WO2022161112A1 - 双燃料联合循环蒸汽动力装置 - Google Patents

双燃料联合循环蒸汽动力装置 Download PDF

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Publication number
WO2022161112A1
WO2022161112A1 PCT/CN2022/000014 CN2022000014W WO2022161112A1 WO 2022161112 A1 WO2022161112 A1 WO 2022161112A1 CN 2022000014 W CN2022000014 W CN 2022000014W WO 2022161112 A1 WO2022161112 A1 WO 2022161112A1
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Prior art keywords
heating furnace
steam
heat source
compressor
dual
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PCT/CN2022/000014
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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 WO2022161112A1 publication Critical patent/WO2022161112A1/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
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers

Definitions

  • the invention belongs to the technical field of thermodynamics and thermodynamics.
  • the temperature of the fuel gas formed by the combustion of the fuel is closely related to the thermal power conversion efficiency; from the point of view of the gas temperature formed by combustion (such as the combustion temperature at constant pressure), the high-grade combustion gas with high combustion temperature at constant pressure is of high quality.
  • Fuel, with high combustion product temperature can independently become a high-temperature heat source that can meet high-efficiency power cycle and convert more mechanical energy; while low-grade fuel with low constant-pressure combustion temperature is difficult to form high-temperature combustion products, and it is difficult to become a high-efficiency power cycle.
  • the high temperature heat source converts relatively little mechanical energy.
  • the present invention provides a reasonable combination of low-grade fuel and high-grade fuel to jointly build a heat source, realizes learning from each other and complements each other's advantages, and can greatly improve the thermal change of low-grade fuel.
  • a dual-fuel combined cycle steam power plant that can reduce greenhouse gas emissions and effectively reduce fuel costs.
  • the main purpose of the present invention is to provide a dual-fuel combined cycle steam power plant, and the specific content of the invention is described as follows:
  • the dual-fuel combined cycle steam power plant is mainly composed of a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a heating furnace, a second heating furnace, a heat source regenerator and a second heat source regenerator; external There is a low-grade fuel channel that communicates with the heating furnace, an external air channel that communicates with the heating furnace through a heat source regenerator, and a heating furnace and a gas channel that communicates with the outside through the heat source regenerator.
  • the heating furnace is connected, and there is an external air passage that is connected to the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel that is connected to the outside through the second heat source regenerator;
  • the evaporator has a steam channel that communicates with the second heating furnace through the heating furnace
  • the compressor has a steam channel that communicates with the second heating furnace through the heating furnace
  • the second heating furnace also has a steam channel that communicates with the steam turbine.
  • the steam turbine also has a low-pressure steam channel that communicates with the evaporator and then divides it into two ways—the first way is connected to the compressor and the second way is communicated 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, forming a dual-fuel combined cycle steam power plant; in which, the or steam turbine connects the compressor and the booster pump and transmits the power.
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, heating furnace, second heating furnace, heat source regenerator, second heat source regenerator and high temperature regenerator It consists of a low-grade fuel channel on the outside that communicates with the heating furnace, an air channel on the outside that communicates with the heating furnace through a heat source regenerator, and a heating furnace and a gas channel that communicates with the outside through the heat source regenerator.
  • the fuel channel is communicated with the second heating furnace, and the external air channel is communicated with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the condenser has The condensate pipeline is connected with the evaporator through the booster pump, and then the evaporator has a steam channel connected with the second heating furnace through the high temperature regenerator and the heating furnace, and the compressor has a steam channel connected with the second heating furnace through the high temperature regenerator and the heating furnace.
  • the heating furnace is connected, the second heating furnace also has a steam passage that communicates with the steam turbine, and the steam turbine also has a low-pressure steam passage that is connected to the evaporator through a high temperature regenerator and then divided into two paths—the first path is connected to the compressor and the second path is connected to the condensate.
  • the condenser and the cooling medium channel are communicated with the outside, and the steam turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle steam power plant; wherein, the or steam turbine is connected to the compressor and the booster pump and transmits power.
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, heating furnace, second heating furnace, heat source regenerator, second heat source regenerator and high temperature regenerator It consists of a low-grade fuel channel on the outside that communicates with the heating furnace, an air channel on the outside that communicates with the heating furnace through a heat source regenerator, and a heating furnace and a gas channel that communicates with the outside through the heat source regenerator.
  • the fuel channel is communicated with the second heating furnace, and the external air channel is communicated with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the condenser has The condensate pipeline is connected with the evaporator through the booster pump, and then the evaporator has a steam channel connected with the second heating furnace through the high temperature regenerator and the heating furnace, and the compressor has a steam channel connected with the second heating furnace through the high temperature regenerator and the heating furnace.
  • the heating furnace is connected, the second heating furnace also has a steam channel that is connected to the steam turbine, and then the steam turbine has a steam channel that communicates with itself through the high-temperature regenerator.
  • the compressor is communicated with the second path and the condenser; the condenser also has a cooling medium channel communicated with the outside, and the steam turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle steam power plant; wherein, the steam turbine is connected to the compressor and the booster pump and transmit power.
  • the dual-fuel combined cycle steam power plant is mainly composed of a steam turbine, a compressor, a booster pump, a condenser, a heating furnace, a second heating furnace, a heat source regenerator, a second heat source regenerator and a heat supply unit;
  • the external low-grade fuel channel is connected with the heating furnace, the external air channel is connected with the heating furnace through the heat source regenerator, and the heating furnace has a gas channel connected with the outside through the heat source regenerator; there is also a high-grade fuel channel on the outside.
  • the two heating furnaces are connected, and there is an external air channel that is connected to the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel that is connected to the outside through the second heat source regenerator;
  • the heating furnace has a steam channel connected with the second heating furnace, the compressor has a steam channel connected with the second heating furnace, the second heating furnace also has a steam channel connected with the steam turbine, and the steam turbine has a low pressure
  • the steam channel is connected with the heater, it is divided into two paths - the first path is connected with the compressor and the second path is connected with the condenser; the condenser and the cooling medium channel are connected with the outside, and the heater and the heated medium channel are connected with the outside.
  • the steam turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle steam power plant; wherein, the or steam turbine is connected to the compressor and the booster pump and transmits the power.
  • the dual-fuel combined cycle steam power plant is mainly composed of a steam turbine, a compressor, a booster pump, a condenser, an evaporator, a heating furnace, a second heating furnace, a heat source regenerator and a second heat source regenerator; external There is a low-grade fuel channel that communicates with the heating furnace, an external air channel that communicates with the heating furnace through a heat source regenerator, and a heating furnace and a gas channel that communicates with the outside through the heat source regenerator.
  • the heating furnace is connected, and there is an external air passage that is connected to the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel that is connected to the outside through the second heat source regenerator;
  • the evaporator has a steam channel that communicates with the heating furnace.
  • the heating furnace also has a steam channel that communicates with the steam turbine through an intermediate port.
  • the compressor has a steam channel that communicates with the second heating furnace through the heating furnace.
  • the furnace also has a steam channel that communicates with the steam turbine, and the steam turbine also has a low-pressure steam channel that communicates with the evaporator and then divides it 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 with the outside.
  • the steam turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle steam power plant; wherein, the steam turbine is connected to the compressor and the booster pump and transmits the power.
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, heating furnace, second heating furnace, heat source regenerator, second heat source regenerator and second steam turbine It consists of a low-grade fuel channel on the outside that communicates with the heating furnace, an air channel on the outside that communicates with the heating furnace through a heat source regenerator, and a gas channel in the heating furnace that communicates with the outside through the heat source regenerator. There are also high-grade fuel on the outside.
  • the channel is communicated with the second heating furnace, and there is an external air channel that communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel that communicates with the outside through the second heat source regenerator;
  • the evaporator has a steam channel connected with the second steam turbine
  • the second steam turbine also has a low-pressure steam channel connected with the evaporator
  • the compressor has a steam channel through the heating furnace and the second heating furnace.
  • the second heating furnace also has a steam channel that communicates with the steam turbine, the steam turbine also has a low-pressure steam channel that communicates with the evaporator, and the evaporator and a low-pressure steam channel communicate with the compressor and the condenser respectively; the condenser and the cooling medium channel communicate with the outside Connected, the steam turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle steam power plant; wherein, the steam turbine is connected to the compressor and the booster pump and transmits the power.
  • a dual-fuel combined cycle steam power plant in any of the dual-fuel combined cycle steam power plants described in items 1 to 6, the second heating furnace is adjusted to have a steam passage connected with the steam turbine to be the second heating furnace After the steam passage is communicated with the steam turbine, the steam turbine and the reheat steam passage are communicated with itself through the heating furnace to form a dual-fuel combined cycle steam power plant.
  • a dual-fuel combined cycle steam power plant in any of the dual-fuel combined cycle steam power plants described in items 1 to 6, the second heating furnace is adjusted to have a steam passage communicating with the steam turbine to be the second heating furnace After the steam passage is communicated with the steam turbine, the steam turbine and the reheat steam passage are communicated with itself through the second heating furnace to form a dual-fuel combined cycle steam power plant.
  • a dual-fuel combined cycle steam power plant in any of the dual-fuel combined cycle steam power plants described in items 1-6, the second heating furnace is adjusted to have a steam passage communicating with the steam turbine to be the second heating furnace After the steam passage is communicated with the steam turbine, the steam turbine and the reheat steam passage are communicated with itself through the heating furnace and the second heating furnace to form a dual-fuel combined cycle steam power plant.
  • the dual-fuel combined cycle steam power plant is any one of the dual-fuel combined cycle steam power plants described in Items 1-9, adding an expansion speed increaser and replacing the steam turbine, adding a dual-energy compressor and replacing the compressor
  • the diffuser tube is added and the booster pump is replaced to form a dual-fuel combined cycle steam power plant.
  • the dual-fuel combined cycle steam power plant is to add a low-temperature regenerator and a second booster pump to any one of the dual-fuel combined cycle steam power plants described in items 1 to 9, and the condenser has a condensing capacity.
  • the connection between the liquid pipeline and the booster pump is adjusted so that the condenser has a condensate pipeline connected to the low-temperature regenerator through the second booster pump, and the compressor adds an extraction channel to connect with the low-temperature regenerator, and the low-temperature regenerator has condensation again.
  • the liquid pipeline is communicated with the booster pump to form a dual-fuel combined cycle steam power plant.
  • the dual-fuel combined cycle steam power plant is any one of the dual-fuel combined cycle steam power plants described in item 11, adding an expansion speed increaser and replacing the steam turbine, adding a dual-energy compressor and replacing the compressor, A diffuser pipe is added to replace the booster pump, and a second diffuser pipe is added to replace the second booster pump to form a dual-fuel combined cycle steam power plant.
  • the dual-fuel combined cycle steam power plant cancels the second heat source regenerator, and regenerates the external air channel through the heat source
  • the external air channel is connected with the heating furnace and the external air channel is connected with the second heating furnace through the second heat source regenerator.
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, booster pump, condenser, evaporator, heating furnace, second heating furnace, heat source regenerator, second heat source regenerator and second steam turbine It consists of a low-grade fuel channel on the outside that communicates with the heating furnace, an air channel on the outside that communicates with the heating furnace through a heat source regenerator, and a gas channel in the heating furnace that communicates with the outside through the heat source regenerator. There are also high-grade fuel on the outside.
  • the channel is communicated with the second heating furnace, and there is an external air channel that communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel that communicates with the outside through the second heat source regenerator;
  • the liquid pipeline is connected to the evaporator through the booster pump, and then the evaporator has a steam channel that communicates with the second heating furnace through the heating furnace.
  • the compressor has a steam channel that communicates with the second heating furnace through the heating furnace.
  • the second heating furnace also has steam.
  • the channel is connected with the steam turbine, and the steam turbine and the low-pressure steam channel are connected with the evaporator and then divided into two paths - the first path is directly connected with the compressor and the second path is connected with the condenser through the second steam turbine; the condenser also has a cooling medium channel and Externally connected, the steam turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle steam power plant.
  • 1/12 is a first principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Figure 2/12 is a second principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Figure 3/12 is a third principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Figure 4/12 is a fourth principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 5/12 is the fifth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 6/12 is the sixth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • 7/12 is the seventh principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 8/12 is the eighth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 9/12 is the ninth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • 10/12 is a tenth principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 11/12 is an eleventh principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 12/12 is a twelfth principle thermodynamic system diagram of a dual-fuel combined cycle steam 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.
  • heat exchange tube bundles are installed inside the heating furnace to heat the medium flowing through it - including the heat exchanger for heating the medium, and the evaporator for heated vaporization and the reheating device for reheating the steam. Heater etc.
  • the heat source regenerator involves the temperature grade of the gas in the heating furnace (ie, the high temperature section of the heat source), which is listed separately.
  • 1Low-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 fuels. 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.
  • 2High-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; 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, low-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 residues, can be utilized when they contain thermal energy (the utilization process and equipment are included in the The preheated air in the heating furnace or outside the heating furnace body) is discharged after it is not listed separately, and its function is not described separately.
  • the fuel channel is communicated with the heating furnace 6, and there is an external air channel that is communicated with the heating furnace 6 through the heat source regenerator 8.
  • the heating furnace 6 also has a gas channel communicated with the outside through the heat source regenerator 8;
  • the second heating furnace 7 communicates with the outside, and there is an external air channel that communicates with the second heating furnace 7 through the second heat source regenerator 9.
  • the second heating furnace 7 also has a gas channel that communicates with the outside through the second heat source regenerator 9; condensation
  • the compressor 4 has a condensate pipeline that is connected to the evaporator 5 through the booster pump 3, and then the evaporator 5 has a steam channel that communicates with the second heating furnace 7 through the heating furnace 6.
  • the compressor 2 has a steam channel that communicates with the second heating furnace 6 through the heating furnace 6.
  • the heating furnace 7 is connected, the second heating furnace 7 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 evaporator 5.
  • the condenser 4 is communicated; the condenser 4 also has a cooling medium channel communicated with the outside, and the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the external low-grade fuel enters the heating furnace 6, and the first external air flows through the heat source regenerator 8 and enters the heating furnace 6 after absorbing heat and heating up, and the low-grade fuel and air are mixed in the heating furnace 6 and burned into a
  • the gas in the heating furnace 6 releases heat to the circulating working medium flowing through it and cools down, and then flows through the heat source regenerator 8 to release heat to cool down and discharge to the outside;
  • the external high-grade fuel enters the second heating furnace 7.
  • the external second air flows through the second heat source regenerator 9 and then enters the second heating furnace 7 after absorbing heat and heating up.
  • the high-grade fuel and air are mixed in the second heating furnace 7 and burned into high temperature gas, and the high temperature gas releases heat
  • the circulating working medium flows through it and cools down, and then flows through the second heat source regenerator 9 to release heat and cool down and discharge to the outside;
  • the heat rises and vaporizes flows through the heating furnace 6 and continues to absorb heat, then enters the second heating furnace 7 to absorb heat and heat up, and the steam discharged from the compressor 2 flows through the heating furnace 6 and the second heating furnace 7 and gradually absorbs heat to heat up;
  • the steam discharged from the furnace 7 flows through the steam turbine 1 to depressurize and perform work, and the low-pressure steam discharged from the steam turbine 1 flows through the evaporator 5 to release heat and cool down, and then is divided into two paths - the first path enters the compressor 2 to increase the pressure and heat up, and the second path Enter the condenser 4 to release heat and condense;
  • the low-grade fuel passes through the heating furnace 6 and the high-grade
  • the high-grade fuel channel is communicated with the second heating furnace 7, and the external air channel is communicated with the second heating furnace 7 through the second heat source regenerator 9, and the second heating furnace 7 also has a gas channel through the second heat source regenerator 9.
  • the condenser 4 has a condensate pipeline that is communicated with the evaporator 5 through the booster pump 3, and then the evaporator 5 has a steam channel to communicate with the second heating furnace 7 through the high temperature regenerator 10 and the heating furnace 6, and the compressor 2.
  • the second heating furnace 7 also has a steam channel connected with the steam turbine 1, and the steam turbine 1 also has a low pressure steam channel through the high temperature regenerator 10.
  • the evaporator 5 After the evaporator 5 is connected, it 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, and the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the second heating furnace 7 gradually absorbs heat and raises the temperature; the steam discharged from the second heating furnace 7 flows through the steam turbine 1 to depressurize and perform work, and the low-pressure steam discharged from the steam turbine 1 flows through the high temperature regenerator 10 and the evaporator 5 to gradually release heat and cool down, and then 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, forming a dual-fuel combined cycle steam power plant.
  • the high-grade fuel channel is communicated with the second heating furnace 7, and the external air channel is communicated with the second heating furnace 7 through the second heat source regenerator 9, and the second heating furnace 7 also has a gas channel through the second heat source regenerator 9.
  • the condenser 4 has a condensate pipeline that is communicated with the evaporator 5 through the booster pump 3, and then the evaporator 5 has a steam channel to communicate with the second heating furnace 7 through the high temperature regenerator 10 and the heating furnace 6, and the compressor 2.
  • the steam turbine 1 also has a low-pressure steam passage that communicates with the evaporator 5 and then is 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 channel communicated with the outside,
  • the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the second heating furnace 7 gradually absorbs heat and heats up; the steam discharged from the second heating furnace 7 enters the steam turbine 1 to depressurize the work to a certain extent, and then flows through the high temperature regenerator 10 to release heat and cool down, and then enters the steam turbine 1 to continue to depressurize and work; the steam turbine 1
  • the discharged low-pressure steam flows through the evaporator 5 to release heat and cool down, and then is divided into two paths - the first path enters the compressor 2 to increase pressure and temperature, and the second path enters the condenser 4 to release heat and condense, forming a dual-fuel combined cycle steam power plant. .
  • the grade fuel channel is communicated with the heating furnace 6, and the external air channel is communicated with the heating furnace 6 through the heat source regenerator 8.
  • the heating furnace 6 also has a gas channel communicated with the outside through the heat source regenerator 8; there are also high-grade fuel channels outside.
  • the condenser 4 has a condensate pipeline that is connected to the heating furnace 6 through the booster pump 3, and then the heating furnace 6 has a steam channel that communicates with the second heating furnace 7.
  • the compressor 2 has a steam channel that communicates with the second heating furnace 7.
  • the second heating furnace 7 has a steam channel.
  • the heating furnace 7 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 is communicated with the heater 11 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; condensation
  • the heater 4 also has a cooling medium channel to communicate with the outside, the heater 11 also has a heated medium channel to communicate with the outside, and the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the discharged low-pressure steam flows through the heater 11 to release heat and cool down, and then it is divided into two paths - the first path enters the compressor 2 for boosting and heating, and the second path enters the condenser 4 to release heat and condense; the low-grade fuel is heated by The furnace 6 and the high-grade fuel jointly provide the high-temperature driving heat load through the second heating furnace 7, the cooling medium takes away the low-temperature heat load through the condenser 4, and the heated medium takes away the medium-temperature heat load through the heater 11, forming a dual-fuel combination. Cyclic steam power plant.
  • the fuel channel is communicated with the heating furnace 6, and there is an external air channel that is communicated with the heating furnace 6 through the heat source regenerator 8.
  • the heating furnace 6 also has a gas channel communicated with the outside through the heat source regenerator 8;
  • the second heating furnace 7 communicates with the outside, and there is an external air channel that communicates with the second heating furnace 7 through the second heat source regenerator 9.
  • the second heating furnace 7 also has a gas channel that communicates with the outside through the second heat source regenerator 9; condensation
  • the evaporator 4 has a condensate pipeline connected to the evaporator 5 through the booster pump 3, and then the evaporator 5 has a steam channel that communicates with the heating furnace 6.
  • the heating furnace 6 also has a steam channel that communicates with the steam turbine 1 through the intermediate port, and the compressor 2 has a The steam passage is communicated with the second heating furnace 7 through the heating furnace 6, and the second heating furnace 7 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 and the The compressor 2 is communicated with the second path and the condenser 4 is communicated; the condenser 4 also has a cooling medium channel communicated with the outside, and the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the heating furnace 6 also has a gas channel that communicates with the outside through the heat source regenerator 8;
  • the grade fuel channel is communicated with the second heating furnace 7, and there is an external air channel which is communicated with the second heating furnace 7 through the second heat source regenerator 9, and the second heating furnace 7 also has a gas channel through the second heat source regenerator 9 to communicate with the second heating furnace 7.
  • External communication the condenser 4 has a condensate pipeline that is connected to the evaporator 5 through the booster pump 3, and then the evaporator 5 has a steam channel to communicate with the second steam turbine 12, and the second steam turbine 12 also has a low-pressure steam channel to communicate with the evaporator 5.
  • the compressor 2 has a steam channel that communicates with the second heating furnace 7 through the heating furnace 6, the second heating furnace 7 also has a steam channel that communicates with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam channel that communicates with the evaporator 5, and the evaporator 5 also There are low-pressure steam passages that communicate with the compressor 2 and the condenser 4 respectively; the condenser 4 also has a cooling medium passage that communicates with the outside, and the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the second heating furnace 7 has a steam passage communicating with the steam turbine 1 and is adjusted so that the second heating furnace 7 has a steam passage communicating with the steam turbine 1 Afterwards, the steam turbine 1 and the reheat steam passage communicate with itself via the second heating furnace 7 .
  • the steam discharged by the second heating furnace 7 flows through the expansion speed-up machine 13 to depressurize the work and increase the speed, and the low-pressure steam discharged by the expansion speed-up machine 13 flows through the evaporator 5 to release heat and cool down, and is then divided into two paths—the first One way enters the dual-energy compressor 14 to increase the pressure and heat up and decelerates, and the second way enters the condenser 4 to release heat and condense, and the work output by the expansion and speed-up machine 13 is provided to the dual-energy compressor 14 and the external power to form dual fuel.
  • Combined cycle steam power plant is provided to the dual-energy compressor 14 and the external power to form dual fuel.
  • the first route enters the dual-energy compressor 14 to increase the pressure and heat up and slow down, and the second route enters the condenser 4 to release heat and condense; the low-pressure steam entering the dual-energy compressor 14 is boosted, heated, and decelerated to a certain extent. Divided into two paths - the first path is supplied to the low-temperature regenerator 16, and the second path continues to increase the pressure and heat up and then enters the heating furnace 6 to form a dual-fuel combined cycle steam power plant.
  • the difference from the dual-fuel combined cycle steam power plant shown in Figure 1/12 is that the gas discharged from the second heating furnace 7 flows through the heat source regenerator 8 and is discharged to the outside after the heat is released and cooled.
  • the heat source regenerator 8 absorbs heat and warms up, it is divided into two paths - the first path enters the heating furnace 6 to participate in combustion, and the second path enters the second heating furnace 7 to participate in combustion, forming a dual-fuel combined cycle steam power plant.
  • the heating furnace 6 also has a gas channel that communicates with the outside through the heat source regenerator 8;
  • the grade fuel channel is communicated with the second heating furnace 7, and there is an external air channel which is communicated with the second heating furnace 7 through the second heat source regenerator 9, and the second heating furnace 7 also has a gas channel through the second heat source regenerator 9 to communicate with the second heating furnace 7.
  • External communication condenser 4 has a condensate pipeline that is connected to evaporator 5 through booster pump 3, and then evaporator 5 has a steam channel to communicate with the second heating furnace 7 through heating furnace 6, and compressor 2 has a steam channel to communicate with the second heating furnace 7.
  • the second heating furnace 7 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 is divided into two paths—the first path is directly communicated with the compressor 2 And the second path is communicated with the condenser 4 through the second steam turbine 12; the condenser 4 also has a cooling medium channel to communicate with the outside, and the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the external low-grade fuel enters the heating furnace 6, and the first external air flows through the heat source regenerator 8 and enters the heating furnace 6 after absorbing heat and heating up, and the low-grade fuel and air are mixed in the heating furnace 6 and burned into a
  • the gas in the heating furnace 6 releases heat to the circulating working medium flowing through it and cools down, and then flows through the heat source regenerator 8 to release heat to cool down and discharge to the outside;
  • the external high-grade fuel enters the second heating furnace 7.
  • the external second air flows through the second heat source regenerator 9 and then enters the second heating furnace 7 after absorbing heat and heating up.
  • the high-grade fuel and air are mixed in the second heating furnace 7 and burned into high temperature gas, and the high temperature gas releases heat
  • the circulating working medium flows through it and cools down, and then flows through the second heat source regenerator 9 to release heat and cool down and discharge to the outside;
  • the heat rises and vaporizes flows through the heating furnace 6 and continues to absorb heat, then enters the second heating furnace 7 to absorb heat and heat up, and the steam discharged from the compressor 2 flows through the heating furnace 6 and the second heating furnace 7 and gradually absorbs heat to heat up;
  • the steam discharged from the furnace 7 flows through the steam turbine 1 to depressurize and perform work, and the low-pressure steam discharged from the steam turbine 1 flows through the evaporator 5 to release heat and cool down, and then is divided into two paths - the first path enters the compressor 2 to increase the pressure and heat up, and the second path After passing through the second steam turbine 12 to decompress and perform work, it enters the condenser 4 to release heat and condense;
  • the work output by the steam turbine 1 and the second steam turbine 12 is provided to the compressor 2 and the external power, or the work output by the steam turbine 1 and the second steam turbine 12 is provided to the compressor 2, the booster pump 3 and the external power , forming a dual-fuel combined cycle steam power plant.

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Abstract

本发明提供双燃料联合循环蒸汽动力装置，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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；冷凝器经升压泵、蒸发器和加热炉与第二加热炉连通，压缩机经加热炉与第二加热炉连通，第二加热炉还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器分别与压缩机和冷凝器连通；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，形成双燃料联合循环蒸汽动力装置。

Description

双燃料联合循环蒸汽动力装置 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，将燃料的化学能通过燃烧转换为热能，进而通过蒸汽动力装置再将热能转换为机械能，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，其中燃料燃烧形成燃气的温度高低与热变功效率密切相关；从燃烧形成的燃气温度(比如定压燃烧温度)来看，定压燃烧温度高的高品位燃料，燃烧产物温度高，可单独成为能够满足高效动力循环的高温热源，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，难以单独成为能够满足高效动力循环的高温热源，转化的机械能相对较少。
由于受限于工作原理，或受限于工作介质的性质，或受限于材料性质，或受限于压缩设备及其它部件的制造水平等原因，在现行采用高品位燃料的蒸汽动力装置中，其所用高品位燃料形成的高温热源利用过程中，部分燃烧热承担热源的低温段供给，这导致燃料利用上的质量损失——这为低品位燃料参与构建热源提供了机遇。
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共建热源，实现取长补短和优势互补，能够大幅度提高低品位燃料热变功效率，减少温室气体排放，有效降低燃料成本的双燃料联合循环蒸汽动力装置。发明内容：
本发明主要目的是要提供双燃料联合循环蒸汽动力装置，具体发明内容分项阐述如下：
1.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；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经加热炉与第二加热炉连通，压缩机有蒸汽通道经加热炉与第二加热炉连通，第二加热炉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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机连接压缩机和升压泵并传输动力。
2.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器 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经高温回热器和加热炉与第二加热炉连通，压缩机有蒸汽通道经高温回热器和加热炉与第二加热炉连通，第二加热炉还有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道经高温回热器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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机连接压缩机和升压泵并传输动力。
3.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；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经高温回热器和加热炉与第二加热炉连通，压缩机有蒸汽通道经高温回热器和加热炉与第二加热炉连通，第二加热炉还有蒸汽通道与汽轮机连通之后汽轮机再有蒸汽通道经高温回热器与自身连通，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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机连接压缩机和升压泵并传输动力。
4.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、加热炉、第二加热炉、热源回热器、第二热源回热器和供热器所组成；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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；冷凝器有冷凝液管路经升压泵与加热炉连通之后加热炉再有蒸汽通道与第二加热炉连通，压缩机有蒸汽通道与第二加热炉连通，第二加热炉还有蒸汽通道与汽轮机连通，汽轮机还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；冷凝器还有冷却介质通道与外部连通，供热器还有被加热介质通道与外部连通，汽轮机连接压缩机并传输动力，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机连接压缩机和升压泵并传输动力。
5.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；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加热炉连通，加热炉还有蒸汽通道通过中间端口与汽轮机连通，压缩机有蒸汽通道经加热炉与第二加热炉连通，第二加热炉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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机连接压缩机和升压泵并传输动力。
6.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二热源回热器和第二汽轮机所组成；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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；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第二汽轮机连通，第二汽轮机还有低压蒸汽通道与蒸发器连通，压缩机有蒸汽通道经加热炉与第二加热炉连通，第二加热炉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，蒸发器还有低压蒸汽通道分别与压缩机和冷凝器连通；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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机连接压缩机和升压泵并传输动力。
7.双燃料联合循环蒸汽动力装置，是在第1-6项所述的任一一款双燃料联合循环蒸汽动力装置中，将第二加热炉有蒸汽通道与汽轮机连通调整为第二加热炉有蒸汽通道与汽轮机连通之后汽轮机还有再热蒸汽通道经加热炉与自身连通，形成双燃料联合循环蒸汽动力装置。
8.双燃料联合循环蒸汽动力装置，是在第1-6项所述的任一一款双燃料联合循环蒸汽动力装置中，将第二加热炉有蒸汽通道与汽轮机连通调整为第二加热炉有蒸汽通道与汽轮机连通之后汽轮机还有再热蒸汽通道经第二加热炉与自身连通，形成双燃料联合循环蒸汽动力装置。
9.双燃料联合循环蒸汽动力装置，是在第1-6项所述的任一一款双燃料联合循环蒸汽动力装置中，将第二加热炉有蒸汽通道与汽轮机连通调整为第二加热炉有蒸汽通道与汽轮机连通之后汽轮机还有再热蒸汽通道经加热炉和第二加热炉与自身连通，形成双燃料联合循环蒸汽动力装置。
10.双燃料联合循环蒸汽动力装置，是在第1-9项所述的任一一款双燃料联合循环蒸汽动力装置中，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，形成双燃料联合循环蒸汽动力装置。
11.双燃料联合循环蒸汽动力装置，是在第1-9项所述的任一一款双燃料联合循环蒸汽动力装置中，增加低温回热器和第二升压泵，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，压缩机增设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，形成双燃料联合循环蒸汽动力装置。
12.双燃料联合循环蒸汽动力装置，是在第11项所述的任一一款双燃料联合循环蒸汽动力装置中，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，增加第二扩压管并取代第二升压泵，形成双燃料联合循环蒸汽动力装置。
13.双燃料联合循环蒸汽动力装置，是在第1-12项所述的任一一款双燃料联合循环蒸汽动力装置中，取消第二热源回热器，将外部有空气通道经热源回热器与加热炉连通和外部有空气通道经第二热源回热器与第二加热炉连通，调整为外部有空气通道与热源回热器 连通之后分成两路——第一路与加热炉连通，第二路与第二加热炉连通；将第二加热炉有燃气通道经第二热源回热器与外部连通调整为第二加热炉有燃气通道经热源回热器与外部连通，形成双燃料联合循环蒸汽动力装置。
14.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二热源回热器和第二汽轮机所组成；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第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；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经加热炉与第二加热炉连通，压缩机有蒸汽通道经加热炉与第二加热炉连通，第二加热炉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——第一路直接与压缩机连通和第二路经第二汽轮机与冷凝器连通；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，形成双燃料联合循环蒸汽动力装置。
附图说明：
图1/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第1种原则性热力系统图。
图2/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第2种原则性热力系统图。
图3/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第3种原则性热力系统图。
图4/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第4种原则性热力系统图。
图5/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第5种原则性热力系统图。
图6/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第6种原则性热力系统图。
图7/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第7种原则性热力系统图。
图8/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第8种原则性热力系统图。
图9/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第9种原则性热力系统图。
图10/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第10种原则性热力系统图。
图11/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第11种原则性热力系统图。
图12/12是依据本发明所提供的双燃料联合循环蒸汽动力装置第12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，6-加热炉，7-第二加热炉，8-热源回热器，9-第二热源回热器，10-高温回热器，11-供热器，12-第二汽轮机，13-膨胀增速机，14-双能压缩机，15-扩压管，16-低温回热器，17-第二升压泵，18-第二扩压管。
关于膨胀增速机、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13在工作流程上的区别，这里作如下解释：
①图1/12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8/12中，膨胀增速机13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15降速升压需要，同时满足双能压缩机14部分升压(降速而得)的需要。
③对图1/12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8/12中蒸汽流经膨胀增速机13实现热变功的过程采用“降压作功并增速”来表示。
(2)加热炉和热源回热器：
①根据需要，加热炉内部设置换热管束，对流经其内的介质进行加热——包括用于介质升温的热交换器，还可设置用于受热汽化的蒸发器和对蒸汽进行再热的再热器等。
②不具体指明循环介质流经加热炉受热时所涉及到的具体换热管束，而统一采用加热炉来表述。
③热源回热器涉及加热炉内燃气(即热源高温段)的温度品位，单独列出。
(3)低品位燃料和高品位燃料：
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，低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——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1/12所示的双燃料联合循环蒸汽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、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料通道与加热炉6连通，外部还有空气通道经热源回热器8与加热炉6连通，加热炉6还有燃气通道经热源回热器8与外部连通；外部还有高品位燃料通道与第二加热炉7连通，外部还有空气通道经第二热源回热器9与第二加热炉7连通，第二加热炉7还有燃气通道经第二热源回热器9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再有蒸汽通道经加热炉6与第二加热炉7连通，压缩机2有蒸汽通道经加热炉6与第二加热炉7连通，第二加 热炉7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。
(2)流程上，外部低品位燃料进入加热炉6，外部第一路空气流经热源回热器8吸热升温之后进入加热炉6，低品位燃料和空气在加热炉6内混合并燃烧成温度较高的燃气，加热炉6内的燃气放热于流经其内的循环工质并降温，之后流经热源回热器8放热降温和对外排放；外部高品位燃料进入第二加热炉7，外部第二路空气流经第二热源回热器9吸热升温之后进入第二加热炉7，高品位燃料和空气在第二加热炉7内混合并燃烧成高温燃气，高温燃气放热于流经其内的循环工质并降温，之后流经第二热源回热器9放热降温和对外排放；冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温和汽化，流经加热炉6继续吸热，之后进入第二加热炉7吸热升温，压缩机2排放的蒸汽流经加热炉6和第二加热炉7逐步吸热升温；第二加热炉7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；低品位燃料通过加热炉6和高品位燃料通过第二加热炉7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；汽轮机1输出的功提供给压缩机2和外部作动力，或汽轮机1输出的功提供给压缩机2、升压泵3和外部作动力，形成双燃料联合循环蒸汽动力装置。
图2/12所示的双燃料联合循环蒸汽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、加热炉、第二加热炉、热源回热器、第二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加热炉6连通，外部还有空气通道经热源回热器8与加热炉6连通，加热炉6还有燃气通道经热源回热器8与外部连通；外部还有高品位燃料通道与第二加热炉7连通，外部还有空气通道经第二热源回热器9与第二加热炉7连通，第二加热炉7还有燃气通道经第二热源回热器9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再有蒸汽通道经高温回热器10和加热炉6与第二加热炉7连通，压缩机2有蒸汽通道经高温回热器10和加热炉6与第二加热炉7连通，第二加热炉7还有蒸汽通道与汽轮机1连通，汽轮机1还有低压蒸汽通道经高温回热器10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。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置相比较，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，流经高温回热器10和加热炉6继续吸热，之后进入第二加热炉7吸热升温，压缩机2排放的蒸汽流经高温回热器10、加热炉6和第二加热炉7逐步吸热升温；第二加热炉7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高温回热器10和蒸发器5逐步放热降温，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，形成双燃料联合循环蒸汽动力装置。
图3/12所示的双燃料联合循环蒸汽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、加热炉、第二加热 炉、热源回热器、第二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加热炉6连通，外部还有空气通道经热源回热器8与加热炉6连通，加热炉6还有燃气通道经热源回热器8与外部连通；外部还有高品位燃料通道与第二加热炉7连通，外部还有空气通道经第二热源回热器9与第二加热炉7连通，第二加热炉7还有燃气通道经第二热源回热器9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再有蒸汽通道经高温回热器10和加热炉6与第二加热炉7连通，压缩机2有蒸汽通道经高温回热器10和加热炉6与第二加热炉7连通，第二加热炉7还有蒸汽通道与汽轮机1连通之后汽轮机1再有蒸汽通道经高温回热器10与自身连通，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。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置相比较，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，流经高温回热器10和加热炉6继续吸热，之后进入第二加热炉7吸热升温，压缩机2排放的蒸汽流经高温回热器10、加热炉6和第二加热炉7逐步吸热升温；第二加热炉7排放的蒸汽进入汽轮机1降压作功至一定程度之后流经高温回热器10放热降温，然后进入汽轮机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，形成双燃料联合循环蒸汽动力装置。
图4/12所示的双燃料联合循环蒸汽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、加热炉、第二加热炉、热源回热器、第二热源回热器和供热器所组成；外部有低品位燃料通道与加热炉6连通，外部还有空气通道经热源回热器8与加热炉6连通，加热炉6还有燃气通道经热源回热器8与外部连通；外部还有高品位燃料通道与第二加热炉7连通，外部还有空气通道经第二热源回热器9与第二加热炉7连通，第二加热炉7还有燃气通道经第二热源回热器9与外部连通；冷凝器4有冷凝液管路经升压泵3与加热炉6连通之后加热炉6再有蒸汽通道与第二加热炉7连通，压缩机2有蒸汽通道与第二加热炉7连通，第二加热炉7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供热器11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，供热器11还有被加热介质通道与外部连通，汽轮机1连接压缩机2并传输动力。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置相比较，不同之处在于：冷凝器4的冷凝液流经升压泵3升压，流经加热炉6吸热升温和汽化，之后进入第二加热炉7吸热升温，压缩机2排放的蒸汽进入第二加热炉7吸热升温；第二加热炉7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11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；低品位燃料通过加热炉6和高品位燃料通过第二加热炉7共同提供高温驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，被加热介质通过供热器11带走中温热负荷，形成双燃料联合循环蒸汽动力装置。
图5/12所示的双燃料联合循环蒸汽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、加热炉、第二加热 炉、热源回热器和第二热源回热器所组成；外部有低品位燃料通道与加热炉6连通，外部还有空气通道经热源回热器8与加热炉6连通，加热炉6还有燃气通道经热源回热器8与外部连通；外部还有高品位燃料通道与第二加热炉7连通，外部还有空气通道经第二热源回热器9与第二加热炉7连通，第二加热炉7还有燃气通道经第二热源回热器9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再有蒸汽通道与加热炉6连通，加热炉6还有蒸汽通道通过中间端口与汽轮机1连通，压缩机2有蒸汽通道经加热炉6与第二加热炉7连通，第二加热炉7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。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置相比较，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，流经加热炉6继续吸热，之后通过中间进汽端口进入汽轮机1降压作功；压缩机2排放的蒸汽流经加热炉6和第二加热炉7逐步吸热升温，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，形成双燃料联合循环蒸汽动力装置。
图6/12所示的双燃料联合循环蒸汽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、加热炉、第二加热炉、热源回热器、第二热源回热器和第二汽轮机所组成；外部有低品位燃料通道与加热炉6连通，外部还有空气通道经热源回热器8与加热炉6连通，加热炉6还有燃气通道经热源回热器8与外部连通；外部还有高品位燃料通道与第二加热炉7连通，外部还有空气通道经第二热源回热器9与第二加热炉7连通，第二加热炉7还有燃气通道经第二热源回热器9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再有蒸汽通道与第二汽轮机12连通，第二汽轮机12还有低压蒸汽通道与蒸发器5连通，压缩机2有蒸汽通道经加热炉6与第二加热炉7连通，第二加热炉7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，蒸发器5还有低压蒸汽通道分别与压缩机2和冷凝器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。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置相比较，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，流经第二汽轮机12降压作功，之后进入蒸发器5；压缩机2排放的蒸汽流经加热炉6和第二加热炉7逐步吸热升温；流经汽轮机1降压作功，之后进入蒸发器5；进入蒸发器5的低压蒸汽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；汽轮机1和第二汽轮机12输出的功提供给压缩机2和外部作动力，或汽轮机1和第二汽轮机12输出的功提供给压缩机2、升压泵3和外部作动力，形成双燃料联合循环蒸汽动力装置。
图7/12所示的双燃料联合循环蒸汽动力装置是这样实现的：
(1)结构上，在图1/12所示的双燃料联合循环蒸汽动力装置中，将第二加热炉7有蒸汽通道与汽轮机1连通调整为第二加热炉7有蒸汽通道与汽轮机1连通之后汽轮机1还有再热蒸汽通道经第二加热炉7与自身连通。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置相比较，不同之处在于：第二加热炉7产生的蒸汽进入汽轮机1降压作功至一定程度之后进入第二加热炉7吸热升温，然后进入汽轮机1继续降压作功，汽轮机1排放的低压蒸汽提供给蒸发器5，形成双燃料联合循环蒸汽动力装置。
图8/12示的双燃料联合循环蒸汽动力装置是这样实现的：
(1)结构上，在图1/12所示的双燃料联合循环蒸汽动力装置中，增加膨胀增速机13并取代汽轮机1，增加双能压缩机14并取代压缩机2，增加扩压管15并取代升压泵3。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置相比较，不同之处在于：冷凝器4的冷凝液流经扩压管15降速升压，流经蒸发器5吸热升温和汽化，流经加热炉6继续吸热，之后进入第二加热炉7吸热升温，双能压缩机14排放的蒸汽流经加热炉6和第二加热炉7逐步吸热升温；第二加热炉7排放的蒸汽流经膨胀增速机13降压作功并增速，膨胀增速机13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14升压升温并降速，第二路进入冷凝器4放热并冷凝，膨胀增速机13输出的功提供给双能压缩机14和外部作动力，形成双燃料联合循环蒸汽动力装置。
图9/12所示的双燃料联合循环蒸汽动力装置是这样实现的：
(1)结构上，在图1/12所示的双燃料联合循环蒸汽动力装置中，增加低温回热器和第二升压泵，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17与低温回热器16连通，压缩机2增设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1/12所示的双燃料联合循环蒸汽动力装置相比较，不同之处在于：冷凝器4排放的冷凝液流经第二升压泵17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吸热升温和汽化，流经加热炉6继续吸热，之后进入第二加热炉7吸热升温，压缩机2排放的蒸汽流经加热炉6和第二加热炉7逐步吸热升温；第二加热炉7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加热炉6，形成双燃料联合循环蒸汽动力装置。
图10/12所示的双燃料联合循环蒸汽动力装置是这样实现的：
(1)结构上，在图9/12所示的双燃料联合循环蒸汽动力装置中，增加膨胀增速机13并取代汽轮机1，增加双能压缩机14并取代压缩机2，增加扩压管15并取代升压泵3，增加第二扩压管18并取代第二升压泵17。
(2)流程上，与图9/12所示的双燃料联合循环蒸汽动力装置相比较，不同之处在于：冷凝器4排放的冷凝液流经第二扩压管18降速升压之后进入低温回热器16，与来自双能压缩机14的抽汽混合、吸热和升温，抽汽放热成冷凝液；低温回热器16的冷凝液流经扩压管15降速升压，流经蒸发器5吸热升温和汽化，流经加热炉6继续吸热，之后进入第二加热炉7吸热升温，双能压缩机14排放的蒸汽流经加热炉6和第二加热炉7逐步吸热升温；第二加热炉7排放的蒸汽流经膨胀增速机13降压作功并增速，膨胀增速机13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14升压升温并降速，第二路进入冷凝器4放热并冷凝；进入双能压缩机14的低压蒸汽升压升温并降速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加热炉6，形成双燃料联合循环蒸汽动力装置。
图11/12所示的双燃料联合循环蒸汽动力装置是这样实现的：
(1)结构上，在图1/12所示的双燃料联合循环蒸汽动力装置中，取消第二热源回热器，将外部有空气通道经热源回热器8与加热炉6连通和外部有空气通道经第二热源回热器9与第二加热炉7连通，调整为外部有空气通道与热源回热器8连通之后分成两路——第一路与加热炉6连通，第二路与第二加热炉7连通；将第二加热炉7有燃气通道经第二热源回热器9与外部连通调整为第二加热炉7有燃气通道经热源回热器8与外部连通。
(2)流程上，与图1/12所示的双燃料联合循环蒸汽动力装置不同之处在于：第二加热炉7排放的燃气流经热源回热器8放热降温之后对外排放，外部空气流经热源回热器8吸热升温之后分成两路——第一路进入加热炉6参与燃烧，第二路进入第二加热炉7参与燃烧，形成双燃料联合循环蒸汽动力装置。
图12/12所示的双燃料联合循环蒸汽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、加热炉、第二加热炉、热源回热器、第二热源回热器和第二汽轮机所组成；外部有低品位燃料通道与加热炉6连通，外部还有空气通道经热源回热器8与加热炉6连通，加热炉6还有燃气通道经热源回热器8与外部连通；外部还有高品位燃料通道与第二加热炉7连通，外部还有空气通道经第二热源回热器9与第二加热炉7连通，第二加热炉7还有燃气通道经第二热源回热器9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再有蒸汽通道经加热炉6与第二加热炉7连通，压缩机2有蒸汽通道经加热炉6与第二加热炉7连通，第二加热炉7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——第一路直接与压缩机2连通和第二路经第二汽轮机12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。
(2)流程上，外部低品位燃料进入加热炉6，外部第一路空气流经热源回热器8吸热升温之后进入加热炉6，低品位燃料和空气在加热炉6内混合并燃烧成温度较高的燃气，加热炉6内的燃气放热于流经其内的循环工质并降温，之后流经热源回热器8放热降温和对外排放；外部高品位燃料进入第二加热炉7，外部第二路空气流经第二热源回热器9吸热升温之后进入第二加热炉7，高品位燃料和空气在第二加热炉7内混合并燃烧成高温燃气，高温燃气放热于流经其内的循环工质并降温，之后流经第二热源回热器9放热降温和对外排放；冷凝器4的冷凝液流经升压泵3升压，流经蒸发器5吸热升温和汽化，流经加热炉6继续吸热，之后进入第二加热炉7吸热升温，压缩机2排放的蒸汽流经加热炉6和第二加热炉7逐步吸热升温；第二加热炉7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，第二路流经第二汽轮机12降压作功之后进入冷凝器4放热并冷凝；低品位燃料通过加热炉6和高品位燃料通过第二加热炉7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；汽轮机1和第二汽轮机12输出的功提供给压缩机2和外部作动力，或汽轮机1和第二汽轮机12 输出的功提供给压缩机2、升压泵3和外部作动力，形成双燃料联合循环蒸汽动力装置。
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蒸汽动力装置，具有如下效果和优势：
(1)合理搭配，分段构建，逐级升温，有效降低高温热源形成过程中的温差不可逆损失。
(2)低品位燃料结合高品位燃料为联合循环蒸汽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利用率。
(3)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。
(4)当低品位燃料分段使用时，显著提升高温燃气品位，提升低品位燃料利用价值。
(5)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。
(6)结构简单，流程合理；提升热动装置燃料选择范围和使用价值，降低能耗成本。
(7)提供多种技术方案，有利于降低热动装置的制造成本，有利于扩展技术应用范围。

Claims (14)

  1. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料通道与加热炉(6)连通，外部还有空气通道经热源回热器(8)与加热炉(6)连通，加热炉(6)还有燃气通道经热源回热器(8)与外部连通；外部还有高品位燃料通道与第二加热炉(7)连通，外部还有空气通道经第二热源回热器(9)与第二加热炉(7)连通，第二加热炉(7)还有燃气通道经第二热源回热器(9)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)再有蒸汽通道经加热炉(6)与第二加热炉(7)连通，压缩机(2)有蒸汽通道经加热炉(6)与第二加热炉(7)连通，第二加热炉(7)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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机(1)连接压缩机(2)和升压泵(3)并传输动力。
  2. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二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加热炉(6)连通，外部还有空气通道经热源回热器(8)与加热炉(6)连通，加热炉(6)还有燃气通道经热源回热器(8)与外部连通；外部还有高品位燃料通道与第二加热炉(7)连通，外部还有空气通道经第二热源回热器(9)与第二加热炉(7)连通，第二加热炉(7)还有燃气通道经第二热源回热器(9)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)再有蒸汽通道经高温回热器(10)和加热炉(6)与第二加热炉(7)连通，压缩机(2)有蒸汽通道经高温回热器(10)和加热炉(6)与第二加热炉(7)连通，第二加热炉(7)还有蒸汽通道与汽轮机(1)连通，汽轮机(1)还有低压蒸汽通道经高温回热器(10)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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机(1)连接压缩机(2)和升压泵(3)并传输动力。
  3. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二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加热炉(6)连通，外部还有空气通道经热源回热器(8)与加热炉(6)连通，加热炉(6)还有燃气通道经热源回热器(8)与外部连通；外部还有高品位燃料通道与第二加热炉(7)连通，外部还有空气通道经第二热源回热器(9)与第二加热炉(7)连通，第二加热炉(7)还有燃气通道经第二热源回热器(9)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)再有蒸汽通道经高温回热器(10)和加热炉(6)与第二加热炉(7)连通，压缩机(2)有蒸汽通道经高温回热器(10)和加热炉(6)与第二加热炉(7)连通，第二加热炉(7)还有蒸汽通道与汽轮机(1)连通之后汽轮机(1)再有蒸汽通道经高温回热器(10)与自身连通，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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机(1)连接压缩机(2)和升压泵 (3)并传输动力。
  4. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、加热炉、第二加热炉、热源回热器、第二热源回热器和供热器所组成；外部有低品位燃料通道与加热炉(6)连通，外部还有空气通道经热源回热器(8)与加热炉(6)连通，加热炉(6)还有燃气通道经热源回热器(8)与外部连通；外部还有高品位燃料通道与第二加热炉(7)连通，外部还有空气通道经第二热源回热器(9)与第二加热炉(7)连通，第二加热炉(7)还有燃气通道经第二热源回热器(9)与外部连通；冷凝器(4)有冷凝液管路经升压泵(3)与加热炉(6)连通之后加热炉(6)再有蒸汽通道与第二加热炉(7)连通，压缩机(2)有蒸汽通道与第二加热炉(7)连通，第二加热炉(7)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供热器(11)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，供热器(11)还有被加热介质通道与外部连通，汽轮机(1)连接压缩机(2)并传输动力，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机(1)连接压缩机(2)和升压泵(3)并传输动力。
  5. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料通道与加热炉(6)连通，外部还有空气通道经热源回热器(8)与加热炉(6)连通，加热炉(6)还有燃气通道经热源回热器(8)与外部连通；外部还有高品位燃料通道与第二加热炉(7)连通，外部还有空气通道经第二热源回热器(9)与第二加热炉(7)连通，第二加热炉(7)还有燃气通道经第二热源回热器(9)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)再有蒸汽通道与加热炉(6)连通，加热炉(6)还有蒸汽通道通过中间端口与汽轮机(1)连通，压缩机(2)有蒸汽通道经加热炉(6)与第二加热炉(7)连通，第二加热炉(7)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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机(1)连接压缩机(2)和升压泵(3)并传输动力。
  6. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二热源回热器和第二汽轮机所组成；外部有低品位燃料通道与加热炉(6)连通，外部还有空气通道经热源回热器(8)与加热炉(6)连通，加热炉(6)还有燃气通道经热源回热器(8)与外部连通；外部还有高品位燃料通道与第二加热炉(7)连通，外部还有空气通道经第二热源回热器(9)与第二加热炉(7)连通，第二加热炉(7)还有燃气通道经第二热源回热器(9)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)再有蒸汽通道与第二汽轮机(12)连通，第二汽轮机(12)还有低压蒸汽通道与蒸发器(5)连通，压缩机(2)有蒸汽通道经加热炉(6)与第二加热炉(7)连通，第二加热炉(7)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，蒸发器(5)还有低压蒸汽通道分别与压缩机(2)和冷凝器(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，形成双燃料联合循环蒸汽动力装置；其中，或汽轮机 (1)连接压缩机(2)和升压泵(3)并传输动力。
  7. 双燃料联合循环蒸汽动力装置，是在权利要求1-6所述的任一一款双燃料联合循环蒸汽动力装置中，将第二加热炉(7)有蒸汽通道与汽轮机(1)连通调整为第二加热炉(7)有蒸汽通道与汽轮机(1)连通之后汽轮机(1)还有再热蒸汽通道经加热炉(6)与自身连通，形成双燃料联合循环蒸汽动力装置。
  8. 双燃料联合循环蒸汽动力装置，是在权利要求1-6所述的任一一款双燃料联合循环蒸汽动力装置中，将第二加热炉(7)有蒸汽通道与汽轮机(1)连通调整为第二加热炉(7)有蒸汽通道与汽轮机(1)连通之后汽轮机(1)还有再热蒸汽通道经第二加热炉(7)与自身连通，形成双燃料联合循环蒸汽动力装置。
  9. 双燃料联合循环蒸汽动力装置，是在权利要求1-6所述的任一一款双燃料联合循环蒸汽动力装置中，将第二加热炉(7)有蒸汽通道与汽轮机(1)连通调整为第二加热炉(7)有蒸汽通道与汽轮机(1)连通之后汽轮机(1)还有再热蒸汽通道经加热炉(6)和第二加热炉(7)与自身连通，形成双燃料联合循环蒸汽动力装置。
  10. 双燃料联合循环蒸汽动力装置，是在权利要求1-9所述的任一一款双燃料联合循环蒸汽动力装置中，增加膨胀增速机(13)并取代汽轮机(1)，增加双能压缩机(14)并取代压缩机(2)，增加扩压管(15)并取代升压泵(3)，形成双燃料联合循环蒸汽动力装置。
  11. 双燃料联合循环蒸汽动力装置，是在权利要求1-9所述的任一一款双燃料联合循环蒸汽动力装置中，增加低温回热器和第二升压泵，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(17)与低温回热器(16)连通，压缩机(2)增设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，形成双燃料联合循环蒸汽动力装置。
  12. 双燃料联合循环蒸汽动力装置，是在权利要求11所述的任一一款双燃料联合循环蒸汽动力装置中，增加膨胀增速机(13)并取代汽轮机(1)，增加双能压缩机(14)并取代压缩机(2)，增加扩压管(15)并取代升压泵(3)，增加第二扩压管(18)并取代第二升压泵(17)，形成双燃料联合循环蒸汽动力装置。
  13. 双燃料联合循环蒸汽动力装置，是在权利要求1-12所述的任一一款双燃料联合循环蒸汽动力装置中，取消第二热源回热器，将外部有空气通道经热源回热器(8)与加热炉(6)连通和外部有空气通道经第二热源回热器(9)与第二加热炉(7)连通，调整为外部有空气通道与热源回热器(8)连通之后分成两路——第一路与加热炉(6)连通，第二路与第二加热炉(7)连通；将第二加热炉(7)有燃气通道经第二热源回热器(9)与外部连通调整为第二加热炉(7)有燃气通道经热源回热器(8)与外部连通，形成双燃料联合循环蒸汽动力装置。
  14. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、升压泵、冷凝器、蒸发器、加热炉、第二加热炉、热源回热器、第二热源回热器和第二汽轮机所组成；外部有低品位燃料通道与加热炉(6)连通，外部还有空气通道经热源回热器(8)与加热炉(6)连通，加热炉(6)还有燃气通道经热源回热器(8)与外部连通；外部还有高品位燃料通道与第二加热炉(7)连通，外部还有空气通道经第二热源回热器(9)与第二加热炉(7)连通，第二加热炉(7)还有燃气通道经第二热源回热器(9)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)再有蒸汽通道经加热炉(6)与第二加热炉(7)连通，压缩机(2)有蒸汽通道经加热炉(6)与第二加热炉(7)连通，第二加热炉(7)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——第一路直接与压缩机(2)连通和第二路经第二汽轮机(12)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，形成双燃料联合循环蒸汽动力装置。
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