JPS6257904B2 - - Google Patents
Info
- Publication number
- JPS6257904B2 JPS6257904B2 JP54135192A JP13519279A JPS6257904B2 JP S6257904 B2 JPS6257904 B2 JP S6257904B2 JP 54135192 A JP54135192 A JP 54135192A JP 13519279 A JP13519279 A JP 13519279A JP S6257904 B2 JPS6257904 B2 JP S6257904B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- metal
- reflective
- film
- thickness
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 28
- 239000011162 core material Substances 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000003628 erosive effect Effects 0.000 claims description 4
- 238000007740 vapor deposition Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 2
- 239000011148 porous material Substances 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 239000000758 substrate Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 239000002985 plastic film Substances 0.000 description 6
- 229920006255 plastic film Polymers 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 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
- Y02E10/44—Heat exchange systems
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明は、太陽エネルギーの利用に関し、特に
太陽光線を集熱して利用するために反射鏡面を備
えた反射型集熱板と、その製造方法に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to the use of solar energy, and in particular to a reflective heat collector plate equipped with a reflective mirror surface for collecting and utilizing solar rays, and a method for manufacturing the same. Regarding.
＜従来の技術＞
従来、太陽光線の集光集熱を目的とした反射型
集熱装置等に使用される反射板１ａ及び１ｂは、
断面構造を第１図に示す如く、ハニカムコア４の
上下面を、アルミニウム、鉄等の金属板からなる
表面板２と裏面板３とによりサンドイツチ構造と
した基板T1の集光側、すなわち、前記表面板２
の上面に、ガラス裏面鏡からなる鏡面板S1を取り
付けた構造のもの（反射板１ａ）、あるいは、第
２図に示す如く、ポリエステルフイルム等のプラ
スチツクフイルムａの表面にアルミニウム等を蒸
着して、反射用皮膜ｂを形成させ、さらに該反射
用皮膜ｂの外側面にポリエステルフイルム等のプ
ラスチツク皮膜ｃを設けてなる鏡面板S2を、前記
基板T1と同一構造の基板T2の集光側、すなわち
前記表面板２の上面に取り付けた構造のもの（反
射板１ｂ：実開昭53−4947号公報参照）等があ
る。<Conventional Technology> Conventionally, reflecting plates 1a and 1b used in reflective heat collecting devices and the like for the purpose of collecting sunlight and concentrating heat are as follows:
As the cross-sectional structure is shown in FIG. 1, the upper and lower surfaces of the honeycomb core 4 are formed into a sandwich structure by a front plate 2 and a back plate 3 made of metal plates such as aluminum or iron. The surface plate 2
It has a structure in which a mirror plate S1 consisting of a glass back mirror is attached to the top surface (reflector plate 1a), or it has a structure in which aluminum or the like is vapor-deposited on the surface of a plastic film a such as a polyester film, as shown in Fig. 2. , a mirror plate S 2 on which a reflective film b is formed and a plastic film c such as a polyester film on the outer surface of the reflective film b is used to condense light from a substrate T 2 having the same structure as the substrate T 1 . There is a structure that is attached to the side, that is, the upper surface of the surface plate 2 (reflector plate 1b: see Utility Model Application No. 53-4947).
上記の従来例は、いずれも曲率を有する基板
T1またはＴ2形成した後に、凹面状に出来上つた
表面板２の上に鏡面板S1またはS2を貼合わせる製
造方法によつている。 In all of the above conventional examples, the substrate has a curvature.
After forming T 1 or T 2 , a mirror plate S 1 or S 2 is bonded onto the concave surface plate 2 .
＜発明の解決しようとする問題点＞
しかしながら、上述した各反射板１ａ，１ｂに
は、次の如き問題点があり、太陽光線の集光集熱
には適していなかつた。<Problems to be Solved by the Invention> However, each of the above-mentioned reflecting plates 1a and 1b has the following problems and is not suitable for condensing and collecting heat of sunlight.
すなわち；
(1) 前記第１図に示す反射板１ａは；
(a) 前記構造の基板T1は、反射用曲面を加工
する曲率精度に仕上げることが可能であるに
もかかわらず、前記ガラス裏面鏡S1は、その
曲率精度を基板T1と同様に仕上げることが
極めて困難で、全体として製作完了時の精度
が悪くなる。 That is, (1) The reflecting plate 1a shown in FIG. It is extremely difficult to finish the mirror S1 with the same curvature accuracy as that of the substrate T1 , and the overall accuracy upon completion of manufacture is poor.
(b) また前記ガラス裏面鏡S1と基板T1の曲率
精度に差が生ずるため、鏡面の裏と基板上面
を貼合わせる時、接着剤の厚さが不均一とな
り、接着強度がバラツク或いは空隙が残る等
の障害から温度変化による膨脹・収縮作用に
よつて破損しやすい。 (b) Furthermore, since there is a difference in the curvature accuracy between the glass back mirror S 1 and the substrate T 1 , the thickness of the adhesive becomes uneven when bonding the back of the mirror and the top surface of the substrate, resulting in uneven adhesive strength or voids. They are susceptible to damage due to expansion and contraction caused by temperature changes due to problems such as residual damage.
(c) また前記ガラス裏面鏡S1は、その重量が重
くなると共に、取り扱いに相当な注意を要
し、追尾支持装置等の付帯設備の設計強度を
大きくしなければならない。また重量が増え
ると重力の影響を受け基体が歪む可能性が高
い。 (c) Furthermore, the glass back mirror S 1 is heavy and requires great care in handling, and the design strength of ancillary equipment such as a tracking support device must be increased. Furthermore, as the weight increases, there is a high possibility that the base will be distorted due to the influence of gravity.
(d) さらに、この種のガラス裏面鏡S1の反射率
は、ガラス内を光が往復するため、80％程度
と低い。 (d) Furthermore, the reflectance of this type of glass back mirror S 1 is as low as about 80% because light travels back and forth within the glass.
(2) 前記第２図に示す反射板１ｂは；
(a) 前述の反射板１ａと比較して軽量な反射板
を得ることができるが、基体T2の凹面上に
反射板１ｂを貼合わせる時、接着剤の厚みの
符不均一性や、内部に封じ込められた気泡、
ゴミ等が付着して仕上り鏡面は、凸凹のある
精度の低い反射面になる。(2) The reflector 1b shown in FIG. 2 is: (a) A lighter reflector can be obtained compared to the reflector 1a described above, but the reflector 1b is pasted onto the concave surface of the base T2 . At times, there may be unevenness in the thickness of the adhesive, air bubbles trapped inside,
The finished mirror surface becomes an uneven reflecting surface with low precision due to the adhesion of dust and the like.
(b) また、この鏡面板S2は、表面がプラスチツ
クフイルムであるため硬度が不足し、傷が付
き易く、乱反射の原因となる。 (b) Furthermore, since the surface of the mirror plate S 2 is made of a plastic film, it lacks hardness and is easily scratched, causing diffused reflection.
(c) さらに表面がプラスチツクフイルムである
ため、乾燥期は空気流によつても静電気が発
生し帯電するため、ゴミ等が付着しやすい。 (c) Furthermore, since the surface is made of plastic film, static electricity is generated and charged by air flow during dry periods, making it easy for dust to adhere to it.
(d) 前述の如く表面がプラスチツクフイルム製
の鏡面板S2の反射率は、初め90％程度とかな
り良好である屋外に放置すれば約６ケ月後で
は劣化して50％程度まで低下してしまう。 (d) As mentioned above, the reflectance of the mirror plate S2 , whose surface is made of plastic film, is initially about 90%, which is quite good.However, if it is left outdoors, it will deteriorate and drop to about 50% after about 6 months. Put it away.
＜問題点を解決するための手段＞
本発明は、上述の現状に蓋みなされたもので、
前記諸問題点を一挙に解決した極めて有効適切な
反射型集熱板とその製造方法を提供することを目
的とした。本発明の特徴とするところは、軽量で
剛性の高いハニカムコア等を用いた基板上に取り
付けた金属板の表面に、反射性を有する金属蒸着
膜を設け、該蒸着膜の外表面を硬くて透明な無機
質の保護膜で被膜することにより、初期反射率を
著しく向上せしめると共に、経時反射率の低下を
防止する一方、表面が傷付き難く、耐久性及び耐
候性に優れ、また軽量で精度が高く、太陽光線を
長期に亘つて高能率に集光集熱し得るようにした
点にある。<Means for solving the problems> The present invention is intended to cover the above-mentioned current situation.
The object of the present invention is to provide an extremely effective and suitable reflective heat collecting plate that solves the above-mentioned problems all at once, and a method for manufacturing the same. A feature of the present invention is that a reflective metal vapor deposition film is provided on the surface of a metal plate attached to a substrate using a lightweight and highly rigid honeycomb core, etc., and the outer surface of the vapor deposition film is made hard. Coating with a transparent inorganic protective film significantly improves the initial reflectance and prevents the reflectance from decreasing over time.The surface is scratch resistant, has excellent durability and weather resistance, and is lightweight and highly accurate. The reason is that it is possible to efficiently collect sunlight and heat over a long period of time.
＜実施例＞
以下、本発明に係る反射型集熱板とその製造方
法を実施例により図面を参照しつつ説明する。<Example> Hereinafter, a reflective heat collecting plate and a method for manufacturing the same according to the present invention will be described by way of an example with reference to the drawings.
まず、本発明の反射型集熱板１は、その一例を
第３図及び第４図に示す如く、基体Ｔに取り付け
た金属板７の表面に、反射性を有する金属蒸着膜
８を設け、該蒸着膜８の外表面を透明な無機物質
の保護膜９で被覆して構成されている。 First, in the reflective heat collecting plate 1 of the present invention, as an example of which is shown in FIGS. 3 and 4, a reflective metal vapor deposited film 8 is provided on the surface of a metal plate 7 attached to a base T. The outer surface of the vapor deposited film 8 is covered with a protective film 9 made of a transparent inorganic substance.
次に上述した反射型集熱板１の製造方法は、前
記金属板７の表面に反射性を有する金属を蒸着
し、反射被膜を形成し、該金属蒸着膜８の外表面
を透明な無機物質の保護膜９で被覆することによ
り光輝板Ｓを成形し、裏面板３と前記金属板７と
をそれぞれ対面する面に接着剤６を付けて芯材４
を間に挟んで接着剤硬化により製造する。 Next, in the method for manufacturing the reflective heat collecting plate 1 described above, a reflective metal is deposited on the surface of the metal plate 7 to form a reflective coating, and the outer surface of the metal deposited film 8 is covered with a transparent inorganic material. A bright plate S is formed by coating with a protective film 9 of
It is produced by curing the adhesive by sandwiching it in between.
さらに第３図及び第４図に示す本発明に係る反
射型集熱板１の実施例について詳細に説明する。 Further, an embodiment of the reflective heat collecting plate 1 according to the present invention shown in FIGS. 3 and 4 will be described in detail.
前記基体Ｔは、図示の如く芯材４の裏面に裏面
板３を取り付けることにより、構成されており、
この芯材４は、寸法安定性及び曲率を形成する際
の精度、または剛性及び軽量化等の点からハニカ
ムコアが最も好ましく、コラゲートコア、フオー
ム材等も使用できる。 The base T is constructed by attaching a back plate 3 to the back surface of a core material 4 as shown in the figure.
The core material 4 is most preferably a honeycomb core from the viewpoints of dimensional stability and precision in forming the curvature, or from the viewpoint of rigidity and weight reduction, and a collage core, a foam material, etc. can also be used.
また該芯材４の裏面に取り付けられた前記裏面
板３は、一般に対張力要素材として適性のある金
属板を用いるが、軽量化、耐久性等を考慮すると
アルマイト処理を施したアルミニウムが好まし
く、その取り付け、貼合わせに際しては、従来か
ら知られているフイルム状、ペレツト状、あるい
は液状の構造用接着剤を使用して、ホツトメルト
法、二液反応法等により強固に接着する。 Further, the back plate 3 attached to the back surface of the core material 4 is generally made of a metal plate suitable as a tension-resisting element material, but in consideration of weight reduction, durability, etc., anodized aluminum is preferable. At the time of attachment and bonding, a conventionally known film-like, pellet-like, or liquid structural adhesive is used, and the adhesive is firmly bonded by a hot-melt method, a two-component reaction method, or the like.
さらに基体Ｔの端部周縁には第４図に示す如
く、縁材５が設けられており、この縁材５は、基
体Ｔの周辺端部の強度を高め、また雨水や湿気が
芯材４内に侵入するのを防止して、基体Ｔが内面
から腐蝕されたり、侵入水の凍結による損傷を防
止する効果があり、その材料としては金属、樹脂
含侵木材、プラスチツク等を利用できる。 Furthermore, as shown in FIG. 4, a rim material 5 is provided around the edge of the base T, and this rim material 5 increases the strength of the peripheral edge of the base T, and also prevents rainwater and moisture from forming on the core material 4. This has the effect of preventing the base T from being corroded from the inside and being damaged by freezing of the intruding water, and metal, resin-impregnated wood, plastic, etc. can be used as the material.
前記光輝板Ｓの構成要素である前記金属板７
は、アルミニウム、またはステンレススチール等
の板が好ましく、また反射性を有する金属蒸着膜
８を形成する金属としては、アルミニウム、銀等
が良い。 The metal plate 7 which is a component of the bright plate S
It is preferable to use a plate made of aluminum or stainless steel, and the metal forming the reflective metal vapor deposited film 8 is preferably aluminum, silver, or the like.
また上記金属蒸着膜８を保護する保護膜９は、
屋外侵食に耐える膜厚、望ましくは0.5〜５μｍ
を有するところの前述の如き透明な無機物質から
なり、この材料は、酸化珪素と他の物質を混合し
た透明な無機物質、若しくは酸化珪素と他の物質
との化合物を含有する透明な無機物質等から選択
することができる。 Further, the protective film 9 that protects the metal vapor deposited film 8 is
Film thickness that can withstand outdoor erosion, preferably 0.5 to 5 μm
This material is a transparent inorganic material containing a mixture of silicon oxide and another substance, or a transparent inorganic substance containing a compound of silicon oxide and another substance, etc. You can choose from.
具体的には、前記酸化珪素系無機物質として
は、例えばSiO，SiO2単体の他、非晶質で透明と
なる混合物として次のような組成の混合物を用い
ることができる。 Specifically, as the silicon oxide-based inorganic substance, for example, in addition to SiO and SiO 2 alone, a mixture having the following composition as an amorphous and transparent mixture can be used.
SiO2 50〜60％
B2O2 10〜20％
Al2O3 １〜４％
Na2O及びK2O ２〜10％
これら透明な無機物質からなる保護膜９は、前
記反射性を有する金属蒸着膜８の水分や湿気等に
よるコロージヨン及び塵埃等の付着によるエロー
ジヨンの防止、あるいはこれらの付着物の除去を
容易にし、また光輝板Ｓの表面硬度の向上を図る
ことができる。 SiO 2 50-60% B 2 O 2 10-20% Al 2 O 3 1-4% Na 2 O and K 2 O 2-10% The protective film 9 made of these transparent inorganic substances has the above-mentioned reflective property. It is possible to prevent corrosion of the metal vapor deposited film 8 due to moisture, moisture, etc. and erosion due to adhesion of dust, etc., or to easily remove these deposits, and to improve the surface hardness of the bright plate S.
次に前述した本発明の製造方法の一例を第４図
を参照しつつ具体的に説明する。 Next, an example of the manufacturing method of the present invention described above will be specifically explained with reference to FIG. 4.
凸型の昇温可能な金属型の上に反射面が当たる
ようにして光輝板Ｓ（厚さ0.3〜1.0mm程度）を乗
せ、熱融着（融点120℃前後）性フイルム状接着
シート（厚さ0.5mm前後）を乗せ、その上にハニ
カムコアの芯材４を乗せる。ハニカムコアは出来
上り寸法と耐風圧設計から計算した剛性に合わせ
て厚さ（例えば10〜100mm）及びセルサイズ（４
〜30mm）を選定しておく。前記ハニカムコアの芯
材４の上に前記フイルム状接着シートを乗せ、さ
らにその上に裏面板３を乗せて、その上にシルコ
ンゴムシート等の耐熱性のあるエアーバツクで覆
い、空気圧、約30cmHg程度で加熱しながら金属
型の温度を接着シートの融点まで昇温させ、平衡
温度を確認したら冷却する。温度が30〜40℃程度
に十分に冷やしてからエアーバツクによる加圧を
除去し、周囲の寸法調整と、縁材５の埋込み接着
並びに周囲端面の防水シール処理を行う。光輝板
Ｓの素材の性質に合わせエアーバツクの加圧は調
整し、例えば0.3mmのアルミニウムを金属板７に
使用した場合は10cmHg程度にしなければ表面の
平面性が損われる。 Place the luminous plate S (approximately 0.3 to 1.0 mm thick) on top of the convex metal mold that can be heated, with the reflective surface touching it, and place the heat-sealing (melting point around 120°C) film-like adhesive sheet (thick (approximately 0.5 mm in diameter) and place honeycomb core core material 4 on top of it. The honeycomb core has a thickness (e.g. 10 to 100 mm) and cell size (4
~30mm). The film-like adhesive sheet is placed on the core material 4 of the honeycomb core, and the back plate 3 is placed on top of it, and then covered with a heat-resistant air bag such as a silicone rubber sheet, and the air pressure is approximately 30 cmHg. Raise the temperature of the metal mold to the melting point of the adhesive sheet while heating at a moderate temperature, and once the equilibrium temperature is confirmed, cool it down. After the temperature is sufficiently cooled to about 30 to 40°C, the pressure from the air bag is removed, and the surrounding dimensions are adjusted, the edge material 5 is embedded and bonded, and the surrounding end faces are subjected to waterproof sealing. The pressure of the air bag should be adjusted according to the properties of the material of the bright plate S. For example, if 0.3 mm aluminum is used for the metal plate 7, the pressure must be about 10 cmHg or the surface flatness will be impaired.
また、接着シートの替りに他の接着剤、例えば
二液反応型エポキシ系接着剤の場合等、製造方法
の基体は同じであるが、成形時間、温度条件、加
圧条件等は接着剤の性質を考慮した最適条件を試
行によつて求めて実施する。 In addition, when using other adhesives instead of adhesive sheets, such as two-component reactive epoxy adhesives, the manufacturing method is the same, but the characteristics of the adhesive such as molding time, temperature conditions, pressure conditions, etc. The optimal conditions will be determined through trials and implemented.
また芯材４のハニカムコアのセル形状は、成形
曲率が小さい場合は、ハニカムコアの性質から鞍
型に変型するため、ハニカムコアのセル形状をあ
らかじめ加工する。第３図の如く１次曲面の場合
は、長六角型になるようオーバーエキパンド（伸
長加工）処理を行う。 Further, the cell shape of the honeycomb core of the core material 4 is deformed into a saddle shape due to the nature of the honeycomb core when the molding curvature is small, so the cell shape of the honeycomb core is processed in advance. In the case of a linear curved surface as shown in FIG. 3, overexpansion processing is performed to make it into a long hexagonal shape.
＜作用＞
本発明によれば、金属板７と裏面板３とが芯材
４のハニカムコアを介して接着された構造となつ
ているため極めて軽量であり、上下の金属板が耐
張力素材を形成し、ハニカムコアが耐圧縮力素材
となつているため、極めて剛性が高く、どの角度
に支持されても重力を受けて形状が歪むことがな
い。従つて、反射型集熱板としての形状精度が高
くなると共に、曲率精度も光輝板Ｓが型に密着さ
れて同時に成形される製造方法によるため、精度
の高い型に合つたものを量産することができる。<Function> According to the present invention, the metal plate 7 and the back plate 3 are bonded together via the honeycomb core of the core material 4, so it is extremely lightweight, and the upper and lower metal plates are made of tensile strength material. Because the honeycomb core is made of a compression-resistant material, it has extremely high rigidity, and its shape will not be distorted by gravity no matter what angle it is supported. Therefore, the shape accuracy as a reflective heat collecting plate is high, and the curvature accuracy is also due to the manufacturing method in which the bright plate S is closely attached to the mold and molded at the same time, so it is possible to mass-produce products that fit highly accurate molds. Can be done.
また本発明による反射面は高反射性能を有する
金属反射面に薄膜の酸化珪素系の保護膜で構成さ
れているため、ガラス裏面鏡の如く、ガラスの厚
さの往復光路で吸収されるような損失量（厚さを
ｔとすると吸収量；Ｉ〓はＩ〓＝ae(b×2×t)の式
に近い値で吸収されることが実測されている。
ａ，ｂは素材物性定数）に相当するものが極めて
少なくなり、初期反射率は95％を示す。 In addition, since the reflective surface according to the present invention is composed of a thin silicon oxide-based protective film on a metal reflective surface with high reflective performance, it is similar to a glass-backed mirror, so that light is absorbed in the round trip optical path due to the thickness of the glass. It has been actually measured that the amount of loss (the amount of absorption, where the thickness is t), I〓, is absorbed at a value close to the formula: I〓=ae (b×2×t) .
(a and b are constants of physical properties of the material) are extremely small, and the initial reflectance is 95%.
また反射表面は、プラスチツクフイルム鏡より
も硬く、塵埃が付着し難く、かつ降雨による自然
浄化作用が効果的に働き、反射率の回復が行われ
やすいガラス質であるため、経時反射率の低下が
極めて小さくなる等の作用効果がある。 In addition, the reflective surface is glassy, which is harder than plastic film mirrors, makes it difficult for dust to adhere to it, and the natural purification effect of rainfall works effectively, making it easier to recover the reflectance, so the reflectance decreases over time. It has the effect of becoming extremely small.
＜発明の効果＞
本発明によれば、従来不可能であつた高精度の
曲率、平滑度を有する反射型集熱板を製造するこ
とができると共に、軽量かつ高剛性の太陽光線集
光集熱板が実現できる。<Effects of the Invention> According to the present invention, it is possible to manufacture a reflective heat collecting plate having high precision curvature and smoothness that was previously impossible, and also to produce a lightweight and highly rigid solar ray condensing heat collecting plate. A board can be realized.
第１図及び第２図は、それぞれ従来の反射板の
一部断面拡大図、第３図〜第６図はそれぞれ本発
明の実施例を示すもので、第３図は反射型集熱板
の一部切欠した斜面図、第４図は第３図Ｘ−Ｘ矢
視断面拡大図、第５図及び第６図は本発明の反射
型集熱板の使用方法の例を示す説明図である。
Ｔ……基体、１……反射型集熱板、７……金属
板、８……反射蒸着膜、９……保護膜、Ｓ……光
輝板、Ｅ……集熱器。
Figures 1 and 2 are partially enlarged cross-sectional views of a conventional reflector, Figures 3 to 6 each show an embodiment of the present invention, and Figure 3 is a reflective heat collecting plate. FIG. 4 is an enlarged cross-sectional view taken along the line X-X in FIG. . T...Substrate, 1...Reflective heat collecting plate, 7...Metal plate, 8...Reflective vapor deposited film, 9...Protective film, S... Bright plate, E... Heat collector.
Claims (1)
貼合わせてなる基体上に取付けた適度な弾力を持
つた厚さの金属板の表面に、反射性を有する金属
蒸着膜を設け、該金属蒸着膜の外表面を屋外侵食
に耐えるような厚みの透明な無機物質の保護膜で
被覆した反射型集熱板。 ２ 多孔質体からなる湾曲可能な芯材に裏面板を
貼合わせてなる基体上に取付けた適度な弾力を持
つた厚さの金属板の表面に、反射性を有する金属
を蒸着して金属蒸着膜を形成し、金属蒸着膜の表
面に透明な無機物質を蒸着して屋外侵食に耐える
ような厚みの保護膜を形成することを特徴とする
反射型集熱板の製造方法。[Scope of Claims] 1. A metal plate having a reflective property is attached to the surface of a metal plate having an appropriate elasticity and thickness, which is attached to a base plate made by laminating a back plate to a bendable core material made of a porous material. A reflective heat collector plate provided with a vapor-deposited film, and the outer surface of the metal-deposited film is coated with a transparent protective film of an inorganic substance having a thickness that can withstand outdoor erosion. 2 Metal vapor deposition by depositing a reflective metal on the surface of a metal plate of moderate elasticity and thickness attached to a base made of a bendable core material made of a porous material and a back plate attached. A method for manufacturing a reflective heat collecting plate, comprising forming a film and depositing a transparent inorganic substance on the surface of the metal vapor-deposited film to form a protective film with a thickness that can withstand outdoor erosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13519279A JPS5661536A (en) | 1979-10-22 | 1979-10-22 | Reflection type heat collecting plate and method of manufacturing and using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13519279A JPS5661536A (en) | 1979-10-22 | 1979-10-22 | Reflection type heat collecting plate and method of manufacturing and using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5661536A JPS5661536A (en) | 1981-05-27 |
| JPS6257904B2 true JPS6257904B2 (en) | 1987-12-03 |
Family
ID=15145983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13519279A Granted JPS5661536A (en) | 1979-10-22 | 1979-10-22 | Reflection type heat collecting plate and method of manufacturing and using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5661536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013153923A1 (en) | 2012-04-12 | 2013-10-17 | Ｊｆｅスチール株式会社 | Solar reflector |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0298303U (en) * | 1989-01-19 | 1990-08-06 | ||
| WO2009080741A2 (en) * | 2007-12-21 | 2009-07-02 | Agc Flat Glass Europe Sa | Solar energy reflector |
| WO2014148149A1 (en) * | 2013-03-22 | 2014-09-25 | イビデン株式会社 | Mirror and method for manufacturing same |
| CN106435685B (en) * | 2016-09-18 | 2018-09-07 | 佛山科学技术学院 | The method that aluminium surface electro-deposition prepares low absorptivity and high hemispherical emissivity oxidation film |
-
1979
- 1979-10-22 JP JP13519279A patent/JPS5661536A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013153923A1 (en) | 2012-04-12 | 2013-10-17 | Ｊｆｅスチール株式会社 | Solar reflector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5661536A (en) | 1981-05-27 |
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