An air compressor is a device that increases the density of gas molecules to increase the pressure of compressed air. It is a power device that converts mechanical energy into gas pressure energy and is mainly used in industrial production, energy storage, and air separation units.

This device is driven by an electric motor and achieves gas compression through a volumetric (such as piston type, screw type) or velocity type (such as centrifugal type) structure. The working pressure range is usually 0.5-0.7 MPa. Piston compressors use the crankshaft to drive the piston and change the cylinder volume to complete gas intake and compression, while centrifugal compressors use kinetic energy conversion to achieve turbocharging. The high-pressure model adopts a multi axis turbine centrifugal design, with a maximum outlet pressure of 14MPa, suitable for 100000 level air separation units and 150MW scale energy storage systems. The selection should be based on the comprehensive calculation of output pressure and flow parameters according to the requirements of the pneumatic system, and pressure redundancy should be reserved.