WANGHai-tao,GEQi,JIANGAn-hua,et al.Application of Hydrophone Infrasound Waves in Leak Detection of Large-diameter Water Supply Pipelines[J].China Water & Wastewater,2024,40(19):39-44.
Application of Hydrophone Infrasound Waves in Leak Detection of Large-diameter Water Supply Pipelines
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第19期
Page:
39-44
Column:
Date of publication:
2024-10-01
- Keywords:
- water supply pipeline; leak detection; hydrophone; infrasound wave; feature analysis method; energy accumulation method; AI learning algorithms
- Abstract:
- Due to the fast attenuation of high-frequency vibration noise, deep burial, and large spacing between inspection wells, conventional methods such as manual leak detection or noise logger cannot be effective for large-diameter water pipelines. In response to this issue, through the analysis of simulated leakage signals collected by infrasonic hydrophones with different leak sizes, external media at different leak points, and pipelines with different diameters, it was found that the leakage signals of large-diameter pipelines were mainly low-frequency components, mostly infrasonic components. Further application of analysis methods such as eigenvalue method, energy accumulation method, and AI could achieve good detection results. Research has shown that using hydrophones to detect leaks can timely detect remote leakage points, filling the gap of conventional methods for detecting leaks in large-diameter water supply pipelines and better ensuring the safe operation of urban water supply systems.
Last Update:
2024-10-01