Research on Performance of Centrifugal Pump with Different-type Open Impeller  

作　　者：CUI Baoling CHEN Desheng WANG Canfei ZHU Zuchao JIN Yingzi JIN Yuzhen 

机构地区：[1]The Province Key Laboratory of Fluid Transmission Technology,Zhejiang Sci-Tech University

出　　处：《Journal of Thermal Science》2013年第6期586-591,共6页热科学学报（英文版）

基　　金：supported by National Natural Science Foundation of China granted No.51276172,No.50976105

摘　　要：To investigate the influence of impeller type on the performance and inner flow of centrifugal pump, the numeri- cal simulation and experimental research were carried out on the same centrifugal pump with straight-blade and curved-blade open impeller. Based on SIMPLEC algorithm, time-averaged N-S equation and the standard k-e turbulence model, the numerical results are obtained. The pressure distribution in the different type impellers is uniform, while the low pressure area in straight-blade inlet is larger. The vortexes in the passage of impeller exist in both cases. Relative to curved-blade impeller, there are larger vortexes in most of the flow passages except the passage near the tongue in straight-blade impeller. Also some small backflow regions are found at the blade inlet of two impellers. The characteristic curves achieved by numerical simulation basieaUy agree with those by experiment, and straight-blade open impeller centrifugal pump has a better hydraulic performance.

关 键 词：open impeller centrifugal pump numerical simulation EXPERIMENT 

分 类 号：TH311[机械工程—机械制造及自动化] TQ051.21[化学工程]