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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 the high leakage rate of water supply network in a district in South G City, a pilot zone of PMA (Pressure Management Area) was set up in this district and a set of pressure control system was set up to carry out technical research on pressure regulation and leakage reduction. The operating plan of alternating pressure control was used to evaluate the effect of pressure control on the leakage control and effectively eliminate the interference of random factors such as season, weather, and holidays on the leakage assessment results. A long time statistical statistical analysis of data shows that, under the precondition of ensuring water supply safety, reasonably reducing pipeline pressure can effectively reduce leakage losses.