The Research Of Hydraulic Calculation Of Water Pipe Networks Based On Reliability

A secure and reliable water supply system is the basic condition of the development of country and happy life of people. Secondary pumping station aqueduct and pipe net (water pipe net system for short) are important parts of water supply system. And their reliabilities have significant influence on social and economic benefits of the water supply system as a whole. Mechanical failure of water pipe net system including the failure of pipe water pumping or valve and hydraulic performance failure of water pipe net system including deficient hydraulic pressure or deficient water capacity are two basic failures of water pipe net system. Basing on the discuss above, the author analyses the reliability of water pipe net system and attempt to combine the reliability and economy with optimal decision method.Firstly, foundation of water pipe net system reliability analysis is established. Then it analyses the reliability of secondary pumping station aqueduct and pipe net. At last, ulterior analysis of the water system is made out.The qualitative reliability analysis of secondary pumping station aqueduct is in this paper. And the reliability analysis model and guideline of secondary pumping station aqueduct are funded. On the foundation of simulation of pipe net working status with Monte-Carlo method and building up reasonable guideline to evaluate the system reliability by combining the node's hydraulic pressure and water quantity, the qualitative and quantificational reliability analysis of pipe net are made out.In the end, taking a water pipe net system of a city in anhui province as example,the conclusions above are applied to get a good result . It's hope that the whole work I did can help developing the work of water supply system reliability analysis.