水环热泵辅助热源性能研究

The Performance Studies on Auxiliary Heat Source of the Water Loop Heat Pump

介绍了水环热泵空调系统各种辅助热源的形式,针对传统水环热泵空调系统采用高位能(电、燃气、油、煤等)通过锅炉(或换热装置)转变为循环水的低位能,再由室内水/空气热泵提升后向室内供热的不合理的用能方式,提出了由空气源热泵代替锅炉的空气源—水环复合热泵空调系统,对其冬季建筑物内外分区不同的冷热负荷比下运行的性能进行了研究,并和使用锅炉的传统水环热泵空调系统的能耗进行了比较,体现出空气源水环复合热泵空调系统具有较高的能效比.

The forms of different auxiliary heat sources in the air conditioning system of water loop heat pump are introduced. Aiming at the irrational traditional way of supplying heat, in which the high potential energy source （ electricity, gas, oil, coal, etc） is changed into the low potential energy of looping water by boiler （ or heat transfer installment ） and the looping water is heated by the indoor water/air source heat pump and then supplies energy to indoor units, the paper proposes the air source-water source hybrid heat pump system in which the boiler is replaced by air source heat pump, carries out the performance operated in the condition of different cold-and-hot load ratio of inside and outside building district in winter, and compares it with the energy consumption of traditional water loop heat pump in which the boiler was used. The results show that the energy efficiency ratio of the air conditioning system of air source-water source hybrid heat pump is higher.