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我们工作中常见的输水管线分为两种:泵站加压输水管线和重力流输水管线,随着城镇化的加速以及对用水量需求的增加,各地的供水工程规模及数量也在不断增多,由此带来的安全问题也愈加突出。通过分析,可以总结出输水管线以下特点:(1)低扬程大流量泵,多台并联、多级加压。(2)水体惯性时间长、输水量大、受水范围广。(3)管线漫长、地形复杂、介质多样。(4)管线装置大型化,水力元件众多。(5)坡顶负压段空化、坡地管道水柱拉
There are two types of water transfer lines commonly used in our work: pumping station pressurized water pipelines and gravity flow water pipelines. As urbanization accelerates and the demand for water increases, the scale and quantity of water supply projects in various places Increasing, the resulting security issues are also more prominent. Through the analysis, we can summarize the following features of the water pipeline: (1) low head high flow pump, multiple parallel, multi-stage pressure. (2) The water has a long time inertia, large volume of water, wide range of water. (3) long pipeline, complex terrain, medium diversity. (4) large-scale pipeline devices, hydraulic components many. (5) Negative pressure section of the top of the cave cavitation, slope pipe pulling water