摘要
根据物质守恒定律,推导出避难硐室内有害气体浓度计算表达式,确立了避难硐室内净化需风量与有害气体控制浓度及室内避灾人数的数学关系。利用Fluent软件分析了51型避难硐室内净化装置3种不同工况下,室内的空气流速分布和CO2气体浓度分布,得出2台净化装置可将室内CO2体积分数控制在0.50%以下,满足避难硐室空气净化要求。
In this PaPer,a calculation exPression for the harmful gas concentration in the refuge chamber was deduced according to the law of conservation of matter,and the mathematical relationshiP of the required air quantity for Purification in the refuge chamber with the control of the harmful gas concentration and number of the Persons stayed in the chamber was established. With Fluent software,analysis was made on the distribution of the air flow rate and CO2 concentration in the refuge chamber under three different oPeration conditions of 51-tyPe chamber Purification device. It came to a conclusion that using two air Purification devices could control CO2 volume fraction below 0. 50% and meet the air Purification requirement in the refuge chamber.
出处
《矿业安全与环保》
北大核心
2014年第6期29-32,共4页
Mining Safety & Environmental Protection
基金
"十二五"国家科技支撑计划课题(2012BAK04B09)
中煤科工集团重庆研究院青年基金项目(2013QNJJ09)
关键词
煤矿避难硐室
净化装置
数值模拟
空气流场
二氧化碳浓度
coal mine refuge chamber
Purification device
numerical simulation
air flow field
carbon dioxide concentration
