crew refrigerating compressor water-chilling unit;compressor brine unit;ethanol unit;air-condition screw water-chilling unit;screw compressor;oil separator;oil cooler;economizer;evaporator;condenser;dring filter and so on;refrigerating pressure vessel, screw compressor unit, assistant equipments, screw alcohol unit, screw alkali lye unit, w-screw refrigerant comprew-sw-sor unit