JP2946082B2 - Method and apparatus for measuring exchange heat of underground heat exchanger - Google Patents
Method and apparatus for measuring exchange heat of underground heat exchangerInfo
- Publication number
- JP2946082B2 JP2946082B2 JP7172781A JP17278195A JP2946082B2 JP 2946082 B2 JP2946082 B2 JP 2946082B2 JP 7172781 A JP7172781 A JP 7172781A JP 17278195 A JP17278195 A JP 17278195A JP 2946082 B2 JP2946082 B2 JP 2946082B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- underground
- heat medium
- heat exchanger
- temperature
- 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.)
- Expired - Lifetime
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
- F24T10/17—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 tubes closed at one end, i.e. return-type tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T2010/50—Component parts, details or accessories
- F24T2010/56—Control arrangements
-
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空調・給湯・温水プー
ル・植物栽培・動物飼育・融雪等に、四季を通じて変わ
らない豊富な低レベルの地熱を有効利用するに当って、
地熱を採取する個々の地中熱交換器について、不凍液等
の循環熱媒量と採熱量（熱量と到達温度レベル）との関
係を把握することを目的とした地中熱交換器の交換熱量
測定方法及びその装置に関するものである。The present invention relates to the effective use of abundant low-level geothermal power which does not change throughout the seasons for air conditioning, hot water supply, hot water pool, plant cultivation, animal breeding, snow melting, etc.
Exchange heat measurement of an underground heat exchanger for the purpose of understanding the relationship between the amount of circulating heat medium such as antifreeze and the amount of heat collected (heat amount and ultimate temperature level) for each underground heat exchanger that collects geothermal heat A method and an apparatus therefor.
【０００２】[0002]
【従来の技術】従来、各所に散財する、量的に豊富では
あるが、低レベルの地熱の利用、特に低レベルを地下よ
り汲出し、空調・給湯・温水プール・植物栽培・動物飼
育・融雪等へ有効利用することはあまり進んでいない。
その理由の主たるものは、利用に当って、汲出す地下水
量が大量であるため、それによって地盤沈下・地下水低
下を起したり、排水処理・管理が困難である等、環境破
壊・汚染を起すおそれがあることにある。2. Description of the Related Art Conventionally, abundant but low-level use of geothermal energy, especially low-level pumping from the basement, air-conditioning, hot water supply, heated pool, plant cultivation, animal breeding, snow melting It has not been very effective to use it effectively.
The main reason for this is the large amount of groundwater pumped out during use, which causes land subsidence and groundwater degradation, and also causes environmental destruction and pollution such as difficulty in wastewater treatment and management. There is a danger.
【０００３】その対策として、地下に地熱採取用の熱交
換器を埋設し、その熱交換器に不凍液等の熱媒を送り、
伝熱面を介して地熱と熱媒とを間接熱交換させ、地熱を
採取する方法がある。この手段を採用した場合、不凍液
等の循環熱媒量と採熱量（熱量と到達温度レベル）との
関係を把握することが困難であり、従って地熱利用計画
の立案が困難であると言う問題点がある。As a countermeasure, a heat exchanger for extracting geothermal heat is buried underground, and a heat medium such as antifreeze is sent to the heat exchanger.
There is a method in which geothermal heat and a heat medium are indirectly exchanged via a heat transfer surface to collect geothermal heat. When this means is adopted, it is difficult to grasp the relationship between the amount of circulating heat medium such as antifreeze and the amount of heat taken (the amount of heat and the attained temperature level), so that it is difficult to make a geothermal utilization plan. There is.
【０００４】[0004]
【発明が解決しようとする課題】解決しようとする問題
点は、上記従来の地下に地熱採取用の熱交換器を埋設
し、その熱交換器に不凍液等の他の熱媒を送り、伝熱面
を介して地熱と熱媒とを間接熱交換させ、地熱を採取す
る方法は、不凍液等の循環熱媒量と採熱量（熱量と到達
温度レベル）との関係を把握することが困難であり、従
って地熱利用計画の立案が困難であることであって、本
発明は上記問題を解決した、地中熱交換器の交換熱量測
定方法及びその装置を提供するものである。The problem to be solved is that a heat exchanger for extracting geothermal heat is buried in the above-mentioned conventional underground, and another heat medium such as an antifreeze solution is sent to the heat exchanger to transfer heat. It is difficult to grasp the relationship between the amount of circulating heat medium, such as antifreeze, and the amount of heat (the amount of heat and the ultimate temperature level) by indirectly exchanging heat between the ground heat and the heat medium through the surface. Therefore, it is difficult to make a geothermal utilization plan, and the present invention provides a method and an apparatus for measuring the amount of exchanged heat of an underground heat exchanger, which solves the above-mentioned problem.
【０００５】[0005]
【課題を解決するための手段】図面を参考にして説明す
る。請求項１の発明は、熱媒供給元タンク１０の熱媒と
して使用する不凍液の温度を２〜４℃に設定し、熱媒供
給元タンク１０の水をポンプ４１，４２により、熱媒循
環路３０を介して、地中に埋設した地中熱交換器２０に
連続的に送り、循環させ、地熱と熱媒とを間接熱交換さ
せ、熱媒循環量Ｑ、地熱温度Ｔ、及び熱媒の地中熱交換
器２０の熱媒入口，出口温度Ｓ1，Ｓ2を測定することを
特徴とする地中熱交換器の交換熱量測定方法である。The present invention will be described with reference to the drawings. According to the first aspect of the present invention, the temperature of the antifreeze used as the heat medium of the heat medium supply source tank 10 is set to 2 to 4 ° C., and the water of the heat medium supply source tank 10 is heated by the pumps 41 and 42 to the heat medium circulation path. 30, continuously sent to the underground heat exchanger 20 buried in the ground, circulated, and indirectly heat-exchanges the geothermal heat with the heat medium, the heat medium circulation amount Q, the geothermal temperature T, and the heat medium This is a method for measuring the exchange heat of the underground heat exchanger, which comprises measuring the temperatures S 1 and S 2 of the heat medium inlet and outlet of the underground heat exchanger 20.
【０００６】請求項２の発明は、熱媒として使用する水
の温度を２〜４℃に調整し、貯留する熱媒供給元タンク
１０、熱媒を通し、地熱と間接熱交換させる地中熱交換
器２０、前記熱媒供給元タンク１０と地中熱交換器２０
との間を熱媒を循環させる熱媒循環路３０、熱媒循環路
３０に設けたポンプ４１，４２、流量計５０、熱媒の地
中熱交換器２０の入口，出口、地中熱交換器２０内の温
度をそれぞれ測定する温度計６１，６２，６３，６４、
及び地熱を測定するために地中熱交換器２０の周囲に設
けた温度計群７０を備えたことを特徴とする地中熱交換
器の交換熱量測定装置である。A second aspect of the present invention is to control the temperature of water used as a heat medium to 2 to 4 ° C., to store a heat medium supply tank 10, to pass through the heat medium, and to perform indirect heat exchange with geothermal heat. Exchanger 20, the heat medium supply tank 10 and the underground heat exchanger 20
, A heat medium circulation path 30 for circulating a heat medium between the heat medium circulation path 30, pumps 41 and 42 provided in the heat medium circulation path 30, a flow meter 50, an inlet and an outlet of the heat medium underground heat exchanger 20, and underground heat exchange. Thermometers 61, 62, 63, 64 for measuring the temperature inside the vessel 20, respectively;
And a thermometer group 70 provided around the underground heat exchanger 20 for measuring geothermal heat.
【０００７】[0007]
【実施例】本発明の実施例について、図１により説明す
ると、１０は水熱媒として使用する水の温度を２〜４℃
に調整し、貯留する熱媒供給元タンクであって、条件と
して最も過酷な冬季をベースにして、氷塊を入れて、上
記水温に調整するようにしている。なお、１５，１５は
連通管１６で連結した１対の熱媒中間タンクであって、
熱媒供給元タンク１０よりの水を氷塊を入れてさらに冷
却するようしてある。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.
This is a heat medium supply source tank for adjusting and storing the water temperature. The water temperature is adjusted to the above-mentioned water temperature based on the harshest winter season as a condition. Reference numerals 15 and 15 denote a pair of heat medium intermediate tanks connected by a communication pipe 16.
The water from the heat medium supply source tank 10 is further cooled by putting ice blocks.
【０００８】２０は熱媒を通し、地熱と間接熱交換させ
る地中熱交換器であって、図では２重管にしてあるが、
必ずしもこれに限定されるものではない。３０は前記熱
媒供給元タンク１０と地中熱交換器２０との間を熱媒を
循環させる熱媒循環路、３１，３２はそれぞれ流量調整
用のバルブ、４１，４２はそれぞれ熱媒循環路３０に設
けたポンプ、５０は熱媒循環路３０の地中熱交換器２０
の上流側に設けた流量計、６１，６２，６３，６４はそ
れぞれ熱媒の地中熱交換器２０入口，出口、地中熱交換
器２０内の温度を測定する温度計、７０は地熱を測定す
るために地中熱交換器２０の周囲に設けた温度計７１，
７２，７３，７４の集合である。[0008] Reference numeral 20 denotes an underground heat exchanger for indirect heat exchange with geothermal heat through a heat medium.
It is not necessarily limited to this. Reference numeral 30 denotes a heat medium circulation path for circulating a heat medium between the heat medium supply source tank 10 and the underground heat exchanger 20, reference numerals 31 and 32 denote flow rate adjusting valves, and reference numerals 41 and 42 denote heat medium circulation paths. A pump 50 provided at 30 is an underground heat exchanger 20 of the heat medium circulation path 30.
Flow meters 61, 62, 63, and 64 are thermometers for measuring the temperature of the heat medium at the entrance and exit of the underground heat exchanger 20 and the temperature inside the underground heat exchanger 20, respectively. A thermometer 71 provided around the underground heat exchanger 20 for measurement;
72, 73, and 74.
【０００９】上記構成の地中熱交換器の交換熱量測定装
置により、循環熱媒量と採熱量（熱量と到達温度レベ
ル）との関係を把握するに当っては、以下のように操作
する。In order to grasp the relationship between the amount of circulating heat medium and the amount of heat taken (the amount of heat and the attained temperature level), the following operation is performed by the apparatus for measuring the amount of exchanged heat of the underground heat exchanger having the above configuration.
【００１０】熱媒供給元タンク１０の熱媒として使用す
る水の温度を、氷塊を入れて２〜４℃に調整し、ポンプ
４１，４２により、熱媒循環路３０を介して、地中に埋
設した地中熱交換器２０に連続的に送り、循環させ、地
熱と熱媒とを間接熱交換させ、熱媒循環量Ｑ、地熱温度
Ｔ、及び熱媒の地中熱交換器２０の熱媒入口，出口温度
Ｓ1，Ｓ2を測定し、その結果に基づき、計算することに
よって循環熱媒量と採熱量（熱量と到達温度レベル）と
の関係を把握する。The temperature of the water used as the heat medium in the heat medium supply tank 10 is adjusted to 2 to 4 ° C. by putting ice blocks, and the water is pumped into the ground through the heat medium circulation path 30 by the pumps 41 and 42. It is continuously sent to the buried underground heat exchanger 20 and circulated, and indirect heat exchange is performed between the geothermal heat and the heat medium, the heat medium circulation amount Q, the geothermal temperature T, and the heat of the underground heat exchanger 20 of the heat medium. The medium inlet and outlet temperatures S 1 and S 2 are measured, and the relationship between the amount of circulating heat medium and the amount of heat taken (heat amount and ultimate temperature level) is grasped by calculation based on the results.
【００１１】[0011]
【作用】さらに具体例により詳細説明すると、準備が完
了したら、測定開始前に地中熱交換器２０の温度Ｔを温
度計群７０（７１〜７４）により測定しておく。次にポ
ンプ４１，４２を起動し、バルブ３１，３２を開けて熱
媒流量を調整する。熱媒循環量Ｑを流量計５０により確
認したうえ、熱媒循環量Ｑ、熱媒出入口温度計６１，６
２により温度Ｓ1，Ｓ2を計測すると共に地熱温度Ｔを温
度計６３，６４により計測する。More specifically, when the preparation is completed, the temperature T of the underground heat exchanger 20 is measured by the thermometer group 70 (71 to 74) before the measurement is started. Next, the pumps 41 and 42 are started, and the valves 31 and 32 are opened to adjust the flow rate of the heat medium. After checking the heat medium circulation amount Q with the flow meter 50, the heat medium circulation amount Q and the heat medium inlet / outlet thermometers 61 and 6 are used.
2 by measuring the temperature gauge 63 and 64 geothermal temperature T as well as measuring the temperature S 1, S 2.
【００１２】出入口温度Ｓ1，Ｓ2がある程度安定した
ら、１０分間隔で各値を計測する。出入口温度Ｓ1，
Ｓ2、地熱温度Ｔ共に安定して定常状態が得られれば、
１分程度計測する。この結果に基づき、計算することに
よって循環熱媒量と採熱量（熱量と到達温度レベル）と
の関係を把握することが出来る。なお、引続き約１時
間、１０分間隔で各値を計測する。上記スケジュールを
図２に示す。When the entrance and exit temperatures S 1 and S 2 are stabilized to some extent, each value is measured at intervals of 10 minutes. Doorway temperature S 1 ,
If both S 2 and the geothermal temperature T are stable and a steady state is obtained,
Measure for about 1 minute. Based on this result, the relationship between the amount of circulating heat medium and the amount of heat taken (the amount of heat and the attained temperature level) can be grasped by calculation. In addition, each value is measured at intervals of about 1 hour and 10 minutes. The above schedule is shown in FIG.
【００１３】[0013]
【発明の効果】本発明は以上のように構成されるため、
地下に地熱採取用の地中熱交換器を埋設し、その熱交換
器に不凍液等の熱媒を送り、伝熱面を介して地熱と熱媒
とを間接熱交換させ、地熱を採取する場合、従来困難で
あった不凍液等の循環熱媒量と採熱量（熱量と到達温度
レベル）との関係を把握すること、及び地熱利用計画の
立案が極めて容易になった。Since the present invention is configured as described above,
In the case of burying an underground heat exchanger for geothermal sampling underground, sending a heat medium such as antifreeze to the heat exchanger, and indirectly exchanging heat with the heat medium through the heat transfer surface to collect geothermal heat In addition, it has become extremely easy to grasp the relationship between the amount of circulating heat medium such as antifreeze and the amount of heat taken (heat amount and ultimate temperature level), and to make a geothermal utilization plan, which was difficult in the past.
【図１】本発明の実施例を示す回路図である。FIG. 1 is a circuit diagram showing an embodiment of the present invention.
【図２】本発明の実施スケジュール図である。FIG. 2 is an implementation schedule diagram of the present invention.
１０ 熱媒供給元タンク １５ 熱媒中間タンク １６ 連通管 ２０ 地中熱交換器 ３０ 熱媒循環路 ３１，３２ バルブ ４１，４２ ポンプ ５０ 流量計 ６１〜６４ 温度計 ７０ 温度計群 ７１〜７４ 温度計 Ｑ 熱媒循環量 Ｔ 地熱温度 Ｓ1 熱媒入口温度 Ｓ2 熱媒出口温度DESCRIPTION OF SYMBOLS 10 Heat medium supply source tank 15 Heat medium intermediate tank 16 Communication pipe 20 Underground heat exchanger 30 Heat medium circulation path 31, 32 Valve 41, 42 Pump 50 Flow meter 61-64 Thermometer 70 Thermometer group 71-74 Thermometer Q Heat medium circulation amount T Geothermal temperature S 1 Heat medium inlet temperature S 2 Heat medium outlet temperature
Claims (2)
使用する水の温度を２〜４℃に設定し、熱媒供給元タン
ク（１０）の水をポンプ（４１，４２）により、熱媒循
環路（３０）を介して、地中に埋設した地中熱交換器
（２０）に連続的に送り、循環させ、地熱と熱媒とを間
接熱交換させ、熱媒循環量（Ｑ）、地熱温度（Ｔ）、及
び熱媒の地中熱交換器（２０）の熱媒入口，出口温度
（Ｓ1，Ｓ2 ）を測定することを特徴とする地中熱交換器
の交換熱量測定方法。1. A heating medium for a heating medium supply tank (10).
Set the temperature of the water to be used at 2-4 ° C,
(10) water is circulated by pumps (41, 42)
Underground heat exchanger buried underground via an annulus (30)
Continuously sent to (20) and circulated, between geothermal and heat medium
Heat exchange, heat medium circulation (Q), geothermal temperature (T),
Heat medium inlet and outlet temperature of underground heat exchanger (20)
(S1, STwo Underground heat exchanger characterized by measuring
Exchange calorimetry method.
に調整し、貯留する熱媒供給元タンク（１０）、熱媒を
通し、地熱と間接熱交換させる地中熱交換器（２０）、
前記熱媒供給元タンク（１０）と地中熱交換器（２０）
との間を熱媒を循環させる熱媒循環路（３０）、熱媒循
環路（３０）に設けたポンプ（４１，４２）、流量計
（５０）、熱媒の地中熱交換器（２０）の入口，出口、
地中熱交換器（２０）内の温度をそれぞれ測定する温度
計（６１，６２，６３，６４）、及び地熱を測定するた
めに地中熱交換器（２０）の周囲に設けた温度計群（７
０）を備えたことを特徴とする地中熱交換器の交換熱量
測定装置。2. The temperature of water used as a heating medium is 2 to 4 ° C.
A heat medium supply source tank (10) for adjusting and storing the heat medium, an underground heat exchanger (20) for passing the heat medium and indirectly exchanging heat with geothermal heat,
The heating medium supply tank (10) and the underground heat exchanger (20)
, A heat medium circulation path (30) for circulating a heat medium, pumps (41, 42) provided in the heat medium circulation path (30), a flow meter (50), and a heat medium underground heat exchanger (20). ) Entrance, exit,
Thermometers (61, 62, 63, 64) for measuring the temperature in the underground heat exchanger (20), respectively, and thermometers provided around the underground heat exchanger (20) for measuring the geothermal heat (7
0) An exchange calorimeter for an underground heat exchanger, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7172781A JP2946082B2 (en) | 1995-06-14 | 1995-06-14 | Method and apparatus for measuring exchange heat of underground heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7172781A JP2946082B2 (en) | 1995-06-14 | 1995-06-14 | Method and apparatus for measuring exchange heat of underground heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08338696A JPH08338696A (en) | 1996-12-24 |
| JP2946082B2 true JP2946082B2 (en) | 1999-09-06 |
Family
ID=15948237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7172781A Expired - Lifetime JP2946082B2 (en) | 1995-06-14 | 1995-06-14 | Method and apparatus for measuring exchange heat of underground heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2946082B2 (en) |
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| US9587890B2 (en) * | 2009-11-05 | 2017-03-07 | Tai-Her Yang | Vertical fluid heat exchanger installed within natural thermal energy body |
| CA3018677C (en) * | 2009-11-05 | 2021-06-29 | Tai-Her Yang | Vertical fluid heat exchanger installed within natural thermal energy body |
| CN108254103A (en) * | 2016-12-29 | 2018-07-06 | 河北绿源地热能开发有限公司 | A kind of geothermal well productivity test device and its test method |
-
1995
- 1995-06-14 JP JP7172781A patent/JP2946082B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101020235B1 (en) * | 2008-11-10 | 2011-03-08 | 주식회사 영일교육시스템 | Experimental equipment for heat exchange and Server for controlling experimental equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08338696A (en) | 1996-12-24 |
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