REFRIGERATING MACHINE TEMPERATURE CONTROL SET Russian patent published in 1996 - IPC

FIELD: refrigerating engineering; transport facilities working with temperature control systems at storage and transportation of frozen products. SUBSTANCE: temperature control system of refrigerating machine has tight two-stage compressor 1, air-cooled condenser 5, throttling device made in form of capillary tube 15, evaporator 16 provided with deflecting system, multifunctional regenerative heat exchanger 7 and heat-insulated hollow frame made in form of air duct. Compressor 1 is provided with loop for inter-stage cooling of cooling agent which consists of air-cooled double-pipe heat exchangers 2 and 3 mounted in succession and expansion tank 4. Defrosting system consists of electric heating elements 19 located in section of evaporator 16 together with fan 17 having individual drive and in water condensate collecting and discharging sump. Shell of multifunctional heat exchanger 7 is made in form of double pipe whose inner pipe houses filter-drier, receiver and liquid cooling agent distributor, separator being arranged in inter-pipe space. Air-cooled condenser is provided with damper which is used to adjust amount of air flowing through condenser. EFFECT: enhanced reliability. 3 cl, 6 dwg