JP2505123B2 - Fuel assembly assembling device - Google Patents
Fuel assembly assembling deviceInfo
- Publication number
- JP2505123B2 JP2505123B2 JP4091610A JP9161092A JP2505123B2 JP 2505123 B2 JP2505123 B2 JP 2505123B2 JP 4091610 A JP4091610 A JP 4091610A JP 9161092 A JP9161092 A JP 9161092A JP 2505123 B2 JP2505123 B2 JP 2505123B2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- assembly
- support
- fuel assembly
- fuel
- 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
- Automatic Assembly (AREA)
- Fuel Cell (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 into a support grid. It is a thing.
【０００２】[0002]
【従来の技術】図６に示すように、原子燃料集合体（１
４）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
系超合金のインコネルの薄板をプレス加工で所定形状に
成型すると共に、図４（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 4), a large number of fuel rods (13) are securely held between the upper nozzle (15) and the lower nozzle (16) at a predetermined interval, and sufficient performance is achieved without any trouble during the operation of the reactor. A plurality of support grids (S) ... (S) are provided in the longitudinal direction of the fuel rod so that they can be exhibited. In order to remove heat from the surface of the fuel rods that generate heat, the support lattices usually have a large number of fuel rods and control rod guide thimble tubes aligned in parallel in a large number of cells partitioned by the lattices. It serves to maintain a necessary gap between the fuel rods to ensure the flow of the coolant, and generally forms a thin plate of iron-chromium-nickel superalloy Inconel into a predetermined shape by pressing and 4 (A) and 4 (B), a grid having slits provided with elastic protrusions (18) and fixing protrusions (19) for elastically holding fuel rods (not shown) in the cells (17) It is manufactured by assembling the plates in a vertical and horizontal lattice shape and combining and joining the intersecting portions above and below by various metallurgical joining means such as welding or 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５（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）…（２
０）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）…（２０）
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 elastic lugs must be retracted so that they do not damage the fuel rods. Therefore, conventionally, Japanese Patent Publication No. 54-443
As described in JP-A-60, when the fuel rod is inserted into or removed from the support grid, as shown in FIGS. 5 (A) and 5 (B), slit holes (S 1 ) ...
A plurality of protrusions (20) ... (2) according to the interval of (S 1 )
0) is provided with key member (K), after inserting and projections vertically into the slit hole (S 1) ... (S 1 ),
Rotate the key member by 90 degrees and project the protrusions (20) ... (20)
Is pressed against the groove edge portions (21) ... (21) as shown in the figure, so that the elastic projections (18) ...
(18) was pressed to form a space in the cell (17) into which the fuel rod entered without contact.
【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
外しが非常に困難であるとの問題を有している。By the way, the key members pass through the cells formed in a square matrix and penetrate the supporting grid in two directions orthogonal to each other, and are inserted by the number of the matrix. Then, when the key member is rotated, one worker must stand on each side of the key member so as not to break the key member and rotate the key member from both ends. That is, when the key member is inserted, the support grids are not fixed individually, so that the work can be performed, but at the time of extraction, the support grids are fixed by the assembly fixing jig for inserting the fuel rods. Therefore, even if the key member inserted in the horizontal direction can be removed by rotating it from both sides,
The removal of the key member in the up and down direction has a problem that the fixing jig interferes with the rotation work from both sides and the removal is very difficult.
【０００５】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
をより簡単に行わしめることを目的とするものである。The present invention has been made in view of the above situation, and by finding a new structure capable of favorably supporting the support grid, the key member can be easily rotated and removed. The purpose is to tighten.
【０００６】[0006]
【課題を解決するための手段】しかして、上記目的に適
合する本発明燃料集合体の組立装置の特徴は、燃料集合
体支持格子の外周面を該外周面に設けた多数のスリット
孔を露出せしめて着脱自在に保持しうる複数のドラム
を、各ドラムが保持する支持格子が燃料集合体の規定位
置となるよう支持棒にて連結せしめて組立ドラムを形成
すると共に、該組立ドラムを横設して、回転支持機構に
より上記支持格子の並び方向を軸として回動可能ならし
めたところにある。また、上記組立装置において、各ド
ラムを円盤状に形成すると共に、上記回転支持機構を、
上記円盤状ドラムの下部を支持する、該ドラムの軸と平
行に設けた少なくとも２本の回動可能なローラによって
構成して装置の簡素化を図ることも好適である。そし
て、上記組立ドラムの回動を、モータ等により自動的に
行わしめ、さらに、前記ドラムと回転支持機構の基台と
に夫々穿設したピン穴と、これらピン穴に貫挿する位置
決めピンとを用い、組立ドラムの固定を確実にすること
も好ましい。SUMMARY OF THE INVENTION Therefore, the feature of the fuel assembly assembling apparatus of the present invention which meets the above-mentioned object is that a large number of slit holes are formed on the outer peripheral surface of the fuel assembly supporting grid. At least a plurality of drums that can be detachably held are connected by a support rod so that the support grid held by each drum is at a specified position of the fuel assembly to form an assembled drum, and the assembled drum is installed horizontally. Then, the rotation support mechanism is provided so as to be rotatable about the arrangement direction of the support grids as an axis. Further, in the assembly apparatus, each drum is formed into a disk shape, and the rotation support mechanism is
It is also preferable that the device is simplified by being constituted by at least two rotatable rollers that support the lower portion of the disc-shaped drum and that are provided in parallel with the axis of the drum. Then, the assembly drum is automatically rotated by a motor or the like, and further, pin holes formed in the drum and the base of the rotation support mechanism and positioning pins inserted into these pin holes are provided. It is also preferable to use and ensure the fixing of the assembly drum.
【０００７】[0007]
【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支
持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, the required number of support grids are defined in the fuel assembly by the assembly drum including the plurality of drums and the support rods connecting the drums. Keep it in position,
The key member is removed. That is, first of all,
The assembly drum is rotated so that one of the key members, which are inserted into the support grids so as to be crossed in two orthogonal directions, is horizontal, and the key members are rotated and removed from both sides of the assembly drum. Then, the assembly drum is then rotated 90 ° to make the other key member horizontal, and similarly the key member is rotated from both sides to be removed, whereby the removal of the key member from the support grid is completed.
【０００８】[0008]
【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は該組立装置のドラムを示す
斜視図であり、各図における支持格子には前記したキー
部材が既に取着されている。本発明実施例の組立装置
は、燃料集合体の支持格子（Ｓ）の外周面を多数のスリ
ット孔（Ｓ1 ) を露出させて着脱自在に保持する、図２
に示す如きドラム（１）を複数、各ドラム（１）…
（１）が保持する支持格子（Ｓ）…（Ｓ）が図６に示す
燃料集合体の規定位置となるよう３本の支持棒（２）…
（２）にて連結せしめた組立ドラム（３）と、横設した
この組立ドラム（３）を、支持格子（Ｓ）…（Ｓ）の並
び方向を軸として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。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an assembling apparatus of a fuel assembly according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a drum of the assembling apparatus. The above-mentioned key member is already attached to the support grid in each drawing. ing. The assembly apparatus according to the embodiment of the present invention detachably holds the outer peripheral surface of the support grid (S) of the fuel assembly by exposing a number of slit holes (S 1 ).
, A plurality of drums (1), each drum (1) ...
The support grids (S) held by (1) ... (S) are set to the prescribed positions of the fuel assembly shown in FIG.
A rotation support mechanism for rotatably supporting the assembly drum (3) connected at (2) and the horizontally installed assembly drum (3) about the arrangement direction of the support grids (S) ... (S). (4) and.
【０００９】ドラム（１）は、図２に示すように中心に
支持格子（Ｓ）を嵌合する嵌合口（５）を有する円盤状
に形成されると共に、その１部（１ａ）が、支持格子
（Ｓ）を挿入または引き抜き可能なように、ボルト（１
ｂ）によって着脱自在に分割されている。上記嵌合口
（５）は上述したように、支持格子（Ｓ）の外周面に設
けられている多数のスリット孔（Ｓ1 ) …（Ｓ1 ) が露
出するように、支持格子（Ｓ）を浅く保持するよう形成
されている。As shown in FIG. 2, the drum (1) is formed in a disk shape having a fitting opening (5) for fitting the support grid (S) in the center, and a part (1a) thereof is supported. Bolts (1) so that the grid (S) can be inserted or pulled out
It is detachably divided by b). As described above fitting opening (5) above, as a large number of slits provided in the outer peripheral surface of the support grid (S) (S 1) ... (S 1) is exposed, the support grating (S) It is formed to hold shallow.
【００１０】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本の支持棒（２）…（２）が、図２に示すドラ
ム（１）の支持棒用穴（１ｃ）…（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。上記支持棒は、好ましくは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、所要とする支持格子
（Ｓ）の数だけ設けることが望ましい。On the other hand, usually 7 to 9 support grids (S) ... (S) are used in the fuel assembly, but the dimensions between these support grids are very strictly protected for various reasons. There is a need. Therefore, in the drum (1) ... (1), the above-mentioned three support rods (2) ... (2) are provided in the support rod holes (1c) ... (1c) of the drum (1) shown in FIG. Assembly drums (3) that are inserted and fixed, respectively, and have rigidity as a whole
Is formed. It is preferable that the number of the support rods is two or more because it is easy to maintain the rigidity of the assembly drum (3) and the spacing between the support grids (S) ... (S) is accurately maintained. Further, it is desirable to provide the drum (1) as many as the required number of supporting grids (S).
【００１１】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）によって構成され、
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すことにより、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に示す
如く、９０°ごとにピン穴（９）…（９）が穿設されて
おり、図３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) has a disk-shaped drum (1) ...
It is composed of two rollers (6), (6) that support the lower part of (1) and that are provided parallel to the axis of the drum (1),
The rollers (6), (6) are rotatably provided on a base (7) via bearings (8) ... (8).
That is, the assembly drum (3) has the rollers (6),
By rotating (6) by a motor or manually, it is possible to rotate about a line connecting the centers of the support lattices (S) ... (S). Further, as shown in FIG. 2, the drum (1) is provided with pin holes (9) ... (9) at every 90 °, and as shown in FIG. 3, a part of the base (7) is formed. By stopping the rotation of the assembly drum (3) by inserting the positioning pin (12) into the pin hole (11) of a certain positioning block (10) by penetrating the pin hole (9) of the drum. Is possible.
【００１２】次に、上記実施例の組立方装置の使用方法
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、傷損防止のために、
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。Next, a method of using the assembling apparatus of the above embodiment will be described. As described in the section of the conventional example, the support grid (S) is provided to prevent damage and damage when the fuel rod is inserted.
The elastic projections supporting the fuel rods must be retracted in the cells, so that the key members (K) described above are inserted into the support grid (S) in advance by the number of rows and columns of the cells.
【００１３】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, the supporting grids (S) ... (S) in which the key members (K) are inserted as described above are set on the respective drums (1) ... (1) as shown in FIG. 1, and the drums are fixed. rear,
An instrumentation guide tube, a control rod guide tube, and a fuel rod (not shown) are inserted into each cell of the support grids (S) ... (S). Then, the key member (K) is removed from each of the support grids (S) ... (S). In the assembling apparatus of the present invention, the operation of removing the key member (K) is performed by the rotation supporting mechanism by the assembly drum (3). ) Can be easily carried out by rotating.
【００１４】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。以上、本発明の実施例に
ついて説明したが、回転支持機構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。That is, when removing the key member (K), it is necessary to rotate the key member (K) from both sides thereof so that the member (K) is not broken.
A number of key members (K) that are inserted crosswise
Rotate the assembly drum (3) so that one side is horizontal,
The key member (K) is removed by rotating it from both sides of the assembly drum (3), and then the assembly drum (3) is rotated by 90 ° to make the other key member (K) horizontal, and similarly from both sides, Since the key member (K) can be rotated and removed, the vertical key member, which has been difficult in the past, can be extremely easily removed. 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 can be appropriately modified in design without departing from the scope of the present invention.
【００１５】[0015]
【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、支持格子の外周面を該外周面に設けた
多数のスリット孔を露出せしめて、着脱自在に保持しう
る複数のドラムを、各ドラム間に所要間隔があくよう支
持棒にて連結せしめて組立ドラムを形成すると共に、該
組立ドラムを横設して、回転支持機構により上記支持格
子の並び方向を軸として回動可能ならしめたものであ
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の顕著な
効果を奏するものである。As described above, in the apparatus for assembling a fuel assembly according to the present invention, the outer peripheral surface of the support grid is exposed by a large number of slit holes provided in the outer peripheral surface so that the plurality of slits can be detachably held. The drums are connected by supporting rods so that there is a required space between the drums to form an assembly drum, and the assembly drum is installed horizontally, and is rotated by the rotation support mechanism about the alignment direction of the support grids. When the assembly drum is rotated by the rotation support mechanism, a large number of key members that are inserted into the support grid crossing in two directions are all in a horizontal state, and each of the key members is movable in each direction. This has the remarkable effect that the key members can be rotated from both sides and the removal thereof can be performed extremely easily and quickly as compared with the conventional case.
【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 device of a fuel assembly according to an embodiment of the present invention.
【図２】同実施例のドラムを示す斜視図である。FIG. 2 is a perspective view showing a drum of the embodiment.
【図３】ドラムと位置決めピンを示す要部拡大図であ
る。FIG. 3 is an enlarged view of a main part showing a drum and a positioning pin.
【図４】（Ａ）支持格子セルの平面図である。 （Ｂ）同正面図である。FIG. 4A is a plan view of a supporting grid cell. (B) It is the same front view.
【図５】（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. 5 (A) is a plan view showing a usage state of the key member. (B) It is the same front view.
【図６】燃料集合体の概要図である。FIG. 6 is a schematic diagram of a fuel assembly.
（１） ドラム （２） 支持棒 （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(1) Drum (2) Support rod (3) Assembly drum (4) Rotation support mechanism (5) Mating 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 (4)
に設けた多数のスリット孔を露出せしめて着脱自在に保
持しうる複数のドラムを、各ドラムが保持する支持格子
が燃料集合体の規定位置となるよう支持棒にて連結せし
めて組立ドラムを形成すると共に、該組立ドラムを横設
して、回転支持機構により上記支持格子の並び方向を軸
として回動可能ならしめたことを特徴とする燃料集合体
の組立装置。1. A fuel assembly comprising a plurality of drums, each of which has an outer peripheral surface of a fuel assembly support grid and which is detachably held by exposing a number of slit holes provided in the outer peripheral surface, is a fuel assembly. The assembly drum is formed by connecting the support rods so that the assembly drum is located at the specified position, and the assembly drum is horizontally installed and rotatable by the rotation support mechanism about the arrangement direction of the support grids. A device for assembling a characteristic fuel assembly.
に、上記回転支持機構を、上記円盤状ドラムの下部を支
持する、該ドラムの軸と平行に設けた少なくとも２本の
回動可能なローラによって構成した請求項１記載の燃料
集合体の組立装置。2. Each of the drums is formed in a disc shape, and the rotation supporting mechanism supports at least two lower parts of the disc-shaped drum and is provided in parallel with the axis of the drum. The assembly device for a fuel assembly according to claim 1, wherein
装置を用いて行わしめる請求項１または２記載の燃料集
合体の組立装置。3. The assembly apparatus for a fuel assembly according to claim 1, wherein the assembly drum is rotated by using a drive device such as a motor.
ラムと回転支持機構の基台とに夫々穿設したピン穴と、
これらピン穴に貫挿する位置決めピンとを用いた請求項
１，２または３記載の燃料集合体の組立装置。4. A pin hole formed in the drum and the base of the rotation support mechanism as a stopper of the assembly drum, respectively.
The assembly device for a fuel assembly according to claim 1, wherein a positioning pin that is inserted through these pin holes is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4091610A JP2505123B2 (en) | 1992-03-16 | 1992-03-16 | Fuel assembly assembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4091610A JP2505123B2 (en) | 1992-03-16 | 1992-03-16 | Fuel assembly assembling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05264784A JPH05264784A (en) | 1993-10-12 |
| JP2505123B2 true JP2505123B2 (en) | 1996-06-05 |
Family
ID=14031344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4091610A Expired - Lifetime JP2505123B2 (en) | 1992-03-16 | 1992-03-16 | Fuel assembly assembling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505123B2 (en) |
-
1992
- 1992-03-16 JP JP4091610A patent/JP2505123B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05264784A (en) | 1993-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4885127A (en) | Nuclear fuel rod support grid with attachable spring and dimple support spacers | |
| US5135710A (en) | Filtration plate associated with a lower connector of a fuel assembly of a nuclear reactor | |
| US3475273A (en) | Nuclear reactor fuel assembly | |
| JP3754126B2 (en) | Method for repairing a fuel assembly having a broken fuel rod and spacer | |
| US3878042A (en) | Spring and stop assembly for nuclear fuel bundle | |
| JPS60146184A (en) | Method of reconstructing reactor fuel aggregate | |
| JP2585742B2 (en) | Workpiece handling equipment | |
| US11738416B2 (en) | Spacer grid welding fixture | |
| JP2505123B2 (en) | Fuel assembly assembling device | |
| JP3182673B2 (en) | Fuel assembly assembly equipment | |
| JPH0631756B2 (en) | Method and retaining component for repairing a damaged nuclear fuel assembly in the vicinity of a spacer support | |
| JPH029551B2 (en) | ||
| JPH0656434B2 (en) | Spring retaining device and method for facilitating fuel rod loading | |
| US4784825A (en) | Method and apparatus for preventing and repairing vibrational damage to nuclear fuel rods | |
| EP0134920B1 (en) | Welding fixture for nuclear reactor fuel assembly grid | |
| JPS60111989A (en) | Fuel aggregate for nuclear reactor | |
| US4710342A (en) | Structure assemblable and disassemblable on a racking site for the storage of nuclear reactor fuel elements | |
| US4101752A (en) | Process for welding corner cells in fuel assembly grids | |
| US3057793A (en) | Improvements relating to locking arrangements for nuclear reactor fuel elements | |
| JPH05341088A (en) | Automatic key removing device for supporting lattice | |
| JPH05264783A (en) | Equipment for automatic removal of key member in support lattice | |
| US4725402A (en) | Welded nuclear fuel grid and method | |
| JPH06258489A (en) | Key member for inspecting and removing fuel rod and operating method thereof | |
| JPH06148384A (en) | Equipment for automatic removal of key member in support grating | |
| US3789476A (en) | Method of manufacturing a nuclear fuel assembly spacer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960116 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110402 Year of fee payment: 15 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120402 Year of fee payment: 16 |
|
| EXPY | Cancellation because of completion of term |