矿井火灾风烟流区域联动与智能调控系统研究
|
摘要
针对矿井通风异常情况下应急决策与智能调控水平不高、无法实现风烟流远程控制的现状,设计了矿井火灾风烟流区域联动与智能调控系统;结合通风网络结构,分析了火灾时期风烟流区域联动控制机理,即通过设置烟雾传感器、可调风门等通风设施及远程调控,实现火灾时期烟流区和非烟流区2个并联分支的风量按需分配;研究了矿井火灾风烟流智能调控的影响因素,通过分析矿井火灾前后通风网络结构,构建了火灾风烟流智能调控模型,并介绍了可视化功能实现算法。该系统根据火灾时期火区风阻、通风网络结构、主要通风机运行参数等得出各分支实时风量,通过模拟火灾过程计算关键巷道理想风量并设置阈值,当实际风量与阈值误差超过10%时远程调控风门开度,以实现最佳风量分配。应用结果表明,系统对巷道风量的模拟计算结果、可视化界面显示结果与现场测定结果具有很好的耦合性。
For existing status of low emergency decision-making and intelligent control level and inability to remotely control wind-smoke flow under abnormal conditions of mine ventilation,a regional linkage and intelligent control system of mine fire wind-smoke flow was designed.Combining with ventilation network structure,regional linkage control mechanism of wind-smoke flow during fire period was analyzed,which realized wind volume distribution according to needs of two parallel branches of smoke flowing zone and non-smoke flowing zone during fire period through setting smoke sensor,adjustable air doors and other ventilation equipments and remote control.Influence factors on intelligent control of mine fire wind-smoke flow were researched.An intelligent control model of wind-smoke flow during fire period was built through analyzing ventilation network structure before and after mine fire,and realization algorithm of visual function was also introduced.The system obtains real-time wind volume of each branch according to wind resistance,ventilation network structure and operation parameters of main ventilator during fire period,calculates ideal wind volume of key roadways through simulating fire process and sets a threshold value.When error between actual wind volume and the threshold value exceeds 10%,open degree of air door is controlled remotely,so as to realize optimal wind distribution.The application result shows that there is a perfect coupling among simulated calculation result of the system,displaying result on visual interface and field test result of wind volume in roadway.
For existing status of low emergency decision-making and intelligent control level and inability to remotely control wind-smoke flow under abnormal conditions of mine ventilation,a regional linkage and intelligent control system of mine fire wind-smoke flow was designed.Combining with ventilation network structure,regional linkage control mechanism of wind-smoke flow during fire period was analyzed,which realized wind volume distribution according to needs of two parallel branches of smoke flowing zone and non-smoke flowing zone during fire period through setting smoke sensor,adjustable air doors and other ventilation equipments and remote control.Influence factors on intelligent control of mine fire wind-smoke flow were researched.An intelligent control model of wind-smoke flow during fire period was built through analyzing ventilation network structure before and after mine fire,and realization algorithm of visual function was also introduced.The system obtains real-time wind volume of each branch according to wind resistance,ventilation network structure and operation parameters of main ventilator during fire period,calculates ideal wind volume of key roadways through simulating fire process and sets a threshold value.When error between actual wind volume and the threshold value exceeds 10%,open degree of air door is controlled remotely,so as to realize optimal wind distribution.The application result shows that there is a perfect coupling among simulated calculation result of the system,displaying result on visual interface and field test result of wind volume in roadway.
引文
[1]谢之康,王省身.矿井外因火灾计算机控制及有待解决的若干问题[J].中国安全科学学报,1998,21(1):124-129.XIE Zhikang,WANG Xingshen.Current status and outlook of the application of computer in exogenous mine fire control[J].China Safety Science Journal,1998,21(1):124-129.
[2]马洪亮,周心权.矿井火灾燃烧特性曲线的研究与应用[J].煤炭学报,2008,33(7):780-783.MA Hongliang,ZHOU Xinquan.Research and application of the characteristic curves in mine fire[J].Journal of China Coal Society,2008,33(7):780-783.
[3]何新建,蒋曙光,吴征艳,等.龙东煤矿西翼运输巷远控气动火灾应急救援系统[J].煤炭科学技术,2008,36(8):53-54.HE Xinjian,JIANG Shuguang,WU Zhengyan,et al.Mine fire disaster pneumatic remote control emergent rescue system in west wing transportation roadway of Longdong Mine[J].Coal Science and Technology,2008,36(8):53-54.
[4]王凯,蒋曙光,马小平,等.瓦斯爆炸致灾通风系统实验及应急救援方法[J].中国矿业大学学报,2015,44(4):617-622.WANG Kai,JIANG Shuguang,MA Xiaoping,et al.Experimental of the ventilation systems hazard by gas explosion and the methods of emergency rescue[J].Journal of China University of Mining &Technology,2015,44(4):617-622.
[5]王凯,蒋曙光,张卫青,等.矿井火灾应急救援系统的数值模拟及应用研究[J].煤炭学报,2012,37(5):857-862.WANG Kai,JIANG Shuguang,ZHANG Weiqing,et al.Numerical simulation and application research of mine fire emergency rescue system[J].Journal of China Coal Society,2012,37(5):857-862.
[6]周延,王省身.水平巷道烟流滚退发生条件的研究[J].煤炭学报,1998,23(4):362-365.ZHOU Yan, WANG Xingshen.Conditions for formation of a reverse smoke flow in a horizontal tunnel[J].Journal of China Coal Society,1998,23(4):362-365.
[7]王海燕,周心权.平巷烟流滚退火烟羽流模型及其特征参数研究[J].煤炭学报,2004,29(2):190-194.WANG Haiyan,ZHOU Xinquan.Fire buoyant plume model and characteristic parameters of a reverse smoke in a horizontal airway during mine fire[J].Journal of China Coal Society,2004,29(2):190-194.
[8]WU Y,BAKAR M Z A.Control of smoke flow in tunnel fires using longitudinal ventilation systems-a study of the critical velocity[J].Fire Safety Journal,2000,35(4):363-390.
[9]周延.一个新的水平隧道火灾烟气逆流层长度模型研究[J].中国矿业大学学报,2007,36(5):569-572.ZHOU Yan. A novel model for length of countercurrent smoke layer in horizontal tunnel fire[J].Journal of China University of Mining &Technology,2007,36(5):569-572.
[10]周福宝,王德明.巷(隧)道火灾烟流滚退距离的无因次关系式[J].中国矿业大学学报,2003,32(4):407-410.ZHOU Fubao,WANG Deming.Non-dimensional expression for backflow distances of smoke and hot gases in roadway or tunnel fire[J].Journal of China University of Mining &Technology,2003,32(4):407-410.
[11]VANQUELIN O,WU Y.Influence of tunnel width on longitudinal smoke control[J].Fire Safety Journal,2004,35(6):420-426.
[12]周延.纵向通风水平隧道火区阻力特性[J].中国矿业大学学报,2006,35(6):703-707.ZHOU Yan.Flow resistance characteristics of fire zone in horizontal tunnel with longitudinal ventilation[J].Journal of China University of Mining &Technology,2006,35(6):703-707.
[13]夏云春,吴静.可燃性PVC电缆燃烧时的火蔓延速度[J].青岛科技大学学报(自然科学版),2008,29(4):340-344.XIA Yunchun, WU Jing.Study on the fire propagation velocity of PVC cable[J].Journal of Qingdao University of Science and Technology(Natural Science Edition),2008,29(4):340-344.
[14]王凯,蒋曙光,张卫清,等.矿井火灾救灾中风量远程调控技术及数值分析[J].煤炭学报,2012,37(7):1171-1176.WANG Kai,JIANG Shuguang,ZHANG Weiqing,et al.Remote control technology and numerical analysis of airflow in coal mine fire disaster relief process[J].Journal of China Coal Society,2012,37(7):1171-1176.
[15]王凯.煤矿热动力灾害控制机理及远程应急救援系统研究[D].徐州:中国矿业大学,2012.
[2]马洪亮,周心权.矿井火灾燃烧特性曲线的研究与应用[J].煤炭学报,2008,33(7):780-783.MA Hongliang,ZHOU Xinquan.Research and application of the characteristic curves in mine fire[J].Journal of China Coal Society,2008,33(7):780-783.
[3]何新建,蒋曙光,吴征艳,等.龙东煤矿西翼运输巷远控气动火灾应急救援系统[J].煤炭科学技术,2008,36(8):53-54.HE Xinjian,JIANG Shuguang,WU Zhengyan,et al.Mine fire disaster pneumatic remote control emergent rescue system in west wing transportation roadway of Longdong Mine[J].Coal Science and Technology,2008,36(8):53-54.
[4]王凯,蒋曙光,马小平,等.瓦斯爆炸致灾通风系统实验及应急救援方法[J].中国矿业大学学报,2015,44(4):617-622.WANG Kai,JIANG Shuguang,MA Xiaoping,et al.Experimental of the ventilation systems hazard by gas explosion and the methods of emergency rescue[J].Journal of China University of Mining &Technology,2015,44(4):617-622.
[5]王凯,蒋曙光,张卫青,等.矿井火灾应急救援系统的数值模拟及应用研究[J].煤炭学报,2012,37(5):857-862.WANG Kai,JIANG Shuguang,ZHANG Weiqing,et al.Numerical simulation and application research of mine fire emergency rescue system[J].Journal of China Coal Society,2012,37(5):857-862.
[6]周延,王省身.水平巷道烟流滚退发生条件的研究[J].煤炭学报,1998,23(4):362-365.ZHOU Yan, WANG Xingshen.Conditions for formation of a reverse smoke flow in a horizontal tunnel[J].Journal of China Coal Society,1998,23(4):362-365.
[7]王海燕,周心权.平巷烟流滚退火烟羽流模型及其特征参数研究[J].煤炭学报,2004,29(2):190-194.WANG Haiyan,ZHOU Xinquan.Fire buoyant plume model and characteristic parameters of a reverse smoke in a horizontal airway during mine fire[J].Journal of China Coal Society,2004,29(2):190-194.
[8]WU Y,BAKAR M Z A.Control of smoke flow in tunnel fires using longitudinal ventilation systems-a study of the critical velocity[J].Fire Safety Journal,2000,35(4):363-390.
[9]周延.一个新的水平隧道火灾烟气逆流层长度模型研究[J].中国矿业大学学报,2007,36(5):569-572.ZHOU Yan. A novel model for length of countercurrent smoke layer in horizontal tunnel fire[J].Journal of China University of Mining &Technology,2007,36(5):569-572.
[10]周福宝,王德明.巷(隧)道火灾烟流滚退距离的无因次关系式[J].中国矿业大学学报,2003,32(4):407-410.ZHOU Fubao,WANG Deming.Non-dimensional expression for backflow distances of smoke and hot gases in roadway or tunnel fire[J].Journal of China University of Mining &Technology,2003,32(4):407-410.
[11]VANQUELIN O,WU Y.Influence of tunnel width on longitudinal smoke control[J].Fire Safety Journal,2004,35(6):420-426.
[12]周延.纵向通风水平隧道火区阻力特性[J].中国矿业大学学报,2006,35(6):703-707.ZHOU Yan.Flow resistance characteristics of fire zone in horizontal tunnel with longitudinal ventilation[J].Journal of China University of Mining &Technology,2006,35(6):703-707.
[13]夏云春,吴静.可燃性PVC电缆燃烧时的火蔓延速度[J].青岛科技大学学报(自然科学版),2008,29(4):340-344.XIA Yunchun, WU Jing.Study on the fire propagation velocity of PVC cable[J].Journal of Qingdao University of Science and Technology(Natural Science Edition),2008,29(4):340-344.
[14]王凯,蒋曙光,张卫清,等.矿井火灾救灾中风量远程调控技术及数值分析[J].煤炭学报,2012,37(7):1171-1176.WANG Kai,JIANG Shuguang,ZHANG Weiqing,et al.Remote control technology and numerical analysis of airflow in coal mine fire disaster relief process[J].Journal of China Coal Society,2012,37(7):1171-1176.
[15]王凯.煤矿热动力灾害控制机理及远程应急救援系统研究[D].徐州:中国矿业大学,2012.