复合推进剂粉尘最小点火能的实验研究

Experimental Study on the Minimum Ignition Energy of Composite Solid Propellant Dust

为研究复合推进剂在高压水射流冲击作用下的点火机理,采用哈特曼管粉尘爆炸设备,测试了典型复合推进剂粉尘的最小点火能,分析了成分、温度、湿度对最小点火能的影响.实验结果表明,湿度增加,粉尘体系最小点火能升高;温度增加,粉尘体系最小点火能降低;二茂铁含量对粉尘体系的最小点火能影响最为明显.

To investigate the ignition mechanism of composite solid propellant under high pressure waterjet from a perspective of dust explosion, Hartman bomb experimental system was used to test the minimum ignition energy of typical composite solid propellant dust. The effects of component, temperature and humidity on the minimum ignition energy were analyzed. The results show that, the minimum ignition energy of the dust system rises with the increase of humidity; the minimum ignition energy decreases with the temperature rising. The effect of Ferrocene content on minimum ignition energy is the most significant.