Experimental research on the characteristic of impact caused by a blast of inflammable mixture to a rigid wall

In order to explore the shock load formed at petrochemical engineering facilities and buildings by the explosion of an inflammable mixture, this text studies the experiment of a blast wave induced by the reaction of acetylene/air mixtures propagating along a pipe through inflammable-mixture detonation experimental facilities, impacting the anti-detonation container rigid wall. Histories of overpressure and vibration acceleration on different survey points were measured and analyzed to study the laws of the blastshock load and structure vibration responses of inflammable mixture explosions. The experimental results show that the main influential factor is the volumetric concentration of acetylene. The overpressure peak value in the normal reflection region of an anti-detonation container reached as high as 1.4 MPa, and it was always greater than the other oblique reflection regions. Besides this, detonation facilities and anti-detonation containers also experienced intensive vibration under an explosive shock wave. The maximum vibration acceleration of a container reached 1684 m/s².