细水雾在模拟巷道中的灭火特性实验研究

摘要

通过建立模拟巷道灭火实验平台及细水雾发生装置,采用控制变量法,对细水雾在模拟巷道中的灭火特性进行了实验研究,并对其影响因素进行了分析.实验表明:细水雾能有效熄灭模拟巷道内部火灾,灭火迅速且效果明显.细水雾对CO等有毒有害气体的生成具有明显的抑制作用.细水雾粒径、模拟巷道通风风速、模拟巷道倾斜角度和通风方式对细水雾抑制、熄灭模拟火源的效果均有一定的影响.%Experimental study was carried out on the fire extinguishing characteristics of water mist in the simulation tunnel by building the fire extinguising test platform of the simulation tunnel and the generation device of the water mist and using the variable control method, and analysis was made on its influence factors. The experiments showed that the water mist can effectively and rapidly extinguish the fire in the simulation tunnel and its fire extinguishing effect was obvious. The zise of water mist, the air velocity in the simulation tunnel, the inclination angle and ventilation mode of the simulation tunnel have some influence on the water mist in suppressing and extinguishing the simulated fire source.