Energy loss analysis of impeller flow of screw centrifugal pump

doi:10.6041/j.issn.1000-1298.2014.09.021

	Energy loss analysis of impeller flow of screw centrifugal pump
	Li, Rennian; Shen, Zhengjing; Han, Wei; Quan, Hui; Li, Qifei
刊名	Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery
	2014-09-25
卷号	45 期号:9 页码:125-130
关键词	Centrifugal pumps Computational fluid dynamics Energy conversion Energy dissipation Impellers Liquids Screws Energy loss analysis Quantitative indices Relative velocity Screw centrifugal pumps Solid-liquid two phase flows Transition regions Transmission media Transmission medium
ISSN号	10001298
DOI	10.6041/j.issn.1000-1298.2014.09.021
英文摘要	The flow regime in screw centrifugal pump was simulated by the method of computational fluid dynamics (CFD), which can acquire the distribution of the pressure and relative velocity on the work side and back side of blade. The Rothalpy value along the streamlines of blade was used as a quantitative index of energy loss. The energy loss within the impeller field was analyzed from the perspective of energy loss when the transmission medium is pure water and solid-liquid two phase flow, in which the concentration of sand is 20% and the diameter of sand is 0.076 mm. The result shows that the front of impeller is a transition region of energy conversion, the screw part is the main region of energy increase, and the friction loss at the middle of screw part has an effect on the working capacity of screw part. Compared with pure water transmission medium, the working capacity of the impeller shows some improvement when the transmission medium is the solid-liquid two phase flow. And the energy of the two kind transmission media tends to become average at the outlet of impeller.
语种	中文
出版者	Chinese Society of Agricultural Machinery
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112634]
专题	能源与动力工程学院新能源学院
作者单位	School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Rennian,Shen, Zhengjing,Han, Wei,et al. Energy loss analysis of impeller flow of screw centrifugal pump[J]. Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery,2014,45(9):125-130.
APA	Li, Rennian,Shen, Zhengjing,Han, Wei,Quan, Hui,&Li, Qifei.(2014).Energy loss analysis of impeller flow of screw centrifugal pump.Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery,45(9),125-130.
MLA	Li, Rennian,et al."Energy loss analysis of impeller flow of screw centrifugal pump".Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery 45.9(2014):125-130.