Research on Axial Forces Balance of Stamping-welding Canned Motor Pump

In order to balance axial forces on stamping-welding canned motor pump for safe and reliable operation, the type PBCY80-65-160 pump was selected as the computational model. Combined with various reasons why axial forces of the pump were generated, the theoretical calculation and methods of numerical...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2018-06, Vol.168 (1), p.12026
Main Authors: Qianyan, Tan, Fanyu, Kong, Yuxing, Bai, Xin, Yuan
Format: Article
Language:English
Subjects:
Axial flow pumps
Axial forces
Computer applications
Flow resistance
Impellers
Internal flow
Internal pressure
Mathematical models
Numerical methods
Pressure distribution
Service life
Simulation
Stamping
Stress concentration
Welding
Working conditions
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Summary:In order to balance axial forces on stamping-welding canned motor pump for safe and reliable operation, the type PBCY80-65-160 pump was selected as the computational model. Combined with various reasons why axial forces of the pump were generated, the theoretical calculation and methods of numerical simulation were chosen to analyze the size, directions and rules of axial force. At the same time, the distribution and trend of the axial force components of the impeller under different working conditions are studied whether there is the balance hole or not. The results show that, in the theoretical calculation and numerical simulation calculation, the gap and internal impact loss of the internal flow field of axial forces were neglected when the internal flow of the motor was seen as an ideal flow through the resistant elements. Hence, it could not fully represent the internal pressure distribution of the pump, which caused the calculated data a little larger than simulated data. Also, the method of combining the balance hole and impeller rear seal ring could effectively balance the axial force and extend the service life of stamping-welding canned motor pump.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/168/1/012026