WO2021072994A1 - 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
WO2021072994A1
WO2021072994A1 PCT/CN2020/000258 CN2020000258W WO2021072994A1 WO 2021072994 A1 WO2021072994 A1 WO 2021072994A1 CN 2020000258 W CN2020000258 W CN 2020000258W WO 2021072994 A1 WO2021072994 A1 WO 2021072994A1
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Prior art keywords
regenerator
compressor
evaporator
expander
heat
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PCT/CN2020/000258
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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 WO2021072994A1 publication Critical patent/WO2021072994A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle

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 medium combined cycle heat pump device mainly composed of compressor, expander, throttle valve, second compressor, heat supply, evaporator and regenerator;
  • the compressor has circulating working medium channel and heat supply After the device is connected, it is divided into two paths-the first path is connected to the heat regenerator through the expander, the second path is directly connected to the heat regenerator, and then the condensate pipeline is connected to the evaporator through the throttle valve, and the evaporator
  • the heat supplier also has a heated medium channel that communicates with the outside, and the evaporator also has low-temperature heat.
  • the medium channel 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, second compressor, heat supply, evaporator, regenerator and second heat supply; 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, and the second path is connected to the heat regenerator through the second heat supply, and then the heat regenerator has a condensate pipeline.
  • the evaporator is connected to the evaporator through the throttle valve, and the evaporator has a circulating working medium channel that communicates with the regenerator through the second compressor, and the regenerator also has a circulating working medium channel that communicates with the compressor; the heat supply and the second heat supply
  • the evaporator also has a medium channel to be heated to communicate with the outside, and the evaporator also 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 medium combined cycle heat pump device.
  • the single working fluid combined cycle heat pump device is mainly composed of a compressor, an expander, a throttle valve, a second compressor, a heater, an evaporator, a regenerator, a nozzle and a second regenerator; compression After the machine has a circulating working medium channel connected to the heat supply, it is 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 from the Lead out from the middle or the end of the regenerator and pass through the nozzle and the second regenerator, and then communicate with the expander through the middle inlet port.
  • the second way is drawn from the end of the regenerator and communicates with the evaporator through a throttle valve.
  • the expander There is also a circulating working medium channel that communicates with the regenerator; the evaporator also has a circulating working medium channel that communicates with the regenerator through the second compressor, and the regenerator also has a circulating working medium channel that communicates with the compressor; the heat supply also has The heated medium channel is connected to the outside, and the evaporator also 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 medium combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, throttle valve, second compressor, heat supply, evaporator, regenerator and reheater;
  • the compressor has circulating working fluid After the channel is connected to the heat supply, it is divided into two channels-the first channel 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 After the second path is connected to the regenerator via the reheater, the regenerator has a condensate pipeline that communicates with the evaporator through a throttle valve, and the evaporator also has a circulating working fluid channel that communicates with the regenerator via the second compressor ,
  • the regenerator also 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 the compressor
  • the single working substance combined cycle heat pump device is mainly composed of a compressor, an expander, a throttle valve, a second compressor, a heat supply device, an evaporator, a regenerator and a high temperature regenerator; the compressor has a cycle
  • the mass channel 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, the second path is directly connected to the regenerator, and then the regenerator has a condensate pipeline through it.
  • the throttle valve is connected to the evaporator.
  • the evaporator has a circulating working medium channel that communicates with the regenerator through the second compressor, and the regenerator has a circulating working medium channel that communicates with the compressor through the high-temperature regenerator; 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, throttle valve, second compressor, heat supply, evaporator, regenerator, second heat supply and high temperature regenerator ;
  • the compressor has a circulating working medium channel through the heat supply and the high temperature regenerator, and then 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 supply unit After that, the condensate pipeline of the regenerator is connected to the evaporator through a throttle valve, and the evaporator has a circulating working medium channel that communicates with the regenerator through the second compressor, and the regenerator also has a circulating working medium channel through high temperature recovery.
  • the heat exchanger is connected to the compressor; the heat supplier and the second heat supplier respectively have a medium to be heated channel to communicate with 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 unit.
  • Working fluid combined cycle heat pump device is connected to the compressor; the heat supplier and the second heat supplier respectively have a medium to be heated channel to communicate with 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 unit.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, throttle valve, second compressor, heat supply, evaporator, regenerator, nozzle, second regenerator and high temperature heat recovery Composed of the compressor; after the compressor has a circulating working fluid channel connected to the high-temperature regenerator through the heat supply, it is 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 It is 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 out from the end of the regenerator through the expander.
  • the throttle valve is connected to the evaporator, and the expander has a circulating working medium channel that communicates with the regenerator; the evaporator also has a circulating working medium channel that communicates with the regenerator through the second compressor, and the regenerator also has a circulating working medium channel.
  • the high-temperature regenerator communicates with the compressor; the heater also has 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 connects 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, second compressor, heater, evaporator, regenerator, reheater and high temperature regenerator; compression
  • the circulating working medium channel of the machine is connected to the high-temperature regenerator through the heat supply and is divided into two paths-the first channel is connected to the expander, the expander and the circulating working medium channel are connected to the expander through the reheater and the expander returns.
  • regenerator There is a circulating working medium channel connected to the regenerator, the second way is connected to the regenerator through the reheater, and then the regenerator has a condensate pipeline connected to the evaporator through a throttle valve, and the evaporator also has a circulating working medium channel It communicates with the regenerator via the second compressor, the regenerator also has a circulating working medium channel that communicates with the compressor via the high-temperature regenerator; the heater also has a medium channel to be heated to communicate with the outside, and the evaporator has a low-temperature heat medium.
  • the channel 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.
  • 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 throttle valve, a second compressor, a heat supply device, an evaporator, a regenerator and a second heat supply device;
  • the compressor has a first A circulating working medium channel is in communication with the second heat supplier, the second heat supplier also has a circulating working medium channel in communication with the regenerator via an expander, and the compressor and a second circulating working medium channel are in communication with the heat supplier,
  • the heat exchanger also has a circulating working medium channel connected with the regenerator, and then the regenerator has a condensate pipe connected to the evaporator through a throttle valve, and the evaporator also has a circulating working medium channel connected with the regenerator through the second compressor ,
  • 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
  • the single working fluid combined cycle heat pump device is mainly composed of a compressor, an expander, a throttle valve, a second compressor, a heat supply device, an evaporator, a regenerator and a second heat supply device; the compressor has a first A circulating working medium channel is connected to the heat supplier, and the heat supplier also has a circulating working medium channel connected to the regenerator.
  • the compressor After the regenerator has a condensate pipeline connected to the evaporator through a throttle valve, the compressor has a second The circulating working medium channel is in communication with the second heat supplier, the second heat supplier also has a circulating working medium channel in communication with the regenerator via the expander, and the evaporator has a circulating working medium channel in communication with the regenerator via the second compressor ,
  • 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 is connected
  • the compressor also 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, second compressor, heat supply, evaporator, regenerator, new compressor and second heat supply ;
  • the compressor has a circulating working medium channel to communicate with the heat supply, and the heat supply also has a circulating working medium channel to communicate with the regenerator.
  • the regenerator After the regenerator has a condensate pipeline connected to the evaporator through a throttle valve, the evaporator also A circulating working medium channel is connected to the regenerator via the second compressor.
  • the regenerator also has a circulating working medium channel which is respectively connected to the compressor and the newly added compressor.
  • the newly added compressor also has a circulating working medium channel and a second supply.
  • the heat exchanger is connected, the second heat supplier also has a circulating working medium channel that communicates with the heat regenerator through the expander; the heat supplier and the second heat supplier also have a heated medium channel that communicates with the outside, and the evaporator also has a low-temperature heat medium.
  • the channel is connected to the outside, and the expander is connected to the newly added 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 described in items 11-13, adding a nozzle and a second regenerator, and the heat supply is equipped with a circulatory process.
  • 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-substance combined-cycle heat pump device is to add a reheater to any one of the single-working-substance combined-cycle heat pump devices described in items 11-13, and the heat supply has a circulating working medium 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 any one of the single working substance combined cycle heat pump devices described in items 1-15.
  • the throttle valve is eliminated, the turbine is added, and the regenerator has a condensate pipeline.
  • the throttle valve is connected to the evaporator and adjusted so that the regenerator has a condensate pipeline connected to the evaporator via a turbine, and the turbine is connected to the compressor and transmits power to form a single working fluid combined cycle heat pump device.
  • the single working substance combined cycle heat pump device is any one of the single working substance combined cycle heat pump devices described in items 1-15, eliminating the evaporator and the throttle valve, and canceling the low temperature heat between the evaporator and the outside
  • the medium channel connects the evaporator with the circulating working medium channel through the second compressor to the regenerator and adjusts it to the external steam channel communicates with the regenerator through the second compressor, and the condensate pipeline of the regenerator is throttled
  • the valve and the evaporator are connected and adjusted so that the regenerator has a condensate pipeline to communicate with the outside, forming 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 1-15.
  • the throttle valve and the second compressor are eliminated, and the regenerator has condensate.
  • the pipeline is connected to the evaporator through the throttle valve and adjusted to be connected to the heat regenerator with the condensate pipeline connected to the evaporator through the newly added nozzle, and the evaporator has the circulating working medium channel to communicate with the heat regenerator through the second compressor.
  • the evaporator has a circulating working medium channel that communicates with the regenerator through the newly added dual-energy compressor to form a single working medium 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 evaporator 6 is connected, the evaporator 6 also has a circulating working medium passage that communicates with the regenerator 7 through the second compressor 4, and the regenerator 7 also has a circulating working medium passage that communicates with the compressor 1; the heat supply 5 also has a heated medium The passage communicates with the outside, the evaporator 6 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 second compressor 4 enters the regenerator 7 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 heating supply
  • the heat is released by the heat exchanger 5, and then divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, and the second path flows through the regenerator 7 to release heat and condense and flow through the throttle valve 3.
  • the circulating working fluid that enters the evaporator 6 absorbs heat and vaporizes, flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7; the heated medium obtains high temperature through the heater 5 Heat load, the low-temperature heat medium provides low-temperature heat load through the evaporator 6, and the outside and the expander 2 together provide power to the compressor 1 and the second compressor 4 to form a single working medium combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the second compressor 4 enters the regenerator 7 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 heating supply Then it is divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, and the second path flows through the regenerator 7 to dissipate heat and condense and flow through the turbine 8 to reduce the pressure.
  • the work After the work is done, it enters the evaporator 6; the circulating working fluid that enters the evaporator 6 absorbs heat and vaporizes, flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7; the heated medium obtains the high temperature heat load through the heat supply 5 ,
  • the low-temperature heat medium provides low-temperature heat load through the evaporator 6, and the outside, the expander 2 and the turbine 8 jointly provide power to the compressor 1 and the second compressor 4 to form a single working fluid combined cycle heat pump device.
  • compressor 1 has a circulating working medium After the passage is connected to the heat supply unit 5, it is divided into two paths-the first path is connected to the heat regenerator 7 through the expander 2, and the second path is connected to the heat regenerator 7 through the second heat supply unit 9 and then the heat regenerator 7
  • the condensate pipeline is connected to the evaporator 6 through the throttle valve 3, and the evaporator 6 also has a circulating working medium channel which communicates with the regenerator 7 through the second compressor 4, and the regenerator 7 also has a circulating working medium channel and a compressor.
  • the heat supply 5 and the second heat supply 9 respectively have a medium to be heated channel to communicate with the outside
  • the evaporator 6 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 second compressor 4 enters the regenerator 7 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 heating supply
  • the heat is released by the heater 5, and then divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, and the second path flows through the second heat supply device 9 and the regenerator 7 to gradually release heat Condensate, flow through the throttle valve 3 for throttling and pressure reduction, and then enter the evaporator 6;
  • the circulating working fluid that enters the evaporator 6 absorbs heat and vaporizes, flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7;
  • the heating medium obtains high temperature heat load through the heat supply 5 and the second heat supply 9.
  • the low temperature heat medium provides low temperature heat load through the evaporator 6, and the outside and the expander 2 jointly provide power to the compressor 1 and the second compressor 4.
  • compressor 1 has After the circulating working fluid channel is connected to the heat supply 5, it is divided into two paths—the first path is connected to the expander 2, and the second path is connected to the regenerator 7 through the second regenerator 11, and then divided into two paths—the first The path is led out from the middle or the end of the regenerator 7 and communicated with the expander 2 through the middle inlet port after the nozzle 10 and the second regenerator 11, and the second path is led from the end of the regenerator 7 through the throttle valve 3 is connected to the evaporator 6, and the expander 2 has a circulating working medium channel that is connected to the regenerator 7; the evaporator 6 also has a circulating working medium channel that communicates with the regenerator 7 through the second compressor 4, and the regenerator 7 also There is a circulating working medium channel that communicates
  • the circulating working fluid discharged from the expander 2 and the second compressor 4 enters the regenerator 7 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 heating supply
  • the heat is dissipated by the radiator 5, and then divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, the second path flows through the second regenerator 11 and releases heat, and then enters the regenerator
  • the device 7 releases heat and partially or completely condenses it is divided into two paths-the first path flows through the nozzle 10 to reduce the pressure and increase the speed, flows through the second regenerator 11 to absorb heat, and enters the expander 2 through the intermediate inlet port.
  • the second condensate or the condensate after continuing to release heat enters the evaporator 6 after throttling and pressure reduction by the throttle valve 3;
  • the circulating working fluid entering the evaporator 6 absorbs heat It is vaporized and flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7;
  • the heated medium obtains the high temperature heat load through the heat supply 5, and the low temperature heat medium provides the low temperature heat load through the evaporator 6, the outside and the expander 2
  • the compressor 1 and the second compressor 4 are provided with power to form a single working substance combined cycle heat pump device.
  • the passage communicates with the regenerator 7 through the second compressor 4, and the regenerator 7 also has a circulating working medium passage that communicates with the compressor 1.
  • the heat supplier 5 also has a heated medium passage that communicates with the outside, and the evaporator 6 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 second compressor 4 enters the regenerator 7 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 heating supply Then it is divided into two paths.
  • the first path enters the expander 2 to reduce pressure to a certain level, and then flows through the reheater 12 to absorb heat, enters the expander 2 to continue pressure reduction and work, and then enters the regenerator. 7.
  • the second path flows through the reheater 12 to release heat, flows through the regenerator 7 to release heat and condense, flows through the throttle valve 3 to throttle and reduce pressure, and then enters the evaporator 6; the circulating working fluid that enters the evaporator 6 absorbs The heat vaporizes, flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7; the heated medium obtains high temperature heat load through the heat supply 5, and the low temperature heat medium provides low temperature heat load through the evaporator 6, external and expander 2 together to provide power to the compressor 1 and the second compressor 4 to form a single working substance combined cycle heat pump device.
  • the liquid pipeline communicates with the evaporator 6 through the throttle valve 3, the evaporator 6 also has a circulating working medium channel that communicates with the regenerator 7 through the second compressor 4, and the regenerator 7 also has a circulating working medium channel through high temperature heat recovery.
  • the device 13 communicates with the compressor 1; the heater 5 also has a medium to be heated channel to communicate with the outside, the evaporator 6 also has a low-temperature heat medium channel to communicate with the outside, and the expander 2 connects to the compressor 1 and transmits power.
  • the circulating working fluid discharged by the expander 2 and the second compressor 4 enters the regenerator 7 to absorb heat and increase heat, flows through the high-temperature regenerator 13 and absorbs heat, and then enters the compressor 1 to increase the pressure and increase the temperature;
  • the circulating working fluid discharged by the engine 1 flows through the heat supply 5 and the high-temperature regenerator 13 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 7, the second The path flows through the regenerator 7 to dissipate heat and condense and flow through the throttle valve 3 to throttle and reduce the pressure, and then enter the evaporator 6.
  • the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, and flows through the second compressor 4 to increase the pressure and increase the pressure. Then enter the regenerator 7; the heated medium obtains the high temperature heat load through the heat supply 5, the low temperature heat medium provides low temperature heat load through the evaporator 6, and the outside and the expander 2 jointly provide power to the compressor 1 and the second compressor 4. , Forming a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged by the expander 2 and the second compressor 4 enters the regenerator 7 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 newly added Heater B also releases heat, flows through the newly added compressor A to increase the pressure, and then flows through the heater 5 and releases heat. Then it is divided into two paths-the first path flows through the expander 2 and then enters the return circuit after the pressure is reduced.
  • Heater 7 the second path flows through the regenerator 7 to dissipate heat and condense and flow through the throttle valve 3 to throttle and depressurize, then enter the evaporator 6; the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, and flows through the second compression
  • the engine 4 is boosted and heated, and then enters the regenerator 7; the heated medium obtains the high temperature heat load through the heat supply 5 and the newly added heat supply B, and the low temperature heat medium provides low temperature heat load through the evaporator 6, external and expander 2 Together to provide power to the compressor 1, the second compressor 4 and the newly added compressor A to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged by the expander 2 and the second compressor 4 enters the regenerator 7 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 newly added Heater B also releases heat, flows through the newly added expander C to reduce pressure, then flows through the heater 5 and releases heat, and then divides into two paths-the first path flows through the expander 2 and then enters after the pressure is reduced.
  • Regenerator 7 the second path flows through the regenerator 7 to release heat and condense, and then flows through the throttle valve 3 to throttle and depressurize, and then enters the evaporator 6; the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, and flows through the second Compressor 4 is boosted and heated, and then enters regenerator 7; the heated medium obtains high temperature heat load through heat supply 5 and newly added heat supply B, and low temperature heat medium provides low temperature heat load through evaporator 6, external and expander 2 and the newly added expander C together provide power to the compressor 1 and the second compressor 4 to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged by the expander 2 and the second compressor 4 enters the regenerator 7 to absorb heat and increase heat, flows through the high-temperature regenerator 13 and absorbs heat, and then enters the compressor 1 to increase the pressure and increase the temperature;
  • the circulating working fluid discharged from the unit 1 flows through the newly added heat supply B and releases heat, flows through the newly added compressor A to increase the pressure and heats up, flows through the heat supply 5 and the high temperature regenerator 13 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 7, and the second path flows through the regenerator 7 to release heat and condense, and flows through the throttle valve 3 to throttle and depressurize and then enter the evaporator 6;
  • the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7; the heated medium obtains the high temperature heat load through the heat supply 5 and the newly added
  • compressor 1 has a first cycle
  • the working medium channel is in communication with the second heat supplier 9, the second heat supplier 9 also has a circulating working medium channel in communication with the regenerator 7 through the expander 2, and the compressor 1 also has a second circulating working medium channel and the heat supplier 5 is connected, the heat supply 5 has a circulating working medium channel and the regenerator 7 is connected, and then the regenerator 7 has a condensate pipe connected to the evaporator 6 through the throttle valve 3, and the evaporator 6 also has a circulating working medium channel
  • the second compressor 4 communicates with the regenerator 7, and the regenerator 7 also has a circulating working medium channel that communicates with the compressor 1.
  • the heat supply device 5 and the second heat supply device 9 also each have a heated medium channel that communicates with the outside.
  • the evaporator 6 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 second compressor 4 enters the regenerator 7 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 second heat supply 9 releases heat, flows through the expander 2 to reduce pressure and enters the regenerator 7, and the second path continues to increase the pressure and heat up, flows through the heat supply 5 to release heat, and flows through the regenerator 7 to release heat Condensate, flow through the throttle valve 3 and enter the evaporator 6;
  • the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7;
  • the medium obtains high temperature heat load through the heat supply 5 and the second heat supply 9.
  • the low temperature heat medium provides low temperature heat load through the evaporator 6, and the external and expander 2 together provide power to the compressor 1 and the second compressor 4, forming Single working substance combined cycle heat pump device.
  • the second compressor 4 communicates with the regenerator 7, and the regenerator 7 also has a circulating working medium channel that communicates with the compressor 1.
  • the heat supply device 5 and the second heat supply device 9 also each have a heated medium channel that communicates with the outside.
  • the evaporator 6 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 second compressor 4 enters the regenerator 7 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 heat supply 5 releases heat, flows through the regenerator 7 to release heat and condenses, flows through the throttle valve 3 for throttling and pressure reduction, and enters the evaporator 6, the second path continues to increase the pressure and heat up, and flows through the second heat supply 9 to release Heat, flow through the expander 2 to reduce pressure to work and enter the regenerator 7;
  • the circulating working fluid that enters the evaporator 6 absorbs heat and vaporizes, flows through the second compressor 4 to increase the pressure, and then enters the regenerator 7;
  • the medium obtains high temperature heat load through the heat supply 5 and the second heat supply 9.
  • the low temperature heat medium provides low temperature heat load through the evaporator 6, and the external and expander 2 together provide power to the compressor 1 and the second compressor 4,
  • the evaporator 6 also has a circulating working medium channel that communicates with the regenerator 7 through the second compressor 4, and the regenerator 7 also has a circulating working medium channel that respectively communicates with the compressor 1 and the newly added compressor A, and the newly added compressor A has a circulating working medium channel connected with the second heat supply device 9, and the second heat supply device 9 has a circulating working medium channel connected with the heat regenerator 7 via the expander 2; the heat supply device 5 and the second heat supply device 9
  • the heated medium channel is connected to the outside, the evaporator 6 also has a low-temperature heat medium channel connected to the outside, and the expander 2 is connected to the newly added compressor A and transmits power.
  • the circulating working fluid discharged by the expander 2 and the second compressor 4 enters the regenerator 7 to absorb heat and increase the temperature, and then divides into two paths-the first path flows through the newly added compressor A to increase the pressure, increase the pressure, and flow.
  • the heat is released by the second heat supply device 9, and it flows through the expander 2 to reduce the pressure and enters the regenerator 7.
  • the second path flows through the compressor 1 to increase the pressure and raises the pressure, flows through the heat supply device 5 to release heat, and flows through the heat recovery device.
  • Heater 7 releases heat and condenses, passes throttling valve 3 for throttling and pressure reduction, and enters evaporator 6; the circulating working fluid that enters evaporator 6 absorbs heat and vaporizes, flows through second compressor 4 to increase pressure and increase, and then enters heat recovery ⁇ 7; The heated medium obtains the high temperature heat load through the heat supply 5 and the second heat supply 9.
  • the low temperature heat medium provides low temperature heat load through the evaporator 6, and the outside and the expander 2 jointly provide the compressor 1 and the second compressor 4 and the new compressor A provides power to form a single working fluid combined cycle heat pump device.
  • a reheater is added, and the heat supply 5 has a circulating working medium channel to communicate with the regenerator 7 to adjust to the heat supply 5.
  • the circulating working medium channel is connected with the regenerator 7 through the reheater 12, and the second heat supply 9 has a circulating working medium channel through the expander 2 and the regenerator 7 is adjusted to the second heat supply 9 with a circulating working medium.
  • the mass channel is in communication with the expander 2, the expander 2 and the circulating working medium channel are in communication with the expander 2 via the reheater 12, and the expander 2 and the circulating working medium channel are in communication with the regenerator 7.
  • the circulating working fluid in the external vapor state flows through the second compressor 4 after being boosted and heated, and then enters the regenerator 7, the circulating working fluid discharged from the expander 2 enters the regenerator 7, and the two-way circulating working fluid absorbs After the heat rises up, it enters the compressor 1 to increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supply 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 return circuit.
  • Heater 7 the second path flows through the regenerator 7 to release heat and condense, and then discharges to the outside; the heated medium obtains the high temperature heat load through the heat supply 5, and the external steam provides low temperature heat load through the in and out process, and the external and expander 2 share
  • the compressor 1 and the second compressor 4 provide power to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged by the expander 2 and the newly added dual-energy compressor E enters the regenerator 7 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the temperature;
  • the circulating working fluid discharged from the compressor 1 flows through Heater 5 releases heat, and then divided into two paths-the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, and the second path flows through the regenerator 7 to release heat, condense and flow through the new
  • the nozzle D enters the evaporator 6 after depressurization and speed increase;
  • the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, flows through the newly-added dual-energy compressor E to increase the pressure and increase the pressure and decelerate, and then enter the regenerator 7; be heated
  • the medium obtains the high temperature heat load through the heat supply 5, and the low temperature heat medium provides the low temperature heat load through the evaporator 6.
  • the external and expander 2 together provide power to the compressor 1 and
  • a single working fluid is conducive to production and storage; reduces operating costs and improves the flexibility of cycle adjustment
  • the low-pressure operation mode is adopted in the high-temperature heating zone to alleviate or solve the contradiction between the performance index, circulating medium parameters and the pressure and temperature resistance of pipes in traditional refrigeration and heat pump devices.

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

Abstract

La présente invention concerne un dispositif de pompe à chaleur à cycle combiné à fluide de travail unique, qui appartient au domaine technique de la réfrigération et des pompes à chaleur. Il comprend un compresseur (1), un détendeur (2), un robinet d'étranglement (3), un second compresseur (4), un dispositif d'alimentation en chaleur (5), un évaporateur (6) et un régénérateur (7) ; le compresseur (1) communiquant avec le dispositif d'alimentation en chaleur (5) par l'intermédiaire d'un canal de fluide de travail de cycle, puis étant divisé en deux trajets, un premier trajet communiquant avec le régénérateur (7) à travers le détendeur (2), le second trajet communiquant directement avec le régénérateur (7), puis le régénérateur (7) communiquant avec l'évaporateur par l'intermédiaire du robinet d'étranglement (3) par l'intermédiaire d'une conduite de condensat, l'évaporateur communiquant en outre avec le régénérateur (7) par l'intermédiaire du second compresseur (4) à travers le canal de fluide de travail de cycle, et le régénérateur (7) communique en outre avec le compresseur (1) à travers le canal de fluide de travail de cycle ; le dispositif d'alimentation en chaleur (5) communique en outre avec l'extérieur à travers un canal de fluide chauffé, l'évaporateur (6) communique en outre avec l'extérieur à travers un canal de fluide caloporteur à basse température, et le détendeur (2) est raccordé au compresseur (1) et transmet de l'énergie pour former le dispositif de pompe à chaleur à cycle combiné à fluide de travail unique.
PCT/CN2020/000258 2019-10-17 2020-10-16 Dispositif de pompe à chaleur à cycle combiné à fluide de travail unique WO2021072994A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201911010676.8 2019-10-17
CN201911010676 2019-10-17
CN201911010541.1 2019-10-17
CN201911010541 2019-10-17

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1891981A (zh) * 2005-07-04 2007-01-10 陈培豪 热力循环和装置
CN1891980A (zh) * 2005-07-04 2007-01-10 陈培豪 蒸汽动力循环和装置
GB2431968B (en) * 2005-11-04 2010-09-15 Parsons Brinckerhoff Ltd Process and plant for power generation
US20130341929A1 (en) * 2012-06-26 2013-12-26 The Regents Of The University Of California Organic flash cycles for efficient power production
US20150052906A1 (en) * 2013-08-22 2015-02-26 General Electric Company Duct Fired Combined Cycle System
US9038390B1 (en) * 2014-10-10 2015-05-26 Sten Kreuger Apparatuses and methods for thermodynamic energy transfer, storage and retrieval
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
CN108005743A (zh) * 2017-11-13 2018-05-08 中国科学院广州能源研究所 一种带压缩制冷增效的无泵有机朗肯循环发电系统
CN108119194A (zh) * 2016-12-15 2018-06-05 李华玉 三重联合循环动力装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1891981A (zh) * 2005-07-04 2007-01-10 陈培豪 热力循环和装置
CN1891980A (zh) * 2005-07-04 2007-01-10 陈培豪 蒸汽动力循环和装置
GB2431968B (en) * 2005-11-04 2010-09-15 Parsons Brinckerhoff Ltd Process and plant for power generation
US20130341929A1 (en) * 2012-06-26 2013-12-26 The Regents Of The University Of California Organic flash cycles for efficient power production
US20150052906A1 (en) * 2013-08-22 2015-02-26 General Electric Company Duct Fired Combined Cycle System
US9038390B1 (en) * 2014-10-10 2015-05-26 Sten Kreuger Apparatuses and methods for thermodynamic energy transfer, storage and retrieval
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
CN108119194A (zh) * 2016-12-15 2018-06-05 李华玉 三重联合循环动力装置
CN108005743A (zh) * 2017-11-13 2018-05-08 中国科学院广州能源研究所 一种带压缩制冷增效的无泵有机朗肯循环发电系统

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