WO2020238223A1 - 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
WO2020238223A1
WO2020238223A1 PCT/CN2020/000120 CN2020000120W WO2020238223A1 WO 2020238223 A1 WO2020238223 A1 WO 2020238223A1 CN 2020000120 W CN2020000120 W CN 2020000120W WO 2020238223 A1 WO2020238223 A1 WO 2020238223A1
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WIPO (PCT)
Prior art keywords
expander
evaporator
condenser
compressor
heat exchanger
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PCT/CN2020/000120
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English (en)
French (fr)
Inventor
李华玉
Original Assignee
李华玉
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Publication of WO2020238223A1 publication Critical patent/WO2020238223A1/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
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • 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
    • 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
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and 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
    • 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
    • F01K7/32—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, third expander, circulating pump, second circulating pump, high temperature heat exchanger, high temperature evaporator, condenser and mixed evaporator ;
  • the condenser has a condensate pipeline connected with the mixing evaporator via a circulating pump, the expander has a low-pressure steam channel connected with the mixing evaporator, and the mixing evaporator has a low-pressure steam channel directly connected to the compressor and via the third expander.
  • the condenser is connected, the compressor also has a steam channel connected with the high-temperature heat exchanger, the condenser and the condensate pipeline are connected with the high-temperature evaporator through the second circulating pump, and the high-temperature evaporator has a steam channel connected with the second expander,
  • the second expander also has a steam channel connected with the high temperature heat exchanger, and the high temperature heat exchanger has a steam channel connected with the expander;
  • the high temperature heat exchanger and the high temperature evaporator also have heat source medium channels connected to the outside, and the condenser has The cooling medium channel is connected to the outside, and the mixing 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 unit; among them, or the expander is connected to the compressor, circulating pump and the second cycle Pump and transmit power.
  • Combined cycle power plant mainly composed of expander, second expander, compressor, third expander, circulating pump, second circulating pump, high temperature heat exchanger, high temperature evaporator, condenser, mixed evaporator and supply
  • the condenser has a condensate pipeline connected to the mixing evaporator via a circulating pump, the expander has a low-pressure steam channel connected to the mixing evaporator via a heat supply, and the mixing evaporator has a low-pressure steam channel directly connected to the compressor.
  • the compressor and the steam channel are connected with the high-temperature heat exchanger, the condenser and the condensate pipeline are connected with the high-temperature evaporator through the second circulating pump, and then the high-temperature evaporator has steam
  • the channel is connected with the second expander, the second expander also has a steam channel connected with the high temperature heat exchanger, and the high temperature heat exchanger has a steam channel connected with the expander; the high temperature heat exchanger and the high temperature evaporator also have heat source medium channels respectively Connected to the outside, the condenser also has a cooling medium channel to communicate with the outside, the mixed evaporator or a heat source medium channel is connected to the outside, the heat supply has a heated medium channel to communicate with the outside, and the expander is connected to the compressor and transmits power.
  • a combined cycle power plant is formed; among them, an expander is connected to the compressor, the circulating pump and the second circulating pump and transmits power
  • Combined cycle power plant mainly composed of expander, second expander, compressor, third expander, circulating pump, second circulating pump, high temperature heat exchanger, high temperature evaporator, condenser, mixed evaporator and Composed of four expanders;
  • the condenser has a condensate pipeline connected with the mixing evaporator through a circulating pump
  • the expander has a low-pressure steam channel connected with the mixing evaporator
  • the fourth expander has a low-pressure steam channel connected with the mixing evaporator for mixed evaporation
  • the compressor also has a low-pressure steam channel directly connected to the compressor and connected to the condenser via the third expander, the compressor also has a steam channel connected to the high-temperature heat exchanger, and the condenser and the condensate pipeline are connected to the second circulating pump via the second circulating pump.
  • the high-temperature evaporator After the high-temperature evaporator is connected, the high-temperature evaporator has a steam channel to communicate with the second expander, the second expander also has a steam channel connected with the high-temperature heat exchanger, and the high-temperature heat exchanger has an intermediate steam channel connected with the fourth expander.
  • the high-temperature heat exchanger also has a steam channel connected to the expander; the high-temperature heat exchanger and the high-temperature evaporator also have a heat source medium channel to communicate with the outside, the condenser also has a cooling medium channel to communicate with the outside, a mixed evaporator or a heat source medium
  • the channel communicates with the outside, and the expander and the fourth expander are connected to the compressor and transmit power to form a combined cycle power device; wherein, or the expander and the fourth expander are connected to the compressor, the circulation pump and the second circulation pump and transmit power.
  • Combined cycle power plant mainly composed of expander, second expander, compressor, third expander, circulating pump, second circulating pump, high temperature heat exchanger, high temperature evaporator, condenser, mixed evaporator, supply
  • the condenser is composed of a heat exchanger and a fourth expander; the condenser has a condensate pipeline connected to the mixing evaporator via a circulating pump, the expander has a low-pressure steam channel connected to the mixing evaporator via a heat supply, and the fourth expander has a low-pressure steam channel It communicates with the mixing evaporator through the heat supply, and the mixing evaporator has a low-pressure steam channel directly connected with the compressor and connected with the condenser via the third expander, and the compressor has a steam channel connected with the high-temperature heat exchanger.
  • the condenser There is also a condensate pipeline connected to the high-temperature evaporator through the second circulating pump. After the high-temperature evaporator has a steam channel connected with the second expander, the second expander also has a steam channel connected with the high-temperature heat exchanger.
  • the high temperature heat exchanger also has a steam channel connected to the expander;
  • the high temperature heat exchanger and the high temperature evaporator also have heat source medium channels connected to the outside, and the condenser also has a cooling medium channel Connected with the outside, the mixed evaporator or the heat source medium channel communicates with the outside, the heat supply also has the heated medium channel connected with the outside, the expander and the fourth expander are connected to the compressor and transmit power, forming a combined cycle power plant; Among them, or the expander and the fourth expander are 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, third expander, circulating pump, second circulating pump, high temperature heat exchanger, high temperature evaporator, condenser, mixed evaporator and high temperature
  • the condenser has a condensate pipeline connected to the mixing evaporator via a circulating pump, the expander has a low-pressure steam channel connected to the mixing evaporator via a high-temperature regenerator, and the mixing evaporator has a low-pressure steam channel directly connected to the mixing evaporator.
  • the compressor communicates with the condenser through the third expander, the compressor and the steam passage communicate with the high temperature heat exchanger through the high temperature regenerator, and the condenser and the condensate pipeline communicate with the high temperature evaporator through the second circulating pump
  • the high-temperature 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 high-temperature regenerator
  • the high-temperature heat exchanger also has a steam passage that communicates with the expander
  • the exchanger and the high-temperature evaporator also have a heat source medium channel to communicate with the outside
  • the condenser also has a cooling medium channel to communicate with the outside
  • the mixed evaporator or a heat source medium channel communicates with the outside
  • the expander is connected to the compressor and transmits power to form Combined cycle power plant; wherein, or expander connects compressor, circulating pump and second circulating pump and transmits power
  • Combined cycle power plant mainly composed of expander, second expander, compressor, third expander, circulating pump, second circulating pump, high temperature heat exchanger, high temperature evaporator, condenser, mixed evaporator, supply
  • the condenser is composed of a heat exchanger and a high-temperature regenerator; the condenser has a condensate pipeline connected to the mixing evaporator through a circulating pump, and the expander has a low-pressure steam channel that communicates with the mixing evaporator through a high-temperature regenerator and a heat supply device, and the mixed evaporator
  • the high-temperature heat exchanger also has steam.
  • the channel communicates with the expander; the high-temperature heat exchanger and the high-temperature evaporator respectively have a heat source medium channel to communicate with the outside, the condenser also has a cooling medium channel to communicate with the outside, and the mixed evaporator or a heat source medium channel communicates with the outside to supply heat
  • the device also has a heated medium channel communicating with the outside, and 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, the circulating pump and the second circulating pump and transmits power.
  • 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 1-6, and connect the condensate pipeline of the condenser to the circulating pump through the circulating pump.
  • the communication of the mixed evaporator is adjusted so that the condenser has a condensate pipeline connected to the low-temperature regenerator via a circulating pump, the compressor is additionally provided with an intermediate extraction channel to communicate with the low-temperature regenerator, and the low-temperature regenerator has a condensate pipeline through the third
  • the circulation pump is connected with the mixing evaporator to form a combined cycle power plant.
  • the combined cycle power plant is to add a new regenerator and a new circulating pump to any of the combined cycle power plants described in items 1-7, and connect the condenser with the condensate pipeline through the second
  • the communication between the circulating pump and the high-temperature evaporator is adjusted so that the condenser has a condensate pipeline connected to the newly added regenerator via the second circulating pump.
  • the compressor is provided with an additional intermediate extraction channel to communicate with the newly added regenerator.
  • the condensate pipeline is connected to the high-temperature evaporator through the newly added circulating pump to form a combined cycle power plant.
  • Figure 1/8 is the first principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 2/8 is the second principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 3/8 is the third principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 4/8 is the fourth principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Figure 5/8 is the fifth principle thermal system diagram of the combined cycle power plant according to the present invention.
  • Figure 6/8 is the sixth principle thermal system diagram of the combined cycle power plant according to the present invention.
  • Figure 7/8 is the seventh principle thermal system diagram of the combined cycle power plant according to the present invention.
  • Figure 8/8 is the eighth principle thermal system diagram of the combined cycle power plant provided by the present invention.
  • Condenser 9 has a condensate pipeline connected to the mixing evaporator 10 via a circulating pump 5, the expander 1 has a low-pressure steam channel connected with the mixing evaporator 10, and the mixing evaporator 10 has a low-pressure steam channel directly connected to the compressor 3 respectively
  • the compressor 3 also has a steam channel connected with the high-temperature heat exchanger 7, and the condenser 9 has a condensate pipeline connected with the high-temperature evaporator 8 through the second circulating pump 6
  • the high-temperature evaporator 8 further has a steam passage connected with the second expander 2, and the second expander 2 has a steam passage connected with the high-temperature heat exchanger 7, and the high-temperature heat exchanger 7
  • the first condensate of the condenser 9 is boosted by the circulating pump 5 into the mixing evaporator 10, mixed with the low-pressure steam from the expander 1, absorbs heat and rises up and vaporizes 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 7 to absorb heat and increase the temperature, and the second path flows through the third expander 4 to reduce pressure and then enter the condenser 9 to release heat and condense;
  • the second condensate of the device 9 is boosted by the second circulating pump 6 into the high-temperature evaporator 8, absorbs heat, rises, vaporizes, and overheats, flows through the second expander 2 to reduce pressure, and then enters the high-temperature heat exchanger 7 for suction.
  • the steam discharged from the high-temperature heat exchanger 7 flows through the expander 1 to perform work, and the low-pressure steam discharged from the expander 1 enters the mixing evaporator 10 to release heat and cool;
  • the heat source medium passes through the high-temperature heat exchanger 7 and the high-temperature evaporator 8 Provides driving heat load, the cooling medium takes away the low temperature heat load through the condenser 9, the expander 1 provides power to the compressor 3, and the expander 1, the second expander 2 and the third expander 4 provide power to the outside to form a combined cycle powerplant.
  • the condenser 9 has a condensate pipeline connected to the mixing evaporator 10 via the circulating pump 5, the expander 1 has a low-pressure steam channel connected to the mixing evaporator 10 via the heat supply 11, and the mixing evaporator 10 has low pressure
  • the steam passage is directly connected to the compressor 3 and communicates with the condenser 9 through the third expander 4, the compressor 3 also has a steam passage that communicates with the high-temperature heat exchanger 7, and the condenser 9 has a condensate pipeline through the second cycle
  • the pump 6 communicates with the high-temperature evaporator 8
  • the high-temperature evaporator 8 has a steam channel to communicate with the second expander 2
  • the second expander 2 has a steam channel to communicate with the
  • the channel is connected with the expander 1; the high-temperature heat exchanger 7 and the high-temperature evaporator 8 also have heat source medium channels to communicate with the outside, the condenser 9 also has a cooling medium channel to communicate with the outside, and the heat supply 11 also has a heated medium channel with the outside.
  • the expander 1 is connected to the compressor 3 and transmits power.
  • the first condensate of the condenser 9 is boosted by the circulating pump 5 into the mixing evaporator 10, mixed with the low-pressure steam from the heater 11, absorbing heat and increasing temperature and vaporizing into saturated or superheated steam.
  • the first path enters the compressor 3 to increase the pressure and then enters the high temperature heat exchanger 7 to absorb heat and increase the temperature, and the second path flows through the third expander 4 to reduce pressure and then enter the condenser 9 to release heat and condense;
  • the second condensate of the condenser 9 is boosted by the second circulating pump 6 into the high-temperature evaporator 8, absorbs heat, increases, vaporizes and overheats, flows through the second expander 2 to reduce pressure, and then enters the high-temperature heat exchanger 7 Heat absorption and temperature rise;
  • the steam discharged from the high-temperature heat exchanger 7 flows through the expander 1 to perform work, and the low-pressure steam discharged from the expander 1 flows through the heat supply 11 to release heat and cools, and then enters the hybrid evaporator 10 to release heat and cool; heat source medium
  • the driving heat load is provided by the high temperature heat exchanger 7 and the high temperature evaporator 8.
  • the cooling medium takes away the low temperature heat load through the condenser 9, and the heated medium takes away the medium temperature heat load through the heater 11, and the expander 1 sends the compressor 3 To provide power, the expander 1, the second expander 2 and the third expander 4 provide power to the outside to form a combined cycle power plant.
  • the condenser 9 has a condensate pipeline connected to the mixing evaporator 10 via the circulating pump 5, the expander 1 has a low-pressure steam channel connected with the mixing evaporator 10, and the fourth expander 12 has a low-pressure steam channel and mixing
  • the evaporator 10 is connected, and the mixed evaporator 10 has a low-pressure steam channel directly connected with the compressor 3 and connected with the condenser 9 through the third expander 4, and the compressor 3 has a steam channel connected with the high-temperature heat exchanger 7 to condense
  • the device 9 also has a condensate pipeline connected to the high-temperature evaporator 8 through the second circulating pump 6 and then the high-temperature evaporator 8 has a steam channel to communicate with the second expander 2, and the second expander
  • the first condensate of the condenser 9 is boosted by the circulating pump 5 into the mixing evaporator 10, mixed with the two low-pressure steam from the expander 1 and the fourth expander 12, and absorbs heat to heat up and combine steam.
  • the first path enters the compressor 3 to increase the pressure and then enters the high-temperature heat exchanger 7 to absorb heat and increase the temperature, and the second path flows through the third expander 4 to reduce pressure and then enter the condensation
  • the condenser 9 releases heat and condenses; the second condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the high-temperature evaporator 8, absorbs heat to increase temperature, vaporizes and overheat, and flows through the second expander 2 to reduce pressure and perform work.
  • the steam that enters the high temperature heat exchanger 7 absorbs heat and heats up to a certain level and then divides into two paths-the first path is provided to the fourth expander through the middle steam passage of the high temperature heat exchanger 7 12 Pressure reduction work, the second path continues to absorb heat and heat up and then enters the expander 1 to reduce pressure; the low pressure steam discharged from the fourth expander 12 and the expander 1 is provided to the mixed evaporator 10, and is condensed from the circulating pump 5.
  • the liquid mixture releases heat and cools; the heat source medium passes through the high temperature heat exchanger 7 and the high temperature evaporator 8 to provide driving heat load, and the cooling medium passes through the condenser 9 to take away the low temperature heat load; the expander 1 and the fourth expander 12 send to the compressor 3 To provide power, the expander 1, the second expander 2, the third expander 4, and the fourth expander 12 provide power to the outside to form a combined cycle power plant.
  • the condenser 9 has a condensate pipeline connected to the mixing evaporator 10 via a circulating pump 5, and the expander 1 has a low-pressure steam channel that communicates with the mixing evaporator 10 via the heat supply 11, and the fourth
  • the expander 12 has a low-pressure steam passage that communicates with the mixing evaporator 10 through the heat supply 11, and the mixing evaporator 10 also has a low-pressure steam passage that directly communicates with the compressor 3 and communicates with the condenser 9 through the third expander 4.
  • the compressor 3 There is also a steam channel connected with the high temperature heat exchanger 7, and the condenser 9 has a condensate pipeline connected with the high temperature evaporator 8 through the second circulating pump 6 and then the high temperature evaporator 8 has a steam channel connected with the second expander 2
  • the second expander 2 also has a steam channel connected to the high temperature heat exchanger 7, the high temperature heat exchanger 7 has an intermediate steam channel connected to the fourth expander 12, and the high temperature heat exchanger 7 has a steam channel connected to the expander 1.
  • the high-temperature heat exchanger 7 and the high-temperature evaporator 8 also have heat source medium channels communicating with the outside, the condenser 9 also has a cooling medium channel communicating with the outside, the heat supply 11 also has a heated medium channel communicating with the outside, and the expander 1
  • the compressor 3 is connected to the fourth expander 12 and transmits power.
  • the first condensate of the condenser 9 is boosted by the circulating pump 5 into the mixing evaporator 10, mixed with the low-pressure steam from the heater 11, absorbing heat and increasing temperature and vaporizing into saturated or superheated steam.
  • the first path enters the compressor 3 to increase the pressure and then enters the high temperature heat exchanger 7 to absorb heat and increase the temperature, and the second path flows through the third expander 4 to reduce pressure and then enter the condenser 9 to release heat and condense;
  • the second condensate of the condenser 9 is boosted by the second circulating pump 6 into the high-temperature evaporator 8, absorbs heat, increases, vaporizes and overheats, flows through the second expander 2 to reduce pressure, and then enters the high-temperature heat exchanger 7 Heat absorption and temperature rise; the steam entering the high-temperature heat exchanger 7 absorbs heat and rises to a certain level and then divides into two paths-the first path is provided to the fourth expander 12 through the middle steam passage of the high-temperature heat exchanger 7 for pressure reduction work.
  • the second path After the second path continues to absorb heat and increase its temperature, it enters the expander 1 to reduce pressure; the low-pressure steam discharged from the fourth expander 12 and the expander 1 flows through the heater 11 to release heat and cool, and then is supplied to the mixed evaporator 10,
  • the condensate of the pump 5 mixes and releases heat and cools; the heat source medium passes through the high temperature heat exchanger 7 and the high temperature evaporator 8 to provide driving heat load, the cooling medium passes through the condenser 9 to take away the low temperature heat load, and the heated medium passes through the heater 11 Take the medium temperature and heat load; expander 1 and fourth expander 12 provide power to compressor 3, expander 1, second expander 2, third expander 4, and fourth expander 12 provide power to the outside to form a joint Cycle power plant.
  • the condenser 9 has a condensate pipeline connected to the mixing evaporator 10 via a circulating pump 5, and the expander 1 has a low-pressure steam channel connected to the mixing evaporator 10 via a high temperature regenerator 13, and the mixing evaporator 10 also There are low-pressure steam passages directly connected to the compressor 3 and connected to the condenser 9 through the third expander 4, the compressor 3 also has a steam passage that communicates with the high-temperature heat exchanger 7 through the high-temperature regenerator 13, and the condenser 9 also
  • the condensate pipeline is connected to the high-temperature evaporator 8 through the second circulating pump 6 and then the high-temperature evaporator 8 has a steam passage to communicate with the second expander 2, and the second
  • the first condensate of the condenser 9 is boosted by the circulating pump 5 into the mixing evaporator 10, mixed with the low-pressure steam from the expander 1, absorbs heat and rises up and vaporizes into saturated or superheated steam, and then divided into Two paths-the first path enters the compressor 3 to increase the pressure, the second path flows through the third expander 4 to reduce pressure and then enters the condenser 9 to release heat and condense; the second path condensate in the condenser 9 passes through the second path
  • the second circulating pump 6 boosts pressure and enters the high-temperature evaporator 8, absorbs heat to increase temperature, vaporizes and overheats, flows through the second expander 2 to reduce pressure, and flows through the high-temperature regenerator 13 to absorb heat and increase temperature, and then enters the high-temperature heat exchanger 7 Heat absorption and temperature rise; the steam discharged from the compressor 3 flows through the high-temperature regenerator 13 to absorb heat and rises, and then enters the
  • the low-pressure steam discharged from the expander 1 flows through the high-temperature regenerator 13 to release heat and cool down, and then enters the hybrid evaporator 10 to release heat and cool down; the heat source medium passes through the high-temperature heat exchanger 7 and the high-temperature evaporator 8 to provide driving heat load, and the cooling medium is condensed
  • the device 9 takes away the low temperature heat load, the expander 1 provides power to the compressor 3, and the expander 1, the second expander 2 and the third expander 4 provide power to the outside to form a combined cycle power plant.
  • the compressor 3 also has a steam passage through the high-temperature regenerator 13 for high-temperature heat exchange
  • the condenser 7 is connected, and the condenser 9 has a condensate pipeline connected to the high-temperature evaporator 8 through the second circulating pump 6.
  • the second expander 2 After the high-temperature evaporator 8 has a steam channel to communicate with the second expander 2, the second expander 2 also has steam The channel communicates with the high-temperature heat exchanger 7 through the high-temperature regenerator 13, and the high-temperature heat exchanger 7 also has a steam channel connected to the expander 1; the high-temperature heat exchanger 7 and the high-temperature evaporator 8 also have heat source medium channels connected to the outside, respectively,
  • the condenser 9 also has a cooling medium channel to communicate with the outside, the heater 11 also has a heated medium channel to communicate with the outside, and the expander 1 is connected to the compressor 3 and transmits power.
  • the first condensate of the condenser 9 is boosted by the circulating pump 5 into the mixing evaporator 10, mixed with the low-pressure steam from the heater 11, absorbing heat and increasing temperature and vaporizing into saturated or superheated steam.
  • the first path enters the compressor 3 to increase the pressure
  • the second path flows through the third expander 4 to reduce pressure and then enters the condenser 9 to release heat and condense
  • the second path of condensate in the condenser 9 passes through
  • the second circulating pump 6 boosts pressure and enters the high-temperature 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 high-temperature regenerator 13 to absorb heat and increase temperature, and then enters the high-temperature heat exchanger 7 Heat absorption and temperature rise;
  • the steam discharged from the compressor 3 flows through the high-temperature regenerator 13 to absorb heat and heat up, and then enters the high-temperature heat exchanger 7 to absorb heat and heat up;
  • the steam discharged from the high-temperature heat exchanger 7 flows through the expander 1 to perform work ,
  • the low-pressure steam discharged from the expander 1 flows through the high temperature regenerator 13 and
  • the cooling medium takes away the low temperature heat load through the condenser 9, and the heated medium takes away the medium temperature heat load through the heater 11, the expander 1 provides power to the compressor 3, the expander 1, the second expander 2 And the third expander 4 provide power to the outside to form a combined cycle power plant.
  • the condensate of the condenser 9 is boosted by the circulating pump 5 into the low-temperature regenerator 14, mixed with the extraction steam from the compressor 3 to absorb heat and increase the temperature. After the extraction steam is mixed with the condensate, it releases heat and condenses ;
  • the condensate of the low-temperature regenerator 14 is boosted by the third circulating pump 15 into the mixing evaporator 10, mixed with the low-pressure steam from the expander 1, absorbing heat and heating up and vaporizing into saturated or superheated steam, and then divided into two ways-
  • the first path enters the compressor 3, the second path flows through the third expander 4 to reduce pressure and then enters the condenser 9 to release heat and condense; 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 14 through the middle extraction channel to release heat and condense, and the second path continues to increase in pressure and temperature; the second path condensate of the conden
  • Heat absorption, vaporization and overheating flow through the second expander 2 to reduce pressure and perform work, and then enter the high-temperature heat exchanger 7 to absorb heat and increase the temperature, and the steam discharged from the compressor 3 enters the high-temperature heat exchanger 7 to absorb heat and increase the temperature;
  • the steam discharged from the heat exchanger 7 flows through the expander 1 to perform work, and the low-pressure steam discharged from the expander 1 enters the hybrid evaporator 10 to release heat and cool down;
  • the heat source medium passes through the high temperature heat exchanger 7 and the high temperature evaporator 8 to provide driving heat
  • the cooling medium takes away the low-temperature heat load through the condenser 9, the expander 1 provides power to the compressor 3, and the expander 1, the second expander 2 and the third expander 4 provide power to the outside to form a combined cycle power plant.
  • the first condensate of the condenser 9 is boosted by the circulating pump 5 into the mixing evaporator 10, mixed with the low-pressure steam from the expander 1, absorbs heat and rises up and vaporizes into saturated or superheated steam, and then divided into Two paths-the first path enters the compressor 3, the second path flows through the third expander 4 to reduce pressure and then enters the condenser 9 to release heat and condense; the low pressure steam entering the compressor 3 rises to a certain degree after the pressure rises It is divided into two paths—the first path enters the new regenerator A through the middle extraction channel to release heat and condense, and the second path continues to increase in pressure and temperature; the second path of condensate in the condenser 9 is 6 liters through the second circulating pump The pressure enters the newly-added regenerator A, mixes with the extraction steam from the compressor 3 to absorb heat and heats up.
  • the condensate of the newly-added regenerator A passes through the newly-added circulating pump B
  • the pressure is increased and enters the high-temperature evaporator 8, which absorbs heat and heats up, vaporizes and superheats, and flows through the second expander 2 to reduce the pressure to perform work, and then enters the high-temperature heat exchanger 7 to absorb heat and heat up, and the steam discharged from the compressor 3 enters the high-temperature heat exchanger 7 heat absorption and temperature rise;
  • the steam discharged from the high-temperature heat exchanger 7 flows through the expander 1 to reduce pressure, and the low-pressure steam discharged from the expander 1 enters the hybrid evaporator 10 to release heat and cool;
  • the heat source medium passes through the high-temperature heat exchanger 7 and high temperature
  • the evaporator 8 provides driving heat load, the cooling medium takes away the low temperature heat load through the condenser 9, the expander 1 provides power to the compressor 3, 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 bottom cycle-Rankine cycle and improve thermal efficiency.

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Abstract

联合循环动力装置，属于能源与动力技术领域。冷凝器(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通，膨胀机(1)有低压蒸汽通道与混合蒸发器(10)连通，混合蒸发器(10)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(4)与冷凝器(9)连通，压缩机(3)还有蒸汽通道与高温热交换器(7)连通，冷凝器(9)还有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通之后高温蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道与高温热交换器(7)连通，高温热交换器(7)还有蒸汽通道与膨胀机(1)连通；高温热交换器(7)和高温蒸发器(8)还分别有热源介质通道与外部连通，冷凝器(9)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，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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器和混合蒸发器所组成；冷凝器有冷凝液管路经循环泵与混合蒸发器连通，膨胀机有低压蒸汽通道与混合蒸发器连通，混合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高温蒸发器连通之后高温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；高温热交换器和高温蒸发器还分别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，混合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。
2.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和供热器所组成；冷凝器有冷凝液管路经循环泵与混合蒸发器连通，膨胀机有低压蒸汽通道经供热器与混合蒸发器连通，混合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高温蒸发器连通之后高温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；高温热交换器和高温蒸发器还分别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，混合蒸发器或 还有热源介质通道与外部连通，供热器还有被加热介质通道与外部连通，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。
3.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和第四膨胀机所组成；冷凝器有冷凝液管路经循环泵与混合蒸发器连通，膨胀机有低压蒸汽通道与混合蒸发器连通，第四膨胀机有低压蒸汽通道与混合蒸发器连通，混合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高温蒸发器连通之后高温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与高温热交换器连通，高温热交换器还有中间蒸汽通道与第四膨胀机连通，高温热交换器还有蒸汽通道与膨胀机连通；高温热交换器和高温蒸发器还分别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，混合蒸发器或还有热源介质通道与外部连通，膨胀机和第四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，或膨胀机和第四膨胀机连接压缩机、循环泵和第二循环泵并传输动力。
4.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器、供热器和第四膨胀机所组成；冷凝器有冷凝液管路经循环泵与混合蒸发器连通，膨胀机有低压蒸汽通道经供热器与混合蒸发器连通，第四膨胀机有低压蒸汽通道经供热器与混合蒸发器连通，混合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高温蒸发器连通之后高温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与高温热交换器连通，高温热交换器还有中间蒸汽通道与第四膨胀机连通，高温热交换器还有蒸汽通道与膨胀机连通；高温热交换器和高温蒸发器还分别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，混合蒸发器或还有热源介质通道与外部连通，供热器还有被加热介质通道与外部连通，膨胀机和第四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，或膨胀机和第四膨胀机连接压缩机、循环泵和第二循环泵并传输动力。
5.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合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混合蒸发器连通，膨胀机有低压蒸汽通道经高温回热器与混合蒸发器连通，混合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高温蒸发器连通之后高温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；高温热交换器和高温蒸发器还分别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，混合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。
6.联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器、供热器和高温回热器所组成；冷凝器有冷凝液管路经循环泵与混合蒸发器连通，膨胀机有低压蒸汽通道经高温回热器和供热器与混合蒸发器连通，混合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高温蒸发器连通之后高温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；高温热交换器和高温蒸发器还分别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，混合蒸发器或还有热源介质通道与外部连通，供热器还有被加热介质通道与外部连通，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，是在第1-6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循环泵与混合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三循环泵与混合蒸发器连通，形成联合循环动力装置。
8.联合循环动力装置，是在第1-7项所述的任一一款联合循环动力装置中，增加新增回热器和新增循环泵，将冷凝器有冷凝液管路经第二循环泵与高温蒸发器连通调整为冷凝器有冷凝液管路经第二循环泵与新增回热器连通，压缩机增设中间抽汽通道与新增回热器连通，新增回热器再有冷凝液管路经新增循环泵与高温蒸发器连通，形成联合循环动力装置。
附图说明：
图1/8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2/8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3/8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4/8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5/8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6/8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7/8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8/8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。
图中，1-膨胀机，2-第二膨胀机，3-压缩机，4-第三膨胀机，5-循环泵，6-第二循环泵，7-高温热交换器，8-高温蒸发器，9-冷凝器，10-混合蒸发器(余热锅炉)，11-供热器，12-第四膨胀机，13-高温回热器，14-低温回热器，15-第三循环泵；A-新增回热器，B-新增循环泵。
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1/8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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器和混合蒸发器所组成；冷凝器9有冷凝液管路经 循环泵5与混合蒸发器10连通，膨胀机1有低压蒸汽通道与混合蒸发器10连通，混合蒸发器10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4与冷凝器9连通，压缩机3还有蒸汽通道与高温热交换器7连通，冷凝器9还有冷凝液管路经第二循环泵6与高温蒸发器8连通之后高温蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道与高温热交换器7连通，高温热交换器7还有蒸汽通道与膨胀机1连通；高温热交换器7和高温蒸发器8还分别有热源介质通道与外部连通，冷凝器9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9的第一路冷凝液经循环泵5升压进入混合蒸发器10，与来自膨胀机1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7吸热升温，第二路流经第三膨胀机4降压作功之后进入冷凝器9放热并冷凝；冷凝器9的第二路冷凝液经第二循环泵6升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，之后进入高温热交换器7吸热升温；高温热交换器7排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽进入混合蒸发器10放热降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9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4向外部提供动力，形成联合循环动力装置。
图2/8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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和供热器所组成；冷凝器9有冷凝液管路经循环泵5与混合蒸发器10连通，膨胀机1有低压蒸汽通道经供热器11与混合蒸发器10连通，混合蒸发器10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4与冷凝器9连通，压缩机3还有蒸汽通道与高温热交换器7连通，冷凝器9还有冷凝液管路经第二循环泵6与高温蒸发器8连通之后高温蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道与高温热交换器7连通，高温热交换器7还有蒸汽通道与膨胀机1连通；高温热交换器7和高温蒸发器8还分别有热源介质通道与外部连通，冷凝器9还有冷却介质通道与外部连通，供热器11还有被加热介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器9的第一路冷凝液经循环泵5升压进入混合蒸发器10，与来自供热器11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7吸热升温，第二路流经第三膨胀机4降压作功之后进入冷凝器9放热并冷凝；冷凝器9的第二路冷凝液经第二循环泵6升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，之后进入高温热交换器7吸热升温；高温热交换器7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供热器11放热降温之后进入混合蒸发器10放热降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9带走低温热负荷，被加热介质通过供热器11带走中温热负荷，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4向外部提供动力，形成联合循环动力装置。
图3/8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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和第四膨胀机所组成；冷凝器9有冷凝液管路经循环泵5与混合蒸发器10连通，膨胀机1有低压蒸汽通道与混合蒸发器10连通，第四膨胀机12有低压蒸汽通道与混合蒸发器10连通，混合蒸发器10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4与冷凝器9连通，压缩机3还有蒸汽通道与高温热交换器7连通，冷凝器9还有冷凝液管路经第二循环泵6与高温蒸发器8连通之后高温蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道与高温热交换器7连通，高温热交换器7还有中间蒸汽通道与第四膨胀机12连通，高温热交换器7还有蒸汽通道与膨胀机1连通；高温热交换器7和高温蒸发器8还分别有热源介质通道与外部连通，冷凝器9还有冷却介质通道与外部连通，膨胀机1和第四膨胀机12连接压缩机3并传输动力。
(2)流程上，冷凝器9的第一路冷凝液经循环泵5升压进入混合蒸发器10，与来自膨胀机1和第四膨胀机12的两路低压蒸汽混合，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7吸热升温，第二路流经第三膨胀机4降压作功之后进入冷凝器9放热并冷凝；冷凝器9的第二路冷凝液经第二循环泵6升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，之后进入高温热交换器7吸热升温；进入高温热交换器7的蒸汽吸热升温到一定程度之后分成两路——第一路经高温热交换器7的中间蒸汽通道提供给第四膨胀机12降压作功，第二路继续吸热升温之后进入膨胀机1降压作功；第四膨胀机12和膨胀机1排放的低压蒸汽提供给混合蒸发器10，与来自循环泵5的冷凝液混合放热并降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9带走低温热负荷；膨胀机1和第四膨胀机12向压缩机3提供动力，膨胀机1、第二膨胀机2、第三膨胀机4和第四膨胀机12向外部提供动力，形成联合循环动力装置。
图4/8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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器、供热器和第四膨胀机所组成；冷凝器9有冷凝液管路经循环泵5与混合蒸发器10连通，膨胀机1有低压蒸汽通道经供热器11与混合蒸发器10连通，第四膨胀机12有低压蒸汽通道经供热器11与混合蒸发器10连通，混合蒸发器10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4与冷凝器9连通，压缩机3还有蒸汽通道与高温热交换器7连通，冷凝器9还有冷凝液管路经第二循环泵6与高温蒸发器8连通之后高温蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道与高温热交换器7连通，高温热交换器7还有中间蒸汽通道与第四膨胀机12连通，高温热交换器7还有蒸汽通道与膨胀机1连通；高温热交换器7和高温蒸发器8还分别有热源介质通道与外部连通，冷凝器9还有冷却介质通道与外部连通，供热器11还有被加热介质通道与外部连通，膨胀机1和第四膨胀机12连接压缩机3并传输动力。
(2)流程上，冷凝器9的第一路冷凝液经循环泵5升压进入混合蒸发器10，与来自供热器11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7吸热升温，第二路流经第三膨胀机4降压作功 之后进入冷凝器9放热并冷凝；冷凝器9的第二路冷凝液经第二循环泵6升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，之后进入高温热交换器7吸热升温；进入高温热交换器7的蒸汽吸热升温到一定程度之后分成两路——第一路经高温热交换器7的中间蒸汽通道提供给第四膨胀机12降压作功，第二路继续吸热升温之后进入膨胀机1降压作功；第四膨胀机12和膨胀机1排放的低压蒸汽流经供热器11放热降温，之后提供给混合蒸发器10，与来自循环泵5的冷凝液混合放热并降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9带走低温热负荷，被加热介质通过供热器11带走中温热负荷；膨胀机1和第四膨胀机12向压缩机3提供动力，膨胀机1、第二膨胀机2、第三膨胀机4和第四膨胀机12向外部提供动力，形成联合循环动力装置。
图5/8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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和高温回热器所组成；冷凝器9有冷凝液管路经循环泵5与混合蒸发器10连通，膨胀机1有低压蒸汽通道经高温回热器13与混合蒸发器10连通，混合蒸发器10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4与冷凝器9连通，压缩机3还有蒸汽通道经高温回热器13与高温热交换器7连通，冷凝器9还有冷凝液管路经第二循环泵6与高温蒸发器8连通之后高温蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经高温回热器13与高温热交换器7连通，高温热交换器7还有蒸汽通道与膨胀机1连通；高温热交换器7和高温蒸发器8还分别有热源介质通道与外部连通，冷凝器9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9的第一路冷凝液经循环泵5升压进入混合蒸发器10，与来自膨胀机1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4降压作功之后进入冷凝器9放热并冷凝；冷凝器9的第二路冷凝液经第二循环泵6升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经高温回热器13吸热升温，之后进入高温热交换器7吸热升温；压缩机3排放的蒸汽流经高温回热器13吸热升温，之后进入高温热交换器7吸热升温；高温热交换器7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13放热降温，之后进入混合蒸发器10放热降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9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4向外部提供动力，形成联合循环动力装置。
图6/8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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器、供热器和高温回热器所组成；冷凝器9有冷凝液管路经循环泵5与混合蒸发器10连通，膨胀机1有低压蒸汽通道经高温回热器13和供热器11与混合蒸发器10连通，混合蒸发器10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4与冷凝器9连通，压缩机3还有蒸汽通道经高温回热器13与高温热交换器7连通，冷凝器9还有冷凝液管路经第二循环泵6与高温蒸发器8连通之 后高温蒸发器8再有蒸汽通道与第二膨胀机2连通，第二膨胀机2还有蒸汽通道经高温回热器13与高温热交换器7连通，高温热交换器7还有蒸汽通道与膨胀机1连通；高温热交换器7和高温蒸发器8还分别有热源介质通道与外部连通，冷凝器9还有冷却介质通道与外部连通，供热器11还有被加热介质通道与外部连通，膨胀机1连接压缩机3并传输动力。
(2)流程上，冷凝器9的第一路冷凝液经循环泵5升压进入混合蒸发器10，与来自供热器11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4降压作功之后进入冷凝器9放热并冷凝；冷凝器9的第二路冷凝液经第二循环泵6升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，流经高温回热器13吸热升温，之后进入高温热交换器7吸热升温；压缩机3排放的蒸汽流经高温回热器13吸热升温，之后进入高温热交换器7吸热升温；高温热交换器7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13和供热器11逐步放热并降温，之后进入混合蒸发器10放热降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9带走低温热负荷，被加热介质通过供热器11带走中温热负荷，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4向外部提供动力，形成联合循环动力装置。
图7/8所示的联合循环动力装置是这样实现的：
(1)结构上，在图1/8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9有冷凝液管路经循环泵5与混合蒸发器10连通调整为冷凝器9有冷凝液管路经循环泵5与低温回热器14连通，压缩机3增设中间抽汽通道与低温回热器14连通，低温回热器14再有冷凝液管路经第三循环泵15与混合蒸发器10连通。
(2)流程上，冷凝器9的冷凝液经循环泵5升压进入低温回热器14，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14的冷凝液经第三循环泵15升压进入混合蒸发器10，与来自膨胀机1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，第二路流经第三膨胀机4降压作功之后进入冷凝器9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14放热并冷凝，第二路继续升压升温；冷凝器9的第二路冷凝液经第二循环泵6升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，之后进入高温热交换器7吸热升温，压缩机3排放的蒸汽进入高温热交换器7吸热升温；高温热交换器7排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽进入混合蒸发器10放热并降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9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4向外部提供动力，形成联合循环动力装置。
图8/8所示的联合循环动力装置是这样实现的：
(1)结构上，在图1/8所示的联合循环动力装置中，增加新增回热器和新增循环泵，将冷凝器9有冷凝液管路经第二循环泵6与高温蒸发器8连通调整为冷凝器9有冷凝液管路经第二循环泵6与新增回热器A连通，压缩机3增设中间抽汽通道与新增回热器A连通，新增回热器A再有冷凝液管路经新增循环泵B与高温蒸发器8连通。
(2)流程上，冷凝器9的第一路冷凝液经循环泵5升压进入混合蒸发器10，与来自膨胀 机1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，第二路流经第三膨胀机4降压作功之后进入冷凝器9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新增回热器A放热并冷凝，第二路继续升压升温；冷凝器9的第二路冷凝液经第二循环泵6升压进入新增回热器A，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；新增回热器A的冷凝液经新增循环泵B升压进入高温蒸发器8，吸热升温、汽化和过热，流经第二膨胀机2降压作功，之后进入高温热交换器7吸热升温，压缩机3排放的蒸汽进入高温热交换器7吸热升温；高温热交换器7排放的蒸汽流经膨胀机1降压作功，膨胀机1排放的低压蒸汽进入混合蒸发器10放热并降温；热源介质通过高温热交换器7和高温蒸发器8提供驱动热负荷，冷却介质通过冷凝器9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4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，增大底部循环——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，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 (8)

  1. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器和混合蒸发器所组成；冷凝器(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通，膨胀机(1)有低压蒸汽通道与混合蒸发器(10)连通，混合蒸发器(10)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(4)与冷凝器(9)连通，压缩机(3)还有蒸汽通道与高温热交换器(7)连通，冷凝器(9)还有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通之后高温蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道与高温热交换器(7)连通，高温热交换器(7)还有蒸汽通道与膨胀机(1)连通；高温热交换器(7)和高温蒸发器(8)还分别有热源介质通道与外部连通，冷凝器(9)还有冷却介质通道与外部连通，混合蒸发器(10)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(5)和第二循环泵(6)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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和供热器所组成；冷凝器(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通，膨胀机(1)有低压蒸汽通道经供热器(11)与混合蒸发器(10)连通，混合蒸发器(10)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(4)与冷凝器(9)连通，压缩机(3)还有蒸汽通道与高温热交换器(7)连通，冷凝器(9)还有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通之后高温蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道与高温热交换器(7)连通，高温热交换器(7)还有蒸汽通道与膨胀机(1)连通；高温热交换器(7)和高温蒸发器(8)还分别有热源介质通道与外部连通，冷凝器(9)还有冷却介质通道与外部连通，混合蒸发器(10)或还有热源介质通道与外部连通，供热器(11)还有被加热介质通道与外部连通，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(5)和第二循环泵(6)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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和第四膨胀机所组成；冷凝器(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通，膨胀机(1)有低压蒸汽通道与混合蒸发器(10)连通，第四膨胀机(12)有低压蒸汽通道与混合蒸发器(10)连通，混合蒸发器(10)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(4)与冷凝器(9)连通，压缩机(3)还有蒸汽通道与高温热交换器(7)连通，冷凝器(9)还有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通之后高温蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道与高温热交换器(7)连通，高温热交换器(7)还有中间蒸汽通道与第四膨胀机(12)连通，高温热交换器(7)还有蒸汽通道与膨胀机(1)连通；高温热交换器(7)和高温蒸发器(8)还分别有热源介质通道与外部连通，冷凝器(9)还有冷却介质通道与外部连通，混合蒸发器(10)或还有热源介质通道与外部连通，膨胀机(1)和第四膨胀机(12)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)和第四膨胀机(12)连接压缩机(3)、循环泵 (5)和第二循环泵(6)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、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器、供热器和第四膨胀机所组成；冷凝器(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通，膨胀机(1)有低压蒸汽通道经供热器(11)与混合蒸发器(10)连通，第四膨胀机(12)有低压蒸汽通道经供热器(11)与混合蒸发器(10)连通，混合蒸发器(10)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(4)与冷凝器(9)连通，压缩机(3)还有蒸汽通道与高温热交换器(7)连通，冷凝器(9)还有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通之后高温蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道与高温热交换器(7)连通，高温热交换器(7)还有中间蒸汽通道与第四膨胀机(12)连通，高温热交换器(7)还有蒸汽通道与膨胀机(1)连通；高温热交换器(7)和高温蒸发器(8)还分别有热源介质通道与外部连通，冷凝器(9)还有冷却介质通道与外部连通，混合蒸发器(10)或还有热源介质通道与外部连通，供热器(11)还有被加热介质通道与外部连通，膨胀机(1)和第四膨胀机(12)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)和第四膨胀机(12)连接压缩机(3)、循环泵(5)和第二循环泵(6)并传输动力。
  5. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器和高温回热器所组成；冷凝器(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通，膨胀机(1)有低压蒸汽通道经高温回热器(13)与混合蒸发器(10)连通，混合蒸发器(10)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(4)与冷凝器(9)连通，压缩机(3)还有蒸汽通道经高温回热器(13)与高温热交换器(7)连通，冷凝器(9)还有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通之后高温蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经高温回热器(13)与高温热交换器(7)连通，高温热交换器(7)还有蒸汽通道与膨胀机(1)连通；高温热交换器(7)和高温蒸发器(8)还分别有热源介质通道与外部连通，冷凝器(9)还有冷却介质通道与外部连通，混合蒸发器(10)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(5)和第二循环泵(6)并传输动力。
  6. 联合循环动力装置，主要由膨胀机、第二膨胀机、压缩机、第三膨胀机、循环泵、第二循环泵、高温热交换器、高温蒸发器、冷凝器、混合蒸发器、供热器和高温回热器所组成；冷凝器(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通，膨胀机(1)有低压蒸汽通道经高温回热器(13)和供热器(11)与混合蒸发器(10)连通，混合蒸发器(10)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(4)与冷凝器(9)连通，压缩机(3)还有蒸汽通道经高温回热器(13)与高温热交换器(7)连通，冷凝器(9)还有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通之后高温蒸发器(8)再有蒸汽通道与第二膨胀机(2)连通，第二膨胀机(2)还有蒸汽通道经高温回热器(13)与高温热交换器(7)连通，高温热交换器(7)还有蒸汽通道与膨胀机(1)连通；高温热 交换器(7)和高温蒸发器(8)还分别有热源介质通道与外部连通，冷凝器(9)还有冷却介质通道与外部连通，混合蒸发器(10)或还有热源介质通道与外部连通，供热器(11)还有被加热介质通道与外部连通，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(5)和第二循环泵(6)并传输动力。
  7. 联合循环动力装置，是在权利要求1-6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(9)有冷凝液管路经循环泵(5)与混合蒸发器(10)连通调整为冷凝器(9)有冷凝液管路经循环泵(5)与低温回热器(14)连通，压缩机(3)增设中间抽汽通道与低温回热器(14)连通，低温回热器(14)再有冷凝液管路经第三循环泵(15)与混合蒸发器(10)连通，形成联合循环动力装置。
  8. 联合循环动力装置，是在权利要求1-7所述的任一一款联合循环动力装置中，增加新增回热器和新增循环泵，将冷凝器(9)有冷凝液管路经第二循环泵(6)与高温蒸发器(8)连通调整为冷凝器(9)有冷凝液管路经第二循环泵(6)与新增回热器(A)连通，压缩机(3)增设中间抽汽通道与新增回热器(A)连通，新增回热器(A)再有冷凝液管路经新增循环泵(B)与高温蒸发器(8)连通，形成联合循环动力装置。
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