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用自行设计的三面透明的细水雾抑制甲烷爆炸的实验装置,研究了不同体积超细水雾对不同浓度甲烷爆炸的抑制现象。运用GigaView高速摄影观察了超细水雾抑制甲烷爆炸的过程,并且对现象进行了分析。采用四个E12-1-K型快速响应热电偶获取超细水雾抑爆过程中四个不同位置的温度变化情况,并且讨论了甲烷浓度和超细水雾体积对爆炸延迟时间的影响。实验结果表明,超细水雾对甲烷爆炸的抑制效果是与水雾的体积和甲烷浓度紧密相关的。初步确定了超细水雾抑制甲烷爆炸的临界体积。
Experiments were conducted to test the methane explosion by using three-sided transparent water mist. The inhibition of different concentrations of ultra-fine water mist on methane explosion was studied. Using GigaView high-speed photography observed ultra-fine water fog suppression of methane explosion process, and the phenomenon was analyzed. Four E12-1-K rapid response thermocouples were used to obtain the temperature changes at four different locations in the process of decontamination of ultra-fine mist, and the effects of methane concentration and ultrafine mist volume on the detonation delay time were discussed. The experimental results show that the inhibitory effect of ultrafine water mist on methane explosion is closely related to the volume of mist and methane concentration. The critical volume of ultra-fine mist to suppress methane explosion was initially determined.