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实验探讨了瓦斯爆炸过程中火焰厚度变化特性及障碍物、膜片位置和压力等的影响．结果表明，障碍物和膜片对瓦斯爆炸过程中火焰厚度具有重要影响．当有障碍物存在时，瓦斯爆炸过程中产生的火焰厚度常常会小于无障碍物存在时所产生的火焰厚度；膜片距离爆炸源较近时，火焰厚度明显增大．火焰厚度越大，在其传播过程中对传播途径上的可燃物的点燃作用越大．研究结果对指导现场防治瓦斯爆炸、减轻瓦斯爆炸灾害具有一定的指导意义．
The influence of the change of flame thickness and the obstructions of the flame, the position and the pressure of the diaphragm during gas explosion was discussed experimentally. The results show that obstacles and diaphragms have an important influence on the flame thickness during gas explosion. When there is an obstacle, the thickness of the flame produced during the gas explosion is usually smaller than the thickness of the flame generated when no obstacle exists. When the diaphragm is close to the explosion source, the thickness of the flame is obviously increased. The greater the thickness of the flame, the greater the ignition of combustibles on the route of propagation during its propagation. The results of the study can guide the on-site prevention and control of gas explosion and reduce the gas explosion disaster.