Experimental study on suppression of gasoline-air mixture explosion in narrow-confined space using polymer mesh

doi:10.16265/j.cnki.issn1003-3033.2017.12.004

Abstract

Abstract: In order to study the suppression effect of nonmetallic porous materials on gasoline-air mixture explosion in mesoscale confined space, an experiment system of a Φ700 mm×3300 mm round tube was established. A new type of mesh polymer was used as the suppression medium, and explosion suppression experiments were carried out. The experimental results show that the polymer mesh can reduce the maximum overpressure value by 94% and the rate of boosting by 98%, that the polymer mesh, which is used as an explosion suppressor filling the tube according the requirements of the related standard, can effectively weaken the vibration and impact energy during the explosion due to the porous structure and excellent anti-compression performance, and that the polymer mesh can completely prevent the flame from propagating and result in quenching.

Key words: polymer mesh, mesoscale confined space, explosion, suppression, gasoline-air mixture, overpressure

CLC Number:

X932

JIANG Xinsheng, XIE Wei, YANG Wei, XU Jiannan, HE Biao. Experimental study on suppression of gasoline-air mixture explosion in narrow-confined space using polymer mesh[J]. China Safety Science Journal, 2017, 27(12): 20-25.

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