JPS5818057A - Solar-heat collecting pipe - Google Patents
Solar-heat collecting pipeInfo
- Publication number
- JPS5818057A JPS5818057A JP56116785A JP11678581A JPS5818057A JP S5818057 A JPS5818057 A JP S5818057A JP 56116785 A JP56116785 A JP 56116785A JP 11678581 A JP11678581 A JP 11678581A JP S5818057 A JPS5818057 A JP S5818057A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- outer tube
- inner tube
- heat collecting
- heat
- 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
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
-
- 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
- Y02E10/44—Heat exchange systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、内部を真空とした透光性の外管内に熱媒体路
とな゛る内管を配設して成る真空管形の太陽熱集熱管に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum-tube type solar heat collection tube, which has an inner tube serving as a heat medium path arranged inside a translucent outer tube whose interior is evacuated.
従来、この種の太陽熱集熱管１は、第１図に示すように
、ガラスなどの透光性の外管２と、外管２内に同軸的に
配設されて熱媒体路となる内管３とから成シ、内管３は
銅管から形成されておシ、これにアルミニラＪの集熱フ
ィン４が熱伝的に取付けられている。外管２の両端には
内部を閉塞する端板５，５が取付けられている。仁の集
熱管１におけ−る大きな技術的問題は、ガラスなどの外
管２と銅などの内管３との、熱膨張率と熱収縮率とが著
しく相違するため′に、外管２の端板５，５に内管３の
両端を固着することができないことにあった。これを解
消するために、端板５，５にそれぞれ伸縮自在な継手６
，６を設け、継手６，６の端部５ａ、ｆｉａを内管３に
ロウ付して真空を維持しているのが現実であった。Conventionally, this type of solar heat collecting tube 1 has, as shown in FIG. 1, a translucent outer tube 2 made of glass or the like, and an inner tube coaxially disposed within the outer tube 2 and serving as a heat transfer path. 3, the inner tube 3 is formed from a copper tube, and heat collecting fins 4 made of aluminum oxide J are attached thereto for heat conduction. End plates 5, 5 are attached to both ends of the outer tube 2 to close the inside. A major technical problem with the heat collecting tube 1 is that the outer tube 2 made of glass or the like and the inner tube 3 made of copper or the like have significantly different coefficients of thermal expansion and contraction. The problem was that both ends of the inner tube 3 could not be fixed to the end plates 5, 5 of the inner tube. In order to solve this problem, telescopic joints 6 are installed on the end plates 5, 5, respectively.
, 6 are provided, and the ends 5a and fia of the joints 6, 6 are brazed to the inner tube 3 to maintain the vacuum.
これによれば、内管３の伸縮を考慮して設計しなければ
ならず、集熱フィン４が外管２の端板５と接触しないよ
うに短く形成されていた。外管２の両端に位置して′集
熱フィン４を設けることができないのｆ１収熱効率を向
上できる余剰スペースが活用されないうえ、この部分か
らの放熱を防ぐために反射被覆７を形成する必要があっ
た。また、内管３の伸縮力に耐えられるように、継手端
部６ａ、６ａをロウ付するためには、高度な熟練技術が
要求されるものである。仮シに十分なロウ付がなされて
も、長年使用による伸縮に伴なって、ロケ付部分の劣化
が著しく進行するものである。According to this, the design must take into consideration the expansion and contraction of the inner tube 3, and the heat collecting fins 4 are formed short so as not to come into contact with the end plate 5 of the outer tube 2. Since the heat collecting fins 4 cannot be provided at both ends of the outer tube 2, the surplus space that could improve the heat collection efficiency is not utilized, and it is necessary to form a reflective coating 7 to prevent heat radiation from these parts. Ta. Furthermore, highly skilled techniques are required to braze the joint ends 6a, 6a so as to withstand the expansion and contraction force of the inner tube 3. Even if the temporary braze is sufficiently brazed, the deterioration of the brazed portion will progress significantly as the temporary braze expands and contracts over many years.
さらに、上記実情によりヤ、コス）高となっていた。Furthermore, due to the above-mentioned circumstances, the cost was high.
しかして、本発明は、上記欠点を解消することを目的と
するものである。以下、本発明を図示する一実施例に基
いて説明する。Therefore, the present invention aims to eliminate the above-mentioned drawbacks. The present invention will be described below based on an illustrated embodiment.
第２図は、本発明鈍係る太陽熱集熱管の一実抱”例を示
す斜視図、第３図は中間省略した同断面図である。図中
、同一符号は同等部分を示すものであシ重複説明を省略
する。外管２は、一端の開口部に端板５が設けられ、他
端に管内を閉塞する有底部８が設けられている。外管２
には、その一端の端板５に内管３の一方両端３ａ、３ｂ
が密封固着されて外方へ突出している。内管３は、その
軸線方向に複数本並列されるとともに、外管２内の他力
両端３ｃ、３ｄにはわん曲部９がそれぞれ設けられてお
シ、−力両端３ａ、３ｂ間の内部には熱媒体循環通路が
形成される。内管３は、全体として細長の略Ｕ字状を呈
し、そのわん曲部９は、銅の０字ベントを銅ロウ付など
によって接合されて形成される。内管３には、差動量に
連なって集熱フィン４が設けられている。集熱フィン４
は、その一端４ａが端板４の内面から僅かに離間され、
曲
他端４ｂがわ〜郡９め手前側まで近接して吹付けられる
。集熱フィン４をアルミニウムの押出し材で実施する場
合、には、わ孕９には別に成型した、集熱フ１ン４′が
吹付−けられる。また、わん曲部９の集熱フィン４′の
端部は、外管２の有底部８内壁に対して非接触状態で配
設されるみすなわち、内管３の両端３ａ、３ｂが外管２
に固着されて位置固定されているので、集熱などによる
内管３の熱膨張と熱収縮に対してわん曲部９側を伸縮さ
せ、この伸縮に対してわん曲部９側が外管２の有底部８
に接触して破壊しないように間ＦＪ１（１−設けて、非
接触状・態が設定される。わん曲部９に集熱フィン４．
′を設けない場谷には、わん曲部９のＵ７端部を基準と
して上記間隙が設定される。なお、図示しないが、内管
２の並列する間に介在子る集熱フィン４には、吸熱効率
を考慮して外管２の下部に反射鏡を設けておく。Fig. 2 is a perspective view showing an actual example of a solar heat collecting tube according to the present invention, and Fig. 3 is a cross-sectional view of the same with the middle portion omitted. Duplicate explanation will be omitted.The outer tube 2 is provided with an end plate 5 at an opening at one end, and a bottomed portion 8 that closes the inside of the tube at the other end.Outer tube 2
In this case, both ends 3a and 3b of the inner tube 3 are attached to the end plate 5 at one end.
is sealed and protrudes outward. A plurality of inner tubes 3 are arranged in parallel in the axial direction, and curved portions 9 are provided at both ends 3c and 3d of the outer tube 2. A heat medium circulation passage is formed in the. The inner tube 3 has an elongated substantially U-shape as a whole, and the curved portion 9 is formed by joining copper O-shaped bents by copper brazing or the like. The inner tube 3 is provided with heat collecting fins 4 connected to the differential amount. Heat collection fin 4
is such that its one end 4a is slightly spaced from the inner surface of the end plate 4,
It is sprayed close to the other end 4b of the song to the front side of the 9th section. When the heat collecting fins 4 are made of extruded aluminum, a separately molded heat collecting fin 1 4' is sprayed onto the wafer 9. Further, the ends of the heat collecting fins 4' of the curved portion 9 are disposed in a non-contact state with respect to the inner wall of the bottomed portion 8 of the outer tube 2. That is, both ends 3a and 3b of the inner tube 3 are connected to the inner wall of the bottomed portion 8 of the outer tube 2.
Since it is fixed in position, the curved portion 9 side expands and contracts in response to thermal expansion and contraction of the inner tube 3 due to heat collection, etc., and the curved portion 9 side expands and contracts against the expansion and contraction of the outer tube 2. Bottomed part 8
A non-contact state is set by providing a gap FJ1 (1-) to avoid damage due to contact with the heat collecting fins 4.
The above-mentioned gap is set with the U7 end of the curved portion 9 as a reference in the case where the spacer ' is not provided. Although not shown, the heat collecting fins 4 interposed between the inner tubes 2 arranged in parallel are provided with a reflecting mirror at the lower part of the outer tube 2 in consideration of heat absorption efficiency.
この実施例によれば、外管２に有底部８を設けて成型し
たので、外管２の成型が容易嫌うえ、従 、来有底部８
側に端板Ｓｆ：取付けしていた作業が不要となった。ま
た、外管２の開？部側から内管３のわん曲部９＠を挿通
して、外管内に収納し、端板５を開Ｏ部に封着しつつ真
空にするだけの作業で足シ、一端のみの封着作業で足シ
る利点がある。According to this embodiment, since the outer tube 2 is molded with the bottomed portion 8, it is easy to mold the outer tube 2, and the bottomed portion 8 is not easily molded.
End plate Sf on the side: The installation work is no longer necessary. Also, is the outer tube 2 open? Insert the curved part 9 of the inner tube 3 from the O part side, store it in the outer pipe, seal the end plate 5 to the O part, and create a vacuum while sealing only one end. It has the advantage of straining your legs while working.
上記実施例において、わん曲部を０字ベントで構成した
ものを説明したが、一本の内管を折曲してわん曲部を構
成してもよい。また、わん曲部まで堰付けできる集熱フ
ィンを一体成型して実施することが可能である。In the above embodiments, the curved portion is constructed from a zero-shaped bent, but the curved portion may be constructed by bending a single inner tube. Furthermore, it is possible to integrally mold heat collecting fins that can be dammed up to the curved portion.
また、外管は−７５を有底部とした試験管状のものにつ
いて説明したが、従来のごとく両端を端板で固着するも
のの実施を妨げないものである。Furthermore, although the outer tube has been described as a test tube-like tube with a bottom of -75, it is possible to fix both ends with end plates as in the conventional case.
しかして本発明によれば、内管の熱膨張と熱収縮をわん
曲部側の伸縮によって吸収することができた。そのため
に内管の一方両端の固着に際しては、外管両端に固着す
る必要がないはかシか、内管の伸縮移動を考慮して設計
やロウ封する必要がなく、通常のロウ付技術で足シ、作
業負担を著しく軽減できる。また、従来のどとくロウ付
部分に対して伸縮移動力が加わらないので、ロウ付部分
の劣化を防ぐことができ、上記製造技術の簡略化と相俟
って・製品寿命の甲−化を可能とした。According to the present invention, however, the thermal expansion and contraction of the inner tube can be absorbed by the expansion and contraction of the curved portion side. Therefore, when fixing one and both ends of the inner tube, there is no need to fix it to both ends of the outer tube, or there is no need to design or solder seal with consideration to the expansion and contraction movement of the inner tube, and normal brazing technology can be used. It can significantly reduce foot strain and work burden. In addition, since no expansion or contraction force is applied to the conventional brazed part, deterioration of the soldered part can be prevented, and together with the simplification of the manufacturing technology mentioned above, it is possible to extend the product life. And so.
また、内管を並列させるとともにわん曲部からも収態す
るように構成できるうえ、外管、端部にも集熱フィ゛ン
を介在させることができるので、吸熱効率を著しく向上
させることができる。特にわん曲部が従来支持部材等に
支持されて収態できない状態にあらたが、これを完全に
解消できた。In addition, the inner tubes can be arranged in parallel and the tubes can be configured to converge from the curved portion, and heat collecting fins can also be interposed at the outer tube and the ends, so heat absorption efficiency can be significantly improved. can. In particular, the curved portion was conventionally supported by a support member and could not be accommodated, but this has been completely resolved.
さらに、−個所のみの封着て足シるので、製造工程が簡
略化され、製造コストヲ著しく引下げることができる。Furthermore, since only the negative portions need to be sealed, the manufacturing process can be simplified and manufacturing costs can be significantly reduced.
第１図は従来の太陽熱集熱管の中間省略した断面図、第
２図は本発明に係る太陽熱集熱管の一実施例を示す斜視
図、第３図は一部省略した同断面図である。□
１・・・太陽熱集熱管、２・・・外管、３・・・内管、
４・・・集熱フィン、８・・・有底部、９・・・わん曲
部。
特許出願人 株式会社白山製作所
第１図FIG. 1 is a cross-sectional view of a conventional solar heat collecting tube with the middle portion omitted, FIG. 2 is a perspective view showing an embodiment of the solar heat collecting tube according to the present invention, and FIG. 3 is a partially omitted cross-sectional view of the same. □ 1...Solar heat collection tube, 2...Outer tube, 3...Inner tube,
4... Heat collection fin, 8... Bottomed part, 9... Curved part. Patent applicant: Hakusan Seisakusho Co., Ltd. Figure 1
Claims (1)
外管両端から両端ｔｑ出せしめて内部を熱媒体路となし
た内管とから表る太陽熱の集熱管゛において、わん曲部
を介して並列した内管の両端を外管の一端に固着して突
出せしめ、わん曲部を外管の他端に対して非接触状態で
伸縮自在に配設したことを特徴とする太陽熱集熱管。In a solar heat collection tube consisting of a transparent vacuum outer tube and an inner tube provided inside the outer tube with both ends tq extending out from both ends of the outer tube and the inside serving as a heat medium path, the curved portion A solar heat collector characterized in that both ends of the inner tubes arranged in parallel are fixed to one end of the outer tube so as to protrude, and the curved part is arranged to be expandable and contractible in a non-contact state with respect to the other end of the outer tube. heat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56116785A JPS5818057A (en) | 1981-07-25 | 1981-07-25 | Solar-heat collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56116785A JPS5818057A (en) | 1981-07-25 | 1981-07-25 | Solar-heat collecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5818057A true JPS5818057A (en) | 1983-02-02 |
Family
ID=14695640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56116785A Pending JPS5818057A (en) | 1981-07-25 | 1981-07-25 | Solar-heat collecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5818057A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538229A (en) * | 2010-12-31 | 2012-07-04 | 卓卫民 | Heat collecting system with double-row solar vacuum tube matrix |
| CN111238057A (en) * | 2020-01-09 | 2020-06-05 | 内蒙古工业大学 | Medium-temperature solar heat conduction pipe device |
-
1981
- 1981-07-25 JP JP56116785A patent/JPS5818057A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538229A (en) * | 2010-12-31 | 2012-07-04 | 卓卫民 | Heat collecting system with double-row solar vacuum tube matrix |
| CN111238057A (en) * | 2020-01-09 | 2020-06-05 | 内蒙古工业大学 | Medium-temperature solar heat conduction pipe device |
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