Study On Application And Construction Quality Of Plastic Pipeline Used In Water Supply And Drainage Engineering

With the continuous progress of science and technology, people’s environmental awareness and increasingly urgent demand for environmental protection pipe. Studies have shown that the use of cold galvanizing steel pipe water supply, the general life of less than five years of rusting on, and deterioration of water quality, the iron smell serious. So the new plastic pipe has became the people’s first choice. Compared with the traditional metal pipe, the new plastic pipe has the advantages of stable property, light weight, convenient construction, long service life, and green environmental protection. Overall, the new plastic in place of the traditional pipe has an irresistible trend of the big.Water supply and drainage pipe network is like a city’s blood vessels, a steady flow of water supply to urban residents living in normal, which makes the supply and drainage protect in the urban construction is in a crucial position. So in the city water supply and drainage protect, choose the appropriate water supply and drainage pipe for the whole project is of great significance. Scientific and reasonable choice of pipe, not only to improve the operational capacity of water supply and drainage works, but also to reduce unnecessary maintenance investment, saving construction costs.This paper summarizes the development and current situation of drainage pipeline in domestic and foreign, by comparing the domestic and foreign new type plastic pipe demand and the development present situation, we can know that in our country whether the new plastic pipe demand or the popularization rate are far from abroad, plastic pipe is in the stage of development in China, there are still great development prospects and market. At present, we commonly used several new types of plastic pipe including PE pipe, UPVC tube, PPR pipe, PB pipe, pipe RPMP etc., the pipe is currently the general application in China, and the drainage engineering construction demand is increasing year by year. The paper summarizes systematically characteristics, types, production technology, pipe selection of these types of pipe and highlights the nature of the stability, green environmental protection, long life and other excellent characteristics of the new plastic pipe by comparing with traditional pipe.New plastic pipe as a new pipeline, its material and pipeline characteristics decide it is different with the traditional pipe during the construction.It can be seen that the construction procedure of the new plastic pipe is less than that of the traditional pipeline, and the installation is simple and convenient. However, the pipeline connection is more strict, and the new requirements are put forward in the connection of the pipeline and the inspection well and the pressure test of the pipeline.This paper summarizes common quality problems that are easy to appear in the construction of the a new type of plastic pipe. And puts forward the corresponding measures and how to carry out maintenance of the pipeline. In short, the new plastic pipe construction should not be affected by the traditional pipeline construction experience.Finally, this paper also pointed out that the generally use of new type of plastic pipe bring problems to the pipe market. The demand of larger plastic pipes and the pipe material can bring great profits for manufacturers and merchants, but special raw material of plastic pipe is relatively small, so some businessman is dishonest due to some factors such as large benefits and production and marketing is wrong, which cause the plastic pipe material market pipe quality varies greatly.In this regard, we should increase not only market supervision, government regulation, but also the strict self-discipline, professional ethics of merchant.