JPH0321513Y2 - - Google Patents
Info
- Publication number
- JPH0321513Y2 JPH0321513Y2 JP1985038338U JP3833885U JPH0321513Y2 JP H0321513 Y2 JPH0321513 Y2 JP H0321513Y2 JP 1985038338 U JP1985038338 U JP 1985038338U JP 3833885 U JP3833885 U JP 3833885U JP H0321513 Y2 JPH0321513 Y2 JP H0321513Y2
- Authority
- JP
- Japan
- Prior art keywords
- base
- fuel assembly
- base plate
- moved
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 39
- 238000007689 inspection Methods 0.000 description 27
- 238000005259 measurement Methods 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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
【考案の詳細な説明】
（産業上の利用分野）
この考案は燃料集合体主として加圧水型原子炉
用の燃料集合体を検査するための架台装置に関す
る。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a mount device for inspecting fuel assemblies, mainly for pressurized water reactors.
（従来の技術）
加圧水型原子炉に用いられるキヤンレスタイプ
の燃料集合体は平面ほぼ正方形をなした上部ノズ
ル、下部ノズル、両者の間に間隔をおいて配設さ
れた数段の格子状の支持格子、各支持格子の格子
空間に正方配列して挿通された多数の燃料棒およ
び燃料棒の間の一定位置に配置された十数本の案
内シンプル管等からなるが、一般には原子炉の運
転サイクル（約１年）ごとに検査を行い、異常の
ないものは再使用し、異常のあるものは交換する
ようにしているが、その検査に当たつては、各燃
料集合体を一たん貯蔵プール中のラツクに挿入し
て保管しておき、そのうちの一つずつを吊持具を
介してクレーンで吊下げ、これを吊下げたままの
状態で、細長い支持棒の下端に水中テレビを取付
けたポールタイプの検査治具を用いて、燃料集合
体の曲がりや歪みの発生具合、伸びの程度、色合
いや燃料棒間隔の変化ならびに傷の有無や程度な
ど主として外観をプール上において点検するよう
にしている。(Prior art) A canless type fuel assembly used in a pressurized water reactor consists of an upper nozzle, a lower nozzle, each having an approximately square plane, and several lattice-like grids arranged at intervals between the two. It consists of a support grid, a large number of fuel rods inserted in a square arrangement in the grid space of each support grid, and more than a dozen simple guide tubes placed at fixed positions between the fuel rods. Inspections are conducted every operating cycle (approximately one year), and those with no abnormalities are reused and those with abnormalities are replaced. Insert them into racks in the storage pool and store them, hang them one by one using a crane using hanging tools, and while they are still hanging, attach an underwater TV to the bottom end of the long and thin support rod. Using the attached pole-type inspection jig, we mainly inspect the external appearance of the fuel assembly, including the degree of bending and distortion, the degree of elongation, changes in color and fuel rod spacing, as well as the presence and extent of scratches. I have to.
（考案が解決しようとする問題点）
上記従来のやり方では、被検査物である燃料集
合体は水中に吊り下がつたままで不安定であり、
そして細長くて重量のある検査治具をプール上で
手操作しなければならないので、作業がやり難く
厄介で精度の良い観察をすることができない。(Problems to be solved by the invention) In the above conventional method, the fuel assembly, which is the object to be inspected, remains suspended in the water and is unstable.
Moreover, the long, slender and heavy inspection jig must be manually operated on the pool, making the work difficult and cumbersome and making it impossible to perform accurate observations.
そして、上記の検査は外観検査のみであり、こ
れ以外の燃料棒の外径や燃料棒間隙あるいは酸化
膜厚さなどの検査測定はプール上では行われてお
らず、これらの検査測定は原子力発電所から遠く
離れたホツトラボ（照射後試験施設）で行われて
いるが、輸送、再処理等の問題や結果のフイード
バツクの遅さならびに検査対象に制限があるなど
の難点がある。 The above inspection is only a visual inspection; other inspections and measurements such as the outer diameter of the fuel rods, fuel rod gaps, and oxide film thickness are not performed on the pool. The test is carried out in a hot laboratory (post-irradiation testing facility) far away from the site, but there are drawbacks such as problems with transportation and reprocessing, slow feedback of results, and restrictions on what can be tested.
そこで、この考案は検査時に燃料集合体を安定
して支持できると共に長い検査治具を手操作する
必要がなく、燃料棒の外観に限らず、外径や間
隙、酸化膜厚さなど各種の精度の良い検査が可能
で、しかも不要時には撤去の容易な架台装置を提
供することを目的とする。 Therefore, this invention can stably support the fuel assembly during inspection, eliminates the need to manually operate long inspection jigs, and is capable of measuring not only the external appearance of the fuel rod but also various precisions such as the outer diameter, gap, and oxide film thickness. The purpose of the present invention is to provide a mount device that enables good inspection of the data and is easy to remove when unnecessary.
（問題点を解決するための手段）
この考案は上記目的のもとに、所要広さの基台
の前側に一つの燃料集合体を上下できる間隔をお
いて一対の突出部分を設け、各突出部分上には支
柱を介してシリンダ部材により進退するクランプ
杆を対向させて配設し、基台の下側の前後両側部
には、貯蔵プール中の保管ラツク上に載置できる
大きさの脚板を上下に調整可能に取付ける一方、
基台の下面中央部両側にはそこに対応する保管ラ
ツクに挿入可能な所要数の位置決め用のピンをそ
れぞれ取付け、基台上には下部台板を横移動可能
に配設すると共に下部台板上には上部台板を前後
に移動可能に、かつリンク片を介して前方にばね
付勢して配設し、上記台板の一側には燃料集合体
の１スパン程度の高さのタワー部材を設けると共
にその内側に所要の検査器を載置する支持台を設
け、該支持台をタワー部材に沿つて昇降できるよ
うにしたことを特徴としている。(Means for solving the problem) Based on the above-mentioned purpose, this invention provides a pair of protrusions on the front side of a base having a required width at a distance that allows one fuel assembly to be raised and lowered, and each protrusion Clamp rods that move forward and backward with a cylinder member via supports are arranged facing each other on the top of the section, and on both front and rear sides of the underside of the base are leg plates large enough to be placed on storage racks in the storage pool. is installed so that it can be adjusted up and down, while
A required number of positioning pins that can be inserted into the corresponding storage racks are installed on both sides of the bottom center of the base, and a lower base plate is disposed on the base so that it can be moved laterally. An upper base plate is disposed on the top so that it can be moved back and forth and is biased forward by a spring through a link piece, and on one side of the base plate is a tower with a height of about one span of the fuel assembly. The present invention is characterized in that a member is provided, and a support table on which a required inspection device is placed is provided inside the member, and the support table can be moved up and down along the tower member.
（作用）
支持台上に目的とする検査に応じた検査器を取
付けた後、装置全体をクレーンで吊つて貯蔵プー
ル中に差し入れ、基台の下面中央部両側に取り付
けたピンをそれらに対応する保管ラツク中にそれ
ぞれ挿入しながら、前後両側の脚板をそれぞれ対
応する保管ラツク上に載置して、装置を複数の保
管ラツク上にセツトし、他の保管ラツクから検査
すべき燃料集合体をクレーンで吊り上げ移動させ
て、基台前部の二つの突出部分の間に位置させ、
先ず燃料集合体の下部ノズルまたは下方の支持格
子の部分をクランプ杆で掴持し、検査器を上、下
の台板もろ共横移動させめる一方、支持台をタワ
ー部材に沿つて適宜に昇降させて、燃料集合体の
１スパン範囲の検査を行い、次いで、クランプ杆
を解放して燃料集合体を１スパン分だけ下降さ
せ、再びクランプ杆で掴み、検査器を左右、上下
に移動させて同様の検査を行う。(Function) After installing the inspection device according to the intended inspection on the support base, the entire device is lifted by a crane and inserted into the storage pool, and the pins attached to both sides of the bottom center of the base are connected to the corresponding pins. While inserting the equipment into the storage racks, place the front and rear leg plates on the corresponding storage racks, set the equipment on multiple storage racks, and pick up the fuel assembly to be inspected from the other storage racks with a crane. Lift it up and move it to position it between the two protruding parts at the front of the base,
First, grasp the lower nozzle of the fuel assembly or the lower support grid part with the clamp rod, and move the inspection device laterally with both the upper and lower base plates, while raising and lowering the support base as appropriate along the tower member. Then, the clamp rod is released and the fuel assembly is lowered by one span, and then grasped with the clamp rod again and the inspection device is moved left and right and up and down. Perform similar tests.
このようにして、一つの燃料集合体のすべての
部分の検査が終れば、これをクレーンで移動させ
て元の保管ラツクに戻し、他の燃料集合体をクレ
ーンで装置上に持つて来て同様に検査する。 In this way, once all parts of one fuel assembly have been inspected, it is moved by a crane and returned to its original storage rack, and the other fuel assembly is brought onto the equipment using a crane and the same process is carried out. to be inspected.
（実施例）
図面参照の上この考案の実施例について説明す
れば、第１図において１は貯蔵プール中に一定間
隔で並設された筒状の保管ラツクの燃料の入つて
いない３×３個分の上にのるような広さの基台で
あつて、前側（図で左側）には第２図ロのように
燃料集合体ｎを自由に上下できるような間隔をお
いて前方に平行に突出する部分１ａ，１ａを備え
て平面横Ｆ字形をなしており、この左右の突出部
分１ａ，１ａ上にはそれぞれ所要高さの前後一対
の支柱２が立設され、各対の支柱２の上端の棚板
２ａ上には中央のシリンダ部材３と前後のガイド
杆３ａとで進退自在に支持された燃料集合体ｎよ
り幅の広いクランプ杆４が対向して配設され、横
長な基台１上には後述の下部スライド板を移動可
能に支持する前後一対の横レール５とその中間の
ラツク杆６が取付けられており、また、左右の突
出部分１ａ，１ａの下側およびそれらの後方に当
たる基台１の下側にはそれぞれ脚板７が配設さ
れ、これらの脚板７は第２図ロにみられるように
燃料集合体ｎを収容する保管ラツクＲの開口端を
塞ぐ大きさのもので、突出部分１ａ，１ａの前縁
および基台１の後縁両側に取付けられたねじ杆８
によつて上下に調節可能にかつねじ杆とは一しよ
に回転しないように連結されている。更に、前後
両側の脚板７の中間位置にはそこに対応する保管
ラツクＲ中に挿入されて基台１の位置決めをする
ための一対のピン９がそれぞれ下向きに取付けら
れている。(Embodiment) An embodiment of this invention will be described with reference to the drawings. In Fig. 1, 1 indicates 3 x 3 cylindrical storage racks that do not contain fuel and are arranged in parallel at regular intervals in a storage pool. It is a base that is wide enough to stand on the fuel assembly n, and the front side (left side in the figure) is spaced apart so that the fuel assembly n can be moved up and down freely as shown in Figure 2 (b). It has parallel projecting parts 1a, 1a, forming a horizontal F-shape in plan, and a pair of front and rear supports 2 of a required height are erected on the left and right projecting parts 1a, 1a, respectively. Clamp rods 4, which are wider than the fuel assembly n supported by the central cylinder member 3 and the front and rear guide rods 3a so as to be freely movable and retractable, are disposed facing each other on the shelf board 2a at the upper end of 2. A pair of front and rear horizontal rails 5 and an intermediate rack rod 6 are attached to the base 1 to movably support a lower slide plate, which will be described later. A leg plate 7 is provided on the lower side of the base 1 at the rear of the base 1, and as shown in FIG. The threaded rods 8 are attached to both the front edges of the protruding parts 1a and the rear edge of the base 1.
It can be adjusted up and down by the screw rod and is connected to the screw rod so as not to rotate together. Furthermore, a pair of pins 9 are attached downwardly to the intermediate positions of the front and rear leg plates 7 to be inserted into the corresponding storage racks R to position the base 1.
第１図および第２イにおける１０は基台１より
１回り小さなほぼ方形の下部台板であつて、下面
の前後両側部に取付けられたローラ１０ａが基台
１上の前後の横レール５に回転自在に係合してお
り、そして、一側部（図では右側）には減速装置
付のモータm1が配設され、そのモータ軸下端の
ピニオン１１が基台１上のラツク杆６にかみ合つ
ており、また、下部台板１０上には左右一対の縦
レール１２が設けられ、これらのレール１２に
は、下部台板１０上に配設され大きさがその半分
程度で横長な上部台板２０の下面に取付けられた
ローラ２０ａが転動自在に係合され、また、下部
台板１０の後方中央部には後向きの舌片１３ａを
備えたピン軸１３が植設され、その舌片１３ａに
は屈折自在なリンク片１４の一端が枢支され、リ
ンク片１４の他端は上部台板２０の後部中央部に
枢着され、このリンク片１４は下部台板１０との
間に張設されたコイルばね１５によつて、上部台
板２０が常時下部台板１０の前端に設けられたス
トツパ１６に当接するように前向きに付勢されて
いる。 10 in FIGS. 1 and 2A is a substantially rectangular lower base plate one size smaller than the base 1, and rollers 10a attached to the front and rear sides of the lower surface are connected to the front and rear horizontal rails 5 on the base 1. A motor m 1 with a reduction gear is disposed on one side (the right side in the figure), and a pinion 11 at the lower end of the motor shaft is connected to a rack rod 6 on the base 1. A pair of left and right vertical rails 12 are provided on the lower base plate 10, and these rails 12 have a horizontally elongated upper part disposed on the lower base plate 10 and about half the size of the vertical rails 12. A roller 20a attached to the lower surface of the base plate 20 is rotatably engaged, and a pin shaft 13 with a rearward-facing tongue piece 13a is implanted in the rear central part of the lower base plate 10. One end of a bendable link piece 14 is pivotally supported on the piece 13a, and the other end of the link piece 14 is pivotally attached to the rear central part of the upper base plate 20. The tensioned coil spring 15 biases the upper bed plate 20 forward so that it always comes into contact with a stopper 16 provided at the front end of the lower bed plate 10.
台板２０上には種々の検査器を取付けるための
アングル状の支持台２１が設けられると共に一側
（図では左側）には所要高さ（燃料集合体の支持
格子の間隔いわゆる１スパンより若干高い）のタ
ワー部材２２が設けられ、このタワー部材２２の
内側表面に沿つて一対のねじ杆２３が立設されて
いて、これらのねじ杆２３に上記支持台２１裏面
の一対のねじ駒２１ａが螺合されていて、ねじ杆
２３の正、逆の回転により支持台２１はタワー部
材２２に沿つて昇降するようになされており、そ
して、各ねじ杆２３の台板２０の下側に突出する
端部には伝動調車２３ａが設けられ、タワー部材
２２の後側に配設された減速装置付のモータm2
により駆動されるようになされている。 An angular support base 21 is provided on the base plate 20 for mounting various inspection devices, and on one side (the left side in the figure) the required height (the spacing between the support grids of the fuel assembly is slightly less than 1 span) is provided. A tower member 22 (high) is provided, and a pair of screw rods 23 are erected along the inner surface of the tower member 22, and a pair of screw pieces 21a on the back side of the support base 21 are attached to these screw rods 23. They are screwed together, and the support base 21 is moved up and down along the tower member 22 by forward and reverse rotation of the screw rods 23, and each screw rod 23 projects below the base plate 20. A transmission pulley 23a is provided at the end, and a motor m 2 with a speed reduction device is provided on the rear side of the tower member 22.
It is designed to be driven by.
２４はワイヤ２５で支持台２１の上端に連結さ
れたバランスウエイトであり、台板１０，２０上
のモータm1，m2はプール上のブリツジクレーン
において操作するようになされている。 24 is a balance weight connected to the upper end of the support base 21 by a wire 25, and motors m 1 and m 2 on the base plates 10 and 20 are operated by a bridge crane on the pool.
上記構成のもとにその使用に当たつては、支持
台２１にプール上において操作するようになされ
た所要の検査器Ａを第２図イのように取付け、し
かして装置全体をクレーンで吊つてプール中に差
し入れ、基台１下面の中央両側部に取付けた各対
のピン９を第２図ロのように対応する保管ラツク
Ｒに挿入して位置決めしながら、前後両側の脚板
７をそれぞれ対応する保管ラツクＲの開口端上に
のせ、装置を所要位置にセツトする。 When using the above configuration, the required inspection device A, which is designed to be operated on the pool, is attached to the support stand 21 as shown in Fig. 2A, and the entire device is lifted with a crane. Insert each pair of pins 9 attached to both sides of the center of the lower surface of the base 1 into the corresponding storage rack R as shown in Fig. 2 (B) and while positioning, insert the leg plates 7 on both the front and rear sides into the pool. Place it on the open end of the corresponding storage rack R and set the device in the desired position.
その際、基台１の隅部に取付けたねじ杆８のい
ずれかを取扱い工具によつて微細に調整すること
により装置の水平が維持される。 At this time, the level of the apparatus is maintained by finely adjusting one of the screw rods 8 attached to the corners of the base 1 using a handling tool.
次いで、検査すべき燃料集合体ｎをこれが収容
されている保管ラツクからクレーンにより吊り上
げ移動させて、基台１の前部両側の突出部分１
ａ，１ａの間に位置させ、そして、左右の支柱２
上のシリンダ部材３を操作してクランプ杆４を前
進させ、燃料の下部ノズルまたは下方のスペーサ
の部分を両側からつかんで集合体１を安定させ、
その後において下部台板１０上のモータm1およ
び上部台板２０上のモータm2を適宜正転または
逆転させて、支持台２１上の検査器Ａを下部台板
１０もろ共基台１の横レール５に沿つて左右に横
移動させ、また、タワー部材２２表面のねじ杆２
３に沿つて昇降させ、燃料集合体ｎの下方１スパ
ン範囲の各種検査を行い、当該部分の検査が終れ
ば、クランプ杆４を後退させると共に燃料集合体
ｎを１スパンだけ下降させ、再びクランプ杆４を
前進させて次位の支持格子をつかんで集合体を安
定させ、検査器Ａを上記と同様に左右、上下に移
動させて次の１スパン範囲の検査を行う。 Next, the fuel assembly n to be inspected is lifted from the storage rack in which it is stored by a crane and moved to the protruding portions 1 on both sides of the front part of the base 1.
a, 1a, and the left and right pillars 2
Operate the upper cylinder member 3 to advance the clamp rod 4 and stabilize the assembly 1 by grasping the lower fuel nozzle or the lower spacer part from both sides,
After that, the motor m 1 on the lower base plate 10 and the motor m 2 on the upper base plate 20 are rotated forward or reverse as appropriate, and the inspection device A on the support base 21 is moved to the side of both the lower base plate 10 and the base 1. The screw rod 2 on the surface of the tower member 22 is moved horizontally along the rail 5, and
3 and perform various inspections within one span below the fuel assembly n. When the inspection of the relevant part is completed, the clamping rod 4 is moved back, the fuel assembly n is lowered by one span, and the fuel assembly n is clamped again. The rod 4 is advanced to grasp the next support grid to stabilize the assembly, and the inspection device A is moved left and right and up and down in the same manner as above to inspect the next one span range.
このような操作を繰り返すことにより燃料集合
体ｎ全体の検査を支障なく行うことができる。 By repeating such operations, the entire fuel assembly n can be inspected without any trouble.
その間において、何らかの異常が生じ検査器Ａ
が動かなくなつた際には、取扱い工具によつてリ
ンク片１４を点線のように折り曲げて上部台板２
０と共に後退させ、燃料集合体ｎならびに装置の
損傷を防ぐ。 During that time, some abnormality occurred and the tester A
If the upper base plate 2 stops moving, use a handling tool to bend the link piece 14 as shown in the dotted line.
0 to prevent damage to the fuel assembly n and equipment.
また、一つの燃料集合体の検査が終れば、それ
をもとのラツクＲ中に収容し、次の集合体をクレ
ーンで吊つて移動させ本装置のセツト部分まで持
つて来て再びクランプする。 When the inspection of one fuel assembly is completed, it is stored in the original rack R, and the next assembly is lifted and moved by a crane, brought to the set part of the apparatus, and clamped again.
なお、上述の例では基台１を３×３個分のラツ
クの上にのる広さのものとして示したが、燃料集
合体ｎを安定して支持できれば、それより広くて
もまたは狭くても差支えない。 In the above example, the base 1 is shown to be wide enough to fit on 3x3 racks, but it can be wider or narrower as long as it can stably support the fuel assembly n. There is no problem.
（考案の効果）
以上のようにこの考案によれば、検査時に燃料
集合体をつかんで安定させることができ、そし
て、従来のように細長な検査治具をプール上から
手操作する必要がなく、検査器を支持台に取付け
て遠隔操作すればよいので、作業がやり易く精度
高く検査をすることができ、また、検査器を適宜
に交換することにより種々の検査すなわち、燃料
棒外径測定、間隙測定、酸化膜厚さ測定、燃料棒
曲り測定、支持格子バネ定数測定、集合体内部外
観検査、燃料棒表面の渦流探傷、超音波による肉
厚測定などが可能であり、しかも大型にならず小
型コンパクトなもので、保管ラツクに対する着脱
が容易で取扱い易いなどの利点を有する。(Effects of the invention) As described above, according to this invention, the fuel assembly can be gripped and stabilized during inspection, and there is no need to manually operate the elongated inspection jig from above the pool as in the past. The inspection device can be mounted on a support stand and controlled remotely, making it easy to perform inspections with high precision.In addition, by replacing the inspection device as appropriate, various inspections can be performed, such as measuring the outer diameter of fuel rods. , gap measurement, oxide film thickness measurement, fuel rod bending measurement, support grid spring constant measurement, assembly internal appearance inspection, fuel rod surface eddy current flaw detection, ultrasonic wall thickness measurement, etc. It has the advantage of being small and compact, easy to attach and detach from a storage rack, and easy to handle.
第１図はこの考案の実施例の斜視図。第２図イ
は基台部分の斜視図。同図ロは上、下の台板部分
の斜視図。第３図はこの考案の平面図。
図中、１……基台、２……支柱、３……シリン
ダ部材、４……クランプ杆、５……横レール、６
……ラツク杆、７……脚板、９……ピン、１０…
…下部台板、１１……ピニオン、１４……リンク
片、２０……上部台板、２１……支持台、２２…
…タワー部材、２３……ねじ杆、m1，m2……モ
ータ。
FIG. 1 is a perspective view of an embodiment of this invention. Figure 2A is a perspective view of the base. Figure B is a perspective view of the upper and lower base plate parts. Figure 3 is a plan view of this idea. In the figure, 1...Base, 2...Column, 3...Cylinder member, 4...Clamp rod, 5...Horizontal rail, 6
...Rack rod, 7...leg plate, 9...pin, 10...
...Lower base plate, 11... Pinion, 14... Link piece, 20... Upper base plate, 21... Support stand, 22...
... Tower member, 23 ... Screw rod, m 1 , m 2 ... Motor.
Claims (1)
を上下できる間隔をおいて一対の突出部分１ａを
設け、各突出部分１ａ上には支柱２を介してシリ
ンダ部材３により進退するクランプ杆４を対向さ
せて配設し、基台１の下側の前後両側部には、貯
蔵プール中の保管ラツク上に載置できる大きさの
脚板７を上下に調整可能に取付ける一方、基台１
の下面中央部両側にはそこに対応する保管ラツク
に挿入可能な所要数の位置決め用のピン９をそれ
ぞれ取付け、基台１上には下部台板１０を横移動
可能に配設すると共に下部台板１０上には上部台
板２０を前後に移動可能に、かつリンク片を介し
て前方にばね付勢して配設し、上部台板２０の一
側には燃料集合体ｎの１スパン程度の高さのタワ
ー部材２２を設けると共にその内側に所要の検査
器Ａを載置する支持台２１を設け、該支持台２１
をタワー部材２２に沿つて昇降できるようにした
ことを特徴とする燃料集合体の検査用架台装置。 One fuel assembly n is placed on the front side of the base 1 with the required width.
A pair of protruding parts 1a are provided at intervals that allow for the vertical movement of the base 1. On each protruding part 1a, clamp rods 4 which are moved forward and backward by a cylinder member 3 via pillars 2 are disposed facing each other. Leg plates 7 of a size that can be placed on storage racks in a storage pool are attached to the front and rear sides of the storage pool so that they can be adjusted up and down.
A required number of positioning pins 9 that can be inserted into the corresponding storage racks are installed on both sides of the center of the lower surface, and a lower base plate 10 is disposed on the base 1 so as to be movable laterally. An upper base plate 20 is disposed on the plate 10 so as to be movable back and forth and biased forward by a spring through a link piece, and on one side of the upper base plate 20 is a fuel assembly n of about one span. A tower member 22 with a height of
A mount device for inspecting a fuel assembly, characterized in that it can be moved up and down along a tower member 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985038338U JPH0321513Y2 (en) | 1985-03-19 | 1985-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985038338U JPH0321513Y2 (en) | 1985-03-19 | 1985-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61154594U JPS61154594U (en) | 1986-09-25 |
| JPH0321513Y2 true JPH0321513Y2 (en) | 1991-05-10 |
Family
ID=30545251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985038338U Expired JPH0321513Y2 (en) | 1985-03-19 | 1985-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321513Y2 (en) |
-
1985
- 1985-03-19 JP JP1985038338U patent/JPH0321513Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61154594U (en) | 1986-09-25 |
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