寺河矿采煤工作面降温系统研究  

Research on Cooling System of Coal Mining Face in Sihe Mine

作　　者：田鹏 张飞 焦军 贾进章[4] 王枫潇 Tian Peng;Zhang Fei;Jiao Jun;Jia Jinzhang;Wang Fengxiao(Technology Center,Shanxi Jincheng Anthracite Coal Industry Group Co.,Ltd.,Jincheng 048006,China;Ventilation Safety Technical Service Branch,Shanxi Jinmei Group Technology Research Institute Co.,Ltd.,Jincheng 048006,China;Shanxi Jincheng Anthracite Coal Industry Group Co.,Ltd.,Jincheng 048006,China;Research Institute of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]山西晋城无烟煤矿业集团有限责任公司技术中心,山西晋城048006 [2]山西晋煤集团技术研究院有限责任公司通风安全技术服务分公司,山西晋城048006 [3]山西晋城无烟煤矿业集团有限责任公司,山西晋城048006 [4]辽宁工程技术大学安全科学与工程研究院,辽宁阜新123000

出　　处：《煤矿机械》2021年第10期50-54,共5页Coal Mine Machinery

基　　金：国家自然科学基金(51374121)。

摘　　要：为研究热害矿井采煤工作面的有效降温方法,采用数值模拟与现场测试相结合的方法,选用内含液态CO_(2)的盘管式换热器系统对寺河矿6301#采煤工作面的降温效果进行研究,利用COMSOL软件探究了不同液态CO_(2)流速、不同换热器管间距和不同换热器布置长度的降温效果,得到了对寺河矿6301#采煤工作面降温效果最佳的液态CO_(2)流速,分析得出了具有最佳降温效果且符合实际工况的换热器管间距及换热器布置长度。结果表明:液态CO_(2)流速为0.1 m/s、管间距为75 mm、换热器布置长度为30 m时,采煤工作面降温效果最佳。将模拟结果与实测结果对比,证明了该降温方法能够有效降低采煤工作面的温度。In order to study the effective cooling method of coal mining face in thermally damaged mine, using the method of combining numerical simulation and field test, the coil heat exchanger system containing liquid CO_(2) was selected to study the cooling effect of the 6301#coal mining face of Sihe coal mine, the COMSOL software was used to explore the cooling effect of different liquid CO_(2) flow rates, different heat exchanger tube spacings and different heat exchanger arrangement lengths, and the liquid CO_(2) flow rate which has the best cooling effect on the 6301#coal mining face of Sihe coal mine was obtained. The analysis obtains the distance between the heat exchanger tubes and the arrangement length of the heat exchanger that has the best cooling effect and is in line with the actual engineering. The results show that when the liquid CO_(2) flow rate is 0.1 m/s, the pipe spacing is 75 mm,and the heat exchanger arrangement length is 30 m, the coal mining face has the best cooling effect.Comparing the simulation results with the measured results, it is proved that the cooling method can effectively reduce the temperature of the coal mining face.

关 键 词：矿井热害 采煤工作面 井下热环境 液态CO2降温 换热器 

分 类 号：TD727[矿业工程—矿井通风与安全]