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Research and application of methods for effectiveness evaluation of mine cooling system

查看全文 作　　者：Guo [1,2]Pingye;Wang [3]Yanwei;Duan [1,2]Mengmeng;Pang [1,2]Dongyang;Li [1,2]Nan 高影响力作者 机构地区：[1]State Key Laboratory of Geomechanics and Deep Underground Engineering;[2]School of Mechanics and Civil Engineering, China University of Mining and Technology;[3]China Institute of Water Resources and Hydropower Research高影响力机构 出　　处：《International Journal of Mining Science and Technology》索引2015年第25卷第4期,共6页高影响力期刊 基　　金：supported by the key project of National Natural Science Foundation ‘‘Deep Heat Governance and Utilization’’ (Nos.51134005 and 41402273);the Doctoral Fund of Ministry of Education (No. 20130023110021) 摘　　要：Regarding the complexity and inconsistency of results in existing evaluation methods of mine cooling system, this paper clarifies the advantages, disadvantages and application of various mine cooling systems through principle analysis, and divides all the cooling systems into air-cooling, ice-cooling and water-cooling according to the transportation of cold energy. On this basis, the paper proposes a simple and efficient evaluation method for mine cooling system. The first index of this method is the air temperature at point C which is 15 m away from the return wind corner at working face. A cooling system will be judged ineligible if the air temperature at point C is above 30 °C during operation, because in this case, the combustible gases in coal will sharply overflow, inducing gas incidents. Based on the preliminary judgment of the first index, another two evaluation indexes are proposed based on the cooling ability and dehumidification of an airflow volume of 1000 m3/min at point C to evaluate the investment and operation cost of mine cooling system. This evaluation method has already been successfully applied in the cooling system design of Zhangshuanglou coal mine. 关 键 词：降温系统 效能评估方法 矿井 应用 评价方法 冷却系统 空气温度 空气冷却
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