FR2018771A1 - Lock for nuclear fuel elements - Google Patents

Lock for nuclear fuel elements

Info

Publication number
FR2018771A1
FR2018771A1 FR6932514A FR6932514A FR2018771A1 FR 2018771 A1 FR2018771 A1 FR 2018771A1 FR 6932514 A FR6932514 A FR 6932514A FR 6932514 A FR6932514 A FR 6932514A FR 2018771 A1 FR2018771 A1 FR 2018771A1
Authority
FR
France
Prior art keywords
fuel elements
lock
fuel
nuclear fuel
pull
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
FR6932514A
Other languages
French (fr)
Other versions
FR2018771B1 (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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of FR2018771A1 publication Critical patent/FR2018771A1/en
Application granted granted Critical
Publication of FR2018771B1 publication Critical patent/FR2018771B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/02—Details
    • G21C5/06—Means for locating or supporting fuel elements
    • 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
    • G21C3/12—Means forming part of the element for locating it within the reactor core
    • 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)
  • Transmission Devices (AREA)

Abstract

Long fuel elements are locked into the grid of a nuclear reactor to resist the buoyant forces of the coolant (such as liquid sodium) by ball latches engaging with downward extensions from the fuel rod assemblies, released by pull rods extending upwards through the centre of the fuel rods to release rings at their heads. In case of breakage of a pull rod the latch piston can be deformed by force exceeding the normal buoyancy force.
FR6932514A 1968-09-24 1969-09-24 Lock for nuclear fuel elements Granted FR2018771A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2158668 1968-09-24

Publications (2)

Publication Number Publication Date
FR2018771A1 true FR2018771A1 (en) 1970-06-26
FR2018771B1 FR2018771B1 (en) 1973-03-16

Family

ID=11183966

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6932514A Granted FR2018771A1 (en) 1968-09-24 1969-09-24 Lock for nuclear fuel elements

Country Status (5)

Country Link
BE (1) BE739234A (en)
DE (2) DE1948020A1 (en)
FR (1) FR2018771A1 (en)
LU (1) LU59500A1 (en)
NL (1) NL142808B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008489A1 (en) * 1980-03-05 1981-09-10 Kraftwerk Union AG, 4330 Mülheim Nuclear reactor fuel element lock - in lower lattice plate by axially movable control sleeve and detent

Also Published As

Publication number Publication date
DE1948020A1 (en) 1970-04-02
FR2018771B1 (en) 1973-03-16
NL142808B (en) 1974-07-15
DE6937194U (en) 1973-02-22
BE739234A (en) 1970-03-02
LU59500A1 (en) 1970-01-09
NL6914474A (en) 1970-03-26

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Legal Events

Date Code Title Description
ST Notification of lapse