摘要：某一旋风除尘器的分级效率曲线是在特定工况下试验求得的，不能任意推广应用。作者通过对相似旋风除尘器特性的理论分析和试验研究，提出了相似旋风除尘器的基本关系式，并把该关系式应用于推算其它工况下性能，对不同型号旋风除尘器进行性能比较和旋风除尘器设计计算。

关键词：旋风除尘器;相似特性;分级效率;

Abstract：The classification efficiency curve of a certain cyclonicis obtainedbvexperimentunder the special working conditions, so it can't be spreaded and used wilfully. In this paper, thebasic relation formula is suggested, based on the theoratical analysis and experimental research otthe characteristic of analogous cyclonic collector, and this formula can be used to calculate theproperties under the other working conditions.The comparison of the properties and designing calculations of various type of cyclonic collectors are also carried out.

Key words：cyclonic collector;analogous characteristic; classification efficiency