A rotary screw compressor is a type of positive displacement compressor that uses a pair of meshing helical rotors to compress air. The compressor works by trapping air between the rotors and the compressor housing and then reducing the volume of the air as the rotors turn, increasing the air pressure and delivering compressed air.
Here is a step-by-step explanation of how a rotary screw compressor works:
The compressor draws in air through the inlet filter and into the compressor housing.
The air is then trapped between the male and female rotors and the compressor housing. The rotors rotate in opposite directions and the meshing of the helical rotors creates a seal that traps the air in the space between them.
As the rotors continue to rotate, the volume of the trapped air is reduced. This reduction in volume causes an increase in air pressure, which forces the compressed air through the discharge port and into the compressed air system.
To maintain the proper clearances between the rotors and the housing, the compressor uses bearings and a lubrication system. The bearings support the rotors and allow them to rotate smoothly, while the lubrication system helps to reduce friction and dissipate heat.
The compressed air then passes through the aftercooler, which removes any heat generated during the compression process, and then through the moisture separator, which removes any water vapor.
Finally, the compressed air is stored in a receiver tank where it can be used for various applications.
Overall, rotary screw compressors are known for their efficiency and reliability, making them a popular choice for industrial and commercial applications that require a continuous supply of compressed air