TRIPLE EFFECT TYPE ABSORPTION COOLING AND HEATING MACHINE CONTROL METHOD HAVING EXHAUST HEAT REGENERATOR AND TRIPLE EFFECT TYPE ABSORPTION COOLING AND HEATING MACHINE

PROBLEM TO BE SOLVED: To further enhance efficiency, by reducing a heat radiating loss of solution, while reducing motive power of an auxiliary machine, by arranging an exhaust heat regenerator in a triple effect type absorption cooling and heating machine. SOLUTION: This triple effect type absorption cooling and heating machine recovers and uses exhaust heat from an external part as a heating source. The exhaust heat regenerator 168 is arranged on this side of a low temperature regenerator 84 for increasing the concentration of an absorbing liquid by heating and evaporating a refrigerant absorbed in the absorbing liquid by heating the absorbing liquid. After operating a low temperature pump 82, an intermediate temperature pump 85 and a high temperature pump 93 for a specific time by confirming that heating combustion energy is not used in a low load operable only by the exhaust heat from the external part, operation of the intermediate temperature pump and the high temperature pump is stopped by detecting that the absorbing liquid temperature of a high temperature regenerator outlet part or an intermediate temperature regenerator outlet temperature of a refrigerator vapor drain is set to a preset value or less, and the absorbing liquid is heated and regenerated only by the exhaust heat regenerator just as singular effect cycle operation. COPYRIGHT: (C)2006,JPO&NCIPI