JPH0657341B2 - Drying method of branch line after lining - Google Patents
Drying method of branch line after liningInfo
- Publication number
- JPH0657341B2 JPH0657341B2 JP62082036A JP8203687A JPH0657341B2 JP H0657341 B2 JPH0657341 B2 JP H0657341B2 JP 62082036 A JP62082036 A JP 62082036A JP 8203687 A JP8203687 A JP 8203687A JP H0657341 B2 JPH0657341 B2 JP H0657341B2
- Authority
- JP
- Japan
- Prior art keywords
- pipeline
- lining
- air
- lining material
- branch
- 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 - Lifetime
Links
Landscapes
- Drying Of Solid Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
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、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。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is used for rehabilitation of gas pipes, water pipes, etc., and is an improvement of a method for drying the inner wall surface of a pipe after lining treatment. It is about.
（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
ンドジエツト流等によつて研掃したあと、管路内へライ
ニング材を流通させ、内壁面にライニング皮膜を形成す
る工法が広く実施されている（特公昭５８−２４１９５
号、特公昭６１−１４６号、特公昭５８−１３２２７
号）。(Prior art) As a method of rehabilitating gas pipelines and water pipelines, the inner wall surface of the pipeline is ground and cleaned by sand jet flow, etc., and then a lining material is circulated into the pipeline to form a lining film on the inner wall surface. This construction method is widely practiced (Japanese Patent Publication No. 58-24195).
No. 61-146, Sho-58-13227
issue).
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図に示す分岐管路を施工する際には、先
ず各分岐管路の末端開口B0・C0・D0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。Thus, in the conventional lining construction method for the inner wall surface of the pipeline, for example, when constructing the branch pipeline shown in FIG. 2, first, the end openings B 0 · C 0 · D 0 of each branch pipeline are first constructed. The lining material recovery tanks Tb, Tc, Td are connected to the lining material recovery tanks Tb, Tc, Td through the valves Vb, Vc, Vd, and then only the valve Vb is opened to feed the lining material from the lining machine M to connect the pipes A-B When this is completed, only the valve Vc is continuously opened to line between the pipes A and C, and similarly, only the valve Vd is opened to line between 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
コンプレツサ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。In addition, if the lining of the predetermined pipeline is completed in this way,
All the valves Vb, Vc, Vd are opened, and drying air is supplied from the inlet end A 0 to the respective pipelines from the compressor E, so that the lining material accumulated in the pipelines is collected in the respective recovery tanks Tb, Tc, Td
The lining film formed on the inner wall surface of the pipe is dried and cured while being discharged into the inside.
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、これによつて管路の先
端部に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B0,C0,D0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。However, in the conventional construction method, the drying air is made to flow in the same direction as that at the time of lining construction, whereby the lining material mainly staying at the tip of the pipeline is discharged to the outside of the pipeline. Therefore, inevitably, easy entrance side of the lining film of the conduit is thin and lining film at the outlet side becomes thick, upon which can not be ensured uniformity of coating thickness, each end opening B 0, C 0, D 0 in the lining material The problem is that a recovery tank is required and 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つて空
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く
の問題を起生する。In addition, it takes a long time to dry the lining film, but exhausting the airflow from the end openings of each conduit causes many problems in terms of noise and environmental hygiene. To live.
（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、(イ)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 has the above-mentioned problem in the conventional lining method for branch pipes, that is, (a) discharges excess lining material in the pipe to the end side of the pipe. Therefore, the difference in the film thickness between the inlet side and the outlet side of the pipeline is not corrected and the film thickness difference increases, and (b) a large number of lining material recovery tanks are required, and noise and environment It is intended to solve problems such as hygiene problems, and it is possible to correct the film thickness on the inner wall of the pipeline and reduce the required equipment, and at the same time, the lining that allows the lining film to be dried efficiently. It is intended to provide a method for drying the subsequent branch pipeline.
（問題点を解決するための手段） 本発明は、管路内へライニング材を流通せしめて管路内
壁面にライニング皮膜を形成た後、管路のライニング材
を供給した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ことを発
明の基本構成とするものである。(Means for Solving Problems) According to the present invention, after a lining material is circulated into a pipeline to form a lining film on an inner wall surface of the pipeline, an air ejector is provided at an opening of the pipeline where the lining material is supplied. The basic constitution of the invention is to dry the lining film by connecting and supplying working air to the air ejector to suck the air in the pipeline.
（作用） 空気エゼクター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）が行なわれると共に、皮膜の乾燥硬化が促
進される。(Operation) By supplying the working air to the air ejector and opening each end opening of the pipeline, the air in the pipeline is sucked, and the flow direction of the lining material in the pipeline is opposite. An air stream is formed. As a result, the excess lining material that mainly stays at the end of the pipeline is sent back and reattached to the inner wall surface of the pipeline, and the lining coating is corrected (thickening and smoothing of the outer surface of the coating) and The dry curing of the is accelerated.
又、管路内からの排ガスは、空気エゼクターの排気側に
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 the inside of the pipe is discharged into the atmosphere after recovering the lining material particles and the like in a purifying 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。(Embodiment) An embodiment of the present invention will be described below with reference to FIG.
第１図に於いて、１は空気エゼクター、２はコンプレツ
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, reference numeral 1 is an air ejector, 2 is a compressor, 3 is a purifying device, and 4a to 4e are conduits forming branch conduits.
各分岐管路４ａ〜４ｅは、入口側開口A0より管内へライ
ニング材を供給し、該ライニング材を圧縮空気流によつ
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
している状態となつている。Each of the branch pipe lines 4a to 4e supplies a lining material into the pipe through the inlet side opening A 0 , and causes the lining material to flow forward by a compressed air flow directly or via a pig, thereby forming an inner wall surface of the pipe line. Immediately after the lining film 5 is formed on. That is, the lining film 5 formed on the inner wall surface of the pipe
Is in an uncured state, and the surplus lining material 6 is slightly retained at the end of the conduit, the base end of the rising branch pipe 4b, and the like.
次に、コンプレツサー２から作動用気７を空気エゼクタ
ー１の空気供給口１ａへ供給し、空気エゼクター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 working 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 valves 8 provided at the end openings of the respective pipelines are provided.
Open 9 and 10.
エゼクター１の作動により、各管路内の空気は入口開口
A0側に向つて吸引され、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A0へ向つて流動
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、ライニング皮膜の乾燥が行なわれる。Due to the operation of the ejector 1, the air in each pipeline is opened at the inlet.
The surplus lining material 6 which is sucked toward the A 0 side and stays in the pipe line in a fluidized state flows toward the inlet side A 0 , and sequentially adheres to the lining film 5 formed earlier. The lining film is dried.
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
調整を行なうことも可能である。All of the valves 8, 9 and 10 may be opened at the same time, or they may be individually closed or the opening degree may be adjusted according to the degree of drying.
空気エゼクター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 stream 11 sucked by the air ejector 1 is diffused into the atmosphere after removing the lining material particles contained in the purifying device 3.
（発明の効果） 本発明に於いては、空気エゼクターを管路のライニング
材を供給した開口部に接続し、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A0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 the opening of the pipeline, to which the lining material is supplied, and compressed air for operation is supplied to the opening to suck the air in the pipeline. As a result, the excess lining material remaining in the pipeline during the lining process will flow in the direction opposite to that during lining, and the lining film can be shaped and the conventional inlet opening A Compared with the case where the air flow is supplied from 0, the difference in the film thickness between the inlet side and the outlet side of the pipeline 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, which makes it possible to reduce equipment costs.
本発明は上述の通り、優れた実用的効果を奏するもので
ある。The present invention has excellent practical effects as described above.
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、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……空気エゼクター ２……コンプレツサー ３……浄化装置 ４……分岐管路 ５……作動用空気FIG. 1 is an explanatory diagram of an embodiment of a drying process of a branched pipe line after lining according to the present invention. FIG. 2 is an explanatory view of a conventional lining of branch pipes and a method of drying pipes. 1 ... Air ejector 2 ... Complexer 3 ... Purification device 4 ... Branch pipe 5 ... Operating air
───────────────────────────────────────────────────── フロントページの続き (72)発明者 新納 清憲 大阪府大阪市東区高麗橋３丁目７番１号 株式会社日本技術開発センター内 (72)発明者 新庄 希男 大阪府大阪市東区高麗橋３丁目７番１号 株式会社日本技術開発センター内 (56)参考文献 特開 昭61−263678（ＪＰ，Ａ) 特開 昭58−207973（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyonori Shinna 3-7-1 Koraibashi, Higashi-ku, Osaka City, Osaka Prefecture Japan Technology Development Center Co., Ltd. (72) Ino, Norio Shinjo 3-7 Koraibashi, Higashi-ku, Osaka No. 1 in Japan Technology Development Center Co., Ltd. (56) Reference JP-A-61-263678 (JP, A) JP-A-58-207973 (JP, A)
Claims (1)
ら管路内へライニング材と空気の混合流体を供給し、前
記混合流体の流通により管路内壁面にライニング皮膜を
形成した後、前記ライニング材を供給した管路の一側端
部に空気エゼクターを接続し、前記ライニング材と混合
する空気の供給源から当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と共に、各分岐管路
の末端開口に設けたバルブの開度を調整して各分岐管路
内への空気の吸引量を変えることにより、管路内壁面に
形成した前記ライニング皮膜の厚さを修正しつつこれを
乾燥するようにしたことを特徴とするライニング後の分
岐管路の乾燥方法。1. A lining film is formed on an inner wall surface of a pipeline by supplying a mixed fluid of a lining material and air into the pipeline from one end of the pipeline composed of a plurality of branch pipelines. After that, an air ejector is connected to one side end portion of the pipeline to which the lining material is supplied, and the working air is supplied to the air ejector from a supply source of air mixed with the lining material to supply air in the pipeline. And the amount of air suctioned into each branch pipeline by adjusting the opening of the valve provided at the end opening of each branch pipeline, thereby removing the lining film formed on the inner wall surface of the pipeline. A method for drying a branched pipeline after lining, characterized in that the thickness is corrected while being dried.
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 JPS63248478A (en) | 1988-10-14 |
| JPH0657341B2 true 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) |
Family Cites Families (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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63248478A (en) | 1988-10-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
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