井下防爆胶轮车运行对矿井通风阻力影响的定量分析  

Quantitative Analysis on Effect of Running Process of Explosion-proof Rubber-tyred Car on Resistance of Mine Ventilation System

作　　者：张宏杰 刘彦青[2,3] 姚鹏飞 李伟[2,3] 桑聪[2,3] 

机构地区：[1]山西天地王坡煤业有限公司,山西晋城048000 [2]煤炭科学技术研究院有限公司安全分院,北京100013 [3]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《煤矿安全》2017年第7期184-187,共4页Safety in Coal Mines

摘　　要：为了揭示井下车辆运行对矿井通风总阻力的波动影响程度,采用数值模拟计算与现场实测相结合的研究方法,以山西天地王坡煤矿井下辅助运输大巷内防爆胶轮车行驶过程为现场原型,利用UDF自定义接口函数结合动网格技术建立了防爆胶轮车行驶过程巷道风流场计算模型,以车辆行驶速度和巷道全压通风风速为变量因素,定量分析了行驶车辆引起的巷道阻力变化值,行驶车辆引起的巷道阻力波动值甚至达到矿井通风总阻力的10%以上,在此基础上推导出适用于王坡煤矿井下辅助运输大巷的防爆胶轮车运行巷道百米阻力计算公式,将计算结果与现场实测结果进行对比,计算结果相对误差在20%以内。In order to reveal the fluctuation influence of underground vehicles running on the total mine ventilation resistance,using the research method of numerical simulation and field measurement, taking mine auxiliary transportation roadway in Shanxi Tiandi Wangpo Coal Mine with running of explosion-proof rubber-tyred car as prototype, using UDF custom interface function with dynamic grid technology to establish flow field calculation model of roadway for running process of explosion-proof rubber-tyred car, taking speed of explosion-proof rubber-tyred car and total pressure ventilation wind speed in roadway as variable factors, we quantitatively analyze tunnel resistance change value caused by running vehicle, the fluctuation value caused by running vehicle even reached 10% of total mine ventilation resistance. The calculation formula of ventilation resistance of roadway with running process of explosion-proof rubber-tyred car is deduced for auxiliary transportation roadway in Shanxi Tiandi Wangpo Coal Mine. Comparing to the calculation results, the measured results showed that the relative error of the calculated results was less than 20%.

关 键 词：百米巷道静压差 动网格技术 防爆胶轮车速度 巷道全压通风风速 矿井通风阻力 

分 类 号：TD722[矿业工程—矿井通风与安全]