NO911818L - Fremgangsmaate for fremstilling av avstandsholder for brenselstaver samt slik avstandholder. - Google Patents
Fremgangsmaate for fremstilling av avstandsholder for brenselstaver samt slik avstandholder.Info
- Publication number
- NO911818L NO911818L NO91911818A NO911818A NO911818L NO 911818 L NO911818 L NO 911818L NO 91911818 A NO91911818 A NO 91911818A NO 911818 A NO911818 A NO 911818A NO 911818 L NO911818 L NO 911818L
- Authority
- NO
- Norway
- Prior art keywords
- grids
- spacer
- lattice
- fuel rods
- spaces
- Prior art date
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
- G21C3/3424—Fabrication of 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
- G21C3/352—Spacer grids formed of assembled intersecting 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)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Avstandsanordning og fremgangs- måte for dens fremstilling, for bruk i | en nukleær brenselbunt hvor flere bren- selstaver holdes parallelt i en kanal av flere avstandsholdere. Hver avstands- holder plasseres i brenselstaven i valgt høyde. Strimler er sveiset til rørdeler - i mellomrommene mellom brenselstavene, slik at det dannes et kontinuerlig av- standsgitter. øvre og nedre gittersek- sjoner er separate fra normalt innret- tede første og andre parallelle sett med gitterdeler, med et gitter for toppen av avstandsholderen og et gitter i bunnen. Rørdeler i mellomrommene forbinder git- rene. Rørdelenes øvre del har utsparin- ger for å motta de øvre gitre, og nedre del for å motta de nedre gitre. Gitrene festes, typisk ved sveising, til øvre og nedre deler slik at det dannes en av- standsanordning. Deretter bores over- flødig gittermateriale som krysser røre- nes indre for å eliminere nøytronabsor- berende materiale. Avstandsanordningen har mindre materiale enn kjente konti- nuerlige gitre og monteringen er forenk- let og den benyttes med forskjellig avstand mellom brenselstavene. I tillegg er såkalte virvelblad benyttet på noen steder i gitrene, i steden for rør- delene.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/522,022 US5032351A (en) | 1990-05-11 | 1990-05-11 | Modified cross point spacer apparatus and construction |
Publications (2)
Publication Number | Publication Date |
---|---|
NO911818D0 NO911818D0 (no) | 1991-05-10 |
NO911818L true NO911818L (no) | 1991-11-12 |
Family
ID=24079118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO91911818A NO911818L (no) | 1990-05-11 | 1991-05-10 | Fremgangsmaate for fremstilling av avstandsholder for brenselstaver samt slik avstandholder. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5032351A (no) |
EP (1) | EP0456055B1 (no) |
JP (1) | JP2524014B2 (no) |
DE (1) | DE69115345T2 (no) |
DK (1) | DK0456055T3 (no) |
ES (1) | ES2081385T3 (no) |
NO (1) | NO911818L (no) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5186891A (en) * | 1991-05-17 | 1993-02-16 | General Electric Company | Swirl vanes in inconel spacer |
US5229068A (en) * | 1991-05-17 | 1993-07-20 | General Electric Company | Optimized critical power in a fuel bundle with part length rods |
US5327470A (en) * | 1992-02-07 | 1994-07-05 | General Electric Company | Spacer with steam separator |
US5209897A (en) * | 1992-02-18 | 1993-05-11 | General Electric Company | BWR core assembly |
US5371768A (en) * | 1992-12-14 | 1994-12-06 | General Electric Company | Swirl type spacer for boiling water reactor fuel |
AU4921693A (en) * | 1993-03-08 | 1994-09-26 | Combustion Engineering Inc. | Mixing spacer grid for pwr and bwr applications |
US5361288A (en) * | 1993-08-16 | 1994-11-01 | General Electric Company | Spacer with integral zircaloy springs |
US5434898A (en) * | 1994-03-14 | 1995-07-18 | Siemens Power Corporation | Nuclear fuel assembly |
US5488644A (en) | 1994-07-13 | 1996-01-30 | General Electric Company | Spring assemblies for adjoining nuclear fuel rod containing ferrules and a spacer formed of the spring assemblies and ferrules |
US5519747A (en) | 1994-10-04 | 1996-05-21 | General Electric Company | Apparatus and methods for fabricating spacers for a nuclear fuel rod bundle |
US5546437A (en) | 1995-01-11 | 1996-08-13 | General Electric Company | Spacer for nuclear fuel rods |
US5566217A (en) | 1995-01-30 | 1996-10-15 | General Electric Company | Reduced height spacer for nuclear fuel rods |
US5572560A (en) * | 1995-06-29 | 1996-11-05 | Siemens Power Corporation | BWR fuel assembly having fuel rods with variable fuel rod pitches |
US5675621A (en) | 1995-08-17 | 1997-10-07 | General Electric Company | Reduced height flat spring spacer for nuclear fuel rods |
US5859887A (en) * | 1997-06-20 | 1999-01-12 | Westinghouse Electric Company | Nuclear fuel assembly support grid |
US6060016A (en) | 1998-11-11 | 2000-05-09 | Camco International, Inc. | Pneumatic isostatic forging of sintered compacts |
DE10250740A1 (de) * | 2002-10-31 | 2004-04-22 | Framatome Anp Gmbh | Brennelement für einen Siedewasserreaktor |
RU2290707C1 (ru) * | 2005-07-08 | 2006-12-27 | Открытое акционерное общество "ТВЭЛ" | Дистанционирующая решетка |
RU2331119C1 (ru) * | 2006-12-22 | 2008-08-10 | Открытое акционерное общество "ТВЭЛ" | Тепловыделяющая сборка и вставной дистанционирующий элемент |
KR100900917B1 (ko) * | 2007-07-23 | 2009-06-03 | 한국원자력연구원 | 교차점 지지체를 이용한 이중냉각 핵연료봉의 지지격자체 |
JP5038050B2 (ja) * | 2007-08-01 | 2012-10-03 | 白川 利久 | 原子炉の核燃料集合体におけるスペーサ |
US20090135989A1 (en) * | 2007-11-28 | 2009-05-28 | Ge-Hitachi Nuclear Energy Americas Llc | Segmented fuel rod bundle designs using fixed spacer plates |
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 |
CN101911211B (zh) | 2007-12-26 | 2014-02-12 | 钍能源股份有限公司 | 核反应堆(可选的)、用于核反应堆(可选的)的点火区-再生区子组件的燃料组件和用于燃料组件的燃料元件 |
US8483349B2 (en) * | 2008-07-29 | 2013-07-09 | Korea Atomic Energy Research Institute | Spacer grid for dual-cooling nuclear fuel rods using intersectional support structures |
EP3796334A3 (en) | 2008-12-25 | 2021-06-23 | Thorium Power, Inc. | A fuel assembly for a light water nuclear reactor |
US10170207B2 (en) | 2013-05-10 | 2019-01-01 | Thorium Power, Inc. | Fuel assembly |
WO2011143172A1 (en) | 2010-05-11 | 2011-11-17 | Thorium Power, Inc. | Fuel assembly with metal fuel alloy kernel and method of manufacturing thereof |
US10192644B2 (en) | 2010-05-11 | 2019-01-29 | Lightbridge Corporation | Fuel assembly |
EP2525364A1 (en) * | 2011-05-20 | 2012-11-21 | Areva NP | Nuclear fuel assembly having varying spacing between fuel rods |
CN102270511A (zh) * | 2011-07-18 | 2011-12-07 | 中国原子能科学研究院 | 一种压水堆双面冷却燃料棒的管形定位格架 |
CN110828000B (zh) * | 2019-10-18 | 2021-11-09 | 广东核电合营有限公司 | 防异物格栅、下管座组件及燃料组件 |
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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1094851A (en) * | 1964-01-16 | 1967-12-13 | Atomic Energy Authority Uk | Improvements in or relating to grids for nuclear fuel elements |
US3349004A (en) * | 1966-01-17 | 1967-10-24 | Gen Electric | Nuclear reactor fuel bundle |
FR1539837A (fr) * | 1967-07-31 | 1968-09-20 | Alcatel S A Soc | Procédé de suppression des vibrations dans les tubes et dispositif anti vibratoiremettant en oeuvre ce procédé |
US3966550A (en) * | 1971-03-18 | 1976-06-29 | Atlantic Richfield Company | Reactor fuel assemblies |
DE2203662A1 (de) * | 1972-01-27 | 1973-08-02 | Siemens Ag | Anlegeelement fuer in einem abstandshalter angeordnete brennstaebe von kernreaktoren |
US4059484A (en) * | 1975-05-02 | 1977-11-22 | Exxon Nuclear Company, Inc. | Hybrid nuclear fuel assembly with reduced linear heat generation rates |
US4125435A (en) * | 1977-02-25 | 1978-11-14 | The Babcock & Wilcox Company | Grid lattice with sliding strap |
US4708845A (en) * | 1985-10-18 | 1987-11-24 | Westinghouse Electric Corp. | BWR fuel assembly with improved spacer and fuel bundle design for enhanced thermal-hydraulic performance |
FR2616577B1 (fr) * | 1987-06-09 | 1991-02-15 | Framatome Sa | Grille-entretoise pour un assemblage combustible d'un reacteur nucleaire a eau legere |
EP0308701B1 (en) * | 1987-09-24 | 1992-11-25 | General Electric Company | Swirl vanes integral with spacer grid |
-
1990
- 1990-05-11 US US07/522,022 patent/US5032351A/en not_active Expired - Fee Related
-
1991
- 1991-04-26 DK DK91106808.8T patent/DK0456055T3/da active
- 1991-04-26 DE DE69115345T patent/DE69115345T2/de not_active Expired - Fee Related
- 1991-04-26 EP EP91106808A patent/EP0456055B1/en not_active Expired - Lifetime
- 1991-04-26 ES ES91106808T patent/ES2081385T3/es not_active Expired - Lifetime
- 1991-05-07 JP JP3130329A patent/JP2524014B2/ja not_active Expired - Lifetime
- 1991-05-10 NO NO91911818A patent/NO911818L/no unknown
Also Published As
Publication number | Publication date |
---|---|
JP2524014B2 (ja) | 1996-08-14 |
EP0456055A1 (en) | 1991-11-13 |
EP0456055B1 (en) | 1995-12-13 |
DK0456055T3 (da) | 1996-01-29 |
JPH04231895A (ja) | 1992-08-20 |
US5032351A (en) | 1991-07-16 |
NO911818D0 (no) | 1991-05-10 |
DE69115345T2 (de) | 1996-08-08 |
ES2081385T3 (es) | 1996-03-01 |
DE69115345D1 (de) | 1996-01-25 |
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