FR2385140A1 - Temp. regulation system for liq. bath - uses heat exchanger assembly maintained at minus 78 degrees centigrade - Google Patents

Temp. regulation system for liq. bath - uses heat exchanger assembly maintained at minus 78 degrees centigrade

Info

Publication number
FR2385140A1
FR2385140A1 FR7614509A FR7614509A FR2385140A1 FR 2385140 A1 FR2385140 A1 FR 2385140A1 FR 7614509 A FR7614509 A FR 7614509A FR 7614509 A FR7614509 A FR 7614509A FR 2385140 A1 FR2385140 A1 FR 2385140A1
Authority
FR
France
Prior art keywords
methanol
heat exchanger
temp
valve
pipe
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
FR7614509A
Other languages
French (fr)
Other versions
FR2385140B1 (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.)
Compagnie Francaise de Raffinage SA
Original Assignee
Compagnie Francaise de Raffinage 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 Compagnie Francaise de Raffinage SA filed Critical Compagnie Francaise de Raffinage SA
Priority to FR7614509A priority Critical patent/FR2385140A1/en
Publication of FR2385140A1 publication Critical patent/FR2385140A1/en
Application granted granted Critical
Publication of FR2385140B1 publication Critical patent/FR2385140B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
    • G05D23/1393—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures characterised by the use of electric means

Abstract

The first enclosure contains methanol which is to be maintained at -30 deg.C. The enclosure has an agitator on a shaft driven by a motor. On the shaft there is a centrifuge pump. When the pump operates the methanol is pumped through the opening and passes into the pipe towards a regulating valve. From the valve the methanol is led by a pipe to an 'all or nothing' valve. A pipe passes into the heat exchanger maintained at a temp. of -78 deg.C. The methanol is also circulated by pipes and a valve which bypass the heat exchanger. When the methanol temp. in enclosure rises above -30 deg.C valve is opened so that the methanol can pass into the heat exchanger. The methanol circulated through the heat exchanger mixes with the methanol passing through the bypass pipe (16) into the input pipe.
FR7614509A 1976-05-13 1976-05-13 Temp. regulation system for liq. bath - uses heat exchanger assembly maintained at minus 78 degrees centigrade Granted FR2385140A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7614509A FR2385140A1 (en) 1976-05-13 1976-05-13 Temp. regulation system for liq. bath - uses heat exchanger assembly maintained at minus 78 degrees centigrade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7614509A FR2385140A1 (en) 1976-05-13 1976-05-13 Temp. regulation system for liq. bath - uses heat exchanger assembly maintained at minus 78 degrees centigrade

Publications (2)

Publication Number Publication Date
FR2385140A1 true FR2385140A1 (en) 1978-10-20
FR2385140B1 FR2385140B1 (en) 1979-07-27

Family

ID=9173109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614509A Granted FR2385140A1 (en) 1976-05-13 1976-05-13 Temp. regulation system for liq. bath - uses heat exchanger assembly maintained at minus 78 degrees centigrade

Country Status (1)

Country Link
FR (1) FR2385140A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484088A1 (en) * 1980-06-10 1981-12-11 Ciba Geigy Ag HEAT FLOW CALORIMETER AND METHOD OF OPERATION

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484088A1 (en) * 1980-06-10 1981-12-11 Ciba Geigy Ag HEAT FLOW CALORIMETER AND METHOD OF OPERATION

Also Published As

Publication number Publication date
FR2385140B1 (en) 1979-07-27

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Legal Events

Date Code Title Description
ST Notification of lapse