矿用VOC气体分布式监测系统设计  

Design of Distributed Monitoring System for Mine VOC Gas

作　　者：冀鹏飞 Ji Pengfei(CCTEG Taiyuan Research Institute Co.,Ltd.,Taiyuan 030006,China;Shanxi Tiandi Coal Machinery Co.,Ltd.,Ltd Taiyuan 030006,China;National Engineering Laboratory for Coal Mining Machinery,Taiyuan 030032,China)

机构地区：[1]中国煤炭科工集团太原研究院有限公司,太原030006 [2]山西天地煤机装备有限公司,太原030006 [3]煤矿采掘机械装备国家工程实验室,太原030032

出　　处：《煤矿机械》2023年第12期4-7,共4页Coal Mine Machinery

基　　金：山西省重点研发计划项目(202202020101005);山西省青年科学研究项目(202103021223461);山西天地煤机装备有限公司科技重大项目(M2022-QN04)。

摘　　要：针对煤矿安全生产和煤矿机械防护的实际需要,提出了一种矿用挥发性有机化合物(VOC)气体分布式监测系统。系统采用节点化设计,各监测节点将感知电路进行模块化,单独给紫外灯驱动电路模块设计外壳封装,有效减小了矿井下复杂的电磁环境条件对微弱电流检测模块产生的干扰;设计了电压解调电路模块和湿度检测模块,准确把握矿井温、湿度环境因素对节点监测精度的影响。实验结果表明,各节点监测精度拟合系数优越,监测性能稳定,各节点灵敏度不低于6.042 mV/ppm。Aiming at the practical needs of safety production and mechanical protection in coal mine,a distributed monitoring system of volatile organic compounds(VOC)gas for mine was proposed.The system adopts node-oriented design,each monitoring node modularizes the sensing circuit,and separately designs the shell for the ultraviolet lamp drive circuit module,which effectively reduces the interference of the weak current detection module caused by the complex electromagnetic environment conditions under the mine.Voltage demodulation circuit module and humidity detection module are designed to accurately grasp the influence of mine temperature and humidity environmental factors on node monitoring accuracy.The experimental results show that the monitoring accuracy of each node is superior,the monitoring performance is stable,and the sensitivity of each node is not less than 6.042m V/ppm.

关 键 词：分布式监测 煤矿机械防护 紫外灯驱动 微弱电流检测模块 

分 类 号：TD711[矿业工程—矿井通风与安全] TP274[自动化与计算机技术—检测技术与自动化装置]