With the acceleration of urbanization and the continuous improvement of infrastructure construction, the quality and safety of water supply pipelines, as an important part of the urban water supply system, have attracted more and more attention. The anti-corrosion work of water supply pipelines is one of the key links to ensure the long-term stable operation of pipelines, and anti-corrosion spiral welded pipes are one of the commonly used materials for anti-corrosion of water supply pipelines. This article will introduce the characteristics, advantages, production process and application fields of three-layer polyethylene anticorrosive spiral welded pipe for water supply pipelines.
1. The characteristics of three-layer polyethylene anti-corrosion spiral welded pipe.
Three-layer polyethylene anti-corrosion spiral welded pipe is a kind of pipe made of steel pipe based on steel pipe coated with anti-corrosion material on the inner and outer surfaces. Its outer layer is a polyethylene anti-corrosion layer, which has high wear resistance, impact resistance and corrosion resistance; The middle layer is the adhesive, which plays the role of connecting the inner and outer layers; The inner layer is a polyethylene anti-corrosion layer to protect the inner wall of the pipeline. The design of this three-layer structure makes the pipeline have excellent anti-corrosion, mechanical and environmental performance.
Advantages of two- and three-layer polyethylene anti-corrosion spiral welded pipes.
Compared with traditional anti-corrosion materials, three-layer polyethylene anti-corrosion spiral welded pipe has the following advantages:
1.Excellent anti-corrosion performance: The three-layer polyethylene anti-corrosion spiral welded pipe has high corrosion resistance, which can effectively prevent the erosion of various chemical media and ensure the long-term stable operation of the pipeline.
2.Excellent mechanical properties: the pipeline has high strength and toughness, can withstand large pressure and bending deformation, and is not easy to crack and fracture.
3.Good environmental performance: polyethylene material is non-toxic and tasteless, will not cause pollution to the environment, and can be reused at the same time, in line with the requirements of green environmental protection.
4.Long service life: Due to the excellent anti-corrosion performance and mechanical properties of the three-layer polyethylene anti-corrosion spiral welded pipe, its service life is long, generally more than 50 years.
5.Easy installation: The pipeline connection method is simple, and it can be welded, flanged and other methods, and the installation is simple and fast.
3. Production process of three-layer polyethylene anticorrosive spiral welded pipe.
The production process of three-layer polyethylene anticorrosive spiral welded pipe mainly includes the following steps:
1.Steel pipe pretreatment: The steel pipe is cleaned, rust removed, dried and other treatments to ensure the adhesion between the coating and the steel pipe surface.
2.Inner coating: A layer of polyethylene anti-corrosion layer is coated on the inner wall of the steel pipe to protect the inner wall of the pipeline.
3.Adhesive coating: After the inner layer is coated, a layer of adhesive is applied to connect the inner and outer layers.
4.Outer coating: After the adhesive is applied, a polyethylene anti-corrosion layer is applied as the outer protective layer of the pipe.
5.Cooling and inspection: After the coating is completed, the pipe is cooled and inspected to ensure that the quality and thickness of the coating meet the requirements.
Fourth, the application field of three-layer polyethylene anti-corrosion spiral welded pipe.
Due to the excellent anti-corrosion performance, mechanical properties and environmental protection properties of the three-layer polyethylene anti-corrosion spiral welded pipe, its application field is very wide. It is mainly used in the following fields:
1.Urban water supply system: As one of the main materials of urban water supply pipelines, it is used to transport tap water, industrial water, etc.
2.Sewage treatment system: As one of the main materials of sewage pipelines, it is used to transport sewage and wastewater, etc.
3.Oil and gas pipelines: used to transport oil, natural gas and other gases and liquids.
4.Chemical industry pipelines: used to transport various chemical media, such as acids, alkalis, salts, etc.
5.Other fields: such as pipeline systems in the fields of agricultural irrigation, electricity, communications, etc.
Start planning my 2024 To sum up, as a pipeline material with excellent corrosion resistance, mechanical properties and environmental performance, three-layer polyethylene anti-corrosion spiral welded pipe has been widely used in urban water supply systems, sewage treatment systems, oil and gas pipelines, chemical industry pipelines and other fields. With the continuous acceleration of urbanization and the continuous improvement of infrastructure construction, its market demand will continue to grow, with broad market prospects and development space.