仓库火灾排烟扑救方式的有效性探讨

在实际工作中,对仓库火灾是否采取排烟措施和排烟量的确定基本依靠指挥员的经验,这种纯经验方法已不能满足日益复杂的仓储类火灾处置和预案制订的工作要求,给消防工作带来了新的挑战。通过数值模拟手段,对某塑料仓库火灾场景进行重现,对火灾扑救中采取排烟措施后的火灾发展情况进行模拟分析,并通过对火灾场景的高度2.0m处的平均温度、炭颗粒浓度、热释放速率等相关参数计算,将计算结果与实际火灾发生过程中的记录报告进行比较分析,探讨该类火灾扑救中采取排烟措施的可行性和科学性。

On the Effectiveness of Smoke Evacuation Measures Used to Rescue Warehouse Fires

Currently,in practice,the amount of smoke evacuation is determined merely by the experience of the commander in rescuing a warehouse fire.This kind of pure experience method can＇t meet the need of complicated warehouse fire and fire-fighting,which constitutes a new challenge.This paper uses a digital means to simulate a plastic material warehouse fire scene,and then calculates the fire development after smoke evacuation,and analyzes the average temperature of the height of 2 meters,soot density,heat release rate,and other related parameters in the fire zone.Based on comparison of the calculation results,we discuss the smoke evacuation measure＇s feasibility.