UNDERGROUND HEAT UTILIZATION SYSTEM AND OPERATION METHOD FOR UNDERGROUND HEAT UTILIZATION SYSTEM

To provide an underground heat utilization system and an operation method for the underground heat utilization system that cause clogging of a well to be restrained when an upper aquifer and a lower aquifer are utilized.SOLUTION: An underground heat utilization system comprises a first well comprisi...

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Hauptverfasser: SAI RINNICHI, YAMAGUCHI TORU, NAKASO YASUHISA, SAKAI MASANOBU, NAKAO MASAKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide an underground heat utilization system and an operation method for the underground heat utilization system that cause clogging of a well to be restrained when an upper aquifer and a lower aquifer are utilized.SOLUTION: An underground heat utilization system comprises a first well comprising a first upper opening part and a first lower opening part, and a second well comprising a second upper opening part and a second lower opening part. The underground heat utilization system also comprises a first pipe, a second pipe, a first heat exchanger, and a second heat exchanger. The underground heat utilization system can supply groundwater in an upper aquifer toward the second upper opening part from the first upper opening part via the first pipe, and can supply groundwater in a lower aquifer toward the first lower opening part from the second lower opening part via the second pipe.SELECTED DRAWING: Figure 1 【課題】上部帯水層及び下部帯水層の利用に際し、井戸の閉塞が抑制される地中熱利用システム及び地中熱利用システムの運転方法を提供する。【解決手段】地中熱利用システムは、第一上部開口部と第一下部開口部とを有する第一井戸と、第二上部開口部と第二下部開口部とを有する第二井戸と、を備える。地中熱利用システムは、第一配管と、第二配管と、第一熱交換器と、第二熱交換器と、をさらに備える。地中熱利用システムは、第一配管を介して、第一上部開口部から第二上部開口部へ向かって、上部帯水層の地下水を送水可能であり、第二配管を介して、第二下部開口部から第一下部開口部へ向かって、下部帯水層の地下水を送水可能である。【選択図】図1