| 摘要 |
<p>The present invention provides a high-efficiency geothermal heat pump system. The present invention includes an underground heat exchanger that recovers geothermal heat through heat exchange with underground water which is supplied by a pump and circulates along an underground water line; a first heat exchanger where heat exchange occurs between a refrigerant, which circulates along a refrigerant line in which a refrigerant flow direction is converted depending on a cooling or heating condition, and the underground water; a second heat exchanger where heat exchange occurs between the refrigerant that circulates along the refrigerant line and water that circulates along a pipe which is connected from the outside; a compressor that compresses the refrigerant which circulates along the refrigerant line into high pressure; an expansion valve that throttles the refrigerant which circulates along the refrigerant line into low pressure; and a third heat exchanger where heat exchange occurs between underground water that bypasses along a first bypass line which is connected to the underground water line and a refrigerant that bypasses along a second bypass line or a third bypass line which is connected to the refrigerant line. The underground water that circulates along the first bypass line bypasses to the third heat exchanger side at a front end of the first heat exchanger and flows onto the first heat exchanger side after heat exchange with the refrigerant.</p> |
