JP3052053B2 - Control rod cluster assembly visual inspection device - Google Patents
Control rod cluster assembly visual inspection deviceInfo
- Publication number
- JP3052053B2 JP3052053B2 JP8020518A JP2051896A JP3052053B2 JP 3052053 B2 JP3052053 B2 JP 3052053B2 JP 8020518 A JP8020518 A JP 8020518A JP 2051896 A JP2051896 A JP 2051896A JP 3052053 B2 JP3052053 B2 JP 3052053B2
- Authority
- JP
- Japan
- Prior art keywords
- base
- mirror
- rcca
- control rod
- guide holes
- 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
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Closed-Circuit Television Systems (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は制御棒クラスタ集合
体（以下ＲＣＣＡという）の外観検査装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visual inspection apparatus for a control rod cluster assembly (hereinafter referred to as RCCA).
【０００２】[0002]
【従来の技術】ＲＣＣＡの外観検査の装置としては、現
在ＲＣＣＡを専用の取扱工具で吊り下げた状態で回転さ
せることによって、外側や内側ロッドの外面側のみをテ
レビカメラで検査するものがある。2. Description of the Related Art As an apparatus for visual inspection of RCCA, there is an apparatus for inspecting only the outer surface side of an outer or inner rod with a television camera by rotating the RCCA while hanging it with a dedicated handling tool.
【０００３】しかしながら、実機使用後のＲＣＣＡは、
内側ロッドの方が外側のものよりも環境的に厳しいとさ
れており、内側ロッドの方が早く損傷する可能性がある
が、上記従来の検査装置においては、外側ロッド及び損
傷頻度の高い内側ロッドの夫々の内面側は確認すること
ができない。[0003] However, the RCCA after using the actual machine is
It is said that the inner rod is environmentally more severe than the outer rod, and the inner rod may be damaged earlier. The inner side of each of these cannot be confirmed.
【０００４】また、ＲＣＣＡの別の検査装置としてＥＣ
Ｔコイルを用いるものがあるが、これは主に探傷用で検
査時間が長く、近い将来に実施される定検短縮には対応
が不可能となる上、調整が困難でコストもかかるという
問題を有している。[0004] As another inspection apparatus of RCCA, EC is used.
Some use T-coils, which are mainly used for flaw detection and have a long inspection time, making it impossible to cope with short-term regular inspections to be carried out in the near future, and making adjustments difficult and costly. Have.
【０００５】[0005]
【発明が解決しようとする課題】本発明は叙上の如き実
状に対処し、ＲＣＣＡの外観を全ロッドの全周に亘り、
先端部分からプレナム部上部までを短時間で簡易に検査
することを目的とするものである。SUMMARY OF THE INVENTION The present invention addresses the circumstances described above, and provides the appearance of RCCA over the entire circumference of all rods.
The purpose of the present invention is to provide a simple and quick inspection from the tip to the upper part of the plenum.
【０００６】[0006]
【課題を解決するための手段】すなわち、上記目的に適
合する本発明の外観検査装置の特徴は、ＲＣＣＡのロッ
ドを夫々嵌挿させる複数のガイドホールを中央部に有す
る水平板状の基台と、この基台の外周付近に配設された
複数のテレビカメラとを備えてなり、任意のガイドホー
ルの周囲を周方向に４分割して、各分割部の正面に鏡を
配設すると共に、背向する分割部同士が１台のカメラ視
野に収まるように上記鏡の角度を設定したところにあ
る。That is, a feature of the visual inspection apparatus of the present invention that meets the above-mentioned object is that a horizontal plate-like base having a plurality of guide holes at the center thereof for inserting respective RCCA rods is provided. And a plurality of television cameras arranged near the outer periphery of the base, and the periphery of an arbitrary guide hole is divided into four parts in the circumferential direction, and a mirror is arranged in front of each divided part. The angle of the mirror is set so that the rearwardly facing divided portions fall within the field of view of one camera.
【０００７】また、上記本発明の外観検査装置におい
て、上記基台を上下２段に形成して、一方の基台で外周
部のほぼ半数のガイドホールに上記鏡を設置すると共
に、他方の基台で内周部のほぼ半数のガイドホールに上
記鏡を設置し、これら上下２段の鏡を有するガイドホー
ルを、鏡のないガイドホールに対し同数以上となし且つ
点対称に配設することも可能である。Further, in the above-mentioned appearance inspection apparatus of the present invention, the base is formed in two upper and lower stages, and one of the bases is provided with the mirror in approximately half of the guide holes in the outer peripheral portion, and the other base is provided with the other base. The mirrors may be installed in approximately half of the guide holes on the inner peripheral portion of the table, and the guide holes having the upper and lower two-stage mirrors may be provided in the same number or more as to the guide holes without mirrors, and may be disposed point-symmetrically. It is possible.
【０００８】[0008]
【作用】本発明の外観検査装置では、ＲＣＣＡを上から
吊り下げて、基台のガイドホールにロッドを挿入しなが
ら外観をテレビカメラによって検査する。この場合、上
記ロッドの周囲には四方を映す鏡が配設されていること
から、ロッドの全周をくまなく外観検査することが可能
であり、また４方向の映像を２台のテレビカメラで賄え
るため、検査装置をコンパクトで低コストとすることが
可能である。そして、上記基台を上下２段とすることに
より鏡やテレビカメラのスペースの有効利用を図ること
ができ、さらに上記鏡を有するガイドホールと鏡のない
ガイドホールとを点対称に形成することにより、ＲＣＣ
Ａを１８０°回転させて２度基台に挿入するだけで全ロ
ッドの外観検査を行うことが可能となる。In the appearance inspection apparatus of the present invention, the appearance is inspected by a television camera while the RCCA is suspended from above and a rod is inserted into the guide hole of the base. In this case, since mirrors reflecting four directions are provided around the rod, it is possible to inspect the entire circumference of the rod, and images in four directions can be obtained with two television cameras. Since it can be covered, the inspection apparatus can be made compact and low-cost. By making the base two steps above and below, it is possible to effectively use the space of the mirror and the television camera. Further, by forming the guide hole having the mirror and the guide hole having no mirror in a point symmetrical manner. , RCC
It is possible to inspect the appearance of all the rods simply by rotating A by 180 ° and inserting it into the base twice.
【０００９】[0009]
【実施例】以下更に添付図面を参照して、本発明の実施
例を説明する。図１は本発明実施例のＲＣＣＡの外観検
査装置を示す全体図、図２は同装置の上部基台を示す平
面図、図３は同、下部基台を示す平面図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall view showing an RCCA appearance inspection apparatus according to an embodiment of the present invention, FIG. 2 is a plan view showing an upper base of the apparatus, and FIG. 3 is a plan view showing a lower base thereof.
【００１０】上記実施例の検査装置は２４本のロッド３
を備えたＲＣＣＡ用のものであり、図１に示すように上
下２段に形成された水平板状の基台１ａ、１ｂと、この
基台１ａ、１ｂの外周付近に夫々配設された合計２４台
のテレビカメラ２とを備えている。上記上下の基台１
ａ、１ｂの中央部には夫々、図２、図３に示す如く、上
記ＲＣＣＡのロッド３を嵌挿させる２４個のガイドホー
ル４が形成されている。The inspection apparatus of the above embodiment has 24 rods 3
As shown in FIG. 1, a horizontal plate-like bases 1a and 1b are formed in two stages, and a total of the bases 1a and 1b are provided near the outer periphery of the bases 1a and 1b. 24 television cameras 2 are provided. The upper and lower bases 1
As shown in FIGS. 2 and 3, 24 guide holes 4 into which the rods 3 of the RCCA are inserted are formed in the central portions of the parts a and b, respectively.
【００１１】上記ガイドホールの任意のものには、図
２、図３に示す如く、その周囲を周方向に４等分して、
各分割部の正面に夫々鏡５を配設すると共に、背を向き
合う分割部同士が１台のカメラ視野に収まるように上記
鏡５の角度を各分割部正面の接線に対し４５°に設定し
ている。As shown in FIGS. 2 and 3, the guide hole is divided into four equal parts in the circumferential direction as shown in FIGS.
The mirrors 5 are arranged in front of the respective divided portions, and the angle of the mirror 5 is set to 45 ° with respect to the tangent line in front of each divided portion so that the divided portions facing each other fall within the field of view of one camera. ing.
【００１２】そして、上記２段の基台１ａ、１ｂにおい
て、図２に示す如く上記基台１ａで外周部のほぼ半数の
ガイドホール４に上記鏡５とテレビカメラ２とが設置さ
れると共に、図３に示す如く下の基台１ｂで内周部のほ
ぼ半分のガイドホール４に同じく鏡５とテレビカメラ２
とが設置され、これら上下２段の基台１ａ、１ｂで合計
した鏡を有するガイドホール４が、図２、図３に示す如
く鏡のないガイドホール４に対し点対称に配設されてい
る。上記合計した鏡を有するガイドホール４は、鏡のな
いガイドホール４と同数になっている。In the two-stage bases 1a and 1b, as shown in FIG. 2, the mirror 5 and the television camera 2 are installed in almost half of the guide holes 4 on the outer periphery of the base 1a. As shown in FIG. 3, a mirror 5 and a television camera 2 are also provided in a guide hole 4 which is substantially half of the inner periphery of the lower base 1b.
And a guide hole 4 having a mirror obtained by summing up the two upper and lower bases 1a and 1b is disposed symmetrically with respect to the guide hole 4 having no mirror as shown in FIGS. . The number of the guide holes 4 having the mirrors is equal to the number of the guide holes 4 having no mirror.
【００１３】このため、テレビカメラは、上の基台１ａ
で１４台（図２では１台のみ図示）、下の基台１ｂで１
０台（図３では１台のみ図示）夫々設置されている。ま
た、カメラ２の映像を最大８台分多重録画できるフレー
ムスイッチャー６を使用することにより、モニター、ビ
デオは、上の基台１ａ分として２台ずつ、下の基台１ｂ
分として２台ずつ夫々配置されているが、基台１ａ、１
ｂを分けなければ上記モニター、ビデオは３台ずつで賄
える。なお、図１に示す７はＲＣＣＡ取扱工具保持架台
であり、ＲＣＣＡ取扱工具外筒８のガイドピン８ａと嵌
合する構造を有すると共に、中央部にＲＣＣＡのスパイ
ダー部９を挿通させるクラスタ形状の孔１０を有してい
る。For this reason, the television camera is mounted on the upper base 1a.
14 (only one is shown in FIG. 2), and 1 on the lower base 1b.
0 (only one is shown in FIG. 3) is installed. In addition, by using the frame switcher 6 capable of multiplex-recording up to eight images of the camera 2, the monitor and the video can be divided into two for the upper base 1 a and two for the lower base 1 b.
Each of the bases 1a, 1
If you do not divide b, the above monitor and video can be covered by three units. Reference numeral 7 shown in FIG. 1 denotes an RCCA handling tool holding base, which has a structure to be fitted with the guide pin 8a of the RCCA handling tool outer cylinder 8, and has a cluster-shaped hole through which a spider portion 9 of the RCCA is inserted in the center. It has ten.
【００１４】しかして、上記実施例の検査装置では、ま
ず使用済燃料プール中の使用済燃料保管ラック１１上
に、前記上下の基台１ａ、１ｂとＲＣＣＡ取扱工具保持
架台７とをクレーンにより図１に示すように設置する。
検査前準備としては、あとはケーブル処理と映像確認を
するだけである。In the inspection apparatus of the above embodiment, first, the upper and lower bases 1a and 1b and the RCCA handling tool holding frame 7 are placed on the spent fuel storage rack 11 in the spent fuel pool by a crane. Install as shown in 1.
All you need to do before inspection is to handle the cables and check the images.
【００１５】検査を開始するには、まずＲＣＣＡ１２を
その取扱工具で吊り、同工具外筒８下端のガイドピン８
ａによって保持架台７に対する位置決めを行う。その
後、ＲＣＣＡを下降させながら、基台１ａ、１ｂで同時
に検査を行う。In order to start the inspection, first, the RCCA 12 is hung by the handling tool, and the guide pin
Positioning with respect to the holding base 7 is performed by a. Thereafter, the inspection is performed simultaneously on the bases 1a and 1b while lowering the RCCA.
【００１６】検査時の昇降速度は約３ｍ／ｍｉｎであ
る。なお、１回の昇降では図２、図３に示すようにＲＣ
ＣＡ１２の半数のロッド３しか検査できないため、抜き
取り後ＲＣＣＡ１２を１８０°回転させて再挿入する。
この工程を行うのに、ＲＣＣＡ１体当たり９分程度で検
査が可能であり（取扱工具の水平移動時間、ラッチ、ア
ンラッチ時間は含まず）、１つの炉心のＲＣＣＡの全数
検査を１日程度で終了させることが可能である。The elevating speed at the time of inspection is about 3 m / min. In addition, as shown in FIG. 2 and FIG.
Since only half of the rods 3 of the CA 12 can be inspected, the RCCA 12 is rotated 180 ° and reinserted after the extraction.
In order to carry out this process, inspection can be performed in about 9 minutes per RCCA (excluding horizontal movement time, latching and unlatching time of the handling tool), and complete inspection of RCCA of one core in about 1 day It is possible to do.
【００１７】なお、１台のテレビカメラ２でロッド３の
２面を撮影することから、モニター画面上では、図４に
示す如く中央にミラー背面またはロッドを挟んで左右に
分割した映像となる。また、ＲＣＣＡの昇降と同時にリ
アルタイムで外観検査することが、ＲＣＣＡ１体当たり
のロッドの数が多く困難なときは、ＶＴＲの再生のみで
検査を行うことになる。Since two surfaces of the rod 3 are photographed by one television camera 2, on the monitor screen, the image is divided into right and left with the mirror back or the rod interposed therebetween, as shown in FIG. In addition, when it is difficult to perform a visual inspection in real time simultaneously with the raising and lowering of the RCCA and the number of rods per RCCA is difficult, the inspection is performed only by reproducing the VTR.
【００１８】[0018]
【発明の効果】以上説明したように、本発明のＲＣＣＡ
の外観検査装置は、ＲＣＣＡのロッドを夫々嵌挿させる
複数のガイドホールを中央部に有する水平板状の基台
と、この基台の外周付近に配設された複数のテレビカメ
ラとを備えてなり、任意のガイドホールの周囲を周方向
に４分割して、各分割部の正面に鏡を配設すると共に、
背向する分割部同士が１台のカメラ視野に収まるように
上記鏡の角度を設定したものであり、上記ロッドの周囲
には四方を映す鏡が配設されていることから、先端から
プレナム部までロッドの全周をくまなく外観検査するこ
とが可能であり、また４方向の映像を２台のテレビカメ
ラで賄えるため、検査装置をコンパクトで低コストとす
ることが可能である。そして、水中部に機構部がないた
め、故障頻度が少く、据付、調整が容易であり、安価で
迅速な検査を行わしめて、定検工程短縮後でも充分に対
応しうるとの顕著な効果を奏するものである。また、上
記基台を上下２段とすることにより鏡やテレビカメラの
スペースの有効利用を図ることができ、さらに上記鏡を
有するガイドホールと鏡のないガイドホールとを点対称
に形成することにより、ＲＣＣＡを１８０°回転させて
２度基台に挿入するだけで全ロッドの外観検査を行わし
めることが可能である。As described above, the RCCA of the present invention
Is equipped with a horizontal plate-shaped base having a plurality of guide holes at the center thereof, into which RCCA rods are fitted, and a plurality of television cameras arranged near the outer periphery of the base. In addition, the circumference of an arbitrary guide hole is divided into four parts in the circumferential direction, and a mirror is arranged in front of each divided part.
The angles of the mirrors are set so that the rearwardly facing divided portions fall within the field of view of one camera, and mirrors reflecting four directions are arranged around the rod, so that the plenum portion starts from the tip. The entire circumference of the rod can be inspected throughout, and the images in four directions can be covered by two television cameras. Therefore, the inspection apparatus can be made compact and low-cost. And since there is no mechanical part in the underwater part, the frequency of failure is low, installation and adjustment are easy, cheap and quick inspection can be performed, and it is possible to respond sufficiently even after shortening the regular inspection process. To play. Further, by making the base two steps above and below, it is possible to effectively use the space of the mirror and the TV camera. Further, by forming the guide hole having the mirror and the guide hole without the mirror in point symmetry, It is possible to inspect the appearance of all the rods simply by rotating the RCCA 180 ° and inserting it twice into the base.
【図１】本発明実施例のＲＣＣＡの外観検査装置を示す
全体図である。FIG. 1 is an overall view showing an RCCA appearance inspection apparatus according to an embodiment of the present invention.
【図２】同装置の上部基台を示す平面図である。FIG. 2 is a plan view showing an upper base of the apparatus.
【図３】同、下部基台を示す平面図である。FIG. 3 is a plan view showing the lower base.
【図４】モニター画面の例を示す説明図である。FIG. 4 is an explanatory diagram illustrating an example of a monitor screen.
１ａ 上の基台 １ｂ 下の基台 ２ テレビカメラ ３ ロッド ４ ガイドホール ５ 鏡 ６ フレームスイッチャー ７ ＲＣＣＡ取扱工具保持架台 ８ ＲＣＣＡ取扱工具 ８ａ ガイドピン ９ スパイダー部 １０ 孔 １１ 使用済燃料保管ラック １２ ＲＣＣＡ Reference Signs List 1a Upper base 1b Lower base 2 TV camera 3 Rod 4 Guide hole 5 Mirror 6 Frame switcher 7 RCCA handling tool holding stand 8 RCCA handling tool 8a Guide pin 9 Spider section 10 Hole 11 Spent fuel storage rack 12 RCCA
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｈ０４Ｎ 7/18 Ｇ２１Ｃ 7/10 Ｋ (58)調査した分野(Int.Cl.7，ＤＢ名) G21C 17/00,17/06,17/08 G01N 21/88 G21C 7/10 H04N 7/18 ＪＩＣＳＴファイル（ＪＯＩＳ)──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 identification code FI H04N 7/18 G21C 7/10 K (58) Investigated field (Int.Cl. 7 , DB name) G21C 17 / 00,17 / 06,17 / 08 G01N 21/88 G21C 7/10 H04N 7/18 JICST file (JOIS)
Claims (2)
挿させる複数のガイドホールを中央部に有する水平板状
の基台と、この基台の外周付近に配設された複数のテレ
ビカメラとを備えてなり、任意のガイドホールの周囲を
周方向に４分割して、各分割部の正面に鏡を配設すると
共に、背向する分割部同士が１台のカメラ視野に収まる
ように上記鏡の角度を設定したことを特徴とする制御棒
クラスタ集合体の外観検査装置。1. A horizontal plate-like base having a plurality of guide holes at the center thereof for inserting rods of a control rod cluster assembly, and a plurality of television cameras disposed near the outer periphery of the base. The periphery of an arbitrary guide hole is divided into four parts in the circumferential direction, a mirror is provided in front of each divided part, and the above-mentioned divided parts facing each other are included in the field of view of one camera. An appearance inspection device for a control rod cluster assembly, wherein an angle of a mirror is set.
基台で外周部のほぼ半数のガイドホールに上記鏡を設置
すると共に、他方の基台で内周部のほぼ半数のガイドホ
ールに上記鏡を設置し、これら上下２段の鏡を有するガ
イドホールを、鏡のないガイドホールに対し同数以上と
なし且つ点対称に配設した請求項１記載の制御棒クラス
タ集合体の外観検査装置。2. The base is formed in two upper and lower stages, and the mirror is installed in approximately half of the guide holes on the outer periphery on one base, and the mirror is installed on the other base on approximately half of the inner periphery. 2. The control rod cluster assembly according to claim 1, wherein the mirrors are installed in a guide hole, and the guide holes having the upper and lower two-stage mirrors are arranged in the same number or more and point-symmetrically with respect to the guide holes without mirrors. Appearance inspection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8020518A JP3052053B2 (en) | 1996-01-10 | 1996-01-10 | Control rod cluster assembly visual inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8020518A JP3052053B2 (en) | 1996-01-10 | 1996-01-10 | Control rod cluster assembly visual inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09189792A JPH09189792A (en) | 1997-07-22 |
| JP3052053B2 true JP3052053B2 (en) | 2000-06-12 |
Family
ID=12029389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8020518A Expired - Fee Related JP3052053B2 (en) | 1996-01-10 | 1996-01-10 | Control rod cluster assembly visual inspection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3052053B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252686A (en) * | 2019-06-20 | 2019-09-20 | 珠海格力智能装备有限公司 | The determination method and device of remote controler quality |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3687766B2 (en) | 1997-11-19 | 2005-08-24 | 株式会社石野製作所 | Food and beverage circulation transport path with open / close door |
| FR2869447B1 (en) * | 2004-04-23 | 2006-07-21 | Framatome Anp Sas | METHOD AND DEVICE FOR MONITORING THE REALIZATION OF A CONNECTING OR DISCONNECTING STATE OF A DISPLACEMENT CONTROL ROD OF A CONTROL CLUSTER OF A NUCLEAR REACTOR |
| JP5011135B2 (en) * | 2008-01-17 | 2012-08-29 | 日立Ｇｅニュークリア・エナジー株式会社 | Fuel body dimension inspection method and fuel body dimension inspection apparatus |
| CN102693763B (en) * | 2011-03-21 | 2014-07-23 | 江苏核电有限公司 | Control rod comprehensive test method |
-
1996
- 1996-01-10 JP JP8020518A patent/JP3052053B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252686A (en) * | 2019-06-20 | 2019-09-20 | 珠海格力智能装备有限公司 | The determination method and device of remote controler quality |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09189792A (en) | 1997-07-22 |
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