JPH0383897U - - Google Patents
Info
- Publication number
- JPH0383897U JPH0383897U JP1989144284U JP14428489U JPH0383897U JP H0383897 U JPH0383897 U JP H0383897U JP 1989144284 U JP1989144284 U JP 1989144284U JP 14428489 U JP14428489 U JP 14428489U JP H0383897 U JPH0383897 U JP H0383897U
- Authority
- JP
- Japan
- Prior art keywords
- height
- upper nozzle
- fuel assembly
- pressurized water
- coil 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
- 239000000446 fuel Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000008602 contraction Effects 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図は本考案の加圧水型原子炉用燃料集合体
の要部である上部ノズルの実施例、第２図は従来
例の上部ノズル、第３図は加圧水型原子炉用燃料
集合体の説明図である。
１……燃料集合体、２……燃料棒、３……上部
ノズル、４……リーフスプリング、５……制御棒
案内シンブル、１１……クランプ部、１２……パ
ツド部、１３……コイルばねのカバー、ｈ……従
来の上部ノズルの高さ、ａ……従来の上部ノズル
の高さより短くする長さ。
Figure 1 shows an example of the upper nozzle which is the main part of the fuel assembly for pressurized water reactors of the present invention, Figure 2 shows the upper nozzle of a conventional example, and Figure 3 shows an explanation of the fuel assembly for pressurized water reactors. It is a diagram. DESCRIPTION OF SYMBOLS 1... Fuel assembly, 2... Fuel rod, 3... Upper nozzle, 4... Leaf spring, 5... Control rod guide thimble, 11... Clamp part, 12... Pad part, 13... Coil spring cover, h...Height of the conventional upper nozzle, a...Length shorter than the height of the conventional upper nozzle.
Claims (1)
ズルコーナー部のリーフスプリングを固定してい
るクランプ部を、対向する位置のパツド部より高
さを２〜５mm低くし、かつ該パツド部をコイルば
ねで置き換え、該コイルばねはその高さが従来の
上部ノズルの高さを越えないものとし、かつ少な
くともクランプ部の高さまでの縮み代を有する上
部ノズルを備えてなることを特徴とする加圧水型
原子炉用燃料集合体。 In a fuel assembly for a pressurized water reactor, the height of the clamp part that fixes the leaf spring at the upper nozzle corner is made 2 to 5 mm lower than the pad part at the opposing position, and the pad part is secured with a coil spring. A pressurized water nuclear reactor, characterized in that the coil spring is provided with an upper nozzle whose height does not exceed the height of a conventional upper nozzle, and which has a contraction margin up to at least the height of the clamp part. Fuel assembly for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989144284U JPH0383897U (en) | 1989-12-14 | 1989-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989144284U JPH0383897U (en) | 1989-12-14 | 1989-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0383897U true JPH0383897U (en) | 1991-08-26 |
Family
ID=31691004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989144284U Pending JPH0383897U (en) | 1989-12-14 | 1989-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0383897U (en) |
-
1989
- 1989-12-14 JP JP1989144284U patent/JPH0383897U/ja active Pending
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