污水管网的优化设计

Optimization Design of Sewer Network

对于污水管网的优化设计,采用了图论中树形结构的理论来描述污水管网,提出用三叉树的形式来处理污水管网的网络结构,把管段当作树的节点作为研究对象;利用树的遍历中的后序法(即节点递归算法)进行水力计算,在优化计算时采取了枚举标准管径法来选取管径,可以提高运算速度;在优化程序中寻求造价最低、最优的同时考虑了管道费用和泵站费用。采用Delphi语言编制了污水管网优化程序,并且用天津某一小区的污水管网对此程序进行了实例考核。其优化设计思路可推广到雨水管道。

With respect to the optimization design of sewer network,tree structured theory was used to depict the sewer network,ternary tree form was proposed to treat the sewer network structure,and pipe section was regarded as node in this study.The post-order transversal (nodal recursive algorithm) was applied to make hydraulic calculation.In optimization of calculation,pipe diameter was selected by enumerating the standard pipe diameter,so as to raise the operational speed.Both the lowest and optimal construction cost and the cost of pipe and pump station shall be considered in optimizing program.Delphi language was used for programming the optimizer of sewer network.The program was checked by sewer network in a village of Tianjin.The optimizing philosophy can also be used in storm sewer design.