EP2366968A3 - Method and device for thawing an evaporator of a heat pump device - Google Patents

Method and device for thawing an evaporator of a heat pump device Download PDF

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Publication number
EP2366968A3
EP2366968A3 EP11158045A EP11158045A EP2366968A3 EP 2366968 A3 EP2366968 A3 EP 2366968A3 EP 11158045 A EP11158045 A EP 11158045A EP 11158045 A EP11158045 A EP 11158045A EP 2366968 A3 EP2366968 A3 EP 2366968A3
Authority
EP
European Patent Office
Prior art keywords
temperature
evaporator
heat pump
pump device
delta
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
EP11158045A
Other languages
German (de)
French (fr)
Other versions
EP2366968A2 (en
EP2366968B1 (en
Inventor
Manuel Stauch
Patrick Schimke
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.)
Wolf GmbH
Original Assignee
Wolf GmbH
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 Wolf GmbH filed Critical Wolf GmbH
Publication of EP2366968A2 publication Critical patent/EP2366968A2/en
Publication of EP2366968A3 publication Critical patent/EP2366968A3/en
Application granted granted Critical
Publication of EP2366968B1 publication Critical patent/EP2366968B1/en
Active 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits
    • 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

Abstract

Die Erfindung betrifft ein Verfahren zum Abtauen eines Verdampfers (16) einer Wärmepumpenvorrichtung, insbesondere einer Luft-Wasser-Wärmepumpenvorrichtung, wobei zu oder unmittelbar nach einem charakteristischen Zeitpunkt, insbesondere einer Beendigung eines Abtauvorgangs, eine Temperatur TL,0 eines den Verdampfer (16) passierenden Luftstroms und eine Kältemitteltemperatur TK,0 bestimmt und gespeichert werden, wobei eine Temperaturdifferenz ΔT0 aus der Temperatur TL,0 des den Verdampfer (16) passierenden Luftstroms und der Kältemitteltemperatur TK,0 bestimmt und gespeichert wird, wobei ein Abtauvorgang eingeleitet wird, wenn eine aktuelle Temperaturdifferenz ΔTakt aus der Temperatur TL,0 und einer aktuellen Kältemitteltemperatur TK,akt die Summe aus der Temperaturdifferenz ΔT0 und einer Konstanten (Y, A, B) übersteigt.

Figure imgaf001
The invention relates to a method for defrosting an evaporator (16) of a heat pump device, in particular an air-water heat pump device, wherein at or immediately after a characteristic time, in particular a termination of a defrosting, a temperature T L, 0 of the evaporator (16). passing air current and a refrigerant temperature T K be 0 is determined and stored, with a temperature difference .DELTA.T 0 from the temperature T L, 0 of the evaporator (16) passing air flow and the refrigerant temperature T K, 0 is determined and stored, wherein a defrost operation initiated becomes, when a current temperature difference .DELTA.T act of the temperature T L, 0 and a current refrigerant temperature T K, akt exceeds the sum of the temperature difference .DELTA.T 0 and a constant (Y, A, B).
Figure imgaf001
EP11158045.2A 2010-03-17 2011-03-14 Method and device for thawing an evaporator of a heat pump device Active EP2366968B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010016005 2010-03-17
DE102010016603 2010-04-23

Publications (3)

Publication Number Publication Date
EP2366968A2 EP2366968A2 (en) 2011-09-21
EP2366968A3 true EP2366968A3 (en) 2012-07-18
EP2366968B1 EP2366968B1 (en) 2017-05-17

Family

ID=44201935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11158045.2A Active EP2366968B1 (en) 2010-03-17 2011-03-14 Method and device for thawing an evaporator of a heat pump device

Country Status (1)

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EP (1) EP2366968B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2762238T3 (en) * 2010-07-01 2020-05-22 Carrier Corp Defrost on demand with evaporator refrigerant saturation
CN103292419B (en) * 2013-05-30 2016-06-22 四川长虹电器股份有限公司 A kind of apparatus and method preventing coolant from assembling

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5520348A (en) * 1978-07-31 1980-02-13 Hitachi Ltd Defrosting controller
JPS57164245A (en) * 1981-03-31 1982-10-08 Mitsubishi Heavy Ind Ltd Air conditioner
JPS5816140A (en) * 1981-07-21 1983-01-29 Mitsubishi Electric Corp Controlling device for defrosting operation
DE3227604A1 (en) * 1981-07-29 1983-02-24 Olsberg Gesellschaft für Produktion und Absatz mbH, 5790 Brilon Automatic defrosting device for heat pump evaporators
US4406133A (en) * 1980-02-21 1983-09-27 The Trane Company Control and method for defrosting a heat pump outdoor heat exchanger
DE3333907A1 (en) * 1983-09-20 1985-04-04 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München METHOD AND DEVICE FOR DEFROSTING HEAT PUMPS
US4573326A (en) * 1985-02-04 1986-03-04 American Standard Inc. Adaptive defrost control for heat pump system
JPS61101736A (en) * 1984-10-23 1986-05-20 Mitsubishi Heavy Ind Ltd Defrosting control device of air conditioner
DE3441912A1 (en) * 1984-11-16 1986-05-28 Fichtel & Sachs Ag, 8720 Schweinfurt Method for automatically defrosting an evaporator, acted upon by air, of a heat pump
EP0285690A1 (en) * 1987-04-08 1988-10-12 Viessmann Werke GmbH & Co. Process and apparatus for the temperature dependent defrosting of cooling plants according to demand
US6334321B1 (en) * 2000-03-15 2002-01-01 Carrier Corporation Method and system for defrost control on reversible heat pumps

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110850A1 (en) 1981-03-20 1982-09-30 Küppersbusch AG, 4650 Gelsenkirchen Control device for automatically defrosting an evaporator
DD226355A1 (en) 1984-04-18 1985-08-21 Lpg Muehlauer Obst METHOD AND DEVICE FOR INTRODUCING THE DEFROSTING OF TIRE TREATMENT TO EVAPORATORS OF COZY FACILITIES
DE3509664A1 (en) 1985-03-18 1986-09-25 SEP Gesellschaft für technische Studien, Entwicklung, Planung mbH, 8000 München Method and device for the automatic defrosting of evaporators acted upon by air in refrigerant circuits, in particular of heat pumps
DE102006024871B4 (en) 2006-05-24 2019-08-08 ait-deutschland GmbH A method of defrosting the evaporator of a heat pump heating system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5520348A (en) * 1978-07-31 1980-02-13 Hitachi Ltd Defrosting controller
US4406133A (en) * 1980-02-21 1983-09-27 The Trane Company Control and method for defrosting a heat pump outdoor heat exchanger
JPS57164245A (en) * 1981-03-31 1982-10-08 Mitsubishi Heavy Ind Ltd Air conditioner
JPS5816140A (en) * 1981-07-21 1983-01-29 Mitsubishi Electric Corp Controlling device for defrosting operation
DE3227604A1 (en) * 1981-07-29 1983-02-24 Olsberg Gesellschaft für Produktion und Absatz mbH, 5790 Brilon Automatic defrosting device for heat pump evaporators
DE3333907A1 (en) * 1983-09-20 1985-04-04 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München METHOD AND DEVICE FOR DEFROSTING HEAT PUMPS
JPS61101736A (en) * 1984-10-23 1986-05-20 Mitsubishi Heavy Ind Ltd Defrosting control device of air conditioner
DE3441912A1 (en) * 1984-11-16 1986-05-28 Fichtel & Sachs Ag, 8720 Schweinfurt Method for automatically defrosting an evaporator, acted upon by air, of a heat pump
US4573326A (en) * 1985-02-04 1986-03-04 American Standard Inc. Adaptive defrost control for heat pump system
EP0285690A1 (en) * 1987-04-08 1988-10-12 Viessmann Werke GmbH & Co. Process and apparatus for the temperature dependent defrosting of cooling plants according to demand
US6334321B1 (en) * 2000-03-15 2002-01-01 Carrier Corporation Method and system for defrost control on reversible heat pumps

Also Published As

Publication number Publication date
EP2366968A2 (en) 2011-09-21
EP2366968B1 (en) 2017-05-17

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