Process and apparatus for simultaneous generation of hot and cold fluids in an absorption refrigeration system

Claim 1

A PROCESS FOR SIMULTANEOUSLY PRODUCING HEATING OF A SELECTED FLUID TO BE HEATED AND COOLING OF A SELECTED FLUID TO BE COOLED IN A MULTIPLE EFFECT ABSORPTION REFRIGERATION SYSTEM COMPRISING THE STEPS OF HEATING AN AQUEOUS SALT SOLUTION TO ITS VAPORIZATION POINT TO PRODUCE A PARTIALLY CONCENTRATED SALT SOLUTION AND WATER VAPOR AT A FIRST SELECTED PRESSURE, SEPARATING SAID WATER VAPOR FROM SAID PARTIALLY CONCENTRATED SALT SOLUTION IN A SEPARATING ZONE, WITHDRAWING AND COOLING SAID PARTIALLY CONCENTRATED SALT SOLUTION, CONDENSING WATER VAPOR IN A CONDENSING ZONE IN VAPOR COMMUNICATION WITH SAID SEPARATING ZONE BY INDIRECT HEAT EXCHANGE WITH SAID COOLED, PARTIALLY CONCENTRATED SALT SOLUTION PASSING FROM SAID SEPARATING ZONE CAUSING PARTIAL VAPORIZATION OF SAID PARTIALLY CONCENTRATED SALT SOLUTION AT SAID CONDENSING ZONE PRODUCING FURTHER CONCENTRATED SALT SOLUTION AND ADDITIONAL ZONE, PASSING A LOWER PRESSURE THAN IN SAID SEPARATING ZONE, A PASSING FLUID TO BE HEAT IN INDIRECT HEAT EXCHANGE RELATION TO SAID PARTIALLY CONCENTRATED SALT SOLUTION AND CONDENSING WATER VAPOR AT SAID CONDENSING ZONE TO EFFECT HEATING OF SAID FLUID TO BE HEATED, SEPARATING WATER VAPOR FROM SAID FURTHER CONCENTRATED SALT SOLUTION AT A SECOND SEPARATING ZONE, CONDENSING SAID LAST NAMED WATER VAPOR TO FORM A CONDENSATE IN A CONDENSING ZONE, AND PASSSURE THAN SAID FIRST-MENTIONED SEPARATING ZONE, AND PASSING SAID CONDENSATE INTO AN EVAPORATING ZONE MAINTAINED AT A LOWER PRESSURE THAN SAID SECOND SEPARATING ZONE AND VAPORIZING SAID CONDENSATE IN HEAT EXCHANGE RELATION WITH FLUID TO BE COOLED.