离心式压缩机回流器叶片载荷分布对级性能的影响研究  

Investigation on the Effect of Load Distribution of Return Channel Vane on Performance of Centrifugal Compressor on Basic Stage

作　　者：范永生 王剑[1] 尹熙文 闻苏平[1] 谭佳健[2] 李云[2] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049 [2]沈阳鼓风机集团股份有限公司

出　　处：《风机技术》2017年第6期15-21,共7页Chinese Journal of Turbomachinery

基　　金：国家自然科学基金重点项目(项目编号51236006);高负荷压气机定常/非定常流动机理及流动控制研究

摘　　要：离心压缩机回流器叶片载荷分布决定了回流器叶片型线结构,可以通过改变叶片载荷控制参数K5,形成不同的回流器叶片型线,数值研究不同载荷分布下的回流器叶片对基本级性能的影响。研究结果表明:K5值对回流器性能影响很大,针对不同的基本级,都有最佳的回流器叶片载荷控制参数K5与之相匹配;对于基本级而言,当K5=2.4时所确定的回流器叶片型线结构使基本级的多变效率达到最大值,气动性能最优。This paper presents a numerical study on the effect of load distribution of a return channel vane on centrifugal compressor stage performance.The return vane geometry is formed by a given loading distribution. Several return channel vanes profile with different load distribution are generated by the variation of the leading edge vane load parameter K5. The results show that K5 has a great influence on the performance of return channel. There is an optimal leading edge vane load parameter K5 for each basic stage.For the basic stage in this study, when K5 is equal to 2.4, the compressor achieves the maximum polytroic efficiency and thus the optimal aerodynamic performance.

关 键 词：压缩机 基本级 回流器 叶片载荷分布 数值研究 

分 类 号：TH452[机械工程—机械制造及自动化] TK05[动力工程及工程热物理]