Novel compression-resistant chemical-corrosion-resistant modified PVC (polyvinyl chloride) drainage pipe

By incorporating anti-pressure strips, anti-pressure rings, and anti-pressure layers within PVC drainage pipes, and combining them with glass fiber reinforced plastic and multi-layer coatings, the problems of pressure resistance and toughness of PVC drainage pipes are solved, thereby improving their corrosion resistance, waterproofing, and wear resistance.

CN223782261UActive Publication Date: 2026-01-09HENAN HECAI PIPELINE CO LTD
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Patent Information

Application Number
CN202520644481.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-01-09
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

Existing PVC drainage pipes lack stable pressure resistance and internal toughness.

Method used

Anti-pressure strips and anti-pressure rings are fixedly installed on the inner surface of the PVC pipe, and an anti-pressure layer is set on the inner wall. Combined with glass fiber reinforced plastic pipe, an external heat insulation mesh layer, a corrosion-resistant layer and a waterproof layer are set to improve the pressure resistance and corrosion resistance.

Benefits of technology

It achieves dual pressure resistance and toughness for PVC drainage pipes, while also improving corrosion resistance, water resistance and wear resistance.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) drainage pipes, and discloses a novel compression-resistant chemical-corrosion-resistant modified PVC drainage pipe which comprises a PVC pipe body, a plurality of compression-resistant strips are fixedly arranged on the inner surface of the PVC pipe body, a plurality of compression-resistant rings are fixedly wound on the inner surface of the PVC pipe body, a compression-resistant layer is fixedly arranged on the inner wall of the PVC pipe body, and the compression-resistant layer is fixedly arranged on the inner wall of the PVC pipe body. A plurality of compression-resistant rods are inserted into the front surface of the PVC pipe body, a heat insulation net layer is arranged on the inner surface of the PVC pipe body, a corrosion-resistant layer is arranged on the inner surface of the heat insulation net layer, a waterproof layer is arranged on the outer surface of the PVC pipe body, and a wear-resistant layer is arranged on the outer surface of the waterproof layer. The inner wall and the interior of the PVC drainage pipe can be subjected to double pressure resistance, and the toughness of the drainage pipe can be improved while the pressure resistance effect of the drainage pipe is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of PVC drainage pipe technology, specifically a novel pressure-resistant and chemically corrosion-resistant modified PVC drainage pipe. Background Technology

[0002] With the development of technology, PVC materials have been widely used in many fields, such as product packaging and corresponding unclogging and drainage pipes, especially unclogging and drainage pipes made of PVC materials.

[0003] For PVC drainage pipes, refer to patent number CN212616811U, a PVC sewage drainage pipe, by setting a polyphenylene sulfide layer, has high heat resistance, high melting temperature, corrosion resistance and high chemical resistance. By setting a polyether ether ketone coating, it has physical and chemical properties such as high temperature resistance, radiation resistance, stable insulation, hydrolysis resistance, pressure resistance and corrosion resistance. By setting a graphite coating, the high temperature resistance of the outer surface of the PVC pipe body is further improved.

[0004] However, the above-mentioned PVC drainage pipes do not have the function of stabilizing the pressure inside the pipe, nor do they have the function of high toughness pressure resistance inside the drainage pipe.

[0005] Therefore, we propose a new type of pressure-resistant and chemically corrosion-resistant modified PVC drainage pipe. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a novel pressure-resistant and chemically resistant modified PVC drainage pipe, which overcomes the deficiencies of existing technologies and solves the problems in the background technology where the above-mentioned PVC drainage pipes do not have a stable pressure-resistant function for the inside of the pipe, and also do not have a high-toughness pressure-resistant function for the inside of the drainage pipe.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a novel pressure-resistant and chemically corrosion-resistant modified PVC drainage pipe, comprising a PVC pipe body, a plurality of pressure-resistant strips fixedly disposed on the inner surface of the PVC pipe body, a plurality of pressure-resistant rings fixedly wound around the inner surface of the PVC pipe body, a pressure-resistant layer fixedly disposed on the inner wall of the PVC pipe body, and a plurality of pressure-resistant rods inserted into the front surface of the PVC pipe body.

[0010] Preferably, the inner surface of the PVC pipe body is provided with a heat insulation mesh layer, the inner surface of the heat insulation mesh layer is provided with a corrosion-resistant layer, the outer surface of the PVC pipe body is provided with a waterproof layer, and the outer surface of the waterproof layer is provided with a wear-resistant layer.

[0011] Preferably, a number of compression rings and a number of compression strips are fitted together in a corresponding manner, and a number of compression rods are fixedly installed on the inner wall of the compression layer.

[0012] Preferably, the pressure-resistant strips and pressure-resistant rings are made of polyvinyl chloride pipes, while the pressure-resistant bars and pressure-resistant layers are made of glass fiber reinforced plastic pipes.

[0013] Preferably, the corrosion-resistant layer is made of fusion-bonded epoxy powder, the waterproof layer is made of polyurethane waterproof coating, and the corrosion-resistant layer is made of polyethylene.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a novel pressure-resistant and chemically resistant modified PVC drainage pipe, which has the following beneficial effects:

[0016] 1. This new type of pressure-resistant and chemically corrosion-resistant modified PVC drainage pipe, through the cooperation between the PVC pipe body, pressure-resistant strip, pressure-resistant ring, pressure-resistant layer, and pressure-resistant rod, can provide double pressure resistance to the inner wall and interior of the PVC drainage pipe, which can improve the toughness of the drainage pipe while ensuring its pressure resistance.

[0017] 2. This new type of pressure-resistant and chemically corrosion-resistant modified PVC drainage pipe improves the corrosion resistance, waterproofing, and wear resistance of PVC drainage pipe through the combination of heat insulation mesh layer, corrosion-resistant layer, waterproof layer, and wear-resistant layer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the internal structure of the PVC pipe body and its related components according to this utility model.

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the PVC pipe body of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the PVC pipe body of this utility model.

[0022] In the diagram: 1. PVC pipe body; 2. Pressure-resistant strip; 3. Pressure-resistant ring; 4. Pressure-resistant layer; 5. Pressure-resistant rod; 6. Heat insulation mesh layer; 7. Corrosion-resistant layer; 8. Waterproof layer; 9. Wear-resistant layer. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Please see Figures 1-3 A novel pressure-resistant and chemically corrosion-resistant modified PVC drainage pipe includes a PVC pipe body 1, a plurality of pressure-resistant strips 2 fixedly disposed on the inner surface of the PVC pipe body 1, a plurality of pressure-resistant rings 3 fixedly wound around the inner surface of the PVC pipe body 1, a pressure-resistant layer 4 fixedly disposed on the inner wall of the PVC pipe body 1, and a plurality of pressure-resistant rods 5 inserted into the front surface of the PVC pipe body 1.

[0026] Specifically, through the cooperation between the PVC pipe body 1, the pressure-resistant strip 2, the pressure-resistant ring 3, the pressure-resistant layer 4, and the pressure-resistant rod 5, the inner wall and interior of the PVC drainage pipe can be subjected to double pressure resistance, which can improve the toughness of the drainage pipe while ensuring its pressure resistance.

[0027] In this implementation scheme: several pressure-resistant rings 3 and several pressure-resistant strips 2 are fitted together in a corresponding manner, and several pressure-resistant rods 5 are fixedly installed on the inner wall of the pressure-resistant layer 4.

[0028] Specifically, it enhances the dual compressive strength of PVC pipes.

[0029] In this implementation plan: the pressure-resistant strip 2 and the pressure-resistant ring 3 are made of polyvinyl chloride pipes, and the pressure-resistant rod 5 and the pressure-resistant layer 4 are both made of glass fiber reinforced plastic pipes.

[0030] Specifically, polyvinyl chloride (PVC) has compressive strength and corrosion resistance, while glass fiber reinforced plastics (GFRP) has excellent strength and rigidity, and high compressive strength.

[0031] Working principle: The PVC pipe body 1 improves its compressive strength through multiple interlaced pressure-resistant strips 2 and pressure-resistant rings 3 on its inner wall. The internal pressure-resistant rings 3 and pressure-resistant layer 4 provide double-layer pressure resistance, which effectively enhances the compressive strength of the PVC drainage pipe. While ensuring corrosion resistance and other properties, it also improves the performance of the PVC pipe.

[0032] Example 2

[0033] Please see Figure 1 , Figure 4 Based on Embodiment 1, this utility model provides a technical solution:

[0034] In this embodiment: the inner surface of the PVC pipe body 1 is provided with a heat insulation mesh layer 6, the inner surface of the heat insulation mesh layer 6 is provided with a corrosion resistant layer 7, the outer surface of the PVC pipe body 1 is provided with a waterproof layer 8, and the outer surface of the waterproof layer 8 is provided with a wear resistant layer 9.

[0035] Specifically, the combination of the heat insulation mesh layer 6, the corrosion-resistant layer 7, the waterproof layer 8, and the wear-resistant layer 9 improves the corrosion resistance, waterproofness, and wear resistance of the PVC drainage pipe.

[0036] In this implementation scheme: the corrosion-resistant layer 7 is made of fusion-bonded epoxy powder, the waterproof layer 8 is made of polyurethane waterproof coating, and the corrosion-resistant layer 7 is made of polyethylene.

[0037] Specifically, fusion-bonded epoxy powder has strong adhesion and excellent corrosion resistance, polyurethane waterproof coatings have high elasticity and improve waterproof performance, and polyethylene has excellent wear resistance, flexibility and impact resistance.

[0038] Working principle: The PVC drainage pipe has heat insulation function through the internal heat insulation mesh layer 6, service life through the corrosion resistant layer 7, waterproof performance through the waterproof layer 8, and excellent wear resistance through the wear-resistant layer 9 on the outer wall.

[0039] 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 novel pressure-resistant and chemically corrosion-resistant modified PVC drainage pipe, comprising a PVC pipe body (1), characterized in that: The inner surface of the PVC pipe body (1) is fixedly provided with several pressure-resistant strips (2), the inner surface of the PVC pipe body (1) is fixedly wrapped with several pressure-resistant rings (3), the inner wall of the PVC pipe body (1) is fixedly provided with a pressure-resistant layer (4), and the front surface of the PVC pipe body (1) is inserted with several pressure-resistant rods (5).

2. The novel pressure-resistant and chemically resistant modified PVC drainage pipe according to claim 1, characterized in that: The inner surface of the PVC pipe body (1) is provided with a heat insulation mesh layer (6), the inner surface of the heat insulation mesh layer (6) is provided with a corrosion resistant layer (7), the outer surface of the PVC pipe body (1) is provided with a waterproof layer (8), and the outer surface of the waterproof layer (8) is provided with a wear resistant layer (9).

3. The novel pressure-resistant and chemically resistant modified PVC drainage pipe according to claim 1, characterized in that: Several of the pressure-resistant rings (3) and several pressure-resistant strips (2) are fitted together in a corresponding manner, and several of the pressure-resistant rods (5) are fixedly installed on the inner wall of the pressure-resistant layer (4).

4. The novel pressure-resistant and chemically resistant modified PVC drainage pipe according to claim 1, characterized in that: The pressure-resistant strip (2) and pressure-resistant ring (3) are made of polyvinyl chloride pipe, and the pressure-resistant rod (5) and pressure-resistant layer (4) are made of glass fiber reinforced plastic pipe.

5. The novel pressure-resistant and chemically resistant modified PVC drainage pipe according to claim 2, characterized in that: The corrosion-resistant layer (7) is made of fusion-bonded epoxy powder, the waterproof layer (8) is made of polyurethane waterproof coating, and the corrosion-resistant layer (7) is made of polyethylene.

Citation Information

Patent Citations

  • PVC sewage drain pipe

    CN212616811U