改进灵敏度矩阵的矿井通风故障源诊断及传感器布置研究  

Fault Source Diagnosis for Mine Ventilation Based on Improved Sensitivity Matrix and Its Wind Speed Sensor Setting

作　　者：赵丹[1] 潘竞涛[1,2] 

机构地区：[1]辽宁工程技术大学安全科学与工程学院 [2]煤炭科学研究总院沈阳研究院,辽宁沈阳110016

出　　处：《中国安全科学学报》2011年第2期78-84,共7页China Safety Science Journal

基　　金：国家自然科学基金资助(60772159)

摘　　要：利用当前的矿井通风安全监测监控系统,只能反映安设风速传感器的井巷风量发生变化,至于变化是由该条巷道故障引起的,还是由于拓扑关系原因引起的,都无法诊断故障源,通风系统的故障可以归结为分支的风阻发生变化。如果分析每一条分支风阻变化对通风系统的影响,即每一条分支都安设风速传感器是不可能的。因此,井下风速传感器的布置最小数量及位置问题也是研究的重点。改进灵敏度矩阵,建立分支灵敏度0-1矩阵和通风网络故障巷道范围库,用以确定可能引起风速超限的故障巷道范围。最后,提出最少全覆盖布点法,给出分支覆盖度和影响巷道范围库的概念,用以求得风速传感器的宏观布点。The current safety monitoring system used can only reflect the change of wind amount in roadway where wind speed sensors are set,and can not diagnose the fault sources for the changes.The faults in wind ventilation can be summed to the change of wind drag in branch roadways in the entire ventilation network.Considering that it is impossible to analyze the effect of every branch＇s wind drag on ventilation system and to set wind speed sensors for every branch,so the minimum number of wind speed sensors set and their locations are also the emphasis of this research.Firstly,the sensitivity matrix is improved,and then 0-1 sensitivity matrix of branch and fault roadway range library of ventilation network are built to determine those fault roadway ranges that are possible to cause wind speed to exceed its limits.Finally,the minimum and full coverage of distribution method are proposed,the concept of branch coverage degree and impact roadway range library are also given to get the macro-distribution of wind speed sensors.

关 键 词：矿井通风 故障源 分支 风阻 风速传感器 

分 类 号：X936[环境科学与工程—安全科学]