论文部分内容阅读
为分析火灾过程中巷道风速对工作面巷道中烟气扩散速度与距离的影响,对工作面巷道火灾烟气扩散过程进行了分析,采用FLUENT对不同风速条件下工作面巷道中CO烟气扩散过程与规律进行了数值模拟与分析,结果表明:在回风侧巷道中CO扩散距离与巷道风速呈正相关,在进风侧巷道与风速呈负相关,同时,CO在进风巷道扩散过程中出现停滞状态,随风速增加,扩散停滞时间与距离逐渐减小。
In order to analyze the influence of roadway wind speed on the diffusion speed and distance of flue gas in working face tunnel during fire, the process of fire smoke diffusion in face tunnel was analyzed. The FLUENT was used to analyze the process of CO flue gas diffusion in roadway under different wind speed conditions The results show that the diffusion distance of CO in the return air side roadway is positively correlated with the roadway air speed, and the roadway in the intake side is negatively correlated with the wind speed. Meanwhile, CO stagnates in the diffusion process of the inlet airway State, with the increase of wind speed, diffusion stagnation time and distance gradually reduced.