JP2003262406A - Underground heat exchanger - Google Patents

Underground heat exchanger

Info

Publication number
JP2003262406A
JP2003262406A JP2002112699A JP2002112699A JP2003262406A JP 2003262406 A JP2003262406 A JP 2003262406A JP 2002112699 A JP2002112699 A JP 2002112699A JP 2002112699 A JP2002112699 A JP 2002112699A JP 2003262406 A JP2003262406 A JP 2003262406A
Authority
JP
Japan
Prior art keywords
heat
pipes
heat exchanger
underground heat
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002112699A
Other languages
Japanese (ja)
Inventor
Toru Mizukoshi
徹 水越
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ARIGA SAKUSEN KOGYO KK
Original Assignee
ARIGA SAKUSEN KOGYO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ARIGA SAKUSEN KOGYO KK filed Critical ARIGA SAKUSEN KOGYO KK
Priority to JP2002112699A priority Critical patent/JP2003262406A/en
Publication of JP2003262406A publication Critical patent/JP2003262406A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underground heat exchanger obtaining heat and cold at large heating values by achieving a higher efficiency of collecting heat than with conventional polyethylene underground heat exchanger. <P>SOLUTION: Straight pipes 1 of even number made from a material having a higher heat conductivity than polyethylene are connected together by curved pipes 2 and 3 to obtain a series of pipes, with the ends 6 and 7 of the pipes kept open. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】 【０００１】 【発明の属する技術分野】この発明は、効率的に地中熱
を採取するため、高熱伝導率材料を用い、かつ接触面積
を増大させた地中熱交換器に関するものである。 【０００２】 【従来の技術】従来より、採熱孔内に挿入する地中熱交
換器にはポリエチレン製のＵ字管もしくは二重Ｕ字管が
用いられていた。 【０００３】 【発明が解決しようとする課題】これには次のような欠
点があった。 イ．ポリエチレンの熱伝導率が地盤の熱伝導率より低い
ために、地中熱の熱運搬媒体への移動が阻害されてい
た。 ロ．地盤との接触面積が少ないため、管内の熱運搬媒体
に十分な熱量が与えられなかった。 ハ．イ・ロが原因となって採熱効率が低く抑えられてい
た。 本発明は、これらの欠点を解決するために発明されたも
のである。 【０００４】 【課題を解決するための手段】ポリエチレンより高熱伝
導率の材料でできた偶数本の直管（１）を平行に配置す
る。そして、相対する直管（１）の下端を曲管（２）で
結合する。さらに、全ての直管（１）と曲管（２）が一
連となるよう上端を曲管（３）で結合する。その際、一
連となる管の端部（６）・端部（７）は開放しておく。
本発明は、以上の構成よりなる地中熱交換器である。 【０００５】 【発明の実施の形態】以下、本発明の実施の形態につい
て説明する。 （イ）ポリエチレンより熱伝導率の高い銅・アルミニウ
ムなどで作られた直管（１）を偶数本互いに平行になる
よう配置する。管の径および使用本数は適宜決める。 （ロ）相対する各１対の直管（１）の下端を曲管（２）
で結合する。結合部（４）は密閉性を確保するため材料
に応じて溶接・ジョイントなどを適宜用いる。 （ハ）（ロ）で結合した複数組の直管（１）と曲管
（２）の全てが一連の管となるよう直管（１）の上端を
曲管（３）で結合する。結合部（５）は密閉性を確保す
るため材料に応じて溶接・ジョイントなどを適宜用い
る。一連となる管の端部（６）・端部（７）は結合せず
開放しておく。本発明は以上のような構造でこれを使用
するときは、地盤（１３）に掘削した採熱孔（９）に本
発明の地中熱交換器（８）を挿入して用いる。本発明の
地中熱交換器（８）の開放した端部（６）・端部（７）
の一方に熱運搬媒体往路（１０）となる管、もう一方に
熱運搬媒体復路（１１）となる管を接続し、水や不凍液
を循環させる。孔内（１２）はセメントや砂利などで充
填する場合と地下水で満たされている場合がある。熱運
搬媒体往路（１０）から本発明の地中熱交換器（８）に
流入した水や不凍液は、高熱伝導率の管を通して速やか
に地盤の温熱または冷熱によって加熱・冷却される。ま
た、高熱伝導率の管の延長を長くとることにより地盤と
の接触面積が増大し、効率的に熱交換が行われる。熱交
換された水や不凍液は熱運搬媒体復路（１１）から取り
出され温熱源・冷熱源として利用される。 【０００６】 【発明の効果】本発明を使用することによって、従来の
ポリエチレン製の地中熱交換器に比べ高い採熱効率が得
られ、大きな熱量の温熱・冷熱の採取が可能となる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground heat exchange using a material having a high thermal conductivity and having an increased contact area in order to efficiently collect underground heat. It is about a vessel. 2. Description of the Related Art Conventionally, a polyethylene U-shaped tube or a double U-shaped tube has been used as an underground heat exchanger inserted into a heat collecting hole. [0003] This has the following disadvantages. I. Since the thermal conductivity of polyethylene is lower than the thermal conductivity of the ground, the transfer of underground heat to the heat transfer medium was hindered. B. Due to the small contact area with the ground, sufficient heat was not given to the heat transfer medium in the pipe. C. Heat collection efficiency was kept low due to Lee Ro. The present invention has been made to solve these disadvantages. [0004] An even number of straight pipes (1) made of a material having higher thermal conductivity than polyethylene are arranged in parallel. Then, the lower ends of the opposed straight pipes (1) are connected by a curved pipe (2). Furthermore, the upper ends are connected by a curved pipe (3) so that all the straight pipes (1) and the curved pipes (2) become a series. At this time, the end (6) and the end (7) of the series of tubes are left open.
The present invention is an underground heat exchanger having the above configuration. [0005] Embodiments of the present invention will be described below. (A) An even number of straight pipes (1) made of copper, aluminum or the like having higher thermal conductivity than polyethylene are arranged so as to be parallel to each other. The diameter of the tube and the number of tubes used are determined as appropriate. (B) The lower end of each pair of straight pipes (1) facing each other is a curved pipe (2)
To join. For the joint (4), welding, joints, etc. are appropriately used depending on the material in order to secure the airtightness. (C) The upper end of the straight pipe (1) is connected by a bent pipe (3) so that all of the sets of straight pipes (1) and bent pipes (2) connected in (b) become a series of pipes. For the joint (5), welding, joints, etc. are appropriately used depending on the material in order to secure the airtightness. The ends (6) and (7) of the series of tubes are left open without joining. When the present invention is used in the above structure, the underground heat exchanger (8) of the present invention is inserted into a heat sampling hole (9) drilled in the ground (13). Open end (6) and end (7) of the underground heat exchanger (8) of the present invention
One of the pipes is connected to a pipe serving as a heat transport medium outward path (10), and the other is connected to a pipe serving as a heat transport medium return path (11) to circulate water and antifreeze. The inside of the hole (12) may be filled with cement or gravel, or may be filled with groundwater. The water and antifreeze flowing into the underground heat exchanger (8) of the present invention from the heat transport medium outward path (10) are quickly heated and cooled by the warm or cold heat of the ground through a pipe having a high thermal conductivity. In addition, by increasing the length of the pipe having a high thermal conductivity, the contact area with the ground increases, and heat exchange is performed efficiently. The heat-exchanged water or antifreeze is taken out of the heat transport medium return path (11) and used as a hot or cold heat source. By using the present invention, a higher heat collection efficiency can be obtained as compared with a conventional polyethylene underground heat exchanger, and a large amount of heat and cold can be collected.

【図面の簡単な説明】 【図１】本発明の斜視図 【図２】本発明の平面図 【図３】本発明の正面図 【図４】本発明の右側面図 【図５】本発明の使用状態を示す採熱孔断面図 【符号の説明】 １ 直管 ２ 曲管 ３ 曲管 ４ 結合部 ５ 結合部 ６ 端部 ７ 端部 ８ 地中熱交換器 ９ 採熱孔 １０ 熱運搬媒体往路 １１ 熱運搬媒体復路 １２ 孔内 １３ 地盤[Brief description of the drawings] FIG. 1 is a perspective view of the present invention. FIG. 2 is a plan view of the present invention. FIG. 3 is a front view of the present invention. FIG. 4 is a right side view of the present invention. FIG. 5 is a sectional view of a heat collecting hole showing a use state of the present invention. [Explanation of symbols] 1 straight pipe 2 curved pipe 3 curved pipe 4 Joint 5 Joint 6 end 7 end 8 Underground heat exchanger 9 Heat collection hole 10 Outbound heat transfer medium 11 Return route of heat transfer medium 12 hole 13 Ground

Claims (1)

【特許請求の範囲】 【請求項１】ポリエチレンより高熱伝導率の材料ででき
た偶数本の直管（１）を、曲管（２）・曲管（３）で結
合して一連の管とし、管の端部（６）・端部（７）を開
放した地中熱交換器。Claims: 1. An even number of straight pipes (1) made of a material having higher thermal conductivity than polyethylene are joined by a curved pipe (2) and a curved pipe (3) to form a series of pipes. An underground heat exchanger with open ends (6) and (7) of the pipe.
JP2002112699A 2002-03-11 2002-03-11 Underground heat exchanger Pending JP2003262406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002112699A JP2003262406A (en) 2002-03-11 2002-03-11 Underground heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002112699A JP2003262406A (en) 2002-03-11 2002-03-11 Underground heat exchanger

Publications (1)

Publication Number Publication Date
JP2003262406A true JP2003262406A (en) 2003-09-19

Family

ID=29207611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002112699A Pending JP2003262406A (en) 2002-03-11 2002-03-11 Underground heat exchanger

Country Status (1)

Country Link
JP (1) JP2003262406A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705294A1 (en) * 2005-03-22 2006-09-27 Roxbury Limited Method and apparatus for introducing elongate members into the ground
JP2008256329A (en) * 2007-04-09 2008-10-23 Ohbayashi Corp Underground heat exchanger
CZ300423B6 (en) * 2005-08-26 2009-05-13 VKP Melník s. r. o. Pipe bracket of underground heat exchanger
JP2016223270A (en) * 2015-05-27 2016-12-28 理研興業株式会社 Geothermal heat collection device
JP2017026167A (en) * 2015-07-16 2017-02-02 三谷セキサン株式会社 Heat exchanger device using precast pile and precast pile with heat exchanging pipes
KR20210017615A (en) * 2019-08-09 2021-02-17 주식회사 포스코 Heat exchanging file of retaining wall and retaining wall

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705294A1 (en) * 2005-03-22 2006-09-27 Roxbury Limited Method and apparatus for introducing elongate members into the ground
CZ300423B6 (en) * 2005-08-26 2009-05-13 VKP Melník s. r. o. Pipe bracket of underground heat exchanger
JP2008256329A (en) * 2007-04-09 2008-10-23 Ohbayashi Corp Underground heat exchanger
JP2016223270A (en) * 2015-05-27 2016-12-28 理研興業株式会社 Geothermal heat collection device
JP2017026167A (en) * 2015-07-16 2017-02-02 三谷セキサン株式会社 Heat exchanger device using precast pile and precast pile with heat exchanging pipes
KR20210017615A (en) * 2019-08-09 2021-02-17 주식회사 포스코 Heat exchanging file of retaining wall and retaining wall
KR102268914B1 (en) * 2019-08-09 2021-06-25 주식회사 포스코 Heat exchanging file of retaining wall and retaining wall
KR20210079249A (en) * 2019-08-09 2021-06-29 주식회사 포스코 Heat exchanging file of retaining wall and retaining wall
KR102348578B1 (en) * 2019-08-09 2022-01-06 주식회사 포스코 Heat exchanging file of retaining wall and retaining wall

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