More and more people use the underground water source heat pump technology that supply cleaning energy. Due to the remarkable economic benefits and social value of underground water source heat pump technology, there have been twelve heat pump projects in Tianjin. But the technology of underground water source heat pump has some deficiencies in exploiting underground water resources, especially artificial recharge effects, which is the main reason why government decision-maker hesitates to popularize this technology. In this paper, through the analysis about the design of underground water source heat pump system in Hong-Guang Middle School, and other heat pump engineering systems, the author studies some key problems about exploiting underground water resources by underground water source heat pump technology, and brings forward some rational and feasible technology schemes in economy.

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