JPS6124065B2 - - Google Patents
Info
- Publication number
- JPS6124065B2 JPS6124065B2 JP55149552A JP14955280A JPS6124065B2 JP S6124065 B2 JPS6124065 B2 JP S6124065B2 JP 55149552 A JP55149552 A JP 55149552A JP 14955280 A JP14955280 A JP 14955280A JP S6124065 B2 JPS6124065 B2 JP S6124065B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter pipe
- lining
- pipe
- 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 34
- 238000000034 method Methods 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 8
- 239000002699 waste material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、大径管から小径管が分岐されている
導管内に挿入した物体の管内走行によつて流動性
シール剤を導管内面に筒膜状にライニングする方
法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of lining the inner surface of a conduit with a fluid sealant in the form of a cylindrical film by running an object inserted into a conduit in which a small diameter pipe is branched from a large diameter pipe. .
従来では分岐点で切断分離し大径管と小径管と
を各別にライニングしていたが、前記切断分離な
らびにライニング後の再連結に多大な労力と手間
を要し、作業能率が非常に悪い欠点があつた。 Conventionally, the large-diameter pipe and small-diameter pipe were lined separately by cutting and separating at the branch point, but the cutting and separating and reconnecting after lining required a great deal of labor and effort, resulting in very low work efficiency. It was hot.
そこで先に、導管の切断分離を行わずに大径管
および小径管を一貫してライニングできる能率的
に優れた下記(イ)及び(ロ)の方法を提案した。 Therefore, we first proposed the methods (a) and (b) below, which are highly efficient and can consistently line large-diameter pipes and small-diameter pipes without cutting and separating the pipes.
(イ) 小径管に対応する小径走行物体の管内走行に
よりその内面をライニングする工程と、大径管
に対応する大径走行物体の管内走行によりその
内面をライニングする工程とを、何れかが先行
する状態で相前後させて行い、また、大径管ラ
イニング工程時に小径管側に侵入したシール剤
などの余剰シール剤を、小径管に物体を通して
大径管に押出し、かつ、大径管に物体を通して
大径管外に排出する方法。(b) Either the step of lining the inner surface of a small-diameter pipe by running a small-diameter running object inside the pipe, or the step of lining the inner surface of a large-diameter pipe by running a large-diameter running object inside the pipe, is carried out first. In addition, excess sealant such as sealant that entered the small diameter pipe side during the large diameter pipe lining process is pushed out to the large diameter pipe by passing an object through the small diameter pipe, and pushing an object into the large diameter pipe. A method of discharging water through a large diameter pipe.
(ロ) 上述の小径管ライニング工程を行つた後で、
上述の大径管ライニング工程を行い、その後
で、大径管ライニング工程で小径管内に侵入し
た余剰シール剤を、小径管に物体を通して大径
管に押出し、かつ、大径管に物体を通して大径
管内でライニングに消費する方法。(b) After performing the small diameter pipe lining process described above,
The above-mentioned large-diameter pipe lining process is performed, and after that, the excess sealant that entered the small-diameter pipe in the large-diameter pipe lining process is extruded into the large-diameter pipe by passing an object through the small-diameter pipe, and then extruded by passing an object through the large-diameter pipe and extruding it into the large-diameter pipe. How to consume it for lining inside the pipe.
しかし、上記(イ)項の方法は、多数の小径管が分
岐されている導管に導用した場合、余剰シール剤
の総量がかなり多くなり、その全量を排出して廃
棄処分するとなると、シール剤の無駄と処分との
ために著しく不経済になり、しかも、大径管内で
の余剰シール剤の排出に伴つて、下手側の小径管
側に再びシール剤が侵入するおせそれがある等
の、さらに改良すべき点があつた。 However, when the method in item (a) above is used in a conduit where many small diameter pipes are branched, the total amount of excess sealant becomes quite large, and if the entire amount has to be discharged and disposed of, the sealant It becomes extremely uneconomical due to the waste and disposal of the sealant, and furthermore, as the excess sealant is discharged from the large-diameter pipe, there is a risk that the sealant may re-enter the small-diameter pipe on the lower side. There were some points that needed further improvement.
また、上記(ロ)項の方法は、小径管の分岐側端部
におけるライニングの信頼性に問題が残つてい
た。つまり、例えば都市ガス導管の各家庭への分
岐部では、第２図に示すように、ネジプラグ３を
備えたバルブチー４を大径管のネジチー５に接続
し、小径管６をエルボ７でバルブチー４に接続し
ており、小径管６のライニングに伴つて、バルブ
チー４の内部空間のうちネジプラグ３側の部分を
不完全なライニング膜８で仕切る状態となり、そ
の後で、大径管のライニング工程でネジチー５か
らバルブチー４にシール剤を押込んでも、ライニ
ング膜８やその膜８で封じ込まれたガスによつて
シール剤がネジプラグ３側に十分にかつ確実に浸
入せず、バルブチー４のライニング処理における
信頼性に改良の余地があつた。 Furthermore, the method described in item (b) above still has a problem with the reliability of the lining at the branch side end of the small diameter pipe. That is, for example, at the branch point of a city gas pipeline to each home, as shown in FIG. As the small-diameter pipe 6 is lined, the part of the internal space of the valve cheek 4 on the threaded plug 3 side is partitioned off by an incomplete lining film 8, and then, in the process of lining the large-diameter pipe, the threaded pipe is Even if the sealant is pushed into the valve tee 4 from 5, the sealant does not fully and reliably penetrate into the threaded plug 3 side due to the lining film 8 and the gas sealed in the film 8, which causes problems in the lining process of the valve tee 4. There was room for improvement in reliability.
本発明の目的は、大径及び分岐した小径管のラ
イニングを、導管の分岐点での切断分離を要する
こと無く、しかも、シール剤の無駄や不測な小径
管の閉塞を生じること無く、さらに、バルブチー
のライニング不良を生じること無く行えるように
する点にある。 An object of the present invention is to line a large diameter pipe and a branched small diameter pipe without requiring cutting and separation at a branch point of the pipe, and without wasting sealant or causing unexpected blockage of the small diameter pipe. The object is to be able to perform this without causing a defective valve lining.
本発明の特徴手段は、大径管に対応する大径走
行物体の管内走行により、その大径管の内面をラ
イニングする工程を行い、その後で、小径管に対
応する小径走行物体の管内走行により、その小径
管の内面をライニングすると共に、前記大径管ラ
イニング工程時に小径管内に侵入したシール剤を
大径管内に押戻す工程を行い、その後で、前記大
径管内において走行物体を管内走行させることに
より前記小径管からのシール剤を先に形成したラ
イニング膜上に重ねる状態で消費することにあ
り、その作用効果は次の通りである。 The characteristic means of the present invention is to perform a step of lining the inner surface of the large diameter pipe by running a large diameter running object corresponding to the large diameter pipe inside the pipe, and then lining the inner surface of the large diameter pipe by running a small diameter running object corresponding to the small diameter pipe inside the pipe. In addition to lining the inner surface of the small diameter pipe, a process is performed to push back the sealant that entered the small diameter pipe during the large diameter pipe lining process into the large diameter pipe, and then a traveling object is made to travel within the large diameter pipe. As a result, the sealant from the small-diameter pipe is consumed while being superimposed on the previously formed lining film, and its effects are as follows.
つまり、先ず大径管をライニング処理すると、
分岐点にバルブチーが存在しても、ネジプラグ側
まで十分にシール剤を押込むことができ、次に小
径管をライニング処理すると、バルブチーの全体
に良好なライニングを確実に施せ、もちろん、分
岐点で大径管と小径管を切断分離すること無く、
大径管及び小径管のライニングを行える。 In other words, if you first line the large diameter pipe,
Even if there is a valve tee at the branch point, the sealant can be pushed sufficiently to the threaded plug side.Next, by lining the small diameter pipe, you can ensure that the entire valve tee is well lined. Without cutting and separating large diameter pipes and small diameter pipes,
Can line large and small diameter pipes.
そして、小径管のライニングに伴つて大径管に
押戻したシール剤を、大径管のライニングに積極
的に消費させるから、シール剤の無駄を無くすか
非常に少なくすることができ、かつ、廃棄処分に
必要な手数、設備及び経費を不必要にでき、さら
に、小径管からの余剰シール剤を大径管内で物体
で押流すに際して、小径管の分岐側がシール剤押
込みで不測に閉塞される危検性をほとんど無くす
ことができる。 Since the sealant pushed back into the large-diameter pipe during lining of the small-diameter pipe is actively consumed in lining the large-diameter pipe, waste of sealant can be eliminated or greatly reduced, and The labor, equipment, and expense required for disposal can be eliminated, and when the excess sealant from the small diameter pipe is pushed away with an object in the large diameter pipe, the branch side of the small diameter pipe is accidentally blocked by the sealant being pushed. Risk of detection can be almost eliminated.
その結果、大径管と分岐した小径管のライニン
グを、経費少なく、かつ作業能率良好にしかも良
好なライニングが確実に得られる状態で施せるよ
うになり、殊に埋設された導管の補修に便利なラ
イニング方法が得られた。 As a result, it has become possible to line large-diameter pipes and branched small-diameter pipes at low cost and with good work efficiency while reliably obtaining good lining, making it especially convenient for repairing buried pipes. A lining method was obtained.
次に本発明の実施例を示す。 Next, examples of the present invention will be shown.
第１図イに示すように、大径管P2から小径管P1
が分岐されている導管Ｐにおいて、大径管P2のラ
イニング対象部分の両側を開放すると共に、小径
管P1をメーターコツク等で下流側配管と分離し、
流動性シール剤S2と、それを前後から挾む一対の
大径走行物体２とを大径管P2内に入れ、公知の加
圧流体供給設備で大径管P2内に流体を送入し、両
物体２とシール剤S2を大径管P2内で移動させ、シ
ール剤S2を大径管P2の内面にライニング膜Ｒを形
成する。また、シール剤S2の一部S′2を小径管P1
内に押込む。 As shown in Figure 1A, from large diameter pipe P 2 to small diameter pipe P 1
In the conduit P where the pipe P is branched, both sides of the large diameter pipe P 2 to be lined are opened, and the small diameter pipe P 1 is separated from the downstream pipe using a meter stick, etc.
A fluid sealant S 2 and a pair of large-diameter running objects 2 sandwiching it from the front and back are placed in a large-diameter pipe P 2 , and fluid is fed into the large-diameter pipe P 2 using a known pressurized fluid supply equipment. The two objects 2 and the sealant S2 are moved inside the large-diameter pipe P2 , and the sealant S2 forms a lining film R on the inner surface of the large-diameter pipe P2 . In addition, part of the sealant S 2 S′ 2 is added to the small diameter pipe P 1
Push it inside.
大径管P1の物体２によるライニング工程が完了
すると、第１図ロに示すように、流動性シール剤
S1と、それを前後から挾む一対の小径走行物体１
とを小径管P1内に入れ、公知加圧流体供給設備で
小径管P1内に流体を送入し、両物体１とシール剤
S1を小径管P1内で大径管P2側へ移動させ、小径管
P1の内面にライニング膜Ｒを形成する。そして、
両物体１の作用によつて、シール剤S1の余剰分と
共に、小径管P1内に侵入していたシール剤S′2の
大部分を大径管P2内に押戻す。 When the lining process with the object 2 of the large-diameter pipe P 1 is completed, as shown in Figure 1 (b), a fluid sealant is applied.
S 1 and a pair of small diameter running objects 1 sandwiching it from the front and back
and into the small diameter pipe P 1 , and by supplying fluid into the small diameter pipe P 1 using known pressurized fluid supply equipment, both objects 1 and the sealant are
Move S 1 inside the small diameter pipe P 1 to the large diameter pipe P 2 side,
A lining film R is formed on the inner surface of P1 . and,
By the action of both objects 1, most of the sealant S' 2 that has entered the small diameter pipe P 1 is pushed back into the large diameter pipe P 2 along with the surplus of the sealant S 1 .
その後、第１図ハに示すように、大径管P2内で
前述の物体２よりもやゝ小径の大径走行物体２′
を移動させて、小径走行物体１を排出するととも
に、小径管P1からのシール剤S′1とS′2とを、先に
形成したライニング膜上に重ねるようにして消費
させる。 Thereafter, as shown in FIG .
is moved to discharge the small-diameter traveling object 1, and at the same time, the sealants S' 1 and S' 2 from the small-diameter pipe P 1 are consumed so as to be superimposed on the previously formed lining film.
次に、別の実施例を説明する。 Next, another example will be described.
シール剤消費用の走行物体２′としては、自由
状態でライニングの大径走行物体２よりやゝ小径
となつているもの、つまり、金属、硬質樹脂等の
剛体製のものを用いてもよいし、或いは、走行用
背圧の増減に追随して体積又は形状変化させてラ
イニングの走行物体２よりやゝ小径の状態に補正
し得るものを用いてもよい。 As the traveling object 2' for consuming the sealant, one whose diameter is slightly smaller than the large-diameter traveling object 2 of the lining in a free state, that is, an object made of a rigid body such as metal or hard resin may be used. Alternatively, it is also possible to use one that can be corrected to a state where the lining has a smaller diameter than the traveling object 2 by changing its volume or shape in accordance with the increase or decrease of the traveling back pressure.
本発明は、小径管P1が多数ある導管Ｐにも適用
でき、その場合、多数の小径管ライニング工程を
同時、又は、時間差をおいて並行的又は順次的に
行うか、又は、適当本数の小径管P1を１グループ
として区分してその区分毎に行う。 The present invention can be applied to a conduit P having a large number of small diameter pipes P1 , and in that case, a large number of small diameter pipe lining processes can be performed simultaneously, in parallel or sequentially with a time difference, or an appropriate number of small diameter pipes can be lined. Divide the small diameter pipe P 1 into one group and perform the process for each group.
第１図イないしハは本発明の実施例における施
工手順を示す概念図である。第２図は比較例の問
題を説明するための分岐部詳細書である。
Ｐ……導管、P1……小径管、P2……大径管、１
……小径走行物体、２……大径走行物体、２′…
…走行物体、S1，S2，S′2……シール剤。
FIGS. 1A to 1C are conceptual diagrams showing the construction procedure in an embodiment of the present invention. FIG. 2 is a detailed description of branching parts for explaining the problems of the comparative example. P...Pipe, P1 ...Small diameter pipe, P2 ...Large diameter pipe, 1
...Small diameter running object, 2...Large diameter running object, 2'...
...running object, S 1 , S 2 , S′ 2 ... sealing agent.
Claims (1)
Ｐ内に挿入した物体の管内走行によつて流動性シ
ール剤S1，S2を導管Ｐ内面に筒膜状にライニング
する方法であつて、前記大径管P2に対応する大径
走行物体２の管内走行により、その大径管P2の内
面をライニングする工程を行い、その後で、前記
小径管P1に対応する小径走行物体１の管内走行に
より、その小径管P1の内面をライニングすると共
に、前記大径管ライニング工程時に小径管P1内に
侵入したシール剤S′2を大径管P2内に押戻す工程
を行い、その後で、前記大径管P2内において走行
物体２′を管内走行させることにより前記小径管
P1からのシール剤S′2を先に形成したライニング
膜上に重ねる状態で消費することを特徴とする導
管ライニング方法。 ２ 前記シール剤消費用の走行物体２′として、
自由状態において前記大径管ライニング用走行物
体２よりやゝ小径のものを用いる特許請求の範囲
第１項に記載の導管ライニング方法。 ３ 前記シール剤消費用の走行物体２′として、
該走行物体２′に対する走行用背圧により前記大
径管ライニング用走行物体２よりやゝ小径に変形
可能なものを用いる特許請求の範囲第１項に記載
の導管ライニング方法。[Claims] 1. Fluid sealants S 1 and S 2 are applied to the inner surface of the conduit P by running an object inserted into the conduit P where the small diameter pipe P 1 is branched from the large diameter pipe P 2 . This is a membrane-like lining method, in which a large-diameter running object 2 corresponding to the large-diameter pipe P 2 runs inside the pipe to line the inner surface of the large-diameter pipe P 2 , and then the small-diameter pipe By running the small-diameter traveling object 1 corresponding to P 1 inside the pipe, the inner surface of the small-diameter pipe P 1 is lined, and the sealant S′ 2 that has entered the small-diameter pipe P 1 during the large-diameter pipe lining process is transferred to the large-diameter pipe. A step of pushing it back into the large diameter pipe P 2 is carried out, and after that, the traveling object 2' is moved inside the large diameter pipe P 2 to remove the small diameter pipe.
A method for lining a conduit, characterized in that the sealant S′ 2 from P 1 is consumed in a state in which it is superimposed on a previously formed lining film. 2 As the traveling object 2' for consuming the sealant,
2. A conduit lining method according to claim 1, in which a traveling object for lining a large diameter pipe is used that has a diameter slightly smaller than that of the traveling object 2 for lining a large diameter pipe in a free state. 3. As the traveling object 2' for consuming the sealant,
2. The conduit lining method according to claim 1, wherein the traveling object 2' is deformed into a diameter slightly smaller than that of the large-diameter pipe lining traveling object 2 by applying a running back pressure to the traveling object 2'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14955280A JPS5775179A (en) | 1980-10-24 | 1980-10-24 | Lining method for conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14955280A JPS5775179A (en) | 1980-10-24 | 1980-10-24 | Lining method for conduit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5775179A JPS5775179A (en) | 1982-05-11 |
| JPS6124065B2 true JPS6124065B2 (en) | 1986-06-09 |
Family
ID=15477650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14955280A Granted JPS5775179A (en) | 1980-10-24 | 1980-10-24 | Lining method for conduit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5775179A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61229505A (en) * | 1985-04-05 | 1986-10-13 | コスモエンジニアリング株式会社 | Inner-surface lining method of pipe |
| FR2597782B1 (en) * | 1986-04-28 | 1989-02-17 | Sagawa Sizuo | METHOD OF LINING A PIPELINE WITH A FLEXIBLE CYLINDRICAL FILM |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5765364A (en) * | 1980-10-07 | 1982-04-20 | Osaka Gas Co Ltd | Lining of conduit |
-
1980
- 1980-10-24 JP JP14955280A patent/JPS5775179A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5765364A (en) * | 1980-10-07 | 1982-04-20 | Osaka Gas Co Ltd | Lining of conduit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5775179A (en) | 1982-05-11 |
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