JPS6071858A - Solar heat collecting device - Google Patents
Solar heat collecting deviceInfo
- Publication number
- JPS6071858A JPS6071858A JP58181299A JP18129983A JPS6071858A JP S6071858 A JPS6071858 A JP S6071858A JP 58181299 A JP58181299 A JP 58181299A JP 18129983 A JP18129983 A JP 18129983A JP S6071858 A JPS6071858 A JP S6071858A
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- coating layer
- resin coating
- yellowing
- solar 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
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
- F24S80/52—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by the material
-
- 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
- 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】
（イ）産業上の利用分野
この発明は例えば真空ガラス管型太陽熱集熱器のように
、透光性のガラス管内に集熱部材を収納した太陽熱集熱
器に関するものである。Detailed Description of the Invention (a) Industrial Application Field This invention relates to a solar heat collector, such as a vacuum glass tube type solar heat collector, in which a heat collecting member is housed in a translucent glass tube. It is.
（ロ）従来技術
近年、太陽熱集熱器は集熱効率に優れた真空ガラス管型
のものが広く使用されるようになってきた。しかしなが
ら、真空ガラス管型のものはガラス管の内部が約１０−
’ｍｍＨｇ まで減圧された真空状態にあるため、外部
からの衝撃によってガラス管が破壊されやすく、破壊さ
れるとガラス片が周囲に飛散し、特にその設置場所が屋
根上や屋上やベランダ上であるので地上に落下する可能
性が大きく、非常に危険性が大であった。(b) Prior Art In recent years, vacuum glass tube type solar heat collectors with excellent heat collection efficiency have come into wide use. However, in the vacuum glass tube type, the inside of the glass tube is approximately 10-
Because the glass tube is in a vacuum state with pressure reduced to 'mmHg, it is easily destroyed by external impact, and if it is destroyed, glass pieces will be scattered around, especially if the installation location is on the roof, roof top, or balcony. Therefore, there was a high possibility that it would fall to the ground, which was extremely dangerous.
そこで、従来、熱収縮フィルム等の被膜材でガラス管の
外周面を被覆し、ガラス管が破壊されてもガラス片の飛
散を抑止できるようにしたものが提案されている。とこ
ろが、ガラス管の外周面に被膜材を均一に貼附けること
は大変に難しく、作業性が悪いとともに、集熱器の外観
を損う虞れがあった。Therefore, it has been proposed to cover the outer circumferential surface of a glass tube with a coating material such as a heat-shrinkable film to prevent glass fragments from scattering even if the glass tube is broken. However, it is very difficult to uniformly apply the coating material to the outer peripheral surface of the glass tube, resulting in poor workability and the risk of damaging the appearance of the heat collector.
一方、被膜材を貼附する代わりに、脂肪酸系の変性ポリ
エステル等の合成樹脂材からなるコーティング層をガラ
ス管の外周面に塗装するものも提案されているが、この
場合、長期の使用の間に樹脂コーティング層が黄変して
透光性が低下したり、樹脂コーティング層とガラス管の
外周面との密着性に乏しく、界面剥離が生じたり、硬化
が進んで柔軟性がなくなり、ガラス片の飛散防止に適さ
なくなるなどの欠点があった。On the other hand, instead of pasting a coating material, it has been proposed to paint a coating layer made of synthetic resin material such as fatty acid-based modified polyester on the outer circumferential surface of the glass tube, but in this case, it is difficult to apply a coating layer made of synthetic resin material such as fatty acid-based modified polyester. The resin coating layer may turn yellow and its translucency may decrease, the adhesion between the resin coating layer and the outer circumferential surface of the glass tube may be poor, resulting in interfacial delamination, or the resin coating layer may become hardened and lose its flexibility, resulting in glass fragments. It has disadvantages such as being unsuitable for preventing scattering of water.
（ハ）発明の目的
この発明は上記の点に鑑み、長期に亘って透光性、密着
性および硬度の変化の少ない樹脂コーティング層でガラ
ス管の外表面を被覆することＫより、ガラス管破損時の
ガラス片の飛散防止を良好に行なうことを目的とする。(c) Purpose of the Invention In view of the above points, this invention covers the outer surface of the glass tube with a resin coating layer that has little change in translucency, adhesion, and hardness over a long period of time. The purpose is to effectively prevent glass fragments from scattering during the process.
に）発明の構成
上記の目的を達するため、この発明の太陽熱集熱器は透
光性のガラス管内に集熱部材を収納したものにおいて、
ガラス管の外周面に、アクリル変性ポリエステルをウル
シタン結合で硬化させた無黄変性の樹脂コーティング層
を設けた構成である。B) Structure of the Invention In order to achieve the above object, the solar heat collector of the present invention has a heat collecting member housed within a translucent glass tube.
It has a structure in which a non-yellowing resin coating layer made of acrylic modified polyester cured with urushitane bonds is provided on the outer peripheral surface of the glass tube.
この樹脂コーティング層は黄変性のないアクリル変性ポ
リエステルにイソシアネート等の無黄変性の硬化剤を反
応させ、ウレタン結合により作られた２液タイプの合成
樹脂材からなり、無黄変性のため、初期時の高い透光性
が長期に亘って維持される。また、耐熱性や耐候性に優
れ、ガラス管との密着性や硬度の変化が少ないことも各
種実験で確認されている。This resin coating layer is made of a two-component synthetic resin material made by reacting non-yellowing acrylic modified polyester with a non-yellowing curing agent such as isocyanate and bonding with urethane. High translucency is maintained over a long period of time. It has also been confirmed in various experiments that it has excellent heat resistance and weather resistance, and that there is little change in adhesion to glass tubes or hardness.
（ホ）実施例 以下、この発明を図面に示す実施例について説明する。(e) Examples Hereinafter, embodiments of the present invention shown in the drawings will be described.
第１図は樹脂コーティング層を設ける前の全体構成を示
し、第２図は塗装後の端部の断面構成を示すもので、太
陽熱集熱器（１）は円筒状の透明ガラス管（２）と、そ
の内部の集熱管（３）と集熱板（４）とが伝熱的に結合
された集熱部材（５）と、ガラス管（２）の端面開口を
覆うエンドブラケット（６）、（６）とからなり、ガラ
ス管（２）の全外周面に樹脂コーティング層（力が設け
られている。Figure 1 shows the overall configuration before the resin coating layer is applied, and Figure 2 shows the cross-sectional configuration of the end after painting.The solar heat collector (1) is a cylindrical transparent glass tube (2). , a heat collecting member (5) in which the heat collecting pipe (3) and the heat collecting plate (4) are thermally coupled together, and an end bracket (6) that covers the end opening of the glass tube (2). (6), and a resin coating layer is provided on the entire outer peripheral surface of the glass tube (2).
樹脂コーティング層（力は無黄変性のアクリル変性ポリ
エステルにイソシアネート等の無黄変性の硬化剤を反応
させ、ウレタン結合で硬化させた２液タイプの合成樹脂
剤であり、次に塗装工程の１例を示す。Resin coating layer (resin coating layer is a two-component type synthetic resin agent made by reacting non-yellowing acrylic modified polyester with non-yellowing curing agent such as isocyanate and curing with urethane bond. Next, an example of the painting process. shows.
：） ガラス管（２）の外周面を予め導電剤で処理する
。:) Treat the outer peripheral surface of the glass tube (2) with a conductive agent in advance.
１１）２液タイプの塗装機を使用し、主剤（アクリル変
性ポリエステル）と硬化剤（例えばインシアネート）と
を所定混合比で混合した後、混合液を導電剤処理を施し
たガラス管（２）の外周面に静電塗装法で塗布する。11) Using a two-component type coating machine, after mixing the main agent (acrylic modified polyester) and hardening agent (for example, incyanate) at a predetermined mixing ratio, the mixed solution is treated with a conductive agent in a glass tube (2). It is applied to the outer circumferential surface using an electrostatic coating method.
ｔｉ＋） 塗布後、１０〜３０分間位、強制乾燥を行な
う。ti+) After application, force drying for about 10 to 30 minutes.
樹脂コーティング層（力は膜厚が薄い程、ガラス管（２
）との密着性が良くなるのに対し、凝集力が弱くなり、
ガラス片の飛散防止力が弱くなる。そこで、膜厚な５〜
３０μｍとすることにより、ガラス片の飛散防止に必要
な膜厚を確保し、樹脂コーティング層（力とガラス管（
２）との密着性を良好にすることができる。Resin coating layer (the thinner the film thickness, the more the glass tube (2
), but the cohesive force becomes weaker,
The ability to prevent glass fragments from scattering becomes weaker. Therefore, the film thickness is 5~
By setting it to 30 μm, we ensured the film thickness necessary to prevent glass pieces from scattering, and the resin coating layer (force and glass tube (
2) can be improved in adhesion.
また、樹脂コーティング層（力はガラスより若干柔軟性
を有する方が飛散防止に適するので、主剤と硬化剤との
混合比を、主剤１００に対し硬化剤２０〜４０とし、硬
度が鉛筆硬度で２Ｂ−Ｈになるようにすると良い。In addition, the resin coating layer (strength is slightly more flexible than glass is suitable for preventing scattering, so the mixing ratio of the base resin and curing agent is 20 to 40 parts of the hardening agent to 100 parts of the base resin, and the hardness is 2B in pencil hardness. -H.
第３図はこのようにして製造された樹脂コーティング層
（７）の初期時の光透過率のデータを示す。FIG. 3 shows data on the initial light transmittance of the resin coating layer (7) produced in this manner.
樹脂コーティング層（７）は可視光（波長が０．４〜０
．７５μｍ）に対し、高い透過率を有し、しかも無黄変
性であることから長期に亘って良好な透光性が維持でき
る。The resin coating layer (7) is visible light (wavelength is 0.4 to 0).
．． 75 μm), and since it is non-yellowing, good light transmittance can be maintained over a long period of time.
また、塗装後、１０日間にもおよぶ強制乾燥試験（６０
℃±２〜３℃）、６５〜８０℃の温度条件下での耐熱試
験、およびサンシャイン・ウェザ−メータによる耐候性
試験を行なった結果、何れの試験でも樹脂コーティング
層（７）とガラス管（２）との密着性は良好に保たれ、
樹脂コーティング層（７）の硬度の変化もみられなかっ
た。In addition, after painting, we conducted a forced drying test (60
As a result of conducting heat resistance tests under temperature conditions of 65 to 80 degrees Celsius) and 65 to 80 degrees Celsius, and weather resistance tests using a sunshine weather meter, all tests showed that the resin coating layer (7) and the glass tube ( 2) maintains good adhesion with
No change in the hardness of the resin coating layer (7) was observed.
（へ）発明の効果
この発明は以上述べたように、透光性のガラス管内に集
熱部材を収納したものにおいて、ガラス管の外周面に、
アクリル変性ポリエステルをウレタン結合で硬化させた
無黄変性の樹脂コーティング層を設けたものであるから
、長期の使用の間に樹脂コーティング層が黄変して透光
性が低下する心配がなく、しかもガラス管の破損時にガ
ラス片が飛散するのを防止するのに必要な樹脂コーティ
ング層とガラス管との密着性および樹脂コーティング層
の硬度を維持でき、集熱量に殆ど影響を与えることなく
使用上の安全性を高めることができる。(F) Effects of the Invention As described above, the present invention provides a device in which a heat collecting member is housed in a translucent glass tube.
Since it has a non-yellowing resin coating layer made by curing acrylic modified polyester with urethane bonds, there is no need to worry about the resin coating layer yellowing and reducing translucency during long-term use. It maintains the adhesion between the resin coating layer and the glass tube and the hardness of the resin coating layer, which are necessary to prevent glass fragments from scattering when the glass tube is broken, making it easy to use without affecting the amount of heat collected. Safety can be increased.
第１図はこの発明を適用する太陽熱集熱器の１例を示す
平面図、第２図はこの発明の一実施例の部分断面図、第
３図はこの発明の一実施例の特性説明図である。
（１）・・・太陽熱集熱器、 （２）・・・ガラス管、
（５）・・・集熱部材、 （力・・・樹脂コーティン
グ層。
第２図Fig. 1 is a plan view showing an example of a solar heat collector to which this invention is applied, Fig. 2 is a partial sectional view of an embodiment of this invention, and Fig. 3 is a characteristic diagram of an embodiment of this invention. It is. (1)...Solar heat collector, (2)...Glass tube,
(5)...Heat collecting member, (force...resin coating layer. Figure 2)
Claims (3)
おいて、ガラス管の外周面にアクリル変性ポリエステル
をウレタン結合で硬化させた無黄変性の樹脂コーティン
グ層を設けたことを特徴とする太陽熱集熱器。(1) A heat collecting member housed in a translucent glass tube, characterized in that a non-yellowing resin coating layer made of acrylic modified polyester cured with urethane bonding is provided on the outer peripheral surface of the glass tube. Solar heat collector.
特許請求の範囲第１項記載の太陽熱集熱器。(2) The solar heat collector according to claim 1, wherein the resin coating layer has a thickness of 5 to 30 μm.
とした特許請求の範囲第１項または第２項記載の太陽熱
集熱器。(3) The hardness of the resin coating layer is 2B-H in pencil hardness.
A solar heat collector according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58181299A JPS6071858A (en) | 1983-09-28 | 1983-09-28 | Solar heat collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58181299A JPS6071858A (en) | 1983-09-28 | 1983-09-28 | Solar heat collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6071858A true JPS6071858A (en) | 1985-04-23 |
Family
ID=16098249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58181299A Pending JPS6071858A (en) | 1983-09-28 | 1983-09-28 | Solar heat collecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6071858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100911048B1 (en) | 2007-07-24 | 2009-08-06 | 쏠라포스 주식회사 | A Solar collector cell |
-
1983
- 1983-09-28 JP JP58181299A patent/JPS6071858A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100911048B1 (en) | 2007-07-24 | 2009-08-06 | 쏠라포스 주식회사 | A Solar collector cell |
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