将吸附剂和隔爆材料分别填充于爆炸容器中进行瓦斯防爆实验研究.结果表明:常压条件下,CH4在O2中的爆炸极限为8.5％ ～62.5％,爆炸压力最大时的CH4体积分数为36％,略高于理论值(33.3％).单球容器中填充吸附剂具有很好的抑爆性能,即使遇到点火源也能抑制爆炸的发生 ;连通容器中,吸附剂能很好地阻止爆炸的传播 ;随着压力的增大,吸附剂抑爆效果变差,但当压力超过一定值时,随着压力的增大,其抑爆效果变好.隔爆材料由于其具有良好的导热性,无论是在空气、O2环境中,还是在加压条件下都能很好地阻止爆炸的传播 ;压力上升速率越高,其隔爆效果越好.%Experimental investigation on explosion-proof was carried out by adding adsorbent and explosion-proof material into explosion vessel. The results showed that the explosion limit of methane in oxygen was 8. 5%-62. 5% under atmospheric pressure. The maximum explosion pressure was obtained when the concentration of methane was 36% , it was slightly higher than the theoretical value(33. 3% ) . It could prevent the explosion even ignition source appeared when the adsorbent was filled into a single vessel. Adsorbent could also prevent the transmission of explosion when filled in linked vessels. With the increase of the pressure, the effect of explosion-proof became worse. But when the pressure was over a certain value, with the increase of the pressure, the effect would be better. Because of good thermal conductivity, explosion-proof material could prevent the transmission of explosion whether in the air and oxygen or under pressured conditions. The higher the rate of pressure, the better the explosion-proof effect.
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