[go: up one dir, main page]

EP1967801A3 - Hot water system - Google Patents

Hot water system Download PDF

Info

Publication number
EP1967801A3
EP1967801A3 EP07254439.8A EP07254439A EP1967801A3 EP 1967801 A3 EP1967801 A3 EP 1967801A3 EP 07254439 A EP07254439 A EP 07254439A EP 1967801 A3 EP1967801 A3 EP 1967801A3
Authority
EP
European Patent Office
Prior art keywords
refrigerant
bypath
hot water
water
electronic expansion
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
EP07254439.8A
Other languages
German (de)
French (fr)
Other versions
EP1967801A2 (en
EP1967801B1 (en
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/en
Publication of EP1967801A3 publication Critical patent/EP1967801A3/en
Application granted granted Critical
Publication of EP1967801B1 publication Critical patent/EP1967801B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

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)

Abstract

A hot water system includes: a compressor (1); a four-way valve (2) for switching the direction of the refrigerating cycle during defrosting operation; a water heat exchanger (3) for transferring heat between water and the refrigerant; an electronic expansion valve (4) for controlling the flow rate of the refrigerant to reduce the pressure; and an air heat exchanger (5) for transferring heat between air and the refrigerant, which are connected in that order by a pipeline (7) to form a refrigerating cycle to heat the water. The hot water system further includes; a bypath (8) for redirecting the refrigerant from a portion of the pipeline (7) in upstream of the electronic expansion valve (4) to the inlet of the compressor (1) during defrosting operation; and a solenoid valve (9) for switching installed in the bypath (8). When the solenoid valve (9) is opened to redirect part of the refrigerant to pass through the water heat exchanger (3) acting as an evaporator to the bypath (8) during defrosting operation, the amount of the refrigerant to pass through the bypath (8) is controlled by changing the degree of opening of the electronic expansion Valve (4).
EP07254439.8A 2007-03-09 2007-11-13 Hot water system Not-in-force EP1967801B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007060238A JP4974714B2 (en) 2007-03-09 2007-03-09 Water heater

Publications (3)

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

Family

ID=39591405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07254439.8A Not-in-force EP1967801B1 (en) 2007-03-09 2007-11-13 Hot water system

Country Status (2)

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

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4937244B2 (en) * 2008-12-19 2012-05-23 三菱電機株式会社 Heat pump device and heat pump water heater and air conditioner equipped with the same
JP5427428B2 (en) 2009-02-06 2014-02-26 三菱重工業株式会社 Heat pump type hot water supply / air conditioner
EP2458305B1 (en) * 2009-07-22 2019-06-12 Mitsubishi Electric Corporation Heat pump device
KR100984305B1 (en) * 2009-09-10 2010-09-30 에이치에스지(주) Heat pump for supplying cool and hot water
US9709308B2 (en) 2010-01-26 2017-07-18 Mitsubishi Electric Corporation Heat pump device and refrigerant bypass method
KR101169516B1 (en) 2010-02-04 2012-07-27 엘지전자 주식회사 Heat pump heating apparatus
JP5904628B2 (en) * 2010-05-26 2016-04-13 サイエンス株式会社 Refrigeration cycle with refrigerant pipe for defrost operation
WO2012043379A1 (en) * 2010-09-29 2012-04-05 東芝キヤリア株式会社 Hot water supply system
JP5634849B2 (en) * 2010-12-17 2014-12-03 株式会社不二工機 Rotary four-way switching valve
JP5765990B2 (en) * 2011-03-29 2015-08-19 三菱電機株式会社 Indoor unit and air conditioner
JP5791717B2 (en) * 2011-07-14 2015-10-07 三菱電機株式会社 Air conditioner
WO2013008278A1 (en) * 2011-07-14 2013-01-17 三菱電機株式会社 Air-conditioning device
JP5783215B2 (en) * 2013-09-30 2015-09-24 ダイキン工業株式会社 Air conditioner
JP5988953B2 (en) * 2013-11-19 2016-09-07 三菱電機株式会社 Heat pump water heater
JP6501392B2 (en) * 2015-02-02 2019-04-17 三菱重工サーマルシステムズ株式会社 Control device, control method and program
JP6072178B1 (en) * 2015-09-10 2017-02-01 三菱電機株式会社 Refrigeration cycle equipment
CN112963986B (en) * 2015-10-08 2022-09-20 三菱电机株式会社 Refrigeration cycle device
EP3367021B1 (en) * 2015-10-20 2022-02-23 Mitsubishi Electric Corporation Refrigeration cycle device
JP2018096632A (en) * 2016-12-14 2018-06-21 三菱重工サーマルシステムズ株式会社 Refrigerant circuit system, control device and control method
EP3617616B1 (en) * 2017-04-27 2023-11-15 Mitsubishi Electric Corporation Refrigeration cycle device
CN108007016A (en) * 2017-10-30 2018-05-08 珠海格力电器股份有限公司 Heat pump system and control method for heat pump system
JP7233845B2 (en) * 2018-03-27 2023-03-07 株式会社富士通ゼネラル air conditioner
CN110895061B (en) * 2018-09-12 2024-12-06 谷轮环境科技（苏州）有限公司 Refrigerant circulation system and method for defrosting the refrigerant circulation system
WO2021225177A1 (en) 2020-05-08 2021-11-11 ダイキン工業株式会社 Refrigeration cycle device
JP7436933B2 (en) 2020-12-01 2024-02-22 ダイキン工業株式会社 Refrigeration cycle system
CN117199631B (en) * 2023-09-21 2024-08-16 无锡启乐智能装备有限公司 Direct-cooling and direct-heating type battery pack temperature control test system with wide adjusting range
CN119412835A (en) * 2024-12-09 2025-02-11 华中科技大学 Air source heat pump system and defrosting control method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519214A (en) * 1983-01-17 1985-05-28 Tokyo Shibaura Denki Kabushiki Kaisha Air conditioner
US4799363A (en) * 1986-07-17 1989-01-24 Mitsubishi Denki Kabushiki Kaisha Room air conditioner
WO2006103815A1 (en) * 2005-03-28 2006-10-05 Toshiba Carrier Corporation Hot water supply device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158468U (en) * 1984-09-19 1986-04-19
JPS62162857A (en) * 1986-01-13 1987-07-18 株式会社東芝 Refrigeration cycle device
JPS62213654A (en) * 1986-03-14 1987-09-19 株式会社日立製作所 Heat pump refrigeration cycle
JPH0633922B2 (en) * 1986-09-19 1994-05-02 ダイキンプラント株式会社 Refrigeration system with thermo tank
JPH01114680A (en) * 1987-10-29 1989-05-08 Sanden Corp Heat pump type cooling device
JPH0238061U (en) * 1988-09-03 1990-03-13
JPH02130362A (en) * 1988-11-11 1990-05-18 Hitachi Ltd Defrosting control method for air-cooled heat pump water heaters
JPH02197772A (en) * 1988-12-22 1990-08-06 Daikin Ind Ltd Air conditioner
JPH09257346A (en) * 1996-03-19 1997-10-03 Mitsubishi Heavy Ind Ltd Heat pump air-conditioner
US6405559B1 (en) * 1997-11-17 2002-06-18 Daikin Industries, Ltd. Refrigerating apparatus
JP4078036B2 (en) 2001-02-20 2008-04-23 東芝キヤリア株式会社 Heat pump water heater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519214A (en) * 1983-01-17 1985-05-28 Tokyo Shibaura Denki Kabushiki Kaisha Air conditioner
US4799363A (en) * 1986-07-17 1989-01-24 Mitsubishi Denki Kabushiki Kaisha Room air conditioner
WO2006103815A1 (en) * 2005-03-28 2006-10-05 Toshiba Carrier Corporation Hot water supply device

Also Published As

Publication number Publication date
EP1967801A2 (en) 2008-09-10
EP1967801B1 (en) 2017-07-26
JP4974714B2 (en) 2012-07-11
JP2008224088A (en) 2008-09-25

Similar Documents

Publication Publication Date Title
EP1967801A3 (en) Hot water system
CN101469926B (en) Improved air conditioner defrosting system and its control method
CN101329093B (en) Simultaneous cooling and heating multi-connected air conditioner and its control method
KR101598624B1 (en) Air conditioning system
EP1972871A3 (en) Hot water system
EP2339276A3 (en) Refrigerator and operation control method thereof
CN101776308B (en) Energy-saving air conditioner
EP2538145A3 (en) Heat Pump and Method for Controlling the Same
WO2008093538A1 (en) Refrigeration device
CN102109202B (en) Air conditioner
KR101401909B1 (en) Heat pump chiller system by non-frosting continuous operating the heat exchanger and Defrost method
RU2008143068A (en) ICE STORAGE USING ITS AIR CONDITIONING SYSTEM AND METHOD FOR MANAGING THE MENTIONED SYSTEM
EP1538405A3 (en) Refrigeration cycle apparatus
EP2196746A3 (en) Refrigeration apparatus
CN203949402U (en) A kind of cooling device with hot gas defrosting function
CN105091392B (en) Heat recovery multi-split system and control method thereof
EP1655555A3 (en) Air conditioner
CN106288484B (en) A kind of air source heat pump system and its defrosting control method
EP1983277A3 (en) Refrigeration cycle apparatus
EP1589299A3 (en) Heat pump and compressor discharge pressure controlling apparatus for the same
CN205718050U (en) Compressor system and air conditioning system
CN211424782U (en) Hot fluorine defrosting device and air conditioning unit
CN110986440B (en) Thermal fluorine defrosting device, air conditioning unit and defrosting control method
CN201314726Y (en) Parallel flow air conditioner
CN104764240B (en) A kind of air-conditioning system and its control method for possessing defrosting function

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 47/02 20060101AFI20140820BHEP

17P Request for examination filed

Effective date: 20150317

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AKX Designation fees paid

Designated state(s): DE FR GB SE

AXX Extension fees paid

Extension state: RS

Extension state: HR

Extension state: AL

Extension state: BA

Extension state: MK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20170228

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20170228

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007051752

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007051752

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180430

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20200811

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 602007051752

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20220930

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20221010

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20221011

Year of fee payment: 16

Ref country code: DE

Payment date: 20220621

Year of fee payment: 16

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230512

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602007051752

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20231113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231113

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231130

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240601