循环型空气幕送风角度对隔断巷道风流效果影响的分析

发布时间：2018-03-02 11:10

本文关键词： 矿用空气幕送风角度隔断能力数值模拟相似实验　出处：《中国安全生产科学技术》2015年03期 　论文类型：期刊论文

【摘要】：空气幕送风角度是影响其隔断能力的主要因素之一,依据动量定律建立循环型空气幕隔断巷道风流的理论模型,分析送风角度对隔断能力的影响。进一步利用FLUENT进行数值模拟计算,可视化不同送风角度下的巷道流场特性,模拟计算不同送风角度下的隔断压差及漏风量,并与相似实验数据进行对比分析。结果表明,模拟结果与相似实验数据基本一致。循环型空气幕隔断能力随送风角度的增大呈先增大后减小的趋势。送风角度为10°~15°时,隔断能力最大;当送风角度在10°~30°时,隔断能力受送风角度的影响较小;当送风角度大于30°时,随着送风角度的增大,隔断能力有较大幅度的减小,结合实际安装条件,循环型空气幕送风角度应为10°~30°。
[Abstract]:The angle of air curtain supply is one of the main factors that affect the separation capacity. According to the law of momentum, the theoretical model of circulating air curtain for separating the wind flow of roadway is established. The influence of the air supply angle on the isolation capacity is analyzed. Further numerical simulation calculation is carried out by using FLUENT to visualize the flow field characteristics of the roadway under different air supply angles, and to simulate and calculate the partition pressure difference and air leakage under different air supply angles. Compared with the similar experimental data, the results show that the simulation results are in good agreement with the similar experimental data. The separation capacity of the circulating air curtain increases first and then decreases with the increase of the air supply angle. When the air supply angle is 10 掳to 15 掳, When the air supply angle is greater than 30 掳, the partition capacity decreases greatly with the increase of the air supply angle, and the actual installation condition is combined with the increase of the air supply angle, and when the air supply angle is 10 掳to 30 掳, the partition capacity is less affected by the air supply angle, and when the air supply angle is greater than 30 掳, the partition capacity decreases greatly with the increase of the air supply angle. The angle of circulating air curtain should be 10 掳~ 30 掳.
【作者单位】：江西理工大学江西省矿业工程重点实验室;
【基金】：江西省教育厅科技项目(GJJ13401)
【分类号】：TD722

【参考文献】