JPH087152B2 - Internal inspection device for closed tanks - Google Patents
Internal inspection device for closed tanksInfo
- Publication number
- JPH087152B2 JPH087152B2 JP2142798A JP14279890A JPH087152B2 JP H087152 B2 JPH087152 B2 JP H087152B2 JP 2142798 A JP2142798 A JP 2142798A JP 14279890 A JP14279890 A JP 14279890A JP H087152 B2 JPH087152 B2 JP H087152B2
- Authority
- JP
- Japan
- Prior art keywords
- camera
- case
- inspection device
- internal inspection
- flexible wire
- 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 - Lifetime
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
【発明の詳細な説明】 （産業上の利用分野） 本発明は、火力発電所，原子力発電所，化学プラント
等において施設されている長尺円筒形状の汽水分離器、
汽水分離器のドレンタンク等の密閉型タンクの内部検査
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a long cylindrical brackish water separator installed in a thermal power plant, a nuclear power plant, a chemical plant, or the like.
The present invention relates to an internal inspection device for a closed tank such as a drain tank of a brackish water separator.
（従来の技術） 従来、火力発電所，原子力発電所，化学プラント等に
おいて多数本施設されて使用に供されている汽水分離器
や汽水分離器のドレンタンク等の密閉型タンクに対する
検査点検作業は、当該長尺円筒状の密閉型タンクの外表
面の長手方向や円周方向の溶接部分を、外部観察手段に
よって検査点検することを通例としている。(Prior art) Conventionally, inspection and inspection work for closed tanks such as brackish water separators and drain tanks of brackish water separators that have been used for many facilities at thermal power plants, nuclear power plants, chemical plants, etc. It is customary to inspect and inspect the welded portion in the longitudinal direction and the circumferential direction of the outer surface of the elongated cylindrical closed tank by an external observation means.
（発明が解決しようとする問題点） ところが、此種の密閉型タンクには、その性質上、繰
り返し高温、高圧の負荷が掛かり、その永年使用に対す
る検査精度の向上を図るには、前記のようなタンク外表
面の検査だけでは本来不充分なものであり、当該長尺円
筒状の密閉型タンクの内部側の溶接部分を、外部から観
察しながら比較的容易に行い得る検査手段が望まれてい
た。(Problems to be solved by the invention) However, due to the nature of this type of sealed tank, repeated high temperature and high pressure loads are applied, and in order to improve the inspection accuracy for long-term use, the above-mentioned problem is to be solved. It is inherently inadequate to inspect only the outer surface of the tank, and there is a demand for an inspection means that can relatively easily perform the observation of the welded portion on the inner side of the long cylindrical sealed tank from the outside. It was
（問題点を解決するための手段） そこで、本発明では、本体ケース１の先端部に、テレ
ビカメラを収容するカメラケース22を出し入れ自在に吊
設し、当該カメラケース22の重心位置から放射方向へ向
かって複数本の線杆25,26を張り出し、その先端部にバ
ランスウエイト27を固定し、本体ケース１の基端部に
は、先端部のカメラケース22を昇降移動させるフレキシ
ブルワイヤＷの巻き取りドラム13を回転可能に支持して
なる密閉型タンクの内部検査装置を提供したのである。(Means for Solving Problems) Therefore, according to the present invention, a camera case 22 accommodating a television camera is hung at the tip of the main body case 1 so that the camera case 22 can be freely taken in and out, and the camera case 22 is radiated from the position of the center of gravity of the camera case 22. A plurality of wire rods 25, 26 are bulged toward the end, a balance weight 27 is fixed to the tip end of the wire rod, and a flexible wire W for moving up and down the camera case 22 at the tip end is wound around the base end of the main body case 1. An internal inspection device for a sealed tank, which rotatably supports the taking drum 13, is provided.
（作用） 而して、汽水分離器，汽水分離器のドレンタンク等に
おける密閉型タンクの上方部と下方部に形成されている
限られた口径を有する枝管部の内、上方部の枝管部から
本発明に係る内部検査装置を導入し、当該検査装置にお
ける本体ケースの先端部に吊設したカメラケースを、タ
ンク内部で自在に昇降移動したり、旋回移動させること
で、タンク内部の縦横方向の溶接線に沿って、カメラケ
ースに収容したテレビカメラを移動せしめ、タンク内部
の状況を外部からテレビジョンでモニターしながら観察
しつつ、それをビデオテープレコーダーに収録すること
により、密閉型タンクの内部検査を円滑迅速且つ確実に
行い得るようにしたのである。(Operation) Thus, of the branch pipe parts having a limited diameter formed in the upper part and the lower part of the closed tank in the brackish water separator, the drain tank of the brackish water separator, etc., the upper branch pipe The internal inspection device according to the present invention is introduced from a section, and the camera case suspended at the tip of the main body case in the inspection device is freely moved up and down or swung in the tank, so that the vertical and horizontal directions inside the tank can be improved. By moving the television camera housed in the camera case along the welding line in the direction and observing the inside of the tank from the outside while observing it on the television, it is recorded in the video tape recorder, so that the sealed tank Therefore, the internal inspection can be performed smoothly, quickly and surely.
以下、本発明に係る密閉型タンクの内部検査装置の実
施例を添付図面に従って説明する。An embodiment of an internal inspection device for a sealed tank according to the present invention will be described below with reference to the accompanying drawings.
（第１実施例） １は直径が10cm程度で長さが90cm程度の円筒状の本体
ケースであって、その前部側の下半部には、当該本体ケ
ース１内に後記のカメラケースを出し入れ自在に収容す
る切り欠き開口部２を形成し、本体ケース１の基端部に
はフランジ３を溶接固定している。(First embodiment) 1 is a cylindrical main body case having a diameter of about 10 cm and a length of about 90 cm, and a camera case, which will be described later, is provided in the main body case 1 in the lower half of the front side thereof. A cutout opening 2 for accommodating in and out is formed, and a flange 3 is welded and fixed to the base end of the main body case 1.
４は固定フランジ３に回転可能に嵌め込んだ回転盤であ
って、その中心位置の後部側に、フレキシブルワイヤＷ
を貫挿する案内ピース５を当接して嵌合し、また、当該
回転盤４を挟んで、その前部側から固定ナット６を案内
ピース５に螺合している。Reference numeral 4 denotes a turntable which is rotatably fitted in the fixed flange 3, and the flexible wire W is attached to the rear side of the center position of the turntable.
A guide piece 5 which is inserted through is abutted and fitted, and the fixed nut 6 is screwed onto the guide piece 5 from the front side of the rotary disk 4 with the guide piece 5 interposed therebetween.
７は固定フランジ３の後部側に固定した端面フランジで
あって、回転盤４を抜落不能に支持している。Reference numeral 7 denotes an end surface flange fixed to the rear side of the fixed flange 3, and supports the rotary disk 4 so that it cannot be pulled out.
8,9は回転盤４の後部側の左右両側位置に、後方へ向か
って突設固定した軸受けであって、その内、一方の軸受
け８の外側にラチェットケース10を固定している。Reference numerals 8 and 9 denote bearings projecting and fixed to the rear at the rear right and left positions on the rear side of the turntable 4, of which the ratchet case 10 is fixed to the outside of one bearing 8.
このラチェットケース10には、ラチェットピン11と、そ
れを付勢するコイルスプリング12が収容されている。The ratchet case 10 accommodates a ratchet pin 11 and a coil spring 12 that urges the ratchet pin 11.
13は軸受け8,9の後端部に回転可能に支持したフレキシ
ブルワイヤＷの巻き取りドラム、14は巻き取りドラム13
の回転軸であって、当該回転軸14にはラチェットギア15
を嵌着固定し、当該ラチェットギア15にラチェットピン
11の後端突出部が噛み合い係合するようにしている。1
6,17は回転軸14の左右両端部に嵌着固定した巻き取り，
巻き戻し用の操作ハンドルである。18は本体ケース１の
先端天井部に軸受け支持したフレキシブルワイヤＷの案
内ローラ,19はフレキシブルワイヤＷのアウターチュー
ブであって、案内ローラ18の後部から案内ピース５にか
けての本体ケース１の内壁面に固定している。13 is a winding drum for the flexible wire W rotatably supported at the rear ends of the bearings 8 and 9, and 14 is a winding drum 13.
The rotation shaft of the ratchet gear 15
Fit and fix the ratchet pin on the ratchet gear 15
The rear end protrusions of the 11 are engaged with each other. 1
6 and 17 are windings that are fitted and fixed on both left and right ends of the rotary shaft 14,
It is an operation handle for rewinding. Reference numeral 18 denotes a guide roller for the flexible wire W bearing-supported by the ceiling of the tip of the body case 1, and 19 denotes an outer tube for the flexible wire W, which is provided on the inner wall surface of the body case 1 from the rear portion of the guide roller 18 to the guide piece 5. It is fixed.
20はフレキシブルワイヤＷの先端金具、21は先端金具20
を枢設する受け金具であって、その下端部に円筒状のカ
メラケース22の略重心位置の上部を連結し、このカメラ
ケース22には円筒状のテレビカメラ（図示せず）が収納
支持され、当該テレビカメラの撮影側に向かって照明す
るランプＬ（図示せず）が必要に応じて取り付けられ
る。20 is a tip fitting of the flexible wire W, 21 is a tip fitting 20
Is a receiving metal fitting for pivotally mounting the upper end of the cylindrical camera case 22 at a substantially center of gravity position, and a cylindrical television camera (not shown) is housed and supported in the camera case 22. A lamp L (not shown) that illuminates toward the shooting side of the television camera is attached as necessary.
23,24は受け金具21とカメラケース22との間に介在させ
た円盤状のクランプ金具、25,26は基端部をクランプ金
具23,24に挟着固定したピアノ線の線杆であって、クラ
ンプ金具23,24から放射方向へ３本程度の等長な線杆25,
26を張り出して突設支持し、その先端部に適度な重さの
バランスウエイト27を取着している。23 and 24 are disc-shaped clamp metal fittings interposed between the receiving metal fitting 21 and the camera case 22, and 25 and 26 are piano wire rods whose base ends are clamped and fixed to the clamp metal fittings 23 and 24. , From the clamp metal fittings 23, 24 to the radial direction about three linear rods 25,
26 is projected and supported protrudingly, and a balance weight 27 of an appropriate weight is attached to the tip thereof.
而して、本発明に係る検査装置のカメラケース22にテ
レビカメラ（図示せず）を収納支持した上で、当該カメ
ラケース22とその線杆25,26と、バランスウエイト27
を、本体ケース１の開口部２に抱持して収納した状態に
予めセットする。Thus, after the television camera (not shown) is housed and supported in the camera case 22 of the inspection device according to the present invention, the camera case 22 and its wire rods 25 and 26, and the balance weight 27
Is set in a state of being held and held in the opening 2 of the main body case 1.
その上で、第５図に示すような長尺な汽水分離器のドレ
ンタンクＴ、例えば、12,13M〜24,25M程度の長さのある
密閉型ドレンタンクＴの上方部の比較的限られた口径の
枝管部U1、例えば、その口径が10cm程度の枝管部U1か
ら、本発明の検査装置を、本体ケース１ごとその先端部
から適宜の長さL1挿通する。In addition, the drain tank T of a long brackish water separator as shown in FIG. 5, for example, the upper portion of a closed drain tank T having a length of about 12,13M to 24,25M is relatively limited. branch pipe part U 1 of the diameter was, for example, from the branch pipe part U 1 its diameter is about 10 cm, the test device of the present invention, appropriate lengths L 1 inserted from the distal end portion of the main body case 1 Gotoso.
その距離は、本体ケース１の先端部から垂れ下がるフレ
キシブルワイヤＷのワイヤ中心が、ドレンタンクＴの略
中心位置になる挿通距離L1を考慮してセットされる。The distance is set in consideration of the insertion distance L 1 at which the wire center of the flexible wire W hanging from the tip of the main body case 1 becomes the substantially central position of the drain tank T.
勿論、本体ケース１の後部側の外周面に、予め、本体ケ
ース１の挿通距離L1の目安とする目盛り28を描出した
り、刻設しておけば便利である。その上で、先ず、フレ
キシブルワイヤＷの操作ハンドル16,17を巻き戻し操作
すると、テレビカメラを収容したカメラケース22と、先
端部にバランスウエイト27を固定した線杆25,26が、本
体ケース１の開口部２から離脱して降下しはじめ、更
に、フレキシブルワイヤＷの徐々に巻き戻すことによ
り、テレビカメラを収容したカメラケース22は、線杆2
5,26とその先端部のバランスウエイト27とで振れ止め案
内されながら、略水平状態に安定的に保持されて降下す
る。即ち、フレキシブルワイヤＷの巻き戻しに伴って、
テレビカメラを収容したカメラケース22には、僅かな横
振れが生ずるが、線杆25,26の先端部のバランスウエイ
ト27が、ドレンタンクＴの内壁面に適度に触接案内され
ながら適度にバランスすることで、テレビカメラに対す
る振れ止め機能が発揮されつつ徐々に安定的に降下す
る。Of course, it is convenient to draw or engrave the scale 28, which is a guide for the insertion distance L 1 of the main body case 1, in advance on the outer peripheral surface on the rear side of the main body case 1. Then, first, when the operation handles 16 and 17 of the flexible wire W are unwound, the camera case 22 accommodating the TV camera and the wire rods 25 and 26 having the balance weight 27 fixed to the tip end thereof are inserted into the main body case 1. When the flexible wire W is gradually rewound, the camera case 22 accommodating the television camera can be separated from the opening 2 of the
While being guided by the steady weights 5, 26 and the balance weight 27 at the tip end thereof, they are stably held in a substantially horizontal state and descend. That is, as the flexible wire W is rewound,
The camera case 22 accommodating the television camera is slightly laterally shaken, but the balance weight 27 at the tips of the wire rods 25 and 26 is appropriately balanced while being properly touched and guided by the inner wall surface of the drain tank T. By doing so, the steady rest is gradually lowered while exhibiting the steady rest function for the TV camera.
当然ながら、此種のドレンタンクＴには、その内壁面の
縦方向に上下溶接線Ｘが、また、内壁面の円周方向の溶
接線Ｙが形成され、通常、この縦横方向の溶接線X,Yの
近傍におけるクラックの有無を確認検査すること要請さ
れる。As a matter of course, in this type of drain tank T, a vertical welding line X is formed in the longitudinal direction of the inner wall surface, and a circumferential welding line Y is formed in the inner wall surface. , Y is required to confirm and inspect for cracks.
その内、円周方向の溶接線Ｙに対しては、テレビカメラ
をその溶接線Ｙの位置まで降下させた後、フレキシブル
ワイヤＷの操作ハンドル16,17を回転操作するのではな
く、巻き取りドラム13を含む操作ハンドル16,17の全体
を、本体ケース１に対して第２図のＡ矢視方向へ回転操
作することで回転盤４が回転し、先端部にカメラケース
22を吊設したフレキシブルワイヤＷに、適度な旋回力が
付与され、これにて適宜の高さ位置にある円周方向の溶
接線Ｙの近傍におけるクラックの有無が検査される。Regarding the welding line Y in the circumferential direction, after the television camera is lowered to the position of the welding line Y, the operation handles 16 and 17 of the flexible wire W are not rotated, but rather the winding drum. By rotating the entire operation handles 16 and 17 including 13 in the direction of arrow A in FIG. 2 with respect to the main body case 1, the turntable 4 rotates, and the camera case is attached to the tip.
An appropriate turning force is applied to the flexible wire W on which the 22 is hung, and the presence or absence of cracks is inspected in the vicinity of the circumferential welding line Y at an appropriate height position.
また、上下方向の溶接線Ｘに対しては、その溶接線Ｘに
向かってカメラケース22を旋回操作した上で、巻き取り
ドラム13の操作ハンドル16,17を操作して、フレキシブ
ルワイヤＷを巻き戻したり、巻き上げることにより、上
下縦方向の溶接線Ｘの近傍におけるクラックの有無が検
査される。With respect to the welding line X in the vertical direction, after turning the camera case 22 toward the welding line X, the operation handles 16 and 17 of the winding drum 13 are operated to wind the flexible wire W. By returning or winding up, the presence or absence of cracks in the vicinity of the weld line X in the vertical direction is inspected.
これが外部のテレビジョン（TV）にモニターされ、更
に、ビデオテープレコーダー（VTR）に収録すること
で、此種の密閉型タンクＴに対する内部検査の目的が達
成される。This is monitored by an external television (TV) and further recorded on a video tape recorder (VTR), so that the purpose of the internal inspection for the sealed tank T of this kind is achieved.
（その他の実施例） 前記の実施例を示す内部検査装置の場合には、操作ハ
ンドル16,17を人為的に回転して、フレキシブルワイヤ
Ｗを巻き戻したり、巻き取ることにより、カメラケース
22の昇降移動に対処すると共に、巻き取りドラム13を含
む操作ハンドル16,17の全体を、本体ケース１に対して
回転操作し、これにてフレキシブルワイヤＷに捻りを付
与することで、フレキシブルワイヤＷの先端部のカメラ
ケース22が旋回するようにしたが、その内、前者の操作
ハンドル16,17による人為的な操作の必要性を排除し、
遠隔操作による制御に対処するに、先ず、一方の操作ハ
ンドル17に代えて、第２図の想像線や第６図の第２実施
例を示す図面のように、巻き取りドラム13の回転軸14に
駆動モータM1を直結するか、或は、間接的に取り付け、
当該駆動モータM1によって回転軸14が正逆回転するよう
にすることもできる。また、フレキシブルワイヤＷに捻
りを付与することで、カメラケース22を旋回せしめる
に、第１実施例のような人為的な回転操作の必要性に代
えて、第６図に示すように、回転盤４の後部側に従動プ
ーリ29を設け、本体ケース１の基端部の固定フランジ３
や端面フランジ７の外周適所に駆動モータM2を設け、当
該駆動モータM2に嵌着した駆動プーリ30と従動プーリ29
との間にベルト31を掛架し、当該駆動モータM2を遠隔操
作によって正逆回転するようにすることもできる。或
は、第５図の想像線に示すように、フレキシブルワイヤ
Ｗの先端部に吊設したカメラケース22を、フレキシブル
ワイヤＷに直に吊設した旋回用駆動モータM3によって旋
回せしめることで、その遠隔操作に対処することもでき
る。(Other Embodiments) In the case of the internal inspection apparatus showing the above-mentioned embodiment, the operation handles 16 and 17 are artificially rotated to rewind or wind up the flexible wire W, so that the camera case
The flexible wire W is twisted by rotating the entire operation handles 16 and 17 including the winding drum 13 with respect to the main body case 1 while coping with the vertical movement of the flexible wire 22. Although the camera case 22 at the tip of W is made to rotate, the necessity of artificial operation by the former operation handles 16 and 17 is eliminated,
In order to deal with the control by remote control, first, in place of the one operation handle 17, the rotary shaft 14 of the winding drum 13 is changed as shown in the imaginary line of FIG. 2 and the drawing of the second embodiment of FIG. Drive motor M 1 directly or indirectly attached to
The rotation shaft 14 can be rotated forward and backward by the drive motor M 1 . Further, in order to rotate the camera case 22 by imparting a twist to the flexible wire W, instead of the necessity of the artificial rotation operation as in the first embodiment, as shown in FIG. 4 is provided with a driven pulley 29 on the rear side, and the fixed flange 3 at the base end of the main body case 1 is provided.
A drive motor M 2 is provided at a proper position on the outer circumference of the end face flange 7 and the drive pulley 30 and the driven pulley 29 fitted to the drive motor M 2.
It is also possible to hang a belt 31 between and and rotate the drive motor M 2 forward and backward by remote control. Alternatively, as shown by the imaginary line in FIG. 5, the camera case 22 suspended at the tip of the flexible wire W is swung by the swiveling drive motor M 3 directly suspended on the flexible wire W. The remote operation can be dealt with.
（発明の効果） 本発明は、前記のように、本体ケース１の先端部に、
テレビカメラを収容するカメラケース22を出し入れ自在
に吊設し、当該カメラケース22の重心位置から放射方向
へ向かって複数本の線杆25,26を張り出し、その先端部
にバランスウエイト27を固定し、本体ケース１の基端部
には、先端部のカメラケース22を昇降移動させるフレキ
シブルワイヤＷの巻き取りドラム13を回転可能に支持し
てなる密閉型タンクの内部検査装置を提供したので、火
力発電所，原子力発電所，化学プラント等において多数
本施設されて使用に供されている汽水分離器や汽水分離
器のドレンタンク等の密閉型タンクにおける内部検査を
円滑迅速、且つ、確実に行うことができ、此種の定期点
検作業時における作業効率を飛躍的に向上せしめる等の
諸効果を齎す。(Effects of the Invention) As described above, the present invention provides the tip of the main body case 1 with
A camera case 22 accommodating a television camera is hung so that it can be freely taken in and out, a plurality of wire rods 25 and 26 are projected from the center of gravity of the camera case 22 in the radial direction, and a balance weight 27 is fixed to the tip end thereof. At the base end of the main body case 1, an internal inspection device for a sealed tank is provided, which rotatably supports a winding drum 13 of a flexible wire W for moving the camera case 22 at the front end up and down. To smoothly and swiftly and reliably perform internal inspections in closed tanks such as brackish water separators and drain tanks of brackish water separators that are used in many facilities at power plants, nuclear power plants, chemical plants, etc. This can bring about various effects such as dramatically improving work efficiency during this type of regular inspection work.
【図面の簡単な説明】 第１図は本発明における第１実施例の内部検査装置を示
す正面図、第２図は本体ケースの基端部を示す右側面
図、第３図は本体ケースの先端部を示す左側面図、第４
図は本体ケースの基端部を示す横断平面図、第５図は使
用状態を示す概要図、第６図は巻き取りドラムの回転と
カメラケースの旋回を遠隔操作する場合の実施例を示す
縦断平面図である。 符号表 Ｔ……密閉型タンク、Ｗ……フレキシブルワイヤ １……本体ケース、２……開口部 ３……固定フランジ、４……回転盤 ５……案内ピース、６……固定ナット ７……端面フランジ、8,9……軸受け 10……ラチェットケース、11……ラチェットピン 12……コイルスプリング、13……巻き取りドラム 14……回転軸、15……ラチェットギア 16,17……操作ハンドル、18……案内ローラ 19……アウターチューブ、20……先端金具 21……受け金具、22……カメラケース 23,24……クランプ金具、25,26……線杆 27……バランスウエイト、28……目盛り 29……従動プーリ、30……駆動プーリ 31……ベルトBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an internal inspection apparatus according to a first embodiment of the present invention, FIG. 2 is a right side view showing a base end portion of a body case, and FIG. 3 is a body case. Left side view showing the tip, 4th
FIG. 5 is a cross-sectional plan view showing the base end portion of the main body case, FIG. 5 is a schematic view showing a use state, and FIG. 6 is a longitudinal section showing an embodiment in which the rotation of the winding drum and the rotation of the camera case are remotely controlled. It is a top view. Code table T: Sealed tank, W: Flexible wire 1 ... Main body case, 2 ... Opening part, 3 ... Fixed flange, 4 ... Rotating plate, 5 ... Guide piece, 6 ... Fixed nut, 7 ... End face flange, 8,9 …… Bearing 10 …… Ratchet case, 11 …… Ratchet pin 12 …… Coil spring, 13 …… Winding drum 14 …… Rotary shaft, 15 …… Ratchet gear 16,17 …… Operating handle , 18 ...... Guide roller 19 …… Outer tube, 20 …… Tip fitting 21 …… Receiving fitting, 22 …… Camera case 23,24 …… Clamp fitting, 25, 26 …… Wire rod 27 …… Balance weight, 28 …… Scale 29 …… Drive pulley, 30 …… Drive pulley 31 …… Belt
Claims (7)
ラを収容するカメラケース（22）を出し入れ自在に吊設
し、当該カメラケース（22）の重心位置から放射方向へ
向かって複数本の線杆（25），（26）を張り出し、その
先端部にバランスウエイト（27）を固定し、本体ケース
（１）の基端部には、先端部のカメラケース（22）を昇
降移動させるフレキシブルワイヤＷの巻き取りドラム
（13）を回転可能に支持したことを特徴とする密閉型タ
ンクの内部検査装置。1. A camera case (22) for accommodating a television camera is hung at the tip of a main body case (1) so that it can be freely taken in and out, and a plurality of camera cases (22) are radiated from the center of gravity of the camera case (22) in the radial direction. The wire rods (25) and (26) are extended, the balance weight (27) is fixed to the tip end thereof, and the camera case (22) at the tip end is moved up and down to the base end of the body case (1). An internal inspection device for a sealed tank, wherein a winding drum (13) for a flexible wire W is rotatably supported.
6），（17）によって回転操作してなる請求項第１項に
記載の密閉型タンクの内部検査装置。2. The winding drum (13) is provided with an operation handle (1
6. The internal inspection device for a sealed tank according to claim 1, which is rotated by 6) and (17).
を嵌め込み、当該回転盤（４）に巻き取りドラム（13）
を軸受け支持し、本体ケース（１）に対して巻き取りド
ラム（13）を回転させることにより、フレキシブルワイ
ヤＷに吊設したカメラケース（22）を旋回させてなる請
求項第１項又は第２項に記載の密閉型タンクの内部検査
装置。3. A turntable (4) at the base end of the body case (1).
Insert the drum into the turntable (4) and wind the drum (13).
The camera case (22) suspended from the flexible wire W is swung by supporting the bearing and supporting the main body case (1) to rotate the winding drum (13). The internal inspection device for a sealed tank according to the item.
って正逆回転してなる請求項第１項又は第３項に記載の
密閉型タンクの内部検査装置。4. The sealed tank internal inspection device according to claim 1 or 3, wherein the winding drum (13) is rotated forward and backward by a drive motor M1.
させることにより、フレキシブルワイヤＷに吊設したカ
メラケース（22）を旋回させてなる請求項第３項に記載
の密閉型タンクの内部検査装置。5. The closed mold according to claim 3, wherein the camera case (22) suspended on the flexible wire W is rotated by rotating the turntable (4) by a turning drive motor M 2. Internal inspection device for tanks.
カメラケース（22）を、フレキシブルワイヤＷに吊設し
た旋回用駆動モータM3によって旋回させてなる請求項第
３項に記載の密閉型タンクの内部検査装置。6. The hermetically sealed type as set forth in claim 3 , wherein the camera case (22) suspended from the distal end of the flexible wire W is swung by a swiveling drive motor M 3 suspended from the flexible wire W. Internal inspection device for tanks.
ラを収容するカメラケース（22）を出し入れ自在に吊設
し、当該カメラケース（22）の重心位置から放射方向へ
向かって複数本の線杆（25），（26）を張り出し、その
先端部にバランスウエイト（27）を固定し、本体ケース
（１）の基端部に回転盤（４）を回転可能に支持し、当
該回転盤（４）にフレキシブルワイヤＷの巻き取りドラ
ム（13）を回転可能に軸受け支持し、前記の回転盤
（４）を回転操作することにより、フレキシブルワイヤ
Ｗに吊設したカメラケース（22）が旋回するように構成
したことを特徴とする密閉型タンクの内部検査装置。7. A camera case (22) for accommodating a television camera is suspended from the tip of the main body case (1) so that the camera case can be freely taken in and out, and a plurality of camera cases (22) are radiated from the center of gravity of the camera case (22) in the radial direction. Of the wire rods (25) and (26) are projected, the balance weight (27) is fixed to the tip end thereof, and the turntable (4) is rotatably supported at the base end of the main body case (1). A flexible drum W winding drum (13) is rotatably supported on the board (4), and the camera case (22) suspended on the flexible wire W is rotated by rotating the rotary board (4). An internal inspection device for a sealed tank, which is configured to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2142798A JPH087152B2 (en) | 1990-05-31 | 1990-05-31 | Internal inspection device for closed tanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2142798A JPH087152B2 (en) | 1990-05-31 | 1990-05-31 | Internal inspection device for closed tanks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0436645A JPH0436645A (en) | 1992-02-06 |
| JPH087152B2 true JPH087152B2 (en) | 1996-01-29 |
Family
ID=15323874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2142798A Expired - Lifetime JPH087152B2 (en) | 1990-05-31 | 1990-05-31 | Internal inspection device for closed tanks |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087152B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101281141B1 (en) * | 2012-04-10 | 2013-07-08 | 서울검사 주식회사 | Inner wall surface inspection device of vessel |
-
1990
- 1990-05-31 JP JP2142798A patent/JPH087152B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0436645A (en) | 1992-02-06 |
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