基于Pyrosim的矿井工作面火灾数值模拟研究

Numerical Simulation of Mine Working Face Fire based on Pyrosim

为了研究矿井工作面火灾的蔓延情况,以柳湾煤矿61122工作面为基础,建立了尺寸为60 m×4 m×3.2 m和100 m×4 m×3.2 m的Pyrosim模型,用来模拟火灾发生时巷道内烟气的运移规律、温度分布情况。结果表明:当风速≥2 m/s时,可以有效抑制烟流逆退,使火源上风侧区域成为安全范围。

In order to study the spread of mine working face fire,based on the 61122 working face of Liuwan Coal Mine,the 60 m×4 m×3.2 m and 100 m×4 m×3.2 m Pyrosim model were established to simulate the migration law of smoke and temperature distribution in the roadway when the fire occurred.The results show that when the wind speed is greater or equal than 2 m/s,the fire smoke rolling back can be effectively inhibited,and the temperature on the upwind side of the fire source decreases gradually.