GEOTHERMAL HEAT EXCHANGER - JFE STEEL CORP

Title:

GEOTHERMAL HEAT EXCHANGER

Document Type and Number:

Japanese Patent JP2013250040

Kind Code:

A

Abstract:

To provide a geothermal heat exchanger heat exchange efficiency of which can be restrained from degrading without separately arranging heat insulating material.

A geothermal heat exchanger 10 is embedded underground and used, and includes circulating water piping 30 comprising an outgoing pipe 31 causing circulating water to flow from a pile head side of a steel pipe pile 11 to a pile tip side, a return pipe 32 causing the circulating water reaching the pile tip side through the outgoing pipe 31 to flow to the pile head side from the pile tip side, and a return part 33 for connecting the outgoing pipe 31 to the return pipe 32 at a deep underground part. The return pipe 32 has a section 32a on the pile head side located in a range of the preset depth from the ground surface, and a section 32b on the pile tip side located in the range from a lower end of the section 32a of the pile head side to the deep underground part. The inside diameter of the section 32a on the pile head side is equal to an inside diameter of the section 32b on the pile tip side, and an outside diameter of the section 32a on the pile head side is larger than an outside diameter of the section 32b on the pile tip side.

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JP5100219	Underground equipment in groundwater heat utilization ground equipment
WO/2009/103149	A METHOD AND SYSTEM FOR INSTALLING GEOTHERMAL HEAT EXCHANGERS, ENERGY PILES, CONCRETE PILES, MICROPILES, AND ANCHORS USING A SONIC DRILL AND A REMOVABLE OR RETRIEVABLE DRILL BIT
JPS57184885	HOT WATER PRODUCING PLANT

Inventors:

SAKAMOTO YOSHIHITO
HAYASHI MASAHIRO

Application Number:

JP2012127428A

Publication Date:

December 12, 2013

Filing Date:

June 04, 2012

Export Citation:

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Assignee:

JFE STEEL CORP

International Classes:

F24J3/08; F28D15/02

Domestic Patent References:

JPH11182943A	1999-07-06
JPS5756680A	1982-04-05
JPS59157443A	1984-09-06
JPS60162107U	1985-10-28
JP2012026723A	2012-02-09
JP2012013004A	2012-01-19
JP2004169985A	2004-06-17

Foreign References:

US20090014163A1	2009-01-15
US20110061382A1	2011-03-17
DE102009040476A1	2011-03-10
US5862866A	1999-01-26
US3561531A	1971-02-09

Attorney, Agent or Firm:

Tetsuya Mori
Megumi Konishi
Hide Tanaka Tetsu
Ichi Hirose
Toru Miyasaka

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