供水管网压力异常工况下的趋势面分析模型及应用

Study on Trend-surface Analysis Model under Abnormal Pressure Condition in Water-supply Pipe Network and Its Application

分析了管网压力异常工况下的节点水压变化,建立了管网趋势面分析模型,通过比对管网正常工况和异常工况下的趋势图和残差图,判断管网发生漏损现象程度及大体范围,并对某市管网进行了实例分析。

The changes of the nodes pressure under abnormal conditions are analyzed and the trend-surface analysis model for water-supply pipe network is established in this paper.Through contrasting trend chart and the diversity chart under the conditions of normal and abnormal pipe network pressure,the degree and the general scope of the pipeline leakage can be determined.Meanwhile,the water-supply network of certain city is analyzed as an example.