FR3085531B1 - Structure etanche pour assemblage de maitrise de la reactivite de reacteur nucleaire a neutrons rapides - Google Patents

Structure etanche pour assemblage de maitrise de la reactivite de reacteur nucleaire a neutrons rapides Download PDF

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Publication number
FR3085531B1
FR3085531B1 FR1857969A FR1857969A FR3085531B1 FR 3085531 B1 FR3085531 B1 FR 3085531B1 FR 1857969 A FR1857969 A FR 1857969A FR 1857969 A FR1857969 A FR 1857969A FR 3085531 B1 FR3085531 B1 FR 3085531B1
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FR
France
Prior art keywords
assembly
reactivity
nuclear reactor
control
waterproof structure
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.)
Active
Application number
FR1857969A
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English (en)
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FR3085531A1 (fr
Inventor
Denis Lorenzo
Jean-Michel Escleine
Benoit Perrin
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
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Application filed by Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR1857969A priority Critical patent/FR3085531B1/fr
Publication of FR3085531A1 publication Critical patent/FR3085531A1/fr
Application granted granted Critical
Publication of FR3085531B1 publication Critical patent/FR3085531B1/fr
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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/10—Construction of control elements
    • G21C7/103—Control assemblies containing one or more absorbants as well as other elements, e.g. fuel or moderator elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/02—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
    • G21C9/027—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency by fast movement of a solid, e.g. pebbles
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

L'invention concerne un assemblage de maîtrise de la réactivité nucléaire (1, l'), destiné à être inséré dans un réacteur nucléaire, comprenant : - un boîtier d'assemblage (2), - une barre de contrôle (5), logée et maintenue dans le boîtier d'assemblage, la barre de contrôle pouvant être libérée et comportant : • un faisceau d'aiguilles absorbantes (52), • une coque étanche (56, 53', 56'), • une pièce métallique (55, 55') étanche et réalisée sans liaison mécanique, contenue à l'intérieur de la coque étanche avec un jeu réduit et non nul.
FR1857969A 2018-09-05 2018-09-05 Structure etanche pour assemblage de maitrise de la reactivite de reacteur nucleaire a neutrons rapides Active FR3085531B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1857969A FR3085531B1 (fr) 2018-09-05 2018-09-05 Structure etanche pour assemblage de maitrise de la reactivite de reacteur nucleaire a neutrons rapides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1857969 2018-09-05
FR1857969A FR3085531B1 (fr) 2018-09-05 2018-09-05 Structure etanche pour assemblage de maitrise de la reactivite de reacteur nucleaire a neutrons rapides

Publications (2)

Publication Number Publication Date
FR3085531A1 FR3085531A1 (fr) 2020-03-06
FR3085531B1 true FR3085531B1 (fr) 2020-10-30

Family

ID=65201288

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1857969A Active FR3085531B1 (fr) 2018-09-05 2018-09-05 Structure etanche pour assemblage de maitrise de la reactivite de reacteur nucleaire a neutrons rapides

Country Status (1)

Country Link
FR (1) FR3085531B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE629115A (fr) * 1962-03-02
US4769208A (en) * 1982-03-23 1988-09-06 The United States Of America As Represented By The United States Department Of Energy Automatic safety rod for reactors
FR3044156B1 (fr) 2015-11-23 2017-11-10 Commissariat Energie Atomique Dispositif de surete a declenchement passif pour reacteur nucleaire sur une baisse anormale du debit primaire
FR3044155B1 (fr) 2015-11-23 2017-11-10 Commissariat Energie Atomique Dispositif de surete a declenchement passif pour reacteur nucleaire sur une baisse anormale du debit primaire

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Publication number Publication date
FR3085531A1 (fr) 2020-03-06

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