基于三元流理论的高速动车组冷却风机叶轮设计及优化分析  

Design and Optimization Analysis of High-speed EMU Cooling Fan Impeller Based on Three-dimensional Flow Theory

作　　者：郭双 李建森 朱与伦 杨蓓 GUO Shuang;LI Jian-sen;ZHU Yu-lun;YANG Bei(Luoyang NorthGlass Trituibo Fan Technology Co.,Ltd.,Luoyang 471003,China)

机构地区：[1]洛阳北玻三元流风机技术有限公司,洛阳471003

出　　处：《价值工程》2023年第24期62-64,共3页Value Engineering

基　　金：河南省重点研发专项“光伏玻璃生产线远程监测高效节能风机研发及产业化”(项目编号:221111320400)。

摘　　要：为满足高速动车组冷却风机的高效率、低振动、高稳定性的要求,本研究设计开发了一种三元流高效节能风机叶轮。采用三维流场对该叶轮进行数值模拟及全工况计算。结果表明:采用三元流理论设计优化的叶轮,叶轮内部的气流流线更加合理;与传统二元流相比,静压梯度增长均匀,波动幅度大大减小,气流的大小和方向更加均匀,流道内部流动损失小;三元流设计的叶轮尺寸及重量相对降低,叶轮效率在全工况线路设计点附近提高了7个百分点。In order to meet the requirements of high efficiency,low vibration and high stability of high-speed EMU cooling fan,this study designed and developed a ternary flow high-efficiency energy-saving fan impeller.The impeller is numerically simulated and the full working condition is calculated by using a three-dimensional flow field.The results show that the ternary flow theory is used to design and optimize the impeller,and the airflow flow line inside the impeller is more reasonable.Compared with the traditional binary flow,the static pressure gradient grows evenly,the fluctuation amplitude is greatly reduced,and the size and direction of the airflow are more uniform.The flow loss inside the flow channel is small;the size and weight of the impeller designed by the ternary flow are relatively reduced,and the impeller efficiency is increased by 7 percentage points near the design point of the full-service line.

关 键 词：三元流 高速动车组 冷却风机叶轮 优化分析 

分 类 号：TH311[机械工程—机械制造及自动化]