FR2088027A1 - Defrosting refrigerant evaporator - employing a liquid agent to reduce freezing point - Google Patents

Defrosting refrigerant evaporator - employing a liquid agent to reduce freezing point

Info

Publication number
FR2088027A1
FR2088027A1 FR7016906A FR7016906A FR2088027A1 FR 2088027 A1 FR2088027 A1 FR 2088027A1 FR 7016906 A FR7016906 A FR 7016906A FR 7016906 A FR7016906 A FR 7016906A FR 2088027 A1 FR2088027 A1 FR 2088027A1
Authority
FR
France
Prior art keywords
liquid agent
employing
freezing point
refrigerant evaporator
air flow
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Withdrawn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
FR7016906A
Other languages
French (fr)
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.)
John Bean Technologies AB
Original Assignee
Frigoscandia Contracting AB
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 Frigoscandia Contracting AB filed Critical Frigoscandia Contracting AB
Priority to FR7016906A priority Critical patent/FR2088027A1/en
Publication of FR2088027A1 publication Critical patent/FR2088027A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • F25D21/10—Removing frost by spraying with fluid

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

An evaporator grid in a horizontal air-flow cooler is defrosted by (1) switching off air flow and refrigerant; (2) coating the evaporator grid with a liquid agent which reduces the freezingpoint, e.g. a mixture of glycol and water; (3) restoring the refrigerant supply to evaporator to freeze a coating of the liquid agent on the grid, and (4) switching on the air flow. There is no danger of entraining the liquid agent in the air flow- this is vital in the case of foodstuffs and has previously entailed an eliminator which is very difficult to arrange in horizontal air flow.
FR7016906A 1970-05-08 1970-05-08 Defrosting refrigerant evaporator - employing a liquid agent to reduce freezing point Withdrawn FR2088027A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7016906A FR2088027A1 (en) 1970-05-08 1970-05-08 Defrosting refrigerant evaporator - employing a liquid agent to reduce freezing point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7016906A FR2088027A1 (en) 1970-05-08 1970-05-08 Defrosting refrigerant evaporator - employing a liquid agent to reduce freezing point

Publications (1)

Publication Number Publication Date
FR2088027A1 true FR2088027A1 (en) 1972-01-07

Family

ID=9055278

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7016906A Withdrawn FR2088027A1 (en) 1970-05-08 1970-05-08 Defrosting refrigerant evaporator - employing a liquid agent to reduce freezing point

Country Status (1)

Country Link
FR (1) FR2088027A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474666A1 (en) * 1980-01-24 1981-07-31 Inst Francais Du Petrole PROCESS FOR PRODUCING HEAT USING A HEAT PUMP USING A MIXTURE OF FLUIDS AS A WORKING AGENT AND AIR AS A SOURCE OF HEAT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474666A1 (en) * 1980-01-24 1981-07-31 Inst Francais Du Petrole PROCESS FOR PRODUCING HEAT USING A HEAT PUMP USING A MIXTURE OF FLUIDS AS A WORKING AGENT AND AIR AS A SOURCE OF HEAT

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Legal Events

Date Code Title Description
ST Notification of lapse