Anti-freezing, wear-resistant and corrosion-resistant polyethylene pipe

Abstract

The invention relates to the technical field of polyethylene pipes, and discloses an anti-freezing, wear-resistant and corrosion-resistant polyethylene pipe which is composed of multiple layers of structures. Comprising a polyethylene base layer, a barrier layer I, a first polyethylene layer, a barrier layer II, a first polyurethane layer, a barrier layer III, a second polyethylene layer, a second polyurethane layer, a reinforced woven layer, an anti-freezing mixed layer and a corrosion-resistant mixed layer. And due to the multi-layer structural design, the use performance of the pipe in different environments is effectively improved. By wrapping the polyethylene base layer with the barrier layer, permeation of oxygen and water vapor can be effectively prevented, so that the problem of embrittlement of the pipe in a low-temperature environment is avoided. And meanwhile, the polyurethane layer not only improves the flexibility and tear resistance of the pipe, but also enhances the wear resistance of the pipe. The tensile strength and compressive strength of the pipe are further improved due to the arrangement of the reinforced braid layer, and stable use under severe conditions is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of polyethylene pipes, in particular to a polyethylene pipe that is frost-resistant, wear-resistant and corrosion-resistant. Background Art

[0002] Polyethylene pipe is a tubular product made of polyethylene (PE) material, used to transport water, gas or other fluids. Polyethylene is a widely used thermoplastic with good chemical stability, corrosion resistance and flexibility, so polyethylene pipe is very popular in the fields of construction, agricultural irrigation, municipal engineering and industrial applications. According to different densities and manufacturing processes, polyethylene pipe can be divided into low-density polyethylene (LDPE), high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) and other types.

[0003] However, existing polyethylene pipes still have some problems during use. Especially in cold areas, ordinary polyethylene pipes tend to become brittle in low temperature environments, resulting in insufficient antifreeze performance. In addition, due to the low surface hardness and poor wear resistance of polyethylene materials, they are prone to scratches and wear during use. At the same time, although polyethylene has a certain degree of corrosion resistance, in certain specific chemical environments, the pipe may still be corroded, affecting its service life and the purity of the transported fluid.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a polyethylene pipe that is frost-resistant, wear-resistant, and corrosion-resistant. Summary of the invention

[0005] The object of the present invention is to provide a polyethylene pipe which is frost-resistant, wear-resistant and corrosion-resistant, so as to solve the common problems mentioned in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a freeze-resistant, wear-resistant and corrosion-resistant polyethylene pipe, comprising a polyethylene pipe main body, the polyethylene pipe main body comprising a polyethylene base layer, the polyethylene base layer is wrapped with a barrier layer 1, the barrier layer 1 is wrapped with a first polyethylene layer, the first polyethylene layer is wrapped with a barrier layer 2, the barrier layer 2 is wrapped with a first polyurethane layer, the first polyurethane layer is wrapped with a barrier layer 3, the barrier layer 3 is wrapped with a second polyethylene layer, the second polyethylene layer is wrapped with a second polyurethane layer, the second polyurethane layer is wrapped with a reinforced braided layer, an antifreeze mixed layer is arranged outside the reinforced braided layer, and a corrosion-resistant mixed layer is arranged outside the antifreeze mixed layer.

[0007] As a preferred technical solution, the polyethylene base layer is made of high-density polyethylene material to ensure that the pipe has good mechanical properties and durability.

[0008] As a preferred technical solution, the barrier layer 1, the barrier layer 2 and the barrier layer 3 are all made of aluminum foil material to provide excellent barrier properties, prevent oxygen and water vapor from penetrating, and thus extend the service life of the pipe.

[0009] As a preferred technical solution, the first polyethylene layer and the second polyethylene layer are both made of medium-density polyethylene material to enhance the impact resistance and wear resistance of the pipe.

[0010] As a preferred technical solution, the first polyurethane layer and the second polyurethane layer are made of polyurethane elastomer material to provide good flexibility and tear resistance.

[0011] As a preferred technical solution, the reinforced braided layer is cross-woven by transverse reinforcement wires and longitudinal reinforcement wires and is made of high-strength glass fibers to further improve the tensile strength and compressive strength of the pipe.

[0012] As a preferred technical solution, the antifreeze mixed layer is made of a mixture of polyethylene and an antifreeze agent to ensure that the pipe can still maintain good flexibility and impact resistance in a low temperature environment.

[0013] As a preferred technical solution, the corrosion-resistant mixed layer is formed by mixing polyethylene and corrosion-resistant additives to improve the chemical corrosion resistance of the pipe and is suitable for various acid and alkali environments.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention is a polyethylene pipe that is frost-resistant, wear-resistant, and corrosion-resistant. The multi-layer structure design effectively improves the performance of the pipe in different environments. By wrapping the barrier layer outside the polyethylene base layer, the penetration of oxygen and water vapor can be effectively prevented, thereby avoiding the embrittlement problem of the pipe in a low-temperature environment. At the same time, the polyurethane layer not only improves the flexibility and tear resistance of the pipe, but also enhances its wear resistance. The setting of the reinforced braided layer further improves the tensile strength and compressive strength of the pipe, ensuring stable use under harsh conditions.

[0016] The use of the antifreeze mixed layer and the corrosion-resistant mixed layer enables the polyethylene pipe of the present invention to maintain good performance in extremely low temperature and chemically corrosive environments. The antifreeze mixed layer ensures that the pipe will not become brittle due to low temperature when used in cold areas, while the corrosion-resistant mixed layer ensures that the pipe will not be damaged when conveying corrosive fluids, thereby extending the service life of the pipe and ensuring the purity of the conveyed fluid.

[0017] The invention optimizes both the structure and the material selection, which not only improves the comprehensive performance of the pipe, but also broadens its application range. Compared with the existing polyethylene pipe, the pipe of the invention is more suitable for use in harsh environments and has higher reliability and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure diagram of a polyethylene pipe that is resistant to freezing, wear and corrosion;

[0019] Figure 2 This is a schematic diagram of the reinforced braided layer structure in a freeze-resistant, wear-resistant and corrosion-resistant polyethylene pipe.

[0020] In the accompanying drawings: 1, polyethylene pipe body; 11, polyethylene base layer; 12, barrier layer one; 13, first polyethylene layer; 14, barrier layer two; 15, first polyurethane layer; 16, barrier layer three; 17, second polyethylene layer; 18, second polyurethane layer; 19, reinforced braided layer; 191, transverse reinforcement wire; 192, longitudinal reinforcement wire; 20, antifreeze mixed layer; 21, corrosion-resistant mixed layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Example

[0024] See also Figure 1 and Figure 2 As shown, the present invention provides a technical solution for a frost-resistant, wear-resistant and corrosion-resistant polyethylene pipe: comprising a polyethylene pipe body 1, the polyethylene pipe body 1 comprises a polyethylene base layer 11, the polyethylene base layer 11 is wrapped with a barrier layer 12, the barrier layer 12 is wrapped with a first polyethylene layer 13, the first polyethylene layer 13 is wrapped with a barrier layer 2 14, the barrier layer 2 14 is wrapped with a first polyurethane layer 15, the first polyurethane layer 15 is wrapped with a barrier layer 3 16, the barrier layer 3 16 is wrapped with a second polyethylene layer 17, the second polyethylene layer 17 is wrapped with a second polyurethane layer 18, the second polyurethane layer 18 is wrapped with a reinforced braided layer 19, an antifreeze mixed layer 20 is arranged outside the reinforced braided layer 19, and a corrosion-resistant mixed layer 21 is arranged outside the antifreeze mixed layer 20.

[0025] In this embodiment, the polyethylene base layer 11 is made of high-density polyethylene material to ensure that the pipe has good mechanical properties and durability. The barrier layer 1 12, the barrier layer 2 14 and the barrier layer 3 16 are all made of aluminum foil material to provide excellent barrier properties and prevent oxygen and water vapor from penetrating, thereby extending the service life of the pipe. The first polyethylene layer 13 and the second polyethylene layer 17 are both made of medium-density polyethylene material to enhance the impact resistance and wear resistance of the pipe. The first polyurethane layer 15 and the second polyurethane layer 18 are made of polyurethane elastomer material to provide good flexibility and tear resistance.

[0026] The reinforcement braided layer 19 is cross-woven by transverse reinforcement wires 191 and longitudinal reinforcement wires 192, and is made of high-strength glass fiber to further improve the tensile strength and compressive strength of the pipe. The antifreeze mixed layer 20 is mixed with polyethylene and antifreeze agent to ensure that the pipe can still maintain good flexibility and impact resistance in low temperature environments. The corrosion-resistant mixed layer 21 is mixed with polyethylene and corrosion-resistant additives to improve the chemical corrosion resistance of the pipe and is suitable for various acid and alkali environments.

[0027] In this embodiment, through the above structural combination, the present invention performs well in practical applications. In cold regions, due to the presence of the antifreeze mixed layer, the pipe will not become brittle even under extreme low temperature conditions, and maintains good flexibility and impact resistance. When transporting corrosive fluids, the corrosion-resistant mixed layer ensures the structural stability of the pipe and avoids damage caused by chemical reactions, thereby ensuring the purity of the fluid and the safety of transportation.

[0028] In practical applications, the antifreeze, wear-resistant and corrosion-resistant polyethylene pipe of the present invention can be widely used in municipal engineering, industrial applications, oil and gas transportation, agricultural irrigation, and water supply and drainage systems in cold areas. Due to its excellent comprehensive performance, the pipe of the present invention can effectively reduce maintenance costs and reduce pipe damage caused by environmental factors, thereby improving the reliability and economic benefits of the overall project.

[0029] The working principle and use process of the present invention: After the present invention is installed, it works according to the above implementation method until all working steps are completed.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0031] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A frost-resistant, wear-resistant and corrosion-resistant polyethylene pipe, characterized in that: The invention comprises a polyethylene pipe body (1), wherein the polyethylene pipe body (1) comprises a polyethylene base layer (11), the polyethylene base layer (11) is wrapped with a barrier layer 1 (12), the barrier layer 1 (12) is wrapped with a first polyethylene layer (13), the first polyethylene layer (13) is wrapped with a barrier layer 2 (14), the barrier layer 2 (14) is wrapped with a first polyurethane layer (15), the first polyurethane layer (15) is wrapped with a barrier layer 3 (16), the barrier layer 3 (16) is wrapped with a second polyethylene layer (17), the second polyethylene layer (17) is wrapped with a second polyurethane layer (18), the second polyurethane layer (18) is wrapped with a reinforcement braided layer (19), an antifreeze mixed layer (20) is arranged outside the reinforcement braided layer (19), and a corrosion-resistant mixed layer (21) is arranged outside the antifreeze mixed layer (20).

2. The antifreeze, wear-resistant and corrosion-resistant polyethylene pipe according to claim 1, characterized in that: The polyethylene base layer (11) is made of high-density polyethylene material to ensure that the pipe has good mechanical properties and durability.

3. The antifreeze, wear-resistant and corrosion-resistant polyethylene pipe according to claim 1, characterized in that: The barrier layer 1 (12), the barrier layer 2 (14) and the barrier layer 3 (16) are all made of aluminum foil material to provide excellent barrier properties and prevent oxygen and water vapor from penetrating, thereby extending the service life of the pipe.

4. The antifreeze, wear-resistant and corrosion-resistant polyethylene pipe according to claim 1, characterized in that: The first polyethylene layer (13) and the second polyethylene layer (17) are both made of medium-density polyethylene material to enhance the impact resistance and wear resistance of the pipe.

5. The antifreeze, wear-resistant and corrosion-resistant polyethylene pipe according to claim 1, characterized in that: The first polyurethane layer (15) and the second polyurethane layer (18) are made of polyurethane elastomer material to provide good flexibility and tear resistance.

6. The antifreeze, wear-resistant and corrosion-resistant polyethylene pipe according to claim 1, characterized in that: The reinforced braided layer (19) is formed by cross-weaving transverse reinforcement wires (191) and longitudinal reinforcement wires (192), and is made of high-strength glass fibers to further improve the tensile strength and compressive strength of the pipe.

7. The antifreeze, wear-resistant and corrosion-resistant polyethylene pipe according to claim 1, characterized in that: The antifreeze mixed layer (20) is formed by mixing polyethylene and an antifreeze agent to ensure that the pipe can still maintain good flexibility and impact resistance in a low temperature environment.

8. The antifreeze, wear-resistant and corrosion-resistant polyethylene pipe according to claim 1, characterized in that: The corrosion-resistant mixed layer (21) is formed by mixing polyethylene and corrosion-resistant additives to improve the chemical corrosion resistance of the pipe and is suitable for various acid and alkali environments.

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