Wear-resistant anti-aging drainage pipeline
By applying an anti-corrosion coating to the outer wall of the drainage pipe and spraying an inner wall coating, and welding reinforcement structures at both ends of the steel pipe, the problem of poor wear resistance and aging resistance of the drainage pipe is solved, resulting in a longer service life and higher pressure resistance, and preventing water pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-03
AI Technical Summary
Existing drainage pipes have poor wear resistance and aging resistance, short service life, and are prone to deformation and corrosion, leading to the risk of water pollution.
An anti-corrosion coating consisting of a fusion-bonded epoxy powder coating, an adhesive layer, and a polyethylene layer is applied to the outer wall of the steel pipe body. An inner wall epoxy powder coating is sprayed on the inner wall. Corrugated reinforcing strips are welded to the inner walls at both ends of the steel pipe, and spiral reinforcing ribs are welded to the outer surface.
It enhances the wear and corrosion resistance of steel pipes, extends their service life, reduces the risk of deformation and scaling, and ensures the smoothness and hygiene of the pipe's inner wall.
Smart Images
Figure CN224079818U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage pipe technology, and in particular to a wear-resistant and anti-aging drainage pipe. Background Technology
[0002] Drainage projects in municipal construction are directly related to urban drainage safety and are also a guarantee for urban development and the stability of residents' lives. Pipelines are the most important part of drainage projects.
[0003] However, most drainage pipes have poor wear resistance and aging resistance, short service life, and are prone to local deformation. Therefore, we propose a wear-resistant and aging-resistant drainage pipe. Summary of the Invention
[0004] To overcome the shortcomings of existing technologies, this utility model provides a wear-resistant and anti-aging drainage pipe. By fusion-bonding an epoxy powder coating, an adhesive layer, and a polyethylene layer, the outer wall of the steel pipe body is made more wear-resistant and corrosion-resistant, and has a longer anti-aging effect, effectively extending the service life of the steel pipe body. By spraying an inner epoxy powder coating on the inner wall of the steel pipe body, the anti-corrosion effect of the inner wall of the steel pipe body is enhanced, and the inner wall of the steel pipe body is smooth and not easy to scale, making it safe and hygienic, and effectively preventing water pollution caused by rust on the inner wall of the pipe.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a wear-resistant and anti-aging drainage pipe, comprising a steel pipe body, wherein spiral reinforcing ribs are welded to the outer surface of the steel pipe body, corrugated reinforcing strips are welded to the inner walls at both ends of the steel pipe body, and an anti-corrosion coating is sprayed on the outer surface of the steel pipe body, wherein the anti-corrosion coating is composed of a fusion-bonded epoxy powder coating, an adhesive layer, and a polyethylene layer, wherein the fusion-bonded epoxy powder coating is uniformly sprayed on the outer surface of the steel pipe body, an adhesive layer is sprayed on the outer surface of the fusion-bonded epoxy powder coating, a polyethylene layer is sprayed on the outer surface of the adhesive layer, and an inner wall epoxy powder coating is uniformly sprayed on the inner surface of the steel pipe body.
[0006] As a preferred technical solution of this utility model, the bottom layer of the anti-corrosion coating is a fused epoxy powder coating that is uniformly attached to the outer surface of the steel pipe body, the middle layer of the anti-corrosion coating is a grafted modified polyethylene adhesive layer, and the outer layer of the anti-corrosion coating is a high-density polyethylene anti-corrosion coating.
[0007] As a preferred technical solution of this utility model, the inner wall epoxy powder coating of the steel pipe body is applied by electrostatic powder spraying process.
[0008] As a preferred technical solution of this utility model, the polyethylene layer and the inner wall epoxy powder coating are sprayed with a thickness of 0.3 mm.
[0009] Compared with the prior art, the beneficial effects that this utility model can achieve are: 1. By setting up the epoxy powder coating, adhesive layer and polyethylene layer by fusion welding, the wear resistance and corrosion resistance of the outer wall of the steel pipe body are stronger, the anti-aging effect is longer, and the service life of the steel pipe body is effectively extended. By spraying the inner wall epoxy powder coating on the inner wall of the steel pipe body, the anti-corrosion effect of the inner wall of the steel pipe body is enhanced, and the inner wall of the steel pipe body is smooth and not easy to scale, which is safe and hygienic and effectively prevents the water source from being polluted by the rust of the inner wall of the pipe.
[0010] 2. By welding corrugated reinforcing strips to the inner walls at both ends of the steel pipe body, the compressive support force at the connection end of the steel pipe body is increased, reducing the possibility of deformation and cracking at the connection point of the steel pipe body. By welding spiral reinforcing ribs to the outer surface of the steel pipe body, the overall compressive strength of the steel pipe body is enhanced, effectively reducing the deformation of the pipe wall caused by excessive local pressure on the steel pipe body. Attached Figure Description
[0011] Figure 1 This is a partial cross-sectional view of the present invention.
[0012] Figure 2 This is a frontal cross-sectional view of the present invention.
[0013] Figure 3 This is a cross-sectional view of the steel pipe structure of this utility model.
[0014] The components include: 1. Steel pipe body; 2. Fusion-welded epoxy powder coating; 3. Adhesive layer; 4. Polyethylene layer; 5. Inner wall epoxy powder coating; 6. Corrugated reinforcing strip; 7. Spiral reinforcing rib. Detailed Implementation
[0015] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation are all within the protection scope of this utility model without creative effort.
[0016] For an example, please refer to... Figure 1 , Figure 2 , Figure 3As shown, this utility model provides a wear-resistant and anti-aging drainage pipe, including a steel pipe body 1. Spiral reinforcing ribs 7 are welded to the outer surface of the steel pipe body 1. Corrugated reinforcing strips 6 are welded to the inner walls at both ends of the steel pipe body 1. An anti-corrosion coating is sprayed onto the outer surface of the steel pipe body 1, consisting of a fusion-bonded epoxy powder coating 2, an adhesive layer 3, and a polyethylene layer 4. The fusion-bonded epoxy powder coating 2 is uniformly sprayed onto the outer surface of the steel pipe body 1. An adhesive layer 3 is sprayed onto the outer surface of the fusion-bonded epoxy powder coating 2. A polyethylene layer 4 is sprayed onto the outer surface of the adhesive layer 3. An inner wall epoxy powder coating 5 is uniformly sprayed onto the inner surface of the steel pipe body 1. By welding corrugated reinforcing strips 6 to the inner walls at both ends of the steel pipe body 1, the wear resistance of the steel pipe body 1 is increased. The joint's compressive strength is enhanced to reduce deformation and cracking at the connection point of the steel pipe body 1. By welding spiral reinforcing ribs 7 to the outer surface of the steel pipe body 1, the overall compressive strength of the steel pipe body 1 is enhanced, effectively reducing the deformation of the pipe wall caused by excessive local pressure. The addition of epoxy powder coating 2, adhesive layer 3, and polyethylene layer 4 through fusion welding makes the outer wall of the steel pipe body 1 more wear-resistant and corrosion-resistant, and longer-lasting in anti-aging, effectively extending the service life of the steel pipe body 1. By spraying an inner epoxy powder coating 5 onto the inner wall of the steel pipe body 1, the anti-corrosion effect of the inner wall of the steel pipe body 1 is enhanced, and the inner wall of the steel pipe body 1 is smooth and not prone to scaling, ensuring safety and hygiene, and effectively preventing water pollution caused by rust on the inner wall of the pipe.
[0017] like Figure 2 As shown, the bottom layer of the anti-corrosion coating, the epoxy powder coating 2, is uniformly adhered to the outer surface of the steel pipe body 1. The middle layer of the anti-corrosion coating, the adhesive layer 3, is a grafted modified polyethylene adhesive layer. The outer layer of the anti-corrosion coating, the polyethylene layer 4, is a high-density polyethylene anti-corrosion coating.
[0018] like Figure 1 As shown, the inner wall epoxy powder coating 5 of the steel pipe body 1 is sprayed with an electrostatic powder spraying process; by using an electrostatic powder spraying process for the inner wall epoxy powder coating 5, the inner wall epoxy powder coating 5 is sprayed more evenly, and the inner wall of the steel pipe body 1 is smoother.
[0019] like Figure 1 As shown, the polyethylene layer 4 and the inner wall epoxy powder coating 5 have a spray thickness of 0.3 mm.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wear resistant and ageing resistant drainage pipe comprising a steel pipe body (1), characterized in that: The steel pipe body (1) is welded with spiral reinforcing ribs (7) on the outer surface, the steel pipe body (1) is welded with corrugated reinforcing strips (6) on the inner wall of both ends, the outer surface of the steel pipe body (1) is sprayed with a corrosion-resistant coating, the corrosion-resistant coating is composed of a fusion epoxy powder coating (2), an adhesive layer (3) and a polyethylene layer (4), the outer surface of the steel pipe body (1) is uniformly sprayed with the fusion epoxy powder coating (2), the outer surface of the fusion epoxy powder coating (2) is sprayed with the adhesive layer (3), the outer surface of the adhesive layer (3) is sprayed with the polyethylene layer (4), and the inner surface of the steel pipe body (1) is uniformly sprayed with an inner wall epoxy powder coating (5).
2. A wear resistant, age resistant drainage pipe according to claim 1, characterized in that: The bottom layer of the corrosion-resistant coating, the fusion epoxy powder coating (2), is uniformly attached to the outer surface of the steel pipe body (1), the middle layer of the corrosion-resistant coating, the adhesive layer (3), is a grafted modified polyethylene adhesive layer, and the outer layer of the corrosion-resistant coating, the polyethylene layer (4), is a high-density polyethylene corrosion-resistant coating.
3. A wear resistant, age resistant drainage pipe according to claim 1, characterized in that: The inner wall epoxy powder coating (5) sprayed on the inner wall of the steel pipe body (1) adopts an electrostatic powder spraying process.
4. A wear resistant, age resistant drainage pipe according to claim 1, characterized in that: The spraying thickness of the polyethylene layer (4) and the inner wall epoxy powder coating (5) is 0.3 mm.