JPS59115770A - Coating method of inside surface of pipe - Google Patents
Coating method of inside surface of pipeInfo
- Publication number
- JPS59115770A JPS59115770A JP22523882A JP22523882A JPS59115770A JP S59115770 A JPS59115770 A JP S59115770A JP 22523882 A JP22523882 A JP 22523882A JP 22523882 A JP22523882 A JP 22523882A JP S59115770 A JPS59115770 A JP S59115770A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- pipe
- rope
- backing
- tube
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、管の内面に液状の接着剤や塗料を塗布する方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of applying a liquid adhesive or paint to the inner surface of a tube.
例えば、水道管やガス管が老朽化した場合、内面をエポ
キシ塗料で、ライニングしたり、また接着剤を塗布した
上に、チューブを張りつけたりする工法が行なわれてい
る。また」1記以外の目的で管の内面に粘性のある液体
を塗布することもよく行なわれることである。これらの
管が短かければ塗布の方法は種々考えられるが、例えば
100mといったような長尺管の場合は、塗布治具に上
る操作を管の入口から50m先で行なわなければならな
いので、特殊な方法が必要である。For example, when water pipes or gas pipes are old, construction methods are used such as lining the inner surface with epoxy paint or applying adhesive and then attaching the tube. It is also common practice to apply a viscous liquid to the inner surface of a tube for purposes other than those mentioned above. If these pipes are short, various coating methods can be considered, but in the case of long pipes, such as 100 m, special methods are required because the operation of climbing onto the coating jig must be performed 50 m from the pipe entrance. A method is needed.
一般にこれらの粘性体を長尺の管内面に塗布するには、
先端に噴射治具を取付けたホースを管内に挿入し、走行
させポンプで該粘性体を送り込み、順次粘性体を管壁に
吹きつける方法が行なわれている。また管の片端から塗
料などを流し込みこれを弾性体などから成るバッキング
で押すことにより、ある厚みの被膜を形成する方法も行
なわれている。Generally, in order to apply these viscous substances to the inner surface of a long pipe,
A method is used in which a hose with a spraying jig attached to its tip is inserted into a pipe, is run, and the viscous material is delivered by a pump, and the viscous material is sequentially sprayed onto the pipe wall. Another method is to form a coating of a certain thickness by pouring paint or the like into one end of a tube and pressing it with a backing made of an elastic material or the like.
前者の方法は、ポンプの吐出圧力、噴射冶具の走行速度
、粘性体の粘度等を調整することにより均一な塗布を施
すことが出来るが、例えば100mの長さの管内を塗布
するためには、100m以上のホースが必要であり、こ
のホース先端で噴射させるためには、ホース長による圧
力損失があるので粘性体の送入圧力をそれに見合って高
くしなければならない。したがってホースは高圧ホース
を使用する必要があり、ポンプも含めてかなり高い設備
コストが必要という欠点を有している。In the former method, uniform coating can be achieved by adjusting the discharge pressure of the pump, the running speed of the injection jig, the viscosity of the viscous material, etc.; however, in order to coat the inside of a 100 m long pipe, A hose of 100 m or more is required, and in order to inject at the tip of this hose, there is a pressure loss due to the length of the hose, so the pressure for feeding the viscous material must be increased accordingly. Therefore, it is necessary to use a high-pressure hose, which has the drawback of requiring a considerably high equipment cost including the pump.
一方、塗料などをバッキングで押して塗布する場合は、
単独のピグではバッキング前方の粘性体は自重のためフ
ローするので、管の上部内面への塗布が不完全となる。On the other hand, when applying paint by pressing it with a backing,
If a single pig is used, the viscous material in front of the backing will flow due to its own weight, resulting in incomplete application to the inner surface of the upper part of the pipe.
このため例えば二つのバッキングの間に塗料などを入れ
バッキングにより塗料などが圧縮される形をとり、管内
面の全面に塗布できるような方法がとられている。For this reason, for example, a method is used in which paint is placed between two backings and the paint is compressed by the backing so that it can be applied to the entire inner surface of the tube.
ところで、水道やガス管などの配管には一般に分岐部が
あり、」ユ記の方法をとると塗料などの粘性体が分岐部
の開孔から分岐管内へ流れ込むため、分岐部が閉塞され
るという問題がある。By the way, pipes such as water and gas pipes generally have branch points, and if the method described in ``U'' is used, viscous substances such as paint will flow into the branch pipe through the openings in the branch point, causing the branch point to become clogged. There's a problem.
上記従来の方法を図面に従い説明する。The above conventional method will be explained with reference to the drawings.
第1図のように管(1)内に接着剤、防食塗料などの流
動性材料(以下代表例として接着剤を用いる)(2)を
充填し、これをバッキング(3)で押していく場合、流
動性のため接着剤(2)が前方へ流れる傾向があり、特
にバッキング(3)が前方へ進むに従い接着剤の量が減
少した時に管(1)の上部内面への塗布が不十分となる
。これを防ぐために接着剤(2)の前方にもバッキング
を配置する方法が考えられるが、前後のバッキングが一
定の間隔て連結されているだけでは接着剤が減少した時
には単独のバッキングで押す場合と同じ現象が見られる
。そこで第2図のように、前方の第2のバッキング(3
2)を後方の第1のバッキング(31)及びこれに連結
されたロープ(4)に対してフリーにしておくことによ
り、後方の第1のバッキング(31)が接着剤(2)を
押すのに対し、前方の第2のバッキング(32)が接着
剤(2)の流れを防止し、ひいて+4接着剤内に圧力を
発生させ、管内面の全面に塗布させることが出来る。し
かし接着剤内にある圧力が発生するために管の途中に存
在する分岐部(5)で、接着剤(2)が分岐管内へ噴出
する形となり、分岐部(5)を閉塞するという欠点があ
る。As shown in Fig. 1, when a fluid material (2) such as adhesive or anticorrosive paint (adhesive is used as a typical example) is filled into the tube (1) (2) and pushed with a backing (3), Due to its fluidity, the adhesive (2) tends to flow forward, resulting in insufficient application to the upper inner surface of the tube (1), especially when the amount of adhesive decreases as the backing (3) moves forward. . In order to prevent this, it is possible to place a backing in front of the adhesive (2), but if the front and rear backings are simply connected at a certain interval, it may be necessary to press with a single backing when the adhesive decreases. The same phenomenon can be seen. Therefore, as shown in Figure 2, the second backing (3
2) is free from the rear first backing (31) and the rope (4) connected to it, so that the rear first backing (31) presses the adhesive (2). On the other hand, the second backing (32) at the front prevents the adhesive (2) from flowing, thereby creating pressure within the +4 adhesive and allowing it to be applied to the entire inner surface of the tube. However, because a certain pressure is generated in the adhesive, the adhesive (2) sprays out into the branch pipe at the branch part (5) that exists in the middle of the pipe, resulting in the problem that the branch part (5) is blocked. be.
本発明は、この問題を解決するためになされたもので布
などの細かい孔を有する素材から成る袋に粘性体を充填
したものに、外部から圧力を加えると、内部の粘性体が
滲み出す性質を利用するもので、この袋の前後にバッキ
ングを配し、この両方のバッキングをロープ又は棒状物
体で連結したものを管内へ引込むと共に前後のバッキン
グが、相互に相対的に近づくようにして袋を圧迫して粘
性体を滲み出させ管内面に塗布する方法である。The present invention was developed to solve this problem.When pressure is applied from the outside to a bag made of a material with fine holes, such as cloth, filled with a viscous substance, the viscous substance inside oozes out. This method uses backings at the front and rear of the bag, and connects both backings with a rope or rod-like object and pulls it into the pipe, bringing the front and rear backings relatively close to each other to open the bag. This method uses pressure to exude a viscous material and apply it to the inner surface of the tube.
本発明の一例は第3図に示すように接着剤(2)を布な
どの袋(6)に入れたものを前後の第1及び第2のバッ
キング(31(321の間に入れることにより、後方第
1のバッキング(31)を前方に牽引ロープ(42)に
より引張ると、前方の第2のバッキング(32)をロー
プ(41)が挿通して牽引ロープ(42)とつながって
一体のロープとなつ℃いるので第2のバッキング(32
)とノクツキング(31)が相対的に近づくことにより
袋(6)を圧迫する現象を利用し袋(6)の微小孔から
接着剤(2)を滲み出させて管内面に塗布きせるもので
ある。又第2のバッキング(32)を挿通する部分のロ
ープ(41)は棒状物体でも良い。接着剤の滲み出しを
利用するため該治具の引張り速度を調整することにより
、一定の量で塗布することが出来、分岐部でも急激なる
噴出が無いため、分岐部を閉塞する恐れが無0ものであ
る。An example of the present invention, as shown in FIG. When the rear first backing (31) is pulled forward by the tow rope (42), the rope (41) passes through the front second backing (32) and connects with the tow rope (42), forming an integrated rope. Natsu ℃ so the second backing (32
) and the knocking (31) come relatively close to each other, compressing the bag (6), which causes the adhesive (2) to ooze out from the micropores of the bag (6) and coat it on the inner surface of the tube. . Further, the portion of the rope (41) that passes through the second backing (32) may be a rod-shaped object. By adjusting the pulling speed of the jig to utilize the seepage of the adhesive, it is possible to apply a constant amount, and there is no sudden ejection even at the branching part, so there is no risk of blocking the branching part. It is something.
バッキングとしては円板状または球状のものが一般的で
あるが、これに限定されるものではない。The backing is generally disk-shaped or spherical, but is not limited to this.
材質としては軟質のゴムや発泡プラスチックなど柔軟性
と弾力性があり、またその大きさは管の内径にフィツト
するものであれば良い。また袋を圧迫し℃、接着剤など
を滲み出させる力はバッキング(32)と管(1)の内
壁間に働く摩擦力により容易に第2のバッキング(32
)が前方へ進まぬという状態を利用するので、第2のバ
ッキング(32)の径の大きさが第1のバッキング(3
1)より大きい方が一般的に望ましい。しかしこれも袋
に存在する微小孔の大きさによって圧力がかかり過ぎる
結果となるので適宜第2のバッキング(32)の大きさ
を調整する必要がある。The material may be flexible and elastic, such as soft rubber or foamed plastic, and the size may be one that fits the inner diameter of the pipe. In addition, the force that presses the bag and causes adhesive, etc. to ooze out is easily transferred to the second backing (32) due to the frictional force acting between the backing (32) and the inner wall of the tube (1).
) does not move forward, so the diameter of the second backing (32) is larger than that of the first backing (32).
1) Larger values are generally desirable. However, this also results in too much pressure depending on the size of the micropores present in the bag, so it is necessary to adjust the size of the second backing (32) appropriately.
袋の材質としては木綿、ナイロン、テトロンなどから成
る布またはポリエチレン、軟質塩ビ、ナイロンなどのプ
ラスチックシートに微小孔を設けたもののいずれを用い
ても良い結果が得られた。Good results were obtained when the bag was made of cloth made of cotton, nylon, tetron, etc., or a plastic sheet made of polyethylene, soft PVC, nylon, etc. with micropores formed therein.
塗布が進行するに従って第1のバッキング(31)と第
2のバッキング(32)との間隔が狭くなり、袋が圧縮
されるので柔軟なものの方が望ましい。As the coating progresses, the distance between the first backing (31) and the second backing (32) becomes narrower and the bag is compressed, so a flexible one is preferable.
袋は任意の個数で良いが、1個よりも複数個あった方が
、バッキング間隔が狭くなった時の袋の縮小がスムーズ
に行なかれ、バッキングに挾まれた部分の管壁になじみ
やすいという利点がある。Any number of bags may be used, but it is said that it is better to have multiple bags than one, because when the spacing between backings becomes narrower, the bags will shrink more smoothly, and will fit better into the pipe wall where they are sandwiched between backings. There are advantages.
1個の場合は、袋の内部をロープ又は棒状物体が挿通す
る形にするか、或は長尺状の袋をロープ又は棒状物体の
周りに巻くように配される。In the case of one bag, a rope or rod-like object is inserted through the inside of the bag, or a long bag is arranged so as to be wound around the rope or rod-like object.
第1図は従来の管内面塗布方法を示す縦断面図、第2図
は第1図の方法を改良した管内面塗布方法を示す縦断面
図。第3図は本発明の一実施例の管内面塗布方法を示す
縦断面図である。
(])管、(2)−接着剤、(31)第1のバッキング
、(32)・・第2のバッキング、(41)・ロープ、
(42) 牽引ロープ、(5)・分岐管、(6)袋。FIG. 1 is a longitudinal sectional view showing a conventional method for coating the inside of a tube, and FIG. 2 is a longitudinal sectional view showing a method for coating the inside of a tube that is an improved method of the method shown in FIG. FIG. 3 is a longitudinal sectional view showing a method for coating the inner surface of a tube according to an embodiment of the present invention. (]) Pipe, (2) - adhesive, (31) first backing, (32)... second backing, (41) - rope,
(42) Tow rope, (5) branch pipe, (6) bag.
Claims (4)
流動性材料を充填し、該袋をローフ又しよ捧M(物体で
連結された弾性体から成る第1及012のバッキングの
間に配した状態で、上記ローツブ又をよ棒状物体に連結
する牽引ローブで前記袋を管内して引込むことにより、
前記袋から滲み出す流動性材料を管内面に塗布すること
を特徴とする管内面塗布方法。(1) In a bag made of a porous membrane that can permeate a fluid material,
Filled with a flowable material, the bag is placed between the first and second backings made of an elastic body connected by a loaf or rod M (object), and the loaf or rod is connected to the rod-shaped object. By pulling the bag into the tube with a traction lobe,
A method for coating an inner surface of a tube, comprising applying a fluid material exuding from the bag onto the inner surface of the tube.
請求の範囲第(1)項記載の管内面塗布方法。(2) The method for coating an inner surface of a tube according to claim (1), wherein the porous membrane is a cloth or a mesh-like material.
−プを引張ることにより狭くなって、前記第1及び第2
のバッキング間に配する袋を圧迫する特許請求の範囲第
(1)項又は第(2)記載の管内面塗布方法。(3) The distance between the first and second backings is 10 mm.
- the first and second
A method for coating an inner surface of a tube according to claim 1 or 2, wherein the bag placed between the backings is compressed.
、牽引ロープとは一体のロープブであって、該一体のロ
ープが牽引ロープ側の第2のバッキングの中心を挿通し
てなる特許請求の範囲第(3)項記載の管内面塗布方法
。(4) A patent claim in which the rope connecting the first and second backings and the towing rope are an integrated rope, and the integrated rope is inserted through the center of the second backing on the towing rope side. The method for coating the inner surface of a pipe according to item (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22523882A JPS59115770A (en) | 1982-12-22 | 1982-12-22 | Coating method of inside surface of pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22523882A JPS59115770A (en) | 1982-12-22 | 1982-12-22 | Coating method of inside surface of pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59115770A true JPS59115770A (en) | 1984-07-04 |
JPS6210708B2 JPS6210708B2 (en) | 1987-03-07 |
Family
ID=16826153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22523882A Granted JPS59115770A (en) | 1982-12-22 | 1982-12-22 | Coating method of inside surface of pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59115770A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61111183A (en) * | 1984-11-07 | 1986-05-29 | Osaka Bosui Kensetsushiya:Kk | Repairing method of underground pipeline |
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 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0195707A (en) * | 1987-10-07 | 1989-04-13 | Suzutec Co Ltd | Apparatus for cleaning after soil covering |
-
1982
- 1982-12-22 JP JP22523882A patent/JPS59115770A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61111183A (en) * | 1984-11-07 | 1986-05-29 | Osaka Bosui Kensetsushiya:Kk | Repairing method of underground pipeline |
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 |
Also Published As
Publication number | Publication date |
---|---|
JPS6210708B2 (en) | 1987-03-07 |
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