FR2801412B1 - Embout superieur d'un assemblage de combustible comportant des ressorts fixes par des vis immobilisees de maniere imperdable - Google Patents

Embout superieur d'un assemblage de combustible comportant des ressorts fixes par des vis immobilisees de maniere imperdable

Info

Publication number
FR2801412B1
FR2801412B1 FR9914740A FR9914740A FR2801412B1 FR 2801412 B1 FR2801412 B1 FR 2801412B1 FR 9914740 A FR9914740 A FR 9914740A FR 9914740 A FR9914740 A FR 9914740A FR 2801412 B1 FR2801412 B1 FR 2801412B1
Authority
FR
France
Prior art keywords
immobilized
screws
end piece
fuel assembly
springs fixed
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.)
Expired - Fee Related
Application number
FR9914740A
Other languages
English (en)
Other versions
FR2801412A1 (fr
Inventor
Michel Bonnamour
Angelo Beati
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.)
Areva NP SAS
Original Assignee
Framatome 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 Framatome SA filed Critical Framatome SA
Priority to FR9914740A priority Critical patent/FR2801412B1/fr
Publication of FR2801412A1 publication Critical patent/FR2801412A1/fr
Application granted granted Critical
Publication of FR2801412B1 publication Critical patent/FR2801412B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • 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
    • 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)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
FR9914740A 1999-11-23 1999-11-23 Embout superieur d'un assemblage de combustible comportant des ressorts fixes par des vis immobilisees de maniere imperdable Expired - Fee Related FR2801412B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9914740A FR2801412B1 (fr) 1999-11-23 1999-11-23 Embout superieur d'un assemblage de combustible comportant des ressorts fixes par des vis immobilisees de maniere imperdable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9914740A FR2801412B1 (fr) 1999-11-23 1999-11-23 Embout superieur d'un assemblage de combustible comportant des ressorts fixes par des vis immobilisees de maniere imperdable

Publications (2)

Publication Number Publication Date
FR2801412A1 FR2801412A1 (fr) 2001-05-25
FR2801412B1 true FR2801412B1 (fr) 2002-02-15

Family

ID=9552451

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9914740A Expired - Fee Related FR2801412B1 (fr) 1999-11-23 1999-11-23 Embout superieur d'un assemblage de combustible comportant des ressorts fixes par des vis immobilisees de maniere imperdable

Country Status (1)

Country Link
FR (1) FR2801412B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2993362A1 (fr) * 2014-09-02 2016-03-09 Caterpillar Energy Solutions GmbH Procédé et dispositif pour verrouiller des vis

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812895A (en) * 1970-02-17 1974-05-28 Dayton Progress Corp Fastener and retainer assembly
EP0194330A1 (fr) * 1985-03-13 1986-09-17 ACEC, Société Anonyme Procédé de remplacement des vis d'assemblage combustible irradié et dispositif appliquant ce procédé
US4683108A (en) * 1985-12-10 1987-07-28 Westinghouse Electric Corp. Locking screw apparatus and method for underwater remote replacement
US4711760A (en) * 1986-02-27 1987-12-08 Westinghouse Electric Corp. Nuclear reactor incorporating locking device for threaded bolt connections
YU153787A (en) * 1986-10-31 1990-04-30 Siemens Ag Mechanical connective element, protected against releasing
US5209895A (en) * 1990-05-29 1993-05-11 Combustion Engineering, Inc. Method of repairing a nuclear assembly

Also Published As

Publication number Publication date
FR2801412A1 (fr) 2001-05-25

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
CA Change of address
CD Change of name or company name
ST Notification of lapse

Effective date: 20140731