基于PyroSim的压入式通风巷道火灾模拟  

Numerical simulation of fire in pressed ventilation tunnel based on PyroSim

作　　者：崔心源 吴兵[1] 金莎 CUI Xin-yuan;WU Bing;JIN Sha(School of Emergency Management and Safety Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)应急管理与安全工程学院,北京100083

出　　处：《消防科学与技术》2020年第7期923-926,共4页Fire Science and Technology

基　　金：国家重点研发计划资助项目(2018YFC0808100)。

摘　　要：基于2019年山东“11·19”火灾事故,利用PyroSim软件构建压入式掘进巷道内的火灾模型,实现了总长400 m、火源位于200 m处的掘进巷道内,风筒烧断与未烧断两种情况、不同火源功率下的火灾模拟。结果表明:在压入式巷道中发生火灾,一旦风筒烧断,火灾发展将更加迅速;一定条件下巷道中火场内被困区温度、烟气遮光率随时间推移和风流作用会迅速增大;火源功率越大,被困区受到危险的时间越短。Based on the“11·19”fire accident in Shandong in 2019,using PyroSim software,a fire simulation of a pressed driving tunnel with a total length of 400 m and a fire source located at 200 m was performed for both the blown and unblown ducts in the tunnel and different fire source powers.The results showed that:if a fire occurs in a press-in tunnel,the fire will develop more quickly once the wind tunnel is blown out;under certain conditions,the temperature,smoke shading rate of the trapped area in the fire field in the tunnel will increase rapidly with time and wind effect;the greater the power of the fire source,the shorter the time the trapped area is at risk.

关 键 词：矿井火灾 PyroSim 数值模拟 压入式通风 

分 类 号：X936[环境科学与工程—安全科学] TD263[矿业工程—矿井建设]