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随着楼房建筑的日益增多,楼房火灾,特别是闷顶火灾的扑救,已成为消防工作中越来越突出的问题。前些年我仃扑救了闷顶火灾21起,成功率为86%。下面我们就谈谈在灭火实践中的体会。闷顶火灾有三个特点:一是不易发现。闷顶火灾初期,空气比较充足,火势发展快,烟雾小,并且闷顶结构严密,从外部不易发现。我们扑救的21起闷顶火灾,发现较晚的就有16起。二是燃烧猛烈,蔓延迅速。随着燃烧时间的延长,闷顶内温度增高,一旦火势从不严密的地方烧出孔洞时,气体对流,火势迅速扩大蔓延。三是易倒塌,火灾面积大。当火势冲出屋顶后,由于屋顶支点多,空间大,炽
With the increasing building construction, building fires, especially the boring fire fighting, has become an increasingly prominent problem in the fire protection work. A few years ago I Ding save the boring fire 21, the success rate of 86%. Below we will talk about the experience of fire fighting practice. Smoldering fire has three characteristics: First, not easy to find. Boredom the beginning of the fire, the air is more adequate, the rapid development of fire, smoke is small, and the structure of the top boring, not easy to find from the outside. 21 battered fires we put out and found 16 later. Second, violent combustion, rapid spread. With the extension of burning time, the temperature in the top of boredom is increased, and once the fire burns out of the hole where the fire is not tight, the gas convects and the fire spreads rapidly. Third, easy collapse, fire area. When the fire rushed out of the roof, due to the roof fulcrum, space, Chi