ES396448A1 - Perfeccionamientos en elementos de fijacion de varillas de combustible para conjuntos de elementos combustibles de reactores nucleares. - Google Patents

Perfeccionamientos en elementos de fijacion de varillas de combustible para conjuntos de elementos combustibles de reactores nucleares.

Info

Publication number
ES396448A1
ES396448A1 ES396448A ES396448A ES396448A1 ES 396448 A1 ES396448 A1 ES 396448A1 ES 396448 A ES396448 A ES 396448A ES 396448 A ES396448 A ES 396448A ES 396448 A1 ES396448 A1 ES 396448A1
Authority
ES
Spain
Prior art keywords
pins
bottom end
nuclear reactor
extending
end fitting
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
Application number
ES396448A
Other languages
English (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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of ES396448A1 publication Critical patent/ES396448A1/es
Expired 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
    • 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
    • G21C3/3315—Upper 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)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Perfeccionamientos en elementos de fijación de varillas de combustible para conjuntos de elementos combustibles de reactores nucleares, caracterizados porque comprenden una pluralidad de varillas de combustible alargadas separadas transversalmente, cuyas varillas se extienden entre los adaptadores de los extremos superior e inferior del conjunto, teniendo un par adyacente de varillas de combustible sus extremos, montados a rosca en el adaptador de un extremo del conjunto y los otros extremos del par de varillas de combustible, atravesando aberturas en el segundo adaptador en el otro extremo del conjunto y que se adaptan por medos de elementos de retención roscados que se acoplan a los extremos de las varillas de combustibles con el segundo adaptador porque dicho elemento de fijación de las varillas de combustible presenta partes extremas, que acoplan cada uno de los elementos de retención roscados con el extremo de la varilla de combustible correspondiente, para evitar el desenroscamiento de los elementos de retención desde los extremos de las varillas de combustible, uniéndose las partes extremas del elemento de fijación de las varillas de combustible entre los elementos de retención roscados de las varillas de combustible, con lo que se evitan el desenroscamiento de las varillas de combustible desde el adaptador del primer extremo citado del conjunto por la acción del elemento de fijación de las varillas de combustible que evita la rotación de dichas varillas de combustible unas con relación a las otras.
ES396448A 1970-10-29 1971-10-08 Perfeccionamientos en elementos de fijacion de varillas de combustible para conjuntos de elementos combustibles de reactores nucleares. Expired ES396448A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5159570 1970-10-29

Publications (1)

Publication Number Publication Date
ES396448A1 true ES396448A1 (es) 1978-01-01

Family

ID=10460639

Family Applications (1)

Application Number Title Priority Date Filing Date
ES396448A Expired ES396448A1 (es) 1970-10-29 1971-10-08 Perfeccionamientos en elementos de fijacion de varillas de combustible para conjuntos de elementos combustibles de reactores nucleares.

Country Status (9)

Country Link
US (1) US3775249A (es)
BE (1) BE774782A (es)
DE (2) DE2153238A1 (es)
ES (1) ES396448A1 (es)
FR (1) FR2111923B1 (es)
GB (1) GB1324192A (es)
IT (1) IT942758B (es)
NL (1) NL170676C (es)
SE (1) SE369454B (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1003977A (en) * 1972-07-19 1977-01-18 Ralph A. Pugh Locking means for fuel bundles
CA999687A (en) * 1972-09-27 1976-11-09 John Pawliw Fibre reinforced fuel sheath
US3878042A (en) * 1973-09-12 1975-04-15 Gen Electric Spring and stop assembly for nuclear fuel bundle
US4038137A (en) * 1973-09-26 1977-07-26 Exxon Nuclear Company, Inc. Locking means for fuel bundles
US3928126A (en) * 1974-07-09 1975-12-23 Us Energy Fuel or irradiation subassembly
SE387766B (sv) * 1974-12-30 1976-09-13 Asea Atom Ab Brenslepatron med lett demonterbara komponenter
US4078967A (en) * 1976-07-26 1978-03-14 Combustion Engineering, Inc. Holddown device for nuclear fuel assembly
DE2653419A1 (de) * 1976-11-24 1978-06-01 Bayer Ag Verfahren zur umsetzung von helligkeitswerten in isochromaten
DE2747994A1 (de) * 1977-10-26 1979-05-03 Kraftwerk Union Ag Verdrehsicherung fuer zylinderkopfschrauben mit innenmehrkant und werkzeug zum plastischen verformen fuer eine solche verdrehsicherung
US4208249A (en) * 1977-12-15 1980-06-17 The Babcock & Wilcox Company Hydraulic seismic support for nuclear fuel assembly
US4348353A (en) * 1980-11-12 1982-09-07 The United States Of America As Represented By The United States Department Of Energy Nuclear reactor fuel assembly duct-tube-to-inlet-nozzle attachment system
US4420458A (en) * 1981-04-29 1983-12-13 General Electric Company Nuclear fuel assembly with coolant conducting tube
US4963318A (en) * 1989-04-24 1990-10-16 General Electric Company Spring lock washer for tie rod nuts
US5024806A (en) * 1989-09-21 1991-06-18 Westinghouse Electric Corp. Enhanced debris filter bottom nozzle for a nuclear fuel assembly
US5071617A (en) * 1989-12-11 1991-12-10 Combustion Engineering, Inc. Reduced flow resistance cast lower end fitting
US5319691A (en) * 1993-07-12 1994-06-07 General Electric Company Self locking nut for fuel assembly tie rods
US5481579A (en) * 1995-01-30 1996-01-02 General Electric Company Latching and lifting mechanism for a nuclear reactor fuel bundle
FR2864324B1 (fr) * 2003-12-22 2008-07-18 Framatome Anp Embout d'extremite pour assemblage combustible a nez d'orientation de l'ecoulement du fluide refrigerant et assemblage correspondant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US463650A (en) * 1891-11-24 Nut-lock
US620812A (en) * 1899-03-07 Nut-lock and rail-joint
US909268A (en) * 1908-05-21 1909-01-12 Joseph Windle Show-window fastener.
US3287231A (en) * 1957-01-23 1966-11-22 Westinghouse Electric Corp Fuel element assembly for a neutronic reactor
FR1519600A (fr) * 1966-12-12 1968-04-05 Commissariat Energie Atomique élément combustible nucléaire

Also Published As

Publication number Publication date
US3775249A (en) 1973-11-27
NL170676B (nl) 1982-07-01
BE774782A (fr) 1972-05-02
GB1324192A (en) 1973-07-18
FR2111923A1 (es) 1972-06-09
DE2153238A1 (de) 1972-06-29
NL170676C (nl) 1982-12-01
DE7140488U (de) 1972-05-18
SE369454B (es) 1974-08-26
FR2111923B1 (es) 1975-07-18
IT942758B (it) 1973-04-02
NL7114659A (es) 1972-05-03

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