摘要
基于siwek-20 L爆炸测试系统,在试验分析碳酸钙、碳酸氢钠和磷酸二氢铵这3种惰性介质的惰化性能的基础上,进一步研究其介质之间的协同增效效应。结果表明:对于浓度为300 g/m3的铝粉,惰性介质能使铝粉爆炸受到明显的抑制,且随着惰性介质含量的增加,铝粉爆炸强度不断下降;NH4H2PO4的抑制效果优于CaCO3,CaCO3优于NaHCO3;添加CaCO3与NH4H2PO4配比的复合惰性介质和NaHCO3与NH4H2PO4配比的复合惰性介质时,铝粉爆炸受到进一步的抑制,体现出惰性介质之间的协同增效效应,其中CaCO3与NH4H2PO4按照1∶1配比的复合惰性介质抑爆性能最佳。
The inert effect and of three inert media(calcium carbonate,sodium bicarbonate and ammonium dihydrogen phosphate)and the synergistic inhibition effect between them were analyzed by 20 L-Siwek explosion test system.The results show the explosion character of aluminum powder whose concentration is 300 g/m3 is obviously inhibited after adding different inert substances,and the explosive intensity decreases with the addition of inert inhibitor;NH4H2PO4 is the best of the three inert media,followed by CaCO3.Co-inhibitory experiments indicate that the inhibition effect of composite medium is better than that of single medium.The compound inhibitor has the best anti-explosion performance when the ratio of CaCO3 and NH4H2PO4 is 1:1.
作者
关文玲
杨天灿
董呈杰
赵健章
GUAN Wen-ling;YANG Tian-can;DONG Cheng-jie;ZHAO Jian-zhang(College of Environmental Science and Safety Engineering,Tianjin University of Technology,Tianjin 300384,China)
出处
《消防科学与技术》
CAS
北大核心
2020年第5期601-603,623,共4页
Fire Science and Technology
关键词
火灾
铝粉爆炸
20
L爆炸测试系统
复合惰性介质
抑爆
协同增效
fire
aluminum powder explosion
20 L explosion test system
composite inert medium
explosion suppression
synergistic effect
