CN205401976U - Outer PE's of interior epoxy plastic -coated steel tube - Google Patents
Outer PE's of interior epoxy plastic -coated steel tube Download PDFInfo
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- CN205401976U CN205401976U CN201620156564.9U CN201620156564U CN205401976U CN 205401976 U CN205401976 U CN 205401976U CN 201620156564 U CN201620156564 U CN 201620156564U CN 205401976 U CN205401976 U CN 205401976U
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- steel pipe
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- epoxy
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Abstract
The utility model discloses an outer PE's of interior epoxy plastic -coated steel tube, including the steel pipe of compriseing inner tube and outer tube, connecting insulating connecting pipe between inner tube and the outer tube, the PE pipe is connected through protruding and connecting rod to the outer tube, and the epoxy pipe is connected through protruding and connecting rod to the inner tube, at the intraductal electric installation that is equipped with of epoxy, connects a set of guide wire shaft on the electric installation, and guide wire shaft passes steel pipe and PE pipe setting. The utility model discloses an advantage: become light for current quality of steel pipe, and raw materials are saved, installation, because in the steel pipe, plastic -coated layer is all connected through protruding and connecting rod to the surface, the friction resistance between steel pipe and the plastic layer has effectively been strengthened, it is flexible to have prevented plastics expend with heat and contract with cold to warp, the possibility that leads to the inner liner drawing breakage because of stress concentration has been eliminated, thereby the fastness of being connected on plastic -coated layer and steel pipe surface has been improved greatly, plastic -coated not readily releasable comes off, can effectively prevent intraductal produced static through electric installation and guide wire shaft.
Description
Technical field
This utility model relates to pipe technology field, particularly relates to the plastic-coated steel of the outer PE of a kind of interior epoxy.
Background technology
nullPlastic-coated steel is a kind of pipeline by playing protection steel pipe inner wall on steel pipe inner wall with one layer of plastic layer of plastic spraying hot melt，Need before being typically in plastic-coated the inwall of steel pipe is processed，Such as ball blast、The operations such as rust cleaning，The inwall making steel pipe is as far as possible bright and clean，Increase the being firmly combined with property of coating layer and steel pipe inner wall，But often there is, when normal use, the phenomenon that coating layer breaks in plastic-coated steel，This is owing to the thermal coefficient of expansion gap of steel pipe Yu coating layer causes greatly very much，Under the identical temperature difference，The thermal volume expansion of coating layer to be far longer than the thermal volume expansion of steel pipe itself，So when difference variation is bigger，Coating layer very easily produces retractility and peels off，Separate with steel pipe time serious and come off，Lose the protective effect of coating layer，And this elongation percentage difference raises along with temperature and strengthens，Particularly in caliber bigger time，Big lining area relative accumulation deflection is big，Coating is more prone to shrink、Cracking、Separation comes off.The caliber pipe more than 600mm, because people can enter operation in pipeline, therefore at inner surface of tube by measures such as welding, can be welded to connect steel wire, stud etc. at inner surface of tube and prevents stripping measure.And for the less plastic-coated steel of caliber, staff cannot be introduced into pipe interior and keeps in repair, and can only change pipeline, thus adding the maintenance cost of equipment.Simultaneously because plastic product very easily produces electrostatic, electrostatic very easily causes electric spark, consequently, it is possible to cause blast, causes the generation of security incident.
Utility model content
The purpose of this utility model is to solve the shortcoming existed in prior art, and the plastic-coated steel of the outer PE of a kind of interior epoxy proposed.
To achieve these goals, this utility model adopts the technical scheme that
A kind of plastic-coated steel of the outer PE of interior epoxy, including steel pipe, outer surface at described steel pipe is provided with PE pipe, inner surface at described steel pipe is provided with epoxy tube, it is characterised in that: described steel pipe includes interior pipe, is socketed outer tube in the outside of said inner tube, toroidal cavity it is provided with between said inner tube and outer tube, being provided with insulation connecting tube in described toroidal cavity, the inwall in said inner tube is provided with projection and connecting rod, and the outer wall of described outer tube also is provided with projection and connecting rod；
Being provided with electric installation in described epoxy tube, connect one group of conductor rod on described electric installation, described conductor rod is arranged through described steel pipe and PE pipe.
Preferably, described electric installation includes one group of ring shaped conductive bar be arrangeding in parallel, connects one group and connects conducting rod, connect described conductor rod at described connection conducting rod between described ring shaped conductive bar.
The utility model has the advantage of: the plastic-coated steel of the outer PE of a kind of interior epoxy provided by the utility model, lighten relative to existing tube quality, save raw material, it is easily installed, due in steel pipe, outer surface connects coating layer each through protruding and connecting rod, effectively enhance the frictional resistance between steel pipe and plastic layer, prevent plastics deformation of expanding with heat and contract with cold flexible, eliminate stress and concentrate the possibility causing inner liner drawing crack, thus substantially increasing the connection fastness of coating layer and steel tube surface, plastic-coated is not readily separated and comes off, produced electrostatic in pipe can be effectively prevented by electric installation and conductor rod.
Accompanying drawing explanation
Fig. 1 is the structural representation of the plastic-coated steel of the outer PE of a kind of interior epoxy provided by the utility model；
Fig. 2 is the assembling figure of Fig. 1；
Fig. 3 is the side view of steel pipe.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
As shown in Figure 1, Figure 2 and Figure 3, the plastic-coated steel of the outer PE of a kind of interior epoxy that this utility model provides, including steel pipe 1, described steel pipe 1 includes interior pipe 1.1, it is socketed outer tube 1.2 in the outside of said inner tube 1.1, between said inner tube 1.1 and outer tube 1.2, is provided with toroidal cavity 1.3, in described toroidal cavity 1.3, be provided with insulation connecting tube 3, insulation 3 said inner tube 1.1 of connecting tube and outer tube 1.2 are fixed together
The inwall of said inner tube 1.1 is provided with protruding 1.4 and connecting rod 2, and said inner tube 1.1 is adhesively fixed described epoxy tube 7 by inner glue layer；The outer wall of described outer tube 1.2 also is provided with protruding 1.4 and connecting rod 2, and described outer tube 1.2 is adhesively fixed described PE pipe 4 by outer glue-line.
It is provided with electric installation 6 in described epoxy tube 5, described electric installation 6 includes one group of ring shaped conductive bar 6.1 be arrangeding in parallel, connect one group between described ring shaped conductive bar 6.1 and connect conducting rod 6.2, connecting described conductor rod 7 at described connection conducting rod 6.2, described conductor rod 7 is arranged through described steel pipe 6 and PE pipe 4.
Claims (2)
1. the plastic-coated steel of the outer PE of epoxy in a kind, including steel pipe (1), outer surface at described steel pipe (1) is provided with PE pipe (4), inner surface at described steel pipe (1) is provided with epoxy tube (5), it is characterized in that: described steel pipe (1) includes interior pipe (1.1), outer tube (1.2) it is socketed in the outside of said inner tube (1.1), toroidal cavity (1.3) it is provided with between said inner tube (1.1) and outer tube (1.2), insulation connecting tube (3) it is provided with in described toroidal cavity (1.3), inwall in said inner tube (1.1) is provided with projection (1.4) and connecting rod (2), the outer wall of described outer tube (1.2) also is provided with projection (1.4) and connecting rod (2)；
Being provided with electric installation (6) in described epoxy tube (5), described electric installation (6) one group of conductor rod (7) of upper connection, described conductor rod (7) is arranged through described steel pipe (1) and PE pipe (4).
2. the plastic-coated steel of the outer PE of a kind of interior epoxy according to claim 1, it is characterized in that: described electric installation (6) includes one group of ring shaped conductive bar (6.1) be arrangeding in parallel, connect one group between described ring shaped conductive bar (6.1) and connect conducting rod (6.2), connect described conductor rod (7) described connection conducting rod (6.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156564.9U CN205401976U (en) | 2016-03-02 | 2016-03-02 | Outer PE's of interior epoxy plastic -coated steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156564.9U CN205401976U (en) | 2016-03-02 | 2016-03-02 | Outer PE's of interior epoxy plastic -coated steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401976U true CN205401976U (en) | 2016-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620156564.9U Active CN205401976U (en) | 2016-03-02 | 2016-03-02 | Outer PE's of interior epoxy plastic -coated steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401976U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606328A (en) * | 2017-09-04 | 2018-01-19 | 湖北鑫汉通管业有限公司 | A kind of corrosion resistant plastic-coated steel for facilitating local replacing |
| CN108300144A (en) * | 2017-09-04 | 2018-07-20 | 湖北鑫汉通管业有限公司 | A kind of high-strength corrosion-resisting plastic-coated steel |
| CN112901167A (en) * | 2021-03-06 | 2021-06-04 | 方莹 | Novel longitudinal support transverse expansion rock cracking pipe |
-
2016
- 2016-03-02 CN CN201620156564.9U patent/CN205401976U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606328A (en) * | 2017-09-04 | 2018-01-19 | 湖北鑫汉通管业有限公司 | A kind of corrosion resistant plastic-coated steel for facilitating local replacing |
| CN108300144A (en) * | 2017-09-04 | 2018-07-20 | 湖北鑫汉通管业有限公司 | A kind of high-strength corrosion-resisting plastic-coated steel |
| CN107606328B (en) * | 2017-09-04 | 2023-03-14 | 湖北鑫汉通管业有限公司 | Make things convenient for corrosion-resistant plastic-coated steel pipe of local change |
| CN112901167A (en) * | 2021-03-06 | 2021-06-04 | 方莹 | Novel longitudinal support transverse expansion rock cracking pipe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |