Air separation equipment​ refers to a device that uses air as raw material to separate various gases such as oxygen and nitrogen in the air by cryogenic separation or adsorption separation. The air separation plant is mainly composed of eight systems, namely compression system, purification system, refrigeration system, heat exchange system, rectification system, product conveying system, liquid storage system and control system.

The self-cleaning filter generally increases with the increase of gas volume, the number of filter cartridges increases and the number of layers is higher. Generally, it is arranged in two layers above 25000 and three layers above 60000; Generally, a single compressor needs to be arranged with a filter separately and at the upper air outlet at the same time.