A New Proposed Return Guide Vane for Compact Multistage Centrifugal Pumps
Joint Authors
Ma, Dongqi
Lu, Weigang
Zhang, Qihua
Gao, Xiongfa
Wei-dong, Shi
Wang, Chuan
Xu, Yan
Source
International Journal of Rotating Machinery
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-19
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
For widely used multistage centrifugal pumps, their former structures are so bulky that nowadays growing interest has been shifted to the development of more compact structures.
Following this trend, a compact pump structure is provided and analysed.
To maintain the pump’s pressure recovery, as well as to meet the water flow from the impeller, a circumferential twisted return guide vane (RGV) is proposed.
To validate this design method, the instantaneous CFD simulations are performed to investigate the rotor-stator interventions.
Within the impeller, the pressure fluctuation is cyclic symmetry, where the impeller frequency dominates.
At the zone where flow leaves impeller for RGV, the pressure fluctuation is nonperiodic, the impeller frequency is major, and the rotation frequency is secondary.
Within RGV, the periodic symmetric fluctuation is recovered, where the rotation frequency is governing.
The fluctuation decreases from seven cycles within impeller to two cycles within RGV, indicating that the flow from impeller is well handled by RGV.
To examine the pump’s performance, a prototype multistage pump is designed.
The testing shows that the pump efficiency is 57.5%, and the stage head is 9 m, which is comparable to former multistage centrifugal pumps.
And this design is more advantageous in developing compact multistage centrifugal pumps.
American Psychological Association (APA)
Zhang, Qihua& Wei-dong, Shi& Xu, Yan& Gao, Xiongfa& Wang, Chuan& Lu, Weigang…[et al.]. 2013. A New Proposed Return Guide Vane for Compact Multistage Centrifugal Pumps. International Journal of Rotating Machinery،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-490277
Modern Language Association (MLA)
Zhang, Qihua…[et al.]. A New Proposed Return Guide Vane for Compact Multistage Centrifugal Pumps. International Journal of Rotating Machinery No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-490277
American Medical Association (AMA)
Zhang, Qihua& Wei-dong, Shi& Xu, Yan& Gao, Xiongfa& Wang, Chuan& Lu, Weigang…[et al.]. A New Proposed Return Guide Vane for Compact Multistage Centrifugal Pumps. International Journal of Rotating Machinery. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-490277
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-490277