CN200952623Y - Corrosion resisting metal corrugated pipe expansion joint - Google Patents
Corrosion resisting metal corrugated pipe expansion joint Download PDFInfo
- Publication number
- CN200952623Y CN200952623Y CN 200620127865 CN200620127865U CN200952623Y CN 200952623 Y CN200952623 Y CN 200952623Y CN 200620127865 CN200620127865 CN 200620127865 CN 200620127865 U CN200620127865 U CN 200620127865U CN 200952623 Y CN200952623 Y CN 200952623Y
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- corrugated pipe
- ripple
- pipe expansion
- bellows
- 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
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Abstract
The utility model provides an expansion joint of anti-corrosion metal ripple pipes, which comprises a metal ripple pipe and a flange arranged at the two ends of the ripple pipe separately. The inner surfaces of the ripple pipe and connection flanges are coated with fluoroplastic. The utility model sprays fluoroplastic on the blurred inner surfaces of the expansion joint of anti-corrosion metal ripple pipes, which, after high-temperature agglomeration and solidification, forms a fluoroplastic coating resisting media such as strong acid and alkali on the inner surfaces of ripple pipes and the flanges at the two ends, thus greatly enhancing the service life of the expansion joint of anti-corrosion metal ripple pipes.
Description
Technical field
The utility model relates to metal corrugated pipe expansion joint, is specifically related to a kind of corrosion resistant metal corrugated pipe expansion joint.
Background technique
Mechanism by way of compensation, metal corrugated pipe expansion joint is usually used in carrying in the rigid line of various media.For using at the stronger relatively acid of corrosivity, the bellows expansion joint in the alkaline media, under the situation of using common material, because the corrosive action of medium, bellows produces corrosion, loses efficacy in a short period of time and destroys.In order to prolong the working life of metal corrugated pipe expansion joint, often adopt high performance alloy material, but price is very expensive.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of and can effectively improve the metal corrugated pipe expansion joint corrosion resistant metal bellows expansion joint in working life.
The technological scheme that realizes above-mentioned purpose is: a kind of corrosion resistant metal bellows expansion joint, it includes metal bellows and places the adpting flange at bellows two ends, is provided with plastic coating of fluoride at the internal surface of bellows and adpting flange.
The utility model is at the internal surface spraying plastic coating of fluoride of the metal corrugated pipe expansion joint of handling through hacking, solidify through high temperature sintering, the internal surface of the adpting flange at bellows and two ends form one deck adhesion splendid, have the plastic coating of fluoride of dielectric corrosion performances such as very high anti-strong acid, highly basic, and effectively improved the working life of metal corrugated pipe expansion joint.
Description of drawings
Accompanying drawing is this corrosion resistant metal bellows expansion joint structural representation.
Embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is described.
As accompanying drawing, this corrosion resistant metal bellows expansion joint includes the metal bellows 1 of multilayer suit, is welded with adpting flange 2 respectively at the two ends of bellows 1, is provided with plastic coating of fluoride 3 at the internal surface of bellows 1 and adpting flange 2.
Plastic coating of fluoride of the present utility model can be polyfluorinated ethylene, polyvinylidene fluoride or be the soluble polytetrafluorethylecoatings coatings.
Claims (1)
1, a kind of corrosion resistant metal bellows expansion joint includes metal bellows (1) and places the adpting flange (2) at bellows two ends, and it is characterized in that: the internal surface at bellows and adpting flange is provided with plastic coating of fluoride (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127865 CN200952623Y (en) | 2006-10-10 | 2006-10-10 | Corrosion resisting metal corrugated pipe expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127865 CN200952623Y (en) | 2006-10-10 | 2006-10-10 | Corrosion resisting metal corrugated pipe expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200952623Y true CN200952623Y (en) | 2007-09-26 |
Family
ID=38810924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620127865 Expired - Lifetime CN200952623Y (en) | 2006-10-10 | 2006-10-10 | Corrosion resisting metal corrugated pipe expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200952623Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410423A (en) * | 2011-08-15 | 2012-04-11 | 秦皇岛北方管业有限公司 | Fluoroplastic metal pipeline compensator with corrosion resistance and preparation method thereof |
| CN103602342A (en) * | 2013-11-14 | 2014-02-26 | 中冶东方工程技术有限公司 | Charging equipment in shaft kiln system of coal chemical industry and charging method |
| CN104565680A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Anticorrosion waxing-preventive composite pipe and manufacturing method thereof |
-
2006
- 2006-10-10 CN CN 200620127865 patent/CN200952623Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410423A (en) * | 2011-08-15 | 2012-04-11 | 秦皇岛北方管业有限公司 | Fluoroplastic metal pipeline compensator with corrosion resistance and preparation method thereof |
| CN102410423B (en) * | 2011-08-15 | 2013-05-08 | 秦皇岛北方管业有限公司 | Fluoroplastic metal pipeline compensator with corrosion resistance and preparation method thereof |
| CN104565680A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Anticorrosion waxing-preventive composite pipe and manufacturing method thereof |
| CN103602342A (en) * | 2013-11-14 | 2014-02-26 | 中冶东方工程技术有限公司 | Charging equipment in shaft kiln system of coal chemical industry and charging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070926 |
|
| EXPY | Termination of patent right or utility model |