JPS6026975B2 - Automatic penetrant testing cleaning tool - Google Patents
Automatic penetrant testing cleaning toolInfo
- Publication number
- JPS6026975B2 JPS6026975B2 JP51136283A JP13628376A JPS6026975B2 JP S6026975 B2 JPS6026975 B2 JP S6026975B2 JP 51136283 A JP51136283 A JP 51136283A JP 13628376 A JP13628376 A JP 13628376A JP S6026975 B2 JPS6026975 B2 JP S6026975B2
- Authority
- JP
- Japan
- Prior art keywords
- automatic
- plug
- cleaning tool
- tool
- cleaning liquid
- 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
- 238000004140 cleaning Methods 0.000 title claims description 33
- 238000012360 testing method Methods 0.000 title claims description 7
- 239000007788 liquid Substances 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
【発明の詳細な説明】
本発明はＰＷＲ型（加圧水型）原子力プラントの蒸気発
生器補修後、その溶接部を浸透深傷試験する自動浸透探
傷洗浄工具に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic penetrant testing and cleaning tool for penetrant deep flaw testing of welded parts after repair of a steam generator of a PWR type (pressurized water type) nuclear power plant.
ＰＷＲ型原子力プラントの蒸気発生器はその補修にプラ
グ溶接を施すが、溶接後は健全性確認のために浸透深傷
試験（ＰＴ）を行う必要がある。しかし作業場所が放射
能雰囲気であるために、作業を自動化し、被曝量低減化
の必要があった。本発明はこれらの要望に応ずるべくな
されたものである。すなわち本発明は、加圧水型原子力
プラントの蒸気発生器の管板下面に取付いて歩行移動で
きる案内用移動装置に、空気作動のロックピンの脱入に
よって簡易装着された自動浸透探傷洗浄工具において、
駆動用モータと歯車とによって回転可能な回転筒の回動
板にふたつのノズル、すなわち回転の中心位置に位置し
プラグ孔に噴出流を向わせるパイプ状のノズルおよび偏
○位直に位置しプラグの溶接部に霧状に頃霧するスプレ
ー／ズル、を配設し、このスプレーノズルの対向位置に
洗浄液タンクと前記回転板間に設けた真空室とを蓬適さ
せ、さらに側部に設けた真空排気用の吸引孔と結合した
吸引ノズルを前記プラグ溶接部に対向して前記回転板に
配設したことを特徴とする自動浸透深傷洗浄工具にある
。次に本発明の自動浸透深傷洗浄工具の実施例について
図面を参照して詳細に説明する。Plug welding is used to repair steam generators in PWR nuclear power plants, but after welding, a deep penetration test (PT) must be performed to confirm the integrity of the weld. However, because the work place is in a radioactive atmosphere, it was necessary to automate the work and reduce the amount of radiation exposure. The present invention has been made in response to these needs. That is, the present invention provides an automatic penetrant testing cleaning tool that is easily attached to a guiding movement device that is attached to the lower surface of a tube plate of a steam generator of a pressurized water type nuclear power plant and can be moved by walking by simply inserting and removing an air-operated lock pin.
There are two nozzles on the rotary plate of the rotary cylinder, which can be rotated by a drive motor and gears: a pipe-shaped nozzle located at the center of rotation and directing the jet stream toward the plug hole, and a pipe-shaped nozzle located at the eccentric position. A spray/zzle that produces mist is provided at the welded part of the plug, and a cleaning liquid tank and a vacuum chamber provided between the rotary plate are placed in a position opposite to this spray nozzle, and further provided on the side. The automatic penetrating deep scratch cleaning tool is characterized in that a suction nozzle coupled with a suction hole for evacuation is disposed on the rotary plate opposite to the plug welding part. Next, embodiments of the automatic penetration deep wound cleaning tool of the present invention will be described in detail with reference to the drawings.
以下、加圧水型原子力プラントの蒸気発生器の細替プラ
グ溶接部浸透深傷用洗浄工具として適用した例について
説明する。Hereinafter, an example in which the present invention is applied as a cleaning tool for penetrating deep damage to a fine plug weld of a steam generator of a pressurized water type nuclear power plant will be described.
第１図は蒸気発生器の本体容器１、管板２、級管チュー
ブ３を有する蒸気発生器に本工具を適用した状態を示し
ている。FIG. 1 shows the present tool applied to a steam generator having a main vessel 1, a tube plate 2, and a class tube 3.
本発明の工具は、案内菱贋４に装着された状態で作動す
る（第１図Ａ部）。案内装置４は紬管チューブ３を利用
し、垂下状態で管板下を歩行できる。したがって本工具
は所要の位置に遠隔で案内され、洗浄作業を自動で行な
うことができる。The tool of the present invention operates while attached to the guide ring 4 (section A in FIG. 1). The guide device 4 uses the pongee tube 3 and can walk under the tube plate in a hanging state. Therefore, this tool can be remotely guided to the required position and the cleaning operation can be performed automatically.
案内装置４は、マンホール５より挿入可能となっており
、本工具もマンホ−ル５より挿入、着脱可能であり、ケ
ーブルを制御盤と連結することによって遠隔で操作でき
る。第２図及び第３図は、洗浄工具（第１図Ａ部）の詳
細である。The guide device 4 can be inserted through the manhole 5, and this tool can also be inserted into and removed from the manhole 5, and can be operated remotely by connecting a cable to a control panel. FIGS. 2 and 3 show details of the cleaning tool (section A in FIG. 1).
６はプラグであり、周辺に溶接部７を有している。Reference numeral 6 denotes a plug, which has a welded portion 7 around its periphery.
８は回転板１川こ取付けられ回転の中心位置に位置しプ
ラグ６の孔に噴出流を向わせるパイプ状のノズルであり
、９は同じく回転板１０‘こ取付けられ偏Ｄ位置に位置
しプラグ６の溶接部７に霧状に曙霧するスプレーノズル
である。Reference numeral 8 denotes a pipe-shaped nozzle which is attached to the rotating plate 1 and located at the center of rotation, and directs the jet stream to the hole of the plug 6. Numeral 9 is also attached to the rotating plate 10' and is located at the eccentric position D. This is a spray nozzle that sprays a mist onto the welded portion 7 of the plug 6.
回転板１０には洗浄液流路１１が設けられ、回転筒１２
に固定ネジ１３で固定されている。さらに洗浄液流路１
１は導管１４を連結されて洗浄液タンク１５に通じてい
る。なお洗浄液タンク１５には洗浄液注入管１６が設け
られている。回転筒１２には伝達歯車１７が取付けられ
てあり、モータ１８に取り付けられた伝達歯車１９とか
み合っており、回転筒１２に回転力を伝える。The rotating plate 10 is provided with a cleaning liquid flow path 11, and the rotating cylinder 12 is provided with a cleaning liquid flow path 11.
It is fixed with a fixing screw 13. Furthermore, the cleaning liquid flow path 1
1 is connected to a conduit 14 and communicates with a cleaning liquid tank 15 . Note that the cleaning liquid tank 15 is provided with a cleaning liquid injection pipe 16 . A transmission gear 17 is attached to the rotating cylinder 12 and meshes with a transmission gear 19 attached to a motor 18 to transmit rotational force to the rotating cylinder 12.
２０は磁気センサで、歯車１９に取り付けられた磁石２
１によるパルスにより回転数を検出する。20 is a magnetic sensor, and a magnet 2 attached to the gear 19
The number of revolutions is detected by the pulse generated by 1.
２２は吸引ノズルで、回転板１川こ設置され真空室２３
に蓮通しており、ばね２４によって弾性支持されており
、溶接部７に密着している。22 is a suction nozzle, a rotary plate is installed in the vacuum chamber 23.
It is elastically supported by a spring 24, and is in close contact with the welding part 7.
真空室２３はホルダ２川こ取り付けられた吸引孔２６を
通じて真空引きされる。ホルダ２５の先端部には弾性を
有するゴムシール２７が取り付けられている。回転板１
０、回転筒１２は軸受２８，２９，３０，３１によって
ホルダ２５に支持される。The vacuum chamber 23 is evacuated through a suction hole 26 attached to the holder 2. An elastic rubber seal 27 is attached to the tip of the holder 25. Rotating plate 1
0. The rotating cylinder 12 is supported by the holder 25 by bearings 28, 29, 30, and 31.
またスべ−サ３２，３３によって軸方向の動きを抑制さ
れる。３４，３５はシール材で要所に設置される。Moreover, movement in the axial direction is suppressed by the spacers 32 and 33. 34 and 35 are sealing materials installed at important points.
上記工具は、モータ３６に取り付けられた上下ねじ３７
とホルダ２５と結合されているナット３８によって上下
駆動することができ、リミットスイッチ３９，４川こよ
って上限位置、下限位瞳が設定できる。The above tool is a top and bottom screw 37 attached to a motor 36.
It can be driven up and down by a nut 38 connected to the holder 25, and an upper limit position and a lower limit pupil can be set by a limit switch 39 and four switches.
４１，４２は上下用ガイドで保持枠４３に支持されてお
り、保持枠４３は取り付け座４４と結合されており、案
内装置４に設けられたアタッチメント４８に鉄合される
。41 and 42 are vertical guides supported by a holding frame 43, and the holding frame 43 is coupled to a mounting seat 44, and is iron-coupled to an attachment 48 provided on the guide device 4.
上記取り付け座４４にはロック孔４５があり、ェアピス
トン４６に設けられたロックピン４７の挿入により固定
される。次に上記構成による本発明工具の作用について
述べる。The mounting seat 44 has a lock hole 45, and is fixed by inserting a lock pin 47 provided on the air piston 46. Next, the operation of the tool of the present invention with the above configuration will be described.
案内装置４によって所定の位置に設定された工具は、上
下ねじ３７により上昇する。移動時は工具を下限位置に
設定すれば作業面全域にわたって移動可能である。上昇
した工具は上限リミットスイッチ３９により所定の位置
に設定され、弾性を有するゴムシール２７および吸引ノ
ズル２２は管板面に密着する。The tool set in a predetermined position by the guide device 4 is raised by the upper and lower screws 37. When moving, if the tool is set to the lower limit position, it can be moved over the entire working surface. The raised tool is set at a predetermined position by the upper limit switch 39, and the elastic rubber seal 27 and suction nozzle 22 are brought into close contact with the tube plate surface.
液注入管１６を通して洗浄液を注入すると共に圧力を加
えると洗浄液タンク１５の洗浄液は導管１４及び洗浄液
流離１ １を通ってスプレーノズル８，９より頃霧され
、溶接部７は洗浄される。When the cleaning liquid is injected through the liquid injection pipe 16 and pressure is applied, the cleaning liquid in the cleaning liquid tank 15 passes through the conduit 14 and the cleaning liquid discharge 11 and is atomized by the spray nozzles 8 and 9, and the welded part 7 is cleaned.
同時にモータ１８によって回転筒１２、回転板１０を回
転させればスプレーノズル９も回転するので、接後部は
一様な洗浄作用が行なわれる。同時にノズル２２も回転
する。さらに、同時に吸引孔２６より真空引きを開始す
れば、回転している吸引ノズル２２より洗浄後の洗浄液
が吸引作用により回収される。At the same time, if the rotary tube 12 and the rotary plate 10 are rotated by the motor 18, the spray nozzle 9 will also be rotated, so that the area where the spray nozzle comes into contact will be uniformly cleaned. At the same time, the nozzle 22 also rotates. Furthermore, if evacuation is started from the suction hole 26 at the same time, the cleaning liquid after cleaning is collected by the suction action from the rotating suction nozzle 22.
案内装置４との着脱はアタツチメント４８を介してロッ
クピン４７の作用で容易に行なうことができる。すなわ
ち、取り付け座４４のロック孔４５にロックピ４７を挿
入すれば固定、引き抜けば分離できる。もしこの作業（
取り付け座４４の鼓合）を治具（図示せず）を用いて行
なえば、工具の装着は案内装置に近接することなく可能
となり例えばマンホール部より行なうことができる。本
発明は上記の構成、作用により次のような効果をもって
いる。Attachment and detachment from the guide device 4 can be easily performed via the attachment 48 and by the action of the lock pin 47. That is, by inserting the lock pin 47 into the lock hole 45 of the mounting seat 44, it can be fixed, and by pulling it out, it can be separated. If this task (
If the mounting seat 44 is mounted using a jig (not shown), the tool can be mounted without being close to the guide device, and can be mounted from a manhole, for example. The present invention has the following effects due to the above structure and operation.
｛１１従来手作業によっていた浸透探傷の洗浄処理作業
を機械化して安全かつ迅速にした。{11 The cleaning process for penetrant testing, which was previously done manually, has been mechanized to make it safer and faster.
‘２１ 洗浄作業と拭き取り作業を同時に行なえるので
、洗浄液の付着時間が短かく過洗浄の恐れがなく安定し
た洗浄が行なえる。'21 Since cleaning and wiping operations can be performed at the same time, the adhesion time of the cleaning liquid is short and stable cleaning can be performed without the risk of over-cleaning.
また、作業時間が非常に短縮される。‘３’ 案内装置
との着脱がきわめて容易であり、着脱時間を短縮し、被
曝量の低減を図れる。Also, the working time is greatly reduced. '3' It is extremely easy to attach and detach from the guide device, shortening the attachment and detachment time and reducing the amount of radiation exposure.
また治具による装着を行なえば放射能レベルの高い作用
部に近づく必要がなく、さらに被曝量は低下する。‘４
１上記の案内装置を移動させることにより、所要位置の
洗浄作業が全遠隔で可能となり、被曝量は従釆の数〜数
十分の−となる。Furthermore, if the device is installed using a jig, there is no need to get close to the active area where the radioactivity level is high, further reducing the amount of radiation exposure. '4
1. By moving the above-mentioned guide device, cleaning work at a required location can be performed remotely, and the amount of radiation exposure can be as low as several minutes to several tens of minutes.
【図面の簡単な説明】
第１図は本発明工具をＰＷＲ型原子力プラントの蒸気発
生器に適用した例を示す一部破砕の断面図、第２図は第
１図のＡ部に取付けた本発明工具の詳細を示す断面図、
第３図は第２図におけるＡ矢視の平面図である。
１・・・・・・本体容器、２・・・・・・管板、３・・
・・・・紬管チューブ、４・…・・案内装置、５・・・
・・・マンホール、６・・・・・・プラグ、７・・・・
・・溶接部、８，９・・・・・・スプレー／ズル、１０
・・・・・・回転板、１１・…・・洗浄液流路、Ｉ２…
…回転筒、１３……固定ねじ、１４……導管、１５・・
・・・・洗浄液タンク、１６・・・・・・洗浄液注入管
、１７，１９・・・・・・伝達歯車、１８・・・・・・
モータ、２０・・・・・・磁気センサ、２１・・・・・
・磁石、２２・・・・・・吸引ノズル、２３・・・・・
・真空室、２５・・・・・・ホルダ、２６……吸引孔、
２７……ゴムシール、２８，２９，３０，３１・・・・
・・軸受、３６・・・・・・モータ、３７・…・・上下
ねじ、３９，４０・・・・・・リミットスイッチ、４１
，４２・・・・・・上下用ガイド、４３・・・・・・保
持枠、４……取り付け座、４５…・・・ロック孔、４６
……エアピストン、４７……ロックピン、４８…”・ア
タツチメント器了図
第２図
紫う図[Brief Description of the Drawings] Figure 1 is a partially fractured sectional view showing an example in which the tool of the present invention is applied to a steam generator of a PWR type nuclear power plant, and Figure 2 is a book attached to part A in Figure 1. A sectional view showing details of the invented tool,
FIG. 3 is a plan view taken in the direction of arrow A in FIG. 2. 1...Main container, 2...Tube plate, 3...
...Pongee pipe tube, 4...Guiding device, 5...
... Manhole, 6... Plug, 7...
・・Welding part, 8, 9・・・・・・Spray/Slip, 10
...Rotating plate, 11...Cleaning liquid flow path, I2...
...Rotating tube, 13... Fixing screw, 14... Conduit, 15...
...Cleaning liquid tank, 16...Cleaning liquid injection pipe, 17,19...Transmission gear, 18...
Motor, 20...Magnetic sensor, 21...
・Magnet, 22...Suction nozzle, 23...
・Vacuum chamber, 25...Holder, 26...Suction hole,
27...Rubber seal, 28, 29, 30, 31...
... Bearing, 36 ... Motor, 37 ... Upper and lower screws, 39, 40 ... Limit switch, 41
, 42... Vertical guide, 43... Holding frame, 4... Mounting seat, 45... Lock hole, 46
...Air piston, 47...Lock pin, 48..." Attachment device diagram, Figure 2, Purple diagram
Claims (1)
取付いて歩行移動できる案内用移動装置に、空気作動の
ロツクピンの脱入によつて簡易装着された自動浸透探傷
洗浄工具において、駆動用モータと歯車とによつて回転
可能な回転筒の回転板にふたつのノズル、すなわち回転
の中心位置に位置しプラグ孔に噴出流を向わせるパイプ
状のノズルおよび偏心位置に位置しプラグの溶接部に霧
状に噴霧するスプレーノズル、を配設し、このスプレー
ノズルの対向位置に洗浄液タンクと前記回転板間に設け
た真空室とを連通させ、さらに側部に設けた真空排気用
の吸引孔と結合した吸引ノズルを前記プラグ溶接部に対
向して前記回転板に配設したことを特徴とする、自動浸
透探傷洗浄工具。1. In an automatic penetrant testing cleaning tool that is easily attached to the guide moving device that is attached to the bottom surface of the tube plate of the steam generator of a pressurized water type nuclear power plant and can be moved while walking, the drive motor and There are two nozzles on the rotating plate of the rotary cylinder, which can be rotated by gears: a pipe-shaped nozzle located at the center of rotation and directing the jet stream toward the plug hole, and a pipe-shaped nozzle located eccentrically at the welded part of the plug. A spray nozzle that sprays in a mist form is provided, and a cleaning liquid tank is communicated with a vacuum chamber provided between the rotary plates at a position opposite to the spray nozzle, and a suction hole for evacuation provided on the side. An automatic penetrant flaw detection cleaning tool, characterized in that a coupled suction nozzle is disposed on the rotary plate facing the plug welding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51136283A JPS6026975B2 (en) | 1976-11-15 | 1976-11-15 | Automatic penetrant testing cleaning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51136283A JPS6026975B2 (en) | 1976-11-15 | 1976-11-15 | Automatic penetrant testing cleaning tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5361389A JPS5361389A (en) | 1978-06-01 |
| JPS6026975B2 true JPS6026975B2 (en) | 1985-06-26 |
Family
ID=15171551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51136283A Expired JPS6026975B2 (en) | 1976-11-15 | 1976-11-15 | Automatic penetrant testing cleaning tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026975B2 (en) |
-
1976
- 1976-11-15 JP JP51136283A patent/JPS6026975B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5361389A (en) | 1978-06-01 |
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