JP2002081763A - Solar heat and underground heat utilizing system - Google Patents
Solar heat and underground heat utilizing systemInfo
- Publication number
- JP2002081763A JP2002081763A JP2000267372A JP2000267372A JP2002081763A JP 2002081763 A JP2002081763 A JP 2002081763A JP 2000267372 A JP2000267372 A JP 2000267372A JP 2000267372 A JP2000267372 A JP 2000267372A JP 2002081763 A JP2002081763 A JP 2002081763A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- solar
- underground
- circulation path
- collecting panel
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0052—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using the ground body or aquifers as heat storage medium
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、戸建て住宅におけ
る太陽熱、地中熱利用システムに関し、太陽熱集熱パネ
ルと建物内等に設置した蓄熱槽との間に形成された第１
の集熱媒体循環経路と、太陽熱集熱パネルと蓄熱槽と並
設して地中に設置した地中熱交換器との間に形成された
第２の集熱媒体循環経路とを、経路切り替え用の三方弁
によりそれぞれ単独使用又は併用可能とした太陽熱、地
中熱利用システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for utilizing solar heat and underground heat in a detached house, and more particularly to a first system formed between a solar heat collecting panel and a heat storage tank installed in a building or the like.
And a second heat collection medium circulation path formed between the solar heat collection panel and the underground heat exchanger installed in the ground in parallel with the solar heat collection panel and the heat storage tank. The present invention relates to a solar heat and underground heat utilization system which can be used alone or in combination with a three-way valve for use.
【０００２】[0002]
【従来の技術】従来の太陽エネルギ利用装置を図２によ
って説明すると、図２は従来公知の太陽エネルギ利用装
置の概略回路図である。符号１は、建物の屋根面に載置
された太陽熱集熱パネルで、太陽電池２を併設したハイ
ブリッドタイプのパネルである。また、符号３と４は並
列して設けられた蓄熱槽である。太陽熱集熱パネル１で
温められた集熱媒体は、太陽熱集熱パネル１から配管７
−三方弁１２−並列して設けられた蓄熱槽３に内蔵され
た熱交換器５−三方弁１３−太陽熱集熱パネル１と、図
示されていないポンプによって循環するようになってい
る。集熱媒体が蓄熱槽３に内蔵された熱交換器５に流れ
ることを繰り返し循環することで、蓄熱槽３内の水の温
度を上げていく。2. Description of the Related Art A conventional solar energy utilizing apparatus will be described with reference to FIG. 2. FIG. 2 is a schematic circuit diagram of a conventionally known solar energy utilizing apparatus. Reference numeral 1 denotes a solar heat collecting panel mounted on a roof surface of a building, which is a hybrid type panel provided with a solar cell 2. Reference numerals 3 and 4 are heat storage tanks provided in parallel. The heat collecting medium heated by the solar heat collecting panel 1 is supplied from the solar heat collecting panel 1 to the pipe 7.
A three-way valve 12-a heat exchanger incorporated in a heat storage tank 3 provided in parallel-a three-way valve 13-a solar heat collecting panel 1 and a pump (not shown) circulates. The temperature of the water in the heat storage tank 3 is increased by repeatedly circulating the heat collecting medium flowing through the heat exchanger 5 built in the heat storage tank 3.
【０００３】そして、蓄熱槽３内に組み込まれている温
度センサー１４の検知した蓄熱槽３内の温度が予めマイ
コン等の判定器１５に設定しておいた限界温度に達した
場合、三方弁１２と三方弁１３の動作が切り替わり、集
熱媒体は、太陽熱集熱パネル１−配管７−三方弁１２−
配管８−蓄熱槽４に内蔵された熱交換器６−配管１０−
太陽熱集熱パネル１−配管７と流れ、蓄熱槽３内の水温
を上昇させる。なお、蓄熱槽３内の水温が時間の経過と
共に限界温度を下回ると、再び三方弁１２と三方弁１３
の動作が切り替わり、元の状態に復帰して蓄熱槽３内の
水温を上昇させるものである。そして、蓄熱槽４の他に
も複数の蓄熱槽を蓄熱槽３と並設し、蓄熱する容量を増
加させるものである（特開平１０−１９７０７５号公報
参照）。When the temperature in the heat storage tank 3 detected by the temperature sensor 14 incorporated in the heat storage tank 3 reaches a limit temperature set in advance in a judging device 15 such as a microcomputer, a three-way valve 12 is provided. And the operation of the three-way valve 13 is switched, and the heat collecting medium is a solar heat collecting panel 1-piping 7-three-way valve 12-
Pipe 8-heat exchanger built in heat storage tank 4-pipe 10-
The heat flows from the solar heat collecting panel 1 to the pipe 7 to raise the water temperature in the heat storage tank 3. When the water temperature in the heat storage tank 3 falls below the limit temperature with the passage of time, the three-way valve 12 and the three-way valve
Is switched to the original state, and the water temperature in the heat storage tank 3 is raised. In addition to the heat storage tank 4, a plurality of heat storage tanks are provided in parallel with the heat storage tank 3 to increase the heat storage capacity (see Japanese Patent Application Laid-Open No. H10-1970075).
【０００４】[0004]
【発明が解決しようとする課題】しかし、図２に図示し
た従来公知の太陽エネルギ利用装置では、特に、夏季の
晴天時の集熱量が多い昼間には、太陽熱集熱パネルから
の熱を複数の蓄熱槽を設けて蓄熱しているが、蓄熱する
ために多くの蓄熱設備を必要とし、そのため多くのコス
トを要し、また例え、各蓄熱槽に十分に熱が蓄熱された
後でも太陽熱集熱パネルの温度が更に上昇するため、日
射を受けている屋根面の輻射熱が天井裏から居室内に入
るので冷房負荷が増大する。また、太陽電池と太陽熱集
熱パネルとのハイブリッドパネルの場合には、温度上昇
による発電効率の低下が発生すると云う問題があった。However, in the conventional solar energy utilization apparatus shown in FIG. 2, the heat from the solar heat collecting panel is supplied to a plurality of solar heat collectors in the daytime when the amount of heat collected in summer is fine. A heat storage tank is provided to store heat, but it requires a lot of heat storage equipment to store heat, and therefore requires a lot of cost.Also, even after heat is sufficiently stored in each heat storage tank, solar heat collection Since the temperature of the panel further rises, the radiant heat of the roof surface receiving solar radiation enters the living room from behind the ceiling, so that the cooling load increases. Further, in the case of a hybrid panel of a solar cell and a solar heat collecting panel, there is a problem that a decrease in power generation efficiency due to a rise in temperature occurs.
【０００５】そこで、本発明は、上述した課題によりな
されたもので、建物の屋根面に設置した太陽熱集熱パネ
ルと太陽電池とのハイブリッドパネルと、建物内又は建
物近傍に設置した蓄熱槽と、この蓄熱槽と並設して設け
た地中熱交換器とをそれぞれ集熱媒体循環経路で接続し
た太陽熱、地中熱利用システムは、夏季の晴天時の集熱
量が多い昼間には、建物内又は建物近傍に設置した蓄熱
槽と地中に設けた熱交換器とを併用して蓄熱及び地中に
排熱して太陽熱集熱パネルの温度の上昇を防止すると共
に、温度上昇による太陽熱集熱パネルに併設された太陽
電池の発電効率の低下を防止したり、また、日照量の少
ない冬季には、地中に設けた熱交換器によって該熱交換
器の周りの地中の土壌または砂利層に夏季の間に蓄熱さ
れた熱で、地中に設けた熱交換器を循環して流れる集熱
媒体を温めて太陽熱集熱パネルに送り、太陽熱集熱パネ
ル内に巡らされた配管から放熱して、太陽熱集熱パネル
の表面に積もった雪を溶かすようにした太陽熱、地中熱
利用システムを提供することを目的とするものである。Accordingly, the present invention has been made in view of the above-mentioned problems, and has been made of a hybrid panel of a solar heat collecting panel and a solar cell installed on a roof surface of a building, a heat storage tank installed in or near the building, The solar heat and underground heat utilization system, in which this heat storage tank and the underground heat exchanger provided in parallel with each other are connected by a heat collection medium circulation path, Alternatively, the heat storage tank installed near the building and the heat exchanger installed underground are used together to store heat and exhaust heat to the ground to prevent the temperature of the solar heat collecting panel from rising, and to increase the temperature of the solar heat collecting panel due to the temperature rise. To prevent a decrease in the power generation efficiency of the solar cells attached to the ground, and in winter when the amount of sunlight is small, the underground heat exchangers are installed on the underground soil or gravel layer around the heat exchangers. Under the ground with heat stored during the summer Heats the heat collecting medium flowing through the heat exchanger and sends it to the solar heat collecting panel, radiates heat from the piping around the solar heat collecting panel, and melts the snow accumulated on the surface of the solar heat collecting panel. It is an object of the present invention to provide a solar heat and underground heat utilization system.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の請求項１に記載の発明は、建物の屋根面に
設置した太陽熱集熱パネルと建物内又は建物近傍に設置
した蓄熱槽との間に形成された第１の集熱媒体循環経路
と、前記蓄熱槽と並設して地中に設置した地中熱交換器
と前記太陽熱集熱パネルとの間に形成された第２の集熱
媒体循環経路とで構成した太陽熱、地中熱利用システム
において、両集熱媒体循環経路の分岐箇所に経路切り替
え用の三方弁を設け、各集熱媒体循環経路をそれぞれ単
独使用又は併用可能としたことを特徴とするものであ
る。In order to achieve the above object, the invention according to claim 1 of the present invention comprises a solar heat collecting panel installed on a roof surface of a building and a heat storage panel installed in or near the building. A first heat collecting medium circulation path formed between the solar heat collecting panel and a solar heat collecting panel formed between the underground heat exchanger installed in the ground in parallel with the heat storage tank. In the solar heat and underground heat utilization system composed of the two heat collection medium circulation paths, a three-way valve for switching the path is provided at a branch point of both heat collection medium circulation paths, and each heat collection medium circulation path is used alone or It is characterized in that it can be used together.
【０００７】また、上記の目的を達成するため、本発明
の請求項２に記載の発明は、太陽熱集熱パネルが蓄熱槽
の蓄熱容量を越える日射を受けた場合に、前記三方弁の
切り替えにより前記第２の集熱媒体循環経路の地中熱交
換器から放熱することを特徴とするものである。また、
上記の目的を達成するため、本発明の請求項３に記載の
発明は、太陽熱集熱パネルに積雪した場合、第２の集熱
媒体循環経路の地中熱交換器で地中に蓄熱された熱を太
陽熱集熱パネル内の配管から放熱することを特徴とする
ものである。[0007] In order to achieve the above object, the invention according to claim 2 of the present invention is provided by switching the three-way valve when the solar heat collecting panel receives solar radiation exceeding the heat storage capacity of the heat storage tank. The heat is radiated from the underground heat exchanger in the second heat collection medium circulation path. Also,
In order to achieve the above object, the invention according to claim 3 of the present invention is characterized in that when snow accumulates on a solar heat collecting panel, heat is stored underground by an underground heat exchanger in a second heat collecting medium circulation path. It is characterized in that heat is radiated from pipes in the solar heat collecting panel.
【０００８】[0008]
【発明の実施の形態】以下、本発明の太陽熱、地中熱利
用システムの実施の形態を図１によって説明すると、図
１は、本発明の太陽熱、地中熱利用システムの概略回路
図で、図１に図示されているように、本発明の太陽熱、
地中熱利用システムは、建物の屋根面にハイブリッドパ
ネルを設置し、このハイブリッドパネルは太陽熱集熱パ
ネル１と図示していない太陽電池を積層一体化した構成
とされている。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the solar heat and ground heat utilization system of the present invention will be described below with reference to FIG. 1. FIG. 1 is a schematic circuit diagram of the solar heat and ground heat utilization system of the present invention. As shown in FIG. 1, the solar heat of the present invention,
The underground heat utilization system has a configuration in which a hybrid panel is installed on a roof surface of a building, and the hybrid panel is configured by stacking and integrating a solar heat collecting panel 1 and a solar cell (not shown).
【０００９】この太陽熱集熱パネル１には、太陽熱集熱
パネル１の表面温度を計測するための温度センサー３０
が付設されると共に、その内部には、図示されてはいな
い不凍液体からなる集熱媒体が流れて太陽熱を集熱する
配管が巡らされている。そして、この配管の両端には、
集熱媒体を循環させるポンプ１８からの配管２４と第２
三方弁２２への配管２５が接続されている。The solar heat collecting panel 1 has a temperature sensor 30 for measuring the surface temperature of the solar heat collecting panel 1.
And a pipe through which a heat collecting medium (not shown) made of an antifreeze liquid flows to collect solar heat. And at both ends of this pipe,
The pipe 24 from the pump 18 for circulating the heat collecting medium and the second
A pipe 25 to the three-way valve 22 is connected.
【００１０】配管２５に接続された第２三方弁２２に
は、建物内又は建物近傍に設置した蓄熱槽１９に内蔵さ
れた熱交換器２３への配管２６と地中に設置された地下
熱交換器２０への配管２８が接続されており、第２三方
弁２２の切り替えにより太陽熱集熱パネル１で温められ
た集熱媒体を、蓄熱槽１９に内蔵された熱交換器２３と
地中に設置された地下熱交換器２０の両方に、蓄熱槽１
９に内蔵された熱交換器２３のみに、又は地下熱交換器
２０のみにと切り替えて流すことができる。また、蓄熱
槽１９に内蔵された熱交換器２３には第１三方弁２１に
接続した配管２７が接続されている。また、地中に設置
された地下熱交換器２０には第１三方弁２１に接続した
配管２９が接続されている。そして、第１三方弁２１
は、ポンプ１８、配管２４により太陽熱集熱パネル１に
接続されている。A second three-way valve 22 connected to a pipe 25 has a pipe 26 to a heat exchanger 23 built in a heat storage tank 19 installed in or near the building and an underground heat exchanger installed in the ground. A pipe 28 is connected to the heater 20, and the heat collecting medium warmed by the solar heat collecting panel 1 by switching the second three-way valve 22 is installed underground with the heat exchanger 23 built in the heat storage tank 19. Heat storage tanks 1 in both of the underground heat exchangers 20
The flow can be switched to only the heat exchanger 23 built in the 9 or only to the underground heat exchanger 20. Further, a pipe 27 connected to the first three-way valve 21 is connected to the heat exchanger 23 built in the heat storage tank 19. In addition, a pipe 29 connected to the first three-way valve 21 is connected to the underground heat exchanger 20 installed underground. And the first three-way valve 21
Is connected to the solar heat collecting panel 1 by a pump 18 and a pipe 24.
【００１１】（作用）このように構成された本発明の太
陽熱、地中熱利用システムにおいて、建物の屋根面に設
置された太陽熱集熱パネル１と蓄熱槽１９との間に形成
した第１の集熱媒体の循環経路について説明すると、建
物の屋根面に設置された太陽熱集熱パネル１にポンプ１
８によって送られる集熱媒体は、日射により太陽熱集熱
パネル１で温められ、配管２５から第２三方弁２２の切
り替えにより配管２６を経て蓄熱槽１９に内蔵された熱
交換器２３に送られ、熱交換器２３によって蓄熱槽１９
内の水又は比熱の高い流体を温めると共に蓄熱槽１９に
蓄熱される。(Operation) In the solar heat and underground heat utilization system of the present invention configured as described above, a first heat storage tank 19 formed between the solar heat collecting panel 1 installed on the roof surface of the building and the heat storage tank 19. Explaining the circulation path of the heat collecting medium, the pump 1 is mounted on the solar heat collecting panel 1 installed on the roof surface of the building.
The heat collecting medium sent by 8 is heated by the solar heat collecting panel 1 by the solar radiation, sent to the heat exchanger 23 built in the heat storage tank 19 via the pipe 26 by switching the second three-way valve 22 from the pipe 25, Heat storage tank 19 by heat exchanger 23
The internal water or the fluid having a high specific heat is warmed and stored in the heat storage tank 19.
【００１２】そして、この蓄熱槽１９内の温められた水
又は比熱の高い流体は、温水の場合は、台所又は洗面
所、浴室などに送られ利用されると共に、居室内の放熱
器により暖房として利用され、温められた比熱の高い流
体は、居室内の放熱器により暖房として利用される。蓄
熱槽１９内の水又は比熱の高い流体を温めた集熱媒体
は、配管２７から第１三方弁２１からポンプ１８に送ら
れ配管２４から再び太陽熱集熱パネル１に送られる。こ
のようにして、集熱媒体は、ポンプ１８−配管２４−太
陽熱集熱パネル１−配管２５−第２三方弁２２−配管２
６−熱交換器２３−配管２７−第１三方弁２１−ポンプ
１８−配管２４−太陽熱集熱パネル１と循環して第１の
集熱媒体の循環経路を形成する。In the case of warm water, the warmed water or the fluid having a high specific heat in the heat storage tank 19 is sent to a kitchen, a washroom, a bathroom, or the like, and used as heating by a radiator in the living room. The used and heated fluid having a high specific heat is used as heating by a radiator in the living room. The heat collecting medium warming the water or the fluid having a high specific heat in the heat storage tank 19 is sent from the pipe 27 to the pump 18 from the first three-way valve 21 and sent from the pipe 24 to the solar heat collecting panel 1 again. In this way, the heat collecting medium is pump 18-pipe 24-solar heat collecting panel 1-pipe 25-second three-way valve 22-pipe 2
6-heat exchanger 23-pipe 27-first three-way valve 21-pump 18-pipe 24-circulates with solar heat collecting panel 1 to form a circulation path of the first heat collecting medium.
【００１３】次に、太陽熱集熱パネル１と地中に設置し
た地下熱交換器２０との間に形成された第２の集熱媒体
の循環経路について説明すると、第２三方弁２２と第１
三方弁２１を切り替えて、配管２５と配管２８とを連通
させると共に配管２９とポンプ１８とを連通させると、
建物の屋根面に設置された太陽熱集熱パネル１にポンプ
１８によって送られる集熱媒体は、日射により太陽熱集
熱パネル１で温められ、配管２５から第２三方弁２２の
切り替えにより配管２８を経て地中に設置された地下熱
交換器２０に送られ、該地下熱交換器２０の周りの地中
の土壌または砂利層に放熱して温めた後、配管２９−第
１三方弁２１−ポンプ１８−配管２４−太陽熱集熱パネ
ル１と循環して流れるようになっている。このようにし
て、集熱媒体は、ポンプ１８−配管２４−太陽熱集熱パ
ネル１−配管２５−第２三方弁２２−配管２８−地下熱
交換器２０−配管２９−第１三方弁２１−ポンプ１８−
配管２４−太陽熱集熱パネル１と循環して第２の集熱媒
体の循環経路を形成する。Next, the circulation path of the second heat collecting medium formed between the solar heat collecting panel 1 and the underground heat exchanger 20 installed in the ground will be described.
When the three-way valve 21 is switched to allow the pipe 25 to communicate with the pipe 28 and the pipe 29 to communicate with the pump 18,
The heat collecting medium sent by the pump 18 to the solar heat collecting panel 1 installed on the roof surface of the building is heated by the solar heat collecting panel 1 by solar radiation, and is switched from the pipe 25 to the second three-way valve 22 through the pipe 28. After being sent to the underground heat exchanger 20 installed underground and radiating heat to the underground soil or gravel layer surrounding the underground heat exchanger 20 to warm it, the pipe 29-the first three-way valve 21-the pump 18 -Piping 24-circulates with the solar heat collecting panel 1 and flows. In this way, the heat collecting medium is pump 18-pipe 24-solar heat collecting panel 1-pipe 25-second three-way valve 22-pipe 28-underground heat exchanger 20-pipe 29-first three-way valve 21-pump 18-
It circulates with the pipe 24-the solar heat collecting panel 1 to form a circulation path of the second heat collecting medium.
【００１４】特に、夏季の晴天時の集熱量が多い昼間に
は、建物内又は建物近傍に設置した蓄熱槽１９で太陽熱
集熱パネル１から供給される熱量を十分に蓄熱された後
は、太陽熱集熱パネル１の表面温度が上昇するため、屋
根面の温度も上昇して屋根面の輻射熱が、天井裏から居
室内に入るので冷房負荷の増大を防ぎ、また、太陽電池
と太陽熱集熱パネルとのハイブリッドパネルの場合に
は、この温度上昇による太陽熱集熱パネルに併設された
太陽電池の発電効率の低下を防ぐため、太陽熱集熱パネ
ル１からの温められた集熱媒体を地下熱交換器２０に送
るために第２三方弁２２を切り替える。すると、地下熱
交換器２０に送られた太陽熱集熱パネル１で温められた
集熱媒体は、地下熱交換器２０の周りの地中の土壌また
は砂利層に放熱し、土壌または砂利層に放熱された熱は
拡散してしまい、また、土壌または砂利層の熱容量は大
きいことから過剰の熱を地中に放出することができるの
で、前述の問題を容易に解消することができる。In particular, during the daytime when the amount of heat collected during sunny weather in summer is large, the heat supplied from the solar heat collecting panel 1 is sufficiently stored in the heat storage tank 19 installed in or near the building. Since the surface temperature of the heat collecting panel 1 rises, the temperature of the roof surface also rises, and the radiant heat of the roof surface enters the living room from behind the ceiling, thereby preventing an increase in the cooling load. In order to prevent a decrease in the power generation efficiency of the solar cell attached to the solar heat collecting panel due to the temperature rise, the hybrid heat collecting medium from the solar heat collecting panel 1 is used for the underground heat exchanger. The second three-way valve 22 is switched to send to 20. Then, the heat collection medium heated by the solar heat collecting panel 1 sent to the underground heat exchanger 20 radiates heat to the underground soil or gravel layer around the underground heat exchanger 20 and radiates heat to the soil or gravel layer. The generated heat is diffused, and the heat capacity of the soil or gravel layer is large, so that excessive heat can be released into the ground, so that the above-mentioned problem can be easily solved.
【００１５】一般に、地中の温度は、季節や時間に関係
なく一年中略一定の温度である摂氏１０〜２０度の範囲
内で安定しており、夏季の晴天時の集熱量が多い昼間に
は、太陽熱集熱パネル１で集熱した熱で地中に設置され
た地下熱交換器２０の周りから地中の土壌または砂利層
に放熱し、土壌または砂利層を温めて蓄熱する。そし
て、この地中の土壌または砂利層に蓄熱された熱は、日
射の無い夜間に建物内又は建物近傍に設置した蓄熱槽１
９に蓄熱された熱量が不足したような場合には、日中に
土壌または砂利層に蓄熱された熱を地下熱交換器２０内
の集熱媒体に熱交換し、地下熱交換器２０で温められた
集熱媒体は、配管２９−第１三方弁２１−ポンプ１８−
配管２４−太陽熱集熱パネル１に送られ、太陽熱集熱パ
ネル１から配管２５−第２三方弁２２−配管２６を経て
蓄熱槽１９に内蔵された熱交換器２３に送られて蓄熱槽
１９内の水又は比熱の高い流体を温める。In general, the temperature in the ground is stable within a range of 10 to 20 degrees Celsius, which is substantially constant throughout the year, irrespective of the season and time, and during the daytime when the amount of heat collected on a sunny day in summer is large. Radiates heat from around the underground heat exchanger 20 installed in the ground to the soil or the gravel layer underground by the heat collected by the solar heat collecting panel 1, and warms the soil or the gravel layer to store heat. The heat stored in the underground soil or gravel layer is stored in a heat storage tank 1 installed in or near the building at night without solar radiation.
In the case where the amount of heat stored in the storage medium 9 is insufficient, the heat stored in the soil or the gravel layer during the day is exchanged with the heat collection medium in the underground heat exchanger 20 and warmed by the underground heat exchanger 20. The collected heat medium is supplied to a pipe 29-a first three-way valve 21-a pump 18-
The pipe 24 is sent to the solar heat collecting panel 1 and is sent from the solar heat collecting panel 1 to the heat exchanger 23 built in the heat storage tank 19 through the pipe 25 -the second three-way valve 22 -the pipe 26. Warm the water or fluid with high specific heat.
【００１６】また、冬季は日射も弱い上に太陽熱集熱パ
ネル１の表面に少量の雪が積もった場合には、夏季の間
に土壌または砂利層に蓄熱された熱を地下熱交換器２０
内の集熱媒体に熱交換し、地下熱交換器２０で温められ
た集熱媒体は、配管２９−第１三方弁２１−ポンプ１８
−配管２４−太陽熱集熱パネル１に送られ、太陽熱集熱
パネル１内に巡らされた配管から放熱し、太陽熱集熱パ
ネル１の表面に積もった雪を溶かし、積もった雪によっ
て遮断されていた日射を再度受け太陽熱集熱パネル１内
の集熱媒体を温める。In the winter, when solar radiation is weak and a small amount of snow accumulates on the surface of the solar heat collecting panel 1, the heat stored in the soil or gravel layer during the summer is transferred to the underground heat exchanger 20.
The heat collection medium that has exchanged heat with the heat collection medium in the inside and warmed in the underground heat exchanger 20 is connected to the pipe 29 -the first three-way valve 21 -the pump 18
-Piping 24-Sent to the solar heat collecting panel 1, radiated heat from the pipes circulated in the solar heat collecting panel 1, melted snow accumulated on the surface of the solar heat collecting panel 1, and was interrupted by the accumulated snow. Receiving solar radiation again, the heat collecting medium in the solar heat collecting panel 1 is heated.
【００１７】しかしながら、太陽熱集熱パネル１表面へ
の積雪量が多くなると、地中に蓄熱された熱だけでは、
太陽熱集熱パネル１表面温度の低下を防げない場合が生
じる。そこで、太陽熱集熱パネル１表面に設けられた温
度センサー３０で太陽熱集熱パネル１表面温度を計測
し、積雪により摂氏０度付近まで低下したときに、第１
三方弁２１と第２三方弁２２とを切り替えて、蓄熱槽１
９に蓄熱された熱で集熱媒体を温めて陽熱集熱パネル１
に送り、太陽熱集熱パネル１内に巡らされた配管から放
熱し、太陽熱集熱パネル１の表面に積もった雪を溶か
す。このとき、蓄熱槽１９に十分な蓄熱量がない場合に
は、補助熱源を併用しても良い。補助熱源として、深夜
電力などを利用した電気ヒータやガス、灯油ボイラーな
どを用いることができる。However, when the amount of snow on the surface of the solar heat collecting panel 1 increases, the heat stored in the ground alone will
In some cases, a decrease in the surface temperature of the solar heat collecting panel 1 cannot be prevented. Therefore, the temperature of the solar heat collecting panel 1 is measured by the temperature sensor 30 provided on the surface of the solar heat collecting panel 1, and when the temperature of the solar heat collecting panel 1 decreases to around 0 degrees Celsius due to snow, the first temperature is measured.
By switching between the three-way valve 21 and the second three-way valve 22, the heat storage tank 1
9 heats the heat collecting medium with the heat stored in the heat collecting panel 1
To dissipate heat from the pipes circulated in the solar heat collecting panel 1 and melt snow accumulated on the surface of the solar heat collecting panel 1. At this time, if the heat storage tank 19 does not have a sufficient heat storage amount, an auxiliary heat source may be used together. As the auxiliary heat source, an electric heater, gas, kerosene boiler, or the like using midnight power or the like can be used.
【００１８】[0018]
【発明の効果】以上説明したように、本発明の太陽熱、
地中熱利用システムにおいて、建物の屋根面に設置した
太陽熱集熱パネルと建物内又は建物近傍に設置した蓄熱
槽との間に形成された第１の集熱媒体循環経路と、前記
蓄熱槽と並設して地中に設置した地中熱交換器と前記太
陽熱集熱パネルとの間に形成された第２の集熱媒体循環
経路と、集熱媒体循環経路を２系統で構成していること
から、下記のような効果を奏する。As described above, the solar heat of the present invention,
In the underground heat utilization system, a first heat collection medium circulation path formed between a solar heat collection panel installed on a roof surface of a building and a heat storage tank installed in or near the building, and the heat storage tank. A second heat collecting medium circulation path formed between the underground heat exchanger and the solar heat collecting panel installed side by side and arranged in the ground, and a heat collecting medium circulation path are constituted by two systems. Therefore, the following effects are obtained.
【００１９】１．本発明の太陽熱、地中熱利用システム
の集熱媒体循環経路を２系統とし、内１系統の蓄熱体を
地中に設置した地中熱交換器の周りの地中の土壌または
砂利層を利用することにより、簡単な構成で大容量の蓄
熱体を得ることが出来ると共に、製作コストも低額であ
る。1. The solar heat and underground heat utilization system of the present invention has a heat collection medium circulation path of two systems, and uses an underground soil or gravel layer around an underground heat exchanger in which one of the heat storage bodies is installed underground. By doing so, a large-capacity heat storage body can be obtained with a simple configuration, and the manufacturing cost is low.
【００２０】２．夏季の晴天時の集熱量が多い昼間に
は、地中に設置した地中熱交換器と前記太陽熱集熱パネ
ルとの間に形成された第２の集熱媒体循環経路を使用す
ることで、建物内又は建物近傍に設置した蓄熱槽の熱容
量不足を補うことができるので、温度上昇による太陽熱
集熱パネルに併設された太陽電池の発電効率の低下を防
止することができ、また、日射を受けている屋根面の輻
射熱が天井裏から居室内に入るので冷房負荷が増大を防
ぐことができる。2. During the daytime when the amount of heat collected during sunny weather in summer is large, by using the second heat collecting medium circulation path formed between the underground heat exchanger installed in the ground and the solar heat collecting panel, It can compensate for the lack of heat capacity of the heat storage tank installed in or near the building, which can prevent the power generation efficiency of the solar cell attached to the solar heat collecting panel from decreasing due to temperature rise, and Since the radiant heat of the roof surface enters the living room from above the ceiling, the cooling load can be prevented from increasing.
【００２１】３．日照量の少なく積雪のある冬季には、
地中に設けた熱交換器によって該熱交換器の周りの地中
の土壌または砂利層に夏季の間に蓄熱された熱で、地中
に設けた熱交換器を循環して流れる集熱媒体を温めて太
陽熱集熱パネルに送り、太陽熱集熱パネル内に巡らされ
た配管から放熱して、太陽熱集熱パネルの表面に積もっ
た雪を溶かすことができる。3. In winter with little sunshine and snowfall,
A heat collection medium that circulates through a heat exchanger provided in the ground with heat stored in the soil or gravel layer around the heat exchanger during the summer by a heat exchanger provided in the ground. Is heated and sent to the solar heat collecting panel, and heat is radiated from the pipes circulated in the solar heat collecting panel to melt snow accumulated on the surface of the solar heat collecting panel.
【図１】従来公知の太陽エネルギ利用装置の概略回路
図。FIG. 1 is a schematic circuit diagram of a conventionally known solar energy utilization device.
【図２】本発明の太陽熱、地中熱利用システムの概略回
路図。FIG. 2 is a schematic circuit diagram of a solar and underground heat utilization system of the present invention.
１…太陽熱集熱パネル、２…太陽電池、３…蓄熱器、４
…蓄熱器、５…熱交換器、６…熱交換器、７、８、９、
１０、１１…配管、１２…三方弁、１３…三方弁、１４
…温度センサー、１５…判定器、１６…インバータ、１
７…商用電源、１８…ポンプ、１９…蓄熱器、２０…地
下熱交換器、２１…第１三方弁、２２…第２三方弁、２
３…熱交換器、２４〜２９…配管、３０…温度センサ
ー。DESCRIPTION OF SYMBOLS 1 ... Solar heat collection panel, 2 ... Solar cell, 3 ... Heat storage, 4
... heat storage device, 5 ... heat exchanger, 6 ... heat exchanger, 7, 8, 9,
10, 11 ... piping, 12 ... three-way valve, 13 ... three-way valve, 14
... Temperature sensor, 15 ... Determiner, 16 ... Inverter, 1
7 ... commercial power supply, 18 ... pump, 19 ... regenerator, 20 ... underground heat exchanger, 21 ... first three-way valve, 22 ... second three-way valve, 2
3: heat exchanger, 24-29: pipe, 30: temperature sensor.
Claims (3)
ルと建物内又は建物近傍に設置した蓄熱槽との間に形成
された第１の集熱媒体循環経路と、前記蓄熱槽と並設し
て地中に設置した地中熱交換器と前記太陽熱集熱パネル
との間に形成された第２の集熱媒体循環経路とで構成し
た太陽熱、地中熱利用システムにおいて、両集熱媒体循
環経路の分岐箇所に経路切り替え用の三方弁を設け、各
集熱媒体循環経路をそれぞれ単独使用又は併用可能とし
たことを特徴とする太陽熱、地中熱利用システム。1. A first heat collection medium circulation path formed between a solar heat collection panel installed on a roof surface of a building and a heat storage tank installed in or near the building, and a juxtaposition with the heat storage tank. And a second heat collecting medium circulation path formed between the underground heat exchanger installed underground and the solar heat collecting panel, the solar heat and ground heat utilizing system, A solar heat and underground heat utilization system, wherein a three-way valve for switching a path is provided at a branch point of a circulation path, and each heat collection medium circulation path can be used alone or in combination.
熱容量を越える日射を受けた場合に、前記三方弁の切り
替えにより前記第２の集熱媒体循環経路の地中熱交換器
から放熱することを特徴とする請求項１に記載の太陽
熱、地中熱利用システム。2. When the solar heat collecting panel receives insolation exceeding the heat storage capacity of the heat storage tank, heat is radiated from the underground heat exchanger of the second heat collecting medium circulation path by switching the three-way valve. The solar heat and underground heat utilization system according to claim 1, wherein:
前記第２の集熱媒体循環経路の地中熱交換器で地中に蓄
熱された熱を太陽熱集熱パネル内の配管から放熱するこ
とを特徴とする請求項１に記載の太陽熱、地中熱利用シ
ステム。3. When snow is accumulated on the solar heat collecting panel,
2. The solar heat and the geothermal heat according to claim 1, wherein heat stored in the ground by the geothermal heat exchanger in the second heat collecting medium circulation path is radiated from a pipe in a solar heat collecting panel. Usage system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000267372A JP2002081763A (en) | 2000-09-04 | 2000-09-04 | Solar heat and underground heat utilizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000267372A JP2002081763A (en) | 2000-09-04 | 2000-09-04 | Solar heat and underground heat utilizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002081763A true JP2002081763A (en) | 2002-03-22 |
Family
ID=18754312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000267372A Pending JP2002081763A (en) | 2000-09-04 | 2000-09-04 | Solar heat and underground heat utilizing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002081763A (en) |
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