节约型城市中供水管网漏损检测与治理研究——以上海青浦区为例

Study on Leakage Detection and Treatment of Water Supply Pipeline Network in Economical City ——a Case Study of Qingpu District in Shanghai

为有效进行节约型城市构建,促进节能减排,降低城市水资源浪费,漏损检测和治理是城市供水管网管理的重要内容,分区装表计量(DMA)是当前备受重视和广泛运用的一种管网漏损治理方法。研究对DMA技术相关的概念、原理以及操作过程作了简要介绍,并以上海青浦区分区计量改造为例,对分区装表计量的操作步骤、技术要点作了详细阐述,对分区前后管网的水压问题、水质问题、消防问题作了对比分析。模型分析表明,一级、二级分区后,管网水力状态均能基本保持不变,能满足供水压力、应急消防用的需求。

In order to effectively build a conservation-oriented city, promote energy conservation and emission reduction, and reduce the waste of urban water resources, leakage detection and treatment is an important part of urban water supply network management. District Meter Area(DMA)is a widely used method for leakage control of water supply network. This paper briefly introduces the concept, principle and operation process of DMA technology. Taking the district meter area in Qingpu District of Shanghai as an example, the operation steps and technical essentials of the district meter area in the district are expounded in detail, and the water pressure, water quality and fire protection problems of the pipeline network before and after the district are compared and analyzed. The model analysis shows that the hydraulic state of the pipeline network can basically remain unchanged after the first and second level zoning, and can meet the demand of water supply pressure and emergency fire protection.