关键词: 叶轮, 蜗壳, Pro/E, 耦合性, 实体造型

Abstract: The impeller and volute are important parts of centrifugal pump.Their degree of precision and coupling production directly affect the performance of centrifugal pump water conservancy.In order to improve the flow loss generated atthe impeller and volute coupling, Pro/E is taken as the design platform. the analysis and mapping method of impeller and volute Wooden patterns 2D projection are put forward. Combined with Pro/E in the "offset coordinate datum point command" commands, the twisted blade and volute impeller entity modeling precision are realized through Fluent numerical simulation. The pressure and velocity distribution of impeller and volute coupling shows that pressure and velocity are uniform regularity, and head of delivery calculation shows that the design requirements meet design requirement.The analysis results show that this method is not only drawing accurate, but also is fast and flexible, and it can improve the flow loss of the coupling of the impeller and the volute, which lays the foundation for further numerical analysis.

Key words: Impeller, Volute, Pro/E, Coupling, Solid modeling