JP2968361B2 - Assembled common base for fixing spent fuel storage rack - Google Patents

Assembled common base for fixing spent fuel storage rack

Info

Publication number
JP2968361B2
JP2968361B2 JP3049769A JP4976991A JP2968361B2 JP 2968361 B2 JP2968361 B2 JP 2968361B2 JP 3049769 A JP3049769 A JP 3049769A JP 4976991 A JP4976991 A JP 4976991A JP 2968361 B2 JP2968361 B2 JP 2968361B2
Authority
JP
Japan
Prior art keywords
fuel storage
spent fuel
fixing
common base
hole
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 - Lifetime
Application number
JP3049769A
Other languages
Japanese (ja)
Other versions
JPH04285895A (en
Inventor
岩倉成良
隆 松本
金井秀俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3049769A priority Critical patent/JP2968361B2/en
Publication of JPH04285895A publication Critical patent/JPH04285895A/en
Application granted granted Critical
Publication of JP2968361B2 publication Critical patent/JP2968361B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Landscapes

  • Combinations Of Kitchen Furniture (AREA)
  • Warehouses Or Storage Devices (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、原子力発電所の使用済
燃料貯蔵設備において使用済燃料貯蔵ラックを交換・設
置するのに用いられる使用済燃料貯蔵ラック固定用共通
ベースに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a common base for fixing spent fuel storage racks used for replacing and installing spent fuel storage racks in a spent fuel storage facility of a nuclear power plant.

【0002】[0002]

【従来の技術】一般に使用済燃料貯蔵ラック固定用共通
ベース(略して単に共通ベースという)は、種々の使用
済燃料貯蔵ラックを交換・設置する場合などに、その据
付のためベースとして用いられる。
2. Description of the Related Art Generally, a common base for fixing spent fuel storage racks (hereinafter simply referred to as a common base) is used as a base for installing various spent fuel storage racks when replacing or installing the same.

【0003】従来の共通ベース(例えば公開実用昭55
−97600参照)は、図11に示すように、H型鋼な
どを溶接して形成された一体構造となっていた。従っ
て、この共通ベース15を使用済燃料貯蔵プール床の基
礎ボルト16に固定するためには、共通ベース15に
は、その下部に基礎ボルトが通過する穴17が、また、
上部にはこの穴を通過した基礎ボルト16にナット19
を締付けるための特殊な工具18を挿通するための工具
用穴20が存在する。更に、共通ベース15上には使用
済燃料貯蔵ラックを据付・固定するためのラック固定用
ボルト6がある。
[0003] Conventional common bases (for example, published practical application 55
−97600), as shown in FIG. 11, had an integral structure formed by welding an H-beam or the like. Therefore, in order to fix the common base 15 to the foundation bolt 16 of the spent fuel storage pool floor, the common base 15 is provided with a hole 17 through which the foundation bolt passes, and
In the upper part, a nut 19 is attached to the foundation bolt 16 passing through this hole.
There is a tool hole 20 for inserting a special tool 18 for tightening the tool. Further, on the common base 15, there are rack fixing bolts 6 for installing and fixing the spent fuel storage rack.

【0004】[0004]

【発明が解決しようとする課題】前述の従来形の共通ベ
ース15を用いる場合には、工具用穴20とラック固定
用ボルト6が干渉しない様に、共通ベース15及び使用
済燃料貯蔵ラックの配置を決定しなければならず、使用
済燃料貯蔵プール内のレイアウトを考える上で、使用済
燃料貯蔵ラック及び共通ベースの配置に非常に複雑で厄
介な考慮を払わなければならないという問題があった。
When the above-mentioned conventional common base 15 is used, the common base 15 and the spent fuel storage rack are arranged so that the tool holes 20 and the rack fixing bolts 6 do not interfere with each other. In the layout of the spent fuel storage pool, there has been a problem that the arrangement of the spent fuel storage racks and the common base has to be very complicated and troublesome.

【0005】本発明は、前述の従来技術における問題を
解決するために、共通ベース上部の基礎ボルト締結工具
用穴と使用済燃料貯蔵ラック固定用ボルトとの干渉をな
くして、使用済燃料貯蔵プール内の使用済燃料貯蔵ラッ
ク及び共通ベースの配置を容易にする組立式の共通ベー
スを提供することを目的とする。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems in the prior art, the present invention eliminates the interference between the holes for the base bolt fastening tool on the upper portion of the common base and the bolts for fixing the spent fuel storage rack, thereby reducing the amount of spent fuel storage pool. It is an object of the present invention to provide a prefabricated common base that facilitates the arrangement of spent fuel storage racks and a common base in a vehicle.

【0006】[0006]

【課題を解決するための手段】本発明の組立式共通ベー
スは、使用済燃料貯蔵ラック固定用ボルトを上面に突設
した上部構造物と、基礎ボルト挿通用貫通穴を有する下
部構造物と、これら上部構造物と下部構造物とをその両
者間に間隙を置いて着脱可能に連結する連結手段とから
なることを特徴とする。
An assembly type common base according to the present invention comprises an upper structure having a spent fuel storage rack fixing bolt projecting from an upper surface thereof, a lower structure having a through hole for inserting a foundation bolt, and to become the these upper structure and lower structure and a connecting means for detachably connecting at intervals gap between both characterized.

【0007】[0007]

【作用】本発明の組立式共通ベースを使用済燃料貯蔵プ
ール床上に設置するには、上部構造物と切離した状態の
下部構造物を、該プール床の既設基礎ボルトが基礎ボル
ト挿通用貫通穴に挿通される様に、該プール床に設置し
て該基礎ボルトにより固定し、その後、上部構造物を下
部構造物に固定された連結台上に載置して連結具により
下部構造物に固定する。このように、本発明の組立式共
通ベースでは、従来の共通ベースにおける如き基礎ボル
ト締結工具用穴と使用済燃料貯蔵ラック固定用ボルトの
干渉を考慮しなくて済むため、使用済燃料貯蔵プール内
での使用済燃料貯蔵ラック及び共通ベースの配置が容易
になる。
In order to install the prefabricated common base of the present invention on the spent fuel storage pool floor, the lower structure which is separated from the upper structure is mounted on the pool floor by using the existing foundation bolts in the through holes for inserting the foundation bolts. So that it is inserted into the pool floor and fixed with the foundation bolts, and then the upper structure is placed on a connecting table fixed to the lower structure and fixed to the lower structure by the coupling tool I do. As described above, the assembly type common base of the present invention does not need to consider the interference between the holes for the base bolt fastening tool and the bolts for fixing the spent fuel storage rack as in the conventional common base. The arrangement of the spent fuel storage rack and the common base in the facility is facilitated.

【0008】[0008]

【実施例】図1,2は本発明の使用済燃料貯蔵ラック固
定用組立式共通ベース(単に共通ベースと略称する)の
1実施例を示す。この共通ベースは基本的に下部構造物
1と上部構造物3とから成る。下部構造物1は、使用済
燃料貯蔵プール床に既設されている基礎ボルトで共通ベ
ースを固定するための基礎ボルト用貫通穴2を有する。
下部構造物1には上部構造物3を固定するための連結台
4が取り付けられている。上部構造物3には、その強度
を保つための補強材5が周囲下面に固着されており、ま
た、共通ベース上に使用済燃料貯蔵ラックを固定するた
めのラック固定用ボルト6が上面に取り付けられてい
る。上部構造物3は、それにあけられた下部構造物連結
用貫通穴7に通した連結具(連結ボルト)9を連結台4
にあけられた上部構造物連結穴(ネジ穴)8に螺合する
ことによって、下部構造物1と連結される。このとき、
補強材5の内側面は連結台4の外側面にかぶさる。図2
(a),(b)は共通ベースが組み立てられた状態を示
している。
1 and 2 show an embodiment of an assembled common base (simply referred to as a common base) for fixing a spent fuel storage rack according to the present invention. This common base basically comprises a lower structure 1 and an upper structure 3. The lower structure 1 has a through hole 2 for a base bolt for fixing a common base with a base bolt already provided on the spent fuel storage pool floor.
A connection base 4 for fixing the upper structure 3 is attached to the lower structure 1. A reinforcing member 5 for maintaining the strength of the upper structure 3 is fixed to the surrounding lower surface, and a rack fixing bolt 6 for fixing a spent fuel storage rack on a common base is mounted on the upper surface. Have been. The upper structure 3 is provided with a connecting tool (connecting bolt) 9 which is passed through the lower structure connecting through hole 7 opened in the connecting structure 4.
The lower structure 1 is connected to the lower structure 1 by screwing into the upper structure connection hole (screw hole) 8. At this time,
The inner surface of the reinforcing member 5 covers the outer surface of the connecting stand 4. FIG.
(A), (b) has shown the state where the common base was assembled.

【0009】使用済燃料貯蔵プールに共通ベースを設置
する場合には、まず、図3(a)に示す様に、下部構造
物1をその穴2に基礎ボルト16を通す様にして、プー
ル床21に設置し、特殊工具18を用いて基礎ボルト1
6にナット19を締付けることにより、下部構造物1を
プール床21に固定する。次に図3(b)に示す様に下
部構造物1上に上部構造物3を設置し、穴7に通した連
結具9を特殊工具18を用いて連結台4のネジ穴8に螺
合することにより、下部構造物1に上部構造物3を固定
して、共通ベースの組立てを完了する。共通ベース組立
て終了後は、図3(c)の如く、使用済燃料貯蔵ラック
22をラック固定用ボルト6により共通ベース上に設置
・固定し得る。
When a common base is installed in a spent fuel storage pool, first, as shown in FIG. 21 and use the special tool 18 to
The lower structure 1 is fixed to the pool floor 21 by tightening the nut 19 to 6. Next, as shown in FIG. 3 (b), the upper structure 3 is set on the lower structure 1, and the connecting tool 9 passed through the hole 7 is screwed into the screw hole 8 of the connecting table 4 using a special tool 18. By doing so, the upper structure 3 is fixed to the lower structure 1, and the assembly of the common base is completed. After the assembly of the common base is completed, the spent fuel storage rack 22 can be installed and fixed on the common base by the rack fixing bolts 6 as shown in FIG.

【0010】従来型の共通ベースでは、共通ベースを基
礎ボルトに固定するための基礎ボルト挿通用穴と共通ベ
ース上部に設置する使用済燃料貯蔵ラック固定用のボル
トとが干渉する場合が多く、使用済燃料貯蔵プール内で
の共通ベースや使用済燃料貯蔵ラックの配置が難しかっ
た。しかし本実施例では、共通ベースを上部構造物1と
下部構造物3に分割したため、基礎ボルト用貫通穴2と
ラック固定用ボルト6の位置が自由に設定できるため、
使用済燃料貯蔵プール内での配置が容易になる。また本
実施例では、上部構造物3の下面、連結台4の上面およ
び外側面、補強材5の内側面などを予め機械加工してお
くので、共通ベースを組み立てる際の所定の精度を得る
ことができる。
In the conventional common base, there are many cases where a base bolt insertion hole for fixing the common base to the base bolt interferes with a spent fuel storage rack fixing bolt installed on the upper part of the common base. It was difficult to arrange the common base and the spent fuel storage rack in the spent fuel storage pool. However, in this embodiment, since the common base is divided into the upper structure 1 and the lower structure 3, the positions of the through holes 2 for base bolts and the bolts 6 for fixing the rack can be set freely.
The arrangement in the spent fuel storage pool is facilitated. In this embodiment, since the lower surface of the upper structure 3, the upper surface and the outer surface of the connecting base 4, and the inner surface of the reinforcing member 5 are machined in advance, it is possible to obtain a predetermined accuracy when assembling the common base. Can be.

【0011】上部構造物3の下部構造物1に対する位置
決め精度をより高くするために、図4又は図5に示すよ
うに、斜面を有する突起物10を連結台4の上部または
下部構造物1本体の上部に設け、それに嵌まる斜面を有
する突起物用穴11を上部構造物3に設けてもよい。
In order to increase the positioning accuracy of the upper structure 3 with respect to the lower structure 1, as shown in FIG. 4 or FIG. The upper structure 3 may be provided with a projection hole 11 having an inclined surface that fits in the upper structure.

【0012】連結具9の頭部が上部構造物3上面に出る
のを防ぐために、図6に示すように上部構造物3に座ぐ
り12を施して、上部構造物3の上面が平らになる様に
してもよい。上部構造物3の上面が平らであることは、
使用済燃料貯蔵ラックを共通ベース上に設置する自由度
を大きくする。すなわち、該ラックの脚部や貯蔵される
燃料棒の下部が連結具9の頭部と干渉することがない。
In order to prevent the head of the connecting member 9 from coming out on the upper surface of the upper structure 3, a counterbore 12 is applied to the upper structure 3 as shown in FIG. You may do. The fact that the upper surface of the upper structure 3 is flat
Increase the degree of freedom in installing spent fuel storage racks on a common base. That is, the legs of the rack and the lower part of the stored fuel rods do not interfere with the head of the connecting tool 9.

【0013】上部構造物3と下部構造物1の連結は、連
結具9の挿通・螺合によって行なう代りに、図7に示す
ように、連結台4の上部に予め連結用ネジ13を植設し
ておき、これにナット14を螺合することによって連結
を行なってもよい。この場合、連結用ネジ13は、ねじ
込み又は溶接によって連結台4上部に予め取り付けてお
けばよい。この実施例によれば、連結台4に設けた連結
用穴に異物が入り込んだり、該穴の中に水が存したりす
ることによる連結の不具合はない。
The connection between the upper structure 3 and the lower structure 1 is not performed by inserting and screwing the connecting tool 9, but a connecting screw 13 is previously planted on the connecting table 4 as shown in FIG. The connection may be made by screwing the nut 14 to this. In this case, the connection screw 13 may be attached to the upper portion of the connection base 4 in advance by screwing or welding. According to this embodiment, there is no connection failure due to foreign matter entering the connection hole provided in the connection base 4 or water remaining in the hole.

【0014】上部構造物3と下部構造物1との位置決め
は、図8に示すように補強材5と連結台4とに斜面を設
け、その両者の当接によって行なってもよい。すなわ
ち、補強材5を共通ベース据付け時の位置決めガイド部
材兼上部構造物3の強度部材として用いてもよい。
The positioning of the upper structure 3 and the lower structure 1 may be performed by providing a slope on the reinforcing member 5 and the connecting base 4 as shown in FIG. That is, the reinforcing member 5 may be used as a positioning guide member and a strength member of the upper structure 3 when the common base is installed.

【0015】前記実施例においては連結具9はボルトと
しているが、代りに、連結具9は、図9の如く、連結台
4の穴に曲し止めされる爪を有する棒状又は板状の部材
とするか、又は図10の如く、連結台4に設けた斜面を
有する穴に緊密嵌合する斜面を有する棒状又は板状の部
材としてもよい。
In the above embodiment, the connecting member 9 is a bolt, but instead, as shown in FIG. 9, the connecting member 9 is a rod-shaped or plate-shaped member having claws bent into holes in the connecting base 4. Alternatively, as shown in FIG. 10, a rod-shaped or plate-shaped member having a slope closely fitted to a hole having a slope provided in the connecting stand 4 may be used.

【0016】図7,9又は10の実施例においても、ネ
ジ13やナット14又は連結具9の頭部が上部構造物3
の上面から突出しない様に、図6の実施例に準じて座ぐ
りを設けてよい。
In the embodiment shown in FIGS. 7, 9 or 10, the head of the screw 13, the nut 14 or the connecting member 9 is
A counterbore may be provided in accordance with the embodiment of FIG.

【0017】[0017]

【発明の効果】本発明によれば、従来の共通ベースにお
ける如き、基礎ボルト締結工具用穴と使用済燃料貯蔵ラ
ック固定用ボルトの干渉がなくなるため、共通ベース及
び使用済燃料貯蔵ラックの使用済燃料貯蔵プール内への
配置が容易になる。また、事前に上部構造物や連結台を
機械加工できるので、共通ベースの組立の容易さ及び精
度の向上が図れる。
According to the present invention, unlike the conventional common base, the interference between the hole for the base bolt fastening tool and the bolt for fixing the spent fuel storage rack is eliminated, so that the common base and the spent fuel storage rack are used. The arrangement in the fuel storage pool becomes easy. In addition, since the upper structure and the connecting table can be machined in advance, the ease and accuracy of assembling the common base can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の組立式共通ベースの1実施例の分解斜
視図。
FIG. 1 is an exploded perspective view of one embodiment of an assembly-type common base according to the present invention.

【図2】上記実施例の組立式共通ベースの組立完了状態
を示す平面図(但し上部構造物は一部破断除去して示し
てある)および側面図。
FIG. 2 is a plan view (with the upper structure partially cut away and shown) and a side view showing an assembled state of the assembly type common base of the embodiment.

【図3】上記実施例の組立手順を示す側面図および使用
済燃料貯蔵ラックを共通ベース上に据付けた状態を示す
側面図。
FIG. 3 is a side view showing an assembling procedure of the embodiment and a side view showing a state in which a spent fuel storage rack is installed on a common base.

【図4】他の実施例の一部を示す側断面図。FIG. 4 is a side sectional view showing a part of another embodiment.

【図5】更に他の実施例の一部を示す側断面図。FIG. 5 is a side sectional view showing a part of still another embodiment.

【図6】更に他の実施例の一部を示す側断面図。FIG. 6 is a side sectional view showing a part of still another embodiment.

【図7】更に他の実施例の一部を示す側断面図。FIG. 7 is a side sectional view showing a part of still another embodiment.

【図8】更に他の実施例の一部を示す側断面図。FIG. 8 is a side sectional view showing a part of still another embodiment.

【図9】更に他の実施例の一部を示す側断面図。FIG. 9 is a side sectional view showing a part of still another embodiment.

【図10】更に他の実施例の一部を示す側断面図。FIG. 10 is a side sectional view showing a part of still another embodiment.

【図11】従来の共通ベースの斜視図。FIG. 11 is a perspective view of a conventional common base.

【符号の説明】[Explanation of symbols]

1…下部構造物 2…基礎ボルト用
貫通穴 3…上部構造物 4…連結台 5…補強材 6…ラック固定用
ボルト 7…下部構造物連結用貫通穴 8…上部構造物連
結穴 9…連結具 10…斜面を有す
る突起物 11…嵌合穴 12…座ぐり 13,14…連結具
DESCRIPTION OF SYMBOLS 1 ... Lower structure 2 ... Through hole for foundation bolts 3 ... Upper structure 4 ... Connection table 5 ... Reinforcement 6 ... Bolt for fixing rack 7 ... Through hole for lower structure connection 8 ... Connection hole for upper structure 9 ... Connection Tool 10: Projection having a slope 11 ... Fitting hole 12: Counterbore 13, 14 ... Connecting tool

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭55−97600(JP,U) 実開 昭58−37598(JP,U) (58)調査した分野(Int.Cl.6,DB名) G21C 19/07 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 55-97600 (JP, U) Japanese Utility Model Sho 58-37598 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) G21C 19/07

Claims (10)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 使用済燃料貯蔵ラック固定用ボルトを上
面に突設した上部構造物と、基礎ボルト挿通用貫通穴を
有する下部構造物と、これら上部構造物と下部構造物と
をその両者間に間隙を置いて着脱可能に連結する連結手
段とからなることを特徴とする使用済燃料貯蔵ラック固
定用組立式共通ベース。
1. An upper structure having a bolt for fixing a spent fuel storage rack protruding from an upper surface thereof, a lower structure having a through hole for inserting a foundation bolt, and the upper structure and the lower structure being interposed therebetween. spent fuel storage rack for fixing prefabricated common base, characterized by comprising a connecting means for detachably connecting at intervals gap to.
【請求項2】 前記連結手段は、上面に連結用穴を有し
且つ下部構造物の上面に固定された連結台と、上部構造
物に明けられた連結用貫通穴を貫通して前記連結台の連
結用穴に係合する連結具とからなる請求項1記載の使用
済燃料貯蔵ラック固定用組立式共通ベース。
2. The connecting means having a connecting hole on the upper surface and fixed to the upper surface of the lower structure, and the connecting means penetrating through a connecting through hole formed in the upper structure. 2. The assembled common base for fixing a spent fuel storage rack according to claim 1, further comprising a connecting tool which is engaged with said connecting hole.
【請求項3】 前記連結台の有する連結用穴はネジ穴で
あり、前記連結具は該ネジ穴に螺合するボルトである請
求項2記載の使用済燃料貯蔵ラック固定用組立式共通ベ
ース。
3. The assembled common base for fixing a spent fuel storage rack according to claim 2, wherein the connection hole of the connection base is a screw hole, and the connection tool is a bolt screwed into the screw hole.
【請求項4】 前記連結具は結合爪を有する板状または
棒状部材であり、前記連結台の有する連結用穴は該連結
具の係合爪が曲し止め係合される穴である請求項2記載
の使用済燃料貯蔵ラック固定用組立式共通ベース。
4. The connection tool is a plate-like or rod-shaped member having a connection claw, and the connection hole of the connection base is a hole in which the engagement claw of the connection tool is bent and engaged. 2. An assembled common base for fixing a spent fuel storage rack according to item 2.
【請求項5】 前記連結具は斜面を有する先細の板状ま
たは棒状部材であり、前記連結台の有する連結用穴は該
連結具が緊密嵌合する斜面を有する穴である請求項2記
載の使用済燃料貯蔵ラック固定用組立式共通ベース。
5. The connecting tool according to claim 2, wherein the connecting tool is a tapered plate-like or rod-shaped member having a slope, and the connecting hole of the connecting base is a hole having a slope on which the connecting tool fits tightly. Assembled common base for fixing spent fuel storage racks.
【請求項6】 前記連結手段は、上面に突出ネジを有し
且つ下部構造物の上面に固定された連結台と、上部構造
物に明けられた連結用貫通穴を貫通した上記突出ネジに
螺合するナットとからなる請求項1記載の使用済燃料貯
蔵ラック固定用組立式共通ベース。
6. The connecting means has a projecting screw on the upper surface and is fixed to the upper surface of the lower structure, and the projecting screw penetrates a connecting through hole formed in the upper structure. The assembled common base for fixing a spent fuel storage rack according to claim 1, comprising a mating nut.
【請求項7】 上部構造物に明けられた前記連結用貫通
穴の周りには、請求項2,3,4もしくは5における連
結具の頭部または請求項6における突出ネジの頭部およ
びナットが上部構造物の上面から出ない様な深さの座ぐ
りが施されている請求項2,3,4,5または6記載の
使用済燃料貯蔵ラック固定用組立式共通ベース。
7. A head of a connecting tool according to claim 2, 3, 4 or 5, or a head and a nut of a projecting screw according to claim 6, around the connecting through hole formed in the upper structure. 7. The assembled common base for fixing a spent fuel storage rack according to claim 2, wherein a counterbore is provided so as not to protrude from the upper surface of the upper structure.
【請求項8】 上部構造物の下面には補強材が固定され
ている請求項1ないし7のいずれかに記載の使用済燃料
貯蔵ラック固定用組立式共通ベース。
8. The assembled common base for fixing a spent fuel storage rack according to claim 1, wherein a reinforcing member is fixed to a lower surface of the upper structure.
【請求項9】 前記補強材が前記連結台の側部に当接す
ることによって上部構造物が下部構造物に対し位置決め
される請求項8記載の使用済燃料貯蔵ラック固定用組立
式共通ベース。
9. The assembled common base for fixing a spent fuel storage rack according to claim 8, wherein the upper structure is positioned with respect to the lower structure by the reinforcing member abutting on a side portion of the connection stand.
【請求項10】 斜面を有する突起物を前記連結台の上
面に又は下部構造物の上面に設け、該突起物が嵌合する
穴を上部構造物に設けた請求項1ないし8のいずれかに
記載の使用済燃料貯蔵ラック固定用組立式共通ベース。
10. The upper structure according to claim 1, wherein a projection having a slope is provided on an upper surface of the connection base or an upper surface of the lower structure, and a hole for fitting the projection is provided in the upper structure. Assembled common base for fixing spent fuel storage racks as described.
JP3049769A 1991-03-14 1991-03-14 Assembled common base for fixing spent fuel storage rack Expired - Lifetime JP2968361B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3049769A JP2968361B2 (en) 1991-03-14 1991-03-14 Assembled common base for fixing spent fuel storage rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3049769A JP2968361B2 (en) 1991-03-14 1991-03-14 Assembled common base for fixing spent fuel storage rack

Publications (2)

Publication Number Publication Date
JPH04285895A JPH04285895A (en) 1992-10-09
JP2968361B2 true JP2968361B2 (en) 1999-10-25

Family

ID=12840380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3049769A Expired - Lifetime JP2968361B2 (en) 1991-03-14 1991-03-14 Assembled common base for fixing spent fuel storage rack

Country Status (1)

Country Link
JP (1) JP2968361B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101710495B (en) * 2009-12-02 2012-10-03 岭澳核电有限公司 Installation structure of spent fuel storage pool in PTR system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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
JP5854821B2 (en) * 2011-12-22 2016-02-09 三菱重工業株式会社 Underwater bolt / nut tightening device and underwater reracing method using the device
JP6155047B2 (en) * 2013-02-22 2017-06-28 三菱重工業株式会社 Fuel storage rack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101710495B (en) * 2009-12-02 2012-10-03 岭澳核电有限公司 Installation structure of spent fuel storage pool in PTR system

Also Published As

Publication number Publication date
JPH04285895A (en) 1992-10-09

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