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在实验的基础上,研究了瓦斯爆炸过程中激波的产生条件.研究结果表明,障碍物和薄膜的存在对瓦斯爆炸过程中激波的产生具有重要影响.当有障碍物存在时,瓦斯爆炸过程中火焰的传播速度将迅速提高,并可诱导激波的产生;同样,在瓦斯爆炸破膜过程中也将产生激波现象.因此,为了减轻瓦斯爆炸的破坏作用,应尽量减少矿井巷道中的障碍物并加固好风门与密闭墙,以防发生破膜现象,导致激波的产生.研究结果对指导现场如何防治瓦斯爆炸,减轻瓦斯爆炸的威力具有重要作用.
Based on the experiment, the conditions of shock wave generation in gas explosion are studied. The results show that the existence of obstacles and thin films have an important impact on the shock wave generation in gas explosion. When there is an obstacle, the flame propagation speed will rapidly increase during the gas explosion and induce the shock wave generation. Similarly, the shock wave will also be generated during the gas explosion rupture. Therefore, in order to reduce the destructive effects of gas explosions, obstacles in mine tunnels should be minimized and air dampers and airtight walls should be strengthened to prevent rupture of membrane and shock wave. The research results play an important role in directing how to control gas explosion on site and alleviating the power of gas explosion.