A high tensile strength polypropylene spiral wound tube

Abstract

This utility model discloses a high-tensile-strength polypropylene spiral wound pipe, comprising a pipe body, the pipe body including a polypropylene base layer, and a glass fiber strip disposed within the inner cavity of the polypropylene base layer. A corrosion-resistant layer is disposed on the inner side of the polypropylene base layer, and a wear-resistant layer is disposed on the outer side of the polypropylene base layer. The corrosion-resistant layer includes a chlorinated polyethylene coating and a chlorosulfonated polyethylene coating, and the wear-resistant layer includes a fluorocarbon rubber coating and a nitrile rubber coating. The chlorosulfonated polyethylene coating is applied to the inner side of the polypropylene base layer, and the chlorinated polyethylene coating is applied to the inner side of the chlorosulfonated polyethylene coating. The fluorocarbon rubber coating is applied to the outer side of the polypropylene base layer, and the nitrile rubber coating is applied to the outer side of the fluorocarbon rubber coating. This utility model uses polypropylene as the base layer, which can effectively improve the tensile strength of the pipe body itself, and the addition of the glass fiber strip further enhances the tensile strength of the pipe body.

Description

Technical Field

[0001] This utility model relates to the field of spiral wound tube technology, specifically a polypropylene spiral wound tube with high tensile strength. Background Technology

[0002] Pipelines are devices made up of pipes, pipe fittings, valves, etc., used to transport gases, liquids, or fluids containing solid particles. Spiral wound pipes are a type of pipeline, but existing spiral wound pipes lack tensile protection mechanisms, resulting in low overall tensile strength. Therefore, we propose a polypropylene spiral wound pipe with high tensile strength. Utility Model Content

[0003] The purpose of this invention is to provide a polypropylene spiral wound pipe with high tensile strength to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a polypropylene spiral wound pipe with high tensile strength, comprising a pipe body, wherein the pipe body comprises a polypropylene base layer, and a glass fiber strip is disposed in the inner cavity of the polypropylene base layer, a corrosion-resistant layer is disposed on the inner side of the polypropylene base layer, and a wear-resistant layer is disposed on the outer side of the polypropylene base layer.

[0005] Preferably, the corrosion-resistant layer includes a chlorinated polyethylene coating and a chlorosulfonated polyethylene coating, and the wear-resistant layer includes a fluorocarbon rubber coating and a nitrile rubber coating.

[0006] Preferably, the chlorosulfonated polyethylene coating is applied to the inner side of the polypropylene substrate, and the perchloroethylene coating is applied to the inner side of the chlorosulfonated polyethylene coating.

[0007] Preferably, the fluorocarbon rubber coating is applied to the outside of the polypropylene substrate, and the nitrile rubber coating is applied to the outside of the fluorocarbon rubber coating.

[0008] Preferably, the chlorinated polyethylene coating and the chlorosulfonated polyethylene coating have the same thickness, and the fluorocarbon rubber coating and the nitrile rubber coating have the same thickness.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This utility model uses polypropylene as the base layer, which can effectively improve the tensile strength of the pipe itself, and the setting of glass fiber tape further improves the tensile strength of the pipe itself.

[0011] 2. This utility model is provided with a corrosion-resistant layer, which includes a chlorinated polyethylene coating that provides a first layer of corrosion-resistant protection to the inner side of the pipe, and a chlorosulfonated polyethylene coating that provides a second layer of corrosion-resistant protection to the inner side of the pipe after the chlorinated polyethylene coating is damaged. It is also provided with a wear-resistant layer, which includes a nitrile rubber coating that provides a first layer of wear-resistant protection to the outer side of the pipe, and a fluorocarbon rubber coating that provides a second layer of wear-resistant protection to the outer side of the pipe after the nitrile rubber coating is damaged. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the corrosion-resistant layer structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the wear-resistant layer structure of this utility model.

[0015] In the figure: Pipe body 1, polypropylene base layer 11, glass fiber tape 12, corrosion resistant layer 13, chlorinated polyethylene coating 131, chlorosulfonated polyethylene coating 132, wear resistant layer 14, fluorocarbon rubber coating 141, nitrile rubber coating 142. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] The components of this application, including the tube body 1, polypropylene base layer 11, glass fiber tape 12, corrosion resistant layer 13, chlorinated polyethylene coating 131, chlorosulfonated polyethylene coating 132, wear resistant layer 14, fluorocarbon rubber coating 141, and nitrile rubber coating 142, are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0018] Example 1:

[0019] Please see Figure 1The following technical solution is provided, specifically disclosed: including a pipe body 1, the pipe body 1 including a polypropylene base layer 11, and a glass fiber strip 12 is provided in the inner cavity of the polypropylene base layer 11, a corrosion-resistant layer 13 is provided on the inner side of the polypropylene base layer 11, and a wear-resistant layer 14 is provided on the outer side of the polypropylene base layer 11. Using polypropylene as the base layer can effectively improve the tensile strength of the pipe body 1 itself, and the setting of the glass fiber strip 12 further improves the tensile strength of the pipe body 1 itself.

[0020] Example 2:

[0021] Please see Figure 2 and Figure 3 The following technical solution is provided, specifically disclosing that: the corrosion-resistant layer 13 includes a chlorinated polyethylene coating 131 and a chlorosulfonated polyethylene coating 132, and the wear-resistant layer 14 includes a fluorocarbon rubber coating 141 and a nitrile rubber coating 142. The chlorosulfonated polyethylene coating 132 is applied to the inner side of the polypropylene substrate 11, and the chlorinated polyethylene coating 131 is applied to the inner side of the chlorosulfonated polyethylene coating 132. The fluorocarbon rubber coating 141 is applied to the outer side of the polypropylene substrate 11, and the nitrile rubber coating 142 is applied to the outer side of the fluorocarbon rubber coating 141. The chlorinated polyethylene coating 131 and the chlorosulfonated polyethylene coating 132... The pipe body 1 has the same thickness, and the fluorocarbon rubber coating 141 and the nitrile rubber coating 142 have the same thickness. A corrosion-resistant layer 13 is provided, in which the chlorinated polyethylene coating 131 provides a first layer of corrosion-resistant protection for the inner side of the pipe body 1, and the chlorosulfonated polyethylene coating 132 provides a second layer of corrosion-resistant protection for the inner side of the pipe body 1 after the chlorinated polyethylene coating 131 is damaged. A wear-resistant layer 14 is provided, in which the nitrile rubber coating 142 provides a first layer of wear-resistant protection for the outer side of the pipe body 1, and the fluorocarbon rubber coating 141 provides a second layer of wear-resistant protection for the outer side of the pipe body 1 after the nitrile rubber coating 142 is damaged.

[0022] The working principle of this application is as follows: Polypropylene is used as the base layer, which can effectively improve the tensile strength of the pipe body 1 itself. The setting of glass fiber tape 12 further improves the tensile strength of the pipe body 1 itself. A corrosion-resistant layer 13 is set, which includes a chlorinated polyethylene coating 131 to provide a first layer of corrosion-resistant protection for the inner side of the pipe body 1. After the chlorinated polyethylene coating 131 is damaged, the chlorosulfonated polyethylene coating 132 can provide a second layer of corrosion-resistant protection for the inner side of the pipe body 1. A wear-resistant layer 14 is set, which includes a nitrile rubber coating 142 to provide a first layer of wear-resistant protection for the outer side of the pipe body 1. After the fluorocarbon rubber coating 142 is damaged, the nitrile rubber coating 141 can provide a second layer of wear-resistant protection for the outer side of the pipe body 1.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polypropylene spiral wound pipe with high tensile strength, comprising a pipe body (1), characterized in that: The tube body (1) includes a polypropylene base layer (11), and the inner cavity of the polypropylene base layer (11) is provided with a glass fiber strip (12). The inner side of the polypropylene base layer (11) is provided with a corrosion-resistant layer (13), and the outer side of the polypropylene base layer (11) is provided with a wear-resistant layer (14).

2. A polypropylene wound pipe having high tensile strength according to claim 1, characterized in that: The corrosion-resistant layer (13) includes a chlorinated polyethylene coating (131) and a chlorosulfonated polyethylene coating (132), and the wear-resistant layer (14) includes a fluorocarbon rubber coating (141) and a nitrile rubber coating (142).

3. A polypropylene pipe with high tensile strength according to claim 2, characterized in that: The chlorosulfonated polyethylene coating (132) is applied to the inside of the polypropylene substrate (11), and the perchloroethylene coating (131) is applied to the inside of the chlorosulfonated polyethylene coating (132).

4. A high tensile strength polypropylene spoolable pipe according to claim 2, characterized in that: The fluorocarbon rubber coating (141) is applied to the outside of the polypropylene substrate (11), and the nitrile rubber coating (142) is applied to the outside of the fluorocarbon rubber coating (141).

5. A high tensile strength polypropylene spoolable pipe according to claim 2, characterized in that: The chlorinated polyethylene coating (131) and the chlorosulfonated polyethylene coating (132) have the same thickness, and the fluorocarbon rubber coating (141) and the nitrile rubber coating (142) have the same thickness.

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