Solution concentration control in absorption refrigeration systems

Abstract

Abstract AN ABSORPTION REFRIGERATION SYSTEM HAVING A CONCETRATION CONTROL TANK CONNECTED TO RECEIVE REFRIGERANT FROM A CONCENTRATION CONTROL CONDENSER WHICH CONDENSES VAPOR FORMED IN THE GENERATOR. A COOLING MEDIUM IS PASSED FIRST OVER THE ABSORBER, THEN OVER THE CONDENSER, AND FINALLY OVER THE CONCENTRATION CONTROL TANK TO PROVIDE A CONTROL PRESSURE THEREIN. A CONCENTRATION CONTROL PASSAGE, INCLUDING A DEPENDING LOOP, EXTENDS BETWEEN A REGION OF THE SYSTEM WHICH IS AT REFRIGERANT CONDENSER PRESSURE INTO THE CONCENTRATION CONTROL TANK. THE DIFFERENCE IN PRESSURE BETWEEN THE CONCENTRATION CONTROL TANK AND THE REFRIGERANT CONDENSER IS BALANCED BY A COLUMB OF LIQUID EXTENDING INTO THE CONCENTRATION CONTROL TANK. WHEN THE COOLING MEDIUM TEMPERATURE DROPS, THE DIFFERENCE IN PRESSURE BETWEEN THE CONCENTRATION CONTROL TANK AND THE REFRIGERANT CONDENSER IS REDUCED, WHICH CAUSES REFRIGERANT TO BE DISCHARGED FROM THE CONCENTRATION CONTROL TANK INTO THE STRONG ABSORBENT SOLUTION. CONVERSELY, WHEN THE COOLING MEDIUM TEMPERATURE RISES, THE DIFFERENCE IN PRESSURE BETWEEN THE CONCENTRATION CONTROL TANK AND THE REFRIGERANT CONDENSER INCREASES CAUSING THE REFRIGERANT, WHICH IS CONDENSED IN THE CONCENTRATION CONTROL CONDENSER, TO BE STORED IN THE CONCENTRATION CONTROL TANK. A VENT PASSAGE IS PROVIDED WITH A VALVE THEREIN FOR RAPIDLY DISCHARGING THE CONTENTS OF THE CONCENTRATION CONTROL TANK INTO THE STRONG SOLUTION CIRCUIT TO PROTECT AGAINST SOLIDIFICATION IN THE EVENT OF AN ELECTRICAL POWER FAILURE.

Inventors

• 👤 Louis H Leonard Jr
• 👤 William W Bell Jr

Bibliographic Details