DE102004010066A1 - Vaporizer defrosting method for air/water heat pump, involves switching heat pump circulation from reversal cycle mode of operation to heat pump operation, and feeding hot gas to vaporizer through bypass, if liquefier freezes - Google Patents
Vaporizer defrosting method for air/water heat pump, involves switching heat pump circulation from reversal cycle mode of operation to heat pump operation, and feeding hot gas to vaporizer through bypass, if liquefier freezes Download PDFInfo
- Publication number
- DE102004010066A1 DE102004010066A1 DE102004010066A DE102004010066A DE102004010066A1 DE 102004010066 A1 DE102004010066 A1 DE 102004010066A1 DE 102004010066 A DE102004010066 A DE 102004010066A DE 102004010066 A DE102004010066 A DE 102004010066A DE 102004010066 A1 DE102004010066 A1 DE 102004010066A1
- Authority
- DE
- Germany
- Prior art keywords
- heat pump
- vaporizer
- hot gas
- bypass
- liquefier
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000010257 thawing Methods 0.000 title claims description 17
- 239000006200 vaporizer Substances 0.000 title abstract 4
- 230000008014 freezing Effects 0.000 claims abstract description 8
- 238000007710 freezing Methods 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims description 10
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
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
-
- 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
- F25B2600/2501—Bypass 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/195—Pressures of the condenser
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2116—Temperatures of a condenser
- F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Abtauen eines Verdampfers eines Wärmepumpenkreises, wobei mittels Kreisumkehr abgetaut wird und im Kreisumkehrbetrieb ein Einfrieren des Verflüssigers des Wärmepumpenbetriebs droht.The The invention relates to a method for defrosting an evaporator of a Heat pump cycle being defrosted by means of circuit reversal and in the recirculating mode freezing the condenser of the heat pump operation threatening.
In
der
Neben
dieser Möglichkeit
des Abtauens durch Kreisumkehr ist in der
Das Abtauen luftbeaufschlagter, vereister Verdampfer mittels Kreisumkehr ist energetisch effizienter als das Abtauen mittels Heißgas, da bei der Kreisumkehrabtauung anteilig Wärme zum Abtauen genutzt wird, die mit einer Leistungszahl > 1 erzeugt wurde. Diese Wärme wird, beispielsweise bei einer Luft/Wasser-Wärmepumpe durch Wasser bereitgestellt. Ein kritischer Zustand ergibt sich dann, wenn das Wasser beim Abtauen mittels Kreisumkehr bis in die Nähe des Gefrierpunktes abgekühlt wird und es dann zu einem Einfrieren des Verflüssigers der Wärmepumpe kommen kann. Um dies zu vermeiden, wird nach dem Stand der Technik das Abtauen bei dem Eintreten dieses kritischen Falles beendet. Ungünstig ist dies, weil nicht sicher ist, dass beim Auftreten dieses Zustandes der Verdampfer tatsächlich vollständig enteist ist.The Defrosting air-exposed, iced evaporators by means of a circuit reversal is energetically more efficient than the defrosting by means of hot gas, since in the reverse circulation, proportionate heat is used for defrosting, those with a figure of merit> 1 was generated. This heat is provided, for example, in an air / water heat pump by water. A critical condition arises when the water is defrosting by means of a circle reversal to near the freezing point cooled and then it will freeze the condenser of the heat pump can come. To avoid this, according to the prior art the defrost stops when this critical case occurs. Unfavorable This is because it is not certain when this condition occurs the evaporator is actually completely de-iced is.
Aufgabe der Erfindung ist es, ein Verfahren der eingangs genannten Art vorzuschlagen, bei dem das Abtauen energetisch effizient ist und nicht vorzeitig beendet werden muss.task The invention is to propose a method of the type mentioned, Defrosting is energetically efficient and not premature has to be ended.
Erfindungsgemäß ist obige Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention is the above Problem solved by the features of claim 1.
Dabei sind die Möglichkeiten des Abtauens mittels Kreislaufumkehr und Heißgas kombiniert. Das Abtauen erfolgt vorrangig durch Kreisumkehr. Ergeben sich dann beim Kreisumkehrbetrieb Betriebszustände, bei denen der Verflüssiger einzufrieren droht, dann wird das Abtauen durch die Heißgasabtauung fortgesetzt. Es ist also ein störungsfreier und energetisch effizienter Abtaubetrieb gewährleistet.there are the possibilities Defrosting combined by means of circulation reversal and hot gas. The defrosting takes place primarily by circle reversal. Then surrender to the recirculating mode Operating conditions, where the liquefier threatens to freeze, then the defrosting is continued by the hot gas defrosting. So it's a trouble-free and energetically efficient defrosting ensured.
In bevorzugter Weiterbildung der Erfindung wird zum Detektieren des drohenden Einfrierens des Verflüssigers der kältemittelseitige Druck oder die wasserseitige Temperatur überwacht.In preferred development of the invention is for detecting the imminent freezing of the condenser the refrigerant side Pressure or the water-side temperature monitored.
Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung eines Ausführungsbeispiels. Die Figur zeigt eine Luft/Wasser-Wärmepumpe schematisch.Further advantageous embodiments of the invention will become apparent from the dependent claims and the following description of an embodiment. The figure shows an air / water heat pump schematically.
In
einem Wärmepumpenkreis
(vgl. Figur) liegen ein Verdichter
Der
Verdichter
Die
Funktionsweise der beschriebenen Einrichtung ist im wesentlichen
folgende:
Ist der Verdampfer
Is the evaporator
Über den
Druckwächter
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004010066.7A DE102004010066B4 (en) | 2004-03-02 | 2004-03-02 | Defrosting procedure for a heat pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004010066.7A DE102004010066B4 (en) | 2004-03-02 | 2004-03-02 | Defrosting procedure for a heat pump |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004010066A1 true DE102004010066A1 (en) | 2005-09-22 |
DE102004010066B4 DE102004010066B4 (en) | 2021-01-21 |
Family
ID=34877237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004010066.7A Expired - Lifetime DE102004010066B4 (en) | 2004-03-02 | 2004-03-02 | Defrosting procedure for a heat pump |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004010066B4 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ302759B6 (en) * | 2006-05-12 | 2011-10-26 | Klazar@Ludek | Heat pump with defrosting |
EP2940407A4 (en) * | 2012-12-26 | 2016-05-25 | Daikin Ind Ltd | Heat pump hot water heater |
DE102006013587B4 (en) * | 2006-03-22 | 2016-06-23 | Stiebel Eltron Gmbh & Co. Kg | heat pump |
DE102016013053A1 (en) * | 2016-10-27 | 2018-05-03 | Stiebel Eltron Gmbh & Co. Kg | Heating device and control method for a heating device |
DE102011100198B4 (en) | 2010-05-06 | 2018-08-30 | Denso Corporation | Heat pump cycle system with two grain compression mechanisms |
CN110986283A (en) * | 2019-11-26 | 2020-04-10 | 珠海格力电器股份有限公司 | Water multi-connected system heating anti-freezing mode control method, computer readable storage medium and air conditioner |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4313313A (en) * | 1980-01-17 | 1982-02-02 | Carrier Corporation | Apparatus and method for defrosting a heat exchanger of a refrigeration circuit |
JPH0799297B2 (en) * | 1986-06-25 | 1995-10-25 | 株式会社日立製作所 | Air conditioner |
JPH079331B2 (en) * | 1986-12-26 | 1995-02-01 | 松下電器産業株式会社 | Operation control method for heat pump type air conditioner |
JP3888403B2 (en) * | 1997-12-18 | 2007-03-07 | 株式会社富士通ゼネラル | Method and apparatus for controlling air conditioner |
DE19832682C2 (en) * | 1998-07-21 | 2000-10-05 | Stiebel Eltron Gmbh & Co Kg | Defrosting device for an evaporator of a heat pump or an air conditioner |
-
2004
- 2004-03-02 DE DE102004010066.7A patent/DE102004010066B4/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006013587B4 (en) * | 2006-03-22 | 2016-06-23 | Stiebel Eltron Gmbh & Co. Kg | heat pump |
CZ302759B6 (en) * | 2006-05-12 | 2011-10-26 | Klazar@Ludek | Heat pump with defrosting |
DE102011100198B4 (en) | 2010-05-06 | 2018-08-30 | Denso Corporation | Heat pump cycle system with two grain compression mechanisms |
EP2940407A4 (en) * | 2012-12-26 | 2016-05-25 | Daikin Ind Ltd | Heat pump hot water heater |
JPWO2014102934A1 (en) * | 2012-12-26 | 2017-01-12 | ダイキン工業株式会社 | Heat pump hot water heater |
DE102016013053A1 (en) * | 2016-10-27 | 2018-05-03 | Stiebel Eltron Gmbh & Co. Kg | Heating device and control method for a heating device |
CN110986283A (en) * | 2019-11-26 | 2020-04-10 | 珠海格力电器股份有限公司 | Water multi-connected system heating anti-freezing mode control method, computer readable storage medium and air conditioner |
CN110986283B (en) * | 2019-11-26 | 2021-06-18 | 珠海格力电器股份有限公司 | Water multi-connected system heating anti-freezing mode control method, computer readable storage medium and air conditioner |
Also Published As
Publication number | Publication date |
---|---|
DE102004010066B4 (en) | 2021-01-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R071 | Expiry of right |