WO2021072991A1 - 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
WO2021072991A1
WO2021072991A1 PCT/CN2020/000255 CN2020000255W WO2021072991A1 WO 2021072991 A1 WO2021072991 A1 WO 2021072991A1 CN 2020000255 W CN2020000255 W CN 2020000255W WO 2021072991 A1 WO2021072991 A1 WO 2021072991A1
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Prior art keywords
regenerator
compressor
medium channel
expander
evaporator
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PCT/CN2020/000255
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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 WO2021072991A1 publication Critical patent/WO2021072991A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type

Definitions

  • the invention belongs to the technical field of refrigeration and heat pumps.
  • Cold demand, heat demand and power demand are common in human life and production; among them, the use of mechanical energy to convert heat energy is an important way to achieve cooling and efficient heating.
  • the temperature of the cooling medium changes during refrigeration, and the temperature of the heated medium often changes during heating; when using mechanical energy to heat, often the heated medium has the dual characteristics of variable temperature and high temperature at the same time, which makes the use of a single Thermal cycle theory has many problems such as unreasonable performance index, low heating parameters, high compression ratio, and too much working pressure when it realizes cooling or heating.
  • the temperature difference between the working fluid and the heated medium loses a lot; at the same time, the condensate loses a lot in the depressurization process or is used
  • the cost is high; when the supercritical working condition is adopted, the compression ratio is high, which makes the manufacturing cost of the compressor high and the safety is reduced; in both cases, it is difficult to eliminate the side effects of obtaining low-temperature heat load.
  • the gas compression heat pump device based on the reverse Brayton cycle requires a relatively low compression, which limits the improvement of heating parameters; at the same time, the low temperature process is variable temperature, which makes the low temperature link of cooling or heating often large The temperature difference loss, the performance index is not ideal.
  • the present invention proposes a single working substance combined cycle heat pump device.
  • the main purpose of the present invention is to provide a single working substance combined cycle heat pump device.
  • the specific content of the invention is described as follows:
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, evaporator and regenerator;
  • the compressor has circulating working fluid channel and heat supply After the device is connected, it is divided into two paths-the first path is connected to the regenerator through the expander, the second path is directly connected to the second compressor, and the second compressor also has a circulating working fluid channel connected to the regenerator after the regenerator
  • the condensate pipeline is connected to the evaporator through the throttle valve.
  • the evaporator has a circulating working medium channel connected to the heat regenerator, and the regenerator has a circulating working medium channel connected to the compressor; the heat supply is also heated
  • the 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 substance combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, 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 regenerator through the expander, the second path is directly connected to the second compressor, and the second compressor also has a circulating working fluid path through the second path.
  • the regenerator After the heat supply and the regenerator are connected, the regenerator has a condensate pipeline to communicate with the evaporator through a throttle valve.
  • the evaporator also has a circulating working medium channel that communicates with the regenerator, and the regenerator also has a circulating working medium channel.
  • 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 fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heater, evaporator, regenerator, nozzle and second regenerator; compression After the machine has a circulating working medium channel connected to the heater, it is divided into two paths-the first way is connected with the expander, the second way is connected with the second compressor, and the second compressor has a circulating working medium channel through the second heat recovery After communicating with the regenerator, it is divided into two paths—the first path is led out from the middle or the end of the regenerator and connected to the expander through the middle inlet port after passing through the nozzle and the second regenerator. After the end of the heat regenerator is led out, it is connected to the evaporator through a throttle valve.
  • the evaporator has a circulating working medium channel to communicate with the regenerator, and the expander also has a circulating working medium channel to communicate with the regenerator, and the regenerator also has a circulating working medium.
  • the mass channel is connected with the compressor; the heat supply device has a heated medium channel connected to the outside, and the evaporator has a low temperature heat medium channel connected to the outside.
  • the expander is connected to the compressor and transmits power to form a single working substance combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, 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 ,
  • the second path is directly connected to the second compressor, the second compressor also has a circulating working medium channel that communicates with the regenerator through the reheater, and then the regenerator has a condensate pipeline that communicates with 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 that 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 is connected to the compressor and transmits power to form a single working substance combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heater, evaporator, regenerator and high temperature regenerator; the compressor has a cycle process
  • the mass passage 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 second compressor, and the second compressor has a circulating working fluid.
  • the regenerator After the passage is connected to the regenerator, the regenerator has a condensate pipeline connected to the evaporator through a throttle valve, and the evaporator also has a circulating working medium channel that communicates with the regenerator, and the regenerator also has a circulating working medium channel through high temperature
  • the regenerator is connected to the compressor; the heat supply device also has a heated medium channel connected to the outside, and the evaporator has a low temperature heat medium channel connected to the outside.
  • the expander is connected to the compressor and transmits power to form a single working substance combined cycle heat pump device .
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heat supply, evaporator, regenerator, second heat supply and high temperature regenerator ;
  • Compressor has a circulating working medium channel through the heat supply and the high-temperature regenerator, after which it is divided into two paths-the first path is connected to the regenerator through the expander, the second path is directly connected to the second compressor, and the second compression
  • the machine also has a circulating working medium channel that communicates with the regenerator through the second heat supply, and then the regenerator has a condensate pipeline that communicates with the evaporator through a throttle valve, and the evaporator has a circulating working medium channel that communicates with the regenerator.
  • the regenerator also has a circulating working medium channel that communicates with the compressor through the high-temperature regenerator; the heat supply and the second heat supply also have a heated medium channel that communicates with the outside, and the evaporator has a low-temperature heat medium channel that communicates with the outside.
  • the expander is connected to the compressor and transmits power to form a single working fluid combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, heater, evaporator, regenerator, nozzle, second regenerator and high temperature heat recovery Composed of the compressor; the compressor has a circulating working medium channel that is connected to the high-temperature regenerator through the heat supply and is divided into two paths-the first path is connected to the expander, the second path is directly connected to the second compressor, and the second compressor There is also a circulating working medium channel that is connected to the regenerator through the second regenerator and then divided into two paths-the first path is led out from the middle or the end of the regenerator and passes through the nozzle and the second regenerator and then enters through the middle.
  • the gas port is connected to the expander, and the second path is led from the end of the regenerator to the evaporator through a throttle valve.
  • the evaporator has a circulating working medium channel that communicates with the regenerator, and the expander also has a circulating working medium channel and a return.
  • the heat exchanger is connected, and the regenerator has a circulating working medium channel that communicates with the compressor through the high-temperature regenerator; the heat supplier 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, and the expander Connect the compressor and transmit power to form a single working substance combined cycle heat pump device.
  • Single working fluid combined cycle heat pump device mainly composed of compressor, expander, second compressor, throttle valve, 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.
  • the evaporator 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 and a circulating working medium channel communicate with the compressor through the high-temperature regenerator; the heater is also heated
  • the 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 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-substance combined-cycle heat pump device is one of the single-working-substance combined-cycle heat pump devices described in items 1-10.
  • 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 1-10.
  • the evaporator and the throttle valve are eliminated, and the low temperature heat between the evaporator and the outside is eliminated.
  • Medium channel adjust the evaporator's circulating working medium channel to communicate with the heat regenerator, and adjust the external steam channel to communicate with the heat regenerator, and adjust the condensate pipeline of the heat regenerator to communicate with the evaporator through the throttle valve to adjust to the heat regenerator
  • a condensate pipeline is connected to the outside to form a single working fluid combined cycle heat pump device.
  • the single-working-substance combined-cycle heat pump device is one of the single-working-substance combined-cycle heat pump devices described in items 1-10, adding a dual-energy compressor and replacing the compressor, adding an expansion speeder and replacing it Expander, add a new nozzle and replace the throttle valve to form a single working fluid combined cycle heat pump device.
  • Figure 1/11 is the first principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 2/11 is the second principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 3/11 is the third principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 4/11 is a fourth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 5/11 is the fifth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 6/11 is the sixth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Fig. 7/11 is the seventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 8/11 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 9/11 is a diagram of the ninth principle thermal system of the single-working-substance combined cycle heat pump device provided by the present invention.
  • Figure 10/11 is the tenth principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • Figure 11/11 is the eleventh principle thermal system diagram of the single working fluid combined cycle heat pump device provided by the present invention.
  • the machine 1 is connected; the heater 5 also has a heated medium 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 is connected to the compressor 1 and transmits power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 enters the regenerator 7 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, the second path flows through the second compressor 3 to increase the pressure and heat, and then flows through the regenerator 7 to release
  • the heat is condensed and flows through the throttle valve 4 to throttle and depressurize and enters the evaporator 6; the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, 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 external and expander 2 together provide power to the compressor 1 and the second compressor 3 to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 enters the regenerator 7 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, the second path flows through the second compressor 3 to increase the pressure and heat, and then flows through the regenerator 7 to release
  • the heat is condensed, flows through the turbine 8 for pressure reduction and enters the evaporator 6; the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, and then enters the regenerator 7; the heated medium obtains the high temperature heat load through the heat supply 5, and the low temperature
  • the 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 3 to form a single working medium combined cycle heat pump device.
  • compressor 1 has a circulating working medium After the passage is connected to the heat supply 5, it is divided into two paths-the first path is connected to the regenerator 7 through the expander 2, the second path is directly connected to the second compressor 3, and the second compressor 3 also has a circulating working fluid path
  • the regenerator 7 has a condensate pipeline that communicates with the evaporator 6 through the throttle valve 4, and the evaporator 6 also has a circulating working medium channel that communicates with the regenerator 7
  • the regenerator 7 also has a circulating working medium channel connected to the compressor 1;
  • the heat supply 5 and the second heat supply 9 also have a heated medium channel connected to the outside, respectively, and the evaporator 6 also has a low-temperature heat medium channel connected to the outside.
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 enters the regenerator 7 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, the second path flows through the second compressor 3 to increase the pressure and increase the temperature, and flow through the second heater 9 and the regenerator 7 gradually release heat and condense, flow through the throttle valve 4 to throttle and reduce pressure, and enter the evaporator 6;
  • the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, and then enters the regenerator 7;
  • the heated medium passes through Heater 5 and second heater 9 obtain high-temperature heat load, low-temperature heat medium provides low-temperature heat load through evaporator 6, external and expander 2 together provide power to compressor 1 and second compressor 3 to form a single working medium Combined cycle heat pump device.
  • compressor 1 has After the circulating working fluid channel is connected to the heater 5, it is divided into two paths-the first way is connected with the expander 2, the second way is connected with the second compressor 3, and the second compressor 3 also has a circulating working fluid channel through the second
  • the regenerator 11 and the regenerator 7 are connected, they are divided into two paths-the first path is led out from the middle or the end of the regenerator 7 and passed through the nozzle 10 and the second regenerator 11, and then passes through the middle air inlet port and expands.
  • the machine 2 is connected, the second path is led from the end of the regenerator 7 to the evaporator 6 through the throttle valve 4, and the evaporator 6 also has a circulating working medium channel that communicates with the regenerator 7, and the expander 2 also has a circulating working medium.
  • the passage is connected to the heat regenerator 7, and the regenerator 7 has a circulating working medium passage that communicates with the compressor 1; the heat supply 5 also has a heated medium passage that communicates with the outside, and the evaporator 6 has a low-temperature heat medium passage that communicates with the outside.
  • the expander 2 is connected to the compressor 1 and transmits power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 enters the regenerator 7 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5.
  • the second path flows through the second compressor 3 to increase the pressure and rise, and then flows through the second regenerator 11 and release heat, then enter the regenerator 7 to release heat and partially or completely condense, and then divide into two paths-the first path flows through the nozzle 10 to reduce the pressure and increase the speed, and flows through the second regenerator 11 to absorb heat, It enters the expander 2 through the middle intake port to reduce pressure, and then enters the regenerator 7.
  • the second condensate or the condensate after continuing to release heat enters the evaporator 6 after being throttled and pressure-reduced by the throttle valve 4;
  • the circulating working fluid of the evaporator 6 absorbs heat and vaporizes, 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, and the external and expander 2 share
  • the compressor 1 and the second compressor 3 provide power to form a single working fluid combined cycle heat pump device.
  • the evaporator 6 is connected to the evaporator 6 through the throttle valve 4, and the evaporator 6 also has a circulating working medium channel connected with the regenerator 7, and the regenerator 7 also has a circulating working medium channel connected with the compressor 1; the heat supply 5 also has The heated medium
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 enters the regenerator 7 to absorb heat and increase the temperature, and then enters the compressor 1 to increase the pressure and increase the pressure; the circulating working fluid discharged from the compressor 1 flows through the heat supplier 5. 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 12 to absorb heat, enters the expander 2 to continue the pressure reduction, and then enters the regenerator 7.
  • the second path flows through the second compressor 3 to boost the pressure, flows through the reheater 12 and the regenerator 7 to gradually release heat and condense, flows through the throttle valve 4 to throttle and reduce pressure, and then enters the evaporator 6; enters the evaporator
  • the circulating working fluid of 6 absorbs heat and vaporizes, 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, and the external and expander 2 jointly provide the compressor 1 and the second compressor 3 provide power to form a single working fluid combined cycle heat pump device.
  • the compressor 1 has a circulating working fluid channel After communicating with the high-temperature regenerator 13 through the heat supply 5, it is divided into two paths—the first path is connected to the regenerator 7 through the expander 2, the second path is directly connected to the second compressor 3, and the second compressor 3 is also connected to the second compressor 3.
  • the regenerator 7 After the circulating working medium channel is connected to the regenerator 7, the regenerator 7 has a condensate pipeline that communicates with the evaporator 6 through the throttle valve 4, and the evaporator 6 also has a circulating working medium channel that communicates with the regenerator 7.
  • the heat exchanger 7 also has a circulating working medium channel that communicates with the compressor 1 through the high-temperature regenerator 13; the heater 5 also has a heated medium channel that communicates with the outside, and the evaporator 6 also has a low-temperature heat medium channel that communicates with the outside. 2 Connect compressor 1 and transmit power.
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 enters the regenerator 7 to absorb heat and heat up, flows through the high-temperature regenerator 13 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 heater 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, and the second path flows
  • the second compressor 3 increases the pressure and raises the temperature, flows through the regenerator 7 to release heat and condenses, flows through the throttle valve 4 to throttle and reduce the pressure, and enters the evaporator 6;
  • the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, and then enters Regenerator 7;
  • the heated medium obtains high temperature heat load through heat supply 5, low temperature heat medium provides low temperature heat load through evaporator 6, external and expander 2 together provide power to compressor 1 and second compressor
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 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 heating B and release heat, flow through the newly added compressor A to increase the pressure, flow through the heater 5 and release heat, and then divide into two paths-the first path flows through the expander 2 and then enters the regenerator after the pressure is reduced and the work is done. 7.
  • the second path flows through the second compressor 3 to boost pressure, flows through the regenerator 7 to dissipate heat and condense, and flows through the throttle valve 4 to throttle and reduce pressure and then enter the evaporator 6; the circulating working fluid that enters the evaporator 6 It absorbs heat and vaporizes, 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, and the external and expander 2 jointly provide The compressor 1, the second compressor 3 and the newly added compressor A provide power to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 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 heating
  • the heat is released by the new expander C, and it flows through the heat supply device 5 and releases heat, and then it is divided into two paths-the first path flows through the expander 2 and then enters the regenerative heat after the pressure is reduced and the work is performed.
  • the second path flows through the second compressor 3 to increase the pressure and increase the pressure, flow through the regenerator 7 to release heat and condense, and flow through the throttle valve 4 to throttle and reduce the pressure, and then enter the evaporator 6; enter the circulation process of the evaporator 6.
  • the mass absorbs heat and vaporizes, 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.
  • the external, expander 2 and The newly added expander C provides power to the compressor 1 and the second compressor 3 together to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged from the expander 2 and the evaporator 6 enters the regenerator 7 to absorb heat and heat up, flows through the high-temperature regenerator 13 and absorbs heat, and then enters the compressor 1 to increase the pressure and increase the temperature; compressor 1
  • the discharged circulating working fluid flows through the newly-added heater B and releases heat, flows through the newly-added compressor A to increase the pressure and heats up, flows through the heater 5 and the high-temperature regenerator 13, and gradually releases 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 second compressor 3 to increase the pressure and increase the pressure, flow through the regenerator 7 to release heat and condense, and flow through the throttle valve 4 section.
  • the flow After the flow is depressurized, it enters the evaporator 6; the circulating working fluid entering the evaporator 6 absorbs heat and vaporizes, and then enters the regenerator 7; the heated medium passes through the heat supply 5 and the newly added heat supply B to obtain high temperature heat load, low temperature heat
  • the medium provides low-temperature heat load through the evaporator 6, and the external and expander 2 jointly provide power to the compressor 1, the second compressor 3 and the newly added compressor A, forming a single working medium combined cycle heat pump device.
  • the circulating working fluid in the external steam state enters the regenerator 7, the circulating working fluid discharged from the expander 2 enters the regenerator 7, and the two-circuit circulating working fluid enters the compressor 1 to increase the pressure after the heat absorption and temperature rise;
  • the circulating working fluid discharged from the compressor 1 flows through the heat supply device 5 and releases heat, and then is divided into two paths—the first path flows through the expander 2 to reduce pressure and then enters the regenerator 7, and the second path flows through the second path.
  • Compressor 3 increases in pressure and heats up and flows through regenerator 7 to release heat and condense, and then discharges to the outside; the heated medium obtains high temperature heat load through heat supply 5, 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 3 provide power to form a single working fluid combined cycle heat pump device.
  • the circulating working fluid discharged by the expansion speed increaser E and the evaporator 6 enters the regenerator 7 to absorb heat and increase the temperature, and then enters the dual-energy compressor D to increase the pressure and increase the speed and decrease the speed; the dual-energy compressor D discharges
  • the circulating working fluid flows through the heater 5 and releases heat, and then is divided into two paths-the first path flows through the expansion speed increaser E to reduce pressure and increase the speed and then enters the regenerator 7, and the second path flows through the compressor 3 Boost temperature, flow through the regenerator 7 to release heat and condense, flow through the newly added nozzle F to reduce the pressure and increase the speed, and enter the evaporator 6;
  • the circulating working fluid that enters the evaporator 6 absorbs heat and vaporizes, and then enters the regenerator 7 ;
  • the heated medium obtains the high temperature heat load through the heater 5, the low temperature heat medium provides the low temperature heat load through the evaporator 6, and the external and expansion speed increaser E jointly provide power to the compressor 3
  • 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.

Landscapes

  • 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

L'invention concerne un dispositif pompe à chaleur à cycle combiné à fluide de travail unique, appartenant au domaine technique des pompes de réfrigération et à chaleur. Un compresseur (1) est pourvu d'un canal de circulation de fluide de travail qui est en communication avec un dispositif d'alimentation en chaleur (5) et est ensuite divisé en deux trajets : un premier trajet est en communication avec un régénérateur de chaleur (7) au moyen d'un détendeur (2), et un deuxième trajet est directement en communication avec un deuxième compresseur (3) ; le deuxième compresseur (3) est également pourvu d'un canal de circulation de fluide de travail en communication avec le régénérateur de chaleur (7), puis le régénérateur de chaleur (7) est également pourvu d'une conduite de liquide de condensation qui est en communication avec un évaporateur (6) au moyen d'une soupape d'étranglement (4), l'évaporateur (6) est également pourvu d'un canal de circulation de fluide de travail en communication avec le régénérateur de chaleur (7), le régénérateur de chaleur (7) est également pourvu d'un canal de circulation de fluide de travail en communication avec le compresseur (1) ; le dispositif d'alimentation en chaleur (5) est également pourvu d'un canal de fluide chauffé en communication avec l'extérieur, l'évaporateur (6) est également pourvu d'un canal de fluide caloporteur à basse température en communication avec l'extérieur, et le détendeur (2) est relié au compresseur (1) et transmet de l'énergie, ce qui forme un dispositif de pompe à chaleur à cycle combiné à fluide de travail unique.
PCT/CN2020/000255 2019-10-15 2020-10-16 Dispositif pompe à chaleur à cycle combiné à fluide de travail unique WO2021072991A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201911010172.6 2019-10-15
CN201911010172 2019-10-15
CN201911010478.1 2019-10-17
CN201911010478 2019-10-17

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WO2021072991A1 true WO2021072991A1 (fr) 2021-04-22

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061549A (fr) * 1973-10-02 1975-05-27
JPH03125863A (ja) * 1989-10-06 1991-05-29 Matsushita Electric Ind Co Ltd ２段圧縮冷凍サイクル装置
CN101906998A (zh) * 2009-07-31 2010-12-08 王世英 多循环发电热力系统及其实现方法
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
CN108119195A (zh) * 2016-12-20 2018-06-05 李华玉 联合循环动力装置
US20180340712A1 (en) * 2017-05-24 2018-11-29 General Electric Company Thermoelectric energy storage system and an associated method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061549A (fr) * 1973-10-02 1975-05-27
JPH03125863A (ja) * 1989-10-06 1991-05-29 Matsushita Electric Ind Co Ltd ２段圧縮冷凍サイクル装置
CN101906998A (zh) * 2009-07-31 2010-12-08 王世英 多循环发电热力系统及其实现方法
CN107893685A (zh) * 2016-10-12 2018-04-10 李华玉 单工质蒸汽联合循环与联合循环蒸汽动力装置
CN108119195A (zh) * 2016-12-20 2018-06-05 李华玉 联合循环动力装置
US20180340712A1 (en) * 2017-05-24 2018-11-29 General Electric Company Thermoelectric energy storage system and an associated method thereof
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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