WO2015075882A1 - Dispositif de cycle de pompe à chaleur - Google Patents

Dispositif de cycle de pompe à chaleur Download PDF

Info

Publication number
WO2015075882A1
WO2015075882A1 PCT/JP2014/005595 JP2014005595W WO2015075882A1 WO 2015075882 A1 WO2015075882 A1 WO 2015075882A1 JP 2014005595 W JP2014005595 W JP 2014005595W WO 2015075882 A1 WO2015075882 A1 WO 2015075882A1
Authority
WO
WIPO (PCT)
Prior art keywords
defrosting operation
evaporator
air
temperature
heat
Prior art date
Application number
PCT/JP2014/005595
Other languages
English (en)
Japanese (ja)
Inventor
昌宏 高津
竹内　清
Original Assignee
株式会社デンソー
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=53179177&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2015075882(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to DE112014005287.6T priority Critical patent/DE112014005287B4/de
Publication of WO2015075882A1 publication Critical patent/WO2015075882A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/001—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0095—Devices for preventing damage by freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F24D2200/123—Compression type heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/11—Sensor to detect if defrost is necessary

Definitions

  • the present disclosure relates to a heat pump cycle device that performs a defrosting operation when the evaporator is frosted.
  • heat pump cycle apparatuses that perform a defrosting operation by melting and removing frost attached to an evaporator.
  • a defrosting operation performed by the heat pump cycle device it is conceivable to cause the high-temperature refrigerant discharged from the compressor to flow into the evaporator, thereby melting the frost attached to the evaporator using the high-temperature refrigerant as a heat source.
  • Patent Document 1 does not describe anything about restarting the operation of the heat pump cycle device after the defrosting operation and continuously operating the heat pump cycle device.
  • the present disclosure aims to enable continuous operation in a heat pump cycle apparatus that performs a defrosting operation by stopping the compressor.
  • the heat pump cycle device of the present disclosure operates a heat pump cycle having a compressor, a radiator, a decompressor, and an evaporator, and operates the compressor to evaporate using heat of a high-temperature refrigerant discharged from the compressor.
  • 1st defrosting operation which performs defrosting of an evaporator
  • the defrosting operation which can perform the 2nd defrosting operation which stops a compressor and defrosts an evaporator using the heat of the air which passes an evaporator
  • a control unit is provided.
  • the defrosting operation control unit changes from the second defrosting operation to the first defrosting operation when the first defrosting operation transition condition for shifting to the first defrosting operation is satisfied after starting the second defrosting operation.
  • a defrosting operation transition unit for transition is provided.
  • the transition to the first defrosting operation using the heat of the high-temperature refrigerant is performed early.
  • the defrosting operation can be terminated, and the continuous operation of the heat pump cycle can be appropriately performed with the defrosting operation in between.
  • the “first defrosting operation transition condition” is established when it is predicted that the defrosting will not be completed until the next heat pump cycle is restarted even if the second defrosting operation is continued. Can do.
  • FIG. 1 is an overall configuration diagram of a heat pump hot water heater according to a first embodiment. It is a block diagram of the heat pump unit which concerns on 1st Embodiment. It is a flowchart which shows the defrost control process which concerns on 1st Embodiment. It is a whole block diagram of the heat pump type hot water heater which concerns on 2nd Embodiment. It is a flowchart which shows the energy-saving defrost driving
  • the heat pump type hot water heater (heat pump cycle device) 10 includes a hot water storage tank 11, a heating device 12, a first hot water circulating circuit 13, a second hot water circulating circuit 15, and a heat pump cycle 17, as shown in FIG.
  • the hot water storage tank 11 stores hot water.
  • the heating device 12 heats the interior of the house 1.
  • the first hot water supply circuit 13 circulates hot water in the hot water storage tank 11 for heating.
  • the second hot water supply circuit 15 circulates the hot water in the hot water storage tank 11 for heat exchange with the refrigerant.
  • the heat pump cycle 17 heats hot water.
  • the heating device 12 is configured as a heating unit 100, and the hot water storage tank 11 is configured as a tank unit 200.
  • Each component of the heat pump cycle 17 is accommodated in one housing or frame structure, and is integrated as a heat pump unit 300.
  • the heating unit 100 is located inside the house 1, and the tank unit 200 and the heat pump unit 300 are located outside the house 1.
  • the hot water storage tank 11 is formed of a metal (for example, stainless steel) having excellent corrosion resistance.
  • the hot water storage tank 11 has a heat insulating structure and is a tank that can keep hot hot water for a long time.
  • the hot water stored in the hot water storage tank 11 flows out from the outlet provided in the upper part of the hot water storage tank 11 and is supplied to the heating device 12 for use in heating applications such as floor heating.
  • hot water used for heating in the heating device 12 is recirculated from the inlet provided in the lower part of the hot water storage tank 11.
  • the heating device 12 of the present embodiment is a floor heating device that heats the indoor floor by heating the indoor floor with hot water.
  • the heating device 12 is not limited to a floor heating device, and may be a device that heats an indoor space, for example.
  • the first hot water circulating circuit 13 is provided with a first hot water pump 14 as a pumping section for circulating hot water in the heating device 12, and the second hot water circulating circuit 15 has hot water supplied to the heat exchanger 19.
  • a second hot-water supply pump 16 is disposed as a pressure feed unit for circulating the water. These hot water supply pumps 14 and 16 can change the flow rate of hot water to be pumped by changing the rotation speed. The operations of the hot water pumps 14 and 16 are controlled by a control signal output from a control device (defrosting operation control unit) 26 described later.
  • the heat pump cycle 17 is a refrigeration cycle in which a compressor 18, a heat exchanger 19, an expansion valve 20, an evaporator 21 and the like are sequentially connected by piping.
  • the heat pump cycle 17 employs carbon dioxide as a refrigerant, and constitutes a supercritical refrigeration cycle in which the pressure of the high-pressure refrigerant discharged from the compressor 18 is equal to or higher than the critical pressure of the refrigerant.
  • the compressor 18 sucks the refrigerant in the heat pump cycle 17 and compresses and discharges the refrigerant until it reaches a critical pressure or higher.
  • a fixed capacity type electric compressor can be used as the compressor 18, for example.
  • the refrigerant discharge port of the compressor 18 is connected to the refrigerant passage 19b inlet side of the heat exchanger 19.
  • the heat exchanger 19 is a heat exchanger configured to include a hot water supply fluid passage 19a through which hot water supply fluid passes and a refrigerant passage 19b through which high-temperature and high-pressure refrigerant discharged from the compressor 18 passes.
  • the heat exchanger 19 is a heating heat exchanger (heat radiator) that heats the hot water supply fluid by dissipating the amount of heat of the high-temperature and high-pressure refrigerant discharged from the compressor 18 to the hot water supply fluid.
  • the hot water supply fluid is a fluid to be heated.
  • the supercritical refrigerating cycle is comprised as mentioned above. Therefore, the refrigerant passing through the refrigerant passage 19b of the heat exchanger 19 radiates heat in a supercritical state without condensing.
  • the inlet side of the expansion valve 20 is connected to the outlet side of the refrigerant passage 19b of the heat exchanger 19.
  • the expansion valve 20 is a pressure reducer.
  • the expansion valve 20 is a variable throttle mechanism that decompresses and expands the high-pressure refrigerant that has flowed out of the refrigerant passage 19b of the heat exchanger 19.
  • An evaporator 21 is connected to the outlet side of the expansion valve 20.
  • the evaporator 21 performs heat exchange between the low-pressure refrigerant decompressed by the expansion valve 20 and the outside air (outdoor air) blown by the blower fan 21a, thereby evaporating the low-pressure refrigerant and exerting an endothermic effect. It is a heat exchanger.
  • An upstream air temperature sensor (first temperature detection unit) 22 that detects the temperature of the outside air before passing through the evaporator 21 is provided on the upstream side of the evaporator 21 in the air flow direction.
  • a downstream air temperature sensor (second temperature detector) 23 that detects the temperature of the outside air after passing through the evaporator 21 is provided on the downstream side in the air flow direction of the evaporator 21.
  • the heat pump type hot water heater 10 is provided with an evaporation temperature sensor 24 for detecting the refrigerant evaporation temperature of the refrigerant evaporated in the evaporator 21 and an outside air temperature sensor 25 for detecting the outside air temperature.
  • the control device 26 includes a known microcomputer including a CPU, a ROM, a RAM, and the like and peripheral circuits thereof. Detection signals from the upstream air temperature sensor 22, the downstream air temperature sensor 23, the evaporation temperature sensor 24, the outside air temperature sensor 25, and the like are input to the control device 26. Moreover, the control apparatus 26 outputs a control signal to the hot water supply water pumps 14 and 16, the compressor 18, the expansion valve 20, the ventilation fan 21a, etc., and controls these operation
  • the heat pump type water heater 10 of the present embodiment is provided with a plurality of temperature sensors (not shown) for detecting the temperature of the hot water inside the outer wall surface of the hot water storage tank 11, and the detection signals of these temperature sensors. Is input to the control device 26. And the control apparatus 26 can detect the temperature gradient of the up-down direction of the hot water storage tank 11 from the detection signal of these temperature sensors, and can estimate the amount of hot water storage in the hot water storage tank 11 from this temperature gradient of the up-down direction.
  • the heat pump type water heater 10 of the present embodiment performs a defrosting operation in which the boiling operation is stopped and frost is removed from the evaporator 21 when frosting occurs in the evaporator 21.
  • a 1st defrost operation and a 2nd defrost operation can be performed as a defrost operation.
  • the compressor 18 is operated to cause the high-temperature refrigerant discharged from the compressor 18 to flow into the evaporator 21, thereby melting the frost generated in the evaporator 21 by the heat of the high-temperature refrigerant. It is a normal defrosting operation to remove.
  • the blower fan 21a is operated without operating the compressor 18, and the outside air is supplied to the evaporator 21, so that the frost generated in the evaporator 21 by the heat of the outside air is melted and removed. It is an energy-saving defrosting operation.
  • the second hot water supply water pump 16 is stopped to suppress the movement of heat from the refrigerant to the hot water supply in the heat exchanger 19 and suppress the decrease in the refrigerant temperature.
  • the operation of the heat pump water heater 10 is started by outputting a boiling operation start request signal from an operation panel (not shown) in a state where power is supplied to the heat pump water heater 10 from the outside. A boiling operation is performed.
  • the defrosting start condition is established when the refrigerant evaporation temperature detected by the evaporation temperature sensor 24 falls below a predetermined temperature.
  • the energy-saving defrosting condition is established when hot water that is expected to be necessary during the energy-saving defrosting operation exists in the hot water storage tank 11 or when hot water can be stopped for a long time without further need. Therefore, in the determination process of S12, is the amount of hot water stored in the hot water storage tank 11 estimated based on detection signals of a plurality of temperature sensors (not shown) provided on the outer wall surface of the hot water storage tank 11 exceeding a predetermined amount? What is necessary is just to determine.
  • S14 defrosting end determination unit
  • air blowing to the evaporator 21 is stopped during the defrosting operation in order to prevent the heat of the defrosting refrigerant from being taken away by the air.
  • the determination of the end of defrosting is made based on whether the temperature of the evaporator 21 has reached a predetermined temperature (for example, 10 ° C.).
  • S16 defrosting end determination unit
  • frost is attached to the evaporator 21
  • the air passing through the evaporator 21 gives heat to the frost, so the temperature of the downstream air is lower than the upstream air of the evaporator 21, and the upstream side
  • frost melt dissolves and the temperature of the evaporator 21 rises, the temperature difference of the upstream air of the evaporator 21 and downstream air will become small.
  • the defrost termination condition is satisfied when the difference between the air temperature detected by the upstream air temperature sensor 22 and the air temperature detected by the downstream air temperature sensor 23 is below a predetermined value. It is determined that
  • the process proceeds to S18.
  • the normal defrost operation transition condition first defrost operation transition condition
  • S17 defrost operation transition section. Determine whether or not.
  • the normal defrosting operation transition condition is satisfied when it is predicted that the defrosting will not be completed until the boiling operation is resumed even if the energy saving defrosting operation is continued. Specifically, the normal defrosting operation transition condition is satisfied when a predetermined time has elapsed since the start of the energy saving defrosting operation.
  • the predetermined time for establishing the normal defrosting operation transition condition is related to the amount of hot water stored in the hot water storage tank 11 and is set as an elapsed time that is predicted to be less than the lower limit value. Can do.
  • the hot water storage amount (storage amount) in the hot water storage tank 11 estimated from detection signals of a plurality of temperature sensors (not shown) provided on the outer wall surface of the hot water storage tank 11 when the energy saving defrosting operation is being performed. When the value falls below the lower limit, the normal defrosting operation transition condition may be satisfied.
  • the blower fan 21a is operated in a state where the compressor 18 is stopped.
  • An energy-saving defrosting operation for supplying outside air to the evaporator 21 can be executed.
  • the energy-saving defrosting operation when it is predicted that the defrosting will not be completed by the restart of the next boiling operation even if the energy-saving defrosting operation is continued, the energy-saving defrosting operation is normally performed. Transition to defrosting operation. Thereby, the defrosting operation can be completed at an early stage, and the continuous boiling operation with the defrosting operation sandwiched can be appropriately performed.
  • finished is performed based on the temperature difference of the upstream air of the evaporator 21, and downstream air.
  • the temperature distribution of the upstream air temperature and the downstream air temperature of the evaporator 21 is small.
  • the defrost end determination is performed based on the surface temperature of the evaporator 21 where the temperature distribution is likely to occur. Compared to the case, it can be accurately determined whether or not the defrosting is completed. Thereby, it is possible to avoid stopping the boiling operation in order to restart the boiling operation in a state where frost remains in the evaporator 21 and perform the defrosting operation again.
  • an exhaust duct 2 is provided for discharging indoor air (inside air) from the house 1 to the outside as exhaust.
  • One end side of the exhaust duct 2 is connected to the house 1, and the other end side is located on the upstream side of the air flow of the evaporator 21.
  • a ventilation fan 2a is provided at the end of the exhaust duct 2 on the house 1 side. By operating the ventilation fan 2a, the inside air (exhaust air) is exhausted to the upstream side of the air flow of the evaporator 21 through the exhaust duct 2. Is done.
  • the ventilation fan 2a and stopping the blower fan 21a when the outside air temperature is low, by operating the ventilation fan 2a and stopping the blower fan 21a, only the inside air (exhaust) is supplied to the evaporator 21, and the heat of the inside air (exhaust) Perform energy-saving defrosting operation using Further, when the outside air temperature is high, the ventilation fan 2a and the blower fan 21a are operated to supply the inside air (exhaust air) and outside air to the evaporator 21, and the energy of the inside air (exhaust air) and outside air is utilized to save energy. Perform frost operation.
  • the inside air (exhaust gas) is supplied to the upstream side of the air flow of the evaporator 21 during the energy saving defrosting operation.
  • the inside air is hotter than the outside air. Therefore, the inside air (exhaust) is supplied by supplying the inside air to the evaporator 21 and performing the energy saving defrosting operation.
  • the energy-saving defrosting operation can be performed by effectively using.
  • the exhaust heat recovery device 3 is provided in the house 1.
  • heat exchange is performed between the outside air introduced into the room by the outside air introduction fan 3a and the inside air (exhaust gas) discharged outside by the ventilation fan 3b in the heat exchanger 3c.
  • the heat of the inside air (exhaust gas) is recovered to the outside air.
  • the inside air (exhaust gas) that has passed through the exhaust heat recovery device 3 is supplied to the upstream side of the air flow of the evaporator 21 via the exhaust duct 2.
  • the heating unit 100, the tank unit 200, and the heat pump unit 300 are located inside the house 1. Further, the exhaust heat recovery device 3, the tank unit 200, and the heat pump unit 300 are integrated. Furthermore, the heat pump cycle 17 and the exhaust heat recovery device 3 are integrated.
  • the energy saving defrosting operation of the third embodiment is performed in the same manner as the second embodiment described with reference to FIG. That is, when the outside air temperature exceeds a predetermined temperature (for example, 5 ° C.), the ventilation fan 3b and the blower fan 21a are operated to supply the inside air (exhaust air) and the outside air to the evaporator 21, and the inside air (exhaust air). And defrosting is performed using the heat of the outside air.
  • a predetermined temperature for example, 5 ° C.
  • the ventilation fan 3b and the blower fan 21a are operated to supply the inside air (exhaust air) and the outside air to the evaporator 21, and the inside air (exhaust air).
  • defrosting is performed using the heat of the outside air.
  • the ventilation fan 3b is operated and the blower fan 21a is stopped, so that only the inside air (exhaust) is supplied to the evaporator 21, and the heat of the inside air (exhaust) Defrost using
  • the inside air (exhaust gas) that has passed through the exhaust heat recovery device 3 during the energy saving defrosting operation is supplied to the upstream side of the air flow of the evaporator 21.
  • the energy-saving defrosting operation can be performed by effectively using the inside air recovered by the exhaust heat in the exhaust heat recovery device 3.
  • carbon dioxide is used as the refrigerant in the supercritical refrigeration cycle.
  • a refrigerant whose high pressure does not exceed the critical pressure such as refrigerants such as Freon and HC, is used.
  • a subcritical refrigeration cycle may be configured.
  • finish determination (S14, S16) is performed based on the temperature difference of the upstream air of the evaporator 21, and downstream air, it is not restricted to this but it defrosts in a different aspect. An end determination may be made.
  • a differential pressure sensor (pressure difference detection unit) 27 that detects a pressure difference between the air upstream of the air flow and the air downstream of the evaporator 21 is provided.
  • the defrosting end determination (S14, S16) may be performed based on the detected pressure difference between the upstream air and the downstream air of the evaporator 21.
  • frost is attached to the evaporator 21
  • the ventilation resistance is increased. Therefore, the pressure of the downstream air is lower than the upstream air of the evaporator 21, and the pressure difference between the upstream air and the downstream air becomes large.
  • the frost melts the pressure difference between the upstream air and the downstream air of the evaporator 21 decreases.
  • the defrosting end determination is performed based on the pressure difference between the upstream air and the downstream air of the evaporator 21. It is possible to determine whether or not defrosting has been completed more accurately.
  • an evaporator temperature sensor (evaporator temperature detection unit) 28 for detecting the surface temperature (fin temperature) of the evaporator 21 is provided, and the evaporator 21 detected by the evaporator temperature sensor 28 is provided.
  • finish of defrosting determination S14, S16
  • finish of defrosting determination S14, S16
  • the tank unit 200 and the heat pump unit 300 are located outside the house 1, even if the tank unit 200 and the heat pump unit 300 are located inside the house 1, Good. Furthermore, in the third embodiment, the tank unit 200 and the heat pump unit 300 are located inside the house 1, but the tank unit 200 and the heat pump unit 300 may be located outside the house 1.
  • the hot water heated by the heat pump cycle 17 is supplied to the heating apparatus 12 via the hot water storage tank 11, the hot water heated by the heat pump cycle 17 is directly supplied to the heating apparatus 12. Also good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

L'invention concerne un dispositif de cycle de pompe à chaleur comprenant : un cycle de pompe à chaleur (17) possédant un compresseur (18), un radiateur (19), un décompresseur (20) et un évaporateur (21) ; et un dispositif de commande d'opération de dégivrage (26) pouvant exécuter une première opération de dégivrage caractérisée en ce que le compresseur (18) est mis en œuvre et que la chaleur d'un réfrigérant à température élevée évacué du compresseur (18) est utilisée pour dégivrer l'évaporateur (21), et une seconde opération de dégivrage, caractérisée en ce que le compresseur (18) est arrêté et que la chaleur de l'air passant à travers l'évaporateur (21) est utilisée pour dégivrer l'évaporateur (21). Le dispositif de commande d'opération de dégivrage comporte une unité de changement d'opération de dégivrage pour passer de la seconde opération de dégivrage à la première opération de dégivrage lorsqu'une première condition de changement d'opération de dégivrage pour passer à la première opération de dégivrage est satisfaite après que la seconde opération de dégivrage a été démarrée.
PCT/JP2014/005595 2013-11-20 2014-11-07 Dispositif de cycle de pompe à chaleur WO2015075882A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112014005287.6T DE112014005287B4 (de) 2013-11-20 2014-11-07 Wärmepumpenkreislaufvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013239602A JP6123650B2 (ja) 2013-11-20 2013-11-20 ヒートポンプサイクル装置
JP2013-239602 2013-11-20

Publications (1)

Publication Number Publication Date
WO2015075882A1 true WO2015075882A1 (fr) 2015-05-28

Family

ID=53179177

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/005595 WO2015075882A1 (fr) 2013-11-20 2014-11-07 Dispositif de cycle de pompe à chaleur

Country Status (3)

Country Link
JP (1) JP6123650B2 (fr)
DE (1) DE112014005287B4 (fr)
WO (1) WO2015075882A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017172901A (ja) * 2016-03-24 2017-09-28 株式会社長府製作所 換気装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017026254A (ja) * 2015-07-27 2017-02-02 株式会社ノーリツ 給湯装置
JP2018091536A (ja) * 2016-12-01 2018-06-14 株式会社デンソー 冷凍サイクル装置
DE102021104741A1 (de) 2021-02-26 2022-09-01 Robert Bosch Gesellschaft mit beschränkter Haftung Heizeinrichtung, Heizsystem und Verfahren
US11835277B2 (en) * 2021-03-31 2023-12-05 Rheem Manufacturing Company Defrost systems and methods for heat pump water heaters

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05296646A (ja) * 1992-04-16 1993-11-09 Fuji Electric Co Ltd ショーケースの除霜制御装置
JPH10160303A (ja) * 1996-11-28 1998-06-19 Denso Corp 冷凍機の除霜制御装置
JP2001021241A (ja) * 1999-07-06 2001-01-26 Sanyo Electric Co Ltd 冷却システム
JP2006308241A (ja) * 2005-04-28 2006-11-09 Toyo Eng Works Ltd ヒートポンプ式空気調和装置
JP2011052899A (ja) * 2009-09-02 2011-03-17 Sunpot Co Ltd ヒートポンプ装置
JP2011080716A (ja) * 2009-10-08 2011-04-21 Hitachi Appliances Inc ヒートポンプ給湯機
JP2011174651A (ja) * 2010-02-24 2011-09-08 Mitsubishi Electric Corp 冷蔵庫および冷凍サイクル装置
WO2012168971A1 (fr) * 2011-06-08 2012-12-13 三菱電機株式会社 Dispositif de réfrigération/conditionnement d'air
JP2013040694A (ja) * 2011-08-11 2013-02-28 Daikin Industries Ltd 冷凍装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009063246A (ja) 2007-09-07 2009-03-26 Hitachi Appliances Inc ヒートポンプ給湯機
JP2012225527A (ja) 2011-04-15 2012-11-15 Hoshizaki Electric Co Ltd 冷却貯蔵庫の除霜制御装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05296646A (ja) * 1992-04-16 1993-11-09 Fuji Electric Co Ltd ショーケースの除霜制御装置
JPH10160303A (ja) * 1996-11-28 1998-06-19 Denso Corp 冷凍機の除霜制御装置
JP2001021241A (ja) * 1999-07-06 2001-01-26 Sanyo Electric Co Ltd 冷却システム
JP2006308241A (ja) * 2005-04-28 2006-11-09 Toyo Eng Works Ltd ヒートポンプ式空気調和装置
JP2011052899A (ja) * 2009-09-02 2011-03-17 Sunpot Co Ltd ヒートポンプ装置
JP2011080716A (ja) * 2009-10-08 2011-04-21 Hitachi Appliances Inc ヒートポンプ給湯機
JP2011174651A (ja) * 2010-02-24 2011-09-08 Mitsubishi Electric Corp 冷蔵庫および冷凍サイクル装置
WO2012168971A1 (fr) * 2011-06-08 2012-12-13 三菱電機株式会社 Dispositif de réfrigération/conditionnement d'air
JP2013040694A (ja) * 2011-08-11 2013-02-28 Daikin Industries Ltd 冷凍装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017172901A (ja) * 2016-03-24 2017-09-28 株式会社長府製作所 換気装置

Also Published As

Publication number Publication date
DE112014005287T5 (de) 2016-08-11
JP2015098986A (ja) 2015-05-28
DE112014005287B4 (de) 2021-10-14
JP6123650B2 (ja) 2017-05-10

Similar Documents

Publication Publication Date Title
JP5642207B2 (ja) 冷凍サイクル装置及び冷凍サイクル制御方法
JP6447742B2 (ja) 冷凍サイクル装置
US10753645B2 (en) Refrigeration cycle apparatus
WO2015075882A1 (fr) Dispositif de cycle de pompe à chaleur
JP6071648B2 (ja) 空気調和装置
EP3361185A1 (fr) Dispositif à cycle réfrigérant
JP4622990B2 (ja) 空気調和機
JP4462435B2 (ja) 冷凍装置
JP2013119954A (ja) ヒートポンプ式温水暖房機
CN104937352A (zh) 二元制冷循环装置
JP2008116156A (ja) 空気調和装置
JP2007155299A (ja) 空気調和機
EP2933579B1 (fr) Chauffe-eau à pompe de chaleur
JP2017223425A (ja) ヒートポンプシステム
WO2015194167A1 (fr) Dispositif de pompe à chaleur
EP2594867A2 (fr) Appareil de cycle de réfrigération et appareil de production d'eau chaude
JP6551783B2 (ja) ヒートポンプ装置およびこれを備えた給湯装置
JP5881339B2 (ja) 空気調和機
JP2011257098A (ja) ヒートポンプサイクル装置
JP2012007751A (ja) ヒートポンプサイクル装置
JP2006250480A (ja) 冷凍装置
WO2018008108A1 (fr) Système à cycle frigorifique
JP2017180911A (ja) ヒートポンプ式熱源装置
JP5381749B2 (ja) 冷凍サイクル装置
JP2007057148A (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: 14864552

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 112014005287

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14864552

Country of ref document: EP

Kind code of ref document: A1