JPS6248118B2 - - Google Patents
Info
- Publication number
- JPS6248118B2 JPS6248118B2 JP56201865A JP20186581A JPS6248118B2 JP S6248118 B2 JPS6248118 B2 JP S6248118B2 JP 56201865 A JP56201865 A JP 56201865A JP 20186581 A JP20186581 A JP 20186581A JP S6248118 B2 JPS6248118 B2 JP S6248118B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- sealant
- tank
- liquid receiving
- pressurized
- 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
- 239000000565 sealant Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 23
- 230000008439 repair process Effects 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011271 tar pitch Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Pipe Accessories (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、ガス管等の管の補修を行なう管の補
修方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pipe repair method for repairing a pipe such as a gas pipe.
たとえば都市ガスの本管からビル等の建物側に
ガスを供給する供給管に漏れ等を生じて補修が必
要となつた場合、従来は漏洩を生じている管をか
なり長い範囲にわたつて交換しているため大掛り
な作業となつている。特に供給管が複雑に配管さ
れている場合、管の交換作業は非常にやつかいな
作業であり、多大な労力と長時間を要している。
このようなことから、従来、例えば特開昭54ー
31623号公報に開示された通り、既設導管内に液
状シール剤を充填し、その後途剰シール剤を排出
することにより、この導管内の漏洩箇所をシール
剤にてシールする方法が提案されており、このよ
うな方法によれば、既設導管を堀り出して交換す
るなどの面倒な工事を必要とせず、省労力および
短時間で修理できる利点がある。
For example, if a leak occurs in a supply pipe that supplies gas from a city gas main to a building or other building and requires repair, conventionally the leaking pipe had to be replaced over a fairly long area. This makes it a major undertaking. Particularly when the supply pipes are arranged in a complicated manner, replacing the pipes is a very difficult work, requiring a great deal of labor and a long time.
For this reason, conventionally, for example,
As disclosed in Publication No. 31623, a method has been proposed in which a liquid sealant is filled into the existing conduit and the excess sealant is then discharged, thereby sealing leakage points in the conduit with the sealant. According to such a method, there is no need for troublesome work such as digging out and replacing the existing conduit, and there is an advantage that labor can be saved and repairs can be made in a short time.
しかしながら、上記公報に記載された方法は、
既設導管内に供給されたシール剤のうち、余剰シ
ール剤は送り出し側に排出されるようになつてお
り、このためシール剤が無駄となる不具合があつ
た。
However, the method described in the above publication
Of the sealant supplied into the existing conduit, excess sealant was discharged to the delivery side, which caused the problem that the sealant was wasted.
本発明においては、余剰シール剤の再使用を可
能にして経済的な管の補修方法を提供することを
目的とする。 An object of the present invention is to provide an economical method for repairing a pipe by making it possible to reuse surplus sealant.
すなわち本発明は、次のようにして管の補修を
行なうことを特徴とする。まず、補修すべき管の
一方の端部に、シール剤を収容した加圧タンクを
接続するとともに、上記管の他端部には受液タン
クを接続する。次いで上記加圧タンクに加圧ガス
を供給して加圧タンク内のシール剤を上記受液タ
ンクに向けて上記管内に送り込むことにより管内
にライニング剤を充填し、かつこれを所定時間加
圧する。そののち上記受液タンクまたはこの受液
タンク側の管端部に加圧ガスを送給して管内の余
剰シール剤を上記加圧タンクに戻し、こののち管
内面に付着したシール剤を硬化させて管の内面補
修を行なうものである。
That is, the present invention is characterized in that the pipe is repaired in the following manner. First, a pressurized tank containing a sealant is connected to one end of the pipe to be repaired, and a liquid receiving tank is connected to the other end of the pipe. Next, pressurized gas is supplied to the pressurized tank and the sealant in the pressurized tank is sent into the pipe toward the liquid receiving tank, thereby filling the pipe with a lining agent and pressurizing the pipe for a predetermined period of time. After that, pressurized gas is supplied to the liquid receiving tank or the end of the pipe on the liquid receiving tank side to return the excess sealant in the pipe to the pressurized tank, and then harden the sealant that has adhered to the inner surface of the pipe. This is to repair the inner surface of the pipe.
上記本発明によれば、管内に充填されたシール
剤の余剰分は、加圧タンク側に戻されるので、こ
の余剰シール剤の再使用が可能になる。しかも、
管内から直接加圧タンクに戻すので、戻されるシ
ール剤が硬化する割合も少くなる。
According to the present invention, the surplus sealant filled in the pipe is returned to the pressurized tank, so that this surplus sealant can be reused. Moreover,
Since the sealant is returned directly from inside the pipe to the pressurized tank, the rate at which the returned sealant hardens is also reduced.
以下本発明方法の一実施例を図面を参照して説
明する。図中１は補修すべき管の一例としてのガ
ス供給管である。この管１は例えば水平管部１ａ
と垂直管部１ｂとからなり、上記水平管部１ａの
一端１ｃには、図示しないガス計量メータが接続
されるようになつている。また、垂直管部１ｂは
建物の躯体２内を鉛直方向に配管され、その途中
にいわゆるカラン部と呼ばれる接続口３ａ，３ｂ
が分岐している。４ａ，４ｂはコツクである。
An embodiment of the method of the present invention will be described below with reference to the drawings. In the figure, 1 is a gas supply pipe as an example of a pipe to be repaired. This pipe 1 is, for example, a horizontal pipe section 1a.
and a vertical pipe portion 1b, and a gas meter (not shown) is connected to one end 1c of the horizontal pipe portion 1a. Further, the vertical pipe section 1b is piped vertically inside the building frame 2, and there are connection ports 3a, 3b called so-called run sections along the way.
is branching out. 4a and 4b are kotuku.
そして上記管１に漏洩等を生じて補修が必要と
なつた場合、次のようにして補修を行なう。まず
管１に水柱ゲージ等の測定器を接続して漏洩量を
算出する。次に、管の一端１ｃのメータの箇所を
取り外し、開閉弁５を介して加圧タンク６を接続
する。この加圧タンク６内には、硬化前のシール
剤７が収容されている。このシール剤７として
は、たとえばタールピツチを主成分とした溶液
（CFー16）、あるいはコンシールと呼ばれるネオ
プレンゴムを主成分とした溶液、その他ウレタン
を主成分としたエマルジヨン、溶剤タイプなどを
使用する。 If a leak or the like occurs in the pipe 1 and repair is required, the repair is carried out as follows. First, a measuring device such as a water column gauge is connected to the pipe 1 to calculate the amount of leakage. Next, the meter at one end 1c of the pipe is removed, and a pressurized tank 6 is connected via the on-off valve 5. This pressurized tank 6 contains a sealant 7 before hardening. As the sealing agent 7, for example, a solution (CF-16) whose main component is tar pitch, a solution whose main component is neoprene rubber called CONSEAL, an emulsion whose main component is urethane, a solvent type, or the like is used.
また、上記加圧タンク６には送気弁８を介して
コンプレツサ９の吐出口９ａを接続する。１０は
シール剤投入口であつて、仕切弁１１を設けてあ
る。 Further, a discharge port 9a of a compressor 9 is connected to the pressurized tank 6 via an air supply valve 8. Reference numeral 10 denotes a sealant inlet, and a gate valve 11 is provided therein.
一方、垂直管部１ｂの最上部近傍の接続口３ａ
に受液タンク１２を接続するとともに、この接続
口３ａよりも低位置にある接続口３ａにはシール
剤到達確認ホース１３を接続する。上記受液タン
ク１２には液位計１２ａを設けてある。 On the other hand, the connection port 3a near the top of the vertical pipe portion 1b
A liquid receiving tank 12 is connected to the connecting port 3a, and a sealant arrival confirmation hose 13 is connected to the connecting port 3a located at a lower position than the connecting port 3a. The liquid receiving tank 12 is provided with a liquid level gauge 12a.
以上の準備が終了したら、コンプレツサ９を作
動させ、送気弁８を開けて加圧タンク６内に加圧
ガスとしての圧搾空気を供給するとともに、開閉
弁５を開けて加圧タンク６内のシール剤７を管１
内に送り込む。そして、管１の全長にわたつてシ
ール剤が充満してシール剤７が受液タンク１２に
溜つたことを液位計１２ａで確認し、かつ各接続
口３ｂにシール剤７が到達したことを確認したの
ちシール剤７の供給を停止する。そして管１内を
例えば加圧力0.1Kg／cm3で１時間程度放置し、管
１の漏洩箇所のピンホール、ひび割れなどにシー
ル剤が充分にゆきわたるようにする。 When the above preparations are completed, the compressor 9 is operated, the air supply valve 8 is opened to supply compressed air as pressurized gas into the pressurized tank 6, and the on-off valve 5 is opened to supply compressed air inside the pressurized tank 6. Put sealant 7 into tube 1
send it inside. Then, use the liquid level gauge 12a to confirm that the entire length of the pipe 1 is filled with sealant and that the sealant 7 has accumulated in the liquid receiving tank 12, and also to confirm that the sealant 7 has reached each connection port 3b. After checking, the supply of sealant 7 is stopped. Then, the inside of the tube 1 is left for about one hour under a pressure of 0.1 kg/cm 3 , for example, so that the sealant is sufficiently spread to pinholes, cracks, etc. at leakage points in the tube 1 .
そして所定時間経過後に、加圧タンク６内の圧
力を抜くとともに、受液タンク１２または、ガス
接続口３ａにコンプレツサ９の吐出口９ａを接続
して受液タンク１２内を加圧することにより、受
液タンク１２および管１内の余剰シール剤を加圧
タンク６に戻す。この受液タンク１２は垂直管部
１ｂの最上部近傍に説けられており、かつ加圧タ
ンク６が低位置に設置されているから、シール剤
を速やかに加圧タンク６に排出することができ
る。 After a predetermined period of time has elapsed, the pressure inside the pressurized tank 6 is released, and the inside of the liquid receiving tank 12 is pressurized by connecting the discharge port 9a of the compressor 9 to the liquid receiving tank 12 or the gas connection port 3a. Excess sealant in the liquid tank 12 and pipe 1 is returned to the pressurized tank 6. Since this liquid receiving tank 12 is located near the top of the vertical pipe portion 1b, and the pressurized tank 6 is installed at a low position, the sealant can be quickly discharged into the pressurized tank 6. .
次いで、コンプレツサあるいはブロア等を用い
て受液タンク１２から管１内に空気を送り込み、
たとえば１時間程度通風し、管１の内面に残留す
るシール剤を硬化させる。そして、水柱ゲージ圧
300mmH2O程度で５分間位漏洩試験を行ない、漏
洩を生じないことを確認したら加圧タンク６を管
１から取り外し、管１の端部１ｃにガス計量メー
タを接続して管１の補修を終了する。 Next, air is sent into the pipe 1 from the liquid receiving tank 12 using a compressor, a blower, etc.
For example, the sealant remaining on the inner surface of the tube 1 is cured by ventilation for about one hour. and water column gauge pressure
Perform a leakage test at approximately 300mmH 2 O for about 5 minutes, and after confirming that no leakage occurs, remove the pressurized tank 6 from the pipe 1, connect a gas meter to the end 1c of the pipe 1, and repair the pipe 1. finish.
本発明は以上説明したように、加圧タンクと受
液タンクを用いて管内にシール剤を充填するとと
もに所定時間加圧して漏洩箇所にシール剤を充填
したのちシール剤を加圧タンクに戻すようにした
ものである。したがつて埋設ガス管あるいは建物
に据付けられた既設の管の漏洩箇所を修理する場
合であつても、管を堀り起こしたり建物から取外
すなどして交換することなく、管を設置した状態
のままで漏洩箇所を管の内面側からシール剤で塞
ぐことができる。したがつて補修が容易であり、
複雑に配管された管であつても補修作業を簡単な
操作で短時間で補修できる。しかも管内に充填し
たシール剤のうち余剰なシール剤は加圧タンクに
戻すようにしたので、この余剰シール剤を再使用
することができ、経済的である。
As explained above, the present invention uses a pressurized tank and a liquid receiving tank to fill a pipe with a sealing agent, pressurizes the pipe for a predetermined period of time, fills the leakage area with the sealant, and then returns the sealant to the pressurized tank. This is what I did. Therefore, even when repairing a leak in a buried gas pipe or an existing pipe installed in a building, the pipe can be repaired without having to dig up the pipe or remove it from the building to replace it. The leakage point can be plugged with sealant from the inside of the pipe. Therefore, it is easy to repair,
Even if the pipe is complicated, repair work can be done in a short time with simple operations. Moreover, since the excess sealant filled in the pipe is returned to the pressurized tank, this surplus sealant can be reused, which is economical.
図面は本発明方法を実施例する装置系の概略図
である。
１…管、６…加圧タンク、７…シール剤、１２
…受液タンク。
The drawing is a schematic diagram of an apparatus system implementing the method of the invention. 1... Pipe, 6... Pressurized tank, 7... Sealing agent, 12
...Liquid receiving tank.
Claims (1)
を収容した加圧タンクを接続するとともに、上記
管の他端部に受液タンクを接続し、上記加圧タン
クに加圧ガスを供給して該加圧タンク内のシール
剤を上記管内を通じて受液タンクに向けて送り込
むことによりこの管内にシール剤を充填し、この
管内のシール剤を所定時間加圧し、こののち上記
受液タンクまたはこの受液タンク側の管端部に加
圧ガスを送給して管内の余剰シール剤を上記加圧
タンクに戻し、ついで上記管内面に付着されたシ
ール剤を硬化させることを特徴とする管の補修方
法。1 Connect a pressurized tank containing liquid sealant to one end of the pipe to be repaired, connect a liquid receiving tank to the other end of the pipe, and supply pressurized gas to the pressurized tank. The sealing agent in the pressurized tank is then sent through the pipe toward the liquid receiving tank, thereby filling the pipe with the sealing agent, pressurizing the sealing agent in this pipe for a predetermined period of time, and then pumping the sealant into the liquid receiving tank or the liquid receiving tank. A tube characterized by supplying pressurized gas to the end of the tube on the side of the liquid receiving tank to return excess sealant in the tube to the pressurized tank, and then hardening the sealant adhered to the inner surface of the tube. How to repair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56201865A JPS58102893A (en) | 1981-12-15 | 1981-12-15 | Method of repairing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56201865A JPS58102893A (en) | 1981-12-15 | 1981-12-15 | Method of repairing pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58102893A JPS58102893A (en) | 1983-06-18 |
| JPS6248118B2 true JPS6248118B2 (en) | 1987-10-12 |
Family
ID=16448167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56201865A Granted JPS58102893A (en) | 1981-12-15 | 1981-12-15 | Method of repairing pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58102893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0161824U (en) * | 1987-10-14 | 1989-04-20 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62201677A (en) * | 1986-03-03 | 1987-09-05 | Teisan Kk | Method for coating inside surface of pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431622A (en) * | 1977-08-16 | 1979-03-08 | Osaka Gas Co Ltd | Treatment of inside surface of conduit installed |
| JPS5431623A (en) * | 1977-08-16 | 1979-03-08 | Osaka Gas Co Ltd | Sealing-up of conduit installed |
| JPS5447769A (en) * | 1977-09-21 | 1979-04-14 | Osaka Gas Co Ltd | Inner surface treatment of conduit already constructed |
-
1981
- 1981-12-15 JP JP56201865A patent/JPS58102893A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431622A (en) * | 1977-08-16 | 1979-03-08 | Osaka Gas Co Ltd | Treatment of inside surface of conduit installed |
| JPS5431623A (en) * | 1977-08-16 | 1979-03-08 | Osaka Gas Co Ltd | Sealing-up of conduit installed |
| JPS5447769A (en) * | 1977-09-21 | 1979-04-14 | Osaka Gas Co Ltd | Inner surface treatment of conduit already constructed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0161824U (en) * | 1987-10-14 | 1989-04-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58102893A (en) | 1983-06-18 |
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