Screw compressor structure
The screw compressor is composed of a pair of parallel and intermeshing female and male screws. It is the most widely used rotary compressor. There are two types of single screw and twin screw. Generally speaking, screw compressor refers to twin screw compressor.
There are two types of screw compressors, dry type and wet type. The so-called dry type means that no liquid is sprayed in the working chamber, and the compressed gas will not be contaminated. The wet type means that lubricating oil or other liquid is sprayed into the working chamber to cool the compressed gas. Improve the seal, and can lubricate the female and male rotors and bearings to realize its own transmission, and then remove the oil or other liquid impurities in the compressed air through a high-precision filter to obtain a higher quality compressed gas. Dry type is generally used in occasions where the gas quality is extremely high and the gas volume is not required. The dry screw has a complex structure, difficult to maintain, high noise, and high cost; the wet type is the most widely used, simple structure, easy to maintain, stable and reliable, Commonly used in power engineering.
