ABSORPTIVE-DIFFUSIVE REFRIGERATING UNIT Russian patent published in 2003 - IPC

FIELD: domestic refrigerating equipment. SUBSTANCE: absorptive-diffusive refrigerating unit has three-channel heat-exchanger with strong and weak solutions allowing weak solution temperature potential to be effectively used for preheating of strong solution before evaporation thereof. Heat- exchanger housing is mounted on casing so as to define gaps, and its upper end is joined to casing in sealing relationship. Upper end of lift pipe of steam-lift pump may be inserted into casing steam cavity and lower end may be connected so as to define hydraulic gate for adsorber vessel. Upper part of gap between casing and housing of heat exchanger may be communicated to absorber through weak solution discharge T-pipe. EFFECT: increased efficiency by reduced cost of refrigerating unit for cold production. 3 cl, 1 dwg