Stretch-resistant anti-static composite plastic pipe

Abstract

The utility model discloses an anti-stretching anti-static composite plastic pipe which comprises an inner pipe and an outer pipe, and a steel wire framework is embedded in the inner pipe. The outer pipe is coaxially arranged on the outer side of the inner pipe in a sleeving mode, a copper wire and a plurality of warp wires are arranged in the outer pipe, the length direction of the copper wire and the length direction of the warp wires are parallel to the axial direction of the outer pipe, and the warp wires are arranged in the circumferential direction of the outer pipe. Due to the arrangement of the copper wires, the mechanical strength of the plastic pipe can be improved, and the anti-static function can be achieved; due to the arrangement of the multiple warps, the axial strength of the plastic pipe is further improved, creep deformation of the plastic pipe is effectively restrained, the flexibility of the plastic pipe can be kept, and laying is convenient; due to the arrangement of the steel wire framework, the plastic pipe can still keep stable after being used for a long time, and the internal and external corrosion resistance of the plastic pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plastic pipe technical field, especially in a kind of tensile anti-static composite plastic pipe. BACKGROUND

[0002] Oily substance is easy to generate static electricity due to the friction of pipeline inner wall rough, flow rate too fast, filter or elbow component in the conveying process, when static electricity accumulates to a certain amount, it can cause static discharge, thereby igniting oil gas vapor, leading to fire or explosion.

[0003] In order to prevent static electricity from causing fire and explosion, conductive filler is usually added in plastic conveying pipeline to enhance its conductivity, thereby effectively leading out static electricity. However, in order to achieve sufficient electrical conductivity, 10%-30% of filler needs to be filled, which will significantly reduce the flexibility and impact resistance of the material, leading to the decline of its mechanical properties. Moreover, the processing difficulty is improved, and if the filler is not evenly dispersed or does not form a continuous network, the electrical conductivity may not meet the standard. SUMMARY

[0004] In view of the above problems, the utility model provides a kind of tensile anti-static composite plastic pipe to solve the mechanical property decline of the existing oil conveying plastic pipe with conductive filler and the problem of non-standard electrical conductivity caused by processing difficulty.

[0005] The utility model is realized as follows:

[0006] A kind of tensile anti-static composite plastic pipe, comprising:

[0007] Inner tube, steel wire framework is inlaid in the inner tube;

[0008] Outer tube, coaxial sleeve is arranged on the outer side of the inner tube, copper wire and multiple warp yarns are arranged in the outer tube, the length direction of copper wire and multiple warp yarns is parallel to the axial direction of the outer tube, and multiple warp yarns are arranged along the circumferential direction of the outer tube.

[0009] Further, the material of the inner tube and the outer tube is the same, which is polyvinyl chloride or high polymerization degree vinyl chloride resin powder with a polymerization degree of 2000-3000.

[0010] Further, the inner tube and the outer tube are designed as one piece.

[0011] Further, the inner diameter of the inner tube is 20-110mm, and the outer diameter of the outer tube is 25-130mm.

[0012] Further, the number of warp yarns is 9-30.

[0013] Further, the material of the warp yarns is polyester industrial filament.

[0014] Further, the steel wire framework is a spiral galvanized steel wire.

[0015] Further, the steel wire framework is a cylindrical spiral line, and the spiral axis of the steel wire framework coincides with the axis of the inner tube.

[0016] Further, the copper wires and the plurality of warp wires are arranged uniformly along the circumference of the outer tube.

[0017] The anti-stretching and anti-static composite plastic pipe has the advantages that the copper wires can improve the mechanical strength of the plastic pipe and prevent static electricity, the plurality of warp wires can further improve the axial strength of the plastic pipe, effectively inhibit the creep deformation of the plastic pipe, maintain the flexibility of the plastic pipe for convenient laying, the steel wire framework can keep the plastic pipe stable after long-time use, and improve the internal and external corrosion resistance of the plastic pipe.

[0018] The anti-stretching and anti-static composite plastic pipe has the advantages that the copper wires can improve the mechanical strength of the plastic pipe and prevent static electricity, the plurality of warp wires can further improve the axial strength of the plastic pipe, effectively inhibit the creep deformation of the plastic pipe, maintain the flexibility of the plastic pipe for convenient laying, the steel wire framework can keep the plastic pipe stable after long-time use, and improve the internal and external corrosion resistance of the plastic pipe. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of a three-dimensional structure of the anti-stretching and anti-static composite plastic pipe;

[0020] Figure 2 is a schematic view of an internal three-dimensional structure of the anti-stretching and anti-static composite plastic pipe;

[0021] Figure 3 is a sectional view of the anti-stretching and anti-static composite plastic pipe.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, inner tube; 11, steel wire framework; 2, outer tube; 21, copper wire; 22, warp wire. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the anti-stretching and anti-static composite plastic pipe are described clearly and completely below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0025] As shown in Figures 1-3 the anti-stretching and anti-static composite plastic pipe, wherein Figure 2In order to be able to show the internal structure of the application, the outer tube and the inner tube are shortened by a certain length respectively to show the internal structure, the utility model discloses inner tube 1 and outer tube 2, the steel wire framework 11 is arranged in inner tube 1, the outer tube 2 coaxially covers the outside of inner tube 1, the copper wire 21 and the plurality of warp yarns 22 are arranged in the outer tube 2, the length direction of copper wire 21 and the plurality of warp yarns 22 all are parallel with the axial direction of outer tube 2, and the plurality of warp yarns 22 are arranged along the circumferential direction of outer tube 2.Copper wire 21 is embedded in outer tube 2 to form the conductive path, and static electricity will be rapidly conducted to the grounding end to avoid accumulation, so that good conductive stability is formed, and the effect of preventing static electricity is achieved.Compared with adding conductive filler in the plastic tube, copper wire 21 is embedded in outer tube 2, the production process is simple, and the mechanical strength of outer tube 2 can be improved, and when installing, the outer tube 2 is softened by heating, so that installation is facilitated.

[0026] The inner tube 1 and the outer tube 2 are integrally formed, the material of the inner tube 1 and the outer tube 2 is the same, and the material of the inner tube 1 and the outer tube 2 is polyvinyl chloride or high polymerization degree chlorinated vinyl resin powder with a polymerization degree of 2000-3000.Polyvinyl chloride has high strength rigidity (8kN / m²), the axial tensile strength can reach 35-55MPa, has corrosion resistance and weather resistance, and the outdoor service life reaches 50 years.High polymerization degree chlorinated vinyl resin powder with a polymerization degree of 2000-3000 as a special modified PVC, compared with ordinary PVC, the mechanical strength is improved by more than 30%, the tensile strength is greater than 60Mpa, and the fatigue life is prolonged by 3-5 times.

[0027] The steel wire framework 11 is embedded in the inner tube 1, the steel wire framework 11 is a cylindrical spiral line, and the spiral axial direction of the steel wire framework 11 coincides with the axial direction of the inner tube 1.The reinforcing structure of the steel wire framework 11 greatly improves the pressure-bearing capacity of the plastic tube, so that the linear expansion coefficient of the plastic tube is close to that of steel, and the plastic tube is particularly suitable for high-pressure conveying systems.The anti-creep performance of the steel wire framework 11 enables the plastic tube to remain stable after long-term use.Moreover, the steel wire framework 11 is galvanized steel wire, which improves the internal and external corrosion resistance of the plastic tube.

[0028] The inner diameter of the inner tube 1 is 20-110mm, the outer diameter of the outer tube 2 is 25-130mm, and the number of the warp filaments 22 is 9-30. The anti-pressure capacity of the composite plastic pipe is 0.3-0.5Mpa, the burst pressure is 0.8-1.5Mpa, and the applicable temperature is -15-65℃. The copper filaments 21 and the plurality of warp filaments 22 are arranged in a uniform distribution along the circumference of the outer tube 2, that is, the distance between two adjacent warp filaments 22 and the distance between the warp filaments 22 and the copper filaments 21 are all equal. In the embodiment, the number of the copper filaments 21 is one, but it is only for illustration, and can be two or more according to actual needs, which is not limited herein. The plurality of warp filaments 22 are arranged for axial tensile resistance of the plastic pipe, and as the inner diameter of the plastic pipe increases, the number of the warp filaments 22 also increases to play a role in axial tensile resistance. The material of the warp filaments 22 is polyester industrial filament, and the elastic modulus of the polyester industrial filament is as high as 30Gpa, and the breaking stress reaches 400Mpa. The plurality of polyester industrial filaments further improve the axial strength of the plastic pipe, so that the axial tensile strength is more than 3 times that of the ordinary plastic pipe, effectively inhibits the creep deformation of the plastic pipe, and maintains the flexibility of the plastic pipe for convenient laying.

[0029] In use, the anti-tensile and anti-static composite plastic pipe can improve the mechanical strength of the plastic pipe and play a role in anti-static through the copper filaments 21, and the plurality of warp filaments 22 further improve the axial strength of the plastic pipe, so that the axial tensile strength is more than 3 times that of the ordinary plastic pipe, effectively inhibits the creep deformation of the plastic pipe, and maintains the flexibility of the plastic pipe for convenient laying. The steel wire framework 11 can keep the plastic pipe stable after long-time use and improve the internal and external corrosion resistance of the plastic pipe.

[0030] The utility model discloses a preferable specific embodiment for realizing the above-mentioned purpose, but it is not used to limit the structural features of the utility model, and any person skilled in the art should know that any easy-to-think change or modification is possible under the technical spirit of the utility model, and all are covered by the patent application range of the utility model.

Claims

1. A stretch resistant anti-static composite plastic pipe, characterized in that, The utility model relates to a kind of steel wire reinforced copper pipe, including: Inner tube, steel wire framework is embedded in the inner tube; Outer tube, coaxially cover the outside of the inner tube, copper wire and multiple warp yarns are arranged in the outer tube, the length direction of copper wire and multiple warp yarns is parallel with the axial direction of the outer tube, and multiple warp yarns are arranged along the circumferential direction of the outer tube.

2. The anti-static stretch resistant composite plastic tube of claim 1, wherein, The material of the inner tube and the outer tube is the same, which is polyvinyl chloride or high polymerization degree vinyl chloride resin powder with a polymerization degree of 2000-3000.

3. The anti-static stretch resistant composite plastic tube of claim 2, wherein, The inner tube and the outer tube are designed as one piece.

4. The anti-static stretch resistant composite plastic tube of claim 1, wherein, The inner diameter of the inner tube is 20-110 mm, and the outer diameter of the outer tube is 25-130 mm.

5. The anti-static, stretch-resistant, composite plastic tube of claim 4, wherein, The number of warp yarns is 9-30.

6. The anti-static, stretch-resistant, composite plastic tube of claim 1, wherein, The material of the warp yarns is polyester industrial filament.

7. The anti-static, stretch-resistant, composite plastic tube according to claim 1 or 2, wherein, The steel wire framework is spiral galvanized steel wire.

8. The anti-static stretch resistant composite plastic tube of claim 7, wherein, The steel wire framework is a cylindrical spiral, and the spiral axial direction of the steel wire framework coincides with the axial direction of the inner tube.

9. The anti-static stretch resistant composite plastic tube of claim 1, wherein, The copper wire and multiple warp yarns are uniformly arranged along the circumferential direction of the outer tube.

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