Multistage pump axial force control and hydraulic performance optimization based on response surface methodology

doi:10.1007/s40430-021-02849-1

	Multistage pump axial force control and hydraulic performance optimization based on response surface methodology
	Qian, Chen 1; Luo, Xin 1; Yang, Congxin 1; Wang, Bin 2
刊名	JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
	2021
卷号	43 期号:3
关键词	Axial force Multistage pump Response surface Secondary impeller blade parameters
ISSN号	1678-5878
DOI	10.1007/s40430-021-02849-1
英文摘要	In order to comprehensively optimize the axial force and hydraulic performance of the multistage pump, considering that there are relatively more secondary impeller stages and the blade profile has a greater impact on the axial force and hydraulic performance, Plackett-Burman test design method in this paper is adopted to conduct significance analysis and screening of the secondary impeller parameters. Based on the response surface methodology, a central composite test is designed for three control variables with strong sensitivity. The multiple regression model between the parameters of the secondary impeller and the hydraulic performance and axial force of the multistage pump is established. The optimal parameter combination which takes the performance and axial force into account is obtained. The accuracy of the optimization results is verified through tests. The results show that the blade exit angle, outlet diameter and blade wrap angle of the secondary impeller have the most significant influence on the axial force and hydraulic performance of the multistage pump. The results of variance analysis and coefficient test show that the regression model is highly significant and can reflect the objective relationship between the control parameters of the secondary impeller shape and the response objectives. A larger outlet diameter and blade wrap angle of the secondary impeller can improve the head of the multistage pump. A larger blade wrap angle and a smaller blade exit angle of the secondary impeller can reduce the axial force of the multistage pump. By solving the multiple regression equation, it is found that when the outlet diameter of the secondary impeller is 292 mm, the blade exit angle is 22 degrees, and the blade wrap angle is 150 degrees, the axial force of the multistage pump is the lowest and the hydraulic performance is slightly improved. It is verified by experiments that the head and efficiency of the optimized multistage pump increase by 0.95% and 1.71%, respectively, the temperature of the front and rear bearings decreases by 16.49% and 16.17%, respectively, and the vibration speed of the multistage pump along three directions is significantly reduced.
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000620680800003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147461]
专题	能源与动力工程学院
作者单位	1.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China; 2.Petrochem Res Inst Petro China, Lanzhou Petrochem Res Ctr, Lanzhou 730060, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Qian, Chen,Luo, Xin,Yang, Congxin,et al. Multistage pump axial force control and hydraulic performance optimization based on response surface methodology[J]. JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING,2021,43(3).
APA	Qian, Chen,Luo, Xin,Yang, Congxin,&Wang, Bin.(2021).Multistage pump axial force control and hydraulic performance optimization based on response surface methodology.JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING,43(3).
MLA	Qian, Chen,et al."Multistage pump axial force control and hydraulic performance optimization based on response surface methodology".JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING 43.3(2021).