摘要
为确定井下避难硐室合理供风量,采用RNGκ-ε模型和SIMPLE算法,对某100人避难硐室压风供氧状态下,不同供风量、散流器布置方案、空载和载人时生存区的污染物净化时间、通风效率、污染物(CO,CO2)浓度场分布和人体热舒适性等进行了数值模拟分析,并与现场实测结果进行了对比。模拟结果表明,若硐室内CO体积分数偏高,供风量应不低于0.1 m3/(min·人),并配合使用净化药剂尽快去除;常规避难状态下,供风量减小至600 m3/h,配合局部通风措施,即可满足人员避险和热舒适性基本要求。
In order to confirm reasonable air supply volume for refuge station in underground mine, the contaminant purification time, contaminant distribution（ including CO and CO2 ） ,ventilation efficiency, and human thermal comfort of unmanned/manned experiments under different ventilation conditions were numerical simulated through RNG κ-ε model and SIMPLE method. The calculating results were compared with experimental ones then, and basically matched. The simulation results indicate that the forced air should supply no less than 0.1 m3/min per person in the scenario of high CO concentration inside the living section, and purification agent are recommended for use to acceler- ate purification process ; when in normal refuge state, the basic request for both health and thermal comfort can be satis- fied by supplying forced air at a lower rate of 600 m3/h, with local ventilation.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2014年第7期1321-1326,共6页
Journal of China Coal Society
基金
"十二五"国家科技支撑计划资助项目(2012BAK09B07)
关键词
压风供氧系统
避难硐室
污染物分布特性
人体舒适性
forced air supply system
refuge station
contaminant distribution
human thermal comfort
