JP4387695B2 - 原子炉の燃料集合体及びそのグリッド - Google Patents
原子炉の燃料集合体及びそのグリッド Download PDFInfo
- Publication number
- JP4387695B2 JP4387695B2 JP2003136120A JP2003136120A JP4387695B2 JP 4387695 B2 JP4387695 B2 JP 4387695B2 JP 2003136120 A JP2003136120 A JP 2003136120A JP 2003136120 A JP2003136120 A JP 2003136120A JP 4387695 B2 JP4387695 B2 JP 4387695B2
- Authority
- JP
- Japan
- Prior art keywords
- dimple
- spring
- strap
- straps
- grid
- 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.)
- Expired - Lifetime
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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
- G21C3/356—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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Springs (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Fuel Cell (AREA)
Description
セルの壁部を画定し、各ストラップ部材は突出するばねを有し、各ストラップ部材は突出するディンプルを有し、ばねとディンプルとは関連のストラップ部材に形成された1つの溝の少なくとも一部の互いに反対側にあって、ストラップ部材から互いに反対方向で外方に突出し、この溝は上流端縁部と下流端縁部との間のほぼ中間点にあり、一対のばねと一対のディンプルとが各セル内に延び、各セル内に延びる一対のばねのうちの一方と一対のディンプルのうちの一方とは互いに直接対向し、各セル内に延びる一対のばねのうちの他方と一対のディンプルのうちの他方とは互いに直接対向し、直接対向するばねとディンプルとは実質的に同一の高さを有する燃料集合体用グリッドを提供する。
Claims (6)
- 燃料棒とシンブル管のうち少なくとも一方を含む複数の円筒部材を支持する構造を備えた原子炉の燃料集合体用グリッドであって、
グリッドは格子状に相互連結されて複数のセルを画定する複数のストラップを有し、
各ストラップは上流端縁部を有し、
各ストラップは下流端縁部を有し、
上流端縁部と下流端縁部とは互いにほぼ反対側に位置し、
各ストラップは複数のストラップ部材を含み、
各ストラップ部材は少なくとも1つのセルの壁部を画定し、
各ストラップ部材は突出するばねを有し、
各ストラップ部材は突出するディンプルを有し、
ばねとディンプルとは関連のストラップ部材に形成された1つの溝の少なくとも一部の互いに反対側にあって、ストラップ部材から互いに反対方向で外方に突出し、
この溝は上流端縁部と下流端縁部との間のほぼ中間点にあり、
一対のばねと一対のディンプルとが各セル内に延び、
各セル内に延びる一対のばねのうちの一方と一対のディンプルのうちの一方とは互いに直接対向し、
各セル内に延びる一対のばねのうちの他方と一対のディンプルのうちの他方とは互いに直接対向し、
直接対向するばねとディンプルとは実質的に同一の高さを有する燃料集合体用グリッド。 - 各ストラップ部材はフレームを含み、
ばね及びディンプルはフレームから突出し、
各ばねはばねプレートと、フレームとばねプレートとの間を延びる一対のばね結合部を有し、
各ディンプルはディンプルプレートと、フレームとディンプルプレートとの間を延びる一対のディンプル結合部を有し、
ばね結合部はディンプル結合部より高い可撓性を有する請求項1の燃料集合体用グリッド。 - ばね結合部はディンプル結合部より小さい請求項2の燃料集合体用グリッド。
- 各ストラップ部材はフレームを含み、
ばね及びディンプルはフレームから突出し、
各ばねはばねプレートと、フレームとばねプレートとの間を延びる一対のばね結合部とを含み、
各ディンプルはディンプルプレートと、フレームとディンプルプレートとの間を延びる一対のディンプル結合部とを含み、
各ストラップはストラップ軸を有し、
実質的に全部のストラップのストラップ軸はほぼ仮想グリッド平面内にあり、
各ばね結合部はフレームとディンプルプレートとの間を延びるディンプル結合部軸を含み、
各ディンプル結合部はフレームとディンプルプレートとの間を延びるディンプル結合部軸を含み、
ばね結合部軸とディンプル結合部軸とは全て仮想グリッド平面にほぼ平行に向いている請求項1の燃料集合体用グリッド。 - 各ばねプレートはばね形状部を含むように成形され、
各ディンプルプレートはディンプル形状部を含むように成形され、
ばね形状部及びディンプル形状部は1つの円筒部材の外側表面にほぼ対応してそれと係合する構造である請求項2または4の燃料集合体用グリッド。 - 各ストラップはストラップ軸を含み、
ストラップ軸はほぼ仮想グリッド平面内にあり、
複数のストラップは複数の第1のストラップ、複数の第2のストラップ、複数の第3のストラップ及び複数の第4のストラップを含み、
第1及び第2のストラップはグリッド上において互い違いに且つ実質的に平行に配設され、
第3及び第4のストラップはグリッド上において互い違いに且つ実質的に平行に配設され、
第1及び第2のストラップは第3及び第4のストラップに対して実質的に垂直に配設され、
第1及び第3のストラップのばねは仮想グリッド平面より上方にあり、
第2及び第4のストラップのばねは仮想グリッド平面より下方にあり、
第1及び第3のストラップのディンプルは仮想グリッド平面より下方にあり、
第2及び第4のストラップのディンプルは仮想グリッド平面より上方にある請求項1の燃料集合体用グリッド。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/147,215 US6819733B2 (en) | 2002-05-15 | 2002-05-15 | Fuel assembly and associated grid for nuclear reactor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004037456A JP2004037456A (ja) | 2004-02-05 |
JP4387695B2 true JP4387695B2 (ja) | 2009-12-16 |
Family
ID=29418972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003136120A Expired - Lifetime JP4387695B2 (ja) | 2002-05-15 | 2003-05-14 | 原子炉の燃料集合体及びそのグリッド |
Country Status (9)
Country | Link |
---|---|
US (1) | US6819733B2 (ja) |
EP (2) | EP1372158B1 (ja) |
JP (1) | JP4387695B2 (ja) |
KR (1) | KR100965989B1 (ja) |
CN (1) | CN1271639C (ja) |
BR (1) | BR0301720A (ja) |
DE (1) | DE60332416D1 (ja) |
ES (1) | ES2342659T3 (ja) |
ZA (1) | ZA200303137B (ja) |
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-
2002
- 2002-05-15 US US10/147,215 patent/US6819733B2/en not_active Expired - Fee Related
-
2003
- 2003-04-23 ZA ZA200303137A patent/ZA200303137B/xx unknown
- 2003-04-30 EP EP03252732A patent/EP1372158B1/en not_active Expired - Fee Related
- 2003-04-30 EP EP10002353A patent/EP2221831A1/en not_active Withdrawn
- 2003-04-30 DE DE60332416T patent/DE60332416D1/de not_active Expired - Lifetime
- 2003-04-30 ES ES03252732T patent/ES2342659T3/es not_active Expired - Lifetime
- 2003-05-14 BR BR0301720-6A patent/BR0301720A/pt not_active IP Right Cessation
- 2003-05-14 KR KR1020030030491A patent/KR100965989B1/ko not_active IP Right Cessation
- 2003-05-14 JP JP2003136120A patent/JP4387695B2/ja not_active Expired - Lifetime
- 2003-05-15 CN CNB03136814XA patent/CN1271639C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1458653A (zh) | 2003-11-26 |
US20030215048A1 (en) | 2003-11-20 |
JP2004037456A (ja) | 2004-02-05 |
KR100965989B1 (ko) | 2010-06-24 |
EP2221831A1 (en) | 2010-08-25 |
CN1271639C (zh) | 2006-08-23 |
EP1372158A3 (en) | 2008-03-12 |
ES2342659T3 (es) | 2010-07-12 |
DE60332416D1 (de) | 2010-06-17 |
EP1372158B1 (en) | 2010-05-05 |
US6819733B2 (en) | 2004-11-16 |
ZA200303137B (en) | 2003-10-29 |
KR20030089461A (ko) | 2003-11-21 |
EP1372158A2 (en) | 2003-12-17 |
BR0301720A (pt) | 2004-03-09 |
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