A water pump is a machine that transports or pressurizes liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal.
It can also transport liquids, gas mixtures and liquids containing suspended solids. The technical parameters of pump performance are flow, suction, lift, shaft power, water power, efficiency, etc.; according to different working principles, they can be divided into volumetric pumps, vane pumps and other types. Volumetric pumps use the changes in the volume of their working chambers to transfer energy; vane pumps use the interaction of rotating blades and water to transfer energy. There are centrifugal pumps, axial flow pumps and mixed flow pumps.
1. Positive displacement pump: The use of periodic changes in the volume of the working chamber to deliver liquid.
2. Vane pump: use the interaction of vane and liquid to deliver liquid.
