FR3118270B1 - Installation for cleaning a fuel assembly and method for cleaning it - Google Patents

Installation for cleaning a fuel assembly and method for cleaning it Download PDF

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Publication number
FR3118270B1
FR3118270B1 FR2013494A FR2013494A FR3118270B1 FR 3118270 B1 FR3118270 B1 FR 3118270B1 FR 2013494 A FR2013494 A FR 2013494A FR 2013494 A FR2013494 A FR 2013494A FR 3118270 B1 FR3118270 B1 FR 3118270B1
Authority
FR
France
Prior art keywords
assembly
end piece
cleaning
enclosure
installation
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
FR2013494A
Other languages
French (fr)
Other versions
FR3118270A1 (en
Inventor
Fabien Grange
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to FR2013494A priority Critical patent/FR3118270B1/en
Publication of FR3118270A1 publication Critical patent/FR3118270A1/en
Application granted granted Critical
Publication of FR3118270B1 publication Critical patent/FR3118270B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G21C3/334—Assembling, maintenance or repair of the bundles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
    • 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)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention se rapporte notamment à une installation de nettoyage (IN) d’un assemblage combustible (1) qui comporte un embout supérieur (10) et un embout inférieur (11) entre lesquels s’étend une structure de réception de crayons de combustible (14), ledit embout inférieur (11) étant pourvu plusieurs pieds (15) pour l’appui dudit assemblage sur un support, caractérisée par le fait qu’elle comporte : - une enceinte (2) de réception de la partie basse dudit assemblage (1), qui comporte un fond (20) duquel s’élève sensiblement perpendiculairement une paroi périphérique (21) dont le sommet borde une ouverture d’accès (OU), cette ouverture (OU) étant dimensionnée de manière à permettre l’introduction d’au moins l’embout inférieur (11) dudit assemblage (1) ; - un ensemble de verrouillage (3) mobile dans une direction sensiblement parallèle audit fond (2), cet ensemble de verrouillage (3) étant mobile entre une position de repos dans laquelle il ne contrarie pas l’introduction dudit embout inférieur (11) dudit assemblage (1) et une position active de verrouillage dans laquelle il s’appuie sur la paroi périphérique dudit embout inférieur (11) et l’immobilise dans une position telle que lesdits pieds (15) sont positionnées à distance dudit fond (20) de l’enceinte (2) ; - un plateau (4) à surface supérieure (40) accidentée, qui s’étend parallèlement audit fond (20), qui est centré sur l’axe longitudinal (Y-Y’) de ladite enceinte (2) et qui est d’une part mobile en rotation autour dudit axe longitudinal (Y-Y’), et d’autre part mobile en translation pour régler son écartement vis-à-vis dudit fond (20). Figure pour l’abrégé : figure 4The invention relates in particular to an installation (IN) for cleaning a fuel assembly (1) which comprises an upper nozzle (10) and a lower nozzle (11) between which extends a structure for receiving fuel rods (14), said lower end piece (11) being provided with several feet (15) for supporting said assembly on a support, characterized in that it comprises: - an enclosure (2) for receiving the lower part of said assembly (1), which comprises a bottom (20) from which a peripheral wall (21) rises substantially perpendicularly, the top of which borders an access opening (OR), this opening (OR) being dimensioned so as to allow the introduction at least the lower end piece (11) of said assembly (1); - a locking assembly (3) movable in a direction substantially parallel to said bottom (2), this locking assembly (3) being movable between a rest position in which it does not interfere with the introduction of said lower end piece (11) of said assembly (1) and an active locking position in which it rests on the peripheral wall of said lower end piece (11) and immobilizes it in a position such that said feet (15) are positioned at a distance from said bottom (20) of the enclosure (2); - a plate (4) with an uneven upper surface (40), which extends parallel to said bottom (20), which is centered on the longitudinal axis (Y-Y') of said enclosure (2) and which is a mobile part in rotation around said longitudinal axis (Y-Y'), and on the other mobile part in translation to adjust its spacing vis-à-vis said bottom (20). Figure for abstract: Figure 4

FR2013494A 2020-12-17 2020-12-17 Installation for cleaning a fuel assembly and method for cleaning it Active FR3118270B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2013494A FR3118270B1 (en) 2020-12-17 2020-12-17 Installation for cleaning a fuel assembly and method for cleaning it

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2013494 2020-12-17
FR2013494A FR3118270B1 (en) 2020-12-17 2020-12-17 Installation for cleaning a fuel assembly and method for cleaning it

Publications (2)

Publication Number Publication Date
FR3118270A1 FR3118270A1 (en) 2022-06-24
FR3118270B1 true FR3118270B1 (en) 2023-04-14

Family

ID=76159459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2013494A Active FR3118270B1 (en) 2020-12-17 2020-12-17 Installation for cleaning a fuel assembly and method for cleaning it

Country Status (1)

Country Link
FR (1) FR3118270B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3142595A1 (en) 2022-11-29 2024-05-31 Electricite De France Method for assisting in the detection of migrating bodies within a fuel assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683109A (en) 1985-02-19 1987-07-28 Westinghouse Electric Corp. Debris removal system for a nuclear fuel assembly
FR2633769B1 (en) 1988-07-04 1991-05-17 Framatome Sa DEVICE FOR EXTRACTING FOREIGN PARTS OR PARTICLES FROM COMBUSTIBLE ASSEMBLIES OF A NUCLEAR REACTOR
DE69115307T2 (en) 1990-03-05 1996-06-13 Toshiba Kawasaki Kk Foreign matter removal device for a nuclear power plant fuel assembly
GB9520412D0 (en) * 1995-10-06 1995-12-06 British Nuclear Fuels Plc Fuel assembly inspection station:tilt rectification
FR3082988B1 (en) 2018-06-26 2021-09-10 Framatome Sa INTERVENTION DEVICE ON A NUCLEAR FUEL ASSEMBLY
CN211388080U (en) * 2019-11-06 2020-09-01 苏州奥可鑫金属修复技术有限公司 Grinding device for repairing large bearing

Also Published As

Publication number Publication date
FR3118270A1 (en) 2022-06-24

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