摘要
基于供水管网水力计算理论,建立了以渗漏强度对管线压力的主要影响因素的渗漏状态下管道水力计算模型。应用该模型,可以得到正常与渗漏两种状态下的压力差值的数学表达式与其变化规律,据此可根据压力变化判据渗漏和进行定位。通过模拟计算,介绍了压力变化作为渗漏发生有效判据和初步定位的方法。
The change of water supply network pressure provides the information of possible leakage and may be utilized to detect, locate and estimate the situation according to the pressure data. A model for analyzing the leakage of pipeline based on calculating the effect of leakage intensity on pipeline pressure distribution is established. By using this model the mathematical expressions and laws of pressure variation for both without leakage and with occurrence of leakage are deduced. On this basis, the location of leakage can be determined according to the pressure variation.
出处
《水利学报》
EI
CSCD
北大核心
2008年第8期1001-1004,1011,共5页
Journal of Hydraulic Engineering
基金
国家自然科学基金(50578108)
天津市科技创新专项资金项目(06FZZDSH00900)
教育部博士点基金(20050056016)
关键词
供水管网
渗漏强度
水力分析
渗漏定位
water supply pipeline
leakage intensity
variation of pressure distribution
location of leakage
