WO2022141611A1 - 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
WO2022141611A1
WO2022141611A1 PCT/CN2021/000249 CN2021000249W WO2022141611A1 WO 2022141611 A1 WO2022141611 A1 WO 2022141611A1 CN 2021000249 W CN2021000249 W CN 2021000249W WO 2022141611 A1 WO2022141611 A1 WO 2022141611A1
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Prior art keywords
boiler
steam
steam turbine
heat source
compressor
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PCT/CN2021/000249
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English (en)
French (fr)
Inventor
李华玉
李鸿瑞
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李华玉
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Publication of WO2022141611A1 publication Critical patent/WO2022141611A1/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
    • F01K13/00—General layout or general methods of operation of complete plants
    • 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
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
    • 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
    • F01K21/00—Steam engine plants not otherwise provided for
    • 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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • 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
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure

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 second steam turbine, a booster pump, a condenser, an evaporator, a boiler, a second boiler, a heat source regenerator and a second heat source regenerator ;
  • a low-grade fuel channel on the outside that communicates with the boiler, and an air channel on the outside that communicates with the boiler through the heat source regenerator.
  • the boiler also has a gas channel that communicates with the outside through the heat source regenerator.
  • the condenser has a condensate pipeline that is boosted by pressure
  • the evaporator has a steam channel that communicates with the second boiler
  • the compressor has a steam channel that communicates with the second boiler
  • the second boiler 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.
  • the first path is directly connected to the compressor and the second path is connected to the condenser through the second steam turbine; the condenser and the cooling medium channel are connected to the outside, and the steam turbine is connected to the compressor and transmits power to form a dual-fuel combination A circulating steam power plant; in which the or steam turbine connects the compressor and booster pump and transmits power.
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, second steam turbine, booster pump, condenser, evaporator, boiler, second boiler, heat source regenerator, second heat source regenerator and high temperature It consists of a regenerator; an external low-grade fuel channel is connected to the boiler, an external air channel is connected to the boiler through the heat source regenerator, and the boiler and a gas channel are connected to the outside through the heat source regenerator; there is also a high-grade fuel externally.
  • the channel communicates with the second boiler, and there is an external air channel that communicates with the second boiler through the second heat source regenerator and the boiler, and the second boiler also has a gas channel that communicates with the outside through the second heat source regenerator; the condenser has condensate.
  • the evaporator After the pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the second boiler through the high temperature regenerator, and the compressor has a steam channel connected with the second boiler through the high temperature regenerator, and the second boiler 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 through the high temperature regenerator 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 is also There is a cooling medium channel that communicates 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, second steam turbine, booster pump, condenser, evaporator, boiler, second boiler, heat source regenerator, second heat source regenerator and high temperature It consists of a regenerator; an external low-grade fuel channel is connected to the boiler, an external air channel is connected to the boiler through the heat source regenerator, and the boiler and a gas channel are connected to the outside through the heat source regenerator; there is also a high-grade fuel externally.
  • the channel communicates with the second boiler, and there is an external air channel that communicates with the second boiler through the second heat source regenerator and the boiler, and the second boiler also has a gas channel that communicates with the outside through the second heat source regenerator; the condenser has condensate.
  • the evaporator After the pipeline is connected with the evaporator through the booster pump, the evaporator has a steam channel connected with the second boiler through the high temperature regenerator, and the compressor has a steam channel connected with the second boiler through the high temperature regenerator, and the second boiler also has steam.
  • the steam turbine After the passage is connected with the steam turbine, the steam turbine has a steam passage that communicates with itself through the high-temperature regenerator, and the steam turbine and the low-pressure steam passage are connected to 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 second path.
  • the steam turbine is communicated with 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 or steam turbine is connected to the compressor and the booster pump and transmits power.
  • the dual-fuel combined cycle steam power plant is mainly composed of a steam turbine, a compressor, a second steam turbine, a booster pump, a condenser, a boiler, a second boiler, a heat source regenerator, a second heat source regenerator and a heat supply unit.
  • It consists of a low-grade fuel channel on the outside that communicates with the boiler, an air channel on the outside that communicates with the boiler through a heat source regenerator, and a gas channel on the boiler that communicates with the outside through the heat source regenerator; and a high-grade fuel channel on the outside that communicates with the second
  • the boiler is connected to the outside, and there is an external air channel that is connected to the second boiler through the second heat source regenerator and the boiler, and the second boiler also has a gas channel that is connected to the outside through the second heat source regenerator;
  • the boiler has a steam channel that communicates with the second boiler
  • the compressor has a steam channel that communicates with the second boiler
  • the second boiler 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 heater.
  • the first path is directly connected to the compressor and the second path is connected to the condenser through the second steam turbine; the condenser and the cooling medium channel are connected to the outside, and the heater and the heated medium channel are connected to 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.
  • the dual-fuel combined cycle steam power plant is mainly composed of a steam turbine, a compressor, a second steam turbine, a booster pump, a condenser, an evaporator, a boiler, a second boiler, a heat source regenerator and a second heat source regenerator ;
  • a low-grade fuel channel on the outside that communicates with the boiler, and an air channel on the outside that communicates with the boiler through the heat source regenerator.
  • the boiler also has a gas channel that communicates with the outside through the heat source regenerator.
  • the condenser has a condensate pipeline that is boosted by pressure
  • the evaporator has a steam channel that communicates with the boiler
  • the boiler 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 boiler
  • the second boiler also has a steam channel that communicates with the steam turbine.
  • the steam turbine also has a low-pressure steam passage that communicates with the evaporator and then divides it into two routes—the first route is directly communicated with the compressor and the second route is communicated with the condenser through the second steam turbine; the condenser also has a cooling medium channel that communicates with the outside, and the steam turbine is connected
  • the compressor transmits power to form a dual-fuel combined cycle steam power plant; wherein, the or steam turbine connects the compressor and the booster pump and transmits the power.
  • the dual-fuel combined cycle steam power plant mainly consists of a steam turbine, a compressor, a second steam turbine, a booster pump, a condenser, an evaporator, a boiler, a second boiler, a heat source regenerator, a second heat source regenerator and a first It consists of three steam turbines; the external low-grade fuel channel is connected to the boiler, the external air channel is connected to the boiler through the heat source regenerator, and the boiler has a gas channel connected to the outside through the heat source regenerator; there is also a high-grade fuel channel externally.
  • the second boiler It is communicated with the second boiler, and there is an air channel outside through the second heat source regenerator and the boiler to communicate with the second boiler, and the second boiler also has a gas channel that communicates with the outside through the second heat source regenerator; the condenser
  • the evaporator has a steam channel that communicates with the third steam turbine
  • the third steam turbine also has a low-pressure steam channel that communicates with the evaporator
  • the compressor has a steam channel that communicates with the second boiler
  • the second boiler also There is a steam passage that communicates with the steam turbine
  • the steam turbine also has a low-pressure steam passage that communicates with the evaporator
  • the evaporator and a low-pressure steam passage are respectively directly communicated with the compressor and communicated with the condenser through the second steam turbine
  • the condenser also has a cooling medium passage with the outside.
  • the steam turbine is connected to the compressor and transmits power to form a dual-fuel combined cycle steam power plant
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, second steam turbine, booster pump, condenser, evaporator, boiler, second boiler, heat source regenerator and second heat source regenerator ;
  • the boiler also has a gas channel that communicates with the outside through the heat source regenerator.
  • the condenser has a condensate pipeline that is boosted by pressure
  • the evaporator has a steam channel that communicates with the second boiler through the boiler
  • the compressor has a steam channel that communicates with the second boiler through the boiler
  • the second boiler also has a steam channel that communicates with the steam turbine
  • the steam turbine also has a low-pressure steam channel.
  • the first path is directly connected to the compressor and the second path is connected to the condenser through the second steam turbine; the condenser also has a cooling medium channel to communicate with the outside, and the steam turbine is connected to the compressor and transmits power.
  • a dual-fuel combined cycle steam power plant is formed; in which the or steam turbine connects the compressor and booster pump and transmits power.
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, second steam turbine, booster pump, condenser, evaporator, boiler, second boiler, heat source regenerator, second heat source regenerator and high temperature It consists of a regenerator; an external low-grade fuel channel is connected to the boiler, an external air channel is connected to the boiler through the heat source regenerator, and the boiler and a gas channel are connected to the outside through the heat source regenerator; there is also a high-grade fuel externally.
  • the channel communicates with the second boiler, and there is an external air channel that communicates with the second boiler through the second heat source regenerator and the boiler, and the second boiler also has a gas channel that communicates with the outside through the second heat source regenerator; the condenser has condensate.
  • the evaporator has a steam channel that communicates with the second boiler through the high-temperature regenerator and the boiler
  • the compressor has a steam channel that communicates with the second boiler through the high-temperature regenerator and the boiler.
  • the boiler also has a steam channel that communicates with the steam turbine.
  • the steam turbine also has a low-pressure steam channel that is connected to the evaporator through a high-temperature regenerator and then divided into two paths—the first path is directly connected to the compressor, and the second path is connected to the condenser through the second steam turbine.
  • the condenser and the cooling medium channel are connected to 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, second steam turbine, booster pump, condenser, evaporator, boiler, second boiler, heat source regenerator, second heat source regenerator and high temperature It consists of a regenerator; an external low-grade fuel channel is connected to the boiler, an external air channel is connected to the boiler through the heat source regenerator, and the boiler and a gas channel are connected to the outside through the heat source regenerator; there is also a high-grade fuel externally.
  • the channel communicates with the second boiler, and there is an external air channel that communicates with the second boiler through the second heat source regenerator and the boiler, and the second boiler also has a gas channel that communicates with the outside through the second heat source regenerator; the condenser has condensate.
  • the evaporator has a steam channel that communicates with the second boiler through the high-temperature regenerator and the boiler, and the compressor has a steam channel that communicates with the second boiler through the high-temperature regenerator and the boiler.
  • the boiler 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 steam turbine also has a low-pressure steam channel that communicates with the evaporator and then divides into two paths—the first path is directly connected to the compressor and the second path is directly connected to the compressor. It communicates with the condenser through the second steam turbine; the condenser also has a cooling medium channel to communicate 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 Transmission power.
  • the dual-fuel combined cycle steam power plant mainly consists of a steam turbine, a compressor, a second steam turbine, a booster pump, a condenser, a boiler, a second boiler, a heat source regenerator, a second heat source regenerator and a heat supply unit.
  • It consists of a low-grade fuel channel on the outside that communicates with the boiler, an air channel on the outside that communicates with the boiler through a heat source regenerator, and a gas channel on the boiler that communicates with the outside through the heat source regenerator; and a high-grade fuel channel on the outside that communicates with the second
  • the boiler is connected to the outside, and there is an external air channel that is connected to the second boiler through the second heat source regenerator and the boiler, and the second boiler also has a gas channel that is connected to the outside through the second heat source regenerator;
  • the boiler has a steam channel that communicates with the second boiler
  • the compressor has a steam channel that communicates with the second boiler through the boiler
  • the second boiler also has a steam channel that communicates with the steam turbine
  • the steam turbine also has a low-pressure steam channel and heat supply.
  • the compressor After the compressor is connected, it is divided into two paths - the first path is directly connected to the compressor, and the second path is connected to the condenser through the second steam turbine; the condenser also has a cooling medium channel that communicates with the outside, and the heater also has a heated medium channel that communicates with the outside.
  • the steam turbine Externally connected, 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.
  • Dual-fuel combined cycle steam power plant mainly composed of steam turbine, compressor, second steam turbine, booster pump, condenser, evaporator, boiler, second boiler, heat source regenerator and second heat source regenerator ;
  • the boiler also has a gas channel that communicates with the outside through the heat source regenerator.
  • the second boiler Connected to the outside, there is also an air channel connected to the second boiler through the second heat source regenerator and the boiler, and the second boiler also has a gas channel connected to the outside through the second heat source regenerator;
  • the condenser has a condensate pipeline that is boosted by pressure
  • the evaporator has a steam channel that communicates with the boiler.
  • the boiler also has a steam channel that communicates with the steam turbine through the intermediate port.
  • the compressor has a steam channel that communicates with the second boiler through the boiler.
  • the second boiler also has a steam channel and the steam turbine.
  • the steam turbine and the low-pressure steam channel are connected to the evaporator and then divided into two paths - the first path is directly connected to the compressor and the second path is connected to the condenser through the second steam turbine; the condenser and the cooling medium channel are connected to 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, second steam turbine, booster pump, condenser, evaporator, boiler, second boiler, heat source regenerator, second heat source regenerator and first It consists of three steam turbines; the external low-grade fuel channel is connected to the boiler, the external air channel is connected to the boiler through the heat source regenerator, and the boiler has a gas channel connected to the outside through the heat source regenerator; there is also a high-grade fuel channel externally.
  • the second boiler It is communicated with the second boiler, and there is an air channel outside through the second heat source regenerator and the boiler to communicate with the second boiler, and the second boiler also has a gas channel that communicates with the outside through the second heat source regenerator; the condenser After the booster pump is communicated with the evaporator, the evaporator has a steam channel that communicates with the third steam turbine, the third steam turbine also has a low-pressure steam channel that communicates with the evaporator, and the compressor has a steam channel that communicates with the second boiler through the boiler.
  • the boiler 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 are respectively directly communicated with the compressor and communicated with the condenser through the second steam turbine; the condenser also has a cooling medium channel.
  • the steam turbine In communication 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.
  • a dual-fuel combined cycle steam power plant in any of the dual-fuel combined cycle steam power plants described in items 1 to 12, the second boiler has a steam passage and is adjusted to communicate with the steam turbine so that the second boiler has steam After the passage is communicated with the steam turbine, the steam turbine also has a reheat steam passage that communicates with itself through the boiler to form a dual-fuel combined cycle steam power plant.
  • a dual-fuel combined cycle steam power plant in any one of the dual-fuel combined cycle steam power plants described in items 1-12, the second boiler has a steam passage and is adjusted to communicate with the steam turbine so that the second boiler has steam After the passage is communicated with the steam turbine, the steam turbine also has a reheat steam passage that communicates with itself through the second boiler to form a dual-fuel combined cycle steam power plant.
  • a dual-fuel combined cycle steam power plant in any one of the dual-fuel combined cycle steam power plants described in items 1-12, the second boiler has a steam passage and is adjusted to communicate with the steam turbine so that the second boiler has steam After the passage is communicated with the steam turbine, the steam turbine also has a reheat steam passage that communicates with itself through the boiler and the second boiler 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 1-15, adding a regenerator and a second booster pump, and the condenser has a condensate.
  • the communication between the pipeline and the booster pump is adjusted so that the condenser has a condensate pipeline that is connected to the regenerator through the second booster pump, the compressor is provided with a steam extraction channel and is connected to the regenerator, and the regenerator has a condensate pipeline to communicate with the regenerator.
  • the booster pump is connected to form a dual-fuel combined cycle steam power plant.
  • Dual-fuel combined cycle steam power plant in any of the dual-fuel combined cycle steam power plants described in Items 1-15, an expansion speed-up machine is added to replace the steam turbine, and a dual-energy compressor is added to replace 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 any one of the dual-fuel combined cycle steam power plants described in item 16, 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.
  • Dual-fuel combined cycle steam power plant in any of the dual-fuel combined cycle steam power plants described in items 1-15, adding an expansion speed-up machine and replacing the second steam turbine, adding a diffuser tube and replacing it
  • the booster pump forms 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 second heat source regenerator communicates with the boiler and the external air channel communicates with the second boiler through the second heat source regenerator. After adjusting that the external air channel communicates with the heat source regenerator, it is divided into two paths—the first path is connected to the boiler, and the second path is connected to the boiler.
  • the second path is communicated with the second boiler through the boiler; the second boiler has a gas channel that communicates with the outside through the second heat source regenerator, and the second boiler has a gas channel that communicates with the outside through the heat source regenerator to form dual-fuel combined cycle steam powerplant.
  • the dual-fuel combined cycle steam power plant is mainly composed of a steam turbine, a compressor, a second steam turbine, a booster pump, a condenser, an evaporator, a boiler, a second boiler and a heat source regenerator; there is a low-grade fuel channel outside It is connected to the boiler, and there is an external air channel that is connected to the heat source regenerator and then divided into two paths—the first path is connected to the boiler, the second path is connected to the second boiler through the boiler, and the boiler also has an initial gas channel that communicates with the second boiler.
  • the second boiler There is also a high-grade fuel channel on the outside that communicates with the second boiler, and the second boiler also has a gas channel that communicates with the outside through the heat source regenerator; the condenser has a condensate pipeline that is connected to the evaporator through a booster pump.
  • the steam channel communicates with the second boiler
  • the compressor has a steam channel that communicates with the second boiler
  • the second boiler 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 into two paths—the first path directly It is communicated with the compressor and the second passage is communicated with the condenser through the second steam turbine;
  • 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, or the steam turbine is connected Compressor and booster pump and transmit power.
  • Figure 1/14 is a first principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 2/14 is a second principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 3/14 is the third principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 4/14 is the fourth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 5/14 is the fifth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 6/14 is the sixth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 7/14 is the seventh principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Figure 8/14 is the eighth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 9/14 is the ninth principle thermodynamic system diagram of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • 10/14 is a tenth principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 11/14 is an 11th principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • Fig. 12/14 is a twelfth principle thermodynamic system diagram of a dual-fuel combined cycle steam power plant provided according to the present invention.
  • 13/14 are diagrams of the thirteenth principle thermodynamic system of the dual-fuel combined cycle steam power plant provided according to the present invention.
  • 14/14 are diagrams of the fourteenth principle thermodynamic system of the 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 mechanical energy required by the engine 2 and the booster pump 4 can be provided by the steam turbine 1 or externally through mechanical transmission.
  • the steam at the outlet of the expansion and speed-up machine 16 also has a very low pressure, but maintains a relatively large flow rate (part of the pressure drop is converted into the kinetic energy of the low-pressure steam)
  • part of the kinetic energy is transmitted to the dual-energy compressor 17 through the circulating working medium itself for the requirement of pressure increase and temperature increase.
  • the heat source regenerator refers to the temperature grade of the gas in the boiler, which is listed separately.
  • relevant heat exchangers heat exchange tube bundles
  • relevant heat exchangers heat exchange tube bundles
  • economizer that heats up the condensate after being boosted by a booster pump, and an evaporator, and reheats the steam if necessary.
  • reheater etc.
  • the boiler 7 must undertake the task of heating the air entering the second boiler 8; in some cases, it also undertakes the task of heating and vaporizing the circulating condensate.
  • 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 highest temperature (such as adiabatic combustion temperature or constant pressure combustion temperature) that can be formed by combustion products of high-grade fuel after mixing part of low-grade fuel into fuel is higher than that of low-grade fuel; in contrast, the fuel is High-grade fuel - It should be noted that the high-temperature heat source formed by this fuel still needs to meet the needs of the thermodynamic cycle.
  • the gaseous substances in 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 low-grade fuel channel is communicated with the boiler 7, the external air channel is communicated with the boiler 7 through the heat source regenerator 9, and the boiler 7 also has a gas channel communicated with the outside through the heat source regenerator 9;
  • the second boiler 8 is connected, and there is an external air passage that is connected to the second boiler 8 through the second heat source regenerator 10 and the boiler 7, and the second boiler 8 also has a gas passage that communicates with the outside through the second heat source regenerator 10; the condenser 5.
  • the evaporator 6 After the condensate pipeline is communicated with the evaporator 6 through the booster pump 4, the evaporator 6 has a steam channel to communicate with the second boiler 8, the compressor 2 has a steam channel to communicate with the second boiler 8, and the second boiler 8 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 6 and then divided into two routes—the first route is directly communicated with the compressor 2 and the second route is communicated with the condenser 5 through the second steam turbine 3; condensation
  • the compressor 5 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 boiler 7, and the first external air flows through the heat source regenerator 9 to absorb heat and heat up and then enters the boiler 7, and the low-grade fuel and air are mixed in the boiler 7 and burned to a higher temperature
  • the gas in the boiler 7 releases heat to the air flowing through it and cools down, and then flows through the heat source regenerator 9 to release heat to cool down and discharge to the outside;
  • the high-grade fuel and air are mixed in the second boiler 8 and burned into high-temperature gas, and the high-temperature gas releases heat to flow through it.
  • the circulating working medium is cooled down, and then flows through the second heat source regenerator 10 to release heat and reduce the temperature and discharge to the outside; After overheating, it enters the second boiler 8 to absorb heat and heat up, and the steam discharged from the compressor 2 enters the second boiler 8 to absorb heat and heat up;
  • the heat is released and cooled by the evaporator 6, and then divided into two paths—the first path enters the compressor 2 to increase the pressure and heat up, and the second path flows through the second steam turbine 3 to depressurize and perform work and then enters the condenser 5 to release heat and condense;
  • the high-grade fuel provides the driving heat load through the boiler 7 and the high-grade fuel through the second boiler 8, and the cooling medium takes away the low-temperature heat load through the condenser 5;
  • the work output by the steam turbine 1 and the second steam turbine 3 is provided to the compressor 2 and the external operation.
  • the power, or the work output by the steam turbine 1 and the second steam turbine 3, is provided to the compressor 2, the booster
  • the dual-fuel combined cycle steam power plant shown in Fig. 2/14 is implemented as follows:
  • the condenser 5 has a condensate pipeline that is connected to the evaporator 6 through the booster pump 4, and then the evaporator 6 has a steam channel that communicates with the second boiler 8 through the high temperature regenerator 11, and the compressor 2 has a steam channel that is connected to the second boiler 8 through a high temperature regenerator.
  • the regenerator 11 is communicated with the second boiler 8, the second boiler 8 also has a steam passage that communicates with the steam turbine 1, and the steam turbine 1 and the low-pressure steam passage are connected to the evaporator 6 through the high temperature regenerator 11 and then divided into two paths—the first The road is directly connected to the compressor 2 and the second road is connected to the condenser 5 through the second steam turbine 3; the condenser 5 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 boiler 7, and the first external air flows through the heat source regenerator 9 to absorb heat and heat up and then enters the boiler 7, and the low-grade fuel and air are mixed in the boiler 7 and burned to a higher temperature
  • the gas in the boiler 7 releases heat to the air flowing through it and cools down, and then flows through the heat source regenerator 9 to release heat to cool down and discharge to the outside;
  • the high-grade fuel and air are mixed in the second boiler 8 and burned into high-temperature gas, and the high-temperature gas releases heat to flow through it.
  • the circulating working medium is cooled down, and then flows through the second heat source regenerator 10 to release heat and reduce the temperature and discharge to the outside; Overheating, flows through the high temperature regenerator 11 to absorb heat and heat up, and then enters the second boiler 8 to absorb heat to heat up; the steam discharged from the compressor 2 flows through the high temperature regenerator 11 to absorb heat to heat up, and then enters the second boiler 8 to absorb heat to heat up; The steam discharged from the second boiler 8 flows through the steam turbine 1 to reduce pressure to perform work, and the low-pressure steam discharged from the steam turbine 1 flows through the high temperature regenerator 11 and the evaporator 6 to gradually release heat and cool down, and then divide into two paths—the first path enters the compression The machine 2 is boosted and heated up, and the second path flows through the second steam turbine 3 after depressurization and work, and then enters the condenser 5 to release heat and condense; the low-grade fuel passes through the boiler 7 and the high-grade fuel passes through the second boiler 8 to jointly provide the driving heat load
  • the condenser 5 has a condensate pipeline that is connected to the evaporator 6 through the booster pump 4, and then the evaporator 6 has a steam channel that communicates with the second boiler 8 through the high temperature regenerator 11, and the compressor 2 has a steam channel that is connected to the second boiler 8 through a high temperature regenerator.
  • the regenerator 11 is communicated with the second boiler 8, and the second boiler 8 also has a steam passage that communicates with the steam turbine 1. After that, the steam turbine 1 has a steam passage that communicates with itself through the high-temperature regenerator 11.
  • the steam turbine 1 also has a low-pressure steam passage and an evaporator.
  • the first path is directly connected with the compressor 2 and the second path is connected with the condenser 5 through the second steam turbine 3; the condenser 5 also has a cooling medium channel to communicate with the outside, and the steam turbine 1 is connected to the compressor 2 and transmit power.
  • the external low-grade fuel enters the boiler 7, and the first external air flows through the heat source regenerator 9 to absorb heat and heat up and then enters the boiler 7, and the low-grade fuel and air are mixed in the boiler 7 and burned to a higher temperature
  • the gas in the boiler 7 releases heat to the air flowing through it and cools down, and then flows through the heat source regenerator 9 to release heat to cool down and discharge to the outside;
  • the high-grade fuel and air are mixed in the second boiler 8 and burned into high-temperature gas, and the high-temperature gas releases heat to flow through it.
  • the circulating working medium is cooled down, and then flows through the second heat source regenerator 10 to release heat and reduce the temperature and discharge to the outside; Overheating, flows through the high temperature regenerator 11 to absorb heat and heat up, and then enters the second boiler 8 to absorb heat to heat up; the steam discharged from the compressor 2 flows through the high temperature regenerator 11 to absorb heat to heat up, and then enters the second boiler 8 to absorb heat to heat up; The steam discharged from the second boiler 8 enters the steam turbine 1 to depressurize the work to a certain extent, and then flows through the high temperature regenerator 11 to release heat and cool down, and then enters the steam turbine 1 to continue depressurization and work; the low-pressure steam discharged from the steam turbine 1 flows through the evaporator 6 to discharge Heat and cool down, and then divided into two paths - the first path enters the compressor 2 to increase the pressure and heat up, and the second path flows through the second steam turbine 3 to depressurize and work, and then enters the condenser 5 to release heat and cond
  • the second boiler 8 is connected to the outside, and there is an external air channel that communicates with the second boiler 8 through the second heat source regenerator 10 and the boiler 7, and the second boiler 8 also has a gas channel that communicates with the outside through the second heat source regenerator 10; condensation;
  • the compressor 5 has a condensate pipeline connected to the boiler 7 through the booster pump 4, and then the boiler 7 has a steam channel to communicate with the second boiler 8.
  • the compressor 2 has a steam channel to communicate with the second boiler 8, and the second boiler 8 also has steam.
  • the passage is communicated with the steam turbine 1, and the steam turbine 1 and the low-pressure steam passage are communicated with the heater 12 and then divided into two routes—the first route is directly communicated with the compressor 2 and the second route is communicated with the condenser 5 through the second steam turbine 3; condensation
  • the heater 5 also has a cooling medium channel to communicate with the outside, the heater 12 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 external low-grade fuel enters the boiler 7, and the first external air flows through the heat source regenerator 9 to absorb heat and heat up and then enters the boiler 7, and the low-grade fuel and air are mixed in the boiler 7 and burned to a higher temperature
  • the gas in the boiler 7 releases heat to the air flowing through it and cools down, and then flows through the heat source regenerator 9 to release heat to cool down and discharge to the outside;
  • the high-grade fuel and air are mixed in the second boiler 8 and burned into high-temperature gas, and the high-temperature gas releases heat to flow through it.
  • the circulating working medium is cooled down, and then flows through the second heat source regenerator 10 to release heat and cool down and discharge to the outside;
  • the second boiler 8 continues to absorb heat, and the steam discharged from the compressor 2 enters the second boiler 8 to absorb heat; the steam discharged from the second boiler 8 flows through the steam turbine 1 to reduce pressure to perform work, and the low-pressure steam discharged from the steam turbine 1 flows through the heater 12
  • the heat is released and cooled, and then divided into two paths - the first path enters the compressor 2 to increase the pressure and heat up, and the second path flows through the second steam turbine 3 to depressurize and work, and then enters the condenser 5 to release heat and condense; the low-grade fuel passes through the boiler.
  • the low-grade fuel channel is communicated with the boiler 7, the external air channel is communicated with the boiler 7 through the heat source regenerator 9, and the boiler 7 also has a gas channel communicated with the outside through the heat source regenerator 9;
  • the second boiler 8 is connected, and there is an external air passage that is connected to the second boiler 8 through the second heat source regenerator 10 and the boiler 7, and the second boiler 8 also has a gas passage that communicates with the outside through the second heat source regenerator 10; the condenser 5.
  • the evaporator 6 After the condensate pipeline is communicated with the evaporator 6 through the booster pump 4, the evaporator 6 has a steam channel that communicates with the boiler 7.
  • the boiler 7 also has a steam channel that communicates with the steam turbine 1 through an intermediate port.
  • the compressor 2 has a steam channel and
  • the second boiler 8 is connected, the second boiler 8 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 6 and then is divided into two paths—the first path is directly connected to the compressor 2 and the second path It communicates with the condenser 5 through the second steam turbine 3; the condenser 5 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 boiler 7, and the first external air flows through the heat source regenerator 9 to absorb heat and heat up and then enters the boiler 7, and the low-grade fuel and air are mixed in the boiler 7 and burned to a higher temperature
  • the gas in the boiler 7 releases heat to the air flowing through it and cools down, and then flows through the heat source regenerator 9 to release heat to cool down and discharge to the outside;
  • the high-grade fuel and air are mixed in the second boiler 8 and burned into high-temperature gas, and the high-temperature gas releases heat to flow through it.
  • the circulating working medium is cooled down, and then flows through the second heat source regenerator 10 to release heat and reduce the temperature and discharge to the outside; Overheating, flows through the boiler 7 to absorb heat and heat up, and then enters the steam turbine 1 through the intermediate steam inlet port to reduce the pressure; Pressure work; the low-pressure steam discharged from the steam turbine 1 flows through the evaporator 6 to release heat and cool down, and then it is divided into two paths - the first path enters the compressor 2 to increase the pressure and heat up, and the second path flows through the second steam turbine 3 to depressurize and perform work.
  • the condenser 5 enters the condenser 5 to release heat and condense; the low-grade fuel passes through the boiler 7 and the high-grade fuel passes through the second boiler 8 to jointly provide the driving heat load, and the cooling medium takes away the low-temperature heat load through the condenser 5; the steam turbine 1 and the second steam turbine 3
  • the output work is provided to the compressor 2 and the external power, or the work output by the steam turbine 1 and the second steam turbine 3 is provided to the compressor 2, the booster pump 4 and the external power to form a dual-fuel combined cycle steam power plant.
  • the condenser 5 has a condensate pipeline that is connected to the evaporator 6 through the booster pump 4, and then the evaporator 6 has a steam channel to communicate with the third steam turbine 13, and the third steam turbine 13 also has a low-pressure steam channel to communicate with the evaporator 6.
  • the compressor 2 has a steam channel that communicates with the second boiler 8
  • the second boiler 8 also has a steam channel that communicates with the steam turbine 1
  • the steam turbine 1 also has a low-pressure steam channel that communicates with the evaporator 6, and the evaporator 6 also has a low-pressure steam channel. It communicates with the compressor 2 and communicates with the condenser 5 through the second steam turbine 3
  • the condenser 5 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 boiler 7, and the first external air flows through the heat source regenerator 9 to absorb heat and heat up and then enters the boiler 7, and the low-grade fuel and air are mixed in the boiler 7 and burned to a higher temperature
  • the gas in the boiler 7 releases heat to the air flowing through it and cools down, and then flows through the heat source regenerator 9 to release heat to cool down and discharge to the outside;
  • the high-grade fuel and air are mixed in the second boiler 8 and burned into high-temperature gas, and the high-temperature gas releases heat to flow through it.
  • the circulating working medium is cooled down, and then flows through the second heat source regenerator 10 to release heat and reduce the temperature and discharge to the outside;
  • Superheated flows through the third steam turbine 13 to depressurize and perform work, and the low-pressure steam discharged from the third steam turbine 13 enters the evaporator 6;
  • the steam discharged from the compressor 2 enters the second boiler 8 to absorb heat and heat up, and the steam discharged from the second boiler 8 flows through
  • the steam turbine 1 is depressurized to perform work, and the low-pressure steam discharged from the steam turbine 1 enters the evaporator 6;
  • the two-path low-pressure steam entering the evaporator 6 is divided into two paths after releasing heat and cooling down.
  • the second steam turbine 3 After flowing through the second steam turbine 3, it enters the condenser 5 to release heat and condense; the low-grade fuel passes through the boiler 7 and the high-grade fuel passes through the second boiler 8 to jointly provide the driving heat load, and the cooling medium passes through the condenser 5 to take away the low temperature Heat load; the work output by the steam turbine 1, the second steam turbine 3 and the third steam turbine 13 is provided to the compressor 2 and the external power, or the work output by the steam turbine 1, the second steam turbine 3 and the third steam turbine 13 is provided to the compressor 2,
  • the booster pump 4 and the outside act as power to form a dual-fuel combined cycle steam power plant.
  • the low-grade fuel channel is communicated with the boiler 7, the external air channel is communicated with the boiler 7 through the heat source regenerator 9, and the boiler 7 also has a gas channel communicated with the outside through the heat source regenerator 9;
  • the second boiler 8 is connected, and there is an external air passage that is connected to the second boiler 8 through the second heat source regenerator 10 and the boiler 7, and the second boiler 8 also has a gas passage that communicates with the outside through the second heat source regenerator 10; the condenser 5.
  • the evaporator 6 After the condensate pipeline is communicated with the evaporator 6 through the booster pump 4, the evaporator 6 has a steam channel communicated with the second boiler 8 through the boiler 7, and the compressor 2 has a steam channel communicated with the second boiler 8 through the boiler 7.
  • the second boiler 8 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 6 and then is divided into two paths—the first path is directly connected to the compressor 2 and the second path is directly connected to the compressor 2 via the second steam turbine 3.
  • the condenser 5 is communicated; the condenser 5 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 boiler 7, and the first external air flows through the heat source regenerator 9 to absorb heat and heat up and then enters the boiler 7, and the low-grade fuel and air are mixed in the boiler 7 and burned to a higher temperature
  • the gas in the boiler 7 releases heat to the air flowing through it and cools down, and then flows through the heat source regenerator 9 to release heat to cool down and discharge to the outside;
  • the high-grade fuel and air are mixed in the second boiler 8 and burned into high-temperature gas, and the high-temperature gas releases heat to flow through it.
  • the circulating working medium is cooled, and then flows through the second heat source regenerator 10 to release heat and reduce the temperature and discharge to the outside; All vaporized, flow through the boiler 7 to continue to absorb heat, and then enter the second boiler 8 to absorb heat and heat up; the steam discharged from the compressor 2 flows through the boiler 7 to absorb heat and heat up, and then enters the second boiler 8 to absorb heat and heat up; the second boiler 8 discharges
  • the steam 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 6 to release heat and cool down, and then divide into two paths - the first path enters the compressor 2 for boosting and heating, and the second path flows through the second path.
  • the steam turbine 3 After the steam turbine 3 is depressurized, it enters the condenser 5 to release heat and condense; the low-grade fuel passes through the boiler 7 and the high-grade fuel passes through the second boiler 8 to jointly provide the driving heat load, and the cooling medium passes through the condenser 5 to take away the low-temperature heat load; the steam turbine The work output by 1 and the second steam turbine 3 is provided to the compressor 2 and the external power, or the work output by the steam turbine 1 and the second steam turbine 3 is provided to the compressor 2, the booster pump 4 and the external power to form a dual-fuel combined cycle. steam power plant.
  • the second boiler 8 has a steam passage connected with the steam turbine 1 and is adjusted so that the second boiler 8 has a steam passage and is connected with the steam turbine 1 after the steam turbine 1 also has a reheat steam passage communicating with itself via the second boiler 8.
  • the low-pressure steam entering the compressor 2 is boosted and heated to a certain level, and then divided into two paths—the first path is supplied to the regenerator 14, and the second path continues to be boosted and heated, and then enters the second boiler 8 to form a dual-fuel combined cycle steam power plant.
  • the two-way flow passes through the second steam turbine 3 and then enters the condenser 5 to release heat and condense; the low-grade fuel passes through the boiler 7 and the high-grade fuel passes through the second boiler 8 to jointly provide the driving heat load, and the cooling medium passes through the condenser 5.
  • the work output by the second steam turbine 3 and the expansion speed increaser 16 is provided to the dual-energy compressor 17 and external power to form a dual-fuel combined cycle steam power plant.
  • the dual-fuel combined cycle steam power plant shown in Figure 11 is implemented as follows:
  • the low-pressure steam discharged from the expansion and speed-up engine 16 flows through the evaporator 6 to release heat and cool down, and then is divided into two paths - the first path enters the dual-energy compressor 17 to increase the pressure and heat up and reduce the speed.
  • the second path flows through the second steam turbine 3 to depressurize and work, and then enters the condenser 5 to release heat and condense; the low-pressure steam entering the dual-energy compressor 17 is boosted and heated up and decelerated to a certain extent, and then divided into two paths—the first The second path is provided to the regenerator 14, and the second path continues to increase the pressure and temperature, and then enters the second boiler 8 to form a dual-fuel combined cycle steam power plant.
  • the dual-fuel combined cycle steam power plant shown in Figure 12/14 is implemented as follows:
  • the condenser 5 releases heat and condenses; the low-grade fuel passes through the boiler 7 and the high-grade fuel passes through the second boiler 8 to jointly provide the driving heat load, the cooling medium takes away the low-temperature heat load through the condenser 5, and the steam turbine 1 and the expansion speed increaser 16 output
  • the difference from the dual-fuel combined cycle steam power plant shown in Figure 1/14 is that the gas discharged from the second boiler 8 flows through the heat source regenerator 9 to release heat and cool down and then discharge to the outside, and the external air flows After the heat source regenerator 9 absorbs heat and warms up, it is divided into two paths - the first path enters the boiler 7 to participate in combustion, and the second path flows through the boiler 7 to absorb heat and heat up and enter the second boiler 8 to participate in combustion, forming a dual-fuel combined cycle steam power device.
  • the dual-fuel combined cycle steam power plant shown in Figure 14/14 is implemented as follows:
  • the second boiler 8 is connected to the outside, and there is a high-grade fuel channel outside that is connected to the second boiler 8.
  • the second boiler 8 also has a gas channel that is connected to the outside through the heat source regenerator 9; the condenser 5 has a condensate pipeline through a booster pump 4 After being communicated with the evaporator 6, the evaporator 6 has a steam channel to communicate with the second boiler 8, the compressor 2 has a steam channel to communicate with the second boiler 8, the second boiler 8 also has a steam channel to communicate with the steam turbine 1, and the steam turbine 1 also has a steam channel.
  • the low-pressure steam passage is divided into two routes—the first route is directly communicated with the compressor 2 and the second route is communicated with the condenser 5 through the second steam turbine 3; the condenser 5 also has a cooling medium channel communicated with the outside,
  • the steam turbine 1 is connected to the compressor 2 and transmits power.
  • the external air flows through the heat source regenerator 9 and then divides into two paths after absorbing heat and heating up—the first path directly enters the boiler 7 to participate in the combustion process, and the second path flows through the boiler 7 and continues to absorb heat and heat up and then enters the second path.
  • Boiler 8 the external low-grade fuel enters the boiler 7, the low-grade fuel and air are mixed in the boiler 7 and burned into a higher temperature primary gas, and the primary gas releases heat into the second boiler 8 after the air flowing through it; the external The high-grade fuel enters the second boiler 8, and the high-grade fuel is mixed with the primary gas and air from the boiler 7 and burned into high-temperature gas.
  • the condenser 9 releases heat to cool down and discharge to the outside; the condensate of the condenser 5 flows through the booster pump 4 to boost pressure, flows through the evaporator 6 to absorb heat to heat up, vaporize and overheat, and then enters the second boiler 8 to absorb heat and heat up, and the compressor 2
  • the discharged steam enters the second boiler 8 to absorb heat and heat up; the steam discharged from the second boiler 8 flows through the steam turbine 1 to reduce pressure to perform work, and the low-pressure steam discharged from the steam turbine 1 flows through the evaporator 6 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 flows through the second steam turbine 3 to depressurize and work, and then enters the condenser 5 to release heat and condense; the low-grade fuel passes through the boiler 7 and the high-grade fuel passes through the second boiler 8.

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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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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、锅炉和第二锅炉与汽轮机连通，压缩机有蒸汽通道经锅炉和第二锅炉与汽轮机连通，汽轮机还有低压蒸汽通道经蒸发器之后分别直接与压缩机连通和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。

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材料性质或设备制造水平等原因，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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉连通，压缩机有蒸汽通道与第二锅炉连通，第二锅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；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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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与第二锅炉连通，压缩机有蒸汽通道经高温回热器与第二锅炉连通，第二锅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；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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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与第二锅炉连通，压缩机有蒸汽通道经高温回热器与第二锅炉连通，第二锅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；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、第二汽轮机、升压泵、冷凝器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉连通之后锅炉再有蒸汽通道与第二锅炉连通，压缩机有蒸汽通道与第二锅炉连通，第二锅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，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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉连通，锅炉还有蒸汽通道通过中间端口与汽轮机连通，压缩机有蒸汽通道与第二锅炉连通，第二锅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；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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、热源回热器、第二热源回热器和第三汽轮机所组成；外部有低品位燃料通道与锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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三汽轮机连通，第三汽轮机还有低压蒸汽通道与蒸发器连通，压缩机有蒸汽通道与第二锅炉连通，第二锅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直接与压缩机连通和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；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，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉与第二锅炉连通，压缩机有蒸汽通道经锅炉与第二锅炉连通，第二锅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；其中，或汽轮机连接压缩机和升压泵并传输动力。
8.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉与第二锅炉连通，压缩机有蒸汽通道经高温回热器和锅炉与第二锅炉连通，第二锅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；其中，或汽轮机连接压缩机和升压泵并传输动力。
9.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉与第二锅炉连通，压缩机有蒸汽通道经高温回热器和锅炉与第二锅炉连通，第二锅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；其中，或汽轮机连接压缩机和升压泵并传输动力。
10.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉连通之后锅炉再有蒸汽通道与第二锅炉连通，压缩机有蒸汽通道经锅炉与第二锅炉连通，第二锅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，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。
11.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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锅炉连通，锅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锅炉与第二锅炉连通，第二锅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；其中，或汽轮机连接压缩机和升压泵并传输动力。
12.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、热源回热器、第二热源回热器和第三汽轮机所组成；外部有低品位燃料通道与锅炉连通，外部还有空气通道经热源回热器与锅炉连通，锅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锅炉连通，外部还有空气通道经第二热源回热器和锅炉与第二锅炉连通，第二锅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三汽轮机连通，第三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锅炉与第二锅炉连通，第二锅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直接与压缩机连通和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；其中，或汽轮机连接压缩机和升压泵并传输动力。
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，将第二锅炉有蒸汽通道与汽轮机连通调整为第二锅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锅炉与自身连通，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，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，将第二锅炉有蒸汽通道与汽轮机连通调整为第二锅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锅炉与自身连通，形成双燃料联合循环蒸汽动力装置。
15.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，将第二锅炉有蒸汽通道与汽轮机连通调整为第二锅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锅炉和第二锅炉与自身连通，形成双燃料联合循环蒸汽动力装置。
16.双燃料联合循环蒸汽动力装置，是在第1-15项所述的任一一款双燃料联合循环蒸汽动力装置中，增加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回热器连通，压缩机设置抽汽通道与回热器连通，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。
17.双燃料联合循环蒸汽动力装置，是在第1-15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。
18.双燃料联合循环蒸汽动力装置，是在第16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。
19.双燃料联合循环蒸汽动力装置，是在第1-15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第二汽轮机，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。
20.双燃料联合循环蒸汽动力装置，是在第1-19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锅炉连通和外部有空气通道经第二热源回热器和锅炉与第二锅炉连通，调整为外部有空气通道与热源回热器连通之后分成两路——第一路与锅炉连通，第二路经锅炉与第二锅炉连通；将第二锅炉有燃气通道经第二热源回热器与外部连通调整为第二锅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。
21.双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、 冷凝器、蒸发器、锅炉、第二锅炉和热源回热器所组成；外部有低品位燃料通道与锅炉连通，外部还有空气通道与热源回热器连通之后分成两路——第一路与锅炉连通和第二路经锅炉与第二锅炉连通，锅炉还有初段燃气通道与第二锅炉连通，外部还有高品位燃料通道与第二锅炉连通，第二锅炉还有燃气通道经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锅炉连通，压缩机有蒸汽通道与第二锅炉连通，第二锅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；其中，或汽轮机连接压缩机和升压泵并传输动力。
附图说明：
图1/14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2/14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3/14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4/14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5/14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6/14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7/14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8/14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9/14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10/14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11/14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12/14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13/14是依据本发明所提供的双燃料联合循环蒸汽动力装置第13种原则性热力系统图。
图14/14是依据本发明所提供的双燃料联合循环蒸汽动力装置第14种原则性热力系统图。
图中，1-汽轮机，2-压缩机，3-第二汽轮机，4-升压泵，5-冷凝器，6-蒸发器，7-锅炉，8-第二锅炉，9-热源回热器，10-第二热源回热器，11-高温回热器，12-供热器，13-第三汽轮机，14-回热器，15-第二升压泵，16-膨胀增速机，17-双能压缩机，18-扩压管，19-第二扩压管。
(1)为揭示汽轮机1和膨胀增速机16在工作流程上的区别，这里作如下说明：
①图1/14所示的双燃料联合循环蒸汽动力装置中，蒸汽流经汽轮机1实现热变功，汽轮机1出口蒸汽具有很低的压力和较小的流速(对应较小的动能)，压缩机2、升压泵4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10/14所示的蒸汽动力装置中，膨胀增速机16出口蒸汽同样具有很低的压力，但保持相对较大的流速(部分压降转换为低压蒸汽的动能)以满足扩压管18降速升压的需要，同时通过循环工质自身向双能压缩机17传输部分动能用于升压升温需求。
③对图1/14中高压高温蒸汽流经汽轮机1实现热变功的过程采用“降压作功”，对图10/14中高压高温蒸汽流经膨胀增速机16实现热变功的过程采用“降压作功并增速”表示。
(2)关于两个锅炉的说明：
①热源回热器涉及锅炉内燃气的温度品位，单独列出。
②根据需要，锅炉内部设置相关热交换器(换热管束)，诸如必要情况下对经过升压泵升压之后的冷凝液加热升温的省煤器，还有蒸发器，以及对蒸汽进行再热的再热器等。
③不具体指明循环介质流经锅炉受热汽化或再热升温时所涉及到的具体换热管束(省煤器、蒸发器或再热器)，而统一采用锅炉来表述。
④本发明申请中，锅炉7必须承担对进入第二锅炉8的空气的加热任务；一些情况下，还承担对循环冷凝液的加热汽化任务。
(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。
高品位燃料中掺入部分低品位燃料之后形成的燃料，其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)比低品位燃料的高；相比之下，该燃料是高品位燃料一—应当注意的是，该燃料形成的高温热源仍然要满足热力循环的需求。
③对于同种燃料而言，采用本发明申请权利要求所表述的技术，由锅炉7承担空气的加热任务，将提升该燃料形成的燃烧产物(高温热源)的温度——这对低品位燃料来说，在第二锅炉8中投入的同种燃料，将变身为(如同)高品位燃料。
④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。
⑤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1/14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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉7连通，外部还有空气通道经热源回热器9与锅炉7连通，锅炉7还有燃气通道经热源回热器9与外部连通；外部还有高品位燃料通道与第二锅炉8连通，外部还有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，第二锅炉8还有燃气通道经第二热源回热器10与外部连通；冷凝器5有冷凝液管路经升压泵4与蒸发器6连通之后蒸发器6再有蒸汽通道与第二锅炉8连通，压缩机2有蒸汽通道与第二锅炉8连通，第二锅炉8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6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3与冷凝器5连通；冷凝器5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锅炉7，外部第一路空气流经热源回热器9吸热升温之后进入锅炉7，低品位燃料和空气在锅炉7内混合并燃烧成温度较高的燃气，锅炉7内的燃气放热于流经其内的空气并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二锅炉8，外部第二路空气流经第二热源回热器10和锅炉7逐步吸热升温之后进入第二锅炉8，高品位燃料和空气在第二锅炉8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10放热降温和对外排放；冷凝器5的冷凝液流经升压泵4升压，流经蒸发器6吸热升温、汽化和过热，之后进入第二锅炉8吸热升温，压缩机2排放的蒸汽进入第二锅炉8吸热升温；第二锅炉8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6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3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷；汽轮机1和第二汽轮机3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3输出的功提供给压缩机2、升压泵4和外部作动力，形成双燃料联合循环蒸汽动力装置。
图2/14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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉7连通，外部还有空气通道经热源回热器9与锅炉7连通，锅炉7还有燃气通道经热源回热器9与外部连通；外部还有高品位燃料通道与第二锅炉8连通，外部还有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，第二锅炉8还有燃气通道经第二热源回热器10与外部连通；冷凝器5有冷凝液管路经升压泵4与蒸发器6连通之后蒸发器6再有蒸汽通道经高温回热器11与第二锅炉8连通，压缩机2有蒸汽通道经高温回热器11与第二锅炉8连通，第二锅炉8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11与蒸发器6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3与冷凝器5连通；冷凝器5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锅炉7，外部第一路空气流经热源回热器9吸热升温之后进入锅炉7，低品位燃料和空气在锅炉7内混合并燃烧成温度较高的燃气，锅炉7内的燃气放热于流经其内的空气并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二锅炉8，外部第二路空气流经第二热源回热器10和锅炉7逐步吸热升温之后进入第二锅炉8，高品位燃料和空气在第二锅炉8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10放热降温和对外排放；冷凝器5的冷凝液流经升压泵4升压，流经蒸发器6吸热升温、汽化和过热，流经高温回热器11吸热升温，之后进入第二锅炉8吸热升温；压缩机2排放的蒸汽流经高温回热器11吸热升温，之后进入第二锅炉8吸热升温；第二锅炉8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11和蒸发器6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，第二路流经第二汽轮机3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷；汽轮机1和第二汽轮机3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3输出的功提供给压缩机2、升压泵4和外部作动力，形成双燃料联合循环蒸汽动力装置。
图3/14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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉7连通，外部还有空气通道经热源回热器9与锅炉7连通，锅炉7还有燃气通道经热源回热器9与外部连通；外部还有高品位燃料通道与第二锅炉8连通，外部还有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，第二锅炉8还有燃气通道经第二热源回热器10与外部连通；冷凝器5有冷凝液管路经升压泵4与蒸发器6连通之后蒸发器6再有蒸汽通道经高温回热器11与第二锅炉8连通，压缩机2有蒸汽通道经高温回热器11与第二锅炉8连通，第二锅炉8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11与自身连通，汽轮机1还有低压蒸汽通道与蒸发器6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3与冷凝器5连通；冷凝器5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锅炉7，外部第一路空气流经热源回热器9吸热升温之后进入锅炉7，低品位燃料和空气在锅炉7内混合并燃烧成温度较高的燃气，锅炉7内的燃气放热于流经其内的空气并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二锅炉8，外部第二路空气流经第二热源回热器10和锅炉7逐步吸热升温之后进入第二锅炉8，高品位燃料和空气在第二锅炉8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10放热降温和对外排放；冷凝器5的冷凝液流经升压泵4升压，流经蒸发器6吸热升温、汽化和过热，流经高温回热器11吸热升温，之后进入第二锅炉8吸热升温；压缩机2排放的蒸汽流经高温回热器11吸热升温，之后进入第二锅炉8吸热升温；第二锅炉8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11放热降温，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6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3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷；汽轮机1和第二汽轮机3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3输出的功提供给压缩机2、升压泵4和外部作动力，形成双燃料联合循环蒸汽动力装置。
图4/14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、第二汽轮机、升压泵、冷凝器、锅炉、第二锅炉、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锅炉7连通，外部还有空气通道经热源回热器9与锅炉7连通，锅炉7还有燃气通道经热源回热器9与外部连通；外部还有高品位燃料通道与第二锅炉8连通，外部还有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，第二锅炉8还有燃气通道经第二热源回热器10与外部连通；冷凝器5有冷凝液管路经升压泵4与锅炉7连通之后锅炉7再有蒸汽通道与第二锅炉8连通，压缩机2有蒸汽通道与第二锅炉8连通，第二锅炉8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12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3与冷凝器5连通；冷凝器5还有冷却介质通道与外部连通，供热器12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，外部低品位燃料进入锅炉7，外部第一路空气流经热源回热器9吸热升温之后进入锅炉7，低品位燃料和空气在锅炉7内混合并燃烧成温度较高的燃气，锅炉7内的燃气放热于流经其内的空气并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二锅炉8，外部第二路空气流经第二热源回热器10和锅炉7逐步吸热升温之后进入第二锅炉8，高品位燃料和空气在第二锅炉8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10放热降温和对外排放；冷凝器5的冷凝液经升压泵4升压，流经锅炉7吸热升温和汽化，之后进入第二锅炉8继续吸热，压缩机2排放的蒸汽进入第二锅炉8吸热；第二锅炉8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12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3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷，被加热介质通过供热器12带走中温热负荷；汽轮机1和第二汽轮机3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3输出的功提供给压缩机2、升压泵4和外部作动力，形成双燃料联合循环蒸汽动力装置。
图5/14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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉7连通，外部还有空气通道经热源回热器9与锅炉7连通，锅炉7还有燃气通道经热源回热器9与外部连通；外部还有高品位燃料通道与第二锅炉8连通，外部还有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，第二锅炉8还有燃气通道经第二热源回热器10与外部连通；冷凝器5有冷凝液管路经升压泵4与蒸发器6连通之后蒸发器6再有蒸汽通道与 锅炉7连通，锅炉7还有蒸汽通道通过中间端口与汽轮机1连通，压缩机2有蒸汽通道与第二锅炉8连通，第二锅炉8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6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3与冷凝器5连通；冷凝器5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锅炉7，外部第一路空气流经热源回热器9吸热升温之后进入锅炉7，低品位燃料和空气在锅炉7内混合并燃烧成温度较高的燃气，锅炉7内的燃气放热于流经其内的空气并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二锅炉8，外部第二路空气流经第二热源回热器10和锅炉7逐步吸热升温之后进入第二锅炉8，高品位燃料和空气在第二锅炉8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10放热降温和对外排放；冷凝器5的冷凝液流经升压泵4升压，流经蒸发器6吸热升温、汽化和过热，流经锅炉7吸热升温，之后通过中间进汽端口进入汽轮机1降压作功；压缩机2排放的蒸汽进入第二锅炉8吸热升温，第二锅炉8排放的蒸汽进入汽轮机1降压作功；汽轮机1排放的低压蒸汽流经蒸发器6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3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷；汽轮机1和第二汽轮机3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3输出的功提供给压缩机2、升压泵4和外部作动力，形成双燃料联合循环蒸汽动力装置。
图6/14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，它由主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、热源回热器、第二热源回热器和第三汽轮机所组成；外部有低品位燃料通道与锅炉7连通，外部还有空气通道经热源回热器9与锅炉7连通，锅炉7还有燃气通道经热源回热器9与外部连通；外部还有高品位燃料通道与第二锅炉8连通，外部还有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，第二锅炉8还有燃气通道经第二热源回热器10与外部连通；冷凝器5有冷凝液管路经升压泵4与蒸发器6连通之后蒸发器6再有蒸汽通道与第三汽轮机13连通，第三汽轮机13还有低压蒸汽通道与蒸发器6连通，压缩机2有蒸汽通道与第二锅炉8连通，第二锅炉8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6连通，蒸发器6还有低压蒸汽通道分别直接与压缩机2连通和经第二汽轮机3与冷凝器5连通；冷凝器5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锅炉7，外部第一路空气流经热源回热器9吸热升温之后进入锅炉7，低品位燃料和空气在锅炉7内混合并燃烧成温度较高的燃气，锅炉7内的燃气放热于流经其内的空气并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二锅炉8，外部第二路空气流经第二热源回热器10和锅炉7逐步吸热升温之后进入第二锅炉8，高品位燃料和空气在第二锅炉8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10放热降温和对外排放；冷凝 器5的冷凝液流经升压泵4升压，流经蒸发器6吸热升温、汽化和过热，流经第三汽轮机13降压作功，第三汽轮机13排放的低压蒸汽进入蒸发器6；压缩机2排放的蒸汽进入第二锅炉8吸热升温，第二锅炉8排放的蒸汽流经汽轮机1降压作功，汽轮机1排放的低压蒸汽进入蒸发器6；进入蒸发器6的两路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，第二路流经第二汽轮机3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷；汽轮机1、第二汽轮机3和第三汽轮机13输出的功提供给压缩机2和外部作动力，或汽轮机1、第二汽轮机3和第三汽轮机13输出的功提供给压缩机2、升压泵4和外部作动力，形成双燃料联合循环蒸汽动力装置。
图7/14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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉7连通，外部还有空气通道经热源回热器9与锅炉7连通，锅炉7还有燃气通道经热源回热器9与外部连通；外部还有高品位燃料通道与第二锅炉8连通，外部还有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，第二锅炉8还有燃气通道经第二热源回热器10与外部连通；冷凝器5有冷凝液管路经升压泵4与蒸发器6连通之后蒸发器6再有蒸汽通道经锅炉7与第二锅炉8连通，压缩机2有蒸汽通道经锅炉7与第二锅炉8连通，第二锅炉8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6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3与冷凝器5连通；冷凝器5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锅炉7，外部第一路空气流经热源回热器9吸热升温之后进入锅炉7，低品位燃料和空气在锅炉7内混合并燃烧成温度较高的燃气，锅炉7内的燃气放热于流经其内的空气并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二锅炉8，外部第二路空气流经第二热源回热器10和锅炉7逐步吸热升温之后进入第二锅炉8，高品位燃料和空气在第二锅炉8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10放热降温和对外排放；冷凝器5的冷凝液流经升压泵4升压，流经蒸发器6吸热升温和部分或全部汽化，流经锅炉7继续吸热，之后进入第二锅炉8吸热升温；压缩机2排放的蒸汽流经锅炉7吸热升温，之后进入第二锅炉8吸热升温；第二锅炉8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6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3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷；汽轮机1和第二汽轮机3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3输出的功提供给压缩机2、升压泵4和外部作动力，形成双燃料联合循环蒸汽动力装置。
图8/14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1/14所示的双燃料联合循环蒸汽动力装置中，将第二锅炉8有蒸汽通道与汽轮机1连通调整为第二锅炉8有蒸汽通道与汽轮机1连通之后汽轮机1还有再热蒸 汽通道经第二锅炉8与自身连通。
(2)流程上，与图1/14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：第二锅炉8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锅炉8吸热升温，再之后进入汽轮机1继续降压作功，而后提供给蒸发器6，形成双燃料联合循环蒸汽动力装置。
图9/14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1/14所示的双燃料联合循环蒸汽动力装置中，增加回热器和第二升压泵，将冷凝器5有冷凝液管路与升压泵4连通调整为冷凝器5有冷凝液管路经第二升压泵15与回热器14连通，压缩机2设置抽汽通道与回热器14连通，回热器14再有冷凝液管路与升压泵4连通。
(2)流程上，与图1/14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5排放的冷凝液流经第二升压泵15升压之后进入回热器14，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；回热器14的冷凝液流经升压泵4升压，流经蒸发器6吸热升温、汽化和过热，之后进入第二锅炉8吸热升温，压缩机2排放的蒸汽进入第二锅炉8吸热升温；第二锅炉8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6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3降压作功之后进入冷凝器5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——第一路提供给回热器14，第二路继续升压升温之后进入第二锅炉8，形成双燃料联合循环蒸汽动力装置。
图10/14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所示的双燃料联合循环蒸汽动力装置中，增加膨胀增速机16并取代汽轮机1，增加双能压缩机17并取代压缩机2，增加扩压管18并取代升压泵4。
(2)流程上，与图1/14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5的冷凝液流经扩压管18降速升压，流经蒸发器6吸热升温、汽化和过热，之后进入第二锅炉8吸热升温，双能压缩机17排放的蒸汽进入第二锅炉8吸热升温；第二锅炉8排放的蒸汽流经膨胀增速机16降压作功并增速，膨胀增速机16排放的低压蒸汽流经蒸发器6放热并降温，之后分成两路——第一路进入双能压缩机17升压升温并降速，第二路流经第二汽轮机3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷，第二汽轮机3和膨胀增速机16输出的功提供给双能压缩机17和外部作动力，形成双燃料联合循环蒸汽动力装置。
图11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9/14所示的双燃料联合循环蒸汽动力装置中，增加膨胀增速机16并取代汽轮机1，增加双能压缩机17并取代压缩机2，增加扩压管18并取代升压泵4，增加第二扩压管19并取代第二升压泵15。
(2)流程上，与图9/14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5排放的冷凝液流经第二扩压管19降速升压之后进入回热器14，与来自双能压缩机17的抽汽混合、吸热和升温，抽汽放热成冷凝液；回热器14的冷凝液流经扩压管18降速 升压，流经蒸发器6吸热升温、汽化和过热，之后进入第二锅炉8吸热升温，双能压缩机17排放的蒸汽进入第二锅炉8吸热升温；第二锅炉8排放的蒸汽流经膨胀增速机16降压作功并增速，膨胀增速机16排放的低压蒸汽流经蒸发器6放热并降温，之后分成两路——第一路进入双能压缩机17升压升温并降速，第二路流经第二汽轮机3降压作功之后进入冷凝器5放热并冷凝；进入双能压缩机17的低压蒸汽升压升温并降速至一定程度之后分成两路——第一路提供给回热器14，第二路继续升压升温之后进入第二锅炉8，形成双燃料联合循环蒸汽动力装置。
图12/14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1/14所示的双燃料联合循环蒸汽动力装置中，增加膨胀增速机16并取代第二汽轮机3，增加扩压管18并取代升压泵4。
(2)流程上，与图1/14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5的冷凝液流经扩压管18降速升压，流经蒸发器6吸热升温和汽化，之后进入第二锅炉8吸热升温，压缩机2排放的蒸汽进入第二锅炉8吸热升温；第二锅炉8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6放热并降温，之后分成两路——第一路进入压缩机2升压升温，第二路流经膨胀增速机16降压作功并增速之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷，汽轮机1和膨胀增速机16输出的功提供给压缩机2和外部作动力，形成双燃料联合循环蒸汽动力装置。
图13/14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1/14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9与锅炉7连通和外部有空气通道经第二热源回热器10和锅炉7与第二锅炉8连通，调整为外部有空气通道与热源回热器9连通之后分成两路——第一路与锅炉7连通，第二路经锅炉7与第二锅炉8连通；将第二锅炉8有燃气通道经第二热源回热器10与外部连通调整为第二锅炉8有燃气通道经热源回热器9与外部连通。
(2)流程上，与图1/14所示的双燃料联合循环蒸汽动力装置不同之处在于：第二锅炉8排放的燃气流经热源回热器9放热降温之后对外排放，外部空气流经热源回热器9吸热升温之后分成两路——第一路进入锅炉7参与燃烧，第二路流经锅炉7吸热升温之后进入第二锅炉8参与燃烧，形成双燃料联合循环蒸汽动力装置。
图14/14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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉和热源回热器所组成；外部有低品位燃料通道与锅炉7连通，外部还有空气通道与热源回热器9连通之后分成两路——第一路与锅炉7连通和第二路经锅炉7与第二锅炉8连通，锅炉7还有初段燃气通道与第二锅炉8连通，外部还有高品位燃料通道与第二锅炉8连通，第二锅炉8还有燃气通道经热源回热器9与外部连通；冷凝器5有冷凝液管路经升压泵4与蒸发器6连通之后蒸发器6再有蒸汽通道与第二锅炉8连通，压缩机2有蒸汽通道与第二锅炉8连通，第二锅炉8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6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3 与冷凝器5连通；冷凝器5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，外部空气流经热源回热器9吸热升温之后分成两路——第一路直接进入锅炉7参与燃烧过程，第二路流经锅炉7继续吸热升温之后进入第二锅炉8；外部低品位燃料进入锅炉7，低品位燃料和空气在锅炉7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其内的空气之后进入第二锅炉8；外部高品位燃料进入第二锅炉8，高品位燃料与来自锅炉7的初段燃气和空气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，之后流经热源回热器9放热降温和对外排放；冷凝器5的冷凝液流经升压泵4升压，流经蒸发器6吸热升温、汽化和过热，之后进入第二锅炉8吸热升温，压缩机2排放的蒸汽进入第二锅炉8吸热升温；第二锅炉8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6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3降压作功之后进入冷凝器5放热并冷凝；低品位燃料通过锅炉7和高品位燃料通过第二锅炉8共同提供驱动热负荷，冷却介质通过冷凝器5带走低温热负荷；汽轮机1和第二汽轮机3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3输出的功提供给压缩机2、升压泵4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动力装置提供高温热负荷，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)减少高品位燃料燃烧过程温差不可逆损失，提升高品位燃料热变功效率。
(4)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；提升燃料选择范围和使用价值，降低装置能耗成本。
(7)提供多种技术方案，有利于降低装置的制造成本，有利于扩展技术应用范围。

Claims (21)

  1. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道与第二锅炉(8)连通，压缩机(2)有蒸汽通道与第二锅炉(8)连通，第二锅炉(8)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(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道经高温回热器(11)与第二锅炉(8)连通，压缩机(2)有蒸汽通道经高温回热器(11)与第二锅炉(8)连通，第二锅炉(8)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(11)与蒸发器(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道经高温回热器(11)与第二锅炉(8)连通，压缩机(2)有蒸汽通道经高温回热器(11)与第二锅炉(8)连通，第二锅炉(8)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(11)与自身连通，汽轮机(1)还有低压蒸汽通道与蒸发器(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)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、第二汽轮机、升压泵、冷凝器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与锅炉(7)连通之后锅炉(7)再有蒸汽通道与第二锅炉(8)连通，压缩机(2)有蒸汽通道与第二锅炉(8)连通，第二锅炉(8)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(12)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(3)与冷凝器(5)连通；冷凝器(5)还有冷却介质通道与外部连通，供热器(12)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(4)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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道与锅炉(7)连通，锅炉(7)还有蒸汽通道通过中间端口与汽轮机(1)连通，压缩机(2)有蒸汽通道与第二锅炉(8)连通，第二锅炉(8)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(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)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、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、热源回热器、第二热源回热器和第三汽轮机所组成；外部有低品位燃料通道与锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道与第三汽轮机(13)连通，第三汽轮机(13)还有低压蒸汽通道与蒸发器(6)连通，压缩机(2)有蒸汽通道与第二锅炉(8)连通，第二锅炉(8)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(6)连通，蒸发器(6)还有低压蒸汽通道分别直接与压缩机(2)连通和经第二汽轮机(3)与冷凝器(5)连通；冷凝器(5)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(4)并传输动力。
  7. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道经锅炉(7)与第二锅炉(8)连通，压缩机(2)有蒸汽通道经锅炉(7)与第二锅炉(8)连通，第二锅炉(8)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(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)并传输动力。
  8. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道经高温回热器(11)和锅炉(7)与第二锅炉(8)连通，压缩机(2)有蒸汽通道经高温回热器(11)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)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(11)与蒸发器(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)并传输动力。
  9. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道经高温回热器(11)和锅炉(7)与第二锅炉(8)连通，压缩机(2)有蒸汽通道经高温回热器(11)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)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(11)与自身连通，汽轮机(1)还有低压蒸汽通道与蒸发器(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)并传输动力。
  10. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与锅炉(7)连通之后锅炉(7)再有蒸汽通道与第二锅炉(8)连通，压缩机(2)有蒸汽通道经锅炉(7)与第二锅炉(8)连通，第二锅炉(8)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(12)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(3)与冷凝器(5)连通；冷凝器(5)还有冷却介质通道与外部连通，供热器(12)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(4)并传输动力。
  11. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、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锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道与锅炉(7)连通，锅炉(7)还有蒸汽通道通过中间端口与汽轮机(1)连通，压缩机(2)有蒸汽通道经锅炉(7)与第二锅炉(8)连通，第二锅炉(8)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(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)并传输动力。
  12. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉、热源回热器、第二热源回热器和第三汽轮机所组成；外部有低品位燃料通道与锅炉(7)连通，外部还有空气通道经热源回热器(9)与锅炉(7)连通，锅炉(7)还有燃气通道经热源回热器(9)与外部连通；外部还有高品位燃料通道与第二锅炉(8)连通，外部还有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经第二热源回热器(10)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道与第三汽轮机(13)连通，第三汽轮机(13)还有低压蒸汽通道与蒸发器(6)连通，压缩机(2)有蒸汽通道经锅炉(7)与第二锅炉(8)连通，第二锅炉(8)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(6)连通，蒸发器(6)还有低压蒸汽通道分别直接与压缩机(2)连通和经第二汽轮机(3)与冷凝器(5)连通；冷凝器(5)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(4)并传输动力。
  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，将第二锅炉(8)有蒸汽通道与汽轮机(1)连通调整为第二锅炉(8)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锅炉(7)与自身连通，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，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，将第二锅炉(8)有蒸汽通道与汽轮机(1)连通调整为第二锅炉(8)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锅炉(8)与自身连通，形成双燃料联合循环蒸汽动力装置。
  15. 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，将第二锅炉(8)有蒸汽通道与汽轮机(1)连通调整为第二锅炉(8)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锅炉(7)和第二锅炉(8)与自身连通，形成双燃料联合循环蒸汽动力装置。
  16. 双燃料联合循环蒸汽动力装置，是在权利要求1-15所述的任一一款双燃料联合循环蒸汽动力装置中，增加回热器和第二升压泵，将冷凝器(5)有冷凝液管路与升压泵(4)连通调整为冷凝器(5)有冷凝液管路经第二升压泵(15)与回热器(14)连通，压缩机(2)设置抽汽通道与回热器(14)连通，回热器(14)再有冷凝液管路与升压泵(4)连通，形成双燃料联合循环蒸汽动力装置。
  17. 双燃料联合循环蒸汽动力装置，是在权利要求1-15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(16)并取代汽轮机(1)，增加双能压缩机(17)并取代压缩机(2)，增加扩压管(18)并取代升压泵(4)，形成双燃料联合循环蒸汽动力装置。
  18. 双燃料联合循环蒸汽动力装置，是在权利要求16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(16)并取代汽轮机(1)，增加双能压缩机(17)并取代压缩机(2)，增加扩压管(18)并取代升压泵(4)，增加第二扩压管(19)并取代第二升压泵(15)，形成双燃料联合循环蒸汽动力装置。
  19. 双燃料联合循环蒸汽动力装置，是在权利要求1-15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(16)并取代第二汽轮机(3)，增加扩压管(18)并取代升压泵(4)，形成双燃料联合循环蒸汽动力装置。
  20. 双燃料联合循环蒸汽动力装置，是在权利要求1-19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(9)与锅炉(7)连通和外部有空气通道经第二热源回热器(10)和锅炉(7)与第二锅炉(8)连通，调整为外部有空气通道与热源回热器(9)连通之后分成两路——第一路与锅炉(7)连通，第二路经锅炉(7)与第二锅炉(8)连通；将第二锅炉(8)有燃气通道经第二热源回热器(10)与外部连通调整为第二锅炉(8)有燃气通道经热源回热器(9)与外部连通，形成双燃料联合循环蒸汽动力装置。
  21. 双燃料联合循环蒸汽动力装置，主要由汽轮机、压缩机、第二汽轮机、升压泵、冷凝器、蒸发器、锅炉、第二锅炉和热源回热器所组成；外部有低品位燃料通道与锅炉(7) 连通，外部还有空气通道与热源回热器(9)连通之后分成两路——第一路与锅炉(7)连通和第二路经锅炉(7)与第二锅炉(8)连通，锅炉(7)还有初段燃气通道与第二锅炉(8)连通，外部还有高品位燃料通道与第二锅炉(8)连通，第二锅炉(8)还有燃气通道经热源回热器(9)与外部连通；冷凝器(5)有冷凝液管路经升压泵(4)与蒸发器(6)连通之后蒸发器(6)再有蒸汽通道与第二锅炉(8)连通，压缩机(2)有蒸汽通道与第二锅炉(8)连通，第二锅炉(8)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(6)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(3)与冷凝器(5)连通；冷凝器(5)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(4)并传输动力。
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