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为评价新型材料的阻火抑爆性能,采用抑爆性能测试装置,对比分析新型材料在不同填充密度、留空率下对最高爆炸压力的影响;对比最佳填充密度为35 kg/m~3的金属材料与填充密度为22.4 kg/m~3新型材料在不同留空率下的最高爆压,分析2种材料的抑爆性能;对比2种材料中的火焰传播过程,分析两者的阻火性能。结果表明:当填充密度为22.4 kg/m~3、留空率为5%时,新型材料抑爆性能最佳,最高爆炸压力仅为27 kPa;与空爆状态相比,填充新型材料后最高爆压明显下降;留空率为5%,填充密度为22.4 kg/m~3时新型材料的阻火抑爆性能均优于填充密度为35 kg/m~3的金属材料。降低留空率、增加填充密度能够有效改善新型材料的阻火抑爆性能。
In order to evaluate the fire and explosion suppression performance of new materials, the explosion suppression performance test equipment was used to compare and analyze the effect of new material on the maximum explosion pressure under different packing density and voidage. The best packing density was 35 kg / m 3 Of the metal material and the packing density of 22.4 kg / m ~ 3 new materials at different void rates of the highest explosion pressure, analysis of two materials explosion suppression performance; contrast of two kinds of materials in the flame propagation process, analysis of both the resistance Fire performance. The results show that when the filling density is 22.4 kg / m ~ 3 and the voidage rate is 5%, the new material has the best explosion suppression performance with the maximum explosion pressure being only 27 kPa. Compared with the air explosion state, The pressure drop of the new material is better than that of the metal material with the packing density of 35 kg / m ~ 3 when the void ratio is 5% and the filling density is 22.4 kg / m ~ 3. Reduce the empty rate, increase the packing density can effectively improve the fire-retardant materials explosion-proof performance.