井下避难硐室压风供氧分布规律研究  

Distribution regularity study of air pressure supply to mine refuge chambers

作　　者：金龙哲[1] 王奕[1] 汪澍[1] 詹子娜[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《北京科技大学学报》2014年第8期1007-1012,共6页Journal of University of Science and Technology Beijing

基　　金："十二五"国家科技支撑计划资助项目(2012BAK09B00)

摘　　要：为实现避难硐室内良好生存环境,提高人员生存环境质量,并为今后避难硐室的设计提供指导性依据,基于数值模拟软件FLUENT仿真平台,以压风供氧方式下的避难硐室生存区为研究对象,对主要扰动源进行分析,建立两种压风供氧管路方案下的避难硐室三维模型.通过控制方程组、RNG k--ε湍流模型、有限容积离散方法和SIMPLE算法相结合的方式,实现避难硐室空气分布可视化.得出在压风供氧下,以九个布气孔弥散式均匀布气的管道布置及尺寸设计最优方案,以及硐室内氧气和二氧化碳体积分数的主要分布规律.通过现场载人试验验证了数值模拟的可靠性.To achieve good indoor living environment,improve the quality of staff living environment in refuge chambers and provide a basis guidance of design for the future,based on numerical simulation software FLUENT,the survival area under the way of air pressure supply was used as a research object,the main disturbance source was analyzed,and a three-dimensional model was set up with two kinds of air pressure supply pipelines. Air distribution in refuge chambers was visualized through the control equations,the RNG k--ε turbulence model and the finite volume discrete method in combination with SIMPLE algorithm. In the condition of air pressure supply,the layout of a uniform gas pipeline with nine air holes was determined as the optimal design scheme,and the volume fraction distribution regularities of oxygen and carbon dioxide were obtained. The feasibility of this numerical simulation was verified with field test.

关 键 词：避难硐室 供氧 空气分布 氧气浓度 数值模拟 

分 类 号：X913.4[环境科学与工程—安全科学]