WO2010109689A1 - ヒートポンプ式給湯機 - Google Patents

ヒートポンプ式給湯機 Download PDF

Info

Publication number
WO2010109689A1
WO2010109689A1 PCT/JP2009/064437 JP2009064437W WO2010109689A1 WO 2010109689 A1 WO2010109689 A1 WO 2010109689A1 JP 2009064437 W JP2009064437 W JP 2009064437W WO 2010109689 A1 WO2010109689 A1 WO 2010109689A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
temperature
heat exchanger
refrigerant
refrigerant heat
Prior art date
Application number
PCT/JP2009/064437
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
北村　哲也
和生 居山
高木　純一
Original Assignee
日立アプライアンス株式会社
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 日立アプライアンス株式会社 filed Critical 日立アプライアンス株式会社
Priority to JP2011505796A priority Critical patent/JP5378504B2/ja
Priority to CN200980157943.2A priority patent/CN102348938B/zh
Publication of WO2010109689A1 publication Critical patent/WO2010109689A1/ja

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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/02—Domestic hot-water supply systems using 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
    • 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
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers

Definitions

  • the present invention provides a liquid-refrigerant heat exchanger using a heat pump circuit in which a compressor, a liquid-refrigerant heat exchanger (including a water-refrigerant heat exchanger), an expansion valve, and an evaporator are connected by a refrigerant pipe.
  • the present invention relates to a heat pump type water heater for boiling liquid (including water).
  • a heat pump type hot water heater having a boiling function for driving a heat pump circuit using midnight power or the like to heat low temperature water and store hot water at a desired temperature in a hot water storage tank.
  • a heat pump water heater When such a heat pump water heater is operated under conditions such as a low outside air temperature, moisture in the outside air freezes on the evaporator and forms frost, thereby reducing the performance of the evaporator. For this reason, defrosting operation of an evaporator is implemented and defrosting is performed.
  • a defrosting preparation operation for reducing the flow rate of the circulation pump that circulates the water in the hot water storage tank through the water-refrigerant heat exchanger of the heat pump circuit is performed prior to the defrosting operation.
  • Patent Document 2 has been proposed (for example, Patent Document 2).
  • a bypass pipe is provided to flow the water derived from the water-refrigerant heat exchanger bypassing the hot water storage tank, and the water derived from the water-refrigerant heat exchanger is circulated through the bypass pipe during the defrost preparation operation. It has been proposed to stop the circulation pump during the defrosting operation (for example, Patent Document 3).
  • the present invention has an object to provide a heat pump type water heater that can perform a stable boiling operation by preventing freezing of water in a pipe even when the outside air condition is operated in a cryogenic environment.
  • the heat pump type hot water heater includes a compressor that compresses a refrigerant, a liquid-refrigerant heat exchanger that heats a liquid stored in a storage tank by a high-temperature, high-pressure refrigerant discharged from the compressor, An evaporator for exchanging heat between the low-temperature and low-pressure refrigerant flowing from the liquid-refrigerant heat exchanger through the expansion valve with air, a storage tank for storing the liquid heated by the liquid-refrigerant heat exchanger, A forward pipe for sending liquid to the liquid-refrigerant heat exchanger; and a return pipe for returning the liquid heated by the liquid-refrigerant heat exchanger to the storage tank, and heating the low-temperature liquid to the storage tank.
  • a high-temperature liquid introduction operation for introducing a liquid higher in temperature than the low-temperature liquid into the liquid-refrigerant heat exchanger is performed before the defrosting operation, and the liquid-refrigerant heat exchanger is operated during the defrosting operation.
  • a bypass circulation operation is performed in which the liquid flowing out from the refrigerant is circulated through the bypass pipe at a lower flow rate than in the boiling operation.
  • the heat pump type water heater configured as described above, since hot water is introduced into the liquid-refrigerant heat exchanger even during the defrosting operation, freezing in the pipe during the defrosting operation can be prevented.
  • the temperature of the refrigerant can be prevented from decreasing in the liquid-refrigerant heat exchanger, and the heat of the refrigerant can be effectively used for defrosting in the evaporator, improving the efficiency of the defrosting operation. it can.
  • the heat pump water heater further includes an outside air temperature detection unit that detects an outside air temperature, and performs the high-temperature liquid introduction operation when the temperature detected by the outside air temperature detection unit becomes a predetermined temperature or less. preferable. In this way, when the outside air temperature is such that the pipe does not freeze even if the high temperature liquid introduction operation is not performed, the high temperature liquid introduction operation is not performed and the outside air temperature at which the pipe may be frozen By performing the high temperature liquid introduction operation only in this case, it is possible to suitably prevent the energy efficiency from being unnecessarily lowered.
  • the heat pump hot water heater switches the path switching mechanism so that the liquid flowing out from the liquid-refrigerant heat exchanger at the start of the high-temperature liquid introduction operation becomes a path that bypasses the storage tank.
  • the heat pump water heater further includes an inflow liquid temperature detection unit that detects the temperature of the liquid flowing into the liquid-refrigerant heat exchanger, and the high temperature liquid introduction operation is performed at a temperature detected by the inflow liquid temperature detection unit. It is preferable that the process is terminated when either the temperature reaches a predetermined temperature or the predetermined time has passed. In this way, hot water can be reliably introduced into the liquid-refrigerant heat exchanger.
  • freezing in the pipe as described above may occur even during defrosting operation (for example, during normal boiling operation). In this case, the boiling operation becomes difficult. There is a risk of problems such as becoming impossible. In that respect, freezing can be prevented by performing the high-temperature liquid introducing operation as described above.
  • a heat pump type hot water heater includes a compressor that compresses a refrigerant, a liquid-refrigerant heat exchanger that heats a liquid stored in a storage tank by a high-temperature and high-pressure refrigerant discharged from the compressor.
  • An evaporator for exchanging heat with low-temperature, low-pressure refrigerant flowing from the liquid-refrigerant heat exchanger through an expansion valve, and a storage tank for storing liquid heated by the liquid-refrigerant heat exchanger;
  • a forward pipe for sending a low-temperature liquid to the liquid-refrigerant heat exchanger; and a return pipe for returning the liquid heated by the liquid-refrigerant heat exchanger to the storage tank, and heating the low-temperature liquid to
  • a bypass pipe that bypasses the storage tank and connects the forward pipe and the return pipe, and a path through which the liquid flowing out of the liquid-refrigerant heat exchanger is sent to the storage tank
  • a heat pump water heater comprising a path switching mechanism for switching between a path bypassing the tank and an inflow liquid temperature detection section for detecting the temperature of the liquid flowing into the liquid-refrigerant heat exchanger, the inflow liquid temperature detection section When the detected temperature is below a predetermined temperature for a pre
  • the heat pump type hot water heater includes a compressor that compresses the refrigerant, a liquid-refrigerant heat exchanger that heats the liquid stored in the storage tank by the high-temperature and high-pressure refrigerant discharged from the compressor, An evaporator for exchanging heat between the low-temperature and low-pressure refrigerant flowing from the liquid-refrigerant heat exchanger through the expansion valve with air, an outgoing pipe for sending the low-temperature liquid to the liquid-refrigerant heat exchanger, A return pipe for returning the liquid heated by the liquid-refrigerant heat exchanger to the storage tank, heating the low-temperature liquid and storing it in the storage tank, and further performing the liquid-refrigerant heat exchange A bypass pipe connecting the forward pipe and the return pipe so that the liquid flowing out from the vessel bypasses the storage tank, and a path through which the liquid flowing out from the liquid-refrigerant heat exchanger is sent to the storage tank and the storage tank.
  • a heat pump type water heater having a path switching mechanism for switching between a path to pass
  • the path switching mechanism is switched so that the liquid flowing out from the liquid-refrigerant heat exchanger becomes a path bypassing the storage tank, and the low temperature
  • a high-temperature liquid introduction operation for introducing a high-temperature refrigerant into the evaporator after performing a high-temperature liquid introduction operation for introducing a liquid having a temperature higher than that of the liquid into the liquid-refrigerant heat exchanger, and the liquid-refrigerant
  • a bypass circulation operation is performed in which the liquid flowing out of the heat exchanger is circulated through the bypass pipe at a lower flow rate than in the boiling operation.
  • FIG. 1 shows a system configuration diagram of a heat pump type water heater according to an embodiment of the present invention
  • FIG. 2 shows a control flow diagram of defrosting operation control which is a characteristic part of the present embodiment.
  • the heat pump type water heater of this embodiment has a refrigerant cycle including a liquid-refrigerant heat exchanger (in this embodiment, a water-refrigerant heat exchanger) shown in the left side of the drawing inside the box.
  • a tank unit 2 in which a hot water supply cycle including a mounted heat pump unit 1 and a hot water storage tank 9 as a storage tank shown on the right side of the drawing is mounted inside the box is configured.
  • the heat pump unit 1 and the tank unit 2 are connected to each other using a connection pipe 3 at the construction site of the heat pump type hot water heater.
  • the connection piping 3 is selected at the time of construction, the length, the number of bends, and the type of heat insulating material differ depending on the local situation.
  • the refrigerant cycle includes a compressor 4 that compresses refrigerant, and water-refrigerant heat as a liquid-refrigerant heat exchanger that exchanges heat between the high-temperature and high-pressure refrigerant discharged from the compressor 4 and water introduced from the hot water storage tank 9.
  • An exchanger 5 a pressure reducing valve 6 for reducing the pressure of the refrigerant flowing out of the water-refrigerant heat exchanger 5, and an evaporator 7 for exchanging heat between the low-temperature and low-pressure refrigerant decompressed by the pressure reducing valve 6 and air. It becomes the structure connected circularly by refrigerant
  • the evaporator 7 has a structure for exchanging heat with the outside air introduced by the fan 8.
  • the water cycle includes a hot water storage tank 9 for storing a predetermined amount of hot water, a circulation pump 10 to which water at the bottom of the hot water storage tank 9 is guided, and a water-refrigerant heat exchanger in which water discharged from the circulation pump 10 exchanges heat with refrigerant. 5 is connected in a ring shape by a circulation pipe. The water discharged from the water-refrigerant heat exchanger 5 is returned to the top of the hot water storage tank 9. Further, a water supply source (not shown) such as a water supply is connected to the bottom of the hot water storage tank 9 via a water supply pipe 11, and a hot water supply pipe 12 for supplying hot water to a place to be used is connected to the top.
  • a water supply source such as a water supply is connected to the bottom of the hot water storage tank 9 via a water supply pipe 11, and a hot water supply pipe 12 for supplying hot water to a place to be used is connected to the top.
  • this heat pump type hot water heater includes an outgoing pipe 3A for sending a low-temperature liquid (low-temperature water from the bottom of the hot water storage tank 9 in this embodiment) to the water-refrigerant heat exchanger 5, and a water-refrigerant heat exchanger 5
  • a return pipe 3B is provided for returning the water heated in step 1 to the hot water storage tank 9.
  • the forward piping 3A and the return piping 3B to the water-refrigerant heat exchanger are configured using the connection piping 3.
  • a bypass pipe 13 for bypassing the water derived from the water-refrigerant heat exchanger 5 to the tank 9 is connected to the forward pipe 3A and the return pipe 3B.
  • the heat pump type hot water heater is provided with a path switching mechanism for switching between a path through which water derived from the water-refrigerant heat exchanger 5 is sent to the hot water storage tank 9 and a path that bypasses the hot water storage tank 9.
  • a switching valve 14 serving as a path switching mechanism that switches the path of water is provided at a connection point between the connection pipe 3 and the bypass pipe 13.
  • This switching valve 14 is provided at a connection point between the forward piping 3A to the water-refrigerant heat exchanger and the bypass piping 13.
  • the path switching mechanism may be constituted by open / close valves provided in the connection pipe 3 and the bypass pipe 13, respectively.
  • the bypass pipe 13 is provided in the tank unit 2, and hot water circulates across the heat pump unit 1 and the tank unit 2 during a bypass circulation operation (or hot water circulation operation) described later. With such a configuration, freezing of the outgoing pipe 3A to the liquid-refrigerant heat exchanger that is most likely to be frozen can be suitably prevented.
  • the circulation pump 10 is provided in the heat pump unit 1.
  • the heat pump unit 1 is provided with an outside air temperature sensor 15 as an outside air temperature detecting unit for detecting the outside air temperature.
  • the outside air temperature sensor 15 is provided in the vicinity of the evaporator 7.
  • an evaporator inlet temperature sensor 16 and an evaporator outlet temperature sensor 17 are provided at the refrigerant inlet and outlet, respectively.
  • an incoming water temperature sensor 18 as an influent temperature sensor for detecting the temperature of water flowing into the water-refrigerant heat exchanger 5, and the water-refrigerant heat exchanger 5.
  • a tapping temperature sensor 19 as an effluent temperature detecting section for detecting the temperature of water flowing out of the effluent.
  • the switching valve 14 is set on the hot water storage tank 9 side, and the hot water storage operation in which the hot water heated by the water-refrigerant heat exchanger 5 is stored in the hot water storage tank 9 is performed. Further, in the boiling operation, it is determined whether the defrosting operation is necessary, and serves as an inflow refrigerant temperature detection unit that detects the outside air temperature obtained from the outside air temperature sensor 15 and the temperature of the refrigerant flowing into the evaporator.
  • the defrosting operation is executed when a predetermined defrosting operation start condition is satisfied.
  • the predetermined defrosting operation start condition is when the evaporator inlet temperature obtained from the evaporator inlet temperature sensor 16 and the evaporator outlet temperature obtained from the evaporator outlet temperature sensor 17 have reached a predetermined temperature.
  • the defrosting preparation operation is necessary when the outside air temperature reaches a predetermined temperature that requires the defrost preparation operation.
  • the predetermined temperature at which the defrost preparation operation is required is a temperature (for example, ⁇ 15 ° C. or lower) at which the water in the pipe may be frozen.
  • a high-temperature water introduction operation (or a hot water introduction operation) is performed in which water (that is, hot water) that is hotter than low-temperature water (that is, low-temperature water) is introduced into the water-refrigerant heat exchanger 5.
  • the switching valve 14 is set on the bypass pipe 13 side while the heat pump operation is continued, and the water in the connection pipe 3 and the bypass pipe 13 is heated by the water-refrigerant heat exchanger 5 to be hot water.
  • the defrost preparation operation is performed until a predetermined defrost preparation operation end condition is satisfied.
  • the predetermined defrosting preparatory operation end condition is that the incoming water temperature of the incoming water temperature sensor 18 detected during the defrosting preparatory operation is equal to or higher than a predetermined temperature (for example, 70 ° C.) or predetermined from the start of the defrosting preparatory operation. This is a case where any one of elapses of time (for example, 3 minutes) is satisfied. However, it is not limited to this, either one may be sufficient and other things may be sufficient. For example, it may be based on a change in the temperature of the circulating water, such as when the outlet temperature sensor 19 detected during the defrost preparation operation detects that the temperature of the water has exceeded a predetermined temperature.
  • the defrosting preparation operation time is provided as the defrosting preparation operation end condition in the actual product in which the incoming water temperature reaches a predetermined temperature depending on the length of the connecting pipe 3 and the state of the pipe insulation. This is because there is a possibility that it will not rise, and in this case, an operation different from the defrosting operation that is originally required will be performed for a long time, which is not preferable.
  • ⁇ Defrost operation is started after completion of defrost preparation operation.
  • a high-temperature refrigerant introduction operation for introducing a high-temperature refrigerant into the evaporator 7 is performed to melt the frost attached to the evaporator 7.
  • hot gas defrosting that introduces refrigerant discharged from the compressor into the evaporator at a high temperature and reverse cycle defrosting that reverses the heat pump cycle.
  • the pressure reducing valve 6 an electromagnetic expansion valve whose opening degree can be adjusted is used, the opening degree of the electromagnetic expansion valve is made larger than that during the boiling operation, and refrigerant having a temperature higher than that during the boiling operation is introduced into the evaporator 7.
  • a bypass circulation operation for circulating the water led out from the water-refrigerant heat exchanger 5 through the bypass pipe 13 is performed.
  • control is performed so that water flows at a predetermined flow rate that is smaller than that in the boiling operation.
  • the flow rate during the boiling operation is about 1.0 L / min
  • the predetermined flow rate in the bypass circulation operation is about 0.1 to 0.2 L / min.
  • the rotational speed of the circulation pump 10 is set to a predetermined low speed.
  • the predetermined low-speed rotation speed is lower than the rotation speed during normal boiling operation and is the rotation speed at which the hot and cold water in the pipe circulates.
  • the circulating pump 10 may be driven intermittently (or intermittently) in addition to lowering the rotational speed of the circulating pump 10 than during the boiling operation.
  • This defrosting operation is performed until a predetermined defrosting operation end condition is satisfied.
  • the evaporator outlet temperature of the evaporator outlet temperature sensor 17 may not rise to a predetermined temperature even though frost has already been removed. In this case, although the frost is removed, the defrosting operation is continued, and a useless operation is performed.
  • the predetermined defrosting operation end condition is set to satisfy either a predetermined defrosting operation end temperature condition or a predetermined defrosting operation end time condition.
  • a predetermined defrosting operation end temperature condition or a predetermined defrosting operation end time condition.
  • the outside air temperature is set to be the same as when the temperature difference between the detected value of the outside air temperature sensor 15 and the detected value of the evaporator inlet temperature sensor 16 is within a predetermined range.
  • the temperature change condition may be taken into consideration.
  • the predetermined defrosting operation end temperature condition will be described at least when the evaporator outlet temperature of the evaporator outlet temperature sensor 17 is equal to or higher than a predetermined temperature (for example, 7 ° C.). Moreover, in order to perform defrosting reliably, the evaporator inlet temperature of the evaporator inlet temperature sensor 16 is also utilized. Specifically, when the evaporator inlet temperature is a predetermined temperature and the evaporator outlet temperature is equal to or higher than a predetermined temperature (for example, 7 ° C.), the defrosting operation end temperature condition is set. However, it is not limited to this, either one may be sufficient and other things may be sufficient.
  • the predetermined defrosting operation end time condition is when a predetermined time (for example, 10 minutes) has elapsed since the start of the defrosting operation.
  • freezing in the pipe as described above may occur even during defrosting operation (for example, during normal boiling operation). In this case, the boiling operation becomes difficult. There is a risk of problems such as becoming impossible. In that respect, freezing can be prevented by performing the warm water introduction operation as described above.
  • the heat pump water heater has a predetermined temperature of water entering the water-refrigerant heat exchanger 5 detected by the water temperature sensor 18 as shown in FIG.
  • a predetermined temperature for example, 3 ° C.
  • the freeze prevention operation for forcibly performing the above-described bypass circulation operation is executed.
  • the path switching mechanism is switched so that the water flowing out from the water-refrigerant heat exchanger 5 becomes a path that bypasses the hot water storage tank 9, so that water having a temperature higher than that of the low temperature water is supplied.
  • the water introduced into the refrigerant heat exchanger 5 and flowing out of the water-refrigerant heat exchanger 5 is circulated through the bypass pipe 13 to prevent freezing of the outgoing pipe 3A toward the water-refrigerant heat exchanger 5.
  • this freeze prevention operation is performed, the said defrost operation is continued.
  • This is a hot water circulation operation similar to the operation performed in the freeze prevention operation and the defrost preparation operation, and since the hot water is introduced into the water-refrigerant heat exchanger 5 and the bypass pipe 13, the operation proceeds to the defrost operation as it is.
  • the hot water introduced into the water-refrigerant heat exchanger 5 and the bypass pipe 13 is not wasted, and the evaporator 7 is frosted at this point. Because this frost can be removed, energy efficiency is improved.
  • heat pump type water heater according to the present invention is not limited to the configuration of the above embodiment, and various modifications can be made without departing from the spirit of the invention.
  • hot water boiled using the heat pump circuit is stored in the hot water storage tank 9, and hot water is supplied from the hot water storage tank 9 at the hot water supply terminal when hot water is supplied.
  • hot water supplied at a hot water supply terminal is generated by indirectly heating low temperature water by heat exchange with a high temperature liquid stored in a storage tank.
  • the storage tank may store the liquid heated by the heat pump circuit.
  • the liquid only needs to function as a heat medium, and may be water or brine.
  • hot water stored in a storage tank is heated by indirectly exchanging low-temperature water with a water-liquid heat exchanger, and hot water supplied at a hot water supply terminal is generated and supplied with hot water at a hot water supply terminal. is there.
  • FIG. 3 This is illustrated in FIG. 3 as another embodiment.
  • the configuration of FIG. 3 is substantially different from the configuration of FIG. 1 in that a water-liquid heat exchanger 20 is provided between a tank for storing the liquid of the heat medium and a hot water supply terminal (not shown).
  • Other configurations are substantially the same as shown in the figure, but the reference numerals and names are partially changed. That is, the liquid-refrigerant heat exchanger 5 ', the storage tank 9', and the circulating liquid inlet pipe 11 'are adapted to indirectly heat the low-temperature water with heated water stored in the tank or a liquid other than water.
  • the circulating fluid outlet pipe 12 ', the inlet temperature sensor 18', and the outlet temperature sensor 19 ' are changed.
  • the defrosting operation control of the heat pump type water heater according to the embodiment of FIG. 3 is substantially the same as the flowchart of the defrosting operation control of the embodiment of FIG. While the above description has been made with reference to exemplary embodiments, it will be apparent to those skilled in the art that the invention is not limited thereto and that various changes and modifications can be made within the spirit of the invention and the scope of the appended claims.
PCT/JP2009/064437 2009-03-27 2009-08-18 ヒートポンプ式給湯機 WO2010109689A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011505796A JP5378504B2 (ja) 2009-03-27 2009-08-18 ヒートポンプ式給湯機
CN200980157943.2A CN102348938B (zh) 2009-03-27 2009-08-18 热泵式热水器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009078006 2009-03-27
JP2009-078006 2009-03-27

Publications (1)

Publication Number Publication Date
WO2010109689A1 true WO2010109689A1 (ja) 2010-09-30

Family

ID=42780396

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/064437 WO2010109689A1 (ja) 2009-03-27 2009-08-18 ヒートポンプ式給湯機

Country Status (4)

Country Link
JP (1) JP5378504B2 (zh)
KR (1) KR20110125234A (zh)
CN (1) CN102348938B (zh)
WO (1) WO2010109689A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012197956A (ja) * 2011-03-18 2012-10-18 Mitsubishi Electric Corp ヒートポンプ式給湯機
CN103415749A (zh) * 2011-03-09 2013-11-27 东芝开利株式会社 二元制冷循环装置
JP2014228261A (ja) * 2013-05-27 2014-12-08 リンナイ株式会社 暖房システム
JP2019158285A (ja) * 2018-03-15 2019-09-19 株式会社デンソー ヒートポンプ式給湯機
CN114739063A (zh) * 2022-04-26 2022-07-12 青岛海尔空调电子有限公司 热泵机组及其控制方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014196849A (ja) * 2013-03-29 2014-10-16 パナソニック株式会社 ヒートポンプ給湯装置
CN104566965B (zh) * 2014-12-31 2017-09-01 孙厚永 一种空气能分体式壁挂炉
CN104792076A (zh) * 2015-04-28 2015-07-22 广东美的暖通设备有限公司 一种三管制多联机空调系统回油或化霜控制方法及其系统
CN104792075A (zh) * 2015-04-28 2015-07-22 广东美的暖通设备有限公司 一种三管制多联机空调系统回油或化霜控制方法及其系统
CN105135689B (zh) * 2015-09-25 2018-04-06 广东美的暖通设备有限公司 循环式热水机防冻预警控制方法以及装置
ITUB20159146A1 (it) * 2015-12-24 2017-06-24 Cordivari S R L Sistema di scambio termico e di stratificazione termica del fluido contenuto in un serbatoio e bollitore comprendente detto sistema.
DE102017010148A1 (de) * 2017-11-02 2019-05-02 Stiebel Eltron Gmbh & Co. Kg Heizungsanlage und Steuerverfahren für eine Heizungsanlage
CN110595122B (zh) * 2018-06-12 2022-03-08 浙江盾安机电科技有限公司 热泵的除霜控制方法、装置及系统
CN114963528B (zh) * 2021-06-29 2023-08-18 青岛海尔新能源电器有限公司 冷媒检测方法、装置、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147610A (ja) * 2003-11-19 2005-06-09 Matsushita Electric Ind Co Ltd ヒートポンプ給湯装置
JP2008039360A (ja) * 2006-08-10 2008-02-21 Matsushita Electric Ind Co Ltd ヒートポンプ式給湯機
JP2008121923A (ja) * 2006-11-09 2008-05-29 Denso Corp ヒートポンプ式給湯機
JP2009041860A (ja) * 2007-08-09 2009-02-26 Toshiba Carrier Corp ヒートポンプ給湯装置の制御方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3742356B2 (ja) * 2002-03-20 2006-02-01 株式会社日立製作所 ヒートポンプ給湯機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147610A (ja) * 2003-11-19 2005-06-09 Matsushita Electric Ind Co Ltd ヒートポンプ給湯装置
JP2008039360A (ja) * 2006-08-10 2008-02-21 Matsushita Electric Ind Co Ltd ヒートポンプ式給湯機
JP2008121923A (ja) * 2006-11-09 2008-05-29 Denso Corp ヒートポンプ式給湯機
JP2009041860A (ja) * 2007-08-09 2009-02-26 Toshiba Carrier Corp ヒートポンプ給湯装置の制御方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103415749A (zh) * 2011-03-09 2013-11-27 东芝开利株式会社 二元制冷循环装置
JP2012197956A (ja) * 2011-03-18 2012-10-18 Mitsubishi Electric Corp ヒートポンプ式給湯機
JP2014228261A (ja) * 2013-05-27 2014-12-08 リンナイ株式会社 暖房システム
JP2019158285A (ja) * 2018-03-15 2019-09-19 株式会社デンソー ヒートポンプ式給湯機
CN114739063A (zh) * 2022-04-26 2022-07-12 青岛海尔空调电子有限公司 热泵机组及其控制方法
CN114739063B (zh) * 2022-04-26 2024-02-23 青岛海尔空调电子有限公司 热泵机组及其控制方法

Also Published As

Publication number Publication date
JPWO2010109689A1 (ja) 2012-09-27
CN102348938B (zh) 2015-08-12
KR20110125234A (ko) 2011-11-18
JP5378504B2 (ja) 2013-12-25
CN102348938A (zh) 2012-02-08

Similar Documents

Publication Publication Date Title
JP5378504B2 (ja) ヒートポンプ式給湯機
WO2014080612A1 (ja) 冷凍サイクル装置及びそれを備えた温水生成装置
JP2003214700A (ja) ヒートポンプ式給湯装置
WO2009148011A1 (ja) 温水システム
JP2008070013A (ja) ヒートポンプ装置及びヒートポンプ給湯機
JP4507109B2 (ja) ヒートポンプ式給湯機
JP2010091131A (ja) 熱交換器および温水システム
WO2010143373A1 (ja) ヒートポンプシステム
JP2008096044A (ja) 貯湯式給湯装置
JP2003139405A (ja) 貯湯式給湯器
JP2009063246A (ja) ヒートポンプ給湯機
JP2002048399A (ja) ヒートポンプ式給湯装置
JP5141486B2 (ja) 熱交換器および温水システム
JP5333507B2 (ja) ヒートポンプ給湯装置
JP6465332B2 (ja) ヒートポンプ給湯システム
JP2006003077A (ja) ヒートポンプ式給湯装置
JP5682552B2 (ja) ヒートポンプ式給湯機
JP2014031930A (ja) 冷凍サイクル装置
JP4479836B2 (ja) 温水システム
JP2009074736A (ja) ヒートポンプ式給湯装置
JP2012083066A (ja) 空気調和機
JP3919610B2 (ja) ヒートポンプ式給湯機における凍結防止装置
JP2010054145A (ja) ヒートポンプ給湯機
JP2020165552A (ja) ヒートポンプ式給湯装置
JP2009085476A (ja) ヒートポンプ給湯装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980157943.2

Country of ref document: CN

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

Ref document number: 09842300

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2011505796

Country of ref document: JP

ENP Entry into the national phase

Ref document number: 20117020872

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09842300

Country of ref document: EP

Kind code of ref document: A1