摘要
针对城市下水道等污水管网易产生甲烷等易燃气体,利用激光甲烷检测技术在抗干扰能力、测量精度和稳定性、气体吸收单一选择性和防爆等方面的优势,设计了激光甲烷一体化传感探头气室,通过光路接口接入到传感器光电转换电路,提高了光路的抗形变和抗振动的能力,保障了光路的稳定性;设计了一种基于激光甲烷检测技术的危险源气体监控终端,应用于易燃易爆的危险气体环境中,监控终端与软件平台之间采用远程无线数据通信传输,实现对污水管网环境中有害气体浓度的连续监测、数据上传、自动预警、自动排风等功能,实验测试结果表明,甲烷浓度检测数据准确,工作稳定性高。
Aiming at the generation of methane and other flammable gases such as methane from sewage pipes in urban sewer networks,the advantages of laser methane detection technology in anti-interference ability,measurement accuracy and stability,single selectivity of gas absorption,and explosion-proof are designed.The probe air chamber is connected to the sensor photoelectric conversion circuit through the optical path interface,which improves the anti-deformation and anti-vibration capabilities of the optical path and ensures the stability of the optical path.A dangerous source gas monitoring terminal based on laser methane detection technology is designed.It is used in flammable and explosive dangerous gas environments.Remote wireless data communication is used between the monitoring terminal and the software platform to achieve continuous monitoring of harmful gas concentrations in the sewage pipe network environment,data upload,automatic early warning,automatic exhaust,etc.Experimental test results show that the methane concentration detection data is accurate and the work stability is high.
作者
梁光清
LIANG Guangqing(Chongqing Research Institute of China Coal Technology&Engineering Group Corp.,Chongqing 400039,China)
出处
《自动化与仪器仪表》
2021年第1期108-111,共4页
Automation & Instrumentation
基金
中煤科工集团科技创新创业资金专项重点项目“智慧城管综合管控平台关键技术及应用示范”(No.2018ZD007)。
关键词
激光甲烷检测技术
污水管网
危险源
本质安全型
监控终端
laser methane detection technology
sewage pipe network
danger source
intrinsically safe
monitoring terminals
