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1.前言关于限制离心压气机工作范围的喘振界限,有的按管路系统的不稳定现象处理,有的作为叶轮流道及扩压器内流动的失速等问题研究。对于在喘振点的叶轮进、出口的相对速比,学者们提出了各种不同的数值,也有的指出该值不是常量,而是分布值。笔者着眼于导风轮部分的影响,对临界相对速比试作较为一般性的解释。
1. INTRODUCTION Restrictions on the limits of centrifugal compressor working range of surge limits, and some according to the instability of the piping system to deal with, and some as the impeller flow and diffuser flow stall and other issues. For the relative speed ratio of the impeller inlet and outlet at the surge point, various values have been proposed by the scholars, while others have pointed out that the value is not a constant but a distributed value. The author looks at the influence of the part of the wind deflector and tries to make a more general explanation of the critical relative speed ratio.