主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (5): 601-603.

• • 上一篇    下一篇

惰性介质对铝粉抑爆效果的试验研究

关文玲，杨天灿，董呈杰，赵健章   

  1. 天津理工大学 环境科学与安全工程学院，天津300384
  • 出版日期:2020-05-15 发布日期:2020-05-15
  • 作者简介:关文玲（1978-），女，陕西渭南人，天津理工大学环境科学与安全工程学院副教授，博士，主要研究方向为工业过程安全，天津市天津理工大学主校区17号教学楼209室，300384。

Experimental study on the inhibitory effect of inert medium on aluminum powder

GUAN Wen-ling, YANG Tian-can, DONG Cheng-jie, ZHAO Jian-zhang   

  1. College of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
  • Online:2020-05-15 Published:2020-05-15

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。

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

Abstract: he 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.

Key words: fire, aluminum powder explosion, 20 L explosion test system, composite inert medium, explosion suppression, synergistic effect