Hydraulic Performance Analysis of Wide Channel Impeller of High Power Maglev Pump
The maglev pump integrates the maglev motor and the pump body structure,uses the magnetic field to drive the impeller to rotate,and implements active/passive levitation constraints on the remaining five degrees of freedom,so as to realize a completely bearingless medium pumping.It is widely used in the ultraclean transportation of electronic chemicals in high-tech industrial fields including semiconductor manufacturing.At present,foreign high-power maglev pump products have the problem of low pumping efficiency.Besides,with the increase of power,the problem of hydraulic axial force balance of the maglev pump becomes more and more prominent.Therefore,the paper designs a high-power maglev pump with a wide flow channel impeller,and analyzes its hydraulic efficiency,hydraulic axial force and hydraulic radial force.First,the influence of narrow channel effect on the hydraulic efficiency of high-power magnetic levitation pump is described.A comparative analysis of the hydraulic efficiency of the wide and narrow flow channel impellers are carried out.Then the hydraulic axial force and radial force of wide channel impeller are calculated and analyzed,which shows the influence of wide channel design on the hydraulic axial force and radial force of the impeller.This paper will provides key technical support for high-efficiency hydraulic design and development of high-power maglev pump.
maglev pumpwide channelhydraulic efficiencyaxial forceradial force
万方数据
维普
