FR2920586B1 - Grille d'espacement anti-usure par frottement avec ressort en forme de canoe - Google Patents

Grille d'espacement anti-usure par frottement avec ressort en forme de canoe

Info

Publication number
FR2920586B1
FR2920586B1 FR0800919A FR0800919A FR2920586B1 FR 2920586 B1 FR2920586 B1 FR 2920586B1 FR 0800919 A FR0800919 A FR 0800919A FR 0800919 A FR0800919 A FR 0800919A FR 2920586 B1 FR2920586 B1 FR 2920586B1
Authority
FR
France
Prior art keywords
canoe
friction
shaped spring
spacing grid
wear spacing
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
FR0800919A
Other languages
English (en)
Other versions
FR2920586A1 (fr
Inventor
Kyong Bo Eom
Kyu Tae Kim
Jung Min Suh
Shin Ho Lee
Nam Gyu Park
Joon Kyoo Park
Jin Sun Kim
Il Kyu Kim
Seong Ki Lee
Joon Hyung Choi
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.)
Korea Nuclear Fuel Co Ltd
Original Assignee
Korea Nuclear Fuel Co Ltd
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 Korea Nuclear Fuel Co Ltd filed Critical Korea Nuclear Fuel Co Ltd
Publication of FR2920586A1 publication Critical patent/FR2920586A1/fr
Application granted granted Critical
Publication of FR2920586B1 publication Critical patent/FR2920586B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G21C3/34—Spacer grids
    • G21C3/352—Spacer grids formed of assembled intersecting strips
    • 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
    • G21C3/34—Spacer grids
    • G21C3/356—Spacer grids being provided with fuel element supporting members
    • 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
    • G21C3/34—Spacer grids
    • 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
    • G21C3/34—Spacer grids
    • G21C3/356—Spacer grids being provided with fuel element supporting members
    • G21C3/3563—Supporting members formed only by deformations in the strips
    • 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)
  • Springs (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
FR0800919A 2007-08-27 2008-02-20 Grille d'espacement anti-usure par frottement avec ressort en forme de canoe Active FR2920586B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070086024A KR100932436B1 (ko) 2007-08-27 2007-08-27 연료봉 프레팅 마모방지를 위한 카누 모양의 스프링을 가진지지격자

Publications (2)

Publication Number Publication Date
FR2920586A1 FR2920586A1 (fr) 2009-03-06
FR2920586B1 true FR2920586B1 (fr) 2017-01-27

Family

ID=40343713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0800919A Active FR2920586B1 (fr) 2007-08-27 2008-02-20 Grille d'espacement anti-usure par frottement avec ressort en forme de canoe

Country Status (4)

Country Link
US (1) US7835484B2 (fr)
KR (1) KR100932436B1 (fr)
CN (1) CN101377964B (fr)
FR (1) FR2920586B1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE530864C2 (sv) * 2007-02-05 2008-09-30 Westinghouse Electric Sweden Förfarande för framställning av spridare för kärnreaktor
US9620250B2 (en) 2012-02-02 2017-04-11 Bwxt Nuclear Energy, Inc. Spacer grid
US10672521B2 (en) * 2012-03-23 2020-06-02 Global Nuclear Fuel—Americas, LLC Spacers with deflection-limited peripheral springs for nuclear fuel assemblies and methods of making the same
US9881701B2 (en) 2012-04-17 2018-01-30 Bwxt Mpower, Inc. Spacer grids with springs having improved robustness
KR101442088B1 (ko) 2012-08-06 2014-09-19 한전원자력연료 주식회사 고주파진동 감소를 위한 핵연료 집합체의 지지격자
KR20140019924A (ko) * 2012-08-06 2014-02-18 한전원자력연료 주식회사 유체유발 진동을 저감하기 위한 핵연료 집합체의 지지격자
CN103177776B (zh) * 2013-01-14 2016-08-03 上海核工程研究设计院 一种防燃料棒刮伤和振动磨蚀的燃料组件定位栅格
CN103187107B (zh) * 2013-01-14 2016-01-27 上海核工程研究设计院 一种具有增强型混合叶片的核燃料组件栅格
KR101711546B1 (ko) 2015-12-15 2017-03-03 한전원자력연료 주식회사 개선된 등방적 지지구조를 갖는 핵연료 집합체용 지지격자
CN107221358A (zh) * 2017-06-09 2017-09-29 中广核研究院有限公司 一种核燃料组件、定位格栅以及弹簧
CN107230501A (zh) * 2017-06-09 2017-10-03 中广核研究院有限公司 一种核燃料组件、定位格栅以及条带
KR102042980B1 (ko) * 2017-09-18 2019-12-02 연세대학교 산학협력단 핵 연료봉 지지격자
CN111540482A (zh) * 2020-05-14 2020-08-14 中国核动力研究设计院 一种具有双y形弹簧的单金属结构格架
CN111613351B (zh) * 2020-06-04 2022-05-20 中国核动力研究设计院 一种抗应力疲劳的压水堆燃料组件单金属定位栅格
CN113362973B (zh) * 2021-06-04 2022-02-22 中国核动力研究设计院 一种提高抗磨蚀性能并减小阻力的格架弹簧及定位格架
CN115831397A (zh) * 2022-10-28 2023-03-21 中广核研究院有限公司 核燃料组件chf的支撑格架及调整燃料棒弯曲尺寸的方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1923669A (en) * 1932-08-22 1933-08-22 Henry H Harrison Dental X-ray focusing instrument
FR2465297A1 (fr) * 1979-09-07 1981-03-20 Commissariat Energie Atomique Grille d'espacement pour elements combustibles de reacteurs nucleaires
FR2474229B1 (fr) * 1980-01-22 1986-08-22 Commissariat Energie Atomique Grille entretoise pour assemblage combustible de reacteur nucleaire
US4659542A (en) * 1984-10-03 1987-04-21 Westinghouse Electric Corp. Grid structure for nuclear fuel assembly
US4702881A (en) * 1985-04-02 1987-10-27 Westinghouse Electric Corp. Nuclear reactor spacer grid
JPS63273090A (ja) * 1987-04-30 1988-11-10 Mitsubishi Nuclear Fuel Co Ltd 支持格子
US4895698A (en) * 1988-03-14 1990-01-23 Westinghouse Electric Corp. Nuclear fuel rod grip with modified diagonal spring structures
US5307392A (en) * 1992-06-29 1994-04-26 Combustion Engineering, Inc. Energy dissipating outer strip for grid
US5331678A (en) * 1993-04-27 1994-07-19 Combustion Engineering, Inc. Spacer grid rod support system
US5444748A (en) * 1994-04-04 1995-08-22 Westinghouse Electric Corporation Grid structure for supporting fuel rods in a nuclear reactor
FR2736190B1 (fr) * 1995-06-29 1997-10-10 Framatome Sa Grille-entretoise d'un assemblage de combustible pour un reacteur nucleaire et assemblage de combustible
US6526116B1 (en) * 1997-07-02 2003-02-25 Westinghouse Electric Company Llc Nuclear fuel assembly with hydraulically balanced mixing vanes
US6144716A (en) * 1997-07-02 2000-11-07 Westinghouse Electric Corp. Nuclear fuel assembly grid with diagonal fuel retaining springs
FR2766003B1 (fr) * 1997-07-11 1999-12-03 Framatome Sa Grille pour assemblage combustible nucleaire et plaquette pour une telle grille
KR100318233B1 (ko) * 1997-12-22 2002-03-20 장인순 프레팅마모억제를위한h형스프링이부착된지지격자체
FR2802330B1 (fr) * 1999-12-13 2002-03-01 Franco Belge Combustibles Dispositif et procede de montage d'une grille-entretoise d'un assemblage de combustible pour un reacteur nucleaire
KR100444699B1 (ko) * 2001-12-26 2004-08-21 한국수력원자력 주식회사 입술형 다목적 핵연료 지지격자체
US6819733B2 (en) * 2002-05-15 2004-11-16 Westinghouse Electric Company Llc Fuel assembly and associated grid for nuclear reactor
US20070030943A1 (en) * 2005-08-08 2007-02-08 Global Nuclear Fuel - Americas, Llc Fuel spacer for a nuclear fuel bundle

Also Published As

Publication number Publication date
US20100098208A1 (en) 2010-04-22
KR20090021478A (ko) 2009-03-04
CN101377964B (zh) 2012-08-29
FR2920586A1 (fr) 2009-03-06
KR100932436B1 (ko) 2009-12-17
US7835484B2 (en) 2010-11-16
CN101377964A (zh) 2009-03-04

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