中北大学学报（自然科学版）2025，Vol.46Issue(6)：784-792,9.DOI:10.62756/jnuc.issn.1673-3193.2025.03.0008
水雾抑制甲烷爆炸的数值模拟
Numerical Simulation on Water Mist Suppression of Methane Explosion
摘要
Abstract
Methane(CH4)is one of the primary components of natural gas,with flammable and explosive properties.CH4 explosions will lead to severe consequences,therefore,effective explosion suppression techniques are essential to mitigate its associated hazards.The CH4-air mixture with CH4 volume fraction of 10%was selected to investigate,the effects of different water mist particle size,initial injection veloc-ity,and injection time on the suppression of CH4-air mixture explosion were investigated using a fluid dynamics software.The results indicate that when the particle size range is 10～150 μm,the water mist with a particle size of 70 μm has the best suppression effect on CH4-air mixture explosion.The explosion pressure of CH4-air mixture can be reduced to 0.220 MPa,and the pressure rise rate can be reduced to 0.86 MPa/s.The explosion temperature of CH4-air mixture can be reduced to below 500 K within 191 ms.In addition,as the initial velocity of water mist increases and the injection time advances,the suppression effect of water mist on CH4-air mixture explosion is enhanced.关键词
甲烷/气体爆炸/抑爆/燃爆/水雾Key words
methane/gas explosion/explosion suppression/deflagration/water mist分类
资源环境引用本文复制引用
王慧男,刘逸夫,张添淇,杨子诺,袁治雷,梁凯丽,刘洋,胡立双..水雾抑制甲烷爆炸的数值模拟[J].中北大学学报（自然科学版）,2025,46(6):784-792,9.基金项目
山西省高等学校科技创新项目(2019L0517) （2019L0517）
山西省基础研究计划资助项目(202203021212160) （202203021212160）
