Title:
二重管構造の地中熱交換器の製造方法
Document Type and Number:
Japanese Patent JP5780128
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing an underground heat exchanger with high leakage resistance by making it possible to fuse and bond a pipe end of an outer pipe into which an inner pipe is inserted and a lid member to which the pipe end of the inner pipe is inserted and fixed from the inside of the outer pipe.SOLUTION: In a method for manufacturing an underground heat exchanger of a double pipe structure, the heat exchanger has an outer pipe 30 of thermoplastic resin buried in the ground, a lid member of thermoplastic resin fused and bonded one pipe end of the outer pipe and sealing the pipe end, and the inner pipe 41 fixed to the lid member with the pipe end inserted into a through-hole bored in the lid member from the inside of the outer pipe while being inserted into the outer pipe, wherein a heat medium flows into the outer pipe and the inner pipe. The method includes a lid member fusing and bonding step of water-tightly sealing the one pipe end by fusing and bonding the lid member to which the pipe end of the inner pipe is fixed to the one pipe end of the outer pipe with the inner pipe inserted into the outer pipe.
Inventors:
Kaneko Tadashi
Yasuyuki Everyda
Kenji Mioda
Yasuyuki Everyda
Kenji Mioda
Application Number:
JP2011253099A
Publication Date:
September 16, 2015
Filing Date:
November 18, 2011
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
F24J3/08; F28D7/12
Domestic Patent References:
| JP2011007446A | ||||
| JP2005069508A | ||||
| JP50032538Y1 | ||||
| JP2008292107A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation