小区给水管网调压减漏技术研究

Research on Pressure Control for Leakage Reduction of Water Supply System in Residential Area

针对南方G市某小区给水管网漏损率居高不下,在该小区建立了PMA(压力管理区)试验区,并搭建了一整套压力控制系统,开展了调压减漏的技术研究。采用了压力交替调控的运行方案评估压力控制对漏损控制的效果,有效排除了季节、天气、节假日等随机因素对漏损评估结果的干扰。长时间的数据统计概率分析表明,在保障供水安全的前提下,合理降低管网运行压力能够有效地减少漏损。

In view of high leakage rate ot the water supply system southern city G, the technical research on pressure control for leakage reduction was undertaken by building a pressure management area （PMA） and developing a set of pressure control system. An alternative pressure control scheme was used to evaluate the effect of pressure control on leakage control. The interference of season, weather, holidays and other random factors on the leakage evaluation results was effectively eliminated. The statistical probability analysis of long-term data showed that reasonable reduction of the operation pressure of water supply system could effectively reduce leakage under the premise of ensuring the water supply security.