The liquid flow rate of air-lifting pump, designed for aqueous phase feeding,organic phase feeding and aqueous phase dischar- ging,increases linearly with air flow rate within experimental range,and the submerged ratio of the air-lifting pump for aqueous phase discharging is linear with the holdup of the pulse.

Since the old liquid flow detector had the disadvantages of simple function,low precision and complicated operating,the new style of on-line liquid flow measurement equipment with high precision and intelligence was developed to meet the actual demand.