WO2021068428A1 - Dispositif pompe à chaleur à cycle combiné à fluide de travail unique - Google Patents

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

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Publication number
WO2021068428A1
WO2021068428A1 PCT/CN2020/000233 CN2020000233W WO2021068428A1 WO 2021068428 A1 WO2021068428 A1 WO 2021068428A1 CN 2020000233 W CN2020000233 W CN 2020000233W WO 2021068428 A1 WO2021068428 A1 WO 2021068428A1
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Prior art keywords
regenerator
compressor
heat
medium channel
expander
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PCT/CN2020/000233
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English (en)
Chinese (zh)
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李华玉
李鸿瑞
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李华玉
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Publication of WO2021068428A1 publication Critical patent/WO2021068428A1/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
    • F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders

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:
  • the single working fluid combined cycle heat pump device is mainly composed of a compressor, an expander, a throttle valve, a heat supply device, an evaporator, and a regenerator; the compressor has a circulating working fluid channel that is connected to the heat supply device and is divided into two Path-the first path is connected to the regenerator through the expander, and the second path is directly connected to the regenerator, and then the regenerator has a condensate pipeline connected to the evaporator through a throttle valve, and the evaporator has a circulating working fluid.
  • the channel is connected to the heat regenerator, and the regenerator has a circulating working medium channel that communicates with the compressor; the heater also has a heated medium channel that communicates with the outside, the evaporator also has a low-temperature heat medium channel that communicates with the outside, and the expander is connected to compress
  • the machine and transmission power form a single working substance combined cycle heat pump device.
  • a single working fluid combined cycle heat pump device is mainly composed of a compressor, an expander, a throttle valve, a heat supply device, an evaporator, a regenerator and a second heat supply device; the compressor has a circulating working fluid channel and a supply After the heat exchanger is connected, it is divided into two paths—the first path is connected to the heat regenerator through the expander, and the second path is connected to the heat regenerator through the second heat supplier.
  • the evaporator is connected, and the evaporator has a circulating working medium channel connected with the heat regenerator, and the regenerator has a circulating working medium channel connected with the compressor; the heat supply and the second heat supply also have a heated medium channel and the outside, respectively.
  • 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, throttle valve, heat supply, evaporator, regenerator, nozzle and second regenerator; the compressor has circulating working fluid After the passage is connected to the heat supply, it is divided into two paths—the first path is connected to the expander, the second path is connected to the regenerator through the second regenerator, and then divided into two paths—the first path is from the middle of the regenerator or The end is led out through the nozzle and the second regenerator and then connected to the expander through the middle inlet port. The second way is led out from the end of the regenerator and connected to the evaporator through the throttle valve, and the expander has a circulating working fluid.
  • the channel is connected to the heat regenerator; the evaporator has a circulating working medium channel that communicates with the heat regenerator, and the regenerator has a circulating working medium channel that communicates with the compressor; the heat supplier also has a heated medium channel that communicates with the outside, and the evaporator There is also a low-temperature heat medium channel that communicates with the outside, and the expander is connected to the compressor and transmits power to form a single working substance combined cycle heat pump device.
  • Single working medium combined cycle heat pump device which is mainly composed of compressor, expander, throttle valve, heat supply device, evaporator, regenerator and reheater; compressor has cycle working medium channel and heat supply device After connecting, it is divided into two paths-the first path 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 channel are connected to the regenerator, and the second way is connected to the regenerator.
  • the regenerator After the reheater is connected to the regenerator, the regenerator has a condensate pipeline connected to the evaporator through a throttle valve.
  • the evaporator also has a circulating working medium channel that communicates with the regenerator, and the regenerator has a circulating working medium channel.
  • the heat supply device also has a heated medium channel connected to 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 fluid combined cycle heat pump device.
  • the single working fluid combined cycle heat pump device is mainly composed of compressor, expander, throttle valve, heat supply device, evaporator, regenerator and high temperature regenerator; the compressor has a circulating working fluid channel to supply heat After communicating with the high-temperature regenerator, it is divided into two paths-the first path is connected with the regenerator through the expander, and the second path is directly connected with the regenerator. After that, the regenerator has a condensate pipeline through the throttle valve and evaporates.
  • the evaporator also has a circulating working medium channel that communicates with the regenerator, and the regenerator has a circulating working medium channel that communicates with the compressor through the high-temperature regenerator; the heater also has a heated medium channel that communicates with the outside to evaporate.
  • the device also has a low-temperature heat medium channel that communicates with the outside, and 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, throttle valve, heat supply, evaporator, regenerator, second heat supply and high temperature regenerator; the compressor has a cycle After the working fluid channel is connected to the high-temperature regenerator through 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 heat regenerator through the second heat supply, and then the regenerator is connected again.
  • a condensate pipeline is connected to the evaporator through a throttle valve, and the evaporator 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 compressor through the high-temperature regenerator;
  • the heating medium and the second heat supply device are respectively connected to the outside with a medium to be heated, and the evaporator also has a low-temperature heat medium passage to communicate with the outside.
  • the expander is connected to the compressor and transmits power to form a single working medium combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, throttle valve, heater, evaporator, regenerator, nozzle, second regenerator and high temperature regenerator; compression
  • the mechanical circulating working fluid channel is connected to the high-temperature regenerator through the heat supply, and then divided into two paths—the first path is connected to the expander, and the second path is 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 communicated with the expander through the middle inlet port after the nozzle and the second regenerator, and the second path is led from the end of the regenerator through the throttle valve and evaporated
  • the expander also has a circulating working medium channel to communicate with the regenerator;
  • 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 through the high-temperature regenerator;
  • the heat supply device also has a heated medium channel connected to the
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, throttle valve, heat supply device, evaporator, regenerator, reheater and high temperature regenerator; compressor has circulating working fluid After the passage is connected to the high-temperature regenerator through the heat supply, it is divided into two paths-the first circulating working fluid passage is connected to the expander, the expander and the circulating working fluid passage are connected to the expander and the expander through the reheater.
  • the circulating working medium channel is connected with the regenerator, the second circulating working medium channel is connected with the regenerator through the reheater, and then the regenerator has a condensate pipeline connected with the evaporator through a throttle valve, and the evaporator has a circulation
  • the working medium channel is connected to the regenerator, and the regenerator also has a circulating working medium channel that communicates with the compressor through the high-temperature regenerator; the heater also has a heated medium channel that communicates with the outside, and the evaporator also 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 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 claims 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 a single working substance combined cycle heat pump device described in claims 1-8, adding a new heat supply 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 Connect the compressor and transmit power, the newly added heater and the heated medium channel communicate with the outside, forming a single working substance combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, throttle valve, heat supply, evaporator, regenerator and second heat supply;
  • the compressor has a first cycle working fluid channel It is connected to the second heat supply unit, and the second heat supply unit also has a circulating working medium channel that communicates with the heat regenerator through an expander, and the compressor and a second circulating working medium channel are connected to the heat supplier, and the heat supply device also has a circulating working medium channel.
  • the regenerator After the working medium channel is connected to the heat regenerator, the regenerator has a condensate pipe connected to the evaporator through a throttle valve.
  • the evaporator also has a circulating working medium channel that communicates with the regenerator, and the regenerator has a circulating working medium channel.
  • 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 connected with the outside, and the expander is connected to the compressor and transmits power to form a single working medium Combined cycle heat pump device.
  • Single working medium combined cycle heat pump device mainly composed of compressor, expander, throttle valve, heat supply device, evaporator, regenerator and second heat supply device;
  • the compressor has a first cycle working medium channel It is connected to the heat supply, and the heat supply has a circulating working medium channel that communicates with the regenerator.
  • the regenerator has a condensate pipeline connected to the evaporator through a throttle valve
  • the compressor also has a second circulating working medium channel that communicates with the regenerator.
  • the second heat supply is connected, the second heat supply also has a circulating working medium channel that communicates with the heat regenerator through the expander, the evaporator also has a circulating working medium channel that communicates with the regenerator, and the regenerator has a circulating working medium channel.
  • 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 connected with the outside, and the expander is connected to the compressor and transmits power to form a single working medium Combined cycle heat pump device.
  • the single working substance combined cycle heat pump device is mainly composed of a compressor, an expander, a throttle valve, a heat supply device, an evaporator, a regenerator, a new compressor and a second heat supply device; the compressor has a cycle The working medium channel is connected to the heat supply, and the heat supply has a circulating working medium channel which is connected to the regenerator.
  • the 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 with the regenerator, the regenerator also has a circulating working medium channel which is connected to the compressor and the newly added compressor, and the newly added compressor also has a circulating working medium channel which is connected to the second heat supply unit.
  • the circulating working medium channel is connected to the heat regenerator through the expander; the heat supply and the second heat supply device also have the heated medium channel to communicate with the outside, the evaporator also has the low temperature heat medium channel to communicate with the outside, and the expander is connected to the compressor And transmit 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 claims 11-13, adding a new heat supply, and the heat supply has a circulating working medium channel and The regenerator communication is adjusted so that the heat supply 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 has a heated medium channel that communicates with the outside, forming 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 claims 11-13, adding a nozzle and a second regenerator, and the heat supply has a cycle operation.
  • the communication between the mass channel and the regenerator is adjusted so that the heat supply has a circulating working medium channel that communicates with the regenerator via the second regenerator, and the regenerator is provided with a circulating working medium channel that passes through the nozzle and the second regenerator and then passes through the middle.
  • the gas 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 claims 11-13, adding a reheater, and the heat supply has a circulating working fluid channel and a heat recovery
  • the communication of the heater is adjusted so that the heat supply has a circulating working medium channel through the reheater to communicate with the heat regenerator, and the second heat supplier has a circulating working medium channel through the expander and the heat regenerator to adjust to the second heat supplier with circulation
  • the 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 a single working substance combined cycle heat pump device described in claims 1-16, adding a turbine, eliminating a 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 a single-working-substance combined cycle heat pump device of any one of claims 1-16.
  • 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.
  • Figure 1/16 is the first principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 2/16 is the second principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 3/16 is the third principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 4/16 is a fourth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 5/16 is the fifth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 6/16 is the sixth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 7/16 is the seventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 8/16 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.
  • Figure 9/16 is a ninth principle thermal system diagram of a single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 10/16 is the tenth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 11/16 is the eleventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 12/16 is the twelfth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 13/16 is the 13th principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 14/16 is the 14th principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 15/16 is the 15th principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 16/16 is a diagram of the 16th principle thermal system of the single working substance combined cycle heat pump device provided by the present invention.
  • the heat regenerator 6 After the heat regenerator 6 has a condensate pipe connected to the evaporator 5 through the throttle valve 3, the evaporator 5 There is a circulating working medium channel connected with the regenerator 6, and the regenerator 6 has a circulating working medium channel connected with the compressor 1; the heater 4 also has a heated medium channel communicating with the outside, and the evaporator 5 has a low temperature The heat medium channel communicates 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 5 enters the regenerator 6 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supply 4 It 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 6, the second path flows through the regenerator 6 to release heat and condense and flow through the throttle valve 3 to throttle After depressurization, it enters the evaporator 5; the circulating working fluid entering the evaporator 5 absorbs heat and vaporizes, and then enters the regenerator 6; the heated medium obtains high temperature heat load through the heat supply 4, and the low temperature heat medium provides low temperature heat through the evaporator 5.
  • Load, external and expander 2 provide power to compressor 1 together to form a single working fluid combined cycle heat pump device.
  • Compressor 1 has a circulating working medium channel connected with heat supply 4 and then divided into two paths—— The first path is connected to the heat regenerator 6 through the expander 2, and the second path is directly connected to the heat regenerator 6, after which there is a condensate pipe connected to the evaporator 5 through the turbine 7, and the evaporator 5 has a cycle.
  • the working medium channel is connected to the regenerator 6, and the regenerator 6 also has a circulating working medium channel that communicates with the compressor 1; the heater 4 also has a heated medium channel that communicates with the outside, and the evaporator 5 has a low-temperature heat medium channel that communicates with the outside.
  • the expander 2 and the turbine 7 are connected to the compressor 1 and transmit power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 5 enters the regenerator 6 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supply 4 It 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 6, the second path flows through the regenerator 6 to release heat and condense and flow through the turbine 7 to reduce pressure to perform work Then enter the evaporator 5; the circulating working fluid entering the evaporator 5 absorbs heat and vaporizes, and then enters the regenerator 6; the heated medium obtains the high temperature heat load through the heat supply 4, and the low temperature heat medium provides the low temperature heat load through the evaporator 5.
  • the outside, the expander 2 and the turbine 7 jointly provide power to the compressor 1 to form a single working fluid combined cycle heat pump device.
  • the compressor 1 has a circulating working medium channel and a heat supply device 4 After connecting, it is divided into two paths-the first path is connected to the heat regenerator 6 through the expander 2 and the second path is connected to the heat regenerator 6 through the second heat supply unit 8 and then the regenerator 6 has a condensate pipeline through it.
  • the throttle valve 3 is in communication with the evaporator 5.
  • the evaporator 5 also has a circulating working medium channel connected with the regenerator 6, and the regenerator 6 has a circulating working medium channel connected with the compressor 1; the heat supply 4 and the second supply
  • the heat exchanger 8 also has a medium to be heated channel to communicate with the outside, the evaporator 5 also has a low-temperature heating 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 5 enters the regenerator 6 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supply 4 And release heat, and then divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 6, the second path flows through the second heat supply 8 and the regenerator 6 to gradually release heat and condense, Flow through the throttle valve 3 throttling and pressure reduction, and then enter the evaporator 5; the circulating working fluid entering the evaporator 5 absorbs heat and vaporizes, and then enters the regenerator 6; the heated medium passes through the heat supply 4 and the second heat supply 8 Obtain the high temperature heat load, the low temperature heat medium provides the low temperature heat load through the evaporator 5, and the external and expander 2 jointly provide power to the compressor 1 to form a single working fluid combined cycle heat pump device.
  • the expander 2 also has a circulating working medium channel to communicate with the regenerator 6; the evaporator 5 also has a circulating working medium channel to communicate with the regenerator 6, and the regenerator 6 also has a circulating working medium channel to communicate with the compressor 1;
  • the heat supplier 4 also has a medium to be heated channel to communicate with the outside, the evaporator 5 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 5 enters the regenerator 6 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supply 4 Then it is divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 6, the second path flows through the second regenerator 10 and releases heat, and then enters the regenerator 6 After the heat is released and partially or completely condensed, it is divided into two paths-the first path flows through the nozzle 9 to reduce the pressure and increase the speed, flows through the second regenerator 10 to absorb heat, and enters the expander 2 through the intermediate inlet port to reduce the pressure After performing work, it enters the regenerator 6.
  • the second condensate or the condensate after the second condensate continues to release heat enters the evaporator 5 after being throttled and depressurized by the throttle valve 3; the circulating working fluid that enters the evaporator 5 is absorbed The heat vaporizes and then enters the regenerator 6; the heated medium obtains high temperature heat load through the heat supply 4, and the low temperature heat medium provides low temperature heat load through the evaporator 5.
  • the outside and the expander 2 together provide power to the compressor 1 to form a single unit Working fluid combined cycle heat pump device.
  • the first path is connected to the expander 2, the expander 2 and the circulating working medium channel are connected to the expander 2 through the reheater 11, and the expander 2 and the circulating working medium channel are connected to the regenerator 6 ,
  • the second path is connected to the regenerator 6 through the reheater 11, and then the regenerator 6 has a condensate pipeline that communicates with the evaporator 5 through the throttle valve 3, and the evaporator 5 also has a circulating working fluid channel and a regenerator 6 is connected, the regenerator 6 has a circulating working medium channel to communicate with the compressor 1;
  • the heater 4 has a heated medium channel to communicate with the outside, the evaporator 5 also has a low-temperature heat medium channel to communicate with the outside, and the expander 2 is connected
  • the compressor 1 also transmits power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 5 enters the regenerator 6 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supply 4 After the heat is released, it is divided into two paths-the first path enters the expander 2 to reduce pressure to a certain extent, then flows through the reheater 11 to absorb heat, enters the expander 2 to continue the pressure reduction, and then enters the regenerator 6.
  • the second path flows through the reheater 11 to release heat, flows through the regenerator 6 to release heat and condense, flows through the throttle valve 3 for throttling and pressure reduction, and then enters the evaporator 5; the circulating working fluid that enters the evaporator 5 absorbs heat and vaporizes , Then enter the regenerator 6; the heated medium obtains the high temperature heat load through the heat supply 4, the low temperature heat medium provides low temperature heat load through the evaporator 5, and the external and expander 2 provide power to the compressor 1 together to form a single working medium Combined cycle heat pump device.
  • the flow valve 3 is in communication with the evaporator 5.
  • the evaporator 5 also has a circulating working medium channel which is connected to the heat regenerator 6, and the regenerator 6 also has a circulating working medium channel which is connected to the compressor 1 through the high temperature regenerator 12; 4 is also connected to the outside with the heated medium channel, the evaporator 5 is also connected with the outside of the low-temperature heat medium channel, and the expander 2 is connected to the compressor 1 and transmits power.
  • the circulating working fluid discharged by the expander 2 and the evaporator 5 enters the regenerator 6 to absorb heat and increase heat, flows through the high-temperature regenerator 12 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 4 and the high-temperature regenerator 12 to gradually release heat, and then is divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 6, the second path flows After the heat regenerator 6 releases heat and condenses and flows through the throttle valve 3 to throttle and reduce the pressure, it enters the evaporator 5; the circulating working fluid entering the evaporator 5 absorbs heat and vaporizes, and then enters the regenerator 6; the heated medium passes through the heat supply
  • the device 4 obtains the high temperature heat load, the low temperature heat medium provides the low temperature heat load through the evaporator 5, and the outside and the expander 2 jointly provide power to the compressor 1 to form a single working medium combined
  • the circulating working fluid discharged from the expander 2 and the evaporator 5 enters the regenerator 6 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 newly added heating B and release heat, flow through the newly added compressor A to increase the pressure, flow through the heater 4 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. 6.
  • the second path flows through the heat regenerator 6 to release heat and condense and flows through the throttle valve 3 to throttle and reduce pressure and then enter the evaporator 5; the circulating working fluid that enters the evaporator 5 absorbs heat and vaporizes, and then enters the regenerator 6;
  • the heated medium obtains the high temperature heat load through the heat supply 4 and the newly added heat supply B, the low temperature heat medium provides the low temperature heat load through the evaporator 5, and the external and expander 2 jointly provide power to the compressor 1 and the newly added compressor A , Forming a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 5 enters the regenerator 6 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 newly added heating The heat is released by the new expander C, and then it flows through the heater 4 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 regenerator 6 to dissipate heat, condense, and flow through the throttle valve 3 to throttle and reduce pressure, and then enter the evaporator 5; the circulating working fluid that enters the evaporator 5 absorbs heat and vaporizes, and then enters the regenerator 6 ;
  • the heated medium obtains the high temperature heat load through the heat supply 4 and the newly added heat supply B, the low temperature heat medium provides the low temperature heat load through the evaporator 5, and the outside, the expander 2 and the newly added expander C jointly provide the compressor 1 Power, forming a single working substance combined cycle heat pump device.
  • the circulating working fluid discharged by the expander 2 and the evaporator 5 enters the regenerator 6 to absorb heat and increase heat, flows through the high-temperature regenerator 12 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 4 and the high-temperature regenerator 12 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 6, the second path flows through the regenerator 6 to release heat and condense, and flows through the throttle valve 3 to throttle and reduce pressure and then enter the evaporator 5; enter the evaporation
  • the circulating working fluid of the device 5 absorbs heat and vaporizes, and then enters the regenerator 6.
  • the heated medium obtains the high temperature heat load through the heat supply 4 and the newly added heat supply B, and the low temperature heat medium provides the low temperature heat load through the evaporator 5. Together with the expander 2, it provides power to the compressor 1 and the newly added compressor A to form a single working fluid combined cycle heat pump device.
  • the compressor 1 has a first circulating working fluid channel and a second heat supply.
  • the second heat supply device 8 is connected, the second heat supply device 8 also has a circulating working medium channel that communicates with the regenerator 6 through the expander 2, and the compressor 1 also has a second circulating working medium channel that is connected to the heat supplier 4 to supply heat.
  • the regenerator 4 also has a circulating working medium channel connected to the heat regenerator 6.
  • the regenerator 6 After the regenerator 6 has a condensate pipe connected to the evaporator 5 through the throttle valve 3, the evaporator 5 also has a circulating working medium channel and the regenerator 6
  • the regenerator 6 also has a circulating working medium channel to communicate with the compressor 1; the heat supply 4 and the second heat supply 8 also have a medium to be heated channel to communicate with the outside, and the evaporator 5 also has a low-temperature heat medium channel to communicate with the outside.
  • the expander 2 Externally connected, the expander 2 is connected to the compressor 1 and transmits power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 5 enters the regenerator 6 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
  • the heat supply 8 releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 6.
  • the second path continues to increase the pressure and heat up, flows through the heat supply 4 to release heat, and flows through the regenerator 6 to release heat and condense.
  • the low temperature heat medium provides the low temperature heat load through the evaporator 5, and the external and expander 2 jointly provide power to the compressor 1 to form a single working fluid combined cycle heat pump device.
  • the compressor 1 has a first circulating fluid channel and a supply
  • the heat exchanger 4 is connected, and the heat supplier 4 has a circulating working medium channel that communicates with the heat regenerator 6.
  • the regenerator 6 has a condensate pipe connected to the evaporator 5 through the throttle valve 3
  • the compressor 1 has a second The circulating working medium channel is in communication with the second heat supplier 8.
  • the second heat supplier 8 also has a circulating working medium channel in communication with the regenerator 6 through the expander 2, and the evaporator 5 also has a circulating working medium channel and the regenerator 6
  • the regenerator 6 also has a circulating working medium channel to communicate with the compressor 1; the heat supply 4 and the second heat supply 8 also have a medium to be heated channel to communicate with the outside, and the evaporator 5 also has a low-temperature heat medium channel 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 5 enters the regenerator 6 to absorb heat and rises, enters the compressor 1 to increase the pressure and rise to a certain degree, and then divides into two paths-the first path flows through the heating supply
  • the device 4 releases heat, flows through the regenerator 6 to release heat and condenses, flows through the throttle valve 3 to throttle and reduce the pressure, and enters the evaporator 5.
  • the second path continues to increase the pressure and heat up, and flows through the second heat supply device 8 to release heat.
  • the low temperature heat medium provides the low temperature heat load through the evaporator 5, and the external and expander 2 jointly provide power to the compressor 1 to form a single working fluid combined cycle heat pump device.
  • the heat regenerator 6 has a condensate pipe connected to the evaporator 5 through the throttle valve 3
  • the evaporator 5 also A circulating working medium channel is connected to the regenerator 6, and the regenerator 6 also has a circulating working medium channel which respectively communicates with the compressor 1 and the newly added compressor A.
  • the newly added compressor A also has a circulating working medium channel and a second supply
  • the heat exchanger 8 is connected, and the second heat supplier 8 also has a circulating working medium channel that communicates with the regenerator 6 through the expander 2; the heat supplier 4 and the second heat supplier 8 also have a heated medium channel that communicates with the outside and evaporates.
  • the device 5 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 5 enters the regenerator 6 to absorb heat and increase heat, and then divides into two paths-the first path flows through the newly added compressor A to increase the pressure and heat up, and then flows through the second path.
  • the second heat supply 8 releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 6, the second path flows through the compressor 1 to increase the pressure and raises, flows through the heat supply 4 to release heat, and flows through the regenerator 6.
  • a reheater is added, and the heat supply 4 has a circulating working medium channel to communicate with the regenerator 6 to adjust the heat supply 4
  • the circulating working medium channel is connected to the regenerator 6 through the reheater 11, and the second heat supply 8 is connected with the circulating working medium channel through the expander 2 and the regenerator 6 is adjusted to the second heat supply 8 with circulating working medium.
  • the mass channel is in communication with the expander 2, the expander 2 and the circulating working medium reheat channel are in communication with the expander 2 via the reheater 11, and the expander 2 and the circulating working medium channel are in communication with the regenerator 6.
  • the circulating working fluid in the external steam state enters the regenerator 6, the circulating working fluid discharged from the expander 2 enters the regenerator 6, and the two-circuit 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 4 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 6, and the second path flows through the heat recovery
  • the device 6 releases heat and condenses and then discharges to the outside; the heated medium obtains high temperature heat load through the heat supply 4, 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, forming a single working fluid combination Circulating 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)

Abstract

La divulgation concerne un dispositif 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 circuits après avoir été en communication avec un dispositif d'alimentation en chaleur (4) au moyen d'un canal de fluide de travail en circulation, le premier circuit étant en communication avec un régénérateur de chaleur (6) au moyen d'un détendeur (2), et le second circuit étant directement en communication avec le régénérateur de chaleur (6), et le régénérateur de chaleur (6) étant ensuite en communication avec un évaporateur (5) au moyen d'une conduite de condensat par l'intermédiaire d'une soupape d'étranglement (3). L'évaporateur (5) est en outre en communication avec le régénérateur de chaleur (6) au moyen du canal de fluide de travail en circulation ; le régénérateur de chaleur (6) est en outre en communication avec le compresseur (1) au moyen du canal de fluide de travail en circulation ; le dispositif d'alimentation en chaleur (4) est en outre en communication avec l'extérieur au moyen d'un canal de fluide chauffé ; l'évaporateur (5) est en outre en communication avec l'extérieur au moyen d'un canal de fluide caloporteur à basse température ; et le détendeur (2) est relié au compresseur (1) et transmet de l'énergie, formant ainsi le dispositif pompe à chaleur à cycle combiné à fluide de travail unique.
PCT/CN2020/000233 2019-10-06 2020-09-30 Dispositif pompe à chaleur à cycle combiné à fluide de travail unique WO2021068428A1 (fr)

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CN201910997348 2019-10-06

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WO2021068428A1 true WO2021068428A1 (fr) 2021-04-15

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030064662A (ko) * 2003-04-17 2003-08-02 주식회사 두우종합기술단 하나의 사이클로 구성된 가스냉난방(ｇｈｐ)장치
JP2011226728A (ja) * 2010-04-22 2011-11-10 Panasonic Corp 冷凍装置
CN106322828A (zh) * 2016-04-17 2017-01-11 李华玉 第二类热驱动压缩式热泵
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
CN109059351A (zh) * 2018-06-19 2018-12-21 李华玉 第三类热驱动压缩式热泵
CN109059345A (zh) * 2018-06-20 2018-12-21 李华玉 第一类热驱动压缩式热泵

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030064662A (ko) * 2003-04-17 2003-08-02 주식회사 두우종합기술단 하나의 사이클로 구성된 가스냉난방(ｇｈｐ)장치
JP2011226728A (ja) * 2010-04-22 2011-11-10 Panasonic Corp 冷凍装置
CN106322828A (zh) * 2016-04-17 2017-01-11 李华玉 第二类热驱动压缩式热泵
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
CN109059351A (zh) * 2018-06-19 2018-12-21 李华玉 第三类热驱动压缩式热泵
CN109059345A (zh) * 2018-06-20 2018-12-21 李华玉 第一类热驱动压缩式热泵

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