WO2022161113A1 - 双燃料联合循环动力装置 - Google Patents

双燃料联合循环动力装置 Download PDF

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Publication number
WO2022161113A1
WO2022161113A1 PCT/CN2022/000015 CN2022000015W WO2022161113A1 WO 2022161113 A1 WO2022161113 A1 WO 2022161113A1 CN 2022000015 W CN2022000015 W CN 2022000015W WO 2022161113 A1 WO2022161113 A1 WO 2022161113A1
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Prior art keywords
heating furnace
heat source
regenerator
outside
channel
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PCT/CN2022/000015
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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 WO2022161113A1 publication Critical patent/WO2022161113A1/zh

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

Definitions

  • the invention belongs to the technical field of thermodynamics and thermodynamics.
  • Cold demand, heat demand and power demand are common in human life and production; among them, the chemical energy of high-quality fuel is converted into thermal energy through combustion, and then the thermal energy is efficiently converted into mechanical energy through a gas-steam power plant.
  • the temperature of the gas formed by the combustion of the fuel directly determines the thermal power conversion efficiency; from the temperature of the gas formed by combustion (such as the combustion temperature at constant pressure)
  • High-grade fuels correspond to high-grade heat sources, which can convert more mechanical energy; while low-grade fuels with low constant-pressure combustion temperatures are difficult to form high-temperature combustion products, corresponding to low-grade heat sources—relative to the former, less mechanical energy can be converted.
  • the main purpose of the present invention is to provide a dual-fuel combined cycle power plant, and the specific content of the invention is described as follows:
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator and second heat source regenerator It consists of low-grade fuel on the outside that communicates with the heating furnace, an air channel on the outside that communicates with the heating furnace through a heat source regenerator, a heating furnace and a gas channel that communicates with the outside through the heat source regenerator, and a high-grade fuel channel on the outside.
  • the second heating furnace It is connected with the second heating furnace, and there is an external air passage that is connected to the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel that communicates with the outside through the second heat source regenerator;
  • the mass channel is communicated with the expander through the heating furnace and the second heating furnace, and the expander and the circulating working medium channel are communicated with the compressor through the high temperature heat exchanger;
  • the condenser has a condensate pipeline communicated with the high temperature heat exchanger through a booster pump Afterwards, the high-temperature heat exchanger has a steam passage that communicates with the steam turbine, and the steam turbine also has a low-pressure steam passage that communicates with the condenser;
  • the condenser and a cooling medium passage communicate with the outside, and the expander is connected to the compressor and transmits power to form dual-fuel combined cycle power. device.
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator, and second heat source regenerator It is composed of a high-temperature regenerator; the external low-grade fuel is connected to the heating furnace, the external air channel is connected to the heating furnace through the heat source regenerator, and the heating furnace and the gas channel are connected to the outside through the heat source regenerator.
  • a high-grade fuel channel communicates with the second heating furnace, an external air channel communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the compressor has a circulating working fluid channel which is connected with the expander through a high temperature regenerator, a heating furnace and a second heating furnace, and the expander also has a circulating working fluid channel which is communicated with the compressor through a high temperature regenerator and a warm heat exchanger;
  • the condenser After the condensate pipeline is connected with the high-temperature heat exchanger through the booster pump, the high-temperature heat exchanger has a steam channel connected with the steam turbine, the steam turbine also has a low-pressure steam channel connected with the condenser; the condenser also has a cooling medium channel connected with the outside,
  • the expander is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator, and second heat source regenerator It is composed of a high-temperature regenerator; the external low-grade fuel is connected to the heating furnace, the external air channel is connected to the heating furnace through the heat source regenerator, and the heating furnace and the gas channel are connected to the outside through the heat source regenerator.
  • a high-grade fuel channel communicates with the second heating furnace, an external air channel communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the compressor has a circulating working medium channel which is connected with the expander through a heating furnace, a high temperature regenerator and a second heating furnace, and the expander also has a circulating working medium channel which is communicated with the compressor through a high temperature regenerator and a warm heat exchanger;
  • the condenser After the condensate pipeline is connected with the high-temperature heat exchanger through the booster pump, the high-temperature heat exchanger has a steam channel connected with the steam turbine, the steam turbine also has a low-pressure steam channel connected with the condenser; the condenser also has a cooling medium channel connected with the outside,
  • the expander is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator, and second heat source regenerator It is composed of a high-temperature regenerator; the external low-grade fuel is connected to the heating furnace, the external air channel is connected to the heating furnace through the heat source regenerator, and the heating furnace and the gas channel are connected to the outside through the heat source regenerator.
  • a high-grade fuel channel communicates with the second heating furnace, an external air channel communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the compressor has a circulating working medium channel that communicates with the expander through a high temperature regenerator, a heating furnace and a second heating furnace, and then the expander has a circulating working medium channel that communicates with itself through the high temperature regenerator, and the expander also has a circulating working medium channel.
  • the high-temperature heat exchanger is connected to the compressor; the condenser has a condensate pipeline that is connected to the high-temperature heat exchanger through a booster pump, and then the high-temperature heat exchanger has a steam channel that communicates with the steam turbine, and the steam turbine also has a low-pressure steam channel that communicates with the condenser.
  • the condenser and the cooling medium channel are communicated with the outside, and the expander is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator, and second heat source regenerator It is composed of a high-temperature regenerator; the external low-grade fuel is connected to the heating furnace, the external air channel is connected to the heating furnace through the heat source regenerator, and the heating furnace and the gas channel are connected to the outside through the heat source regenerator.
  • a high-grade fuel channel communicates with the second heating furnace, an external air channel communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the compressor has a circulating working medium channel that communicates with the expander through the heating furnace, the high temperature regenerator and the second heating furnace.
  • the expander has a circulating working medium channel that communicates with itself through the high temperature regenerator, and the expander also has a circulating working medium channel.
  • the high-temperature heat exchanger is connected to the compressor; the condenser has a condensate pipeline that is connected to the high-temperature heat exchanger through a booster pump, and then the high-temperature heat exchanger has a steam channel that communicates with the steam turbine, and the steam turbine also has a low-pressure steam channel that communicates with the condenser.
  • the condenser and the cooling medium channel are communicated with the outside, and the expander is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator, and second heat source regenerator It is composed of a high temperature regenerator; the external low-grade fuel is connected to the heating furnace, the external air channel is connected to the heating furnace through the heat source regenerator, and the heating furnace and the gas channel are connected to the outside through the heat source regenerator.
  • a high-grade fuel channel communicates with the second heating furnace, an external air channel communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the compressor has a circulating working medium channel that communicates with the expander through the heating furnace and the second heating furnace.
  • the expander also has a circulating working medium channel that communicates with the compressor through a high-temperature regenerator and a high-temperature heat exchanger.
  • the passage communicates with itself through the high temperature regenerator; the condenser has a condensate pipeline that is connected to the high temperature heat exchanger through a booster pump, and then the high temperature heat exchanger has a steam passage that communicates with the steam turbine, and the steam turbine also has a low pressure steam passage that communicates with the condenser.
  • the condenser and the cooling medium channel are communicated with the outside, and the expander is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator, and second heat source regenerator It is composed of a high-temperature regenerator; the external low-grade fuel is connected to the heating furnace, the external air channel is connected to the heating furnace through the heat source regenerator, and the heating furnace and the gas channel are connected to the outside through the heat source regenerator.
  • a high-grade fuel channel communicates with the second heating furnace, an external air channel communicates with the second heating furnace through the second heat source regenerator, and the second heating furnace also has a gas channel communicated with the outside through the second heat source regenerator;
  • the compressor has a circulating working medium channel, which is connected to the expander through the heating furnace and the second heating furnace. After that, the expander has a circulating working medium channel that communicates with itself through a high-temperature regenerator.
  • the expander also has a circulating working medium channel that communicates with itself through a high-temperature heat exchanger.
  • the compressor After connecting with the compressor, the compressor has a circulating working medium channel that communicates with itself through the high-temperature regenerator; the condenser has a condensate pipeline that is connected to the high-temperature heat exchanger through a booster pump, and then the high-temperature heat exchanger has a steam channel and a steam turbine.
  • the steam turbine also has a low-pressure steam channel that communicates with the condenser; the condenser also has a cooling medium channel that communicates with the outside, and the expander is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle power plant is any one of the dual-fuel combined cycle power plants described in items 1 to 7, and the high heat exchanger has a steam passage and the steam turbine is adjusted to communicate with the steam turbine so that the high heat exchanger has a steam passage through the The heating furnace is communicated with the steam turbine to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle power plant is any one of the dual-fuel combined cycle power plants described in items 1 to 7.
  • the high heat exchanger has a steam passage and the steam turbine is adjusted to communicate with the steam turbine.
  • the high heat exchanger has a steam passage and After the steam turbine is connected, the steam turbine has a steam channel to communicate with itself through the heating furnace to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle power plant is any one of the dual-fuel combined cycle power plants described in items 1-9, adding a second booster pump and a low-temperature regenerator, and connecting the condenser with a condensate pipe
  • the connection between the pipeline and the booster pump is adjusted so that the condenser has a condensate pipeline that is connected to the low-temperature regenerator through the second booster pump. It communicates with the booster pump to form a dual-fuel combined cycle power plant.
  • the dual-fuel combined cycle power plant is any one of the dual-fuel combined cycle power plants described in items 1-9, adding an expansion speed-up steam turbine and replacing the steam turbine, adding a diffuser pipe and replacing the booster pump, A dual-fuel combined cycle power plant is formed.
  • Dual-fuel combined cycle power plant in any of the dual-fuel combined cycle power plants described in items 1-11, adding an expansion speed-up machine and replacing the expander, adding a dual-energy compressor and replacing the compressor , forming a dual-fuel combined cycle power plant.
  • Dual-fuel combined cycle power plant in any of the dual-fuel combined cycle power plants described in items 1-16, the second heat source regenerator is eliminated, and the external air passage is passed through the heat source regenerator and the heat source regenerator.
  • the heating furnace is connected, and the external air channel is connected to the second heating furnace through the second heat source regenerator, and it is adjusted so that the external air channel is connected to the heat source regenerator and then divided into two paths—the first path is connected to the heating furnace , the second road is communicated with the second heating furnace; the second heating furnace has a gas channel to communicate with the outside through the second heat source regenerator, and the second heating furnace has a gas channel to communicate with the outside through the heat source regenerator, forming a dual fuel Combined cycle power plant.
  • Dual-fuel combined cycle power plant mainly composed of steam turbine, booster pump, high temperature heat exchanger, condenser, compressor, expander, heating furnace, second heating furnace, heat source regenerator and second heat source regenerator It consists of low-grade fuel on the outside that communicates with the heating furnace, an air channel on the outside that communicates with the heating furnace through a heat source regenerator, a heating furnace and a gas channel that communicates with the outside through the heat source regenerator, and a high-grade fuel channel on the outside. It communicates with the second heating furnace, and there is an external air channel that communicates with the second heating furnace through the second heat source regenerator.
  • the second heating furnace also has a gas channel that communicates with the outside through the second heat source regenerator. There is a working medium channel outside.
  • the compressor and the working medium channel are connected with the expander through the heating furnace and the second heating furnace, and the expander and the working medium channel are communicated with the outside through the high temperature heat exchanger;
  • the high-temperature heat exchanger has a steam passage that communicates with the steam turbine, and the steam turbine also has a low-pressure steam passage that communicates with the condenser;
  • the condenser also has a cooling medium passage that communicates with the outside, and the expander is connected to the compressor and transmits power to form a dual-fuel combined cycle power plant.
  • Figure 1/14 is a first principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Figure 2/14 is a second principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 3/14 is the third principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Figure 4/14 is a fourth principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 5/14 is the fifth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 6/14 is the sixth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 7/14 is the seventh principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 8/14 is the eighth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 9/14 is the ninth principle thermodynamic system diagram of the dual-fuel combined cycle power plant provided according to the present invention.
  • 10/14 is a tenth principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • 11/14 is an eleventh principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • Fig. 12/14 is a twelfth principle thermodynamic system diagram of a dual-fuel combined cycle power plant provided according to the present invention.
  • 13/14 are diagrams of the thirteenth principle thermodynamic system of the dual-fuel combined cycle power plant provided according to the present invention.
  • 14/14 are diagrams of the fourteenth principle thermodynamic system of the dual-fuel combined cycle power plant provided according to the present invention.
  • the steam flows through the steam turbine 1 to achieve thermal power conversion.
  • the steam at the outlet of the steam turbine 1 has a very low pressure and a small flow rate (corresponding to a small kinetic energy), and the mechanical energy required by the booster pump 2 can be mechanically transmitted by the steam turbine. 1 or provided externally.
  • the relevant heat exchangers are installed inside the heating furnace; for example, the superheater that heats the steam from the high temperature heat exchanger 3 in Fig. 8/14, the A reheater that is heated by steam.
  • the heat source regenerator involves the temperature grade of the gas in the heating furnace (ie, the high temperature section of the heat source), which is listed separately.
  • 1Low-grade fuel refers to the fuel with a relatively low maximum temperature (such as adiabatic combustion temperature or constant-pressure combustion temperature) that can be formed by combustion products; compared with high-quality coal, coal gangue, coal slime, etc. are low-grade fuels. From the concept of heat source, low-grade fuel refers to fuel whose combustion products are difficult to form a high-temperature heat source with higher temperature.
  • 2High-grade fuel refers to the fuel with the highest temperature (such as adiabatic combustion temperature or constant pressure combustion temperature) that can be formed by combustion products; compared with coal gangue, coal slime and other fuels, high-quality coal, natural gas, Methane, hydrogen, etc. are all high-grade fuels. From the concept of heat source, low-grade fuel refers to fuel whose combustion products can form a high-temperature heat source with higher temperature.
  • the gaseous substances of the combustion products are the core of the heat source and are an important part of the thermal system; while the solid substances in the combustion products, such as waste residues, can be used when they contain thermal energy (the utilization process and equipment are included in the The preheated air in the heating furnace or outside the heating furnace body) is discharged after it is not listed separately, and its function is not described separately.
  • a low-grade fuel outside to communicate with the heating furnace 7
  • the outside also has an air passage that communicates with the heating furnace 7 through the heat source regenerator 9
  • the heating furnace 7 also has a gas channel to communicate with the outside through the heat source regenerator 9, and the outside also has high
  • the grade fuel channel communicates with the second heating furnace 8, and there is an external air channel that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source regenerator 10.
  • the compressor 5 has a circulating working medium channel that communicates with the expander 6 through the heating furnace 7 and the second heating furnace 8, and the expander 6 also has a circulating working medium channel that communicates with the compressor 5 through the high temperature heat exchanger 3; the condenser 4.
  • the high-temperature heat exchanger 3 has a steam channel communicated with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam channel communicated with the condenser 4; the condenser 4 also There are cooling medium passages that communicate with the outside, and the expander 6 is connected to the compressor 5 and transmits power.
  • the external low-grade fuel enters the heating furnace 7, and the first external air flows through the heat source regenerator 9 and enters the heating furnace 7 after absorbing heat and heating up, and the low-grade fuel and air are mixed in the heating furnace 7 and burned into a
  • the gas in the heating furnace 7 releases heat to the circulating working medium 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 external high-grade fuel enters the second heating furnace 8.
  • the external second air flows through the second heat source regenerator 10 and then enters the second heating furnace 8 after absorbing heat and heating up.
  • the circulating working medium flows through it and cools down, and then flows through the second heat source regenerator 10 to release heat to cool down and discharge to the outside; the circulating working medium discharged from the compressor 5 flows through the heating furnace 7 and the second heating furnace 8 and gradually absorbs it.
  • the heat rises up flows through the expander 6 to depressurize the work, flows through the high-temperature heat exchanger 3 to release heat and cools down, and then enters the compressor 5 to raise the pressure and raise the temperature; the condensate of the condenser 4 flows through the booster pump 2 to raise
  • the high-temperature heat exchanger 3 absorbs heat to heat up, vaporize and superheat, and then enters the steam turbine 1 to depressurize and perform work, and the low-pressure steam discharged from the steam turbine 1 enters the condenser 4 to release heat and condense; the low-grade fuel passes through the heating furnace 7 and the high-grade fuel passes through the No.
  • the two heating furnaces 8 jointly provide the driving heat load, and the cooling medium takes away the low-temperature heat load through the condenser 4;
  • the work is provided to the booster pump 2, the compressor 5 and the external power to form a dual-fuel combined cycle power plant.
  • the regenerator is composed of; the external low-grade fuel is communicated with the heating furnace 7, the external air passage is communicated with the heating furnace 7 through the heat source regenerator 9, and the heating furnace 7 also has a gas channel communicated with the outside through the heat source regenerator 9 , there is a high-grade fuel channel on the outside that communicates with the second heating furnace 8, and an air channel on the outside that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source.
  • the regenerator 10 is communicated with the outside; the compressor 5 has a circulating working medium channel which is communicated with the expander 6 through the high temperature regenerator 11, the heating furnace 7 and the second heating furnace 8, and the expander 6 also has a circulating working medium channel which is returned to the expander 6 at a high temperature.
  • the heat exchanger 11 and the warm heat exchanger 3 communicate with the compressor 5; the condenser 4 has a condensate pipeline connected with the high temperature heat exchanger 3 through the booster pump 2, and then the high temperature heat exchanger 3 has a steam passage communicated with the steam turbine 1,
  • the steam turbine 1 also has a low-pressure steam passage that communicates with the condenser 4; the condenser 4 also has a cooling medium passage that communicates with the outside, and the expander 6 is connected to the compressor 5 and transmits power.
  • the regenerator is composed of; the external low-grade fuel is communicated with the heating furnace 7, the external air passage is communicated with the heating furnace 7 through the heat source regenerator 9, and the heating furnace 7 also has a gas channel communicated with the outside through the heat source regenerator 9 , there is a high-grade fuel channel on the outside that communicates with the second heating furnace 8, and an air channel on the outside that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source.
  • the regenerator 10 is communicated with the outside; the compressor 5 has a circulating working medium channel which is communicated with the expander 6 through the heating furnace 7, the high temperature regenerator 11 and the second heating furnace 8, and the expander 6 also has a circulating working medium channel which is returned to the expander 6 at a high temperature.
  • the heat exchanger 11 and the warm heat exchanger 3 communicate with the compressor 5; the condenser 4 has a condensate pipeline connected with the high temperature heat exchanger 3 through the booster pump 2, and then the high temperature heat exchanger 3 has a steam passage communicated with the steam turbine 1,
  • the steam turbine 1 also has a low-pressure steam passage in communication with the condenser 4; the condenser 4 also has a cooling medium passage in communication with the outside, and the expander 6 is connected to the compressor 5 and transmits power.
  • the regenerator is composed of; the external low-grade fuel is communicated with the heating furnace 7, the external air passage is communicated with the heating furnace 7 through the heat source regenerator 9, and the heating furnace 7 also has a gas channel communicated with the outside through the heat source regenerator 9 , there is a high-grade fuel channel on the outside that communicates with the second heating furnace 8, and an air channel on the outside that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source.
  • the regenerator 10 is communicated with the outside; the compressor 5 has a circulating working medium channel through the high temperature regenerator 11, the heating furnace 7 and the second heating furnace 8 and is connected with the expander 6, and then the expander 6 has a circulating working medium channel through the high temperature return.
  • Heater 11 is communicated with itself, expander 6 and circulating working medium channel are communicated with compressor 5 through high temperature heat exchanger 3;
  • the heat exchanger 3 has a steam passage in communication with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam passage in communication with the condenser 4; the condenser 4 also has a cooling medium passage in communication with the outside, and the expander 6 is connected to the compressor 5 and transmits power.
  • the dual-fuel combined cycle power plant shown in Figure 5/14 is implemented as follows:
  • the regenerator is composed of; the external low-grade fuel is communicated with the heating furnace 7, the external air passage is communicated with the heating furnace 7 through the heat source regenerator 9, and the heating furnace 7 also has a gas channel communicated with the outside through the heat source regenerator 9 , there is a high-grade fuel channel on the outside that communicates with the second heating furnace 8, and an air channel on the outside that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source.
  • the regenerator 10 is communicated with the outside; the compressor 5 has a circulating working medium channel through the heating furnace 7, the high temperature regenerator 11 and the second heating furnace 8 and is connected with the expander 6, and then the expander 6 has a circulating working medium channel through the high temperature return.
  • Heater 11 is communicated with itself, expander 6 and circulating working medium channel are communicated with compressor 5 through high temperature heat exchanger 3;
  • the heat exchanger 3 has a steam passage in communication with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam passage in communication with the condenser 4; the condenser 4 also has a cooling medium passage in communication with the outside, and the expander 6 is connected to the compressor 5 and transmits power.
  • the dual-fuel combined cycle powerplant shown in Figure 6/14 is implemented as follows:
  • the regenerator is composed of; the external low-grade fuel is communicated with the heating furnace 7, the external air passage is communicated with the heating furnace 7 through the heat source regenerator 9, and the heating furnace 7 also has a gas channel communicated with the outside through the heat source regenerator 9 , there is a high-grade fuel channel on the outside that communicates with the second heating furnace 8, and an air channel on the outside that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source.
  • the regenerator 10 is communicated with the outside; the compressor 5 has a circulating working fluid channel which is communicated with the expander 6 through the heating furnace 7 and the second heating furnace 8, and the expander 6 also has a circulating working fluid channel through the high temperature regenerator 11 and the high temperature heat exchanger.
  • the compressor 5 After the exchanger 3 is communicated with the compressor 5, the compressor 5 has a circulating working medium channel to communicate with itself through the high temperature regenerator 11; the condenser 4 has a condensate pipeline that communicates with the high temperature heat exchanger 3 through the booster pump 2,
  • the heat exchanger 3 has a steam passage in communication with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam passage in communication with the condenser 4; the condenser 4 also has a cooling medium passage in communication with the outside, and the expander 6 is connected to the compressor 5 and transmits power.
  • the regenerator is composed of; the external low-grade fuel is communicated with the heating furnace 7, the external air passage is communicated with the heating furnace 7 through the heat source regenerator 9, and the heating furnace 7 also has a gas channel communicated with the outside through the heat source regenerator 9 , there is a high-grade fuel channel on the outside that communicates with the second heating furnace 8, and an air channel on the outside that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source.
  • the regenerator 10 communicates with the outside; the compressor 5 has a circulating working medium channel that communicates with the expander 6 through the heating furnace 7 and the second heating furnace 8, and then the expander 6 has a circulating working medium channel that communicates with itself through the high temperature regenerator 11.
  • the expander 6 also has a circulating working medium channel that communicates with the compressor 5 through the high-temperature heat exchanger 3, and then the compressor 5 has a circulating working medium channel that communicates with itself through the high-temperature regenerator 11; the condenser 4 has a condensate pipeline through the After the booster pump 2 is communicated with the high-temperature heat exchanger 3, the high-temperature heat exchanger 3 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 condenser 4; the condenser 4 also has a cooling medium passage that communicates with the outside. , the expander 6 is connected to the compressor 5 and transmits power.
  • the dual-fuel combined cycle powerplant shown in Figure 8/14 is implemented as follows:
  • the high heat exchanger 3 has a steam passage connected with the steam turbine 1 and is adjusted so that the high heat exchanger 3 has a steam passage through the heating furnace 7 and the steam turbine 1 Connected.
  • the dual-fuel combined cycle powerplant shown in Figure 9/14 is implemented as follows:
  • the high heat exchanger 3 has a steam passage and is connected to the steam turbine 1 and is adjusted so that the high heat exchanger 3 has a steam passage and the steam turbine 1 communicates with the steam turbine 1. There is also a steam passage communicating with itself through the heating furnace 7 .
  • the dual-fuel combined cycle powerplant shown in Figure 10/14 is implemented as follows:
  • the dual-fuel combined cycle powerplant shown in Figure 11/14 is implemented as follows:
  • the dual-fuel combined cycle powerplant shown in Figure 12/14 is implemented as follows:
  • a low-grade fuel outside to communicate with the heating furnace 7
  • the outside also has an air passage that communicates with the heating furnace 7 through the heat source regenerator 9
  • the heating furnace 7 also has a gas channel to communicate with the outside through the heat source regenerator 9, and the outside also has high
  • the grade fuel channel communicates with the second heating furnace 8, and there is an external air channel that communicates with the second heating furnace 8 through the second heat source regenerator 10, and the second heating furnace 8 also has a gas channel through the second heat source regenerator 10.
  • external working medium channel is communicated with compressor 5, compressor 5 and working medium channel are communicated with expander 6 through heating furnace 7 and second heating furnace 8, expander 6 also has working medium channel through high temperature heat exchange
  • the condenser 3 is communicated with the outside; the condenser 4 has a condensate pipeline connected with the high-temperature heat exchanger 3 through the booster pump 2, and then the high-temperature heat exchanger 3 has a steam passage communicated with the steam turbine 1, and the steam turbine 1 also has a low-pressure steam passage and condensate.
  • the condenser 4 communicates with the outside; the condenser 4 also has a cooling medium channel to communicate with the outside, and the expander 6 is connected to the compressor 5 and transmits power.
  • the external low-grade fuel enters the heating furnace 7, and the first external air flows through the heat source regenerator 9 and enters the heating furnace 7 after absorbing heat and heating up, and the low-grade fuel and air are mixed in the heating furnace 7 and burned into a
  • the gas in the heating furnace 7 releases heat to the working medium 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 external high-grade fuel enters the second heating furnace 8 , the external second air flows through the second heat source regenerator 10 and then enters the second heating furnace 8 after absorbing heat and heating up.
  • the working medium flows through it and cools down, and then flows through the second heat source regenerator 10 to release heat and cool down and discharge to the outside; Gradually absorb heat and raise the temperature, flow through the expander 6 to depressurize and perform work, and flow through the high-temperature heat exchanger 3 to release heat and cool down, and then discharge to the outside;
  • the steam generator 3 absorbs heat to heat up, vaporize and superheat, and then enters the steam turbine 1 to depressurize and perform work, and the low-pressure steam discharged from the steam turbine 1 enters the condenser 4 to release heat and condense; the low-grade fuel passes through the heating furnace 7 and the high-grade fuel passes through the second heating furnace.
  • the working medium takes away the low temperature heat load through the in and out process
  • the work output by the steam turbine 1 and the expander 6 is provided to the compressor 5 and external power
  • the work output by the steam turbine 1 and the expander 6 is provided to the booster pump 2, the compressor 5 and the external power to form a dual-fuel combined cycle power plant.
  • Low-grade fuel can be used or helpful to reduce the compression ratio of the top gas power cycle system, increase the flow rate of the gas cycle working medium, and is conducive to the construction of a large-load combined cycle power plant.
  • the grade of the high-temperature heat source can be significantly improved, and the utilization value of the low-grade fuel can be improved.

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Abstract

本发明提供双燃料联合循环动力装置，属于热力学与热动技术领域。外部有低品位燃料连通加热炉，外部还有空气通道经热源回热器连通加热炉，加热炉还有燃气通道经热源回热器连通外部，外部还有高品位燃料通道连通第二加热炉，外部还有空气通道经第二热源回热器连通第二加热炉，第二加热炉还有燃气通道经第二热源回热器连通外部；压缩机有循环工质通道经加热炉和第二加热炉连通膨胀机，膨胀机还有循环工质通道经高温热交换器连通压缩机；冷凝器经升压泵连通高温热交换器之后高温热交换器再有蒸汽通道连通汽轮机，汽轮机还有低压蒸汽通道连通冷凝器；冷凝器还有冷却介质通道连通外部，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。

Description

双燃料联合循环动力装置 技术领域：
本发明属于热力学与热动技术领域。
背景技术：
冷需求、热需求和动力需求，为人类生活与生产当中所常见；其中，将优质燃料的化学能通过燃烧转换为热能，进而通过气体-蒸汽动力装置再将热能高效地转换为机械能，是向人类提供动力或电力的重要手段之一。
燃料有不同的种类和不同的性质，其中燃料燃烧所形成燃气的温度高低直接决定着热变功效率；从燃烧形成的燃气温度(如定压燃烧温度)来看，定压燃烧温度高的高品位燃料，对应着高品位热源，可转化更多的机械能；而定压燃烧温度低的低品位燃料，难以形成高温燃烧产物，对应着低品位热源——相对前者，可转化较少的机械能。
由于受限于工作原理，或受限于工作介质的性质，或受限于材料性质，或受限于压缩设备及其它部件的制造水平等原因，采用高品位优质燃料的气体动力装置中，燃烧过程中存在较大温差不可逆损失，这导致燃料利用上的质量损失——不过，这为低品位燃料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使用，实现取长补短和优势互补，大幅度提高低品位燃料热变功效率和利用价值，减少温室气体排放，并能够有效降低燃料成本的双燃料联合循环动力装置。发明内容：
本发明主要目的是要提供双燃料联合循环动力装置，具体发明内容分项阐述如下：
1.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；压缩机有循环工质通道经加热炉和第二加热炉与膨胀机连通，膨胀机还有循环工质通道经高温热交换器与压缩机连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
2.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；压缩机有循环工质通道经高温回热器、加热炉和第二加热炉与膨胀 机连通，膨胀机还有循环工质通道经高温回热器和温热交换器与压缩机连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
3.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；压缩机有循环工质通道经加热炉、高温回热器和第二加热炉与膨胀机连通，膨胀机还有循环工质通道经高温回热器和温热交换器与压缩机连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
4.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；压缩机有循环工质通道经高温回热器、加热炉和第二加热炉与膨胀机连通之后膨胀机再有循环工质通道经高温回热器与自身连通，膨胀机还有循环工质通道经高温热交换器与压缩机连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
5.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；压缩机有循环工质通道经加热炉、高温回热器和第二加热炉与膨胀机连通之后膨胀机再有循环工质通道经高温回热器与自身连通，膨胀机还有循环工质通道经高温热交换器与压缩机连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
6.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成； 外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；压缩机有循环工质通道经加热炉和第二加热炉与膨胀机连通，膨胀机还有循环工质通道经高温回热器和高温热交换器与压缩机连通之后压缩机再有循环工质通道经高温回热器与自身连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
7.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；压缩机有循环工质通道经加热炉和第二加热炉与膨胀机连通之后膨胀机再有循环工质通道经高温回热器与自身连通，膨胀机还有循环工质通道经高温热交换器与压缩机连通之后压缩机再有循环工质通道经高温回热器与自身连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
8.双燃料联合循环动力装置，是在第1-7项所述的任一一款双燃料联合循环动力装置中，将高热交换器有蒸汽通道与汽轮机连通调整为高热交换器有蒸汽通道经加热炉与汽轮机连通，形成双燃料联合循环动力装置。
9.双燃料联合循环动力装置，是在第1-7项所述的任一一款双燃料联合循环动力装置中，将高热交换器有蒸汽通道与汽轮机连通调整为高热交换器有蒸汽通道与汽轮机连通之后汽轮机再有蒸汽通道经加热炉与自身连通，形成双燃料联合循环动力装置。
10.双燃料联合循环动力装置，是在第1-9项所述的任一一款双燃料联合循环动力装置中，增加第二升压泵和低温回热器，将冷凝器有冷凝液管路与升压泵连通调整为冷凝器有冷凝液管路经第二升压泵与低温回热器连通，汽轮机增设抽汽通道与低温回热器连通，低温回热器再有冷凝液管路与升压泵连通，形成双燃料联合循环动力装置。
11.双燃料联合循环动力装置，是在第1-9项所述的任一一款双燃料联合循环动力装置中，增加膨胀增速汽轮机并取代汽轮机，增加扩压管并取代升压泵，形成双燃料联合循环动力装置。
12.双燃料联合循环动力装置，是在第1-11项所述的任一一款双燃料联合循环动力装置中，增加膨胀增速机并取代膨胀机，增加双能压缩机并取代压缩机，形成双燃料联合循环动力装置。
13.双燃料联合循环动力装置，是在第1-16项所述的任一一款双燃料联合循环动力装置中，取消第二热源回热器，将外部有空气通道经热源回热器与加热炉连通，以及外部有 空气通道经第二热源回热器与第二加热炉连通，一并调整为外部有空气通道与热源回热器连通之后分成两路——第一路与加热炉连通，第二路与第二加热炉连通；将第二加热炉有燃气通道经第二热源回热器与外部连通调整为第二加热炉有燃气通道经热源回热器与外部连通，形成双燃料联合循环动力装置。
14.双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料与加热炉连通，外部还有空气通道经热源回热器与加热炉连通，加热炉还有燃气通道经热源回热器与外部连通，外部还有高品位燃料通道与第二加热炉连通，外部还有空气通道经第二热源回热器与第二加热炉连通，第二加热炉还有燃气通道经第二热源回热器与外部连通；外部有工作介质通道与压缩机连通，压缩机还有工作介质通道经加热炉和第二加热炉与膨胀机连通，膨胀机还有工作介质通道经高温热交换器与外部连通；冷凝器有冷凝液管路经升压泵与高温热交换器连通之后高温热交换器再有蒸汽通道与汽轮机连通，汽轮机还有低压蒸汽通道与冷凝器连通；冷凝器还有冷却介质通道与外部连通，膨胀机连接压缩机并传输动力，形成双燃料联合循环动力装置。
附图说明：
图1/14是依据本发明所提供的双燃料联合循环动力装置第1种原则性热力系统图。
图2/14是依据本发明所提供的双燃料联合循环动力装置第2种原则性热力系统图。
图3/14是依据本发明所提供的双燃料联合循环动力装置第3种原则性热力系统图。
图4/14是依据本发明所提供的双燃料联合循环动力装置第4种原则性热力系统图。
图5/14是依据本发明所提供的双燃料联合循环动力装置第5种原则性热力系统图。
图6/14是依据本发明所提供的双燃料联合循环动力装置第6种原则性热力系统图。
图7/14是依据本发明所提供的双燃料联合循环动力装置第7种原则性热力系统图。
图8/14是依据本发明所提供的双燃料联合循环动力装置第8种原则性热力系统图。
图9/14是依据本发明所提供的双燃料联合循环动力装置第9种原则性热力系统图。
图10/14是依据本发明所提供的双燃料联合循环动力装置第10种原则性热力系统图。
图11/14是依据本发明所提供的双燃料联合循环动力装置第11种原则性热力系统图。
图12/14是依据本发明所提供的双燃料联合循环动力装置第12种原则性热力系统图。
图13/14是依据本发明所提供的双燃料联合循环动力装置第13种原则性热力系统图。
图14/14是依据本发明所提供的双燃料联合循环动力装置第14种原则性热力系统图。
图中，1-汽轮机，2-升压泵，3-高温热交换器，4-冷凝器，5-压缩机，6-膨胀机，7-加热炉，8-第二加热炉，9-热源回热器，10-第二热源回热器，11-高温回热器，12-第二升压泵，13-低温回热器，14-膨胀增速汽轮机，15-扩压管，16-膨胀增速机，17-双能压缩机。
关于膨胀增速汽轮机、加热炉、热源回热器、低品位燃料和高品位燃料，这里给出如下简要说明：
(1)为揭示汽轮机1和膨胀增速汽轮机14在工作机理上的区别，这里作如下解释：
①图1/14中，蒸汽流经汽轮机1实现热变功，汽轮机1出口蒸汽具有很低压力和较小流速(对应较小的动能)，升压泵2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11/14中，膨胀增速汽轮机14出口蒸汽同样具有很低的压力，但流速 相对较大(一部分压降转换为低压蒸汽的动能)以满足扩压管15降速升压的需要。
③对图1/14中蒸汽流经汽轮机1实现热变功的过程采用“降压作功”，对图11/14中蒸汽流经膨胀增速汽轮机14实现热变功的过程采用“降压作功并增速”来表示。
(2)关于加热炉和热源回热器的说明：
①根据需要，加热炉内部设置相关热交换器(换热管束)；如，图8/14中对来自高温热交换器3的蒸汽进行加热的过热器，图9/14中对来自汽轮机1的蒸汽进行加热的再热器。
②不具体指明具体换热管束，而统一采用加热炉来表述。
③热源回热器涉及加热炉内燃气(即热源高温段)的温度品位，单独列出。
(3)低品位燃料和高品位燃料：
①低品位燃料：指的是燃烧产物所能够形成的最高温度(比如绝热燃烧温度或定压燃烧温度)相对较低的燃料；相对于优质煤炭，煤矸石、煤泥等则是低品位燃料。从热源的概念来看，低品位燃料指的是燃烧产物难以形成较高温度的高温热源的燃料。
②高品位燃料：指的是燃烧产物所能够形成的最高温度(比如绝热燃烧温度或定压燃烧温度)相对较高的燃料；相对于煤矸石、煤泥等燃料而言，优质煤、天然气、甲烷、氢气等都是高品位燃料。从热源的概念来看，低品位燃料指的是燃烧产物能够形成较高温度的高温热源的燃料。
③对固体燃料来说，燃烧产物的气态物质是构成热源的核心，是热力系统的重要组成部分；而燃烧产物中的固态物质，如废渣，在其含有热能得到利用(利用流程及设备包含在加热炉内或在加热炉本体之外预热空气)之后被排出，不单独列出，其作用不单独表述。
④受限于现行技术条件或材料性能等原因，尤其对于需要通过间接手段向循环工质提供驱动高温热负荷的燃料来说，它们的品位高低应以燃烧产物所能够形成的最高温度减去间接传热温差之后的温度高低来划分；或者，以现行技术条件下能够使循环工质所能达到的温度高低来划分——使循环工质(工作介质)能够达到的温度更高者为高品位燃料，使循环工质(工作介质)能够达到的温度较低者为低品位燃料。
具体实施方式：
首先要说明的是，在结构和流程的表述上，非必要情况下不重复进行；对显而易见的流程不作表述。下面结合附图和实例来详细描述本发明。
图1/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；压缩机5有循环工质通道经加热炉7和第二加热炉8与膨胀机6连通，膨胀机6还有循环工质通道经高温热交换器3与压缩机5连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，外部低品位燃料进入加热炉7，外部第一路空气流经热源回热器9吸热升温之后进入加热炉7，低品位燃料和空气在加热炉7内混合并燃烧成温度较高的燃气，加热炉7内的燃气放热于流经其内的循环工质并降温，之后流经热源回热器9放热降温和对外排放；外部高品位燃料进入第二加热炉8，外部第二路空气流经第二热源回热器10吸热升温之后进入第二加热炉8，高品位燃料和空气在第二加热炉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；压缩机5排放的循环工质流经加热炉7和第二加热炉8逐步吸热升温，流经膨胀机6降压作功，流经高温热交换器3放热降温，之后进入压缩机5升压升温；冷凝器4的冷凝液流经升压泵2升压，流经高温热交换器3吸热升温、汽化和过热，之后进入汽轮机1降压作功，汽轮机1排放的低压蒸汽进入冷凝器4放热并冷凝；低品位燃料通过加热炉7和高品位燃料通过第二加热炉8共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷；汽轮机1和膨胀机6输出的功提供给压缩机5和外部作动力，或汽轮机1和膨胀机6输出的功提供给升压泵2、压缩机5和外部作动力，形成双燃料联合循环动力装置。
图2/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；压缩机5有循环工质通道经高温回热器11、加热炉7和第二加热炉8与膨胀机6连通，膨胀机6还有循环工质通道经高温回热器11和温热交换器3与压缩机5连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：压缩机5排放的循环工质流经高温回热器11、加热炉7和第二加热炉8逐步吸热升温，流经膨胀机6降压作功，流经高温回热器11和高温热交换器3逐步放热降温，之后进入压缩机5升压升温，形成双燃料联合循环动力装置。
图3/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；压缩机5有循环工质通道经加热炉7、高温回热器11和第二加热炉8与膨胀机6连通，膨胀机6还有循环工质通道经高温回热器11和温热交换器3与压缩机5连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4 还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：压缩机5排放的循环工质流经加热炉7、高温回热器11和第二加热炉8逐步吸热升温，流经膨胀机6降压作功，流经高温回热器11和高温热交换器3逐步放热降温，之后进入压缩机5升压升温，形成双燃料联合循环动力装置。
图4/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；压缩机5有循环工质通道经高温回热器11、加热炉7和第二加热炉8与膨胀机6连通之后膨胀机6再有循环工质通道经高温回热器11与自身连通，膨胀机6还有循环工质通道经高温热交换器3与压缩机5连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：压缩机5排放的循环工质流经高温回热器11、加热炉7和第二加热炉8逐步吸热升温，进入膨胀机6降压作功至一定程度之后流经高温回热器11放热降温，然后进入膨胀机6继续降压作功；膨胀机6排放的循环工质流经高温热交换器3放热降温，之后进入压缩机5升压升温，形成双燃料联合循环动力装置。
图5/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；压缩机5有循环工质通道经加热炉7、高温回热器11和第二加热炉8与膨胀机6连通之后膨胀机6再有循环工质通道经高温回热器11与自身连通，膨胀机6还有循环工质通道经高温热交换器3与压缩机5连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：压缩机5排放的循环工质流经加热炉7、高温回热器11和第二加热炉8吸热升温，进入膨胀机6降压作功至一定程度之后流经高温回热器11放热降温，然后进入膨胀机6继续降压作功；膨胀机6排放的循环工质流经高温热交换器3放热降温，之后进入压缩机5继续升压升温， 形成双燃料联合循环动力装置。
图6/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；压缩机5有循环工质通道经加热炉7和第二加热炉8与膨胀机6连通，膨胀机6还有循环工质通道经高温回热器11和高温热交换器3与压缩机5连通之后压缩机5再有循环工质通道经高温回热器11与自身连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：压缩机5排放的循环工质流经加热炉7和第二加热炉8逐步吸热升温，流经膨胀机6降压作功，流经高温回热器11和高温热交换器3逐步放热降温，进入压缩机5升压升温至一定程度之后流经高温回热器11吸热升温，然后进入压缩机5继续升压升温，形成双燃料联合循环动力装置。
图7/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；压缩机5有循环工质通道经加热炉7和第二加热炉8与膨胀机6连通之后膨胀机6再有循环工质通道经高温回热器11与自身连通，膨胀机6还有循环工质通道经高温热交换器3与压缩机5连通之后压缩机5再有循环工质通道经高温回热器11与自身连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：压缩机5排放的循环工质流经加热炉7和第二加热炉8逐步吸热升温，进入膨胀机6降压作功至一定程度之后流经高温回热器11放热降温，然后进入膨胀机6继续降压作功；膨胀机6排放的循环工质流经高温热交换器3放热降温，进入压缩机5升压升温至一定程度之后流经高温回热器11吸热升温，然后进入压缩机5继续升压升温，形成双燃料联合循环动力装置。
图8/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，在图1/14所示的双燃料联合循环动力装置中，将高热交换器3有蒸汽通道与汽轮机1连通调整为高热交换器3有蒸汽通道经加热炉7与汽轮机1连通。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：高温热交换器3排放的蒸汽流经加热炉7吸热升温，之后进入汽轮机1降压作功，形成双燃料联合循环动力装置。
图9/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，在图1/14所示的双燃料联合循环动力装置中，将高热交换器3有蒸汽通道与汽轮机1连通调整为高热交换器3有蒸汽通道与汽轮机1连通之后汽轮机1再有蒸汽通道经加热炉7与自身连通。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：高温热交换器3排放的蒸汽进入汽轮机1降压作功至一定程度之后流经加热炉7吸热升温，然后进入汽轮机1继续降压作功，形成双燃料联合循环动力装置。
图10/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，在图1/14所示的双燃料联合循环动力装置中，增加第二升压泵和低温回热器，将冷凝器4有冷凝液管路与升压泵2连通调整为冷凝器4有冷凝液管路经第二升压泵12与低温回热器13连通，汽轮机1增设抽汽通道与低温回热器13连通，低温回热器13再有冷凝液管路与升压泵2连通。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：冷凝器4排放的冷凝液流经第二升压泵12升压之后进入低温回热器13，与来自汽轮机1的抽汽混合、吸热和升温，抽汽放热成冷凝液；低温回热器13的冷凝液流经升压泵2升压，流经高温热交换器3吸热升温、汽化和过热，之后进入汽轮机1降压作功；进入汽轮机1的蒸汽降压作功至一定程度之后分成两路——第一路提供给低温回热器13，第二路继续降压作功之后进入冷凝器4放热并冷凝，形成双燃料联合循环动力装置。
图11/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，在图1/14所示的双燃料联合循环动力装置中，增加膨胀增速汽轮机14并取代汽轮机1，增加扩压管15并取代升压泵2。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：冷凝器4的冷凝液流经扩压管15降速升压，流经高温热交换器3吸热升温、汽化和过热，流经膨胀增速汽轮机14降压作功并增速，之后进入冷凝器4放热并冷凝；膨胀机6和膨胀增速汽轮机14输出的功提供给压缩机5和外部作动力，形成双燃料联合循环动力装置。
图12/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，在图1/14所示的双燃料联合循环动力装置中，增加膨胀增速机16并取代膨胀机6，增加双能压缩机17并取代压缩机5。
(2)流程上，与图1/14所示的双燃料联合循环动力装置相比较，不同之处在于：双能压缩机17排放的循环工质流经加热炉7和第二加热炉8逐步吸热升温，流经膨胀增速机16降压作功并增速，流经高温热交换器3放热降温，之后进入双能压缩机17升压升温并降速，汽轮机1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，或汽轮机1和膨胀增速机16输出的功提供给升压泵2、双能压缩机17和外部作动力，形成双燃料联合循环动力装置。
图13/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，在图1/14所示的双燃料联合循环动力装置中，取消第二热源回热器，将外部有空气通道经热源回热器9与加热炉7连通，以及外部有空气通道经第二热源回热器10与第二加热炉8连通，一并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——第一路与加热炉7连通，第二路与第二加热炉8连通；将第二加热炉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加热炉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动力装置相比，不同之处在于：第二加热炉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——第一路进入加热炉7参与燃烧，第二路进入第二加热炉8参与燃烧，形成双燃料联合循环动力装置。
图14/14所示的双燃料联合循环动力装置是这样实现的：
(1)结构上，它主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料与加热炉7连通，外部还有空气通道经热源回热器9与加热炉7连通，加热炉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加热炉8连通，外部还有空气通道经第二热源回热器10与第二加热炉8连通，第二加热炉8还有燃气通道经第二热源回热器10与外部连通；外部有工作介质通道与压缩机5连通，压缩机5还有工作介质通道经加热炉7和第二加热炉8与膨胀机6连通，膨胀机6还有工作介质通道经高温热交换器3与外部连通；冷凝器4有冷凝液管路经升压泵2与高温热交换器3连通之后高温热交换器3再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冷凝器4连通；冷凝器4还有冷却介质通道与外部连通，膨胀机6连接压缩机5并传输动力。
(2)流程上，外部低品位燃料进入加热炉7，外部第一路空气流经热源回热器9吸热升温之后进入加热炉7，低品位燃料和空气在加热炉7内混合并燃烧成温度较高的燃气，加热炉7内的燃气放热于流经其内的工作介质并降温，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加热炉8，外部第二路空气流经第二热源回热器10吸热升温之后进入第二加热炉8，高品位燃料和空气在第二加热炉8内混合并燃烧成高温燃气，高温燃气放热于流经其内的工作介质并降温，之后流经第二热源回热器10放热降温和对外排放；外部工作介质流经压缩机5升压升温，流经加热炉7和第二加热炉8逐步吸热升温，流经膨胀机6降压作功，流经高温热交换器3放热降温，之后对外排放；冷凝器4的冷凝液流经升压泵2升压，流经高温热交换器3吸热升温、汽化和过热，之后进入汽轮机1降压作功，汽轮机1排放的低压蒸汽进入冷凝器4放热并冷凝；低品位燃料通过加热炉7和高品位燃料通过第二加热炉8共同提供驱动热负荷，冷却介质通过冷凝器4带走低温热负荷，工作介质通过进出流程带走低温热负荷；汽轮机1和膨胀机6输出的功提供给压缩机5和外部作动力，或汽轮机1和膨胀机6输出的功提供给升压泵2、压缩机5和外部作动力，形成双燃料联合循环动力装置。
本发明技术可以实现的效果——本发明所提出的双燃料联合循环动力装置，具有如下效果和优势：
(1)低品位燃料与高品位燃料合理搭配，共同提高驱动热负荷，有效降低燃料成本。
(2)高温驱动热负荷分级利用，显著降低温差不可逆损失，有效提升装置热效率。
(3)低品位燃料结合高品位燃料为双燃料联合循环动力装置提供高温驱动热负荷，低品位燃料发挥出高品位燃料效果，大幅度提升低品位燃料转换为机械能的经济价值。
(4)低品位燃料可用于或有助于降低顶部气体动力循环系统压缩比，提升气体循环工质流量，有利于构建大负荷联合循环动力装置。
(5)单独利用低品位燃料时，能够显著提升高温热源品位，提升低品位燃料利用价值。
(6)提升热动装置燃料选择范围和使用价值，降低装置能耗成本。
(7)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。
(8)结构简单，流程合理，方案丰富，有利于降低装置的制造成本和扩展技术应用范围。

Claims (14)

  1. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7)连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8)连通，第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；压缩机(5)有循环工质通道经加热炉(7)和第二加热炉(8)与膨胀机(6)连通，膨胀机(6)还有循环工质通道经高温热交换器(3)与压缩机(5)连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
  2. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7)连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8)连通，第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；压缩机(5)有循环工质通道经高温回热器(11)、加热炉(7)和第二加热炉(8)与膨胀机(6)连通，膨胀机(6)还有循环工质通道经高温回热器(11)和温热交换器(3)与压缩机(5)连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
  3. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7)连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8)连通，第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；压缩机(5)有循环工质通道经加热炉(7)、高温回热器(11)和第二加热炉(8)与膨胀机(6)连通，膨胀机(6)还有循环工质通道经高温回热器(11)和温热交换器(3)与压缩机(5)连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
  4. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7) 连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8)连通，第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；压缩机(5)有循环工质通道经高温回热器(11)、加热炉(7)和第二加热炉(8)与膨胀机(6)连通之后膨胀机(6)再有循环工质通道经高温回热器(11)与自身连通，膨胀机(6)还有循环工质通道经高温热交换器(3)与压缩机(5)连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
  5. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7)连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8)连通，第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；压缩机(5)有循环工质通道经加热炉(7)、高温回热器(11)和第二加热炉(8)与膨胀机(6)连通之后膨胀机(6)再有循环工质通道经高温回热器(11)与自身连通，膨胀机(6)还有循环工质通道经高温热交换器(3)与压缩机(5)连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
  6. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7)连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8)连通，第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；压缩机(5)有循环工质通道经加热炉(7)和第二加热炉(8)与膨胀机(6)连通，膨胀机(6)还有循环工质通道经高温回热器(11)和高温热交换器(3)与压缩机(5)连通之后压缩机(5)再有循环工质通道经高温回热器(11)与自身连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
  7. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器、第二热源回热器和高温回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7)连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8) 连通，第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；压缩机(5)有循环工质通道经加热炉(7)和第二加热炉(8)与膨胀机(6)连通之后膨胀机(6)再有循环工质通道经高温回热器(11)与自身连通，膨胀机(6)还有循环工质通道经高温热交换器(3)与压缩机(5)连通之后压缩机(5)再有循环工质通道经高温回热器(11)与自身连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
  8. 双燃料联合循环动力装置，是在权利要求1-7所述的任一一款双燃料联合循环动力装置中，将高热交换器(3)有蒸汽通道与汽轮机(1)连通调整为高热交换器(3)有蒸汽通道经加热炉(7)与汽轮机(1)连通，形成双燃料联合循环动力装置。
  9. 双燃料联合循环动力装置，是在权利要求1-7所述的任一一款双燃料联合循环动力装置中，将高热交换器(3)有蒸汽通道与汽轮机(1)连通调整为高热交换器(3)有蒸汽通道与汽轮机(1)连通之后汽轮机(1)再有蒸汽通道经加热炉(7)与自身连通，形成双燃料联合循环动力装置。
  10. 双燃料联合循环动力装置，是在权利要求1-9所述的任一一款双燃料联合循环动力装置中，增加第二升压泵和低温回热器，将冷凝器(4)有冷凝液管路与升压泵(2)连通调整为冷凝器(4)有冷凝液管路经第二升压泵(12)与低温回热器(13)连通，汽轮机(1)增设抽汽通道与低温回热器(13)连通，低温回热器(13)再有冷凝液管路与升压泵(2)连通，形成双燃料联合循环动力装置。
  11. 双燃料联合循环动力装置，是在权利要求1-9所述的任一一款双燃料联合循环动力装置中，增加膨胀增速汽轮机(14)并取代汽轮机(1)，增加扩压管(15)并取代升压泵(2)，形成双燃料联合循环动力装置。
  12. 双燃料联合循环动力装置，是在权利要求1-11所述的任一一款双燃料联合循环动力装置中，增加膨胀增速机(16)并取代膨胀机(6)，增加双能压缩机(17)并取代压缩机(5)，形成双燃料联合循环动力装置。
  13. 双燃料联合循环动力装置，是在权利要求1-16所述的任一一款双燃料联合循环动力装置中，取消第二热源回热器，将外部有空气通道经热源回热器(9)与加热炉(7)连通，以及外部有空气通道经第二热源回热器(10)与第二加热炉(8)连通，一并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——第一路与加热炉(7)连通，第二路与第二加热炉(8)连通；将第二加热炉(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加热炉(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动力装置。
  14. 双燃料联合循环动力装置，主要由汽轮机、升压泵、高温热交换器、冷凝器、压缩机、膨胀机、加热炉、第二加热炉、热源回热器和第二热源回热器所组成；外部有低品位燃料与加热炉(7)连通，外部还有空气通道经热源回热器(9)与加热炉(7)连通，加热炉(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加热炉(8)连通，外部还有空气通道经第二热源回热器(10)与第二加热炉(8)连通， 第二加热炉(8)还有燃气通道经第二热源回热器(10)与外部连通；外部有工作介质通道与压缩机(5)连通，压缩机(5)还有工作介质通道经加热炉(7)和第二加热炉(8)与膨胀机(6)连通，膨胀机(6)还有工作介质通道经高温热交换器(3)与外部连通；冷凝器(4)有冷凝液管路经升压泵(2)与高温热交换器(3)连通之后高温热交换器(3)再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冷凝器(4)连通；冷凝器(4)还有冷却介质通道与外部连通，膨胀机(6)连接压缩机(5)并传输动力，形成双燃料联合循环动力装置。
PCT/CN2022/000015 2021-01-27 2022-01-27 双燃料联合循环动力装置 WO2022161113A1 (zh)

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