FR2261497A1 - Heat transfer control in a furnace or refrigerated vessel - using a fluidisable granular insulant - Google Patents

Heat transfer control in a furnace or refrigerated vessel - using a fluidisable granular insulant

Info

Publication number
FR2261497A1
FR2261497A1 FR7405509A FR7405509A FR2261497A1 FR 2261497 A1 FR2261497 A1 FR 2261497A1 FR 7405509 A FR7405509 A FR 7405509A FR 7405509 A FR7405509 A FR 7405509A FR 2261497 A1 FR2261497 A1 FR 2261497A1
Authority
FR
France
Prior art keywords
insulant
heat transfer
wall
furnace
granular
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
FR7405509A
Other languages
French (fr)
Other versions
FR2261497B1 (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 pour lEtude et la Realisation de Combustibles Atomiques SAS
Original Assignee
Compagnie pour lEtude et la Realisation de Combustibles Atomiques SAS
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 pour lEtude et la Realisation de Combustibles Atomiques SAS filed Critical Compagnie pour lEtude et la Realisation de Combustibles Atomiques SAS
Priority to FR7405509A priority Critical patent/FR2261497A1/en
Publication of FR2261497A1 publication Critical patent/FR2261497A1/en
Application granted granted Critical
Publication of FR2261497B1 publication Critical patent/FR2261497B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1809—Controlling processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D13/00—Heat-exchange apparatus using a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
    • B01J2208/00212—Plates; Jackets; Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00477—Controlling the temperature by thermal insulation means
    • B01J2208/00495—Controlling the temperature by thermal insulation means using insulating materials or refractories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F2013/005—Thermal joints
    • F28F2013/008—Variable conductance materials; Thermal switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2270/00—Thermal insulation; Thermal decoupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

In the control of heat transfer from a furnace or from a hot wall to a cold wall, or of the transfer of 'cold' from a refrigerated enclosure or a cold wall to a hot wall, between which a granular heat insulant is enclosed, increased heat transfer between the wall is achieved by fluidising the insulant, a decrease being achieved by bringing it to rest. Pref. the cold wall has means for auxiliary cooling, partic. circulating cooling water. Method enables 'dead' time in thermal processes to be reduced by reducing the cooling cycle time. Process may be used e.g. in furnaces for coating oxides of fissile metals with graphite.
FR7405509A 1974-02-19 1974-02-19 Heat transfer control in a furnace or refrigerated vessel - using a fluidisable granular insulant Granted FR2261497A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7405509A FR2261497A1 (en) 1974-02-19 1974-02-19 Heat transfer control in a furnace or refrigerated vessel - using a fluidisable granular insulant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7405509A FR2261497A1 (en) 1974-02-19 1974-02-19 Heat transfer control in a furnace or refrigerated vessel - using a fluidisable granular insulant

Publications (2)

Publication Number Publication Date
FR2261497A1 true FR2261497A1 (en) 1975-09-12
FR2261497B1 FR2261497B1 (en) 1977-09-30

Family

ID=9135093

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7405509A Granted FR2261497A1 (en) 1974-02-19 1974-02-19 Heat transfer control in a furnace or refrigerated vessel - using a fluidisable granular insulant

Country Status (1)

Country Link
FR (1) FR2261497A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035756A1 (en) * 1980-03-11 1981-09-16 Bergwerksverband GmbH Process and apparatus for decreasing heat and mass transfer in the immediate wall surroundings of fluidized bed reactors
FR2575546A1 (en) * 1984-12-28 1986-07-04 Inst Francais Du Petrole PERFECTED EXCHANGER AND METHOD FOR REALIZING THERMAL TRANSFER FROM SOLID PARTICLES
EP0304523A1 (en) * 1987-08-28 1989-03-01 Exxon Research And Engineering Company Apparatus and method for controlling the temperature in catalyst regeneration
EP0825405A1 (en) * 1996-08-12 1998-02-25 Buss Ag Method and arrangement for cooling and/or heating, in particular for machine or reactor housings

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035756A1 (en) * 1980-03-11 1981-09-16 Bergwerksverband GmbH Process and apparatus for decreasing heat and mass transfer in the immediate wall surroundings of fluidized bed reactors
EP0035756B1 (en) * 1980-03-11 1983-07-27 Bergwerksverband GmbH Process and apparatus for decreasing heat and mass transfer in the immediate wall surroundings of fluidized bed reactors
FR2575546A1 (en) * 1984-12-28 1986-07-04 Inst Francais Du Petrole PERFECTED EXCHANGER AND METHOD FOR REALIZING THERMAL TRANSFER FROM SOLID PARTICLES
EP0192906A1 (en) * 1984-12-28 1986-09-03 Institut Français du Pétrole Heat exchanger and process for instituting heat transfer from solid particles
EP0304523A1 (en) * 1987-08-28 1989-03-01 Exxon Research And Engineering Company Apparatus and method for controlling the temperature in catalyst regeneration
EP0825405A1 (en) * 1996-08-12 1998-02-25 Buss Ag Method and arrangement for cooling and/or heating, in particular for machine or reactor housings

Also Published As

Publication number Publication date
FR2261497B1 (en) 1977-09-30

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Legal Events

Date Code Title Description
ST Notification of lapse