Absorption refrigeration system, method and apparatus for external circulation of absorbent

Abstract

Abstract AN ABSORPTION REFRIGERATION METHOD COMPRISING PASSING A REFRIGERANT THROUGH AN EVAPORATION ZONE HAVING A PRESSURE THEREIN LOW ENOUGH TO PRODUCE EVAPORATION OF AT LEAST A PORTION OF THE REFRIGERANT AND CONSEQUENT COOLING OF THE UNVAPORIZED PORTION THEREOF, HEAT EXCHANGING THE UNVAPORIZED REFRIGERANT WITH A MEDIUM SOUGHT TO BE COOLED, THEREBY WARMING THE REFRIGERANT, AND RETURNING THE SO WARMED REFRIGERANT TO THE EVAPOATION ZONE, WITHDRAWING AT LEAST A PORTION OF THE VAPORIZED REFRIGERANT THROUGH A MIST ELIMINATOR INTO A CLOSED ABSORPTION ZONE IN COMMUNICATION WITH SAID EVAPORATION ZONE, SPRAYNG A LIQUID ABSORBENT INTO THE ABSORPTION ZONE TO ABSORB THE VAPORIZED REFRIGERANT, CIRCULATING THE PARTIALLY SPENT LIQUID ABSORBENT EXTERNALLY OF THE ABSORPTION ZONE IN INDIRECT HEAT EXCHANGE RELATION WITH A COOLING MEDIUM TO EXTRACT THE HEAT OF CONDENSATION AND ABSORPTION AND SPRAYING THE COOLED PARTIALLY SPENT ABSORBENT BACK INTO THE VAPOROUS REFRIGERANT, THE RATE OF PARTIALLY SPENT ABSORBENT SPRAYED BACK INTO THE ABSORPTION ZONE IS CONTROLLED AS A FUNCTION OF EVAPORATION ZONE TEMPERATURE THUS ELIMINATING THE TIME LAG GENERALLY ASSOCIATED WITH MOST ABSORPTION REFIRGERATION CONTROL SCHEMES. THE INVENTION ALSO PROVIDES A SYSTEM WHEREBY THE ABOVE ABSORPTION REFIRGERATION METHOD MAY BE CARRIED OUT.

Inventors

• 👤 Judson S Swearingen

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