POE (Polyolefin Elastomer) polymer compression-resistant and heat-resistant steel

The POE high molecular anti-pressure and heat-resistant steel wire mesh composite water pipe addresses thermal expansion issues by integrating multiple bonded layers, enhancing durability and resistance to internal pressures and corrosion.

CN223105512UActive Publication Date: 2025-07-15YUNNAN SHITUO PIPE IND CO LTD
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Patent Information

Application Number
CN202422112619.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-07-15
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

Due to the large difference in thermal expansion coefficients of metals and non-metallic materials, existing composite pipes are prone to defects when changing ambient temperature and medium temperature, and have a short service life.

Method used

The POE polymer compression-resistant and heat-resistant steel wire mesh skeleton composite water pipe structure is adopted, including the inner layer, the steel wire reinforcement layer, the heat insulation layer and the wear-resistant layer. It is connected by the adhesive layer to form a stable composite structure. The inner layer is high-density polyethylene material, the steel wire reinforcement layer is a high-strength steel wire spiral wound mesh skeleton, the insulation layer is an asbestos mesh, and the wear-resistant layer is a modified polyolefin vertical elastomer or polysiloxane material, which enhances the pressure, deformation and high temperature resistance of the pipeline.

Benefits of technology

It improves the pressure bearing capacity and deformation resistance of the pipeline, enhances the overall rigidity and sealing of the pipeline, prevents separation between layers, extends the service life, and improves the resistance to corrosive media.

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Abstract

The utility model relates to a POE (Polyolefin Elastomer) polymer compression-resistant heat-resistant steel wire mesh framework composite water pipe, and belongs to the technical field of The composite material mainly comprises an inner layer, a first bonding layer, a steel wire reinforcement layer, a second bonding layer, a heat insulation layer, a third bonding layer and a wear-resistant layer, the steel wire reinforcing layer not only improves the loading capacity of the pipeline, but also can increase the rigidity and deformation resistance of the pipeline to a certain extent, so that the pipeline can bear higher working pressure and more complex working conditions, and the inner layer mainly undertakes the fluid conveying task and needs to have good sealing performance and fluid compatibility. The inner layer and the heat insulation layer increase the overall high-temperature-resistant function of the composite water pipe, and the first bonding layer, the second bonding layer and the third bonding layer are arranged between the inner layer and the steel wire wall increasing layer, between the steel wire reinforcing layer and the heat insulation layer and between the heat insulation layer and the wear-resistant layer correspondingly, so that the composite water pipe can bear large pressure in the pipe and is not afraid of corrosion of corrosive media in the pipe; and the quality and the reliability of the product are improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of pipe materials, and particularly relates to a POE polymer compression-resistant and heat-resistant steel wire mesh skeleton composite water pipe. Background Art

[0002] Pipes are mainly used for transporting media such as domestic water, gas, industrial fluids, etc. Currently, common pipes include steel pipes and plastic pipes. Among them, steel pipes are heavy, inconvenient to install, and have poor corrosion resistance; plastic pipes are prone to cracking, insufficient in strength and rigidity, and poor in impact resistance. Due to the respective deficiencies of steel pipes and plastic pipes, the overall service life of pipes is short. Composite pipes can not only overcome the respective disadvantages of steel pipes and plastic pipes but also maintain their respective advantages.

[0003] With the development of composite pipes, there is a wide variety of steel-plastic composite pipes in China. However, due to the large difference in the thermal expansion coefficients of metal and non-metal materials, with the change of environmental temperature and medium temperature, the existing composite pipes are prone to protrusion or defects, resulting in a relatively short overall service life of the pipes. Summary of the Invention

[0004] In order to overcome the problem that due to the large difference in the thermal expansion coefficients of metal and non-metal materials, with the change of environmental temperature and medium temperature, the existing composite pipes are prone to protrusion or defects, resulting in a relatively short overall service life of the pipes, the utility model provides a POE polymer compression-resistant and heat-resistant steel wire mesh skeleton composite water pipe; the steel wire reinforcement layer improves the pressure-bearing capacity of the pipeline. The inner layer mainly undertakes the task of fluid transportation and needs to have good sealing performance and fluid compatibility. The inner layer and the heat insulation layer increase the overall high-temperature resistance function of the composite water pipe. The first adhesive layer, the second adhesive layer, and the third adhesive layer enable this product to not only withstand large pressures inside the pipe but also be resistant to the erosion of corrosive media inside the pipe, improving the quality and reliability of this product.

[0005] To achieve the above object, the utility model is realized by the following technical solutions: The POE polymer compression-resistant and heat-resistant steel wire mesh skeleton composite water pipe mainly includes an inner layer, a first adhesive layer, a steel wire reinforcement layer, a second adhesive layer, a heat insulation layer, a third adhesive layer, and a wear-resistant layer, which are successively arranged from the inside to the outside as the inner layer, the first adhesive layer, the steel wire reinforcement layer, the second adhesive layer, the heat insulation layer, the third adhesive layer, and the wear-resistant layer. The inner layer and the steel wire reinforcement layer are bonded into one body through the first adhesive layer, the steel wire reinforcement layer and the heat insulation layer are bonded into one body through the second adhesive layer, and the heat insulation layer and the wear-resistant layer are bonded into one body through the third adhesive layer.

[0006] The inner layer is made of high-density polyethylene material.

[0007] The first adhesive layer, the second adhesive layer, and the third adhesive layer are HDPE modified bonding resins.

[0008] The steel wire reinforcement layer is a reticular skeleton structure formed by left and right spiral winding of high-strength steel wires.

[0009] The heat insulation layer is an asbestos mesh.

[0010] The wear-resistant layer is made of modified polyolefin elastomer or polysiloxane or ultra-high molecular weight polyethylene material.

[0011] Advantages of the present utility model:

[0012] The steel wire reinforcement layer not only improves the pressure-bearing capacity of the pipeline, but also can increase the rigidity and anti-deformation ability of the pipeline to a certain extent, enabling it to withstand higher working pressures and more complex working conditions. The inner layer mainly undertakes the task of fluid transportation and needs to have good sealing performance and fluid compatibility. The inner layer and the heat insulation layer increase the overall high-temperature resistance function of the composite water pipe. A first bonding layer, a second bonding layer, and a third bonding layer are respectively provided between the inner layer and the steel wire reinforcement layer, between the steel wire reinforcement layer and the heat insulation layer, and between the heat insulation layer and the wear-resistant layer, making the product not only able to withstand large pressures inside the pipe, but also not afraid of the erosion of corrosive media inside the pipe, improving the quality and reliability of the product. Description of the drawings

[0013] Figure 1 is an isometric schematic diagram of the present utility model.

[0014] Figure 2 is a three-dimensional schematic diagram of the present utility model.

[0015] Figure 3 is a partial cross-sectional schematic diagram of the present utility model. Detailed implementation manners

[0016] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the preferred embodiments of the present utility model will be described in detail below with reference to the drawings for the convenience of those skilled in the art to understand.

[0017] The present utility model discloses a POE polymer pressure-resistant and heat-resistant steel wire mesh skeleton composite water pipe. The POE polymer pressure-resistant and heat-resistant steel wire mesh skeleton composite water pipe mainly includes an inner layer 1, a first bonding layer 2, a steel wire reinforcement layer 3, a second bonding layer 4, a heat insulation layer 5, a third bonding layer 6, and a wear-resistant layer 7. From the inside to the outside, they are the inner layer 1, the first bonding layer 2, the steel wire reinforcement layer 3, the second bonding layer 4, the heat insulation layer 5, the third bonding layer 6, and the wear-resistant layer 7. The inner layer 1 and the steel wire reinforcement layer 3 are bonded together through the first bonding layer 2, the steel wire reinforcement layer 3 and the heat insulation layer 5 are bonded together through the second bonding layer 4, and the heat insulation layer 5 and the wear-resistant layer 7 are bonded together through the third bonding layer 6.

[0018] The inner layer 1 is made of high-density polyethylene material; high-density polyethylene has good corrosion resistance, chemical resistance and temperature resistance, and is an ideal material for making the inner layer of the pipeline. The inner layer 1 mainly undertakes the task of fluid transportation and needs to have good sealing performance and fluid compatibility.

[0019] The first bonding layer 2, the second bonding layer 4, and the third bonding layer 6 are HDPE modified bonding resins; the HDPE modified bonding resins can tightly connect the steel wire reinforcement layer 3, the heat insulation layer 5 with the inner layer 1 and the wear-resistant layer 7 to form a stable composite material structure, preventing the occurrence of interlayer separation and delamination phenomena, and ensuring the overall strength and stability of the pipeline.

[0020] The steel wire reinforcement layer 3 is a reticular skeleton structure formed by left and right spiral winding of high-strength steel wires; the steel wire reinforcement layer 3 not only improves the pressure-bearing capacity of the pipeline, but also can increase the rigidity and anti-deformation ability of the pipeline to a certain extent, enabling it to withstand higher working pressures and more complex working conditions.

[0021] The heat insulation layer 5 is an asbestos mesh; the asbestos mesh increases the overall high-temperature resistance function of the composite water pipe.

[0022] The wear-resistant layer 7 is made of modified polyolefin elastomer or polysiloxane or ultra-high molecular weight polyethylene material; the main function of the wear-resistant layer 7 is to protect the inner layer 1 and the steel wire reinforcement layer 3 from being eroded by the external environment, such as ultraviolet rays, chemical substances in the soil, etc. At the same time, it also provides external support and protection for the pipe. These materials such as modified polyolefin elastomer, polysiloxane, and ultra-high molecular weight polyethylene are treated by special processes and have good abrasion resistance and processing performance, which can significantly improve the wear resistance of the pipe when transporting slurry and solid media, thereby extending the service life of the pipe.

[0023] Working process:

[0024] The POE polymer compression-resistant and heat-resistant steel wire mesh skeleton composite water pipe consists of an inner layer 1, a first bonding layer 2, a steel wire reinforcement layer 3, a second bonding layer 4, a heat insulation layer 5, a third bonding layer 6, and a wear-resistant layer 7 from the inside out. The inner layer 1 mainly undertakes the task of fluid transportation and needs to have good sealing performance and fluid compatibility. The inner layer 1 is made of high-density polyethylene material. High-density polyethylene has good corrosion resistance, chemical resistance, and temperature resistance, and is an ideal material for making the inner layer of the pipeline. The steel wire reinforcement layer 3 is a reticular skeleton structure formed by the left and right spiral winding of high-strength steel wires. The steel wire reinforcement layer 3 not only improves the pressure-bearing capacity of the pipeline but also increases the rigidity and anti-deformation ability of the pipeline to a certain extent, enabling it to withstand higher working pressures and more complex working conditions. The heat insulation layer 5 is an asbestos mesh, and the asbestos mesh increases the overall high-temperature resistance function of the composite water pipe. The main function of the wear-resistant layer 7 is to protect the inner layer 1 and the steel wire reinforcement layer 3 from the erosion of the external environment, such as ultraviolet rays, chemical substances in the soil, etc. At the same time, it also provides external support and protection for the pipe. The wear-resistant layer 7 is made of modified polyolefin vertical elastomer or polysiloxane or ultra-high molecular weight polyethylene material. These materials are processed by special processes and have good abrasion resistance and processing performance, which can significantly improve the wear resistance of the pipe when transporting slurry and solid media, thereby extending the service life of the pipe. A first bonding layer 2, a second bonding layer 4, and a third bonding layer 6 are respectively provided between the inner layer 1 and the steel wire reinforcement layer 3, the steel wire reinforcement layer 3 and the heat insulation layer 5, and the heat insulation layer 5 and the wear-resistant layer 7, enabling this product to not only withstand the large pressure inside the pipe but also not be afraid of the erosion of the corrosive medium inside the pipe, improving the quality and reliability of this product. The first bonding layer 2, the second bonding layer 4, and the third bonding layer 6 are HDPE-modified bonding resins. The HDPE-modified bonding resins can tightly connect the steel wire reinforcement layer 3, the heat insulation layer 5 with the inner layer 1 and the wear-resistant layer 7 to form a stable composite material structure, preventing the occurrence of interlayer separation and delamination phenomena and ensuring the overall strength and stability of the pipeline.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. The POE polymer compression-resistant and heat-resistant steel wire mesh framework composite water pipe is characterized in that: The described POE polymer compressive heat-resistant steel wire mesh skeleton composite water pipe comprises an inner layer (1), a first bonding layer (2), a steel wire reinforcement layer (3), a second bonding layer (4), a heat insulation layer (5), a third bonding layer (6), and a wear-resistant layer (7). From the inside out, they are successively the inner layer (1), the first bonding layer (2), the steel wire reinforcement layer (3), the second bonding layer (4), the heat insulation layer (5), the third bonding layer (6), and the wear-resistant layer (7). The inner layer (1) and the steel wire reinforcement layer (3) are bonded into one body through the first bonding layer (2), the steel wire reinforcement layer (3) and the heat insulation layer (5) are bonded into one body through the second bonding layer (4), and the heat insulation layer (5) and the wear-resistant layer (7) are bonded into one body through the third bonding layer (6).

2. The POE polymer compression-resistant and heat-resistant steel wire mesh framework composite water pipe according to claim 1, wherein: The described inner layer (1) is made of high-density polyethylene material.

3. The POE polymer compression-resistant and heat-resistant steel wire mesh framework composite water pipe according to claim 1 or 2, characterized in that: The described first bonding layer (2), second bonding layer (4), and third bonding layer (6) are HDPE modified bonding resins.

4. The POE polymer compression-resistant and heat-resistant steel wire mesh skeleton composite water pipe according to claim 1 or 2, wherein: The described steel wire reinforcement layer (3) is a reticular skeleton structure formed by left and right spiral winding of high-strength steel wires.

5. The POE polymer compression-resistant and heat-resistant steel wire mesh skeleton composite water pipe according to claim 1 or 2, characterized in that: The described heat insulation layer (5) is an asbestos mesh.

6. The POE polymer compression-resistant and heat-resistant steel wire mesh framework composite water pipe according to claim 1 or 2, characterized in that: The described wear-resistant layer (7) is made of modified polyolefin vertical elastomer or polysiloxane or ultra-high molecular weight polyethylene material.