What are the types of air compressor

The types of air compressors can be classified from multiple dimensions. The following are some of the main classification methods and corresponding types:

classification by working principle:

volume type: By changing the volume of the working chamber to compress gas, including piston type, screw type (such as twin screw air compressor), scroll type, etc.

Power type (or turbine type): through the high-speed rotating impeller to make the gas speed, and then expand the deceleration, the kinetic energy into pressure energy, such as centrifugal air compressor.

Thermal type: Compressing gas through thermal energy conversion, this type is rare in practical applications.

Classified by lubrication method:

oil compressor: the use of lubricating oil to lubricate and cool the compression process.

Oil-free air compressor: avoid the use of lubricating oil to ensure the purity of compressed air, suitable for occasions with high air quality requirements.

By performance:

low noise air compressor: design pay attention to reduce the running noise.

Variable frequency air compressor: The operating frequency can be adjusted according to the demand to achieve energy saving.

Explosion-proof air compressor: suitable for flammable and explosive environment, with higher safety.

Classification by purpose:

power air compressor: mainly used to provide compressed air, conveying gas or increase gas volume.

Air compressor for refrigeration: used in refrigeration systems, such as refrigerators, air conditioners, etc.

Ventilation with air compressor: used for industrial and mining enterprises or civil buildings ventilation.

Special air compressor: air compressor for specific purposes such as sandblasting machine and injection molding machine.

Classification by form:

fixed air compressor: installed in a fixed position, not movable.

Closed air compressor: the whole machine is closed to reduce environmental pollution and noise.

Mobile air compressor: easy to move to different work locations.

In summary, there are many types of air compressors, and the selection of the appropriate air compressor needs to be determined according to the specific application scenario, work requirements and environmental conditions.