WANG Hai-tao,TU Zheng-qin,ZHANG Kun,et al.Pipe Burst Monitoring Test of Water Supply Network Based on Intelligent Fire Hydrant[J].China Water & Wastewater,2021,37(21 21):33-40.
Pipe Burst Monitoring Test of Water Supply Network Based on Intelligent Fire Hydrant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
21 21
Page:
33-40
Column:
Date of publication:
2021-11-01
- Keywords:
- water supply network; pipe burst monitoring; intelligent fire hydrant; NB-IoT; transient signal
- Abstract:
- An intelligent fire hydrant network was used for online water pressure detection to solve the problem of pipe burst monitoring in municipal pipe network. Two kinds of looped municipal pipe network were selected in the experiment. The pipe burst was simulated by opening the fire hydrant valve, and the real-time pressure signal was collected by the intelligent fire hydrant pressure sensor and NB-IoT. There was transient pressure mutation signal in daily working conditions. Although the pressure transient signal caused by pipe burst had amplitude, it attenuated rapidly, and the transient pressure drop of the pipe burst was obviously greater than that of the steady pressure drop. Combined with the hydraulic model, it was further analyzed that the reasonable distribution of the monitoring sites, reasonable sampling and local linkage analysis could effectively identify the pipe burst signal.
Last Update:
2021-11-01