HEAT PUMP SYSTEM AND COOLING SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a heat pump system capable of reducing a temperature difference between the evaporator side and the condenser side, which is caused when heat is drawn by a heat pump, and achieving good efficiency.SOLUTION: A first heat pump 2 includes: a first evaporator 7; and a second evaporator 8. The second heat pump 3 is connected with the first heat pump 2 through an evaporator 12 serving as the first evaporator 7. A heat source fluid 16 is sequentially passed through the second evaporator 8 of the first heat pump 2 and an evaporator 14 of the second heat pump 3. A heated fluid 9 is heated without causing phase change in a condenser 5 of the first heat pump 2.