FR2409576A1 - Element elastique pour le serrage d'elements combustibles sur des reacteurs nucleaires - Google Patents
Element elastique pour le serrage d'elements combustibles sur des reacteurs nucleairesInfo
- Publication number
- FR2409576A1 FR2409576A1 FR7826891A FR7826891A FR2409576A1 FR 2409576 A1 FR2409576 A1 FR 2409576A1 FR 7826891 A FR7826891 A FR 7826891A FR 7826891 A FR7826891 A FR 7826891A FR 2409576 A1 FR2409576 A1 FR 2409576A1
- Authority
- FR
- France
- Prior art keywords
- tightening
- elastic element
- nuclear reactors
- combustible elements
- elements
- 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
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
- G21C3/331—Comprising hold-down means, e.g. springs
-
- 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)
- Springs (AREA)
Abstract
ELEMENT ELASTIQUE POUR LE SERRAGE D'ELEMENTS COMBUSTIBLES SUR DES REACTEURS NUCLEAIRES. POUR LE SERRAGE DES ELEMENTS COMBUSTIBLES AVEC LA PLAQUE DE SERRAGE INFERIEURE, IL EST PREVU DES ELEMENTS ELASTIQUES. CEUX-CI SE COMPOSENT D'UN ELEMENT6 FABRIQUE INDEPENDAMMENT DE L'ELEMENT COMBUSTIBLE, ET POUVANT ETRE INTRODUIT AXIALEMENT DANS CE DERNIER; CET ELEMENT EN FORME DE TIGE EST TELESCOPIQUE ET SOUMIS A L'ACTION D'UN RESSORT61. IL EST CONSTITUE PAR UNE DOUILLE SUPERIEURE6A, UNE VIS6B ET UNE DOUILLE INFERIEURE6C. ON OBTIENT AINSI UN ELEMENT ELASTIQUE SIMPLE A FABRIQUER ET QUI PEUT ETRE MONTE A LA PLACE D'UN ELEMENT ELASTIQUE PAR SIMPLE ELARGISSEMENT DE L'ALESAGE13 DE LA TETE1 DE L'ELEMENT COMBUSTIBLE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2742946A DE2742946C2 (de) | 1977-09-23 | 1977-09-23 | Federelement für die Niederhaltung von Kernreaktorbrennelementen |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2409576A1 true FR2409576A1 (fr) | 1979-06-15 |
FR2409576B1 FR2409576B1 (fr) | 1984-08-24 |
Family
ID=6019758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7826891A Granted FR2409576A1 (fr) | 1977-09-23 | 1978-09-20 | Element elastique pour le serrage d'elements combustibles sur des reacteurs nucleaires |
Country Status (6)
Country | Link |
---|---|
US (1) | US4278501A (fr) |
JP (1) | JPS5458193A (fr) |
BR (1) | BR7806249A (fr) |
DE (1) | DE2742946C2 (fr) |
ES (1) | ES473602A1 (fr) |
FR (1) | FR2409576A1 (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2520148B1 (fr) * | 1982-01-18 | 1986-01-10 | Commissariat Energie Atomique | Piece d'extremite d'assemblage combustible de reacteur nucleaire comportant un levier rigide rappele elastiquement |
FR2544538B1 (fr) * | 1983-04-13 | 1985-08-02 | Fragema Framatome & Cogema | Dispositif anti-envol pour reacteur nucleaire |
US4534933A (en) * | 1983-10-17 | 1985-08-13 | Westinghouse Electric Corp. | Nuclear reactor fuel assembly with improved top nozzle and hold-down means |
US4618472A (en) * | 1983-10-25 | 1986-10-21 | Westinghouse Electric Corp. | Nuclear reactor fuel assembly with fuel rod removal means |
US4678618A (en) * | 1984-08-20 | 1987-07-07 | Westinghouse Electric Corp. | Individual source positioning mechanism for a nuclear reactor fuel assembly |
US4670213A (en) * | 1985-02-12 | 1987-06-02 | Westinghouse Electric Corp. | Removable top nozzle subassembly for a reconstitutable nuclear fuel assembly |
DE3506584A1 (de) * | 1985-02-25 | 1986-08-28 | Kraftwerk Union AG, 4330 Mülheim | Einrichtung zum einsetzen von kernbrennstoff oder neutronenabsorberstoff enthaltenden staeben in einer vorgegebenen dichten packung in einen behaelter |
US4707326A (en) * | 1985-07-26 | 1987-11-17 | Westinghouse Electric Corp. | Arrangement and method for attaching and reattaching a top nozzle in a reconstitutable nuclear fuel assembly |
FR2589614B1 (fr) * | 1985-08-09 | 1988-01-08 | Fragema Framatome & Cogema | Assemblage combustible nucleaire a structure de maintien et dispositif anti-envol |
EP0277533A1 (fr) * | 1987-01-28 | 1988-08-10 | Siemens Aktiengesellschaft | Elément combustible pour réacteur nucléaire |
US4986960A (en) * | 1989-01-30 | 1991-01-22 | The Babcock & Wilcox Company | Two piece end fitting with hairpin springs |
US4986959A (en) * | 1989-05-17 | 1991-01-22 | Westinghouse Electric Corp. | Nuclear fuel assembly with expandable top nozzle subassembly |
US5272742A (en) * | 1992-07-20 | 1993-12-21 | B&W Fuel Company | Upper end fitting |
US5274685A (en) * | 1992-09-24 | 1993-12-28 | Siemens Power Corporation | Non-levitating PWR fuel assembly |
GB9408445D0 (en) * | 1994-04-28 | 1994-06-29 | British Nuclear Fuels Plc | Hold-down apparatus for nuclear fuel assemblies |
FR2725298B1 (fr) * | 1994-09-30 | 1996-12-20 | Framatome Sa | Coeur d'un reacteur nucleaire a eau sous pression et embout superieur d'un assemblage de combustible du coeur |
US6738447B1 (en) * | 2003-05-22 | 2004-05-18 | Westinghouse Electric Company Llc | High energy absorption top nozzle for a nuclear fuel assembly |
US8116423B2 (en) | 2007-12-26 | 2012-02-14 | Thorium Power, Inc. | Nuclear reactor (alternatives), fuel assembly of seed-blanket subassemblies for nuclear reactor (alternatives), and fuel element for fuel assembly |
EA015019B1 (ru) | 2007-12-26 | 2011-04-29 | Ториум Пауэр Инк. | Ядерный реактор (варианты), топливная сборка из запально-воспроизводящих модулей для ядерного реактора (варианты) и топливный элемент топливной сборки |
HUE043364T2 (hu) | 2008-12-25 | 2019-08-28 | Thorium Power Inc | Fûtõelem és egy fûtõelem elkészítési eljárása egy nukleáris reaktor egy fûtõelem-egysége számára |
US10170207B2 (en) | 2013-05-10 | 2019-01-01 | Thorium Power, Inc. | Fuel assembly |
US10192644B2 (en) | 2010-05-11 | 2019-01-29 | Lightbridge Corporation | Fuel assembly |
WO2011143172A1 (fr) | 2010-05-11 | 2011-11-17 | Thorium Power, Inc. | Assemblage de combustible à noyau d'alliage de combustibles métalliques et son procédé de fabrication |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1334361A (fr) * | 1962-05-30 | 1963-08-09 | Commissariat Energie Atomique | Mode d'assemblage de barreaux de combustible pour réacteur nucléaire |
US3205144A (en) * | 1961-08-25 | 1965-09-07 | Babcock & Wilcox Co | Reactor fuel hold-down assemblies |
FR2164679A1 (fr) * | 1971-12-21 | 1973-08-03 | Westinghouse Electric Corp | |
FR2237276A1 (fr) * | 1972-07-03 | 1975-02-07 | Combustion Eng | |
FR2240502A1 (fr) * | 1973-08-06 | 1975-03-07 | Exxon Nuclear Co Inc |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3954560A (en) * | 1970-05-06 | 1976-05-04 | Commissariat A L'energie Atomique | Nuclear fuel assembly |
US3770583A (en) * | 1971-05-20 | 1973-11-06 | Combustion Eng | Fuel assembly hold-down device |
US3801734A (en) * | 1971-12-23 | 1974-04-02 | Combustion Eng | Reactor-fuel assembly hold down |
US4038137A (en) * | 1973-09-26 | 1977-07-26 | Exxon Nuclear Company, Inc. | Locking means for fuel bundles |
GB1459562A (en) * | 1974-03-07 | 1976-12-22 | Atomic Energy Authority Uk | Nuclear reactor fuel elements |
US3971575A (en) * | 1974-11-29 | 1976-07-27 | Combustion Engineering, Inc. | Releasable locking device |
SE387766B (sv) * | 1974-12-30 | 1976-09-13 | Asea Atom Ab | Brenslepatron med lett demonterbara komponenter |
FR2326764A1 (fr) * | 1975-10-02 | 1977-04-29 | Commissariat Energie Atomique | Structure de coeur pour reacteur nucleaire |
US4064004A (en) * | 1976-02-23 | 1977-12-20 | Exxon Nuclear Company, Inc. | Assembly mechanism for nuclear fuel bundles |
US4078967A (en) * | 1976-07-26 | 1978-03-14 | Combustion Engineering, Inc. | Holddown device for nuclear fuel assembly |
FR2365186A1 (fr) * | 1976-09-21 | 1978-04-14 | Commissariat Energie Atomique | Dispositif de mesure de flux neutronique pour reacteur nucleaire |
US4155808A (en) * | 1976-11-15 | 1979-05-22 | The Babcock & Wilcox Company | Nuclear fuel rod inspection structure |
US4104120A (en) * | 1977-01-21 | 1978-08-01 | Combustion Engineering, Inc. | Static fuel holddown system |
US4164443A (en) * | 1977-05-04 | 1979-08-14 | Combustion Engineering, Inc. | Hydraulic fuel hold down |
-
1977
- 1977-09-23 DE DE2742946A patent/DE2742946C2/de not_active Expired
-
1978
- 1978-09-20 FR FR7826891A patent/FR2409576A1/fr active Granted
- 1978-09-22 JP JP11739078A patent/JPS5458193A/ja active Granted
- 1978-09-22 US US05/944,707 patent/US4278501A/en not_active Expired - Lifetime
- 1978-09-22 BR BR7806249A patent/BR7806249A/pt unknown
- 1978-09-22 ES ES473602A patent/ES473602A1/es not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3205144A (en) * | 1961-08-25 | 1965-09-07 | Babcock & Wilcox Co | Reactor fuel hold-down assemblies |
FR1334361A (fr) * | 1962-05-30 | 1963-08-09 | Commissariat Energie Atomique | Mode d'assemblage de barreaux de combustible pour réacteur nucléaire |
FR2164679A1 (fr) * | 1971-12-21 | 1973-08-03 | Westinghouse Electric Corp | |
FR2237276A1 (fr) * | 1972-07-03 | 1975-02-07 | Combustion Eng | |
FR2240502A1 (fr) * | 1973-08-06 | 1975-03-07 | Exxon Nuclear Co Inc |
Also Published As
Publication number | Publication date |
---|---|
JPS5458193A (en) | 1979-05-10 |
DE2742946C2 (de) | 1979-07-26 |
ES473602A1 (es) | 1979-06-01 |
JPS6245511B2 (fr) | 1987-09-28 |
FR2409576B1 (fr) | 1984-08-24 |
BR7806249A (pt) | 1979-05-15 |
DE2742946B1 (de) | 1978-10-12 |
US4278501A (en) | 1981-07-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |