JPS60228130A - Lining of internal surface of pipe - Google Patents
Lining of internal surface of pipeInfo
- Publication number
- JPS60228130A JPS60228130A JP8473884A JP8473884A JPS60228130A JP S60228130 A JPS60228130 A JP S60228130A JP 8473884 A JP8473884 A JP 8473884A JP 8473884 A JP8473884 A JP 8473884A JP S60228130 A JPS60228130 A JP S60228130A
- Authority
- JP
- Japan
- Prior art keywords
- lining
- tube
- pipe
- lining tube
- adhesive
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
- B29C63/36—Lining or sheathing of internal surfaces using tubular layers or sheathings being turned inside out
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、流体を輸送する既設管などの管の内面をライ
ニングチューブでライニングして、流体の漏洩を防ぐ管
の内面のライニング方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of lining the inner surface of a pipe, such as an existing pipe for transporting fluid, with a lining tube to prevent fluid leakage.
従来から、地中に埋設された、たとえば都市ガスなどの
流体を輸送する管が漏洩を生じたときには、その漏洩箇
所の両側で裏孔を形成し、一方の裏孔から漏洩箇所を有
する管部分内に可撓性を有するライニングチューブを内
面が外伸にくるように折り返して反転して、接着剤によ
ってそのチューブを管内に内張すし、もう一つの裏孔で
はそのライニングチューブを切断している。このような
ライニング方法では裏孔を２箇所掘削しなければならな
いので多大の労力と時間を必要とする。Traditionally, when a pipe buried underground that transports a fluid, such as city gas, leaks, back holes are formed on both sides of the leak point, and the pipe section that has the leak point from one back hole is used. The lining tube, which has flexibility inside, is folded back and turned over so that the inner surface extends outward, and the tube is lined inside the tube with adhesive, and the lining tube is cut using the other back hole. . This lining method requires a great deal of labor and time since it is necessary to drill two back holes.
本発明の目的は、流体の漏洩箇所の補修などのシール作
業が容易となる管の内面のライニング方法を提供するこ
とである。An object of the present invention is to provide a method for lining the inner surface of a pipe, which facilitates sealing operations such as repairing fluid leakage points.
第１図は本発明の一実施例の断面図である。本管ｌから
の都市ガスは、供給管２，３ａを経てガスメータ３によ
って計量されて供給管３ｂから家屋４内に設けられたガ
ス燃焼機器（図示せず）に供給される。供給管２が破損
などしてガス洩れを生じた時は、本発明に従い供給管２
の漏洩箇所が塞がれて修繕される。供給管２のガス洩れ
を防止するために、供給管３ａとガスメータ３とを取外
し、供給管２の端部２ａに本発明に従うライニング装置
５を取付ける。FIG. 1 is a sectional view of an embodiment of the present invention. City gas from the main pipe 1 passes through supply pipes 2 and 3a, is metered by a gas meter 3, and is supplied from a supply pipe 3b to a gas combustion device (not shown) provided in a house 4. When the supply pipe 2 is damaged and gas leaks, according to the present invention, the supply pipe 2 is
The leakage points will be plugged and repaired. In order to prevent gas leakage in the supply pipe 2, the supply pipe 3a and the gas meter 3 are removed, and a lining device 5 according to the invention is attached to the end 2a of the supply pipe 2.
第２図はライニング装＠５の断面図である。このライニ
ング装置５は基本的にはライニングチューブ６が巻回さ
れるリール７と、ライニングチューブ６の内面に接着剤
８を塗布するための塗布手段９と、反転されたライニン
グチューブ６を供給管２内に前進走行させる加圧手段１
０と、ライニングチューブ６を供給管２の内面に密着さ
せる減圧手段１１とを含む。ライニングチューブ６は合
成樹脂製材料、たとえばポリエステルやウレタンなどか
ら成り、管２の内径とほぼ等しいか、やや小さい外径を
有する。このライニングチューブ６は、扁平に折り畳ま
れた状態でリール７に巻°回されており、その開口端部
６ａは一対の送りローラ１２．１３および一対の絞りロ
ーラ１４．１５を介して密閉ケーシング１６から管２の
開口端側に送り出され、その内面を’ｌｊ個に折り返し
て反転されて、密閉ケーシング１６に形成された開口筒
部１７の外周面に固定される。FIG. 2 is a sectional view of the lining device @5. This lining device 5 basically includes a reel 7 on which a lining tube 6 is wound, a coating means 9 for coating an adhesive 8 on the inner surface of the lining tube 6, and a supply pipe 2 for transferring the inverted lining tube 6. Pressurizing means 1 for moving forward inside
0, and a depressurizing means 11 for bringing the lining tube 6 into close contact with the inner surface of the supply pipe 2. The lining tube 6 is made of a synthetic resin material, such as polyester or urethane, and has an outer diameter that is approximately equal to or slightly smaller than the inner diameter of the tube 2. This lining tube 6 is wound around a reel 7 in a flat folded state, and its open end 6a is passed through a pair of feed rollers 12.13 and a pair of squeezing rollers 14.15 to the closed casing 16. It is sent out to the open end side of the tube 2, its inner surface is folded back 'lj times, it is inverted, and it is fixed to the outer peripheral surface of the open cylindrical part 17 formed in the closed casing 16.
送りローラ１２，１３と絞りローラ１４．１５との間の
ライニングチューブ６内には接着剤８が流入されて、接
着剤貯留部分１８が形成される。Adhesive 8 flows into the lining tube 6 between the feed rollers 12, 13 and the squeezing rollers 14, 15, forming an adhesive reservoir 18.
ｆｆ１ｓＩ剤８の材料としてエポキシ系合成樹脂が好適
に用いられる。接着剤貯留部分１８を通過したライニン
グチューブ６は、絞りローラ１４，１５のライニングチ
ューブ６に対する相互の挟圧力によって、その内面全面
に塗布される接着剤８の桁が調整される。Epoxy synthetic resin is preferably used as the material for the ff1sI agent 8. After the lining tube 6 has passed through the adhesive storage portion 18, the extent of the adhesive 8 applied to the entire inner surface of the lining tube 6 is adjusted by the mutual squeezing force of the squeezing rollers 14 and 15 on the lining tube 6.
ライニングチューブ６が送り込まれる蕾閉ケーシングト
ロには加圧手段としてのコンプレッサ１０と、減圧手段
としての真空ポンプ１１が儲えられる。コンプレッサｌ
Ｏによってケーシング１６内には圧縮空気が送入される
。この圧縮空気によってライニングチューブ６は、リー
ル７から送りローラ１２，１３および絞りローラ１４，
１５を介して管２内に反転された状態で前進走行する。The closed casing tube into which the lining tube 6 is fed is equipped with a compressor 10 as a pressurizing means and a vacuum pump 11 as a depressurizing means. compressor l
Compressed air is introduced into the casing 16 by O. This compressed air moves the lining tube 6 from the reel 7 to the feed rollers 12, 13 and the squeezing roller 14.
15 into the tube 2 in an inverted state.
このようにしてライニングすべき距離に応じた長さを有
するライニングチューブ６を管２内に送り出すことによ
り、第３図（１）に示されるようにｗ２の内面にライニ
ングチューブ６が接着される。ライニングチューブ６の
反転、挿入後真空ポンプ１１によってケーシング１６内
が減圧される。このときライニングチューブ６は第３図
（２）に示されるように、半径方向外方の接着部６ｂと
、半径方向内方の折り返し部６ｃとが密着され、これに
よって管２内に流体輸送の空間２１を形成することがで
きる。By feeding the lining tube 6 having a length corresponding to the distance to be lined into the pipe 2 in this manner, the lining tube 6 is adhered to the inner surface of the w2 as shown in FIG. 3(1). After the lining tube 6 is reversed and inserted, the pressure inside the casing 16 is reduced by the vacuum pump 11. At this time, as shown in FIG. 3(2), the lining tube 6 has a radially outer adhesive portion 6b and a radially inner folded portion 6c in close contact with each other, thereby allowing fluid transport within the tube 2. A space 21 can be formed.
第２図および第３図を参照しながら管２内面のライニン
グ工程を説明する。ガス洩れか生じた供給管２の開口端
側に密閉ケーシング１６を取付け、このケーシング１６
内に内面に接着剤８が塗布されたライニングチューブ６
を挿入し、ライニングチューブ６の開口端部６ａを、ケ
ーシング１°６の開口筒部１７の外周面に反転して固定
する。次いでコンプレッサＩＯＫよってケーシング１６
内に圧縮空気を送入する。この圧縮空気の圧力によって
ライニングチューブ６は管２内で反転して走行し、第３
図（１）に示されるようにライニングすべき一管２の距
４１に応じた位置に到達する。このときライニングチュ
ーブ６の内面に塗布される接着剤８の量は、距離ｌに応
じたライニングチューブ６の長さだけが塗布されるよう
に選ばれており、ライニングチューブ６の前進走行と同
時にライニングチューブ６の半径方向外方の′ｗ、着部
６ｂは管２の内面全面に接着される。The process of lining the inner surface of the tube 2 will be explained with reference to FIGS. 2 and 3. A sealed casing 16 is attached to the open end side of the supply pipe 2 where gas leakage has occurred, and this casing 16 is
Lining tube 6 with adhesive 8 applied to the inner surface
is inserted, and the open end 6a of the lining tube 6 is inverted and fixed to the outer peripheral surface of the open cylindrical portion 17 at 1°6 of the casing. Then the casing 16 is removed by the compressor IOK.
Inject compressed air into the Due to the pressure of this compressed air, the lining tube 6 is reversed and runs inside the pipe 2, and the third
As shown in FIG. 1, a position corresponding to the distance 41 of the pipe 2 to be lined is reached. At this time, the amount of adhesive 8 applied to the inner surface of the lining tube 6 is selected so that only the length of the lining tube 6 corresponding to the distance l is applied, and the lining is applied at the same time as the lining tube 6 moves forward. The radially outer part 6b of the tube 6 is bonded to the entire inner surface of the tube 2.
このようにしてライニングすべき距４１ ｚに応じた長
さを有するライニングチューブ６を管２内に挿入して、
！２２内にライニングチューブ６を接着した後、真空ポ
ンプ１工によってケーシング１６内およびライニングチ
ューブ６の接着部６ｂと、折返し部６ｃとの空間５０を
減圧する。このときライニングチューブ６の折返し部６
ｃは第３図（２）に示されるように、管２の半径方向外
方に引きつけられて接着部６ｂと折返し部６ｃとが相互
に密着して、管２の内周面に２重筒状に内張すされる。In this way, the lining tube 6 having a length corresponding to the distance to be lined 41z is inserted into the pipe 2,
! After bonding the lining tube 6 inside the lining tube 22, a vacuum pump is used to reduce the pressure in the casing 16 and the space 50 between the bonded portion 6b of the lining tube 6 and the folded portion 6c. At this time, the folded portion 6 of the lining tube 6
As shown in FIG. 3(2), c is drawn outward in the radial direction of the tube 2, and the adhesive part 6b and the folded part 6c come into close contact with each other, forming a double tube on the inner peripheral surface of the tube 2. It is lined in a shape.
その後、ライニングチューブ６の接着部６ｂと、折返し
部６ｃとが相互に密着した状態で管２の開口端のライニ
ングチューブ６の一端部６ｄを密封する。このように’
ｆｆ２の内面の全面にライニング層を形成することによ
って漏洩箇所を確実に寮ぐことができ、ガス洩れを完全
に止めることができるＯ
このように供給管２のガスメータ３の取付備部から１１
箇所の修繕を行なうことができるので、掘削の必要がな
く、作業畦間の短縮および費用の低減を図ることができ
る。またライニングすべき管が地中に埋設されている場
合でも、ｌｓ所の掘削でライニング作業を行なうことが
できるので、交通障害を緩和することができ、実用性が
著しく向上する。しかもライニング層を接３ｉｌ！ｌ＠
＜分６ｂと折返し部分６ｃとの２重構造とすることによ
って、安全性がさらに高められるとともに、ライニング
チューブ６の折返し部分６ｃの回収か不要となり、施工
作業を効率良く行なうことかできる。また管２のライニ
ングされるべき距離／に応じたライニングチューブ６の
長さだけその内面に接着剤８が塗布されておれば足り、
したがってコストダウンを図ることができるとともに、
減圧によるライニングチューブ６の接着部分６ｂと、折
返し部分６Ｃとの密着を円滑に行なうことができる。Thereafter, one end 6d of the lining tube 6 at the open end of the tube 2 is sealed with the adhesive portion 6b and the folded portion 6c of the lining tube 6 in close contact with each other. in this way'
By forming a lining layer on the entire inner surface of the ff2, the leakage point can be reliably sealed and gas leakage can be completely stopped.
Since repairs can be made at the site, there is no need for excavation, making it possible to shorten the work furrow and reduce costs. Furthermore, even if the pipe to be lined is buried underground, the lining work can be carried out by excavating at the ls location, so traffic obstructions can be alleviated and practicality is significantly improved. Moreover, the lining layer is 3il! l@
By adopting the double structure of the lining tube 6b and the folded portion 6c, safety is further improved, and there is no need to collect the folded portion 6c of the lining tube 6, allowing efficient construction work. Furthermore, it is sufficient that the adhesive 8 is applied to the inner surface of the lining tube 6 for the length of the lining tube 6 corresponding to the distance to be lined of the pipe 2.
Therefore, it is possible to reduce costs, and
The adhesive portion 6b of the lining tube 6 and the folded portion 6C can be brought into close contact with each other smoothly by reducing the pressure.
第４図は本発明の他の実施例の一部断面図である。第４
図は第３図（２）の構成に類似し、対応する部分には同
一の参照符を付す。注目すべきはライニングチューブ６
の折返し部６ｃに布のような多孔性材質を用い、接着部
６ｂおよび折返し部６ｃの内面に接着剤８を塗布してラ
イニングを行ない１その後減圧を行なって接着部６ｂと
折返し部６ｃとを減圧によって密着したとき、折返し部
６Ｃ上の接着剤８が矢符２２の方向に向って番みでるよ
うに構成・したことである。このように減圧によって接
着部６ｂと折返し部６ｃとの間に接着剤８を満たさせる
ことによって相互の蕾着度が強まり、前記実施例のよう
に減圧後、接着部６ｂと、折返し部６ｃとの間を密閉す
る必要がなく、施工作業の簡略化を図ることができる。FIG. 4 is a partial sectional view of another embodiment of the invention. Fourth
The figure is similar to the configuration in FIG. 3(2), and corresponding parts are given the same reference numerals. What is noteworthy is lining tube 6
A porous material such as cloth is used for the folded part 6c, and adhesive 8 is applied to the inner surfaces of the bonded part 6b and the folded part 6c for lining. The structure is such that the adhesive 8 on the folded portion 6C appears in the direction of the arrow 22 when the adhesive is brought into close contact with the folded portion 6C by reduced pressure. In this way, by filling the adhesive 8 between the adhesive part 6b and the folded part 6c by reducing the pressure, the degree of adhesion to each other is strengthened. There is no need to seal the space between the two, simplifying the construction work.
本発明のさらに他の実施例として、ライニングすべき管
２の距離１以上の長さに亘ってライニングチューブ６の
内面に接着剤８を塗布するような構成にしてもよい。ま
たこのとき接着部６ｂを管２の内面に接着した後、折返
し部６Ｃ相互間の接着剤を硬化させ、減圧後に接着部６
ｂに密着する折返し部６ｃが管２内の液体輸送の空１ｆ
ＪＪ ２１内に垂れ下らないような構成にしてもよい。In yet another embodiment of the present invention, the adhesive 8 may be applied to the inner surface of the lining tube 6 over a distance 1 or more of the tube 2 to be lined. At this time, after adhering the adhesive part 6b to the inner surface of the tube 2, the adhesive between the folded parts 6C is cured, and after the pressure is reduced, the adhesive part 6
The folded part 6c in close contact with b is the liquid transport space 1f in the pipe 2.
It may be configured so that it does not hang down inside the JJ 21.
また他の実施例としてライニングチューブ６の内周面に
布などの繊維状のシート体を内張すし、反転後にはシー
ト体が管内面に密着するような構成としてライニング層
の強度性を向上するようにしてもよい。In another embodiment, the inner peripheral surface of the lining tube 6 is lined with a fibrous sheet material such as cloth, and the sheet material is in close contact with the inner surface of the tube after being inverted, thereby improving the strength of the lining layer. You can do it like this.
ライニングチューブ６を管２内に前進走行させるための
加圧手段は前記実施例のような圧縮空気に限定されず、
圧力が加えられた水などの流体であってもよく、また加
圧手段、および減圧手段としては前述の実施例のような
コンプレッサ、真空ポンプに限定されず、フロアなどの
他の構成であってもよい。また本発明は地中に埋設され
た管だけでなく、その他のたとえば空中に架設された賛
にも関連して実施され得る。The pressurizing means for moving the lining tube 6 forward into the pipe 2 is not limited to compressed air as in the above embodiment,
It may be a fluid such as water to which pressure is applied, and the pressurizing means and depressurizing means are not limited to the compressor or vacuum pump as in the above-mentioned embodiments, but may be other structures such as a floor. Good too. Furthermore, the present invention can be practiced not only in conjunction with pipes buried underground, but also in connection with other pipes, for example, pipes installed in the air.
ライニングチューブ６は合成樹脂製の他に、ゴムなどの
材料から構成されてもよい。The lining tube 6 may be made of a material such as rubber in addition to synthetic resin.
以上のように本発明によれは、被ライニング管の一端側
からライニングチューブを反転走行させて管の内面に接
着し、その後減圧によってライニングチューブの管内壁
の接着部と、未反転の折返し部とを骨内壁に密着させる
ことによって一方向から管の漏洩箇所の修繕を確実に行
なうことができる。従って前述の先行技術において２つ
の裏孔を掘削する必要が無くなり、たとえば１つの辰孔
を裾前１すればよく、あるいはまた被ライニング管が地
中に埋設されており、その一端が地表Ｋｍ出していると
きには裏孔の掘削を必要とせず、また被ライニング管の
たとえば作業し易い位置からライニングチューブを内砦
りすることができるので、施工に要する時間、労力、費
用の削減化を図ることができる。As described above, according to the present invention, the lining tube is reversed from one end of the pipe to be lined and adhered to the inner surface of the pipe, and then the bonded part of the inner wall of the lining tube is separated from the uninverted folded part by reducing the pressure. By bringing the tube into close contact with the inner wall of the bone, the leakage site of the tube can be reliably repaired from one direction. Therefore, there is no need to excavate two back holes in the above-mentioned prior art; for example, it is only necessary to drill one tail hole in front of the hem, or alternatively, the pipe to be lined is buried underground, with one end protruding Km above the ground surface. When the lining tube is being lined, there is no need to dig a back hole, and the lining tube can be lined from an easy-to-work position on the pipe to be lined, reducing the time, labor, and cost required for construction. can.
第１図は本発明の一実施例の断面図Ｂ４２図はライニン
グ装置５の断面図、第３図はライニングチューブ６の反
転された形状を示す断面図、第４図は本発明の他の実施
例の断面図である。
２・・・供給管、５・・・ライニング装置、６・・・ラ
イニングチューブ、８用接着剤、ｌｏ・・・加圧手段、
１１・・・減圧手段
代理人 弁理士 西教圭一部FIG. 1 is a cross-sectional view of one embodiment of the present invention. FIG. B42 is a cross-sectional view of the lining device 5. FIG. 3 is a cross-sectional view showing the inverted shape of the lining tube 6. FIG. FIG. 3 is an example cross-sectional view. 2... Supply pipe, 5... Lining device, 6... Lining tube, adhesive for 8, lo... Pressurizing means,
11...Decompression means agent Patent attorney Kei Nishi
Claims (1)
径を有するライニングチューブの一端部を前記管の端部
側の固定位置に固定し、管の前記端部側から圧縮空気を
導入してそのライニングチューブの内面を外側に折り返
して反転し、前記管内を走行させてその管内面全面に接
着し、その後、減圧してライニングチューブの管内壁接
着部と、未反転の折り返し部とを管内壁に密着し、流体
輸送の空間を形成することにより、一方向より管内面に
ライニングすることを特徴とする管の内面のライニング
方法。One end of a lining tube having an outer diameter approximately equal to or slightly smaller than the inner diameter of the pipe to be lined is fixed at a fixed position on the end side of the pipe, and compressed air is introduced from the end side of the pipe. The inner surface of the lining tube is folded back and reversed, and the inner surface of the lining tube is run inside the tube and bonded to the entire inner surface of the tube.Then, the pressure is reduced and the inner wall adhesive part of the lining tube and the uninverted folded part are bonded to the inner wall of the pipe. A method for lining the inner surface of a tube, characterized by lining the inner surface of the tube from one direction by closely contacting the inner surface of the tube and forming a space for fluid transport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8473884A JPS60228130A (en) | 1984-04-25 | 1984-04-25 | Lining of internal surface of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8473884A JPS60228130A (en) | 1984-04-25 | 1984-04-25 | Lining of internal surface of pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60228130A true JPS60228130A (en) | 1985-11-13 |
| JPH0363501B2 JPH0363501B2 (en) | 1991-10-01 |
Family
ID=13839035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8473884A Granted JPS60228130A (en) | 1984-04-25 | 1984-04-25 | Lining of internal surface of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60228130A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5112211A (en) * | 1987-10-30 | 1992-05-12 | Pipe Liners, Inc. | Pipe lining apparatus |
| US5395472A (en) * | 1992-08-20 | 1995-03-07 | Mandich; Ivan C. | Lining system and methods for installing plastic liners in a pipe |
| EP0834392A2 (en) * | 1996-09-17 | 1998-04-08 | Rothenberger Rohrsanierung GmbH | Method and apparatus for manufacturing a hose for lining of pipelines and channel systems |
-
1984
- 1984-04-25 JP JP8473884A patent/JPS60228130A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5112211A (en) * | 1987-10-30 | 1992-05-12 | Pipe Liners, Inc. | Pipe lining apparatus |
| US5395472A (en) * | 1992-08-20 | 1995-03-07 | Mandich; Ivan C. | Lining system and methods for installing plastic liners in a pipe |
| EP0834392A2 (en) * | 1996-09-17 | 1998-04-08 | Rothenberger Rohrsanierung GmbH | Method and apparatus for manufacturing a hose for lining of pipelines and channel systems |
| EP0834392A3 (en) * | 1996-09-17 | 1998-10-28 | Rothenberger Rohrsanierung GmbH | Method and apparatus for manufacturing a hose for lining of pipelines and channel systems |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0363501B2 (en) | 1991-10-01 |
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