The application and development of PE pipes produced by Longchangjie Machinery Co., Ltd. in urban gas are mainly described from three aspects: application advantages, development history, and future trends.
1. Application advantages
· Strong corrosion resistance :PE pipes have excellent resistance to chemical substances in the soil and components in the gas, eliminating the need for additional anti-corrosion measures and thus extending the service life of the pipelines.
· Reliable connection: Hot-melt or electrofusion connection is adopted, with the interface integrated with the pipe material, providing excellent sealing performance and eliminating the risk of leakage.
· Good flexibility: It has a high elongation at break, can adapt to uneven settlement of the foundation and geological changes such as earthquakes, and has excellent seismic performance.
· Convenient construction: Light in weight, easy to move and install, and can adopt trenchless technology to reduce the impact on traffic and the environment and lower construction costs.
· Long service life: Under normal usage conditions, its service life can reach over 50 years, reducing the frequency of maintenance and replacement.
2. Development History
· Overseas development: Polyethylene was discovered in 1933, and the first polyethylene gas pipeline was laid in the United States in 1956. In the 1970s, PE pipes were rapidly popularized in the gas industry in Europe and North America, with a penetration rate of over 90% in countries such as the United Kingdom and Denmark.
· Domestic development: Research on polyethylene gas pipes began in the early 1980s, and they were first used in Shanghai in 1982. In 1995, the national standards and industry regulations for PE gas pipes and fittings were promulgated, and the output has been increasing year by year.
3. Future Trends
· Technological innovation: The research and development of new PE materials will expand their application scope, such as enhancing pressure resistance and developing pipes suitable for special environments.
· Environmental protection demand: The increasing demand for gas as a clean energy source will drive the application of PE pipes, whose environmental protection characteristics meet the requirements of sustainable development.
· Market demand: The growth of global energy demand and the acceleration of urbanization will promote the wide application of PE pipes in gas engineering
General application.
To sum up, the application of PE pipes in urban gas has significant advantages and broad prospects. With technological progress and the growth of market demand, its position will be further consolidated.
