JP3231472B2 - Piping rehabilitation method - Google Patents
Piping rehabilitation methodInfo
- Publication number
- JP3231472B2 JP3231472B2 JP10541093A JP10541093A JP3231472B2 JP 3231472 B2 JP3231472 B2 JP 3231472B2 JP 10541093 A JP10541093 A JP 10541093A JP 10541093 A JP10541093 A JP 10541093A JP 3231472 B2 JP3231472 B2 JP 3231472B2
- Authority
- JP
- Japan
- Prior art keywords
- lining
- plug
- pipe
- pressure
- rehabilitating
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、既設の配管内のさび、
スケール等を配管のまま清掃しライニングする配管の更
生方法に関する。更に詳しくは、ライニング皮膜に発生
するピンホールや、気泡の巻き込みによるライニング皮
膜の欠陥防止及び被処理配管の漏洩部の補修を可能とす
る配管の更生方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to rust in existing pipes,
The present invention relates to a pipe rehabilitation method for cleaning and lining a scale or the like as it is. More specifically, the present invention relates to a method for rehabilitating a pipe that can prevent pinholes generated in the lining film and defects of the lining film due to entrainment of air bubbles and repair a leaked portion of a pipe to be processed.
【０００２】[0002]
【従来の技術】既設の各種配管を配管のまま内部清掃を
行い、ライニングを施すなど配管の更生を行う技術とし
ては、管内走行プラグを圧縮空気又は圧送水などによっ
て管内を通過させる技術、薬品洗浄技術、サンドブラス
ト技術などが知られており、また、管内のさび、こぶ等
のスケールを除去した後、ライニングを施すことも実施
されており、プラグライニング法、気流法、ホースライ
ニング法などが知られている。2. Description of the Related Art Techniques for rehabilitating pipes, such as performing internal cleaning of existing pipes while keeping the pipes intact and lining the pipes, include passing a plug inside the pipe through compressed air or pressure water, chemical cleaning. Technology, sand blasting technology, etc. are also known.In addition, lining is performed after removing scales such as rust and bumps in the pipe, and plug lining method, air flow method, hose lining method, etc. are known. ing.
【０００３】[0003]
【発明が解決しようとする課題】従来の管内走行プラグ
を用いて既設管内部の清掃を行う技術は、大量の洗浄水
を用いるものである。洗浄水を用いる場合大量の水を使
用する必要があり汚水の散乱、汚水中の固形物の回収処
理、清掃後の配管の乾燥、作業の後始末等に膨大な時間
と労力を要する。更に、従来の方法では一方向からの加
圧によるライニング方法であるため、ライニング時に配
管の漏洩部を補修することが不可能であるばかりか、空
気巻き込みに起因するライニング皮膜に発生した気泡
は、自然消泡に任せていたため、硬化後皮膜表面に凹凸
ができたり、配管と皮膜との接着不良による皮膜剥離の
原因となっていた。The conventional technique for cleaning the inside of an existing pipe using a running plug in a pipe uses a large amount of washing water. When using washing water, it is necessary to use a large amount of water, and it takes enormous time and labor to scatter sewage, collect solids in sewage, dry piping after cleaning, and clean up work. Furthermore, since the conventional method is a lining method by applying pressure from one direction, it is not only impossible to repair the leaking part of the pipe at the time of lining, but also the bubbles generated in the lining film due to air entrapment, Since it was left to natural defoaming, unevenness was formed on the film surface after curing, and the film was peeled off due to poor adhesion between the pipe and the film.
【０００４】本発明はこのような従来の管内清掃技術に
改善を加え、清掃からライニングに至る一連の配管更生
作業において、水を多量に用いることなく、合理的に能
率的に施工する方法を提供することを目的とする。[0004] The present invention is an improvement on such conventional pipe cleaning technology, and provides a method for performing a streamlined and efficient construction without using a large amount of water in a series of pipe rehabilitation work from cleaning to lining. The purpose is to do.
【０００５】[0005]
【課題を解決するための手段】本発明は直径１００〜８
００ｍｍの既設配管を更生するに当り、次の工程を特徴
とする配管の更生方法である。 （ａ）軟質の管内走行プラグを圧送して配管内の現状を
判定する。 （ｂ）この判定に基いて、洗浄用プラグを選定する。 （ｃ）選定されたプラグを管内を往復圧送してクリーニ
ングを行ってスケールを排出する。 （ｄ）次いでプライマー塗布する。 （ｅ）樹脂を注入し、ライニングプラグを圧送して樹脂
皮膜を形成させ、次いで該ライニングプラグの進行方向
前方を減圧することにより、皮膜に発生している気泡或
はピンホールの除去、又は配管の漏洩部を補修しながら
該ライニングプラグを逆送することにより往復ライニン
グを行う。この場合、ライニングプラグの進行方向後方
より圧送流体を供給し、進行方向前方を減圧して該ライ
ニングプラグを移動させると好適であり、また、ライニ
ングプラグの進行方向前方を減圧することにより、被処
理配管の漏洩部を該ライニング材で被覆することができ
る。According to the present invention, there is provided a method for manufacturing a semiconductor device having a diameter of 100 to 8 mm.
In rehabilitating an existing pipe of 00 mm, the following step is a method of rehabilitating a pipe. (A) A soft in-pipe traveling plug is pressure-fed to determine the current state in the pipe. (B) Based on this determination, a cleaning plug is selected. (C) The selected plug is reciprocated in the pipe to perform cleaning and discharge the scale. (D) Next, a primer is applied. (E) Injecting resin, pumping the lining plug to form a resin film, and then reducing the pressure in the forward direction of the lining plug to remove air bubbles or pinholes generated in the film or pipe. The reciprocating lining is performed by reversing the lining plug while repairing the leaked part of the lining. In this case, it is preferable to supply a pressure-feeding fluid from the rear of the lining plug in the traveling direction, and to reduce the pressure in the front of the lining plug to move the lining plug. The leaking part of the pipe can be covered with the lining material.
【０００６】また本発明は上述のライニングプラグ（第
１のライニングプラグ）を挿入側より他端に移動させた
後、更に別の第２のライニングプラグを挿入し、第１の
ライニングプラグと第２のライニングプラグとの間に塗
布材を介在させることを特徴とする配管の更生方法を提
供する。このとき、第１と第２のライニングプラグを移
動させる際、第１のライニングプラグの進行方向前方を
減圧し、第２のライニングプラグの進行方向後方より圧
送流体を供給すると好ましく、さらに第１と第２のライ
ニングプラグを移動させる際、第１のライニングプラグ
の進行方向前方を減圧するとともに、第１と第２のライ
ニングプラグ間の塗布剤により、ライニング被膜に発生
したピンホールや気泡を除去し、且つ被処理配管の漏洩
部を該ライニング材で被覆することを特徴とする。Further, according to the present invention, after the above-mentioned lining plug (first lining plug) is moved from the insertion side to the other end, another second lining plug is inserted, and the first lining plug and the second lining plug are inserted. The present invention provides a method for rehabilitating a pipe, characterized in that an application material is interposed between the pipe and a lining plug. At this time, when moving the first and second lining plugs, it is preferable to reduce the pressure in the front of the first lining plug in the traveling direction and to supply the pumping fluid from the rear in the traveling direction of the second lining plug. When moving the second lining plug, the pressure in the forward direction of the first lining plug is reduced, and the pinholes and bubbles generated in the lining film are removed by the coating agent between the first and second lining plugs. In addition, the leakage part of the pipe to be treated is covered with the lining material.
【０００７】また上記各方法において、ライニングプラ
グの母体部に凹凸を設けたプラグを用いると塗膜厚の精
度が向上する。In each of the above-mentioned methods, the use of a plug provided with irregularities on the base of the lining plug improves the accuracy of the coating thickness.
【０００８】[0008]
【作用】本発明は基本的には管内走行プラグを圧送して
管内清掃及びライニングを行う工法であるが、その過程
において洗浄水を使用しない。従って、汚水の散乱等を
生じない。また、乾燥工程を必要としないから、ライニ
ング処理を清掃に引き続いて行うことができ、短期間に
高能率作業ができる。The present invention is basically a method of cleaning and lining the inside of a pipe by feeding a running plug in the pipe, but does not use washing water in the process. Therefore, scattering of sewage does not occur. In addition, since a drying step is not required, the lining process can be performed subsequent to the cleaning, and a highly efficient operation can be performed in a short time.
【０００９】[0009]
【実施例】本発明の工程図を図１に示した。またその主
要段階を図２〜４に示した。以下図に従って説明する。 （ａ）準備 配管中のバルブ、異径管、オリフィス等を取外し、管内
走行プラグが容易に通過するように改造する。図２に示
すように、配管１の両端にそれぞれランチャー２、キャ
ッチャー３を接続し、圧縮空気管４、空気圧縮機５、ダ
スト回収管１１、ダスト回収装置１２等を取付ける。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a process chart of the present invention. The main steps are shown in FIGS. This will be described below with reference to the drawings. (A) Preparation Remove the valves, different-diameter pipes, orifices, etc. in the pipes and modify them so that the running plugs in the pipes can easily pass through. As shown in FIG. 2, a launcher 2 and a catcher 3 are connected to both ends of a pipe 1, respectively, and a compressed air pipe 4, an air compressor 5, a dust collecting pipe 11, a dust collecting device 12, and the like are attached.
【００１０】（ｂ）ソフトプラグによる調査 ソフトプラグを管内に挿入し、これを圧送して他端から
取出す。取出したソフトプラグの疵、付着物等から次工
程の適用プラグの選定を行う。既設配管路を洗浄する場
合に、管内の付着スケールや錆瘤の度合いを確認せず
に、研磨プラグによるクリーニング作業を行うと、管路
の途中でプラグが閉塞する危険性がある。このようなト
ラブルを未然に防ぐために、管内の状態を確認する必要
がある。(B) Investigation using a soft plug A soft plug is inserted into a pipe, and is fed under pressure and taken out from the other end. Select the plug to be applied in the next process based on the flaws, deposits, etc. of the removed soft plug. When cleaning existing pipes, if the cleaning operation with a polishing plug is performed without checking the degree of adhesion scale and rust bumps in the pipes, there is a risk that the plugs will be blocked in the middle of the pipes. In order to prevent such troubles beforehand, it is necessary to check the condition in the pipe.
【００１１】ソフトプラグはスケールや錆瘤面を通過す
ると、付着厚さ分だけ摩耗するような軟質のプラグを用
いる。ソフトプラグを圧送してその損傷状態と摩耗状態
により管路の状態を次のように判断する。 ｉ）ソフトプラグの先端部から大きな亀裂がある：管路
に鋭利な凸部がある。 ｉｉ）ソフトプラグの胴体部が摩耗している：スケール
や錆瘤が付着している。（プラグの減少口径が管路の推
定内径） ｉｉｉ）ソフトプラグの原型がない状態：管路の錆瘤が
１０ｍｍ以上か又は異物等がある。As the soft plug, a soft plug that is worn by the thickness of the adhesive when passing through the scale or rust bump surface is used. The soft plug is pressure-fed and the state of the pipeline is determined as follows based on the damaged state and the worn state. i) There is a large crack from the tip of the soft plug: there is a sharp protrusion in the conduit. ii) The body of the soft plug is worn: scale or rust is attached. (The reduced diameter of the plug is the estimated inner diameter of the pipeline.) Iii) Without the original soft plug: A rust bump of 10 mm or more in the pipeline or foreign matter is present.
【００１２】ｉｖ）ソフトプラグが詰まった状態：管路
に計器、弁類、異物がある。 （ｃ）研磨 図２に示す装置構成の下に、選定されたプラグを用いて
配管１内の研磨を行う。例えば、強固なスケールに対し
てボルト頭つきプラグ、中程度の固さのスケールに対し
てワイヤブラシつきプラグ等を用いて、錆、油、水垢な
どのスケールを除去する。配管１の内部の状況に応じプ
ラグの往復回数を決め、十分に研磨する。例えば数往復
でよい場合もあり、２０往復以上に及ぶこともある。Iv) Clogged soft plug: There are instruments, valves and foreign matter in the pipeline. (C) Polishing Under the apparatus configuration shown in FIG. 2, the inside of the pipe 1 is polished using the selected plug. For example, a scale with a bolt head is used for a strong scale, and a plug with a wire brush is used for a medium-scale scale to remove scale such as rust, oil, and scale. The number of reciprocations of the plug is determined according to the state of the inside of the pipe 1, and sufficient polishing is performed. For example, a few reciprocations may be sufficient, and 20 or more reciprocations may occur.
【００１３】プラグの圧送速度は、最小値０．５〜１．
５ｍ／秒である。プラグの圧送に必要な背圧は、４〜６
インチ管では４ｋｇ／ｃｍ2 以上、８〜１２インチ管で
は３ｋｇ／ｃｍ2 以上である。 （ｄ）スケール排出 スケール排出用専用プラグを用いて管壁に残っているス
ケールをジェット流により排出し清掃する。数往復繰り
返すことによりスケールを完全に排出することができ
る。この工程では、大量の水を必要としないので、場合
により水を用いて水洗してもよい。The pumping speed of the plug is a minimum value of 0.5-1.
5 m / sec. The back pressure required for pumping the plug is 4-6
It is 4 kg / cm 2 or more for an inch tube and 3 kg / cm 2 or more for an 8 to 12 inch tube. (D) Scale discharge The scale remaining on the pipe wall is discharged by a jet stream and cleaned using a dedicated plug for scale discharge. The scale can be completely discharged by repeating several round trips. Since a large amount of water is not required in this step, washing may be performed using water in some cases.
【００１４】（ｅ）ケレン仕上 ブラシ付プラグ等により一定の基準まで仕上げる。２０
往復以上繰返す。 （ｆ）スケール２次排出 旋回プラグを用いて水洗を１回行う。旋回プラグはヘリ
カル状に捩れた溝を有するプラグである。水洗後この旋
回プラグを圧縮空気で２回以上一方向へ圧送してスケー
ル及び残水を完全に排出する。水洗を行わない場合は旋
回プラグの空気圧送の回数を増やすことにより必要な条
件を満たすことができる。(E) Finishing with Keren Finishing to a certain standard with a plug with a brush or the like. 20
Repeat for more than one round trip. (F) Secondary discharge The water is washed once using a swirl plug. The revolving plug is a plug having a helically twisted groove. After washing with water, the revolving plug is pressure-fed two or more times with compressed air in one direction to completely discharge the scale and residual water. When the washing is not performed, the necessary condition can be satisfied by increasing the number of times of pneumatic feeding of the swirling plug.
【００１５】（ｇ）予備乾燥 空気エジェクター等を用いて２時間以上の乾燥を行う。 （ｈ）プライマー塗布 ２個のプラグの間にプライマーをサンドイッチ状に入れ
て圧送する。この作業は、後のライニング剤の接着性を
向上させるために、重要な作業である。管内に完全に塗
布させるためと管内の残された必要以上のプライマーを
旋回プラグによって管壁に確実に塗布させ残プライマー
を排出して完了とする。(G) Predrying Drying is performed for 2 hours or more using an air ejector or the like. (H) Application of primer A primer is sandwiched between two plugs and pumped. This operation is important in order to improve the adhesion of the lining agent later. In order to completely coat the inside of the tube, more than necessary primer remaining in the tube is surely applied to the tube wall by the swirling plug, and the remaining primer is discharged to complete.
【００１６】（ｉ）乾燥 ６時間以上空気エジエクタ等を用いて乾燥する。送風機
等で、管路内を強制乾燥させ、出口側の乾燥状態を確認
した後に、吸水性のあるプラグを用いて、管路内の乾燥
状態を確認する。 （ｊ）ライニング 図３に示すようにライニング剤２０を配管１内に注入
し、圧縮機５から圧縮空気管４を経て圧縮空気を送る。
次に図４に示すようにランチャー２ａを取付け、ライニ
ングプラグを乾燥空気にて圧送する。この圧送によって
均一なライニング塗膜を管内壁に連続的に形成すること
ができる。漏洩部６があるとき、圧送により吹き抜けて
も、次の減圧工程で塞ぐことができる。キャッチャー３
ａにはライニング剤回収ホース２２を取付け、ライニン
グ剤回収タンク２３に塗料を回収する。ライニング後、
膜厚検査を行う。(I) Drying Dry for 6 hours or more using an air ejector or the like. After the inside of the pipeline is forcibly dried with a blower or the like and the dried state on the outlet side is confirmed, the dried state in the pipeline is confirmed using a water-absorbing plug. (J) Lining As shown in FIG. 3, a lining agent 20 is injected into the pipe 1, and compressed air is sent from the compressor 5 through the compressed air pipe 4.
Next, as shown in FIG. 4, the launcher 2a is mounted, and the lining plug is pressure-fed with dry air. By this pressure feeding, a uniform lining coating film can be continuously formed on the inner wall of the tube. If there is a leaking part 6, it can be closed in the next decompression step even if it blows out by pressure feeding. Catcher 3
A lining agent collection hose 22 is attached to a, and paint is collected in a lining agent collection tank 23. After lining,
Perform a film thickness inspection.
【００１７】プラグ工法による管路の内面ライニングの
工事は、樹脂塗料の混合及び撹拌、塗料の注入、ライニ
ング塗膜の形成、ライニング塗膜の硬化の一連の作業工
程からなり、後の管路内面の耐久性を左右する最も重要
な作業である。従って厚膜（平均値１．０ｍｍ）でピン
ホールの少ない連続塗膜を、管路内面に形成させるため
に、ライニングの基礎技術と施工技術が要求される。The construction of the inner lining of the pipeline by the plug method consists of a series of work steps of mixing and stirring the resin paint, injecting the paint, forming the lining coating, and curing the lining coating. This is the most important task that affects the durability of a car. Therefore, in order to form a continuous coating film having a thin film (average value: 1.0 mm) and a small number of pinholes on the inner surface of the pipeline, a basic lining technology and a construction technology are required.
【００１８】管路の内面を、ライニングするライニング
剤は、２液混合タイプのエポキシ樹脂塗料を用いる。主
剤と硬化剤を適正比率で混合した後に、塗料撹拌機で充
分撹拌を行って使用する。管路の入口側に取付けたラン
チャーから、充分に撹拌された樹脂塗料をライニングす
るために、必要な量を注入した後に、ライニングプラグ
２４をランチャー２ａに挿入して、圧送する。ライニン
グプラグがキャッチャー内に到達したのを確認後、樹脂
をキャッチャー側より追加注入し、新たなプラグ２５を
キャッチャー側より挿入し両プラグの間に樹脂（ライニ
ング有り）をサンドイッチにして、図５に示すようにキ
ャッチャー側に圧送用ホース４’を接続し、プラグ２４
の挿入側に取付けている真空発生装置２１（エアージェ
ット方式）により進行側を減圧し皮膜に発生している気
泡等を除去しながらプラグ２４を吸引すると共に、キャ
ッチャー３ａ側より圧縮空気を注入しプラグ２５を同時
に入口側（ランチャー側）へ逆送する。ライニング後膜
厚検査を行い所定の膜厚が保護されたか否かを検査し、
膜厚が確保されていない場合は、再度樹脂の注入を行い
上記の操作を繰り返す。As the lining agent for lining the inner surface of the conduit, a two-component mixed type epoxy resin paint is used. After mixing the main agent and the curing agent at an appropriate ratio, the mixture is sufficiently stirred with a paint stirrer before use. After the necessary amount is injected from the launcher attached to the inlet side of the pipeline to line the sufficiently stirred resin paint, the lining plug 24 is inserted into the launcher 2a and fed under pressure. After confirming that the lining plug has reached the inside of the catcher, additional resin is injected from the catcher side, a new plug 25 is inserted from the catcher side, and the resin (with lining) is sandwiched between both plugs. As shown, the hose 4 'for pressure feed is connected to the catcher side,
A vacuum is generated by a vacuum generator 21 (air jet system) attached to the insertion side, and the plug 24 is sucked while removing air bubbles and the like generated in the film while compressing air is injected from the catcher 3a side. The plug 25 is simultaneously fed back to the entrance side (launcher side). After lining, a film thickness inspection is performed to check whether the specified film thickness has been protected,
If the film thickness is not ensured, the resin is injected again and the above operation is repeated.
【００１９】（ｋ）養生 ライニング後２４時間以上自然硬化させる。 （ｌ）検査 ピンホール検査機又は内視による検査を行う。検査に合
格すればライニング完了となる。(K) Curing Natural curing is performed for at least 24 hours after lining. (L) Inspection Perform an inspection using a pinhole inspection machine or an endoscope. If the inspection passes, the lining is completed.
【００２０】（ｍ）復旧 バルブ、異形管その他の復旧を行う。(M) Restoration The restoration of valves, deformed pipes, etc. is performed.
【００２１】[0021]
【発明の効果】本発明工法では研磨用の洗浄水を用いな
いので、汚水の取り扱いや処理等が不要となり、作業環
境の保全、汚水処理設備の不使用、乾燥後始末などを必
要とせず、高能率、低コストで配管の更生が可能となっ
た。According to the method of the present invention, since no washing water for polishing is used, the handling and treatment of sewage is not required, and the working environment is not required, the sewage treatment equipment is not used, and the cleaning after drying is not required. The pipe can be rehabilitated with high efficiency and low cost.
【図１】本発明例の工程図である。FIG. 1 is a process chart of an example of the present invention.
【図２】研磨工程の説明図である。FIG. 2 is an explanatory diagram of a polishing step.
【図３】ライニング工程の説明図である。FIG. 3 is an explanatory diagram of a lining step.
【図４】ライニング工程の往路の説明図である。FIG. 4 is an explanatory diagram of a forward path of a lining step.
【図５】ライニング工程の復路の説明図である。FIG. 5 is an explanatory diagram of a return path in a lining step.
１ 配管 ２，２ａ ラン
チャー ３，３ａ キャッチャー ４ 圧縮空気管 ５ 圧縮機 ６ 漏洩部 １１ ダスト回収管 １２ ダスト回収
装置 ２０ ライニング剤 ２１ 真空発生装
置 ２２ 回収ホース ２３ 回収タンク ２４，２５ ライニングプラグDESCRIPTION OF SYMBOLS 1 Piping 2, 2a Launcher 3, 3a Catcher 4 Compressed air pipe 5 Compressor 6 Leakage part 11 Dust recovery pipe 12 Dust recovery device 20 Lining agent 21 Vacuum generator 22 Recovery hose 23 Recovery tank 24, 25 Lining plug
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小倉 一記 東京都杉並区浜田山４−12−19 (56)参考文献 特開 昭63−31578（ＪＰ，Ａ) 特開 昭62−1486（ＪＰ，Ａ) 特開 昭58−174273（ＪＰ，Ａ) 特開 平３−169（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B05D 7/22 B08B 9/053 F16L 55/16 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuki Ogura 4-12-19 Hamadayama, Suginami-ku, Tokyo (56) References JP-A-63-31578 (JP, A) JP-A-62-1486 (JP) JP-A-58-174273 (JP, A) JP-A-3-169 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B05D 7/22 B08B 9/053 F16L 55/16
Claims (7)
生するに当り、軟質の管内走行プラグを圧送して配管内
の現状を判定し、該判定に基いて洗浄用プラグを選定
し、該選定されたプラグを管内を乾式で往復圧送してク
リーニングを行い、次いでプライマー塗布し、樹脂を注
入した後ライニングプラグを挿入し、該ライニングプラ
グを挿入側より他端に移動することによりライニング被
膜を形成させ、該ライニングプラグを他端より挿入側に
移動させる際、該ライニングプラグの進行方向前方を減
圧し、該被膜に発生したピンホールや気泡を除去しなが
ら往復ライニングを行うことを特徴とする配管の更生方
法。In rehabilitating an existing pipe having a diameter of 100 to 800 mm, a soft in-pipe running plug is pressure-fed to determine the current state of the pipe, and a cleaning plug is selected based on the determination. The plug is cleaned by reciprocating the inside of the tube by reciprocating pressure in a dry manner, then applying a primer, injecting a resin, inserting a lining plug, and moving the lining plug from the insertion side to the other end to form a lining film. When moving the lining plug from the other end to the insertion side, the pressure is reduced in the forward direction of the lining plug, and reciprocating lining is performed while removing pinholes and bubbles generated in the coating. Rehabilitation method.
送流体を供給し、進行方向前方を減圧して該ライニング
プラグを移動させることを特徴とする請求項１記載の配
管の更生方法。2. The method for rehabilitating a pipe according to claim 1, wherein a pressurized fluid is supplied from the rear of the lining plug in the traveling direction, and the lining plug is moved by reducing the pressure in the front of the lining plug.
することにより、被処理配管の漏洩部を該ライニング材
で被覆することを特徴とする請求項１又は２記載の配管
の更生方法。3. The method for rehabilitating a pipe according to claim 1, wherein the leaking portion of the pipe to be treated is covered with the lining material by reducing the pressure in the forward direction of the lining plug.
を挿入側より他端に移動させた後、更に第２のライニン
グプラグを挿入し、該第１のライニングプラグと第２の
ライニングプラグとの間に塗布材を介在させることを特
徴とする配管の更生方法。4. After the first lining plug according to claim 1 is moved from the insertion side to the other end, a second lining plug is further inserted, and the first lining plug and the second lining plug are connected to each other. A method for rehabilitating a pipe, characterized in that a coating material is interposed between the pipes.
せる際、該第１のライニングプラグの進行方向前方を減
圧し、第２のライニングプラグの進行方向後方より圧送
流体を供給することを特徴とする請求項４に記載の配管
の更生方法。5. When the first and second lining plugs are moved, the pressure is reduced in the front of the first lining plug in the traveling direction and the pumping fluid is supplied from the rear in the traveling direction of the second lining plug. The pipe rehabilitation method according to claim 4, wherein
せる際、該第１のライニングプラグの進行方向前方を減
圧するとともに、該第１と第２のライニングプラグ間の
塗布剤により、ライニング被膜に発生したピンホールや
気泡を除去し、且つ被処理配管の漏洩部を該ライニング
材で被覆することを特徴とする請求項４又は５記載の配
管の更生方法。6. When the first and second lining plugs are moved, the pressure in the forward direction of the first lining plug is reduced, and the lining coating is formed by a coating agent between the first and second lining plugs. 6. The method for rehabilitating a pipe according to claim 4, wherein pinholes and air bubbles generated in the pipe are removed, and a leakage portion of the pipe to be treated is covered with the lining material.
たプラグを用いることを特徴とする請求項１乃至請求項
６のいずれかに記載の配管の更生方法。7. The method for rehabilitating a pipe according to claim 1, wherein a plug having a base portion provided with irregularities is used for the lining plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10541093A JP3231472B2 (en) | 1992-06-29 | 1993-05-06 | Piping rehabilitation method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4-170875 | 1992-06-29 | ||
| JP17087592 | 1992-06-29 | ||
| JP10541093A JP3231472B2 (en) | 1992-06-29 | 1993-05-06 | Piping rehabilitation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06292860A JPH06292860A (en) | 1994-10-21 |
| JP3231472B2 true JP3231472B2 (en) | 2001-11-19 |
Family
ID=26445701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10541093A Expired - Lifetime JP3231472B2 (en) | 1992-06-29 | 1993-05-06 | Piping rehabilitation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3231472B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310580B1 (en) * | 2013-01-23 | 2013-09-23 | (주)경동엔지니어링 | Repair and reinforcement of large pipeline facilities including sewage culverts |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11245300A (en) * | 1998-02-27 | 1999-09-14 | Tokyo Gas Co Ltd | Method for repairing existing pipeline |
| JP2002233818A (en) * | 2001-02-06 | 2002-08-20 | Sadakuni Daiku | Method of repairing inside surface of pipe with pig |
| KR100455703B1 (en) * | 2002-01-11 | 2004-11-06 | 정송옥 | Polymer Impregnated Regeneration Method for Mortar Lining of Water Works Pipe |
| KR100494291B1 (en) * | 2002-04-01 | 2005-06-13 | 중앙산업 (주) | A rejuvenate method for superannuated pipe |
| KR100838602B1 (en) * | 2007-04-06 | 2008-06-16 | 인중종합건설(주) | A method of construction to pour concrete of scrapped water pipes for being replaced the water pipes become superannuated |
| JP6951042B2 (en) * | 2017-07-30 | 2021-10-20 | 株式会社サンフロイント | Oil pipe internal lining construction method |
| WO2018173320A1 (en) * | 2017-03-24 | 2018-09-27 | 株式会社サンフロイント | Internal lining installation method for oil pipe |
| JP7358027B2 (en) * | 2017-03-24 | 2023-10-10 | 株式会社サンフロイント | Oil piping internal lining construction method |
-
1993
- 1993-05-06 JP JP10541093A patent/JP3231472B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310580B1 (en) * | 2013-01-23 | 2013-09-23 | (주)경동엔지니어링 | Repair and reinforcement of large pipeline facilities including sewage culverts |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06292860A (en) | 1994-10-21 |
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