流体机械

2019, v.47;No.567(09) 47-50

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基于正交试验的多翼离心风机气动性能优选
Aerodynamic Performance Optimization of Squirrel Cage Fan Based on Orthogonal Experiment

肖千豪;蒋博彦;王军;申志贤;吴灵辉;
Xiao Qianhao;Jiang Boyan;Wang Jun;Shen Zhixian;Wu Linghui;School of Energy and Power Engineering,Huazhong University of Science and Technology;Integrated Zhejiang Province Key Laboratory of health smart kitchen system;

摘要(Abstract):

叶轮和蜗壳是多翼离心风机的核心部件,其结构参数和相互匹配关系对风机的气动性能有着重要的影响。本文基于正交试验的方法,通过方差分析,确定了叶片出口角β_2、叶轮切割深度H、蜗壳偏移量L这3个参数以及交互作用对多翼离心风机气动性能的影响程度,以最大静压为主要的优化目标对风机气动性能进行优选。研究结果表明:蜗壳偏移量L对风机的气动性能影响程度最大,优选后风机与原机相比,其最大静压提高了31.6%,最大流量增加了0.3 m~3/min。
The impeller and volute are the core components of squirrel cage fan,its structural parameters and mutual matching relationship have an important impact on the performance of the squirrel cage fan.The effects of such three parameters as blade exit angle,impeller cutting depth H and volute offset L and their interactions on the aerodynamic performance of the squirrel cage fan were determined by variance analysis based on the orthogonal experiment method.The aerodynamic performance of the fan was optimized with the maximum static pressure as the main optimization target. The results show that the volute offset L had the greatest influence on the aerodynamic performance of the fan and the maximum static pressure of the optimized fan was increased by 31.6% and the maximum flow rate was increased by 0.3 compared with the original fan.

关键词(KeyWords): 多翼离心风机;正交试验;蜗壳偏移;叶轮切割
squirrel cage fan;orthogonal experiment;volute offset;impeller cutting

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基金项目(Foundation): 国家重点研发计划专项资助项目(2017YFC0211505);; 中国南方智谷引进创新团队资助项目(2013CXTD01)

作者(Author): 肖千豪;蒋博彦;王军;申志贤;吴灵辉;
Xiao Qianhao;Jiang Boyan;Wang Jun;Shen Zhixian;Wu Linghui;School of Energy and Power Engineering,Huazhong University of Science and Technology;Integrated Zhejiang Province Key Laboratory of health smart kitchen system;

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