CN2319666Y - Corrugated expansion joint - Google Patents
Corrugated expansion joint Download PDFInfo
- Publication number
- CN2319666Y CN2319666Y CN 97251453 CN97251453U CN2319666Y CN 2319666 Y CN2319666 Y CN 2319666Y CN 97251453 CN97251453 CN 97251453 CN 97251453 U CN97251453 U CN 97251453U CN 2319666 Y CN2319666 Y CN 2319666Y
- Authority
- CN
- China
- Prior art keywords
- corrosive
- layers
- bellows
- anticorrosive coat
- corrugated
- 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 - Fee Related
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Abstract
The utility model relates to a corrugated compensator with an inner anti-corrosive layer, which comprises a corrugated pipe and an end flange connected with the corrugated pipe through a connecting pipe. The corrugated compensator with an inner anti-corrosive layer is characterized in that the most inner layer of the corrugated pipe and the rest layers of the corrugated pipe are anti-corrosive layers which are formed simultaneously. Filling materials of welded seams among the anti-corrosive layers and the connecting pipe are the same as those of the anti-corrosive layers. The utility model has the advantages of simple structure, easy fabrication and anti-corrosive material saving. When corrosive media is conveyed, the anti-corrosive capacity can be effectively improved and the service life can be effectively extended.
Description
The utility model relates to the compensation device that a kind of pipe-line system or pipe network are used, the FlexbleJoint of anticorrosive coat in particularly a kind of having.
At present, every place that pipeline is arranged, in pipe-line systems such as metallurgy, petrochemical industry, thermoelectricity, heating, water supply, gas installation or pipe network, compensator has become its indispensable compensating element.Traditional compensator has " " shape tension force joint, stuffing box expansion joint.The former compensation ability is little, and volume is big, has increased the installation occupation space; The latter mainly relies on the stuffing box packing sealing, and its sealability is relatively poor, easily leaks, and should not work under the higher temperature operating mode.These two kinds of compensating element poor flexibility require highly to installation precision, if bad to neutrality when installing, then can produce very big Installation Stress, cause pipeline break or leakage.At above-mentioned shortcoming, now begun to adopt bellows device formation FlexbleJoint by way of compensation, this advanced person's pipeline compensator has overcome many defectives that prior art exists, and has tangible advantage.Therefore, FlexbleJoint has obtained wide popularization and application.Existing FlexbleJoint can be processed into various structural types according to the applying working condition difference.Because the core parts bellows that adopts stainless steel material to make in the FlexbleJoint when carrying the higher medium of chloride ion content or other that stainless steel is had the strong corrosive medium of corrosive action, is vulnerable to corrosion most.Serious corrosion can make FlexbleJoint lose efficacy.In a single day FlexbleJoint installs, and does not all allow frequent replacing.Therefore, be necessary to improve anti-corrosion protection to FlexbleJoint.
The purpose of this utility model provides the FlexbleJoint of anticorrosive coat in a kind of having, and it is simple in structure, easy to manufacture, saves anti-corrosion material, when carrying aggressive medium, can effectively improve antiseptic power and working life.
The purpose of this utility model is achieved in that this device comprises bellows and passes through to take over connected end flange, wherein the bellows innermost layer is the anticorrosive coat with the moulding simultaneously of all the other each layers, and anticorrosive coat is identical with the anticorrosive coat material with weld seam filler between the adapter.
Because the utility model adopts multiply bellows, innermost layer is the strong sheet material of corrosion resistance, and be shaped simultaneously with all the other each layers, so whole bellows also just has strong antiseptic property, in addition, the weld seam filler is also identical with the anticorrosive coat material between anti-genus layer and the adapter, effectively prevent to destroy the corrosion resistance of bellows, avoid bellows because of the weld joint corrosion failure because of the weld joint corrosion, and FlexbleJoint was lost efficacy, thereby improve its antiseptic power and working life.Because of this device only needs to set up anticorrosive coat at the bellows internal layer, all the other still adopt existing structure, so simple in structure, easy to manufacture, saving anti-corrosion material, also improved simultaneously the anti-corrosion capability of the conveying aggressive medium of FlexbleJoint, remove FlexbleJoint and jeopardize the burden at heart of personal safety and equipment accident, the sense of security that increase equipment uses because of corrosion failure.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a kind of concrete structure schematic representation of the present utility model.
Describe concrete structure of the present utility model in detail according to Fig. 1.This device comprise adopt the anti-corrosion material manufacturing or through antiseptic end flange 1, take over 2, the parts such as bellows 3 of multi-layer structure.Wherein bellows 3 innermost layers are the anticorrosive coat 4 with the moulding simultaneously of all the other each layers, to strengthen the corrosion resistance of bellows 3 internal layers.For preventing bellows 3 from the weld joint corrosion, when adopting the argon arc welding welding, weld seam filler 5 should adopt and the identical material of anticorrosive coat 4 materials between anticorrosive coat 4 and the adapter 2.The structural type of bellows 3 can be selected shapes such as U-shaped, Ω shape, S shape, V-arrangement according to designing requirement for use.End flange 1 should be determined according to concrete fed sheet of a media and applying working condition with the preservative treatment of taking over 2, make it consistent with the requirement for anticorrosion of bellows 3.
Claims (1)
1, the FlexbleJoint of anticorrosive coat in a kind of having, comprise bellows and pass through to take over connected end flange, it is characterized in that the bellows innermost layer for the anticorrosive coat of all the other each layers moulding simultaneously, the weld seam filler is identical with the anticorrosive coat material between anticorrosive coat and the adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97251453 CN2319666Y (en) | 1997-12-30 | 1997-12-30 | Corrugated expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97251453 CN2319666Y (en) | 1997-12-30 | 1997-12-30 | Corrugated expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319666Y true CN2319666Y (en) | 1999-05-19 |
Family
ID=33957582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97251453 Expired - Fee Related CN2319666Y (en) | 1997-12-30 | 1997-12-30 | Corrugated expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319666Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620098A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Novel fiber expansion joint |
| CN102829280A (en) * | 2012-08-24 | 2012-12-19 | 秦皇岛北方管业有限公司 | Compound expansion joint capable of resisting strong corrosive medium and preparation method |
| CN109915666A (en) * | 2019-04-16 | 2019-06-21 | 无锡金龙石化冶金设备制造有限公司 | A kind of multilayer corrugated pipe and the connection structure of adapter tube and attaching method thereof |
| CN111219549A (en) * | 2020-04-07 | 2020-06-02 | 王德明 | Special metal corrugated connecting pipe for fire fighting |
| CN111986950A (en) * | 2020-07-08 | 2020-11-24 | 平高集团有限公司 | Bellows subassembly, vacuum interrupter and vacuum circuit breaker for vacuum interrupter |
-
1997
- 1997-12-30 CN CN 97251453 patent/CN2319666Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620098A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Novel fiber expansion joint |
| CN102829280A (en) * | 2012-08-24 | 2012-12-19 | 秦皇岛北方管业有限公司 | Compound expansion joint capable of resisting strong corrosive medium and preparation method |
| CN102829280B (en) * | 2012-08-24 | 2015-02-04 | 秦皇岛北方管业有限公司 | Compound expansion joint capable of resisting strong corrosive medium and preparation method |
| CN109915666A (en) * | 2019-04-16 | 2019-06-21 | 无锡金龙石化冶金设备制造有限公司 | A kind of multilayer corrugated pipe and the connection structure of adapter tube and attaching method thereof |
| CN109915666B (en) * | 2019-04-16 | 2023-11-17 | 无锡金龙石化冶金设备制造有限公司 | Connection structure and connection method of multilayer corrugated pipe and connecting pipe |
| CN111219549A (en) * | 2020-04-07 | 2020-06-02 | 王德明 | Special metal corrugated connecting pipe for fire fighting |
| CN111986950A (en) * | 2020-07-08 | 2020-11-24 | 平高集团有限公司 | Bellows subassembly, vacuum interrupter and vacuum circuit breaker for vacuum interrupter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |