CN201535414U - Special-purpose anticorrosion type corrugated pipe compensator - Google Patents
Special-purpose anticorrosion type corrugated pipe compensator Download PDFInfo
- Publication number
- CN201535414U CN201535414U CN2009202350042U CN200920235004U CN201535414U CN 201535414 U CN201535414 U CN 201535414U CN 2009202350042 U CN2009202350042 U CN 2009202350042U CN 200920235004 U CN200920235004 U CN 200920235004U CN 201535414 U CN201535414 U CN 201535414U
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- layer
- bellows
- corrugated pipe
- special
- flange
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- Diaphragms And Bellows (AREA)
Abstract
The utility model provides a special-purpose anticorrosion type corrugated pipe compensator which comprises a corrugated pipe and a joint pipe having composite structure. The external layer of the corrugated pipe is a stainless steel layer, the middle layer is a carbon steel layer and the inner layer is an anticorrosion layer, a cavity arranged between the corrugated pipe and the joint pipe is provided with an insulation layer. The corrugated pipe connects with the joint pipe through a flange, the anticorrosion layer is made of polyurea, a whole of the inner surface of the carbon steel layer to a sealing surface of the flange is provided with polyurea; the joint pipe is provided with a coaxial and intertwined guide cylinder in the axial direction. The special-purpose anticorrosion type corrugated pipe compensator has strong anticorrosion and anti-aging properties, low cost and can prolong the service life greatly.
Description
Technical field
The utility model relates to corrugated expansion joint, relates in particular to the corrosion-proof type corrugated expansion joint.
Background technique
Axial or the lateral displacement that corrugated expansion joint energy extraction duct produces because of expanding with heat and contract with cold is widely used in the engineering.Under some ambient condition, the etching problem of bellows is very serious, comes the blast furnace gas of dry method dust, flue gas system of petrochemical industry etc. as metallurgy is capable.For increasing the working life of compensator in this class pipe-line system, just need select for use good material to come processing and fabricating, as nickel-base alloys such as Inconel800 and Inconel825, so just increased cost, nonetheless, the phenomenon that the corrosion cracking problem promptly takes place after using half a year waved elements happens occasionally, and can not satisfy requirement of engineering.Various metallic material (as 304,321,316L, 825,800,625 and 08F etc.) all have the different corrosion of degree, or even spot corrosion penetrates, product is received very big influence working life.A lot of nonmetallic material have resistance to corrosion and ageing resistance preferably, as fluorine glue and teflon etc.But because the bellows structure form is special, the compensator specification is bigger again, and the technology of liner nonmetallic material is difficult to implement.
The model utility content
The utility model provides a kind of resistance to corrosion and ageing-resistant performance strong and special anticorrosive type corrugated expansion joint with low cost at above-mentioned the deficiencies in the prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
Special anticorrosive type corrugated expansion joint comprises the bellows of composite structure, bellows with about two adaptor tubes be connected, the bellows skin is a stainless steel lining, the mesosphere is the carbon steel layer, internal layer is an anticorrosive coat, the cavity between bellows and the adaptor tube is provided with thermal insulation layer.
Further, bellows is connected with adaptor tube by flange, and the anticorrosive coat material is a polyureas, and the sealing surface of flange is coated with described polyureas; Adaptor tube is axially arranged with coaxial, interlaced two guide shells.
Technique effect of the present utility model is:
Bellows adopts composite structure, and is with low cost; Bellows adopts form of flanges to be connected with adaptor tube, help polyureas being arranged in carbon steel layer internal surface to integral body between the sealing surface of flange, stopped the metal layer of hazardous medium contact bellows in the pipeline, resistance to corrosion and ageing-resistant performance are strong and with low cost, can increase the service life significantly.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and part is analysed and observe among the figure;
Fig. 2 is the enlarged view of bellows composite structure, the composite structure of the ripple that only draws among the figure.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
As shown in Figure 1, the utility model comprises bellows 6 and adaptor tube 11, and bellows 6 two ends are welded with flange 4, and flange 4 is connected with flange 3 by bolt 2 and nut 5, and flange 3 is welded to connect with adaptor tube 11, and 11 of flange 3 and adaptor tubes are welded with strengthens gusset 1.Be filled with thermal insulation layer 7 in the cavity between bellows 6 and the adaptor tube 11, adaptor tube 11 is axially arranged with coaxial, interlaced guide shell 8 and guide shell 9, and guide shell 8, guide shell 9 can and make it as far as possible away from bellows 6 to hazardous medium guiding in the pipeline.See Fig. 1, Fig. 2, bellows 6 is a composite structure, and skin is a stainless steel lining 12, and the mesosphere is a carbon steel layer 13, and internal layer is an anticorrosive coat 14.
Carbon steel layer of the present utility model 13 adopts the insensitive 08F class of chlorion carbon steel, has protected easily by the stainless steel lining 12 of chloride ion corrosion, and stainless steel lining 12 is as long as 300 higher series stainless steels of employing cost performance have been saved cost like this; Anticorrosive coat 14 materials are polyureas; have high resistance to corrosion and ageing resistance; protected the metal layer of bellows 11; because bellows 6 adopts form of flanges to be connected with adaptor tube 11; can be on the sealing surface 10 of flange 3 spray polyurea; so make carbon steel layer 13 internal surface to sealing surface 10 integral body of flange 3 that polyureas is arranged, so just stopped the metal layer of hazardous medium contact bellows 11 in the pipeline, prolonged working life significantly.
Claims (3)
1. special anticorrosive type corrugated expansion joint, the bellows (6) that comprises composite structure, bellows (6) with about two adaptor tubes (11) be connected, it is characterized in that bellows (6) skin is stainless steel lining (12), the mesosphere is carbon steel layer (13), internal layer is anticorrosive coat (14), and the cavity between bellows (6) and the adaptor tube (11) is provided with thermal insulation layer (7).
2. special anticorrosive type corrugated expansion joint according to claim 1, it is characterized in that bellows (6) is connected with adaptor tube (11) with flange (4) by flange (3), anticorrosive coat (14) material is a polyureas, and the sealing surface (10) of flange (3) is coated with described polyureas.
3. special anticorrosive type corrugated expansion joint according to claim 1 and 2 is characterized in that adaptor tube (11) is axially arranged with coaxial, interlaced guide shell (8) and guide shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202350042U CN201535414U (en) | 2009-08-18 | 2009-08-18 | Special-purpose anticorrosion type corrugated pipe compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202350042U CN201535414U (en) | 2009-08-18 | 2009-08-18 | Special-purpose anticorrosion type corrugated pipe compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535414U true CN201535414U (en) | 2010-07-28 |
Family
ID=42535193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202350042U Expired - Fee Related CN201535414U (en) | 2009-08-18 | 2009-08-18 | Special-purpose anticorrosion type corrugated pipe compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195509A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | Hinge type compensator |
| CN107246515A (en) * | 2017-08-11 | 2017-10-13 | 南通市扬子橡塑有限公司 | A kind of ripple pipe clip valve of dynamic sealing |
-
2009
- 2009-08-18 CN CN2009202350042U patent/CN201535414U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195509A (en) * | 2016-08-30 | 2016-12-07 | 无锡金龙石化冶金设备制造有限公司 | Hinge type compensator |
| CN106195509B (en) * | 2016-08-30 | 2019-02-22 | 无锡金龙石化冶金设备制造有限公司 | Hinge type compensator |
| CN107246515A (en) * | 2017-08-11 | 2017-10-13 | 南通市扬子橡塑有限公司 | A kind of ripple pipe clip valve of dynamic sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI JINLONG PETROCHEMICAL AND METALLURGICAL EQUIP Free format text: FORMER OWNER: WUXI GOLDEN DRAGON COMPENSATOR CO., LTD. Effective date: 20110527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214161 NO. 23, ZHENHU ROAD, HUDAI TOWN, BINHU DISTRICT, WUXI CITY, JIANGSU PROVINCE TO: 214000 NO. 18, HUDAI ROAD, HUDAI TOWN, BINHU DISTRICT, WUXI CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110527 Address after: 214000 lakes in Jiangsu province Wuxi City foreshore Hu Dai Zhen Hu Dai Road No. 18 Patentee after: Wuxi Jinlong Petrochemical & Metallurgical Equipment Co., Ltd. Address before: 214161 lakes in Jiangsu province Wuxi City foreshore Zhen Hu Hudai Town Road No. 23 Patentee before: Wuxi Jinlong Compensator Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20170818 |