The entire air compression system and gas supply system typically include the following core equipment, classified by function as follows:

1 Air compression equipment
Air compressor host: the core equipment that compresses air through mechanical motion. Common types include screw type, piston type, centrifugal type, etc.
Drive device: Electric motor (most commonly used) or diesel engine, providing power to the compressor.
Air intake filtration device: filters dust and impurities in the air to protect the internal components of the compressor.

2 Compressed air treatment equipment
Aftercooler: Reduce the temperature of compressed air to condense water vapor for subsequent separation.
Gas liquid separator: Separate impurities such as moisture and oil from compressed air.
Drying machine: removes moisture from compressed air. Common types include refrigerated drying machines and adsorption drying machines.
Filter: Further filter oil mist, solid particles, etc. in compressed air, classified into primary and precision levels according to accuracy.

3 Storage and transportation equipment
Gas storage tank: stabilizes air pressure, stores compressed air, and buffers system pressure fluctuations.
Gas pipeline: connects various equipment and transports compressed air, mostly made of stainless steel, seamless steel pipe, or specialized plastic pipeline.
Valves and instruments: including globe valves, safety valves, check valves, pressure gauges, pressure sensors, etc., used to control airflow and monitor system status.

4 Auxiliary and control system
Lubrication system (partial compressor): Provides lubrication for moving parts, such as the lubricating oil circulation system of screw compressors.
Control system: PLC or intelligent control module, realizing automatic management of compressor start stop, pressure regulation, fault alarm, etc.
Sewage discharge device: Regularly discharge the separated oil-water mixture to keep the system clean.

These devices work together to achieve a complete process from air intake, compression, purification to stable gas supply, and are widely used in industries, healthcare, pneumatic tools, and other fields.