FR2394870A1 - Heat protection elements for metal cooled nuclear reactor - made up by superimposed layers of metal mesh on wall of cooling annulus - Google Patents

Heat protection elements for metal cooled nuclear reactor - made up by superimposed layers of metal mesh on wall of cooling annulus

Info

Publication number
FR2394870A1
FR2394870A1 FR7718031A FR7718031A FR2394870A1 FR 2394870 A1 FR2394870 A1 FR 2394870A1 FR 7718031 A FR7718031 A FR 7718031A FR 7718031 A FR7718031 A FR 7718031A FR 2394870 A1 FR2394870 A1 FR 2394870A1
Authority
FR
France
Prior art keywords
metal
liq
layers
elements
rim
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
FR7718031A
Other languages
French (fr)
Other versions
FR2394870B1 (en
Inventor
Yves Depierre
Jacques Figuet
Guy Lemercier
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7718031A priority Critical patent/FR2394870A1/en
Priority to US05/913,110 priority patent/US4298431A/en
Priority to DE19782825734 priority patent/DE2825734A1/en
Priority to GB7826736A priority patent/GB2000355B/en
Priority to JP7071678A priority patent/JPS547087A/en
Priority to BE188499A priority patent/BE868036A/en
Priority to IT68364/78A priority patent/IT1109137B/en
Priority to ES470708A priority patent/ES470708A1/en
Priority to NL7806350A priority patent/NL7806350A/en
Publication of FR2394870A1 publication Critical patent/FR2394870A1/en
Application granted granted Critical
Publication of FR2394870B1 publication Critical patent/FR2394870B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
    • G21C15/12—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from pressure vessel; from containment vessel
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C11/00—Shielding structurally associated with the reactor
    • G21C11/08—Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A bleed-off of the liq. metal coolant of a nuclear reactor flows up an annular ring section and over a rim before returning to the main body of liq. On the wall just below the edge of the rim are fixed, by gudgeon bolts, heat insulating elements through which the liq. metal flows to retard its velocity. These insulating elements are made up of panels forming superimposed layers of metal mesh or trellis work, the layers having equal or different thicknesses. The edges of the superimposed layers are offset laterally so that the edges are covered, and a constnat height and thickness of insulating elements are obtd. The panel sof the first and last layers are covered by overlapping thin metal sheets to prevent leakage to outside the elements. Layers of the elements are sepd. by thin metal sheets or by a grating thicker than th metal mesh. Over each panel in the last layer ther eis a metal covering plate used to compress the layers by menas of the gudgeon bolt. Used in fast breeder nuclear reactors cooled by a liq. metal, usually sodium. The process reduces the speed of fall of the liq. metal over the rim os that the gas of the inert blanket is not entrained in the liq. bulk.
FR7718031A 1977-06-13 1977-06-13 Heat protection elements for metal cooled nuclear reactor - made up by superimposed layers of metal mesh on wall of cooling annulus Granted FR2394870A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7718031A FR2394870A1 (en) 1977-06-13 1977-06-13 Heat protection elements for metal cooled nuclear reactor - made up by superimposed layers of metal mesh on wall of cooling annulus
US05/913,110 US4298431A (en) 1977-06-13 1978-06-06 Device for the thermal protection of an internal structure of a liquid metal cooled fast reactor
GB7826736A GB2000355B (en) 1977-06-13 1978-06-12 Apparatus for the thermal protection of a wall of a fast reactor
JP7071678A JPS547087A (en) 1977-06-13 1978-06-12 Device for preventing overheat of nuclear reactor cooled by liquid metal
DE19782825734 DE2825734A1 (en) 1977-06-13 1978-06-12 HEAT PROTECTION DEVICE FOR NUCLEAR REACTOR
BE188499A BE868036A (en) 1977-06-13 1978-06-12 THERMAL PROTECTION DEVICE FOR A NUCLEAR REACTOR STRUCTURE COOLED BY A LIQUID METAL
IT68364/78A IT1109137B (en) 1977-06-13 1978-06-12 THERMAL PROTECTION DEVICE FOR NUCLEAR REACTORS WITH LIQUID METAL COOLING
ES470708A ES470708A1 (en) 1977-06-13 1978-06-12 Device for the thermal protection of an internal structure of a liquid metal cooled fast reactor
NL7806350A NL7806350A (en) 1977-06-13 1978-06-12 DEVICE FOR THERMAL PROTECTION OF A NUCLEAR REACTOR CONSTRUCTION, WHICH IS COOLED BY A LIQUID METAL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7718031A FR2394870A1 (en) 1977-06-13 1977-06-13 Heat protection elements for metal cooled nuclear reactor - made up by superimposed layers of metal mesh on wall of cooling annulus

Publications (2)

Publication Number Publication Date
FR2394870A1 true FR2394870A1 (en) 1979-01-12
FR2394870B1 FR2394870B1 (en) 1980-03-07

Family

ID=9192023

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718031A Granted FR2394870A1 (en) 1977-06-13 1977-06-13 Heat protection elements for metal cooled nuclear reactor - made up by superimposed layers of metal mesh on wall of cooling annulus

Country Status (2)

Country Link
BE (1) BE868036A (en)
FR (1) FR2394870A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382643A1 (en) * 1989-02-10 1990-08-16 Commissariat A L'energie Atomique Thermal protection device for the upper support ring of a hanging vessel, especially in a fast neutron nuclear reactor
FR2762436A1 (en) * 1997-04-17 1998-10-23 Doryokuro Kakunenryo Cooling system for fast nuclear reactor shell

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382643A1 (en) * 1989-02-10 1990-08-16 Commissariat A L'energie Atomique Thermal protection device for the upper support ring of a hanging vessel, especially in a fast neutron nuclear reactor
FR2643189A1 (en) * 1989-02-10 1990-08-17 Commissariat Energie Atomique DEVICE FOR THERMAL PROTECTION OF THE UPPER RUBBER SUPPORTING A SUSPENDED TANK, ESPECIALLY IN A NUCLEAR REACTOR WITH FAST NEUTRALS
US4978497A (en) * 1989-02-10 1990-12-18 Commissariat A L'energie Atomique Apparatus for the thermal protection of the upper support ferrule of a suspended vessel, particularly in a fast neutron nuclear reactor
FR2762436A1 (en) * 1997-04-17 1998-10-23 Doryokuro Kakunenryo Cooling system for fast nuclear reactor shell

Also Published As

Publication number Publication date
FR2394870B1 (en) 1980-03-07
BE868036A (en) 1978-10-02

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Legal Events

Date Code Title Description
ST Notification of lapse