JPS63248478A - Method for drying branch pipeline after lining - Google Patents
Method for drying branch pipeline after liningInfo
- Publication number
- JPS63248478A JPS63248478A JP8203687A JP8203687A JPS63248478A JP S63248478 A JPS63248478 A JP S63248478A JP 8203687 A JP8203687 A JP 8203687A JP 8203687 A JP8203687 A JP 8203687A JP S63248478 A JPS63248478 A JP S63248478A
- Authority
- JP
- Japan
- Prior art keywords
- lining
- pipe
- air
- film
- ejector
- 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
- 238000001035 drying Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ガス管や水道管等の更生に利用されるもので
あり１．ライニング処理を施した後の管路内壁面の乾燥
工法の改良に関するものである０（従来の技術）
ガス管路や水道管路の更生工法として、管路内壁面をサ
ンドジェット流等によって研掃したあと、管路内ヘライ
ニング材を流通させ、内壁面にライニング皮膜を形成す
る工法が広〈実施されている（特公昭５８−２４１９５
号、特公昭６１−１４６号、特公昭５８−１３２２７号
）０
而して、従前の管路内壁面のライニング工法に於いては
、例えば第２図に示す如く分岐管路を施工する際には、
先ず各分岐管路の末端開口Ｂｏ＠Ｃ。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is used for the rehabilitation of gas pipes, water pipes, etc. 1. This relates to an improvement in the method of drying the inner wall surface of a pipe after lining treatment.0 (Conventional technology) As a rehabilitation method for gas pipes and water pipes, the inner wall surface of the pipe is polished by sand jet flow, etc. After that, a method of circulating lining material inside the pipe to form a lining film on the inner wall surface is widely practiced (Japanese Patent Publication No. 58-24195).
(Japanese Patent Publication No. 61-146, Japanese Patent Publication No. 58-13227) 0 Therefore, in the conventional method of lining the inner wall of the pipe, for example, when constructing a branch pipe as shown in Fig. 2, teeth,
First, the terminal opening Bo@C of each branch pipe.
”Ｄ６にバルブＶｂ、 Ｖｃ、 Ｖｄを介設してライニ
ング材回収タンクＴｂ、 Ｔｃ、 Ｔｄを接続し、次に
、バルブｖｂのみを開放してライニングマシーンＭから
ライニング材を送り込んで管路Ａ−Ｂ間をライニングし
、これが完了すれば、引き続きバルブＶｃのみを開放し
て管路Ａ−Ｃ間を、同様にバルブＶｄのみを開放して管
路Ａ−Ｄ間をライニングする。``Connect the lining material collection tanks Tb, Tc, and Td to D6 by interposing valves Vb, Vc, and Vd, and then open only the valve vb to feed the lining material from the lining machine M to the pipe A- After completing the lining between B and lining, open only the valve Vc and line between the pipes A and C, and similarly open only the valve Vd and line the pipes A and D.
また、この様にして所定の管路のライニングが終れば、
全てのバルブＶｂ、 Ｖｃ、 Ｖｄを開放すると共に、
入口端Ａ０からコンプレッサＥより乾燥用空気を各管路
へ供給し、管路内に滞留しているライニング材を各回収
タンクＴｂ、 Ｔｃ、 Ｔｄ内へ排出すると共に、管路
内壁面に形成したライニング皮膜を乾燥硬化させるよう
にしている。Also, once the lining of a given pipe is completed in this way,
Open all valves Vb, Vc, and Vd, and
Drying air was supplied from the inlet end A0 by the compressor E to each pipe, and the lining material staying in the pipe was discharged into each recovery tank Tb, Tc, Td, and was formed on the inner wall of the pipe. The lining film is dried and hardened.
しかし、従前の工法に於いては、ライニング施工のとき
と同じ方向に乾燥用空気を流し、これによって管路の先
端部（こ主として滞留するライニング材を管路外へ排出
するようにしているため、どうしても、管路の入口側の
ライニング皮膜が薄く且つ出口側のライニング皮膜が厚
くなり易く、皮膜厚さの均一化が図れないうえ、各末端
開口Ｂｙ。However, in the previous construction method, drying air was flowed in the same direction as when lining was installed, and the lining material that had accumulated at the tip of the pipe was discharged out of the pipe. However, the lining film on the inlet side of the pipe tends to be thin and the lining film on the outlet side tends to be thick, making it impossible to make the film thickness uniform.
Ｃｏ 、 Ｄｏにライニング材回収タンクを必要とし、
所要機材が増すという難点がある。A lining material recovery tank is required for Co and Do,
The problem is that the required equipment increases.
また、ライニング皮膜の乾燥には相当長時間に亘って空
気流を流さなければならないが、各管路末端開口から空
気流を排出することは、騒音や環境衛生の点からも多（
の問題を起生ずる。In addition, airflow must be allowed to flow for a considerable period of time to dry the lining film, but discharging the airflow from the end openings of each pipe is a problem in terms of noise and environmental hygiene.
This will cause problems.
（発明が解決しようとする問題点）
本発明は、従前の分岐管路のライニング工法に於ける上
述の如き問題、即ち、ピ）管路内の余剰ライニング材を
管路の末端側へ排出するため、管路の入口側と出口側の
皮膜厚の差が修正されずに、逆に膜厚差が増加すること
、（ロ）多数のライニング材回収タンクを必要とするう
え、騒音や環境衛生上の問題を生じ易いこと等の問題を
解決せんとするものであり、管路内壁面の皮膜厚さの修
正や所要機材の削減が図れると共に、ライニング皮膜を
効率よく乾燥できるようにしたライニング後の分岐管路
の乾燥工法を提供するものである。(Problems to be Solved by the Invention) The present invention solves the above-mentioned problems in the conventional branch pipe lining construction method, namely: (i) discharging excess lining material in the pipe to the end side of the pipe; As a result, the difference in film thickness between the inlet and outlet sides of the pipeline is not corrected, but instead increases, and (b) a large number of lining material collection tanks are required, and noise and environmental hygiene are caused. This is intended to solve problems such as the tendency to cause the above problems, and it is possible to modify the coating thickness on the inner wall surface of the pipe and reduce the required equipment, as well as to make it possible to dry the lining coating efficiently. The present invention provides a drying method for branch pipes.
（問題点を解決するための手段）
本発明は、管路内ヘライニングオを流通せしめて管路内
壁面にライニング皮膜を形成した後、管路の何れかの開
口部に空気エゼクタ−を接続し、該空気エゼクタ−へ作
動用空気を供給して管路内の空気を吸引することにより
、前記ライニング皮膜を乾燥することを発明の基本構成
とするものである。(Means for Solving the Problems) The present invention provides a method of forming a lining film on the inner wall surface of the pipe by allowing air to flow through the pipe, and then connecting an air ejector to any opening of the pipe. The basic structure of the invention is to dry the lining film by supplying working air to the air ejector and sucking the air inside the pipe.
（作用）
空気エゼクタ−へ作動用空気を供給すると共に、管路の
各末端開口部を開放することにより、管路内の空気が吸
引され、管路内にライニング材の流動方向とは逆向きの
空気流が形成される。これにより、管路の末端部に主と
して滞留する余剰ライニング材が逆送されて管路内壁面
に再付着し、ライニング皮膜の修正（増厚及び皮膜外表
面の平滑化）が丘なわれると共に、皮膜の乾燥硬化が促
進される。(Function) By supplying working air to the air ejector and opening each end opening of the pipe, the air inside the pipe is sucked, and the flow direction of the lining material in the pipe is opposite to the flow direction. air flow is formed. As a result, the surplus lining material that mainly accumulates at the end of the pipe is transported back and reattached to the inner wall surface of the pipe, and the modification of the lining film (increasing the thickness and smoothing the outer surface of the film) is smoothed out. Drying and curing of the film is accelerated.
又、管路内からの排ガスは、空気エゼクタ−の排気側に
接続した浄化装置に於いてライニング材粒子等を回収し
たあと、大気内へ放出される。Further, the exhaust gas from inside the pipe is discharged into the atmosphere after collecting lining material particles and the like in a purification device connected to the exhaust side of the air ejector.
（実施例） 以下、第１図に基づいて本発明の一実施例を説明する。(Example) Hereinafter, one embodiment of the present invention will be described based on FIG.
第１図に於いて、１は空気エゼクタ−１２はコンプレッ
サー、３は浄化装置、４ａ〜４ｅは分岐管路を構成する
管路である。In FIG. 1, 1 is an air ejector 12 is a compressor, 3 is a purifier, and 4a to 4e are pipes forming branch pipes.
各分岐管路４ａ〜４ｅは、入口側聞口Ａｏより管内ヘラ
イニング材を供給し、該ライニング材を圧縮空気流によ
って直接若しくはピグを介して前方へ流動させることに
より、管路内壁面にライニング皮膜５が形成された直後
である。即ち、管路内壁面に形成されたライニング皮膜
５は未硬化の状態にあり、且つ管路の末端部や立上げ分
岐管４ｂの基端部等には、余剰ライニング材６が若干滞
留している状態となっている。Each of the branch pipes 4a to 4e is provided with a lining material inside the pipe from the inlet port Ao, and the lining material is flowed forward by a compressed air flow directly or through a pig, thereby lining the inner wall surface of the pipe. This is immediately after the coating 5 is formed. That is, the lining film 5 formed on the inner wall surface of the pipe is in an uncured state, and some surplus lining material 6 remains at the end of the pipe, the proximal end of the riser branch pipe 4b, etc. It is in a state of being.
分岐管路４ｅのライニング皮膜の形成が完了すれば、分
岐管路の先端開口部Ａｏへ空気エゼクタ−１を接続する
と共に、コンプレッサー２及び浄化装＠３を夫々連続す
る。When the formation of the lining film on the branch pipe 4e is completed, the air ejector 1 is connected to the tip opening Ao of the branch pipe, and the compressor 2 and purifier @3 are connected to each other.
次に、コンプレッサー２から作動用空気７を空気エゼク
タ−１の空気供給口１ａへ供給し、空気エゼクタ−１を
作動させると共に、各管路の末端開口に設けたバルブ８
，９，１０を開放する。Next, the operating air 7 is supplied from the compressor 2 to the air supply port 1a of the air ejector 1 to operate the air ejector 1, and at the same time, the valve 8 provided at the end opening of each pipe line
,9,10 are opened.
エゼクタ−１の作動により、各管路内の空気は入ロ開ロ
Ａｏ側に向って吸引され、これにより管路内に流動状態
で滞留する余剰ライニング材６が入口側Ａｏへ向って流
動し、先きに形成されたライニング皮膜５上に順次付着
すると共に、ライニング後膜の乾燥が行なわれる。By the operation of the ejector 1, the air in each pipe line is sucked toward the inlet opening side Ao, and as a result, the excess lining material 6 that remains in the pipe line in a fluid state flows toward the inlet side Ao. , are sequentially deposited on the previously formed lining film 5, and the film is dried after lining.
尚、前記バルブ８，９．１０は、同時に全てを開放して
もよいし、或いは乾燥の度合に応じて個々に閉鎖又は開
度調整を汚なうことも可能である。The valves 8, 9, and 10 may all be opened at the same time, or may be closed or adjusted individually depending on the degree of dryness.
空気エゼクタ−１により吸引された空気流１１は、浄化
装置３内で含有するライニング材粒子等を除去されたあ
と、大気中へ放散される。The air flow 11 sucked by the air ejector 1 is discharged into the atmosphere after removing lining material particles and the like contained therein in the purifier 3.
前記実施例に於いては、管路の入口側聞口Ａｏに空気エ
ゼクタ−１を接続するようにしているが、該エゼクタ−
１を何れかの末端開口側に接続してもよいことは勿論で
ある。In the above embodiment, the air ejector 1 is connected to the inlet port Ao of the conduit.
1 may of course be connected to either end opening side.
（発明の効果）
本発明に於いては、空気エゼクタ−を管路の何れかの開
口部に接続し、これに作動用の圧縮空気を供給して管路
内の空気を吸引する構成としているため、ライニング工
程に於いて管路内に残留した余剰ライニング材がライニ
ングの際とは逆向きの方向に流動されることになり、ラ
イニング皮膜の整形が行なえると共に、従前の入口開口
部Ａｏから空気流を供給する場合に比較して、管路の入
口側と出口側の皮膜厚の差が減少する。(Effects of the Invention) In the present invention, an air ejector is connected to any opening of the pipe, and compressed air for operation is supplied to the air ejector to suck air in the pipe. Therefore, during the lining process, the excess lining material remaining in the pipe is flowed in the opposite direction to that during lining, and the lining film can be shaped and removed from the previous inlet opening Ao. Compared to the case where air flow is supplied, the difference in coating thickness between the inlet and outlet sides of the conduit is reduced.
また、排気の浄化装置も一基だけでよく、機材費等の削
減が可能となる。In addition, only one exhaust gas purification device is required, making it possible to reduce equipment costs.
本発明は上述の通り、優れた実用的効用を奏するもので
ある。As mentioned above, the present invention has excellent practical effects.
第１図は、本発明によるライニング後の分岐管路の乾燥
処理の実施説明図である。
第２図はミ従前の分岐管路のライニング及び管路の乾燥
工法の説明図である。
１ 空気エゼクタ−
２コンプレッサー
３ 浄化装置
４ 分岐管路
７ 作動用空気
特許出願人 株式会社 日本技術開発センター日本
軽金属株式会社FIG. 1 is an explanatory diagram of the drying process of a branch pipe after lining according to the present invention. FIG. 2 is an explanatory diagram of a conventional method for lining a branch pipe and drying the pipe. 1 Air ejector 2 Compressor 3 Purifier 4 Branch pipe 7 Working air patent applicant Japan Technology Development Center Nippon Light Metal Co., Ltd.
Claims (2)
にライニング皮膜を形成した後、管路の何れかの開口部
に空気エゼクターを接続し、該空気エゼクターへ作動用
空気を供給して管路内の空気を吸引することにより、前
記ライニング皮膜を乾燥するようにしたライニング後の
分岐管路の乾燥方法。(1) After flowing the lining material into the pipe to form a lining film on the inner wall of the pipe, connect an air ejector to any opening in the pipe and supply operating air to the air ejector. A method for drying a branch pipe line after lining the lining film by suctioning air in the pipe line.
ーを接続する特許請求の範囲第１項に記載のライニング
後の分岐管路の乾燥方法。(2) The method for drying a branch pipe after lining according to claim 1, wherein an air ejector is connected to the opening to which the lining material is supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62082036A JPH0657341B2 (en) | 1987-04-01 | 1987-04-01 | Drying method of branch line after lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62082036A JPH0657341B2 (en) | 1987-04-01 | 1987-04-01 | Drying method of branch line after lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63248478A true JPS63248478A (en) | 1988-10-14 |
| JPH0657341B2 JPH0657341B2 (en) | 1994-08-03 |
Family
ID=13763295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62082036A Expired - Lifetime JPH0657341B2 (en) | 1987-04-01 | 1987-04-01 | Drying method of branch line after lining |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0657341B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207973A (en) * | 1982-05-31 | 1983-12-03 | Hakko Co Ltd | Execution of repairing inner surface of existing pipe |
| JPS61263678A (en) * | 1985-05-18 | 1986-11-21 | Ohbayashigumi Ltd | Method for lining inner surface of pipe by air circulation |
-
1987
- 1987-04-01 JP JP62082036A patent/JPH0657341B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207973A (en) * | 1982-05-31 | 1983-12-03 | Hakko Co Ltd | Execution of repairing inner surface of existing pipe |
| JPS61263678A (en) * | 1985-05-18 | 1986-11-21 | Ohbayashigumi Ltd | Method for lining inner surface of pipe by air circulation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657341B2 (en) | 1994-08-03 |
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