供水管线渗漏水力分析
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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.
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.
引文
[1]田一梅,汪泳,李江涛.城市供水管网局部故障工况下运行状态模拟仿真的研究[J].水利学报,2003,(4):123-128.
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[3]陈玲俐,李杰.供水管网渗漏分析研究[J].地震工程与工程振动,2003,2(1):115-121.
[4]严煦世,赵洪宾编著.给水管网理论和计算[M].北京:中国建筑工业出版社,1986.
[5]Germanopoulos G,et al.A technical nite on the inclusion of pressure dependent demand and leakage terms in watersupplynet work model[J].CivilEgn.Sys,1985,2(9):171-179.
[6]Jowitt P W,Chengchao Xu.Predicting pipe failure in water distribution network[J].Journal of Water Resources Planningand Management,1993,119(1):18-31.
[7]贺益英,赵懿珺,孙淑卿,等.输水管线中弯管局部阻力的相邻影响[J].水利学报,2004,(2):17-20.
[2]马立辉,崔建国.供水管网检漏技术与漏损控制模型研究[J].科技情报开发与经济,2003,3(12):129-130.
[3]陈玲俐,李杰.供水管网渗漏分析研究[J].地震工程与工程振动,2003,2(1):115-121.
[4]严煦世,赵洪宾编著.给水管网理论和计算[M].北京:中国建筑工业出版社,1986.
[5]Germanopoulos G,et al.A technical nite on the inclusion of pressure dependent demand and leakage terms in watersupplynet work model[J].CivilEgn.Sys,1985,2(9):171-179.
[6]Jowitt P W,Chengchao Xu.Predicting pipe failure in water distribution network[J].Journal of Water Resources Planningand Management,1993,119(1):18-31.
[7]贺益英,赵懿珺,孙淑卿,等.输水管线中弯管局部阻力的相邻影响[J].水利学报,2004,(2):17-20.
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