JPS5926316Y2 - blade guide - Google Patents
blade guideInfo
- Publication number
- JPS5926316Y2 JPS5926316Y2 JP1979105205U JP10520579U JPS5926316Y2 JP S5926316 Y2 JPS5926316 Y2 JP S5926316Y2 JP 1979105205 U JP1979105205 U JP 1979105205U JP 10520579 U JP10520579 U JP 10520579U JP S5926316 Y2 JPS5926316 Y2 JP S5926316Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade guide
- guide
- fuel
- bundle
- blade
- 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
Links
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
【考案の詳細な説明】
本考案は沸騰水型原子炉の燃料装荷に係り、特に燃料装
荷作業に用いるプレブトガイドに関する。[Detailed Description of the Invention] The present invention relates to fuel loading for a boiling water nuclear reactor, and particularly to a prebut guide used for fuel loading work.
沸騰水型原子炉において炉心へ、燃料装荷する時は、制
御棒を挿入しておかなければならない。When loading fuel into the core of a boiling water reactor, control rods must be inserted.
この制御棒を引抜いた状態から挿入するための縦方向の
案内としてブレードガイドを必要とする。A blade guide is required as a longitudinal guide for inserting the control rod from the withdrawn state.
ブレードガイドは燃料集合体と同じ外形をしたガイド２
個をバンドルで結合して構成し、バンドルは掴み具によ
り運搬できるように取手の形を有している。The blade guide is a guide 2 with the same external shape as the fuel assembly.
The bundle has a handle shape so that it can be carried by a gripper.
従来のブレードガイドを燃料格子内から燃料貯蔵プール
間を水中移送する場合、燃料自動交換機の掴み具でブレ
ードガイドのバンドル部を固定して水中走行するため流
体抵抗によってブレードガイドのバンドル部が曲がると
いう問題があり、また燃料装荷作業は水中下における遠
隔作業のため作業性が非常に悪く、これに伴い作業者の
放射線被曝量が増大するという欠点があった。When a conventional blade guide is transferred underwater between a fuel grid and a fuel storage pool, the bundle part of the blade guide is fixed by the gripping tool of the automatic fuel exchanger and moved underwater, which causes the bundle part of the blade guide to bend due to fluid resistance. In addition, the fuel loading work was carried out remotely under water, resulting in very poor workability, and the worker's radiation exposure increased accordingly.
本考案は上述の事情を考慮してなされたもので、その目
的とするところは燃料交換時の作業性の向上を図ること
のできる流体抵抗軽減のブレードガイドを提供すること
にある。The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide a blade guide that reduces fluid resistance and can improve workability during fuel exchange.
以下図面を参照して本考案の一実施例を説明する。An embodiment of the present invention will be described below with reference to the drawings.
本考案のブレードガイドは第１図ないし第３図に示すよ
うに、燃料集合体と同じ外形のガイド１の下部にはタイ
プレート４が溶接されており、一対のガイド１，１は対
角線上にプレート３により溶接されている。As shown in Figures 1 to 3, the blade guide of the present invention has a tie plate 4 welded to the lower part of the guide 1, which has the same external shape as the fuel assembly, and the pair of guides 1, 1 are diagonally arranged. Welded by plate 3.
ガイド１，１の上部には対角線上にバンドル２が設けら
れている。A bundle 2 is provided diagonally above the guides 1,1.
本考案のブレードガイドのガイド１の側面には穴１０が
設けられている。A hole 10 is provided in the side surface of the guide 1 of the blade guide of the present invention.
本考案のブレードガイドではガイド１の側面に穴１０を
設けであるので、ブレードガイド移動時の流体抵抗が軽
減され、ブレードガイドのバンドルの曲り問題もなく安
全に水中を移動させることが可能である。In the blade guide of the present invention, the hole 10 is provided on the side of the guide 1, so the fluid resistance during movement of the blade guide is reduced, and the blade guide bundle can be moved safely underwater without the problem of bending. .
以上説明したように本考案によれば以下の如き効果を奏
する。As explained above, the present invention provides the following effects.
原子炉の定期点検時に燃料交換作業を行う場合、ブレー
ドガイドを燃料格子内から燃料貯蔵プール間を水中移送
時に、掴み具を使用してブレードガイドのバンドル部を
固定して水中走行すると流体抵抗によってブレードガイ
ドのバンドル部が曲がるという問題がなくなり原子炉の
安全な操業を確保することが出来る。When performing fuel replacement work during periodic inspections of a nuclear reactor, when transferring the blade guide underwater from the fuel grate to the fuel storage pool, if the bundle part of the blade guide is fixed using a gripper and the blade guide is moved underwater, it may be damaged due to fluid resistance. The problem of bending of the bundle portion of the blade guide is eliminated, and safe operation of the nuclear reactor can be ensured.
また、ブレードガイドのバンドル部の曲がり問題がなく
なり、燃料格子内に燃料集合体を装荷する時に発生する
チャンネルファスナーとブレードガイドのバンドルとの
干渉による損傷問題が少なくなる。Further, the problem of bending of the bundle portion of the blade guide is eliminated, and the problem of damage caused by interference between the channel fastener and the bundle of the blade guide, which occurs when loading the fuel assembly into the fuel grid, is reduced.
これによって燃料交換時の作業性の向上を図るとともに
原子力発電所の稼業率をも向上させることができる。This not only improves work efficiency during fuel exchange, but also improves the operating rate of the nuclear power plant.
以上説明したように、本考案によれば、燃料装荷作業時
の作業性が良くなり、作業員の放射線、被曝が低減する
。As explained above, according to the present invention, workability during fuel loading work is improved, and radiation exposure of workers is reduced.
第１図は本考案の一実施例を示す斜視図、第２図は本考
案の一実施例を示す平面図、第３図は本考案の一実施例
を示す正面図である。
１・・・・・・ガイド、２・・・・・・ハンドル、３・
・・・・・プレート、４・・・・・・下部タイプレート
、１０・・・・・・穴。FIG. 1 is a perspective view showing an embodiment of the invention, FIG. 2 is a plan view showing an embodiment of the invention, and FIG. 3 is a front view showing an embodiment of the invention. 1...Guide, 2...Handle, 3.
... Plate, 4 ... Lower tie plate, 10 ... Hole.
Claims (1)
し、ガイド下部にはタイプレートが溶接され、一対のガ
イドの上部にはバンドルを設けて成るブレードガイドに
おいて、ガイド側面に穴を設けたことを特徴とするブレ
ードガイド。A blade guide consisting of a pair of guides with the same external shape as the fuel assembly are welded together with plates, a tie plate is welded to the lower part of the guide, and a bundle is provided to the upper part of the pair of guides, and a hole is provided on the side of the guide. A blade guide featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979105205U JPS5926316Y2 (en) | 1979-08-01 | 1979-08-01 | blade guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979105205U JPS5926316Y2 (en) | 1979-08-01 | 1979-08-01 | blade guide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5623498U JPS5623498U (en) | 1981-03-03 |
| JPS5926316Y2 true JPS5926316Y2 (en) | 1984-07-31 |
Family
ID=29337866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979105205U Expired JPS5926316Y2 (en) | 1979-08-01 | 1979-08-01 | blade guide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926316Y2 (en) |
-
1979
- 1979-08-01 JP JP1979105205U patent/JPS5926316Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5623498U (en) | 1981-03-03 |
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