What is the working principle of compressor pumps?
There are two types of pumps which use compressed air. One is Air-Operated Diaphragm pumps (AODs). Here air is used to activate and operate the reciprocating mechanism, to make the diaphragm pumps work. The other use of compressed air is in jet pumps. Here compressed air is fed to the inlet of the nozzle. Across the nozzle, the pressure energy of compressed air gets converted to kinetic energy. Alongside the pressure energy become vacuumous. This helps the liquid in the bore to be sucked to the vacuumous condition at the mouth of the nozzle. The high velocity of air also helps to carry the sucked liquid to be lifted to the suction of the main pump. In conventional jet pumps, a tapping drawn from the high pressure delivery side of the pump serves the same purpose as of the compressed air. Whether with compressed air or with tapping from delivery side, the jet pump is never an energy-efficient way of drawing liquid from a depth. Jet pumps with compressed air would not need tapping from t
