JP2001518180A - 核燃料アセンブリ用冷媒攪拌グリッド - Google Patents
核燃料アセンブリ用冷媒攪拌グリッドInfo
- Publication number
- JP2001518180A JP2001518180A JP53513398A JP53513398A JP2001518180A JP 2001518180 A JP2001518180 A JP 2001518180A JP 53513398 A JP53513398 A JP 53513398A JP 53513398 A JP53513398 A JP 53513398A JP 2001518180 A JP2001518180 A JP 2001518180A
- Authority
- JP
- Japan
- Prior art keywords
- grid
- fuel assembly
- fuel
- assembly according
- stirring
- 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
- G21C3/322—Means to influence the coolant flow through or around the bundles
-
- 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)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.原子炉用の燃料アセンブリにおいて、 互いにまた燃料アセンブリの軸に対して実質的に平行に延長する複数の燃料ピ ンと、 前記燃料ピンと接触して前記燃料ピンを実質的に互いに平行になるように保持 してそれらの接触を防ぐ、少なくとも2つの互いに離間された構造要素としての グリッドと、 さらに、前記の少なくとも2つの構造要素としてのグリッドの中間に位置する 少なくとも1つの攪拌グリッドとを具備し、 前記攪拌グリッドは、前記燃料ピンと実質的に接触しないように位置決めされ て固着され、 前記攪拌グリッドは、使用時に前記燃料アセンブリ内を流通する冷媒の乱流を 促進する乱流誘発手段を有し、 前記攪拌グリッドは金属シートから形成され、前記攪拌グリッドが形成される 前記金属シートの面は、前記燃料アセンブリの軸を横切る面内にあることを特徴 とする燃料アセンブリ。 2.前記攪拌グリッドは、単一の材料シートから形成されることを特徴とする 請求項1に記載の燃料アセンブリ。 3.前記材料シートの厚みは、0.5mmから約1mmの範囲内にあることを 特徴とする請求項1または2に記載の燃料アセンブリ。 4.前記攪拌グリッドは、所定の寸法と形状の開口が配列されたフレーム構造 を有していることを特徴とする先行する請求項のいずれか1つに記載の燃料アセ ンブリ。 5.前記乱流誘発手段は、前記攪拌グリッドに取り付けられた羽根からなるこ とを特徴とする先行する請求項のいずれか1つに記載の燃料アセンブリ。 6.前記羽根は、前記攪拌グリッドと一体に形成されていることを特徴とする 請求項5に記載の燃料アセンブリ。 7.前記フレーム構造における各開口を包囲する部材の少なくとも一部は前記 シートの面の回りに捩じれて乱流を誘発する機能を向上させることを特徴とする 請求項4ないし6のいずれか1つに記載の燃料アセンブリ。 8.前記攪拌グリッドは、前記燃料ピンの外周リングにまで延長せずにそれら を包囲することを特徴とする先行する請求項のいずれか1つに記載の燃料アセン ブリ。 9.前記攪拌グリッドは、減速材としての制御棒が貫通する嵌め管によって、 前記燃料アセンブリ内の適切な位置に配置されてかつ保持されることを特徴とす る先行する請求項のいずれか1つに記載の燃料アセンブリ。 10.前記攪拌グリッドは、前記嵌め管に溶接またはカシメによって取り付けら れることを特徴とする請求項9に記載の燃料アセンブリ。 11.前記攪拌グリッドは、前記嵌め管の上方に嵌合する短管に最初は接合され 、次いで前記嵌め管に固定されることを特徴とする請求項9に記載の燃料アセン ブリ。 12.前記攪拌グリッドは、原子炉の作動中前記燃料ピンの最も高温の領域が位 置する、2つの隣接する前記構造要素としてのグリッド間に配置されることを特 徴とする先行する請求項のいずれか1つに記載の燃料アセンブリ。 13.前記攪拌グリッドはワイヤから形成され、前記ワイヤはそれらが互いに交 差する位置において溶接によって接合され、前記乱流誘発手段が前記ワイヤに取 り付けられることを特徴とする請求項1に記載の燃料アセンブリ。 14.請求項1ないし13のいずれか1つに記載の燃料アセンブリに用いられる 攪拌グリッド。 15.明細書および図面の図2および図3、または図5、または図6および図7 に実質的に記載された原子炉用燃料アセンブリ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9707690.5A GB9707690D0 (en) | 1997-04-16 | 1997-04-16 | Improvements in or relating to fuel assemblies |
GB9707690.5 | 1997-04-16 | ||
PCT/GB1998/001040 WO1998047153A1 (en) | 1997-04-16 | 1998-04-08 | Coolant mixing grid for nuclear fuel assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001518180A true JP2001518180A (ja) | 2001-10-09 |
JP4138015B2 JP4138015B2 (ja) | 2008-08-20 |
Family
ID=10810872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53513398A Expired - Lifetime JP4138015B2 (ja) | 1997-04-16 | 1998-04-08 | 核燃料アセンブリ用冷媒攪拌グリッド |
Country Status (8)
Country | Link |
---|---|
US (1) | US6272197B1 (ja) |
EP (1) | EP0976134A1 (ja) |
JP (1) | JP4138015B2 (ja) |
KR (1) | KR20010006508A (ja) |
CN (1) | CN1252157A (ja) |
AU (1) | AU6930498A (ja) |
GB (1) | GB9707690D0 (ja) |
WO (1) | WO1998047153A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107195335A (zh) * | 2017-05-22 | 2017-09-22 | 岭东核电有限公司 | 燃料组件及其装配方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050220261A1 (en) * | 2002-02-08 | 2005-10-06 | Framatome Anp Gmbh | Fuel assembly for a boiling water reactor |
DE102004014499B3 (de) * | 2004-03-25 | 2005-09-01 | Framatome Anp Gmbh | Brennelement für einen Druckwasserkernreaktor |
US20070206717A1 (en) * | 2006-03-02 | 2007-09-06 | Westinghouse Electric Company Llc | Multiple and variably-spaced intermediate flow mixing vane grids for fuel assembly |
RU2331119C1 (ru) * | 2006-12-22 | 2008-08-10 | Открытое акционерное общество "ТВЭЛ" | Тепловыделяющая сборка и вставной дистанционирующий элемент |
CN110534217B (zh) * | 2019-09-09 | 2023-08-18 | 中国船舶重工集团公司第七一九研究所 | 一种用于海洋核动力平台的乏燃料贮存格架 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3227621A (en) | 1960-05-11 | 1966-01-04 | Atomenergi Ab | Heterogeneous atomic reactor |
US3158549A (en) * | 1963-04-19 | 1964-11-24 | Wayne D Fowler | Fuel assembly for neutronic reactor |
DE2253017A1 (de) | 1971-12-30 | 1973-07-12 | Combustion Eng | Kernreaktor-brennstoffbaugruppe |
US4135972A (en) * | 1976-03-29 | 1979-01-23 | Combustion Engineering, Inc. | Nuclear reactor spacer assembly |
US4294660A (en) * | 1977-10-07 | 1981-10-13 | The Babcock & Wilcox Company | Spacer assembly retainer arrangement |
US4312706A (en) | 1980-03-17 | 1982-01-26 | The United States Of America As Represented By The United States Department Of Energy | Spacer grid assembly and locking mechanism |
US4726926A (en) * | 1986-03-12 | 1988-02-23 | Advanced Nuclear Fuels Corporation | Mixing grid |
FR2599177B1 (fr) * | 1986-05-20 | 1991-10-18 | Fragema Framatome & Cogema | Assemblage combustible a grilles anti-corrosion |
US4698204A (en) * | 1986-09-17 | 1987-10-06 | Westinghouse Electric Corp. | Intermediate flow mixing nonsupport grid for BWR fuel assembly |
DE8625662U1 (de) | 1986-09-25 | 1988-03-03 | Siemens AG, 1000 Berlin und 8000 München | Kernreaktorbrennelement |
US4879090A (en) * | 1987-08-24 | 1989-11-07 | Combustion Engineering, Inc. | Split vaned nuclear fuel assembly grid |
FR2633768B1 (fr) * | 1988-06-29 | 1991-04-05 | Framatome Sa | Grille melangeuse a ailettes pour assemblage combustible nucleaire |
US4951299A (en) * | 1989-01-11 | 1990-08-21 | Advanced Nuclear Fuels Corporation | Intermediate mixing grid |
DE4006264A1 (de) * | 1990-02-28 | 1991-08-29 | Siemens Ag | Siedewasserkernreaktor und kernreaktorbrennelement fuer diesen siedewasserkernreaktor |
FR2665292B1 (fr) * | 1990-07-24 | 1992-11-13 | Framatome Sa | Grille additionnelle pour assemblage combustible de reacteur nucleaire et assemblage en comportant application. |
FR2666678B1 (fr) * | 1990-07-24 | 1993-07-30 | Framatome Sa | Grille a ailettes de melange pour assemblage combustible nucleaire. |
FR2677163B1 (fr) * | 1991-05-30 | 1994-01-07 | Framatome | Grille thermohydraulique et assemblage combustible nucleaire en comportant application. |
US5267291A (en) * | 1992-02-21 | 1993-11-30 | General Electric Company | Spacer band with optimized fuel bundle to channel clearance in a boiling water reactor |
US5283821A (en) * | 1992-06-29 | 1994-02-01 | Combustion Engineering, Inc. | Split-cone spacer grid |
SE509202C2 (sv) * | 1993-09-20 | 1998-12-14 | Asea Atom Ab | Spridare och bränslepatron för en kokarreaktor |
US5440599A (en) * | 1994-02-03 | 1995-08-08 | Combustion Engineering, Inc. | Spacer grid with integral "side supported" flow directing vanes |
SE516267C2 (sv) * | 1994-06-13 | 2001-12-10 | Westinghouse Atom Ab | Styrning av kylflöde över ett stort blandningstvärsnitt i en kärnreaktor |
-
1997
- 1997-04-16 GB GBGB9707690.5A patent/GB9707690D0/en active Pending
-
1998
- 1998-04-08 EP EP98915015A patent/EP0976134A1/en not_active Withdrawn
- 1998-04-08 JP JP53513398A patent/JP4138015B2/ja not_active Expired - Lifetime
- 1998-04-08 KR KR1019997009598A patent/KR20010006508A/ko not_active Application Discontinuation
- 1998-04-08 AU AU69304/98A patent/AU6930498A/en not_active Abandoned
- 1998-04-08 US US09/402,703 patent/US6272197B1/en not_active Expired - Lifetime
- 1998-04-08 CN CN98804079A patent/CN1252157A/zh active Pending
- 1998-04-08 WO PCT/GB1998/001040 patent/WO1998047153A1/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107195335A (zh) * | 2017-05-22 | 2017-09-22 | 岭东核电有限公司 | 燃料组件及其装配方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4138015B2 (ja) | 2008-08-20 |
CN1252157A (zh) | 2000-05-03 |
EP0976134A1 (en) | 2000-02-02 |
KR20010006508A (ko) | 2001-01-26 |
US6272197B1 (en) | 2001-08-07 |
AU6930498A (en) | 1998-11-11 |
WO1998047153A1 (en) | 1998-10-22 |
GB9707690D0 (en) | 1997-06-04 |
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