A pump is a machine that transports liquids or pumps liquids. It transfers the mechanical energy or other external energy of the prime mover to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids, including water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid metal.
It can also transport liquids, gas mixtures, and liquids containing suspended solids. Pump performance of technical parameters are flow, suction, lift, shaft power, water power, efficiency, etc.; according to the different principles of work can be divided into volume pumps, vane pumps and other types. Displacement pump is to use its studio volume changes to transfer energy; vane pump is to use the rotating blade and water interaction to transfer energy, there are centrifugal pumps, axial flow pumps and mixed flow pumps and other types.
1, displacement pump: the use of working chamber volume changes in the period to transport liquid.
2,vane pump: the use of blades and liquid interaction to transport liquid.