EP0124110A2 - Dispositif de dégivrage pour plusieurs installations frigorifiques - Google Patents

Dispositif de dégivrage pour plusieurs installations frigorifiques Download PDF

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Publication number
EP0124110A2
EP0124110A2 EP84104776A EP84104776A EP0124110A2 EP 0124110 A2 EP0124110 A2 EP 0124110A2 EP 84104776 A EP84104776 A EP 84104776A EP 84104776 A EP84104776 A EP 84104776A EP 0124110 A2 EP0124110 A2 EP 0124110A2
Authority
EP
European Patent Office
Prior art keywords
evaporator
compressor
condenser
refrigerant circuit
defrosting device
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.)
Withdrawn
Application number
EP84104776A
Other languages
German (de)
English (en)
Other versions
EP0124110A3 (fr
Inventor
Manfred Umbach
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0124110A2 publication Critical patent/EP0124110A2/fr
Publication of EP0124110A3 publication Critical patent/EP0124110A3/fr
Withdrawn legal-status Critical Current

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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
    • F25D21/06—Removing frost
    • F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant 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
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/04—Desuperheaters
    • 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

Definitions

  • the invention relates to a defrosting device for a plurality of refrigeration systems.
  • Such a defrosting device is known from DE-OS 28 41 765, in which an additional condenser is switched into the refrigerant circuit of the refrigeration system, which is also connected to a heat circuit.
  • an additional condenser is switched into the refrigerant circuit of the refrigeration system, which is also connected to a heat circuit.
  • the heat circuit consists of a separate liquid circuit which is supplied to the defrost lines in or on the evaporator via controllable valves, so that defrosting of the evaporators can be carried out as required.
  • the heat cycle, for which an additional condenser is required, is complex.
  • the object of the present invention is to provide a defrosting device according to the preamble of claim 1, in which one can do without additional capacitors and separate heating circuits.
  • two refrigeration systems are provided, each having a refrigerant circuit 1 or 2, each comprising an evaporator 11 or 21, a condenser 12 or 22 and a compressor 13 or 23.
  • the evaporators 11, 21 are provided with an additional tube 14 or 24.
  • a solenoid valve 15 is arranged between the compressor 13 and the condenser 12. Between the compressor 13 and the solenoid valve 15, a line leading to the bore 24 of the evaporator 21 is provided with a solenoid valve 26, while the outlet of the bore 24 is connected via a check valve 27 to the line between the solenoid valve 15 and the condenser 12.
  • the refrigerant circuit 2 has a solenoid valve 25 between its compressor 23 and its condenser 22, the additional pipe 14 of the evaporator 11 of the refrigerant circuit 1 in turn being connected to the high-pressure side of the compressor 23 via a solenoid valve 16, while the pipe 14 is connected on the outlet side via a check valve 17 is connected to the line between the solenoid valve 25 and the capacitor 22.
  • the refrigerant heated in the compressor 23 is thus supplied to the bore 14 and thus to the evaporator 11 by closing the solenoid valve 25 and opening the solenoid valve 16.
  • the evaporator 31 is in turn provided with an additional bore 34.
  • the additional tubing 34 can preferably be fed from the high pressure side of the compressor 23 (again via a solenoid valve 36 and a check valve 37) by closing the solenoid valve 25 and opening the solenoid valve 36 to defrost the evaporator 31.
  • the largest compressor 23 present is preferably used to defrost the evaporators of the further refrigerant circuits 1, 3 (in the case of three or more refrigeration systems), while in particular the second largest compressor 13 is used to defrost the evaporator 21 in the refrigerant circuit 2, which contains the largest compressor 23 .
  • the check valves 17, 27, 37 prevent refrigerant shift during non-defrosting times.
  • the capacitors 12, 22, 32 can be air-cooled or water-cooled (indicated by a fan blade 40), whereby they are controlled via a pressostat 41 - similar to a heat recovery operation.
  • a subsequent or residual liquefaction of the refrigerant coming from the respective additional tubing 14, 24, 34 can be carried out in the condensers 12 and 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
EP84104776A 1983-04-28 1984-04-27 Dispositif de dégivrage pour plusieurs installations frigorifiques Withdrawn EP0124110A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833315391 DE3315391A1 (de) 1983-04-28 1983-04-28 Abtaueinrichtung fuer mehrere kaelteanlagen
DE3315391 1983-04-28

Publications (2)

Publication Number Publication Date
EP0124110A2 true EP0124110A2 (fr) 1984-11-07
EP0124110A3 EP0124110A3 (fr) 1985-06-12

Family

ID=6197569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104776A Withdrawn EP0124110A3 (fr) 1983-04-28 1984-04-27 Dispositif de dégivrage pour plusieurs installations frigorifiques

Country Status (2)

Country Link
EP (1) EP0124110A3 (fr)
DE (1) DE3315391A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825143A1 (fr) * 2001-05-28 2002-11-29 Energie Transfert Thermique Systeme monobloc et installation de production alternative ou simultanee d'eau chaude ou d'eau glacee par transfert thermique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234754A (en) * 1963-02-18 1966-02-15 Lester K Quick Reevaporator system for hot gas refrigeration defrosting systems
US3392541A (en) * 1967-02-06 1968-07-16 Larkin Coils Inc Plural compressor reverse cycle refrigeration or heat pump system
FR2266123B2 (fr) * 1974-03-28 1978-03-31 Chapuis Henri
US4122686A (en) * 1977-06-03 1978-10-31 Gulf & Western Manufacturing Company Method and apparatus for defrosting a refrigeration system
DE2841765C2 (de) * 1978-09-26 1983-08-18 Umbach, Manfred, 5020 Frechen Abtaueinrichtung für einen Kälteerzeuger
US4332137A (en) * 1979-10-22 1982-06-01 Carrier Corporation Heat exchange apparatus and method having two refrigeration circuits
US4359877A (en) * 1981-05-11 1982-11-23 General Electric Company Heat pump coil circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825143A1 (fr) * 2001-05-28 2002-11-29 Energie Transfert Thermique Systeme monobloc et installation de production alternative ou simultanee d'eau chaude ou d'eau glacee par transfert thermique

Also Published As

Publication number Publication date
DE3315391A1 (de) 1984-10-31
EP0124110A3 (fr) 1985-06-12
DE3315391C2 (fr) 1988-07-07

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Effective date: 19860213