上隅角瓦斯吹排风机试验研究

Experiment Research on Fan for Blowing Methane in Upper Corner

介绍了用于煤矿上隅角瓦斯的吹排风机的试验,选择了6个比较特殊的截面,利用五孔球探针测量了风机风筒内部的压力和各向速度,从而可以分析了解风筒内的流场分布。通过分析提出了适合本风机的切向速度分布模型,得到了二次流分布图,为消除二次流影响提供参考。

Expresses the experiment on the fan for blowing methane in upper corner in coal mine. Selecting six especial sections and using five - broe globose probe, we measure pressure and each - direction velocity inside the bucket of fan, consequently, the distribution of flow field inside the bucket can be analyzed and known. By analysing, we put forward the distribution model of tangential velocity that is fit for this fan, get the distribution graph of section - flow which can provide consult for avoiding the influence of section - flow.