FR2342445A1 - Pressure relief valve for cold store - has heating element to prevent ice blocking of inwardly and outwardly opening sprung flaps - Google Patents

Pressure relief valve for cold store - has heating element to prevent ice blocking of inwardly and outwardly opening sprung flaps

Info

Publication number
FR2342445A1
FR2342445A1 FR7605225A FR7605225A FR2342445A1 FR 2342445 A1 FR2342445 A1 FR 2342445A1 FR 7605225 A FR7605225 A FR 7605225A FR 7605225 A FR7605225 A FR 7605225A FR 2342445 A1 FR2342445 A1 FR 2342445A1
Authority
FR
France
Prior art keywords
flaps
cold store
relief valve
pressure relief
inwardly
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
FR7605225A
Other languages
French (fr)
Other versions
FR2342445B1 (en
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.)
Fermod SA
Original Assignee
Fermod SA
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 Fermod SA filed Critical Fermod SA
Priority to FR7605225A priority Critical patent/FR2342445A1/en
Publication of FR2342445A1 publication Critical patent/FR2342445A1/en
Application granted granted Critical
Publication of FR2342445B1 publication Critical patent/FR2342445B1/fr
Granted 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/047—Pressure equalising devices

Abstract

The inwards and outwards pressure relief valve (1) is mounted by the flange (6) on the wall (P) of the cold store. The plate (8) has two square holes which are covered by spring loaded flaps (16). One flap opens outwards to relieve a high pressure in the cold store and the other flap opens inwards to relieve a depression. An electric element (4) is mounted on the bracket (3) and projects into the opening (0) to maintain the temperature in this region slightly above 0 deg.C. This prevents ice forming on the flaps (16) and so avoids the risk of ice causing the flaps to stick in the closed position.
FR7605225A 1976-02-25 1976-02-25 Pressure relief valve for cold store - has heating element to prevent ice blocking of inwardly and outwardly opening sprung flaps Granted FR2342445A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7605225A FR2342445A1 (en) 1976-02-25 1976-02-25 Pressure relief valve for cold store - has heating element to prevent ice blocking of inwardly and outwardly opening sprung flaps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7605225A FR2342445A1 (en) 1976-02-25 1976-02-25 Pressure relief valve for cold store - has heating element to prevent ice blocking of inwardly and outwardly opening sprung flaps

Publications (2)

Publication Number Publication Date
FR2342445A1 true FR2342445A1 (en) 1977-09-23
FR2342445B1 FR2342445B1 (en) 1979-07-20

Family

ID=9169576

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605225A Granted FR2342445A1 (en) 1976-02-25 1976-02-25 Pressure relief valve for cold store - has heating element to prevent ice blocking of inwardly and outwardly opening sprung flaps

Country Status (1)

Country Link
FR (1) FR2342445A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257445A (en) * 1978-10-26 1981-03-24 Buildex Incorporated Shielded vent port
EP0030046A2 (en) * 1979-12-04 1981-06-10 Maccari Silvana Pressure compensation valve, particularly for hot or cold isothermal rooms
US6038879A (en) * 1995-08-08 2000-03-21 Yvon Turcotte Combined air exchange and air conditioning unit
FR2932239A1 (en) * 2008-06-05 2009-12-11 Fermod Valve for cold chamber storing food product, has flaps for closing respective pipes, and maintained in support against sealing seats by weight of flaps when pressure variation on both sides of each flap is less than threshold value

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2018147A1 (en) * 1968-09-16 1970-05-29 Gpe Controls Inc
FR2221654A1 (en) * 1973-03-13 1974-10-11 Baermann Max

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2018147A1 (en) * 1968-09-16 1970-05-29 Gpe Controls Inc
FR2221654A1 (en) * 1973-03-13 1974-10-11 Baermann Max

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257445A (en) * 1978-10-26 1981-03-24 Buildex Incorporated Shielded vent port
EP0030046A2 (en) * 1979-12-04 1981-06-10 Maccari Silvana Pressure compensation valve, particularly for hot or cold isothermal rooms
EP0030046A3 (en) * 1979-12-04 1982-02-03 Maccari Silvana Pressure compensation valve, particularly for hot or cold isothermal rooms
US6038879A (en) * 1995-08-08 2000-03-21 Yvon Turcotte Combined air exchange and air conditioning unit
FR2932239A1 (en) * 2008-06-05 2009-12-11 Fermod Valve for cold chamber storing food product, has flaps for closing respective pipes, and maintained in support against sealing seats by weight of flaps when pressure variation on both sides of each flap is less than threshold value

Also Published As

Publication number Publication date
FR2342445B1 (en) 1979-07-20

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