JPH04187262A - Repairing device for lining of internal surface of pipe - Google Patents
Repairing device for lining of internal surface of pipeInfo
- Publication number
- JPH04187262A JPH04187262A JP31337190A JP31337190A JPH04187262A JP H04187262 A JPH04187262 A JP H04187262A JP 31337190 A JP31337190 A JP 31337190A JP 31337190 A JP31337190 A JP 31337190A JP H04187262 A JPH04187262 A JP H04187262A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- pipe
- lining
- discharge hose
- orifice
- 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
- 239000011347 resin Substances 0.000 claims abstract description 86
- 229920005989 resin Polymers 0.000 claims abstract description 86
- 230000008439 repair process Effects 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
・本発明は、既設配′７′１の管内面に樹脂のライニン
グ塗膜を形成するように補修を施す管内面のライニング
補修装置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] - The present invention relates to a lining repair device for the inner surface of a pipe that repairs the inner surface of an existing pipe 7'1 by forming a resin lining coating film thereon. It is.
上述のような既設配管の管内面ライニング補修り法とし
て、補修対象の施工管内に、その一端開口部より流動性
を有する樹脂を液状のまま管内を閉塞するように注入Ｅ
７、該注入樹脂をその前後に生起させた加圧流体の圧力
差により団流状をなして管内を一定速度で流動進ｊ１さ
せ、この進行行程で管内壁に付着する樹脂により流動速
度に応じた所要膜厚のう、イニング塗膜を管内面に形成
するようにしたものが、例えば特開昭５７−１０５２７
０号公報、特開昭６１．−２６８３８６号公報、特開昭
６３−６５ （＞ ８−ｒ−３号公報等によって提案さ
れている。As a method for repairing the inner lining of existing pipes as described above, a fluid resin is injected into the pipe to be repaired through the opening at one end in a liquid state so as to close the inside of the pipe.
7. The injected resin forms a collective flow due to the pressure difference between the pressurized fluid before and after it, and flows through the pipe at a constant speed, and during this progress, the resin that adheres to the inner wall of the pipe causes the resin to flow according to the flow speed. For example, JP-A-57-10527 discloses a method in which an inning coating film with a required thickness is formed on the inner surface of the pipe.
Publication No. 0, JP-A-61. It has been proposed in Japanese Patent Application Laid-Open No. 63-65 (>8-r-3), etc.
〔発明が解決【７ようとする課題〕
上述の先行技術によるライニング施工においては、注入
樹脂をその前後に生起させた加圧流体の圧力差により団
流状をなして管内を、流動進行させる関係から、−度に
流動進行させる充填樹脂量に制約があり、この制約から
捕修対象の施工管の管長が長い場合は、樹脂の注入を複
数回に分けて樹脂の流動によるライニング塗膜の形成を
順次延長するように補修が行われる。そして管内に注入
された樹脂団流は所定距離まで流動されると吹き抜けを
起し、これを繰り返すことにより所要長さの既設配管に
Ｒ，ｌするライニング補修が終端部まで達成される。[Problem to be solved by the invention [7] In the lining construction according to the above-mentioned prior art, the injected resin flows in the pipe in a convergent flow due to the pressure difference between the pressurized fluid generated before and after the injection resin. Therefore, there is a restriction on the amount of filled resin that can be flowed at a certain time, and due to this restriction, if the length of the construction pipe to be repaired is long, the resin injection may be divided into multiple times to form a lining coating film by the flow of the resin. Repairs will be carried out to gradually extend the period. When the resin flow injected into the pipe flows to a predetermined distance, it blows through, and by repeating this process, the lining repair of the existing pipe of the required length is completed up to the terminal end.
この場合、補修の最終ｊ＋程において樹脂団流か吹き抜
けを起すと、その管内圧力の急激な低下により塗膜形成
直後の施］二管内に急激な圧力変動が生じることより、
その圧力変動の影響が管内面に塗布された未硬化のライ
ニング塗膜に作用して膜厚が不均一になる等の悪影響が
生起する問題点があった。In this case, if resin condensation or blow-through occurs during the final stage of repair, the pressure inside the pipe will drop rapidly, causing rapid pressure fluctuations within the pipe immediately after the coating film is formed.
There is a problem in that the influence of the pressure fluctuation acts on the uncured lining coating film applied to the inner surface of the tube, causing adverse effects such as uneven coating thickness.
このような問題点の解決手段として、補修施り菅の終端
開口部にバルブを設け、樹脂団流が補修行程の終端部に
到達するまではそのバルブを開いて通常の樹脂の吹き抜
けを起させ、樹脂団流が補修行程の終端部に至るとバル
ブを閉じて吹き抜けを防止する方法が考えられる。この
ような方法による場合、バルブの開閉操作を作業者がし
なければならず、通常、補鋒対象の施−Ｔ′管はその始
端側の作業開始位置と終端側の作業終了位置とが離れた
場所に位置することより作業連絡がとり難いことより、
作業者の人為的にミスにより開閉操作が適切に行われな
い問題点が派生する。As a solution to this problem, a valve is installed at the end opening of the repair pipe, and the valve is opened until the resin condensate reaches the end of the repair process to allow normal resin to blow through. One possible method is to close the valve when the resin clump reaches the end of the repair process to prevent blow-through. When using this method, the operator must open and close the valve, and normally the work start position on the starting end of the T' pipe to be reinforced is far from the work end position on the terminal end. Due to the fact that it is difficult to communicate with the staff due to the location,
The problem arises that the opening/closing operation is not performed properly due to human error by the worker.
本発明は、−１−述【、た間：＋’ｊＪ点を課題として
提案されたもので、特別な操作をすることなく最終行程
での樹脂団流の吹き抜けを防止できるようにした管内面
のライニング補修装置を提供することを目的とする。The present invention was proposed with the problem of -1-mentioned point [, tama: +'j The purpose is to provide a lining repair device for.
〔課ｊＩ′ｆｉを解決するための手段〕この目的を達成
するため、本発明は、補修施工管に対して、その一端開
口部より流動性を有する樹脂を液状のまま機内を閉塞す
るように注入する手段と、該注入樹脂をその前後に生起
させた加圧流体の圧力差により聞流状をなして機内を一
定速度で流動進行させる手段とを備えたライニング補修
装置において、
」二記補修施ｒ、 ’ｒＴの終端開口部に、内部を透視
できる透明の排出ホースを接続させ、該排出ホースには
その先端間「１部に、上記圧力差の最大設定圧に対し樹
脂の通過抵抗が大きい口径を有するオリフ、ｆスを設け
て、最終行程で補修終端部に到達する残留樹脂の吹き抜
けを防１１゛シでなることを特徴とする。[Means for solving the problem jI'fi] In order to achieve this object, the present invention provides a method for sealing the interior of the machine in a liquid state with a fluid resin from the opening at one end of the repaired pipe. In a lining repair device equipped with a means for injecting the resin and a means for causing the injected resin to flow at a constant speed inside the machine in a flow pattern due to a pressure difference between pressurized fluids generated before and after the injected resin, A transparent discharge hose that allows the interior to be seen through is connected to the terminal opening of the discharge hose, and the discharge hose has a passage resistance between the ends of the discharge hose against the maximum set pressure of the above pressure difference. It is characterized by providing an orifice and an f-s with a large diameter to prevent the residual resin from blowing through reaching the repair end in the final process.
〔１′１ 川〕
このような構成では、樹脂団流の進行方向前側の管内は
オリフィスを介して外部と連通ずることより、施工管の
〒１゛内を樹脂団流が流動進行する行程では通常の吹き
抜けが繰返され、その吹き抜けが起る際には流動する樹
脂量が少なくなって加圧流体の圧力差が低圧に減衰され
ていることより管内圧力の変動は低く、僅かな残圧かオ
リフィスを通過して施工管の機内は大気圧となる。[1'1 river] In this configuration, the inside of the pipe on the front side in the direction of flow of the resin clump communicates with the outside through the orifice, so that during the process in which the resin clump flows within 〒1゛ of the construction pipe, Normal blow-through is repeated, and when blow-by occurs, the amount of flowing resin is reduced and the pressure difference in the pressurized fluid is attenuated to a low pressure, so the fluctuation in the pressure inside the pipe is low, and there is only a slight residual pressure. After passing through the orifice, the interior of the construction pipe becomes atmospheric pressure.
そして樹脂団流が、施工管の終端部に到達する最終行程
では、その終端部に接続された透明のｖ１出ホース内に
樹脂団流が流入し、これにより樹脂団流が終端部に到達
［またことを確認でき、この排出ホース内に流入された
樹脂団流は、その先端のオリフィスにより樹脂の流出が
受は止められて残留するから、樹脂の吹き抜けが防止さ
れる。In the final step where the resin clump reaches the terminal end of the construction pipe, the resin clump flows into the transparent V1 outlet hose connected to the terminal end, and as a result, the resin clump reaches the terminal end [ It can also be confirmed that the flow of resin flowing into the discharge hose is prevented from flowing out by the orifice at its tip and remains, thereby preventing the resin from blowing through.
この結果、補修の最終行程では、残留する多量の樹脂団
流の吹き抜けが起らないから、その吹き抜りに起因する
１′ｉ内川力の急激）Ａ１丁カ変動か起らず、その圧力
変動に起因するライニング塗膜の膜厚形成に悪影響が作
用しなくなる。As a result, in the final process of repair, the large amount of residual resin flow does not blow through, so the sudden change in the 1'i Uchikawa force caused by the blow-through does not occur, and the pressure There is no longer any adverse effect on the thickness formation of the lining coating film caused by fluctuations.
以下、図面を参照して本発明の一実施例を説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は、本発明によるライニング施工装置の１例を概
略的に示すもので、符号１は補修対象の施工管（既設配
管）である。そして図示の実施例の場合、その施工管１
は、道路−トに布設された各種導管類の共同マンポール
Ａ内において、その共同マンホールＡ内に開口された一
端開口部よりビルの地下室Ｂ内に向けて分岐配管された
ガス管路を対象としている。FIG. 1 schematically shows an example of a lining construction apparatus according to the present invention, and reference numeral 1 indicates a construction pipe (existing pipe) to be repaired. In the case of the illustrated embodiment, the construction pipe 1
This applies to gas pipes that are branched into the basement B of the building from the opening at one end of the common manhole A in the common manpole A of various conduits installed on the road. It is said that
−１−記施工管１の共同マンホールＡ内に開口された一
端開口部には、これにランチャ−２が接続され、またビ
ル側の地丁室Ｂ内に開口された他方の開口部にはレシー
バ３が接続される。-1- A launcher 2 is connected to one end of the construction pipe 1 opened in the common manhole A, and the other end opened in the ground floor room B on the building side. Receiver 3 is connected.
上記ランチャ−２には、電磁開閉弁５を介して樹脂注入
器４が接続されている。この樹脂注入器４から流動性を
白°するライニング樹脂Ｃ力（ｉｔｌ状のまま所要量、
ランチャ−２内を介して施工管１の管内に導入され、そ
の管内を閉塞充満するように導入される。ここにライニ
ング樹脂Ｃは、主剤と硬化剤を調合した常温２液硬化型
の樹脂でチクソトロピー特性を有する樹脂が使用される
。A resin injector 4 is connected to the launcher 2 via an electromagnetic on-off valve 5. From this resin injector 4, force the lining resin C to whiten the fluidity (required amount while it is in an itl state,
It is introduced into the construction pipe 1 through the launcher 2, and is introduced so as to occlude and fill the pipe. Here, the lining resin C is a two-component curing resin at room temperature, which is a mixture of a main resin and a curing agent, and is a resin having thixotropic properties.
また上記ランチャ−２には、これに流量制御装置７を介
して小型コンプレッサ６が接続されてあり、このコンプ
レッサ６からの加圧流体が、流量制御装置７により流は
規制されてランチャ−２内から施工管ｌ内に送り込まれ
、これにより施工管１の管内に導入されたライニング樹
脂Ｃの前後に加圧流体の圧力差が生起して、その圧力差
によりライニング樹脂Ｃが、聞流状をなして管内を流動
進行するようにしである。Further, a small compressor 6 is connected to the launcher 2 via a flow rate control device 7, and the pressurized fluid from the compressor 6 is regulated in flow within the launcher 2 by the flow rate control device 7. This causes a pressure difference in the pressurized fluid before and after the lining resin C introduced into the construction pipe 1, and this pressure difference causes the lining resin C to flow in a non-current state. This allows the fluid to flow through the pipe.
なお上記コンプレッサ６からの加圧流体は流量制御装置
７と連動する電磁切換弁８．ガバナ９を介して前記樹脂
注入器４内にも導入され、樹脂注入器４内に設けた加圧
摺動板１０を押してライニング樹脂Ｃの供給がなされる
ようにしである。The pressurized fluid from the compressor 6 is supplied to the electromagnetic switching valve 8 which is linked to the flow rate control device 7. The lining resin C is also introduced into the resin injector 4 via the governor 9, and is supplied by pressing a pressure sliding plate 10 provided in the resin injector 4.
また前記した流量制御装置７は、コンプレッサＢからの
圧送空気を清浄化するフィルタ１１と、圧送空気の流量
を制御する絞り弁１２を備えた流量制御部１３と、圧送
空気の供給、遮断を制御する開閉弁１４とを有する。ま
たその送風系路には、圧力計１５と、上記開閉弁１４．
レリーフ弁１８．絞り弁１２等を制御する流量コン
トローラ１Ｂとを備えている。The flow rate control device 7 described above includes a filter 11 that cleans the compressed air from the compressor B, a flow rate control unit 13 that includes a throttle valve 12 that controls the flow rate of the compressed air, and a flow rate control unit 13 that controls supply and cutoff of the compressed air. It has an on-off valve 14. Further, in the air blowing system path, there is a pressure gauge 15 and the above-mentioned on-off valve 14.
Relief valve 18. It includes a flow controller 1B that controls the throttle valve 12 and the like.
そしてこの流量コントローラ１６は、後述する樹脂Ｃの
管内流動速度等の信号をアンテナ１７により受信すると
共に、圧力計１５による空気圧の検知に基いて絞り弁１
２．レリーフ弁１ｇ、開閉弁１４を制御するものである
。The flow rate controller 16 receives signals such as the flow rate of resin C in the pipe, which will be described later, through an antenna 17, and also controls the throttle valve 1 based on the air pressure detected by the pressure gauge 15.
2. It controls the relief valve 1g and the on-off valve 14.
一方、施工管１の他方の開口部に接続されたレシーバ３
には、これには遮断弁１９．圧力計２０．流計；；ｉ２
１等が接続され、この圧力、；Ｉ２０．流量；；Ｉ２１
によってライニング樹脂Ｃの流動進行につれて変化する
排出側の管内圧力、および、管内からの排出空気量が検
知されて、これらの検知により管内におけるライニング
樹脂Ｃの流動速度が検知されてこの検知信号が、発信器
２２．アンテナ２３を介して前記始端側のアンテナ１７
に送信されて前述の流量制御装置７による制御が行なわ
れるようになっている。On the other hand, a receiver 3 connected to the other opening of the construction pipe 1
This includes a shutoff valve 19. Pressure gauge 20. Flowmeter;;i2
1 etc. are connected, and this pressure; I20. Flow rate;;I21
The pressure inside the discharge side pipe, which changes as the flow of the lining resin C progresses, and the amount of air discharged from the pipe are detected, and by these detections, the flow velocity of the lining resin C inside the pipe is detected, and this detection signal is Transmitter 22. The antenna 17 on the starting end side via the antenna 23
The flow control device 7 described above controls the flow rate.
上述の制御により、施」１管ｌの管内を流動進行するラ
イニング樹脂Ｃの聞流は、その流動進行による塗膜形成
により樹脂量が減少すると前記加圧流体の圧力差が減衰
するよう制御されてライニング樹脂Ｃの管内における流
動速度が常に一定速度となるよう制御される。そして管
内を流動進行するライニング樹脂Ｃの樹脂団流は、所要
の進行位置まで流動すると吹き抜けを起し、１回の樹脂
団流の吹き抜けがあると上述の樹脂の導入ならびに流動
進行を所要回数、繰り返すことにより施工管１に対する
ライニング施］二が終端部まで達成されるようにしてい
る。Through the above-mentioned control, the flow of the lining resin C flowing through the inside of one pipe is controlled so that when the amount of resin decreases due to the formation of a coating film due to the progress of the flow, the pressure difference of the pressurized fluid attenuates. The flow rate of the lining resin C in the pipe is controlled to always be constant. When the resin bundle of lining resin C flowing through the pipe flows to a required advancing position, blow-through occurs, and once the resin bundle flows through once, the above-mentioned resin introduction and flow progress are repeated the required number of times. By repeating this process, the lining of the pipe 1 is completed up to the terminal end.
本発明においては、上記施工管１の補修終端側における
開口部（レシーバ３の開口端）に、内部を透視できる透
明の排出ホース２７が着脱可能に接続されてあり、この
排出ホース２７には、その先端開口部にオリフィス２８
を備えた栓体２９が装着されている。上記オリフィス２
８は、ポース２７内に流出されるライニング樹脂Ｃが、
その樹脂粘度と口径との関係から前記圧力差の最大設定
圧に対し樹脂Ｃの通過抵抗が大きい関係を有する口径に
設定されている。In the present invention, a transparent discharge hose 27 through which the interior can be seen is removably connected to the opening at the repair end side of the construction pipe 1 (opening end of the receiver 3). There is an orifice 28 at its tip opening.
A plug body 29 is attached. Orifice 2 above
8, the lining resin C flowing into the port 27 is
From the relationship between the resin viscosity and the diameter, the diameter is set such that the passage resistance of the resin C is large relative to the maximum set pressure of the pressure difference.
このような排出ホース２７をレシーバ３の開口端に接続
しておくと、ライニング樹脂Ｃの進行方向前側の管内は
オリフィス２Ｂを介して外部と連通ずることより、施工
管１の管内をライニング樹脂Ｃの樹脂団流が流動進１テ
する行程では上述のような通常の吹き抜けが繰返され、
その吹き抜けが起る際には流動する樹脂ばか少なくなっ
て加圧流体の圧力差が低圧に減衰されていることより管
内圧力の変動は低く、作かな残圧がオリフィス２８を通
過して施工管１の管内は大気圧となる。When such a discharge hose 27 is connected to the open end of the receiver 3, the inside of the pipe on the front side in the traveling direction of the lining resin C is communicated with the outside via the orifice 2B, so that the inside of the construction pipe 1 is connected to the lining resin C. In the process where the resin mass advances, the normal blow-through as described above is repeated,
When this blow-through occurs, the amount of resin flowing is reduced and the pressure difference in the pressurized fluid is attenuated to a low pressure, so the fluctuation in the pressure inside the pipe is low, and a small residual pressure passes through the orifice 28 and the pipe is being constructed. The inside of pipe No. 1 is at atmospheric pressure.
そしてライニング樹脂Ｃの樹脂団流が施工１’１−１、
〇−
の終端側に到達する最終行程では、その終端部に接続さ
れた透明の排出ホース２７内に樹脂団流が流入すること
で終端部にライニング樹脂Ｃの樹脂団流が到達したこと
を確認できる。Then, the resin condensate flow of lining resin C was carried out 1'1-1.
In the final process to reach the terminal end of 〇-, it was confirmed that the resin clump of lining resin C had reached the terminal end by flowing into the transparent discharge hose 27 connected to the terminal end. can.
この際、排出ホース２７内に流入するライニング樹脂Ｃ
の樹脂団流は、その先端部のオリフィス２８により流出
が阻山され、ホース２７内に受け１１″められて残留す
ることより、その樹脂団流の吹き抜けが防止される。At this time, the lining resin C flowing into the discharge hose 27
The outflow of the resin clump is prevented by the orifice 28 at its tip, and the resin clump is received in the hose 27 and remains therein, thereby preventing the resin clump from blowing through.
この結果、補修の最終行程では、終端部に到達した残留
樹脂の樹脂団流が吹き抜けを起さないから、その吹き抜
けに起因して起る管内圧力の急激な圧力変動が起らず、
これにより圧力変動に起因するライニング塗膜の膜厚形
成に悪影響が作用しなくなる。As a result, in the final process of repair, the residual resin flow that has reached the terminal end does not cause blow-through, so the sudden pressure fluctuation in the pipe pressure that occurs due to blow-through does not occur.
This eliminates the adverse effect on the thickness of the lining coating film caused by pressure fluctuations.
〔イ０明の効果〕
以上に説明したように本発明によれば、族１．管の管内
を樹脂団流が流動進行する行程ではその進行方向前側の
管内がオリフィス２８により外部と連通されて通常の吹
き抜けが繰り返され、これにより施工管の内面に対する
ライニング施工が正常に行なわれる状態でありながらも
、補修の最終行程において終端部に到達した管内の残留
樹脂に対しては、それをオリフィス２８により受は止め
、その吹き抜けを防１トできる結果、従来のように補修
の最終行程において残留する樹脂団流の吹き抜けに起因
して起る管内圧力の急激なＨ力変動が発生せず、その圧
力変動に起因して管内に形成したライニング塗膜の膜厚
形成に悪影響を及ぼす不都合を解消することができる。[Effect of I0 light] As explained above, according to the present invention, group 1. During the process in which the resin flow progresses inside the pipe, the inside of the pipe on the front side in the direction of movement is communicated with the outside through the orifice 28, and normal blow-through is repeated, whereby lining is normally performed on the inner surface of the pipe. However, the residual resin in the pipe that has reached the terminal end during the final repair process can be stopped by the orifice 28 and can be prevented from blowing through. This is an inconvenience in that the rapid H force fluctuations in the pressure inside the pipe due to the blow-through of the remaining resin mass flow do not occur, and the pressure fluctuation adversely affects the thickness of the lining coating film formed inside the pipe. can be resolved.
しかもその構成は、オリフィス２８による簡単な構成で
もって自動的に樹脂の吹き抜けを防止した構成であるか
ら、ｆ［業者の人為的な操作ミスが派生せず、確実に補
修の終端部に到達した管内残留樹脂の吹き抜けを防止で
きるという効果も併せ得られる。Moreover, the structure is such that the orifice 28 is a simple structure that automatically prevents the resin from blowing through. This also has the effect of preventing the resin remaining in the pipe from blowing through.
第１図は本発明による９１内面ライニング補修装置の一
実施例を概略的に示す断面図、第２図は要部の拡大断面
図である。
１・・・施工管、２・・・ランチャ−１３・・・レシー
バ、４・・・樹脂注入器、５・・・電磁開閉弁、６・・
・コンプレッサ、７・・流量制御１・ν置、８・・・電
磁切換弁、９・・・ガバナ、１０・・・加圧摺動板、Ｉ
Ｉ・・・フィルタ、１２・・・絞り弁、１３・・・流（
，１制御部、１４・・・開閉弁、１５・・・圧力計、１
６・・・流らにコントローラ、１７・・・アンテナ、１
８・・・レリーフ弁、１９・・・遮断弁、２０・・・圧
力言１．２１・・・流量計、２２・・・発信器、２３・
・アンテナ、２７・・・排出ホース、２８・・オリフィ
ス、２９・・・栓体、Ａ・・・共同マンポール、Ｂ・・
・ビルの地下室、Ｃ・・ライニング樹脂。
特許出願人 東京瓦斯株式会社
同 株式会社 ハッコー
代理人 弁理士 小 橋 信 滓
量 弁理上 小 倉 亘FIG. 1 is a sectional view schematically showing an embodiment of the 91 inner lining repair apparatus according to the present invention, and FIG. 2 is an enlarged sectional view of the main parts. DESCRIPTION OF SYMBOLS 1... Construction pipe, 2... Launcher 13... Receiver, 4... Resin injector, 5... Solenoid shut-off valve, 6...
・Compressor, 7...Flow rate control 1/ν position, 8...Solenoid switching valve, 9...Governor, 10...Pressure sliding plate, I
I...filter, 12...throttle valve, 13...flow (
, 1 control unit, 14... on-off valve, 15... pressure gauge, 1
6... Controller, 17... Antenna, 1
8...Relief valve, 19...Shutoff valve, 20...Pressure word 1.21...Flow meter, 22...Transmitter, 23...
・Antenna, 27...Discharge hose, 28...Orifice, 29...Blug body, A...Common manpole, B...
・Building basement, C... Lining resin. Patent applicant Tokyo Gas Co., Ltd. Hakko Co., Ltd. Agent Patent attorney Shin Kobashi Slag amount Patent attorney Wataru Kokura
Claims (1)
る樹脂を液状のまま管内を閉塞するように注入する手段
と、該注入樹脂をその前後に生起させた加圧流体の圧力
差により団流状をなして管内を一定速度で流動進行させ
る手段とを備えたライニング補修装置において、 上記補修施工管の終端開口部に、内部を透視できる透明
の排出ホースを接続させ、該排出ホースにはその先端開
口部に、上記圧力差の最大設定圧に対し樹脂の通過抵抗
が大きい口径を有するオリフィスを設けて、最終行程で
補修終端部に到達する残留樹脂の吹き抜けを防止してな
ることを特徴とする管内面のライニング補修装置。[Scope of Claims] A means for injecting a fluid resin into a repaired pipe through an opening at one end so as to close the inside of the pipe in a liquid state, and pressurizing the injected resin before and after the injected resin. In a lining repair device equipped with a means for causing fluid to flow at a constant speed inside the pipe in a collective flow due to a pressure difference, a transparent discharge hose that allows the interior to be seen through is connected to the terminal opening of the repaired pipe. The discharge hose is provided with an orifice at its tip opening that has a diameter that has a large resistance to passage of the resin relative to the maximum setting pressure of the pressure difference, to prevent the residual resin from blowing through when it reaches the repair end in the final stroke. A lining repair device for the inner surface of a pipe, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31337190A JP2766908B2 (en) | 1990-11-19 | 1990-11-19 | Pipe lining repair equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31337190A JP2766908B2 (en) | 1990-11-19 | 1990-11-19 | Pipe lining repair equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04187262A true JPH04187262A (en) | 1992-07-03 |
| JP2766908B2 JP2766908B2 (en) | 1998-06-18 |
Family
ID=18040457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31337190A Expired - Lifetime JP2766908B2 (en) | 1990-11-19 | 1990-11-19 | Pipe lining repair equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2766908B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8583004B2 (en) | 2010-12-27 | 2013-11-12 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having exposure unit moving mechanism |
-
1990
- 1990-11-19 JP JP31337190A patent/JP2766908B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8583004B2 (en) | 2010-12-27 | 2013-11-12 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having exposure unit moving mechanism |
| US9128456B2 (en) | 2010-12-27 | 2015-09-08 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having exposure unit moving mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2766908B2 (en) | 1998-06-18 |
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