火场烟气和排烟系统对火灾救援的影响

摘要

火灾发生时,火灾现场产生的烟气具有毒性,减光性,恐惧性和灼伤性四大危害,是逃生和火灾救援的最大威胁,为了提高被困人员的逃生几率,加快消防人员的救援速度,及时排出烟气是非常重要的.通过介绍自然排烟系统、机械排烟系统和喷雾水排烟三类常用排烟方法,分析其在火灾救援过程中的作用,为火灾救援提供帮助.%In the event of fire,the smoke generated by the fire is toxic,dimming,fearful and burnable, which is the biggest threat to escaping and fire rescue.In order to improve the escaping chance of trapped personnel and the speed of fire fighting,it is very important to timely discharge flue gas. In this papaer,three types of methods,i.e.natural smoke-exhausting system,mechanical smoke-exhausting system and water-spraying smoke extraction,are introduced,and their roles in the res-cuing process are analyzed,which can provide help for the rescue.