JPH0218445Y2 - - Google Patents
Info
- Publication number
- JPH0218445Y2 JPH0218445Y2 JP15118585U JP15118585U JPH0218445Y2 JP H0218445 Y2 JPH0218445 Y2 JP H0218445Y2 JP 15118585 U JP15118585 U JP 15118585U JP 15118585 U JP15118585 U JP 15118585U JP H0218445 Y2 JPH0218445 Y2 JP H0218445Y2
- Authority
- JP
- Japan
- Prior art keywords
- cistern
- heating medium
- heat
- medium
- solar
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims 1
- 238000001704 evaporation Methods 0.000 description 10
- 230000008020 evaporation Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
-
- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、熱媒を用いた太陽集熱装置の熱媒用
シスターンを改良することにあり、改良すること
により集熱系路の圧力上昇を緩和するとともに蒸
発による高価の熱媒の散逸をも防止する太陽集熱
装置に関するものである。[Detailed description of the invention] [Industrial application field] The present invention is to improve the heat medium cistern of a solar heat collector using a heat medium, and by improving the heat medium cistern, the pressure increase in the heat collection path can be reduced. This invention relates to a solar heat collecting device that alleviates heat transfer and also prevents dissipation of expensive heat medium due to evaporation.
従来においての太陽集熱装置は、主に凍結防止
のために不凍液などの熱媒が用いられ、熱交換器
を貯湯槽などに組み込ませて間接的に加熱するこ
とが必要であつた。
Conventional solar heat collectors mainly use a heat medium such as antifreeze to prevent freezing, and it is necessary to incorporate a heat exchanger into a hot water storage tank or the like for indirect heating.
そして、太陽集熱器と貯湯槽に組み込まれた熱
交換器とを熱媒ポンプをもつて不凍液等の熱媒が
循環させられていた。これら集熱系路における太
陽集熱器と熱交換器間には熱媒用シスターンを有
し、例えば実開昭58−188547号による如く、第３
図及び第４図に示すように、熱媒用シスターンが
大気に開放されていた場合と、熱媒用シスターン
が完全密閉された場合とがあつた。 A heat medium such as antifreeze was circulated between the solar heat collector and the heat exchanger built into the hot water storage tank using a heat medium pump. A cistern for heat medium is provided between the solar collector and the heat exchanger in these heat collection system paths, and as shown in Utility Model Application Publication No. 58-188547, for example,
As shown in the figure and FIG. 4, there were cases where the heat medium cistern was open to the atmosphere and cases where the heat medium cistern was completely sealed.
なお、図中１′，１″は太陽集熱器であり、２′，
２″は貯湯槽であつた、３′，３″は該貯湯槽に組
み込まれた間接的に加熱させるための熱交換器で
ある。４′，４″は熱媒用シスターンであつて、
４′は開放型であり、４″は完全密閉型である。
５′，５″は熱媒ポンプ、６′，６″は集熱系路、
８′，８″は熱媒である。 In the figure, 1', 1'' are solar collectors, and 2', 1'' are solar collectors.
2'' is a hot water storage tank, and 3' and 3'' are heat exchangers for indirect heating built into the hot water storage tank. 4′, 4″ are cisterns for heat medium,
4' is an open type, and 4'' is a completely closed type.
5', 5'' are heat medium pumps, 6', 6'' are heat collection system paths,
8' and 8'' are heating media.
しかしながら、このように第３図に示すような
従来の技術にあつては、熱媒用シスターン４′が
大気に開放されているため、熱媒用シスターン内
の熱媒８′は次第に蒸発して散逸し減少してしま
つた。そして、その蒸発する量は熱媒８′の温度
が高くなるとそれだけ多くなつた。
However, in the conventional technology as shown in FIG. 3, since the heating medium cistern 4' is open to the atmosphere, the heating medium 8' in the heating medium cistern gradually evaporates. It has dissipated and decreased. The amount of evaporation increases as the temperature of the heating medium 8' increases.
また、第４図に示すような従来技術にあつて
は、熱媒用シスターン４″が密閉型であつたが、
このような場合には熱媒８″の温度が上昇すると
液面がL2″に上昇し、上部空間を少なくするため、
集熱系路６″内の圧力が上昇させられることにな
つて部材の耐圧性能を上げる必要があり、コスト
高となつた。 In addition, in the conventional technology as shown in FIG. 4, the heating medium cistern 4'' was of a closed type.
In such a case, when the temperature of the heating medium 8'' rises, the liquid level rises to L 2 '', reducing the head space.
Since the pressure inside the heat collection path 6'' is increased, it is necessary to improve the pressure resistance of the members, resulting in an increase in cost.
そこで、本考案は、熱媒を用いた太陽集熱装置
の熱媒用シスターンを改良することによつて集熱
系路の圧力上昇を緩和するとともに、蒸発による
熱媒の散逸を防止することを目的としている。 Therefore, the present invention aims to alleviate the pressure increase in the heat collection path and prevent the heat medium from dissipating due to evaporation by improving the heat medium cistern of a solar heat collector using a heat medium. The purpose is
本考案は、上記の目的を達成するために、熱媒
を内包する太陽集熱器と、該太陽集熱器の熱媒出
口側に接続された熱媒用シスターンと、貯湯槽に
内装され前記太陽集熱器および熱媒用シスターン
に接続された熱交換器と、これら機器内に熱媒を
循環させる熱媒ポンプと、を備えた太陽集熱装置
に、前記熱媒用シスターンの気相部を大気と連通
する開口部と、該開口部を開閉する蓋と、前記熱
媒用シスターンに貯溜されている熱媒の温度を検
知し効知結果に基づいて前記蓋を開閉する開閉手
段と、を設け、該開閉手段を熱媒温度が所定の温
度を越えると蓋を閉じるように構成したものであ
る。
In order to achieve the above object, the present invention includes a solar collector containing a heating medium, a cistern for the heating medium connected to the heating medium outlet side of the solar collector, and a cistern installed inside a hot water storage tank and installed in the solar collector. A solar heat collector equipped with a heat exchanger connected to a solar heat collector and a heat medium cistern, and a heat medium pump that circulates a heat medium within these devices, a gas phase portion of the heat medium cistern. an opening that communicates with the atmosphere, a lid that opens and closes the opening, and an opening/closing means that detects the temperature of the heating medium stored in the heating medium cistern and opens and closes the lid based on the effectiveness result. and the opening/closing means is configured to close the lid when the temperature of the heating medium exceeds a predetermined temperature.
以下、図面により説明すると、第１図に示す如
く、１は太陽集熱器、２は貯湯槽であつて、３は
該貯湯槽２に組み込まれた熱交換器である。太陽
集熱器１と熱交換器３とは、熱媒用シスターン４
及び熱媒ポンプ５を介在させて、それらに不凍液
等の熱媒を該熱媒ポンプの稼動により循環させる
集熱系路６を成している。 The following will be explained with reference to the drawings. As shown in FIG. 1, 1 is a solar collector, 2 is a hot water storage tank, and 3 is a heat exchanger built into the hot water storage tank 2. The solar collector 1 and the heat exchanger 3 are the heat medium cistern 4.
and a heat medium pump 5 are interposed therebetween to form a heat collection system path 6 in which a heat medium such as antifreeze fluid is circulated through the operation of the heat medium pump.
そこで、熱媒用シスターン４について詳述する
と、第２図に示す如く、気相部を大気に連通する
開口部７を有した熱媒用シスターン４であつて、
該熱媒用シスターン４内に流入口１２より流入
し、流出口１３より流出する熱媒８が貯留する。
また、該熱媒用シスターン４内には熱媒８の温度
により伸縮するバネ９を開閉手段として設置し、
該バネ９端には熱媒用シスターン４の開口部７を
開閉する蓋１０を設け、該蓋１０はパツキン１１
を有し、上記バネ９が熱媒８による縮まる温度で
縮まつて、蓋１０を閉じることになり、熱媒８の
蒸発して散逸することを防止させる。 Therefore, to explain the heat medium cistern 4 in detail, as shown in FIG.
The heat medium 8 flowing into the heat medium cistern 4 through the inlet 12 and flowing out through the outlet 13 is stored.
Further, a spring 9 that expands and contracts depending on the temperature of the heating medium 8 is installed in the heating medium cistern 4 as an opening/closing means.
A lid 10 for opening and closing the opening 7 of the heating medium cistern 4 is provided at the end of the spring 9, and the lid 10 is attached to the gasket 11.
The spring 9 is contracted at the temperature at which the heating medium 8 is contracted, and the lid 10 is closed, thereby preventing the heating medium 8 from evaporating and dissipating.
次に、以上の構成よりなる熱媒用シスターン４
についての作用を説明すると、バネ９は熱媒用シ
スターン４内の熱媒８の温度が所定の温度T2以
上になると縮んで蓋１０が開口部７を閉じるよう
になり、熱媒８の温度が下がつてT2未満になる
とバネ９は伸びて蓋１０が開口部７を開けるよう
になる。
Next, the heat medium cistern 4 having the above configuration is
To explain the action of the spring 9, when the temperature of the heating medium 8 in the heating medium cistern 4 reaches a predetermined temperature T2 or higher, the spring 9 contracts and the lid 10 closes the opening 7, and the temperature of the heating medium 8 decreases. When T falls below T 2 , the spring 9 stretches and the lid 10 opens the opening 7 .
そこで、太陽集熱装置の運転開始時の熱媒用シ
スターン４内の液面をL1、温度T1、熱媒用シス
ターン内液面上部の空間部分の（気相部）の体積
V1、圧力P1とし、太陽集熱器１により太陽熱で
加熱されると熱媒８の温度が上昇し、熱媒用シス
ターン４に流入した熱媒８によりバネ９が縮む温
度T2となつたときの液面をL2、体積V2、圧力P2
とし、さらに、熱媒が太陽集熱器１で加熱され熱
媒８が最高温度T3となつたときの液面をL3、体
積V3、圧力P3とすると、熱媒の温度がT2となつ
たとき、蓋１０が閉じ、密閉型熱媒用シスターン
を形成することになる。このときの圧力P2は
P2＝P1
である。 Therefore, the liquid level in the heating medium cistern 4 at the start of operation of the solar heat collector is L 1 , the temperature T 1 , and the volume (gas phase part) of the space above the liquid level in the heating medium cistern
V 1 and pressure P 1 , and when heated by solar heat from the solar collector 1, the temperature of the heating medium 8 rises, and reaches a temperature T 2 at which the spring 9 contracts due to the heating medium 8 flowing into the heating medium cistern 4. When the liquid level is L 2 , volume V 2 , pressure P 2
Further, if the liquid level when the heating medium is heated by the solar collector 1 and the heating medium 8 reaches the maximum temperature T 3 is L 3 , the volume V 3 and the pressure P 3 , then the temperature of the heating medium is T 2 , the lid 10 closes to form a closed heat medium cistern. The pressure P 2 at this time is
P2 = P1 .
そして、この状態で、熱媒の温度T3まで上昇
したときの熱媒用シスターン内空間の圧力P3は
次式であらわされる。 In this state, the pressure P 3 in the heating medium cistern internal space when the temperature of the heating medium rises to T 3 is expressed by the following equation.
P3＝V2／V3・P2＝V2／V3・P1 ……(1)
それに対して、熱媒用シスターン形状が第４図
に示す如き従来の密閉型の場合は次式となる。 P 3 =V 2 /V 3・P 2 =V 2 /V 3・P 1 ...(1) On the other hand, if the heat medium cistern shape is a conventional closed type as shown in Figure 4, the following formula becomes.
P3＝V1／V3・P1 ……(2)
そこで、
V1＞V2
であるために、(1)式及び(2)式より
V1／V3・P1＞V2／V3・P1
となり、本考案の熱媒用シスターンの方が圧力が
低くなる。 P 3 =V 1 /V 3・P 1 ...(2) Therefore, since V 1 >V 2 , from equations (1) and (2), V 1 /V 3・P 1 >V 2 / V 3 · P 1 , and the pressure is lower in the heat medium cistern of the present invention.
また、バネ９が縮んで蓋１０を閉じる温度T2
は、熱媒の蒸発現象が著しくなる温度を選定する
ため蒸発による散逸を現象することができること
になる。つまり、蓋が閉じられるまでは、熱媒は
蒸発するが、系路内の圧力上昇はなくなり、蓋が
閉じられたあとは、圧力は上昇するが、熱媒の蒸
発飛散は抑制される。熱媒の蒸発は低温域より高
温域で一般に激しいから高温域での蒸発の抑制が
効果的である。したがつて、熱媒の散逸量の減少
と運転圧力の低下が共に可能となる。 Also, the temperature at which the spring 9 contracts and closes the lid 10 is T 2
Since the temperature at which the evaporation phenomenon of the heat medium becomes significant is selected, dissipation due to evaporation can be suppressed. That is, until the lid is closed, the heating medium evaporates, but the pressure within the system does not rise. After the lid is closed, the pressure increases, but the evaporation and scattering of the heating medium is suppressed. Evaporation of the heating medium is generally more intense in the high temperature range than in the low temperature range, so suppressing evaporation in the high temperature range is effective. Therefore, it is possible to reduce both the amount of heat medium dissipated and the operating pressure.
本考案によれば、熱媒の温度が所定の温度に達
したのちに蓋が閉じられるので、熱媒の熱膨脹に
よる気相部の体積減少に伴う圧力上昇量を低減さ
せることが可能になるとともに、熱媒の蒸発が激
しい高温域では装置を密閉状態で運転することが
可能になり、装置の耐圧性能（許容圧力）を低下
させかつ、熱媒の蒸発による減少を抑制する効果
がある。
According to the present invention, since the lid is closed after the temperature of the heating medium reaches a predetermined temperature, it is possible to reduce the amount of pressure increase caused by the volume reduction of the gas phase due to thermal expansion of the heating medium. In high-temperature ranges where the heat medium evaporates rapidly, the device can be operated in a closed state, which has the effect of reducing the pressure resistance (allowable pressure) of the device and suppressing the decrease due to evaporation of the heat medium.
第１図は、本考案の太陽集熱装置構成図であ
り、第２図は、該太陽集熱装置の熱媒用シスター
ン構造図である。第３図は、従来の開放型熱媒用
シスターンを有する太陽集熱装置構成図であつ
て、第４図は、従来の完全密閉型熱媒用シスター
ンを有する太陽集熱装置構成図である。
１……太陽集熱器、２……貯湯槽、３……熱交
換器、４……熱媒用シスターン、５……熱媒ポン
プ、６……集熱系路、７……開口部、８……熱
媒、９……バネ、１０……蓋、１１……パツキ
ン、１２……流入口、１３……流出口。
FIG. 1 is a configuration diagram of a solar heat collector of the present invention, and FIG. 2 is a diagram of a cistern structure for a heat medium of the solar heat collector. FIG. 3 is a block diagram of a solar heat collector having a conventional open type heat medium cistern, and FIG. 4 is a block diagram of a solar heat collector having a conventional completely closed type heat medium cistern. 1... Solar collector, 2... Hot water storage tank, 3... Heat exchanger, 4... Cistern for heat medium, 5... Heat medium pump, 6... Heat collection system path, 7... Opening, 8... Heat medium, 9... Spring, 10... Lid, 11... Packing, 12... Inlet, 13... Outlet.
Claims (1)
熱媒出口側に接続された熱媒用シスターンと、貯
湯槽に内装され前記太陽集熱器および熱媒用シス
ターンに接続された熱交換器と、これら機器内に
熱媒を循環させる熱媒ポンプと、を備えた太陽集
熱装置において、前記熱媒用シスターンの気相部
を大気と連通する開口部と、該開口部を開閉する
蓋と、前記熱媒用シスターンに貯溜されている熱
媒の温度を検知し検知結果に基づいて前記蓋を開
閉する開閉手段と、が設けられており、該開閉手
段は熱媒温度が所定の温度を超えると蓋を閉じる
ように構成されていることを特徴とする太陽集熱
装置。 a solar collector containing a heating medium; a heating medium cistern connected to the heating medium outlet side of the solar collector; and a heating medium cistern installed in a hot water storage tank and connected to the solar collector and the heating medium cistern. In a solar heat collecting device comprising a heat exchanger and a heat medium pump that circulates a heat medium within these devices, an opening for communicating a gas phase portion of the heat medium cistern with the atmosphere; A lid that opens and closes, and an opening and closing means that detects the temperature of the heating medium stored in the heating medium cistern and opens and closes the lid based on the detection result, and the opening and closing means detects the temperature of the heating medium stored in the heating medium cistern. A solar heat collector characterized in that the lid is configured to close when a predetermined temperature is exceeded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15118585U JPH0218445Y2 (en) | 1985-10-02 | 1985-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15118585U JPH0218445Y2 (en) | 1985-10-02 | 1985-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6260866U JPS6260866U (en) | 1987-04-15 |
| JPH0218445Y2 true JPH0218445Y2 (en) | 1990-05-23 |
Family
ID=31068023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15118585U Expired JPH0218445Y2 (en) | 1985-10-02 | 1985-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0218445Y2 (en) |
-
1985
- 1985-10-02 JP JP15118585U patent/JPH0218445Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6260866U (en) | 1987-04-15 |
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