Centrifugal compressor is a kind of low power,small flow,high speed,high pressure rotating machinery,at present,in the centrifugal compressor,usually with a shunt blade design.In this paper,the influence of the length of the diverter blade on the performance of the compressor and its variation rule are studied by changing the form of the length of the diverter blade and the method of numerical simulation.The research shows that the length of the shunt blade is not the longer the better,nor the shorter the better,only the appropriate shunt blade length can better improve the performance of the compressor.For the centrifugal compressor impeller with diverting blade studied,the compressor performance is optimal when the ratio coefficient of the meridian arc length of the diverting blade root and the meridian arc length of the main blade root is N=0.6389 times.The research results can provide some reference for the development and research of centrifugal compressor with shunt blade.
关键词
离心压气机/数值模拟/分流叶片/长度比例
Key words
Centrifugal compressor/Numerical modeling/Diverter blade/Length ratio