热气溶胶灭火剂扑灭固体木垛火的实验研究

文章系统分析了热气溶胶灭火剂抑制A类火能力的影响因素，并用SQ灭火剂在全淹没条件下进行实验，研究了灭火剂用量、灭火室大小、木垛的预燃程度和木垛结构大小对灭火效果的影响规律，结果表明SQ热气溶胶灭火剂抑制A类火比B类火困难得多，此外灭火效果与木垛预燃程度、木垛的结构尺寸有关，与灭火实验所用的灭火室大小关系不大。并指出在评价热气溶胶灭火剂扑灭A类木垛火能力时，应详细给出灭火实验所采用的条件，特别是火灾模型的情况。

Ability of Hot Aerosol Extinguishant to Extinguish Wood Cr ib Fire

In this paper, factors affecting the ability of hot aerosol e xtinguishant to extinguish class A fire are systematically analyzed. Experiments are conducted to study the ability of SQ extinguishant for class A fire in an e nclosed room, whereby the effects of extinguishant quantity, volume of laborator y, pre-combustion degrees and sizes of wood crib are discussed in details. By ex periments it is concluded that class A fire is generally more difficult to be ex tinguished than class B fire, and extinguishment effect is closely linked to pre -combustion degrees and sizes of wood crib, but volume of laboratory has little effect. It is also pointed out that experimental conditions especially fire mode l used should be shown when the ability of hot aerosol extinguishant to extingui sh class A fire is evaluated.