tailieunhanh - Handbook of Water and Wastewater Treatment Plant Operations - Chapter 8

Nước và nước thải Vận chuyển và ống dẫn được sử dụng chủ yếu để phân phối nước trong thành phố. Tiếng Anh ưa thích để đặt chạy dài của đường ống từ nguồn nước đến đích cuối cùng. Người Ý, trên tay khác, nơi mà cổ aqueduct vòm vẫn có thể nhìn thấy, dường như có nhiều hơn một xu hướng thực hiện theo các truyền thống La Mã ống dẫn kênh đường dài. Ít nhất một số cống dẫn nước kênh có vẻ như đã ăn hệ thống phân phối địa phương của chì hoặc đất nung Với. | Water and Wastewater Conveyance The design considerations for the piping system are the function of the specifics of the system. However all piping systems have a few common issues the pipe strength must be able to resist internal pressure handling and earth and traffic loads the pipe characteristics must enable the pipe to withstand corrosion and abrasion and expansion and contraction of the pipeline if the line is exposed to atmospheric conditions engineers must select the appropriate pipe support bedding and backfill conditions the design must account for the potential for pipe failure at the connection point to the basins due to subsidence of a massive structure and the composition of the pipe must not give rise to any adverse effects on the health of DELIVERING THE LIFEBLOOD OF CIVILIZATION Conveyance or piping systems resemble veins arteries and capillaries. According to Nayyar they carry the lifeblood of modern civilization. In a modern city they transport water from the sources of water supply to the points of distribution convey waste from residential and commercial buildings and other civic facilities to the treatment facility or the point of discharge. 2 Water and wastewater operators must be familiar with piping piping systems and the many components that make piping systems function. Operators are directly concerned with various forms of piping tubing hose and the fittings that connect these components to create workable systems. This chapter covers important practical information about the piping systems that are a vital part of plant operation essential to the success of the total activity. To prevent major system trouble skilled operators are called upon to perform the important function of preventive maintenance to avoid major breakdowns and must be able to make needed repairs when breakdowns do occur. A comprehensive knowledge of piping systems and accoutrements is essential to maintaining plant operations. CONVEYANCE SYSTEMS .