摘要
矿用风机是一种重要的矿井通风设备,在保障井下工作人员安全以及生产活动的正常开展方面具有重要意义。在通风机的使用过程中也经常出现各类故障,叶片故障是一种常见而且危害较大的故障,同时叶片结构与布局对通风机效能有重要影响。利用数值分析方法对HL3型矿用轴流通风机叶片流场进行仿真分析,建立了通风机叶片局部流场模型,分析得到在动叶片额定功率下叶片流场速度矢量分布。一二级叶片之间流体存在明显的扰流,叶片1的吸力面空气流速增加明显,叶轮旋转对空气施压,加速气体进入到第二季叶轮,进行第二次加速,为通风机叶片结构设计的效能验证提供了一种可视化、可操作的仿真实验手段,对叶片结构的研究具有重要意义。
Mine fan is an important mine ventilation equipment,which is of great significance to ensure the safety of underground workers and the normal development of production activities.In the process of using the ventilator,there are many kinds of faults,blade fault is a common and harmful fault.At the same time,the structure and layout of blades have an important impact on the efficiency of fans.Therefore,the numerical analysis method was used to simulate the flow field of HL3 axial-flow fan blades.The local flow field model of fan blades was established,and the velocity vector distribution of blade flow field under the rated power of moving blades was obtained.There is obvious turbulence between the first and second stage blades,the air velocity on the suction surface of blade 1 increases obviously,the rotation of impeller exerts pressure on the air,accelerates the gas to enter the second season impeller,and carries out the second acceleration,which provides a visual and operable simulation experimental means for the effectiveness verification of fan blade structure design,and is of great significance for the research of blade structure.
作者
武鑫
Wu Xin(Yuxi Coal Mine Limited Liability Company of Shanxi Lanhua Science and Technology Innovation Group,Jincheng,Shanxi 048000,China)
出处
《机电工程技术》
2020年第11期137-138,160,共3页
Mechanical & Electrical Engineering Technology
