JPH0411494U - - Google Patents
Info
- Publication number
- JPH0411494U JPH0411494U JP1990051748U JP5174890U JPH0411494U JP H0411494 U JPH0411494 U JP H0411494U JP 1990051748 U JP1990051748 U JP 1990051748U JP 5174890 U JP5174890 U JP 5174890U JP H0411494 U JPH0411494 U JP H0411494U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel rods
- channel box
- fuel assembly
- rods
- 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
- 239000000446 fuel Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 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
- Supports For Pipes And Cables (AREA)
Description
第１図はこの考案の一実施例の断面図。第２図
イは従来の燃料集合体の一部切除した斜視図。同
図ロは燃料棒および水管の配置状態を示す平面図
。第３図は燃料棒の間を流れる冷却材の変化の状
態を示す説明図。
図中、１，１１……燃料棒、２，１２……水管
、３ａ，１３ａ……上部タイプレート、３ｂ，１
３ｂ……下部タイプレート、４，１４……スペー
サ、５，１５……チヤンネルボツクス、１５ａ…
…内表面。
FIG. 1 is a sectional view of one embodiment of this invention. FIG. 2A is a partially cutaway perspective view of a conventional fuel assembly. B is a plan view showing the arrangement of fuel rods and water pipes. FIG. 3 is an explanatory diagram showing how the coolant flowing between the fuel rods changes. In the figure, 1, 11... fuel rod, 2, 12... water pipe, 3a, 13a... upper tie plate, 3b, 1
3b... lower tie plate, 4, 14... spacer, 5, 15... channel box, 15a...
...inner surface.
Claims (1)
らの上下端は端栓を介して上部タイプレートおよ
び下部タイプレートに嵌挿支持し、軸方向の途中
は数段に配設された角枠状のスペーサにより相互
を一定間隔に保持し、上記燃料束の外側には角筒
状のチヤンネルボツクスを被嵌する燃料集合体に
おいて、上記チヤンネルボツクスの内表面の少な
くとも、燃料棒に対し冷却材が環状流をなして流
れる区域に相当する上側部分に鏡面仕上げを施し
てなる燃料集合体。 A large number of fuel rods and a small number of water pipes are arranged in a square array, and their upper and lower ends are inserted into and supported by the upper and lower tie plates through end plugs, and the middle of the axis is a square frame arranged in several stages. In a fuel assembly in which the fuel rods are held at a constant distance by a shaped spacer, and a rectangular cylindrical channel box is fitted on the outside of the fuel bundle, at least the inner surface of the channel box has coolant applied to the fuel rods. A fuel assembly whose upper part, which corresponds to the area where the flow forms an annular flow, has a mirror finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990051748U JPH0411494U (en) | 1990-05-19 | 1990-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990051748U JPH0411494U (en) | 1990-05-19 | 1990-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0411494U true JPH0411494U (en) | 1992-01-30 |
Family
ID=31571452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990051748U Pending JPH0411494U (en) | 1990-05-19 | 1990-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411494U (en) |
-
1990
- 1990-05-19 JP JP1990051748U patent/JPH0411494U/ja active Pending
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