CN207261844U - A kind of steel lining composite pipe structure - Google Patents
A kind of steel lining composite pipe structure Download PDFInfo
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- CN207261844U CN207261844U CN201720987204.8U CN201720987204U CN207261844U CN 207261844 U CN207261844 U CN 207261844U CN 201720987204 U CN201720987204 U CN 201720987204U CN 207261844 U CN207261844 U CN 207261844U
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Abstract
The utility model discloses a kind of steel lining composite pipe structure.The both ends of steel-tube construction layer and steel-tube construction layer that it includes outer layer are welded with connecting flange, have the corrosion-inhibiting coating of steel-tube construction layer and connecting flange integral coating outside steel-tube construction layer and connecting flange, there is the plastic layer for directly coating steel-tube construction layer and connecting flange, going back compound coating in plastic layer has polyolefin undercoating in steel-tube construction layer and connecting flange.After above-mentioned structure; so that whole tube body can be effectively protected; particularly the junction of steel-tube construction layer and connecting flange be provided with arc concaveconvex structure cause junction gap small and by after compound so that connection combined strength bination is high; in addition; the waves structure that clad is set; the difference of the compactness of connection and relief fabric size is improved so that being completely embedded property higher; make destruction and corrosion of the inner layer composite material layer from positive pressure; avoid and come off out of steel pipe, extend service life.
Description
Technical field
The present invention relates to a kind of line pipe material, specifically a kind of steel lining composite pipe structure.
Background technology
Steel lining multiple tube is combined by plastic tube and steel pipe, wherein, flanged (FLGD) steel pipe is outer as reinforcement sheath
Layer, internal layer of the plastic tube as matrix tubing, the matrix tubing of internal layer along the outer layer mouth of pipe extend to end face of flange outer rim formed it is whole
The pipe-line equipment of body, is corrosive liquid yet with the pipeline mainly for delivery of concentrated nitric acid and chloroazotic acid, existing multiple tube
Although certain corrosion resistance can be reached, at the flanged ends of tubing, due to need into be about to adjacent tube body into
Row connects, and has gap between its junction, hence in so that fluid easily damages its gap location, so that matrix tubing
Start to come off out of steel pipe in junction, have impact on service life.
The content of the invention
The technical problem to be solved in the present invention provide one kind can improve junction with reference to power, so as to ensureing that tube body is prolonged resistance to
Steel lining composite pipe structure.
In order to solve the above-mentioned technical problem, steel lining composite pipe structure of the invention, including the steel-tube construction layer of outer layer and
The both ends of steel-tube construction layer are welded with connecting flange, have outside steel-tube construction layer and connecting flange by steel-tube construction layer and company
Have in the corrosion-inhibiting coating of acting flange integral coating, steel-tube construction layer and connecting flange steel-tube construction layer and connecting flange is direct
The plastic layer of cladding, going back compound coating in plastic layer has polyolefin undercoating.
The junction of the steel-tube construction layer and connecting flange is provided with arcuate relief structure.
The joint face of the connecting flange is arranged to wavelike structure, and the plastic layer is combined with the joint face of connecting flange
Place is similarly wavelike structure, and the wavy relief fabric of the plastic layer is less than the wavy knot that rises and falls of joint face of connecting flange
Structure.
Wavelike structure, the polyene are similarly at the wavelike structure faying face of the polyolefin undercoating and plastic layer
The internally coated wavy relief fabric of hydrocarbon is less than the wavy relief fabric of plastic layer.
After above-mentioned structure, have steel-tube construction layer due to the surfaces externally and internally of steel-tube construction layer and connecting flange and
Corrosion-inhibiting coating, plastic layer and the polyolefin undercoating of connecting flange integral coating, so that whole tube body can access
The concaveconvex structure that effectively protection, the particularly junction of steel-tube construction layer and connecting flange are provided with arc causes junction gap
It is small and by after compound so that connection combined strength bination is high, in addition, the waves structure that clad is set, improves connection
The difference of compactness and relief fabric size causes being completely embedded property higher, makes destruction of the inner layer composite material layer from positive pressure
And corrosion, avoid and come off out of steel pipe, extend service life.
Brief description of the drawings
Fig. 1 is the partial structural diagram of steel lining composite pipe structure of the present invention.
Embodiment
With reference to the accompanying drawings and detailed description, the steel lining composite pipe structure of the present invention is described in further detail.
As shown in the figure, the steel lining composite pipe structure of the present invention, includes the steel-tube construction layer 1 and steel-tube construction layer 1 of outer layer
Both ends be welded with connecting flange 2, the junction of steel-tube construction layer 1 and connecting flange 2 is provided with the concaveconvex structure of arc,
The uniformity of connection can be improved after adjacent multiple tube connection by the concaveconvex structure design of arc, avoids conventional orthogonal
The water chestnut that connection mode has, so as to reduce destructiveness, has steel-tube construction layer 1 outside steel-tube construction layer 1 and connecting flange 2
Have steel-tube construction layer 1 with the corrosion-inhibiting coating 3 of 2 integral coating of connecting flange, in steel-tube construction layer 1 and connecting flange 2 and connect
The plastic layer 4 that acting flange 2 directly coats, going back compound coating in plastic layer 4 has polyolefin undercoating 5.
Further, the joint face of described connecting flange 2 is arranged to wavelike structure, the plastic layer 4 and connection method
The joint face junction of orchid 2 is similarly wavelike structure, and the wavy relief fabric of the plastic layer 4 is less than connecting flange 2
The wavy relief fabric of joint face, polyolefin undercoating 5 at the wavelike structure faying face of plastic layer 4 with being similarly wavy knot
Structure, the wavy relief fabric of polyolefin undercoating 5 are less than the wavy relief fabric of plastic layer 4.
Claims (4)
1. a kind of steel lining composite pipe structure, includes the steel-tube construction layer of outer layer（1）And steel-tube construction layer（1）Both ends welding it is solid
Surely there is connecting flange（2）, it is characterised in that：The steel-tube construction layer（1）And connecting flange（2）It is outer to have steel-tube construction layer
（1）And connecting flange（2）The corrosion-inhibiting coating of integral coating（3）, the steel-tube construction layer（1）And connecting flange（2）It is interior that there is general
Steel-tube construction layer（1）And connecting flange（2）The plastic layer directly coated（4）, the plastic layer（4）Inside going back compound coating has polyene
Hydrocarbon undercoating（5）.
2. steel lining composite pipe structure described in accordance with the claim 1, it is characterised in that：The steel-tube construction layer（1）And connection method
It is blue（2）Junction be provided with the concaveconvex structure of arc.
3. according to the steel lining composite pipe structure described in claim 1 or 2, it is characterised in that：The connecting flange（2）Joint face
It is arranged to wavelike structure, the plastic layer（4）With connecting flange（2）Joint face junction be similarly wavelike structure, institute
State plastic layer（4）Wavy relief fabric be less than connecting flange（2）The wavy relief fabric of joint face.
4. steel lining composite pipe structure described in accordance with the claim 3, it is characterised in that：The polyolefin undercoating（5）With plastics
Layer（4）Wavelike structure faying face at be similarly wavelike structure, the polyolefin undercoating（5）Wavy relief fabric
Less than plastic layer（4）Wavy relief fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720987204.8U CN207261844U (en) | 2017-08-09 | 2017-08-09 | A kind of steel lining composite pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720987204.8U CN207261844U (en) | 2017-08-09 | 2017-08-09 | A kind of steel lining composite pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261844U true CN207261844U (en) | 2018-04-20 |
Family
ID=61924377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720987204.8U Active CN207261844U (en) | 2017-08-09 | 2017-08-09 | A kind of steel lining composite pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529598A (en) * | 2017-08-09 | 2018-01-02 | 镇江春环密封件集团有限公司 | A kind of steel lining composite pipe structure |
| CN110762296A (en) * | 2019-10-21 | 2020-02-07 | 吕文兴 | Novel multifunctional composite steel pipe and preparation method thereof |
-
2017
- 2017-08-09 CN CN201720987204.8U patent/CN207261844U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529598A (en) * | 2017-08-09 | 2018-01-02 | 镇江春环密封件集团有限公司 | A kind of steel lining composite pipe structure |
| CN110762296A (en) * | 2019-10-21 | 2020-02-07 | 吕文兴 | Novel multifunctional composite steel pipe and preparation method thereof |
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