Screw compressor principle and structure

Screw compressor principle and structure content Screw compressor characteristics Screw compression principle DXS compressor structure Application of DXS compressor in YCWS unit Screw compressor characteristics

Characteristics of screw compressor -----Internal compression, forced exhaust ----Continuous gas transmission, stable pressure ----Exhaust volume does not change with exhaust pressure, no surge ---Spool adjustment, variable volume ratio, variable pressure ratio ---High speed, low exhaust temperature, high efficiency,

Compression principle Ideal gas state equation: PV=nRT Gas compression: ---Volume reduction --- increased pressure ---Temperature rise

Compression principle Primitive volume ---It is made of Yin-Yang rotor tooth surface, contact line, shell and end cover. ----As the turning angle gradually increases and then shrinks.

Compression principle Three main factors affecting the compression process - Rotor. Profile, twist angle, lead, speed --gap. Between the rotor, between the rotor and the body, the exhaust end face - Fuel injection. Oil quality, temperature, fuel injection

The role of fuel injection --cool down --lubricating --seal --Noise reduction DXS compressor structure DXS--Direct expansion screw Application: chiller, heat pump, industrial refrigeration