| 摘要 |
PROBLEM TO BE SOLVED: To obtain an absorption type heat pump device having a defrosting means for preventing the surfaces of fins of an evaporator from being frozen by water droplets. SOLUTION: An absorption type heat pump device 1 comprises a rectifying device 2 having a heating part and a regenerator 8, a liquefying condenser 3 for separated and vaporized refrigerant, an evaporator 4 for vaporizing liquefied refrigerant A by performing a heat exchange between the liquefied refrigerant A exhausted from the condenser 3 and outside air C and an absorber 5 for making the vaporized refrigerant A supplied from the evaporator 4 to react on absorbing solution B supplied from the rectifying device 2 and absorb the refrigerant A in the absorbing solution B and circulate the absorbing solution B absorbing the refrigerant A to the rectifying device 2. Thus, high temperature absorbing solution B returning to the absorber from the regenerator 8 is supplied to a defrosting piping 27 provided in the vicinity of the evaporator 4 through a communicating pipe 25 and a defrosting valve 26 so that condensate on the surfaces of the fins 24 of the evaporator 4 are prevented from sticking to and being retained on the surfaces of the fins 24 and being frozen due to the cooling fins 24 because of the vaporization of the low temperature refrigerant and then, the absorption liquid B is returned to the absorber 5.
|
