WO2021068431A1 - Dispositif de pompe à chaleur à cycle combiné à fluide de travail unique - Google Patents

Dispositif de pompe à chaleur à cycle combiné à fluide de travail unique Download PDF

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Publication number
WO2021068431A1
WO2021068431A1 PCT/CN2020/000238 CN2020000238W WO2021068431A1 WO 2021068431 A1 WO2021068431 A1 WO 2021068431A1 CN 2020000238 W CN2020000238 W CN 2020000238W WO 2021068431 A1 WO2021068431 A1 WO 2021068431A1
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Prior art keywords
regenerator
compressor
medium channel
evaporator
heat
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PCT/CN2020/000238
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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 WO2021068431A1 publication Critical patent/WO2021068431A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/10—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages

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 heat supply, it is divided into two paths-the first path is connected to the heat regenerator through the expander, the second path is connected to the second compressor through the second heat supply, 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 to the heat supply, it is divided into two paths—the first path is connected to the heat regenerator through the expander, the second path is connected to the second compressor through the second heat supply, and the second path is connected to the second compressor through the second heat supply.
  • 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 supply device and then divided into two paths—the first path is connected to the expander, and the second path is connected to the second compressor through the second heat supply device;
  • the second compression 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 way is connected to the expander, the expander and the circulating working medium channel are connected to the expander through the reheater, and the expander and the circulating working medium are connected
  • the passage communicates with the regenerator, and the second path communicates with the second compressor through the second heat supplier;
  • the second compressor also has a circulating working fluid passage through the reheater and the regenerator, 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 through the heat supply and the high temperature regenerator, after which it is divided into two paths-the first path is connected to the regenerator through the expander, and the second path is through the second heat supply device and the second compressor
  • the second compressor also has a circulating working medium channel connected to the heat regenerator. After the regenerator has a condensate pipe 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 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 expander, and the second path is through the second heat supply
  • the second compressor is connected to the second compressor, and the second compressor has a circulating working medium channel that communicates with the regenerator through the third heat supply device.
  • the regenerator has a condensate pipeline that communicates with the evaporator through a throttle valve.
  • the evaporator There is also a circulating working medium channel connected with the regenerator, and the regenerator and a circulating working medium channel are connected with the compressor through the high-temperature regenerator; the heat supply, the second heat supply and the third heat supply are also separately
  • 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 is connected to the high-temperature regenerator through the heat supply and is divided into two paths-the first path is connected to the expander, and the second path is through the second heat supply device Connected with the second compressor;
  • the second compressor also has a circulating working fluid channel connected to the regenerator through the second regenerator and then divided into two paths-the first path is led out from the middle or the end of the regenerator and passed 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, the expander and the circulating working medium channel are connected to the expansion through the reheater
  • the machine communicates with the expander and there is a circulating working medium passage that communicates with the regenerator, and the second passage is connected to the second compressor through the second heat supplier;
  • the second compressor also has a circulating working medium passage that communicates with the reheater 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 heat supply, 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 fluid combined cycle heat pump device is mainly composed of a compressor, an expander, a second compressor, a throttle valve, a heat supply device, a second heat supply device, an evaporator and a regenerator;
  • the compressor has a first A circulating working medium channel is connected to the second heat supplier, the second heat supplier also has a circulating working medium channel that communicates with the regenerator through the expander, and the compressor also has a second circulating working medium channel that communicates with the second heat exchanger through the heat exchanger.
  • the compressor is connected, and the second compressor has a circulating working medium channel connected with the regenerator.
  • the evaporator After the regenerator has a condensate pipeline connected with the evaporator through a throttle valve, the evaporator has a circulating working medium channel and the regenerator.
  • the regenerator also 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, the evaporator also has a low-temperature heat medium channel to communicate with the outside, and the expander Connect the compressor and transmit power to form a single working substance combined cycle heat pump device.
  • the single working fluid combined cycle heat pump device is mainly composed of a compressor, an expander, a second compressor, a throttle valve, a heat supply device, a second heat supply device, an evaporator and a regenerator; the compressor has a first A circulating working medium channel is connected with the second compressor through the heat supply, and the second compressor also has a circulating working medium channel connected with the regenerator.
  • the compressor also has a second circulating working medium channel that communicates with the second heat supplier, the second heat supplier also has a circulating working medium channel that communicates with the heat regenerator through an expander, and the evaporator also has a circulating working medium channel and a heat regenerator.
  • the regenerator also 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, the evaporator also has a low-temperature heat medium channel to communicate with the outside, and the expander Connect the compressor and transmit 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 and new compressor ;
  • the compressor has a circulating working medium channel that communicates with the second compressor through the heat supply, and the second compressor also has a circulating working medium channel that communicates with the regenerator, and then the regenerator has a condensate pipeline that passes through the throttle valve and evaporates
  • the evaporator has a circulating working medium channel which is connected to the regenerator.
  • the regenerator and a circulating working medium channel are respectively connected to the compressor and the new compressor.
  • the new compressor also has a circulating working medium channel and the second The heat supply is connected, and the second heat supply has a circulating working medium channel that communicates with the heat regenerator through the expander; the heat supply and the second heat supply also have a medium to be heated channel that communicates with the outside, and the evaporator has a low temperature
  • the heat medium channel is connected to the outside, and the expander is connected to the compressor and transmits power to form a single working substance combined cycle heat pump device.
  • the single-working-substance combined-cycle heat pump device is a single-working-substance combined-cycle heat pump device described in items 11-13, adding a new heat supply, and the second compressor has a circulating working medium channel
  • the connection with the regenerator is adjusted so that the second compressor has a circulating working medium channel that communicates with the regenerator through the newly added heat supply device, and the newly added heat supply device also communicates with the outside with the heated medium channel, forming a single working medium combined cycle heat pump Device.
  • the single working substance combined cycle heat pump device is a single working substance combined cycle heat pump device described in items 11-13, adding a nozzle and a second regenerator, and the second compressor has a cycle
  • the communication between the working medium channel and the regenerator is adjusted so that the second compressor has a circulating working medium channel that communicates with the regenerator through the second regenerator, and the regenerator is additionally provided with a circulating working medium channel that passes through the nozzle and the second regenerator.
  • the middle intake port is connected with the expander to form a single working fluid combined cycle heat pump device.
  • the single working fluid combined cycle heat pump device is a single working fluid combined cycle heat pump device described in items 11-13, adding a reheater, and connecting the second compressor with a circulating working fluid channel and a return
  • the communication of the heat exchanger is adjusted so that the circulating working medium passage of the second compressor communicates with the heat regenerator through the reheater, and the circulating working medium passage of the second heat supply device is connected to the heat regenerator through the expander and adjusted to the second heat supplier
  • a circulating working medium channel is connected with the expander, the expander and the circulating working medium channel are connected with the expander through the reheater, and the expander and the circulating working medium channel are connected with the 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 1-4, 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 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 1-18, adding a turbine, eliminating the throttle valve, and connecting the regenerator with 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 1-18, which cancels the evaporator and the throttle valve, and cancels the low temperature heat between the evaporator and the outside.
  • 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.
  • Figure 1/17 is the first principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 2/17 is the second principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 3/17 is the third principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 4/17 is the fourth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 5/17 is the fifth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 6/17 is the sixth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 7/17 is the seventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 8/17 is a schematic diagram of the eighth principle thermal system of the single working substance combined cycle heat pump device provided by the present invention.
  • Figure 9/17 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 10/17 is the tenth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 11/17 is the eleventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 12/17 is the twelfth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 13/17 is the 13th principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 14/17 is the 14th principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 15/17 is the 15th principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 16/17 is a diagram of the sixteenth principle thermal system of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 17/17 is the 17th principle thermal system diagram 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 is connected to the heat supply 5, it is divided into two paths-the first path is connected to the heat regenerator 8 through the expander 2, and the second path is connected to the second compressor 3 through the second heat supply 6 and the second compressor 3 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 first path flows through the expander 2 to reduce pressure and then enters the regenerator 8
  • the second path flows through the second heater 6 and releases heat, and flows through the second compressor 3
  • the pressure rises flows through the regenerator 8 to release heat and condenses, flows through the throttle valve 4 to throttling and pressure reduction, 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 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. , Forming 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 boost the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the first path flows through the expander 2 to reduce pressure and then enters the regenerator 8
  • the second path flows through the second heater 6 and releases heat, and 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 heat regenerator 8 through the expander 2 and the second path is connected to the second compressor 3 through the second heat supply 6 ,
  • 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 second path flows through the second heater 6 and releases heat, and 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.
  • the single working substance combined cycle heat pump device shown in Figure 4/17 is realized as follows:
  • 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 with the expander 2, the second path is connected with the second compressor 3 through the second heat supply 6, and the second path is connected to the second compressor 3 through the second heat supply 6
  • 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.
  • the single working substance combined cycle heat pump device shown in Figure 5/17 is realized as follows:
  • the regenerator 8 After 8 is connected, 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. After the heat is released, it is divided into two paths-the first path enters the expander 2 to reduce the pressure to a certain degree, then flows through the reheater 13 to absorb heat, enters the expander 2 to continue the pressure reduction, and then enters the regenerator 8.
  • the second path flows through the second heater 6 and releases heat, flows through the second compressor 3 to increase the pressure, flows through the reheater 13 and the regenerator 8, gradually releases heat and condenses, and flows through the throttle valve 4 to throttle After depressurization, it 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 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 single working substance combined cycle heat pump device shown in Figure 6/17 is realized as follows:
  • 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 expander 2 and the second path is connected to the second heat supply 6 through the second heat supply unit 6
  • 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 divides into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 8, and the second path flows Pass through the second heat supply 6 and release heat, flow through the second compressor 3 to increase the pressure, flow through the regenerator 8 to release heat and condense, flow 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 single working substance combined cycle heat pump device shown in Figure 7/17 is realized as follows:
  • 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 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 expander 2 and then enters the regenerator after the pressure is reduced and the work is done. 8.
  • the second path flows through the second heater 6 and releases heat, flows through the second compressor 3 to increase the pressure and raises the pressure, flows through the regenerator 8 to release heat and condenses, and flows through the throttle valve 4 to throttling and pressure reduction, and then enters
  • 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 single working substance combined cycle heat pump device shown in Figure 8/17 is realized as follows:
  • 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
  • the heat is released by the new expander C, and it flows through the heat supply device 5 and releases heat, and then it is divided into two paths-the first path flows through the expander 2 and then enters the regenerative heat after the pressure is reduced and the work is performed.
  • the second path flows through the second heater 6 and releases heat, flows through the second compressor 3 to increase the pressure and raises the pressure, flows through the regenerator 8 to release heat and condense, and flows through the throttle valve 4 after throttling and pressure reduction Enter the evaporator 7; 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 expander 2 to reduce pressure and then enters the heat regenerator 8.
  • the second path flows through the second heat supply device 6 and releases heat, flows through the second compressor 3 to increase the pressure, and then flows through the heat regenerator.
  • the single working substance combined cycle heat pump device shown in Figure 10/17 is realized as follows:
  • compressor 1 has a first cycle
  • the working medium channel is in communication with the second heat supplier 6,
  • the second heat supplier 6 also has a circulating working medium channel in communication with the regenerator 8 through the expander 2
  • the compressor 1 also has a second circulating working medium channel through the heat supplier 5 is connected to the second compressor 3, and the second compressor 3 has a circulating working medium channel to communicate with the regenerator 8.
  • the regenerator 8 After the regenerator 8 has a condensate pipe connected to the evaporator 7 through the throttle valve 4, the evaporator 7 there is a circulating working medium channel connected with the heat regenerator 8, and the regenerator 8 has a circulating working medium channel connected with the compressor 1.
  • the heat supply 5 and the second heat supply 6 also have a medium to be heated channel and the outside respectively.
  • the evaporator 7 also has a low-temperature heat medium channel to communicate 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 rises, enters the compressor 1 to increase the pressure and rise to a certain level, and then divides into two paths—the first path flows through the second path.
  • Heater 6 releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 8, the second path continues to increase pressure, flows through the heater 5 to release heat, and flows through the second compressor 3 to increase pressure and increase , Flow through the regenerator 8 to release heat and condense, flow through the throttle valve 4 to throttle and reduce pressure and enter 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 The heat supply 5 and the second heat supply 6 obtain the high temperature heat load, the low temperature heat medium provides the 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, forming a simplex Mass combined cycle heat pump device.
  • the single working substance combined cycle heat pump device shown in Figure 11/17 is realized as follows:
  • the evaporator 7 there is a circulating working medium channel connected with the heat regenerator 8, and the regenerator 8 has a circulating working medium channel connected with the compressor 1.
  • the heat supply 5 and the second heat supply 6 also have a medium to be heated channel and the outside respectively.
  • the evaporator 7 also has a low-temperature heat medium channel to communicate 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 rises, and enters the compressor 1 to increase the pressure and rise to a certain level, and then divides into two paths-the first path flows through the heating supply
  • the device 5 releases heat, flows through the second compressor 3 to boost pressure, flows through the regenerator 8 to release heat and condenses, flows through the throttle valve 4 to throttle and reduce the pressure, and enters the evaporator 7, the second path continues to increase the pressure and increase the temperature, It flows through the second heat supply device 6 to release heat, flows through the expander 2 to reduce pressure and enters the regenerator 8; the circulating working fluid that enters the evaporator 7 absorbs heat and vaporizes, and then enters the regenerator 8; the heated medium passes
  • the heat supply 5 and the second heat supply 6 obtain the high temperature heat load, the low temperature heat medium provides the 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
  • the single working substance combined cycle heat pump device shown in Figure 12/17 is realized as follows:
  • the evaporator 7 has a circulating working medium channel which is connected to the regenerator 8, and the regenerator 8 also has a circulating working medium channel which respectively communicates with the compressor 1 and the newly added compressor A, and the newly added compression Machine A also has a circulating working medium channel that communicates with the second heat supplier 6, and the second heat supplier 6 also has a circulating working medium channel that communicates with the regenerator 8 through the expander 2; the heat supplier 5 and the second heat supplier 6 also respectively have a medium to be heated channel communicating with the outside, the evaporator 7 also has a low-temperature heating medium channel 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 increase heat, and then is divided into two paths-the first path flows through the newly added compressor A to increase the pressure and increase the temperature, and flow through the second path.
  • the second heat supply 6 releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 8.
  • the second path flows through the compressor 1 to increase the pressure and heat up, flows through the heat supply 5 to release heat, and flows through the second compression
  • 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 entering 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, and the low temperature heat medium provides low temperature heat load through the evaporator 7, and the external and expander 2 jointly supply the compressor 1, the second compressor 3 and A new compressor A is added to provide power to form a single working substance combined cycle heat pump device.
  • the single working substance combined cycle heat pump device shown in Figure 13/17 is realized as follows:
  • the single working substance combined cycle heat pump device shown in Figure 14/17 is realized as follows:
  • a nozzle and a second regenerator are added to connect the second compressor 3 with a circulating working medium channel and the regenerator 8 It is adjusted that the second compressor 3 has a circulating working medium passage that communicates with the regenerator 8 through the second regenerator 12, and the regenerator 8 is additionally provided with a circulating working medium passage that passes through the nozzle 11 and the second regenerator 12 through the middle inlet
  • the gas port communicates with the expander 2.
  • the single working substance combined cycle heat pump device shown in Figure 15/17 is realized as follows:
  • the single working substance combined cycle heat pump device shown in Figure 16/17 is realized as follows:
  • 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 single working substance combined cycle heat pump device shown in Figure 17/17 is realized as follows:
  • 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
  • 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 heater 5 and releases heat, and then is divided into two paths—the first path flows through the expander 2 to reduce pressure and then enters the regenerator 8, and the second path flows through the second path.
  • the heat supplier 6 releases heat, flows through the second compressor 3 to increase the pressure, and flows through the regenerator 8 to release heat and condense, and then discharges to the outside; the heated medium obtains the high temperature heat load through the heat supplier 5 and the second heat supplier 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.
  • 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)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

La présente invention concerne une pompe à chaleur à cycle combiné à fluide de travail unique, appartenant au domaine technique de la réfrigération et des pompes à chaleur. Un compresseur (1) est divisé en deux trajets après avoir été en communication avec un dispositif d'alimentation en chaleur (5) au moyen d'un canal de fluide de travail circulant, le premier trajet étant en communication avec un régénérateur de chaleur (8) au moyen d'une machine de détente (2), et le second trajet étant en communication avec un second compresseur (3) au moyen d'un second dispositif d'alimentation en chaleur (6), le second compresseur (3) étant en outre en communication avec le régénérateur de chaleur (8) au moyen du canal de fluide de travail circulant, et le régénérateur de chaleur (8) est ensuite en communication avec un évaporateur (7) au moyen d'une conduite de condensat par l'intermédiaire d'un robinet d'étranglement (4) ; l'évaporateur (7) est en outre en communication avec le régénérateur de chaleur (8) au moyen du canal de fluide de travail circulant ; le régénérateur de chaleur (8) est en outre en communication avec le compresseur (1) au moyen du canal de fluide de travail circulant ; le dispositif d'alimentation en chaleur (5) et le second dispositif d'alimentation en chaleur (6) sont respectivement en communication avec l'extérieur au moyen d'un canal de fluide chauffé ; l'évaporateur (7) est en outre en communication avec l'extérieur au moyen d'un canal de fluide à basse température ; et la machine de détente (2) est raccordée au compresseur (1) et transmet de l'énergie, et le dispositif de pompe à chaleur à cycle combiné à fluide de travail unique est ainsi formé.
PCT/CN2020/000238 2019-10-08 2020-10-09 Dispositif de pompe à chaleur à cycle combiné à fluide de travail unique WO2021068431A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2022193795A1 (fr) * 2021-03-14 2022-09-22 李华玉 Appareil de pompe à chaleur à cycle combiné à entraînement thermique de premier type

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
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
WO2012063275A1 (fr) * 2010-11-12 2012-05-18 Gianluca Valenti Procédé et système de conversion d'énergie thermique, fournie à partir d'une source de chaleur à température variable, en énergie mécanique
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
CN108151361A (zh) * 2016-11-24 2018-06-12 李华玉 第一类热驱动压缩式热泵
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
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
WO2012063275A1 (fr) * 2010-11-12 2012-05-18 Gianluca Valenti Procédé et système de conversion d'énergie thermique, fournie à partir d'une source de chaleur à température variable, en énergie mécanique
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
CN108151361A (zh) * 2016-11-24 2018-06-12 李华玉 第一类热驱动压缩式热泵
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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