矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2014年
6期
29-32
,共4页
煤矿避难硐室%净化装置%数值模拟%空气流场%二氧化碳浓度
煤礦避難硐室%淨化裝置%數值模擬%空氣流場%二氧化碳濃度
매광피난동실%정화장치%수치모의%공기류장%이양화탄농도
coal mine refuge chamber%Purification device%numerical simulation%air flow field%carbon dioxide concentration
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。
根據物質守恆定律，推導齣避難硐室內有害氣體濃度計算錶達式，確立瞭避難硐室內淨化需風量與有害氣體控製濃度及室內避災人數的數學關繫。利用Fluent軟件分析瞭51型避難硐室內淨化裝置3種不同工況下，室內的空氣流速分佈和CO2氣體濃度分佈，得齣2檯淨化裝置可將室內CO2體積分數控製在0.50％以下，滿足避難硐室空氣淨化要求。
근거물질수항정률，추도출피난동실내유해기체농도계산표체식，학립료피난동실내정화수풍량여유해기체공제농도급실내피재인수적수학관계。이용Fluent연건분석료51형피난동실내정화장치3충불동공황하，실내적공기류속분포화CO2기체농도분포，득출2태정화장치가장실내CO2체적분수공제재0.50％이하，만족피난동실공기정화요구。
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.
