惰性气体对奥克托今粉尘云爆炸特性的影响

为了研究惰性气体对奥克托今(HMX)粉尘云爆炸特性的影响,采用改进20L球爆炸测试装置,分别对浓度为300 g/m³HMX粉尘云在空气中以及N2、CO2氛围中的最大爆炸压力及最大压力上升速率进行测定。通过定量分析惰性气体N2、CO2对HMX粉尘云爆炸特性的影响规律,探讨其抑爆机理。结果表明：HMX粉尘云在N2和CO2氛围中的最大爆炸压力较空气中分别下降了42.74%、59.86%,最大压力上升速率分别下降了48.06%、59.99%。说明N2和CO2对HMX粉尘云爆炸特性参数有显著的抑制作用,且CO2的抑爆效果优于N2。

Influence of Inert Gas on Explosion Characteristics of HMX Dust Cloud

In order to study the effect of inert gas on the explosion characteristics of Oktogen (HMX) dust cloud, an improved 20L ball explosion test device was used to measure the maximum explosion pressure and the maximum pressure rise rate of 300 g/m3 HMX dust cloud in air, N2 and CO2 atmosphere, respectively. Through quantitative analysis of the effect of inert gases N2 and CO2 on the explosion characteristics of HMX dust cloud, the explosion suppression mechanism of HMX dust cloud was discussed. The results show that the maximum explosion pressure of the HMX dust cloud in N2 and CO2 atmospheres has decreased by 42.74% and 59.86%, respectively, and the maximum pressure rise rate has decreased by 48.06% and 59.99%, respectively. It shows that N2 and CO2 have a significant inhibitory effect on the HMX dust cloud explosion characteristic parameters, and the explosion suppression effect of CO2 is better than that of N2.