Screw compressor is one of the most common and widely used types of compressors for use in the refrigeration cycle of air conditioning systems. Each refrigeration cycle includes four main components: compressor, condenser, expansion valve and evaporator. In these four components, the compressor is the main role and the beating heart of the system. Every refrigeration cycle uses a compressor to compress and raise the temperature and pressure of the refrigerant. Various types of compressors can be used in this cycle, including reciprocating rotary scroll and centrifugal compressors.
How is the capacity control in the screw compressor?
Screw compressors usually perform capacity control operations through the slide valve that is built into it. In their simple type, this slide valve can usually be placed in 3 or 4 places, and in fact, the capacity control of each compressor makes 3 or 4 stages.
But there are also linear screw compressors where this slide valve can be continuously fixed in any place and allow refrigerant to enter the compressor as much as the required capacity. These compressors are called linear and have a very positive effect on the secondary electricity consumption of the device. During the working stages of a screw compressor, oil is used for cooling and lubrication of the compressor parts, and of course, after that, this oil is separated from the refrigerant. to enter the next stages of the refrigeration cycle.
What are the main parts of the screw compressor?
🔹Rotors: There are two male and female rotors in a screw compressor. Usually the female rotor is bigger and is rotated by the male rotor. will be This valve can be pneumatic or electric.