Title:
二重管構造の地中熱交換器
Document Type and Number:
Japanese Patent JP5857664
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enhance leakage resistance of an underground heat exchanger of a double pipe structure.SOLUTION: An underground heat exchanger of a double pipe structure is constituted by inserting an inner pipe into an outer pipe buried in the ground and flowing heat medium through the outer pipe and the inner pipe. The heat exchanger has the flexible outer pipe of thermoplastic resin arranged in an excavated hole in the ground, a cap member of thermoplastic resin water-tightly sealing a pipe end by being fused and bonded to one pipe end of the outer pipe, a lid member of thermoplastic resin water-tightly sealing the pipe end by being fused and bonded to the other pipe end of the outer pipe, and the flexible inner pipe of thermoplastic resin inserted into the outer pipe. The pipe end of the inner pipe is water-tightly fused and bonded to the lid member with the pipe end inserted into a through-hole forming a flow path of the heat medium bored in the lid member from the inside of the outer pipe.
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| JP2006266575 | HOUSE USING GEOTHERMAL HEAT |
| WO/2012/105134 | AIR-CONDITIONING SYSTEM UTILIZING UNDERGROUND HEAT AND SOLAR HEAT |
| WO/2011/005075 | HEAT EXCHANGER |
Inventors:
Kaneko Tadashi
Yasuyuki Everyda
Kenji Mioda
Yasuyuki Everyda
Kenji Mioda
Application Number:
JP2011253100A
Publication Date:
February 10, 2016
Filing Date:
November 18, 2011
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
F24J3/08
Domestic Patent References:
| JP20117446A | ||||
| JP5818087A | ||||
| JP2001108307A | ||||
| JP200569508A | ||||
| JP7269960A | ||||
| JP2008292107A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation