JPH09189792A - Visual inspection device for control rod cluster assembly - Google Patents
Visual inspection device for control rod cluster assemblyInfo
- Publication number
- JPH09189792A JPH09189792A JP8020518A JP2051896A JPH09189792A JP H09189792 A JPH09189792 A JP H09189792A JP 8020518 A JP8020518 A JP 8020518A JP 2051896 A JP2051896 A JP 2051896A JP H09189792 A JPH09189792 A JP H09189792A
- Authority
- JP
- Japan
- Prior art keywords
- base
- rcca
- control rod
- guide holes
- mirror
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Closed-Circuit Television Systems (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
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 inspecting the appearance of RCCA, there is currently an apparatus for inspecting only the outer surface side of an outer rod or an inner rod with a television camera by rotating the RCCA while suspending 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。However, RCCA after using the actual machine is
It is said that the inner rod is environmentally stricter than the outer one, and the inner rod may be damaged earlier. It is not possible to confirm the inner side of each.
【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。EC as another inspection device of RCCA
There are some that use a T-coil, but this is mainly for flaw detection, and the inspection time is long, and it is impossible to cope with the shortened regular inspection in the near future, and it is difficult to adjust 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。DISCLOSURE OF THE INVENTION The present invention deals with the above-mentioned actual situation and makes the appearance of RCCA over the entire circumference of all rods,
The purpose is to easily inspect from the tip to the upper part of the plenum in a short time.
【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 appearance inspection apparatus of the present invention which meets the above-mentioned object is that it has a horizontal plate-shaped base having a plurality of guide holes in the center for inserting RCCA rods. , Comprising a plurality of TV cameras arranged in the vicinity of the outer periphery of this base, and dividing the circumference of any guide hole into four in the circumferential direction, and arranging a mirror in front of each divided portion, The angle of the mirror is set so that the divided parts facing each other are 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 appearance inspection apparatus of the present invention, the bases are formed in upper and lower two steps, and the mirrors are installed in approximately half of the guide holes in the outer periphery of one base and the other base is installed. It is also possible to install the above-mentioned mirrors in approximately half of the guide holes in the inner peripheral portion of the table and arrange the guide holes having the upper and lower two stages of mirrors in the same number or more and in point symmetry with respect to the guide holes without mirrors. 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 RCCA is hung from above and the appearance is inspected by the television camera while inserting the rod into the guide hole of the base. In this case, since a mirror that reflects in all directions is arranged around the rod, it is possible to inspect the entire circumference of the rod, and images in four directions can be viewed with two TV cameras. Since this can be covered, the inspection device can be made compact and low cost. Further, by arranging the base in two steps, the space for the mirror and the TV camera can be effectively used, and the guide hole with the mirror and the guide hole without the mirror are formed point-symmetrically. , RCC
By rotating A by 180 ° and inserting it into the base twice, it becomes possible to perform visual inspection of all rods.
【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 the same lower base.
【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-mentioned embodiment has 24 rods 3
Is for RCCA and is provided with horizontal plate-shaped bases 1a and 1b formed in upper and lower two stages as shown in FIG. 1, and a total of the bases 1a and 1b disposed near the outer peripheries of the bases 1a and 1b, respectively. It is provided with 24 TV cameras 2. Above and below base 1
As shown in FIGS. 2 and 3, 24 guide holes 4 into which the RCCA rod 3 is inserted are formed in the central portions of a and 1b, 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 divisions, and the angle of the mirrors 5 is set to 45 ° with respect to the tangent of the fronts of the divisions so that the back-to-back divisions fit 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。Then, in the two-stage bases 1a and 1b, as shown in FIG. 2, the mirror 5 and the television camera 2 are installed in approximately half of the guide holes 4 on the outer periphery of the base 1a. As shown in FIG. 3, in the lower base 1b, a mirror 5 and a television camera 2 are also provided in a guide hole 4 in approximately half of the inner peripheral portion.
Are installed, and the guide hole 4 having a mirror formed by the upper and lower bases 1a and 1b is arranged point-symmetrically with respect to the guide hole 4 having no mirror as shown in FIGS. . The total number of guide holes 4 having the above-mentioned mirrors is the same as that 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 has an upper base 1a.
14 units (only one unit is shown in Fig. 2), 1 unit on the lower base 1b
0 units (only one unit is shown in FIG. 3) are installed. In addition, by using the frame switcher 6 capable of multiple-recording images from the camera 2 for a maximum of eight units, two monitors and two videos are provided for the upper base 1a and the lower base 1b.
Two units are arranged for each, but bases 1a, 1
If you do not divide b, the above monitors and videos can be covered by 3 units each. In addition, 7 shown in FIG. 1 is an RCCA handling tool holding mount, 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 the RCCA spider portion 9 is inserted. Have 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, the upper and lower bases 1a and 1b and the RCCA handling tool holding base 7 are first mounted on the spent fuel storage rack 11 in the spent fuel pool by a crane. Install as shown in 1.
As for the preparation before the inspection, all that is left is to process the cable and check the image.
【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。To start the inspection, first, the RCCA 12 is hung by its handling tool, and the guide pin 8 at the lower end of the tool outer cylinder 8 is suspended.
Positioning with respect to the holding frame 7 is performed by a. After that, while lowering the RCCA, the bases 1a and 1b are simultaneously inspected.
【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 ascending / descending speed at the time of inspection is about 3 m / min. It should be noted that, as shown in FIG. 2 and FIG.
Since only half the rods 3 of CA 12 can be inspected, RCCA 12 is rotated 180 ° and reinserted after extraction.
In order to perform this process, it is possible to inspect in about 9 minutes per RCCA (excluding the horizontal movement time of the handling tool, latching and unlatching time), and the total inspection of RCCA of one core is completed in about 1 day. It is possible to
【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 one television camera 2 photographs the two surfaces of the rod 3, the image is divided into left and right on the monitor screen as shown in FIG. Further, when it is difficult to perform a visual inspection in real time at the same time when the RCCA is moved up and down, when the number of rods per RCCA is large, 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 used.
The visual inspection apparatus of 1 is equipped with a horizontal plate-shaped base having a plurality of guide holes into which the RCCA rods are respectively inserted and which is inserted in the center, and a plurality of TV cameras arranged near the outer periphery of the base. , The circumference of any guide hole is divided into four 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 divided parts facing each other fit within the field of view of one camera, and since mirrors that project from all sides are arranged around the rod, the plenum part from the tip end is arranged. The entire circumference of the rod can be visually inspected, and four TV images can be covered by two TV cameras, so that the inspection device can be made compact and low cost. And since there is no mechanical part in the underwater part, the failure frequency is low, installation and adjustment are easy, inexpensive and quick inspection can be performed, and it is possible to sufficiently respond even after shortening the regular inspection process. It plays. Further, by arranging the base in two steps, the space for the mirror and the TV camera can be effectively utilized, and the guide hole having the mirror and the guide hole having no mirror are formed point-symmetrically. , RCCA can be rotated 180 ° and inserted into the base twice to perform visual inspection of all rods.
【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 of the same.
【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 showing 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 1a Upper base 1b Lower base 2 Television camera 3 Rod 4 Guide hole 5 Mirror 6 Frame switcher 7 RCCA handling tool holding frame 8 RCCA handling tool 8a Guide pin 9 Spider part 10 Hole 11 Spent fuel storage rack 12 RCCA
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-shaped base having a plurality of guide holes into which the rods of the control rod cluster assembly are respectively inserted, 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, a mirror is arranged in front of each divided part, and the divided parts facing back are included in one camera's visual field. A visual inspection apparatus for a control rod cluster assembly, characterized in that a mirror angle 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 upper and lower two stages, one of the bases is provided with the mirrors in guide holes of approximately half of the outer peripheral portion, and the other base is provided with almost half of the inner peripheral portion. 2. The control rod cluster assembly according to claim 1, wherein the mirrors are installed in the guide holes, and the guide holes having the upper and lower two stages of mirrors are arranged in a point symmetry in the same number or more 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 true JPH09189792A (en) | 1997-07-22 |
JP3052053B2 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 (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6260694B1 (en) | 1997-11-19 | 2001-07-17 | Ishino Seisakusyo Co., Inc. | Food and drink circulating conveyer passage provided with opening and closing doors |
FR2869447A1 (en) * | 2004-04-23 | 2005-10-28 | Framatome Anp Sas | Nuclear reactor fuel cluster control rod connection/disconnection monitoring comprises use of visual markers on control rod connection/disconnection tool |
JP2009168641A (en) * | 2008-01-17 | 2009-07-30 | Hitachi-Ge Nuclear Energy Ltd | Method and apparatus for inspecting fuel assembly dimension |
CN102693763A (en) * | 2011-03-21 | 2012-09-26 | 江苏核电有限公司 | Control rod comprehensive test method |
Families Citing this family (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 | Method and device for determining quality of remote controller |
-
1996
- 1996-01-10 JP JP8020518A patent/JP3052053B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6260694B1 (en) | 1997-11-19 | 2001-07-17 | Ishino Seisakusyo Co., Inc. | Food and drink circulating conveyer passage provided with opening and closing doors |
FR2869447A1 (en) * | 2004-04-23 | 2005-10-28 | Framatome Anp Sas | Nuclear reactor fuel cluster control rod connection/disconnection monitoring comprises use of visual markers on control rod connection/disconnection tool |
JP2009168641A (en) * | 2008-01-17 | 2009-07-30 | Hitachi-Ge Nuclear Energy Ltd | Method and apparatus for inspecting fuel assembly dimension |
CN102693763A (en) * | 2011-03-21 | 2012-09-26 | 江苏核电有限公司 | Control rod comprehensive test method |
CN102693763B (en) * | 2011-03-21 | 2014-07-23 | 江苏核电有限公司 | Control rod comprehensive test method |
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