充填工作面异常气体对传感器交叉干扰的影响研究  

Study on the impact of abnormal gases in filling work faces on sensor cross-interference

作　　者：陆伟[1,2] 罗瑞 张青松 卓辉 李金亮 朱思超 LU Wei;LUO Rui;ZHANG Qingsong;ZHUO Hui;LI Jinliang;ZHU Sichao(School of Safety and Engineering,Anhui University of Science and Technology,Huainan Anhui 232001,China;Anhui Province University Engineering Technology Research Center for Safe and Efficient Mining,Anhui University of Science and Technology,Huainan Anhui 232001,China;Daizhuang Coal Mining Company,Zaozhuang Mining(Group)Co.,Ltd.,Zaozhuang Shandong 277000,China)

机构地区：[1]安徽理工大学安全科学与工程学院,安徽淮南232001 [2]安徽理工大学矿山安全高效开采安徽省高校工程技术研究中心,安徽淮南232001 [3]枣庄矿业(集团)岱庄煤业有限公司,山东枣庄277000

出　　处：《中国安全科学学报》2025年第2期40-48,共9页China Safety Science Journal

基　　金：国家重点研发计划(2023YFC3009102);国家自然科学基金资助(52204192);安徽省重点研究与开发计划项目(2022m07020006);安徽理工大学高层次引进人才科研启动基金资助(2021yjrc42)。

摘　　要：为明确充填工作面回风隅角CH_(4)、CO传感器异常报警的具体原因,开展传感器异常报警诱因的系统性分析。首先,通过充填材料程序升温-气相色谱(GC)试验,并结合现场GC分析结果,判断CH_(4)、CO传感器报警是否由CH_(4)、CO气体体积分数超限所致;然后,利用便携式气体检测仪监测各类充填原材料,确定导致传感器报警的主要充填原材料;最后,进行GC-质谱(MS)试验,分析胶黏剂挥发性成分及其对CH_(4)、CO传感器的干扰效应。结果表明:CH_(4)、CO传感器报警由胶黏剂挥发气体引起,并非CH_(4)、CO气体体积分数超限;胶黏剂挥发气体的主要成分为烷烃类,次要成分为醇酯类等其他气体;对CH_(4)传感器的主要干扰气体为C_(5)H_(12)、C_(6)H_(12)、C_(6)H_(14)等烷烃类气体,次要干扰气体为CH_(4)O、C_(2)H_(4)O_(2)、C_(3)H_(8)O_(2)等,试验所测10种可燃气体均对CH_(4)传感器产生交叉干扰;对CO传感器的干扰气体为CH_(4)O、C_(2)H_(4)O_(2)、C_(3)H_(8)O_(2),传感器在短期内处于异常气体气氛下,具备一定抗干扰能力,但长期暴露下其稳定性和抗干扰能力下降。In order to elucidate the specific causes of abnormal alarms from CH_(4)and CO sensors in the return corner of the backfill working face,a systematic investigation was conducted.Initially,a programmed heating-gas chromatography(GC)experiment was carried out on filling materials,complemented by on-site GC measurements,to evaluate whether the alarms were attributable to CH_(4)and CO concentrations exceeding threshold limits.Subsequently,a portable gas detector was employed to monitor various filling materials,identifying the primary materials responsible for triggering the sensor alarms.Finally,GC-mass spectrometry(MS)analysis was performed to characterize the volatile components of adhesives and their interference effects on CH_(4)and CO sensors.The results indicate that the alarms triggered by CH_(4)and CO sensors were caused by the volatile gases from adhesives,rather than by an excessive concentration of CH_(4)or CO.The primary constituents of the adhesive VOCs were alkanes,while secondary components included alcohols and esters.Key interfering substances for CH_(4)sensor were alkanes such as C_(5)H_(12),C_(6)H_(12),and C_(6)H_(14),with minor contributions from alcohols and esters such as CH_(4)O,C_(2)H_(4)O_(2),and C_(3)H_(8)O_(2).All ten tested combustible gases exhibited cross-interference effects on CH_(4)sensor.Interfering substances for CO sensor included CH_(4)O,C_(2)H_(4)O_(2),and C_(3)H_(8)O_(2).While the sensors demonstrated short-term resilience to interference under abnormal gas atmospheres,their stability and anti-interference performance significantly deteriorated with prolonged exposure.

关 键 词：充填工作面 异常气体 传感器 交叉干扰 回风隅角 异常报警 胶黏剂 

分 类 号：X936[环境科学与工程—安全科学]