CN205401982U - Prevent that plastic -coated layer drops and prevent plastic -coated steel tube of static - Google Patents
Prevent that plastic -coated layer drops and prevent plastic -coated steel tube of static Download PDFInfo
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- CN205401982U CN205401982U CN201620156565.3U CN201620156565U CN205401982U CN 205401982 U CN205401982 U CN 205401982U CN 201620156565 U CN201620156565 U CN 201620156565U CN 205401982 U CN205401982 U CN 205401982U
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Abstract
The utility model discloses a prevent that plastic -coated layer drops and prevent plastic -coated steel tube of static, the steel pipe of constituteing including inner tube and outer tube is equipped with outer longitudinal Groove in the outer tube outside, and the inner tube inboard is equipped with interior longitudinal Groove, and the steel pipe surface is equipped with outer plastic -coated layer, is equipped with interior plastic -coated layer at the internal surface of steel pipe is equipped with the electric installation in the plastic -coated layer including, and a set of guide wire shaft of connection on the electric installation, guide wire shaft pass steel pipe and the setting of outer plastic -coated layer. The utility model discloses an advantage: becoming light for current quality of steel pipe, having saved raw and other materials, the installation of being convenient for has effectively strengthened the friction resistance between steel pipe and the plastic layer, and it is flexible to have prevented plastics expend with heat and contract with cold to warp, has eliminated the possibility that leads to the inner liner drawing breakage because of stress concentration to improved the fastness of being connected on plastic -coated layer and steel pipe surface 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 anti-coating layer and comes off the plastic-coated steel of antistatic.
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 anti-coating layer proposed comes off the plastic-coated steel of antistatic.
To achieve these goals, this utility model adopts the technical scheme that
Anti-coating layer comes off the plastic-coated steel of antistatic, including steel pipe, outer surface at described steel pipe is provided with outer coating layer, inner surface at described steel pipe is provided with internal plastic coating layer, it is characterized in that: described steel pipe includes interior pipe, outer tube it is socketed in the outside of said inner tube, connect by connecting plate is fixing between said inner tube and outer tube, the uniform one group of outer longitudinal fluting of outer wall at described outer tube, each described outer longitudinal fluting is arranged each along the bus of described outer tube, longitudinal fluting in the inner wall even distribution one group of said inner tube, each described interior longitudinal fluting is arranged each along the bus of said inner tube；
It is provided with in the inner side of described outer coating layer and the interior raised line of described outer longitudinal fluting corresponding matching, described interior raised line is arranged along the bus of described outer coating layer inwall, being provided with in the outside of described internal plastic coating layer and the outer raised line of described interior longitudinal fluting corresponding matching, described outer raised line is arranged along the bus of described internal plastic coating layer outer wall；
Being provided with electric installation in described internal plastic coating layer, connect one group of conductor rod on described electric installation, described conductor rod is arranged through described steel pipe and outer coating layer.
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.
Preferably, at said inner tube, the cavity forming one group of independence between described outer tube and connecting plate, being equipped with packed layer in each described cavity, described packed layer is arc platy structure.
The utility model has the advantage of: anti-coating layer provided by the utility model comes off the plastic-coated steel of antistatic, lighten relative to existing tube quality, save raw material, it is easily installed, due in steel pipe, outer surface is equipped with longitudinal fluting, thus in can making, outer coating layer is partially submerged in steel pipe groove in reflow process, 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 that anti-coating layer provided by the utility model comes off the structural representation of plastic-coated steel of antistatic；
The assembling figure of Fig. 2 Fig. 1；
The side view of Fig. 3 steel pipe；
Fig. 4 packed layer structural representation.
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, Figure 3 and Figure 4, the anti-coating layer that this utility model provides comes off the plastic-coated steel of antistatic, including steel pipe 8, described steel pipe 8 includes interior pipe 1, it is socketed outer tube 2 in the outside of said inner tube 1, connects by connecting plate 1.2 is fixing between said inner tube 1 and outer tube 2, between said inner tube 1, described outer tube 2 and connecting plate 1.2, form the cavity of one group of independence, being equipped with packed layer 3 in each described cavity, described packed layer 3 is arc platy structure.
Outer surface at described steel pipe 8 is provided with outer coating layer 4, the uniform one group of outer longitudinal fluting 2.1 of outer wall at described outer tube 2, the groove depth of described outer longitudinal fluting 2.1 is 0.1mm 0.2mm, this programme is preferably 0.15mm, each described outer longitudinal fluting 2.1 is arranged each along the bus of described outer tube 2, being provided with in the inner side of described outer coating layer 4 and the interior raised line 4.1 of described outer longitudinal fluting 2.1 corresponding matching, described interior raised line 4.1 is arranged along the bus of described outer coating layer 4 inwall.
Inner surface at described steel pipe 8 is provided with internal plastic coating layer 5, longitudinal fluting 1.1 in the inner wall even distribution one group of said inner tube 1, each described interior longitudinal fluting 1.1 is arranged each along the bus of said inner tube 1, the groove depth of described interior longitudinal fluting 1.1 is 0.1mm 0.2mm, this programme is preferably 0.15mm, when said inner tube 1 and outer tube 2 are assembled, described outer longitudinal fluting 2.1 and described interior longitudinal fluting 1.1 interval shift to install.Being provided with in the outside of described internal plastic coating layer 5 and the outer raised line 5.1 of described interior longitudinal fluting 1.1 corresponding matching, described outer raised line 5.1 is arranged along the bus of described internal plastic coating layer 5 outer wall.
It is provided with electric installation 6 in described internal plastic coating layer 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 8 and outer coating layer 4.
Claims (3)
1. anti-coating layer comes off the plastic-coated steel of antistatic, including steel pipe (8), outer surface at described steel pipe (8) is provided with outer coating layer (4), inner surface at described steel pipe (1) is provided with internal plastic coating layer (5), it is characterized in that: described steel pipe (8) includes interior pipe (1), outer tube (2) it is socketed in the outside of said inner tube (1), connect by connecting plate (1.2) is fixing between said inner tube (1) and outer tube (2), the uniform one group of outer longitudinal fluting (2.1) of outer wall at described outer tube (2), each described outer longitudinal fluting (2.1) is arranged each along the bus of described outer tube (2), longitudinal fluting (1.1) in the inner wall even distribution one group of said inner tube (1), each described interior longitudinal fluting (1.1) is arranged each along the bus of said inner tube (1)；
It is provided with in the inner side of described outer coating layer (4) and the interior raised line (4.1) of described outer longitudinal fluting (2.1) corresponding matching, described interior raised line (4.1) is arranged along the bus of described outer coating layer (4) inwall, being provided with in the outside of described internal plastic coating layer (5) and the outer raised line (5.1) of described interior longitudinal fluting (1.1) corresponding matching, described outer raised line (5.1) is arranged along the bus of described internal plastic coating layer (5) outer wall；
Being provided with electric installation (6) in described internal plastic coating layer (5), described electric installation (6) one group of conductor rod (7) of upper connection, described conductor rod (7) is arranged through described steel pipe (8) and outer coating layer (4).
2. anti-coating layer according to claim 1 comes off the plastic-coated steel of antistatic, 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).
3. anti-coating layer according to claim 1 comes off the plastic-coated steel of antistatic, it is characterized in that: between said inner tube (1), described outer tube (2) and connecting plate (1.2), form the cavity of one group of independence, being equipped with packed layer (3) in each described cavity, described packed layer (3) is arc platy structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156565.3U CN205401982U (en) | 2016-03-02 | 2016-03-02 | Prevent that plastic -coated layer drops and prevent plastic -coated steel tube of static |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620156565.3U CN205401982U (en) | 2016-03-02 | 2016-03-02 | Prevent that plastic -coated layer drops and prevent plastic -coated steel tube of static |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401982U true CN205401982U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620156565.3U Active CN205401982U (en) | 2016-03-02 | 2016-03-02 | Prevent that plastic -coated layer drops and prevent plastic -coated steel tube of static |
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| Country | Link |
|---|---|
| CN (1) | CN205401982U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387891A (en) * | 2017-09-05 | 2017-11-24 | 江阴华西捷派埃钢塑管材有限公司 | A kind of outer epoxy lining plastic pipe |
| 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 |
-
2016
- 2016-03-02 CN CN201620156565.3U patent/CN205401982U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107387891A (en) * | 2017-09-05 | 2017-11-24 | 江阴华西捷派埃钢塑管材有限公司 | A kind of outer epoxy lining plastic pipe |
| CN107387891B (en) * | 2017-09-05 | 2024-06-04 | 青岛尚禹环境科技有限公司 | Plastic pipe with outer epoxy liner |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |