摘要
城市化进程加速背景下,城市燃气管网呈现布局复杂、密闭空间作业、人员密集区域覆盖及多市政管线交叉的特点,叠加老旧管网超负荷运行、老化锈蚀、非法作业及人为破坏等因素,导致燃气泄漏事故频发,严重威胁人民生命财产安全,而传统监测技术及产品已无法满足当前安全管理需求。为解决上述难题,提出了燃气管网全天候泄漏监测系统及方法,通过融合可燃气体浓度监测、液位监测、施工振动监测、防盗报警及跟踪定位核心功能,研发智能化、自动化监测系统,并且设计了地面标识桩式与地埋式两种安装形态的适配产品。该系统实现燃气管网全覆盖24 h在线监测,可实时捕捉泄漏及安全风险信号,快速定位隐患。实践应用表明,系统泄漏监测响应时间40~160 s,泄漏定位误差≤5 m,25 m内可识别施工振动监测,GPS定位误差≤1 m,有效提升管网风险预警时效性与管控精准度,为城市燃气管网安全运行提供全流程技术支撑。
Against the backdrop of accelerated urbanization,urban gas pipeline networks exhibit characteristics such as complex layouts,confined space operations,coverage of densely populated areas,and intersections with multiple municipal pipelines.Coupled with factors including overloaded operations,aging and corrosion of old pipelines,illegal operations,and man-made damage,gas leakage accidents occur frequently,seriously threatening public safety and property.However,traditional monitoring technologies and products can no longer meet the current safety management demands.To address these challenges,this study proposes an all-weather leakage monitoring system and method for gas pipeline networks.By integrating core functions such as combustible gas concentration monitoring,liquid level monitoring,construction vibration monitoring,anti-theft alarm,and tracking and positioning,an intelligent and automated monitoring system has been developed,accompanied by adaptive products in two installation forms:ground marker pile type and underground buried type.The system achieves full-coverage 24 h online monitoring of gas pipeline networks,enabling real-time capture of leakage and safety risk signals and rapid localization of potential hazard locations.Practical applications have shown that the system′s leakage monitoring response time is 40 to 160 seconds,the leakage location accuracy is no more than 5 meters,the construction vibration monitoring within 25 meters is identified,and the GPS positioning accuracy is no more than 1 meter.This effectively enhances the timeliness of risk early warning and the precision of control in the pipeline network,providing full-process technical support for the safe operation of urban gas pipeline networks.
作者
陈曦
王怀杰
喻干
郑建刚
姬竟
田飞
魏海云
李颖
Chen Xi;Wang Huaijie;Yu Gan;Zheng Jiangang;Ji Jing;Tian Fei;Wei Haiyun;Li Ying(CNPC Research Institute of Safety&Environment Technology Co.,Ltd.,Beijing,102206;PetroChina Coalbed Methane Co.,Ltd.,Beijing,100020;PetroChina Changqing Oilfield Company,Shanxi,Xi'an,710000)
出处
《安全、健康和环境》
2026年第1期27-32,共6页
Safety Health & Environment
关键词
燃气泄漏
泄漏监测
安装方式
液位监测
施工振动监测
gas leakage
gas leak monitoring
installation method
liquid level monitoring
construction vibration monitoring
