JP2000074501A - Solar heat collecting element and its manufacture - Google Patents
Solar heat collecting element and its manufactureInfo
- Publication number
- JP2000074501A JP2000074501A JP10244967A JP24496798A JP2000074501A JP 2000074501 A JP2000074501 A JP 2000074501A JP 10244967 A JP10244967 A JP 10244967A JP 24496798 A JP24496798 A JP 24496798A JP 2000074501 A JP2000074501 A JP 2000074501A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat collecting
- fin
- heat medium
- concave portion
- 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
-
- 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
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
-
- 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)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば真空状態下
で太陽熱を集熱する太陽熱集熱エレメント及びその製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar heat collecting element for collecting solar heat under a vacuum condition, for example, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】近年、太陽熱を給湯だけでなく冷暖房に
も有効に利用するための太陽熱集熱装置として、真空ガ
ラス管型の太陽熱集熱装置が提案されている。2. Description of the Related Art In recent years, a vacuum glass tube type solar heat collector has been proposed as a solar heat collector for effectively utilizing solar heat not only for hot water supply but also for cooling and heating.
【０００３】この真空ガラス管型の太陽熱集熱装置は、
太陽輻射熱を集熱する集熱フィンと、熱媒体が流れる熱
媒管とから構成された太陽熱集熱エレメントが真空ガラ
ス管内に収容され、真空断熱作用により、熱対流や熱伝
導による放熱ロスを減少させて、集熱効率を大幅に向上
させたものである。[0003] This vacuum glass tube type solar heat collector is
A solar heat collecting element composed of a heat collecting fin that collects solar radiation heat and a heat medium tube through which a heat medium flows is housed in a vacuum glass tube, and reduces heat loss due to heat convection and heat conduction by vacuum heat insulation. As a result, the heat collection efficiency has been greatly improved.
【０００４】上述のような太陽熱集熱エレメントにおい
ては、集熱フィンは熱媒管の外周面に拡管、圧入又は溶
接などにより結合されている。In the above-mentioned solar heat collecting element, the heat collecting fins are connected to the outer peripheral surface of the heat medium pipe by expanding, press-fitting, welding, or the like.
【０００５】[0005]
【発明が解決しようとする課題】ところが、集熱フィン
はアルミニウム又はアルミニウム合金にて構成され、熱
媒管は銅又は銅合金にて構成されていることから、高温
状態下において両者の線膨張係数が著しく異なる。この
ため、集熱フィンが熱媒管と拡管又は圧入により結合さ
れている場合には、経年変化によって集熱フィンと熱媒
管との結合強度が低下し、集熱フィンが熱媒管に対し回
転してしまうなどの虞がある。However, since the heat collecting fins are made of aluminum or an aluminum alloy, and the heat transfer tubes are made of copper or a copper alloy, the linear expansion coefficients of the two under high temperature conditions. Are significantly different. For this reason, when the heat collecting fins are connected to the heat medium tubes by expansion or press fitting, the strength of the connection between the heat collecting fins and the heat medium tubes decreases due to aging, and the heat collecting fins are connected to the heat medium tubes. There is a risk of rotation.
【０００６】また、これに対処するために、集熱フィン
を熱媒管に溶接したものでは、薄肉構造の集熱フィンが
溶断されてしまう虞がある。In order to cope with this, if the heat collecting fin is welded to the heat medium pipe, the heat collecting fin having a thin structure may be blown.
【０００７】これらを解消するため、集熱フィンをアル
ミニウム製の押出し形材で形成し、この集熱フィンの凹
部に熱媒管を嵌合して集熱フィンの突部をかしめ結合す
ることにより製造した太陽熱集熱エレメントが提案され
ている。In order to solve these problems, the heat collecting fin is formed of an extruded aluminum material, and a heat medium pipe is fitted into a concave portion of the heat collecting fin, and a projection of the heat collecting fin is caulked and connected. Produced solar heat collecting elements have been proposed.
【０００８】しかしながら、アルミニウム製の押出し形
材で集熱フィンを成形した場合には、この集熱フィンの
薄肉化が図れないという問題がある。However, when the heat collecting fins are formed of an extruded aluminum material, there is a problem that the thickness of the heat collecting fins cannot be reduced.
【０００９】本発明の課題は、上述の事情を考慮してな
されたものであり、熱媒管と集熱フィンとの結合強度を
向上させることができ、且つ集熱フィンの薄肉化が図れ
る太陽熱集熱エレメントおよびその製造方法を提供する
ことにある。SUMMARY OF THE INVENTION The object of the present invention has been made in view of the above-mentioned circumstances, and it is possible to improve the bonding strength between a heat transfer tube and a heat collecting fin and to reduce the thickness of the heat collecting fin by solar heat. An object of the present invention is to provide a heat collecting element and a manufacturing method thereof.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、請求項１記載の発明は、集熱フィンにて集熱された
太陽輻射熱を利用して、熱媒管内の熱媒体を加熱する太
陽熱集熱エレメントにおいて、一枚のアルミニウム製の
板材を折り曲げ成形することによって上記集熱フィンの
板面に上記熱媒管を収容する凹部とこの凹部の両端縁部
に形成され上記板面よりも突出する突部とを一体的に形
成し、この突部を上記凹部に収容された上記熱媒管の上
部に被せるように押圧して上記熱媒管と上記集熱フィン
とを結合したことを特徴とするものである。In order to achieve the above object, according to the first aspect of the present invention, a heat medium in a heat medium pipe is heated by utilizing solar radiation heat collected by heat collection fins. In the solar heat collecting element, a concave portion for accommodating the heat transfer pipe is formed on a plate surface of the heat collecting fin by bending one aluminum plate material, and formed at both end edges of the concave portion. A projecting protrusion is formed integrally, and the protrusion is pressed so as to cover the upper part of the heat medium tube accommodated in the concave portion, so that the heat medium tube and the heat collecting fin are joined. It is a feature.
【００１１】請求項２記載の発明は、集熱フィンを熱媒
管の外周面に結合して製造する太陽熱集熱エレメントの
製造方法において、一枚のアルミニウム製の板材を折り
曲げ成形することによって上記集熱フィンの板面に上記
熱媒管を収容する凹部とこの凹部の両端縁部に形成され
上記板面よりも突出する突部とを一体的に形成し、上記
集熱フィンの凹部内に上記熱媒管を収容した状態で、上
記集熱フィンの上記突部を上記熱媒管の上部側へ曲げ変
形させて上記熱媒管と上記集熱フィンとをかしめ結合し
たことを特徴とするものである。According to a second aspect of the present invention, there is provided a method for manufacturing a solar heat collecting element manufactured by connecting a heat collecting fin to an outer peripheral surface of a heat medium pipe, wherein one aluminum plate is bent and formed. A concave portion for accommodating the heat medium tube on the plate surface of the heat collecting fin, and a protrusion formed at both end edges of the concave portion and projecting from the plate surface are integrally formed, and are formed in the concave portion of the heat collecting fin. In a state where the heat medium tube is housed, the protrusion of the heat collecting fin is bent and deformed toward the upper side of the heat medium tube, and the heat medium tube and the heat collecting fin are caulked and joined. Things.
【００１２】これらの発明では、一枚板のアルミニウム
製の集熱フィンの板面に、例えばプレス加工等により、
例えば集熱フィンの長手方向に延びて上記熱媒管を収容
する凹部を一体的に形成し、この凹部の両端縁部には上
記板面よりも突出する突部を一体的に形成し、上記集熱
フィンの凹部内に上記熱媒管を収容した状態で、上記集
熱フィンの上記突部を例えば上記熱媒管の上部側へ曲げ
変形させて上記熱媒管と上記集熱フィンとをかしめ結合
すること等により製造するので、両者の密着性が高ま
り、集熱フィンの熱媒管に対する回転を防止できると共
に、集熱フィンの熱媒管に対する引抜き強度も向上させ
ることができる。In these inventions, the plate surface of a single aluminum heat collecting fin is formed by, for example, pressing.
For example, a concave portion extending in the longitudinal direction of the heat collecting fin and accommodating the heat medium pipe is integrally formed, and both end edges of the concave portion are integrally formed with protrusions protruding from the plate surface. In a state in which the heat transfer tube is accommodated in the concave portion of the heat collection fin, the protrusion of the heat collection fin is bent and deformed, for example, toward the upper side of the heat transfer tube, thereby forming the heat transfer tube and the heat collection fin. Since it is manufactured by caulking and the like, the adhesion between the two is enhanced, the rotation of the heat collecting fin with respect to the heat medium tube can be prevented, and the pull-out strength of the heat collecting fin with respect to the heat medium tube can also be improved.
【００１３】また、一枚板のアルミニウム製の集熱フィ
ンを加工しているので、集熱フィンの薄肉化を簡単に図
ることができる。Further, since a single aluminum heat collecting fin is processed, the thickness of the heat collecting fin can be easily reduced.
【００１４】請求項３記載の発明は、集熱フィンを熱媒
管の外周面に結合して製造する太陽熱集熱エレメントの
製造方法において、一枚のアルミニウム製の板材を折り
曲げ成形することによって上記集熱フィンの板面に上記
熱媒管を収容する凹部とこの凹部の両端縁部に形成され
板面よりも突出する突部とを一体的に形成し、上記集熱
フィンの凹部内に熱媒管を収容した状態で、上記集熱フ
ィンの突部を上記熱媒管の上部側へ押圧変形させて熱媒
管と集熱フィンとをかしめ結合し、凹部の両端縁部から
延びる各突部の間から熱媒管の外周面の一部を押圧して
当該熱媒管を押し潰すことを特徴とするものである。According to a third aspect of the present invention, in the method for manufacturing a solar heat collecting element manufactured by connecting a heat collecting fin to an outer peripheral surface of a heat medium pipe, the above-mentioned method is characterized in that one aluminum plate is bent and formed. A concave portion for accommodating the heat medium tube and a projection formed at both end edges of the concave portion and projecting from the plate surface are integrally formed on the plate surface of the heat collecting fin, and heat is formed in the concave portion of the heat collecting fin. With the medium tube accommodated, the protrusion of the heat collecting fin is pressed and deformed toward the upper side of the heat medium tube to caulk and join the heat medium tube and the heat collecting fin, and each protrusion extending from both end edges of the concave portion. A part of the outer peripheral surface of the heat medium tube is pressed from between the portions to crush the heat medium tube.
【００１５】この発明では、集熱フィンと熱媒管とのか
しめ結合後に、上記集熱フィンのかしめ部がスプリング
バックして、上記かしめ部内面と上記熱媒管外周面とに
隙間が生じても、その後に熱媒管を押し潰すので、この
押し潰された部分以外の熱媒管の部分が集熱フィンの突
部側に押し退けられて上記隙間が塞がれる。この結果、
集熱フィンと熱媒管との密着性を高めることができる。According to the present invention, the caulked portion of the heat collecting fin springs back after the heat collecting fin and the heat medium tube are caulked and a gap is formed between the inner surface of the caulked portion and the outer peripheral surface of the heat medium tube. Also, since the heat medium pipe is subsequently crushed, portions of the heat medium pipe other than the crushed part are pushed away by the protruding portions of the heat collecting fins, and the gap is closed. As a result,
Adhesion between the heat collecting fin and the heat medium tube can be improved.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１７】[Ａ]第１の実施の形態 図１は、本発明に係る太陽熱集熱エレメントの第１の実
施の形態が適用された太陽熱集熱装置における全体構造
の一部を示す平面図である。図２は、図１のII−II線に
沿う断面図である。[A] First Embodiment FIG. 1 is a plan view showing a part of the entire structure of a solar heat collecting apparatus to which a first embodiment of a solar heat collecting element according to the present invention is applied. is there. FIG. 2 is a sectional view taken along the line II-II in FIG.
【００１８】図１に示す太陽熱集熱装置１０は、複数本
の集熱ユニット１１が併設され、各集熱ユニット１１の
熱媒管１２の両端が入側ヘッダパイプ１３と出側ヘッダ
パイプ１４とに接続されたものである。それぞれの集熱
ユニット１１は、図２にも示すように、熱媒管１２と、
この熱媒管１２の軸方向略全長にわたって結合された集
熱フィン１５とが、ガラス管１６内に収容されて構成さ
れる。上述の一体結合された熱媒管１２と集熱フィン１
５とにより、太陽熱集熱エレメント２８が構成される。In the solar heat collecting apparatus 10 shown in FIG. 1, a plurality of heat collecting units 11 are provided in parallel, and both ends of a heat medium pipe 12 of each heat collecting unit 11 are connected to an inlet header pipe 13 and an outlet header pipe 14. Is connected to As shown in FIG. 2, each heat collecting unit 11 includes a heat medium pipe 12,
The heat collecting fins 15 connected over substantially the entire length of the heat medium tube 12 in the axial direction are housed in a glass tube 16. The heat transfer tube 12 and the heat collecting fin 1 integrally connected to each other as described above.
5 constitutes a solar heat collecting element 28.
【００１９】上記熱媒管１２は、銅又は銅合金にて構成
され、水又は不凍液などの熱媒体が内部を流れる。The heat medium tube 12 is made of copper or a copper alloy, and a heat medium such as water or antifreeze flows through the inside.
【００２０】上記集熱フィン１５は、アルミニウム又は
アルミニウム合金にて構成され、太陽輻射熱を集熱して
熱媒管１２内の熱媒体を加熱する。この集熱フィン１５
の表面に選択吸収膜が施されて、太陽輻射熱が効率よく
吸収される。The heat collecting fins 15 are made of aluminum or an aluminum alloy, and collect the solar radiation heat to heat the heat medium in the heat medium pipe 12. This heat collecting fin 15
A selective absorption film is applied to the surface of the solar cell to efficiently absorb solar radiation heat.
【００２１】上記ガラス管１６の内部は、約１０−４Ｔ
ｏｒｒの高真空状態に保持されて断熱構造とされてい
る。この真空断熱作用により、熱対流や熱伝導による放
熱ロスが減少されて、高温域での集熱効率が向上する。The inside of the glass tube 16 is about 10-4 T
It is kept in a high vacuum state of orr and has a heat insulating structure. Due to this vacuum heat insulating action, heat loss due to heat convection and heat conduction is reduced, and heat collection efficiency in a high temperature range is improved.
【００２２】従って、入側ヘッダパイプ１３から各集熱
ユニット１１の熱媒管１２内に流れた熱媒体は、ガラス
管１６内で集熱フィン１５により集熱された太陽輻射熱
と熱交換され、加熱されて出側ヘッダパイプ１４内へ流
出する。Therefore, the heat medium flowing from the inlet header pipe 13 into the heat medium tubes 12 of the heat collecting units 11 is exchanged with the solar radiation heat collected by the heat collecting fins 15 in the glass tube 16, It is heated and flows out into the outlet header pipe 14.
【００２３】各集熱フィン１５は以下のように製造され
る。Each heat collecting fin 15 is manufactured as follows.
【００２４】まず、図３に示すように、集熱フィン製造
用の金型が準備される。この金型は下金型３１と上金型
３２とを備えている。下金型３１の中央には長手方向に
延びる断面半円弧状の凹部３３が形成され、この凹部３
３の両側には基準面３４よりも高く三角状に突出する突
部３５が形成されている。また、上金型３２の中央には
長手方向に延びる上記凹部３３に嵌り合う形状の凸部３
６が形成され、この凸部３６の両側には、基準面３７よ
りも深く窪んで上記突部３５に嵌り合う形状の窪み部３
８が形成されている。First, as shown in FIG. 3, a mold for manufacturing a heat collecting fin is prepared. This mold has a lower mold 31 and an upper mold 32. In the center of the lower mold 31, a concave portion 33 having a semicircular cross section extending in the longitudinal direction is formed.
On both sides of 3, projections 35 projecting in a triangular shape higher than the reference surface 34 are formed. In the center of the upper mold 32, a convex portion 3 shaped to fit into the concave portion 33 extending in the longitudinal direction.
6 are formed on both sides of the convex portion 36, the concave portions 3 having a shape recessed deeper than the reference surface 37 and fitted to the protrusion 35.
8 are formed.
【００２５】下金型３１と上金型３２との間に一枚のア
ルミニウム製の板材３９を挟み、この板材３９をプレス
することによって、一枚のアルミニウム製の集熱フィン
１５が形成される。One aluminum plate 39 is sandwiched between the lower die 31 and the upper die 32, and the plate 39 is pressed to form one aluminum heat collecting fin 15. .
【００２６】このプレス後には、図４に示すように、集
熱フィン１５の板面１５ａに集熱フィン１５の長手方向
に延びて熱媒管１２を収容する凹部２１と、この凹部２
１の両端縁部に形成され上記板面１５ａよりも高く三角
状に折り曲げられて突出する突部２２とが一体的に形成
される。After the pressing, as shown in FIG. 4, a concave portion 21 extending in the longitudinal direction of the heat collecting fin 15 and accommodating the heat medium tube 12 is formed on the plate surface 15a of the heat collecting fin 15,
The projections 22 are formed integrally at both end edges of each of the projections 22 and are protruded by being bent in a triangular shape higher than the plate surface 15a.
【００２７】集熱フィン１５の長手方向に延びる凹部２
１には熱媒管１２が収容される。この熱媒管１２と集熱
フィン１５とは、図５及び図６に示すように、金型を用
いてプレスされてかしめ結合される。この金型は下金型
４１と上金型４２とを備えている。下金型４１の中央に
は長手方向に延びる断面半円弧状の凹部４３が形成さ
れ、この凹部４３には、図４に示すように組み合わされ
た、熱媒管１２と集熱フィン１５とが収納される。The concave portion 2 extending in the longitudinal direction of the heat collecting fin 15
A heating medium tube 12 is accommodated in 1. As shown in FIGS. 5 and 6, the heat medium tube 12 and the heat collecting fins 15 are pressed together using a mold and caulked. This mold has a lower mold 41 and an upper mold 42. In the center of the lower mold 41, a concave portion 43 having a semicircular cross section extending in the longitudinal direction is formed, and the heat medium tube 12 and the heat collecting fin 15 combined as shown in FIG. Is stored.
【００２８】次いで、集熱フィン１５と熱媒管１２の上
に上金型４２が載せられる。この上金型４２には、集熱
フィン１５の折り曲げられた突部２２を熱媒管１２の上
部側へ曲げ変形させるための、基準面４４よりも窪んだ
一対の押圧面４５と、各押圧面４５間に形成され、後述
するようにプレス時に熱媒管１２を押圧する断面略台形
状の押圧突部４６とが形成されている。Next, the upper mold 42 is placed on the heat collecting fins 15 and the heating medium tube 12. The upper mold 42 has a pair of pressing surfaces 45 depressed from a reference surface 44 for bending and deforming the bent protruding portion 22 of the heat collecting fin 15 toward the upper side of the heat medium tube 12. A pressing projection 46 having a substantially trapezoidal section is formed between the surfaces 45 and presses the heat medium tube 12 at the time of pressing, as described later.
【００２９】集熱フィン１５の熱媒管１２への組み付け
は、次のようになされる。まず、図４に示すように、集
熱フィン１５における凹部２１の内面に接するように熱
媒管１２を配置する。次に、これを図５に示すように、
下金型４１と上金型４２との間に設置し、上金型４２を
用いてプレスする。この時、集熱フィン１５の突部２２
が、一対の押圧面４５によって押圧され、この突部２２
が熱媒管１２の上面に覆い被さるように変形する。そし
て、この変形時には、一対の突部２２の両先端部間に隙
間２３が形成される。The assembling of the heat collecting fins 15 to the heating medium tube 12 is performed as follows. First, as shown in FIG. 4, the heat medium pipe 12 is arranged so as to be in contact with the inner surface of the concave portion 21 of the heat collecting fin 15. Next, as shown in FIG.
It is installed between the lower mold 41 and the upper mold 42 and pressed using the upper mold 42. At this time, the protrusion 22 of the heat collecting fin 15
Is pressed by a pair of pressing surfaces 45, and the protrusions 22
Is deformed so as to cover the upper surface of the heat medium tube 12. Then, at the time of this deformation, a gap 23 is formed between both ends of the pair of protrusions 22.
【００３０】更にプレスされると、図６に示すように、
上金型４２の押圧突部４６が、上記隙間２３に進入して
熱媒管１２の一部を押圧する。この場合には、押圧され
る分だけ熱媒管１２が楕円形に変形する。このようにし
て、集熱フィン１５が熱媒管１２に組み付けられる。When further pressed, as shown in FIG.
The pressing projection 46 of the upper mold 42 enters the gap 23 and presses a part of the heat medium pipe 12. In this case, the heat medium pipe 12 is deformed into an elliptical shape by the amount of pressing. In this way, the heat collecting fins 15 are assembled to the heat medium tube 12.
【００３１】この実施形態では、図５に示す段階で、集
熱フィン１５の突部２２が上記かしめ変形後にスプリン
グバックによって熱媒管１２の外周面から離反したとし
ても、次の図６に示す段階で、押圧突部４６によって熱
媒管１２の一部が隙間２３を通じて押圧されるので、こ
の押圧された部分以外の熱媒管１２の部分が突部２２の
先端位置に向けて矢印Ａ方向に押し退けられる。In this embodiment, at the stage shown in FIG. 5, even if the protrusion 22 of the heat collecting fin 15 is separated from the outer peripheral surface of the heat medium pipe 12 by springback after the above-described caulking deformation, it is shown in the following FIG. At this stage, a part of the heat medium pipe 12 is pressed through the gap 23 by the pressing protrusion 46, so that a part of the heat medium pipe 12 other than the pressed part is moved in the direction of arrow A toward the distal end position of the protrusion 22. Is dismissed by
【００３２】よって、熱媒管１２の外周面と集熱フィン
１５の突部２２との密着性が向上し、伝熱性能を向上さ
せることができる。Therefore, the adhesion between the outer peripheral surface of the heat medium pipe 12 and the projection 22 of the heat collecting fin 15 is improved, and the heat transfer performance can be improved.
【００３３】この結果、集熱フィン１５が熱媒管１２の
軸心周りに回転することを防止できると共に、集熱フィ
ン１５を熱媒管１２の軸方向に引き抜くことも防止でき
て引き抜き強度を向上させることができる。As a result, it is possible to prevent the heat collecting fins 15 from rotating around the axis of the heat medium pipe 12, and also prevent the heat collecting fins 15 from being drawn out in the axial direction of the heat medium pipe 12, thereby increasing the pull-out strength. Can be improved.
【００３４】この実施形態では、一枚のアルミニウム製
の板材３９を用いて板面上に凹部２１と突部２２とを一
体的に有する集熱フィン１５を形成しているので、従来
のように押出し形材で成形した場合に比べて集熱フィン
１５の薄型化を図ることができる。従って、軽量化とコ
ストダウンが図られる。また、この実施形態では、集熱
フィン１５を製造する場合にはアルミニウム製の板材３
９に予め連続的に表面処理を施し、これを所定寸法で裁
断し、これにプレス加工を加えて製造できるので、製造
が容易になり、且つ集熱フィン１５の表面処理品質を向
上させることができる。In this embodiment, the heat collecting fin 15 having the concave portion 21 and the protruding portion 22 is integrally formed on the plate surface by using a single aluminum plate material 39. The thickness of the heat collecting fins 15 can be reduced as compared with the case where the heat collecting fins 15 are formed by using an extruded shape. Therefore, weight reduction and cost reduction are achieved. In this embodiment, when the heat collecting fins 15 are manufactured, the aluminum plate material 3 is used.
9 is preliminarily subjected to a surface treatment, which is cut to a predetermined size, and can be manufactured by press working. This facilitates the manufacture and improves the surface treatment quality of the heat collecting fins 15. it can.
【００３５】更に、集熱フィン１５の熱媒管１２への組
み付け段階で熱媒管１２が楕円形に変形するので、熱媒
管１２が真円形である場合に比べ、集熱フィン１５の熱
媒管１２の軸心周りの相対回転を防止できる。Further, since the heat transfer tube 12 is deformed into an elliptical shape at the stage of assembling the heat collection fin 15 to the heat transfer tube 12, the heat collection fin 15 has a higher heat transfer rate than the case where the heat transfer tube 12 is perfectly circular. Relative rotation of the medium tube 12 around the axis can be prevented.
【００３６】[Ｂ]第２の実施の形態 図７は、本発明に係る太陽熱集熱エレメントの第２の実
施の形態が適用された集熱ユニットを示す断面図であ
る。[B] Second Embodiment FIG. 7 is a sectional view showing a heat collecting unit to which a second embodiment of the solar heat collecting element according to the present invention is applied.
【００３７】この太陽熱集熱エレメント７０は、集熱ユ
ニット７１内で、一枚の集熱フィン７２に複数本、例え
ば２本の熱媒管７３が、それぞれ第１の実施の形態と同
様にしてかしめ固定されたものである。In the solar heat collecting element 70, in the heat collecting unit 71, a plurality of, for example, two heat medium tubes 73 are provided on one heat collecting fin 72 in the same manner as in the first embodiment. It is fixed by swaging.
【００３８】つまり、集熱フィン７２にはプレスによっ
て二つの凹部７４と、各凹部７４の両端部に形成され、
板面よりも高く突出する突部７５とが一体的に形成さ
れ、各凹部７４には夫々熱媒管７３が配置され、これら
が図示を省略した金型内に嵌め込まれ、前記実施形態と
ほぼ同様の手順でプレスして熱媒管７３と集熱フィン７
２とをかしめ結合することにより製造される。That is, two concave portions 74 are formed in the heat collecting fin 72 by pressing and both ends of each concave portion 74 are formed.
A projecting portion 75 projecting higher than the plate surface is integrally formed, and a heat medium pipe 73 is disposed in each of the concave portions 74, and these are fitted in a mold (not shown). Press in the same procedure to heat the heat medium tube 73 and heat collecting fin 7
It is manufactured by caulking and bonding 2 with each other.
【００３９】従って、この場合も第１の実施の形態の太
陽熱集熱エレメント２８の効果と同様な効果を奏する。
尚、図７中の符号７８はガラス管を示す。 [Ｃ]第３の実施の形態 図８は、本発明に係る太陽熱集熱装置の第３の実施の形
態が適用された集熱ユニットを示す断面図である。Therefore, also in this case, the same effect as that of the solar heat collecting element 28 of the first embodiment can be obtained.
Incidentally, reference numeral 78 in FIG. 7 indicates a glass tube. [C] Third Embodiment FIG. 8 is a sectional view showing a heat collecting unit to which a third embodiment of the solar heat collecting apparatus according to the present invention is applied.
【００４０】この太陽熱集熱エレメント５０は、集熱ユ
ニット５１のガラス管５２内に、円弧形状のフィン部５
９を備えた集熱フィン５３が収容され、この集熱フィン
５３内にＵ字形状の熱媒管５４が配置されたものであ
り、一方の熱媒管５４が集熱フィン５３にかしめ固定さ
れている。The solar heat collecting element 50 is provided in a glass tube 52 of a heat collecting unit 51 in an arc-shaped fin portion 5.
The heat collecting fin 53 provided with the heat-collecting fin 53 is accommodated therein, and a U-shaped heat medium tube 54 is disposed in the heat collecting fin 53. One of the heat medium tubes 54 is caulked and fixed to the heat collecting fin 53. ing.
【００４１】つまり、集熱フィン５３は一枚のアルミニ
ウム製の板材を、プレス成形して製造され、前述したよ
うに、当該板材には凹部５６と、この凹部５６の両端部
に形成され、板面よりも高く突出する突部５７とが一体
的に形成され、凹部５７には熱媒管５４が配置され、こ
れらが図示を省略した金型内に嵌め込まれ、前記実施形
態とほぼ同様の手順でプレスして、熱媒管５４と集熱フ
ィン５３とをかしめ結合した後、このかしめ結合済みの
アルミニウム製の板材を、略円弧形状に曲げ形成するこ
とにより製造されている。That is, the heat collecting fins 53 are manufactured by press-molding a single aluminum plate, and as described above, the plate is formed with the concave portions 56 and formed at both ends of the concave portions 56. A protrusion 57 projecting higher than the surface is integrally formed, and a heat medium pipe 54 is arranged in the recess 57. These are fitted into a mold (not shown), and the procedure is substantially the same as that of the above-described embodiment. Then, the heat medium pipe 54 and the heat collecting fins 53 are caulked and connected, and then the caulked and connected aluminum plate is bent into a substantially arc shape.
【００４２】従って、この場合も、前記第１の実施の形
態の太陽熱集熱エレメント２８の効果と同様な効果を奏
する。Accordingly, also in this case, the same effect as that of the solar heat collecting element 28 of the first embodiment can be obtained.
【００４３】以上、一実施の形態に基づいて本発明を説
明したが、本発明はこれに限定されるものではない。例
えば、上記各実施形態において、かしめ結合後には熱媒
管がほぼ楕円形状に形成されるが、この形状が例えば多
角形状に形成されていてもよいことは明らかである。Although the present invention has been described based on one embodiment, the present invention is not limited to this. For example, in each of the above embodiments, the heat transfer pipe is formed into a substantially elliptical shape after the caulking, but it is apparent that this shape may be formed into a polygonal shape, for example.
【００４４】[0044]
【発明の効果】以上のように、本発明に係る太陽熱集熱
エレメントによれば、一枚のアルミニウム製の板材を折
り曲げ成形することによって集熱フィンの板面に熱媒管
を収容する凹部とこの凹部の両端縁部に形成され板面よ
りも突出する突部とを一体的に形成し、この突部を凹部
に収容された熱媒管の上部に被せるように押圧して熱媒
管と集熱フィンとを結合したので、両者の密着性が高ま
り、集熱フィンの熱媒管に対する回転を防止できると共
に、集熱フィンの熱媒管に対する引抜き強度も向上させ
ることができる。As described above, according to the solar heat collecting element according to the present invention, a single aluminum plate is bent and formed to form a concave portion for accommodating a heat transfer tube on the plate surface of the heat collecting fin. Projections formed at both end edges of the recess and projecting from the plate surface are integrally formed, and the projection is pressed so as to cover the upper portion of the heat transfer tube accommodated in the recess, thereby forming a heat transfer tube. Since the heat collecting fin and the heat collecting fin are connected, the adhesion between the heat collecting fin and the heat collecting fin can be improved, and the heat collecting fin can be prevented from rotating with respect to the heat medium tube, and the pull-out strength of the heat collecting fin with respect to the heat medium tube can be improved.
【００４５】また、一枚板のアルミニウム製の集熱フィ
ンを加工しているので、集熱フィンの薄肉化を簡単に図
ることができる。Further, since a single aluminum heat collecting fin is processed, the thickness of the heat collecting fin can be easily reduced.
【００４６】また、本発明に係る太陽熱集熱エレメント
の製造方法によれば、一枚板のアルミニウム製の集熱フ
ィンの板面に、上記熱媒管を収容する凹部を一体的に形
成し、この凹部の両端縁部には上記板面よりも突出する
突部を一体的に形成し、上記集熱フィンの凹部内に上記
熱媒管を収容した状態で、上記集熱フィンの上記突部を
上記熱媒管の上部側へ曲げ変形させて上記熱媒管と上記
集熱フィンとをかしめ結合すること等により製造するの
で、両者の密着性が高まり、集熱フィンの熱媒管に対す
る回転を防止できると共に、集熱フィンの熱媒管に対す
る引抜き強度も向上させることができる。Further, according to the method of manufacturing a solar heat collecting element according to the present invention, a concave portion for accommodating the heat medium pipe is integrally formed on a plate surface of a single aluminum heat collecting fin, Projections protruding from the plate surface are integrally formed at both end edges of the recess, and the projections of the heat collection fins are accommodated in a state where the heat medium tubes are accommodated in the recesses of the heat collection fins. Is bent and deformed toward the upper side of the heat transfer tube, and the heat transfer tube and the heat collection fin are caulked and joined. Therefore, the adhesion between the heat transfer tube and the heat collection tube is increased, and the rotation of the heat collection fin relative to the heat transfer tube is performed. Can be prevented, and the pull-out strength of the heat collecting fin with respect to the heat medium tube can be improved.
【００４７】また、一枚板のアルミニウム製の集熱フィ
ンを加工しているので、集熱フィンの薄肉化を簡単に図
ることができる。Further, since a single aluminum heat collecting fin is processed, the thickness of the heat collecting fin can be easily reduced.
【００４８】更に、本発明に係る太陽熱集熱エレメント
の製造方法によれば、集熱フィンと熱媒管とのかしめ結
合後に、上記集熱フィンのかしめ部がスプリングバック
して、上記かしめ部内面と上記熱媒管外周面とに隙間が
生じても、その後に熱媒管を押し潰すので、この押し潰
された部分以外の熱媒管の部分が集熱フィンの突部側に
押し退けられて上記隙間が塞がれる。この結果、集熱フ
ィンと熱媒管との密着性を高めることができる。Further, according to the method of manufacturing a solar heat collecting element according to the present invention, after the heat collecting fin and the heat medium tube are caulked and joined, the caulked portion of the heat collecting fin springs back, and the inner surface of the caulked portion is formed. Even if there is a gap between the outer peripheral surface of the heat medium tube and the heat medium tube, the heat medium tube is crushed thereafter, so that the heat medium tube portion other than the crushed portion is pushed away by the protrusion of the heat collecting fin. The gap is closed. As a result, the adhesion between the heat collecting fins and the heat medium tube can be improved.
【図１】本発明に係る太陽熱集熱エレメントの第１の実
施の形態が適用された太陽熱集熱装置における全体構造
の一部を示す平面図である。FIG. 1 is a plan view showing a part of the entire structure of a solar heat collecting apparatus to which a first embodiment of a solar heat collecting element according to the present invention is applied.
【図２】図１のII−II線に沿う断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.
【図３】集熱フィンの製造過程を示す断面図である。FIG. 3 is a cross-sectional view illustrating a manufacturing process of the heat collecting fin.
【図４】製造された集熱フィンを示す断面図である。FIG. 4 is a cross-sectional view showing a manufactured heat collecting fin.
【図５】集熱フィンの熱媒管への組み付け過程を示す断
面図である。FIG. 5 is a cross-sectional view showing a process of assembling the heat collecting fin to the heat medium pipe.
【図６】集熱フィンの熱媒管への組み付け過程を示す断
面図である。FIG. 6 is a cross-sectional view showing a process of assembling the heat collecting fin to the heat medium pipe.
【図７】本発明に係る太陽熱集熱エレメントの第２の実
施の形態が適用された集熱ユニットを示す断面図であ
る。FIG. 7 is a sectional view showing a heat collecting unit to which a second embodiment of the solar heat collecting element according to the present invention is applied.
【図８】本発明に係る太陽熱集熱エレメントの第３の実
施の形態が適用された集熱ユニットを示す断面図であ
る。FIG. 8 is a sectional view showing a heat collecting unit to which a third embodiment of the solar heat collecting element according to the present invention is applied.
１０ 太陽熱集熱装置 １１ 集熱ユニット １２ 熱媒管 １３ 入側ヘッダパイプ １４ 出側ヘッダパイプ １５ 集熱フィン １５ａ 板面 １６ ガラス管 ２１ 凹部 ２２ 突部 ２３ 隙間 ２８ 太陽熱集熱エレメント ３１ 下金型 ３２ 上金型 ４１ 下金型 ４２ 上金型 ４５ 押圧面 ４６ 押圧突部 REFERENCE SIGNS LIST 10 solar heat collecting apparatus 11 heat collecting unit 12 heat medium pipe 13 inlet header pipe 14 outlet header pipe 15 heat collecting fin 15 a plate surface 16 glass tube 21 concave portion 22 protrusion 23 gap 28 solar heat collecting element 31 lower mold 32 Upper die 41 Lower die 42 Upper die 45 Pressing surface 46 Pressing projection
Claims (3)
利用して、熱媒管内の熱媒体を加熱する太陽熱集熱エレ
メントにおいて、 一枚のアルミニウム製の板材を折り曲げ成形することに
よって上記集熱フィンの板面に上記熱媒管を収容する凹
部とこの凹部の両端縁部に形成され上記板面よりも突出
する突部とを一体的に形成し、この突部を上記凹部に収
容された上記熱媒管の上部に被せるように押圧して上記
熱媒管と上記集熱フィンとを結合したことを特徴とする
太陽熱集熱エレメント。1. A solar heat collecting element that heats a heat medium in a heat medium tube by utilizing solar radiation heat collected by heat collecting fins by bending and forming a single aluminum plate material. A concave portion for accommodating the heat medium pipe on the plate surface of the heat collecting fin and protrusions formed at both end edges of the concave portion and protruding from the plate surface are integrally formed, and the protrusion is stored in the concave portion. A solar heat collecting element characterized in that the heat medium pipe and the heat collecting fins are joined by pressing so as to cover the upper part of the heat medium pipe.
製造する太陽熱集熱エレメントの製造方法において、 一枚のアルミニウム製の板材を折り曲げ成形することに
よって上記集熱フィンの板面に上記熱媒管を収容する凹
部とこの凹部の両端縁部に形成され上記板面よりも突出
する突部とを一体的に形成し、 上記集熱フィンの凹部内に上記熱媒管を収容した状態
で、上記集熱フィンの上記突部を上記熱媒管の上部側へ
曲げ変形させて上記熱媒管と上記集熱フィンとをかしめ
結合したことを特徴とする太陽熱集熱エレメントの製造
方法。2. A method for manufacturing a solar heat collecting element, wherein a heat collecting fin is joined to an outer peripheral surface of a heat medium pipe, wherein the plate surface of the heat collecting fin is formed by bending a single aluminum plate material. A concave portion for accommodating the heat medium tube and protrusions formed at both end edges of the concave portion and protruding from the plate surface are integrally formed, and the heat medium tube is accommodated in the concave portion of the heat collecting fin. In this state, the projecting portion of the heat collecting fin is bent and deformed toward the upper side of the heat medium tube, and the heat medium tube and the heat collecting fin are caulked and joined, thereby manufacturing a solar heat collecting element. Method.
製造する太陽熱集熱エレメントの製造方法において、 一枚のアルミニウム製の板材を折り曲げ成形することに
よって上記集熱フィンの板面に上記熱媒管を収容する凹
部とこの凹部の両端縁部に形成され上記板面よりも突出
する突部とを一体的に形成し、 上記集熱フィンの凹部内に上記熱媒管を収容した状態
で、上記集熱フィンの上記突部を上記熱媒管の上部側へ
押圧変形させて上記熱媒管と上記集熱フィンとをかしめ
結合し、上記凹部の両端縁部から延びる上記各突部の間
から上記熱媒管の外周面の一部を押圧して当該熱媒管を
押し潰すことを特徴とする太陽熱集熱エレメントの製造
方法。3. A method for manufacturing a solar heat collecting element, wherein a heat collecting fin is joined to an outer peripheral surface of a heat medium pipe, wherein the plate surface of the heat collecting fin is formed by bending a single aluminum plate material. A concave portion for accommodating the heat medium tube and protrusions formed at both end edges of the concave portion and protruding from the plate surface are integrally formed, and the heat medium tube is accommodated in the concave portion of the heat collecting fin. In this state, the projecting portion of the heat collecting fin is pressed and deformed toward the upper side of the heat medium tube to caulk and join the heat medium tube and the heat collecting fin, and the respective portions extending from both end edges of the concave portion are formed. A method for manufacturing a solar heat collecting element, characterized in that a part of the outer peripheral surface of the heat medium pipe is pressed from between the projections to crush the heat medium pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10244967A JP2000074501A (en) | 1998-08-31 | 1998-08-31 | Solar heat collecting element and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10244967A JP2000074501A (en) | 1998-08-31 | 1998-08-31 | Solar heat collecting element and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000074501A true JP2000074501A (en) | 2000-03-14 |
Family
ID=17126628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10244967A Pending JP2000074501A (en) | 1998-08-31 | 1998-08-31 | Solar heat collecting element and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000074501A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471272A (en) * | 2013-09-29 | 2013-12-25 | 江苏创兰太阳能空调有限公司 | Collector fin |
-
1998
- 1998-08-31 JP JP10244967A patent/JP2000074501A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471272A (en) * | 2013-09-29 | 2013-12-25 | 江苏创兰太阳能空调有限公司 | Collector fin |
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