Screw refrigeration compressor works: screw refrigeration compressor and refrigeration compressor piston displacement type compressor belong, with the centrifugal refrigeration compressors also belong to Rotary. When the screw refrigeration compressor pressure ratio increases used refrigeration equipment, volumetric efficiency decreases little closer piston refrigeration compressor screw, screw refrigeration compressor that shows the typical characteristics of piston refrigeration compressor refrigeration equipment, On the other hand industrial refrigeration equipment, the operating speed screw refrigeration compressor tall display centrifugal refrigeration compressor characteristics. From this analysis, the screw refrigeration compressors are positive displacement rotary compressor. 3. Screw brine unit or process needs based on user needs, coolants using saline (sodium chloride or calcium chloride, calcium chloride solution is recommended). 4. Screw brine unit mainly by the screw refrigeration compressor, condenser, evaporator and the necessary control equipment and other components. Cooling water and chilled water inlet and outlet both with companion flange (threaded interface), to facilitate connecting the user system. Used refrigeration equipment, refrigeration Snow Dragon (certified), refrigeration equipment provided by the Dongguan City-long Refrigeration Electrical and Mechanical Equipment Engineering Co., Ltd. Dongguan City-long Refrigeration Electrical Equipment Engineering Co., Ltd. (www.dgxuelong.com) is Dongguan, heat, refrigeration and air conditioning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the Snow Dragon refrigeration leadership with the staff warmly welcome all inquiries negotiations to create a better future XUELONG refrigeration.