JPS6124064B2 - - Google Patents
Info
- Publication number
- JPS6124064B2 JPS6124064B2 JP55138182A JP13818280A JPS6124064B2 JP S6124064 B2 JPS6124064 B2 JP S6124064B2 JP 55138182 A JP55138182 A JP 55138182A JP 13818280 A JP13818280 A JP 13818280A JP S6124064 B2 JPS6124064 B2 JP S6124064B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter pipe
- pressure
- conduit
- pipe section
- small diameter
- 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
- 239000000565 sealant Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000009969 flowable effect Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明は、小径管部と大径管部とを有する導管
内で、前記大径管部に見合つた径から弾性的に縮
径自在な物体を加圧流体供給により圧送し、その
圧送される物体で流動性シール剤を前記導管の内
面に塗布する導管ライニング方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an object in which, within a conduit having a small diameter pipe section and a large diameter pipe section, an object whose diameter can be elastically reduced from a diameter commensurate with the large diameter pipe section is supplied with pressurized fluid. The present invention relates to a method for lining a conduit, in which a flowable sealant is applied to the inner surface of the conduit by force-feeding the object.
従来、第３図に示すように、単に導管Ｐの一端
側から圧力Ｆで加圧流体を供給して、前後の物体
１とそれら物体１間のシール剤Ｓを圧送し、後側
の物体１でシール剤Ｓを導管Ｐの内面に塗布け、
ライニング層Ｌを形成し、そして、物体１が大径
管部P2から小径管部P1に移行する際、圧力Ｆで物
体１を導管Ｐの内面に押付け、その押付けに対す
る反力で物体１を弾性的に縮経させ、縮径した物
体１を小径管部P1内に押込んでいた。 Conventionally, as shown in FIG. 3, pressurized fluid is simply supplied from one end of the conduit P at a pressure F to force-feed the front and rear objects 1 and the sealant S between the objects 1, and the rear object 1 is Apply sealant S to the inner surface of conduit P with
The lining layer L is formed, and when the object 1 moves from the large diameter pipe section P2 to the small diameter pipe section P1 , the object 1 is pressed against the inner surface of the conduit P with a pressure F, and the object 1 is was elastically contracted, and the reduced diameter object 1 was pushed into the small diameter pipe section P1 .
しかし、大径管部P2と小径管部P1の内径差が大
きく、かつ、内径減少が急激であると、物体１が
十分に縮径されずに詰まつてしまい、あるいは、
小径管部P1と物体１との圧接力が過大になつて詰
まつてしまい、ライニング作業が行えなくなる危
検性が大きく、一層の改良の余地があつた。 However, if the difference in inner diameter between the large diameter pipe part P 2 and the small diameter pipe part P 1 is large and the inner diameter decreases rapidly, the object 1 may not be sufficiently reduced in diameter and become clogged, or
There was a great risk that the pressure contact force between the small diameter pipe section P1 and the object 1 would become excessive and the pipe would become clogged, making it impossible to carry out the lining work, so there was room for further improvement.
本発明の目的は、物体を大径管部から小径管部
に移行させて圧送するに際し、それら両管部の内
径差がかなり大きく、かつ、内径減少がかなり急
激であつても、物体を十分に縮径させて円滑に圧
送できるようにする点にある。 An object of the present invention is to transfer an object from a large diameter pipe section to a small diameter pipe section and transfer the object under pressure, even if the difference in inner diameter between the two pipe sections is quite large and the decrease in the inner diameter is quite rapid. The purpose is to reduce the diameter to allow smooth pumping.
本発明の特徴手段は、圧送される物体でシール
剤を内面に塗布する導管の端部のうち、前記物体
の圧送側のものにリリーフ弁を接続し、そのリリ
ーフ弁のリリーフ圧を、前記物体を大径管部から
小径管部内に移行させる時、及び、その小径管部
内で圧送する時に、前記大径管内で圧送する時よ
りも高圧に設定することにあり、その作用効果は
次の通りである。 The characteristic means of the present invention is that a relief valve is connected to the end of the conduit that applies a sealant to the inner surface of the object, and the relief valve is connected to the end of the conduit on the pressure feeding side of the object, and the relief pressure of the relief valve is applied to the inner surface of the object. When transferring from the large diameter pipe section to the small diameter pipe section, and when pumping it within the small diameter pipe section, the pressure is set higher than when pumping it inside the large diameter pipe, and its effects are as follows. It is.
つまり、リリーフ弁の設定圧を高圧にすると、
導管内全体の圧力が上昇して、その圧力上昇によ
り物体が縮径され、小径管部の内径に見合つた適
度の縮径状態が得られるように、リリーフ弁の設
定圧を適当に選定することによつて、たとえ大径
管部と小径管部の内径差が相当大きく、かつ、内
径減少がかなり急激であつても、物体を十分に縮
径させて大径管部から小径管部に円滑に移行で
き、かつ、小径管部内で摩擦抵抗少なく円滑に圧
送できる。 In other words, if the set pressure of the relief valve is made high,
Appropriately select the set pressure of the relief valve so that the entire pressure inside the conduit increases, the pressure increase causes the object to contract in diameter, and an appropriate diameter reduction condition commensurate with the inner diameter of the small diameter pipe section is obtained. Even if the difference in internal diameter between the large-diameter pipe section and the small-diameter pipe section is quite large, and the decrease in the internal diameter is quite rapid, the object can be sufficiently reduced in diameter to smoothly transition from the large-diameter pipe section to the small-diameter pipe section. , and can be pumped smoothly with little frictional resistance in small diameter pipes.
その結果、小径管部への移行部分や小径管部内
での物体の詰まりを確実に回避して、導管のライ
ニング作業を容易かつ迅速に行えるようになつ
た。 As a result, it has become possible to reliably avoid clogging with objects at the transition to the small diameter pipe section or within the small diameter pipe section, and to perform the conduit lining work easily and quickly.
次に実施例を示す。 Next, examples will be shown.
第１図イに示すように、小径管部P1と大径管部
P2とを有する導管Ｐ内に、大径管部P2に見合つた
径から弾性的に縮径自在な２個の物体１、及び、
それら両物体１間に充填した状態の流動性シール
剤Ｓを一端側から入れる。 As shown in Figure 1A, the small diameter pipe section P1 and the large diameter pipe section
In a conduit P having a pipe P2 , two objects 1 whose diameter can be elastically reduced from a diameter commensurate with the large diameter pipe part P2 , and
The fluid sealant S filled between the two objects 1 is introduced from one end side.
そして、導管Ｐの他端部に、リリーフ圧設定変
更自在なリリーフ弁２を接続し、先ず、リリーフ
弁２のリリーフ弁を低圧に設定した状態で、適当
な公知の加圧流体供給設備により圧力Ｆで加圧流
体を導管Ｐ内に供給し、物体１とシール剤Ｓを圧
送して、後側の物体１によりシール剤Ｓを大径管
部P2の内面に塗布し、ライニング層Ｌを形成す
る。 Then, a relief valve 2 whose relief pressure setting can be freely changed is connected to the other end of the conduit P, and first, with the relief valve 2 set to a low pressure, the pressure is adjusted using an appropriate known pressurized fluid supply equipment. Pressurized fluid is supplied into the conduit P at F, and the object 1 and sealant S are fed under pressure, and the sealant S is applied to the inner surface of the large diameter pipe part P2 by the object 1 on the rear side, and the lining layer L is applied. Form.
第１図ロに示すように、前側の物体１が大径管
部P2から小径管部P1への移行部分に到達して、物
体１の詰まりで導管Ｐへの流体供給量が減少する
等の事態が生じると、リリーフ弁２の設定圧を高
くして、導管Ｐの内圧上昇で物体１を弾性的に縮
径させて、第１図ハに示すように、縮径した物体
１を小径管部P1内に入れ、そして、小径管部P1内
で物体１とシール剤Ｓを圧送して、大径管部P2と
同様に小径管部P1の内面にライニング層Ｌを形成
する。 As shown in Figure 1B, the object 1 on the front side reaches the transition part from the large diameter pipe section P2 to the small diameter pipe section P1 , and the amount of fluid supplied to the conduit P is reduced due to the blockage of the object 1. If such a situation occurs, the set pressure of the relief valve 2 is increased, the internal pressure of the conduit P increases, and the diameter of the object 1 is elastically reduced. As shown in FIG. Then, the object 1 and the sealant S are fed into the small diameter pipe part P 1 under pressure to form a lining layer L on the inner surface of the small diameter pipe part P 1 in the same way as the large diameter pipe part P 2 . Form.
使用する物体１の材質や形状は適当に選択で
き、例えば、第２図イに示すように中空部１ａの
あるゴム球、第２図ロに示すように独立気泡の発
泡樹脂から成る中実状の球、第２図ハに示すよう
に独立気泡の発泡樹脂から成り中空部１ａを有す
る球、あるいは、砲弾形状のもの等を使用する。 The material and shape of the object 1 to be used can be selected as appropriate; for example, a rubber ball with a hollow portion 1a as shown in Figure 2A, or a solid-shaped object made of closed-cell foam resin as shown in Figure 2B. A ball, a ball made of closed-cell foamed resin and having a hollow portion 1a as shown in FIG. 2C, or a bullet-shaped ball is used.
次に別の実施例を説明する。 Next, another embodiment will be described.
１個の物体１で流動性シール剤Ｓを導管Ｐの内
面に塗布してもよい。 The flowable sealant S may be applied to the inner surface of the conduit P using one object 1.
物体１を小径管部P1側から大径管部P2側に圧送
して、ライニングを施すに際し、小径管部P1での
物体１の圧送を円滑に行えるように、本発明を利
用してもよい。 When the object 1 is force-fed from the small-diameter pipe part P1 side to the large-diameter pipe part P2 side and lining is applied, the present invention is utilized so that the object 1 can be smoothly pressure-fed in the small-diameter pipe part P1 . It's okay.
第１図及び第２図は本発明の実施例を示し、第
１図イないしハは施工手順の概念図、第２図イな
いしハは夫々使用する物体の断面図である。第３
図は従来例の概念図である。
１……物体、２……リリーフ弁、Ｐ……導体、
P1……小径管部、P2……大径管部、Ｓ……シール
剤。
1 and 2 show an embodiment of the present invention, FIGS. 1A to 2C are conceptual diagrams of the construction procedure, and FIGS. 2A to 2C are sectional views of the objects used, respectively. Third
The figure is a conceptual diagram of a conventional example. 1...Object, 2...Relief valve, P...Conductor,
P 1 ... small diameter pipe section, P 2 ... large diameter pipe section, S ... sealant.
Claims (1)
で、前記大径管部P2に見合つた径から弾性的に縮
径自在な物体１を加圧流体供給により圧送し、そ
の圧送される物体１で流動性シール剤Ｓを前記導
管Ｐの内面に塗布する導管ライニング方法であつ
て、前記導管Ｐの端部のうち前記物体１の圧送側
のものにリリーフ弁２を接続し、そのリリーフ弁
２のリリーフ圧を、前記物体１を前記小径管部P1
内に移行させる時、及び、その小径管部P1で圧送
する時に、前記大径管部P2内で圧送する時よりも
高圧に設定する導管ライニング方法。1. In a conduit P having a small diameter pipe part P1 and a large diameter pipe part P2 , an object 1 whose diameter can be elastically reduced from a diameter corresponding to the large diameter pipe part P2 is fed under pressure by supplying pressurized fluid. , a conduit lining method in which a flowable sealant S is applied to the inner surface of the conduit P using the object 1 to be pumped, and a relief valve 2 is provided at the end of the conduit P on the side where the object 1 is forced to be fed. connection, and the relief pressure of the relief valve 2 is applied to the object 1 to the small diameter pipe section P1.
A conduit lining method in which the pressure is set to be higher when the pressure is transferred to the inside and when the small diameter pipe section P1 is used for pressure feeding than when the pressure is transferred within the large diameter pipe section P2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13818280A JPS5763174A (en) | 1980-10-01 | 1980-10-01 | Method for lining of conduit pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13818280A JPS5763174A (en) | 1980-10-01 | 1980-10-01 | Method for lining of conduit pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5763174A JPS5763174A (en) | 1982-04-16 |
| JPS6124064B2 true JPS6124064B2 (en) | 1986-06-09 |
Family
ID=15215965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13818280A Granted JPS5763174A (en) | 1980-10-01 | 1980-10-01 | Method for lining of conduit pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5763174A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63317172A (en) * | 1987-06-20 | 1988-12-26 | 三洋電機株式会社 | Motion measuring data display apparatus |
| JPS6422268A (en) * | 1987-07-20 | 1989-01-25 | Sanyo Electric Co | Motion measuring data display apparatus |
| JPS6480381A (en) * | 1987-09-19 | 1989-03-27 | Sanyo Electric Co | Indicator for measured data of movement |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58112075A (en) * | 1981-12-25 | 1983-07-04 | Hakko Co Ltd | Method of lining pipe |
| JP3556041B2 (en) * | 1996-03-04 | 2004-08-18 | 東京瓦斯株式会社 | Partial repair method for existing pipeline |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4943692A (en) * | 1972-08-30 | 1974-04-24 | ||
| JPS5326840A (en) * | 1976-08-26 | 1978-03-13 | Komatsu Keijirou | Method and apparatus for painting inner surface of tube |
| JPS5544320A (en) * | 1978-09-21 | 1980-03-28 | Nippon Plant Service Center:Kk | Lining method for inside wall of pipe |
| JPS5759671A (en) * | 1980-09-26 | 1982-04-10 | Mitsubishi Mining & Cement Co Ltd | Coating method for inside wall of pipe |
-
1980
- 1980-10-01 JP JP13818280A patent/JPS5763174A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4943692A (en) * | 1972-08-30 | 1974-04-24 | ||
| JPS5326840A (en) * | 1976-08-26 | 1978-03-13 | Komatsu Keijirou | Method and apparatus for painting inner surface of tube |
| JPS5544320A (en) * | 1978-09-21 | 1980-03-28 | Nippon Plant Service Center:Kk | Lining method for inside wall of pipe |
| JPS5759671A (en) * | 1980-09-26 | 1982-04-10 | Mitsubishi Mining & Cement Co Ltd | Coating method for inside wall of pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63317172A (en) * | 1987-06-20 | 1988-12-26 | 三洋電機株式会社 | Motion measuring data display apparatus |
| JPS6422268A (en) * | 1987-07-20 | 1989-01-25 | Sanyo Electric Co | Motion measuring data display apparatus |
| JPS6480381A (en) * | 1987-09-19 | 1989-03-27 | Sanyo Electric Co | Indicator for measured data of movement |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5763174A (en) | 1982-04-16 |
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