WO2023095427A1 - Système de circulation de milieu caloporteur - Google Patents

Système de circulation de milieu caloporteur Download PDF

Info

Publication number
WO2023095427A1
WO2023095427A1 PCT/JP2022/034874 JP2022034874W WO2023095427A1 WO 2023095427 A1 WO2023095427 A1 WO 2023095427A1 JP 2022034874 W JP2022034874 W JP 2022034874W WO 2023095427 A1 WO2023095427 A1 WO 2023095427A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat medium
refrigerant
heat
heating device
heat exchanger
Prior art date
Application number
PCT/JP2022/034874
Other languages
English (en)
Japanese (ja)
Inventor
俊二 森脇
由樹 山岡
常子 今川
繁男 青山
和彦 町田
和人 中谷
潤 吉田
泰彬 坂東
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2023095427A1 publication Critical patent/WO2023095427A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Definitions

  • the present disclosure relates to a heat medium circulation system.
  • a refrigerant release valve in a heat medium circuit is provided outside the housing.
  • the present disclosure provides a heat medium circulation system that safely diffuses the flammable refrigerant that has leaked into the heat medium circuit on the user side into the outdoor atmosphere, assuming that the flammable refrigerant leaks into the heat medium circuit on the user side. do.
  • a heat medium circulation system includes a compressor, a user-side heat exchanger, an expansion device, and a heat source-side heat exchanger connected in a ring, a refrigerant circuit using a combustible refrigerant, and a refrigerant discharged from the compressor.
  • a heat medium circuit in which a heat medium to be cooled or heated in the utilization side heat exchanger circulates by means of the A heating device that electrically heats the heat medium and a degassing device that separates the gas in the heat medium circuit and discharges it to the outside are provided.
  • the circulation device is installed upstream of the utilization side heat exchanger.
  • the heating device is arranged downstream of the utilization side heat exchanger and on a higher side than the utilization side heat exchanger.
  • the degassing device is arranged downstream of the heating device and on a higher side than the heating device.
  • a heat medium outlet portion of the heating device is arranged on a higher side than the heat generating portion of the heating device.
  • the heat medium inlet of the heating device is arranged on the lower side than the heat medium outlet.
  • the control device heats the heat generating portion of the heating device so that the surface temperature of the heat generating portion is lower than the ignition point temperature of the flammable refrigerant.
  • the heat medium circulation system according to the present disclosure further includes a refrigerant leakage detection sensor that detects leakage of the combustible refrigerant into the heat medium circuit, and a shutoff valve that shuts off the flow path of the heat medium circulating in the heat medium circuit. ing.
  • the control device When the control device determines that the combustible refrigerant has leaked into the heat medium circuit, it operates the cutoff valve in the closing direction to stop the flow of the heat medium.
  • the refrigerant leakage detection sensor is a refrigerant concentration sensor arranged near the exhaust port of the deaerator. The control device determines that the combustible refrigerant has leaked from the heat medium circuit when the detected value of the refrigerant concentration sensor is higher than a predetermined value.
  • the combustible refrigerant is R32 or a mixed refrigerant containing 70 weight percent or more of R32, or propane or a mixed refrigerant containing propane.
  • the heat medium circulation system safely discharges the combustible refrigerant into the outdoor atmosphere even if the combustible refrigerant leaks into the user-side heat medium circuit. This further improves safety.
  • FIG. 1 is a configuration diagram of a heat medium circulation system according to an embodiment of the present invention
  • Pressure-enthalpy diagram (Ph diagram) of the heat medium circulation system in the present embodiment Configuration diagram of a control system of the heat medium circulation system in the present embodiment Schematic diagram of a state in which the refrigerant gas in the heat medium circuit in the present embodiment is discharged into the outdoor atmosphere Flowchart for explaining refrigerant leak detection and control operation of the shutoff valve in the heat medium circulation system in the present embodiment
  • the circulation device is installed upstream of the utilization side heat exchanger, the heating device is arranged downstream of the utilization side heat exchanger and on a higher side than the utilization side heat exchanger, and the degassing device is installed in the heating device. downstream of and on the higher side than the heating device.
  • FIG. 1 An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
  • FIG. 1 An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
  • the heat medium circulation system 100 includes a refrigerant circuit 110, a heat medium circuit 120, and a controller .
  • the refrigerant circuit 110 is a vapor compression refrigeration cycle.
  • the refrigerant circuit 110 is configured by connecting a compressor 111 , a user-side heat exchanger 112 , an expansion device 113 , and a heat source-side heat exchanger 114 via pipes 116 .
  • Refrigerant circuit 110 uses propane, which is a flammable refrigerant, as a refrigerant.
  • the refrigerant circuit 110 is provided with a four-way valve 115 for switching between heating operation and cooling operation. Hot water is produced in the heating operation, and cold water is produced in the cooling operation.
  • the heat medium circuit 120 includes a use side heat exchanger 112, a use side terminal 122 such as a floor heating panel, a first switching valve 124a and a second switching valve 124b, a conveying pump 121, and a heat medium pipe. 126 are connected.
  • the first switching valve 124a and the second switching valve 124b selectively switch the circuit of the heat medium.
  • the conveying pump 121 is a heat medium conveying device.
  • the heat medium circuit 120 uses water or antifreeze as a heat medium.
  • the heat medium circuit 120 also includes a hot water storage tank 123 in parallel with the user terminal 122 .
  • the user terminal 122 and the hot water storage tank 123 are connected by a heat medium pipe 126 .
  • the heat medium pipe 126 branches from the first switching valve 124b and merges with the second switching valve 124a.
  • a heating device 127 is provided downstream of the utilization side heat exchanger 112.
  • the heating device 127 has a heater element 150 (see FIG. 4) arranged at a position higher than the installation position of the heat exchanger 112 on the utilization side.
  • a heat medium pipe 126 is connected to the heating device 127 so that the heat medium flowing out of the use-side heat exchanger 112 flows in from the bottom of the heating device 127 and flows out from the top.
  • a degassing device 128 is provided downstream of the heating device 127 and at the highest position (uppermost) of the heat medium circuit 120 .
  • the degassing device 128 can discharge the gas flowing through the heat medium circuit 120 to the outside.
  • the outlet of the deaerator 128 is open to the outdoor atmosphere.
  • a first cutoff valve 129a is provided between the transfer pump 121 and the use side heat exchanger 112 to stop the flow of the heat medium.
  • a second cutoff valve 129b is provided between the utilization side heat exchanger 112 and the heating device 127 .
  • the high-pressure refrigerant (point a) discharged from the compressor 111 flows into the user-side heat exchanger 112 via the four-way valve 115, and radiates heat to the heat medium flowing through the user-side heat exchanger 112. .
  • the high-pressure refrigerant (point b) after radiating heat in the user-side heat exchanger 112 is depressurized and expanded by the expansion device 113 , and then flows into the heat source-side heat exchanger 114 .
  • the low-pressure refrigerant (point c) flowing into the heat source side heat exchanger 114 absorbs heat from the outside air, evaporates, and returns to the suction side (point d) of the compressor 111 via the four-way valve 115 again.
  • the high-pressure refrigerant (point a) discharged from the compressor 111 flows into the heat source side heat exchanger 114 via the four-way valve 115, where it radiates heat to the outside air.
  • the high pressure refrigerant (point b) is depressurized and expanded in the expansion device 113 and then flows into the utilization side heat exchanger 112 .
  • the low-pressure refrigerant (point c) flowing into the usage-side heat exchanger 112 absorbs heat from the heat medium flowing through the usage-side heat exchanger 112 and evaporates. point).
  • the heat medium is heated by the utilization side heat exchanger 112 and circulated by the carrier pump 121 .
  • the heat medium is then radiated at the user terminal 122 and used to heat the user load.
  • the heat medium whose temperature has been lowered by radiating heat at the user-side terminal 122 is heated again by the user-side heat exchanger 112 .
  • the heater element 150 of the heating device 127 is energized to heat the heat medium flowing into the heating device 127. Heat directly.
  • the high-temperature heat medium heated by the use-side heat exchanger 112 circulates in the hot water storage tank 123 by switching the first switching valve 124a and the second switching valve 124b.
  • a high-temperature heat medium is introduced into the hot water storage tank 123 from the upper portion of the hot water storage tank 123 , and a low-temperature heat medium is led out from the lower portion of the hot water storage tank 123 and heated by the utilization side heat exchanger 112 .
  • the heat medium is cooled by the user-side heat exchanger 112 and circulated by the carrier pump 121, so that the heat medium absorbs heat at the user-side terminal 122 and is used to cool the user-side load.
  • the heat medium whose temperature has been increased by absorbing heat in the utilization side terminal 122 is cooled again in the utilization side heat exchanger 112 .
  • the controller 130 is provided inside the housing of the heat medium circulation system 100 .
  • the control device 130 controls the rotational speed of the compressor 111, the throttle amount of the expansion device 113, the rotational speed of the conveying pump 121, and the applied voltage of the heating device 127, and switches the four-way valve 115, the first switching valve 124a and the second switching valve 124a. 2 switching valve 124b. By doing so, the efficiency of the vapor compression refrigeration cycle is increased.
  • the control device 130 is composed of a controller 131 and a user interface 132 .
  • the controller 131 is connected to a high pressure side pressure sensor 133 , a discharge temperature sensor 134 , a heat source side heat exchange temperature sensor 135 , an outside air temperature sensor 136 , an incoming water temperature sensor 137 , an outgoing water temperature sensor 138 and a gas sensor 139 .
  • the controller 131 is equipped with a microcomputer, memory, and the like.
  • a user interface 132 is used to input the operation stop of the device, the temperature setting of the heat medium to be generated, and the like.
  • the high pressure side pressure sensor 133 is provided in the discharge side pipe of the compressor 111 and detects the discharge side pressure.
  • a discharge temperature sensor 134 detects the temperature of the discharged refrigerant.
  • the heat source side heat exchanger temperature sensor 135 is provided in the refrigerant pipe of the heat source side heat exchanger 114 and detects the saturation temperature of the refrigerant flowing through the heat source side heat exchanger 114 .
  • the outside air temperature sensor 136 is provided on the outer surface of the housing of the heat medium circulation system 100 and detects the outside air temperature.
  • the incoming water temperature sensor 137 detects the temperature of the heat medium flowing into the utilization side heat exchanger 112 provided in the heat medium circuit 120 .
  • the outgoing water temperature sensor 138 detects the temperature of the heat medium flowing out from the utilization side heat exchanger 112 .
  • a gas sensor 139 detects the concentration of combustible gas discharged from the deaerator 128 .
  • the controller 131 performs heating operation or cooling operation based on input information of the user interface 132 .
  • the controller 131 controls the compressor 111 at a rotation speed determined based on the detection value of the outside air temperature sensor 136 , the detection value of the water temperature sensor 138 , and the water temperature set value of the user interface 132 .
  • the controller 131 compares the detection value of the discharge temperature sensor 134 with the detection value of the high pressure side pressure sensor 133 and the discharge temperature target value determined based on the detection value of the heat source side heat exchanger temperature sensor 135. while controlling the throttle amount of the expansion device 113 .
  • the controller 131 controls the rotation speed of the conveying pump 121 so that the difference between the detection value of the outgoing water temperature sensor 138 and the detection value of the incoming water temperature sensor 137 is a predetermined temperature difference.
  • the controller 131 controls the voltage applied to the heater element 150 of the heating device 127 so that the detected value of the outflow temperature sensor 138 becomes the outflow temperature set value.
  • FIG. 4 schematically shows the flow of the refrigerant gas when the refrigerant gas mixed in the heat medium is separated by the degassing device 128 and discharged into the outdoor atmosphere.
  • the refrigerant gas is mixed with the heat medium
  • the heat medium circuit 120 is circulated by the conveying pump 121 .
  • the refrigerant gas that has flowed out of the use-side heat exchanger 112 flows through the heating device 127 and then flows into the degassing device 128 .
  • the refrigerant gas that has flowed into the degassing device 128 is separated from the heat medium due to the decrease in flow velocity due to the expansion of the passage diameter and the buoyancy of the gas, and stays in the upper part of the degassing device 128 .
  • the liquid level of the heat medium inside the degassing device 128 is lowered, and the float valve is lowered.
  • the accumulated refrigerant gas is discharged into the outdoor atmosphere through the discharge port.
  • the refrigerant gas discharged into the atmosphere is diffused, and the generation of combustible space is more reliably suppressed.
  • the heat medium outlet portion 152 of the heating device 127 may be provided at a higher position (upper side) than the heater element 150 of the heating device 127 . Also, the heat medium inlet 151 of the heating device 127 may be provided at a lower position (lower side) than the heat medium outlet 152 .
  • the heater element 150 of the heating device 127 is preferably heated so that the surface temperature of the heater element 150 is lower than the ignition point of the coolant.
  • the first shutoff valve 129a and the second shutoff valve 129b are electromagnetic shutoff valves.
  • the electromagnetic coil is energized to close the first shutoff valve 129a and the second shutoff valve 129b, and the circulation of the heat medium in the heat medium circuit 120 is stopped.
  • the user instructs to start the heating operation or the cooling operation by operating the user interface 132 (step S1).
  • the control device 130 operates the compressor 111 and the conveying pump 121, controls their rotational speeds, and adjusts the opening degree of the expansion device 113 (step S2).
  • the controller 130 causes the gas sensor 139 to detect the refrigerant concentration Cr near the outlet of the deaerator 128 (step S3).
  • the control device 130 compares the refrigerant concentration Ca and the refrigerant concentration Cr set in advance, and determines whether or not the refrigerant concentration Cr is equal to or higher than the refrigerant concentration Ca (step S4).
  • the control device 130 determines that the refrigerant is not leaking into the heat medium circuit 120, and continues the operation.
  • control device 130 determines that refrigerant gas is leaking into heat medium circuit 120 . Then, the control device 130 stops the operation of the compressor 111 and the transport pump 121 (step S5). Next, the control device 130 energizes the first shutoff valve 129a and the second shutoff valve 129b to operate the first shutoff valve 129a and the second shutoff valve 129b in the closing direction, thereby stopping the flow of the heat medium. (step S6).
  • heat medium circulation system 100 includes refrigerant circuit 110 , heat medium circuit 120 , carrier pump 121 , heating device 127 , and degassing device 128 .
  • Refrigerant circuit 110 is a combustible refrigerant vapor compression refrigeration cycle.
  • a compressor 111 , a user-side heat exchanger 112 , an expansion device 113 , and a heat source-side heat exchanger 114 are annularly connected to the refrigerant circuit 110 .
  • Heat medium circuit 120 circulates a liquid heat medium that heats and cools the load on the user side.
  • the conveying pump 121 circulates the heat medium in the heat medium circuit 120 .
  • the heating device 127 electrically heats the heat medium.
  • the deaerator 128 selectively discharges gas in the heat medium circuit 120 to the outdoor atmosphere outside the heat medium circuit 120 .
  • the conveying pump 121 is installed upstream of the utilization side heat exchanger 112, the heating device 127 is arranged downstream of the utilization side heat exchanger 112 and on a higher side than the utilization side heat exchanger 112, and the degassing device. 128 is arranged downstream of the heating device 127 and on a higher side than the heating device 127 .
  • the conveying pump 121 is positioned upstream of the utilization side heat exchanger 112 . Therefore, it is possible to more reliably suppress stagnation of combustible gas that occurs when the refrigerant leaking from the user-side heat exchanger 112 flows into the transfer pump 121, causing air entrapment and stopping the pump due to air entrapment. .
  • the heating device 127 is located downstream of the usage-side heat exchanger 112 and higher than the usage-side heat exchanger 112, and the degassing device 128 is downstream of the heating device 127 and higher than the heating device 127. Located in Therefore, the deposited combustible gas can be guided into the degassing device 128 without staying in the heating device 127 and discharged to the outside.
  • the heat medium outlet portion 152 of the heating device 127 may be arranged higher than the heater element 150 of the heating device 127 . Furthermore, the heat medium inlet section 151 of the heating device 127 may be arranged lower than the heat medium outlet section 152 .
  • the heat medium flows upward from the heating device 127 . Therefore, when the combustible refrigerant leaks from the user-side heat exchanger 112 into the heat medium circuit 120, the accumulation of the combustible refrigerant and air above the heating device 127 is suppressed. Moreover, even when retention occurs, the combustible refrigerant and air only stay up to a position higher than the heater element 150 .
  • the retained combustible refrigerant does not directly contact the surface of the heater element 150 . This further improves safety.
  • the surface temperature of the heater element 150 of the heating device 127 may be heated to be lower than the temperature of the ignition point of the flammable refrigerant enclosed in the refrigerant circuit 110 .
  • control device 130 determines that the flammable refrigerant has leaked into heat medium circuit 120
  • control device 130 controls first shutoff valve 129a and second shutoff valve 129b to close. You may
  • the first cutoff valve 129a and the second cutoff valve 129b are closed, so that the circulation of the heat medium mixed with the refrigerant gas stops more quickly, and the combustible refrigerant can move to the user terminal 122. Suppressed. Therefore, safety is further improved.
  • the control device 130 detects heat. It may be determined that the combustible refrigerant has leaked into the medium circuit 120 .
  • the combustible refrigerant may be R32 or a mixed refrigerant containing 70% by weight or more of R32, or propane or a mixed refrigerant containing propane.
  • the global warming potential is low, and even if the refrigerant leaks, the adverse impact on the environment can be suppressed. Therefore, environmental performance is improved.
  • the cooling/heating water heater has been described as an example of the heat medium circulation system 100 .
  • the heat medium circulation system 100 can cool or heat liquid. Therefore, heat medium circulation system 100 is not limited to an air conditioner. However, if a cooling/heating water heater is used as the heat medium circulation system 100, the annual heat demand of the house can be met. Alternatively, a cold/hot water chiller may be used as the heat medium circulation system 100 . If a hot/cold water chiller is used as the heat medium circulation system 100, it is possible to cope with the heat load of heating and cooling used in the factory or the like, so that the energy efficiency of the factory can be improved.
  • an air purge valve using a float valve has been described as an example of the degassing device 128 .
  • the degassing device 128 may be any device as long as the gas is discharged from the heat medium circuit 120 when the gas is mixed in the heat medium. Therefore, degassing device 128 is not limited to an air purge valve. However, if an air purge valve is used as the degassing device 128, the air in the heat medium circuit 120 can be removed when the heat medium is filled in the installation work, so the construction work is inexpensive.
  • a pressure relief valve that simultaneously discharges the heat medium and the refrigerant gas when the pressure in the heat medium circuit 120 rises may be used. If a pressure relief valve is used as the degassing device 128, it is possible to suppress the pressure increase when the refrigerant leaks into the heat medium circuit 120, and to suppress the breakage of the piping. Therefore, there is an effect that the reliability is increased.
  • the gas sensor 139 is used as an example of the refrigerant leakage detection sensor. Any leak detection sensor may be used as long as it can determine that the refrigerant has leaked from the refrigerant circuit 110 into the heat medium circuit 120 . Therefore, the refrigerant leakage detection sensor is not limited to the gas sensor 139, ie, the refrigerant concentration sensor. However, if a refrigerant concentration sensor is used as the refrigerant leakage detection sensor, it can be realized with a simple configuration. Further, as a coolant leakage detection sensor, a microswitch or a Hall IC may be used to detect the opening of the valve of the coolant discharging device. If the opening of the valve of the refrigerant discharge device is detected, the structure is simple, so there is an effect that the size and weight can be reduced.
  • the configuration in which the heater element 150 is installed has been described.
  • the heater element 150 of the heating device 127 may be configured to heat the heat medium flowing into the heating device 127 . Therefore, the installation position of the heater element 150 is not limited within the heating device 127 . However, if the heater element 150 is installed inside the heating device 127, the heat medium can be directly heated, so that the heat exchange efficiency can be increased. Also, the heater element 150 of the heating device 127 may be installed on the outer surface of the heating device 127 . If the heater element 150 is installed on the outer surface of the heating device 127 , the surface of the heater element 150 will not come into direct contact with the refrigerant gas when the refrigerant leaks into the heat medium circuit 120 .
  • shutoff valves 129a and 129b circuits installed between the transfer pump 121 and the user side heat exchanger 112 and between the user side heat exchanger 112 and the switching valves 124a and 124b are provided. explained.
  • the shutoff valves 129a and 129b may be installed at positions where the refrigerant does not flow into the living space when the refrigerant leaks into the heat medium circuit 120. FIG. Therefore, the installation positions of the shutoff valves 129a and 129b are not limited to between the transfer pump 121 and the user side heat exchanger 112 or between the user side heat exchanger 112 and the switching valves 124a and 124b.
  • shutoff valves 129a and 129b downstream of the discharge device, the leaked refrigerant existing in the heat medium circuit 120 between the shutoff valves 129a and 129b is released into the atmosphere even after shutting off the shutoff valves 129a and 129b. can be discharged. Therefore, safety is further improved.
  • the present disclosure is applicable to heat medium circulation systems in which leakage of combustible refrigerant may occur in the heat medium circuit. Specifically, the present disclosure is applicable to hot water heaters, commercial chillers, and the like.
  • Heat medium circulation system 110 Refrigerant circuit 111 Compressor 112 Use side heat exchanger 113 Expansion device 114 Heat source side heat exchanger 115 Four-way valve 116 Piping 120 Heat medium circuit 121 Conveying pump (conveying device) 122 user terminal 123 hot water storage tank 124a first switching valve 124b second switching valve 126 heat medium pipe 127 heating device 128 degassing device 129a first shutoff valve 129b second shutoff valve 130 control device 131 controller 132 user interface 133 high pressure side pressure sensor 134 discharge temperature sensor 135 heat source side heat exchange temperature sensor 136 outside air temperature sensor 137 incoming water temperature sensor 138 outgoing water temperature sensor 139 gas sensor 150 heater element 151 heat medium inlet 152 heat medium outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

La présente invention fait appel à : un circuit de fluide frigorigène 110 dans lequel un compresseur 111, un échangeur de chaleur côté utilisation 112, un moyen d'expansion 113 et un échangeur de chaleur côté source de chaleur 114 sont reliés de manière annulaire ; un circuit de milieu caloporteur 120 qui permet la circulation d'un milieu caloporteur refroidi ou chauffé au niveau de l'échangeur de chaleur côté utilisation 112 par l'utilisation d'un fluide frigorigène évacué du compresseur 111 ; et un dispositif de commande 130. Le circuit de milieu caloporteur 120 est pourvu d'un dispositif de circulation 121 destiné à provoquer la circulation du milieu caloporteur ; d'un dispositif de chauffe 127 destiné à chauffer électriquement le milieu caloporteur ; et d'un dispositif de désaération 128 destiné à évacuer le gaz circulant à l'intérieur du circuit de milieu caloporteur 120 vers l'extérieur du circuit de milieu caloporteur 120. Le dispositif de circulation 121 est disposé en amont de l'échangeur de chaleur côté utilisation 112, le dispositif de chauffe 127 est disposé en aval de l'échangeur de chaleur côté utilisation 112 et au niveau du côté plus haut de l'échangeur de chaleur côté utilisation 112, et le dispositif de désaération 128 est disposé en aval du dispositif de chauffe 127 et du côté plus haut du dispositif de chauffe 127, moyennant quoi l'on obtient un système de circulation de milieu caloporteur 100 qui diffuse en toute sécurité du fluide frigorigène qui a fui dans une atmosphère extérieure et améliore en outre la sécurité.
PCT/JP2022/034874 2021-11-29 2022-09-20 Système de circulation de milieu caloporteur WO2023095427A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-193406 2021-11-29
JP2021193406 2021-11-29

Publications (1)

Publication Number Publication Date
WO2023095427A1 true WO2023095427A1 (fr) 2023-06-01

Family

ID=86539191

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/034874 WO2023095427A1 (fr) 2021-11-29 2022-09-20 Système de circulation de milieu caloporteur

Country Status (1)

Country Link
WO (1) WO2023095427A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013038577A1 (fr) * 2011-09-13 2013-03-21 三菱電機株式会社 Dispositif de pompe à chaleur et procédé de commande de dispositif de pompe à chaleur
WO2018235125A1 (fr) * 2017-06-19 2018-12-27 三菱電機株式会社 Dispositif d'utilisation de pompe à chaleur
JP2020128833A (ja) * 2019-02-08 2020-08-27 パナソニックＩｐマネジメント株式会社 ヒートポンプシステム
JP2021055866A (ja) * 2019-09-27 2021-04-08 パナソニックＩｐマネジメント株式会社 水熱交換システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013038577A1 (fr) * 2011-09-13 2013-03-21 三菱電機株式会社 Dispositif de pompe à chaleur et procédé de commande de dispositif de pompe à chaleur
WO2018235125A1 (fr) * 2017-06-19 2018-12-27 三菱電機株式会社 Dispositif d'utilisation de pompe à chaleur
JP2020128833A (ja) * 2019-02-08 2020-08-27 パナソニックＩｐマネジメント株式会社 ヒートポンプシステム
JP2021055866A (ja) * 2019-09-27 2021-04-08 パナソニックＩｐマネジメント株式会社 水熱交換システム

Similar Documents

Publication Publication Date Title
WO2018105102A1 (fr) Dispositif de pompe à chaleur
JP5818900B2 (ja) ヒートポンプ装置
JP6887496B2 (ja) ヒートポンプ利用機器
US20130192283A1 (en) Air-conditioning apparatus
WO2018167861A1 (fr) Dispositif de pompe à chaleur et son procédé d'installation
JP5931189B2 (ja) 空気調和装置
JP2022047569A (ja) 熱媒体循環システム
JP5570618B2 (ja) 空気調和装置
JPWO2019038797A1 (ja) 空気調和装置および膨張弁ユニット
JPWO2018116404A1 (ja) ヒートポンプ利用機器
JP2007163071A (ja) ヒートポンプ式冷暖房装置
US20220290885A1 (en) Air conditioning system
JP2009264715A (ja) ヒートポンプ温水システム
JP2022162184A (ja) 熱媒体循環システム
JP7494504B2 (ja) ヒートポンプ装置
WO2023095427A1 (fr) Système de circulation de milieu caloporteur
JP6687116B2 (ja) ヒートポンプ装置
WO2023062989A1 (fr) Système de circulation de milieu caloporteur
JP7457888B2 (ja) 熱媒体循環システム
JP2005300057A (ja) ヒートポンプ給湯装置
WO2018042490A1 (fr) Dispositif à cycle de réfrigération
JP2022168986A (ja) 熱媒体循環装置
JP2020071008A (ja) ヒートポンプ装置
WO2024100857A1 (fr) Dispositif de pompe à chaleur
JP4124164B2 (ja) ヒートポンプ給湯装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22898212

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2023563529

Country of ref document: JP

Kind code of ref document: A