WO2021072992A1 - Dispositif de pompe à chaleur à circulation combinée de fluide de travail unique - Google Patents

Dispositif de pompe à chaleur à circulation combinée de fluide de travail unique Download PDF

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Publication number
WO2021072992A1
WO2021072992A1 PCT/CN2020/000256 CN2020000256W WO2021072992A1 WO 2021072992 A1 WO2021072992 A1 WO 2021072992A1 CN 2020000256 W CN2020000256 W CN 2020000256W WO 2021072992 A1 WO2021072992 A1 WO 2021072992A1
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Prior art keywords
regenerator
compressor
heat supply
heat
evaporator
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PCT/CN2020/000256
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English (en)
Chinese (zh)
Inventor
李华玉
李鸿瑞
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李华玉
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Publication of WO2021072992A1 publication Critical patent/WO2021072992A1/fr

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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
    • 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
    • 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

Definitions

  • the invention belongs to the technical field of refrigeration and heat pumps.
  • Cold demand, heat demand and power demand are common in human life and production; among them, the use of mechanical energy to convert heat energy is an important way to achieve cooling and efficient heating.
  • the temperature of the cooling medium changes during refrigeration, and the temperature of the heated medium often changes during heating; when using mechanical energy to heat, often the heated medium has the dual characteristics of variable temperature and high temperature at the same time, which makes the use of a single Thermal cycle theory has many problems such as unreasonable performance index, low heating parameters, high compression ratio, and too much working pressure when it realizes cooling or heating.
  • the temperature difference between the working fluid and the heated medium loses a lot; at the same time, the condensate loses a lot in the depressurization process or is used
  • the cost is high; when the supercritical working condition is adopted, the compression ratio is high, which makes the manufacturing cost of the compressor high and the safety is reduced; in both cases, it is difficult to eliminate the side effects of obtaining low-temperature heat load.
  • the gas compression heat pump device based on the reverse Brayton cycle requires a relatively low compression, which limits the improvement of heating parameters; at the same time, the low temperature process is variable temperature, which makes the low temperature link of cooling or heating often large The temperature difference loss, the performance index is not ideal.
  • the present invention proposes a single working substance combined cycle heat pump device.
  • the main purpose of the present invention is to provide a single working substance combined cycle heat pump device.
  • the specific content of the invention is described as follows:
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator and regenerator;
  • the compressor has a cycle After the working fluid channel is connected to the heater, it is divided into two paths—the first path is connected to the regenerator via the second heat supply and expander, the second path is connected to the second compressor, and the second compressor also has a circulation process.
  • the regenerator After the mass channel is connected to the regenerator, the regenerator has a condensate pipeline to communicate with the evaporator through a throttle valve.
  • the evaporator also has a circulating working medium channel that communicates with the regenerator, and the regenerator also has a circulating working medium channel that communicates with the evaporator.
  • the compressor is connected; the heat supply and the second heat supply are respectively connected to the outside with the heated medium channel, and the evaporator also has the low-temperature heat medium channel to communicate with the outside.
  • the expander is connected to the compressor and transmits power to form a single working fluid combination Circulating heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator, regenerator and third heat supply Composition; after the compressor has a circulating working medium channel connected with the heat supply, it is divided into two paths-the first path is connected to the heat regenerator through the second heat supply and expander, the second path is connected to the second compressor, and the second path is connected to the second compressor.
  • the compressor also has a circulating working medium channel that is connected to the regenerator through the third heat supply, and then the regenerator has a condensate pipeline that communicates with the evaporator through a throttle valve, and the evaporator also has a circulating working medium channel and a regenerator.
  • the regenerator also has a circulating working medium channel to communicate with the compressor; the heat supply, the second heat supply and the third heat supply also each have a heated medium channel to communicate with the outside, and the evaporator also has a low temperature heat medium channel Connected to the outside, the expander is connected to the compressor and transmits power to form a single working substance combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator, regenerator, nozzle and second return Composed of the heat exchanger;
  • the compressor has a circulating working medium channel connected to the heat supplier and then divided into two paths-the first path communicates with the expander through the second heat supplier, the second path communicates with the second compressor, and the second compressor
  • the machine also has a circulating working medium channel that is connected to the regenerator through the second regenerator and then divided into two paths-the first path is drawn from the middle or the end of the regenerator and passes through the nozzle and the second regenerator before passing through the middle.
  • the inlet port is connected to the expander, and the second path is led from the end of the regenerator to the evaporator through the throttle valve.
  • the evaporator also has a circulating working medium channel connected with the regenerator, and the expander also has a circulating working medium channel with The regenerator is connected, and the regenerator has a circulating working medium channel to communicate with the compressor; the heat supply and the second heat supply also have a heated medium channel to communicate with the outside, and the evaporator has a low-temperature heat medium channel to communicate with the outside.
  • the expander is connected to the compressor and transmits power to form a single working fluid combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator, regenerator and reheater;
  • the compressor has a circulating working medium channel connected to the heater, it is divided into two paths-the first path is connected to the expander through the second heat supplier, and the expander and the circulating working medium channel are connected to the expander and expanded through the reheater.
  • the machine also has a circulating working medium channel connected with the regenerator, the second path is connected with the second compressor, and the second compressor also has a circulating working medium channel connected with the regenerator through the reheater, after which there is condensate in the regenerator.
  • the pipeline is connected to the evaporator through a throttle valve.
  • the evaporator also has a circulating working medium channel to communicate with the regenerator, and the regenerator also has a circulating working medium channel to communicate with the compressor; the heat supply and the second heat supply are also separate There is a channel for the heated medium to communicate with the outside, and the evaporator also has a channel for a low-temperature heat medium to communicate with the outside.
  • the expander is connected to the compressor and transmits power to form a single working fluid combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator, regenerator and high temperature regenerator ;
  • Compressor has a circulating working medium channel that is connected to the high-temperature regenerator through the heat supply and is divided into two paths-the first path is connected to the regenerator through the second heat supply and expander, and the second path is connected to the second compressor
  • the second compressor also has a circulating working medium channel connected to the heat regenerator.
  • the regenerator has a condensate pipeline connected to the evaporator through a throttle valve
  • the evaporator also has a circulating working medium channel connected to the regenerator.
  • the regenerator also has a circulating working medium channel that communicates with the compressor through the high-temperature regenerator; the heat supply and the second heat supply also have a heated medium channel that communicates with the outside, and the evaporator has a low-temperature heat medium channel that communicates with the outside.
  • the expander is connected to the compressor and transmits power to form a single working fluid combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator, regenerator, third heat supply and Composed of a high-temperature regenerator;
  • the compressor has a circulating working fluid channel that is connected to the high-temperature regenerator through the heat supply and is divided into two paths-the first path is connected to the regenerator through the second heat supply and expander, and the second The second compressor is connected to the second compressor.
  • the second compressor also has a circulating working fluid channel that communicates with the regenerator through the third heat supply device. After the regenerator, there is a condensate pipeline that communicates with the evaporator through a throttle valve.
  • the heating medium channel is connected to the outside, and the evaporator also has a low-temperature heating medium channel to communicate with the outside.
  • the expander is connected to the compressor and transmits power to form a single working substance combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator, regenerator, nozzle, second return Composed of a heat exchanger and a high-temperature regenerator;
  • the compressor has a circulating working medium channel that communicates with the high-temperature regenerator through the heat supply and is divided into two paths—the first path is connected to the expander through the second heat supply, and the second path Connected with the second compressor, the second compressor also has a circulating working medium channel through the second regenerator and after the regenerator is connected, it is divided into two paths-the first path leads from the middle or the end of the regenerator and passes through the nozzle After connecting with the second regenerator, it is connected to the expander through the intermediate inlet port.
  • the second path is led out from the end of the regenerator and communicated with the evaporator through the throttle valve.
  • the evaporator also has a circulating working medium channel that communicates with the regenerator.
  • the expander also has a circulating working medium channel connected to the heat regenerator, and the regenerator has a circulating working medium channel connected to the compressor through the high-temperature regenerator; the heat supply and the second heat supply also have respectively heated medium channels Connected to the outside, the evaporator also has a low-temperature heat medium channel to communicate with the outside, and the expander is connected to the compressor and transmits power to form a single working fluid combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, second heat supply, evaporator, regenerator, reheater and high temperature recovery Composed of the heat exchanger;
  • the compressor has a circulating working medium channel through the heat supply and the high-temperature regenerator, and then divided into two paths-the first way is connected to the expander through the second heat supplier, and the expander also has a circulating working medium channel
  • the reheater communicates with the expander and the expander also has a circulating working medium channel that communicates with the heat regenerator, the second path is connected to the second compressor, and the second compressor also has a circulating working medium channel that communicates with the heat regenerator through the reheater.
  • the condensate pipeline is connected to the evaporator through the throttle valve.
  • the evaporator also has a circulating working medium channel connected to the regenerator, and the regenerator also has a circulating working medium channel through the high-temperature regenerator.
  • the compressor is connected; the heat supply and the second heat supply are respectively connected to the outside with the heated medium channel, and the evaporator also has the low-temperature heat medium channel to communicate with the outside.
  • the expander is connected to the compressor and transmits power to form a single working fluid combination Circulating heat pump device.
  • the single-working-substance combined-cycle heat pump device is one of the single-working-substance combined-cycle heat pump devices described in items 1-8, adding a new compressor and a new heater, and the compressor has a cycle
  • the communication between the working medium channel and the heater is adjusted so that the compressor has a circulating working medium channel that communicates with the newly added compressor through the newly added heater, and the newly added compressor has a circulating working medium channel that communicates with the heater, and the additional heat is supplied
  • the device also has a heated medium channel that communicates with the outside to form a single working substance combined cycle heat pump device.
  • the single-working-substance combined-cycle heat pump device is one of the single-working-substance combined-cycle heat pump devices described in items 1-8, adding a new heater and a new expander, and the compressor has a cycle
  • the communication between the working fluid channel and the heat supply is adjusted so that the compressor has a circulating working fluid channel that is connected to the newly added expander through the newly added heat supply device, and the newly added expander has a circulating working fluid channel that communicates with the heat supply, and the new expander is added
  • the single-working-substance combined-cycle heat pump device is any one of the single-working-substance combined-cycle heat pump devices described in items 1-4, canceling the heated medium channel connecting the second heater with the outside, and returning
  • the heat exchanger has a circulating working medium connected with the compressor and adjusted so that the regenerator has a circulating working medium connected with the compressor via the second heat supply device to form a single working medium combined cycle heat pump device.
  • the single-working-substance combined cycle heat pump device is any one of the single-working-substance combined cycle heat pump devices described in items 5-8, canceling the heated medium channel connecting the second heater with the outside, and returning
  • the heat exchanger has a circulating working medium through the high-temperature regenerator to communicate with the compressor, and is adjusted to a regenerator with a circulating working medium that communicates with the compressor through the second heat supplier and the high-temperature regenerator to form a single working medium combined cycle heat pump device.
  • the single working substance combined cycle heat pump device is any one of the single working substance combined cycle heat pump devices described in items 1-12.
  • the throttle valve is eliminated, the turbine is added, and the regenerator has a condensate pipeline.
  • the throttle valve is connected to the evaporator and adjusted so that the regenerator has a condensate pipeline connected to the evaporator via a turbine, and the turbine is connected to the compressor and transmits power to form a single working fluid combined cycle heat pump device.
  • the single working substance combined cycle heat pump device is any one of the single working substance combined cycle heat pump devices described in items 1-12.
  • the evaporator and the throttle valve are eliminated, and the low temperature heat between the evaporator and the outside is eliminated.
  • Medium channel adjust the evaporator's circulating working medium channel to communicate with the heat regenerator, and adjust the external steam channel to communicate with the heat regenerator, and adjust the condensate pipeline of the heat regenerator to communicate with the evaporator through the throttle valve to adjust to the heat regenerator
  • a condensate pipeline is connected to the outside to form a single working fluid combined cycle heat pump device.
  • the single-working-substance combined-cycle heat pump device is one of the single-working-substance combined-cycle heat pump devices described in items 1-12, adding a dual-energy compressor and replacing the compressor, adding an expansion speeder and replacing it Expander, add a new nozzle and replace the throttle valve to form a single working fluid combined cycle heat pump device.
  • Figure 1/12 is the first principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 2/12 is the second principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 3/12 is the third principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 4/12 is the fourth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 5/12 is the fifth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 6/12 is the sixth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 7/12 is the seventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 8/12 is a schematic diagram of the eighth principle thermal system of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 9/12 is a diagram of the ninth principle thermal system of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 10/12 is the tenth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 11/12 is the eleventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 12/12 is a diagram of the twelfth principle thermal system of the single working fluid combined cycle heat pump device provided by the present invention.
  • compressor 1 has a circulating working medium After the passage communicates with the heater 5, it is divided into two paths—the first path communicates with the heat regenerator 8 through the second heater 6 and the expander 2, the second path communicates with the second compressor 3, and the second compressor 3
  • the regenerator 8 After the circulating working medium channel is connected with the heat regenerator 8, the regenerator 8 has a condensate pipe connected with the evaporator 7 through the throttle valve 4, and the evaporator 7 also has a circulating working medium channel connected with the regenerator 8.
  • the regenerator 8 also has a circulating working medium channel that communicates with the compressor 1; the heat supplier 5 and the second heat supplier 6 also have a heated medium channel that communicates with the outside, and the evaporator 7 also has a low-temperature heat medium channel that communicates with the outside.
  • the expander 2 is connected to the compressor 1 and transmits power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the compressor 1 to boost the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the machine 3 boosts pressure, heats up, flows through the regenerator 8 to release heat and condenses, flows through the throttle valve 4 to throttle and reduce pressure, and enters the evaporator 7; the circulating working fluid that enters the evaporator 7 absorbs heat and vaporizes, and then enters the regenerator 8 ;
  • the heated medium obtains the high temperature heat load through the heat supply 5 and the second heat supply 6, the low temperature heat medium provides the low temperature heat load through the evaporator 7, and the outside and the expander 2 provide the compressor 1 and the second compressor 3 together Power, forming a single working substance combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the compressor 1 to boost the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the first path flows through the second heater 6 and releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 8, the second path flows through the second compressor 3 Boost temperature, flow through the regenerator 8 to release heat and condense, flow through the turbine 9 to reduce pressure and enter the evaporator 7; the circulating working fluid that enters the evaporator 7 absorbs heat and vaporizes, and then enters the regenerator 8; is heated
  • the medium obtains the high temperature heat load through the heat supply 5 and the second heat supply 6, the low temperature heat medium provides low temperature heat load through the evaporator 7, and the outside, the expander 2 and the turbine 9 jointly provide the compressor 1 and the second compressor 3. Power, forming a single working substance combined cycle heat pump device.
  • the machine 1 has a circulating working medium channel connected to the heat supply 5 and then divided into two paths-the first path is connected to the regenerator 8 through the second heat supply 6 and the expander 2, and the second path is connected to the second compressor 3 ,
  • the second compressor 3 also has a circulating working medium channel that communicates with the regenerator 8 through the third heat supplier 10, and then the regenerator 8 has a condensate pipeline that communicates with the evaporator 7 through the throttle valve 4, and the evaporator 7
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the compressor 1 to boost the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the first path flows through the second heater 6 and releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 8, the second path flows through the second compressor 3 Boost temperature, flow through the third heat supply 10 and regenerator 8 to gradually release heat and condense, flow through the throttle valve 4 throttling and pressure reduction, and enter the evaporator 7; the circulating working fluid entering the evaporator 7 absorbs heat and vaporizes , Then enter the regenerator 8; the heated medium obtains the high temperature heat load through the heat supply 5, the second heat supply 6 and the third heat supply 10, and the low temperature heat medium provides the low temperature heat load through the evaporator 7, external and expansion
  • the engine 2 provides power to the compressor 1 and the second compressor 3 together to form a single working fluid combined cycle heat pump device.
  • Compressor 1 has a circulating working medium channel and is connected to heat supply 5 and then divided into two paths-the first path is connected to the expander 2 through the second heat supply 6, the second path is connected to the second compressor 3, and the second path is connected to the second compressor 3.
  • the second compressor 3 also has a circulating working medium channel through the second regenerator 12 and then is divided into two paths after being connected to the regenerator 8-the first path is led out from the middle or the end of the regenerator 8 and passed through the nozzle 11 and the second The regenerator 12 then communicates with the expander 2 through the intermediate inlet port.
  • the second path is led from the end of the regenerator 8 and communicates with the evaporator 7 through the throttle valve 4, and the evaporator 7 also has a circulating working medium channel and a return
  • the heat exchanger 8 is connected, the expander 2 also has a circulating working medium passage that communicates with the heat regenerator 8, and the regenerator 8 also has a circulating working medium passage that communicates with the compressor 1; the heat supplier 5 and the second heat supplier 6 are also connected separately
  • the evaporator 7 also has a channel for low-temperature heating medium to communicate with the outside
  • the expander 2 is connected to the compressor 1 and transmits power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the compressor 1 to boost the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5. And release heat, and then divided into two paths-the first path flows through the second heat supply 6 and releases heat, flows through the expander 2 to reduce pressure, and then enters the regenerator 8, the second path flows through the second compression
  • the machine 3 increases the pressure and heats up, flows through the second regenerator 12 and releases heat, and then enters the regenerator 8 to release heat and is partially or completely condensed, and then divided into two paths-the first path flows through the nozzle 11 to reduce the pressure and increase the pressure.
  • the valve 4 throttling and depressurizing enters the evaporator 7; the circulating working fluid entering the evaporator 7 absorbs heat and vaporizes, and then enters the regenerator 8; the heated medium passes through the heat supply 5 and the second heat supply 6 to obtain high temperature heat load ,
  • the low-temperature heat medium provides low-temperature heat load through the evaporator 7, and the outside and the expander 2 together provide power to the compressor 1 and the second compressor 3 to form a single working medium combined cycle heat pump device.
  • the regenerator 8 has a condensate pipe connected to the evaporator 7 through the throttle valve 4, and the evaporator 7 has a circulating working medium channel that communicates with the regenerator 8, and the regenerator 8 also has a circulating working medium channel.
  • the heat supplier 5 and the second heat supplier 6 respectively have a medium to be heated channel communicating with the outside
  • the evaporator 7 also has a low-temperature heat medium channel communicating with the outside
  • the expander 2 is connected to the compressor 1 and transmitted power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the compressor 1 to boost the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the first path flows through the second heater 6 and releases heat, enters the expander 2 to reduce the pressure to a certain degree, and then flows through the reheater 13 to absorb heat and enters the expander 2 to continue
  • the pressure is reduced to work, and then it enters the regenerator 8, the second path flows through the second compressor 3 to increase the pressure, and flows through the reheater 13 and the regenerator 8 to gradually release heat and condense, and flow through the throttle valve 4 to throttle
  • the evaporator 7 the circulating working fluid that enters the evaporator 7 absorbs heat and vaporizes, and then enters the regenerator 8; the heated medium passes through the heat supply 5 and the second heat supply 6 to obtain high temperature heat load, low temperature heat
  • the medium provides low-temperature heat load through the evaporator 7, and the outside and the expander 2 jointly provide power to the compressor 1 and the second compressor 3 to form a single working medium combined cycle heat pump device.
  • the circulating working fluid channel is connected to the high temperature regenerator 14 through the heat supply 5 and then divided into two paths-the first path is connected to the heat regenerator 8 through the second heat supply 6 and the expander 2 and the second path is connected to the second heat supply unit 6 and the expander.
  • the second compressor 3 is connected, and the second compressor 3 has a circulating working medium channel connected with the regenerator 8.
  • the regenerator 8 has a condensate pipeline connected with the evaporator 7 through the throttle valve 4
  • the evaporator 7 has The circulating working medium channel is in communication with the regenerator 8.
  • the regenerator 8 also has a circulating working medium channel in communication with the compressor 1 through the high-temperature regenerator 14; the heat supply 5 and the second heat supply 6 also each have a heated medium
  • the passage communicates with the outside, the evaporator 7 also has a low-temperature heat medium passage communicating with the outside, and the expander 2 is connected to the compressor 1 and transmits power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and heat up, flows through the high-temperature regenerator 14 and absorbs heat, and then enters the compressor 1 to increase the pressure and increase the temperature; compressor 1
  • the discharged circulating working fluid flows through the heat supply 5 and the high-temperature regenerator 14 to gradually release heat, and then is divided into two paths-the first path flows through the second heat supply 6 and releases heat, and flows through the expander 2 to reduce the pressure.
  • the work sum enters the regenerator 8, the second path flows through the second compressor 3 to increase the pressure, flows through the regenerator 8 to dissipate heat and condense, and flows through the throttle valve 4 to throttle and reduce the pressure and enter the evaporator 7; enter the evaporation
  • the circulating working fluid of the device 7 absorbs heat and vaporizes, and then enters the regenerator 8.
  • the heated medium obtains high temperature heat load through the heat supply device 5 and the second heat supply device 6, and the low temperature heat medium provides low temperature heat load through the evaporator 7. Together with the expander 2 to provide power to the compressor 1 and the second compressor 3 to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the newly added heating Heater B and release heat, flow through the newly-added compressor A to increase the pressure, flow through the heater 5 and release heat, and then divide into two paths-the first path flows through the second heater 6 and releases heat and flows through The expander 2 reduces pressure to perform work and enters the regenerator 8.
  • the second path flows through the second compressor 3 to increase the pressure and increase the pressure, flows through the regenerator 8 to release heat and condense, and flows through the throttle valve 4 to throttle and reduce pressure and enter
  • the low-temperature heat medium provides low-temperature heat load through the evaporator 7, and the outside and the expander 2 jointly provide power to the compressor 1, the second compressor 3 and the newly added compressor A, forming a single working medium combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the newly added heating Heater B and release heat, flow through the newly added expander C to reduce pressure, and then flow through the heater 5 and release heat, and then divided into two paths-the first path flows through the second heat provider 6 and releases heat and flows The pressure is reduced by the expander 2 and enters the regenerator 8.
  • the second path flows through the second compressor 3 to increase the pressure and increase the pressure, flows through the regenerator 8 to release heat and condense, and flows through the throttle valve 4 to throttle and reduce the pressure.
  • the circulating working fluid entering the evaporator 7 absorbs heat and vaporizes, and then enters the regenerator 8; the heated medium obtains high temperature heat load through the heat supply 5, the second heat supply 6 and the newly added heat supply B ,
  • the low-temperature heat medium provides low-temperature heat load through the evaporator 7, and the outside, the expander 2 and the newly added expander C jointly provide power to the compressor 1 and the second compressor 3 to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 7 enters the regenerator 8 to absorb heat and heat up, flows through the high-temperature regenerator 14 and absorbs heat, and then enters the compressor 1 to increase the pressure and increase the temperature; compressor 1
  • the discharged circulating working fluid flows through the newly-added heater B and releases heat, flows through the newly-added compressor A to increase the pressure and heats up, flows through the heater 5 and the high-temperature regenerator 14 to gradually release heat, and then divides into two paths——
  • the first path flows through the second heater 6 and releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 8, and the second path flows through the second compressor 3 to increase the pressure and increase the temperature and flow through the regenerator.
  • the medium to be heated through which the second heat supplier 6 communicates with the outside is eliminated, and the regenerator 8 has a circulating working fluid communicating with the compressor 1 and adjusted to return
  • the heat exchanger 8 has a circulating working fluid that communicates with the compressor 1 through the second heat supplier 6; the circulating working fluid discharged from the regenerator 8 flows through the second heat supplier 6 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the temperature.
  • the circulating working fluid in the external steam state enters the regenerator 8
  • the circulating working fluid discharged from the expander 2 enters the regenerator 8, and the two circulating working fluids absorb heat and heat up and then enter the compressor 1 to increase the pressure and increase the pressure
  • the circulating working fluid discharged from the compressor 1 flows through the heat supply device 5 and releases heat, and then is divided into two paths-the first path flows through the second heat supply device 6 to release heat, flows through the expander 2 to perform work and enters the return path.
  • Heater 8 the second path flows through the second compressor 3 to boost the pressure, flows through the regenerator 8 to release heat and condense and discharge to the outside; the heated medium obtains high temperature heat load through the heat supply device 5 and the second heat supply device 6 ,
  • the external steam provides low-temperature heat load through the in and out process, and the external and expander 2 together provide power to the compressor 1 and the second compressor 3 to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged by the expansion speed increaser E and the evaporator 7 enters the regenerator 8 to absorb heat and increase the temperature, and then enters the dual-energy compressor D to increase the pressure and increase the speed and decrease the speed; the dual-energy compressor D discharges
  • the circulating working fluid flows through the heat supply device 5 and releases heat, and then is divided into two paths-the first path flows through the second heat supply device 6 and releases heat, and flows through the expansion speed increaser E to reduce pressure and perform work and increase speed and enter Regenerator 8, the second path flows through the compressor 3 to increase the pressure and temperature, flows through the regenerator 8 to release heat and condense, and flows through the newly added nozzle F to decrease the pressure and increase the speed and enter the evaporator 7; enter the cycle of the evaporator 7
  • the working fluid absorbs heat and vaporizes, and then enters the regenerator 8; the heated medium obtains the high temperature heat load through the heat supply 5 and the second heat supply 6, and the low temperature heat medium provides the low temperature heat load through the
  • a single working fluid is conducive to production and storage; reduces operating costs and improves the flexibility of cycle adjustment
  • the low-pressure operation mode is adopted in the high-temperature heating zone to alleviate or solve the contradiction between the performance index, circulating medium parameters and the pressure and temperature resistance of pipes in traditional refrigeration and heat pump devices.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

La présente invention concerne un dispositif de pompe à chaleur à circulation combinée de fluide de travail unique, qui appartient au domaine technique de la réfrigération et des pompes à chaleur. Un compresseur (1) est pourvu d'un canal de circulation de fluide de travail pour communiquer avec un dispositif de chauffage (5) avant de se diviser en deux trajets, un premier trajet passant à travers un second dispositif de chauffage (6) et un détendeur (2) et communiquant avec un régénérateur (8), et un second trajet communiquant avec un second compresseur (3) ; le second compresseur (3) est également pourvu d'un canal de circulation de fluide de travail qui communique avec le régénérateur (8), et le régénérateur (8) est ensuite pourvu d'une conduite de condensat qui passe à travers un robinet d'étranglement (4) et communique avec un évaporateur (7) ; l'évaporateur (7) est également pourvu d'un canal de circulation de fluide de travail qui communique avec le régénérateur (8), et le régénérateur (8) est également pourvu d'un canal de circulation de fluide de travail qui communique avec le compresseur (1) ; le dispositif de chauffage (5) et le second dispositif de chauffage (6) sont chacun pourvus d'un canal de fluide chauffé qui communique avec l'extérieur ; l'évaporateur (7) est en outre pourvu d'un canal de fluide caloporteur à basse température qui communique avec l'extérieur ; et le détendeur (2) est raccordé au compresseur (1) et transmet une force d'entraînement pour former un dispositif de pompe à chaleur à circulation combinée de fluide de travail unique.
PCT/CN2020/000256 2019-10-17 2020-10-16 Dispositif de pompe à chaleur à circulation combinée de fluide de travail unique WO2021072992A1 (fr)

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CN201911010479.6 2019-10-17
CN201911010479 2019-10-17
CN201911010658 2019-10-19
CN201911010658.X 2019-10-19

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745768A (en) * 1987-08-27 1988-05-24 The Brooklyn Union Gas Company Combustion-powered refrigeration with decreased fuel consumption
JPS6454177A (en) * 1987-08-26 1989-03-01 Toshiba Corp Air conditioner
JPH03125863A (ja) * 1989-10-06 1991-05-29 Matsushita Electric Ind Co Ltd ２段圧縮冷凍サイクル装置
CN104848574A (zh) * 2015-05-13 2015-08-19 西安交通大学 一种喷射器增效的分凝式蒸气压缩制冷循环系统
CN107893685A (zh) * 2016-10-12 2018-04-10 李华玉 单工质蒸汽联合循环与联合循环蒸汽动力装置
CN108119195A (zh) * 2016-12-20 2018-06-05 李华玉 联合循环动力装置
CN110345690A (zh) * 2019-07-30 2019-10-18 西安交通大学 用于双温电冰箱的双喷射器增效制冷循环系统及工作方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6454177A (en) * 1987-08-26 1989-03-01 Toshiba Corp Air conditioner
US4745768A (en) * 1987-08-27 1988-05-24 The Brooklyn Union Gas Company Combustion-powered refrigeration with decreased fuel consumption
JPH03125863A (ja) * 1989-10-06 1991-05-29 Matsushita Electric Ind Co Ltd ２段圧縮冷凍サイクル装置
CN104848574A (zh) * 2015-05-13 2015-08-19 西安交通大学 一种喷射器增效的分凝式蒸气压缩制冷循环系统
CN107893685A (zh) * 2016-10-12 2018-04-10 李华玉 单工质蒸汽联合循环与联合循环蒸汽动力装置
CN108119195A (zh) * 2016-12-20 2018-06-05 李华玉 联合循环动力装置
CN110345690A (zh) * 2019-07-30 2019-10-18 西安交通大学 用于双温电冰箱的双喷射器增效制冷循环系统及工作方法

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