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Experimental Optimization of Jet self-priming centrifugal pump Based on Orthogonal Design and Grey-Correlational Method

引用

Journal of Thermal Science 2020年第1期29卷 241-250页

作者： CHANG Hao SHI Weidong LI Wei WANG Chuan ZHOU Ling LIU Jianrui YANG Yongfei RAMESH KAgarwal Research Center of Fluid Machinery Engineering and Technology Jiangsu UniversityZhenjiang 212013China Department of Mechanical Engineering&Materials Science Washington University in St.LouisSt.Louis 63130USA School of Mechanical Engineering Nantong UniversityNantong 226019China School of Hydraulic Energy and Power Engineering Yangzhou UniversityYangzhou 225002China

The novel jet self-priming centrifugal pump,as important modern irrigation equipment,is widely used in large-scale irrigation,mine drainage and so *** order to improve the profile streamline of blade,the inlet shape of impeller was designed as distorted and the outlet shape as cylindrical,which can not only improve the pump efficiency,but also shorten the self-priming ***,the novel jet self-priming system was proposed,by employing the jet nozzle and check valve to improve the velocity of ***,nine different structure jet nozzles were designed based on the orthogonal design method,and the relevant self-priming experiments were performed on I level accuracy test bench in Jiangsu *** to the greycorrelational analysis,the influence of the nozzle geometry parameters on the self-priming performance was *** relationship between self-priming time and self-priming height was *** test results showed that the hydraulic design of jet self-priming centrifugal pump was reasonable;all indicators met the Chinese national standard;the head reached 21.04 m and efficiency was 72.8%under the design flow *** is more,the self-priming performance was obviously improved by adjusting the geometrical parameters of *** the height of the self-priming process was 5.3 m,the self-priming time reached 62 s,which was much shorter than the national ***,this research could provide reference for designing the structure of jet self-priming centrifugal pump.

关键词： self-priming centrifugal pump design optimization orthogonal experiment grey-correlational

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