Investigation of Booster Multi-Stage Centrifugal Pump's Characteristics When Pumping-Out of Water-Gas Mixtures

The investigation of multistage centrifugal booster pump performance when delivering water-gas mixtures in configuration water jet gas pump at excess pressure intake chamber. As a dispersing device for a water-gas mixture used WJGP of various designs flow path with diaphragm nozzles having rectangular edges were used. When gas supplies at excess pressures from 0.2 to 0.37 MPa into intake chamber of water jet gas pump, it promotes the formation of a finely dispersed water-gas mixture, which leads to reduce the effect of free gas on the performance of the booster pump's. When intake pressure of pump rises, the stability of the water-gas mixture also increases. When an increase in pressure at the inlet of the booster pump, the curves of the shaft rotation frequency-the input gas content acquire a flatter form. © Published under licence by IOP Publishing Ltd.