Low-temperature-resistant and impact-resistant polyethylene pipe

By using a multi-layered composite structure and low-temperature resistant materials, the problem of pipes being prone to cracking under external impact and low temperatures has been solved, achieving higher impact resistance and low-temperature resistance, and extending service life.

CN223754863UActive Publication Date: 2026-01-02LIAONING BAOTONG ELECTRIC POWER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520585235.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-01-02
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing pipes are prone to cracking when subjected to external impacts or in low-temperature environments, leading to safety accidents, as they lack sufficient impact resistance and low-temperature resistance.

Method used

It adopts a multi-layer composite structure, including a polypropylene inner layer, a glass fiber layer, a rubber layer, an aluminum sheet layer, a steel wire layer, and an outer layer. The structural strength is enhanced by cross-shaped glass fiber layers, plug-in installation, and spiral steel wire layers. It uses low-temperature resistant PE material, and the outer layer is equipped with an anti-ultraviolet coating.

Benefits of technology

It improves the rigidity, strength, and impact resistance of the pipe, enhances its toughness in low-temperature environments, prevents brittle fracture, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of polyethylene pipes, in particular to a low-temperature-resistant impact-resistant polyethylene pipe which comprises a polypropylene inner layer, a glass fiber layer is installed on the outer wall of the polypropylene inner layer, a rubber layer is installed on the outer wall of the glass fiber layer, and an aluminum sheet layer is installed on the outer wall of the rubber layer. Rubber strips are installed between the aluminum sheet layers, steel wire layers are installed on the outer walls of the aluminum sheet layers, and outer layers are installed on the outer walls of the steel wire layers. According to the improved pipe, the impact-resistant and low-temperature-resistant design is adopted, the pipe is provided with the glass fiber layer, the rubber layer, the aluminum sheet layer and the steel wire layer, the glass fiber layer and the rubber layer are distributed in a crossed mode, the aluminum sheet layer and the steel wire layer are connected with the rubber layer in an inserted mode, the structure of the pipe can be enhanced, and the rigidity, strength and impact resistance of the pipe are improved; the low-temperature resistance of the pipe can be effectively improved, the pipe has better toughness in a low-temperature environment and is not prone to brittle fracture, and the service life of the pipe is effectively prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to polyethylene pipe material technical field, concretely is a kind of low temperature resistant impact polyethylene pipe material. BACKGROUND

[0002] Composite pipe is a kind of tubular product by two or more than two different properties material through specific process composite, they have wide application in petroleum, chemical industry, building, water conservancy and other fields, due to its excellent mechanical properties, corrosion resistance, high temperature resistance etc.

[0003] The inventor finds that the prior art has the following problems in the process of realizing the utility model: the structure of the existing pipe material is relatively simple, the impact resistance and low temperature resistance of the pipe material are insufficient, the pipe material is easily broken when being impacted by external force or under low temperature, leading to the occurrence of safety accidents and affecting the normal work of the pipeline. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of low temperature resistant impact polyethylene pipe materials, to solve the problem that pipe material exists inconvenient impact resistance low temperature resistance as described in the above background art. To achieve the above purpose, the utility model provides the following technical scheme: a kind of low temperature resistant impact polyethylene pipe material, including polypropylene inner layer, the outer wall of the polypropylene inner layer is equipped with glass fiber layer, the outer wall of the glass fiber layer is equipped with rubber layer, the outer wall of the rubber layer is equipped with aluminium sheet layer, rubber strip is installed between the aluminium sheet layer, the outer wall of the aluminium sheet layer is equipped with steel wire layer, the outer wall of the steel wire layer is equipped with outer layer.

[0005] Further preferably, the glass fiber layer is cross-shaped.

[0006] Further preferably, one side surface of the aluminium sheet layer is provided with an insertion block, and one side surface of the rubber layer is provided with an insertion slot with an internal size structure consistent with an external size structure of the insertion block.

[0007] Further preferably, the aluminium sheet layer is symmetrically distributed about the central axis of the polypropylene inner layer.

[0008] Further preferably, the rubber strip is symmetrically distributed about the central axis of the polypropylene inner layer.

[0009] Further preferably, the steel wire layer is spiral-shaped.

[0010] Further preferably, the surface of the outer layer is provided with an ultraviolet-resistant coating.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a low temperature resistant and impact resistant polyethylene pipe material, and the pipe material is provided with a polypropylene inner layer, a glass fiber layer, a rubber layer, an aluminum sheet layer and a steel wire layer, and the pipe material has good low temperature resistance and impact resistance. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the front view structural schematic diagram of the utility model;

[0014] Figure 2 It is the right view structural schematic diagram of the utility model;

[0015] Figure 3 It is the left view structural schematic diagram of the utility model;

[0016] Figure 4 It is the plan view structural schematic diagram of the utility model.

[0017] In the drawing: 1, polypropylene inner layer; 2, glass fiber layer; 3, rubber layer; 4, aluminum sheet layer; 5, rubber strip; 6, steel wire layer; 7, outer layer. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0019] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a kind of low temperature resistant and impact resistant polyethylene pipe material, including polypropylene inner layer 1, the outer wall of polypropylene inner layer 1 is equipped with glass fiber layer 2, the outer wall of glass fiber layer 2 is equipped with rubber layer 3, the outer wall of rubber layer 3 is equipped with aluminum sheet layer 4, rubber strip 5 is installed between aluminum sheet layer 4, the outer wall of aluminum sheet layer 4 is equipped with steel wire layer 6, the outer wall of steel wire layer 6 is equipped with outer layer 7.

[0020] In the embodiment, as shown in Figure 1 Glass fiber layer 2 is cross-shaped.

[0021] In the embodiment, as shown in Figure 2 One side surface of aluminum sheet layer 4 is equipped with plug, and one side surface of rubber layer 3 is equipped with the plug groove of internal size structure and the external size structure of the plug are consistent.

[0022] In the embodiment, as shown inFigure 2 As shown, the aluminum sheet layer 4 is symmetrically distributed about the central axis of the polypropylene inner layer 1.

[0023] In this embodiment, as shown in the figure, Figure 3 As shown, the rubber strip 5 is symmetrically distributed about the central axis of the polypropylene inner layer 1.

[0024] In this embodiment, as shown in the figure, Figure 4 As shown, the steel wire layer 6 is helical.

[0025] In this embodiment, as shown in the figure, Figure 4 As shown, the surface of the outer layer 7 is provided with an ultraviolet-resistant coating.

[0026] The use method and advantages of the utility model are as follows: the low-temperature-resistant and impact-resistant polyethylene pipe material, in use, the working process is as follows:

[0027] As shown in the figures, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, first, the pipe material can ensure the corrosion resistance of the pipeline through the polypropylene inner layer 1 in daily use, avoid the erosion of the fluid to the inner wall of the pipeline, and at the same time ensure the hygiene and non-pollution of the fluid, the glass fiber layer 2 is cross-shaped and is reinforced by epoxy resin, and the aluminum sheet layer 4 is inserted and installed with the rubber layer 3 through the insertion block and the insertion slot, the structure of the pipe material can be enhanced through the glass fiber layer 2, the rubber layer 3, the aluminum sheet layer 4 and the steel wire layer 6, the rigidity, strength and impact resistance of the pipe material are improved, and the outer layer 7 adopts low-temperature-resistant PE material, which can effectively improve the low-temperature resistance of the pipe material, the pipe material has better toughness in a low-temperature environment and is not easy to be brittle, the surface of the outer layer 7 is provided with an ultraviolet-resistant coating, so that the pipe material has the ability to resist ultraviolet rays, prevents the pipe material from aging, and prolongs the service life of the pipe material.

[0028] The basic principle, main features and advantages of the utility model are shown and described above. The technical workers in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A low-temperature resistant impact resistant polyethylene pipe comprising a polypropylene inner layer (1), characterized in that: The outer wall of the polypropylene inner layer (1) is provided with a glass fiber layer (2), the outer wall of the glass fiber layer (2) is provided with a rubber layer (3), the outer wall of the rubber layer (3) is provided with an aluminum sheet layer (4), the aluminum sheet layer (4) is provided with a rubber strip (5) between the aluminum sheet layer (4), the outer wall of the aluminum sheet layer (4) is provided with a steel wire layer (6), and the outer wall of the steel wire layer (6) is provided with an outer layer (7).

2. A low-temperature impact resistant polyethylene pipe according to claim 1, characterized in that: The glass fiber layer (2) is cross-shaped.

3. A low temperature impact resistant polyethylene pipe according to claim 1, characterized in that: One side surface of the aluminum sheet layer (4) is provided with an insertion block, and one side surface of the rubber layer (3) is provided with an insertion slot with an internal size structure consistent with an external size structure of the insertion block.

4. A low temperature impact resistant polyethylene pipe according to claim 1, characterized in that: The aluminum sheet layer (4) is symmetrically distributed about a central axis of the polypropylene inner layer (1).

5. A low temperature impact resistant polyethylene pipe according to claim 1, characterized in that: The rubber strip (5) is symmetrically distributed about the central axis of the polypropylene inner layer (1).

6. A pipe according to claim 1, wherein: The steel wire layer (6) is spiral-shaped.

7. A low-temperature impact resistant polyethylene pipe according to claim 1, characterized in that: The surface of the outer layer (7) is provided with an ultraviolet resistant coating.