Optimization design of compound impeller based on orthogonal experiment
LI Yalin1,2*, YOU Xiaobai1, XU Hui2, ZHENG Feng2
1. National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. Ningbo FOTILE Kitchen Ware Co., Ltd., Ningbo, Zhejiang 315336, China
Abstract：In order to improve the hydraulic performance of the new type pump for dishwashers, the composite impeller, which is a core component of the new type pump was optimized based on the orthogonal optimization design method. The width of the blade outlet, number of blades and the height of the rear cover were selected as the design parameters, and a comparison of the results of the orthogonal test was done based on the range analysis of the L25(56)orthogonal table, and the influence of different parameters on the head and efficiency of the new type pump was obtained. The results show that the primary and secondary influence order of parameter factors on the head and efficiency is the number of blades, width of the blade outlet and the height of the rear cover plate; the optimal solution of the orthogonal optimization is that the number of blades was 8, width of the impeller outlet is 16.33 mm, and the height of the cover plate is 8.5 mm; compared with the original scheme, the optimized scheme shows that the head and efficiency of the pump are increased by 14.84% and 15.25%, respectively, under the design condition; the simulation results show that the internal flow of the optimized impeller is significantly improved, pressure in the flow channel became smaller, flow velocity at the outlet of the impeller is reduced, flow loss is reduced, and the vortex is as well reduced. The research results reveal the influence laws of the three parameters, and provide a reference for the hydraulic design of the compound impeller used in the new type pump for dishwashers.
李亚林,*,尤晓柏,徐慧,郑峰. 基于正交设计方法的复合式叶轮优化设计[J]. 排灌机械工程学报, 2023, 41(6): 556-561.
LI Yalin,*,YOU Xiaobai,XU Hui,ZHENG Feng. Optimization design of compound impeller based on orthogonal experiment. Journal of Drainage and Irrigation Machinery Engin, 2023, 41(6): 556-561.
