Study on Cavitation of Port Plate of Seawater Desalination Pump with Energy Recovery Function

To address the problem of low integration and efficiency reverse osmosis desalination system, an energy-recovery type incurve multiple acting pump is developed with integrated functions a high-pressure pump, energy recovery device booster pump. In order to determine its flow range suppress cavitation generation, mathematical model port plate established, combining realizable k-ɛ turbulence Schnerr-Sauer obtain internal field characteristics plate. The effects different rotational speeds inlet pressures on were analyzed gas volume fraction distribution rules. design based pressure mass monitoring test verify numerical calculation results. results show that experimental simulation data match accurately, increase in speed decrease pressure, phenomenon becomes serious coefficient reduced. optimal working this paper 520 r/min output 200 L/min. Compared conventional products, reduced by more than 40%.