WO2003004947A1 - Heat pump - Google Patents
Heat pump Download PDFInfo
- Publication number
- WO2003004947A1 WO2003004947A1 PCT/JP2002/006684 JP0206684W WO03004947A1 WO 2003004947 A1 WO2003004947 A1 WO 2003004947A1 JP 0206684 W JP0206684 W JP 0206684W WO 03004947 A1 WO03004947 A1 WO 03004947A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant
- evaporator
- gas cooler
- radiator
- temperature
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
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- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
-
- 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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0443—Combination of units extending one beside or one above the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
-
- 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
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
-
- 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
- F25B47/022—Defrosting cycles hot gas defrosting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
- Y02A40/963—Off-grid food refrigeration
Definitions
- the present invention relates to a heat pump device, and more particularly, to a heat pump type hot water supply device configured to be able to increase the defrosting efficiency of an evaporator and supply hot water heated by a gas cooler.
- the present invention relates to a heat pump device capable of suppressing fluctuations in the amount of refrigerant flowing.
- a heat-pump type hot water supply apparatus which includes a refrigeration cycle having a compressor, a gas cooler, a pressure reducing device, and an evaporator, and is configured to be able to supply water heated by the gas cooler.
- the high was summer and the feed water temperature, for example 5 0 ° C approximately to the gas cooler, C 0 2 refrigerant, the 5 0 ° C about the hot water and to heat exchange with the gas cooler, without being so cooled, It reaches the gas cooler outlet in the hot gas state, expands and circulates to the evaporator and further to the compressor.
- the equipment constituting the refrigeration cycle is often installed outdoors as a heat pump unit.
- the evaporator needs to be defrosted in many cases.
- the refrigerant discharged from the compressor is supplied directly to the evaporator, bypassing the gas cooler and the pressure reducing device, and the hot gas to be defrosted by heating the evaporator by the heat of the refrigerant. Defrosting is common.
- the gap between the bottom plate (drain pan) of the heat pump unit and the lower part of the evaporator is extremely narrow. Therefore, it is difficult to remove this ice efficiently in areas where winter days are continuous.
- an object of the present invention is to solve the above-mentioned problems of the conventional technology, and to suppress the fluctuation of the optimum amount of circulating refrigerant when the temperature of the feedwater rises with a simple configuration,
- An object of the present invention is to provide a heat pump device that can efficiently perform defrosting. Disclosure of the invention
- the present invention includes a refrigeration cycle including a compressor, a gas cooler, a decompression device, and an evaporator.
- the refrigeration cycle is filled with a refrigerant whose high pressure side operates in a supercritical region.
- Used gas cooler A radiator is provided between the outlet and the pressure reducing device.
- the present invention is characterized in that the refrigerant temperature at the outlet of the radiator is maintained at a substantially constant temperature regardless of the temperature of water supplied to the gas cooler.
- the present invention is characterized in that the radiator is arranged below the evaporator.
- the present invention is characterized in that the radiator is constituted by a part of a refrigerant pipe connected from the gas cooler to the pressure reducing device.
- the present invention is characterized in that the evaporator is a fin-tube heat exchanger, and a part of the refrigerant pipe is arranged so as to penetrate a lower part of the fin of the evaporator.
- the present invention is characterized in that the refrigerant is a co 2 refrigerant.
- the refrigerant temperature at the radiator outlet is maintained at a substantially constant temperature irrespective of the water supply temperature to the gas cooler, so that the refrigerant density at the radiator outlet is substantially constant regardless of the water supply temperature.
- the refrigerant density is substantially constant and the capacity of the refrigeration cycle is constant, the amount of circulating refrigerant is constant, and fluctuations in the optimal refrigerant amount are suppressed.
- FIG. 1 is a circuit diagram showing one embodiment of a heat pump device according to the present invention
- FIG. 2 is a perspective view of an evaporator
- FIG. 3 is a Th-h diagram
- FIG. 4 is a perspective view of an evaporator showing another embodiment.
- reference numeral 1 denotes a compressor.
- This compressor 1 is connected to a gas cooler 3, a pressure reducing device (expansion valve) 5, and a fin-tube air-heat source type through a refrigerant pipe shown by a solid line.
- An evaporator 7 composed of a heat exchanger and an accumulator 8 are connected in order to form a refrigeration cycle.
- This refrigeration cycle is filled with CO 2 refrigerant.
- This CO 2 refrigerant is ozone Since its destruction coefficient is 0 and its global warming potential is 1, it has low environmental impact, is safe and inexpensive without toxicity and flammability.
- the gas cooler 3 a refrigerant coil 9 indicated by a solid line through which C 0 2 refrigerant consists of water coil 1 1 Metropolitan indicated by a broken line in which water flows, the water coil 1 1 is not shown via a water pipe Connected to hot water storage tank.
- a circulation pump (not shown) is connected to the water pipe, and the circulation pump is driven to circulate the water in the hot water storage tank through the gas cooler 3, where it is heated and stored in the hot water storage tank.
- This heat pump water heater is installed outdoors as a heat pump unit, and requires a defrosting operation for removing frost attached to the evaporator 7.
- the defrosting operation in this case is performed by directly supplying the refrigerant discharged from the compressor 1 to the evaporator 7 through the bypass pipe 13 and heating it.
- the bypass pipe 13 bypasses the gas cooler 3 and the expansion valve 5.
- the normally closed defrosting solenoid valve 15 provided in the bypass pipe 13 is opened.
- a part (radiator) 21 of a refrigerant pipe connected from the gas cooler 3 to the expansion valve 5 is arranged below the evaporator 7.
- This evaporator 7 is a fin-type air heat source type heat exchanger in which a meandering tube 25 is passed through the holes of many fins 23, 23, 23,.
- the lowermost U-shaped tube 25a corresponds to the part 21 of the refrigerant pipe, and the substantially U-shaped tube 25a and the tube 25 downstream therefrom.
- the expansion valve 5 is connected between them.
- FIG. 2 is a perspective view of the evaporator 7.
- the tubes 25 are arranged in two rows from the windward to the leeward, and the above substantially U-shaped tubes (part of the refrigerant pipe) 25a It is located through the lower part.
- the high-pressure refrigerant cooled by the gas cooler 3 flows into the tube 25a.
- the refrigerant flows in through the inlet tube A, passes through the meandering tube 25a, and flows out of the outlet tube B. Head to expansion valve 5.
- the gas flows into the evaporator 7 through the windward inlet pipe C located just above the tube 25a, and meanders once to reach the tube 25b on the windward side.
- the tube 25 on the windward side several times Flow from the uppermost tube 25 c on the leeward side to the tube 25 d on the leeward side, and the leeward side tube 25 flows from top to bottom, and the lowermost outlet pipe D From the compressor to the compressor 1.
- FIG. 3 shows a T-h diagram
- the outlet of the gas cooler 3 substantially corresponds to the point E.
- the refrigerant does not reach the liquid state and is almost in the gas state.
- the refrigerant that has passed through the outlet (point E) of the gas cooler 3 reaches the radiator 21, where it is cooled by heat exchange with air, almost reaches a liquid state, and in the liquid state, exits the radiator 21 (in the liquid state).
- it is expanded by the expansion valve 5 and reaches the inlet (point C) of the evaporator 7, completely gasified by the evaporator 7, and Circulates to the suction (point D).
- the radiator 21 is provided between the gas cooler outlet and the pressure reducing device 5, the radiator 21 outlet ( The refrigerant temperature at point B) is kept substantially constant.
- the density of the refrigerant circulating in the refrigeration cycle is almost constant regardless of whether the feedwater temperature is low or high, and the volume of the refrigeration cycle (the volume of the radiator 21, the evaporator 7, etc.) is constant. Therefore, there is no difference in the optimal refrigerant amount between the high and low water supply temperatures, and the fluctuation of the optimal refrigerant amount is suppressed.
- the radiator 21 can be manufactured as a part of the evaporator 7 and can also serve as a blower for the evaporator 7, so that the initial cost can be reduced, and energy saving can be achieved because a separate cooling source is not provided. .
- the high-pressure refrigerant cooled by the gas cooler 3 always flows into the lower part of the evaporator 7 during the hot water supply operation.
- the temperature of the refrigerant at the outlet of the gas cooler 3 is higher than the temperature of the water supplied to the gas cooler 3, the temperature of the water supplied here will be given in consideration of the water pipe freezing prevention equipment, etc. Since the temperature is maintained at 0 ° C or higher, the refrigerant temperature at the outlet of the gas cooler 3 is also maintained at 0 ° C or higher.
- the temperature at the lower part of the evaporator 7 is maintained at 0 ° C. or higher, and the freezing of the drain at the lower part of the evaporator 7 is prevented.
- the hot water supply operation is switched to the defrosting operation according to the difference between the evaporation temperature in the evaporator 7 during the hot water supply operation and the outside air temperature, but the hot gas during the defrosting operation is transferred to the tube 25 b of the evaporator 7.
- Inflow from this meandering through the leeward tube 25 several times, flows from the uppermost tube 25 c on the leeward side to the leeward tube 25 d, and the leeward tube 2 5 flows from top to bottom, and flows out from the lowest outlet pipe D toward the compressor 1.
- the evaporator 7 is heated, the frost attached to the evaporator 7 is melted, and the drain is drained downward.
- the high-pressure refrigerant that has passed through the gas cooler 3 also flows into the substantially U-shaped tube 25a, so that the temperature at the lower portion of the evaporator 7 is maintained at 0 ° C or more, and The drain at the bottom of the generator 7 does not freeze, and an effect of preventing icing is obtained.
- FIG. 4 shows another embodiment.
- the evaporator 7 and the radiator 21 are formed as separate fins, and the radiator 21 is arranged below the evaporator 7. According to this, substantially the same effect as in the above embodiment can be obtained. If the radiator 21 and the evaporator 7 are separated from each other as described above, the position where the radiator 21 is provided is not limited to the lower part of the evaporator 7. Either the evaporator 7 can be installed side by side or at the position according to the installation space, as appropriate. Needless to say, if it is not installed below the evaporator 7, the anti-icing effect cannot be obtained.
- the heat pump device is applied to a case where a simple configuration is used to suppress fluctuations in the optimal refrigerant amount when the temperature of feedwater is increased, and is applied to a case where defrosting of an evaporator is efficiently performed.
- the present invention is applied to a hot water supply device, and is not limited to this, and is also applied to, for example, a heating device.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02743778A EP1403598B1 (en) | 2001-07-02 | 2002-07-02 | Heat pump |
| JP2003510878A JPWO2003004947A1 (ja) | 2001-07-02 | 2002-07-02 | ヒートポンプ装置 |
| US10/344,699 US7104079B2 (en) | 2001-07-02 | 2002-07-02 | Heat pump |
| KR10-2003-7002982A KR20030029882A (ko) | 2001-07-02 | 2002-07-02 | 히트 펌프 장치 |
| DE60230510T DE60230510D1 (de) | 2001-07-02 | 2002-07-02 | Wärmepumpe |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001200413 | 2001-07-02 | ||
| JP2001-200413 | 2001-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003004947A1 true WO2003004947A1 (en) | 2003-01-16 |
Family
ID=19037539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2002/006684 Ceased WO2003004947A1 (en) | 2001-07-02 | 2002-07-02 | Heat pump |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7104079B2 (ja) |
| EP (1) | EP1403598B1 (ja) |
| JP (1) | JPWO2003004947A1 (ja) |
| KR (1) | KR20030029882A (ja) |
| CN (1) | CN1250926C (ja) |
| DE (1) | DE60230510D1 (ja) |
| WO (1) | WO2003004947A1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004111557A1 (en) * | 2003-06-12 | 2004-12-23 | Rane Milind V | Multiutility vapor compression system |
| WO2006025169A1 (ja) * | 2004-07-30 | 2006-03-09 | Daikin Industries, Ltd. | 冷凍装置 |
| JP2008533426A (ja) * | 2005-03-18 | 2008-08-21 | キャリア・コマーシャル・リフリージレーション・インコーポレーテッド | 遷臨界二酸化炭素冷蔵システムの凝縮水による熱伝達 |
| JP2009052880A (ja) * | 2004-03-29 | 2009-03-12 | Mitsubishi Electric Corp | ヒートポンプ給湯機 |
| CN106288482A (zh) * | 2015-05-19 | 2017-01-04 | Tcl空调器(中山)有限公司 | 空调器 |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7028494B2 (en) * | 2003-08-22 | 2006-04-18 | Carrier Corporation | Defrosting methodology for heat pump water heating system |
| TWI332073B (en) * | 2004-02-12 | 2010-10-21 | Sanyo Electric Co | Heating/cooling system |
| JP4593950B2 (ja) | 2004-03-23 | 2010-12-08 | キヤノン株式会社 | 画像形成装置 |
| JP3904013B2 (ja) * | 2004-10-25 | 2007-04-11 | 松下電器産業株式会社 | ヒートポンプ式給湯装置 |
| CN101124438B (zh) * | 2005-02-18 | 2010-08-04 | 卡里尔公司 | 具有热回收的co2制冷设备 |
| JP4007391B2 (ja) | 2006-03-31 | 2007-11-14 | ダイキン工業株式会社 | 食い込み式管接続構造、管継手、弁、閉鎖弁、冷凍サイクル装置、及び給湯装置 |
| FR2901015A1 (fr) * | 2006-05-12 | 2007-11-16 | Goff Michel Paul Marcel Le | Batterie a air surchauffe dans le cadre d'un groupe frigorifique, pompe a chaleur. |
| WO2008124475A1 (en) | 2007-04-03 | 2008-10-16 | Global Heating Solutions, Inc. | Spa having heat pump system |
| FR2933484A1 (fr) * | 2008-07-03 | 2010-01-08 | 2F2C | Procede de refrigeration d'au moins un meuble et/ou une chambre frigorifique et de chauffage d'au moins un local, installation et echangeur de chaleur pour sa mise en oeuvre |
| EP2321608A4 (en) * | 2008-09-08 | 2013-03-06 | Carrier Corp | CONFIGURATION OF MICROCHANNEL HEAT EXCHANGER MODULE TO REDUCE WATER TRAPPING |
| US20100229575A1 (en) * | 2009-03-10 | 2010-09-16 | Shaw Engineering Associates, Llc | Defrost system and method for heat pumps |
| US8385729B2 (en) | 2009-09-08 | 2013-02-26 | Rheem Manufacturing Company | Heat pump water heater and associated control system |
| CN102003842B (zh) * | 2010-11-04 | 2013-04-10 | 三花控股集团有限公司 | 蒸发器和具有它的制冷系统 |
| US9234673B2 (en) | 2011-10-18 | 2016-01-12 | Trane International Inc. | Heat exchanger with subcooling circuit |
| US9188369B2 (en) | 2012-04-02 | 2015-11-17 | Whirlpool Corporation | Fin-coil design for a dual suction air conditioning unit |
| GB201220186D0 (en) * | 2012-11-09 | 2012-12-26 | Styles Scott | Heating system |
| US9228762B2 (en) | 2013-02-28 | 2016-01-05 | Whirlpool Corporation | Refrigeration system having dual suction port compressor |
| JP5968534B2 (ja) * | 2013-05-31 | 2016-08-10 | 三菱電機株式会社 | 空気調和装置 |
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- 2002-07-02 EP EP02743778A patent/EP1403598B1/en not_active Expired - Lifetime
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| JP2009052880A (ja) * | 2004-03-29 | 2009-03-12 | Mitsubishi Electric Corp | ヒートポンプ給湯機 |
| WO2006025169A1 (ja) * | 2004-07-30 | 2006-03-09 | Daikin Industries, Ltd. | 冷凍装置 |
| JP2008533426A (ja) * | 2005-03-18 | 2008-08-21 | キャリア・コマーシャル・リフリージレーション・インコーポレーテッド | 遷臨界二酸化炭素冷蔵システムの凝縮水による熱伝達 |
| CN106288482A (zh) * | 2015-05-19 | 2017-01-04 | Tcl空调器(中山)有限公司 | 空调器 |
| CN106288482B (zh) * | 2015-05-19 | 2019-03-12 | Tcl空调器(中山)有限公司 | 空调器 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030029882A (ko) | 2003-04-16 |
| EP1403598A4 (en) | 2005-11-30 |
| US20040020230A1 (en) | 2004-02-05 |
| CN1464963A (zh) | 2003-12-31 |
| DE60230510D1 (de) | 2009-02-05 |
| EP1403598A1 (en) | 2004-03-31 |
| CN1250926C (zh) | 2006-04-12 |
| JPWO2003004947A1 (ja) | 2004-10-28 |
| EP1403598B1 (en) | 2008-12-24 |
| US7104079B2 (en) | 2006-09-12 |
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