城市地下密闭空间可燃气体泄漏监测系统

Combustible Gas Leakage Monitoring System for Urban Underground Confined Spaces

针对燃气阀门井、雨污水井等地下密闭空间易出现燃气泄漏、可燃气体积聚的情况,提出基于窄带物联网(NB-IoT)技术的城市地下密闭空间可燃气体泄漏监测系统(以下简称监测系统)。对监测系统架构、泄漏监测装置设计、监测平台设计进行分析。将郑州市高新区作为试验场地,选择2处燃气阀门井、2处污水井、1处雨水井安装泄漏监测装置。由监测结果可知,监测系统的灵敏度和监测效果比较理想。

Aiming at the occurrence of gas leakage and flammable gas accumulation in underground confined spaces such as gas valve wells and rainwater and sewage wells,the combustible gas leakage monitoring system for urban underground confined spaces based on narrow-band Internet of Things(NB-IoT)technology(hereinafter referred to as the monitoring system)is proposed.The monitoring system architecture,leakage monitoring device design and monitoring platform design are analyzed.Taking Zhengzhou High-tech Zone as a test site,two gas valve wells,two sewage wells and one rainwater well are selected to install leakage monitoring devices.According to the monitoring results,the sensitivity and monitoring effect of the monitoring system are ideal.