Experiment Study on Obstacle Shape in Pipeline Affected to Gas Explosion
Abstract：In order to prevent and reduce the damages caused by mine gas explosions, the self made horizontal pipeline type flammable gas-dust explosion device was applied to simulate the mine roadway. Under the normal atmospheric temperature and constant pressure, there were four different shape obstacles applied to study the variation laws of the gas explosion pressure and flame spreading velocity. The results showed that the obstacle existed wound have obvious influences to the gas explosion, would increase the explosion pressure and flame spreading velocity and would change the variation law of the explosion pressure. The obstacle shape could have the different degree influence to the gas explosion. The dam board obstacle could make the highest explosion pressure and flame spreading velocity. The four bore ring would have a min influence.
Keywords：gas explosionobstacle shapeexplosion pressureflame spreading speed
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)