WO2020233133A1 - 联合循环动力装置 - Google Patents

联合循环动力装置 Download PDF

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Publication number
WO2020233133A1
WO2020233133A1 PCT/CN2020/000106 CN2020000106W WO2020233133A1 WO 2020233133 A1 WO2020233133 A1 WO 2020233133A1 CN 2020000106 W CN2020000106 W CN 2020000106W WO 2020233133 A1 WO2020233133 A1 WO 2020233133A1
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WIPO (PCT)
Prior art keywords
expander
heat exchanger
evaporator
temperature heat
high temperature
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PCT/CN2020/000106
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English (en)
French (fr)
Inventor
李华玉
Original Assignee
Li Huayu
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Publication date
Application filed by Li Huayu filed Critical Li Huayu
Publication of WO2020233133A1 publication Critical patent/WO2020233133A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B21/00—Combinations of two or more machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01B23/08—Adaptations for driving, or combinations with, pumps
    • 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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, 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
    • 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
    • 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
    • F01K7/02—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 the engines being of multiple-expansion type
    • 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
    • F01K7/32—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 the engines using steam of critical or overcritical pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Definitions

  • the invention belongs to the field of energy and power technology.
  • the heat source is high temperature and variable temperature heat source; when the Rankine cycle is used as the theoretical basis, water vapor is used as the circulating working fluid to achieve thermal variable work, due to the temperature and pressure resistance of the material And safety restrictions, no matter what parameters are used, there is a large temperature difference between the circulating working fluid and the heat source, and the irreversible loss is large, resulting in low thermal efficiency, which also means that the potential for improving thermal efficiency is great.
  • the present invention proposes a combined cycle steam power device that has high thermal efficiency, strong safety, adapts to high-temperature heat sources or variable-temperature heat sources, and can handle various fuels. .
  • the main purpose of the present invention is to provide a combined cycle power plant.
  • the specific content of the invention is described as follows:
  • Combined cycle power plant mainly composed of expander, second expander, compressor, circulating pump, high temperature heat exchanger, second high temperature heat exchanger, condenser and evaporator;
  • the condenser has a condensate pipeline
  • the evaporator has a steam passage to communicate with the second expander.
  • the second expander also has a steam passage that communicates with the high temperature heat exchanger through the second high temperature heat exchanger.
  • the compressor has a steam passage and high temperature.
  • the heat exchanger is connected, the high temperature heat exchanger also has a steam channel connected with the expander, the expander has a low pressure steam channel connected with the evaporator, and the evaporator has a low pressure steam channel connected with the second high temperature heat exchanger.
  • the second high temperature heat The exchanger also has a low-pressure steam channel connected to the compressor and the condenser respectively;
  • the high-temperature heat exchanger also has a heat source medium channel connected to the outside, the second high-temperature heat exchanger or a heat source medium channel communicates with the outside, and the condenser has cooling
  • the medium channel is connected to the outside, and the evaporator or the heat source medium channel is connected to the outside.
  • the expander is connected to the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected to the compressor and the circulating pump and transmits power.
  • Combined cycle power plant mainly composed of expander, second expander, compressor, circulating pump, high temperature heat exchanger, second high temperature heat exchanger, condenser, evaporator and third expander; condenser After the condensate pipeline is connected to the evaporator through the circulating pump, the evaporator has a steam passage to communicate with the second expander, and the second expander also has a steam passage that communicates with the high temperature heat exchanger through the second high temperature heat exchanger.
  • the compressor There is a steam channel connected with the high temperature heat exchanger, the high temperature heat exchanger has a steam channel connected with the expander, the expander has a low pressure steam channel connected with the evaporator, and the evaporator has a low pressure steam channel connected with the second high temperature heat exchanger
  • the second high-temperature heat exchanger also has a low-pressure steam channel directly connected with the compressor and connected with the condenser through the third expander;
  • the high-temperature heat exchanger also has a heat source medium channel connected with the outside, and the second high-temperature heat exchanger or
  • the heat source medium channel is connected to the outside, the condenser and the cooling medium channel are connected to the outside, the evaporator or the heat source medium channel is connected to the outside, and the expander is connected to the compressor and transmits power to form a combined cycle power unit; among them, or expansion
  • the machine connects the compressor and the circulating pump and transmits power.
  • Combined cycle power plant mainly composed of expander, second expander, compressor, circulating pump, high temperature heat exchanger, second high temperature heat exchanger, condenser, evaporator and high temperature regenerator; condenser After the condensate pipeline is connected to the evaporator through the circulating pump, the evaporator has a steam channel to communicate with the second expander, and the second expander also has a steam channel to exchange heat with high temperature through the second high temperature heat exchanger and high temperature regenerator
  • the compressor has a steam passage that communicates with the high-temperature heat exchanger through the high-temperature regenerator, the high-temperature heat exchanger also has a steam passage that communicates with the expander, and the expander has a low-pressure steam passage that communicates with the evaporator through the high-temperature regenerator.
  • the evaporator also has a low-pressure steam passage communicating with the second high-temperature heat exchanger, the second high-temperature heat exchanger also has a low-pressure steam passage communicating with the compressor and the condenser respectively; the high-temperature heat exchanger also has a heat source medium passage communicating with the outside.
  • the high-temperature heat exchanger or the heat source medium channel communicates with the outside, the condenser and the cooling medium channel communicate with the outside, the evaporator or the heat source medium channel communicates with the outside, the expander connects the compressor and transmits power to form a combined cycle Power plant; among them, or expander connects compressor and circulating pump and transmits power.
  • Combined cycle power plant mainly composed of expander, second expander, compressor, circulating pump, high temperature heat exchanger, second high temperature heat exchanger, condenser, evaporator, third expander and high temperature regenerator
  • the condenser has a condensate pipeline connected to the evaporator through a circulating pump, and then the evaporator has a steam passage connected to the second expander, and the second expander also has a steam passage through the second high temperature heat exchanger and high temperature heat recovery
  • the compressor is connected with the high-temperature heat exchanger.
  • the compressor has a steam passage that communicates with the high-temperature heat exchanger through the high-temperature regenerator.
  • the high-temperature heat exchanger also has a steam passage that communicates with the expander.
  • the expander also has a low-pressure steam passage through the high-temperature regenerator.
  • the evaporator In communication with the evaporator, the evaporator has a low-pressure steam channel connected with the second high-temperature heat exchanger, and the second high-temperature heat exchanger also has a low-pressure steam channel directly connected with the compressor and connected with the condenser via the third expander;
  • the heat exchanger also has a heat source medium channel communicating with the outside, the second high temperature heat exchanger or a heat source medium channel communicating with the outside, the condenser also has a cooling medium channel communicating with the outside, and the evaporator or a heat source medium channel communicating with the outside ,
  • the expander is connected to the compressor and transmits power to form a combined cycle power device; among them, the expander is connected to the compressor and the circulating pump and transmits power.
  • the combined cycle power plant is to add a low-temperature regenerator and a second circulating pump to any one of the combined cycle power plants described in items 1-4, and connect the condenser with the condensate pipeline through the circulating pump and
  • the communication of the evaporator is adjusted so that the condenser has a condensate pipeline connected to the low-temperature regenerator via a circulating pump, the compressor adds an intermediate extraction channel to communicate with the low-temperature regenerator, and the low-temperature regenerator has a condensate pipeline that passes through the second cycle.
  • the pump is connected with the evaporator to form a combined cycle power plant.
  • Combined cycle power plant mainly composed of expander, second expander, compressor, circulating pump, high temperature heat exchanger, second high temperature heat exchanger, condenser, evaporator, third expander, second circulating pump And the second evaporator;
  • the condenser has a condensate pipeline connected with the evaporator through a circulating pump
  • the expander has a low-pressure steam channel connected with the evaporator through the second evaporator and the second high temperature heat exchanger
  • the evaporator has The low-pressure steam passage is directly connected to the compressor and the condenser via the third expander.
  • the compressor also has a steam passage that communicates with the high-temperature heat exchanger.
  • the condenser and the condensate pipeline are connected to the second evaporation via the second circulating pump.
  • the second evaporator After the evaporator is connected, the second evaporator has a steam passage to communicate with the second expander.
  • the second expander also has a steam passage that communicates with the high temperature heat exchanger through the second high temperature heat exchanger.
  • the high temperature heat exchanger also has a steam passage and expansion
  • the high temperature heat exchanger also has a heat source medium channel connected to the outside, the second high temperature heat exchanger or a heat source medium channel communicates with the outside, the condenser has a cooling medium channel connected with the outside, and the evaporator or heat source medium The channel is connected to the outside, the second evaporator or the heat source medium channel is connected to the outside, the expander is connected to the compressor and transmits power to form a combined cycle power plant; among them, or the expander is connected to the compressor, the circulating pump and the second circulating pump And transmit power.
  • Combined cycle power plant mainly composed of expander, second expander, compressor, circulating pump, high temperature heat exchanger, second high temperature heat exchanger, condenser, evaporator, third expander, second circulating pump , The second evaporator and preheater; the condenser has a condensate pipeline connected with the evaporator through a circulating pump, and the expander has a low-pressure steam channel through the second evaporator, the second high temperature heat exchanger and the preheater The evaporator is connected. The evaporator and the low-pressure steam passage are respectively directly connected with the compressor and connected with the condenser through the third expander.
  • the compressor also has the steam passage connected with the high-temperature heat exchanger, and the condenser has a condensate pipeline through After the second circulating pump and the preheater are connected to the second evaporator, the second evaporator has a steam passage to communicate with the second expander, and the second expander also has a steam passage through the second high temperature heat exchanger and the high temperature heat exchanger
  • the high temperature heat exchanger also has a steam channel connected to the expander;
  • the high temperature heat exchanger also has a heat source medium channel connected to the outside, the second high temperature heat exchanger or a heat source medium channel communicates with the outside, and the condenser also has a cooling medium
  • the passage communicates with the outside, the evaporator or the heat source medium passage communicates with the outside, the second evaporator or the heat source medium passage communicates with the outside, and the expander connects the compressor and transmits power to form a combined cycle power plant; among them, or expand
  • the machine connects the compressor, the
  • Combined cycle power plant mainly composed of expander, second expander, compressor, circulating pump, high temperature heat exchanger, second high temperature heat exchanger, condenser, evaporator, third expander, high temperature regenerator ,
  • the condenser has a condensate pipeline connected with the evaporator through the circulating pump, and the expander has a low-pressure steam passage through the high temperature regenerator, the second evaporator and the second high temperature heat exchange
  • the evaporator is connected with the evaporator.
  • the evaporator has a low-pressure steam channel directly connected with the compressor and connected with the condenser via the third expander.
  • the compressor has a steam channel connected with the high-temperature heat exchanger via the high-temperature regenerator.
  • the condenser There is also a condensate pipeline connected to the second evaporator through the second circulating pump. After the second evaporator has a steam passage to communicate with the second expander, the second expander also has a steam passage through the second high temperature heat exchanger and high temperature
  • the regenerator is connected with the high-temperature heat exchanger, the high-temperature heat exchanger also has a steam channel connected with the expander; the high-temperature heat exchanger also has a heat source medium channel connected to the outside, and the second high temperature heat exchanger or a heat source medium channel is connected to the outside
  • the condenser also has a cooling medium channel to communicate with the outside, the evaporator or a heat source medium channel communicates with the outside, the second evaporator or a heat source medium channel communicates with the outside, and the expander connects to the compressor and transmits power to form a joint Circul
  • the combined cycle power plant is to add a low-temperature regenerator and a third circulating pump to any of the combined cycle power plants described in items 6-8, and pass the condensate pipeline of the condenser through the second cycle
  • the connection between the pump and the second evaporator is adjusted so that the condenser has a condensate pipeline connected to the low-temperature regenerator via the second circulating pump, and the compressor is provided with an intermediate extraction channel to communicate with the low-temperature regenerator, and the low-temperature regenerator has condensate
  • the pipeline communicates with the second evaporator through the third circulating pump to form a combined cycle power plant.
  • Figure 1/9 is the first principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 2/9 is the second principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 3/9 is the third principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 4/9 is the fourth principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 5/9 is the fifth principle thermal system diagram of the combined cycle power plant according to the present invention.
  • Figure 6/9 is the sixth principle thermal system diagram of the combined cycle power plant according to the present invention.
  • Figure 7/9 is the seventh principle thermal system diagram of the combined cycle power plant according to the present invention.
  • Figure 8/9 is the eighth principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 9/9 is the ninth principle thermal system diagram of the combined cycle power plant according to the present invention.
  • the condenser 7 has a condensate pipe
  • the evaporator 8 has a steam passage to communicate with the second expander 2
  • the second expander 2 also has a steam passage to communicate with the high temperature heat exchanger 5 through the second high temperature heat exchanger 6
  • Compressor 3 has a steam channel connected with high temperature heat exchanger 5
  • high temperature heat exchanger 5 has a steam channel connected with expander 1
  • expander 1 has a low pressure steam channel connected with evaporator 8
  • evaporator 8 has a low pressure
  • the steam channel is connected to the second high temperature heat exchanger 6, and the second high temperature heat exchanger 6 also has a low pressure steam channel connected to the compressor 3 and the condenser 7, respectively;
  • the high temperature heat exchanger 5
  • the condensate of the condenser 7 is boosted by the circulating pump 4 and enters the evaporator 8, absorbs heat to increase temperature, vaporizes and overheats, flows through the second expander 2 to reduce pressure and performs work, and flows through the second high temperature heat exchange
  • the device 6 absorbs heat and rises, and then enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature.
  • the steam discharged from the compressor 3 enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature; the steam discharged from the high-temperature heat exchanger 5 flows through the expander 1 to perform work ,
  • the low-pressure steam discharged from the expander 1 flows through the evaporator 8 and the second high-temperature heat exchanger 6 to gradually release heat and cool down, and then is divided into two paths-the first path enters the compressor 3 to increase the pressure, and the second path enters the condenser 7 release heat and condense;
  • the heat source medium provides driving heat load through the high temperature heat exchanger 5 and the evaporator 8, the cooling medium takes away the low temperature heat load through the condenser 7,
  • the expander 1 provides power to the compressor 3, the expander 1 and the second
  • the second expander 2 provides power to the outside to form a combined cycle power plant.
  • the evaporator 8 After the condensate pipeline is connected to the evaporator 8 through the circulating pump 4, the evaporator 8 has a steam passage to communicate with the second expander 2, and the second expander 2 also has a steam passage through the second high temperature heat exchanger 6
  • the heat exchanger 5 is connected, the compressor 3 has a steam channel connected with the high temperature heat exchanger 5, the high temperature heat exchanger 5 has a steam channel connected with the expander 1, and the expander 1 has a low pressure steam channel connected with the evaporator 8.
  • the device 8 also has a low-pressure steam passage that communicates with the second high-temperature heat exchanger 6, and the second high-temperature heat exchanger 6 has a low-pressure steam passage that directly communicates with the compressor 3 and communicates with the condenser 7 through the third expander 9;
  • the heat exchanger 5 also has a heat source medium channel to communicate with the outside
  • the condenser 7 also has a cooling medium channel to communicate with the outside
  • the expander 1 is connected to the compressor 3 and transmits power.
  • the condensate of the condenser 7 is boosted by the circulating pump 4 and enters the evaporator 8, absorbs heat to increase temperature, vaporizes and overheats, flows through the second expander 2 to reduce pressure and performs work, and flows through the second high temperature heat exchange
  • the device 6 absorbs heat and rises, and then enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature.
  • the steam discharged from the compressor 3 enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature; the steam discharged from the high-temperature heat exchanger 5 flows through the expander 1 to perform work ,
  • the low-pressure steam discharged from the expander 1 flows through the evaporator 8 and the second high-temperature heat exchanger 6 to gradually release heat and cool down, and then is divided into two paths—the first path enters the compressor 3 to increase the pressure and increase the pressure, and the second path flows through the second path.
  • the three expander 9 After the three expander 9 depressurizes, it enters the condenser 7 to release heat and condense; the heat source medium passes through the high temperature heat exchanger 5 to provide driving heat load, the cooling medium passes through the condenser 7 to take away the low temperature heat load, and the expander 1 transfers to the compressor 3. To provide power, the expander 1, the second expander 2 and the third expander 9 provide power to the outside to form a combined cycle power plant.
  • the evaporator 8 After the condensate pipeline is connected to the evaporator 8 through the circulating pump 4, the evaporator 8 has a steam passage to communicate with the second expander 2, and the second expander 2 also has a steam passage through the second high temperature heat exchanger 6 and high temperature
  • the regenerator 10 is connected to the high-temperature heat exchanger 5, the compressor 3 has a steam passage that communicates with the high-temperature heat exchanger 5 through the high-temperature regenerator 10, and the high-temperature heat exchanger 5 also has a steam passage that communicates with the expander 1, and the expander 1
  • the condensate of the condenser 7 is boosted by the circulating pump 4 and enters the evaporator 8, absorbs heat to increase temperature, vaporizes and overheats, flows through the second expander 2 to reduce pressure and performs work, and flows through the second high temperature heat exchange Heater 6 and high temperature regenerator 10 gradually absorb heat and increase temperature, and then enter the high temperature heat exchanger 5 to absorb heat and increase heat.
  • the steam discharged from compressor 3 flows through the high temperature regenerator 10 to absorb heat and increase temperature, and then enters the high temperature heat exchanger 5 to absorb heat.
  • the steam discharged from the high-temperature heat exchanger 5 flows through the expander 1 to reduce pressure, and the low-pressure steam discharged from the expander 1 flows through the high-temperature regenerator 10, the evaporator 8 and the second high-temperature heat exchanger 6 to gradually release heat And cool down, and then divided into two ways-the first way enters the compressor 3 to increase the pressure, the second way enters the condenser 7 to release heat and condense;
  • the heat source medium provides driving heat load through the high temperature heat exchanger 5 and the evaporator 8, cooling
  • the medium takes away the low-temperature heat load through the condenser 7, the expander 1 provides power to the compressor 3, and the expander 1 and the second expander 2 provide power to the outside to form a combined cycle power plant.
  • the condenser 7 has a condensate pipeline connected with the evaporator 8 through the circulating pump 4, and then the evaporator 8 has a steam passage connected with the second expander 2, and the second expander 2 also has a steam passage through the second high temperature heat
  • the exchanger 6 and the high-temperature regenerator 10 are in communication with the high-temperature heat exchanger 5.
  • the compressor 3 has a steam passage that communicates with the high-temperature heat exchanger 5 through the high-temperature regenerator 10, and the high-temperature heat exchanger 5 also has a steam passage and the expander 1
  • the expander 1 has a low-pressure steam channel connected to the evaporator 8 through the high-temperature regenerator 10, and the evaporator 8 has a low-pressure steam channel connected to the second high-temperature heat exchanger 6, and the second high-temperature heat exchanger 6 has a low pressure
  • the steam channels are directly connected to the compressor 3 and connected to the condenser 7 through the third expander 9; the high temperature heat exchanger 5 also has a heat source medium channel that communicates with the outside, and the condenser 7 has a cooling medium channel that communicates with the outside. 1 Connect compressor 3 and transmit power.
  • the condensate of the condenser 7 is boosted by the circulating pump 4 and enters the evaporator 8, absorbs heat to increase temperature, vaporizes and overheats, flows through the second expander 2 to reduce pressure and performs work, and flows through the second high temperature heat exchange Heater 6 and high-temperature regenerator 10 gradually absorb heat and increase temperature, and then enter the high-temperature heat exchanger 5 to absorb heat and increase heat; the steam discharged from compressor 3 flows through the high-temperature regenerator 10 to absorb heat and increase temperature, and then enters the high-temperature heat exchanger 5 to absorb heat.
  • the steam discharged from the high-temperature heat exchanger 5 flows through the expander 1 to reduce pressure, and the low-pressure steam discharged from the expander 1 flows through the high-temperature regenerator 10, the evaporator 8 and the second high-temperature heat exchanger 6 to gradually release heat
  • the first path enters the compressor 3 to increase the pressure
  • the second path flows through the third expander 9 to reduce pressure and then enters the condenser 7 to release heat and condense
  • the heat source medium passes through high temperature heat exchange
  • the condenser 5 provides the driving heat load
  • the cooling medium takes away the low temperature heat load through the condenser 7
  • the expander 1 provides power to the compressor 3
  • the expander 1, the second expander 2 and the third expander 9 provide power to the outside to form Combined cycle power plant.
  • the condensate of the condenser 7 is boosted by the circulating pump 4 into the low-temperature regenerator 11, mixed with the extraction steam from the compressor 3 to absorb heat and increase the temperature, and the extraction steam is mixed with the condensate to release heat and condense ;
  • the condensate of the low-temperature regenerator 11 is boosted by the second circulating pump 12 into the evaporator 8, absorbs heat to increase temperature, vaporizes and overheats, flows through the second expander 2 to perform work, and flows through the second high-temperature heat exchanger 6 absorbs heat and rises, and then enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature.
  • the steam discharged from the compressor 3 enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature; the steam discharged from the high-temperature heat exchanger 5 flows through the expander 1 to reduce pressure and perform work.
  • the low-pressure steam discharged from the expander 1 flows through the evaporator 8 and the second high-temperature heat exchanger 6 to gradually release heat and cool down, and then is divided into two paths-the first path enters the compressor 3, and the second path flows through the third expander 9 After the pressure is reduced, it enters the condenser 7 to release heat and condenses; the low-pressure steam that enters the compressor 3 is increased in pressure to a certain degree and then divided into two paths—the first path enters the low-temperature regenerator 11 through the middle extraction steam channel.
  • the second path continues to increase pressure; the heat source medium provides driving heat load through the high temperature heat exchanger 5, the cooling medium takes away the low temperature heat load through the condenser 7, the expander 1 provides power to the compressor 3, the expander 1, the second expander 2 and the third expander 9 provide power to the outside to form a combined cycle power plant.
  • the condenser 7 has a condensate pipeline connected to the evaporator 8 through the circulating pump 4, and the expander 1 has a low pressure steam channel through the second evaporator 13 and the second high temperature heat exchanger 6 and the evaporator 8 is connected, the evaporator 8 also has a low-pressure steam passage directly connected with the compressor 3 and connected with the condenser 7 through the third expander 9, the compressor 3 also has a steam passage connected with the high-temperature heat exchanger 5, the condenser 7 also After the condensate pipeline is connected to the second evaporator 13 through the second circulating pump 12, the second evaporator 13 has a steam passage to communicate with the second expander 2, and the second expander 2 also has a steam passage through the second
  • the first condensate of the condenser 7 is boosted by the circulating pump 4 into the evaporator 8, and mixed with the low-pressure steam from the second high-temperature heat exchanger 6, absorbs heat and heats up and vaporizes into saturated or superheated steam After that, it is divided into two paths—the first path enters the compressor 3 to increase the pressure and then enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature, and the second path flows through the third expander 9 to perform pressure reduction and then enters the condenser 7 to release heat and Condensation; the second condensate of the condenser 7 is boosted by the second circulating pump 12 into the second evaporator 13, heats up, vaporizes and overheats, flows through the second expander 2 to perform work, and flows through the second The high-temperature heat exchanger 6 absorbs heat and increases temperature, and then enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature.
  • the steam discharged from the high-temperature heat exchanger 5 flows through the expander 1 to reduce pressure; the low-pressure steam discharged from the expander 1 flows through the second evaporation
  • the heat exchanger 13 and the second high temperature heat exchanger 6 gradually release heat and cool down, and then enter the evaporator 8 to release heat and cool down; the heat source medium passes through the high temperature heat exchanger 5 and the second evaporator 13 to provide driving heat load, and the cooling medium passes through the condenser 7.
  • the expander 1 provides power to the compressor 3, and the expander 1, the second expander 2 and the third expander 9 provide power to the outside to form a combined cycle power plant.
  • the condenser 7 has a condensate pipeline connected to the evaporator 8 through the circulating pump 4, and
  • the expander 1 has a low-pressure steam channel through the second evaporator 13, the second high temperature heat exchanger 6 and the preheater 14 are in communication with the evaporator 8.
  • the evaporator 8 has a low-pressure steam channel directly connected with the compressor 3 and connected with the condenser 7 through the third expander 9 respectively.
  • the compressor 3 has a steam channel and high temperature heat.
  • the exchanger 5 is connected, the condenser 7 and the condensate pipeline are connected to the second evaporator 13 through the second circulating pump 12 and the preheater 14 after the second evaporator 13 has a steam passage to communicate with the second expander 2,
  • the second expander 2 also has a steam passage that communicates with the high-temperature heat exchanger 5 through the second high-temperature heat exchanger 6, and the high-temperature heat exchanger 5 also has a steam passage that communicates with the expander 1;
  • the high-temperature heat exchanger 5 also has a heat source medium passage Connected to the outside, the condenser 7 also has a cooling medium channel to communicate with the outside, the second evaporator 13 also has a heat source medium channel to communicate with the outside, and the expander 1 is connected to the compressor 3 and transmits power.
  • the first condensate of the condenser 7 is boosted by the circulating pump 4 into the evaporator 8, mixed with the low-pressure steam from the preheater 14, absorbing heat and heating up and vaporizing into saturated or superheated steam, and then divided into Two paths-the first path enters the compressor 3 to increase the pressure and then enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature, and the second path flows through the third expander 9 to reduce pressure and then enter the condenser 7 to release heat and condense;
  • the second condensate of the device 7 flows through the second circulating pump 12 to boost pressure, flows through the preheater 14 to absorb heat and rises, flows through the second evaporator 13 to absorb heat, vaporize and superheat, and flows through the second expander 2
  • the pressure is reduced to work, and it flows through the second high-temperature heat exchanger 6 to absorb heat and increase heat, and then enters the high-temperature heat exchanger 5 to absorb heat and increase the temperature; the steam discharge
  • the discharged low-pressure steam flows through the second evaporator 13, the second high temperature heat exchanger 6 and the preheater 14 to gradually release heat and cool down, and then enter the evaporator 8 to release heat and cool down; the heat source medium passes through the high temperature heat exchanger 5 and the second
  • the evaporator 13 provides driving heat load, the cooling medium takes away the low temperature heat load through the condenser 7, the expander 1 provides power to the compressor 3, and the expander 1, the second expander 2 and the third expander 9 provide power to the outside.
  • the condenser 7 has a condensate pipeline connected to the evaporator 8 through the circulating pump 4, and the expander 1 has a low-pressure steam passage through the high-temperature regenerator 10 and the second evaporator 13
  • the second high temperature heat exchanger 6 is connected to the evaporator 8.
  • the evaporator 8 also has a low-pressure steam channel directly connected to the compressor 3 and connected to the condenser 7 through the third expander 9, and the compressor 3 also has a steam channel through
  • the high-temperature regenerator 10 is connected to the high-temperature heat exchanger 5, the condenser 7 has a condensate pipe connected to the second evaporator 13 through the second circulating pump 12, and the second evaporator 13 has a steam passage and a second expander.
  • the second expander 2 also has a steam channel connected to the high temperature heat exchanger 5 through the second high temperature heat exchanger 6 and the high temperature regenerator 10, and the high temperature heat exchanger 5 also has a steam channel connected to the expander 1;
  • the heat exchanger 5 also has a heat source medium channel communicating with the outside
  • the condenser 7 has a cooling medium channel communicating with the outside
  • the expander 1 is connected to the compressor 3 and transmits power .
  • the first condensate of the condenser 7 is boosted by the circulating pump 4 into the evaporator 8, and mixed with the low-pressure steam from the second high-temperature heat exchanger 6, absorbs heat and heats up and vaporizes into saturated or superheated steam After that, it is divided into two paths-the first path enters the compressor 3 to increase the pressure, the second path flows through the third expander 9 to reduce pressure and then enters the condenser 7 to release heat and condense; the second path of the condenser 7 condenses
  • the liquid is boosted by the second circulating pump 12 and enters the second evaporator 13, absorbs heat to increase temperature, vaporizes and overheats, flows through the second expander 2 to reduce pressure and performs work, and flows through the second high temperature heat exchanger 6 and the high temperature regenerator 10 gradually absorbs heat and increases temperature, and then enters the high-temperature heat exchanger 5 to absorb heat and increase heat; the steam discharged from the compressor 3 flows through the high-temperature regenerator
  • the low pressure steam discharged from the expander 1 flows through the high temperature regenerator 10, the second evaporator 13 and the second high temperature heat exchanger 6 to gradually release heat and cool down, and then enter The evaporator 8 releases heat and cools; the heat source medium provides driving heat load through the high temperature heat exchanger 5 and the second evaporator 13, the cooling medium takes away the low temperature heat load through the condenser 7, the expander 1 provides power to the compressor 3, and the expander 1.
  • the second expander 2 and the third expander 9 provide power to the outside to form a combined cycle power plant.
  • the first condensate of the condenser 7 is boosted by the circulating pump 4 into the evaporator 8, and mixed with the low-pressure steam from the second high-temperature heat exchanger 6, absorbs heat and heats up and vaporizes into saturated or superheated steam After that, it is divided into two paths-the first path enters the compressor 3 to increase the pressure, the second path flows through the third expander 9 to reduce pressure and then enters the condenser 7 to release heat and condense; the second path of the condenser 7 condenses
  • the liquid is boosted by the second circulation pump 12 into the low-temperature regenerator 11, mixed with the extraction steam from the compressor 3, absorbs heat and rises up, the extraction steam is mixed with the condensate and then releases heat and condenses;
  • the condensate of the low-temperature regenerator 11 After being boosted by the third circulating pump 15, it enters the second evaporator 13, heats up, vaporizes and overheats, flows through the second expander 2 to reduce pressure
  • the low-pressure steam entering the high-temperature heat exchanger 5 absorbs heat and raises the temperature; the low-pressure steam entering the compressor 3 is increased to a certain degree and then divided into two paths-the first path enters the low-temperature regenerator 11 through the middle extraction steam channel to release heat and condense, and the second The second path continues to increase the pressure and increase the temperature, and then enter the high-temperature heat exchanger 5 to absorb heat and increase the temperature; the steam discharged from the high-temperature heat exchanger 5 flows through the expander 1 to perform work, and the low-pressure steam discharged from the expander 1 flows through the second evaporator 13 And the second high temperature heat exchanger 6 gradually release heat and cool down, and then enter the evaporator 8 to release heat and cool down; the heat source medium provides driving heat load through the high temperature heat exchanger 5 and the second evaporator 13, and the cooling medium is taken away through the condenser 7. Under low temperature heat load, the expander 1 provides power to the compressor 3, and the expander 1, the second expander 2 and the
  • the circulating working fluid completes high temperature heat absorption under low pressure, and the temperature difference loss between the circulating working fluid and the high temperature heat source is small, which is beneficial to improve the thermal efficiency of the system and the safety of the device.
  • the circulating working fluid mainly relies on the condensation phase change process to realize low-temperature heat release, and the temperature difference loss between the circulating working fluid and the environment is controllable, which is beneficial to improve thermal efficiency.
  • the equipment is shared to increase the heat absorption process of the lower cycle-Rankine cycle, and improve thermal efficiency.

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Abstract

联合循环动力装置，冷凝器（7）有冷凝液管路经循环泵（4）与蒸发器（8）连通之后蒸发器（8）再有蒸汽通道与第二膨胀机（2）连通，第二膨胀机（2）还有蒸汽通道经第二高温热交换器（6）与高温热交换器（5）连通，压缩机（3）有蒸汽通道与高温热交换器（5）连通，高温热交换器（5）还有蒸汽通道与膨胀机（1）连通，膨胀机（1）还有低压蒸汽通道与蒸发器（8）连通之后蒸发器（8）再有低压蒸汽通道分别与压缩机（3）和冷凝器（7）连通；膨胀机（1）和第二膨胀机（2）连接压缩机（3）并传输动力，形成联合循环动力装置。

Description

联合循环动力装置 技术领域：
本发明属于能源与动力技术领域。
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，利用热能转换为机械能是获得和提供动力的重要方式。一般情况下，热源的温度随着热的释放而降低，热源是变温的。在以化石燃料为源头能源时，热源同时具有高温和变温的双重特点，这使得基于单一热力循环的动力装置难以将更多的热能转化为机械能；对其中的优质燃料来说，可以采用传统的燃气-蒸汽联合循环得到高的热效率，但仍然存在造价高、投资大、热效率有待提升等问题。
以外燃式蒸汽动力装置为例，其热源属于高温且为变温热源；当以朗肯循环为理论基础，采用水蒸气为循环工质实现热变功时，由于受到材料耐温耐压性能和安全性方面的限制，无论采用何种参数运行，循环工质与热源之间都存在较大的温差损失，不可逆损失大，导致热效率较低，这也意味着提高热效率的潜力甚大。
人们需要简单、主动、安全、高效地利用热能来获得动力，为此，本发明提出了热效率高、安全性强、适应高温热源或变温热源和能够应对各种燃料的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联合循环动力装置，具体发明内容分项阐述如下：
1.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器和蒸发器所组成；冷凝器有冷凝液管路经循环泵与蒸发器连通之后蒸发器再有蒸汽通道与第二膨胀机连通，第二膨胀机还有蒸汽通道经第二高温热交换器与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与膨胀机连通，膨胀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与第二高温热交换器连通，第二高温热交换器还有低压蒸汽通道分别与压缩机和冷凝器连通；高温热交换器还有热源介质通道与外部连通，第二高温热交换器或还有热源介质通道与外部连通，冷凝器还有冷却介质通道与外部连通，蒸发器或还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成联合循环动力装置；其中，或膨胀机连接压缩机和循环泵并传输动力。
2.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器和第三膨胀机所组成；冷凝器有冷凝液管路经循环泵与蒸发器连通之后蒸发器再有蒸汽通道与第二膨胀机连通，第二膨胀机还有蒸汽通道经第二高温热交换器与高温热交换器连通，压缩机有蒸汽通道与高温热交换器连通，高温热交换器还有蒸汽通道与膨胀机连通，膨胀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与第二高温热交换器连通，第二高温热交换器还有低压蒸汽通道分别直接与压缩机连通和经第三膨胀机与冷凝器连通；高温热交换器还有热源介质通道与外部连通，第二高温热交换器或还有热源介质通道与外部连通，冷凝器还有冷却介质通道与外部连通， 蒸发器或还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成联合循环动力装置；其中，或膨胀机连接压缩机和循环泵并传输动力。
3.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器和高温回热器所组成；冷凝器有冷凝液管路经循环泵与蒸发器连通之后蒸发器再有蒸汽通道与第二膨胀机连通，第二膨胀机还有蒸汽通道经第二高温热交换器和高温回热器与高温热交换器连通，压缩机有蒸汽通道经高温回热器与高温热交换器连通，高温热交换器还有蒸汽通道与膨胀机连通，膨胀机还有低压蒸汽通道经高温回热器与蒸发器连通，蒸发器还有低压蒸汽通道与第二高温热交换器连通，第二高温热交换器还有低压蒸汽通道分别与压缩机和冷凝器连通；高温热交换器还有热源介质通道与外部连通，第二高温热交换器或还有热源介质通道与外部连通，冷凝器还有冷却介质通道与外部连通，蒸发器或还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成联合循环动力装置；其中，或膨胀机连接压缩机和循环泵并传输动力。
4.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机和高温回热器所组成；冷凝器有冷凝液管路经循环泵与蒸发器连通之后蒸发器再有蒸汽通道与第二膨胀机连通，第二膨胀机还有蒸汽通道经第二高温热交换器和高温回热器与高温热交换器连通，压缩机有蒸汽通道经高温回热器与高温热交换器连通，高温热交换器还有蒸汽通道与膨胀机连通，膨胀机还有低压蒸汽通道经高温回热器与蒸发器连通，蒸发器还有低压蒸汽通道与第二高温热交换器连通，第二高温热交换器还有低压蒸汽通道分别直接与压缩机连通和经第三膨胀机与冷凝器连通；高温热交换器还有热源介质通道与外部连通，第二高温热交换器或还有热源介质通道与外部连通，冷凝器还有冷却介质通道与外部连通，蒸发器或还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成联合循环动力装置；其中，或膨胀机连接压缩机和循环泵并传输动力。
5.联合循环动力装置，是在第1-4项所述的任一一款联合循环动力装置中，增加低温回热器和第二循环泵，将冷凝器有冷凝液管路经循环泵与蒸发器连通调整为冷凝器有冷凝液管路经循环泵与低温回热器连通，压缩机增设中间抽汽通道与低温回热器连通，低温回热器再有冷凝液管路经第二循环泵与蒸发器连通，形成联合循环动力装置。
6.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、第二循环泵和第二蒸发器所组成；冷凝器有冷凝液管路经循环泵与蒸发器连通，膨胀机有低压蒸汽通道经第二蒸发器和第二高温热交换器与蒸发器连通，蒸发器还有低压蒸汽通道分别直接与压缩机连通和经第三膨胀机与冷凝器连通，压缩机还有蒸汽通道与高温热交换器连通，冷凝器还有冷凝液管路经第二循环泵与第二蒸发器连通之后第二蒸发器再有蒸汽通道与第二膨胀机连通，第二膨胀机还有蒸汽通道经第二高温热交换器与高温热交换器连通，高温热交换器还有蒸汽通道与膨胀机连通；高温热交换器还有热源介质通道与外部连通，第二高温热交换器或还有热源介质通道与外部连通，冷凝器还有冷却介质通道与外部连通，蒸发器或还有热源介质通道与外部连通，第二蒸发器或还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成联合循环动力装置；其中，或膨胀机连接压缩机、循环泵和第二循环泵并传输动力。
7.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、第二循环泵、第二蒸发器和预热器所组成；冷凝器有冷凝液管路经循环泵与蒸发器连通，膨胀机有低压蒸汽通道经第二蒸发器、第二高温热交换器和预热器与蒸发器连通，蒸发器还有低压蒸汽通道分别直接与压缩机连通和经第三膨胀机与冷凝器连通，压缩机还有蒸汽通道与高温热交换器连通，冷凝器还有冷凝液管路经第二循环泵和预热器与第二蒸发器连通之后第二蒸发器再有蒸汽通道与第二膨胀机连通，第二膨胀机还有蒸汽通道经第二高温热交换器与高温热交换器连通，高温热交换器还有蒸汽通道与膨胀机连通；高温热交换器还有热源介质通道与外部连通，第二高温热交换器或还有热源介质通道与外部连通，冷凝器还有冷却介质通道与外部连通，蒸发器或还有热源介质通道与外部连通，第二蒸发器或还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成联合循环动力装置；其中，或膨胀机连接压缩机、循环泵和第二循环泵并传输动力。
8.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、高温回热器、第二循环泵和第二蒸发器所组成；冷凝器有冷凝液管路经循环泵与蒸发器连通，膨胀机有低压蒸汽通道经高温回热器、第二蒸发器和第二高温热交换器与蒸发器连通，蒸发器还有低压蒸汽通道分别直接与压缩机连通和经第三膨胀机与冷凝器连通，压缩机还有蒸汽通道经高温回热器与高温热交换器连通，冷凝器还有冷凝液管路经第二循环泵与第二蒸发器连通之后第二蒸发器再有蒸汽通道与第二膨胀机连通，第二膨胀机还有蒸汽通道经第二高温热交换器和高温回热器与高温热交换器连通，高温热交换器还有蒸汽通道与膨胀机连通；高温热交换器还有热源介质通道与外部连通，第二高温热交换器或还有热源介质通道与外部连通，冷凝器还有冷却介质通道与外部连通，蒸发器或还有热源介质通道与外部连通，第二蒸发器或还有热源介质通道与外部连通，膨胀机连接压缩机并传输动力，形成联合循环动力装置；其中，或膨胀机连接压缩机、循环泵和第二循环泵并传输动力。
9.联合循环动力装置，是在第6-8项所述的任一一款联合循环动力装置中，增加低温回热器和第三循环泵，将冷凝器有冷凝液管路经第二循环泵与第二蒸发器连通调整为冷凝器有冷凝液管路经第二循环泵与低温回热器连通，压缩机增设中间抽汽通道与低温回热器连通，低温回热器再有冷凝液管路经第三循环泵与第二蒸发器连通，形成联合循环动力装置。
附图说明：
图1/9是依据本发明所提供的联合循环动力装置第1种原则性热力系统图。
图2/9是依据本发明所提供的联合循环动力装置第2种原则性热力系统图。
图3/9是依据本发明所提供的联合循环动力装置第3种原则性热力系统图。
图4/9是依据本发明所提供的联合循环动力装置第4种原则性热力系统图。
图5/9是依据本发明所提供的联合循环动力装置第5种原则性热力系统图。
图6/9是依据本发明所提供的联合循环动力装置第6种原则性热力系统图。
图7/9是依据本发明所提供的联合循环动力装置第7种原则性热力系统图。
图8/9是依据本发明所提供的联合循环动力装置第8种原则性热力系统图。
图9/9是依据本发明所提供的联合循环动力装置第9种原则性热力系统图。
图中，1-膨胀机，2-第二膨胀机，3-压缩机，4-循环泵，5-高温热交换器，6-第二高温热交换器，7-冷凝器，8-蒸发器(余热锅炉)，9-第三膨胀机，10-高温回热器，11-低温回热器，12-第二循环泵，13-第二蒸发器(第二余热锅炉)，14-预热器，15-第三循环泵。
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1/9所示的联合循环动力装置是这样实现的：
(1)结构上，它主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器和蒸发器所组成；冷凝器7有冷凝液管路经循环泵4与蒸发器8连通之后蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经第二高温热交换器6与高温热交换器5连通，压缩机3有蒸汽通道与高温热交换器5连通，高温热交换器5还有蒸汽通道与膨胀机1连通，膨胀机1还有低压蒸汽通道与蒸发器8连通，蒸发器8还有低压蒸汽通道与第二高温热交换器6连通，第二高温热交换器6还有低压蒸汽通道分别与压缩机3和冷凝器7连通；高温热交换器5还有热源介质通道与外部连通，冷凝器7还有冷却介质通道与外部连通，蒸发器8还有热源介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器7的冷凝液经循环泵4升压进入蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6吸热升温，之后进入高温热交换器5吸热升温，压缩机3排放的蒸汽进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经蒸发器8和第二高温热交换器6逐步放热并降温，之后分成两路——第一路进入压缩机3升压升温，第二路进入冷凝器7放热并冷凝；热源介质通过高温热交换器5和蒸发器8提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1和第二膨胀机2向外部提供动力，形成联合循环动力装置。
图2/9所示的联合循环动力装置是这样实现的：
(1)结构上，它主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器和第三膨胀机所组成；冷凝器7有冷凝液管路经循环泵4与蒸发器8连通之后蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经第二高温热交换器6与高温热交换器5连通，压缩机3有蒸汽通道与高温热交换器5连通，高温热交换器5还有蒸汽通道与膨胀机1连通，膨胀机1还有低压蒸汽通道与蒸发器8连通，蒸发器8还有低压蒸汽通道与第二高温热交换器6连通，第二高温热交换器6还有低压蒸汽通道分别直接与压缩机3连通和经第三膨胀机9与冷凝器7连通；高温热交换器5还有热源介质通道与外部连通，冷凝器7还有冷却介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器7的冷凝液经循环泵4升压进入蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6吸热升温，之后进入高温热交换器5吸热升温，压缩机3排放的蒸汽进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经蒸发器8和第二高温热交换器6 逐步放热并降温，之后分成两路——第一路进入压缩机3升压升温，第二路流经第三膨胀机9降压作功之后进入冷凝器7放热并冷凝；热源介质通过高温热交换器5提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1、第二膨胀机2和第三膨胀机9向外部提供动力，形成联合循环动力装置。
图3/9所示的联合循环动力装置是这样实现的：
(1)结构上，它主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器和高温回热器所组成；冷凝器7有冷凝液管路经循环泵4与蒸发器8连通之后蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经第二高温热交换器6和高温回热器10与高温热交换器5连通，压缩机3有蒸汽通道经高温回热器10与高温热交换器5连通，高温热交换器5还有蒸汽通道与膨胀机1连通，膨胀机1还有低压蒸汽通道经高温回热器10与蒸发器8连通，蒸发器8还有低压蒸汽通道与第二高温热交换器6连通，第二高温热交换器6还有低压蒸汽通道分别与压缩机3和冷凝器7连通；高温热交换器5还有热源介质通道与外部连通，冷凝器7还有冷却介质通道与外部连通，蒸发器8还有热源介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器7的冷凝液经循环泵4升压进入蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6和高温回热器10逐步吸热并升温，之后进入高温热交换器5吸热升温，压缩机3排放的蒸汽流经高温回热器10吸热升温，之后进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经高温回热器10、蒸发器8和第二高温热交换器6逐步放热并降温，之后分成两路——第一路进入压缩机3升压升温，第二路进入冷凝器7放热并冷凝；热源介质通过高温热交换器5和蒸发器8提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1和第二膨胀机2向外部提供动力，形成联合循环动力装置。
图4/9所示的联合循环动力装置是这样实现的：
(1)结构上，它主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机和高温回热器所组成；冷凝器7有冷凝液管路经循环泵4与蒸发器8连通之后蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经第二高温热交换器6和高温回热器10与高温热交换器5连通，压缩机3有蒸汽通道经高温回热器10与高温热交换器5连通，高温热交换器5还有蒸汽通道与膨胀机1连通，膨胀机1还有低压蒸汽通道经高温回热器10与蒸发器8连通，蒸发器8还有低压蒸汽通道与第二高温热交换器6连通，第二高温热交换器6还有低压蒸汽通道分别直接与压缩机3连通和经第三膨胀机9与冷凝器7连通；高温热交换器5还有热源介质通道与外部连通，冷凝器7还有冷却介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器7的冷凝液经循环泵4升压进入蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6和高温回热器10逐步吸热并升温，之后进入高温热交换器5吸热升温；压缩机3排放的蒸汽流经高温回热器10吸热升温，之后进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经高温回热器10、蒸发器8和第二高温热交换器6逐步放热并降 温，之后分成两路——第一路进入压缩机3升压升温，第二路流经第三膨胀机9降压作功之后进入冷凝器7放热并冷凝；热源介质通过高温热交换器5提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1、第二膨胀机2和第三膨胀机9向外部提供动力，形成联合循环动力装置。
图5/9所示的联合循环动力装置是这样实现的：
(1)结构上，在图2/9所示的联合循环动力装置中，增加低温回热器和第二循环泵，将冷凝器7有冷凝液管路经循环泵4与蒸发器8连通调整为冷凝器7有冷凝液管路经循环泵4与低温回热器11连通，压缩机3增设中间抽汽通道与低温回热器11连通，低温回热器11再有冷凝液管路经第二循环泵12与蒸发器8连通。
(2)流程上，冷凝器7的冷凝液经循环泵4升压进入低温回热器11，与来自压缩机3的抽汽混合吸热并升温，抽汽与冷凝液混合之后放热并冷凝；低温回热器11的冷凝液经第二循环泵12升压进入蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6吸热升温，之后进入高温热交换器5吸热升温，压缩机3排放的蒸汽进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经蒸发器8和第二高温热交换器6逐步放热并降温，之后分成两路——第一路进入压缩机3，第二路流经第三膨胀机9降压作功之后进入冷凝器7放热并冷凝；进入压缩机3的低压蒸汽升压升温到一定程度之后又分成两路——第一路经中间抽汽通道进入低温回热器11，第二路继续升压升温；热源介质通过高温热交换器5提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1、第二膨胀机2和第三膨胀机9向外部提供动力，形成联合循环动力装置。
图6/9所示的联合循环动力装置是这样实现的：
(1)结构上，它主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、第二循环泵和第二蒸发器所组成；冷凝器7有冷凝液管路经循环泵4与蒸发器8连通，膨胀机1有低压蒸汽通道经第二蒸发器13和第二高温热交换器6与蒸发器8连通，蒸发器8还有低压蒸汽通道分别直接与压缩机3连通和经第三膨胀机9与冷凝器7连通，压缩机3还有蒸汽通道与高温热交换器5连通，冷凝器7还有冷凝液管路经第二循环泵12与第二蒸发器13连通之后第二蒸发器13再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经第二高温热交换器6与高温热交换器5连通，高温热交换器5还有蒸汽通道与膨胀机1连通；高温热交换器5还有热源介质通道与外部连通，冷凝器7还有冷却介质通道与外部连通，第二蒸发器13还有热源介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器7的第一路冷凝液经循环泵4升压进入蒸发器8，与来自第二高温热交换器6的低压蒸汽混合，吸热升温并汽化成饱和或过热蒸汽，之后分成两路——第一路进入压缩机3升压升温之后进入高温热交换器5吸热升温，第二路流经第三膨胀机9降压作功之后进入冷凝器7放热并冷凝；冷凝器7的第二路冷凝液经第二循环泵12升压进入第二蒸发器13，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6吸热升温，之后进入高温热交换器5吸热升温，高温热交换器5排放的蒸汽流经膨胀机1降压作功；膨胀机1排放的低压蒸汽流经第二蒸发器13和第二高温热交换器6逐步放 热并降温，之后进入蒸发器8放热降温；热源介质通过高温热交换器5和第二蒸发器13提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1、第二膨胀机2和第三膨胀机9向外部提供动力，形成联合循环动力装置。
图7/9所示的联合循环动力装置是这样实现的：
(1)结构上，它主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、第二循环泵、第二蒸发器和预热器所组成；冷凝器7有冷凝液管路经循环泵4与蒸发器8连通，膨胀机1有低压蒸汽通道经第二蒸发器13、第二高温热交换器6和预热器14与蒸发器8连通，蒸发器8还有低压蒸汽通道分别直接与压缩机3连通和经第三膨胀机9与冷凝器7连通，压缩机3还有蒸汽通道与高温热交换器5连通，冷凝器7还有冷凝液管路经第二循环泵12和预热器14与第二蒸发器13连通之后第二蒸发器13再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经第二高温热交换器6与高温热交换器5连通，高温热交换器5还有蒸汽通道与膨胀机1连通；高温热交换器5还有热源介质通道与外部连通，冷凝器7还有冷却介质通道与外部连通，第二蒸发器13还有热源介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器7的第一路冷凝液经循环泵4升压进入蒸发器8，与来自预热器14的低压蒸汽混合，吸热升温并汽化成饱和或过热蒸汽，之后分成两路——第一路进入压缩机3升压升温之后进入高温热交换器5吸热升温，第二路流经第三膨胀机9降压作功之后进入冷凝器7放热并冷凝；冷凝器7的第二路冷凝液流经第二循环泵12升压，流经预热器14吸热升温，流经第二蒸发器13吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6吸热升温，之后进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经第二蒸发器13、第二高温热交换器6和预热器14逐步放热并降温，之后进入蒸发器8放热降温；热源介质通过高温热交换器5和第二蒸发器13提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1、第二膨胀机2和第三膨胀机9向外部提供动力，形成联合循环动力装置。
图8/9所示的联合循环动力装置是这样实现的：
(1)结构上，它主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、高温回热器、第二循环泵和第二蒸发器所组成；冷凝器7有冷凝液管路经循环泵4与蒸发器8连通，膨胀机1有低压蒸汽通道经高温回热器10、第二蒸发器13和第二高温热交换器6与蒸发器8连通，蒸发器8还有低压蒸汽通道分别直接与压缩机3连通和经第三膨胀机9与冷凝器7连通，压缩机3还有蒸汽通道经高温回热器10与高温热交换器5连通，冷凝器7还有冷凝液管路经第二循环泵12与第二蒸发器13连通之后第二蒸发器13再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经第二高温热交换器6和高温回热器10与高温热交换器5连通，高温热交换器5还有蒸汽通道与膨胀机1连通；高温热交换器5还有热源介质通道与外部连通，冷凝器7还有冷却介质通道与外部连通，第二蒸发器13或还有热源介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器7的第一路冷凝液经循环泵4升压进入蒸发器8，与来自第二高温热 交换器6的低压蒸汽混合，吸热升温并汽化成饱和或过热蒸汽，之后分成两路——第一路进入压缩机3升压升温，第二路流经第三膨胀机9降压作功之后进入冷凝器7放热并冷凝；冷凝器7的第二路冷凝液经第二循环泵12升压进入第二蒸发器13，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6和高温回热器10逐步吸热并升温，之后进入高温热交换器5吸热升温；压缩机3排放的蒸汽流经高温回热器10吸热升温，之后进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经高温回热器10、第二蒸发器13和第二高温热交换器6逐步放热并降温，之后进入蒸发器8放热降温；热源介质通过高温热交换器5和第二蒸发器13提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1、第二膨胀机2和第三膨胀机9向外部提供动力，形成联合循环动力装置。
图9/9所示的联合循环动力装置是这样实现的：
(1)结构上，在图6/9所示的联合循环动力装置中，增加低温回热器和第三循环泵，将冷凝器7有冷凝液管路经第二循环泵12与第二蒸发器13连通调整为冷凝器7有冷凝液管路经第二循环泵12与低温回热器11连通，压缩机3增设中间抽汽通道与低温回热器11连通，低温回热器11再有冷凝液管路经第三循环泵15与第二蒸发器13连通。
(2)流程上，冷凝器7的第一路冷凝液经循环泵4升压进入蒸发器8，与来自第二高温热交换器6的低压蒸汽混合，吸热升温并汽化成饱和或过热蒸汽，之后分成两路——第一路进入压缩机3升压升温，第二路流经第三膨胀机9降压作功之后进入冷凝器7放热并冷凝；冷凝器7的第二路冷凝液经第二循环泵12升压进入低温回热器11，与来自压缩机3的抽汽混合吸热并升温，抽汽与冷凝液混合之后放热并冷凝；低温回热器11的冷凝液经第三循环泵15升压之后进入第二蒸发器13，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经第二高温热交换器6吸热升温，之后进入高温热交换器5吸热升温；进入压缩机3的低压蒸汽升压升温到一定程度之后又分成两路——第一路经中间抽汽通道进入低温回热器11放热并冷凝，第二路继续升压升温，之后进入高温热交换器5吸热升温；高温热交换器5排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽流经第二蒸发器13和第二高温热交换器6逐步放热并降温，之后进入蒸发器8放热降温；热源介质通过高温热交换器5和第二蒸发器13提供驱动热负荷，冷却介质通过冷凝器7带走低温热负荷，膨胀机1向压缩机3提供动力，膨胀机1、第二膨胀机2和第三膨胀机9向外部提供动力，形成联合循环动力装置。
本发明技术可以实现的效果——本发明所提出的联合循环动力装置，具有如下效果和优势：
(1)循环工质在低压下完成高温吸热，循环工质与高温热源之间温差损失小，有利于提高系统热效率和装置安全性。
(2)循环工质主要依靠冷凝相变过程实现低温放热，循环工质与环境之间的温差损失可控，有利于提高热效率。
(3)在高温区采取低压高温运行方式，解决传统蒸汽动力装置中热效率、循环介质参数与管材耐压耐温性能之间难以调和的矛盾，从而能够大幅度降低热源与循环介质之间的温差损失，大幅度提高热效率。
(4)设备共用，增大下部循环——朗肯循环的吸热过程，提高热效率。
(5)采用单一工质，降低运行成本，提高热动装置调节的灵活性。
(6)共用高温膨胀机时，减少核心设备数量，有利于降低系统投资和提高热效率。
(7)能够有效应对高温热源和变温热源，应对优质燃料和非优质燃料，适用范围广泛。
(8)在实现高热效率前提下，可选择低压运行，使装置运行的安全性得到较大幅度提高。
(9)能够简单、主动、安全、高效地实现企业装置热回收。
(10)应用于燃气-蒸汽联合循环下端，可有效提升其热效率。
(11)应用于燃煤热力系统时，能够保持传统蒸汽动力循环原有的优势——水蒸气作工质，工作参数范围宽广；根据实际，可选择工作在亚临界、临界、超临界或超超临界状态等。

Claims (9)

  1. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器和蒸发器所组成；冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通之后蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经第二高温热交换器(6)与高温热交换器(5)连通，压缩机(3)有蒸汽通道与高温热交换器(5)连通，高温热交换器(5)还有蒸汽通道与膨胀机(1)连通，膨胀机(1)还有低压蒸汽通道与蒸发器(8)连通，蒸发器(8)还有低压蒸汽通道与第二高温热交换器(6)连通，第二高温热交换器(6)还有低压蒸汽通道分别与压缩机(3)和冷凝器(7)连通；高温热交换器(5)还有热源介质通道与外部连通，第二高温热交换器(6)或还有热源介质通道与外部连通，冷凝器(7)还有冷却介质通道与外部连通，蒸发器(8)或还有热源介质通道与外部连通，膨胀机(1)连接压缩机(3)并传输动力，形成联合循环动力装置；其中，或膨胀机(1)连接压缩机(3)和循环泵(4)并传输动力。
  2. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器和第三膨胀机所组成；冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通之后蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经第二高温热交换器(6)与高温热交换器(5)连通，压缩机(3)有蒸汽通道与高温热交换器(5)连通，高温热交换器(5)还有蒸汽通道与膨胀机(1)连通，膨胀机(1)还有低压蒸汽通道与蒸发器(8)连通，蒸发器(8)还有低压蒸汽通道与第二高温热交换器(6)连通，第二高温热交换器(6)还有低压蒸汽通道分别直接与压缩机(3)连通和经第三膨胀机(9)与冷凝器(7)连通；高温热交换器(5)还有热源介质通道与外部连通，第二高温热交换器(6)或还有热源介质通道与外部连通，冷凝器(7)还有冷却介质通道与外部连通，蒸发器(8)或还有热源介质通道与外部连通，膨胀机(1)连接压缩机(3)并传输动力，形成联合循环动力装置；其中，或膨胀机(1)连接压缩机(3)和循环泵(4)并传输动力。
  3. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器和高温回热器所组成；冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通之后蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经第二高温热交换器(6)和高温回热器(10)与高温热交换器(5)连通，压缩机(3)有蒸汽通道经高温回热器(10)与高温热交换器(5)连通，高温热交换器(5)还有蒸汽通道与膨胀机(1)连通，膨胀机(1)还有低压蒸汽通道经高温回热器(10)与蒸发器(8)连通，蒸发器(8)还有低压蒸汽通道与第二高温热交换器(6)连通，第二高温热交换器(6)还有低压蒸汽通道分别与压缩机(3)和冷凝器(7)连通；高温热交换器(5)还有热源介质通道与外部连通，第二高温热交换器(6)或还有热源介质通道与外部连通，冷凝器(7)还有冷却介质通道与外部连通，蒸发器(8)或还有热源介质通道与外部连通，膨胀机(1)连接压缩机(3)并传输动力，形成联合循环动力装置；其中，或膨胀机(1)连接压缩机(3)和循环泵(4)并传输动力。
  4. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机和高温回热器所组成；冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通之后蒸发器(8)再有蒸汽通道与第二膨胀机(2) 连通，第二膨胀机(2)还有蒸汽通道经第二高温热交换器(6)和高温回热器(10)与高温热交换器(5)连通，压缩机(3)有蒸汽通道经高温回热器(10)与高温热交换器(5)连通，高温热交换器(5)还有蒸汽通道与膨胀机(1)连通，膨胀机(1)还有低压蒸汽通道经高温回热器(10)与蒸发器(8)连通，蒸发器(8)还有低压蒸汽通道与第二高温热交换器(6)连通，第二高温热交换器(6)还有低压蒸汽通道分别直接与压缩机(3)连通和经第三膨胀机(9)与冷凝器(7)连通；高温热交换器(5)还有热源介质通道与外部连通，第二高温热交换器(6)或还有热源介质通道与外部连通，冷凝器(7)还有冷却介质通道与外部连通，蒸发器(8)或还有热源介质通道与外部连通，膨胀机(1)连接压缩机(3)并传输动力，形成联合循环动力装置；其中，或膨胀机(1)连接压缩机(3)和循环泵(4)并传输动力。
  5. 联合循环动力装置，是在权利要求1-4所述的任一一款联合循环动力装置中，增加低温回热器和第二循环泵，将冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通调整为冷凝器(7)有冷凝液管路经循环泵(4)与低温回热器(11)连通，压缩机(3)增设中间抽汽通道与低温回热器(11)连通，低温回热器(11)再有冷凝液管路经第二循环泵(12)与蒸发器(8)连通，形成联合循环动力装置。
  6. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、第二循环泵和第二蒸发器所组成；冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通，膨胀机(1)有低压蒸汽通道经第二蒸发器(13)和第二高温热交换器(6)与蒸发器(8)连通，蒸发器(8)还有低压蒸汽通道分别直接与压缩机(3)连通和经第三膨胀机(9)与冷凝器(7)连通，压缩机(3)还有蒸汽通道与高温热交换器(5)连通，冷凝器(7)还有冷凝液管路经第二循环泵(12)与第二蒸发器(13)连通之后第二蒸发器(13)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经第二高温热交换器(6)与高温热交换器(5)连通，高温热交换器(5)还有蒸汽通道与膨胀机(1)连通；高温热交换器(5)还有热源介质通道与外部连通，第二高温热交换器(6)或还有热源介质通道与外部连通，冷凝器(7)还有冷却介质通道与外部连通，蒸发器(8)或还有热源介质通道与外部连通，第二蒸发器(13)或还有热源介质通道与外部连通，膨胀机(1)连接压缩机(3)并传输动力，形成联合循环动力装置；其中，或膨胀机(1)连接压缩机(3)、循环泵(4)和第二循环泵(12)并传输动力。
  7. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、第二循环泵、第二蒸发器和预热器所组成；冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通，膨胀机(1)有低压蒸汽通道经第二蒸发器(13)、第二高温热交换器(6)和预热器(14)与蒸发器(8)连通，蒸发器(8)还有低压蒸汽通道分别直接与压缩机(3)连通和经第三膨胀机(9)与冷凝器(7)连通，压缩机(3)还有蒸汽通道与高温热交换器(5)连通，冷凝器(7)还有冷凝液管路经第二循环泵(12)和预热器(14)与第二蒸发器(13)连通之后第二蒸发器(13)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经第二高温热交换器(6)与高温热交换器(5)连通，高温热交换器(5)还有蒸汽通道与膨胀机(1)连通； 高温热交换器(5)还有热源介质通道与外部连通，第二高温热交换器(6)或还有热源介质通道与外部连通，冷凝器(7)还有冷却介质通道与外部连通，蒸发器(8)或还有热源介质通道与外部连通，第二蒸发器(13)或还有热源介质通道与外部连通，膨胀机(1)连接压缩机(3)并传输动力，形成联合循环动力装置；其中，或膨胀机(1)连接压缩机(3)、循环泵(4)和第二循环泵(12)并传输动力。
  8. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、循环泵、高温热交换器、第二高温热交换器、冷凝器、蒸发器、第三膨胀机、高温回热器、第二循环泵和第二蒸发器所组成；冷凝器(7)有冷凝液管路经循环泵(4)与蒸发器(8)连通，膨胀机(1)有低压蒸汽通道经高温回热器(10)、第二蒸发器(13)和第二高温热交换器(6)与蒸发器(8)连通，蒸发器(8)还有低压蒸汽通道分别直接与压缩机(3)连通和经第三膨胀机(9)与冷凝器(7)连通，压缩机(3)还有蒸汽通道经高温回热器(10)与高温热交换器(5)连通，冷凝器(7)还有冷凝液管路经第二循环泵(12)与第二蒸发器(13)连通之后第二蒸发器(13)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经第二高温热交换器(6)和高温回热器(10)与高温热交换器(5)连通，高温热交换器(5)还有蒸汽通道与膨胀机(1)连通；高温热交换器(5)还有热源介质通道与外部连通，第二高温热交换器(6)或还有热源介质通道与外部连通，冷凝器(7)还有冷却介质通道与外部连通，蒸发器(8)或还有热源介质通道与外部连通，第二蒸发器(13)或还有热源介质通道与外部连通，膨胀机(1)连接压缩机(3)并传输动力，形成联合循环动力装置；其中，或膨胀机(1)连接压缩机(3)、循环泵(4)和第二循环泵(12)并传输动力。
  9. 联合循环动力装置，是在权利要求6-8所述的任一一款联合循环动力装置中，增加低温回热器和第三循环泵，将冷凝器(7)有冷凝液管路经第二循环泵(12)与第二蒸发器(13)连通调整为冷凝器(7)有冷凝液管路经第二循环泵(12)与低温回热器(11)连通，压缩机(3)增设中间抽汽通道与低温回热器(11)连通，低温回热器(11)再有冷凝液管路经第三循环泵(15)与第二蒸发器(13)连通，形成联合循环动力装置。
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