细水雾与纵向通风对倾斜巷道火灾烟气运动规律影响研究
Research on influence of water mist and longitudinal ventilation on smoke movement in inclined roadway fire
闫帅 1王刚 2洪林 1高大猛 1郭佳策2
作者信息
- 1. 辽宁工程技术大学 安全科学与工程学院,辽宁 葫芦岛 125105
- 2. 中煤科工集团沈阳研究院有限公司,辽宁 抚顺 113122
- 折叠
摘要
为了解决倾斜巷道火灾期间高温毒害烟气严重威胁井下人员避灾和救援等问题,采用Fluent数值模拟和 1 ∶ 20 缩尺火灾实验的方法,对不同巷道坡度下的烟气运动和温度变化进行研究.研究结果表明:添加细水雾和纵向通风都会降低倾斜巷道火灾温度.对于细水雾,下游顶板温度随着巷道坡度的增大而减小;对于纵向通风,控烟降温效果随巷道坡度的增大而降低.研究结果可为倾斜巷道防排烟设计以及对火灾下风侧烟气蔓延控制和救援提供参考.
Abstract
In order to solve the problem that the high temperature and toxic smoke during the fire of inclined roadway serious-ly threatens the disaster avoidance and rescue of underground personnel,the Fluent numerical simulation and 1 ∶ 20 scaled fire experiments were used to study the smoke movement and temperature change under different roadway slopes.The results show that adding water mist and longitudinal ventilation can both reduce the fire temperature in inclined roadway.For the wa-ter mist,the downstream roof temperature decreases with the increase of roadway slope.For the longitudinal ventilation,the smoke control and cooling effect decreases with the increase of roadway slope.The research results can provide reference for the smoke control design of inclined roadways,as well as for the control and rescue of smoke spread on the windward side dur-ing fires.
关键词
矿井火灾/倾斜巷道/细水雾/Fluent数值模拟/纵向通风Key words
mine fire/inclined roadway/water mist/Fluent numerical simulation/longitudinal ventilation引用本文复制引用
基金项目
辽宁省教育厅自然科学基金(LJKQZ20222334)
出版年
2024
NETL
NSTL
万方数据