JPS5855796A - Spent fuel storage pool - Google Patents
Spent fuel storage poolInfo
- Publication number
- JPS5855796A JPS5855796A JP56153608A JP15360881A JPS5855796A JP S5855796 A JPS5855796 A JP S5855796A JP 56153608 A JP56153608 A JP 56153608A JP 15360881 A JP15360881 A JP 15360881A JP S5855796 A JPS5855796 A JP S5855796A
- Authority
- JP
- Japan
- Prior art keywords
- fuel storage
- spent fuel
- storage pool
- pool
- steel plate
- 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
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
- Cosmetics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、原子力発電プラントの使用済燃料貯蔵プール
に係り、特に地震時に加わる加重の低減に有効な装置を
、使用済燃料貯蔵プールに設置したものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spent fuel storage pool of a nuclear power plant, and in particular, a device that is effective in reducing the load applied during an earthquake is installed in the spent fuel storage pool.
第１図に示すように、従来の原子力発電プラントに設置
されている使用済燃料貯蔵プール１内には、原子力発電
所で使用された使用済燃料が、第２図で示す貯蔵ラック
２に収納された形で貯蔵されている。この使用済燃料貯
蔵プール１が水平方向の地震力を受けた際、プール水３
がスロッシングを起こし、使用済燃料貯蔵プール１及び
燃料貯蔵ラック２に衝撃的荷重を与える。また、使用済
燃料貯蔵プールｌ内のプールＸ３は、使用済燃料からの
熱の除去及び放射能の低減をはかるため、常に満水状態
にされているため、強度な地震に踏舞われると、スロッ
シングによりプール水３がプール運転床４に大量にあふ
れ出る恐れがあった。As shown in Fig. 1, spent fuel used in the nuclear power plant is stored in a storage rack 2 shown in Fig. 2 in a spent fuel storage pool 1 installed in a conventional nuclear power plant. It is stored in a protected form. When this spent fuel storage pool 1 receives a horizontal seismic force, the pool water 3
causes sloshing and applies an impact load to the spent fuel storage pool 1 and fuel storage rack 2. In addition, pool X3 in spent fuel storage pool L is always kept full of water in order to remove heat from spent fuel and reduce radioactivity, so if it is struck by a strong earthquake, sloshing may occur. As a result, there was a risk that a large amount of pool water 3 would overflow onto the pool operating floor 4.
本発明は、使用済燃料貯蔵プールが水平方向の地震力を
受けた際、１スロツ７／グを引き起こし、使用済燃料貯
蔵プール本体及び内部の燃料ラックに与える衝撃的荷重
又はプールからあふれ出るプール水をできるだけ低減さ
せるような装置を提供することを目的とする。The present invention is designed to reduce the impact load caused by 1 slot 7/g when a spent fuel storage pool is subjected to a horizontal seismic force, resulting in an impact load being applied to the spent fuel storage pool body and the internal fuel rack, or a pool overflowing from the pool. The purpose is to provide a device that reduces water as much as possible.
上記スロッシングを低減させるためには、水の水平方向
の移動を拘束する事が有効である。しかし、使用済燃料
貯蔵プールを数個に分離させてしまうと、定期検査時の
燃料交換作業に困難をきたす恐れがあるため取外し可能
であることが必要である。In order to reduce the above-mentioned sloshing, it is effective to restrain the movement of water in the horizontal direction. However, if the spent fuel storage pool is separated into several parts, it may be difficult to replace the fuel during periodic inspections, so it is necessary that the spent fuel storage pool be removable.
以下、第３図、第４図、第５図により本発明の詳細な説
明する。Hereinafter, the present invention will be explained in detail with reference to FIGS. 3, 4, and 5.
第３図に示すように、通常の使用済燃料貯蔵プール１に
鋼製のプレート５を設置する。この時、使用済燃料貯蔵
プールｌを格子型に分割するようにする。又、鋼製グレ
ート５の交点は図４に示すように、鋼製プレート５と鋼
製プレート５′から成り噛み合う構造とする。As shown in FIG. 3, a steel plate 5 is installed in an ordinary spent fuel storage pool 1. At this time, the spent fuel storage pool l is divided into grid shapes. Further, as shown in FIG. 4, the intersection point of the steel grates 5 is made up of a steel plate 5 and a steel plate 5', which interlock with each other.
さらに、原子力発電プラントでは、定期検査時に使用済
となった燃料を使用済燃料貯蔵プール１に収納する作業
があるため、鋼製プレート５は取外し可能であることが
必要となる。プール本体１と鋼製プレート５の取付部を
第５図の如くプール本体１にボルト６で取付けられてい
る鋼製プレート受７の上に設置することにより取外しが
簡単であり、又水平方向の地震にも十分に対応できる。Furthermore, in a nuclear power plant, there is work to store spent fuel in the spent fuel storage pool 1 during periodic inspections, so the steel plate 5 needs to be removable. By installing the attachment part of the pool body 1 and the steel plate 5 on the steel plate support 7 which is attached to the pool body 1 with bolts 6 as shown in FIG. It can also fully respond to earthquakes.
この、鋼製プレート５を設置することにより、使用済燃
料貯蔵プールｌは、小ブロックに分割されるため、各ブ
ロックの中で生じるスロッシングによる衝撃的荷重は、
鋼製プレート５のない使用済燃料貯蔵プール１全体の衝
撃的荷重に比べ大幅に低減する事ができる。By installing this steel plate 5, the spent fuel storage pool l is divided into small blocks, so that the impact load caused by sloshing in each block is
The impact load can be significantly reduced compared to the impact load of the entire spent fuel storage pool 1 without the steel plate 5.
前記説明したように、本発明の鋼製プレートを格子型に
使用済燃料貯蔵プールに設置することにより、水平方向
の地震力を受けた際でも、水の水平方向の移動を拘束で
きるため、プール内の燃料ラック等への衝撃力又は、プ
ール水の流出を大幅に低減することができる。As explained above, by installing the steel plates of the present invention in a lattice type in a spent fuel storage pool, it is possible to restrain the horizontal movement of water even when subjected to horizontal seismic force, so that the pool It is possible to significantly reduce the impact force on the fuel rack, etc. inside the tank or the outflow of pool water.
第１図は沸噂水形原子炉建屋の説明図、第２図は通常原
子カプラントの使用済燃料貯蔵プールの説明図、第３図
は鋼製プレートの組み合せ図、第４図は鋼製プレートの
取付は詳細図、第５図は本発明の使用済燃料貯蔵プール
の群細図である。
■・・・使用済燃料貯蔵プール、２・・・貯蔵ラック、
３・・・プール水、４・・・プール運転床、５・・・鋼
製プレー＄２ 目
第 ５
＄４−目
りFigure 1 is an explanatory diagram of the boiling water reactor building, Figure 2 is an explanatory diagram of the spent fuel storage pool of a normal nuclear couplant, Figure 3 is a diagram of the combination of steel plates, and Figure 4 is an illustration of the steel plates. FIG. 5 is a detailed view of the spent fuel storage pool of the present invention. ■...Spent fuel storage pool, 2...Storage rack,
3...Pool water, 4...Pool driving floor, 5...Steel play $2nd 5th $4-th
Claims (1)
料貯蔵プールにおいて、プール水の揺動防止を目的とし
た取外し可能な鋼製プレートを、燃料貯蔵プール内に於
いて格子型に分割するように設けることを特徴とする使
用済燃料貯蔵プール。1. In a fuel storage pool that stores spent fuel used at a nuclear power plant, a removable steel plate is divided into a lattice type in the fuel storage pool to prevent the pool water from shaking. A spent fuel storage pool characterized by being provided as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56153608A JPS5855796A (en) | 1981-09-30 | 1981-09-30 | Spent fuel storage pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56153608A JPS5855796A (en) | 1981-09-30 | 1981-09-30 | Spent fuel storage pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5855796A true JPS5855796A (en) | 1983-04-02 |
Family
ID=15566199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56153608A Pending JPS5855796A (en) | 1981-09-30 | 1981-09-30 | Spent fuel storage pool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855796A (en) |
-
1981
- 1981-09-30 JP JP56153608A patent/JPS5855796A/en active Pending
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