JPH0774721B2 - Non-contact measuring device for fuel assembly dimensions - Google Patents
Non-contact measuring device for fuel assembly dimensionsInfo
- Publication number
- JPH0774721B2 JPH0774721B2 JP1078031A JP7803189A JPH0774721B2 JP H0774721 B2 JPH0774721 B2 JP H0774721B2 JP 1078031 A JP1078031 A JP 1078031A JP 7803189 A JP7803189 A JP 7803189A JP H0774721 B2 JPH0774721 B2 JP H0774721B2
- Authority
- JP
- Japan
- Prior art keywords
- camera
- assembly
- measurement
- fuel assembly
- transmission case
- 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 - Fee Related
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
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は燃料集合体主として円筒形燃料集合体の燃料
棒間隔、長さなどの寸法を測定するための装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring dimensions such as a fuel rod interval and a length of a fuel assembly mainly a cylindrical fuel assembly.
（従来の技術とその問題点） 新型転換炉用の燃料集合体の一種である円筒形燃料集合
体は直径が13〜15mmで高さが約4mの燃料棒が28〜36本；
円筒状に配置され、それらの上下端は端栓を介して上下
のタンプレートに装着され、途中は数段の円形格子状の
スペーサによって支持されているが、その定期検査に当
たっては、炉心から燃料集合体を取出して貯蔵プール内
の架台をセットし、一般には差動トランス式の電気マイ
クロメータを用い、その測定ヘッドを燃料棒の表面に接
触させて各燃料棒の直径又は棒間隔を測定するようにし
ている。(Prior art and its problems) A cylindrical fuel assembly, which is a type of fuel assembly for a new converter, has a diameter of 13 to 15 mm and a height of about 4 m is 28 to 36 fuel rods;
They are arranged in a cylindrical shape, the upper and lower ends of which are attached to the upper and lower tank plates through end plugs, and are supported by spacers in a circular grid pattern of several stages in the middle. The assembly is taken out, the pedestal in the storage pool is set, and generally the differential transformer type electric micrometer is used, and the measurement head is brought into contact with the surface of the fuel rod to measure the diameter or rod interval of each fuel rod. I am trying.
しかし、この測定手段では電気マイクロメータをプール
内においていちいち燃料棒に接触させなければならず、
その保持機構や操作手段が複雑になり、トラブルが生じ
易く、又この測定では燃料棒の長さなどを測ることがで
きない。However, with this measuring means, the electric micrometer must be brought into contact with the fuel rods in the pool,
The holding mechanism and operating means are complicated, and troubles are likely to occur, and the length of the fuel rod cannot be measured by this measurement.
一方、沸騰水型や加圧水型など軽水炉用の断面四角形の
燃料集合体については、テレビカメラを用いて非接触式
に測定することが行われているが、この場合には集合体
の四側部を一つの平面としてとらえ、その平面内で各部
の寸法を測定するようになっているため、これをそのま
ま円筒形の集合体に利用したのでは測定結果が不正確に
なり、そして、この手段では次の側面を測定する際、集
合体をいちいちクレーンで吊り上げて回転しなければな
らず、回転角度の調整が甚だ面倒である。そこで、この
発明は円筒形（又は四角以上の多角形）の燃料集合体に
ついて、集合体自体及び燃料棒の縦、横方向の寸法なら
びに外観を非接触式の手段により容易に精度よく検査で
きる測定装置を提供することを目的とする。On the other hand, for fuel assemblies with a rectangular cross section for light water reactors such as boiling water type and pressurized water type, non-contact measurement is performed using a TV camera, but in this case, the four side parts of the assembly are used. Is regarded as one plane, and the dimensions of each part are measured in that plane, so if this is used as it is for a cylindrical assembly, the measurement results will be inaccurate, and with this means When measuring the next side, the assembly must be lifted and rotated with a crane, and adjusting the rotation angle is very troublesome. In view of this, the present invention provides a cylindrical (or polygonal shape of square or more) fuel assembly that can be easily and accurately inspected in vertical and horizontal dimensions and appearance of the assembly itself and fuel rods by non-contact means. The purpose is to provide a device.
（問題点を解決するための手段） 上記目的達成のためにこの発明は、燃料集合体の寸法の
非接触式測定装置として、燃料集合体の貯蔵プール内に
基台を配設し、この基台には貯蔵プールから突出する直
立フレームと燃料集合体の保持台とを両側に対向させて
設け、直立フレームの前面にはスライド台を介し少なく
とも寸法計測用のテレビカメラを昇降可能に装着すると
共に寸法計測用のテレビカメラはスライド台に対し水平
移動可能に装着し、上記保持台上には伝動ケースを設け
る一方、直立フレームの中央部には中間架台を伝動ケー
ス上に張出させて設け、この中間架台と伝動ケースとに
検査対象集合体の上下端を回動可能に支持するようにな
し、伝動ケースの上面と中間架台の一側部には、計測用
のモニタテレビの水平端子マーカの較正用スケールと検
査対象集合体の長さ測定用の縦目盛を施した上下の定規
を、一定の高さ間隔をおくと共に寸法計測用のテレビカ
メラから検査対象集合体までの距離と同じ距離位置に取
付けて調査装置となし、 貯蔵プールサイド上には、少なくとも上記テレビカメラ
の映像信号を受信する計測用のモニタテレビを備えた操
作盤と、その計測データを処理するデータ処理盤ならび
にテレビカメラの移動と検査対象集合体の回動を制御す
る制御盤を配設したことを特徴としている。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a non-contact measuring apparatus for measuring the size of a fuel assembly, in which a base is arranged in a storage pool of the fuel assembly, An upright frame protruding from the storage pool and a fuel assembly holding table are provided on both sides of the table so that they face each other.At the front of the upright frame, at least a TV camera for dimension measurement is mounted so that it can be moved up and down. A TV camera for dimension measurement is mounted so that it can move horizontally with respect to a slide table, and a transmission case is provided on the holding table, while an intermediate frame is provided at the center of the upright frame so as to extend above the transmission case. The upper and lower ends of the assembly to be inspected are rotatably supported by the intermediate pedestal and the transmission case, and the upper terminal of the transmission case and one side of the intermediate pedestal are provided with horizontal terminal markers of a monitor TV for measurement. calibration Scales and upper and lower rulers with vertical scales for measuring the length of the assembly to be inspected are placed at the same distance as the distance from the TV camera for dimension measurement to the assembly to be inspected with a certain height interval. Installed as a survey device, on the storage pool side, an operation panel equipped with at least a monitor TV for measurement that receives the video signal of the TV camera, a data processing panel that processes the measurement data, and the movement of the TV camera And a control panel for controlling the rotation of the inspection object assembly.
（実施例） 以下、図面を参照してこの発明の実施例について説明す
れば、第１図においてＡは貯蔵プール内に配設された燃
料集合体の調査装置であって、その基台１の両側には枠
状の直立フレーム２と燃料集合体の保持台３が対向して
設けられ、直立フレーム２はプールサイドからプール上
に張出した上部架台４を貫通して上方して伸びており、
この直立フレーム２の前面には左右一対の縦レール2aが
架設され、これらの縦レール2aには二つのテレビカメラ
5a,5bを装着したスライド台５が摺動可能に保持されて
おり、スライド台５は裏側においてチェーンなどの駆動
部材６に連結され上部架台４上に配設されたモータＭの
正転、逆転により縦レール2aに沿って昇降するようにな
されている。(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, A is a fuel assembly inspection apparatus arranged in a storage pool, of which a base 1 is installed. On both sides, a frame-shaped upright frame 2 and a fuel assembly holding base 3 are provided so as to face each other, and the upright frame 2 extends upward through a top pedestal 4 that extends from the poolside onto the pool.
A pair of left and right vertical rails 2a are installed on the front surface of the upright frame 2, and two TV cameras are mounted on these vertical rails 2a.
A slide base 5 having 5a and 5b mounted thereon is slidably held, and the slide base 5 is connected to a drive member 6 such as a chain on the back side thereof, and a normal rotation and a reverse rotation of a motor M arranged on an upper mount 4 are carried out. By this, it is configured to go up and down along the vertical rail 2a.
上記二つのテレビカメラ5a,5bのうち、一方のカメラ5a
は各種計測用の白黒のテレビカメラで、ラックピニオン
などの水平差動部材5c（これには水平位置検出用のエン
コーダが付設されている）によってスライド台５に対し
横移動可能に装着され、他方のカメラ5bは外観検査用で
カラーのテレビカメラになっていて（これは必ずしもカ
ラーでなくてもよく、また、これは用いない場合もあ
る）、スライド台５に固定的に装着されており、これら
のテレビカメラ5a,5bで作られた映像信号はプールサイ
ド上に配設された操作盤Ｂの計測用のモニタテレビB1又
は外観検査用のテレビB2に受信するようになされてい
る。One of the above two TV cameras 5a and 5b, 5a
Is a black-and-white television camera for various measurements, which is horizontally mounted on the slide table 5 by a horizontal differential member 5c such as a rack and pinion (which is provided with an encoder for horizontal position detection). The camera 5b of is a color TV camera for visual inspection (this may not necessarily be the color, and may not be used), and is fixedly mounted on the slide base 5. The video signals generated by these TV cameras 5a and 5b are received by the monitor TV B 1 for measurement of the operation panel B arranged on the poolside or the TV B 2 for visual inspection.
一方、燃料集合体の保持台３上にはステッピングモータ
を内蔵した伝動ケース７が設けられ、また、伝動ケース
７の上方には直立フレーム２の中央部から前方に張出す
ように中間架台８が設けられ、両者の間に検査すべき燃
料集合体10をクレーンによりセットし、その下部タイプ
レートの部分を伝動ケース７内のステッピングモータで
作動される回転台に支持させると共に上部タイプレート
の部分を中間架台８上の軸受部材8aにより回転可能に支
持するようになされている。On the other hand, a transmission case 7 having a built-in stepping motor is provided on the fuel assembly holding base 3, and an intermediate mount 8 is provided above the transmission case 7 so as to extend forward from the central portion of the upright frame 2. A fuel assembly 10 to be inspected is set between the two by a crane, and a lower tie plate portion thereof is supported by a turntable operated by a stepping motor in the transmission case 7 and an upper tie plate portion is set. A bearing member 8a on the intermediate mount 8 is rotatably supported.
また、伝動ケース７の上面と中間架台８の一側部（図で
は左側部）には、計測用テレビB1に表示される水平電子
マーカｍ（第２図イ、ハ）の較正用スケールS1と集合体
の長さ測定用の縦目盛S2を施した上下の定規9a,9bが計
測用テレビカメラ5aと対象物（燃料集合体）間の距離と
同じ距離位置に取付けられており、かつ上下の縦目盛S2
の間隔（長さ）l0は一定になされている。In addition, on the upper surface of the transmission case 7 and one side portion (the left side portion in the figure) of the intermediate pedestal 8, the scale S for calibration of the horizontal electronic marker m (FIG. 2A, C) displayed on the measurement TV B 1 is displayed. 1 and the upper and lower rulers 9a subjected to vertical scale S 2 for the length measurement of the aggregate, 9b are attached to the same distance position as the distance between the measuring TV camera 5a and the object (the fuel assembly), And upper and lower vertical scale S 2
The interval (length) l 0 is constant.
更に、プールサイド上には上記操作盤Ｂに隣接して操作
盤Ｂで得られた測定結果を処理しかつアウトプットする
データ処理盤Ｃ、ならびに駆動部材６、水平作動部材5
c、ステッピングモータの回転などを制御する制御盤Ｄ
が配設されている。Further, on the pool side, a data processing panel C adjacent to the operation panel B for processing and outputting the measurement results obtained by the operation panel B, the driving member 6, and the horizontal operation member 5
c, control board D for controlling rotation of stepping motor
Is provided.
次に上述の装置を用いての測定のやり方を二、三の例に
ついて説明する。Next, a few examples of measurement methods using the above-mentioned device will be described.
（１） 燃料棒間隔の測定 イ．先ず、測定すべき燃料集合体10を伝動ケース７と中
間架台８との間に上記したようにしてセットする。(1) Measurement of fuel rod spacing a. First, the fuel assembly 10 to be measured is set between the transmission case 7 and the intermediate mount 8 as described above.
ロ．次に計測テレビカメラ5aの撮影モードを望遠とし、
制御盤Ｄよりの指令で水平作動部材5c及び駆動部材６を
作動してカメラ5aを上下、左右に移動させ、集合体10の
側部に設けた上又は下の較正用スケールS1にレンズを向
けて、そのスケールS1を第２図イのように操作盤Ｂのモ
ニタテレビB1に写し出す、 ハ．そして、操作盤Ｂのオン−オフスイッチにより自在
にモニタテレビB1に表示される水平電子マーカｍを操作
盤Ｂ上にダイヤルを回してスケールS1の一定寸法に合う
ように較正する、 イ図ではスケールS1の５目盛に合せられており、その際
のダイヤルを回動させた目盛数を確認しておく。（例え
ば５目盛） ニ．次にカメラ5aをその望遠モードと焦点距離をそのま
ま維持して、第２図ロのように集合体10の正面中央（高
さは任意）に合せ、最外周の二つの燃料棒n1,n2（２図
ニ）を同図ハのようにモニタテレビB1の画面に写す。B. Next, set the shooting mode of the measurement TV camera 5a to telephoto,
In response to a command from the control panel D, the horizontal actuating member 5c and the driving member 6 are actuated to move the camera 5a up, down, left and right, and the lens is mounted on the upper or lower calibration scale S 1 provided on the side of the assembly 10. directed, Projects the scale S 1 to the monitor television B 1 control panel B as shown in Figure 2 b, c. Then, the horizontal electronic marker m freely displayed on the monitor TV B 1 by the on-off switch of the operation panel B is calibrated by turning the dial on the operation panel B so that the scale S 1 has a fixed size. Then, it is aligned with the 5 scales of the scale S 1 , and check the number of scales by turning the dial at that time. (For example, 5 scales) d. Next, while keeping the telephoto mode and the focal length as they are, the camera 5a is aligned with the front center of the assembly 10 (the height is arbitrary) as shown in FIG. 2B, and the two outermost fuel rods n 1 , n 2 Copy (Fig. 2D) on the screen of monitor TV B 1 as shown in Fig. 2C.
ホ．そして、左側の燃料棒n1の右端に水平電子マーカｍ
の左端m0を合せる。この場合、画面上に常に出ている垂
直基線g2を利用し、燃料棒n1の右端と水平端子マーカｍ
の左端m0を基線g2に合せるようにすると作業がやり易
い。E. The horizontal electronic marker m is attached to the right end of the left fuel rod n 1.
Match the left edge m 0 of. In this case, the vertical base line g 2 that is always on the screen is used, and the right end of the fuel rod n 1 and the horizontal terminal marker m are used.
It is easier to work by aligning the left end m 0 of the with the base line g 2 .
ヘ．次いで、水平電子マーカｍの長さを水平方向に伸縮
させながら、その右端を隣りの燃料棒n2の左縁に一致さ
せ、その際のダイヤルの回動目盛数を読み、これが例え
ば3.5とすれば、間隔は3.5mmとなり、これを記録する。F. Next, the length of the horizontal electronic marker m is expanded and contracted in the horizontal direction, the right end of the horizontal electronic marker m is made to coincide with the left edge of the adjacent fuel rod n 2 , and the number of rotation scales of the dial at that time is read. For example, the distance is 3.5 mm, and record this.
ト．その後、伝動ケース７中のステッピングモータを駆
動して集合体10を一定角度回転させ、今度は燃料棒n2と
n3の間を測るというようにして順次に間隔を測定する。G. After that, the stepping motor in the transmission case 7 is driven to rotate the assembly 10 by a certain angle, and this time the fuel rod n 2 and
The intervals are measured sequentially, such as measuring between n 3 .
（２） 集合体全長の測定 この場合にはカメラ5aの撮影モードは広角にして焦点合
せを行う。(2) Measurement of total length of assembly In this case, the shooting mode of the camera 5a is set to wide angle for focusing.
イ．計測用カメラ5aを集合体10の上部タイプレートの上
端に向けて、これを第３図イのように計測用のモニタテ
レビB1に写し、カメラ5aを上下に微動させて上部タイプ
レートの上端を画面に常に出ている十字ラインのうちの
水平基線g1に一致させ、カメラ5aの上下位置を固定す
る。I. Toward the measurement camera 5a at the upper end of the upper tie plate of the assembly 10, which in duplicate to the monitor television B 1 for measurement as shown in Figure 3 b, the upper end of the upper tie plate by fine movement of the camera 5a up and down Is aligned with the horizontal base line g 1 of the cross lines that are constantly displayed on the screen, and the vertical position of the camera 5a is fixed.
ロ．カメラ5aを上記のように設定した状態で、集合体10
の左側に設けた上定規9aを縦目盛S2までカメラ5aを水平
移動させ、その状態を第３図ロのように計測用モニタテ
レビS1に写し出し、上定規9aの下端からの縦目盛S2の読
み（例えばl1）をデータ処理盤Ｃに記憶させる。B. With the camera 5a set as described above, the aggregate 10
The upper ruler 9a provided on the left side so the camera 5a to vertically scale S 2 is horizontally moved in, Projected its state measurement monitor TV S 1 as shown in FIG. 3 (b), the vertical scale S from the lower end of the upper ruler 9a The reading of 2 (for example, l 1 ) is stored in the data processing board C.
ハ．次いで、計測用カメラ5aを駆動部材６により下降さ
せ、第３図ハのように集合体の下部タイプレートの下端
が、モニタテレビB1の画面上の水平基線g1に一致するよ
うにして、カメラ5aの上下位置を固定する。C. Next, the measuring camera 5a is lowered by the drive member 6 so that the lower end of the lower tie plate of the assembly coincides with the horizontal base line g 1 on the screen of the monitor TV B 1 as shown in FIG. Fix the vertical position of the camera 5a.
ニ．カメラ5aをこのように設定した状態で水平作動部材
5cにより水平移動させ、今度は下定規9bの縦目盛S2を第
３図ニのようにモニタテレビS1に写し出し、下定規9bの
上端からの縦目盛S2の読み（例えばl2）を記憶させる。D. With the camera 5a set in this way, the horizontal operation member
Move horizontally by 5c, this time display the vertical scale S 2 of the lower ruler 9b on the monitor TV S 1 as shown in FIG. 3, and read the vertical scale S 2 from the upper end of the lower ruler 9b (for example, l 2 ). Remember.
ホ．かくて、上下の定規9a,9bの間隔は予めl0と設定さ
れているので、集合体10の全長ｌは第３図ホにみられる
ようにｌ＝l0＋l1＋l2となる。この場合、縦目盛S2を表
示する定規は上下に分離しないで１本の長いものとして
もよい。E. Thus, since the interval between the upper and lower rulers 9a and 9b is set to l 0 in advance, the total length l of the aggregate 10 is l = l 0 + l 1 + l 2 as seen in FIG. In this case, the ruler displaying the vertical scale S 2 may be one long one without being vertically separated.
（３） 重合体の外径測定 イ．外径測定前の集合体のセット状態は第４図イのよう
になっているので、集合体10の最大径を測定するため
に、制御盤Ｄによりステッピングモータを始動して集合
体全体を360゜/32だけ回転して同図ロのように四方の燃
料棒ｎをｘ軸、ｙ軸上に一致させる。(3) Measurement of polymer outer diameter a. Since the set state of the aggregate before measuring the outer diameter is as shown in FIG. 4 (a), in order to measure the maximum diameter of the aggregate 10, the control panel D starts the stepping motor to set the entire aggregate to 360 °. Rotate by ° / 32 to align the four fuel rods n on the x and y axes as shown in Fig.
ロ．計測用カメラ5aを集合体10の第１スパン（上部タイ
プレートと最上段スペーサの間）中央に位置させる。B. The measuring camera 5a is positioned at the center of the first span (between the upper tie plate and the uppermost spacer) of the assembly 10.
ハ．次にカメラ5aに同図ハの実線のように集合体10の左
端に水平移動させる。このときの撮影モードは望遠で焦
点合せを行う。C. Next, the camera 5a is horizontally moved to the left end of the aggregate 10 as shown by the solid line in FIG. The shooting mode at this time is telephoto focusing.
ニ．この撮影モードで、モニタテレビB1に写し出された
画面において、同図ニのように前述の垂直基線g2を集合
体10の最左端に燃料棒端縁に合せ、その際、水平作動部
材5cに付設されている水平位置検出器（エンコーダ）の
位置情報を自動的に記憶させる。D. In this shooting mode, on the screen projected on the monitor TV B 1 , the vertical base line g 2 is aligned with the fuel rod end edge at the leftmost end of the assembly 10 as shown in FIG. The position information of the horizontal position detector (encoder) attached to is automatically stored.
ホ．次にカメラ5aをハ図点線のように水平移動させ、モ
ニタテレビB1の画面において電子マーカの左端m0（第２
図ハ）を最右端の燃料棒端縁に合せ、その際の水平作動
部材5cの水平位置検出器の位置情報を自動的に記憶させ
る。E. Next, the camera 5a is horizontally moved as shown by the dotted line in the figure, and the left end m 0 (second screen) of the electronic marker is displayed on the screen of the monitor TV B 1 .
(C) is aligned with the rightmost fuel rod edge, and the position information of the horizontal position detector of the horizontal actuating member 5c at that time is automatically stored.
ヘ．上記ニとホのカメラ5aの移動距離を自動的に算出
し、第４図ロにおける外径ｄとする。F. The moving distance of the camera 5a between D and E is automatically calculated and set as the outer diameter d in FIG.
その他、集合体の曲りの状態や上下のスペーサの間隔な
どを測定することができる。In addition, it is possible to measure the bending state of the assembly, the distance between the upper and lower spacers, and the like.
一方、燃料集合体10の使用による色合の変化、小物部品
の脱落の有無、変形の状態、水垢の付着状態などは、外
観検査用のテレビカメラ5aとそのモニタテレビB2により
検出される。On the other hand, changes in shade by the use of the fuel assembly 10, the presence or absence of separation of small parts, the deformation of the state, such as state of adhesion of water stain is detected television camera 5a for appearance inspection and by its monitor television B 2.
なお、この発明は円筒形燃料集合体に限らず四角以上の
多角形の燃料集合体、例えば六角形の高速増殖炉用の燃
料集合体の検査についても適用することができる。The present invention can be applied not only to the cylindrical fuel assembly but also to the inspection of a polygonal fuel assembly having a square shape or more, for example, a hexagonal fuel assembly for a fast breeder reactor.
（発明の効果） この発明は燃料集合体の寸法の非接触式測定装置とし
て、上述のように構成されているので、燃料集合体の定
期検査に当たり、従来、計測の困難であった円筒形又は
四角以上の多角形の燃料集合体の燃料棒間隔，全体の長
さおよび直径などの寸法を非接触式の測定手段により容
易に精度よく測定することができ，しかも、多くのギヤ
部材やロッド部材，レバー部材およびカム部材などによ
る複雑な機構を必要とせず、構成が甚だ簡単になり、取
扱い易くて故障を招かず、メンテナンスもやり易く、原
子炉の安全管理に役立つなどの利点を備えている。(Effects of the Invention) Since the present invention is configured as described above as a non-contact type measuring apparatus for measuring the size of a fuel assembly, it is difficult to measure the cylindrical shape or It is possible to easily and accurately measure the dimensions such as the fuel rod spacing, the total length and the diameter of a polygonal fuel assembly of a quadrangle or more by a non-contact type measuring means, and many gear members and rod members. ， It does not require complicated mechanism such as lever member and cam member, the structure is very simple, it is easy to handle, it does not cause trouble, it is easy to maintain, and it has advantages such as useful for safety management of nuclear reactor. .
第１図はこの発明の実施例の斜視図。 第２図イ、ロ、ハ、ニは円筒形燃料集合体の燃料棒の間
隔を測定する順序を示す説明図。 第３図イ、ロ、ハ、ニは同じ燃料集合体の全長を測定す
る順序を示す説明図。 第３図ホは全長の測定結果を示す正面図。 第４図イ、ロ、ハ、ニ、ホは集合体の外径を測定する順
序を示す説明図。 図中、１……基台、２……直立フレーム、 2a……縦レール、３……保持台 ４……上部架台、５……スライド台 5a……計測用テレビカメラ、 5b……外観検査用テレビカメラ、 ６……駆動部材、７……伝動ケース、 ８……中間架台、 9a,9b……定規、Ａ……調査装置、 Ｂ……操作盤、 B1……計測用モニタテレビ、 Ｃ……データ処理盤、Ｄ……制御盤、FIG. 1 is a perspective view of an embodiment of the present invention. FIG. 2A, 2B, 2C, 2D, and 2D are explanatory views showing the order of measuring the distance between the fuel rods of the cylindrical fuel assembly. 3A, 3B, 3C and 3D are explanatory views showing the order of measuring the entire length of the same fuel assembly. FIG. 3E is a front view showing the measurement result of the entire length. 4A, 4B, 4C, 4D, 4E, and 4F are explanatory views showing the order of measuring the outer diameter of the aggregate. In the figure, 1 ... Base, 2 ... Upright frame, 2a ... Vertical rail, 3 ... Holding stand, 4 ... Top stand, 5 ... Slide stand, 5a ... Measuring TV camera, 5b ... Appearance inspection use television camera, 6 ...... driving member, 7 ...... transmission case, 8 ...... intermediate frame, 9a, 9b ...... ruler, A ...... survey device, B ...... pendant, B 1 ...... measuring TV monitor, C: data processing board, D: control board,
Claims (1)
し、この基台には貯蔵プールから突出する直立フレーム
と燃料集合体の保持台とを両側に対向させて設け、直立
フレームの前面にはスライド台を介し少なくとも寸法計
測用のテレビカメラを昇降可能に装着すると共に寸法計
測用のテレビカメラはスライド台に対し水平移動可能に
装着し、上記保持台上には伝動ケースを設ける一方、直
立フレームの中央部には中間架台を伝動ケース上に張出
させて設け、この中間架台と伝動ケースとに検査対象集
合体の上下端を回動可能に支持するようになし、伝動ケ
ースの上面と中間架台の一側部には、計測用のモニタテ
レビの水平電子マーカの較正用スケールと検査対象集合
体の長さ測定用の縦目盛を施した上下の定規を、一定の
高さ間隔におくと共に寸法計測用のテレビカメラから検
査対象集合体までの距離と同じ距離位置に取付けて調査
装置となし、 貯蔵プールサイド上には、少なくとも上記テレビカメラ
の映像信号を受信する計測用のモニタテレビを備えた操
作盤と、その計測データを処理するデータ処理盤ならび
にテレビカメラの移動と検査対象集合体の回動を制御す
る制御盤を配設したことを特徴とする燃料集合体の寸法
の非接触式測定装置。1. A base in a storage pool of a fuel assembly is provided, and an upright frame protruding from the storage pool and a support of the fuel assembly are provided on the base so as to face each other, and the upright frame is provided. At least a TV camera for dimension measurement is mounted on the front of the table so that it can be moved up and down, and a TV camera for dimension measurement is mounted horizontally movable with respect to the slide table, and a transmission case is provided on the holding table. On the other hand, in the center of the upright frame, an intermediate frame is provided so as to extend above the transmission case, and the upper and lower ends of the assembly to be inspected are rotatably supported by the intermediate frame and the transmission case. On the upper surface of the base and one side of the intermediate pedestal, a calibration scale for the horizontal electronic marker of the monitor TV for measurement and an upper and lower ruler with vertical scales for measuring the length of the assembly to be inspected are installed at a certain height. Both at intervals Installed at the same distance as the distance from the TV camera for dimension measurement to the inspection target assembly to form a survey device, and at least a monitor TV for measurement that receives video signals from the TV camera above the storage poolside The operation panel, the data processing panel for processing the measurement data, and the control panel for controlling the movement of the television camera and the rotation of the inspection target assembly are arranged. measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1078031A JPH0774721B2 (en) | 1989-03-31 | 1989-03-31 | Non-contact measuring device for fuel assembly dimensions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1078031A JPH0774721B2 (en) | 1989-03-31 | 1989-03-31 | Non-contact measuring device for fuel assembly dimensions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02259401A JPH02259401A (en) | 1990-10-22 |
| JPH0774721B2 true JPH0774721B2 (en) | 1995-08-09 |
Family
ID=13650442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1078031A Expired - Fee Related JPH0774721B2 (en) | 1989-03-31 | 1989-03-31 | Non-contact measuring device for fuel assembly dimensions |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0774721B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2103642B1 (en) * | 1994-06-22 | 1998-06-01 | Iberdrola Sa | AUTOMATIC THREE-DIMENSIONAL OBJECTS INSPECTION SYSTEM OF LARGE DIMENSIONS. |
| DE19945930C2 (en) * | 1999-09-24 | 2003-05-28 | Framatome Anp Gmbh | Method and device for inspecting a nuclear reactor fuel assembly |
| FR2922042B1 (en) * | 2007-10-08 | 2015-04-03 | Electricite De France | DEVICE FOR INSPECTING AN ASSEMBLY OF FUEL PENCILS IN A SWIMMING POOL OF A NUCLEAR FACILITY AND METHOD FOR INSPECTING THE SAME |
| JP2013113809A (en) * | 2011-11-30 | 2013-06-10 | Nec Networks & System Integration Corp | Distance measurement system |
| CN105006261B (en) * | 2015-07-03 | 2017-12-26 | 中广核研究院有限公司 | Nuclear fuel assembly video detecting method and detection means |
| CN105118535B (en) * | 2015-07-03 | 2017-08-29 | 中广核研究院有限公司 | Nuclear fuel assembly repairs detecting and controlling system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439655A (en) * | 1977-09-02 | 1979-03-27 | Citizen Watch Co Ltd | Underwater inspection apparatus of nuclear fuel assembly |
-
1989
- 1989-03-31 JP JP1078031A patent/JPH0774721B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02259401A (en) | 1990-10-22 |
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