JPS59117993A - Method of repairing pipe joint section of existing pipe - Google Patents
Method of repairing pipe joint section of existing pipeInfo
- Publication number
- JPS59117993A JPS59117993A JP57230501A JP23050182A JPS59117993A JP S59117993 A JPS59117993 A JP S59117993A JP 57230501 A JP57230501 A JP 57230501A JP 23050182 A JP23050182 A JP 23050182A JP S59117993 A JPS59117993 A JP S59117993A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- existing pipe
- sealing member
- existing
- joint part
- 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
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Pipe Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、主どして地下に埋設され（いる既設のガス管
、水道管などの管継手部を、埋設状態のにま管内面り目
）シール覆る既設管の↑τ継千部の補Ｐ１方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to sealing and sealing of existing pipe joints of existing gas pipes, water pipes, etc., which are buried underground. ↑This is related to the auxiliary P1 method of τtsugisenbu.
近年、ガス管、水道管などの地下に埋設された既設管を
、埋設状態のまま、腐蝕などに対して賞′を再生させる
ように、内面から補修する方法が種々促案されている。In recent years, various methods have been proposed for repairing existing pipes such as gas pipes, water pipes, etc. buried underground from the inside so as to restore their properties against corrosion while remaining buried.
特に、地下に埋設された既設の刀ス筈Ｃ゛、鋳１３ 竹
を水道型接手により接続した形態のらのでは、了の管継
手部のシール性についでも、ξの補修の必要性が生じて
いる。すな４）ら、近時、都市ガスは、古くから使用さ
れていた石炭カスに代って、乾燥した天然ガスとなって
おり、従来の石が２カスの場合、ガス中のタール成分が
継手部に介装され１．：「石肌」と称されるシール材中
に浸透りることからシール性の劣化（よとくに問題（、
二ならなかったが、乾燥した天然ガスの場合は、シール
材が乾燥、収縮することから空隙が生じ、シール性が劣
化してガス洩れの原因どなることから、その管継手部の
シール１′１を確実化し、以後シル劣化を起さイ〈いよ
−）な補作を１テう必要が生じ（いる。In particular, in the case of the existing pipes buried underground, which are constructed by connecting cast 13 bamboo pieces with water-type joints, it is necessary to repair the sealing properties of the pipe joints. ing. 4) Recently, city gas has become dry natural gas instead of the coal scum that has been used for a long time. Interposed in the joint part 1. : Deterioration of sealing performance (particularly problematic) due to penetration into the sealing material called "stone surface".
However, in the case of dry natural gas, the sealing material dries and contracts, creating voids, which deteriorates the sealing performance and causes gas leakage. It becomes necessary to make a supplementary work to ensure that the sill deterioration will not occur in the future.
しかし、既設のガス管で管径が中口径管や小口ｉ￥管は
、人ｌ１１工管のＪ、−）に作業者が管内に入って管継
手部の内面補修作業を行うことができないのＣ，油隙作
業の施工が大変であり、埋設状態で管継手部を外部から
内面補咋する施工法が望まれている。However, for existing gas pipes with medium-diameter pipes or small-diameter pipes, it is not possible for workers to enter the pipe and repair the inner surface of the pipe joint. C. It is difficult to carry out oil gap work, and a construction method is desired in which the pipe joint is internally reinforced from the outside while it is buried.
本発明は、１記事情にもとづいてなされた６ので、比較
的簡単で、かつ、確実なシール性を確保？：″さる既設
管の管継手部の補修方法を提供しようとするものである
。Since the present invention was made based on the above circumstances, it is relatively simple and ensures reliable sealing performance. : ``This is an attempt to provide a method for repairing a pipe joint of an existing pipe.
この目的のため、本発明は、シーｔ−状のシーリングｔ
＄月の一面に接着剤塗膜を４ｆｌｔ成し、１記塗膜を外
側にして上記シーリング部材を、既設管内（Ｙより小径
になるよ゛うに巻いて、上記既設室内に挿入し、上記既
設管の管継手部におい−（展開し、十記接着剤塗股を既
設管内壁に密着してＬ記管継手部のシーリングを（ｊな
うことを特徴とりるｂのである。For this purpose, the invention provides a sheet t-shaped sealing t
Apply 4 flt of adhesive coating on one side of the moon, wrap the sealing member in the existing pipe so that it has a diameter smaller than Y, and insert it into the existing pipe with the first coating outside. At the pipe joint part of the pipe, the adhesive is applied to the inner wall of the existing pipe to seal the pipe joint part.
このＪ−うな？ＩＩｉ修方法において、とくに、上記シ
ーリング部材を、少くとも二重層状のシー１＝ ”（構
成し、熱膨張率の差で、管継手部にＪ５いて加熱ガス（
加熱空気を含む）の働きて、熱的に展開させて管継手部
を内側から覆うにうに既設管内壁に密＠Ｊることができ
る。This J-una? In the repair method IIi, in particular, the above-mentioned sealing member is constituted by at least a double-layered seal, and due to the difference in thermal expansion coefficient, the heated gas (
(contains heated air), it can be thermally expanded and tightly attached to the inner wall of the existing pipe to cover the pipe joint from the inside.
また、既設管挿入時、濫りに室内壁に接触して貼着され
ないように、加熱ガスの熱によって粘着ｆ［を発揮１Ｊ
るＪ、うイ１塗膜の月利も選択されるとよい。In addition, when inserting the existing pipe, the heat of the heated gas creates an adhesive f [1 J
The monthly interest rate for the coating film may also be selected.
、ｔだ、既設質の内部に、シーリング部材を挿入１する
１１５、これを１んまい式に巻いてＪ３き、管継手部で
展開さＵる方法や、管継手部で螺旋状に７−ピングする
形式などが考えられる。Insert the sealing member into the existing material (115), wrap it in a circular loop and unfold it at the pipe joint, or twist it in a spiral at the pipe joint. Possible methods include pinging.
以下、本発明の実施例を図面を参照して具体的（二説明
りるっ図にｄ５いて、符０１は、 面に樹脂を含浸さＵ
たＲ ’Ｄｉ製の層１ａを、他面に伸縮性の人さい合成
イム製の層１ｂをイれぞれ構成したシー［−払のシーリ
ング部材であり、上記層１ａの外側には、接着剤の塗膜
２が設りられでいる。上記シーリング部（１１は、例え
ば、第２図にみられるように、最初から、「ん、１、い
状に巻かれた形状に構成されていて一〇よいが、既設管
への１φ入時、機械的１段で図のよう＜ｉ形状にされ、
第３図おにび第４図にみられるＪ、うに、既ｎＱ管への
管継手部Ｂの位置にＪ５いで、展１７Ｉされるよう（こ
してムよい。最初が♂う「んまい状に巻かれた形状にし
た場合、上記シーリング部（イ１（ま、既設管Ａ内に゛
おいて、熱的に展開される。この場合、層１ａは、層１
１３よりも熱膨張率の小さいものがよい。上記既設％Ｖ
Ａに対するシーリング部材１の挿入には、種々の方法が
占えられる。第４図には、その−例が示されている。こ
こでは、両端を円錐状にした筒状のビグ３の外周に支持
リブ４をビグ３の長手方向に向りて多数説りたちのであ
り、上記支持リブ４の高さが、１−記ジーリンク部材１
を支えるのにふき４つしい＼Ｊｄ１になっている。上記
ビグ３の前後端には牽引ライ−１５、Ｏが設りてあり、
またキャスタ、’ｌ ａ、 Ｇ ａが設置ノであって、
既設管△への挿入時には、既設管△内型にシーリング部
月１の外側面（接着剤塗膜）が触れないにうな状態で管
内に挿入づる。管継手部Ｂの位置まで、牽引ワ、イヤ５
．Ｏでビグ３を移動したなＩうば、上記既設管Δ内に熱
線を送り込むと、ビグ３の周囲を通る時、シーリンク゛
部材１に熱的影響を与え、層Ｔｏｌｆｉ層１ａより大き
く伸長し、これによってシーリング部材１は第５図にみ
！うれるよ−うに、管内壁に貼着され、管継手部］３を
第６図のように内側から覆ってしまう。Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings (2).
This is a sealing member consisting of a layer 1a made of R'Di and a layer 1b made of stretchable synthetic imm on the other side. A coating film 2 of the agent is provided. For example, as shown in Fig. 2, the above sealing part (11) may be configured in a shape that is wound in a shape from the beginning, but when 1φ is inserted into the existing pipe , is mechanically made into <i shape as shown in the figure in one step,
J, which can be seen in Figure 3 and Figure 4, is J5 at the position of the pipe joint B to the existing nQ pipe, so that it is extended 17I. When the sealing part (A1) is placed in the existing pipe A, it is thermally developed. In this case, the layer 1a is
A material having a smaller coefficient of thermal expansion than No. 13 is preferable. Above existing %V
The sealing member 1 can be inserted into A in various ways. An example is shown in FIG. Here, a large number of support ribs 4 are provided on the outer periphery of the cylindrical BIG 3 with conical ends, extending in the longitudinal direction of the BIG 3, and the height of the support ribs 4 is 1- Link member 1
It has become \Jd1, which is very difficult to support. At the front and rear ends of the above-mentioned Big 3, a traction lie-15, O is installed.
Also, the casters, 'l a and G a are installation nodes,
When inserting into the existing pipe △, the sealing part 1 is inserted into the pipe in such a manner that the outer surface (adhesive coating) of the sealing part 1 does not touch the inner mold of the existing pipe △. Pull the traction wire and ear 5 to the position of the pipe joint part B.
．． After moving Big 3 at O, when a hot wire is sent into the existing pipe Δ, as it passes around Big 3, it has a thermal effect on the sealing member 1, causing it to elongate to a greater extent than layer Tolfi layer 1a. The sealing member 1 is shown in Figure 5! It is attached to the inner wall of the pipe so as to cover the pipe joint part 3 from the inside as shown in FIG.
イｒお、１−記実施例ｃ（Ｊｌ、予め、ビんまい状にシ
ーリング部材１４形成して（１３いて、既設管Δ内に挿
入し、管継手部［３Ｃ゛、熱的に展開りる方式を用いた
が、平板状のシーリング部材１を機械的に巻いてＪ３い
て、管継手部［３でリリースづることにより、管内面に
貼着づる方式も採用できること勿論である。1-Example c (Jl) The sealing member 14 is formed in advance in a bottle shape (13), inserted into the existing pipe Δ, and the pipe joint part [3C] is thermally expanded. However, it is of course possible to adopt a method in which the flat sealing member 1 is mechanically wound and released at the pipe joint part [3] to be attached to the inner surface of the pipe.
また、第７図にみられるように、シーリング部材１をア
ープ状の長いものとし、管継手部Ｂにおい゛Ｃ１螺旋状
に展開し、シーリングする方式もある。この場合も、熱
的に展開づる方法および機械的に展間りる方法など、種
々の方法が考えられる。Further, as shown in FIG. 7, there is also a method in which the sealing member 1 is made into a long arc-shaped member, and is expanded in a spiral shape at the pipe joint B for sealing. In this case as well, various methods can be considered, such as a thermal expansion method and a mechanical expansion method.
更に、Ｌ記塗欣は、熱的影響トＣ゛粘着性を発揮サ−る
ｂのにして、既設管挿入の時、濫りに管内壁に４＝Ｊ着
しないようにりるとよい。Furthermore, the coating described in L should be applied so that it does not unduly adhere to the inner wall of the pipe when it is inserted into an existing pipe, since it exhibits adhesive properties that are not affected by heat.
このＪ：うに、本発明によれば、シーリング部材を巻い
た状態で既設管内に挿入し、これを管継手部で展開して
、接着剤塗膜を管内壁に密着させることにより、上記管
継手部を内側から覆うことになるのＣ１「石肌」などの
管継手部シール材が、内部を通るガスで乾燥されてその
シール性を低下りることがなく、また、既にシール性が
劣化していても、上記シーリング部材にＪ、・）Ｃ、シ
ル性が確保され、管継手部ｈＳ ｌうのガス漏れが完
全に防止できるのである。According to the present invention, the sealing member is inserted into the existing pipe in a rolled state, and is expanded at the pipe joint to bring the adhesive coating into close contact with the inner wall of the pipe. The pipe joint sealing material such as C1 "stone surface" that covers the pipe joint from the inside will not be dried by the gas passing through the inside and reduce its sealing performance, and the sealing performance has already deteriorated. Even if the above-mentioned sealing member has sufficient sealing properties, gas leakage from the pipe joint can be completely prevented.
第１図は本発明の 実施例にＪ３１ノるシーリング部材
の一部の断面図、第２図はシーリング部材の既設管挿入
前の状態を示づ斜視図、第３図は管継手部にお（）るシ
ーリング部材の展開した状況を示り断面図、第４図はシ
ーリングにＪ−３けるビグの使用態様を示Ｊ縦断側面図
、第５図は同端面図、第６図は同ｍ断側面図、第７図は
別の実施例のシリング方式を示す縦断側面図である。
１・・・シーリング部材、２・・・塗膜、１ａ、 ｉｂ
・・・層、３・・・ビグ、４・・・リブ、５，６・・・
ワイ１７゜第１図
第３図
第４図
第５図Figure 1 is a cross-sectional view of a part of the sealing member J31 according to the embodiment of the present invention, Figure 2 is a perspective view showing the state of the sealing member before it is inserted into an existing pipe, and Figure 3 is a cross-sectional view of a part of the sealing member according to the embodiment of the present invention. () is a sectional view showing the unfolded state of the sealing member, Fig. 4 is a longitudinal sectional side view showing how the big J-3 is used for sealing, Fig. 5 is an end view of the same, and Fig. 6 is the same FIG. 7 is a vertical sectional side view showing another embodiment of the Schilling method. 1... Sealing member, 2... Paint film, 1a, ib
...layer, 3...big, 4...rib, 5,6...
Wire 17゜Figure 1Figure 3Figure 4Figure 5
Claims (5)
膜を添設し、上記塗膜を外側にして上記シーりンク部（
Ａを、既設管内径Ｊ、り小径になるように巻いて、１−
記既設管内に挿入し、上記既設管の管継手部において展
開し、上記接着剤；を紛を既設管内壁に衝打して上記管
継手部のシーリングを行な）ことを特徴どづる既設管の
管継手部の補修方法。(1) A sealing agent coating film is attached to one side of the sheet-shaped sealing member, and the sealing agent coating film is attached to the sealing part (
Wrap A to make the inner diameter of the existing pipe J, smaller than 1-
The existing pipe is inserted into the existing pipe, spread at the joint part of the existing pipe, and the adhesive is applied to the inner wall of the existing pipe to seal the joint part. How to repair pipe joints.
のシ １・で（＾１成され、熱膨張率が塗Ｈ分側におい
Ｃ小さいように設定され、」二記シーリング部材を管継
り部において、加熱ガスで展開させるようにしたことを
１！１徴どする特許請求の範囲第１項記載の既設管の管
継手部の補修方法。(2) The sealing member marked J is made of at least a double-layered film, and the coefficient of thermal expansion is set to be smaller on the coated H side, and the sealing member marked J is connected to the pipe. A method for repairing a pipe joint part of an existing pipe according to claim 1, wherein the pipe joint part of an existing pipe is expanded by heating gas at the joint part.
のジー１へで構成され、熱膨張率が塗膜側において小さ
いように設定され、上記シーリング部材を管継手部にお
いＣ１加熱ガスで展開さけると共に、上記塗膜は、加熱
によって粘着性を発揮りる材オ′８１で構成されている
ことを特徴とする特許請求の範囲第１項記載の既設管の
管継手ｈ１５の補修方法、。(3) The above-mentioned sealing member is composed of at least a double-layered G1, and the coefficient of thermal expansion is set to be smaller on the coating film side, and the above-mentioned sealing member is expanded with C1 heated gas at the pipe joint part, and 2. The method of repairing a pipe joint h15 of an existing pipe according to claim 1, wherein the coating film is made of a material which exhibits adhesive properties when heated.
ｕ゛／υまい式に０いた状態にｊることを特徴とでる１
う訂３ｒｉ求の範囲第１項記載の既設管の管継手部の補
修方法。(4) The above sealing member is inserted into the existing pipe,
It is characterized by returning to the state of 0 in the same manner as u゛/υ.
Scope of Revision 3ri The method for repairing the pipe joint of an existing pipe as described in item 1.
部にＪ３いて螺旋状に既設管内壁に貼盾されることを特
徴とする特許請求の範囲第゛１項記載の既設管の管継手
部の補修方法。(5) The above-mentioned sealing member has a band-like shape, J3 is attached to the ↑τ joint portion, and is applied to the inner wall of the existing pipe in a spiral manner. How to repair pipe joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57230501A JPS59117993A (en) | 1982-12-22 | 1982-12-22 | Method of repairing pipe joint section of existing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57230501A JPS59117993A (en) | 1982-12-22 | 1982-12-22 | Method of repairing pipe joint section of existing pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59117993A true JPS59117993A (en) | 1984-07-07 |
| JPH0155714B2 JPH0155714B2 (en) | 1989-11-27 |
Family
ID=16908752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57230501A Granted JPS59117993A (en) | 1982-12-22 | 1982-12-22 | Method of repairing pipe joint section of existing pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59117993A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223395A (en) * | 1985-03-27 | 1986-10-03 | 大阪瓦斯株式会社 | Method of changing diameter of curved member |
| JPS6283582A (en) * | 1985-10-07 | 1987-04-17 | ザ・ブルツクリン・ユニオン・ガス・カンパニ− | Coupling device for tubular member |
| JPH0293193A (en) * | 1988-09-28 | 1990-04-03 | Sekisui Chem Co Ltd | Closing of opened port part of branched pipe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5716278A (en) * | 1980-07-01 | 1982-01-27 | Kinji Shigeno | Rotary amplitude type pump |
-
1982
- 1982-12-22 JP JP57230501A patent/JPS59117993A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5716278A (en) * | 1980-07-01 | 1982-01-27 | Kinji Shigeno | Rotary amplitude type pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223395A (en) * | 1985-03-27 | 1986-10-03 | 大阪瓦斯株式会社 | Method of changing diameter of curved member |
| JPS6283582A (en) * | 1985-10-07 | 1987-04-17 | ザ・ブルツクリン・ユニオン・ガス・カンパニ− | Coupling device for tubular member |
| JPH0378516B2 (en) * | 1985-10-07 | 1991-12-13 | Burutsukurin Yunion Gasu Co Za | |
| JPH0293193A (en) * | 1988-09-28 | 1990-04-03 | Sekisui Chem Co Ltd | Closing of opened port part of branched pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0155714B2 (en) | 1989-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5487411A (en) | Liner pipe for repair of a host pipe | |
| CA1052711A (en) | Thermoresponsive tube | |
| US8206529B2 (en) | Method and device for internal refurbishment of corroded hollow sections | |
| SE453374B (en) | SET THROUGH WELD WELDING SHARP PIPES WITH A CORRUGHT WALL | |
| US2656902A (en) | Insulated heat conducting unit | |
| JPS59117993A (en) | Method of repairing pipe joint section of existing pipe | |
| US2371556A (en) | Collapsible air conduit | |
| JPS6312310Y2 (en) | ||
| JPS5887015A (en) | Forming method of protective cover layer on connected section of covered steel pipe | |
| US1811984A (en) | Jacket for coverings for steam or other pipes | |
| US2085441A (en) | Protected conduit | |
| JP4037558B2 (en) | Strip-shaped member for spiral tube formation | |
| JPS5821095A (en) | Heat insulating piping unit | |
| JP2933251B2 (en) | Method for forming gap between inner and outer pipes of refractory two-layer pipe joint | |
| JP3387020B2 (en) | Refractory double-layer pipe with inner and outer pipes fixed | |
| NL1001128C1 (en) | Lining-insertion method in gas-discharge passage | |
| JP3162141B2 (en) | Pipe fittings | |
| JPH05141590A (en) | Corrosion protective sealing method for pipe joint section in water supply line | |
| JPS5964346A (en) | Corrugated tube made of thermally recoverable synthetic res-in and its covering method | |
| PL187867B1 (en) | Thermal insulation for piping systems | |
| JP2950473B2 (en) | A fire-resistant double-layered pipe in which an inner pipe and an outer pipe are fixed and a method of fixing the inner and outer pipes of a fire-resistant double-layered pipe | |
| JPS5952063B2 (en) | Manufacturing method of fireproof double layer pipe | |
| JP2003300012A (en) | Method of lining inside of pipe | |
| JPH0610689U (en) | Air conditioning duct | |
| SK6405Y1 (en) | Thermal insulation of pipeline, pipeline isolation method, particularly pipeline outdoors |