Absorption heat pump and method for controlling the same

Abstract

An absorption heat pump and controlling methods thereof for utilizing exhaust heat to obtain high- and low-temperature fluids. The absorption heat pump comprises: a regenerator,to which exhaust heat is supplied to evaporate and isolate a refrigerant from a refrigerant liquor; a condenser,for condensing refrigerant vapor generated by the regenerator,; a first evaporator,in which refrigerant liquor supplied from the condenser,is heated by exhaust heat for evaporation; a first absorber,in which the refrigerant vapor evaporated in the first evaporator,is absorbed into an absorbent supplied from the regenerator,; a second evaporator,in which refrigerant liquor supplied from the condenser,takes heat away from water for evaporation, the water flowing through a heat exchanger pipe,A; and a second absorber,to which part of an absorbent returned from the first absorber,to the regenerator,is supplied so that the absorbent absorbs the refrigerant vapor evaporated in the second evaporator,before being returned to the regenerator,. The absorption heat pump supplies hot water and chilled water through a hot water pipe,and a chilled water pipe,, respectively. The amount of the cooling water supplied to the second absorber,, the amount of the refrigerant liquor distributed in the second evaporator,, and the like are controlled on the basis of the chilled water's temperature detected by a temperature sensor S