形成双燃料燃气-蒸汽联合循环动力装置。
图6/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉9连通，外部还有空气通道经热源回热器11与空气加热炉9连通，空气加热炉9还有燃气通道经热源回热器11与外部连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道与第二压缩机7连通之后第二压缩机7再有空气通道经高温回热器12与自身连通，第二压缩机7还有空气通道经空气加热炉9与燃烧室10连通，燃烧室10还有燃气通道经燃气轮机8、高温回热器12和高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：外部第二路空气进入第二压缩机7升压升温至一定程度之后流经高温回热器12吸热升温，再之后进入第二压缩机7继续升压升温；第二压缩机7排放的空气流经空气加热炉9吸热升温，之后进入燃烧室10；外部高品位燃料进入燃烧室10，与来自空气加热炉9的压缩空气混合并燃烧成高温高压燃气；燃烧室10产生的高温高压燃气流经燃气轮机8降压作功，流经高温回热器12和高温热交换器6逐步放热降温，之后对外排放，形成双燃料燃气-蒸汽联合循环动力装置。
图7/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
在图1/15所示的双燃料燃气-蒸汽联合循环动力装置中，蒸发器5增设燃气通道与外部连通；冷凝器4的冷凝液流经升压泵3升压之后进入蒸发器5，同时吸收来自汽轮机1的低压蒸汽和来自高温热交换器6排放的燃气中的热量，升温、蒸发和过热，之后提供给高温热交换器6，形成双燃料燃气-蒸汽联合循环动力装置。
图8/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，在图1/15所示的双燃料燃气-蒸汽联合循环动力装置中，增加供热器，将汽轮机1有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通调整为汽轮机1有低压蒸汽通道与供热器13连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通，供热器13还有被加热介质通道与外部连通，蒸 发器5增设燃气通道与外部连通。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温、汽化和过热，之后进入高温热交换器6吸热升温，压缩机2排放的蒸汽进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经汽轮机1降压作功，汽轮机1排放的低压蒸汽流经供热器13放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝；低品位燃料通过空气加热炉9和高品位燃料通过二段燃烧室10共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，空气和燃气通过进出流程带走低温热负荷，被加热介质通过供热器13带走中温热负荷；汽轮机1和燃气轮机8输出的功提供给压缩机2、第二压缩机7和外部作动力，或汽轮机1和燃气轮机8输出的功提供给压缩机2、升压泵3、第二压缩机7和外部作动力，形成双燃料燃气-蒸汽联合循环动力装置。
图9/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，在图1/15所示的双燃料燃气-蒸汽联合循环动力装置中，增加中温回热器，将蒸发器5有蒸汽通道与高温热交换器6连通调整为蒸发器5有蒸汽通道经中温回热器14与高温热交换器6连通，将压缩机2有蒸汽通道与高温热交换器6连通调整为压缩机2有蒸汽通道经中温回热器14与高温热交换器6连通，将汽轮机1有低压蒸汽通道与蒸发器5连通调整为汽轮机1有低压蒸汽通道经中温回热器14与蒸发器5连通。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温和汽化，流经中温回热器14继续吸热，之后进入高温热交换器6吸热升温；压缩机2排放的蒸汽流经中温回热器14吸热升温，之后进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经汽轮机1降压作功，汽轮机1排放的低压蒸汽流经中温回热器14和蒸发器5逐步放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝，形成双燃料燃气-蒸汽联合循环动力装置。
图10/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，在图1/15所示的双燃料燃气-蒸汽联合循环动力装置中，增加中温回热器，将蒸发器5有蒸汽通道与高温热交换器6连通调整为蒸发器5有蒸汽通道经中温回热器14与高温热交换器6连通，将压缩机2有蒸汽通道与高温热交换器6连通调整为压缩机2有蒸汽通道经中温回热器14与高温热交换器6连通，将汽轮机1有低压蒸汽通道与蒸发器5连通调整为汽轮机1有蒸汽通道经中温回热器14与自身连通之后汽轮机1再有低压蒸汽通道与蒸发器5连通。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温和汽化，流经中温回热器14继续吸热，之后进入高温热交换器6吸热升温；压缩机2排放的蒸汽流经中温回热器14吸热升温，之后进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽进入汽轮机1降压作功至一定程度之后流经中温回热器14放热降温，再之后进入汽轮机1继续降压作功；汽轮机1排放的低压蒸汽流经蒸发器5放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝，形成双燃料燃气-蒸汽联合循环动力装置。
图11/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，在图1/15所示的双燃料燃气-蒸汽联合循环动力装置中，增加第二升压泵和低温回热器，将冷凝器4有冷凝液管路与升压泵3连通调整为冷凝器4有冷凝液管路经第二升压泵15与低温回热器16连通，压缩机2设置抽汽通道与低温回热器16连通，低温回热器16再有冷凝液管路与升压泵3连通。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：冷凝器4排放的冷凝液流经第二升压泵15升压之后进入低温回热器16，与来自压缩机2的抽汽混合、吸热和升温，抽汽放热成冷凝液；低温回热器16的冷凝液流经升压泵3升压，流经蒸发器5吸热升温、汽化和过热，之后进入高温热交换器6吸热升温，压缩机2排放的蒸汽进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经汽轮机1降压作功，汽轮机1排放的低压蒸汽流经蒸发器5放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝；进入压缩机2的低压蒸汽升压升温至一定程度之后分成两路——第一路提供给低温回热器16，第二路继续升压升温之后进入高温热交换器6，形成双燃料燃气-蒸汽联合循环动力装置。
图12/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，在图1/15所示的双燃料燃气-蒸汽联合循环动力装置中，将高热交换器6有蒸汽通道与汽轮机1连通调整为高热交换器6有蒸汽通道经空气加热炉9与汽轮机1连通。
(2)流程上，外部低品位燃料进入空气加热炉9，外部第一路空气流经热源回热器11吸热升温之后进入空气加热炉9，低品位燃料和空气在空气加热炉9内混合并燃烧成温度较高的燃气，空气加热炉9内的燃气放热于流经其内的循环蒸汽和压缩空气并降温，之后流经热源回热器11放热降温和对外排放；外部第二路空气流经第二压缩机7升压升温，流经空气加热炉9吸热升温，之后进入燃烧室10；外部高品位燃料进入燃烧室10，与来自空气加热炉9的压缩空气混合并燃烧成高温高压燃气；燃烧室10产生的高温高压燃气流经燃气轮机8降压作功，流经高温热交换器6放热降温，之后对外排放；冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温、汽化和过热，之后进入高温热交换器6吸热升温，压缩机2排放的蒸汽进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经流经空气加热炉9吸热升温，之后进入汽轮机1降压作功；汽轮机1排放的低压蒸汽流经蒸发器5放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝；低品位燃料通过空气加热炉9和高品位燃料通过燃烧室10共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，空气和燃气通过进出流程带走低温热负荷；汽轮机1和燃气轮机8输出的功提供给压缩机2、第二压缩机7和外部作动力，或汽轮机1和燃气轮机8输出的功提供给压缩机2、升压泵3、第二压缩机7和外部作动力，形成双燃料燃气-蒸汽联合循环动力装置。
图13/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，在图1/15所示的双燃料燃气-蒸汽联合循环动力装置中，增加膨胀增速机17并取代汽轮机1，增加双能压缩机18并取代压缩机2，增加扩压管19并取代升压泵3。
(2)流程上，与图1/15所示的双燃料燃气-蒸汽联合循环动力装置相比较，不同之处在于：冷凝器4的冷凝液流经扩压管19降速升压，流经蒸发器5吸热升温、汽化和过热，之后进入高温热交换器6吸热升温，双能压缩机18排放的蒸汽进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经膨胀增速机17降压作功并增速，膨胀增速机17排放的低压 蒸汽流经蒸发器5放热并降温，之后分成两路——第一路进入双能压缩机18升压升温并降速，第二路进入冷凝器4放热并冷凝；低品位燃料通过空气加热炉9和高品位燃料通过燃烧室10共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，空气和燃气通过进出流程带走低温热负荷；膨胀增速机17和燃气轮机8输出的功提供给第二压缩机7、双能压缩机18和外部作动力，形成双燃料燃气-蒸汽联合循环动力装置。
图14/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、初段燃烧室和燃烧室所组成；外部有低品位燃料通道与初段燃烧室20连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道与第二压缩机7连通之后分成两路——第一路与初段燃烧室20连通和第二路经初段燃烧室20与燃烧室10连通，初段燃烧室20还有初段燃气通道与燃烧室10连通，燃烧室10还有燃气通道经燃气轮机8和高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，外部空气流经第二压缩机7升压升温之后分成两路——第一路直接进入初段燃烧室20参与燃烧，第二路流经初段燃烧室20吸热升温之后进入燃烧室10参与燃烧；外部低品位燃料进入初段燃烧室20，低品位燃料和空气在初段燃烧室20内混合并燃烧成温度较高的初段燃气，初段燃气放热于流经初段燃烧室20的空气之后提供给燃烧室10；外部高品位燃料进入燃烧室10，与来自初段燃烧室20的空气和初段燃气混合并燃烧成高温高压燃气，燃烧室10产生的高温高压燃气流经燃气轮机8降压作功，流经高温热交换器6放热降温，之后对外排放；冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温、汽化和过热，之后进入高温热交换器6吸热升温，压缩机2排放的蒸汽进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经汽轮机1降压作功，汽轮机1排放的低压蒸汽流经蒸发器5放热降温之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝；低品位燃料通过初段燃烧室20和高品位燃料通过燃烧室10共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，空气和燃气通过进出流程带走低温热负荷；汽轮机1和燃气轮机8输出的功提供给压缩机2、第二压缩机7和外部作动力，或汽轮机1和燃气轮机8输出的功提供给压缩机2、升压泵3、第二压缩机7和外部作动力，形成双燃料燃气-蒸汽联合循环动力装置。
图15/15所示的双燃料燃气-蒸汽联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、初段燃烧室和燃烧室所组成；外部有低品位燃料通道与初段燃烧室20连通，外部还有高品位燃料通道与燃烧室10连通，外部还有空气通道经第二压缩机7与初段燃烧室20连通，初段燃烧室20还有初段燃气通道与燃烧室10连通，燃烧室10还有燃气通道经燃气轮机8和高温热交换器6与外部连通；冷凝器4有冷凝液管路经升压泵3与蒸发器5连通之后蒸发器5再有蒸汽通道与高温热交换器6连通，压缩机2有蒸汽通道 与高温热交换器6连通，高温热交换器6还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道与蒸发器5连通之后分成两路——第一路与压缩机2连通和第二路与冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，汽轮机1连接压缩机2并传输动力，燃气轮机8连接第二压缩机7并传输动力。
(2)流程上，外部空气流经第二压缩机7升压升温之后进入初段燃烧室20，外部低品位燃料进入初段燃烧室20，低品位燃料和空气在初段燃烧室20内混合并燃烧成温度较高且富含空气的初段燃气，之后提供给燃烧室10；外部高品位燃料进入燃烧室10，与来自初段燃烧室20的初段燃气混合并燃烧成高温高压燃气，燃烧室10产生的高温高压燃气流经燃气轮机8降压作功和流经高温热交换器6放热降温之后对外排放；冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温、汽化和过热，之后进入高温热交换器6吸热升温，压缩机2排放的蒸汽进入高温热交换器6吸热升温；高温热交换器6排放的蒸汽流经汽轮机1降压作功，汽轮机1排放的低压蒸汽流经蒸发器5放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路进入冷凝器4放热并冷凝；低品位燃料通过初段燃烧室20和高品位燃料通过燃烧室10共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，空气和燃气通过进出流程带走低温热负荷；汽轮机1和燃气轮机8输出的功提供给压缩机2、第二压缩机7和外部作动力，或汽轮机1和燃气轮机8输出的功提供给压缩机2、升压泵3、第二压缩机7和外部作动力，形成双燃料燃气-蒸汽联合循环动力装置。
本发明技术可以实现的效果——本发明所提出的双燃料燃气-蒸汽联合循环动力装置，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)高温热负荷分级利用，显著降低温差不可逆损失，有效提升热变功效率。
(3)低品位燃料完成压缩空气温度提升并为高品位燃料提供，有效降低高品位燃料燃烧过程中的温差不可逆损失。
(4)低品位燃料结合高品位燃料为双燃料燃气-蒸汽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应用价值。
(5)低品位燃料可用于或有助于降低顶部燃气轮机循环系统压缩比，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。
(6)直接减少高品位燃料投入，其效果等同于提升高品位燃料转换为机械能的利用率。
(7)单独利用低品位燃料时，能够显著提升高温燃气品位，提升低品位燃料利用价值。
(8)大幅扩展燃气-蒸汽联合循环动力装置使用燃料的范围，降低装置能耗成本。
(9)提升燃料利用价值，减少温室气体排放，减少污染物排放，节能减排效益突出。
(10)结构简单，流程合理，方案丰富，有利于降低装置的制造成本和扩展技术应用范围。

Claims (15)

  1. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室和热源回热器所组成；外部有低品位燃料通道与空气加热炉(9)连通，外部还有空气通道经热源回热器(11)与空气加热炉(9)连通，空气加热炉(9)还有燃气通道经热源回热器(11)与外部连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道经第二压缩机(7)和空气加热炉(9)与燃烧室(10)连通，燃烧室(10)还有燃气通道经燃气轮机(8)和高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
  2. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉(9)连通，外部还有空气通道经热源回热器(11)与空气加热炉(9)连通，空气加热炉(9)还有燃气通道经热源回热器(11)与外部连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道经第二压缩机(7)、高温回热器(12)和空气加热炉(9)与燃烧室(10)连通，燃烧室(10)还有燃气通道经燃气轮机(8)、高温回热器(12)和高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
  3. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉(9)连通，外部还有空气通道经热源回热器(11)与空气加热炉(9)连通，空气加热炉(9)还有燃气通道经热源回热器(11)与外部连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道经第二压缩机(7)、空气加热炉(9)和高温回热器(12)与燃烧室(10)连通，燃烧室(10)还有燃气通道经燃气轮机(8)、高温回热器(12)和高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第 二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
  4. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉(9)连通，外部还有空气通道经热源回热器(11)与空气加热炉(9)连通，空气加热炉(9)还有燃气通道经热源回热器(11)与外部连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道经第二压缩机(7)、高温回热器(12)和空气加热炉(9)与燃烧室(10)连通，燃烧室(10)还有燃气通道与燃气轮机(8)连通之后燃气轮机(8)再有燃气通道经高温回热器(12)与自身连通，燃气轮机(8)还有燃气通道经高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
  5. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉(9)连通，外部还有空气通道经热源回热器(11)与空气加热炉(9)连通，空气加热炉(9)还有燃气通道经热源回热器(11)与外部连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道经第二压缩机(7)、空气加热炉(9)和高温回热器(12)与燃烧室(10)连通，燃烧室(10)还有燃气通道与燃气轮机(8)连通之后燃气轮机(8)再有燃气通道经高温回热器(12)与自身连通，燃气轮机(8)还有燃气通道经高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
  6. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、空气加热炉、燃烧室、热源回热器和高温回热器所组成；外部有低品位燃料通道与空气加热炉(9)连通，外部还有空气通道经热源回热器(11)与空气加热炉(9)连通，空气加热炉(9)还有燃气通道经热源回热器(11)与外部连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道与第二压缩机(7)连通之后第二压缩机(7)再有空气通道经高温回热器(12)与自身连通，第二压缩机(7)还有空气通道经空气加热炉(9)与燃烧室(10)连通，燃烧室(10)还有燃气通道经燃气轮机(8)、高温回热器(12)和高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交 换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
  7. 双燃料燃气-蒸汽联合循环动力装置，是在权利要求1-6所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，蒸发器(5)增设燃气通道与外部连通，形成双燃料燃气-蒸汽联合循环动力装置。
  8. 双燃料燃气-蒸汽联合循环动力装置，是在权利要求1-6所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加供热器，将汽轮机(1)有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通调整为汽轮机(1)有低压蒸汽通道与供热器(13)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通，供热器(13)还有被加热介质通道与外部连通，蒸发器(5)增设燃气通道与外部连通，形成双燃料燃气-蒸汽联合循环动力装置。
  9. 双燃料燃气-蒸汽联合循环动力装置，是在权利要求1-7所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加中温回热器，将蒸发器(5)有蒸汽通道与高温热交换器(6)连通调整为蒸发器(5)有蒸汽通道经中温回热器(14)与高温热交换器(6)连通，将压缩机(2)有蒸汽通道与高温热交换器(6)连通调整为压缩机(2)有蒸汽通道经中温回热器(14)与高温热交换器(6)连通，将汽轮机(1)有低压蒸汽通道与蒸发器(5)连通调整为汽轮机(1)有低压蒸汽通道经中温回热器(14)与蒸发器(5)连通，形成双燃料燃气-蒸汽联合循环动力装置。
  10. 双燃料燃气-蒸汽联合循环动力装置，是在权利要求1-7所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加中温回热器，将蒸发器(5)有蒸汽通道与高温热交换器(6)连通调整为蒸发器(5)有蒸汽通道经中温回热器(14)与高温热交换器(6)连通，将压缩机(2)有蒸汽通道与高温热交换器(6)连通调整为压缩机(2)有蒸汽通道经中温回热器(14)与高温热交换器(6)连通，将汽轮机(1)有低压蒸汽通道与蒸发器(5)连通调整为汽轮机(1)有蒸汽通道经中温回热器(14)与自身连通之后汽轮机(1)再有低压蒸汽通道与蒸发器(5)连通，形成双燃料燃气-蒸汽联合循环动力装置。
  11. 双燃料燃气-蒸汽联合循环动力装置，是在权利要求1-10所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，增加第二升压泵和低温回热器，将冷凝器(4)有冷凝液管路与升压泵(3)连通调整为冷凝器(4)有冷凝液管路经第二升压泵(15)与低温回热器(16)连通，压缩机(2)设置抽汽通道与低温回热器(16)连通，低温回热器(16)再有冷凝液管路与升压泵(3)连通，形成双燃料燃气-蒸汽联合循环动力装置。
  12. 双燃料燃气-蒸汽联合循环动力装置，是在权利要求1-11所述的任一一款双燃料燃气-蒸汽联合循环动力装置中，将高热交换器(6)有蒸汽通道与汽轮机(1)连通调整为高热交换器(6)有蒸汽通道经空气加热炉(9)与汽轮机(1)连通，形成双燃料燃气-蒸汽联合循环动力装置。
  13. 双燃料燃气-蒸汽联合循环动力装置，是在权利要求1-12所述的任一一款双燃料 燃气-蒸汽联合循环动力装置中，增加膨胀增速机(17)并取代汽轮机(1)，增加双能压缩机(18)并取代压缩机(2)，增加扩压管(19)并取代升压泵(3)，形成双燃料燃气-蒸汽联合循环动力装置。
  14. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、初段燃烧室和燃烧室所组成；外部有低品位燃料通道与初段燃烧室(20)连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道与第二压缩机(7)连通之后分成两路——第一路与初段燃烧室(20)连通和第二路经初段燃烧室(20)与燃烧室(10)连通，初段燃烧室(20)还有初段燃气通道与燃烧室(10)连通，燃烧室(10)还有燃气通道经燃气轮机(8)和高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
  15. 双燃料燃气-蒸汽联合循环动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、高温热交换器、第二压缩机、燃气轮机、初段燃烧室和燃烧室所组成；外部有低品位燃料通道与初段燃烧室(20)连通，外部还有高品位燃料通道与燃烧室(10)连通，外部还有空气通道经第二压缩机(7)与初段燃烧室(20)连通，初段燃烧室(20)还有初段燃气通道与燃烧室(10)连通，燃烧室(10)还有燃气通道经燃气轮机(8)和高温热交换器(6)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与蒸发器(5)连通之后蒸发器(5)再有蒸汽通道与高温热交换器(6)连通，压缩机(2)有蒸汽通道与高温热交换器(6)连通，高温热交换器(6)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道与蒸发器(5)连通之后分成两路——第一路与压缩机(2)连通和第二路与冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，燃气轮机(8)连接第二压缩机(7)并传输动力，形成双燃料燃气-蒸汽联合循环动力装置。
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