矿井机电硐室火灾的FDS模拟与分析
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摘要
为了给井下人员在发生机电硐室火灾时的逃生提供参考和依据,采用火灾动态模拟软件PyroSim模拟了吕梁桃园鑫隆煤矿机电硐室火灾的发生,对巷道内气体的温度、毒性,烟雾浓度、可见度进行了分析研究。结果表明,该矿机电硐室火灾发生后火源处温度不断上升,在250 s后趋于稳定,到达约550℃;230 s时烟层高度下降至1.6 m,影响工作人员的视线;300 s后巷道内能见度降至1 m,井下人员的逃生难度加大;400 s后巷道内烟气温度达到80℃,严重影响人员逃生;巷道内CO浓度始终没有超过临界值,暂且认为对人没有影响。
In order to provide reference and basis for the escape of underground personnel in the event of electromechanical chamber fire, the fire dynamics simulation software PyroSim was used to simulate the electromechanical chamber fire occur in Xinlong Coal Mine. The gas temperature, toxicity, smoke concentration, visibility in the roadway are anlyzed. Simulation results showed that the temperature at the fire source kept rising after the electromechanical chamber fire, tended to stabilize after 250 s,reached about 550 ℃; the high-temperature smoke layer dropped to 1.6 m in 230 seconds which greatly influenced the sight of staffs. After 300 s, the visibility in the tunnel decreased to 1 meter, the escape of underground personnel became more difficult.After 400 s, the temperature of flue gas in the roadway reached to 80 ℃, which seriously affected the escape of people. The concentration of CO in the roadway did not exceed critical value, and it had no effect on people.
In order to provide reference and basis for the escape of underground personnel in the event of electromechanical chamber fire, the fire dynamics simulation software PyroSim was used to simulate the electromechanical chamber fire occur in Xinlong Coal Mine. The gas temperature, toxicity, smoke concentration, visibility in the roadway are anlyzed. Simulation results showed that the temperature at the fire source kept rising after the electromechanical chamber fire, tended to stabilize after 250 s,reached about 550 ℃; the high-temperature smoke layer dropped to 1.6 m in 230 seconds which greatly influenced the sight of staffs. After 300 s, the visibility in the tunnel decreased to 1 meter, the escape of underground personnel became more difficult.After 400 s, the temperature of flue gas in the roadway reached to 80 ℃, which seriously affected the escape of people. The concentration of CO in the roadway did not exceed critical value, and it had no effect on people.
引文
[1]吕玉芝,吴茂胜.基于外因火灾事故实例对矿井反风等避灾关键事项的研究分析[J].中国煤炭工业,2016(1):64-65.
[2]杨豪,王培植,万祥云.我国气体与粉尘爆炸事故现状及影响因素分析[J].安全与环境工程,2008,15(1):97-99.
[3]苏墨,王飞.矿井胶带火灾模拟与逃生影响因素分析研究[J].中国矿业,2017,26(7):168-172.
[4]季经纬,程远平.PVC输送带点燃温度判据及应用[J].燃烧科学与技术,2006,12(5):438-441.
[5]张圣柱,程卫民,张如明,等.矿井胶带巷火灾风流稳定性模拟与控制技术研究[J].煤炭学报,2011,36(5):812-817.
[6]王凯,蒋曙光,张卫青,等.矿井火灾应急救援系统的数值模拟及应用研究[J].煤炭学报,2012,37(5):857-862.
[7]周福宝,王德明.矿井火灾烟流滚退距离的数值模拟[J].中国矿业大学学报,2004,33(5):499-503.
[8]王德明,鲍庆国.矿井火灾计算机模拟研究[J].中国安全科学学报,1996(2):1-4.
[9]黄有波,吕淑然.建筑火灾仿真工程软件:PyroSim从入门到精通[M].北京:化学工业出版社,2017:2.
[10]游波.深井受限空间物理实验系统研发与安全人因参数实验研究[D].长沙:中南大学,2014:62-64.
[2]杨豪,王培植,万祥云.我国气体与粉尘爆炸事故现状及影响因素分析[J].安全与环境工程,2008,15(1):97-99.
[3]苏墨,王飞.矿井胶带火灾模拟与逃生影响因素分析研究[J].中国矿业,2017,26(7):168-172.
[4]季经纬,程远平.PVC输送带点燃温度判据及应用[J].燃烧科学与技术,2006,12(5):438-441.
[5]张圣柱,程卫民,张如明,等.矿井胶带巷火灾风流稳定性模拟与控制技术研究[J].煤炭学报,2011,36(5):812-817.
[6]王凯,蒋曙光,张卫青,等.矿井火灾应急救援系统的数值模拟及应用研究[J].煤炭学报,2012,37(5):857-862.
[7]周福宝,王德明.矿井火灾烟流滚退距离的数值模拟[J].中国矿业大学学报,2004,33(5):499-503.
[8]王德明,鲍庆国.矿井火灾计算机模拟研究[J].中国安全科学学报,1996(2):1-4.
[9]黄有波,吕淑然.建筑火灾仿真工程软件:PyroSim从入门到精通[M].北京:化学工业出版社,2017:2.
[10]游波.深井受限空间物理实验系统研发与安全人因参数实验研究[D].长沙:中南大学,2014:62-64.