The invention discloses a geothermal single-well reinforced heat exchange
system. The
system comprises an artificial
porous system arranged in the middle of an underground compact rock layer, a heat-taking heating
assembly arranged on the ground surface and an underground heat-collecting
assembly arranged underground; the underground heat-collecting
assembly comprises a geothermal well penetratingthrough the compact rock layer and the artificial
porous system which are arranged underground, and a heat preservation
pipe arranged in the middle of the geothermal well; and a
metal well wall is adopted for the geothermal well, a water outlet channel is formed in the heat preservation
pipe, an annular space between the heat preservation
pipe and the
metal well wall forms a water
inlet channel,the heat preservation pipe is in communication with a well mouth and a well bottom of the geothermal well, and an upper screen pipe and a lower screen pipe are arranged at the part, at the artificialporous
system, of the
metal well wall. According to the geothermal single-well reinforced heat exchange system, through the reinforced heat exchange of the artificial
porous system, the output power of the geothermal single well can be greatly improved, so that the situation that dry holes cannot be used without water is avoided, the
utilization rate of
punching is effectively improved, and the investment risk of enterprises is reduced.