基于分区计量和集中多种措施的降低管网供水产销差率研究

Research of reducing the none revenue water on the base of district metered areas and various methods

供水产销差率是评价供水企业运营的关键指标,降低供水产销差率是各水司持续关注的问题。针对某市供水高产销差率的现状,通过分区计量建立试验区,集中采用在进水口处安装减压阀、主动检漏及维修、更换水表、规范消火栓取水、提高抄表准确性和普查二次加压泵站水池溢流等措施来降低供水产销差率,评估降低供水产销差率的实际效果和经济效益,并提出相关建议以进一步降低供水产销差率。

None revenue water （NRW） is the key performance index for water supply companies. Reducing NRW is a continuous hot topic for every water supply company. Based on the current situation of high NRW in a city, using various NRW reducing methods, which included setting up experiment districts by zone metering, installing pressure reduce valves at the water inlets and water outlets, detecting leakage, maintaining and replacing water meters, regulating the water supply for hydrant, improving the metering accuracy, and investigating the overflowing facilities for the second pressure pump station, this paper evaluated the economic and operation effects of the various methods and put forward the related suggestions to further reduce the NRW.