不同气流落后角对轴流式通风机安全效率的影响分析  

Analysis of Influence of Different Air Flow Backward Angle on Safety Efficiency of Axial Fan

作　　者：徐志国 Xu Zhiguo(Jinhuagong Mine Jinneng Holdings Coal Industry Group Co.,Ltd.,Datong Shanxi 037016)

机构地区：[1]晋能控股煤业集团有限公司晋华宫矿,山西大同037016

出　　处：《机械管理开发》2021年第6期138-139,共2页Mechanical Management and Development

摘　　要：为了最大程度发挥通风机的性能,在提高通风效率的同时,保证叶片的使用寿命及安全。在对通风机进行设计过程中,要选取最优的参数。因此,对气流落后角的影响采用数值模拟的方式进行分析,在不同的气流落后角取值中,以14°的气流落后角数值最优,具有较高的全压效率及全压系数,并且此时作用在叶片的静压力分布均匀。通过分析选取最优的气流落后角,为轴流通风机的结构优化及参数选取提供参考。In order to maximize the efficiency of ventilator performance, in the process of fan design, the optimal parameters should be selected to improve the ventilation efficiency and ensure the service life and safety of the blade.The influence of airflow lag angle is analyzed by numerical simulation. Among the different values of airflow lag angle,the value of airflow lag angle of 14° is optimal, which has higher total pressure efficiency and total pressure coefficient. And the static pressure distribution of the blade is uniform at this time. By analyzing and selecting the optimal airflow lag angle, it provides a reference for the structure optimization and parameter selection of axial flow fan.

关 键 词：轴流通风机 气流落后角 全压效率 安全 

分 类 号：TD441[矿业工程—矿山机电]