JPH0671753A - Method for reforming branch pipe - Google Patents
Method for reforming branch pipeInfo
- Publication number
- JPH0671753A JPH0671753A JP4250814A JP25081492A JPH0671753A JP H0671753 A JPH0671753 A JP H0671753A JP 4250814 A JP4250814 A JP 4250814A JP 25081492 A JP25081492 A JP 25081492A JP H0671753 A JPH0671753 A JP H0671753A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- air
- hose
- blower
- branch pipe
- 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
Landscapes
- Pipe Accessories (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、下水本管に連なる複数
の枝管を熱硬化型チューブで一斉に効率良く内面被覆で
きる作業性の良好な枝管リフォーム工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch pipe reforming method with good workability in which a plurality of branch pipes connected to a main sewer pipe can be coated with thermosetting tubes at the same time efficiently.
【０００２】[0002]
【従来の技術】周知のように、下水本管には各家屋から
の排水用の枝管が接続されているが、この下水本管や枝
管は年月がたつと内面が腐蝕するため、その内面を硬化
性チューブで被覆してリフォームする必要がある。2. Description of the Related Art As is well known, drainage branch pipes from each house are connected to the sewage main pipe, but the inner surfaces of these sewage main pipes and branch pipes corrode over time. It is necessary to cover the inner surface with a curable tube and reform it.
【０００３】下水本管のリフォーム工法としては、例え
ば熱硬化型チューブを管内に水圧で反転挿入し、ボイラ
ー車から孔開きの温水ホースをチューブ内に入れて温水
を循環させながらチューブ内の水を加熱し、その熱でチ
ューブを硬化させる工法（ＩＮＳ工法）等が従来から採
用されている。また、最近では、紫外線硬化型チューブ
を管内に空気圧で反転挿入し、該チューブ内で紫外線照
射機を移動させながら紫外線を照射してチューブを硬化
させる工法も試みられているようである。As a method for reforming a sewage main pipe, for example, a thermosetting tube is reversely inserted into the pipe by hydraulic pressure, a hot water hose with a hole is inserted from the boiler wheel into the tube, and hot water is circulated while the water in the tube is circulated. Conventionally, a method of heating and curing the tube with the heat (INS method) has been adopted. Further, recently, it seems that there has been attempted a method in which an ultraviolet-curing type tube is reversely inserted into the tube by air pressure and ultraviolet rays are irradiated while the ultraviolet irradiation machine is moved inside the tube to cure the tube.
【０００４】しかし、枝管の効率のよいリフォーム工法
については今のところ未開発の状態であり、上記のよう
な下水本管のリフォーム工法を枝管に適用しても種々の
問題があった。However, an efficient reforming method for branch pipes has not yet been developed, and there are various problems even if the above-mentioned reforming method for a main sewer pipe is applied to a branch pipe.
【０００５】[0005]
【発明が解決しようとする課題】即ち、上記のＩＮＳ工
法のように水圧でチューブを反転挿入し、ボイラー車か
ら温水ホースをチューブ内に入れて温水を循環させなが
らチューブ内の水を加熱すると、特に気温や水温の低い
冬季にはチューブ内の水が所定の硬化温度までなかなか
昇温せず、チューブを完全に熱硬化させるのに時間がか
かるため、このＩＮＳ工法を採用して家屋密集地に多数
埋設された枝管を一本づつリフォームすると作業効率が
大幅に低下し、工期が長引いて住民に迷惑をかけるとい
う問題があった。That is, when the tube is reversely inserted by water pressure as in the above-mentioned INS method and the hot water hose is put into the tube from the boiler car and the water in the tube is heated while circulating the hot water, Especially in winter when the temperature and water temperature are low, the water in the tube does not rise to the specified curing temperature and it takes time to completely heat-cure the tube. Therefore, this INS method is used to build dense houses. Reforming a large number of buried branch pipes one by one significantly reduced the work efficiency, prolonging the construction period and annoying the residents.
【０００６】一方、紫外線硬化チューブを用いる工法を
採用して枝管をリフォームする場合は、枝管の直径が通
常１５０ｍｍ程度と細いため超小型の特殊な紫外線照射
機が必要になるが、そのような小径の枝管リフォームに
適した超小型の紫外線照射機は未だ市販されてないので
現段階では実施化が困難であり、また、たとえ超小型の
紫外線照射機が開発されたとしても、チューブ内の空気
が洩れないように紫外線照射機をチューブに入れる作業
は面倒で手間がかかるため、この工法を枝管のリフォー
ムに採用することは得策と言い難い。On the other hand, when the branch pipe is reformed by adopting the method using the ultraviolet curing tube, the diameter of the branch pipe is usually as thin as about 150 mm, which requires a special ultra-small UV irradiator. It is difficult to put it into practice at this stage because no ultra-compact UV irradiator suitable for small-diameter branch pipe reforming is available on the market.Even if an ultra-compact UV irradiator is developed, Since it is troublesome and time-consuming to put the UV irradiator into the tube to prevent air from leaking, it is hard to say that this method is used for reforming the branch pipe.
【０００７】本発明は上記問題に鑑みてなされたもの
で、その目的とするところは、複数の枝管を熱硬化型チ
ューブで一斉に効率良く内面被覆できる作業性の良好な
枝管リフォーム工法を提供することにある。The present invention has been made in view of the above problems, and an object of the present invention is to provide a branch pipe reforming method with good workability in which a plurality of branch pipes can be coated with thermosetting tubes at the same time efficiently. To provide.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、本発明の枝管リフォーム工法は、ブロアーの送気口
に設けたヒーティングサージタンクに複数本の給気ホー
スを接続すると共に、複数のチューブ反転装置にそれぞ
れ収容した熱硬化型チューブの封止端に各ホースの先端
を連結し、下水本管に連なる複数の枝管にチューブ反転
装置から各チューブを空気圧で反転挿入すると同時に各
ホースを各チューブ内に引込み、ブロアーからの空気を
ヒーティングサージタンクで加熱して各ホース先端の吹
出口から熱風を各チューブ内へ吹出し、その熱で各チュ
ーブを一斉に硬化させることを特徴とするものである。In order to achieve the above object, the branch pipe reforming method of the present invention connects a plurality of air supply hoses to a heating surge tank provided at an air supply port of a blower, and The ends of the hoses are connected to the sealed ends of the thermosetting tubes housed in the tube reversing devices, and each tube is pneumatically inserted from the tube reversing device into a plurality of branch pipes connected to the sewer mains, and at the same time each hose is connected. Is drawn into each tube, the air from the blower is heated by a heating surge tank, hot air is blown into each tube from the outlet at the end of each hose, and each tube is simultaneously cured by the heat. It is a thing.
【０００９】そして望ましくは、最初、ブロアーからの
空気をヒーティングサージタンクで加熱せずに各ホース
先端の吹出口から各チューブ反転装置内へ吹出し、その
空気圧で各チューブを各枝管に反転挿入すると同時に各
ホースを各チューブ内に引込み、その後ブロアーからの
空気をヒーティングサージタンクで加熱して各ホース先
端の吹出口から熱風を各チューブ内へ吹出すようにした
ものであり、更には、各チューブ内へ吹出した熱風を各
チューブ反転装置の排気口から還流ホースを経てブロア
ーへ戻すようにしたものである。Desirably, first, the air from the blower is blown into each tube reversing device from the blowout port of each hose without being heated by the heating surge tank, and each tube is reversed and inserted into each branch pipe by its air pressure. At the same time, each hose is drawn into each tube, and then the air from the blower is heated by the heating surge tank so that hot air is blown into each tube from the outlet at the tip of each hose. The hot air blown into each tube is returned from the exhaust port of each tube reversing device to the blower via the reflux hose.
【００１０】[0010]
【作用】本発明の枝管リフォーム工法のように、チュー
ブを硬化させる熱媒体としてヒーティングサージタンク
で加熱した熱風を用いると、すぐにチューブを所定の硬
化温度まで加熱して効率よく硬化させることができる。
しかも、本発明のリフォーム工法は、複数の枝管にチュ
ーブを反転挿入すると同時に各チューブ内へ給気ホース
を引込み、ヒーティングサージタンクで加熱した熱風を
各ホース先端の吹出口から吹出して各チューブを一斉に
熱硬化させることにより、複数の枝管を同時にリフォー
ムするものであるから、枝管を一本づつリフォームする
場合に比べると作業効率が大幅に向上し、工期を短縮す
ることができる。特に、給気ホース先端の吹出口から各
チューブ内へ吹出した熱風を還流ホースを通じてブロア
ーへ戻して循環させる場合は、ヒーティングサージタン
ク内で空気を加熱するのに要するエネルギーを節約でき
るので経済的である。また、最初ブロアーからの空気を
ヒーティングサージタンクで加熱せずに各チューブ反転
装置へ供給してチューブの反転挿入を行い、その後ブロ
アーからの空気をヒーティングサージタンクで加熱して
各チューブの熱硬化を行う場合は、反転挿入用のブロア
ーと熱硬化用のブロアーを個別に準備する必要がないの
で省設備化を図ることができる。When the hot air heated by the heating surge tank is used as the heat medium for hardening the tube as in the branch pipe reforming method of the present invention, the tube is immediately heated to a predetermined hardening temperature to be efficiently hardened. You can
Moreover, in the reforming method of the present invention, the tubes are reversed and inserted into the plurality of branch pipes, and at the same time, the air supply hose is drawn into each tube, and the hot air heated by the heating surge tank is blown out from the outlet of each hose to each tube. Since a plurality of branch pipes are reformed at the same time by heat-curing all of them simultaneously, work efficiency can be significantly improved and the construction period can be shortened as compared with the case of reforming each branch pipe one by one. In particular, when the hot air blown into each tube from the outlet of the air supply hose is returned to the blower through the reflux hose and circulated, the energy required to heat the air in the heating surge tank can be saved, so it is economical. Is. In addition, the air from the blower is first supplied to each tube reversing device without being heated by the heating surge tank, and the tubes are inverted and inserted, and then the air from the blower is heated by the heating surge tank to heat the tubes. When curing is performed, it is not necessary to separately prepare a blower for reverse insertion and a blower for thermosetting, so that facility saving can be achieved.
【００１１】[0011]
【実施例】以下、図面に基づいて本発明の実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１は本発明の枝管リフォーム工法の一実
施例を示す概略平面図で、下水本管１に連なる３本の枝
管２を一斉にリフォームする場合を例示したものであ
り、図２〜図５は同実施例の断面図である。FIG. 1 is a schematic plan view showing an embodiment of a branch pipe reforming method of the present invention, which illustrates a case where three branch pipes 2 connected to a sewage main pipe 1 are simultaneously reformed. 2 to 5 are sectional views of the same embodiment.
【００１３】図１〜図２において、３はブロアーであ
り、このブロアー３の送気口にはヒーティングサージタ
ンク４が取付けられている。このヒーティングサージタ
ンク４は開閉バルブ４ａの付いた複数のホース接続口を
有し、このホース接続口には枝管２と同数（３本）の給
気ホース５が接続されている。この給気ホース５は耐熱
性に優れた可撓ホースで、その先端には空気を後方に吹
出す吹出口５ａが取付けられている。1 and 2, reference numeral 3 is a blower, and a heating surge tank 4 is attached to an air supply port of the blower 3. The heating surge tank 4 has a plurality of hose connection ports with an opening / closing valve 4a, and the same number (3) of air supply hoses 5 as the branch pipes 2 are connected to the hose connection ports. The air supply hose 5 is a flexible hose having excellent heat resistance, and has a blowout port 5a attached to the tip thereof to blow air backward.
【００１４】６はチューブ反転装置であって、この反転
装置６は筒体６ａと、筒体上端を閉塞する閉塞部材６ｂ
と、筒体下端に取付けられたガイドエルボ６ｃとで構成
されている。閉塞部材６ｂには、給気ホース５を反転装
置内部へ挿入する挿入口と、給気ホース５を挿入口へ誘
導する一対のガイドローラ６ｄが設けられ、更にガイド
エルボ６ｃの中間膨出部の内側にも、給気ホース５を枝
管２内へスムーズに案内する鼓型ガイドローラ６ｆが設
けられている。また、ガイドエルボ６ｃの中間膨出部に
は排気口６ｅが形成され、この排気口６ｅに還流ホース
９の一端が接続されている。そして、この還流ホース９
の他端は、ブロアー３の吸気側に複数設けられた開閉バ
ルブ３ａ付きのホース接続口に接続されている。Reference numeral 6 is a tube reversing device. This reversing device 6 is a cylindrical body 6a and a closing member 6b for closing the upper end of the cylindrical body.
And a guide elbow 6c attached to the lower end of the cylinder. The closing member 6b is provided with an insertion port for inserting the air supply hose 5 into the reversing device and a pair of guide rollers 6d for guiding the air supply hose 5 to the insertion port. A drum-shaped guide roller 6f that smoothly guides the air supply hose 5 into the branch pipe 2 is also provided inside. An exhaust port 6e is formed in the middle bulge of the guide elbow 6c, and one end of a return hose 9 is connected to the exhaust port 6e. And this return hose 9
The other end of is connected to a hose connection port with a plurality of open / close valves 3a provided on the intake side of the blower 3.
【００１５】このようなチューブ反転装置６は、そのガ
イドエルボ６ｃの先端開口を枝管２の端部に接近させた
状態で各々の取付桝７に一基づつ立設され、倒れないよ
うに支柱６ｇで支えられている。これら反転装置６の内
部には一端を封止した熱硬化型チューブ８が収容され、
このチューブ８の封止端に給気ホース５先端の吹出口５
ａが連結されている。そして、このチューブ８の反対側
開口端は外側に折返されて、ガイドエルボ６ｃの先端開
口部に気密的に取付けられている。このチューブ８は繊
維基材に不飽和ポリエステル系樹脂を含浸させたもの
で、加熱しても硬化するし、紫外線を照射しても硬化す
るものである。The tube reversing device 6 as described above is erected one by one in each of the mounting rods 7 in a state where the tip opening of the guide elbow 6c is brought close to the end of the branch pipe 2, and is supported by a column so as not to fall. It is supported by 6g. A thermosetting tube 8 having one end sealed is housed inside the reversing device 6,
At the sealing end of the tube 8, the air outlet 5 at the tip of the air supply hose 5
a is connected. The opposite open end of the tube 8 is folded back to the outside and is hermetically attached to the open end of the guide elbow 6c. The tube 8 is formed by impregnating a fiber base material with an unsaturated polyester resin, and is cured by heating and also by irradiation with ultraviolet rays.
【００１６】なお、１０はチューブ反転装置６の上記排
気口６ｅから引出したサーモメーター、１１は給気ホー
ス５のガイドローラである。Reference numeral 10 is a thermometer drawn out from the exhaust port 6e of the tube reversing device 6, and 11 is a guide roller of the air supply hose 5.
【００１７】図２に示すようにリフォームの準備が完了
すると、ブロアー３の開閉バルブ３ａを閉じ、ヒーティ
ングサージタンク４の電源を入れないでブロアー３を作
動させ、該タンク４の開閉バルブ４ａを開けて冷風を各
給気ホース５の吹出口５ａから各反転装置６の内部に供
給する。すると、各反転装置６内部の空気圧が上昇し、
その空気圧によって装置内部の熱硬化型チューブ８はガ
イドエルボ６ｃの先端から反転して枝管２内へ挿入さ
れ、図３に示すようにチューブ８の反転挿入に伴って給
気ホース５が反転装置６内部へ引込まれる。そして、図
４に示すようにチューブ８の反転挿入が完了した状態で
は、チューブ８の封止端が下水本管１へ突出し、給気ホ
ース５がチューブ８の封止端近くまで引き込まれること
になる。反転挿入に伴う給気ホース５の引込みは、ガイ
ドローラ１１，６ｂ，６ｆによって給気ホース５が引掛
からないように案内されるのでスムーズに行われる。When the preparation for reform is completed as shown in FIG. 2, the opening / closing valve 3a of the blower 3 is closed, the blower 3 is operated without turning on the power of the heating surge tank 4, and the opening / closing valve 4a of the tank 4 is opened. When opened, cold air is supplied into the inside of each reversing device 6 from the outlet 5a of each air supply hose 5. Then, the air pressure inside each reversing device 6 rises,
Due to the air pressure, the thermosetting type tube 8 inside the apparatus is inverted from the tip of the guide elbow 6c and inserted into the branch pipe 2, and as shown in FIG. 6 Pulled inside. Then, as shown in FIG. 4, in the state in which the tube 8 is completely inverted and inserted, the sealing end of the tube 8 protrudes into the sewer main pipe 1, and the air supply hose 5 is drawn to near the sealing end of the tube 8. Become. Since the air supply hose 5 is guided by the guide rollers 11, 6b, 6f so that the air supply hose 5 is not caught by the reverse insertion, the air supply hose 5 is smoothly drawn.
【００１８】このように各枝管２へのチューブ８の反転
挿入が完了すると、ヒーティングサージタンク４の電源
を入れてブロアー３からの空気を加熱し、熱風を各給気
ホース先端の吹出口５ａから各チューブ８内へ吹出し
て、その熱で各チューブ８を一斉に硬化させる。このと
きブロアー３の開閉バルブ３ａを開いて、吹出口５ａか
らチューブ８内へ吹出した熱風を排気口６ｅから還流ホ
ース９を通じてブロアー３へ戻し、熱風を循環させる。
このように循環させると、加熱に要するエネルギーを節
約できるので経済的である。また、熱風の温度はサーモ
メーター１０を見ながらヒーティングサージタンク４の
発熱量を増減させて、チューブの硬化に適した温度に調
節する。このようにチューブ８を硬化させる熱媒体とし
て熱風を採用すると、冬季でもすぐにチューブ８を硬化
温度まで充分加熱できるので効率良くチューブ８を硬化
させることができ、温度調節も容易である。When the tube 8 is completely inserted into each branch pipe 2 in this manner, the heating surge tank 4 is turned on to heat the air from the blower 3 and the hot air is blown out from the outlet of each air supply hose. It blows out from 5a into each tube 8, and the tubes 8 are simultaneously cured by the heat. At this time, the open / close valve 3a of the blower 3 is opened, and the hot air blown into the tube 8 from the air outlet 5a is returned from the exhaust port 6e to the blower 3 through the reflux hose 9 to circulate the hot air.
Such circulation is economical because energy required for heating can be saved. Further, the temperature of the hot air is adjusted to a temperature suitable for hardening the tube by increasing or decreasing the heat generation amount of the heating surge tank 4 while watching the thermometer 10. When hot air is used as the heat medium for curing the tube 8 in this manner, the tube 8 can be sufficiently heated to the curing temperature immediately even in winter, so that the tube 8 can be efficiently cured and the temperature control is easy.
【００１９】各チューブ８の硬化が完了すると、図５に
示すように硬化したチューブ８の両端を切断し、ブロア
ー、ヒーティングサージタンク、反転装置等の諸設備を
取除いて枝管リフォーム工事を終了する。そして、必要
があれば下水本管１の内面も引き続いてリフォームす
る。この下水本管１のリフォームは、前記チューブ８と
同様に繊維基材に不飽和ポリエステル系樹脂を含浸させ
たチューブを下水本管１に空気圧で反転挿入し、チュー
ブ内に紫外線照射機を導入して走行させながら紫外線を
照射することによって行うのが望ましい。このように下
水本管１の内面をリフォームすると、下水本管１内面の
チューブと枝管２内面のチューブ８の端部が水密的に溶
着されるので、リフォーム後に枝管２の先端開口を閉塞
しているチューブを円形に切り取って仕上げを行って
も、下水本管１と枝管２との接続部分から水洩れを生じ
る心配はない。When the curing of each tube 8 is completed, both ends of the cured tube 8 are cut as shown in FIG. 5, and various equipment such as a blower, a heating surge tank, and a reversing device are removed to perform branch pipe reforming work. finish. Then, if necessary, the inner surface of the main sewer 1 is continuously reformed. As for the reform of the sewage main pipe 1, the tube in which the fiber base material is impregnated with the unsaturated polyester resin is inserted into the sewage main pipe 1 by air pressure inversion like the above-mentioned tube 8 and the ultraviolet irradiation machine is introduced into the tube. It is desirable to perform it by irradiating ultraviolet rays while running the vehicle. When the inner surface of the sewage main pipe 1 is reformed in this way, the tubes on the inner surface of the sewage main pipe 1 and the ends of the tubes 8 on the inner surface of the branch pipe 2 are welded in a watertight manner, so that the tip end opening of the branch pipe 2 is closed after reforming. There is no risk of water leakage from the connecting portion between the main sewer pipe 1 and the branch pipe 2 even if the tube is cut into a circular shape for finishing.
【００２０】本発明の枝管リフォーム工法は、上記実施
例のように複数の枝管２にチューブ８を反転挿入すると
同時に給気ホース５を各チューブ８内に引込み、各ホー
ス先端の吹出口５ａから吹出す熱風で各チューブ８を一
斉に硬化させて複数の枝管２を同時にリフォームするの
で、枝管２を一本づつリフォームする場合に比べると施
工性が大幅に向上し、工期を短縮することができる。According to the branch pipe reforming method of the present invention, the tubes 8 are invertedly inserted into the plurality of branch pipes 2 as in the above-described embodiment, and at the same time, the air supply hoses 5 are drawn into the tubes 8 to blow out the air outlets 5a at the tips of the hoses. Since each tube 8 is simultaneously hardened by hot air blown from it and a plurality of branch pipes 2 are reformed at the same time, the workability is greatly improved and the construction period is shortened as compared with the case where each branch pipe 2 is reformed one by one. be able to.
【００２１】上記の実施例では、最初ブロアー３からの
空気をヒーティングサージタンク４で加熱しないで反転
装置６に供給し、その空気圧でチューブ８を枝管２へ反
転挿入しているが、例えば、反転装置６に別のブロアー
を接続し、この別のブロアーでチューブ８を反転挿入し
てから前記ブロアー３に切替えて熱風をチューブ８内に
供給するようにしても勿論よい。しかし、上記実施例の
ようにヒーティングサージタンク４の電源をＯＮ，ＯＦ
Ｆして、ブロアー３からの空気をチューブの反転挿入と
熱硬化の双方に併用する場合は、複数のブロアーを使用
する必要がないので省設備化を図れるという利点があ
る。In the above embodiment, the air from the blower 3 is first supplied to the reversing device 6 without being heated by the heating surge tank 4 and the tube 8 is reversed and inserted into the branch pipe 2 by its air pressure. Of course, another blower may be connected to the reversing device 6, the tube 8 may be inverted and inserted by this other blower, and then the blower 3 may be switched to supply hot air into the tube 8. However, the power of the heating surge tank 4 is turned on and turned off as in the above embodiment.
However, when the air from the blower 3 is used for both reverse insertion and thermosetting of the tube, it is not necessary to use a plurality of blowers, which is advantageous in that the facility can be saved.
【００２２】また、上記の実施例では、筒体６ａの上下
に閉塞部材６ｂとガイドエルボ６ｃを取付けた比較的大
型のチューブ反転装置６を取付桝７に立設してチューブ
８を反転挿入しているが、反転装置はチューブ８を空気
圧で枝管２内へ反転挿入すると同時に給気ホース５をチ
ューブ内へ引込めるものであれば特に制限がなく、例え
ば図６に示すような小型の反転装置を取付桝７の内部に
設置してチューブ８を枝管２内へ反転挿入するようにし
てもよい。この図６に例示のチューブ反転装置は、前面
に反転口６０ａを備えた小型チャンバー６０ｂの上壁に
チューブ挿入口６０ｃと排気口６０ｄを設け、該上壁の
内側に湾曲したホースガイド片６０ｅ又はガイドローラ
（不図示）を設けたもので、図示のように熱硬化型チュ
ーブ８をジグザグに折畳んでチャンバー６０ｂ内に収容
し、ホース挿入口６０ｃから挿入した給気ホース５先端
の吹出口５ａをチューブ８の封止端に連結すると共に、
該チューブ８の開放端を外側へ折返して反転口６０ａに
取付け、排気口６０ｄに還流ホース９を接続して使用す
るものである。このような小型のチューブ反転装置は取
扱いが容易であり、給気ホース５の吹出口５ａから空気
をチャンバー６０ｂ内へ供給すると、その圧力でチュー
ブ８が反転口６０ａから枝管へ反転挿入され、この反転
挿入に伴って給気ホース５がホースガイド片６０ｅ又は
ガイドローラに案内されてスムーズにチューブ内へ引込
まれる。Further, in the above embodiment, the relatively large tube reversing device 6 having the closing member 6b and the guide elbow 6c mounted on the upper and lower sides of the tubular body 6a is erected on the mounting rod 7 and the tube 8 is reversed and inserted. However, the reversing device is not particularly limited as long as the tube 8 can be reversed and inserted into the branch pipe 2 by air pressure and at the same time the air supply hose 5 can be drawn into the tube. For example, a small reversing device as shown in FIG. The device may be installed inside the mounting rod 7 and the tube 8 may be inverted and inserted into the branch pipe 2. In the tube reversing device illustrated in FIG. 6, a tube insertion port 60c and an exhaust port 60d are provided on the upper wall of a small chamber 60b having a reversing port 60a on the front surface, and a curved hose guide piece 60e or an inside of the upper wall is provided. A guide roller (not shown) is provided, and the thermosetting tube 8 is zigzag-folded as shown in the drawing to be housed in the chamber 60b, and the air outlet 5a at the tip of the air supply hose 5 inserted from the hose insertion port 60c. Is connected to the sealed end of the tube 8 and
The open end of the tube 8 is folded outward and attached to the reversing port 60a, and the recirculation hose 9 is connected to the exhaust port 60d for use. Such a small tube reversing device is easy to handle, and when air is supplied from the outlet 5a of the air supply hose 5 into the chamber 60b, the tube 8 is reversed and inserted into the branch pipe from the reversing port 60a by the pressure, Along with this reverse insertion, the air supply hose 5 is guided by the hose guide piece 60e or the guide roller and smoothly drawn into the tube.
【００２３】[0023]
【発明の効果】以上の説明から明らかなように、本発明
の枝管リフォーム工法は簡単な設備と作業で複数の枝管
を効率よく一斉にリフォームすることができるので、家
屋密集地のようにリフォームすべき枝管が多数埋設され
ているところでも短期間でリフォーム工事を完了するこ
とができ、住民に迷惑をかける心配がないといった顕著
な効果を奏する。As is apparent from the above description, the branch pipe reforming method of the present invention can efficiently reform a plurality of branch pipes simultaneously with simple equipment and work, so that the branch pipe remodeling method can be performed like a house dense area. Even if many branch pipes to be remodeled are buried, the renovation work can be completed in a short period of time, and there is a remarkable effect that there is no worry of inconvenience to residents.
【図１】本発明の枝管リフォーム工法の一実施例を示す
概略平面図である。FIG. 1 is a schematic plan view showing an embodiment of a branch pipe reforming method of the present invention.
【図２】同実施例の断面図で、熱硬化型チューブを枝管
に反転挿入する前の状態を示すものである。FIG. 2 is a cross-sectional view of the same embodiment, showing a state before the thermosetting tube is inverted and inserted into the branch pipe.
【図３】同実施例の断面図で、熱硬化型チューブを枝管
の途中まで反転挿入した状態を示すものである。FIG. 3 is a cross-sectional view of the same embodiment, showing a state in which a thermosetting tube is inserted upside down in the middle of a branch pipe.
【図４】同実施例の断面図で、枝管への熱硬化型チュー
ブの反転挿入が完了し、給気ホース先端の吹出口から吹
出す熱風で該チューブを熱硬化させているところを示す
ものである。FIG. 4 is a cross-sectional view of the same embodiment, showing that the thermosetting tube has been inverted and inserted into the branch pipe, and the tube is thermoset by hot air blown from the outlet of the tip of the air supply hose. It is a thing.
【図５】同実施例の断面図で、リフォーム工事が終了し
た状態を示すものである。FIG. 5 is a cross-sectional view of the same embodiment, showing a state where the remodeling work is completed.
【図６】本発明に使用されるチューブ反転装置の他の例
を示す断面図である。FIG. 6 is a cross-sectional view showing another example of the tube inverting device used in the present invention.
１ 下水本管 ２ 枝管 ３ ブロアー ４ ヒーティングサージタンク ５ 給気ホース ５ａ 吹出口 ６ チューブ反転装置 ８ 熱硬化型チューブ 1 Sewage main pipe 2 Branch pipe 3 Blower 4 Heating surge tank 5 Air supply hose 5a Air outlet 6 Tube reversing device 8 Thermosetting tube
Claims (3)
ージタンクに複数本の給気ホースを接続すると共に、複
数のチューブ反転装置にそれぞれ収容した熱硬化型チュ
ーブの封止端に各ホースの先端を連結し、下水本管に連
なる複数の枝管にチューブ反転装置から各チューブを空
気圧で反転挿入すると同時に各ホースを各チューブ内に
引込み、ブロアーからの空気をヒーティングサージタン
クで加熱して各ホース先端の吹出口から熱風を各チュー
ブ内へ吹出し、その熱で各チューブを一斉に硬化させる
ことを特徴とする枝管リフォーム工法。1. A plurality of air supply hoses are connected to a heating surge tank provided at an air supply port of a blower, and a thermosetting tube housed in each of a plurality of tube reversing devices is provided with a sealing end of each hose. Connect the ends and insert each tube by air pressure from the tube reversing device into multiple branch pipes connected to the main sewer pipe and at the same time draw each hose into each tube and heat the air from the blower with the heating surge tank. A branch pipe reforming method characterized in that hot air is blown into each tube from the outlet at the tip of each hose, and each tube is simultaneously cured by the heat.
タンクで加熱せずに各ホース先端の吹出口から各チュー
ブ反転装置内へ吹出し、その空気圧で各チューブを各枝
管に反転挿入すると同時に各ホースを各チューブ内に引
込み、その後ブロアーからの空気をヒーティングサージ
タンクで加熱して各ホース先端の吹出口から熱風を各チ
ューブ内へ吹出すことを特徴とする請求項１に記載の枝
管リフォーム工法。2. Air from a blower is blown into each tube reversing device from a blowout port of each hose without being heated by a heating surge tank, and each tube is inverted and inserted into each branch pipe by its air pressure, and at the same time each hose is blown. 2. The branch pipe reforming according to claim 1, wherein the tube is drawn into each tube, and then the air from the blower is heated by a heating surge tank to blow hot air into each tube from the outlet of each hose tip. Construction method.
反転装置の排気口から還流ホースを経てブロアーへ戻す
ことを特徴とする請求項１に記載の枝管リフォーム工
法。3. The branch pipe reforming method according to claim 1, wherein the hot air blown into each tube is returned from the exhaust port of each tube reversing device to the blower through the reflux hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25081492A JP3191125B2 (en) | 1992-08-25 | 1992-08-25 | Branch pipe reforming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25081492A JP3191125B2 (en) | 1992-08-25 | 1992-08-25 | Branch pipe reforming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0671753A true JPH0671753A (en) | 1994-03-15 |
| JP3191125B2 JP3191125B2 (en) | 2001-07-23 |
Family
ID=17213440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25081492A Expired - Fee Related JP3191125B2 (en) | 1992-08-25 | 1992-08-25 | Branch pipe reforming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3191125B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006123547A (en) * | 2004-10-27 | 2006-05-18 | Shonan Plastic Mfg Co Ltd | Branch pipe lining material and branch pipe lining process |
| JP2012101407A (en) * | 2010-11-09 | 2012-05-31 | Aquaintec Corp | Conduit line inner periphery side structure and construction method for lining conduit line inner periphery |
| KR101703192B1 (en) * | 2016-02-04 | 2017-02-22 | 주식회사 지성이엔지 | Repair reinforcement apparatus for superannuated pipe and repair reinforcement thereof |
-
1992
- 1992-08-25 JP JP25081492A patent/JP3191125B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006123547A (en) * | 2004-10-27 | 2006-05-18 | Shonan Plastic Mfg Co Ltd | Branch pipe lining material and branch pipe lining process |
| JP2012101407A (en) * | 2010-11-09 | 2012-05-31 | Aquaintec Corp | Conduit line inner periphery side structure and construction method for lining conduit line inner periphery |
| KR101703192B1 (en) * | 2016-02-04 | 2017-02-22 | 주식회사 지성이엔지 | Repair reinforcement apparatus for superannuated pipe and repair reinforcement thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3191125B2 (en) | 2001-07-23 |
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