CN205618851U - Exoskeletal tub of polyethylene double -walled bellows - Google Patents
Exoskeletal tub of polyethylene double -walled bellows Download PDFInfo
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- CN205618851U CN205618851U CN201620451449.4U CN201620451449U CN205618851U CN 205618851 U CN205618851 U CN 205618851U CN 201620451449 U CN201620451449 U CN 201620451449U CN 205618851 U CN205618851 U CN 205618851U
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- polyethylene
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Abstract
The utility model discloses an exoskeletal tub of polyethylene double -walled bellows, including polyethylene inner plastic pipe and corrugate outer tube, polyethylene inner plastic pipe serves as reasons and goes up the fine continuous real wall pipe of expecting to take spiral winding to form of slice polyethylene strip, lower slice polyethylene strip and middle glass, and respectively adjacent strip edge overlap joint integration each other in proper order, the cross sectional shape of corrugate outer tube connects gradually for the several cells structure, the modular construction is in including controlling two slope sections and connecting control the linkage segment between the two slope section upper ends, control the lower extremes and interior union couplings of two slope sections, the linkage segment is inside sunken arc linkage segment, just the linkage segment with control through the connection of transition circular arc between the two slope sections, the utility model has the advantages of: intensity is high, and corrosion -resistant, the ageing resistance has prolonged life, has improved product quality.
Description
Technical field
This utility model relates to a kind of plastic pipe, a kind of exoskeletal pipe polyethylene double-wall corrugated pipe, belongs to plastic pipe field.
Background technology
Steel-plastics composite pipe has stronger external force resistance destructive characteristics, is effectively improved the service life of pipeline, and extend pipeline is excused from a college course the phase, decreases the leakage of pipeline.Steel-plastics composite pipe is the favorable substitutes of steel conduit and nonmetal pipeline, has broad application prospects at the aspect such as oil-gas gathering and transportation and sewage transport.The Chinese utility model patent of entitled " polyethylene glass winding structure wall pipe " Application No. " 201420152572.7 " discloses a kind of polyethylene glass winding structure wall pipe, it is made up of inner wall layer and outer wall layer, its inner wall layer is to be spirally wound on drum die by adding the compound material strip that glass material strip formed in the middle of upper and lower lamellar polyethylene tape, and each adjacent composite strip edge the most mutually overlaps and merges the continuous solid wall pipe formed；Outer wall layer is helically wound around the evagination reinforcement that inner wall layer outer surface formed and constitutes by covering glass material strip in the middle of tubular polyethylene band outer, interior, and this evagination reinforcement spiral cross-pressure overlap joint in each adjacent composite strip edge of inner wall layer melts commissure.But, this product structure intensity is relatively low, and inside and outside wall is the most damaged, connects insecure, and antiageing effect is poor, reduces service life.
Utility model content
In order to solve the problems referred to above, this utility model devises a kind of exoskeletal pipe polyethylene double-wall corrugated pipe, and intensity is high, corrosion-resistant, and aging resistance extends service life, improves product quality.
The technical solution of the utility model is:
A kind of exoskeletal pipe polyethylene double-wall corrugated pipe, including vinyon inner tube and corrugated outer tube, described vinyon inner tube is the continuous solid wall pipe formed by upper lamellar polyethylene tape, bottom sheet shaped polyethylene band and middle glass material strip spiral winding, and each adjacent ribbons edge the most mutually overlaps fusion；Eliminate original polyethylene backbone pipe, use glass band, it is ensured that the plastic inner pipe centre of form, away from height, reduces product cost；The cross sectional shape of described corrugated outer tube is that some cellular constructions are sequentially connected with, described cellular construction includes left and right two tilting sections, and it is connected to the linkage section between two tilting section upper ends, left and right, described left and right two tilting section all slopes inwardly, form up-narrow and down-wide nearly isosceles trapezoidal structure, improve fastness and the stability of structure, the lower end of described left and right two tilting section is connected with inner tube, described linkage section is the arc linkage section caved inward, and be connected by transition arc between linkage section with left and right two tilting section, improve the pole inertia of tubing away from, thus improve the ring stiffness of tubing.
Further, having oxidation prevention layer outside described corrugated outer tube, described oxidation prevention layer uses EVOH high barrier material to make, it is possible to effectively starvation, prevents oxygen from extending into steel wire further, can effectively prevent steel wire from aoxidizing, improve the service life of multiple tube.The outside of described oxidation prevention layer is provided with continuous fiber prepreg tape, described continuous fiber prepreg tape is formed by laser action welding with the multilamellar continuous fiber prepreg tape of longitudinally staggered winding by hoop, improve the compression resistance of product and wear-resistant effect, extend service life, improve product quality.Described continuous fiber is the one in glass fibre, basalt fibre or carbon fiber.
Further, the inner surface of described vinyon inner tube is provided with compound plastic film layer；Preferably, described compound plastic film layer is the curtain coating co-extrusion film of polyester layer and the nylon layer being solidificated in described vinyon inner tube, compound plastic film layer is in addition to combining with vinyon inner tube and bearing the hydraulic pressure stress with minimizing tubing, polyester layer can also be made more firm with the combination of nylon interlayer, fit more uniform, material stress is more uniform, is of value to drawing and forming；By using curtain coating co-extrusion mode, it is not necessary to other adhesive layer, reduce the integral thickness of compound plastic film so that compound plastic film can be made the thinnest, the lightest after increasing polyester layer；There is higher impact strength and folding quality.
It addition, be additionally provided with epoxy layer and ASA coating between described vinyon inner tube and described compound plastic film layer；Described epoxy layer is epoxy resin, and described epoxy layer is located between ASA coating and vinyon inner tube, can operation at bad environments, and length in service life, serviceability are good.
The utility model has the advantage of: intensity is high, corrosion-resistant, aging resistance extends service life, improves product quality.
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Detailed description of the invention
Hereinafter preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.
Embodiment 1
As shown in Figure 1, a kind of exoskeletal pipe polyethylene double-wall corrugated pipe, including vinyon inner tube 1 and corrugated outer tube 2, described vinyon inner tube 1 is the continuous solid wall pipe formed by upper lamellar polyethylene tape, bottom sheet shaped polyethylene band and middle glass material strip spiral winding, and each adjacent ribbons edge the most mutually overlaps fusion；By removing original polyethylene backbone pipe, use glass band, it is ensured that the plastic inner pipe centre of form, away from height, reduces product cost；The cross sectional shape of described corrugated outer tube 2 is that some cellular constructions are sequentially connected with, described cellular construction includes left and right two tilting sections 21, and it is connected to the linkage section 22 between two tilting section 21 upper ends, left and right, described left and right two tilting section 21 all slopes inwardly, form up-narrow and down-wide nearly isosceles trapezoidal structure, improve fastness and the stability of structure, the lower end of described left and right two tilting section 21 is connected with inner tube 1, described linkage section 22 is the arc linkage section caved inward, and be connected by transition arc 23 between linkage section 22 with left and right two tilting section 21, improve the pole inertia of tubing away from, thus improve the ring stiffness of tubing.
The inner surface of described vinyon inner tube 1 is provided with compound plastic film layer 3；Preferably, described compound plastic film layer 3 is the curtain coating co-extrusion film of polyester layer (PET) and the nylon layer (PA) being solidificated in described vinyon inner tube, compound plastic film layer is in addition to combining with vinyon inner tube and bearing the hydraulic pressure stress with minimizing tubing, the combination between polyester layer (PET) and nylon layer (PA) can also be made more firm, fit more uniform, material stress is more uniform, is of value to drawing and forming；By using curtain coating co-extrusion mode, it is not necessary to other adhesive layer, reduce the integral thickness of compound plastic film so that compound plastic film can be made the thinnest, the lightest after increasing polyester layer (PET)；There is higher impact strength and folding quality.
There are oxidation prevention layer 4, described oxidation prevention layer 4 to use EVOH high barrier material to make outside described corrugated outer tube, it is possible to effectively starvation, prevent oxygen from extending into steel wire further, can effectively prevent steel wire from aoxidizing, improve the service life of multiple tube.The outside of described oxidation prevention layer 4 is additionally provided with continuous fiber prepreg tape, described continuous fiber prepreg tape is formed by laser action welding with the multilamellar continuous fiber prepreg tape of longitudinally staggered winding by hoop, improve the compression resistance of product and wear-resistant effect, extend service life, improve product quality.Described continuous fiber is the one in glass fibre, basalt fibre or carbon fiber.
Claims (2)
1. an exoskeletal pipe polyethylene double-wall corrugated pipe, it is characterized in that: include vinyon inner tube and corrugated outer tube, described vinyon inner tube is the continuous solid wall pipe formed by upper lamellar polyethylene tape, bottom sheet shaped polyethylene band and middle glass material strip spiral winding, and each adjacent ribbons edge the most mutually overlaps fusion；The cross sectional shape of described corrugated outer tube is that some cellular constructions are sequentially connected with, described cellular construction includes left and right two tilting sections and is connected to the linkage section between tilting section upper end, described left and right two, described left and right two tilting section 21 all slopes inwardly, form up-narrow and down-wide nearly isosceles trapezoidal structure, the lower end of described left and right two tilting section is connected with inner tube, described linkage section is the arc linkage section caved inward, and is connected by transition arc between described linkage section with described left and right two tilting section.
One the most according to claim 1 exoskeletal pipe polyethylene double-wall corrugated pipe, it is characterized in that: outside described corrugated outer tube, have oxidation prevention layer, described oxidation prevention layer is EVOH high barrier material layer, the outside of described oxidation prevention layer is provided with continuous fiber prepreg tape, and described continuous fiber prepreg tape is formed by laser action welding with the multilamellar continuous fiber prepreg tape of longitudinally staggered winding by hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451449.4U CN205618851U (en) | 2016-05-18 | 2016-05-18 | Exoskeletal tub of polyethylene double -walled bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451449.4U CN205618851U (en) | 2016-05-18 | 2016-05-18 | Exoskeletal tub of polyethylene double -walled bellows |
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| Publication Number | Publication Date |
|---|---|
| CN205618851U true CN205618851U (en) | 2016-10-05 |
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| CN201620451449.4U Active CN205618851U (en) | 2016-05-18 | 2016-05-18 | Exoskeletal tub of polyethylene double -walled bellows |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396649A (en) * | 2020-03-25 | 2020-07-10 | 上海英泰塑胶股份有限公司 | Arc preimpregnation band plate reinforcing winding bellows |
-
2016
- 2016-05-18 CN CN201620451449.4U patent/CN205618851U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396649A (en) * | 2020-03-25 | 2020-07-10 | 上海英泰塑胶股份有限公司 | Arc preimpregnation band plate reinforcing winding bellows |
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