JPS62171770A - Device for lining inner surface of existing pipe - Google Patents
Device for lining inner surface of existing pipeInfo
- Publication number
- JPS62171770A JPS62171770A JP1244286A JP1244286A JPS62171770A JP S62171770 A JPS62171770 A JP S62171770A JP 1244286 A JP1244286 A JP 1244286A JP 1244286 A JP1244286 A JP 1244286A JP S62171770 A JPS62171770 A JP S62171770A
- Authority
- JP
- Japan
- Prior art keywords
- pig
- existing pipe
- resin
- pipe
- columnar body
- 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.)
- Pending
Links
- 239000011347 resin Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000010409 thin film Substances 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は既設管内面のライニング装置に関する。[Detailed description of the invention] Industrial applications The present invention relates to a lining device for the inner surface of an existing pipe.
従来の技術
下水用の管としてコンクリート管が多用されているが、
このコンクリート管は、下水中から発生する硫化水素等
により管頂部が腐蝕しやすいという欠点がある。従来、
このような腐蝕が進行した場合には、既設管を新管に敷
設替えするという対策がとられている。Conventional technology Concrete pipes are often used as sewage pipes, but
This concrete pipe has the disadvantage that the top of the pipe is easily corroded by hydrogen sulfide etc. generated from sewage. Conventionally,
If such corrosion progresses, a countermeasure is taken to replace the existing pipe with a new pipe.
発明が解決しようとする問題点
ところが、このように既設管を新管に敷設替えすると、
工事が大計りになるため、工期および工費を多大に要す
るという問題点がある。Problems that the invention aims to solveHowever, when replacing existing pipes with new pipes,
Since the construction work is extensive, there is a problem in that it requires a large amount of time and cost.
そこで本発明はこのような問題点を解決し、既設管内面
における腐蝕の発生を防止するため、この既設管の内面
に簡単に防食用のライニングを施すことができるように
することを目的とする。Therefore, an object of the present invention is to solve such problems and to make it possible to easily apply anti-corrosion lining to the inner surface of the existing pipe in order to prevent corrosion from occurring on the inner surface of the existing pipe. .
問題点を解決するための手段
上記問題点を解決するため本発明は、既設管内面に接触
してこの既設管内を移動可能なピグと、このピグの後方
においてピグとともに既設管内を移動可能であるととも
に、既設管との間に隙間を形成可能な円柱状体と、ピグ
と円柱状体との間に形成された樹脂充填空間とを備えた
しのである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a pig that is movable within the existing pipe by contacting the inner surface of the existing pipe, and a pig that is movable within the existing pipe together with the pig behind the pig. It also includes a cylindrical body that can form a gap with the existing pipe, and a resin-filled space formed between the pig and the cylindrical body.
作用
このような構成において、既設管内にライニングを施す
場合には、この既設管内にピグと円柱状体とを配置して
樹脂充填空間内に未硬化の樹脂な充填し、ピグと円柱状
体とを走行させる。すると、樹脂が円柱状体と既設管と
の隙間に入り込んで既設管の内面に付着し、円柱状体が
通過した後は既設管の内周に樹脂層が形成されて樹脂ラ
イニングが施されることになる。In such a configuration, when lining an existing pipe, the pig and the cylindrical body are arranged inside the existing pipe, the resin filling space is filled with uncured resin, and the pig and the cylindrical body are lined. run. Then, the resin enters the gap between the cylindrical body and the existing pipe and adheres to the inner surface of the existing pipe, and after the cylindrical body passes, a resin layer is formed on the inner periphery of the existing pipe, and the resin lining is applied. It turns out.
実施例
第１図は本光明の第１の実施例を示すものである。ここ
で１は］ンクリー１〜管にて構成される既設管で、土中
にＦｌｊ設されている。Embodiment FIG. 1 shows a first embodiment of the present invention. Here, 1 is an existing pipe composed of concrete 1 to pipe, which is installed in the soil.
２はタイヤ状のピグで、その内部に注入された圧縮空気
の作用により既設管１内に圧接した状態ひ、この既設管
１内を管軸方向に移動可能とされている。３は円柱状体
としての中空ビグで、その外径が既設管１の内径よりも
やや小径となるように形成されて、この既設管１との間
に隙間４を形成可能とされている。また中空ピグ３にお
けるピグ２側端部には、ピグ２から遠ざかるにつれて次
第に拡径する外周デーパ面５が形成されている。Reference numeral 2 denotes a tire-shaped pig, which is pressed into the existing pipe 1 by the action of compressed air injected into the pig, and is movable within the existing pipe 1 in the axial direction of the pipe. Reference numeral 3 denotes a hollow vig as a cylindrical body, which is formed so that its outer diameter is slightly smaller than the inner diameter of the existing pipe 1, so that a gap 4 can be formed between it and the existing pipe 1. Further, an outer peripheral tapered surface 5 whose diameter gradually increases as it moves away from the pig 2 is formed at the end of the hollow pig 3 on the pig 2 side.
中空ピグ３のビグ２側の端部には、管軸方向の連結棒６
が取付けられている。この連結棒６は中空の鋼管等にて
構成され、ピグ２の中心部を貫通してその先端部がピグ
２から突出し、かつこの先端部には牽引具掛止用のリン
グ７が取付けられている。中空ピグ３とピグ２との間に
おける連結棒６部分には蛇腹状のスリーブ８が外ばめさ
れ、このスリーブ８と、ピグ２と、中空ピグ３と、既設
管１とにより、Ｍ！４脂充填空間９が形成されている。At the end of the hollow pig 3 on the big 2 side, there is a connecting rod 6 in the tube axis direction.
is installed. The connecting rod 6 is made of a hollow steel pipe or the like, and passes through the center of the pig 2 so that its tip protrudes from the pig 2, and a ring 7 for hooking a towing device is attached to the tip. There is. A bellows-shaped sleeve 8 is externally fitted onto the connecting rod 6 portion between the hollow pig 3 and the pig 2, and this sleeve 8, the pig 2, the hollow pig 3, and the existing pipe 1 connect the M! 4 fat filling spaces 9 are formed.
この空間９内には、未硬化の熱硬化性の樹脂１０が充填
されている。This space 9 is filled with an uncured thermosetting resin 10.
中空ピグ３におけるピグ２とは反対側の端部には、環状
の加熱器１１が取付けられている。この加熱器１１は、
中空ピグ３と同様に既設管１との間に隙間１２を形成可
能に構成され、かつ電熱４ｉ造により熱を発生可能とな
っている。１３は加熱器への電気ケーブルで、中空ピグ
３および連結棒６内を通って、ピグ２よりも前方の電源
部に導かれている。An annular heater 11 is attached to the end of the hollow pig 3 opposite to the pig 2. This heater 11 is
Like the hollow pig 3, it is configured so that a gap 12 can be formed between it and the existing pipe 1, and heat can be generated by the electric heating 4i construction. Reference numeral 13 denotes an electric cable to the heater, which passes through the hollow pig 3 and the connecting rod 6 and is led to a power source section in front of the pig 2.
このような構成において、既設管１の内面にライニング
を施す場合には、図示のように管１内にピグ２、中空ピ
グ３等を搬入し、空間９内には樹脂１０を充填しておく
。In such a configuration, when lining the inner surface of the existing pipe 1, the pig 2, hollow pig 3, etc. are carried into the pipe 1 as shown in the figure, and the space 9 is filled with resin 10. .
次に連結棒６のリング７にウィンチワイヤ等の牽引具、
を連結し、この連結棒６を牽引する。すると、連結棒６
により中空ピグ３および加熱器１１が引張られ、この結
果樹脂１０およびピグ２が中空ピグ３に押されて、既設
管１内を移動する。Next, attach a traction device such as a winch wire to the ring 7 of the connecting rod 6.
and pull this connecting rod 6. Then, connecting rod 6
The hollow pig 3 and the heater 11 are pulled, and as a result, the resin 10 and the pig 2 are pushed by the hollow pig 3 and move inside the existing pipe 1.
これにより、空間９内の樹脂１０は中空ピグ３からの押
圧力とピグ２からの反力を受けて加圧され、外周デーパ
面５に沿って隙間４に案内され、この隙ｌ！０４に全周
にわたって注入されることになる。As a result, the resin 10 in the space 9 is pressurized by the pressing force from the hollow pig 3 and the reaction force from the pig 2, and is guided into the gap 4 along the outer peripheral tapered surface 5, and this gap l! 04 over the entire circumference.
その後、連結棒６の牽引により中空ピグ３が通過すると
、この樹脂１０の内周を加熱器１１が通り、この加熱器
１１により樹脂１０が加熱硬化されて、既設管１の内面
に樹脂ライニング層１４が形成される。Thereafter, when the hollow pig 3 passes by being pulled by the connecting rod 6, a heater 11 passes through the inner periphery of the resin 10, and the heater 11 heats and hardens the resin 10, forming a resin lining layer on the inner surface of the existing pipe 1. 14 is formed.
なお、このように樹脂ライニング層１４が形成されると
、ピグ２と中空ピグ３との間の未硬化の樹脂１０が減少
ヅるが、これにつれてスリーブ８が収縮してピグ２が中
空ピグ３に近づくため、樹脂充填空間９の容積もこれに
対応して減少する。Note that when the resin lining layer 14 is formed in this way, the uncured resin 10 between the pig 2 and the hollow pig 3 decreases, but the sleeve 8 contracts accordingly, and the pig 2 becomes the hollow pig 3. , the volume of the resin filling space 9 also decreases accordingly.
第２図〜第３図は本発明の第２の実施例を示すものであ
る。本例では、回転楕円体状の軽めのピグ２１に、前述
と同様に［１設管２２との間に隙間２３を形成しかつ外
周テーパ面２４を有した中空の円柱状体２５が連結され
ている。２６は遅硬化性の樹脂で、樹脂充填空間２７内
に充填されている。2 and 3 show a second embodiment of the present invention. In this example, a hollow cylindrical body 25 that forms a gap 23 with the installed pipe 22 and has an outer peripheral tapered surface 24 is connected to a light spheroidal pig 21, as described above. has been done. A slow-curing resin 26 is filled in the resin filling space 27 .
円柱状体２５の後部には、格納台２８が取付けられてい
る。この格納台２８は、内筒２９を有するとともに既設
管２２との間に隙間３０を形成する外筒３１を有した二
重筒構造とされ、両筒２９．３１間の環状空間には、ス
リーブ状の薄膜３２が蛇腹状にたたんで収納されている
。この薄膜３２は、既設管２２の内径よりもやや小径に
形成されて格納台２８から繰り出し可能とされ、かつ既
設管２２の管路長に合わせた一定長さにわたって連続状
に形成されている。第３図にも示すように、内筒２９の
先端には、薄膜３２の収納部を閉塞するための７ランジ
状蓋部３３が形成されている。一方、外８３１の先端に
は薄膜３２の繰り出しを案内するための断面円形のガイ
ド部３４が形成され、かつ７ランジ状蓋部３３の周縁に
は、ガイド部３４との間で薄膜３２を挟み付は可能なＯ
リング３５が設けられている。、また、格納台２８から
繰り出された薄膜３２の先端部３６は、既設管２２の管
路の一端部３７に固定されている。A storage stand 28 is attached to the rear part of the columnar body 25. This storage platform 28 has a double-tube structure including an inner tube 29 and an outer tube 31 that forms a gap 30 with the existing tube 22. The thin film 32 is folded into a bellows shape and stored. This thin film 32 is formed to have a diameter slightly smaller than the inner diameter of the existing pipe 22 so that it can be drawn out from the storage platform 28, and is continuously formed over a certain length that matches the length of the existing pipe 22. As shown in FIG. 3, a seven-lunge-shaped lid portion 33 is formed at the tip of the inner cylinder 29 to close the storage portion of the thin film 32. As shown in FIG. On the other hand, a guide part 34 having a circular cross section for guiding the drawing out of the thin film 32 is formed at the tip of the outer part 831, and the thin film 32 is sandwiched between the guide part 34 and the peripheral edge of the seven-lung-like lid part 33. Attachment is possible O
A ring 35 is provided. Further, the tip portion 36 of the thin film 32 let out from the storage stand 28 is fixed to one end portion 37 of the pipe line of the existing pipe 22.
この既設管２２の一端部３７には、周囲の土砂が開削さ
れて葺材３８が取付けられている。３９は蓋材３８を一
端部３７に押圧するためのジヤツキ、４０は蓋材３８と
既設管２２との間に設けられたシール材、４１はシール
材４０を圧縮してシール機能を発揮させるため１４７１
３８に締結された押輪である。蓋材３８にはバルブ４２
付きの加圧水供給口４３が設けられ、既設管２２内にお
ける＠％３２の内部に加圧水４４を供給可能となってい
る。A roofing material 38 is attached to one end 37 of the existing pipe 22 by excavating the surrounding earth and sand. 39 is a jack for pressing the lid member 38 against the one end portion 37; 40 is a sealing material provided between the lid member 38 and the existing pipe 22; and 41 is for compressing the sealing material 40 to exhibit a sealing function. 1471
It is a push ring fastened to 38. A valve 42 is attached to the lid material 38.
A pressurized water supply port 43 is provided, and pressurized water 44 can be supplied to the interior of @%32 in the existing pipe 22.
このＪ：うな構成において、既設？！２２の内面にライ
ニングを／７１！ｉｔｓ合には、まず、この既設管２２
内にピグ２１と円柱状体２５を挿入して空間２７内に樹
脂２６を充填する。かつ薄膜３２の先端部３６を既設管
２２の一端部３７に固定して、この既ＦＸＱ管２２の一
端部３７を蓋材３８にて閉塞する。In this J: Eel configuration, is it already installed? ! Lining the inside of 22/71! If the existing pipe 22
A pig 21 and a cylindrical body 25 are inserted into the space 27, and a resin 26 is filled in the space 27. Then, the tip 36 of the thin film 32 is fixed to one end 37 of the existing pipe 22, and the one end 37 of the existing FXQ pipe 22 is closed with a lid member 38.
次にパルプ４２を開き、既設管２２内に加圧水４４を供
給する。すると、この加圧水４４は円柱状体２５の後端
面４５に作用し、円柱状体２５とピグ２１とを前方へ押
し初かす。これにより、空間２７内の樹脂２６がピグ２
１と円柱状体２５との間で押し上けられ、隙間２３の全
周に入り込む。また、円柱状体２５の移動により格納台
２８から薄膜３２が繰り出される。このλや膜３２は、
隙間２３．３０からの樹脂２６を既設管２２との間に挟
み込み、その内面に作用Ｊる加圧水４４の水圧により、
既設管２２の内面に押圧される。このとき、前述の０リ
ング３５は、格納台２８における内外筒２９．３１間に
加圧水４４と樹脂２６とが入り込むのを防止するための
シール材として機能する。Next, the pulp 42 is opened and pressurized water 44 is supplied into the existing pipe 22. Then, this pressurized water 44 acts on the rear end surface 45 of the cylindrical body 25 and pushes the cylindrical body 25 and the pig 21 forward. As a result, the resin 26 in the space 27 is transferred to the pig 2.
1 and the cylindrical body 25, and enters the entire circumference of the gap 23. Further, the movement of the columnar body 25 causes the thin film 32 to be drawn out from the storage table 28. This λ and the film 32 are
The resin 26 from the gap 23.30 is sandwiched between the existing pipe 22 and the water pressure of the pressurized water 44 acting on its inner surface causes
It is pressed against the inner surface of the existing pipe 22. At this time, the aforementioned O-ring 35 functions as a sealing material for preventing the pressurized water 44 and the resin 26 from entering between the inner and outer cylinders 29 and 31 in the storage platform 28.
その後、樹脂２６が硬化すれば、既設管２２の内面に樹
脂２６と薄膜３２とからなるライニング層４６が形成さ
れるため、加圧水４４を抜くとともにピグ２１等を管外
へ搬出する。なお、加圧水４４として温水を利用すれば
、樹脂２６の硬化速度をある程度速くすることができる
。Thereafter, when the resin 26 hardens, a lining layer 46 made of the resin 26 and the thin film 32 is formed on the inner surface of the existing pipe 22, so that the pressurized water 44 is removed and the pig 21 and the like are carried out of the pipe. Note that if warm water is used as the pressurized water 44, the curing speed of the resin 26 can be increased to some extent.
発明の効果
以上述べたように本発明によると、既設管の内面に容易
にライニングを施すことができて、この既設管の防食を
図ることができる。Effects of the Invention As described above, according to the present invention, the inner surface of an existing pipe can be easily lined, and the existing pipe can be protected from corrosion.
第１図は本発明の第１の実施例の正面図、第２図は本発
明の第２の実施例の正面図、第３図は第２図における要
部拡大図である。
１・・・既設管、２・・・ピグ、３・・・中空ピグ（円
柱状体）、４・・・隙間、９・・・樹脂充填空間、２１
・・・ピグ、２２・・・既設管、２３・・・隙間、２５
・・・円柱状体、２７・・・樹脂充填空間FIG. 1 is a front view of a first embodiment of the present invention, FIG. 2 is a front view of a second embodiment of the present invention, and FIG. 3 is an enlarged view of the main part of FIG. 2. DESCRIPTION OF SYMBOLS 1... Existing pipe, 2... Pig, 3... Hollow pig (cylindrical body), 4... Gap, 9... Resin filling space, 21
...Pig, 22...Existing pipe, 23...Gap, 25
...Cylindrical body, 27...Resin-filled space
Claims (1)
グと、このピグの後方においてピグとともに既設管内を
移動可能であるとともに、既設管との間に隙間を形成可
能な円柱状態と、ピグと円柱状態との間に形成された樹
脂充填空間とを備えたことを特徴とする既設管内面のラ
イニング装置。1. A pig that can move within the existing pipe by contacting the inner surface of the existing pipe, and a cylindrical shape that is movable within the existing pipe together with the pig behind the pig and that can form a gap between the pig and the existing pipe; A lining device for the inner surface of an existing pipe, comprising a resin-filled space formed between a pig and a cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1244286A JPS62171770A (en) | 1986-01-22 | 1986-01-22 | Device for lining inner surface of existing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1244286A JPS62171770A (en) | 1986-01-22 | 1986-01-22 | Device for lining inner surface of existing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62171770A true JPS62171770A (en) | 1987-07-28 |
Family
ID=11805425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1244286A Pending JPS62171770A (en) | 1986-01-22 | 1986-01-22 | Device for lining inner surface of existing pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018104933A1 (en) * | 2016-12-01 | 2018-06-14 | Samuel Perstnev | The method of repair from inside of large diameter pipes |
-
1986
- 1986-01-22 JP JP1244286A patent/JPS62171770A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018104933A1 (en) * | 2016-12-01 | 2018-06-14 | Samuel Perstnev | The method of repair from inside of large diameter pipes |
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