2018
DOI: 10.1177/1687814018765599
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Evaluation of shaft forces in a vertical canned motor through local hydraulic loss analysis

Abstract: In order to improve the stability and the lifespan of rotating components in a canned motor of a centrifugal pump, a local hydraulic loss analysis has been performed based on detailed flow field analysis by Reynolds-averaged Navier-Stokesbased re-normalization group k-e turbulence model simulation. An energy balance equation was applied to analyze the local hydraulic loss distribution. The stator flow channel in the motor was modeled as a porous medium, by utilizing the Ergun equation. Due to the complex struc… Show more

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Cited by 9 publications
(4 citation statements)
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“…The calculation methods of axial force of the fuel centrifugal pump are mainly divided into the theoretical formula method, experimental measurement method, and numerical simulation method [11][12][13][14][15]. The theoretical formula method is relatively simple but its accuracy is poor and the calculation accuracy of the axial force of the impeller with different structures still needs to be improved [16].…”
Section: Introductionmentioning
confidence: 99%
“…The calculation methods of axial force of the fuel centrifugal pump are mainly divided into the theoretical formula method, experimental measurement method, and numerical simulation method [11][12][13][14][15]. The theoretical formula method is relatively simple but its accuracy is poor and the calculation accuracy of the axial force of the impeller with different structures still needs to be improved [16].…”
Section: Introductionmentioning
confidence: 99%
“…At present, many scholars have studied different axial force balancing methods of centrifugal pumps, and analyzed their effects on performance, and compared the advantages and disadvantages of different balancing methods [2][3]. The addition of back blades is a common method to balance the axial forces of slurry pumps, and some scholars have also studied the influence of back blades on the axial force and operation performance of centrifugal pumps [4][5][6][7][8]. The impeller's front and rear cover plates with back blades, in addition to balancing the axial force of slurry pump, can also reduce the packing cavity pressure, and prevent particles from getting into pump cavity, reduce the pressure values acting on the sealing rings, so as to reduce leakage and improve service life of the pump.…”
Section: Introductionmentioning
confidence: 99%
“…Gantar et al 6 analyzed the influence of the rotating fluid in the clearance and the radial leakage of the wear ring on the axial force. Guo et al 7 discussed the formation of 1 vortex in the clearance in a canned motor pump. They considered the influence of complex clearance flow and strong annular turbulence on axial force, and analyzed the hydraulic loss of canned motor pump.…”
Section: Introductionmentioning
confidence: 99%