EP1967801A2 - Heißwassersystem - Google Patents

Heißwassersystem Download PDF

Info

Publication number
EP1967801A2
EP1967801A2 EP20070254439 EP07254439A EP1967801A2 EP 1967801 A2 EP1967801 A2 EP 1967801A2 EP 20070254439 EP20070254439 EP 20070254439 EP 07254439 A EP07254439 A EP 07254439A EP 1967801 A2 EP1967801 A2 EP 1967801A2
Authority
EP
European Patent Office
Prior art keywords
refrigerant
bypath
heat exchanger
compressor
expansion valve
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.)
Granted
Application number
EP20070254439
Other languages
English (en)
French (fr)
Other versions
EP1967801A3 (de
EP1967801B1 (de
Inventor
Kazuki c/o Mitsubishi Electric Corporation Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1967801A2 publication Critical patent/EP1967801A2/de
Publication of EP1967801A3 publication Critical patent/EP1967801A3/de
Application granted granted Critical
Publication of EP1967801B1 publication Critical patent/EP1967801B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F25B47/025—Defrosting cycles hot gas defrosting by reversing the 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
    • 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
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves

Definitions

  • Fig. 1 shows the flow of the refrigerant in the refrigerating cycle when the hot water system is operated as a water heater by solid lines.
  • the refrigerant that has become high-pressure high-temperature gas in the compressor 1 is discharged from the outlet of the compressor 1 to the four-way valve 2.
  • the four-way valve 2 is a valve for switching the circuit of the refrigerant.
  • the hot water system is operated as a water heater, the four-way valve 2 is fixed so as to feed the refrigerant discharged from the compressor 1 to the water heat exchanger 3.
  • the refrigerant fed to the water heat exchanger 3 exchanges heat with the water in the water heat exchanger 3.
  • the low-pressure low-temperature gas refrigerant fed to the inlet of the compressor 1 is compressed in the compressor 1 into a high-pressure high-temperature gas refrigerant and is discharge from the outlet.
  • the foregoing cycle is repeated to melt the frost adhered to the air heat exchanger 5 into liquid and remove it from the air heat exchanger 5.
  • the control of the state of the refrigerant to be sucked into the compressor 1 leads to prevention of abnormal overheating of the compressor 1 by preventing the inflow of an overheated refrigerant and to prevention of damages to the compressor 1 due to the backflow of liquid, thus improving the reliability of the compressor 1.
  • the electronic expansion valve 4 can provide the same advantages as those of the control according to the temperature of the refrigerant discharged from the compressor 1 even if controlled according to either the degree of superheat of the refrigerant sucked in the compressor 1 (degree of inlet superheat) or the degree of superheat of the refrigerant discharged from the compressor 1 (degree of discharge superheat).
  • the additional electronic expansion valve 14 is located in downstream of the receiver 12, and controls the refrigerant evaporated by the air heat exchanger 5 according to the degree of superheat.
  • the degree of opening of the additional electronic expansion valve 14 is decreased to thereby decrease the amount of the refrigerant evaporated by the air heat exchanger 5 to increase the degree of dryness of the refrigerant due to evaporation, thereby increasing the degree of superheat.
  • the degree of superheat to be controlled may be either the degree of inlet superheat indicative of the state of the refrigerant sucked in the compressor 1 or the degree of discharge superheat indicative of the state of the refrigerant discharged from the compressor 1 because they offer the same effects.
  • an output temperature that is the temperature of the gas refrigerant discharged from the compressor 1 may be controlled because they offer the same effects.
  • the degree of subcooling of the air heat exchanger 5 is controlled by the additional electronic expansion valve 14 and one of the degree of inlet superheat, the output degree of superheat, and the output temperature of the compressor 1 is controlled by the electronic expansion valve 4.
  • the electronic expansion valve 4 In the refrigerating cycle with the receiver 12, a circuit in which one end of the bypath 8 is connected to the portion of the pipe 7 connecting the electronic expansion valve 4 and the receiver 9, and the other end of the bypath 8 is connected to the portion of the pipeline 7 adjacent to the inlet of the compressor 1.
  • the bypath 8 has therein the solenoid on-off valve 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP07254439.8A 2007-03-09 2007-11-13 Heißwassersystem Not-in-force EP1967801B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007060238A JP4974714B2 (ja) 2007-03-09 2007-03-09 給湯器

Publications (3)

Publication Number Publication Date
EP1967801A2 true EP1967801A2 (de) 2008-09-10
EP1967801A3 EP1967801A3 (de) 2014-09-24
EP1967801B1 EP1967801B1 (de) 2017-07-26

Family

ID=39591405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07254439.8A Not-in-force EP1967801B1 (de) 2007-03-09 2007-11-13 Heißwassersystem

Country Status (2)

Country Link
EP (1) EP1967801B1 (de)
JP (1) JP4974714B2 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2733444A4 (de) * 2011-07-14 2015-06-24 Mitsubishi Electric Corp Klimaanlage
US9557085B2 (en) 2009-07-22 2017-01-31 Mitsubishi Electric Corporation Heat pump apparatus
US9709308B2 (en) 2010-01-26 2017-07-18 Mitsubishi Electric Corporation Heat pump device and refrigerant bypass method
EP3249321A4 (de) * 2015-02-02 2017-12-27 Mitsubishi Heavy Industries Thermal Systems, Ltd. Steuerungsvorrichtung, steuerungsverfahren und programm
CN108007016A (zh) * 2017-10-30 2018-05-08 珠海格力电器股份有限公司 热泵系统以及热泵系统的控制方法
EP3617616A4 (de) * 2017-04-27 2020-03-04 Mitsubishi Electric Corporation Kältekreislaufvorrichtung
CN110895061A (zh) * 2018-09-12 2020-03-20 艾默生环境优化技术(苏州)有限公司 冷媒循环系统及冷媒循环系统除霜的方法
CN117199631A (zh) * 2023-09-21 2023-12-08 无锡启乐智能装备有限公司 一种宽调节范围的直冷直热式电池包控温测试系统
EP4257893A4 (de) * 2020-12-01 2024-05-15 Daikin Industries, Ltd. Kältekreislaufsystem
CN119412835A (zh) * 2024-12-09 2025-02-11 华中科技大学 一种空气源热泵系统及其除霜控制方法
US12385675B2 (en) 2020-05-08 2025-08-12 Daikin Industries, Ltd. Refrigeration cycle apparatus

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4937244B2 (ja) * 2008-12-19 2012-05-23 三菱電機株式会社 ヒートポンプ装置並びにそれを搭載したヒートポンプ給湯機及び空気調和機
JP5427428B2 (ja) 2009-02-06 2014-02-26 三菱重工業株式会社 ヒートポンプ式給湯・空調装置
KR100984305B1 (ko) * 2009-09-10 2010-09-30 에이치에스지(주) 냉온수 히트펌프
KR101169516B1 (ko) 2010-02-04 2012-07-27 엘지전자 주식회사 히트펌프 급탕장치
JP5904628B2 (ja) * 2010-05-26 2016-04-13 サイエンス株式会社 デフロスト運転用の冷媒管を備えた冷凍サイクル
JP5690834B2 (ja) * 2010-09-29 2015-03-25 東芝キヤリア株式会社 給湯システム
JP5634849B2 (ja) * 2010-12-17 2014-12-03 株式会社不二工機 ロータリ式四方切換弁
JP5765990B2 (ja) * 2011-03-29 2015-08-19 三菱電機株式会社 室内機及び空気調和装置
JP5791717B2 (ja) * 2011-07-14 2015-10-07 三菱電機株式会社 空気調和装置
JP5783215B2 (ja) * 2013-09-30 2015-09-24 ダイキン工業株式会社 空気調和装置
JP5988953B2 (ja) * 2013-11-19 2016-09-07 三菱電機株式会社 ヒートポンプ式給湯機
JP6072178B1 (ja) * 2015-09-10 2017-02-01 三菱電機株式会社 冷凍サイクル装置
US10724777B2 (en) * 2015-10-08 2020-07-28 Mitsubishi Electric Corporation Refrigeration cycle apparatus capable of performing refrigerant recovery operation and controlling blower
EP3367021B1 (de) * 2015-10-20 2022-02-23 Mitsubishi Electric Corporation Kältekreislaufvorrichtung
JP2018096632A (ja) * 2016-12-14 2018-06-21 三菱重工サーマルシステムズ株式会社 冷媒回路システム、制御装置及び制御方法
JP7233845B2 (ja) * 2018-03-27 2023-03-07 株式会社富士通ゼネラル 空気調和機

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002243276A (ja) 2001-02-20 2002-08-28 Toshiba Kyaria Kk ヒートポンプ給湯器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131863A (ja) * 1983-01-17 1984-07-28 株式会社東芝 空気調和装置
JPS6158468U (de) * 1984-09-19 1986-04-19
JPS62162857A (ja) * 1986-01-13 1987-07-18 株式会社東芝 冷凍サイクル装置
JPS62213654A (ja) * 1986-03-14 1987-09-19 株式会社日立製作所 ヒ−トポンプ式冷凍サイクル
JPS6325471A (ja) * 1986-07-17 1988-02-02 三菱電機株式会社 空気調和装置
JPH0633922B2 (ja) * 1986-09-19 1994-05-02 ダイキンプラント株式会社 サ−モタンクを備えた冷凍装置
JPH01114680A (ja) * 1987-10-29 1989-05-08 Sanden Corp ヒートポンプ式冷却装置
JPH0238061U (de) * 1988-09-03 1990-03-13
JPH02130362A (ja) * 1988-11-11 1990-05-18 Hitachi Ltd 空冷ヒートポンプ式給湯機の除霜制御方法
JPH02197772A (ja) * 1988-12-22 1990-08-06 Daikin Ind Ltd 空気調和機
JPH09257346A (ja) * 1996-03-19 1997-10-03 Mitsubishi Heavy Ind Ltd ヒートポンプ式空気調和機
EP1033541B1 (de) * 1997-11-17 2004-07-21 Daikin Industries, Limited Kältegerät
WO2006103815A1 (ja) * 2005-03-28 2006-10-05 Toshiba Carrier Corporation 給湯機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002243276A (ja) 2001-02-20 2002-08-28 Toshiba Kyaria Kk ヒートポンプ給湯器

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9557085B2 (en) 2009-07-22 2017-01-31 Mitsubishi Electric Corporation Heat pump apparatus
US9709308B2 (en) 2010-01-26 2017-07-18 Mitsubishi Electric Corporation Heat pump device and refrigerant bypass method
EP2733444A4 (de) * 2011-07-14 2015-06-24 Mitsubishi Electric Corp Klimaanlage
EP3249321A4 (de) * 2015-02-02 2017-12-27 Mitsubishi Heavy Industries Thermal Systems, Ltd. Steuerungsvorrichtung, steuerungsverfahren und programm
EP3617616A4 (de) * 2017-04-27 2020-03-04 Mitsubishi Electric Corporation Kältekreislaufvorrichtung
CN108007016A (zh) * 2017-10-30 2018-05-08 珠海格力电器股份有限公司 热泵系统以及热泵系统的控制方法
CN110895061A (zh) * 2018-09-12 2020-03-20 艾默生环境优化技术(苏州)有限公司 冷媒循环系统及冷媒循环系统除霜的方法
US12385675B2 (en) 2020-05-08 2025-08-12 Daikin Industries, Ltd. Refrigeration cycle apparatus
EP4257893A4 (de) * 2020-12-01 2024-05-15 Daikin Industries, Ltd. Kältekreislaufsystem
US12410956B2 (en) 2020-12-01 2025-09-09 Daikin Industries, Ltd. Refrigeration cycle system
CN117199631A (zh) * 2023-09-21 2023-12-08 无锡启乐智能装备有限公司 一种宽调节范围的直冷直热式电池包控温测试系统
CN119412835A (zh) * 2024-12-09 2025-02-11 华中科技大学 一种空气源热泵系统及其除霜控制方法

Also Published As

Publication number Publication date
JP4974714B2 (ja) 2012-07-11
EP1967801A3 (de) 2014-09-24
EP1967801B1 (de) 2017-07-26
JP2008224088A (ja) 2008-09-25

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