JPH0218475B2 - - Google Patents
Info
- Publication number
- JPH0218475B2 JPH0218475B2 JP57004640A JP464082A JPH0218475B2 JP H0218475 B2 JPH0218475 B2 JP H0218475B2 JP 57004640 A JP57004640 A JP 57004640A JP 464082 A JP464082 A JP 464082A JP H0218475 B2 JPH0218475 B2 JP H0218475B2
- Authority
- JP
- Japan
- Prior art keywords
- fluid conduit
- tape
- split joint
- closed space
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 50
- 238000005452 bending Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、例えば都市ガス導管などの各種流体
導管における漏洩部を修繕する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for repairing leaks in various fluid conduits, such as city gas conduits.
従来から各種の漏洩修繕方法が提案されてお
り、下記(イ)ないし(ニ)項の方法が代表的なものであ
つた。
Various leakage repair methods have been proposed in the past, and the methods described in items (a) to (d) below are representative.
(イ) 第５図に示すように、ゴム製シール材０６を
有する割継手０４を流体導管０１に外嵌固着
し、漏洩部０２をシール材０４で閉塞する方
法。(a) As shown in FIG. 5, a method in which a split joint 04 having a rubber sealing material 06 is fitted onto the fluid conduit 01 and the leakage portion 02 is closed with the sealing material 04.
(ロ) 特開昭52−138572号公報に示されるように、
流体導管にシール用テープを巻付け、漏洩部を
テープで閉塞する方法。(b) As shown in Japanese Unexamined Patent Publication No. 138572/1983,
A method of wrapping sealing tape around the fluid conduit and sealing off leaks with tape.
(ハ) 特開昭55−107183号公報に示されるように、
銅線で流体導管に固定したゴム製などの当て物
によつて漏洩部を閉塞し、当て物を覆う状態で
接着剤を流体導管に塗付する方法。(c) As shown in Japanese Patent Application Laid-Open No. 55-107183,
A method in which the leak is sealed with a rubber or other padding fixed to the fluid conduit using copper wire, and adhesive is applied to the fluid conduit while covering the padding.
(ニ) 特公昭56−37479号公報や実公昭52−40434号
公報に示されるように、流体導管に割継手を外
嵌固着し、流体導管と割継手の間に形成した閉
空間にシール剤を注入し、シール剤を大気圧下
で固化させ、固化したシール剤で漏洩部を閉塞
する方法。(d) As shown in Japanese Patent Publication No. 56-37479 and Utility Model Publication No. 52-40434, a split joint is externally fitted onto a fluid conduit, and a sealant is applied to the closed space formed between the fluid conduit and the split joint. A method in which the sealant is injected, solidified under atmospheric pressure, and the solidified sealant closes the leak.
しかし、いずれの従来技術においても、殊に流
体導管の内圧が高い場合、信頼性の高いシールを
確実に実現することが困難であり、その上、漏洩
部に起因する流体導管の曲げ剛性低下を避けられ
ない欠点があつた。
However, with any of the conventional techniques, it is difficult to reliably achieve a highly reliable seal, especially when the internal pressure of the fluid conduit is high. There were unavoidable flaws.
本発明の目的は、たとえ流体導管の内圧が高く
ても、信頼性の高いシールを確実に実現でき、そ
の上、漏洩部に起因する流体導管の曲げ剛性低下
を実質的に十分に抑制できる、全体として完成さ
れた流体導管の漏洩修繕方法を提供する点にあ
る。 An object of the present invention is to reliably achieve a highly reliable seal even if the internal pressure of the fluid conduit is high, and to substantially and sufficiently suppress a decrease in the bending rigidity of the fluid conduit due to leakage parts. An object of the present invention is to provide a complete method for repairing leaks in fluid conduits.
本発明の特徴手段は、
流体導管の漏洩部を外側から薄肉硬質板で覆
い、
その薄肉硬質板と流体導管にテープ状体を巻回
積層し、
割継手を前記流体導管に外嵌固着して、前記割
継手と流体導管の間に形成した閉空間内に前記テ
ープ状体を収容すると共に、前記割継手に付設し
た導管曲げ剛性補強用部材を、前記閉空間内で前
記テープ状体の両側において前記流体導管の周方
向複数箇所に当接又は近接させ、
前記閉空間内にゴム状弾性体を液状で注入充填
し、
前記閉空間内を前記流体導管の内圧よりも高圧
に保持しながら、前記ゴム状弾性体を固化させる
ことにあり、その作用効果は次の通りである。
The characteristic means of the present invention is to cover the leakage part of the fluid conduit from the outside with a thin hard plate, wrap and laminate a tape-like body around the thin hard plate and the fluid conduit, and fix the split joint to the outside of the fluid conduit. , the tape-shaped body is accommodated in a closed space formed between the split joint and the fluid conduit, and a conduit bending rigidity reinforcing member attached to the split joint is placed on both sides of the tape-shaped body within the closed space. in contact with or near a plurality of locations in the circumferential direction of the fluid conduit, inject and fill the closed space with a rubber-like elastic body in liquid form, and maintain the inside of the closed space at a pressure higher than the internal pressure of the fluid conduit; The purpose is to solidify the rubber-like elastic body, and its effects are as follows.
(イ) 薄肉硬質板、テープ状体、ゴム状弾性体及び
割継手の協働によつて漏洩部を閉塞することに
より、たとえ流体導管の内圧が高くても、流体
圧に抗して良好なシール状態を確実に維持で
き、信頼性の高いシールを確実に実現できる。
(b) Even if the internal pressure of the fluid conduit is high, by blocking the leakage part through the cooperation of the thin hard plate, the tape-like body, the rubber-like elastic body, and the split joint, it will be able to resist the fluid pressure. The seal state can be maintained reliably and a highly reliable seal can be reliably achieved.
つまり、薄肉硬質板によつて、流体圧を分散
させて、テープ状体に加わる単位面積当りの外
力を減少させ、強固な割継手で支持されたゴム
状弾性体でテープ状体を支持させることによつ
て、流体導管の内圧が高くても、テープ状体や
ゴム状弾性体の変形を確実に抑制して、テープ
状体やゴム状弾性体によるシール作用を確実に
現出できる。 In other words, the thin hard plate disperses the fluid pressure to reduce the external force per unit area applied to the tape-shaped body, and the tape-shaped body is supported by a rubber-like elastic body supported by a strong split joint. Therefore, even if the internal pressure of the fluid conduit is high, the deformation of the tape-like body or the rubber-like elastic body can be reliably suppressed, and the sealing effect of the tape-like body or the rubber-like elastic body can be reliably exerted.
(ロ) ゴム状弾性体を固化させるに際して、閉空間
を流体導管の内圧よりも高圧に保持することに
よつて、ゴム状弾性体が液状であるためにテー
プ状体を支持していないことが原因で、テープ
状体が流体圧により伸びてシール不良が生じる
不都合な事態を確実に防止でき、このことによ
つて信頼性の高いシールを一層確実に実現でき
る。(b) When solidifying the rubber-like elastic body, by maintaining the closed space at a pressure higher than the internal pressure of the fluid conduit, it is possible to prevent the rubber-like elastic body from supporting the tape-like body because it is in a liquid state. As a result, it is possible to reliably prevent an inconvenient situation in which the tape-shaped body is expanded by fluid pressure and a seal failure occurs, and thereby a highly reliable seal can be realized even more reliably.
(ハ) 割継手を流体導管に対して、閉空間形成のた
めに弾性シール材などを介して押付けるばかり
で無く、割継手に付設した導管曲げ剛性補強用
部材を、テープ状体の両側において流体導管の
周方向複数箇所に当接又は近接させることによ
つて、流体導管に曲げ外力が作用しても、導管
曲げ剛性補強用部材と流体導管が押付けられた
状態になると、漏洩部の存在故に強度が低下し
ている流体導管部分には曲げ外力がほとんど作
用しなくなり、流体導管の破壊を確実に防止で
きる。(c) In addition to pressing the split joint against the fluid conduit via an elastic sealant to form a closed space, the conduit bending rigidity reinforcing member attached to the split joint is placed on both sides of the tape-shaped body. Even if an external bending force is applied to the fluid conduit by contacting or proximate multiple points in the circumferential direction of the fluid conduit, if the conduit bending rigidity reinforcing member and the fluid conduit are pressed against each other, the presence of a leakage portion will be prevented. Therefore, almost no external bending force acts on the portion of the fluid conduit where the strength is reduced, and breakage of the fluid conduit can be reliably prevented.
つまり、割継手を有効利用して、漏洩部に起
因する流体導管の曲げ剛性低下を実質的に十分
に抑制できる。 In other words, by effectively utilizing the split joint, it is possible to substantially sufficiently suppress a decrease in the bending rigidity of the fluid conduit due to the leakage portion.
その結果、たとえ流体導管の内圧が高くても、
信頼性の高いシールを確実に実現でき、しかも、
漏洩部に起因する流体導管の曲げ剛性低下を実質
的に無くすことを併せ実現できる、全体として完
成された流体導管の漏洩修繕方法を確立できた。
As a result, even if the internal pressure of the fluid conduit is high,
It is possible to reliably achieve a highly reliable seal, and
We were able to establish a complete leak repair method for fluid conduits that can also substantially eliminate the reduction in bending rigidity of fluid conduits caused by leaks.
次に実施例を示す。 Next, examples will be shown.
(イ) 第１図に示すように、流体導管１の漏洩部２
を外側から薄肉硬質板７で覆う。(b) As shown in Fig. 1, the leakage part 2 of the fluid conduit 1
is covered with a thin hard plate 7 from the outside.
薄肉硬質板７は、ブリキ板などのように流体
導管１に沿う形状に容易に曲げ加工できるもの
である。 The thin hard plate 7 can be easily bent into a shape along the fluid conduit 1, such as a tin plate.
(ロ) 塩化ビニルなどの耐蝕性に優れたテープ状体
８を薄肉硬質板７と流体導管１に巻回積層す
る。(b) A tape-like material 8 made of vinyl chloride or the like having excellent corrosion resistance is wound and laminated around the thin hard plate 7 and the fluid conduit 1.
この時、薄肉硬質板７が流体導管１に密着さ
れるように、テープ状体８を締付けながら巻回
する。 At this time, the tape-shaped body 8 is wound while being tightened so that the thin hard plate 7 is brought into close contact with the fluid conduit 1.
(ハ) 第２図及び第３図に示すように、割継手４を
流体導管１に外嵌固着し、割継手４と流体導管
１の間に閉空間５を、両端部がリング状弾性シ
ール材３で密封された状態で形成し、閉空間５
内にテープ状体８を収容する。(c) As shown in FIGS. 2 and 3, the split joint 4 is fitted and fixed onto the fluid conduit 1, and a closed space 5 is created between the split joint 4 and the fluid conduit 1, and both ends are sealed with ring-shaped elastic seals. Formed in a sealed state with material 3, closed space 5
A tape-like body 8 is housed inside.
また、割継手４に付設した導管曲げ剛性補強
用部材９を、閉空間５内でテープ状体８の両側
において流体導管１の周方向複数箇所に当接又
は近接させ、漏洩部２に起因する流体導管１の
曲げ剛性低下に対する補強を施す。 In addition, the conduit bending rigidity reinforcing member 9 attached to the split joint 4 is brought into contact with or close to multiple locations in the circumferential direction of the fluid conduit 1 on both sides of the tape-like body 8 in the closed space 5 to prevent leakage caused by the leakage portion 2. The fluid conduit 1 is reinforced against a decrease in bending rigidity.
(ニ) 第４図に示すように、割継手４の孔１０から
閉空間５内にゴム状弾性体６を液状で注入充填
する。(iv) As shown in FIG. 4, a rubber-like elastic body 6 is injected and filled in liquid form into the closed space 5 through the hole 10 of the split joint 4.
(ホ) 閉空間５内を流体導管１の内圧よりも高圧に
保持しながら、ゴム状弾性体６を固化し、薄肉
硬質板７、テープ状体８、ゴム状弾性体６及び
割継手４の協働によつて漏洩部２を完全に閉塞
する。(E) While maintaining the pressure in the closed space 5 higher than the internal pressure of the fluid conduit 1, the rubber-like elastic body 6 is solidified, and the thin-walled hard plate 7, the tape-like body 8, the rubber-like elastic body 6, and the split joint 4 are solidified. By working together, the leakage portion 2 is completely closed.
第１図ないし第４図は本発明の実施例を示し、
第１図，第２図及び第４図は一部切欠き側面図、
第３図は第２図の−線矢視図である。第５図
は従来例を示す一部切欠き側面図である。
１…流体導管、２…漏洩部、４…割継手、５…
閉空間、６…ゴム状弾性体、７…薄肉硬質板、８
…テープ状体、９…導管曲げ剛性補強用部材。
1 to 4 show embodiments of the present invention,
Figures 1, 2 and 4 are partially cutaway side views;
FIG. 3 is a view taken along the - line in FIG. 2. FIG. 5 is a partially cutaway side view showing a conventional example. 1... Fluid conduit, 2... Leakage part, 4... Split joint, 5...
Closed space, 6... Rubber-like elastic body, 7... Thin hard plate, 8
...Tape-shaped body, 9... Member for reinforcing conduit bending rigidity.
Claims (1)
７で覆い、 その薄肉硬質板７と流体導管１にテープ状体８
を巻回積層し、 割継手４を前記流体導管１に外嵌固着して、前
記割継手４と流体導管１の間に形成した閉空間５
内に前記テープ状体８を収容すると共に、前記割
継手４に付設した導管曲げ剛性補強用部材９を、
前記閉空間５内で前記テープ状体８の両側におい
て前記流体導管１の周方向複数箇所に当接又は近
接させ、 前記閉空間５内にゴム状弾性体６を液状で注入
充填し、 前記閉空間５内を前記流体導管１の内圧よりも
高圧に保持しながら、前記ゴム状弾性体６を固化
させる流体導管の漏洩修繕方法。[Scope of Claims] 1. The leakage part 2 of the fluid conduit 1 is covered from the outside with a thin hard plate 7, and a tape-like body 8 is attached to the thin hard plate 7 and the fluid conduit 1.
A closed space 5 is formed between the split joint 4 and the fluid conduit 1 by winding and stacking the split joint 4 and fixing the split joint 4 to the fluid conduit 1.
The tape-shaped body 8 is accommodated therein, and the conduit bending rigidity reinforcing member 9 attached to the split joint 4 is
In the closed space 5, both sides of the tape-like body 8 are brought into contact with or close to a plurality of locations in the circumferential direction of the fluid conduit 1, and a rubber-like elastic body 6 is injected and filled in liquid form into the closed space 5, A leakage repair method for a fluid conduit in which the rubber-like elastic body 6 is solidified while maintaining the pressure in the space 5 at a pressure higher than the internal pressure of the fluid conduit 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57004640A JPS58124893A (en) | 1982-01-14 | 1982-01-14 | Method of repairing leakage of fluid conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57004640A JPS58124893A (en) | 1982-01-14 | 1982-01-14 | Method of repairing leakage of fluid conduit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58124893A JPS58124893A (en) | 1983-07-25 |
| JPH0218475B2 true JPH0218475B2 (en) | 1990-04-25 |
Family
ID=11589580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57004640A Granted JPS58124893A (en) | 1982-01-14 | 1982-01-14 | Method of repairing leakage of fluid conduit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58124893A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164891A (en) * | 1987-12-18 | 1989-06-28 | Hakko Co Ltd | Method of external surface repair construction of underground laying pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240434U (en) * | 1975-09-16 | 1977-03-23 | ||
| JPS52138572A (en) * | 1976-05-14 | 1977-11-18 | Toho Denki Kougiyou Kk | Method of repairing pipe made of thermoplastic synthetic resin |
| JPS55107183A (en) * | 1979-02-08 | 1980-08-16 | Kajima Corp | Repair of copper tube in construction facility |
| JPS5637479A (en) * | 1979-09-04 | 1981-04-11 | Soyuzny Z Mekh Khim Ochistke K | Method and device for drying loose substance |
-
1982
- 1982-01-14 JP JP57004640A patent/JPS58124893A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240434U (en) * | 1975-09-16 | 1977-03-23 | ||
| JPS52138572A (en) * | 1976-05-14 | 1977-11-18 | Toho Denki Kougiyou Kk | Method of repairing pipe made of thermoplastic synthetic resin |
| JPS55107183A (en) * | 1979-02-08 | 1980-08-16 | Kajima Corp | Repair of copper tube in construction facility |
| JPS5637479A (en) * | 1979-09-04 | 1981-04-11 | Soyuzny Z Mekh Khim Ochistke K | Method and device for drying loose substance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58124893A (en) | 1983-07-25 |
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