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为了解停放在建筑物的摩托车火灾延烧危险性,以及如何用水喷淋阻止火灾延烧,以全尺寸实验的方法,分析热释放率及延烧行为。结果表明:摩托车火灾成长期热释放率Q/MW=0.00019(t/s)2。摩托车火灾的火焰高度可达3.5m以上,4.5m高度的温度达784℃。在研究的实验情境下,当喷淋头配置在摩托车正上方,水喷淋密度12L/(min.m2)时,可以压制火焰高度在2m左右,阻止火灾接焰延烧到上方的建筑物;当水喷淋密度30L/(min.m2)时,可以压制火焰高度在1m以下,阻止火焰向上方的建筑物及相邻的摩托车延烧。
In order to understand the danger of motorcycle fire retarding parked in a building and how to prevent the fire from spreading with water spray, the heat release rate and the burning behavior were analyzed by the full-scale experiment. The results show that the heat release rate of motorcycle during fire growth is Q / MW = 0.00019 (t / s) 2. Motorcycle fire flame height up to 3.5m, 4.5m height of the temperature of 784 ℃. Under the experimental conditions studied, when the sprinkler head is arranged directly above the motorcycle and the water spray density is 12L / (min.m2), the height of the flame can be suppressed to about 2m to prevent the fire from spreading to the buildings above the flame; When the water spray density 30L / (min.m2), you can suppress the flame height of 1m or less, to prevent the flame to the upper buildings and adjacent motorcycle burn.