CN201787274U - Composite coated anti-corrosion steel pipe - Google Patents
Composite coated anti-corrosion steel pipe Download PDFInfo
- Publication number
- CN201787274U CN201787274U CN2010205537369U CN201020553736U CN201787274U CN 201787274 U CN201787274 U CN 201787274U CN 2010205537369 U CN2010205537369 U CN 2010205537369U CN 201020553736 U CN201020553736 U CN 201020553736U CN 201787274 U CN201787274 U CN 201787274U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- coating
- corrosion
- coated
- polyethylene
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 title claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 33
- 238000000576 coating method Methods 0.000 claims abstract description 33
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 10
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 229920001577 copolymer Polymers 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000004593 Epoxy Substances 0.000 claims abstract description 6
- 239000011247 coating layer Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 4
- 150000002118 epoxides Chemical class 0.000 description 4
- 230000002421 anti-septic effect Effects 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
本实用新型公开了一种复合涂层防腐钢管，包括钢管，所述钢管外表面依次涂覆有环氧粉末涂料层、乙酸乙烯酯共聚物胶粘剂涂层和聚乙烯涂层，钢管内表面涂覆有高氯化聚乙烯涂层。本实用新型的复合涂层防腐钢管外壁依次喷涂环氧粉末、乙酸乙烯酯共聚物胶粘剂和聚乙烯，层间结合好，钢管内表面覆有的高氯化聚乙烯，高温下固化流平效果好。在确保外防腐钢管的防腐效果前提下，同时提高了管内的防腐减阻效果，可延长设备管道的使用寿命，降低生产投资成本保障安全生产的特点。
The utility model discloses a composite coated anti-corrosion steel pipe, which comprises a steel pipe, the outer surface of the steel pipe is coated with epoxy powder coating layer, vinyl acetate copolymer adhesive coating and polyethylene coating in sequence, and the inner surface of the steel pipe is coated with Has a high chlorinated polyethylene coating. The outer wall of the composite coating anti-corrosion steel pipe of the utility model is sprayed with epoxy powder, vinyl acetate copolymer adhesive and polyethylene in sequence, and the layers are well bonded. The inner surface of the steel pipe is covered with high-chlorinated polyethylene, which has a good curing and leveling effect at high temperature. . On the premise of ensuring the anti-corrosion effect of the external anti-corrosion steel pipe, the anti-corrosion and drag reduction effect inside the pipe is improved at the same time, which can prolong the service life of the equipment pipeline, reduce production investment costs and ensure safe production.
Description
Technical field
The utility model relates to a kind of anti-corrosive steel tube, relates in particular to a kind of composite coating anti-corrosive steel tube.
Background technique
Increase along with China's oil refining industry processing high-sulphur crude quantity, what one-tenth branch such as the sulphur in the crude oil, hydrogen sulfide, sulfur dioxide produced becomes increasingly conspicuous to equipment and Corrosion of Pipeline problem, with the carbon steel be main material make as cool exchanging equipment such as heat exchanger and the pipeline of aggressive medium is arranged, there are electrochemical corrosion, high temperature corrosion and cause it to scrap too early, cause the waste of lot of materials, increase production cost of investment and unplanned loss of fixed assets and production safety hidden danger.
Pipeline corrosion protection by taking various means, is protected the metallic conduit of easy corrosion exactly, reaches the purpose that prolongs its working life, adopts physics anticorrosion usually, chemical preservation, methods such as electrochemical anti-corrosive.
Yet present composite coating anti-corrosive steel tube antiseptic effect is unsatisfactory.
The model utility content
For solving the deficiencies in the prior art, the utility model provides a kind of composite coating anti-corrosive steel tube.
The utility model is achieved by following technical proposals:
A kind of composite coating anti-corrosive steel tube comprises steel pipe, and described outer surface of steel tube is coated with epoxide powder coating layer, vinyl acetate copolymer adhesive coating and polyethylene coating successively, and steel pipe internal-surface is coated with the highly-chlorinated polyethylene coating.
Further, in the composite coating anti-corrosive steel tube, described epoxide powder coating layer thickness is 50～70um, and described vinyl acetate copolymer adhesive coating thickness is 100～120um, described polyethylene coating thickness is 300～500um, and described highly-chlorinated polyethylene coating thickness is 50～70um.
Composite coating anti-corrosive steel tube outer wall of the present utility model sprays epoxy powder, vinyl acetate copolymer adhesive and polyethylene successively, and interlayer is combined, and it is effective that the highly-chlorinated polyethylene that steel pipe internal-surface is covered with, high temperature solidify levelling down.Outside guaranteeing, under the antiseptic effect prerequisite of anti-corrosive steel tube, improved the anticorrosion drag-reduction effect in the pipe simultaneously.
Description of drawings
Fig. 1 is the utility model composite coating anti-corrosive steel tube structure cut-away view.
Wherein, among the figure: 1 is steel pipe, and 2 is the epoxide powder coating layer, and 3 is the vinyl acetate copolymer adhesive coating, and 4 is polyethylene coating, and 5 is the highly-chlorinated polyethylene coating.
Embodiment
Below in conjunction with embodiment the utility model is further described.
As shown in Figure 1, a kind of composite coating anti-corrosive steel tube, adopt industry conventional method to be coated with 50～70um epoxide powder coating layer 2,100～120um vinyl acetate copolymer adhesive coating 3 and 300～500um polyethylene coating 4 successively at steel pipe 1 outer surface, adopt industry conventional method to be coated with 50～70um highly-chlorinated polyethylene coating 5 at steel pipe 1 internal surface.
Composite coating anti-corrosive steel tube outer wall of the present utility model sprays epoxy powder, vinyl acetate copolymer adhesive and polyethylene successively, and interlayer is combined, and it is effective that the highly-chlorinated polyethylene that steel pipe internal-surface is covered with, high temperature solidify levelling down.Outside guaranteeing, under the antiseptic effect prerequisite of anti-corrosive steel tube, improve the anticorrosion drag-reduction effect in the pipe simultaneously, can prolong the working life of equipment pipe, reduced the characteristics that the production cost of investment guarantees safe production.
Undoubtedly, the utility model can also have multiple conversion and remodeling, is not limited to the concrete structure of above-mentioned mode of execution.In a word, protection domain of the present utility model should comprise those conspicuous to those skilled in the art conversion or substitute and remodeling.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205537369U CN201787274U (en) | 2010-09-30 | 2010-09-30 | Composite coated anti-corrosion steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205537369U CN201787274U (en) | 2010-09-30 | 2010-09-30 | Composite coated anti-corrosion steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787274U true CN201787274U (en) | 2011-04-06 |
Family
ID=43819237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205537369U Expired - Fee Related CN201787274U (en) | 2010-09-30 | 2010-09-30 | Composite coated anti-corrosion steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653947A (en) * | 2014-04-29 | 2015-05-27 | 郝连国 | Preparation method for steel pipe fitting with anticorrosive layer |
-
2010
- 2010-09-30 CN CN2010205537369U patent/CN201787274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653947A (en) * | 2014-04-29 | 2015-05-27 | 郝连国 | Preparation method for steel pipe fitting with anticorrosive layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20110930 |