Influence of grooved volute casing parameters on pressure pulsation and erosion wear characteristics in a centrifugal pump

doi:10.1142/S0217984921505564

	Influence of grooved volute casing parameters on pressure pulsation and erosion wear characteristics in a centrifugal pump
	Shen, Zhengjing 2; Han, Wei 2; Zhong, Yiming 3; Luo, Bo 1; Li, Rennian 2; Chu, Wuli 1
刊名	MODERN PHYSICS LETTERS B
	2022-02-10
卷号	36 期号:4
关键词	GVC pressure pulsation erosion wear solid-liquid two-phase flow centrifugal pump
ISSN号	0217-9849
DOI	10.1142/S0217984921505564
英文摘要	Previous work has shown that performance and internal flow characteristics of a centrifugal pump can be significantly improved with grooved volute casing (GVC). However, it has been found that the selection of the design parameters of the groove structure also has a direct impact on the performance output, internal flow pressure pulsation and erosion wear characteristics of the overflow components of centrifugal pump, so it is necessary to further analyze the design rules of the groove structure parameters. In this study, we first investigated the influence of the number of grooves on the head, efficiency and unsteady pressure pulsation characteristics of the internal flow field of the centrifugal pump, and on this basis, the correlation between different particle parameters and the erosion wear of key overflow components under the conditions of solid-liquid two-phase flow were also studied, and the erosion wear characteristics of the inner wall of the volute casing of centrifugal pump with GVC and original volute casing (OVC) structures were compared. This research leads to the conclusion that when the number of grooves is 3, the groove structure has the least influence on the performance of the centrifugal pump, and the overall change of the performance curve is more stable. Additionally, the pressure pulsation at each monitoring point of the GVC under the same flow condition is smaller, and when the number of grooves increases, the pressure pulsation amplitude also decreases. When the number of grooves is 3, the GVC shows a more significant flow improvement effect under all flow conditions. Based on the improvement of the groove structure on the flow stability, the particle motion behavior can be affected at the same time, so that the pump with GVC can mitigate the erosion wear of the inner wall of the volute casing under the solid-liquid two-phase flow conditions, which improves the critical performance and service life of the key overflow components of the pump.
WOS研究方向	Physics
语种	英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
WOS记录号	WOS:000753697600009
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154793]
专题	能源与动力工程学院兰州理工大学
作者单位	1.Northwestern Polytech Univ, Sch Power & Energy, Xian 710129, Peoples R China 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China; 3.China State Shipbldg Corp, Inst 704, Shanghai 200031, Peoples R China;
推荐引用方式 GB/T 7714	Shen, Zhengjing,Han, Wei,Zhong, Yiming,et al. Influence of grooved volute casing parameters on pressure pulsation and erosion wear characteristics in a centrifugal pump[J]. MODERN PHYSICS LETTERS B,2022,36(4).
APA	Shen, Zhengjing,Han, Wei,Zhong, Yiming,Luo, Bo,Li, Rennian,&Chu, Wuli.(2022).Influence of grooved volute casing parameters on pressure pulsation and erosion wear characteristics in a centrifugal pump.MODERN PHYSICS LETTERS B,36(4).
MLA	Shen, Zhengjing,et al."Influence of grooved volute casing parameters on pressure pulsation and erosion wear characteristics in a centrifugal pump".MODERN PHYSICS LETTERS B 36.4(2022).