低工况下轴流压气机可转导叶调节规律研究  

Research on the Adjustment Law of Variable Inlet Guide Vane of Axial Compressor at Off-design Condition

作　　者：王萌[1] 王明金 王忠义[1] 孙涛[1] WANG Meng;WANG Ming-jin;WANG Zhong-yi;SUN Tao(College of Power and Energy Engineering,Harbin Engineering University,Harbin,China,Post Code:150001)

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001

出　　处：《热能动力工程》2021年第9期33-41,共9页Journal of Engineering for Thermal Energy and Power

基　　金：国家科技重大专项(2017-I-0007-0008)。

摘　　要：以某型两级跨音速轴流压气机为研究对象,采用实验及数值模拟方法,针对非设计转速下可转导叶调节角度对压气机工作稳定性的作用规律展开研究。首先,通过与实验结果进行对比,验证了数值模拟方法的有效性。其次,对三种不同调节角度下的压气机稳定工作裕度及内部流动机理进行了深入分析。结果表明:随着安装角由正到负调节,效率-流量曲线总体向左移动,压比-流量曲线向左下方移动,当可转导叶调节角度为-8°时,压气机喘振裕度由0°时的7.71%增加到8.24%。A two-stage transonic axial flow compressor is adopted as the research object.Experimental and numerical simulation methods are used to study the effect of the angle of the inlet guide vane on the working stability of the compressor at off-design speed.Firstly, the validity of the numerical simulation method is verified by comparing with the experimental results.Secondly, the stability working margin and internal flow mechanism of the compressor under three different adjustment angles are analyzed in depth.The results show that as the installation angle is adjusted from positive to negative, the overall efficiency-flow curve moves to the left on the working characteristic map, and the pressure ratio-flow curve moves to the lower left.As the angle of the inlet guide vane is set to-8°,the surge margin of the compressor is increased from 7.71% at 0° to 8.24%.

关 键 词：轴流压气机 可转导叶 喘振裕度 数值模拟 实验测量 

分 类 号：TK474.81[动力工程及工程热物理—动力机械及工程]