Formula for calculating axial force in multi-stage centrifugal pumps
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As the title suggests, I’m seeking help – an equation for calculating the axial force in multi-stage centrifugal pumps (an estimated value will suffice). I found many formulas online, and the calculation results varied. Seeking guidance from experts! Thank you.
This post was last edited by foam_ZPTK on 2018-1-7 at 22:55. Head height H is converted to pressure P; for example, 1000 m = 10 MPa = 10,000,000 Pa. F = P * S, and the axial force arises due to the difference in area between the front and rear cover plates. F=K*P*π (square of R ring minus square of R hub). For specific speeds ranging from 100 to 220 (according to the domestic calculation formula), K is set to 0.7. Calculate using standard units. The unit for radius is m. This is a closed impeller with only a front mouth ring, without a rear mouth ring or balance holes. The force is directed toward the inlet. This does not account for the forces balanced by the balancing mechanism (balance disc, balance drum).