Pump

A pump is a mechanical device that transports or pressurizes fluids. It transfers the mechanical energy or other external energy of the prime mover to the liquid, increasing the energy of the liquid. The pump is mainly used to transport water, oil, acid-base liquid, emulsion, suspended lotion, liquid metal and other liquids, as well as liquid, gas mixture and liquid containing suspended solids. Pumps can usually be classified into three types based on their working principles: positive displacement pumps, power pumps, and other types of pumps. In addition to classification based on working principles, it can also be classified and named according to other methods. For example, according to the driving method, it can be divided into electric pumps and hydraulic pumps, etc; According to structure, it can be divided into single-stage pumps and multi-stage pumps; According to their purposes, they can be divided into boiler feed pumps and metering pumps, etc; According to the properties of the transported liquid, it can be divided into water pumps, oil pumps, and mud pumps. According to the presence or absence of a shaft structure, it can be divided into linear pumps and traditional pumps. Water pumps can only transport fluid based logistics and cannot transport solids.