JPH0459952B2 - - Google Patents
Info
- Publication number
- JPH0459952B2 JPH0459952B2 JP22315784A JP22315784A JPH0459952B2 JP H0459952 B2 JPH0459952 B2 JP H0459952B2 JP 22315784 A JP22315784 A JP 22315784A JP 22315784 A JP22315784 A JP 22315784A JP H0459952 B2 JPH0459952 B2 JP H0459952B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- lining material
- lining
- heated
- resin
- 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
- 239000000463 material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、パイプ内に液状ライニング材及びラ
イニング用物体を入れ、その物体を前記パイプ内
で移動させ、前記ライニング材を前記物体により
押し流しかつ前記パイプの内面に塗布する方法に
関する。Detailed Description of the Invention [Industrial Field of Application] The present invention involves placing a liquid lining material and a lining object in a pipe, moving the object within the pipe, and displacing the lining material by the object. The present invention relates to a method of coating the inner surface of the pipe.
〔従来技術〕
従来、エポキシ系樹脂等の二液混合により硬化
する樹脂をライニング材として用いて、上記方法
を実施していた（例えば特開昭57年54795号公
報）。[Prior Art] Conventionally, the above method has been carried out using a resin such as an epoxy resin that is cured by mixing two components as a lining material (for example, Japanese Patent Laid-Open Publication No. 54795 of 1982).
しかし、パイプ内面に塗布したライニング材が
十分な強度に硬化するに、数時間もの長時間を必
要とし、ライニング材の流動によつて、パイプの
大きな孔を閉じられなかつたり、ライニング層の
厚さが不均一になつたりし、また、作業能率が悪
く、より一層の改良の余地があつた。
However, it takes several hours for the lining material applied to the inner surface of the pipe to harden to sufficient strength. In addition, the work efficiency was poor, and there was room for further improvement.
本発明の目的は、パイプ内面に塗布した後のラ
イニング材の硬化を極めて短時間で行わせられる
ようにする点にある。 An object of the present invention is to enable the lining material to be cured in an extremely short time after being applied to the inner surface of the pipe.
本発明の特徴手段は、常温で硬化すると共に加
熱で軟化する樹脂を液状ライニング材として使用
し、ライニング用物体によりパイプ内面に塗布し
た加熱樹脂をパイプの冷却作用で硬化させること
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 that a resin that hardens at room temperature and softens when heated is used as a liquid lining material, and that the heated resin applied to the inner surface of the pipe by a lining object is hardened by the cooling action of the pipe. The effects are as follows.
つまり、例えばポリエチレンやポリ塩化ビニル
等のライニング材を加熱軟化してパイプ内面に塗
布すると、パイプの冷却作用によつてライニング
材が数分以内というように極めて短時間で硬化
し、迅速にライニング処理が完了する。
In other words, when a lining material such as polyethylene or polyvinyl chloride is heated and softened and applied to the inner surface of a pipe, the lining material hardens within a few minutes due to the cooling effect of the pipe, resulting in rapid lining processing. is completed.
その結果、パイプに大きな孔があつても、ライ
ニング材の流動によつて閉塞不良を生じるといつ
た不都合な事態を伴うこと無く、確実にライニン
グ材で孔を閉じさせることができ、また、ライニ
ング材の流動によつてライニング層の厚さが不揃
いになるといつたトラブルを確実に防止して、均
一で良好なライニング処理を行え、さらには、ラ
イニング作業を迅速に完了でき、全体として、良
好なライニング処理を信頼性の高い状態でかつ作
業能率良好に行えるようになつた。
As a result, even if there is a large hole in the pipe, the hole can be reliably closed with the lining material without causing inconvenient situations such as failure to close due to the flow of the lining material. It is possible to reliably prevent troubles such as uneven thickness of the lining layer due to material flow, and to perform uniform and good lining processing.Furthermore, the lining work can be completed quickly, resulting in a good overall result. Lining processing can now be performed in a highly reliable state and with good work efficiency.
次に、実施例を示す。 Next, examples will be shown.
第１図に示すように、ライニング処理対象とす
るパイプ１内に、その一端側から適量の液状ライ
ニング材２、及び、パイプ内径とライニング厚さ
に見合つた適当な直径のライニング用物体３を入
れる。ライニング材２は、常温で硬化すると共に
加熱で軟化する樹脂、例えばポリエチレンやポリ
塩化ビニル等を、適度の流動性を有するように予
め加熱したものである。 As shown in Fig. 1, an appropriate amount of liquid lining material 2 and a lining object 3 of an appropriate diameter commensurate with the inner diameter of the pipe and the thickness of the lining are put into the pipe 1 to be lined from one end thereof. . The lining material 2 is made of a resin that hardens at room temperature and softens when heated, such as polyethylene or polyvinyl chloride, and is preheated to have appropriate fluidity.
第２図に示すように、パイプ１に蓋５を取付け
て、送風機６からパイプ１内に加圧ガスを供給
し、物体３をパイプ１内で圧送すると共に、物体
３によりライニング材２を押し流しかつパイプ内
面に塗布し、塗布したライニング材２をパイプ１
の冷却作用で硬化させて、ライニング層７をパイ
プ内面全体に形成する。 As shown in FIG. 2, a lid 5 is attached to the pipe 1, pressurized gas is supplied from the blower 6 into the pipe 1, and the object 3 is fed under pressure within the pipe 1, and the lining material 2 is swept away by the object 3. and apply the applied lining material 2 to the inner surface of the pipe.
The lining layer 7 is formed on the entire inner surface of the pipe by hardening it by the cooling action of the pipe.
第３図に示すように、パイプ１の全長にわたる
ライニング処理が完了した状態で、パイプ１から
余剰のライニング材２及び物体３を回収すると共
に、送風機６を停止させた後、蓋５をパイプ１か
ら取外す。 As shown in FIG. 3, after the lining process over the entire length of the pipe 1 has been completed, excess lining material 2 and objects 3 are collected from the pipe 1, and after the blower 6 is stopped, the lid 5 is placed on the pipe 1. Remove from.
次に別の実施例を説明する。 Next, another embodiment will be described.
ライニング材２は、常温で硬化すると共に加熱
で軟化する樹脂であればいかなるものでもよい。 The lining material 2 may be any resin as long as it hardens at room temperature and softens when heated.
物体３の形状は球形状や砲弾状等、その他適当
に変形でき、また、物体３の材質や構造等も適宜
変更でき、さらに、複数個の物体３を連結して、
ライニング材２を物体３間に入れてもよく、そし
て、第４図に示すように、ライニング材２に対す
る電熱式等の加熱装置８を物体３に連設して、ワ
イヤー等の牽引具９で加熱装置８及び物体３をパ
イプ１内で移動させるように構成したり、あるい
は、物体３自体に加熱装置８を内装させると、長
いパイプ１の処理の便利である。 The shape of the object 3 can be changed into a spherical shape, a cannonball shape, etc., and the material and structure of the object 3 can also be changed as appropriate.
The lining material 2 may be inserted between the objects 3, and as shown in FIG. It is convenient to process a long pipe 1 if the heating device 8 and the object 3 are configured to be moved within the pipe 1, or if the heating device 8 is built into the object 3 itself.
第４図に示すように、物体３で牽引されるホー
ス９の前端側からパイプ１内に、液体窒素や液体
空気等の低温液化ガスを気化して供給する装置１
０からの低温ガスを供給したり、その他適当な手
段で低温ガスをパイプ１内で牽引される物体３の
後方に供給したり、ライニング材２の塗布の前に
パイプ１内に供給したり、あるいは、それらを適
当に組合せて、ライニング材２の冷却硬化を一層
迅速に行わせると、より一層良好な処理ができ
る。 As shown in FIG. 4, a device 1 that vaporizes and supplies low-temperature liquefied gas such as liquid nitrogen or liquid air into the pipe 1 from the front end side of a hose 9 pulled by an object 3.
0 or by other suitable means to the rear of the object 3 towed in the pipe 1, or into the pipe 1 before the application of the lining material 2, Alternatively, if these are appropriately combined to allow the lining material 2 to cool and harden more quickly, even better processing can be achieved.
対象とするパイプ１は、都市ガス用、天然ガス
用、水道用等の既設導管が一般的であるが、新し
い管であつてもよい。 The target pipe 1 is generally an existing conduit for city gas, natural gas, water supply, etc., but may be a new pipe.
第１図ないし第３図は、本発明方法の手順を例
示する概念図である。第４図は、本発明方法の別
の実施例を示す概念図である。
１……パイプ、２……ライニング材、３……物
体、８……加熱装置。
1 to 3 are conceptual diagrams illustrating the procedure of the method of the present invention. FIG. 4 is a conceptual diagram showing another embodiment of the method of the present invention. 1... Pipe, 2... Lining material, 3... Object, 8... Heating device.
Claims (1)
ング用物体３を入れ、その物体３を前記パイプ１
内で移動させ、前記ライニング材２を前記物体３
により押し流しかつ前記パイプ１の内面に塗布す
る方法であつて、前記ライニング材２として常温
で硬化すると共に加熱で軟化する樹脂を使用し、
前記パイプ１の冷却作用で塗布した加熱樹脂を硬
化させるパイプ内面用ライニング方法。 ２ 前記物体３として、ライニング材用加熱装置
８を有するものを使用する特許請求の範囲第１項
に記載の方法。 ３ 前記ライニング材２の塗布の前に、前記パイ
プ１をその内部に供給した低温ガスで冷却する特
許請求の範囲第１項又は第２項に記載の方法。[Claims] 1. Put a liquid lining material 2 and a lining object 3 into the pipe 1, and put the object 3 into the pipe 1.
the lining material 2 is moved within the object 3.
This method uses a resin that hardens at room temperature and softens when heated as the lining material 2, and
A method for lining the inner surface of a pipe, in which the heated resin applied is cured by the cooling effect of the pipe 1. 2. The method according to claim 1, wherein the object 3 includes a heating device 8 for lining material. 3. The method according to claim 1 or 2, wherein before applying the lining material 2, the pipe 1 is cooled with a low-temperature gas supplied inside the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22315784A JPS61101273A (en) | 1984-10-24 | 1984-10-24 | Method for lining inner surface of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22315784A JPS61101273A (en) | 1984-10-24 | 1984-10-24 | Method for lining inner surface of pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61101273A JPS61101273A (en) | 1986-05-20 |
| JPH0459952B2 true JPH0459952B2 (en) | 1992-09-24 |
Family
ID=16793683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22315784A Granted JPS61101273A (en) | 1984-10-24 | 1984-10-24 | Method for lining inner surface of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61101273A (en) |
-
1984
- 1984-10-24 JP JP22315784A patent/JPS61101273A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61101273A (en) | 1986-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IE910154A1 (en) | Improvements relating to the lining of pipelines or passageways | |
| AU1458383A (en) | Pipe lining means | |
| CA1336663C (en) | Process for sealing damaged pipes | |
| JPH0459952B2 (en) | ||
| GB2176263A (en) | Method of protection of the inner surface of pipeline against corrosion | |
| JPH0459954B2 (en) | ||
| JP4014306B2 (en) | Pipe lining method | |
| JPS62167027A (en) | Lining of flanged tube | |
| JPS6015391B2 (en) | How to apply a layer of polyurethane foam to a cut or ground surface of polyurethane foam | |
| JPS6187028A (en) | Repairing for flaw of polyethylene-covered steel member to be driven under water | |
| JPS608046A (en) | Method and apparatus for covering and hardening fiber- reinforced synthetic resin bar | |
| JP2741729B2 (en) | Painting method | |
| JP2967934B2 (en) | Pipe liner and liner method | |
| JPS58178081A (en) | Method of lining construction of existing water service pipe | |
| JPH06285980A (en) | Method for manufacturing inner lined metal tube | |
| JPS61245875A (en) | Method for lining inner surface of piping | |
| JP2712276B2 (en) | Manufacturing method of lining tube | |
| GB2249602A (en) | Repairing pipelines and passageways | |
| JPH0544881A (en) | Joining method for pipe | |
| JPS5983882A (en) | Method of coating inner surface of pipe | |
| JPH0461703B2 (en) | ||
| JPS6133977A (en) | Method of rubber lining construction of tank made of steel plate | |
| JPS5879571A (en) | Repairing method for inside surface of pipe | |
| JPH0237229B2 (en) | KISETSUKANNONAIMENHOSHUHOHO | |
| RU2141602C1 (en) | Method of applying coat on inner surface of pipe line |