High-efficiency absorption heat pump system having increased utilization rate of waste heat source

Abstract

The present invention relates to a high-efficiency absorption heat pump system having increased utilization rate of a waste heat source, including: an evaporator to which a waste heat source inlet line through which a waste heat source inflows, is connected to absorb thermal energy from the waste heat source, and to which a refrigerant inlet line for supplying a refrigerant is connected; an absorber connected to the evaporator such that steam evaporated in the evaporator is fed thereto, and to which a hot water inlet line and a hot water outlet line extending from a flash tank are connected; a high temperature regenerator through which a waste heat source divide line branching off from the waste heat source inlet line passes, which heats LiBr solution fed to the absorber and regenerates the same, and is provided with a concentrated solution line for supplying the LiBr solution to the absorber; an auxiliary absorber to which the steam evaporated from the high temperature regenerator is transferred and which is connected to the high temperature regenerator in order to cool the steam and circulate the same; a low temperature regenerator to which an intermediate solution line is connected to supply the LiBr solution to the high temperature regenerator, through which a waste heat source return line extending from the evaporator passes, and to which a diluted solution line extending from the absorber is connected; a condenser through which a chilled water inlet line for supplying the cooling water passes such that the steam evaporated from the low temperature regenerator is fed and cooled therein, and which is connected to the low temperature regenerator; and an auxiliary regenerator to which an auxiliary solution line is connected to supply auxiliary LiBr solution to the auxiliary absorber, through which the waste heat source divide line passes, and to which an auxiliary diluted solution line extending from the auxiliary absorber is connected.

1 . A high-efficiency absorption heat pump system having increased utilization rate of a waste heat source, comprising:
 an evaporator to which a waste heat source inlet line  12  through which a waste heat source inflows, is connected to absorb thermal energy from the waste heat source, and to which a refrigerant inlet line for supplying a refrigerant is connected;   an absorber connected to the evaporator such that steam evaporated in the evaporator is fed thereto, to which a hot water inlet line and a hot water outlet line extending from a flash tank are connected;   a high temperature regenerator through which a waste heat source divide line branching off from the waste heat source inlet line passes, which heats LiBr solution fed to the absorber and regenerates the same, and is provided with a concentrated solution line for supplying the LiBr solution to the absorber;   an auxiliary absorber to which the steam evaporated from the high temperature regenerator is transferred and which is connected to the high temperature regenerator in order to cool the steam and circulate the same;   a low temperature regenerator to which an intermediate solution line is connected to supply the LiBr solution to the high temperature regenerator, through which a waste heat source return line extending from the evaporator passes, and to which a diluted solution line extending from the absorber is connected;   a condenser through which a chilled water inlet line for supplying the cooling water passes such that the steam evaporated from the low temperature regenerator is fed and cooled therein, and which is connected to the low temperature regenerator; and   an auxiliary regenerator to which an auxiliary solution line is connected to supply auxiliary LiBr solution to the auxiliary absorber, through which the waste heat source divide line passes, and to which an auxiliary diluted solution line extending from the auxiliary absorber is connected.   
     
     
         2 . The system according to  claim 1 , wherein the concentrated solution line passes through a high temperature solution heat exchanger disposed in the diluted solution line. 
     
     
         3 . The system according to  claim 1 , wherein the intermediate solution line passes through a low temperature solution heat exchanger installed in the diluted solution line. 
     
     
         4 . The system according to  claim 1 , wherein the auxiliary solution line passes through an auxiliary solution heat exchanger disposed in the auxiliary diluted solution line.