Steel curtain rope belt reinforced polyethylene high-pressure wear-resistant composite pipe for water delivery

Abstract

The utility model relates to the technical field of composite pipes, and discloses a steel curtain rope belt reinforced polyethylene high-pressure wear-resistant composite pipe for water delivery, which comprises a wear-resistant layer, the wear-resistant layer is made of high-molecular polyethylene materials, a structural layer is adhered to the outer surface of the wear-resistant layer, the structural layer adopts a 100-grade polyethylene core pipe, a reinforcing layer is adhered to the outer surface of the structural layer, and the steel curtain rope belt reinforced polyethylene high-pressure wear-resistant composite pipe is arranged on the outer surface of the reinforcing layer. An outer layer is extruded on the outer surface of the reinforcing layer through hot melting, the outer layer is made of a 100-grade polyethylene material, the outer surface of the outer layer is covered with an outer protective layer through extrusion, and the outer protective layer is made of a polypropylene material. According to the utility model, through the arrangement of the wear-resistant layer, the enhancement layer and the outer protective layer, the pressure resistance of the pipeline can be effectively improved to resist the damage of a water hammer, so that the reliability and the wear resistance of the pipe are improved, and the structural layer is protected from being corroded by sunlight ultraviolet rays by sacrificing the outer protective layer, so that the pipeline can adapt to various environments; the service life of the composite pipe is prolonged, so that the replacement frequency is reduced and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of composite pipes, in particular to a steel curtain rope reinforced polyethylene high-pressure anti-wear composite pipe for water delivery. Background Art

[0002] Composite pipes for water delivery refer to pipe products used in water delivery systems. They are usually made of different types of materials to meet the performance requirements of water delivery systems for high strength, pressure resistance, corrosion resistance, etc. Common composite pipes for water delivery include glass fiber reinforced plastic composite pipes, polyethylene steel curtain composite pipes, polyethylene pipes reinforced with steel hoops, etc.

[0003] Although the existing composite pipes use multi-level polyethylene steel curtain composite pipes, the pit pressure capacity of the composite pipes is either weak or their wear resistance is poor, and the pipes are easily corroded by sunlight and ultraviolet rays. The pipes cannot meet the requirements of water transportation, have a short service life, and require multiple repairs or replacements, which increases costs. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a steel curtain rope reinforced polyethylene high-pressure wear-resistant composite pipe for water delivery, aiming to improve the problems of the existing composite pipes having a short service life, being unable to be used for a long time, and requiring multiple repairs and replacements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a steel curtain rope reinforced polyethylene high-pressure anti-wear composite pipe for water supply, comprising an anti-wear layer, the outer surface of the anti-wear layer is bonded to the structural layer, the outer surface of the structural layer is bonded to the reinforcing layer, the outer surface of the reinforcing layer is extruded by hot-melt extrusion of an outer layer, and the outer surface of the outer layer is covered with an outer protective layer by extrusion.

[0006] Preferably, the anti-wear layer is made of high molecular weight polyethylene material.

[0007] Preferably, the structural layer adopts a grade 100 polyethylene core tube.

[0008] Preferably, the reinforcement layer is made of maleic anhydride grafted polyethylene pre-impregnated steel cord belt.

[0009] Preferably, the outer layer is made of 100 grade polyethylene material and is extruded.

[0010] Preferably, the outer protective layer is made of polypropylene material and is extruded.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the utility model, through the setting of the anti-wear layer, the reinforcement layer and the outer protective layer, the anti-wear layer of the high molecular weight polyethylene can make the pipeline have good corrosion resistance, and can prevent the inner wall of the pipeline from being corroded by various acidic and alkaline substances; the reinforcement layer of the steel curtain rope made of maleic anhydride grafted polyethylene pre-impregnated can improve the pressure resistance and wear resistance of the pipeline and extend the service life of the pipeline. The outer layer of 100 grade polyethylene can increase the wear resistance of the composite pipe and can effectively resist external wear and impact. The polypropylene outer protective layer can resist the influence of external environmental factors such as ultraviolet rays and oxidation. This setting can effectively increase the pressure resistance of the pipeline to resist the damage of water hammer, thereby improving the reliability and wear resistance of the pipe, and protecting the structural layer from corrosion by sunlight ultraviolet rays by sacrificing the outer protective layer, so that the pipeline can adapt to various environments and extend the service life of the composite pipe, thereby reducing the number of replacements and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic cross-sectional view of the steel cord reinforced polyethylene high-pressure anti-wear composite pipe for water delivery proposed by the utility model.

[0014] Legend:

[0015] 1. Anti-wear layer; 2. Structural layer; 3. Reinforcement layer; 4. Outer layer; 5. Outer protective layer. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings of the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Reference Figure 1 The utility model provides an embodiment: a polyethylene high-pressure anti-wear composite pipe reinforced with steel curtain rope for water transport, comprising an anti-wear layer 1, a structural layer 2 bonded to the outer surface of the anti-wear layer 1, the anti-wear layer 1 adopts a polyethylene material with a molecular weight of more than 2.5 million, the structural layer 2 adopts a 100-grade polyethylene core tube, the outer surface of the structural layer 2 is bonded to a reinforcing layer 3, the reinforcing layer 3 adopts a steel curtain rope made of maleic anhydride grafted polyethylene prepreg, and the steel curtain rope is formed by continuous spiral winding at an angle of about 54.45, the outer surface of the reinforcing layer 3 is extruded into an outer layer 4 by hot melt, the outer layer 4 adopts 100-grade polyethylene and is extruded, and the outer surface of the outer layer 4 is covered with an outer protective layer 5 by extrusion, the outer protective layer 5 adopts polypropylene and is extruded.

[0018] Specifically, the anti-wear layer 1 is made of polyethylene material with a molecular weight of more than 2.5 million. Polyethylene with a molecular weight of more than 2.5 million is high molecular weight polyethylene. Therefore, compared with other materials, the anti-wear layer 1 has good stability and weather resistance, and can be used stably for a long time in harsh environments. It also has good corrosion resistance, can effectively resist the erosion of chemical substances to the pipeline, and extend the service life of the pipeline. In addition, the high molecular weight polyethylene material is non-toxic and tasteless, has good environmental protection performance, will not affect the quality of the transported water, and meets environmental protection requirements. The structural layer 2 of 100-grade PE polyethylene material has high strength and hardness, can provide the bearing capacity and structural stability of the pipeline, has good corrosion resistance and lubricity, can ensure the smoothness of the pipeline interior, and reduce the resistance and energy loss of the fluid when passing through the pipeline; the steel cord is formed by continuous spiral winding at an angle of about 54.45. The steel cord pre-impregnated with maleic anhydride grafted polyethylene can effectively enhance the wear resistance of the reinforcing layer 3, improve the pressure resistance and wear resistance of the pipeline, and extend the service life of the pipeline. The maleic anhydride grafted polyethylene pre-impregnation treatment can effectively improve the corrosion resistance of the steel cord The reinforcement layer 3 can better resist chemical corrosion and oxidative corrosion and protect the internal structure of the pipeline; the 100-grade polyethylene outer layer 4 has good chemical corrosion resistance and can effectively resist the erosion of external corrosive media such as acid, alkali, and salt water. Its surface is smooth and has good wear resistance, which can effectively resist external wear and impact; the polypropylene outer sheath 5 has good high temperature resistance and can maintain stability in a high temperature environment. It is suitable for the protection of high temperature medium pipelines, and the polypropylene outer sheath 5 has good weather resistance and can resist the influence of external environmental factors such as ultraviolet rays and oxidation, and maintain a smooth surface for a long time. This setting can make the pipeline have good corrosion resistance and pressure resistance, can meet the requirements of pipeline water transportation, extend the life of the pipeline, and thus reduce pipeline replacement.

[0019] Working principle: The anti-wear layer 1 uses high molecular weight polyethylene material to increase the corrosion resistance of the pipeline and prevent the pipeline from various acid and alkali corrosion. The structural layer 2 uses 100 grade polyethylene material to increase the bearing capacity of the pipeline. The reinforcement layer 3 can effectively enhance the wear resistance of the pipeline and improve the pipeline's pressure resistance and wear resistance. The 100 grade polyethylene outer layer 4 has good chemical corrosion resistance and can effectively resist the erosion of external corrosive media such as acids, alkalis, and salt water. The polypropylene outer sheath 5 has good high temperature resistance and can maintain stability in high temperature environments. It is suitable for the protection of high temperature medium pipelines and can resist the influence of external environmental factors such as ultraviolet rays and oxidation.

[0020] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel cord reinforced polyethylene high-pressure anti-wear composite pipe for water transport, comprising an anti-wear layer (1), characterized in that: The outer surface of the anti-wear layer (1) is bonded to the structural layer (2), the outer surface of the structural layer (2) is bonded to the reinforcing layer (3), the outer surface of the reinforcing layer (3) is extruded into an outer layer (4) by hot melt, and the outer surface of the outer layer (4) is covered with an outer protective layer (5) by extrusion.

2. The steel cord reinforced polyethylene high pressure anti-wear composite pipe for water delivery according to claim 1, characterized in that: The anti-wear layer (1) is made of high molecular weight polyethylene material.

3. The steel cord reinforced polyethylene high pressure anti-wear composite pipe for water delivery according to claim 1, characterized in that: The structural layer (2) adopts a grade 100 polyethylene core tube.

4. The steel cord reinforced polyethylene high pressure anti-wear composite pipe for water delivery according to claim 1, characterized in that: The reinforcing layer (3) is made of a steel cord belt pre-impregnated with maleic anhydride grafted polyethylene.

5. The steel cord reinforced polyethylene high pressure anti-wear composite pipe for water delivery according to claim 1, characterized in that: The outer layer (4) is made of 100 grade polyethylene material and is extruded.

6. The steel cord reinforced polyethylene high pressure anti-wear composite pipe for water delivery according to claim 1, characterized in that: The outer protective layer (5) is made of polypropylene material and is extruded.

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