To provide a method and structure for burying a ground heat exchanger tube that can sufficiently use ground heat, has no risk of damage to a heat exchange tube, and is easy in the replacement and maintenance of the heat exchanger tube.
A tubular network 3 that is a tubular molding of three-dimensionally meshed threads of thermoplastic resin having voids connecting inner and outer surfaces is buried with a space to surround a heat exchanger tube 2 to be buried, and the heat exchanger tube 2 is inserted into the tubular network 3. Groundwater A passing through the meshes of the tubular network 3 flows freely in the space surrounding the heat exchanger tube 2 and contacts with the heat exchanger tube 2 over a wide contact area, thus enhancing the efficiency of heat exchange with the groundwater A to sufficiently use ground heat. The tubular network 3 can prevent the surrounding ground from being collapsed to protect the heat exchanger tube 2 from damage and facilitate the replacement and maintenance.
OHASHI YASUHARU
ITAGAKI REIJI
MORINAGA KEI
MORINAGA EIJI
PLANNING KK E
MORINAGA KOMUTEN CO LTD
KIDOH TECH CO LTD
| JPH09291779A | 1997-11-11 | |||
| JP2005337590A | 2005-12-08 | |||
| JP2006214241A | 2006-08-17 | |||
| JP2007218024A | 2007-08-30 |
Takayoshi Tagawa
Higashio Masahiro