What is a rotary screw air compressor?

A rotary screw air compressor is one of the two types of positive displacement gas compressors. It uses two rotors to create the pressure needed for air compression. They are one of the easiest types of air compressors to use and maintain. The other type of positive displacement compressor is the reciprocating or piston compressor.

How does a dehumidifier work?

The dehumidifier uses the cold coils (evaporator) to remove moisture from the air. In turn, it uses hot coils (condenser) to reheat to room temperature. If you can create the airflow between these cold and hot coils, you have yourself a dehumidifier. That’s why the key to how a dehumidifier works is understanding how refrigerant works.

What is a screw compressor?

A screw compressor is a type of positive displacement compressor that uses two spiral screws to compress the gas. It uses a positive displacement rotary mechanism for the compression of gas. The screw compressor has two below given meshing spiral screws (called rotors) for the compression process:

What is a screw compressor rotor?

The screws of the compressors are also known as rotors. A screw compressor has two rotors (male and female rotors) for the compression of the gas. The male rotor is connected with a shaft. As the shaft rotates, it also rotates the male rotor. The male and female rotors mesh with each other.

What is a liquid injected screw compressor?

In liquid-injected screw compressors, a liquid is injected into the compression chamber and often into the compressor bearings. Its function is to cool and lubricate the compressor element’s moving parts, to cool the air being compressed internally, and to reduce the return leakage to the inlet.

What are asymmetric screw compressors?

The first twin screw compressors had asymmetric rotor profile and did not use any cooling liquid inside the compression chamber. These were called oil-free or dry screw compressors. Modern, high-speed, oil-free screw compressors have asymmetric screw profiles, resulting in significantly improved energy efficiency, due to reduced internal leakage.