基于压力相关的城市供水管网漏失预警研究  

Study on Leakage Warning of Urban Water Supply Network Based on Pressure Correlation

作　　者：涂杰 刘文睿 丁祥 吴芬芬 TU Jie;LIU Wen-rui;DING Xiang;WU Fen-fen(WISDRI Engineering&Research Incorporation Limited Company,Wuhan 430223,China;North China Municipal Engineering Design&Research Institute Limited Company,Tianjin 300074,China;Department of Infrastructure Management,Chang’an University,Xi’an 710064,China;CSCEC AECOM Consultants Limited Company,Lanzhou 730099,China)

机构地区：[1]中冶南方工程技术有限公司,湖北武汉430223 [2]中国市政工程华北设计研究总院有限公司,天津300074 [3]长安大学基建处,陕西西安710064 [4]中国市政工程西北设计研究院有限公司,甘肃兰州730099

出　　处：《水电能源科学》2024年第1期139-143,共5页Water Resources and Power

基　　金：基于智能化平台的供水管网安全事故应急技术研究(2014ZX07406-004)。

摘　　要：近年来极端天气频发,加之我国大部分城市长期存在严重的缺水问题,因此为节约有限的淡水资源,及时发现城市供水管网漏失事故十分必要。首先通过某市供水管网历史压力数据分析了正常运行工况下的压力数据特征;然后探讨了当供水管网发生漏失事故时影响漏失点压力变化的因素,并利用FLUENT流体模拟软件进行仿真模拟验证;最后在各种工况压力变化规律的基础上建立了供水管网压力波动阈,当监测压力值超出压力波动阈,综合考虑压力监测点单一时刻的压力波动程度及一个时间周期内的压力变化趋势等多方面的因素,来预警供水管网是否发生漏失事故,并以某市供水管网为例,验证了所提漏失预警方法有效、可行。In recent years,the frequent occurrence of extreme weather,coupled with the serious water shortage problem in most cities of China for a long time,it is necessary to find the leakage accident of urban water supply network in time in order to save limited freshwater resources.Firstly,this paper discussed the characteristics of pressure data under normal operating conditions through the historical pressure data of a city's water supply network.Secondly,the factors that affect the pressure change at the leakage point when the leakage accident occurs in the water supply network were discussed,and the fluid simulation software FLUENT was used for simulation verification.Finally,the pressure fluctuation threshold of the water supply network was established on the basis of the pressure variation rules of various working conditions.When the monitored pressure value exceeded the pressure fluctuation threshold,the leakage accidents of water supply network had been early-warning by comprehensively considering the pressure fluctuation degree of the pressure monitoring point at a single time and the pressure change trend within a time period.Taking a city's water supply network as an example,the effectiveness and feasibility of the leakage early warning method was verified.

关 键 词：仿真模拟 供水管网 压力波动 漏失预警 

分 类 号：TV672.2[水利工程—水利水电工程]