一种适用于独立计量分区的小泄漏检测方法  

A Method for Small Leakage Detection in District Metering Area

作　　者：黄海东 张志雄 宋丰轩 林振良 HUANG Hai-dong;ZHANG Zhi-xiong;SONG Feng-xuan;LIN Zhen-liang(College of Civil Engineering and Architecture,Beibu Gulf University,Qinzhou 535011,China)

机构地区：[1]北部湾大学建筑工程学院,广西钦州535011

出　　处：《中国给水排水》2022年第15期37-42,共6页China Water & Wastewater

基　　金：北部湾大学高层次人才科研启动基金资助项目(2019KYQD22)。

摘　　要：指数加权移动平均算法具有累积效应,能够将微小的波动进行放大。利用这一特点,提出了一种适用于独立计量分区的小泄漏检测方法。为了提高检测效率和减少假性报警的概率,在小泄漏事件的逻辑判断过程中引入了Westgard多规则质控思想,并结合漏损发生后流量增加的特点,对其进行适当改良。通过室外消防栓放水的方式在真实管网中模拟两个小泄漏事件,并利用流量数据对所提方法进行验证。结果表明,该方法能够有效地检测出小泄漏事件,可以作为供水管网主动漏损控制的辅助工具。Exponential weighted moving average algorithm has a cumulative effect and is capable of magnifying minor fluctuations.Based on this characteristic,a method suitable for small leakage detection in district metering area was proposed.To improve the detection efficiency and reduce the probability of false alarm,Westgard multi-rule quality control idea was introduced into the logical judgment process of small leakage events,and it was appropriately improved in combination with the characteristics of increased flow after leakage occurred.Two small leakage events were simulated in a real water pipe network by releasing water from an outdoor fire hydrant,and the proposed method was verified by flow data.This method was able to effectively detect small leakage events and could be used as an auxiliary tool for active leakage control in water supply network.

关 键 词：小泄漏检测 独立计量分区 指数加权移动平均算法 Westgard多规则质控方法 

分 类 号：TU991[建筑科学—市政工程]