A water pump is a machine that conveys or pressurizes liquid. It transfers the mechanical energy or other external energy of the prime mover to the liquid so as to increase the energy of the liquid, which is mainly used for conveying liquid, including water, oil, acid and alkali liquid, emulsion, suspending emulsion and liquid metal.
It can also transport liquids, gas mixtures and liquids containing suspended solids. The technical parameters of pump performance include flow, suction head, head, shaft power, water power, efficiency, etc; According to different working principles, it can be divided into positive displacement pump, vane pump and so on. Positive displacement pump uses the change of its working chamber volume to transfer energy; Vane pump uses the interaction between rotating blades and water to transfer energy, including centrifugal pump, axial flow pump and mixed flow pump.
