摘要
基于多相流及矿井通风理论,利用相似性实验方法,搭建了煤矿掘进巷道模型,并通过模型实验获得了掘进巷道内风流流场和瓦斯浓度分布场的特征信息。结合上述两方面的特征信息重点分析了巷道内瓦斯运移多相流场的流动特性,所采用方法对于矿井通风系统及瓦斯监测系统的设计具有较强指导意义。实验结果表明掘进巷道内瓦斯运移的实质是瓦斯组分在矿内混合风流流动中的质量传递过程。
Based on theories of muhiphase fluid mechanics and mine ventilation theories, the model of drivage tunnel was established by using the method of similar experiment, the characteristics of ventilating current and gas concentration distribution in drivage tunnel were studied by the experiment, and based on the above characteristics the flow characteristics of gas transportation multiphase flow field were majorly analyzed. The study methods in the article have strong directive significance for the design of mine ventilation system and gas monitoring system. The experiment results indicate： The gas transportation essential in the drivage tunnel is the quality transmission process of gas in the mixed air flow.
出处
《煤矿安全》
CAS
北大核心
2010年第2期5-9,共5页
Safety in Coal Mines
基金
中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(07KF01)
关键词
掘进巷道
多相流动
瓦斯浓度
相似实验
drivage tunnel
multiphase flow
gas concentration
similar experiment
