Vent burst doors as an effective method of suppressing the dangers of gas explosions
This paper investigated the effectiveness of a vent burst door in isolating the shock waves of gas explosions in coal mines and to reveal the mechanisms of gas explosion overpressure. A 17.5 m × φ 0.63 m columnar explosion test duct with a similar shape to the roadways in coal mines was designed. Ex...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2021-03-01
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Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/5.0033835 |
Summary: | This paper investigated the effectiveness of a vent burst door in isolating the shock waves of gas explosions in coal mines and to reveal the mechanisms of gas explosion overpressure. A 17.5 m × φ 0.63 m columnar explosion test duct with a similar shape to the roadways in coal mines was designed. Explosion overpressure propagation characteristics and the effects of methane concentration at different locations along the duct with and without a vent burst door were experimentally investigated. The results demonstrate that the vent burst door plays a significant role in sealing the explosion area and isolating the explosion propagation. A properly designed vent burst door is a promising technique for suppressing and isolating multiple and continuous gas explosions and is poised to have a significant positive impact on improving the safety of coal mines in China and all over the world. |
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ISSN: | 2158-3226 |