Current annual production of screw compressors for refrigeration and air conditioning applications is approximately 140,000 units, more than 10-fold the annual production volume of centrifugal compressors. Screw compressor production has more than doubled over the past 10 years. Looking back over the history of large-capacity air conditioning equipment, the centrifugal chiller has maintained its status as the main stream of commercial and industrial air conditioning since Dr. Willis Carrier first commercialized it in 1922. Now, however, screw compressors have also come to play a key role rivaling centrifugal compressors of medium- and large-size air conditioning chillers and refrigeration equipment. At present, major air conditioning and refrigeration equipment manufacturers around the world manufacture their own screw compressors. In addition, almost all compressor manufacturers that have traditionally produced and sold reciprocating compressors now also produce screw compressors.
展开▼
