| 引用本文: | 吕伟新,刘宝,王磊.煤矿爆炸后巷道内温度变化规律[J].哈尔滨工业大学学报,2013,45(5):108.DOI:10.11918/j.issn.0367-6234.2013.05.020 |
| L Weixin,LIU Bao,WANG Lei
.Research on temperature changing law after coalmine explosion in roadway[J].Journal of Harbin Institute of Technology,2013,45(5):108.DOI:10.11918/j.issn.0367-6234.2013.05.020 |
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| 摘要: |
| 为了研究煤矿爆炸后巷道内温度的变化,建立煤矿巷道爆炸后的简化数学物理模型. 以热力学方程为基础,分析对流系数、密度对温度变化过程的影响,通过迭代计算得到了巷道降温曲线;为了避免因简化对流换热模型引入过大误差,又采用Fluent软件进行非稳态气固耦合换热分析,得到巷道内温度变化的过程信息．两种方法得到的结果相吻合,分析了爆炸后巷道内温度的变化规律,结果表明:爆炸后巷道内的高温不会持续很长时间,可为优化矿用救生舱以及避难硐室的设计参数提供参考． |
| 关键词: 煤矿爆炸 矿用救生舱 避难硐室 温度场计算 气固耦合换热 |
| DOI：10.11918/j.issn.0367-6234.2013.05.020 |
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| Research on temperature changing law after coalmine explosion in roadway |
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L Weixin, LIU Bao, WANG Lei
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(Harbin Institute of Technology, State Key Laboratory of Robotics and System, 150001 Harbin, China)
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| Abstract: |
| To study the temperature changing process inside roadway after coalmine explosion, this paper built a simplified mathematical physical model of roadway after coalmine explosion, analyzed the effect of convection coefficient and density on the basis of thermodynamic equation, and got the curve of air temperature changing. To avoid generating excessive error because of simplifying the convection heat transfer model, the unsteady gas-solid coupling heat transfer was analyzed with Fluent to obtain the process information of temperature changing in roadway. The two curves match each other highly. The results show that the period of high temperature inside roadway after explosion won’t last long, which provides reference for the parameter design of mine refuge chamber and rescue capsule. |
| Key words: coalmine explosion mine refuge chamber rescue capsule temperature field-computation gas-solid coupling heat transfer
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