JPH05306795A - Inspection pig - Google Patents

Inspection pig

Info

Publication number
JPH05306795A
JPH05306795A JP4111891A JP11189192A JPH05306795A JP H05306795 A JPH05306795 A JP H05306795A JP 4111891 A JP4111891 A JP 4111891A JP 11189192 A JP11189192 A JP 11189192A JP H05306795 A JPH05306795 A JP H05306795A
Authority
JP
Japan
Prior art keywords
pig
type expansion
bellows type
inspection
inspecting
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.)
Pending
Application number
JP4111891A
Other languages
Japanese (ja)
Inventor
Koji Ishihara
耕司 石原
Akira Hagiwara
明 萩原
Tadashi Morimoto
匡 森本
Naoki Kawanishi
直規 川西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Osaka Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Osaka Gas Co Ltd, NKK Corp, Nippon Kokan Ltd filed Critical Osaka Gas Co Ltd
Priority to JP4111891A priority Critical patent/JPH05306795A/en
Publication of JPH05306795A publication Critical patent/JPH05306795A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cleaning In General (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

PURPOSE:To improve the mobility and the shearing strength of inspection pigs, and facilitate the traveling of inspection pigs having even at a bend part of a pipeline with the complex arrangement by connecting plural inspection pigs with bellows type expansion pipes. CONSTITUTION:An inspecting pig 11 is made of steel body, and a seal cup 2 is fitted to an inspecting pig main body 1a, and each inspecting pig 11 is connected to each other by bellows type expansion pipe 4 as a connector. At this stage, the seal cup 2 is used for securing the differential pressure for accelerating the inspecting pig 11, and the inspecting pig is loaded with a sensor 5, a measurer 6, a memory 7, a battery 8, and a measuring roller 9 or the like. The bellows type expansion pipe 4 as a connector is made of stainless steel and formed into the cylindrical shape having the wall surface like accordion, and flanges 10 for connecting the inspecting pig main body 1a is fitted to both ends thereof.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はパイプラインの保守、検
査用のピグに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pig for maintenance and inspection of pipelines.

【0002】[0002]

【従来の技術】従来、多両連結のピグは、図8に示すよ
うに、剛体でできた検査ピグ本体1aにシールカップ2
を取付けた検査ピグ11をコイルバネで構成された連結
器3で連結して構成されている。
2. Description of the Related Art Conventionally, as shown in FIG. 8, a multi-joint pig has a seal cup 2 attached to a rigid inspection pig body 1a.
The inspection pig 11 to which is attached is connected by a connector 3 composed of a coil spring.

【0003】[0003]

【発明が解決しようとする課題】上記のように構成され
た多両連結された検査ピグがパイプラインのベンド管を
通過する場合、図9に示すように、進行方向に対して後
方に連結されたいる検査ピグ11bのシールカップ2が
圧送流体をシールすることにより、後方の検査ピグ11
bが、前方の検査ピグ11aを押すことになる。このと
き、後方の検査ピグ11bの推進力の方向と、前方の検
査ピグ11aが進行する方向が異なることになる。
When the multi-connected test piggy constructed as described above passes through the bend pipe of the pipeline, as shown in FIG. 9, it is connected rearward with respect to the traveling direction. Since the seal cup 2 of the hitting inspection pig 11b seals the pumping fluid, the rear inspection pig 11b
b will push the front inspection pig 11a. At this time, the direction of the propulsive force of the rear inspection pig 11b and the direction in which the front inspection pig 11a travels are different.

【0004】コイルバネで構成された連結器3は、後方
の検査ピグ11bの推進力を前方の検査ピグ11aに伝
達するものであるが、コイルバネは、コイルバネの軸方
向に対して直角方向に作用する力に弱く、図9に示すよ
うな形状になり、塑性変形もしくは破損に至るという問
題がある。この場合、コイルバネの線径を太くして強度
を上げると、可撓性が損なわれ、ベンド部での検査ピグ
の走行性能を難くすることになる。
The coupler 3 composed of a coil spring transmits the propulsive force of the rear inspection pig 11b to the front inspection pig 11a. The coil spring acts in a direction perpendicular to the axial direction of the coil spring. There is a problem in that it is weak against force and has a shape as shown in FIG. 9, leading to plastic deformation or damage. In this case, if the wire diameter of the coil spring is increased to increase the strength, the flexibility is impaired, and the traveling performance of the inspection pig at the bend portion becomes difficult.

【0005】本発明は、上記のような問題点を解決する
ためになされたもので、複雑な配管形状のパイプライン
を容易に走行することができる多両連結の検査ピグを得
ることを課題とするものである。
The present invention has been made to solve the above problems, and an object thereof is to obtain a multi-connection inspection pig that can easily travel in a pipeline having a complicated pipe shape. To do.

【0006】[0006]

【課題を解決するための手段】本発明の検査ピグは、複
数の検査ピグを、ベローズ形伸縮管で連結したことを特
徴とするものである。また、検査ピク本体をベローズ形
伸縮管で構成したことを特徴とするものである。また、
上記ベローズ形伸縮管の内側又は外側に緩衝材が設けら
れている。
The inspection pig of the present invention is characterized in that a plurality of inspection pigs are connected by a bellows type expansion tube. Further, it is characterized in that the main body of the inspection pick is constituted by a bellows type expansion tube. Also,
A cushioning material is provided inside or outside the bellows type expansion tube.

【0007】[0007]

【作用】ベローズ形伸縮管で構成された連結器は、従来
のコイルバネに比較し、可撓性と剪断強度に優れてお
り、複雑な配管形状のパイプラインのベンド部におい
て、多両に連結した検査ピグの走行を容易にすることが
できる。また、検査ピク本体をベローズ形伸縮管で構成
した場合にも、同様の効果を得ることができる。そし
て、ベローズ形伸縮管の内側又は外側に緩衝材を設ける
ことにより、ベローズ形伸縮管の過度の変形を防止する
ことができる。
[Function] The coupler composed of the bellows type expansion tube is superior in flexibility and shear strength as compared with the conventional coil spring, and it is connected to many in the bend part of the pipeline having a complicated pipe shape. The traveling of the inspection pig can be facilitated. The same effect can be obtained even when the inspection pick main body is formed of a bellows type expansion tube. Further, by providing a cushioning material inside or outside the bellows-type expandable tube, excessive deformation of the bellows-type expandable tube can be prevented.

【0008】[0008]

【実施例】以下、本発明の実施例を図面により説明す
る。図1に、検査ピグをベローズ形伸縮管で連結した5
両編成の検査ピグを示す。
Embodiments of the present invention will be described below with reference to the drawings. In Fig. 1, the inspection pigs are connected with a bellows type expansion tube.
The inspection pig of both formations is shown.

【0009】図1において、検査ピグ11は剛体ででき
検査ピグ本体1aにシールカップ2を取付けたものであ
り、それぞれの検査ピグは連結器としてのベローズ形伸
縮管4で連結されている。ここで、シールカップ2は、
検査ピグを推進させるための差圧を確保するために用い
られる。検査ピグには、センサ−5、計測器6、メモリ
7、バッテリー8、メジャーリングローラ9等が搭載さ
れている。
In FIG. 1, the inspection pig 11 is made of a rigid body and has a seal cup 2 attached to the inspection pig main body 1a, and each inspection pig is connected by a bellows type expansion tube 4 as a connector. Here, the seal cup 2 is
Used to ensure a differential pressure to propel the inspection pig. The inspection pig is equipped with a sensor 5, a measuring instrument 6, a memory 7, a battery 8, a measuring roller 9 and the like.

【0010】連結器としてのベローズ形伸縮管4は、図
2に示すように、ステンレス鋼板でアコーディオンのよ
うな壁面をもつ円筒状のものであり、その両端には検査
ピグ本体を連結するためのフランジ10が取付けられて
いる。図3にベローズ形伸縮管の基本的な変位状況を示
す。
As shown in FIG. 2, the bellows type expansion / contraction tube 4 as a connector is a stainless steel plate having a cylindrical shape having a wall surface like an accordion, and both ends thereof are for connecting an inspection pig body. A flange 10 is attached. Figure 3 shows the basic displacement of a bellows type expansion tube.

【0011】(a)は、実線で示したベローズ形伸縮管
が、破線で示すように、軸方向に圧縮された状況を示
す。(b)は、軸と直角方向に変位したときの状況、
(c)は、角変位したときの状況を示している。
(A) shows a situation in which the bellows type expansion tube shown by the solid line is compressed in the axial direction as shown by the broken line. (B) is the situation when displaced in the direction perpendicular to the axis,
(C) shows the situation when angular displacement is performed.

【0012】この場合、図4に示すように、ベローズ形
伸縮管の内側又は外側に、例えばポリウレタンフォーム
もしくはゴム等の緩衝材を設けることにより、ベローズ
形伸縮管の過度の変形を防止することができる。
In this case, as shown in FIG. 4, by providing a cushioning material such as polyurethane foam or rubber inside or outside the bellows type expansion tube, excessive deformation of the bellows type expansion tube can be prevented. it can.

【0013】(a)は、連結器としてのベローズ形伸縮
管4の内側に、中心部を中空にした緩衝材13aを設け
たものであり、(b)は、同じくベローズ形伸縮管4の
内側一杯に緩衝材13bを設けたものである。一方、
(c)は、後述するベローズ形伸縮管で構成された検査
ピグ本体4a等の外側に緩衝材13cを設けたものであ
る。次に、他の実施例を図5に示す。これは、検査ピグ
本体がベローズ形伸縮管で構成された検査ピグ14、1
5を、連結器としてのベローズ形伸縮管4で連結したも
のである。
(A) shows a cushioning material 13a having a hollow central portion provided inside the bellows type expansion tube 4 as a connector, and (b) shows the inside of the bellows type expansion tube 4 similarly. The cushioning material 13b is provided to the full extent. on the other hand,
In (c), a cushioning material 13c is provided on the outside of the inspection pig main body 4a or the like which is composed of a bellows type expansion tube described later. Next, another embodiment is shown in FIG. This is an inspection pig 14, 1 whose inspection pig body is composed of a bellows type expansion tube.
5 are connected by a bellows type expansion / contraction tube 4 as a connector.

【0014】本体がベローズ形伸縮管4aで構成された
検査ピグ14内には、計測器、メモリ、バッテリー等が
搭載されている。検査ピグ15の本体4bは、ベローズ
形伸縮管の中間にフランジ10aを介装して構成され、
このフランジ10aにセンサー5が取付けられている。
A measuring instrument, a memory, a battery, etc. are mounted in the inspection pig 14 whose main body is composed of a bellows type expansion tube 4a. The main body 4b of the inspection pig 15 is configured by interposing a flange 10a in the middle of a bellows type expansion tube,
The sensor 5 is attached to the flange 10a.

【0015】図6に示す他の実施例は、図5と同様に、
本体をベローズ形伸縮管で構成した検査ピグ14、15
を、連結器を介すること無く、相互に連結したものであ
る。この場合、検査ピグ自体が、連結器としての作用を
行う。次に、他の実施例を図7に示す。これは、検査ピ
グ16に複数の検査ピグ15を、連結器を介すること無
く、相互に連結したものである。
Another embodiment shown in FIG. 6 is similar to FIG.
Inspection pigs 14 and 15 whose main body is a bellows type expansion tube
Are connected to each other without using a connector. In this case, the inspection pig itself acts as a connector. Next, another embodiment is shown in FIG. This is a test pig 16 in which a plurality of test pigs 15 are interconnected without a connector.

【0016】検査ピグ16の本体4cは、中間にフラン
ジ10bが介装されたベローズ形伸縮管で構成されてい
る。この検査ピグ16には、計測器、メモリ、バッテリ
ー等が搭載されている。そして上記フランジ10bの周
囲に複数のローラ21を取り付け、検査ピグ16を支持
している。
The main body 4c of the inspection pig 16 is composed of a bellows type expansion tube having a flange 10b in the middle. The inspection pig 16 is equipped with a measuring instrument, a memory, a battery, and the like. A plurality of rollers 21 are attached around the flange 10b to support the inspection pig 16.

【0017】一方、検査ピグ15は、前記と同様な構成
で、本体4bは、ベローズ形伸縮管の中間にフランジ1
0aを介装して構成され、このフランジ10aにセンサ
ー5が取付けられている。
On the other hand, the inspection pig 15 has the same structure as that described above, and the main body 4b has the flange 1 in the middle of the bellows type expansion tube.
The sensor 5 is attached to the flange 10a.

【0018】[0018]

【発明の効果】本発明の検査ピグは上記のようなもの
で、ベローズ形伸縮管で構成された連結器は、従来のコ
イルバネに比較し、可撓性と剪断強度に優れており、複
雑な配管形状のパイプラインのベンド部において、多両
に連結した検査ピグの走行を容易にすることができる。
また、検査ピク本体をベローズ形伸縮管で構成した場合
にも、同様の効果を得ることができる。そして、ベロー
ズ形伸縮管の内側又は外側に緩衝材を設けることによ
り、ベローズ形伸縮管の過度の変形を防止することがで
きる。
The inspection pig of the present invention is as described above, and the coupler constituted by the bellows type expansion tube is superior in flexibility and shear strength to the conventional coil spring, and has a complicated structure. In the bend portion of the pipeline having a pipe shape, it is possible to easily run the test pigs connected to multiple cars.
The same effect can be obtained even when the inspection pick main body is formed of a bellows type expansion tube. Further, by providing a cushioning material inside or outside the bellows-type expandable tube, excessive deformation of the bellows-type expandable tube can be prevented.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の全体構成を示す説明図。FIG. 1 is an explanatory diagram showing the overall configuration of an embodiment of the present invention.

【図2】連結器としてのベローズ形伸縮管の説明図。FIG. 2 is an explanatory view of a bellows type expansion tube as a coupler.

【図3】ベローズ形伸縮管の各種の変位状況説明図。FIG. 3 is an explanatory view of various displacement states of a bellows type expansion tube.

【図4】ベローズ形伸縮管の内側又は外側に緩衝材が設
けられた状態の説明図。
FIG. 4 is an explanatory view of a state in which a cushioning material is provided inside or outside a bellows type expansion tube.

【図5】本発明の他の実施例の全体構成を示す説明図。FIG. 5 is an explanatory diagram showing the overall configuration of another embodiment of the present invention.

【図6】本発明の他の実施例の全体構成を示す説明図。FIG. 6 is an explanatory diagram showing the overall configuration of another embodiment of the present invention.

【図7】本発明の他の実施例の全体構成を示す説明図。FIG. 7 is an explanatory diagram showing the overall configuration of another embodiment of the present invention.

【図8】従来の検査ピグの全体構成を示す説明図。FIG. 8 is an explanatory diagram showing the overall configuration of a conventional inspection pig.

【図9】従来の検査ピグの曲り管での通過状態を示す説
明図。
FIG. 9 is an explanatory view showing a state in which a conventional inspection pig passes through a bent pipe.

【符号の説明】[Explanation of symbols]

4…連結器としてのベローズ形伸縮管,4a、4b、4
c…ベローズ形伸縮管で構成された検査ピグ本体、1
1、14、15、16…検査ピグ、13a、13b、1
3c…緩衝材。
4 ... Bellows type expansion and contraction tube as a connector, 4a, 4b, 4
c ... Inspection pig main body composed of bellows type expansion tube, 1
1, 14, 15, 16 ... Inspection pigs, 13a, 13b, 1
3c ... cushioning material.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 森本 匡 東京都千代田区丸の内一丁目1番2号 日 本鋼管株式会社内 (72)発明者 川西 直規 大阪府大阪市中央区平野町4丁目1番2号 大阪瓦斯株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tadashi Morimoto 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Inori Naoki Kawanishi 4-1-1, Hirano-cho, Chuo-ku, Osaka No. 2 within Osaka Gas Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 複数の検査ピグを、ベローズ形伸縮管で
連結したことを特徴とする検査ピグ。
1. An inspection pig, wherein a plurality of inspection pigs are connected by a bellows type expansion tube.
【請求項2】 検査ピク本体をベローズ形伸縮管で構成
したことを特徴とする検査ピグ。
2. An inspection pig characterized in that the inspection pick body is composed of a bellows type expansion tube.
【請求項3】 ベローズ形伸縮管の内側又は外側に緩衝
材が設けられている請求項1又は2に記載の検査ピグ。
3. The inspection pig according to claim 1 or 2, wherein a cushioning material is provided inside or outside the bellows type expansion tube.
JP4111891A 1992-04-30 1992-04-30 Inspection pig Pending JPH05306795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4111891A JPH05306795A (en) 1992-04-30 1992-04-30 Inspection pig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4111891A JPH05306795A (en) 1992-04-30 1992-04-30 Inspection pig

Publications (1)

Publication Number Publication Date
JPH05306795A true JPH05306795A (en) 1993-11-19

Family

ID=14572735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4111891A Pending JPH05306795A (en) 1992-04-30 1992-04-30 Inspection pig

Country Status (1)

Country Link
JP (1) JPH05306795A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006068739A (en) * 2004-09-02 2006-03-16 Pii Canada Ltd Device for transferring pig through conduit such as pipeline
US9089884B2 (en) 2010-07-20 2015-07-28 Tdw Delaware, Inc. Pipeline debris shearing device
CN110621455A (en) * 2017-05-17 2019-12-27 麻省理工学院 Soft body robot for pipeline tasks
EP3527868A3 (en) * 2018-01-24 2020-01-01 Rosen Swiss AG Pipeline pig
CN113198809A (en) * 2021-05-18 2021-08-03 段宇航 Bellows inner wall cleaning device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006068739A (en) * 2004-09-02 2006-03-16 Pii Canada Ltd Device for transferring pig through conduit such as pipeline
US7975342B2 (en) 2004-09-02 2011-07-12 Pii (Canada) Limited Device for moving a pig through a conduit, such as a pipeline
US9089884B2 (en) 2010-07-20 2015-07-28 Tdw Delaware, Inc. Pipeline debris shearing device
US9505040B2 (en) 2010-07-20 2016-11-29 Tdw Delaware, Inc. Pipeline debris shearing device
CN110621455A (en) * 2017-05-17 2019-12-27 麻省理工学院 Soft body robot for pipeline tasks
EP3527868A3 (en) * 2018-01-24 2020-01-01 Rosen Swiss AG Pipeline pig
CN113198809A (en) * 2021-05-18 2021-08-03 段宇航 Bellows inner wall cleaning device
CN113198809B (en) * 2021-05-18 2022-11-22 中建三局绿色产业投资有限公司 Bellows inner wall cleaning device

Similar Documents

Publication Publication Date Title
US4372161A (en) Pneumatically operated pipe crawler
JPH05306795A (en) Inspection pig
JP3394081B2 (en) Cushion body for propulsion method
JPH08183095A (en) Pipe-lining ball pig
JPH08282479A (en) Bidirectional running device for intra-pipe running pig
JP2591944Y2 (en) Pipe inspection equipment
JP2871244B2 (en) Seal structure of the pig connection part of the inspection pig
JPS61113555A (en) Travelling device in duct
JPS599862Y2 (en) Aids for bending flexible tubes
JPS5911260Y2 (en) flexible rubber tube
JPS6341694U (en)
JP2004180405A (en) Cable protective pipe and its piping method
JPS6332234Y2 (en)
CN2422514Y (en) Telescopic joint for metal pipeline
JPH0230768Y2 (en)
JPH08200574A (en) Universal coupling and attaching structure for it
JPH0728464Y2 (en) Tube for propulsion method
JP2719290B2 (en) Propulsion device for propulsion method
CN101135404A (en) Bearing organ pipe
JPH025957B2 (en)
JPH0311513Y2 (en)
CN2158024Y (en) Seamless straight-pipe section bend
JPS63195192U (en)
JPH025048U (en)
JPH10212897A (en) Connection structure of propulsive pipe