To provide an underground device capable of easily returning used underground water to the same aquifer, by using geothermal heat and underground water heat by using one casing (a well).
This underground device in a sealed circuit type aboveground facility 17 uses the underground water heat as a heat source by implanting the casing 1 reaching a water vein existing in the predetermined depth in the ground. The casing 1 is inserted and implanted in the ground in a state of immersing the sealed upper end to a predetermined depth on the ground surface or in the ground by arranging a strainer 6 having a sucking/draining opening at the peripheral surface of a predetermined position in the longitudinal direction. A forward pipe 2 and a return pipe 3 connected to the aboveground facility are inserted and arranged in the casing. An impervious pipe 4 of vertically dividing the inside of the casing is arranged in the range of the strainer part, and either of the forward pipe or the return pipe is arranged in an upper part space above the impervious pipe, and the other is arranged downward via the impervious pipe.
COPYRIGHT: (C)2007,JPO&INPIT
Jun Tateyama
Kiyomi now
Hiromasa Mizushima
Yoshihiro Mikami
| JP57104051A | ||||
| JP2003307089A | ||||
| JP52001702A | ||||
| JP9280689A | ||||
| JP6088327A | ||||
| JP7207716A | ||||
| JP9137972A | ||||
| JP2002054856A | ||||
| JP2004271129A |
| US4448237 |
Iwasakizaki Koji
Ishiwatari Eibo
Nakamura Masamichi