JPH02197317A - Lining method for tube and lined tube - Google Patents
Lining method for tube and lined tubeInfo
- Publication number
- JPH02197317A JPH02197317A JP1551589A JP1551589A JPH02197317A JP H02197317 A JPH02197317 A JP H02197317A JP 1551589 A JP1551589 A JP 1551589A JP 1551589 A JP1551589 A JP 1551589A JP H02197317 A JPH02197317 A JP H02197317A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- lined
- lining
- pipe
- width
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 23
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 36
- 238000003466 welding Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 238000005452 bending Methods 0.000 abstract description 12
- 239000011347 resin Substances 0.000 description 21
- 229920005989 resin Polymers 0.000 description 21
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は管の内張り工法および内張リチューブに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pipe lining method and a lining retubing method.
上水道管、下水道管、ガス管、原油等の油送管等の管内
を内張りする工法としては、従来、熱硬化性樹脂を含浸
させた内張リチューブを水圧によってチューブ内外周面
を反転させながら被内張り管内に挿入し、この後前記内
張りチューブの含浸樹脂を硬化させて管内を内張りする
チューブ反転式の内張り工法が利用されている。The conventional method for lining the inside of water pipes, sewage pipes, gas pipes, crude oil transmission pipes, etc. is to use water pressure to invert the inner and outer circumferential surfaces of the tube while lining the inner and outer tubes impregnated with thermosetting resin. A tube reversal lining method is used in which the tube is inserted into a lined pipe and then the impregnated resin of the lined tube is cured to line the inside of the pipe.
このチューブ反転式の内張り工法に使用される内張りチ
ューブは、フェルト（不織布）または織布等からなる樹
脂含浸層と、チューブ内外周面を反転させたときにその
内周面の被覆膜となる樹脂フィルムとを積層したシート
材をチューブ状に成形したもので、この内張りチューブ
は、偏平に押し潰した状態でリールに巻かれており、被
内張り管内に挿入するときにリールから繰り出されて樹
脂含浸層に熱硬化性樹脂を含浸され、この後被内張り管
内に反転挿入される。The lining tube used in this tube-inversion lining method has a resin-impregnated layer made of felt (non-woven fabric) or woven fabric, and a coating film on the inner circumference when the inner and outer circumferential surfaces of the tube are inverted. It is made of sheet material laminated with resin film and molded into a tube shape. This lined tube is crushed flat and wound around a reel, and when inserted into the lined pipe, it is unwound from the reel and filled with resin. The impregnated layer is impregnated with a thermosetting resin, and then inverted and inserted into the lined pipe.
この内張りチューブの被内張り管内への反転挿入は、内
張りチューブの先端をその内外周面を反転させてチュー
ブ保持リングに保持させ、この状態で内張リチューブの
反転部の内側に注水することによって行なわれる。この
ように内張りチューブの反転部の内側に注水すると、内
張リチューブの反転部が水圧によって管状に拡開すると
ともに、内張りチューブの未反転部が反転部との間の折
返し部にかかる水圧によって反転部内に引込まれ、この
未反転部がその先端側（折返し部側）から順次内周面が
外周面となるように反転して反転部が伸びて行き、内張
りチューブが内張り管を形づくりながら被内張り管内へ
と入って行く。また、内張りチューブの含浸樹脂の硬化
は、内張リチューブを被内張り管の全長に反転挿入した
後に、内張リチューブ内の水中に高温の温水を供給して
内張リチューブ内の水を昇温させ、その熱で内張リチュ
ーブに含浸させである熱硬化性樹脂を硬化させることに
よって行なわれる。このように内張りチューブに含浸さ
せた熱硬化性樹脂を硬化させると、被内張り管がその内
壁面を内張リチューブで内張すされた二層管となる。This reversal insertion of the lined tube into the lined pipe is carried out by inverting the inner and outer circumferential surfaces of the tip of the lined tube and holding it in the tube retaining ring, and in this state, pouring water into the inside of the inverted part of the lined tube. It will be done. When water is injected inside the reversed part of the lining tube in this way, the reversed part of the lining tube expands into a tubular shape due to water pressure, and the uninverted part of the lining tube is reversed by the water pressure applied to the folded part between it and the reversed part. This uninverted part is sequentially inverted from its tip side (turning part side) so that the inner circumferential surface becomes the outer circumferential surface, and the inverted part extends, and the lined tube forms the lined tube while forming the lined tube. Go into the pipe. In addition, to cure the impregnated resin in the lining tube, after inserting the lining tube over the entire length of the lined tube, high-temperature hot water is supplied into the water in the lining tube to raise the temperature of the water in the lining tube. This is done by using the heat to harden the thermosetting resin that is impregnated into the inner tube. When the thermosetting resin impregnated into the lined tube is cured, the lined tube becomes a two-layered tube whose inner wall surface is lined with the lined tube.
なお、このチューブ反転式の内張り工法には、被内張り
管内への内張りチューブの反転挿入を空気圧によって行
なう工法もあり、その場合は内張リチューブの含浸樹脂
としては熱硬化性または光硬化性樹脂が使用され、スチ
ームまたは紫外線によって硬化されている。In addition, this tube reversal type lining method also includes a method in which the lining tube is reversely inserted into the lined pipe using air pressure, and in that case, thermosetting or photosetting resin is used as the impregnating resin for the lining retube. used and cured by steam or ultraviolet light.
しかしながら、上記従来の管の内張り工法は、被内張り
管内に内張リチューブを挿入する際に内張りチューブに
硬化性樹脂を含浸させ、被内張り管内に内張リチューブ
を挿入した後に内張リチュブの含浸樹脂を硬化させて内
張り管を構成するものであるため、内張りチューブへの
硬化性樹脂の含浸および内張リチューブの含浸樹脂の硬
化に時間がかかり、そのために内張り施工にかなりの時
間を要するという問題をもっていた。しかも、上記管の
内張り工法では、被内張り管内に構成される内張り管が
、フェルトまたは織布等を主体とする内張リチューブに
含浸された硬化性樹脂の硬化層であるため、内張り管の
強度にも問題があった。However, in the conventional pipe lining method described above, the lining tube is impregnated with a curable resin when the lining tube is inserted into the lined pipe, and the lining tube is impregnated with the curable resin after the lining tube is inserted into the lined pipe. Because the lined tube is constructed by curing the lined tube, it takes time to impregnate the lined tube with the curable resin and harden the impregnated resin in the lined retube, which causes the problem that it takes a considerable amount of time to install the lined tube. there was. Moreover, in the pipe lining method described above, the lining pipe constructed inside the lined pipe is a hardened layer of curable resin impregnated with a lining tube mainly made of felt or woven fabric, so the strength of the lining pipe is increased. There was also a problem.
本発明は上記のような実情にかんがみてなされたもので
あって、その目的とするところは、短時間で能率よく被
内張り管内を内張りすることかでき、しかも被内張り管
内に高強度の内張り管を構成することができる管の内張
り工法を提供するとともに、この工法に使用される内張
リチューブとして、低コストにかつ容易に製造できる内
張りチューブを提供することにある。The present invention has been made in view of the above-mentioned circumstances, and its purpose is to efficiently line the inside of a lined pipe in a short period of time, and to provide a lined pipe with high strength inside the lined pipe. It is an object of the present invention to provide a pipe lining construction method that can construct a tube, and to provide a lining tube that can be easily manufactured at low cost as a lining retube used in this construction method.
本発明の管の内張り工法は、偏平に潰された形状をなし
かつ被内張り管の内周長とほぼ同じかあるいはそれより
僅かに小さい外周長をもつ金属薄板製の内張リチューブ
を、その幅方向に屈曲させてチューブ幅を前記被内張り
管の内径より小さくした状態で前記被内張り管内に挿入
し、この後前記内張りチューブ内に流体を送入してこの
流体圧で前記内張りチューブを管状に拡開させることを
特徴とするものである。In the pipe lining method of the present invention, a lined retube made of a thin metal plate is formed into a flattened shape and has an outer circumference that is approximately the same as or slightly smaller than the inner circumference of the pipe to be lined. The tube is bent in a direction to make the width of the tube smaller than the inner diameter of the lined tube and then inserted into the lined tube, and then fluid is fed into the lined tube and the fluid pressure transforms the lined tube into a tubular shape. It is characterized by being expanded.
また、本発明の管の内張りチューブは、被内張り管の内
周長のほぼ１／２あるいはそれより僅かに小さい幅の２
枚の帯状金属薄板を重ね、この２枚の帯状金属薄板の両
側縁を溶接したことを特徴とするものである。Further, the lined tube of the pipe of the present invention has a width of approximately 1/2 or slightly smaller than the inner circumference of the lined pipe.
It is characterized by stacking two strip-shaped thin metal plates and welding both side edges of the two strip-shaped thin metal plates.
すなわち、本発明の管の内張す工法は、金属薄板製の内
張リチューブで被内張り管内を内張りするものであり、
上記金属薄板製の内張リチューブは、被内張り管の内周
長とほぼ同じかあるいはそれより僅かに小さい外周長を
もつものであるために、偏平に潰された状態での内張り
チューブの幅は被内張り管の内径より大きいが、この内
張りチューブをその幅方向に屈曲させてチューブ幅を前
記被内張り管の内径より小さくしてやれば、この内張リ
チューブを被内張り管内に挿入することができる。また
、上記内張りチューブは金属薄板製のものであるために
、この内張りチューブを被内張り管内に挿入した後に内
張りチューブ内に流体を送入してやれば、この流体圧で
内張りチューブを管状に拡開させることができるから、
」１記金属薄板製の内張りチューブによって内張り管を
構成することができる。そして、本発明の管の内張り工
法によれば、金属薄板製の内張りチューブを被内張り管
内に挿入してこの内張りチューブを流体圧で管状に拡開
させるだけで内張り管を構成できるから、内張リチュー
ブに硬化性樹脂を含浸させて被内張り管内に挿入し、こ
の後内張りチューブの含浸樹脂を硬化させて内張り管を
構成する従来の内張り工法に比べて短時間で能率よく被
内張り管内を内張りすることができるし、しかも内張り
チューブが金属薄板製であるために、被内張り管内に高
強度の内張り管を構成することができる。That is, the pipe lining method of the present invention is to line the inside of the lined pipe with a lining retube made of thin metal plate,
The lined retube made of thin metal sheet has an outer circumference that is approximately the same as or slightly smaller than the inner circumference of the lined tube, so the width of the lined tube when flattened is Although it is larger than the inner diameter of the lined tube, by bending the lined tube in its width direction to make the tube width smaller than the inner diameter of the lined tube, the lined retube can be inserted into the lined tube. In addition, since the above-mentioned lining tube is made of a thin metal plate, if fluid is introduced into the lining tube after inserting the lining tube into the lined pipe, this fluid pressure will expand the lining tube into a tubular shape. Because you can
1. The lined tube can be constituted by a lined tube made of thin metal plate. According to the pipe lining method of the present invention, a lined pipe can be constructed by simply inserting a lined tube made of a thin metal plate into a lined pipe and expanding this lined tube into a tubular shape using fluid pressure. Compared to the conventional lining method, which involves impregnating a retube with a hardening resin and inserting it into the lined pipe, and then curing the impregnated resin in the lined tube to construct the lined pipe, the inside of the lined pipe is lined more efficiently in a shorter time. Moreover, since the lined tube is made of a thin metal plate, a high-strength lined tube can be constructed within the lined tube.
また、本発明の管の内張りチューブは、２枚の帯状金属
薄板を重ねてこの２枚の帯状金属薄板の両側縁を溶接し
たものであるから、上記２枚の帯状金属薄板の両側縁を
溶接するだけで偏平に清された形状の内張りチューブを
製造することができ、したがってこの内張りチューブは
低コストにかつ容易に製造することができる。Furthermore, since the pipe lining tube of the present invention is made by stacking two strip-shaped thin metal plates and welding the opposite edges of the two strip-shaped thin metal plates, the two edges of the two strip-shaped thin metal plates are welded. A lined tube with a flattened shape can be manufactured by simply performing the following steps, and therefore, this lined tube can be manufactured easily and at low cost.
以下、本発明の一実施例を図面を参照して説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図〜第３図は本実施例の管の内張り工法を示したも
ので、図中１は地中に埋設された被内張り管（既設管ま
たは新設管）、２は縦坑であり、被内張り管１は縦坑２
内において切離されている。Figures 1 to 3 show the pipe lining method of this embodiment, where 1 is a lined pipe buried underground (existing pipe or new pipe), 2 is a vertical shaft, Lined pipe 1 is vertical shaft 2
It is separated within.
３は被内張り管１内に挿入されて内張り管を構成する金
属薄板製の内張りチューブである。Reference numeral 3 denotes a lined tube made of a thin metal plate that is inserted into the lined tube 1 and constitutes the lined tube.
この内張りチューブ３は、偏平に潰された形状をなしか
つ被内張り管１の内周長とほぼ同じかあるいはそれより
（Ｍｆかに小さい外周長をもつもので、この内張りチュ
ーブ３は第４図に示すように、被内張り管１の内周長の
ほぼ１／２あるいはそれより僅かに小さい幅をもちかつ
両側縁部を円弧状に彎曲させたステンレス鋼からなる２
枚の帯状金属薄板３ａ、３ａを重ね、この２枚の帯状金
属薄板３ａ、３ａの両側縁を突合せ溶接した構造となり
でいる。図中ａは２枚の帯状金属薄板３ａ、３ａの溶接
部を示している。また、この内張りチュブ３の肉厚（帯
状金属薄板３ａ、３ａの板厚）は、直径１００＋＋ｏｎ
の内張り管となるチューブの場合で約０１〜１．０ｍｍ
、直径１５００ ｍ＋ｍの内張り管となるチュブの場合
で約ｌＯ〜８ 、０ ＋＋ｏｎとされている。この内張
りチューブ３は、被内張り管１の内張り施工長さより若
干大きな長さに製作されており、またこの内張りチュー
ブ３の両端は気密状態に閉塞されている。This lined tube 3 has a flattened shape and has an outer circumference length that is approximately the same as the inner circumference length of the lined tube 1 or smaller than it (Mf). As shown in FIG. 2, a stainless steel tube 2 having a width approximately 1/2 or slightly smaller than the inner circumference of the lined tube 1 and having both side edges curved in an arc shape is shown in FIG.
It has a structure in which two strip-shaped thin metal plates 3a, 3a are stacked one on top of the other, and both side edges of the two strip-shaped thin metal plates 3a, 3a are butt welded. In the figure, a indicates a welded portion of two strip-shaped thin metal plates 3a, 3a. Moreover, the wall thickness of this lining tube 3 (thickness of the strip metal thin plates 3a, 3a) is 100++on in diameter.
Approximately 01 to 1.0 mm in the case of a tube that is lined with
, in the case of a lined tube with a diameter of 1500 m+m, it is approximately lO~8,0++on. This lining tube 3 is manufactured to have a length slightly larger than the lining length of the lined pipe 1, and both ends of the lining tube 3 are closed in an airtight state.
この内張りチューブ３は、偏平に潰された状態でリール
４に巻かれており、リール４から繰り出された後に幅方
向に屈曲され、チューブ幅を前記被内張り管１の内径よ
り小さくした状態で被内張り管１内に挿入される。The lined tube 3 is wound around a reel 4 in a flattened state, and after being unwound from the reel 4, it is bent in the width direction and wrapped with the tube width made smaller than the inner diameter of the lined tube 1. It is inserted into the lined pipe 1.
この内張りチューブ３の被内張り管１内への挿入につい
て説明すると、第１図および第４図において、５ａ、５
ｂは被内張り管１の内張りチューブ挿入側端部に対向さ
せて縦坑２内に設置された波状のローラ面をもつ上下一
対のチューブ曲げロラであり、一方のチューブ曲げロー
ラ５ａはロラ回転機構６により回転駆動され、他方のチ
ュブ曲げローラ５ｂは図示しない加圧機構によって」二
記一方のチューブ曲げローラ５ａ側に一定圧で押（＝Ｉ
けられている。そして、リール４から繰り出された内張
りチューブ３は、第１図に示すように縦坑２内から一対
のチューブ曲げローラ５ａ。To explain the insertion of the lined tube 3 into the lined tube 1, in FIGS. 1 and 4, 5a, 5
b is a pair of upper and lower tube bending rollers with wavy roller surfaces installed in the shaft 2 facing the lined tube insertion side end of the lined pipe 1; one tube bending roller 5a has a roller rotation mechanism; 6, and the other tube bending roller 5b is pressed with a constant pressure toward the one tube bending roller 5a by a pressure mechanism (not shown) (=I
I'm being kicked. The lined tube 3 unreeled from the reel 4 is passed from inside the shaft 2 to a pair of tube bending rollers 5a, as shown in FIG.
５ｂ間に通され、このチューブ曲げローラ５ａ５ｂによ
り幅方向に波打ち状態に屈曲されてチュブ幅を被内張り
管１の内径より小さくされるとともに、このチューブ曲
げローラ５ａ、５ｂで送られて第１図および第５図に示
すように被内張り管１内に挿入されて行く。なお、被内
張り管１内に入った内張りチューブ３は、その両側縁を
被内張り管１の内壁面で支えられて被内張り管１の内壁
面を滑り移動して行く。5b, the tube is bent into a wavy state in the width direction by the tube bending rollers 5a and 5b to make the tube width smaller than the inner diameter of the lined pipe 1, and is fed by the tube bending rollers 5a and 5b as shown in FIG. Then, as shown in FIG. 5, it is inserted into the lined pipe 1. The lined tube 3 that has entered the lined tube 1 slides on the inner wall surface of the lined tube 1 with its both side edges supported by the inner wall surface of the lined tube 1.
そして、内張りチューブ３を被内張り管１内の全長に挿
入した後は、第２図に示すように、内張りチューブ３の
後端にフレキシブルホース８を介］０
して送水ポンプ７を接続し、内張リチューブ３内に注水
する。After inserting the lined tube 3 over the entire length inside the lined pipe 1, as shown in FIG. 2, the water pump 7 is connected to the rear end of the lined tube 3 via a flexible hose 8. Pour water into the lining tube 3.
このように内張りチューブ３内に注水すると、内張リチ
ューブ３がその内側から水圧によって第３図および第６
図に示すように管状に拡げられ、この内張リチューブ３
がそのまま内張り管となる。When water is injected into the lining tube 3 in this way, the lining tube 3 is heated from inside by water pressure as shown in FIGS. 3 and 6.
As shown in the figure, this inner tube 3 is expanded into a tubular shape.
becomes the lined pipe.
この後は、被内張り管１の両端に突出している内張リチ
ューブ３の両端部を切断し、内張りチューブ３の両端を
開口させる。また、このようにして内壁面を内張すされ
た管１は、次の区間の被内張り管１を上記と同様にして
内張すした後に、この次区間の管１と接続管を介して接
続される。After this, both ends of the lining tube 3 protruding from both ends of the lined tube 1 are cut, and both ends of the lining tube 3 are opened. In addition, the pipe 1 whose inner wall surface has been lined in this way is lined with the next section of lined pipe 1 in the same manner as above, and then connected to the next section of pipe 1 via a connecting pipe. Connected.
すなわち、上記管の内張り工法は、金属薄板製の内張リ
チューブ３で被内張り管１内を内張りするものであり、
上記金属薄板製の内張りチューブ３は、被内張り管１の
内周長とほぼ同じかあるいはそれより僅かに小さい外周
長をもつものであるために、偏平に潰された状態での内
張リチューブ３の幅は被内張り管１の内径より大きいが
、この内張りチューブ３をその幅方向に屈曲させてチュ
ブ幅を被内張り管１の内径より小さくしてやれば、この
内張りチューブ３を被内張り管１内に挿入することがで
きる。また、」１記内張りチューブ３は金属薄板製のも
のであるために、この内張りチューブ３を被内張り管１
内に挿入した後に内張リチューブ３内に注水してやれば
、この水圧で内張りチューブ３を管状に拡開させること
ができるから、上記金属薄板製の内張りチューブ３によ
って内張り管を構成することができる。そして、上記管
の内張り工法によれば、金属≠←哄薄板製の内張リチュ
ーブ３を被内張り管１内に挿入してこの内張リチューブ
３を水圧で管状に拡開させるだけで内張り管を構成でき
るから、内張リチューブに硬化性樹脂を含浸させて被内
張り管内に挿入し、この後内張りチューブの含浸樹脂を
硬化させて内張り管を構成する従来の内張り工法に比べ
て短時間で能率よく被内張り管内を内張りすることがで
きるし、しかも内張りチューブ３がステンレス鋼からな
る金属薄板製であるために、被内張り管１内に高強度の
内張り管を構成することができる。That is, the pipe lining method described above lines the inside of the lined pipe 1 with a lining retube 3 made of thin metal plate,
The lined tube 3 made of a thin metal plate has an outer circumference that is approximately the same as or slightly smaller than the inner circumference of the lined pipe 1, so the lined tube 3 is flattened. The width of the lined tube 3 is larger than the inner diameter of the lined tube 1, but if the lined tube 3 is bent in the width direction to make the tube width smaller than the inner diameter of the lined tube 1, the lined tube 3 can be inserted into the lined tube 1. can be inserted. In addition, since the lined tube 3 described in item 1 is made of a thin metal plate, the lined tube 3 is connected to the lined tube 1.
If water is poured into the lining tube 3 after insertion, the lining tube 3 can be expanded into a tubular shape by this water pressure, so the lining tube 3 made of the thin metal plate can constitute a lining tube. According to the pipe lining method described above, the lining pipe 3 can be lined by simply inserting the lining retube 3 made of thin metal plate into the lined pipe 1 and expanding the lining retube 3 into a tubular shape using water pressure. Compared to the conventional lining method, which involves impregnating the lining tube with a hardening resin and inserting it into the pipe to be lined, and then curing the impregnated resin in the lining tube to form the lined pipe, it is faster and more efficient. The interior of the lined tube can be lined, and since the lined tube 3 is made of a thin metal plate made of stainless steel, a high-strength lined tube can be constructed within the lined tube 1.
また、上記内張りチューブ３は、２枚の帯状金属薄板３
ａ、３ａを重ねてこの２枚の帯状金属薄板３ａ、３ａの
両側縁を溶接したものであるから、上記２枚の帯状金属
薄板３ａ、３ａの両側縁を溶接するだけで偏平に潰され
た形状の内張りチュブを製造することができ、したがっ
てこの内張りチューブ３は低コストにかつ容易に製造す
ることができる。Further, the lining tube 3 is made of two strip-shaped thin metal plates 3.
A, 3a are stacked and the two strip-shaped thin metal plates 3a, 3a are welded together on both sides, so the two strip-shaped thin metal plates 3a, 3a can be flattened simply by welding the edges on both sides. The lined tube 3 can therefore be produced easily and at low cost.
なお、上記実施例では、被内張り管１内に挿入した内張
りチューブ３の拡開を水圧によって行なっているが、こ
の内張リチューブ３の拡開は空気圧によって行なっても
よい。また、上記実施例では、内張リチューブ３を幅方
向に屈曲させるチューブ曲げローラ５ａ、５ｂによって
内張りチューブ３を被内張り管１内に送り込んでいるが
、被内張り管１内への内張リチューブ３の挿入は、あら
かじめ被内張り管１内に引張りローブを通しておいてこ
のローブで内張リチューブ３を被内張り管１内に引き込
む方法によって行なったり、内張りチューブ３を自走車
により牽引して被内張り管１内に引き込む方法によって
行なってもよい。In the above embodiment, the lining tube 3 inserted into the lined pipe 1 is expanded by water pressure, but the lining tube 3 may be expanded by air pressure. Further, in the above embodiment, the lining tube 3 is fed into the lined pipe 1 by the tube bending rollers 5a and 5b that bend the lining tube 3 in the width direction. This can be done by passing a tension lobe into the lined pipe 1 in advance and using this lobe to pull the lined retube 3 into the lined pipe 1, or by pulling the lined tube 3 with a self-propelled vehicle and pulling it into the lined pipe. This may also be done by a method of pulling it into 1.
本発明の管の内張り工法は、偏平に潰された形状をなし
かつ被内張り管の内周長とほぼ同じかあるいはそれより
僅かに小さい外周長をもつ金属薄板製の内張りチューブ
を、その幅方向に屈曲させてチューブ幅を前記被内張り
管の内径より小さくした状態で前記被内張り管内に挿入
し、この後前記内張りチューブ内に流体を送入してこの
流体圧で前記内張りチューブを管状に拡開させるもので
あるから、金属薄板製の内張りチューブを被内張り管内
に挿入してこの内張りチューブを流体圧で管状に拡開さ
せるだけで内張り管を構成でき、したがって、内張リチ
ューブに硬化性樹脂を含浸させて被内張り管内に挿入し
、この後内張りチューブの含浸樹脂を硬化させて内張り
管を構成する従来の内張り工法に比べて短時間で能率よ
く被内張り管内を内張りすることができるし、しかも内
張りチューブが金属薄板製であるために、被内張り管内
に高強度の内張り管を構成することができる。In the pipe lining method of the present invention, a lined tube made of a thin metal plate, which has a flattened shape and an outer circumferential length that is approximately the same as or slightly smaller than the inner circumferential length of the lined pipe, is lined in the width direction. The tube is bent to make its width smaller than the inner diameter of the lined tube and then inserted into the lined tube, and then fluid is fed into the lined tube and the fluid pressure expands the lined tube into a tubular shape. Therefore, the lined tube can be constructed by simply inserting a lined tube made of a thin metal plate into the lined tube and expanding this lined tube into a tubular shape using fluid pressure. The interior of the lined pipe can be lined more efficiently in a shorter time compared to the conventional lining method, which involves impregnating the lined tube with resin and inserting it into the lined pipe, and then curing the impregnated resin of the lined tube to form the lined pipe. Furthermore, since the lined tube is made of a thin metal plate, a high-strength lined tube can be constructed within the lined tube.
また、本発明の管の内張リチューブは、被内張り管の内
周長のほぼ１／２あるいはそれより僅かに小さい幅の２
枚の帯状金属薄板を重ね、この２枚の帯状金属薄板の両
側縁を溶接したものであるから、上記２枚の帯状金属薄
板の両側縁を溶接するだけで偏平に潰された形状の内張
りチューブを製造することができ、したがってこの内張
りチュブは低コストにかつ容易に製造することかできる
。In addition, the pipe lining retube of the present invention has a width of approximately 1/2 of the inner peripheral length of the pipe to be lined or slightly smaller than that.
Since it is made by stacking two strip-shaped thin metal plates and welding the edges on both sides of the two strip-shaped thin metal plates, it is possible to create a flat lining tube by simply welding the edges on both sides of the two strip-shaped thin metal plates. The lined tube can therefore be manufactured at low cost and easily.
第１図〜第６図は本発明の一実施例を示したもので、第
１図〜第３図は内張り工法を示す縦断側面図、第４図お
よび第５図は第１図のＩＶ−ＩＶ線およびｖ−■線に沿
う拡大断面図、第６図は第３図のＶＩ−ＶＩ線に沿う拡
大断面図である。
１・・・被内張り管、３・・・内張りチューブ、３ａ・
・・帯状金属薄板、５ａ、５ｂ・・・チューブ曲げロー
ラ、７・・・送水ポンプ。
出願人代理人 弁理士 鈴江武彦
］ ５Figures 1 to 6 show one embodiment of the present invention, Figures 1 to 3 are vertical sectional side views showing the lining construction method, and Figures 4 and 5 are IV-IV of Figure 1. FIG. 6 is an enlarged sectional view taken along line IV and line v--■, and FIG. 6 is an enlarged sectional view taken along line VI-VI in FIG. 1... lined pipe, 3... lined tube, 3a.
...Strip metal thin plate, 5a, 5b...Tube bending roller, 7...Water pump. Applicant's agent Patent attorney Takehiko Suzue] 5
Claims (2)
る工法において、偏平に潰された形状をなしかつ前記被
内張り管の内周長とほぼ同じかあるいはそれより僅かに
小さい外周長をもつ金属薄板製の内張りチューブを、そ
の幅方向に屈曲させてチューブ幅を前記被内張り管の内
径より小さくした状態で前記被内張り管内に挿入し、こ
の後前記内張りチューブ内に流体を送入してこの流体圧
で前記内張りチューブを管状に拡開させることを特徴と
する管の内張り工法。(1) In a method of lining the inner wall surface of a lined pipe with a lined tube, a metal having a flattened shape and an outer circumference length that is approximately the same as or slightly smaller than the inner circumference length of the lined pipe. A lined tube made of a thin plate is bent in the width direction to make the tube width smaller than the inner diameter of the lined tube, and then inserted into the lined tube, and then a fluid is introduced into the lined tube. A pipe lining method characterized by expanding the lining tube into a tubular shape using fluid pressure.
の内張りチューブであって、被内張り管の内周長のほぼ
１／２あるいはそれより僅かに小さい幅の２枚の帯状金
属薄板を重ね、この２枚の帯状金属薄板の両側縁を溶接
したことを特徴とする管の内張りチューブ。(2) A lining tube for a pipe used in the pipe lining method according to claim 1, comprising two metal strips each having a width of approximately 1/2 of the inner peripheral length of the lined pipe or slightly smaller than that. A pipe lining tube characterized by stacking thin plates and welding both side edges of the two strip-shaped thin metal plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1551589A JPH02197317A (en) | 1989-01-25 | 1989-01-25 | Lining method for tube and lined tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1551589A JPH02197317A (en) | 1989-01-25 | 1989-01-25 | Lining method for tube and lined tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02197317A true JPH02197317A (en) | 1990-08-03 |
Family
ID=11890956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1551589A Pending JPH02197317A (en) | 1989-01-25 | 1989-01-25 | Lining method for tube and lined tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02197317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0639429A (en) * | 1992-07-10 | 1994-02-15 | Kawasaki Heavy Ind Ltd | Manufacture of multiplex tube |
-
1989
- 1989-01-25 JP JP1551589A patent/JPH02197317A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0639429A (en) * | 1992-07-10 | 1994-02-15 | Kawasaki Heavy Ind Ltd | Manufacture of multiplex tube |
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