复合气体灭火剂协同灭火性能研究  

The study on synergism of binary gas fire suppressants

作　　者：赵洪海[1] 

机构地区：[1]公安部消防局警官培训基地,天津300402

出　　处：《消防科学与技术》2017年第2期233-237,共5页Fire Science and Technology

摘　　要：针对复合气体混合后的协同灭火现象,通过试验测量和理论分析研究复合比对复合气体协同作用能力的影响。采用杯式燃烧器,调节两种灭火剂的流量比例进行灭火试验,得出复合灭火剂的灭火浓度及协同指数,分析灭火机理。结果表明:两种以物理灭火作用为主的气体灭火剂混合使用,没有出现协同作用;当惰性气体与弱化学灭火作用为主的气体混合使用时,出现微弱的负协同作用;以化学灭火作用为主的灭火剂与以物理灭火作用为主的气体灭火剂复合,能产生积极的协同灭火作用;以弱化学机理和化学机理为主的两种气体灭火剂混合时,也出现正的协同灭火作用。Aiming at the synergism nts, experimental and theoretical of the binary fire suppressa- analysis were carried out to estimate influence of mixed ratio on the synergism of binary gas fire suppressants. The experiments were carried out by cup burner with different mixed ratio of two gas fire suppressants. The fire suppression concentration and synergism index of bina- ry gas fire suppressants were obtained to analyze the fire extin- guishing mechanism. The results showed that there is no coop-erativity by mixing two inert agents. There is weak negative synergism by mixing inert gas with weak chemical effect gas suppressant. There is synergism by mixing inert gas with chemical gas suppressant. There is synergism by mixing chemi- cal gas suppressant with weak chemical effect gas suppressant.

关 键 词：复合灭火介质 气体灭火剂 协同作用 协同指数 复合比 物理灭火 化学灭火 

分 类 号：X924.4[环境科学与工程—安全科学] TQ569[化学工程—炸药化工]