基于NB-IoT和DMA技术相结合的小区漏损控制分析  

Analysis of Leakage Management in Community Based on Combination of NB-IoT and DMA Technology

作　　者：龚珑聪 卓雄 许俊鸽[3] GONG Long-cong;ZHUO Xiong;XU Jun-ge(Fuzhou City Construction Design&Research Institute Co.Ltd.,Fuzhou 350001,China;Fuzhou Water Supply Co.Ltd.,Fuzhou 350001,China;College of Civil Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州城建设计研究院有限公司,福建福州350001 [2]福州市自来水有限公司,福建福州350001 [3]福州大学土木工程学院,福建福州350108

出　　处：《中国给水排水》2021年第13期40-46,共7页China Water & Wastewater

基　　金：福建省住建厅科研项目(2017-K-54)。

摘　　要：选取福州市世纪蓝景城小区作为基于窄带物联网(NB-IoT)和独立计量区(DMA)技术相结合的小区定量漏损管控试点,NB-IoT智能远传水表采集数据实时传送至漏损平台,根据连续监测数据确定夜间最小流量检测限,及时判断新的漏损点。对漏损维修记录进行归纳分析得知漏损常见形态及分布情况,发现暗漏频发于各栋楼的引入管,评估决策后更换引入管,同时安装NB户表。该试点历经15个月完成改造,改造完成后夜间最小流量稳定在2.5 m^(3)/h以下。平台连续监测12个月的实时数据表明,月真实漏损率均低于5%,居民户均日用水量和居民户均夜间合法用水量之间呈现较显著的线性关系。将NB-IoT和DMA技术相结合可快速且准确地识别漏损点并进行修复,有效控制了管网漏损量,节约水资源量约28×10^(4)m^(3),能够为小区供水管网定量漏损控制提供借鉴。Quantitative leakage management of water supply and distribution network of Century Blue King City Community in Fuzhou was analyzed based on combination of NB-IoT and DMA. Real-time data were collected and transmitted to the leakage platform by NB-IoT intelligent remote water meters. The minimum night flow was determined according to continuous monitoring data, and the new water leakage points were discovered in time. The common pattern and distribution of leakage could be identified by summarizing and analyzing the leakage maintenance records. It was found that the leakage frequently occurred in the service pipe of each building. It was thus decided to replace the service pipes and install NB intelligent remote water meter after evaluation. The project was completed after 15 months of transformation, and the minimum night flow was always less than 2.5 m^(3)/h. The real-time data continuously monitored by the platform for 12 months indicated that the averaged monthly leakage ratio was all lower than 5%, and there was a significant linear relationship between the average daily and night legal resident water consumptions. Through the combination of NB-IoT and DMA technology, the leakage points could be quickly and accurately identified and repaired, and the leakage of the pipeline network could be effectively controlled, which saved about 28×10^(4) m^(3) water resources. The practice can provide reference for quantitative leakage control of residential water supply network.

关 键 词：分区计量 窄带物联网 漏损控制 供水管网 漏损率 

分 类 号：TU991[建筑科学—市政工程]