干粉灭火剂吸湿性能的影响因素及检测方法分析  

Influence factors and detection methods of moisture absorption performance of dry powder fire extinguishing agent

作　　者：李姝[1] 陈培瑶[1] 王帅[1] LI Shu;CHEN Pei-yao;WANG Shuai(Tianjin Fire Research Institute of MPS, Tianjin 300381,China)

机构地区：[1]公安部天津消防研究所,天津300382

出　　处：《消防科学与技术》2018年第2期232-234,254,共4页Fire Science and Technology

摘　　要：分析了干粉灭火剂主要原料磷酸铵盐和硫酸铵盐对干粉灭火剂吸湿性能的影响。分析了吸湿率检测过程中吸湿时间、相对湿度、样品基态对吸湿率检测结果的影响。结果表明,对磷酸二氢铵含量为92%的干粉灭火剂,吸湿率随环境相对湿度增加而增加;随吸湿时间增加,吸湿率的变化经历了初始快速近线性增加至缓慢增加到达最终平衡吸湿阶段;调整基态可以消除环境湿度对样品吸湿率的影响。The effects of ammonium phosphate and ammonium sulfate on the moisture absorption properties of dry powder fire extinguishing agent were analyzed.The influence of moisture absorption time,relative humidity and base state on the detection results of moisture absorption rate during the detection of moisture absorption rate was analyzed.The results show that as for dry powder fire extinguishing agent containing92%Ammonium Dihydric Phosphate moisture absorption rate increases with the increase of relative humidity;when the hydration time increases,changes of moisture absorption rate has experienced a initial rapid linear increase to slowly increase to the final equilibrium moisture stage;adjusting the ground state can eliminate the influence of environmental humidity on the moisture absorption rate of the samples.

关 键 词：干粉灭火剂 吸湿率 影响因素 相对湿度 吸湿时间 

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]