| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water pumping type heat exchange device that effectively utilizes groundwater pumped up from a small well, and has high heat exchange efficiency in a limited space.SOLUTION: In a water storage tank 42 storing groundwater pumped up from a well 2, a heat exchange sheet 43 in which a utilization side heat medium is circulated through circulation means 7 is stored in a state of being wound into a roll shape.</p> |
