| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler feedwater system capable of efficiently heating boiler feedwater year-around at a time of heating the boiler feedwater by a heat pump, and reducing equipment cost and power consumption of the heat pump.SOLUTION: A boiler feedwater system 10 for feeding water to a boiler 1, comprises: a feedwater tank 12 capable of storing boiler feedwater supplied to the boiler 1; a boiler feedwater passage 30 for supplying the boiler feedwater stored in the feedwater tank 12 to the boiler 1; a heat pump 14 heating the boiler feedwater using cooling water discharged from a waste heat source 2 as a heating source; and a heat exchanger 16 for implementing heat exchange between the cooling water discharged from the waste heat source 2 and the boiler feedwater before being heated by the heat pump 14. |
