FR2286474A1 - Internal plug assembly - for retaining fuel pastilles in position in a nuclear reactor fuel element - Google Patents

Internal plug assembly - for retaining fuel pastilles in position in a nuclear reactor fuel element

Info

Publication number
FR2286474A1
FR2286474A1 FR7432346A FR7432346A FR2286474A1 FR 2286474 A1 FR2286474 A1 FR 2286474A1 FR 7432346 A FR7432346 A FR 7432346A FR 7432346 A FR7432346 A FR 7432346A FR 2286474 A1 FR2286474 A1 FR 2286474A1
Authority
FR
France
Prior art keywords
fuel
pastilles
spring
nuclear reactor
plug
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
FR7432346A
Other languages
French (fr)
Other versions
FR2286474B1 (en
Inventor
Jacques Pajot
Jacques Rabellino
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 FR7432346A priority Critical patent/FR2286474A1/en
Publication of FR2286474A1 publication Critical patent/FR2286474A1/en
Application granted granted Critical
Publication of FR2286474B1 publication Critical patent/FR2286474B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/06—Casings; Jackets
    • G21C3/10—End closures ; Means for tight mounting therefor
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/16—Details of the construction within the casing
    • 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

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

Abstract

In a nuclear reactor fuel element, particularly for a liquid metal-cooled, fast neutron reactor, the plug for maintaining the column of fuel pastilles in the interior of the fuel element sheath, comprises an axially compressible spring co-operating at one end with teh pastilles and at the other end with a plug-type piece, having an insert bearing for the spring,a conical body surrounded by an elastic ring and a head at the end opposite that of the spring. Construction combines the advantages of spring pressure on the assembly fuel tablets i.e. facility for expansion, with the simplified procedure for welding-in the closure plug of the type of element using a split ring fuel tablet retainer.
FR7432346A 1974-09-25 1974-09-25 Internal plug assembly - for retaining fuel pastilles in position in a nuclear reactor fuel element Granted FR2286474A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7432346A FR2286474A1 (en) 1974-09-25 1974-09-25 Internal plug assembly - for retaining fuel pastilles in position in a nuclear reactor fuel element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7432346A FR2286474A1 (en) 1974-09-25 1974-09-25 Internal plug assembly - for retaining fuel pastilles in position in a nuclear reactor fuel element

Publications (2)

Publication Number Publication Date
FR2286474A1 true FR2286474A1 (en) 1976-04-23
FR2286474B1 FR2286474B1 (en) 1977-11-04

Family

ID=9143419

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432346A Granted FR2286474A1 (en) 1974-09-25 1974-09-25 Internal plug assembly - for retaining fuel pastilles in position in a nuclear reactor fuel element

Country Status (1)

Country Link
FR (1) FR2286474A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2342542A1 (en) * 1976-02-27 1977-09-23 Seiko Instr & Electronics NUCLEAR FUEL ELEMENT
US4672791A (en) * 1984-12-05 1987-06-16 Westinghouse Electric Corp. Apparatus for applying an end plug to an end of a fuel rod tube
US4679377A (en) * 1984-12-05 1987-07-14 Westinghouse Electric Corp. Apparatus for applying an end plug to an end of a fuel rod tube
US4921663A (en) * 1988-06-06 1990-05-01 Westinghouse Electric Corp. End plug weld for nuclear fuel rod

Non-Patent Citations (1)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2342542A1 (en) * 1976-02-27 1977-09-23 Seiko Instr & Electronics NUCLEAR FUEL ELEMENT
US4672791A (en) * 1984-12-05 1987-06-16 Westinghouse Electric Corp. Apparatus for applying an end plug to an end of a fuel rod tube
US4679377A (en) * 1984-12-05 1987-07-14 Westinghouse Electric Corp. Apparatus for applying an end plug to an end of a fuel rod tube
US4921663A (en) * 1988-06-06 1990-05-01 Westinghouse Electric Corp. End plug weld for nuclear fuel rod

Also Published As

Publication number Publication date
FR2286474B1 (en) 1977-11-04

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Legal Events

Date Code Title Description
ST Notification of lapse