Dynamic analysis of the locking automatic balancing device of the multistage centrifugal pump

摘要

The reliability of automatic balancing device of centrifugal pumps can be decreased in case of intensive wear of cylindrical throttle before and after the unloading device of the balancing disk. Therefore, the locking automatic balancing device is offered, operating as the axial hydrostatic bearing with hyper bearing capacity and, simultaneously, as the non-contact consolidation with self-adjustable leaking. The dynamic calculation is based on the equations of pump rotor and regulator rod axial movement and also on equations of fluid flow balance through throttles taking into consideration compression and displacement flow. The methodology of dynamic calculation gives the opportunity to select the main parameters of hydro-mechanical system engineering based on providing the transient processes quality and stability conditions.