杨伟,杨琳琳,安静,张树光
YANG Wei1,YANG Linlin1,AN Jing2,ZHANG Shuguang3(1.College of Architecture Engineering

• 1:辽宁工程技术大学建筑工程学院
• 2:辽河石油装备制造总公司综合办公室
• 3:辽宁工程技术大学土木与交通学院

摘要(Abstract)：

以高温矿井综采工作区为研究对象,对采空回填区、煤体—空气换热系统进行了二维数值模拟。计算结果表明,在空气初始温度为295.95 K,煤体、采空回填材料初始温度为313.15 K情况下,顺槽、工作面空气温度低于304.52 K,顺槽、工作面内空气与煤体、采空回填材料温差最小值为0.5 K。煤体、采空回填区的温度由初始值313.15 K降至299～314 K。进风顺槽、工作面、回风顺槽内的空气经过对流换热后的热量值在76.17～83.10 kJ/kg。在不考虑冲淡、排除顺槽、工作面有毒有害气体和粉尘,仅从降低顺槽、工作面内温度情况下考虑,采用雷诺数为13 808～276 170均能满足要求。以较小的动力损耗方面考虑采用雷诺数为69 040值以下为宜。从获得排除高温气体情况下考虑,采用雷诺数为69 040以上的条件。以上结论为矿井热害的综合治理提供了重要依据。
The paper,taking integrated mining area in high temperature mine as the research object,used two-dimensional numerical simulation for air heat exchange system in filling area and coal.The calculation results show that when the initial temperature for air is 295.95 K and the initial temperature for coal and backfill materials is 313.15 K,the air temperature in the gateway and working face is bellow 304.52 K,the minimum difference of temperature of air,coal and backfill materials in gateway and working face is 0.5 K.The temperature of coal and backfill materials drops from the initial 313.15 K to 299～314 K.The caloric value of the air in gateway,working face and air return entry ranges from 76.17 to 83.10 kJ/kg after heat convection.When dilution and elimination of toxic or harmful gases and dust in working face are mot considered,only decrease of temperature in crossheading and working face is taken into account,Re of 13 808 to 276 170 can meet requirements.Re below 69 040 is appropriate in consideration of small power loss.Considering acquiring and eliminating high temperature gas,Re above 69040 can be used.This conclusion provides an important basis for the comprehensive control of mine heat hazard.

关键词(KeyWords)： 高温矿井综采工作区;耦合传热;数值模拟;变化规律;数据结论
integrated mining area of high temperature mine;coupled heat transfer;numerical simulation;regularities of variation;conclusion of the data

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50804021)

作者(Author): 杨伟,杨琳琳,安静,张树光
YANG Wei1,YANG Linlin1,AN Jing2,ZHANG Shuguang3(1.College of Architecture Engineering

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