| 申请日期 | 2025-09-19 | 申请号 | KR1020090090319 |
| 公开（公告）号 | KR1020090112612A | 公开（公告）日 | 2009-10-28 |
| 公开国别 | KR | 申请人省市代码 | 全国 |
| 申请人 | KANG YOUNG JU | ||
| 简介 | PURPOSE : An underground exchanging tube well is provided to reduce the heating cost for a vinyl house by pulling up thermal water without a power unit. CONSTITUTION : An underground exchanging tube well comprises an underground pipe(1) and a main injecting pipe. A re-cycling control device is consisting of a water injection valve(3), a temperature sensor(5), a water tank(6), a water level check sensor(7), a cyclic motor(8) and a recirculation water valve(9). | ||
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