JPS5812158Y2 - Spent fuel storage rack - Google Patents
Spent fuel storage rackInfo
- Publication number
- JPS5812158Y2 JPS5812158Y2 JP1978177312U JP17731278U JPS5812158Y2 JP S5812158 Y2 JPS5812158 Y2 JP S5812158Y2 JP 1978177312 U JP1978177312 U JP 1978177312U JP 17731278 U JP17731278 U JP 17731278U JP S5812158 Y2 JPS5812158 Y2 JP S5812158Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel storage
- rack
- spent fuel
- storage rack
- common base
- 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
- Warehouses Or Storage Devices (AREA)
Description
【考案の詳細な説明】
本考案は燃料貯蔵プール底部に据付け、原子炉より取出
した燃料を保管する使用済燃料貯蔵ラックに係り、特に
共通ベースを介在させて据付けることにより、燃料貯蔵
プール底部からの基礎ボルトに作用する引張力を軽減す
ることを特徴とする使用済燃料貯蔵ラックに関する。[Detailed description of the invention] The present invention relates to a spent fuel storage rack that is installed at the bottom of a fuel storage pool to store fuel taken out from a nuclear reactor. The present invention relates to a spent fuel storage rack characterized by reducing the tensile force acting on the foundation bolts from the base bolts.
従来の使用済燃料貯蔵ラックは、例えば縦方向３列、横
方向１０列す２燃料を貯蔵できる構成であった。A conventional spent fuel storage rack has a configuration in which, for example, three columns in the vertical direction and 10 columns in the horizontal direction can store two fuels.
この形状では、縦方向に短い長方形であるために、地震
時に於いてラックが転倒する場合、ラック下端角部の回
転中心から最大引張力の作用する基礎ボルトまでの距離
を大きくとることができない。With this shape, since the rack is a short rectangle in the vertical direction, if the rack topples during an earthquake, it is not possible to provide a large distance from the center of rotation at the bottom corner of the rack to the foundation bolt where the maximum tensile force is applied.
転倒モーメントによる引張力は、その距離に逆比例する
ので基礎ボルトには大きな引張力が作用し、ひいてはよ
り強固な基礎ボルト用下地材を使用しなければならない
欠点を持つ。Since the tensile force due to the overturning moment is inversely proportional to the distance, a large tensile force acts on the foundation bolts, which has the disadvantage that a stronger base material for the foundation bolts must be used.
本考案は上述の事情を鑑みてなされたもので、使用済燃
料貯蔵ラック複数台を共通ベースを介在させて、燃料貯
蔵プール底部に据付けることにより、ラックが転倒する
場合の共通ベース下端角部の回転中心から最大引張力の
作用する基礎ボルトまでの距離を大きくとり、基礎ボル
トに作用する引張力を大幅に軽減することを目的とする
。The present invention has been developed in view of the above-mentioned circumstances, and by installing multiple spent fuel storage racks at the bottom of the fuel storage pool with a common base interposed, the bottom corner of the common base can be easily removed in case the racks topple over. The purpose is to significantly reduce the tensile force acting on the foundation bolt by increasing the distance from the center of rotation to the foundation bolt where the maximum tensile force acts.
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.
第１図、第２図に示す如く本考案の使用済燃料貯蔵ラッ
クは、燃料１１を保管する為の角筒形状した単体ラック
Ｕ複数台と共通ベースＵから構成される。As shown in FIGS. 1 and 2, the spent fuel storage rack of the present invention is composed of a plurality of single racks U each having a rectangular tube shape for storing fuel 11 and a common base U.
本ラックは燃料貯蔵プール底１４に共通ベースＵを介し
て据付けられろ。This rack is installed on the fuel storage pool bottom 14 via a common base U.
前記単体ラックＵは第３図、第４図に示す様に、燃料１
１を垂直状態にて保管し、かつ容易に出入れできる断面
が４角形の管である角管１５を１列に並べて、角管１５
の上段、中段、下段をそれぞれ両側から短連給板１６に
て固定して小組立する。As shown in FIGS. 3 and 4, the single rack U stores fuel 1.
The square tubes 15, which are tubes with a square cross section that can be stored vertically and easily taken out and taken out, are lined up in a row.
The upper, middle, and lower stages are each fixed from both sides with short feed plates 16 for small assembly.
小組立した角管１５を更に長連組板１Ｔをクロス状に固
定して単体ラックＵを形成する。A single rack U is formed by fixing the rectangular tubes 15 that have been subassembled in a cross-like manner to a long series of assembled plates 1T.
前記単体ラックＵの下部には、ベース１８が固定されて
いる。A base 18 is fixed to the lower part of the single rack U.
前記ベース１８の上部には燃料１１の下部を支持する為
の丸穴１９がおいている。A round hole 19 for supporting the lower part of the fuel 11 is provided in the upper part of the base 18.
またベース１Ｂ下部には共通ベースト３上部からのラッ
ク取付ボルト２０が通過する***がおいており、***を
通過したラック取付ボルト２０をナツト２１にて締付け
て単体ラックＬ２を共通ベース１３上部に固定する。In addition, there is a small hole at the bottom of the base 1B through which the rack mounting bolt 20 from the top of the common base 3 passes, and the rack mounting bolt 20 that has passed through the small hole is tightened with a nut 21 to fix the single rack L2 to the top of the common base 13. do.
前記共通ベースＬ３は第５図、第６図に示す様にＨ形材
２２．２３の溶接構成により形成される。The common base L3 is formed by welding H-shaped members 22 and 23 as shown in FIGS. 5 and 6.
Ｈ形材２２，２３の上部には、単体ラック１−２を据付
けるためのラック取付ボルト２０複数本固定されている
。A plurality of rack mounting bolts 20 for installing the single rack 1-2 are fixed to the upper portions of the H-shaped members 22 and 23.
またＨ形材２２下部には、燃料貯蔵プール底１４かもの
基礎ボルト２４が通過する***がおいており、この***
を通過した基礎ボルト２４をナツト２５にて締付けて、
共通ベース１３を燃料貯蔵プール底１４に固定する。Further, at the lower part of the H-shaped member 22, there is a small hole through which the foundation bolt 24 of the fuel storage pool bottom 14 passes, and the foundation bolt 24 that has passed through this small hole is tightened with a nut 25.
The common base 13 is fixed to the fuel storage pool bottom 14.
上述の様に単体ラック１２複数台を共通ベースリを介在
させて燃料貯蔵プール１４の底部に据付けるために、地
震時に於いてラックが転倒する場合、共通ベース１３下
端角部の回転中心２６から最大引張力の作用する基礎ボ
ルト２７までの距離を大きくとることができる。As described above, since a plurality of single racks 12 are installed at the bottom of the fuel storage pool 14 with a common base interposed therebetween, if the rack falls during an earthquake, the maximum distance from the center of rotation 26 at the lower end corner of the common base 13 The distance to the foundation bolt 27 on which tensile force acts can be increased.
転倒による引張力はその距離に逆比例するので、基礎ボ
ルト２４に作用する引張力を減少させることができる。Since the tensile force due to the fall is inversely proportional to the distance, the tensile force acting on the foundation bolt 24 can be reduced.
以上の説明の様に本考案の使用済燃料貯蔵ラックは構成
されているため、基礎ボルトに作用する引張力を大幅に
軽減できる。Since the spent fuel storage rack of the present invention is constructed as described above, the tensile force acting on the foundation bolts can be significantly reduced.
特に、既存の燃料貯蔵プールの底部に、燃料貯蔵密度を
高めた使用済燃料貯蔵ラックを据付ける場合について有
効である。This is particularly effective when installing a spent fuel storage rack with increased fuel storage density at the bottom of an existing fuel storage pool.
この場合、勿論、共通ベース上のラック取付ボルトに作
用する引張力は、共通ベースの有無に関係なく、大きい
ので、高張力鋼材のボルトを使用する又はボルトの本数
を増加する等の対策は必要である。In this case, of course, the tensile force acting on the rack mounting bolts on the common base is large regardless of the presence or absence of the common base, so countermeasures such as using bolts made of high-tensile steel or increasing the number of bolts are necessary. It is.
第１図は本考案の使用済燃料貯蔵ラックの一実施例を示
す概略正面図、第２図は第１図の平面図、第３図は単体
ラックの概略正面図、第４図は第３図の概略側面図、第
５図は共通ベースの概略正面図、第６図は第５図の概略
平面図である。
Ｌ２・・・単体ランク、Ｌ３・・・共通ベース、１５・
・・角管、１６・・・短連給板、１７・・・長連給板。FIG. 1 is a schematic front view showing one embodiment of the spent fuel storage rack of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a schematic front view of a single rack, and FIG. 5 is a schematic front view of the common base, and FIG. 6 is a schematic plan view of FIG. 5. L2...Single rank, L3...Common base, 15.
... Square tube, 16... Short continuous feeding plate, 17... Long continuous feeding plate.
Claims (1)
の単体ラックを支持する連結板と、前記単体ラックと燃
料プール底との間に介在され単体ラックの固定板となる
共通ベースとからなる使用済燃料貯蔵ラック。It consists of a plurality of square cylinder-shaped single racks that store fuel, a connecting plate that supports the single racks, and a common base that is interposed between the single racks and the bottom of the fuel pool and serves as a fixing plate for the single racks. Spent fuel storage rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978177312U JPS5812158Y2 (en) | 1978-12-27 | 1978-12-27 | Spent fuel storage rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978177312U JPS5812158Y2 (en) | 1978-12-27 | 1978-12-27 | Spent fuel storage rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5597600U JPS5597600U (en) | 1980-07-07 |
| JPS5812158Y2 true JPS5812158Y2 (en) | 1983-03-08 |
Family
ID=29186693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978177312U Expired JPS5812158Y2 (en) | 1978-12-27 | 1978-12-27 | Spent fuel storage rack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5812158Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3752393B2 (en) * | 1998-11-30 | 2006-03-08 | 株式会社東芝 | Rack installation structure in lining container |
| EP2209125B1 (en) * | 2009-01-09 | 2013-05-15 | Cci Ag | Storage rack assembly for storing nuclear fuel elements |
| JP6392067B2 (en) * | 2014-10-09 | 2018-09-19 | 株式会社東芝 | Nuclear fuel storage facility and nuclear fuel storage method |
| JP2018141796A (en) * | 2018-04-09 | 2018-09-13 | 株式会社東芝 | Nuclear fuel storage equipment and nuclear fuel storage method |
-
1978
- 1978-12-27 JP JP1978177312U patent/JPS5812158Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5597600U (en) | 1980-07-07 |
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