JPH0456786A - Method and structure for preventing corrosion of pipe - Google Patents
Method and structure for preventing corrosion of pipeInfo
- Publication number
- JPH0456786A JPH0456786A JP16288690A JP16288690A JPH0456786A JP H0456786 A JPH0456786 A JP H0456786A JP 16288690 A JP16288690 A JP 16288690A JP 16288690 A JP16288690 A JP 16288690A JP H0456786 A JPH0456786 A JP H0456786A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- tape
- pipes
- gap
- outsides
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 50
- 230000007797 corrosion Effects 0.000 title claims abstract description 19
- 230000003405 preventing effect Effects 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000006260 foam Substances 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 229940038692 petrolatum paste Drugs 0.000 abstract description 5
- 238000005187 foaming Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000004264 Petrolatum Substances 0.000 description 4
- 229940066842 petrolatum Drugs 0.000 description 4
- 235000019271 petrolatum Nutrition 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229940112824 paste Drugs 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、配管の防食方法及び配管の防食構造にかか
わり、更に詳しくは施工が容易で、かつ防食効果を長期
間にわたって維持出来る配管の防食方法及び配管の防食
構造に関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for preventing corrosion of piping and a structure for preventing corrosion of piping. The present invention relates to a method and anti-corrosion structure of piping.
従来、橋梁下に配設する配管を防食させる場合、配管同
志に間隙が少ない場合、塗装作業により防食をおこなっ
ている。Conventionally, when pipes installed under a bridge are protected from corrosion and there are few gaps between the pipes, corrosion protection is carried out by painting.
然し乍ら、下地の処理が非常に難しく、また塗装の防食
構造では、短期間に錆が発生すると言う問題があった。However, it is very difficult to treat the base, and the anti-corrosion structure of the coating has the problem of rust occurring in a short period of time.
また、下地処理が低グレードでも、長期耐食性を有する
ものとして、重防食用ペトロラタム系防食材があるが、
ペーストは塗布できてもテープ施工ができず、耐久性に
問題があった。In addition, heavy-duty petrolatum-based anticorrosive materials have long-term corrosion resistance even with low-grade surface treatment.
Even if the paste could be applied, it could not be applied with tape, and there were problems with durability.
この発明は、かかる従来の問題点に着目して案出された
もので、簡単な施工作業により配管の防食ができ、防食
効果を長期間にわたって維持することが出来ると共に、
軽量で橋梁下の配管に有効な配管の防食方法及び配管の
防食構造を提供することを目的とするものである。This invention was devised by focusing on such conventional problems, and it is possible to prevent corrosion of piping with simple construction work, maintain the corrosion protection effect for a long period of time, and
The object of the present invention is to provide a method for preventing corrosion of piping and a structure for preventing corrosion of piping that is lightweight and effective for piping under bridges.
この発明は上記目的を達成するため、防食材を塗布した
複数本の配管を防食テープを巻付て被覆し、この防食テ
ープと配管の外周面との間隙に、ウレタン発泡体を充填
して構成したことを要旨とするものである。In order to achieve the above object, this invention is constructed by wrapping a plurality of pipes coated with anti-corrosion tape with anti-corrosion tape, and filling the gap between the anti-corrosion tape and the outer peripheral surface of the pipes with urethane foam. This is a summary of what was done.
この発明は、上記のように構成され、防食材を塗布した
配管を、複数本纏めた状態で、その外周面に防食テープ
を巻付け、前記防食テープの一部に注入口を形成した後
、この注入口から、配管の外周面と防食テープとの間隙
にウレタン発泡体を注入することにより、配管の防食作
業を簡単に行なうことが出来、長期間にわたって防食効
果を維持することが出来るものである。In the present invention, a plurality of pipes configured as described above and coated with anti-corrosion are bundled together, an anti-corrosion tape is wrapped around the outer peripheral surface of the pipe, an injection port is formed in a part of the anti-corrosion tape, and then, By injecting the urethane foam into the gap between the outer circumferential surface of the pipe and the anticorrosion tape through this injection port, corrosion protection work on the pipe can be easily performed and the anticorrosion effect can be maintained for a long period of time. be.
以下添付図面に基いて、この発明の詳細な説明する。 The present invention will be described in detail below based on the accompanying drawings.
第１図は、この発明を実施した配管の防食構造の断面図
を示し、１は４本まとめた配管、２は配管１の外周面に
塗布した重防食ペトロラタムペースト等の防食材、３は
防食テープ、４は防食テープ３と配管ｌとの間隙５に充
填されたウレタン発泡体を示している。FIG. 1 shows a cross-sectional view of the anti-corrosion structure of the piping according to the present invention, in which numeral 1 indicates four pipes together, numeral 2 shows anti-corrosion protection such as heavy duty anti-corrosion petrolatum paste applied to the outer peripheral surface of the pipe 1, and numeral 3 indicates anti-corrosion. A tape 4 indicates a urethane foam filled in a gap 5 between the anticorrosive tape 3 and the pipe 1.
上記のような配管１の防食方法としては、まず配管１を
、３種ケレン程度となるように下地処理を行い、その配
管１の外周面に重防食ペトロラタムペースト等の防食材
２を塗布する。As a method for preventing corrosion of the piping 1 as described above, first, the piping 1 is subjected to surface treatment so as to have a grade 3 stain, and the outer peripheral surface of the piping 1 is coated with anti-corrosion 2 such as heavy anti-corrosion petrolatum paste.
その後、図のように配管ｌを４本纏めて、その外周面に
防食テープ３を螺旋状に巻付る。Thereafter, as shown in the figure, the four pipes 1 are gathered together, and the anticorrosive tape 3 is spirally wrapped around the outer peripheral surface of the pipes 1.
防食チー１３としては、不織布に、防食材としてペトロ
ラタムコンパウンドを含浸させたペトロラタムテープ、
プラスチックテープ等を使用するが、ペトロラタムペー
ストを溶かす成分が入っている場合には、プラスチック
フィルムで遮断する必要がある。Anti-corrosion tape 13 includes petrolatum tape made of non-woven fabric impregnated with petrolatum compound as an anti-corrosion agent;
Plastic tape is used, but if it contains ingredients that dissolve petrolatum paste, it is necessary to block it with a plastic film.
このようにして構成した配管１と防食テープ３との間隙
５に、防食テープ３の一部に注入口（図示せず）を形成
して、この注入口から前記発泡用ウレタンを現場にて注
入して発泡させる。An injection port (not shown) is formed in a part of the anti-corrosion tape 3 in the gap 5 between the pipe 1 and the anti-corrosion tape 3 configured in this way, and the foaming urethane is injected from this injection port on-site. and foam it.
前記注入口は、配管１の長さにもよるが、−定の間隔で
複数個所に形成し、この場所から適宜間隙が充填される
ように発泡用ウレタンを注入して発泡させ環境遮断を行
なうのである。The injection ports are formed at a plurality of locations at regular intervals, depending on the length of the pipe 1, and foaming urethane is injected from these locations so as to fill the gaps appropriately, causing foaming and environmental isolation. It is.
以上のような方法により施工することで、簡単な下地処
理で充分な防食性能を発揮でき、ペトロラタム系防食材
の特性を有効に発揮させて配管１の防食を行なうことが
出来る。By applying the method as described above, sufficient anti-corrosion performance can be exhibited with simple surface treatment, and the characteristics of the petrolatum-based anti-corrosion material can be effectively exhibited to protect the piping 1 from corrosion.
この発明は、上記のように構成したので、以下のような
優れた効果を奏するものである。Since the present invention is configured as described above, it has the following excellent effects.
（ａ）、防食効果を長期間にわたって維持することが出
来る。(a) The anticorrosion effect can be maintained for a long period of time.
（ｂ）、防食材の総合重量が軽くなり、橋梁下の配管防
食には有効である。(b) The overall weight of the anti-corrosion material is reduced, making it effective for anti-corrosion of piping under bridges.
（Ｃ）、施工を簡単に行なうことが出来る。(C) Construction can be easily performed.
第１図は、この発明を実施した配管の防食構造の断面図
である。
１・・・配管、２・・・重防食ペトロラタムペースト等
の防食材、３・・・防食テープ、４・・・ウレタン発泡
体、５・・・間隙。FIG. 1 is a sectional view of a corrosion-protective structure for piping according to the present invention. DESCRIPTION OF SYMBOLS 1... Piping, 2... Anti-corrosion such as heavy anti-corrosion petrolatum paste, 3... Anti-corrosion tape, 4... Urethane foam, 5... Gap.
Claims (2)
の外周面に防食テープを巻付け、前記防食テープの一部
に注入口を形成した後、この注入口から、配管の外周面
と防食テープとの間隙にウレタン発泡体を注入すること
を特徴とする配管の防食方法。1. A plurality of pipes coated with anti-corrosion coating are bundled together, an anti-corrosion tape is wrapped around the outer circumferential surface of the pipe, and an injection port is formed in a part of the anti-corrosion tape. A method for preventing corrosion of piping, characterized by injecting urethane foam into the gap between the tape and the tape.
て被覆し、この防食テープと配管の外周面との間隙に、
ウレタン発泡体を充填して構成したことを特徴とする配
管の防食構造。2. Multiple pipes coated with anti-corrosion coating are covered with anti-corrosion tape, and in the gap between the anti-corrosion tape and the outer circumferential surface of the pipes,
A corrosion-resistant structure for piping characterized by being filled with urethane foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16288690A JPH0456786A (en) | 1990-06-22 | 1990-06-22 | Method and structure for preventing corrosion of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16288690A JPH0456786A (en) | 1990-06-22 | 1990-06-22 | Method and structure for preventing corrosion of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0456786A true JPH0456786A (en) | 1992-02-24 |
Family
ID=15763126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16288690A Pending JPH0456786A (en) | 1990-06-22 | 1990-06-22 | Method and structure for preventing corrosion of pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0456786A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212766A (en) * | 2001-01-16 | 2002-07-31 | Japan Steel & Tube Constr Co Ltd | Apparatus for corrosion prevention processing of wall penetrating steel pipe part |
| JP2011246775A (en) * | 2010-05-28 | 2011-12-08 | Inoac Tokuzai Kk | Rust prevention method for hollow steel material |
| JP2015017745A (en) * | 2013-07-10 | 2015-01-29 | マキノ電機工業株式会社 | Corrosion prevention method for copper pipe of heat transfer equipment, and heat exchanger and heat transfer equipment, subjected to corrosion prevention by the method |
-
1990
- 1990-06-22 JP JP16288690A patent/JPH0456786A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212766A (en) * | 2001-01-16 | 2002-07-31 | Japan Steel & Tube Constr Co Ltd | Apparatus for corrosion prevention processing of wall penetrating steel pipe part |
| JP2011246775A (en) * | 2010-05-28 | 2011-12-08 | Inoac Tokuzai Kk | Rust prevention method for hollow steel material |
| JP2015017745A (en) * | 2013-07-10 | 2015-01-29 | マキノ電機工業株式会社 | Corrosion prevention method for copper pipe of heat transfer equipment, and heat exchanger and heat transfer equipment, subjected to corrosion prevention by the method |
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