多翼离心风机叶片参数优化设计对壁挂式空调新风部件的气动性能研究  

Research on aerodynamic performance of fresh air components of wall-mounted air conditioner based on blade parameter optimization design of multi-blade centrifugal fan

作　　者：林健辉 曹雷 张宏闯 周拨 马列 党南南 LIN Jianhui;CAO Lei;ZHANG Hongchuang;ZHOU Bo;MA Lie;DANG Nannan(GD Midea Air-Conditioning Equipment Co.,Ltd.,Foshan 528311)

机构地区：[1]广东美的制冷设备有限公司,广东佛山528311

出　　处：《家电科技》2024年第1期16-20,26,共6页Journal of Appliance Science & Technology

基　　金：美的制冷设备有限公司技术研究项目(RA00021263)。

摘　　要：随着城市化的发展,舒适健康以及审美需求逐年提升,新风空调的销量越来越大,新风量、新风噪声都越来越受到用户关注,新风带来的困扰越来越凸显。为改善多翼离心风机的气动性能和噪声值,基于CFD数值摸拟与实验测试相结合的方式对单圆弧叶轮进行全参数优化设计。通过响应面设计方法对叶片进口安装角βb_(1)、出口安装角βb_(2)、叶片内径D_(2)、叶片数Z几个参数进行参数化设计。经过多组方案计算,获得叶片参数与风量和功率的关系。研究发现通过调整叶轮参数,改善叶片流道内的流场分布,能够有效提高叶片的做功能力并且降低风机噪声性能。与原型相比,实测同风量噪声降低0.8dB(A),功率降低11.8%。The sales of fresh air conditioners are increased year by year with the the development of urbanization and the demand of comfort health and aesthetics.It has attracted more and more attention from consumers of the fresh air volume and the fresh air noise,and it has become increasingly prominent of the troubles caused by fresh air aerodynamic analysic.Therefore,in order to improve the aerodynamic performance and noise value of multi-blade centrifugal fans,the research conducted a full-parameter optimization design of a single arc blade based on a combination of CFD numerical simulation and experiments.It is used by the response surface design method to perform parameterized design on the blade's inlet installation angle βb_1,outlet installation angle βb_2,blade inner diameter D_2,and blade number Z.The relationship between blade parameters,air volume and power were obtained after multiple sets of scheme calculations.The results show that by adjusting the impeller parameters,the flow field distribution in the blade flow channel is improved,the work capacity of the blade is effectively improved and the fan noise performance is reduced.Compared with the prototype,the measured noise at the same air volume is reduced by 0.8 dB(A) and the power is reduced by 11.8%.

关 键 词：新风量 新风噪声 多翼离心风机 单圆弧叶形 参数化设计 气动性能 

分 类 号：TH432[机械工程—机械制造及自动化]