JP3182673B2 - Fuel assembly assembly equipment - Google Patents
Fuel assembly assembly equipmentInfo
- Publication number
- JP3182673B2 JP3182673B2 JP08141593A JP8141593A JP3182673B2 JP 3182673 B2 JP3182673 B2 JP 3182673B2 JP 08141593 A JP08141593 A JP 08141593A JP 8141593 A JP8141593 A JP 8141593A JP 3182673 B2 JP3182673 B2 JP 3182673B2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- assembly
- fuel
- support
- key member
- 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
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
【０００１】[0001]
【産業上の利用分野】本発明はＰＷＲ燃料集合体の組立
装置に係り、詳しくは、支持格子に燃料棒等を挿脱する
に際し使用するキー部材の抜き取りに好適な燃料集合体
の組立装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PWR fuel assembly assembling apparatus, and more particularly, to a fuel assembly assembling apparatus suitable for extracting a key member used for inserting and removing a fuel rod or the like from a support grid. Things.
【０００２】[0002]
【従来の技術】図８に示すように、原子燃料集合体１４
には、多数の燃料棒１３同士を所定の間隔を隔て、上部
ノズル１５と、下部ノズル１６間で確実に保持し、原子
炉運転中何等支障なく充分に性能を発揮できるように支
持格子Ｓ…Ｓが燃料棒長手方向に複数個設けられてい
る。この支持格子は通常、格子によって仕切られた多数
のセル内に、夫々多数の燃料棒および一部所要位置に制
御棒案内シンブル管などを平行に整列させ、発熱する燃
料棒表面から除熱するため燃料棒間に必要なギャップを
保持して冷却材の流れを保障する働きをするものであ
り、一般に鉄−クロム−ニッケル系超合金の薄板をプレ
ス加工で所定形状に成型すると共に、図６（Ａ），
（Ｂ）に示すように燃料棒（図示せず）をセル１７内で
弾性的に保持する弾性突起１８や固定突起１９を設け、
スリットを付した格子板を縦横格子状に組み立ててその
交わる部分の上下を各種溶接やロー付等の冶金的接合手
段で結合一体化することによって製作されている。2. Description of the Related Art As shown in FIG.
In order to ensure that a large number of fuel rods 13 are held at predetermined intervals between the upper nozzle 15 and the lower nozzle 16, the support grids S... A plurality of S are provided in the fuel rod longitudinal direction. This support grid is usually used to arrange a large number of fuel rods and a control rod guide thimble tube or the like at a required position in parallel in a large number of cells partitioned by the grid to remove heat from the surface of the fuel rods that generate heat. It functions to maintain the necessary gap between the fuel rods and to guarantee the flow of the coolant. Generally, a thin plate of an iron-chromium-nickel superalloy is formed into a predetermined shape by press working, and FIG. A),
As shown in (B), an elastic projection 18 and a fixing projection 19 for elastically holding a fuel rod (not shown) in the cell 17 are provided.
It is manufactured by assembling a grid plate with slits in a vertical and horizontal lattice shape and joining and integrating the upper and lower portions of the intersection by various metallurgical joining means such as welding and brazing.
【０００３】一方、上記多数の燃料棒は、上述の如く支
持格子の各セル内で前記弾性突起と固定突起とにより弾
性的に保持されているが、この燃料棒の挿入または抜き
取りに際しては、上記両突起によって燃料棒が傷つけら
れることがないように、弾性突起の方を引っ込ませてお
かねばならない。そこで、従来は、特公昭５４−４４３
６０号公報に記載の如く、この燃料棒の支持格子への挿
入あるいは抜き取りに際し、図７（Ａ），（Ｂ）に示す
如く、セル１７コーナー部のスリット孔Ｓ1 …Ｓ1 の間
隔に合わせ複数の突出部２０…２０を設けたキー部材Ｋ
を、上記スリット孔Ｓ1 …Ｓ1 に突出部を縦にして挿入
した後に、キー部材を９０度回転させ、突出部２０…２
０を図示の如く溝縁部２１…２１に圧接することによっ
てキー部材Ｋの背で前記弾性突起１８…１８を押圧し、
燃料棒が非接触状態で入る空間部をセル１７内に形成せ
しめていた。On the other hand, the large number of fuel rods are elastically held by the elastic projections and the fixed projections in each cell of the support grid as described above. The resilient projection must be retracted so that the projection does not damage the fuel rod. Therefore, conventionally, Japanese Patent Publication No. 54-443
As described in 60 JP, upon insertion or withdrawal of the support grid of the fuel rods, FIG. 7 (A), as (B), the suit interval slits S 1 ... S 1 of the cell 17 corners Key member K provided with a plurality of protrusions 20.
Are inserted vertically into the slit holes S 1 ... S 1 , and then the key member is rotated by 90 degrees.
0 is pressed against the groove edges 21... 21 as shown in the figure to press the elastic projections 18.
A space into which the fuel rod enters in a non-contact state is formed in the cell 17.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上記キー部
材は、正方行列に形成される上記セルを通り、前記支持
格子を直交する２方向に貫通して上記行列の数だけ挿入
される。そして、このキー部材を回転させる際には、該
キー部材が折れないように、その両側に作業者が１人ず
つ立って両端からこのキー部材を回転させねばならな
い。即ち、キー部材の挿入時に際しては、支持格子は個
々が固定されていないので該作業が行えるとしても、抜
き取り時には、上記支持格子は燃料棒挿入のために集合
体固定治具にて固定されることから、水平方向に挿入さ
れているキー部材は両側から回転させて取り外せても、
上下方向のキー部材の抜き取りは上記固定治具が邪魔に
なって両側からの回転作業が行えず、これによって取り
外しが非常に困難になるとの問題を有している。The key members pass through the cells formed in a square matrix, penetrate the support grid in two orthogonal directions, and are inserted by the number of the matrices. When the key member is rotated, one worker must stand on each side of the key member and rotate the key member from both ends so that the key member is not broken. That is, when the key member is inserted, the support grid is not fixed individually, so that the work can be performed. However, at the time of extraction, the support grid is fixed by the assembly fixing jig for fuel rod insertion. Therefore, even if the key member inserted horizontally can be removed by rotating it from both sides,
The removal of the key member in the vertical direction has a problem that the fixing jig hinders the rotation work from both sides, which makes the removal extremely difficult.
【０００５】このような問題に対処して、本発明の出願
人は、特願平４−９１６１０号にて支持格子を回転可能
に支持する燃料集合体の組立装置を提案しているが、こ
の装置は、キー部材の抜き取りに好適な機能を発揮する
も、支持格子を着脱する構成に未だ改良の余地が残され
ていた。In order to cope with such a problem, the applicant of the present invention has proposed a fuel assembly assembling apparatus for rotatably supporting a support grid in Japanese Patent Application No. 4-91610. Although the device exerts a function suitable for extracting the key member, there is still room for improvement in the structure for attaching and detaching the support grid.
【０００６】本発明は、叙上の如き実状に鑑みてなされ
たものであり、上記支持格子を好適に支持しうる新規な
構成を見出すことにより、上記キー部材の回転・取外し
をより簡単に行うと共に、さらに組立後の燃料集合体の
取外しも迅速に行わしめることを目的とするものであ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and has found a novel structure capable of favorably supporting the support grid, thereby making it easier to rotate and remove the key member. It is another object of the present invention to quickly remove the assembled fuel assembly.
【０００７】[0007]
【課題を解決するための手段】即ち、上記目的に適合す
る本発明の燃料集合体の組み立て装置の特徴は、キー部
材が挿入された支持格子の外周面を、この外周面の前記
キー部材が挿入されたスリット孔を露出せしめて嵌合保
持する複数の円盤状ドラムと、上記保持された支持格子
が燃料集合体の規定位置となるよう、上記ドラムを連結
して組立ドラムを形成する複数の連結棒と、上記組立ド
ラムを横設して、該組立ドラムを上記支持格子の並び方
向を軸に回動自在に支持する回転支持機構とを備えてな
り、上記各ドラムを上記連結棒を夫々に具備せしめて２
分割すると共に、対をなす分割体の一端部間同士を枢着
し、かつ上記分割体の他端部同士を係止する係止手段を
設けた点にある。Means for Solving the Problems] That is, the feature of the assembly apparatus of the fuel assembly conforming present invention the above object, the key portion
The outer peripheral surface of the support grid wood has been inserted, the of the outer peripheral surface
A plurality of disk-shaped drums that expose and expose and hold the slit holes into which the key members are inserted, and the above-mentioned drums are connected so that the above-mentioned held support grid is at a specified position of the fuel assembly, thereby forming an assembly drum. a plurality of connecting rods, and laterally disposed the building drum, the said set upright drum becomes and a rotary support mechanism for rotatably supported axis alignment direction of the support grid, the connecting the respective drums 2 each with a stick
With split, pivoted to each other between the one end of the divided body in the pair, and in that provided locking means for locking the other ends of the divided bodies.
【０００８】[0008]
【作用】上記構成を有する本発明燃料集合体の組立装置
においては、複数のドラムと、これらを連結せしめた連
結棒とからなる組立ドラムによって、所要数の支持格子
を燃料集合体において規定される位置に保持せしめて、
前記キー部材の取り外しを行う。即ち、先ず、最初に、
各支持格子に多数、直交する２方向にクロスして挿入さ
れたキー部材の一方が水平になるよう組立ドラムを回動
させ、該組立ドラムの両側からこのキー部材を回転させ
て取り外す。そして、次に組立てドラムを９０°回動さ
せて他方のキー部材を水平にし、同様に両側から該キー
部材を回転させて抜き取れば、支持格子からのキー部材
の取り外しは完了する。In the fuel assembly assembling apparatus of the present invention having the above structure, a required number of support grids are defined in the fuel assembly by the assembly drum composed of a plurality of drums and connecting rods connecting these. Hold it in position,
The key member is removed. That is, first, first,
The assembling drum is rotated so that one of the key members inserted into each of the support lattices crosswise in two orthogonal directions becomes horizontal, and the key members are rotated and removed from both sides of the assembling drum. Then, the assembly drum is turned 90 ° to make the other key member horizontal, and the key member is similarly rotated and removed from both sides to complete the removal of the key member from the support grid.
【０００９】また、組立てられた燃料集合体は、ＭＯＸ
燃料や回収ウラン燃料などのように放射線量率の高い燃
料であると、組立装置からの取り出しを迅速に行う必要
があるが、上記本発明の組立装置では、支持格子を保持
する各ドラムを同時開閉させることができるため、組立
て後の燃料集合体を迅速に取り外すことが可能である。Further, the assembled fuel assembly is a MOX
In the case of fuel having a high radiation dose rate such as fuel or recovered uranium fuel, it is necessary to quickly remove the fuel from the assembling apparatus. Since the fuel assembly can be opened and closed, the assembled fuel assembly can be quickly removed.
【００１０】[0010]
【実施例】以下、さらに添付図面を参照し、本発明の実
施例を説明する。図１は本発明実施例の燃料集合体の組
立装置を示す斜視図、図２は同実施例のドラムと支持格
子を示す斜視図、図３は同ドラムの分解斜視図、図４は
同ドラムの開いた状態を示す正面図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an assembly apparatus for a fuel assembly according to an embodiment of the present invention, FIG. 2 is a perspective view showing a drum and a support grid of the embodiment, FIG. 3 is an exploded perspective view of the drum, and FIG. It is a front view which shows the opened state.
【００１１】本発明実施例の組立装置は、図１，図２に
示すように、支持格子Ｓの外周面を、この外周面のスリ
ット孔Ｓ1 …Ｓ1 を露出した状態で保持する複数の円盤
状のドラム１…１と、この保持された複数の支持格子Ｓ
…Ｓが、図８に示す如き組立てられる燃料集合体の規定
位置となるよう、上記各ドラム１…１を連結して組立ド
ラム３を形成する３本の連結棒２…２と、上記組立ドラ
ム３を横設して、上記支持格子Ｓ…Ｓの並び方向を軸に
回動自在に支持する回転支持機構４とによって構成され
ている。[0011] assembling apparatus of the present invention embodiment, as shown in FIGS. 1 and 2, the outer peripheral surface of the support grid S, a plurality of holding in a state of being exposed slit S 1 ... S 1 of the outer peripheral surface 1 and a plurality of support grids S held by the
... three connecting rods 2 ... 2 connecting the drums 1 ... 1 to form an assembly drum 3 such that S is at a prescribed position of the fuel assembly to be assembled as shown in Fig. 8; 3 and a rotation support mechanism 4 that rotatably supports the support grids S...
【００１２】各ドラム１…１は、図２，図３にも示すよ
うに、夫々連結棒２…２を具備した状態で、２つに分割
されており、対をなす分割体１ａ，１ｂの一端部同士が
支持ピンＰ1 によって枢着されると共に、これら１対の
分割体１ａ，１ｂの他端部同士を係止する固定ピンＰ2
を設けて、分割体１ａ，１ｂが図２のように閉じるよう
にしている。即ち、この実施例では、上記ドラム１…１
を、支持格子Ｓ…Ｓを保持する正方形の嵌合口５の対角
線で斜めに２分割し、上半部を可動側分割体１ａ…１ａ
とする共に、下半部を固定側分割体１ｂ…１ｂとして、
連結棒２で継ながった可動側分割体１ａ…１ａを、図４
に示すように同時開閉させることにより、支持格子Ｓ…
Ｓの着脱を行うようになっている。As shown in FIGS. 2 and 3, each of the drums 1... 1 is provided with a connecting rod 2. One end is pivotally connected by a support pin P 1 , and a fixed pin P 2 that locks the other end of the pair of divided bodies 1 a and 1 b together.
Is provided so that the divided bodies 1a and 1b are closed as shown in FIG. That is, in this embodiment, the drums 1.
Is divided diagonally by a diagonal line of a square fitting opening 5 that holds the support lattices S.
And the lower half as a fixed side divided body 1b ... 1b
The movable side divided bodies 1a... 1a connected by the connecting rod 2 are shown in FIG.
By simultaneously opening and closing as shown in FIG.
S is attached and detached.
【００１３】一方、燃料集合体には、通常７〜９個の支
持格子Ｓ…Ｓが用いられているが、これら支持格子間の
寸法は種々の理由により非常に厳密に守られる必要があ
る。そのため、ドラム１…１には、前記した３本の連結
棒２…２が、図２，図３に示すドラム１の連結棒用穴１
ｃ…１ｃに夫々挿通して固定され、全体として剛性を有
する組立ドラム３を形成している。上記連結棒は、少な
くとも２本以上あった方が組立ドラム３の剛性を保ち易
く、上記支持格子Ｓ…Ｓの間隔を正確に保持する上で好
適である。また、上記ドラム１は、必要とする支持格子
Ｓの数だけ設けることが望ましい。On the other hand, 7 to 9 support grids S... S are usually used in a fuel assembly, but the dimensions between these support grids need to be very strictly maintained for various reasons. Therefore, the three connecting rods 2... 2 described above are provided in the drums 1.
c... 1c are respectively inserted and fixed to form an assembly drum 3 having rigidity as a whole. The use of at least two connecting rods facilitates maintaining the rigidity of the assembling drum 3 and is preferable for accurately maintaining the spacing between the support lattices S. In addition, it is desirable that the drum 1 be provided in a number corresponding to the required number of support grids S.
【００１４】他方、前記回転支持機構４は、図１に示す
ように、組立ドラム３の円盤状ドラム１…１の下部を支
持する、該ドラム１の軸と平行に設けた２本のローラ
６，６を有し、このローラ６，６は、基台７上にベアリ
ング８…８を介して回動自在に設けられている。即ち、
上記組立ドラム３は、このローラ６，６をモータや手動
で回転させることにより、前記各支持格子Ｓ…Ｓの中心
同士を結ぶ線を軸に回動することができる。またさら
に、ドラム１には図２，図３に示す如く、９０°ごとに
ピン穴９…９が穿設されており、図５に示すように基台
７の一部である位置決めブロック１０のピン穴１１に、
上記ドラムのピン穴９を貫通させて位置決めピン１２を
差し込むことより、組立ドラム３の回動を止めて固定す
ることが可能である。On the other hand, as shown in FIG. 1, the rotation support mechanism 4 supports two rollers 6 provided in parallel with the axis of the disk 1 for supporting the lower part of the disk-shaped drums 1. , 6 which are rotatably provided on a base 7 via bearings 8. That is,
The assembly drum 3 can be rotated about a line connecting the centers of the support lattices S... S by rotating the rollers 6 and 6 by a motor or manually. Further, as shown in FIGS. 2 and 3, pin holes 9... 9 are formed in the drum 1 at 90 ° intervals, so that the positioning block 10 which is a part of the base 7 as shown in FIG. In the pin hole 11,
By inserting the positioning pins 12 through the pin holes 9 of the drum, the rotation of the assembly drum 3 can be stopped and fixed.
【００１５】次に、上記実施例の組立装置の使用態様を
説明する。支持格子Ｓは、従来例の項で説明したよう
に、燃料棒を挿入する際には、損傷防止のために、セル
内で燃料棒を支持する弾性突起を引っ込めておかねばな
らず、このため、前記したキー部材Ｋがセルの行・列の
数だけ前もって支持格子Ｓに挿入される。[0015] Next, a mode of use of the set TatsuSo location of the above embodiment. As described in the section of the conventional example, when inserting the fuel rod, the support lattice S must retract the elastic projection supporting the fuel rod in the cell in order to prevent damage. The key members K are inserted into the support lattice S in advance by the number of rows and columns of cells.
【００１６】次いで、上記の如くキー部材Ｋが挿入され
た支持格子Ｓ…Ｓを、図１に示す如く各ドラム１…１に
セットし、ドラムを固定した後、支持格子Ｓ…Ｓの各セ
ルに計装用案内管，制御棒案内管，燃料棒（図示せず）
を夫々挿入する。そして上記各支持格子Ｓ…Ｓからキー
部材Ｋを取り外すが、本発明の組立装置においては、こ
のキー部材Ｋの取り外し作業を、前記回転支持機構４に
よって組立ドラム３を回動させることによって容易に行
わしめることが可能である。Next, as shown in FIG. 1, the support grids S... Into which the key members K are inserted are set on the respective drums 1. Instrumentation guide tube, control rod guide tube, fuel rod (not shown)
Are inserted respectively. The key member K is removed from each of the support lattices S... S. In the assembling apparatus of the present invention, the work of removing the key member K can be easily performed by rotating the assembly drum 3 by the rotation support mechanism 4. It is possible to do it.
【００１７】即ち、上記キー部材Ｋを取り外す際には、
該部材Ｋを折ることがないように、その両側から回転さ
せる必要があるが、本発明装置では、先ず、２方向にク
ロスして挿入されている多数のキー部材Ｋの一方が水平
になるよう組立ドラム３を回動させ、該組立ドラム３の
両側からキー部材Ｋを回転させて取り外し、次いで、組
立ドラム３を９０°回動させて他方のキー部材Ｋを水平
にし、同様に両側から該キー部材Ｋを回転させ取り外す
ことができ、従来困難であった上下方向のキー部材の取
り外しも極めて容易に行うことが可能となる。That is, when removing the key member K,
It is necessary to rotate the member K from both sides so as not to break it. In the device of the present invention, first, one of a large number of key members K inserted crosswise in two directions is horizontal. The assembly drum 3 is rotated, and the key members K are rotated and removed from both sides of the assembly drum 3. Then, the assembly drum 3 is rotated by 90 ° to make the other key member K horizontal, and the same is performed from both sides. The key member K can be rotated and removed, and the removal of the key member in the vertical direction, which was difficult in the past, can be performed very easily.
【００１８】また、上記の工程により組立てられた燃料
集合体は、ＭＯＸあるいは回収ウラン燃料のように放射
線量率の高いものであると、組立装置からの取り出しを
より速く行う必要があるが、上記本発明実施例の組立装
置においては、支持格子Ｓ…Ｓを保持する各ドラム１…
１を、前記したように可動側分割体１ａ…１ａを、全部
を同時に開閉させることから、組立後の燃料集合体を極
めて迅速に取り外せるとの大きなメリットを有するもの
である。If the fuel assembly assembled by the above process has a high radiation dose rate, such as MOX or recovered uranium fuel, it is necessary to take it out of the assembling apparatus more quickly. In the assembling apparatus according to the embodiment of the present invention, each of the drums 1 holding the support grids S.
As described above, since all of the movable side divided bodies 1a... 1a are simultaneously opened and closed as described above, there is a great merit that the assembled fuel assembly can be removed very quickly.
【００１９】以上、本発明の実施例について説明した
が、回転支持機構や固定ピンをはじめとする各部の構成
は、本発明の要旨を逸脱しない範囲において適宜に設計
変更しうることはいうまでもない。Although the embodiment of the present invention has been described above, it goes without saying that the configuration of each part including the rotation support mechanism and the fixing pin can be appropriately changed without departing from the gist of the present invention. Absent.
【００２０】[0020]
【発明の効果】以上説明したように、本発明の燃料集合
体の組立装置は、支持格子を嵌合保持する複数のドラム
を所定間隔で連結せしめて組立ドラムを形成すると共
に、この組立ドラムを横設して回動自在に支持する回転
支持機構を設け、さらに上記各ドラムを分割せしめて、
対をなす分割体の一端部同士を枢着する一方、他端部に
係止手段を設け、上記各ドラムの同時開閉により支持格
子の着脱を行うものであり、上記回転支持機構により組
立ドラムを回動させることによって、支持格子に２方向
にクロスして挿入された多数のキー部材を何れも水平状
態となし、各方向のキー部材を夫々両側から回転可能な
らしめてその取り外しを従来に比し極めて容易かつ迅速
に行わしめると共に、上記同時開閉しうるドラムの構成
により、組立て後の燃料集合体の取り出しを迅速に行わ
しめて、手間と時間ならびに作業員の被曝を削減すると
のの顕著な効果を奏するものである。As described above, in the fuel assembly assembling apparatus according to the present invention, a plurality of drums for fitting and holding the support grid are connected at predetermined intervals to form an assembly drum, and this assembly drum is formed. Provide a rotation support mechanism that is installed horizontally and rotatably supported, further dividing each of the drums,
While one end of the pair of divided bodies is pivotally connected to each other, a locking means is provided at the other end, and the support grid is attached and detached by simultaneously opening and closing the respective drums. By rotating, a large number of key members inserted into the support grid in two directions are made horizontal, and the key members in each direction are rotatable from both sides. The structure of the drum that can be opened and closed at the same time as above is extremely easy and quick, and the fuel assembly after assembly is quickly taken out, which has a remarkable effect of reducing labor, time, and exposure of workers. To play.
【図１】本発明実施例の燃料集合体の組立装置を示す斜
視図である。FIG. 1 is a perspective view showing an assembly apparatus for a fuel assembly according to an embodiment of the present invention.
【図２】同実施例のドラムと支持格子とを示す斜視図で
ある。FIG. 2 is a perspective view showing a drum and a support grid of the embodiment.
【図３】同実施例のドラムの分解斜視図である。FIG. 3 is an exploded perspective view of the drum of the embodiment.
【図４】同実施例のドラムの開いた状態を示す正面図で
ある。FIG. 4 is a front view showing the opened state of the drum of the embodiment.
【図５】同実施例のドラムと位置決めピンを示す要部拡
大図である。FIG. 5 is an enlarged view of a main part showing a drum and a positioning pin of the embodiment.
【図６】（Ａ）支持格子セルの平面図である。 （Ｂ）同正面図である。FIG. 6A is a plan view of a support grid cell. (B) It is the same front view.
【図７】（Ａ）キー部材の使用状態を示す平面図であ
る。 （Ｂ）同正面図である。FIG. 7A is a plan view illustrating a use state of a key member. (B) It is the same front view.
【図８】燃料集合体の概要図である。FIG. 8 is a schematic diagram of a fuel assembly.
１ ドラム １ａ 可動側分割体 １ｂ 固定側分割体 ２ 連結棒 ３ 組立ドラム ４ 回転支持機構 ５ 嵌合口 ６ ローラ ７ 基台 ８ ベアリング ９ ピン穴 １０ 位置決めブロック １１ ピン穴 １２ 位置決めピン Ｋ キー部材 Ｓ 支持格子 Ｓ1 スリット孔DESCRIPTION OF SYMBOLS 1 Drum 1a Movable divided body 1b Fixed divided body 2 Connecting rod 3 Assembly drum 4 Rotation support mechanism 5 Fitting port 6 Roller 7 Base 8 Bearing 9 Pin hole 10 Positioning block 11 Pin hole 12 Positioning pin K Key member S Support grid S 1 slit hole
Claims (1)
を、この外周面の前記キー部材が挿入されたスリット孔
を露出せしめて嵌合保持する複数の円盤状ドラムと、上
記保持された支持格子が燃料集合体の規定位置となるよ
う、上記各ドラムを連結して組立ドラムを形成する複数
の連結棒と、上記組立ドラムを横設して、該組立ドラム
を上記支持格子の並び方向を軸に回動自在に支持する回
転支持機構とを備えてなり、上記各ドラムを上記連結棒
を夫々に具備せしめて２分割すると共に、対をなす分割
体の一端間同士を枢着し、かつ上記分割体の他端部に該
他端部同士を係止する係止手段を設けたことを特徴とす
る燃料集合体の組み立て装置。A plurality of disc-shaped drums for fitting and holding an outer peripheral surface of a support lattice into which a key member is inserted by exposing a slit hole of the outer peripheral surface into which the key member is inserted; as the supporting grid is defined position of the fuel assembly, a plurality of connecting rods forming an assembly drum by connecting the respective drums, and laterally disposed of said building drum, said set upright drum
The result and a rotary support mechanism for rotatably supported axis alignment direction of the support grid, the respective drum with two split allowed provided the people respectively the connecting rod, one end of the divided bodies of the pair between each other and pivotally mounted, and the divided bodies assembled device of the fuel assembly, characterized in that a locking means for locking the <br/> other ends to the other end of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08141593A JP3182673B2 (en) | 1993-03-15 | 1993-03-15 | Fuel assembly assembly equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08141593A JP3182673B2 (en) | 1993-03-15 | 1993-03-15 | Fuel assembly assembly equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06265691A JPH06265691A (en) | 1994-09-22 |
| JP3182673B2 true JP3182673B2 (en) | 2001-07-03 |
Family
ID=13745721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08141593A Expired - Lifetime JP3182673B2 (en) | 1993-03-15 | 1993-03-15 | Fuel assembly assembly equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3182673B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5662167B2 (en) | 2009-02-09 | 2015-01-28 | 協和発酵バイオ株式会社 | Method for producing L-amino acid |
| US8681921B2 (en) * | 2009-03-30 | 2014-03-25 | Ge-Hitachi Nuclear Energy Americas, Llc | System for assembling or disassembling a segmented rod |
| US8693612B2 (en) | 2009-09-11 | 2014-04-08 | Korea Atomic Energy Research Institute | Unit spacer grid strap, unit spacer grid, and spacer grid for nuclear fuel rods |
-
1993
- 1993-03-15 JP JP08141593A patent/JP3182673B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06265691A (en) | 1994-09-22 |
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