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WO2005071694A3 - Core of a nuclear reactor cooled by pressurized water and core fuel assembly - Google Patents

Core of a nuclear reactor cooled by pressurized water and core fuel assembly Download PDF

Info

Publication number
WO2005071694A3
WO2005071694A3 PCT/FR2004/003122 FR2004003122W WO2005071694A3 WO 2005071694 A3 WO2005071694 A3 WO 2005071694A3 FR 2004003122 W FR2004003122 W FR 2004003122W WO 2005071694 A3 WO2005071694 A3 WO 2005071694A3
Authority
WO
WIPO (PCT)
Prior art keywords
core
piece
fuel
fuel assemblies
fuel assembly
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.)
Ceased
Application number
PCT/FR2004/003122
Other languages
French (fr)
Other versions
WO2005071694A2 (en
Inventor
Angelo Beati
Dominique Hertz
Jacques Gauthier
Jean-Francois Rondepierre
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 ANP SAS
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 ANP SAS filed Critical Framatome ANP SAS
Publication of WO2005071694A2 publication Critical patent/WO2005071694A2/en
Publication of WO2005071694A3 publication Critical patent/WO2005071694A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/06—Casings; Jackets
    • G21C3/12—Means forming part of the element for locating it within the reactor core
    • 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
    • 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
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/02—Details
    • G21C5/06—Means for locating or supporting fuel elements
    • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The fuel assemblies (5) have a rigid, resistant structure (21) made up of a lower end-piece (16) and an upper end-piece (17) of the fuel assembly, said end-pieces being connected to each other by means of at least two longitudinal rigid connecting elements (22). The overall length of the framework of the fuel combustible is lower than the vertical distance between an upper surface of the lower plate of the core (7) and a lower surface of the upper surface of the core (8). The upper end-piece (17) of the fuel assemblies does not comprise a bladed bearing support. The lower end-piece (16) and upper end-piece (17) of each of the fuel assemblies comprise positioning openings wherein elastic clamping devices are mounted for the respective positioning pins (18,19) of the lower plate of the core (7) and the upper plate of the core (8). The fuel pencils (13) of the fuel assemblies are fixed on the lower end-piece (16). The framework (5a) of the fuel assemblies comprises the following elements inside the resistant structure (21): a plurality of guide tubes (15) which are slidingly mounted in at least one of the lower (16) and upper (17) end-pieces of the fuel assembly and a plurality of grid-cross members (14) for transversal maintenance of the pencils which are slidingly mounted in a longitudinal axial direction on the longitudinal connecting elements (22) of the resistant structure (21).
PCT/FR2004/003122 2003-12-22 2004-12-03 Core of a nuclear reactor cooled by pressurized water and core fuel assembly Ceased WO2005071694A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0315184A FR2864325B1 (en) 2003-12-22 2003-12-22 HEART OF A NUCLEAR REACTOR COOLED BY PRESSURIZED WATER AND HEART FUEL ASSEMBLY
FR0315184 2003-12-22

Publications (2)

Publication Number Publication Date
WO2005071694A2 WO2005071694A2 (en) 2005-08-04
WO2005071694A3 true WO2005071694A3 (en) 2005-09-22

Family

ID=34630460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/003122 Ceased WO2005071694A2 (en) 2003-12-22 2004-12-03 Core of a nuclear reactor cooled by pressurized water and core fuel assembly

Country Status (2)

Country Link
FR (1) FR2864325B1 (en)
WO (1) WO2005071694A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108257696B (en) * 2016-12-29 2023-08-29 中核建中核燃料元件有限公司 Device for compressing, assembling and measuring upper tube seat of fuel assembly
CN109935361B (en) * 2017-12-19 2024-05-31 中国原子能科学研究院 Square double-sided cooling annular fuel assembly
CN111477357B (en) * 2020-05-25 2025-01-03 中国原子能科学研究院 A fuel assembly with upper end limit
CN111489840B (en) * 2020-05-25 2025-01-03 中国原子能科学研究院 A detachable annular fuel test assembly
CN115274161A (en) * 2022-07-14 2022-11-01 中广核工程有限公司 Reactor core measuring instrument guide assembly
CN119626591A (en) * 2024-11-21 2025-03-14 中广核研究院有限公司 Nuclear fuel assembly upper socket

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853703A (en) * 1972-07-03 1974-12-10 Combustion Eng Fuel assembly hold-up device
US4104120A (en) * 1977-01-21 1978-08-01 Combustion Engineering, Inc. Static fuel holddown system
FR2519178A1 (en) * 1981-12-29 1983-07-01 Asea Atom Ab COMBUSTIBLE ELEMENT HARNESS WITH ABSORBENT BARS
FR2582137A1 (en) * 1985-02-05 1986-11-21 Westinghouse Electric Corp Fuel assembly employed in pressurised water nuclear reactors
US4828792A (en) * 1985-08-09 1989-05-09 Fragema Nuclear fuel assembly with holding structure and hold down device
US5167909A (en) * 1989-12-21 1992-12-01 Framatome Lower connector of a fuel assembly of a nuclear reactor cooled by light water
US5339342A (en) * 1992-01-09 1994-08-16 Siemens Aktiengesellschaft Fuel assembly for a boiling water reactor with a redundant support structure and a locked fuel assembly case
DE20105913U1 (en) * 2001-04-04 2001-07-19 Framatome ANP GmbH, 91058 Erlangen Nuclear reactor fuel assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853703A (en) * 1972-07-03 1974-12-10 Combustion Eng Fuel assembly hold-up device
US4104120A (en) * 1977-01-21 1978-08-01 Combustion Engineering, Inc. Static fuel holddown system
FR2519178A1 (en) * 1981-12-29 1983-07-01 Asea Atom Ab COMBUSTIBLE ELEMENT HARNESS WITH ABSORBENT BARS
FR2582137A1 (en) * 1985-02-05 1986-11-21 Westinghouse Electric Corp Fuel assembly employed in pressurised water nuclear reactors
US4828792A (en) * 1985-08-09 1989-05-09 Fragema Nuclear fuel assembly with holding structure and hold down device
US5167909A (en) * 1989-12-21 1992-12-01 Framatome Lower connector of a fuel assembly of a nuclear reactor cooled by light water
US5339342A (en) * 1992-01-09 1994-08-16 Siemens Aktiengesellschaft Fuel assembly for a boiling water reactor with a redundant support structure and a locked fuel assembly case
DE20105913U1 (en) * 2001-04-04 2001-07-19 Framatome ANP GmbH, 91058 Erlangen Nuclear reactor fuel assembly

Also Published As

Publication number Publication date
FR2864325A1 (en) 2005-06-24
WO2005071694A2 (en) 2005-08-04
FR2864325B1 (en) 2008-02-15

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