Study On Application Of Hydrostatic Bearing To The Equilibrium Of Axial Force Of Multistage Centrifugal Pump

Hydrostatic bearing can solve the equilibrium problem of axial force of multistage centrifugal pump satisfactorily. Taking the hydrostatic equilibrium of axial force of pump DM360 as the example, this paper elaborates design calculation and dynamic-static characteristic analysis of hydrostatic bearing with twisting plate throttle, derives design parameters and formulas of bearing structure, discusses effects of various main factors (oil viscosity, compressibility, distortion coefficient of twisting plate, pressure of oil source, and bearing clearance) on dynamic characteristic, and obtains some conclusions about the application of hydrostatic bearing in engineering practice. And at the same time, considering the situation of varying oil viscosity and oil-flow inertia, this paper analyzes flowing properties of fluid in bearing clearance, which provide theory reference for more reasonable design and application of hydrostatic bearing in the equilibrium of axial force, and then carries out computer simulation and experiment verifying.