矿井下行通风巷道火灾的数值模拟研究  

Numerical Simulation of Fire in the Descentional Ventilation Roadway of Mine

作　　者：张晓涛[1] 王莉霞[1] 李列平[1] 

机构地区：[1]中国地质大学工程学院,湖北武汉430074

出　　处：《安全与环境工程》2014年第3期94-97,102,共5页Safety and Environmental Engineering

摘　　要：为了研究矿井在下行通风巷道发生火灾时的烟气浓度和温度的变化规律,本文运用FDS火灾模拟软件,分别设置正常通风、加大通风量和开通排烟支路3种火灾模拟场景,并对3种场景下矿井下行通风巷道火灾时的烟气浓度和温度进行了数值模拟对比研究。结果表明:在开通排烟支路的情况下,能有效控制高温烟气逆流进入进风大巷,且对工作面破坏最小,利于井下人员疏散,并提出了合理的控制措施,以为有效控制矿井下行通风巷道火灾提供指导。For the purpose of studying the distribution of temperature and concentration of the smoke gos in the fire in the descentional ventilation roadway in mine,this paper uses FDS to simulate the fire in the descentional ventilation roadway and discusses three scenarios： the normal amount of wind, the large amount of wind and the setting of exhaust branch. The simulation results show that, by the setting of exhaust branch, the smoke reversely flowing into intake airflow roadway can be effectively controlled and the de- struction of working face is the minimum so as to be helpful to the evacuation of mine workers. At last,according to the simulation results,the paper puts forward a reasonable control program against the descentional ventilation fire to provide the theoretical guidance for the effective control of the mine fire.

关 键 词：矿井火灾 下行通风巷道 FDS 数值模拟 

分 类 号：X936[环境科学与工程—安全科学] TD752[矿业工程—矿井通风与安全]