CN2869529Y - Inner powder two-layer structure polytene corrosion-proof pipe - Google Patents
Inner powder two-layer structure polytene corrosion-proof pipe Download PDFInfo
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- CN2869529Y CN2869529Y CN 200620001424 CN200620001424U CN2869529Y CN 2869529 Y CN2869529 Y CN 2869529Y CN 200620001424 CN200620001424 CN 200620001424 CN 200620001424 U CN200620001424 U CN 200620001424U CN 2869529 Y CN2869529 Y CN 2869529Y
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- corrosion
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Abstract
A polythene corrosion prevention pipe with inner powdered two layer structure to solve poor corrosion performance of prior liquid pipeline with following characteristic: the hot spraying epoxy powder coating (2) of inner surface of a steel pipe (1), copolymer prime course is painted on outer space of the steel pipe (1) and polythene course (4) polythene corrosion prevention pipe with inner powdered two layer structure is of good corrosion performance for service life of the piping.
Description
Technical field:
The utility model relates to employed a kind of anti-corrosion pipe in the transfusion field, oil field, especially interior powder two-layer structure polyethylene anti-corrosion pipe.
Background technique:
Along with the development of oil field development extra-low permeability layer technology, requirements at the higher level have been proposed for filling pipe, sewage conduct performance.The main effect of oil field anti-corrosion pipeline is to prevent steel pipe because extraneous corrosion causes the pipeline perforation.For carrying the complex dielectrics pipeline, also to prevent corrosivity because of medium to the steel pipe inner wall corrosion, prevent that iron ion is water-soluble and change the composition of medium.And do not have antikathode peeling strength height,, problem such as surface roughness low poor because of existing anti-corrosion pipe with the steel bonding force.Can't guarantee that injection water quality, inner wall corrosion work.The allomeric function and the working life that influence the 2PE pipeline shorten.
The model utility content:
In order to solve the deficiency of existing indusion tube antiseptic property difference, the utility model provide a kind of in powder two-layer structure polyethylene anti-corrosion pipe, to have an antiseptic property good for powder two-layer structure polyethylene anti-corrosion pipe in this, improves the whole service life of pipe.
Technical solution adopted in the utility model is: powder two-layer structure polyethylene anti-corrosion pipe comprises steel pipe in this, steel pipe internal-surface thermal spraying FBE, and outer surface of steel tube is squeezing and coating copolymer primer layer and polyethylene layer successively.
FBE in the such scheme (2) thickness is 250 μ m-350 μ m; Copolymer primer layer (3) thickness is 250 μ m; Polyethylene layer (4) thickness is 2.5mm～2.9mm.
The beneficial effects of the utility model are: powder two-layer structure polyethylene anti-corrosion pipe in this is owing to taked such scheme; by inside and outside FBE and copolymer primer layer and polyethylene layer; can effectively prevent the corrosion in the steel pipe; can effectively prevent the corrosion that steel pipe is outer again; even if external protection breakage, thermal insulation layer water inlet; can not produce corrosion to outer surface of steel tube yet; compare with simple 2PE anti-corrosion pipe with the traditional coating anti-corrosion pipe; anticorrosive coat and 1 grade of steel pipe inwall adhesion, antikathode are peeled off less than 8 centimetres in the utility model.2PE anticorrosive coat and steel pipe bonding force 50N/CM, inside and outside wall is smooth, has the advantages that bonding force is strong, the strong flat appearance of anti-corrosive properties is smooth.Under normal operation, working life is more than 30 years.Satisfy the field produces needs.
Description of drawings:
Fig. 1 is a half sectional view of the present utility model.
1-steel pipe among the figure, 2-FBE, 3-copolymer primer layer, 4-polyethylene layer.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in FIG., powder two-layer structure polyethylene anti-corrosion pipe comprises steel pipe 1 in this, steel pipe 1 internal surface thermal spraying FBE 2, and FBE 2 thickness are 250 μ m-350 μ m; Steel pipe 1 outer surface is squeezing and coating copolymer primer layer 3 and polyethylene layer 4 successively, and copolymer primer layer 3 thickness are 250 μ m; Polyethylene layer 4 thickness are 2.5mm～2.9mm.By inside and outside FBE 2 and copolymer primer layer 3 and polyethylene layer 4; can effectively prevent the corrosion in the steel pipe; can effectively prevent the corrosion that steel pipe is outer again; even if external protection breakage, thermal insulation layer water inlet; can not produce corrosion to outer surface of steel tube yet; compare with simple 2PE anti-corrosion pipe with the traditional coating anti-corrosion pipe, anticorrosive coat 2 is peeled off less than 8 centimetres with 1 grade of steel pipe inwall adhesion, antikathode in the utility model.2PE anticorrosive coat 3 and steel pipe bonding force 50N/CM, inside and outside wall is smooth, has the advantages that bonding force is strong, the strong flat appearance of anti-corrosive properties is smooth.Under normal operation, working life is more than 30 years.Satisfy the field produces needs.
Claims (2)
1, a kind of interior powder two-layer structure polyethylene anti-corrosion pipe comprises steel pipe (1), and it is characterized in that: steel pipe (1) internal surface thermal spraying FBE (2), steel pipe (1) outer surface is squeezing and coating copolymer primer layer (3) and polyethylene layer (4) successively.
2, interior powder two-layer structure polyethylene anti-corrosion pipe according to claim 1, it is characterized in that: FBE (2) thickness is 250 μ m-350 μ m; Copolymer primer layer (3) thickness is 250 μ m; Polyethylene layer (4) thickness is 2.5mm～2.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620001424 CN2869529Y (en) | 2006-01-23 | 2006-01-23 | Inner powder two-layer structure polytene corrosion-proof pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620001424 CN2869529Y (en) | 2006-01-23 | 2006-01-23 | Inner powder two-layer structure polytene corrosion-proof pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2869529Y true CN2869529Y (en) | 2007-02-14 |
Family
ID=37724466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620001424 Expired - Fee Related CN2869529Y (en) | 2006-01-23 | 2006-01-23 | Inner powder two-layer structure polytene corrosion-proof pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2869529Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542199A (en) * | 2013-10-27 | 2014-01-29 | 何鹏 | Composite coating pipe |
-
2006
- 2006-01-23 CN CN 200620001424 patent/CN2869529Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542199A (en) * | 2013-10-27 | 2014-01-29 | 何鹏 | Composite coating pipe |
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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 |