本文介绍了采用水源热泵的低温地热水两级利用采暖方案在改造工程中的应用。根据供热系统的实际运行特点,提出了单位热成本的概念,在此基础上,使用BIN法对水源热泵采暖方案的全年运行能耗进行了计算并与燃气锅炉方案做了对比。分析结果表明,采用水源热泵的低温地热水两级利用采暖系统运行经济节能,具有明显的优越性。 This article describes the use of water source heat pump low temperature geothermal water two heating program in the renovation project. According to the actual operation characteristics of heating system, the concept of unit heat cost was put forward. On this basis, the BIN method was used to calculate the annual operating energy consumption of water source heat pump heating scheme and compared with the gas boiler scheme. The results show that the use of water source heat pump low temperature geothermal water heating system using two economical and economical operation, with obvious advantages.