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夹河矿HEMS深井降温系统热能交换分析

Heat Exchange Analysis of HEMS Cooling System in Jiahe Deep Mine

【作者】 齐平

【导师】 何满潮;

【作者基本信息】 中国矿业大学(北京) , 岩土工程, 2011, 博士

【摘要】 现阶段深井热害日益严重,深井降温就变得要来越重要。在研究国内外降温技术的基础上,何满潮教授提出了HEMS降温系统,并成功应用于徐州矿务集团火河煤矿。本文基于以上研究平台,分析了火河矿HEMS降温逆卡诺循环工作原理,分析了HEMS降温系统关键设备的工作原理及其系统关键参数。在以上研究基础上,阐述了夹河HEMS降温系统设计过程。工程实施后,我们实时监测了系统运行数据并进行热交过程中的冷量损失分析,得出管路损失是降低冷量损失的关键因素。另外,对冰制冷系统进行了能耗分析,对比得出HEMS系统低能耗的特点。降温的关键是要使工作而的温度控制在允许的范范内,因此需要对降温效果进行分析。首先分析了巷道围岩与空气的换热原理,在此基础上采用FLUENT进行数值模拟。最后模拟结果与现场监测数据进行对比,验证了数值模拟的正确性,为今后的HEMS设计计算及风温预测提供了依据。

【Abstract】 At present, the deep mine cooling is becoming more and more important because of more seriously heat hazard day by day. Based on the research of all cooling technologies in both China and abroad professor He Manchao proposed the HEMS cooling technology, and it is applied in Jiahe coal mine successfully. Based on this research platform, I analyzed the reverse Carnot cycle of Jiahe HEMS cooling system, the working principle of key equipments and the key parameters of HEMS are also analyzed. Based on the research above, the paper elaborates the design process of Jiahe HEMS deep mine cooling system. After the project is constructed, we monitored the running parameters and analyzed cold energy loss during the heat exchange, and we get the results that the heat preservation of pipe line is the key to reduce cold energy loss. At the same time, I analyzed the energy loss of ice cooling system, through the comparison of the two technology, we know that the HEMS is the low energy loss system. The key for the cooling system is to decrease the working face temperature, so we should analyze the cooling effect. First, I analyzed the heat and humidity exchange in the roadway, then FLUENT is adopted to simulate the heat exchange process in HEMS-II and in roadway, then we get simulation results. Compared with the real time monitoring data, the correctness of the simulation results is verified, which offered basis for future design and air temperature prediction.

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