Abstract:How to realize rational development and efficient utilization of geothermal resources and realize the balanced and sustainable development and utilization mode of geothermal resources is the key in geothermal resources development and utilization areas. Based on monitoring data of mining and recharge in a typical residential district of Qingyun county (hereinafter referred to as area A) during a heating season, the changes of water temperature, exploitation amount, recharge amount, water level and recharge rate have been summarized in this paper. Through data analysis and investigation, it is regarded that there are many problems in Qingyun recharge project, such as high temperature of geothermal tail water, low efficiency of heat utilization, pipeline corrosion caused by direct recharge of geothermal tail water. In view of the two modes of floor radiation and heating with heating sheets, some suggestions for improving heat transfer technology and increasing heat pump units have been put forward. It can not only improve the heat utilization efficiency, but also ensure the heating effect and avoid equipment corrosion. It has certain guiding significance for upgrading and renovating the geothermal heating project in Qingyun county.
