EPANET模型在再生水管网规划设计中的应用  

Application of EPANET model to planning and design of reclaimed water network

作　　者：魏炜[1] 贾海峰[2] 信昆仑[3] 

机构地区：[1]北京市水利规划设计研究院,北京103044 [2]清华大学环境科学与工程系,北京103084 [3]同济大学环境科学与工程学院,上海200092

出　　处：《水利水电技术》2008年第3期38-41,共4页Water Resources and Hydropower Engineering

摘　　要：在北京市再生水管网规划设计中,通过GIS建立规划管网的EPANET水力模型,消除了管网多水源供水、回用范围大、环状支状管网混合、结构复杂对水力计算的不利影响。并且针对水力计算结果———节点压力、管段流速和水力坡降(水头损失)进行分析,通过调整初始设计管径不合理的管段管径以及根据北京市地形分布将再生水管网划分为4个弱连接的供水分区,解决了再生水厂多数集中在地形较低的东部地区和大范围回用高程变化所带来的管网压力过高的问题,提高了管网设计的合理性,降低了管网的投资和运行成本。研究中应用的方法和过程具有通用性,可以用于有压给水、再生水管网系统的模拟。In Beijing Reclaimed Water Utilization Planning Project, the adverse impacts on the hydraulic calculation from the aspects such as multi-source water supply, larger reclaimed area and complicated stnlcture with mixing of looped branch-shaped pipeline networks etc. are eliminated through a GIS based EPANET hydraulic model for planning the pipeline network. Moreover, on the basis of the analysis on the results of hydraulic calculation i.e. node pressure, pipe velocity and hydraulic gradient （head-loss） , some of the initial diameters of the pipelines in the network are adjusted and the network is divided into four weak conjunction regions according to the topographical distribution of Beijing. It provides a better solution for the problem of over-high pressure in several regions of the network caused by the large reclaimed area with various elevations and most of the reclaimed water plants those are distributed in the eastern region of Beijing, with which the rationality of the planning is improved with the decrease of both the investment and the operation cost. The method can be used to analyze the other water supply distribution system and reclaimed water network.

关 键 词：EPANET 再生水管网 地理信息系统 水力计算模型 管网平差 北京市 

分 类 号：TV991[水利工程—水利水电工程]