环境因素对细水雾灭火效能的影响  

The influence of environmental factors on the effectiveness of water mist fire extinguishing

作　　者：刘皓[1] 张天巍[1] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《消防科学与技术》2017年第10期1391-1393,共3页Fire Science and Technology

基　　金：河北省重点研发计划自筹项目(B2016507017);公安部重点实验室开放课题(KF201604)

摘　　要：基于大型气相动力学软件包CHEMKIN,利用PSR模型对细水雾抑制熄灭甲烷/空气浮力扩散杯式燃烧器火焰的最小灭火浓度进行计算,通过改变模型参数,分析环境温度、相对湿度和大气压强对细水雾最小灭火浓度的影响。结果表明:PSR模型对于预测惰性气体灭火剂的最小灭火浓度具有一定优势;细水雾最小灭火浓度随环境温度和大气压强的增加而增加,随相对湿度的增加而降低。Based on the large gas phase kinetics software package of CHEMKIN, the minimum extinguishing concentration （MEC） of water mist extinguishing the methane/air cup-burner diffusion flame was calculated by the PSR model. By changing the model parameter, the influence of environmental temperature, relative humidity and atmospheric pressure on the water mist MEC was analyzed. The results showed that the PSR model had some advantages in predicting the MEC of inert gas fire extinguishing agent; the water mist MEC increases with the environment temperature and pressure increasing, and decrease with the relative humidity increasing.

关 键 词：CHEMKIN 最小灭火浓度 细水雾 PSR模型 

分 类 号：X913.4[环境科学与工程—安全科学] TU892[建筑科学]