JPH0221597U - - Google Patents
Info
- Publication number
- JPH0221597U JPH0221597U JP1988099744U JP9974488U JPH0221597U JP H0221597 U JPH0221597 U JP H0221597U JP 1988099744 U JP1988099744 U JP 1988099744U JP 9974488 U JP9974488 U JP 9974488U JP H0221597 U JPH0221597 U JP H0221597U
- Authority
- JP
- Japan
- Prior art keywords
- fuel assembly
- nuclear fuel
- converts
- lattice
- spring
- 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.)
- Pending
Links
- 239000003758 nuclear fuel Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
第１図は本考案による支持格子の第１実施例を
示す縦断面部分図、第２図は第１図のＡ―Ａ線に
沿つての断面図、第３図は第１図のＢ―Ｂ線に沿
つての断面図、第４図は本考案の第２実施例を示
す縦断面部分図、第５図は第４図のＣ―Ｃ線に沿
つての断面図、第６図は本考案の第３実施例を示
す縦断面部分図、第７図は第６図のＤ―Ｄ線に沿
つての断面図、第８図は核燃料集合体を示す概略
説明図、第９図は従来の支持格子の構成を示す部
分斜視図、第１０図は従来の支持格子を示す縦断
面部分図、第１１図は従来の支持格子を示す部分
平面図である。図中、
１……核燃料集合体、２……燃料棒、３，２０
，２０′，２０″……支持格子、７……ストラツ
プ、８……格子セル、９，２１，２１′，２１″
……スプリング、１１……ミキシングベーン、２
２……開口。
FIG. 1 is a vertical cross-sectional partial view showing a first embodiment of the support grid according to the present invention, FIG. 2 is a cross-sectional view taken along line A--A in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-- in FIG. 4 is a partial vertical cross-sectional view showing the second embodiment of the present invention, FIG. 5 is a sectional view taken along line C--C in FIG. 4, and FIG. 6 is a sectional view taken along line B. FIG. 7 is a cross-sectional view taken along line DD in FIG. 6, FIG. 8 is a schematic explanatory diagram showing a nuclear fuel assembly, and FIG. 9 is a partial longitudinal cross-sectional view showing the third embodiment of the present invention. FIG. 10 is a partial vertical cross-sectional view showing the conventional support grid, and FIG. 11 is a partial plan view showing the conventional support grid. In the figure, 1...Nuclear fuel assembly, 2...Fuel rod, 3,20
, 20', 20''... Support grid, 7... Strap, 8... Grid cell, 9, 21, 21', 21''
...Spring, 11 ...Mixing vane, 2
2...Opening.
Claims (1)
交して組み合わせ、燃料棒が挿通される四角形断
面の格子セルを複数画成する核燃料集合体用の支
持格子において、前記各格子セル内に挿通される
燃料棒を弾力的に支持するために前記ストラツプ
に一体成形されるスプリングが、核燃料集合体の
下部から上部に向かつて流れる冷却材を受けて該
冷却材の持つ流体力を該スプリングの燃料棒保持
力と同方向の力に転じる形状となつていることを
特徴とする核燃料集合体用の支持格子。 A support lattice for a nuclear fuel assembly in which a plurality of straps made of thin metal plates are assembled orthogonally to each other to define a plurality of lattice cells with a square cross section into which fuel rods are inserted, the fuel rods being inserted into each of said lattice cells. A spring integrally formed with the strap for elastically supporting the nuclear fuel assembly receives the coolant flowing from the bottom to the top of the nuclear fuel assembly, and converts the fluid force of the coolant into the fuel rod holding force of the spring. A support grid for a nuclear fuel assembly characterized by having a shape that converts forces in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988099744U JPH0221597U (en) | 1988-07-29 | 1988-07-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988099744U JPH0221597U (en) | 1988-07-29 | 1988-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221597U true JPH0221597U (en) | 1990-02-13 |
Family
ID=31327188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988099744U Pending JPH0221597U (en) | 1988-07-29 | 1988-07-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221597U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010515042A (en) * | 2006-12-26 | 2010-05-06 | アレヴァ エヌペ | Spacer grid with saddle shaped support and corresponding nuclear fuel assembly |
| JP2014519033A (en) * | 2011-05-20 | 2014-08-07 | アレバ・エヌペ | Strips for spacer grids of nuclear fuel assemblies |
| JP2014519031A (en) * | 2011-05-20 | 2014-08-07 | アレバ・エヌペ | Strip for spacer grid of nuclear fuel assembly |
-
1988
- 1988-07-29 JP JP1988099744U patent/JPH0221597U/ja active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010515042A (en) * | 2006-12-26 | 2010-05-06 | アレヴァ エヌペ | Spacer grid with saddle shaped support and corresponding nuclear fuel assembly |
| JP2014519033A (en) * | 2011-05-20 | 2014-08-07 | アレバ・エヌペ | Strips for spacer grids of nuclear fuel assemblies |
| JP2014519031A (en) * | 2011-05-20 | 2014-08-07 | アレバ・エヌペ | Strip for spacer grid of nuclear fuel assembly |
| US9443619B2 (en) | 2011-05-20 | 2016-09-13 | Areva Np | Strip for a nuclear fuel assembly spacer grid |
| JP2018028557A (en) * | 2011-05-20 | 2018-02-22 | アレバ・エヌペ | Strip for nuclear fuel assembly spacer grid |
| US9953730B2 (en) | 2011-05-20 | 2018-04-24 | Areva Np | Strip for a nuclear fuel assembly spacer grid |
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