JP3242642B2 - Method of feeding objects in a pipe - Google Patents
Method of feeding objects in a pipeInfo
- Publication number
- JP3242642B2 JP3242642B2 JP07917390A JP7917390A JP3242642B2 JP 3242642 B2 JP3242642 B2 JP 3242642B2 JP 07917390 A JP07917390 A JP 07917390A JP 7917390 A JP7917390 A JP 7917390A JP 3242642 B2 JP3242642 B2 JP 3242642B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- suction
- diameter portion
- pump
- feeding
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、縮径部分を有する管内において、ライニン
グ用や通線用の弾性の物体を流体圧により移動させる管
内での物体送り方法に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object feeding method in a pipe that moves an elastic object for lining or a wire through fluid pressure in a pipe having a reduced diameter portion.
従来、第３図（イ）に示すように、管（１）の一端部
から物体（３）を入れて、その一端部に送風機（10）を
接続し、送風機（10）による加圧のみで物体（３）を移
動させていた。Conventionally, as shown in FIG. 3 (a), an object (3) is inserted from one end of a pipe (1), and a blower (10) is connected to one end of the pipe (1), and only pressure is applied by the blower (10). The object (3) was moving.
しかし、第３図（ロ）に示すように、縮径部（1c）に
おいて、前記縮径部（1c）における物体（３）の移動に
対する抵抗と背圧とにより前記物体（３）が管（１）の
前記縮径部（1c）手前側に強く押付けられて、前記物体
（３）が送り方向に押し縮められる結果、前記管（１）
を閉塞する状態に変形し、殊に前記縮径部（1c）におけ
る管径の変化が大きいと、物体移動が困難あるいは不可
能になるおそれがあった。However, as shown in FIG. 3 (b), in the reduced diameter portion (1c), the object (3) is connected to the pipe ( As a result of being strongly pressed toward the near side of the reduced diameter portion (1c) of 1), the object (3) is compressed in the feed direction, and as a result, the pipe (1)
When the tube is deformed to a closed state, and particularly when the diameter of the pipe in the reduced diameter portion (1c) is large, the movement of the object may be difficult or impossible.
本発明の目的は、たとえ管径の変化が大きくても、縮
径部における物体移動を確実に円滑に実現できるように
する点にある。An object of the present invention is to make it possible to surely and smoothly realize the movement of an object in a reduced diameter portion even if a change in a pipe diameter is large.
本発明の特徴手段は、 縮径がある管の内部で物体を流体圧により移動させる
に、 前記管の大径側の一端部から前記物体を入れて、その
一端部にポンプの吐出部に接続した吐出路を接続すると
共に、前記管の他端部にポンプの吸入部に接続した吸入
路を接続し、 前記物体を流体圧により前記縮径部の手前まで移動さ
せ、 少なくとも前記物体が前記縮径部を通過する時に、前
記吸入路を介して前記管内の前記他端部側を減圧し、そ
の吸引力を前記物体に作用させた状態で前記物体を前記
他端部側に送り込みつつ、前記吸引力と前記管の内壁か
らの反力とによって、前記物体を、前記他端部側の部位
から順次前記管の径方向に縮径するように変形させ、 その後、前記物体を流体圧により前記管の他端部まで
移動させることにあり、その作用効果は次の通りであ
る。尚、前記管に接続する吐出路及び吸入路を、１台の
真空ポンプの吐出部及び吸入部に接続する場合にはその
作用効果を高めることができる。The feature of the present invention is to move an object by fluid pressure inside a pipe having a reduced diameter, put the object from one end of the large diameter side of the pipe, and connect the one end to the discharge part of the pump And the other end of the pipe is connected to a suction path connected to a suction part of a pump, and the object is moved to a position short of the reduced diameter portion by fluid pressure, and at least the object is compressed. When passing through the diameter portion, the other end side in the pipe is depressurized through the suction path, and while the suction force is applied to the object, the object is sent to the other end side, By the suction force and the reaction force from the inner wall of the tube, the object is deformed so as to sequentially reduce the diameter in the radial direction of the tube from a portion on the other end side. Moving to the other end of the tube It is as follows. When the discharge path and the suction path connected to the pipe are connected to the discharge section and the suction section of one vacuum pump, the operation and effect can be enhanced.
物体が縮径部を通過する時に、管内のうち物体の前方
側を減圧して、物体に吸引力を付与するから、物体は前
記前方側に引き込まれ、引き込まれた部分は送り方向に
引き延ばされる結果、物体を前方側から順次円滑に縮径
変形させることができ、第３図（ロ）に示す従来の不都
合な現象を確実に防止でき、物体の縮径部通過を円滑に
実現できる。When the object passes through the reduced diameter portion, the front side of the object in the tube is decompressed to apply suction force to the object, so that the object is retracted to the front side, and the retracted portion is elongated in the feed direction. As a result, the object can be smoothly and gradually reduced in diameter from the front side, and the conventional disadvantageous phenomenon shown in FIG. 3B can be reliably prevented, and the object can be smoothly passed through the reduced diameter portion.
その結果、ライニングや通線のための弾性の物体を、
たとえ縮径が大きくても、管の縮径部により阻害される
ことなく確実に円滑移動できる、一段と便利な管内での
物体送り方法を確立できた。As a result, elastic objects for linings and
Even if the diameter reduction is large, a more convenient object feeding method in the pipe has been established that can move smoothly without being hindered by the reduced diameter portion of the pipe.
次に、第１図により実施例を示す。 Next, an embodiment is shown in FIG.
第１図（イ）に示すように、大径部（1a）と小径部
（1b）を縮径部（1c）で接続した管（１）において、大
径部（1a）に適量の液状ライニング材（２）を入れ、管
（１）の内径変化とライニング厚さに見合った弾性変形
特性を有する物体（３）を、ライニング材（２）の後方
に位置させて大径部（1a）に入れる。As shown in FIG. 1 (a), in the pipe (1) in which the large diameter portion (1a) and the small diameter portion (1b) are connected by the reduced diameter portion (1c), an appropriate amount of liquid lining is applied to the large diameter portion (1a). The material (2) is put, and the object (3) having the elastic deformation characteristic corresponding to the change in the inner diameter of the pipe (1) and the lining thickness is positioned behind the lining material (2), and the large-diameter portion (1a) is placed. Put in.
管（１）の両端を蓋体（４）で閉じ、真空ポンプ
（５）の吐出路（６）を大径部（1a）にかつ真空ポンプ
（５）の吸入路（７）を小径部（1b）に接続する。Both ends of the pipe (1) are closed with the lid (4), the discharge path (6) of the vacuum pump (5) is connected to the large diameter section (1a), and the suction path (7) of the vacuum pump (5) is connected to the small diameter section ( Connect to 1b).
真空ポンプ（５）を作動させて、１台の真空ポンプ
（５）によって物体（３）の後方を加圧すると共に物体
（３）の前方を減圧し、物体（３）を前後の差圧により
管（１）内で移動させ、物体（３）によりライニング材
（２）を押し流して管（１）の内面に塗布する。The vacuum pump (5) is operated to pressurize the rear of the object (3) and depressurize the front of the object (3) with one vacuum pump (5). The lining material (2) is moved inside the pipe (1) by the object (3) and applied to the inner surface of the pipe (1).
縮径部（1c）を物体（３）が通過する時、第１図
（ロ）に示すように、小径部（1b）の減圧に起因する吸
引力の作用によって物体（３）を通過しやすい形状に変
形させ、物体（３）を円滑に移動させる。When the object (3) passes through the reduced diameter portion (1c), as shown in FIG. 1 (b), it easily passes through the object (3) due to the action of the suction force caused by the reduced pressure of the small diameter portion (1b). The object (3) is deformed into a shape and moves smoothly.
第１図（ハ）に示すように、管（１）の全長にわたる
ライニング処理が完了すれば、蓋体（４）を外して、小
径部（1b）から余剰のライニング材（２）と物体（３）
を回収する。As shown in FIG. 1 (c), when the lining process over the entire length of the pipe (1) is completed, the lid (4) is removed, and the excess lining material (2) and the object ( 3)
Collect.
次に別の実施例を説明する。 Next, another embodiment will be described.
ライニング材（２）は常温硬化型、熱硬化型、その他
いかなるものでもよい。The lining material (2) may be a room temperature curing type, a thermosetting type, or any other material.
物体（３）は、管内清掃具、管内検査装置などを管内
に通すための通線を通すものであってもよく、また、物
体（３）の形状は、単球状、砲弾状等、その他適当に変
形でき、また、物体（３）の材質や構造等も適宜選択で
きる。The object (3) may pass through a pipe for passing an in-pipe cleaning tool, an in-pipe inspection device, or the like into the pipe, and the shape of the object (3) may be a monosphere, a bullet, or the like. And the material and structure of the object (3) can be appropriately selected.
物体（３）を移動させるに利用する流体の種類は、い
かなるガス又は液体であってもよい。The type of fluid used to move the object (3) may be any gas or liquid.
ポンプ（５）を１台にすると作業性、動力節減におい
て有利であるが、吐出と吸入を各別のポンプで行っても
よい。Although one pump (5) is advantageous in terms of workability and power saving, discharge and suction may be performed by separate pumps.
ポンプ（５）による管内減圧は、少なくとも物体
（３）が縮径部（1c）を通過する時に実行すればよく、
その時に管内加圧を弱くしたり停めてもよい。その他の
タイミングでは管内減圧を適宜停止してもよい。The pressure reduction in the pipe by the pump (5) may be performed at least when the object (3) passes through the reduced diameter portion (1c),
At that time, the pressurization in the pipe may be weakened or stopped. At other timings, the pressure reduction in the pipe may be appropriately stopped.
対象とする管（１）は、都市ガス用、天然ガス用、水
道用等の既設導管が一般的であり、殊に埋設導管が好適
であるが、その他いかなるものでもよい。例えば、第２
図に示すように、本支管（８）をライニング処理した後
で、縮径部（1c）がある分岐管（１）をライニング処理
する場合に、本発明の技術を利用してもよい。この場
合、本支管（８）の一端を蓋体（９）で閉じてポンプ
（５）による本支管（８）の減圧を可能にする。The target pipe (1) is generally an existing pipe for city gas, natural gas, water supply, etc., and is particularly preferably a buried pipe, but may be any other pipe. For example, the second
As shown in the drawing, the technique of the present invention may be used when the branch pipe (1) having the reduced diameter portion (1c) is lined after the main pipe (8) is lined. In this case, one end of the main pipe (8) is closed with the lid (9) to enable the pump (5) to reduce the pressure of the main pipe (8).
尚、特許請求の範囲の項に図面との対照を便利にする
為に符号を記すが、該記入により本発明は添付図面の構
造に限定されるものではない。In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure shown in the attached drawings.
第１図（イ）ないし（ハ）は本発明の実施例における施
工手順の概念図である。第２図は本発明の別実施例を示
す概念図である。第３図（イ）及び（ロ）は従来例の説
明図である。 （１）……管、（1c）……縮径部、（２）……ライニン
グ材、（３）……物体、（５）……ポンプ、（６）……
吐出路、（７）……吸入路。1 (a) to 1 (c) are conceptual diagrams of a construction procedure in an embodiment of the present invention. FIG. 2 is a conceptual diagram showing another embodiment of the present invention. FIGS. 3A and 3B are explanatory diagrams of a conventional example. (1) ... pipe, (1c) ... reduced diameter part, (2) ... lining material, (3) ... object, (5) ... pump, (6) ...
Discharge path, (7) ... suction path.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−180781（ＪＰ，Ａ) 特開 昭63−270580（ＪＰ，Ａ) 特開 平２−9474（ＪＰ，Ａ) 特開 平１−171681（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-180781 (JP, A) JP-A-63-270580 (JP, A) JP-A-2-9474 (JP, A) JP-A-1- 171681 (JP, A)
Claims (4)
弾性の物体（３）を流体圧により移動させる管内での物
体送り方法であって、 前記管（１）の大径側の一端部から前記物体（３）を入
れて、その一端部にポンプ（５）の吐出部に接続した吐
出路（６）を接続すると共に、前記管（１）の他端部に
ポンプ（５）の吸入部に接続した吸入路（７）を接続
し、 前記物体（３）を流体圧により前記縮径部（1c）の手前
まで移動させ、 少なくとも前記物体（３）が前記縮径部（1c）を通過す
る時に、前記吸入路（７）を介して前記管（１）内の前
記他端部側を減圧し、その吸引力を前記物体（３）に作
用させた状態で前記物体（３）を前記他端部側に送り込
みつつ、前記吸引力と前記管（１）の内壁からの反力と
によって、前記物体（３）を、前記他端部側の部位から
順次前記管（１）の径方向に縮径するように変形させ、 その後、前記物体（３）を流体圧により前記管（１）の
他端部まで移動させる管内での物体送り方法。An object feeding method in a pipe for moving an elastic object (3) by fluid pressure in a pipe (1) having a reduced diameter portion (1c), wherein the pipe (1) has a large diameter side. The object (3) is inserted from one end of the pump (5), a discharge path (6) connected to a discharge part of the pump (5) is connected to one end of the object (3), and a pump (5) is connected to the other end of the pipe (1). ) Is connected to the suction passage (7) connected to the suction portion, and the object (3) is moved to a position short of the reduced diameter portion (1c) by fluid pressure, and at least the object (3) is moved to the reduced diameter portion (1c). When passing through 1c), the other end of the pipe (1) is depressurized through the suction passage (7), and the suction force is applied to the object (3). The object (3) is moved forward by the suction force and the reaction force from the inner wall of the tube (1) while feeding the object (3) to the other end side. The pipe (1) is sequentially deformed so as to be reduced in diameter in the radial direction from a portion on the other end side, and then the object (3) is moved to the other end of the pipe (1) by fluid pressure. Object feeding method.
にライニング材（２）を塗布する請求項１記載の管内で
の物体送り方法。2. The method for feeding an object in a pipe according to claim 1, wherein a lining material (2) is applied to an inner surface of the pipe (1) by the object (3).
を通す請求項１記載の管内での物体送り方法。3. The method according to claim 1, wherein the object (3) passes through the pipe (1).
吸入路（７）を、１台の真空ポンプ（５）の吐出部及び
吸入部に接続する請求項１ないし３のいずれかに記載の
管内での物体送り方法。4. The discharge path (6) and the suction path (7) connected to the pipe (1) are connected to the discharge section and the suction section of a single vacuum pump (5). A method for feeding an object in a pipe according to the above item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07917390A JP3242642B2 (en) | 1990-03-28 | 1990-03-28 | Method of feeding objects in a pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07917390A JP3242642B2 (en) | 1990-03-28 | 1990-03-28 | Method of feeding objects in a pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03278865A JPH03278865A (en) | 1991-12-10 |
| JP3242642B2 true JP3242642B2 (en) | 2001-12-25 |
Family
ID=13682591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07917390A Expired - Fee Related JP3242642B2 (en) | 1990-03-28 | 1990-03-28 | Method of feeding objects in a pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3242642B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003093951A (en) * | 2001-09-26 | 2003-04-02 | Yuushin Kk | Pig for painting |
-
1990
- 1990-03-28 JP JP07917390A patent/JP3242642B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03278865A (en) | 1991-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |