1. Pump: It is a machine for conveying or pressurizing fluid.
2. Compressor: It is a driven fluid machine that lifts low-pressure gas into high-pressure gas.
Second, the function is different.
1. pump: the pump is mainly used to transport liquids such as water, oil, acid-base liquid, emulsion, suspension emulsion, liquid metal, etc. It can also transport liquids, gas mixtures and liquids containing suspended solids.
2. Compressor: the low-temperature and low-pressure refrigerant gas is sucked from the suction pipe, and the motor drives the piston to compress it, and then the high-temperature and high-pressure refrigerant gas is discharged to the exhaust pipe to provide power for the refrigeration cycle.
Third, the classification is different.
1. Pump: According to the working principle, pumps can usually be divided into three types: positive displacement pumps, power pumps and other types of pumps. According to the driving mode, it can be divided into electric pump and hydraulic pump. According to the structure, it can be divided into single-stage pump and multi-stage pump; According to the purpose, it can be divided into boiler feed pump and metering pump; According to the nature of the transported liquid, it can be divided into water pump, oil pump and mud pump.
2. Compressors: Compressors are divided into piston compressors, screw compressors, centrifugal compressors and linear compressors.
Baidu encyclopedia-compressor
Baidu encyclopedia-water pump