供水管网示踪气体检漏应用及复杂地质适应性研究

Application of Tracer Gas Leak Detection in Water Supply Pipeline and Its Adaptability to Complex Geology

摘要

针对乐清市沿海盐碱地、城区硬化路面、山地绿化地等典型场景下供水管网漏损分布不均、检测难度大的问题，本研究研发基于95%氮气与5%氢气的混合介质示踪检漏技术。通过系统分析示踪气体在不同地质条件下的扩散路径、渗透速率及浓度衰减特性，优化检测布点密度、采样频次与参数配置方案，并开展多区域试点验证。结果表明，该技术可精准定位隐蔽漏点，有效提升管网漏损检测效率与精度，为供水管网精细化漏损控制提供了科学技术支撑，具有重要的工程应用价值。

Abstract

To address the challenges of uneven leakage distribution and detection difficulties in water supply networks across typical scenarios including coastal saline-alkali land, urban paved roads, and mountainous green spaces in Yueqing City, this study developed a tracer detection technology using a 95% nitrogen and 5% hydrogen gas mixture. Through systematic analysis of tracer gas diffusion paths, permeation rates, and concentration decay characteristics under various geological conditions, the research optimized detection point density, sampling frequency, and parameter configurations, followed by multi-regional pilot validation. Results demonstrate that this technology can accurately locate concealed leakage points, significantly improving detection efficiency and precision. It provides scientific support for refined leakage control in water supply networks, demonstrating substantial engineering application value.

关键词

供水管网 / 气体示踪检漏 / 漏损控制 / 地质适应性

Key words

water supply network / gas tracer leak detection / leakage control / geological adaptability

参考文献

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