METHOD OF PRODUCTION OF REFRIGERATION BY STEAM-JET EJECTOR REFRIGERATING PLANT AND STEAM-JET EJECTOR REFRIGERATING PLANT FOR REALIZATION OF THIS METHOD Russian patent published in 1997 - IPC

FIELD: refrigerating engineering; cooling of rooms and air-conditioning systems. SUBSTANCE: method consists in evaporation of refrigerant in evaporator and removal of heat from object being cooled, circulation of refrigerant in closed loop at ejector compression, condensation, capillary compression and evaporation of part of flow accompanied by production of working steam for ejector. Prior to feeding the liquid refrigerant flow to capillary pump, it is subjected to subcooling due to heat exchange with vapor of low-temperature refrigerant after evaporator or with part of liquid refrigerant throttled after condensation. Refrigerating plant used for realization of this method is provided with liquid subcooler whose one chamber is connected to line supplying the liquid refrigerant from condenser to capillary pump and other chamber is connected to line feeding the low-temperature vapor from evaporator to ejector; second chamber may be also brought in communication with line feeding the liquid refrigerant from condenser to evaporator after throttle valve and with line feeding the low-temperature vapor from evaporator to ejector. Other chamber of liquid subcooler may be also brought in communication with line feeding the liquid refrigerant from condenser and with suction nozzle of second ejector through additional throttle valve which is necessary for chilling the refrigerant. Working nozzle of second ejector is connected to outlet of capillary pump and delivery nozzle is connected to condenser inlet. EFFECT: enhanced efficiency. 4 cl, 3 dwg