Inlet Flow Analysis in Magnetic-Drive Condenser Pump Based on Numerical Simulation of Flow Field

Variable-pitch inducers can be mounted before the impeller inlet to improve the anti-cavitation properties of magnetic-drive condenser pump.The fluid field of two magnetic-drive condenser pump models,which with and without the variable-pitch inducer before the impeller inlet,was numerically simulated by Fluent program,and the distribution of pressure was taken out and the trace of the particle was plot.The main characteristics of the interior fluid field were described by comparing with two groups of data.The results of numerical simulation show that the pump with the variable-pitch inducer can improve the anti-cavitation performance.