FR2301070A1 - Retaining fuel rods in an array in fuel element or nuclear reactor - where the rods are locked both axially and transversely - Google Patents

Retaining fuel rods in an array in fuel element or nuclear reactor - where the rods are locked both axially and transversely

Info

Publication number
FR2301070A1
FR2301070A1 FR7504242A FR7504242A FR2301070A1 FR 2301070 A1 FR2301070 A1 FR 2301070A1 FR 7504242 A FR7504242 A FR 7504242A FR 7504242 A FR7504242 A FR 7504242A FR 2301070 A1 FR2301070 A1 FR 2301070A1
Authority
FR
France
Prior art keywords
fuel
rods
fuel rod
support member
transversely
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
FR7504242A
Other languages
French (fr)
Other versions
FR2301070B1 (en
Inventor
Pierre Boyer
Pierre Loriot
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 FR7504242A priority Critical patent/FR2301070A1/en
Publication of FR2301070A1 publication Critical patent/FR2301070A1/en
Application granted granted Critical
Publication of FR2301070B1 publication Critical patent/FR2301070B1/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
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/33—Supporting or hanging of elements in the bundle; Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles
    • G21C3/3305—Lower nozzle
    • 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)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

In a system for retaining fuel needles (rods) in an array of these in the casing of a fuel element or assembly for a nuclear reactor, particularly a liquid metal-cooled, fast neutron reactor, comprising in known manner (a) a support member coaxial with the base of the casing and mounted vertically (b) a series of parallel rails the lateral ends of which can be accepted in vertical slots provided in the support member, the rails being (i) capable of immobilisation by locking means in the sides of the support member and (ii) taking the form of plane sheets each of which can co-operate with a parallel plane face, machined on the closure plug for the lower end of each fuel rod, by means of projecting pins engaging oppositely situated apertures, (d) a wire wound helically round each fuel rod for spacing and supporting these, the further improvement whereby (c) the plane face of each lower end closure plug for a fuel rod extends in a plane offset laterally relatively to the vertical axis of that fuel rod and each rail is locked laterally between two parallel rows of fuel rods extending from one end of the rail to the other. Provides improved locking of the fuel rods both axially and transversely.
FR7504242A 1975-02-11 1975-02-11 Retaining fuel rods in an array in fuel element or nuclear reactor - where the rods are locked both axially and transversely Granted FR2301070A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7504242A FR2301070A1 (en) 1975-02-11 1975-02-11 Retaining fuel rods in an array in fuel element or nuclear reactor - where the rods are locked both axially and transversely

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7504242A FR2301070A1 (en) 1975-02-11 1975-02-11 Retaining fuel rods in an array in fuel element or nuclear reactor - where the rods are locked both axially and transversely

Publications (2)

Publication Number Publication Date
FR2301070A1 true FR2301070A1 (en) 1976-09-10
FR2301070B1 FR2301070B1 (en) 1978-08-18

Family

ID=9151067

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7504242A Granted FR2301070A1 (en) 1975-02-11 1975-02-11 Retaining fuel rods in an array in fuel element or nuclear reactor - where the rods are locked both axially and transversely

Country Status (1)

Country Link
FR (1) FR2301070A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390806A1 (en) * 1977-05-14 1978-12-08 Interatom BAR SUPPORT DEVICE FOR A FUEL ELEMENT FOR A NUCLEAR REACTOR
DE3141402A1 (en) * 1981-10-19 1983-04-28 Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach "BRACKET FOR CORE REACTOR FUEL ELEMENTS"
FR2606200A1 (en) * 1986-11-03 1988-05-06 Atomic Energy Authority Uk COMBUSTIBLE SUBASSEMBLY FOR NUCLEAR REACTOR

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2128842A1 (en) * 1971-03-11 1972-10-20 North American Rockwell

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2128842A1 (en) * 1971-03-11 1972-10-20 North American Rockwell

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390806A1 (en) * 1977-05-14 1978-12-08 Interatom BAR SUPPORT DEVICE FOR A FUEL ELEMENT FOR A NUCLEAR REACTOR
FR2390805A1 (en) * 1977-05-14 1978-12-08 Interatom BAR SUPPORT DEVICE FOR NUCLEAR REACTOR FUEL ELEMENT
DE3141402A1 (en) * 1981-10-19 1983-04-28 Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach "BRACKET FOR CORE REACTOR FUEL ELEMENTS"
FR2606200A1 (en) * 1986-11-03 1988-05-06 Atomic Energy Authority Uk COMBUSTIBLE SUBASSEMBLY FOR NUCLEAR REACTOR

Also Published As

Publication number Publication date
FR2301070B1 (en) 1978-08-18

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Legal Events

Date Code Title Description
ST Notification of lapse