基于巷道风流分布规律的风量计算  

Calculation of air volume based on law of wind flow distribution in roadway

作　　者：李亚俊 李印洪 姚银佩 钟生元 吴洁葵 邓望跃 LI Yajun;LI Yinhong;YAO Yinpei;ZHONG Shengyuan;WU Jiekui;DENG Wangyue(Hunan Labour Protection Institute of Nonferrous Metals,Chagnsha 410014,China;Hunan Key Laboratory of Ventilation and Dust Control for Non-Coal Mines,Changsha 410014,China)

机构地区：[1]湖南有色冶金劳动保护研究院,长沙410014 [2]非煤矿山通风防尘湖南省重点实验室,长沙410014

出　　处：《有色金属（矿山部分）》2021年第2期124-127,共4页NONFERROUS METALS(Mining Section）

基　　金：“十三五”国家重点研发计划项目(2018YFC0808102)。

摘　　要：通过对模拟巷道风流分布规律进行研究,指出风流受巷道壁的黏滞作用,靠近巷道边壁处风流速度较小,越靠近巷道中心区域风速越大,而这种变化趋势在高、中、低风速条件下基本一致;同时研究以风速V(x)为目标函数值,以距巷道壁距离为变量x,对三种风速条件下试验数据进行曲线拟合分析,并得出相应的回归方程,依据此方程构造相应的积分方程计算出巷道的实际风量值,结果显示风量计算值与实际测定值之间存在约15%的误差,该误差在实际通风测定时应予以考虑。Through studying the distribution law of air flow in simulated roadways,it was proposed that the air flow was affected by the stickiness of the roadway wall,and the wind velocity near the roadway side wall was smaller,and the wind speed near the center of the roadway was larger.This trend was basically the same under the conditions of high,medium and low wind speeds.At the same time,wind speed V(x)was considered as objective function value and distance from roadway wall as variable x.The curve fitting analysis of the test data under three kinds of wind speed conditions was carried out,and the corresponding curve regression equation was obtained.Based on this equation,the corresponding integral equation was constructed to calculate the actual air volume of the tunnel accurately.The result indicated that there was about 15%error between the accurate air volume calculation value and the actual measured value.This error should be considered in actual ventilation measurement.

关 键 词：巷道 风流 分布 风量 计算 

分 类 号：TD72[矿业工程—矿井通风与安全]