JP2003314901A - Solar energy collector - Google Patents

Solar energy collector

Info

Publication number
JP2003314901A
JP2003314901A JP2002117242A JP2002117242A JP2003314901A JP 2003314901 A JP2003314901 A JP 2003314901A JP 2002117242 A JP2002117242 A JP 2002117242A JP 2002117242 A JP2002117242 A JP 2002117242A JP 2003314901 A JP2003314901 A JP 2003314901A
Authority
JP
Japan
Prior art keywords
heat collecting
collecting plate
heat
plate
air
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.)
Withdrawn
Application number
JP2002117242A
Other languages
Japanese (ja)
Inventor
Ryuta Kondo
龍太 近藤
Takeji Watanabe
竹司 渡辺
Satoshi Imabayashi
敏 今林
Yoshitsugu Nishiyama
吉継 西山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2002117242A priority Critical patent/JP2003314901A/en
Publication of JP2003314901A publication Critical patent/JP2003314901A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/80Solar heat collectors using working fluids comprising porous material or permeable masses directly contacting the working fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/50Solar heat collectors using working fluids the working fluids being conveyed between plates
    • F24S10/55Solar heat collectors using working fluids the working fluids being conveyed between plates with enlarged surfaces, e.g. with protrusions or corrugations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00Details of absorbing elements
    • F24S70/60Details of absorbing elements characterised by the structure or construction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

<P>PROBLEM TO BE SOLVED: To accelerate heat transfer to air from a solar energy collection plate by easily machining the solar energy collection plate, to reduce costs, and to improve solar energy collection efficiency. <P>SOLUTION: The solar energy collection plate 15 is provided, where the plate 15 has a plurality of projecting bodies 19 between an air inlet 16 and an air outlet 17, and a surface irradiated with sunlight. The formation of the projecting bodies 19 increases the heat transfer area of the solar energy collection plate 15, and the projecting bodies 19 break the boundary layer of airflow for accelerating a heat transfer. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、空気との接触面積
が大きく、熱伝導率の優れた太陽熱集熱装置に関する物
である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar heat collector having a large contact area with air and excellent thermal conductivity.

【0002】[0002]

【従来の技術】従来より屋根構造に用いられる太陽熱集
熱装置には、熱媒体となる空気との接触を大きくした各
種の集熱体が用いられてきた。このような集熱体として
は、例えば金属板等に多数のフィンを突設させたもの
や、特公昭56−4816号公報に示されるような金属
板等を角波形に加工されたものなどが知られている。
2. Description of the Related Art Conventionally, various heat collectors having large contact with air serving as a heat medium have been used for solar heat collectors used for roof structures. As such a heat collector, for example, a metal plate or the like having a large number of fins provided in a protruding manner, or a metal plate or the like as shown in Japanese Patent Publication No. 56-4816 processed into a square corrugated shape, etc. Are known.

【0003】図8は、前記公報に記載された従来の太陽
熱集熱装置を示す構成図である。図8において、1は家
屋の屋根のむねから軒にわたって架け渡された複数本の
垂木であり、垂木1の外側面には固定機構2が取り付け
てあり、この固定機構2は下部支持体3と上部支持体4
とからなる。集熱板5は金属薄板を波形に折り曲げして
形成せられ、上面には黒色塗装が施されている。6はプ
ラスチック等で製した透明板で、屋根のむねから軒に至
る長さを継目のない一枚板で製したものを使用する。上
記透明板6は、波状をした集熱板5の上部波頭の上面に
接触するように取り付けられ、その縁部を前記下部支持
体3により垂木1に固定せられる。7は表面透明板でガ
ラス板で製せられ、下部支持体3の上面に載せ、上部よ
り上部支持体4により押さえ付けて固定する。8は熱絶
縁物にて形成した断熱層で、集熱板5の下部波底に接し
て形成されており下方への放熱を遮断している。
FIG. 8 is a block diagram showing a conventional solar heat collector described in the above publication. In FIG. 8, reference numeral 1 denotes a plurality of rafters spanning from the roof of the house to the eaves. A fixing mechanism 2 is attached to the outer surface of the rafter 1, and the fixing mechanism 2 includes a lower support 3 and Upper support 4
Consists of. The heat collecting plate 5 is formed by bending a thin metal plate into a corrugated shape, and its upper surface is painted black. 6 is a transparent plate made of plastic or the like, and the length from the roof ridge to the eaves is made of a seamless single plate. The transparent plate 6 is attached so as to contact the upper surface of the upper wave front of the corrugated heat collecting plate 5, and the edge portion thereof is fixed to the rafter 1 by the lower support 3. 7 is a transparent surface plate made of a glass plate, which is placed on the upper surface of the lower support 3 and fixed by being pressed by the upper support 4 from above. Reference numeral 8 denotes a heat insulating layer formed of a heat insulator, which is formed in contact with the lower corrugated bottom of the heat collecting plate 5 and blocks downward heat radiation.

【0004】前記プラスチック透明板6は第2の透明板
を構成することとなり、太陽光線は、表面透明板7およ
び第2透明板6を通して集熱板5に照射されることとな
る。集熱板5の表面側の凹部および裏面側の凹部は被加
熱空気の通路となり前記第2の透明板6により劃成せら
れる。表面透明板7と第2透明板6との中間は空気層と
なり熱の放熱を防止する。この集熱板5は空気通路の空
気流通方向に複数に分割せられていて、この分割する部
分の衝合面は左右に若干ずらせて同一波形面を形成しな
いようにして、空気流に乱流が生ずるようにして空気に
対する熱伝導率が高くなるようにしている。
The plastic transparent plate 6 constitutes a second transparent plate, and solar rays are applied to the heat collecting plate 5 through the surface transparent plate 7 and the second transparent plate 6. The concave portion on the front surface side and the concave portion on the rear surface side of the heat collecting plate 5 serve as a passage for the air to be heated and are formed by the second transparent plate 6. An air layer is formed between the surface transparent plate 7 and the second transparent plate 6 to prevent heat radiation. The heat collecting plate 5 is divided into a plurality of parts in the air flow direction of the air passage, and the abutting surfaces of the divided parts are slightly shifted to the left and right so that the same corrugated surface is not formed, so that a turbulent flow is generated in the air flow. Is generated so that the thermal conductivity with respect to the air is increased.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上記従
来の集熱板は集熱板の下面にフィンを設けたものなど、
いずれもその作製、加工に面倒な手間を必要とする複雑
な構成であるために、コストが掛かるという課題を有し
ていた。また、前記従来の構成では、一枚の波形状集熱
板において、集熱空間の上層部と下層部とで温度差を生
じ、また集熱板に近い部分と遠い部分とでも温度差を生
じる。しかも集熱板を含めた集熱空間の構造は空気の流
れ方向に同一形状であるため、空気はほとんど層流とし
て流れることになり、集熱空間全体にわたって温度差の
ある空気層が形成されやすい構成となっていた。このた
め、集熱板から空気への伝熱が効率良く行えないので、
集熱効率が低いものになるという課題を有していた。
However, the above-mentioned conventional heat collecting plate is one in which fins are provided on the lower surface of the heat collecting plate.
Both of them have a problem that the cost is high because they have complicated configurations that require troublesome preparation and processing. Further, in the above-described conventional configuration, in one corrugated heat collecting plate, a temperature difference is generated between the upper layer portion and the lower layer portion of the heat collecting space, and a temperature difference is generated between a portion close to the heat collecting plate and a portion far from the heat collecting plate. . Moreover, since the structure of the heat collecting space including the heat collecting plate has the same shape in the air flow direction, most of the air flows as a laminar flow, and an air layer with a temperature difference is likely to be formed throughout the heat collecting space. It was a composition. For this reason, heat cannot be efficiently transferred from the heat collecting plate to the air.
There was a problem that the heat collection efficiency was low.

【0006】本発明は、前記従来の課題を解決するもの
で、集熱板の容易な加工で集熱板から空気への伝熱を促
進し、コスト低減と集熱効率の向上を図る太陽熱集熱装
置を提供することを目的とする。
[0006] The present invention solves the above-mentioned conventional problems, and facilitates heat transfer from the heat collecting plate to the air by easy processing of the heat collecting plate to reduce the cost and improve the heat collecting efficiency. The purpose is to provide a device.

【0007】[0007]

【課題を解決するための手段】前記従来の課題を解決す
るために、本発明の太陽熱集熱装置は、複数個の突起体
を有し表面を太陽光が照射する集熱板と、前記集熱板と
対面して所定の間隔に配された透光板と、空気の吸入口
と、排出口とを備えたものである。
In order to solve the above-mentioned conventional problems, a solar heat collecting apparatus of the present invention comprises a heat collecting plate having a plurality of projections, the surface of which is irradiated by sunlight, and the heat collecting plate. It is provided with a light-transmitting plate facing the heat plate and arranged at a predetermined interval, an air intake port, and an air discharge port.

【0008】これによって、突起体の形成により集熱板
の伝熱面積が増大するとともに、突起体が空気流の境界
層をこわして伝熱を促進するので、容易な加工で伝熱効
率が向上し、コストも低減できる。
As a result, the heat transfer area of the heat collecting plate is increased due to the formation of the projections, and the projections break the boundary layer of the air flow to promote the heat transfer, so that the heat transfer efficiency is improved by the easy machining. Also, the cost can be reduced.

【0009】[0009]

【発明の実施の形態】請求項1に記載の発明は、複数個
の突起体を有し表面を太陽光が照射する集熱板と、前記
集熱板と対面して所定の間隔に配された透光板と、空気
の吸入口と、排出口とを備えたことにより、突起体の形
成により集熱板の伝熱面積が増大するとともに、突起体
が空気流の境界層をこわして伝熱を促進するので、容易
な加工で伝熱効率が向上し、コストも低減できる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a heat collecting plate having a plurality of projections and irradiating the surface with sunlight, and the heat collecting plate is arranged at a predetermined interval so as to face the heat collecting plate. By providing a transparent plate, an air intake port, and an exhaust port, the heat transfer area of the heat collecting plate is increased due to the formation of the protrusions, and the protrusions break the boundary layer of the airflow to transmit the heat. Since heat is promoted, heat transfer efficiency can be improved by easy processing and cost can be reduced.

【0010】請求項2に記載の発明は、伝熱要素を有す
る通気孔が複数個形成され表面を太陽光が照射する集熱
板と、前記集熱板と対面して所定の間隔に配された透光
板と、集熱板の上面または下面のいずれかに設けた空気
の吸入口と、前記集熱板の前記吸入口がある反対面に設
けた排出口とを備えたことにより、伝熱要素を形成しな
がら集熱板に孔を打ち抜くだけなので、加工が容易でコ
ストも低減できる。また、空気流が狭い通気孔を通過す
る際に熱を集熱板から空気へ伝えるので、温度成層が形
成されることなく空気への伝熱が効率よく行え、集熱効
率の向上を図ることができる。
According to a second aspect of the present invention, a plurality of vent holes having heat transfer elements are formed and a heat collecting plate on the surface of which sunlight is radiated, and the heat collecting plate is arranged at a predetermined interval so as to face the heat collecting plate. A light-transmitting plate, an air intake port provided on either the upper surface or the lower surface of the heat collecting plate, and an exhaust port provided on the opposite surface of the heat collecting plate on which the suction port is provided. Since only holes are punched in the heat collecting plate while forming the heat elements, the processing is easy and the cost can be reduced. In addition, since heat is transferred from the heat collecting plate to the air when the air flow passes through the narrow ventilation hole, heat can be efficiently transferred to the air without forming a temperature stratification, and the heat collecting efficiency can be improved. it can.

【0011】請求項3に記載の発明は、特に請求項2記
載の伝熱要素を有する通気孔を、伝熱要素となる切り起
こし部が空気の流れ方向と略並行になるよう集熱板を切
り起こし、通気孔としての切り起こし孔で形成すること
により、切り起こし部を有する通気孔を集熱板に形成す
るので、加工が容易でコストも低減できる。また、空気
流が狭い通気孔を通過する際に熱を集熱板から空気へ伝
えるので、温度成層が形成されることなく空気への伝熱
が効率よく行え、集熱効率の向上を図ることができる。
そして、空気流に沿って切り起こし部が設けられている
ので、通風抵抗を増大させることなく伝熱要素を形成す
ることができる。
According to a third aspect of the present invention, in particular, a vent hole having the heat transfer element according to the second aspect is provided with a heat collecting plate so that a cut-and-raised portion serving as the heat transfer element is substantially parallel to the air flow direction. By forming the cut-and-raised holes as cut-and-raised holes, the vent holes having cut-and-raised parts are formed in the heat collecting plate, so that the processing is easy and the cost can be reduced. In addition, since heat is transferred from the heat collecting plate to the air when the air flow passes through the narrow ventilation hole, heat can be efficiently transferred to the air without forming a temperature stratification, and the heat collecting efficiency can be improved. it can.
Since the cut-and-raised portion is provided along the air flow, the heat transfer element can be formed without increasing the ventilation resistance.

【0012】請求項4に記載の発明は、特に請求項2記
載の集熱板を、空気の吸入口側と排出口側とで異なる通
気孔開口率を有するものにすることにより、開口率を変
化させることにより、吸入口側と排出口側を通過する空
気の流量比を設定することが可能となる。そして、空気
流量を小さくして太陽熱集熱による温度上昇を大きくす
る運転を行った場合に、排出口側での空気比体積の増大
により通気孔の通過抵抗増大が生じることを防いだり、
あるいは空気流量を大きくして運転した場合に各通気孔
を通過する流量を均等にすることなどが可能となり、開
口率の分布による伝熱効率の向上を図れ、集熱効率を向
上できる。
According to a fourth aspect of the present invention, in particular, the heat collecting plate according to the second aspect is provided with different vent hole opening ratios on the air inlet side and the air outlet side, so that the aperture ratio is increased. By changing it, it becomes possible to set the flow rate ratio of the air passing through the inlet side and the outlet side. Then, when the operation is performed to reduce the air flow rate and increase the temperature rise due to solar heat collection, it is possible to prevent an increase in the passage resistance of the vent hole due to an increase in the specific air volume at the outlet side,
Alternatively, when operating with a large air flow rate, it becomes possible to equalize the flow rate passing through each ventilation hole, and the heat transfer efficiency can be improved by the distribution of the opening ratio, and the heat collection efficiency can be improved.

【0013】請求項5に記載の発明は、特に請求項2記
載の集熱板を、空気の吸入口側と排出口側とで異なる開
口面積の通気孔を有するものにすることにより、開口面
積を変化させることにより、通気孔を通過する空気の流
速とそれに応じた熱伝達率とを、吸入口側と排出口側の
通気孔でそれぞれ設定することが可能となり、伝熱効率
の向上を図れ、集熱効率を向上できる。
According to a fifth aspect of the present invention, in particular, the heat collecting plate according to the second aspect is provided with vent holes having different opening areas on the air intake port side and the air exhaust port side. By changing the, it becomes possible to set the flow velocity of the air passing through the ventilation hole and the heat transfer coefficient corresponding to it, respectively, at the ventilation holes on the inlet side and the outlet side, and it is possible to improve the heat transfer efficiency. The heat collection efficiency can be improved.

【0014】請求項6に記載の発明は、特に、伝熱要素
を有する通気孔を形成した複数の集熱板を備え、前記集
熱板をそれぞれ所定の間隔で対面させて複数段に配設
し、透光板側である上段の集熱板の通気孔を太陽光線が
通過しても下段の集熱板に太陽光線が照射するようにし
たことにより、集熱板への通気孔の形成により太陽から
の熱線が上段の集熱板に照射せず通気孔を通過しても、
下段の集熱板に太陽光を照射することが可能となるの
で、熱線の受熱面積でもある太陽光の受光面積が通気孔
の開口率に依って減少せず、伝熱効率の増大と集熱効率
の向上との両立を図ることができる。
In particular, the invention according to claim 6 is provided with a plurality of heat collecting plates each having a vent hole having a heat transfer element, and the heat collecting plates are arranged in a plurality of stages so as to face each other at predetermined intervals. However, even if the sunlight passes through the ventilation holes of the upper heat collecting plate on the side of the translucent plate, the lower heat collecting plate is irradiated with the sunlight so that the ventilation holes are formed in the heat collecting plate. By this, even if the heat rays from the sun pass through the ventilation holes without irradiating the upper heat collecting plate,
Since it is possible to irradiate the lower heat collecting plate with sunlight, the light receiving area of the sunlight, which is also the heat receiving area of the heat rays, does not decrease due to the aperture ratio of the ventilation holes, increasing the heat transfer efficiency and the heat collecting efficiency. It is possible to achieve both improvement and improvement.

【0015】請求項7に記載の発明は、特に、排出口と
は集熱板を隔てて反対側にあたる吸入口と同一面側の前
記集熱板近傍に設けた副排出口を備え、吸入口からの空
気流の一部を前記集熱板に沿って流し通気孔を通過する
ことなく副排出口から排出するようにしたことにより、
集熱板に沿って流れる気流を作り出せるので、集熱板と
空気流との接触機会が増大し、有効な伝熱面積が増加す
るので、空気への伝熱が効率よく行え、集熱効率の向上
を図ることができる。
According to a seventh aspect of the present invention, in particular, a sub-exhaust port is provided in the vicinity of the heat collecting plate on the same surface side as the suction port on the opposite side of the heat collecting plate from the discharge port. By flowing a part of the air flow from the heat collecting plate along the heat collecting plate so as to be discharged from the auxiliary discharge port without passing through the ventilation hole,
Since the airflow flowing along the heat collecting plate can be created, the chances of contact between the heat collecting plate and the air flow are increased, and the effective heat transfer area is increased, so that the heat transfer to the air can be performed efficiently and the heat collecting efficiency is improved. Can be achieved.

【0016】請求項8に記載の発明は、特に、伝熱要素
を有する通気孔が複数個形成された集熱板と、吸入口と
同一面側の前記集熱板近傍に設けた副排出口と、前記集
熱板の前記吸入口および前記副排出口と同一面側に設け
た複数個の突起体を備えたことにより、集熱板に沿って
流れる気流において、突起体の形成により集熱板の伝熱
面積が増大するとともに伝熱促進効果も生じるので、容
易な加工で伝熱効率が向上する。
According to the present invention, in particular, a heat collecting plate having a plurality of ventilation holes having heat transfer elements and an auxiliary discharge port provided in the vicinity of the heat collecting plate on the same side as the suction port are provided. And a plurality of protrusions provided on the same side of the heat collecting plate as the intake port and the sub-exhaust port, the heat collecting by the formation of the protrusions in the airflow flowing along the heat collecting plate. Since the heat transfer area of the plate is increased and the heat transfer promotion effect is also produced, the heat transfer efficiency is improved by easy processing.

【0017】[0017]

【実施例】以下に本発明の実施例について、図面を参照
しながら説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0018】(実施例1)図1は、本発明の第1の実施
例における太陽熱集熱装置の斜視図を示すものであり、
図2は、同実施例における太陽熱集熱装置の要部を上下
反転して拡大した要部拡大図を示すものである。
(Embodiment 1) FIG. 1 is a perspective view of a solar heat collecting apparatus according to a first embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of the solar heat collector of the embodiment, which is vertically inverted and enlarged.

【0019】図1、図2において、太陽熱集熱装置の本
体11は、上面を太陽光線を透過する透光板12、下面
を断熱材からなる裏板13、側面を枠体14で形成され
た箱状に構成されている。本体11の内部には透光板1
2と裏板13の間に集熱板15が、透光板12と対面し
て所定の間隔に配されている。空気の吸入口16は、裏
板13側である集熱板15裏面空間の一方の端部側面に
開口し、対面する側面には排出口17が設けられ、集熱
板15の裏面空間の幅一杯にわたり開口した吸入口16
と排出口17の間を裏側通路18として形成している。
そして、集熱板15には金属薄板を黒色塗装したもの
や、金属薄板の表面を炭化ジルコニウムや酸化クロム等
で処理し、太陽光を効率よく得るような選択吸収処理を
施したものが用いられているとともに、プレス加工によ
り形成された円錐状の突起体である円錐突起19が下方
を凸にして多数設けられている。
In FIGS. 1 and 2, a main body 11 of the solar heat collector has a transparent plate 12 for transmitting sunlight rays on an upper surface, a back plate 13 made of a heat insulating material on a lower surface, and a frame body 14 on a side surface. It is configured like a box. The transparent plate 1 is provided inside the main body 11.
A heat collecting plate 15 is arranged between the back plate 13 and the back plate 13 so as to face the translucent plate 12 at a predetermined interval. The air suction port 16 is open to one end side surface of the back surface of the heat collecting plate 15 on the side of the back plate 13, and the discharge opening 17 is provided on the facing side surface so that the width of the back surface space of the heat collecting plate 15 is increased. Inhalation port 16 opened all over
A back side passage 18 is formed between the discharge port 17 and the discharge port 17.
As the heat collecting plate 15, a metal thin plate coated in black, or a metal thin plate whose surface is treated with zirconium carbide, chromium oxide, or the like and subjected to a selective absorption treatment for efficiently obtaining sunlight is used. In addition, a large number of conical protrusions 19 that are conical protrusions formed by pressing are provided with the downward convex.

【0020】以上のように構成された太陽熱集熱装置に
ついて、以下その動作、作用を説明する。
The operation and action of the solar heat collector having the above structure will be described below.

【0021】本太陽熱集熱装置を家屋の屋根上等に設置
し、晴天時に太陽光線が本体11に照射されると、太陽
光線が透光板12を通過して集熱板15に当たる。これ
により集熱板15が太陽熱を受熱し昇温される。送風手
段(図示せず)等により吸入口16より導入された比較
的低温の空気は、裏側通路18を集熱板15の裏側に沿
って排出口17側へ流れる間に、太陽光線により昇温さ
れた集熱板15から熱を受けて温度上昇し、排出口17
から本体11外部へ導かれ、水またはヒートポンプの冷
媒と熱交換して熱利用されたり、直接暖房に利用された
りする。このとき、集熱板15には円錐突起19が設け
られているので、裏側通路18を流れる空気は、この円
錐突起19と衝突することで伝熱が促進されるととも
に、乱流となり集熱板15近傍の温度境界層をこわして
伝熱を促進する。さらに、円錐突起19を設けることで
集熱板15の伝熱面積が増大し、プレスによる円錐突起
19の形成という容易な加工で伝熱効率が向上し、加工
コストの増大を防ぎコストを低減できる。
When the solar heat collecting apparatus is installed on the roof of a house or the like and the sunlight is applied to the main body 11 in fine weather, the sunlight passes through the transparent plate 12 and hits the heat collecting plate 15. As a result, the heat collecting plate 15 receives solar heat and is heated. The relatively low temperature air introduced from the suction port 16 by a blower (not shown) or the like is heated by the sun rays while flowing through the back passage 18 along the back side of the heat collecting plate 15 to the discharge port 17 side. The heat is collected from the collected heat collecting plate 15 and its temperature rises, and the discharge port 17
Is introduced from the main body 11 to the outside of the main body 11 and exchanges heat with water or a refrigerant of a heat pump to be used as heat or directly used for heating. At this time, since the heat collecting plate 15 is provided with the conical protrusions 19, the air flowing through the back passage 18 collides with the conical protrusions 19 to promote heat transfer and become a turbulent flow to form a heat collecting plate. The thermal boundary layer near 15 is broken to promote heat transfer. Further, by providing the conical projections 19, the heat transfer area of the heat collecting plate 15 is increased, and the heat transfer efficiency is improved by the easy processing of forming the conical projections 19 by pressing, and it is possible to prevent an increase in the processing cost and reduce the cost.

【0022】なお、本実施例では突起体としてプレス加
工した円錐突起19を用いたもので説明したが、例えば
三角錐や半球状などの他形状の突起体であっても同様の
作用、効果が得られることは明らかである。
Although the present embodiment has been described by using the conical projections 19 which are pressed as the projections, the same action and effect can be obtained even if the projections have other shapes such as a triangular pyramid and a hemisphere. It is clear that it can be obtained.

【0023】(実施例2)図3は、本発明の第2の実施
例の太陽熱集熱装置の斜視図を示すものであり、図4
は、同実施例における太陽熱集熱装置の要部を上下反転
して拡大した要部拡大図を示すものである。
(Embodiment 2) FIG. 3 is a perspective view of a solar heat collecting apparatus according to a second embodiment of the present invention.
[Fig. 4] is an enlarged view of a main part of a solar heat collector in the same embodiment, which is upside down and enlarged.

【0024】図3、図4において、空気の吸入口20
は、透光板12と集熱板15とで挟まれた空間である表
側通路21の一方の端部側面に開口し、排出口22は対
面する側面の、集熱板15と裏板13に挟まれた裏側通
路23に開口するように設けられている。そして、黒色
塗装した金属薄板製の集熱板15には、伝熱要素である
つば部24を備えた通気孔として、バーリング孔(つば
付き孔)25が多数設けられ、その単位面積あたりの個
数である密度分布は、吸入口20側は小さく(疎)、排
出口22側は大きく(密)なっている。そして、集熱板
15の端部は表側通路21と裏側通路23との間を密閉
し、表側通路21から裏側通路23へ流れる空気は複数
のバーリング孔25のみを通過するように構成されてい
る。
In FIGS. 3 and 4, the air intake port 20 is shown.
Is open at one end side surface of the front side passage 21 which is a space sandwiched between the light transmitting plate 12 and the heat collecting plate 15, and the discharge port 22 is provided at the heat collecting plate 15 and the back plate 13 on the facing side surface. It is provided so as to open to the sandwiched back side passage 23. Further, the black-painted thin metal plate 15 is provided with a large number of burring holes (holes with flanges) 25 as ventilation holes having the flange portion 24 which is a heat transfer element, and the number of burring holes 25 per unit area. The density distribution of is smaller (sparse) on the suction port 20 side and larger (dense) on the discharge port 22 side. The end of the heat collecting plate 15 seals the space between the front passage 21 and the back passage 23, and the air flowing from the front passage 21 to the back passage 23 passes through only the burring holes 25. .

【0025】以上の構成において、その動作、作用につ
いて説明する。
The operation and action of the above structure will be described.

【0026】まず、吸入口20から表側通路21に導入
された低温の空気は、集熱板15に設けられた複数のバ
ーリング孔25を集熱板15の表から裏に通過して、裏
側通路23へ入り、排出口22へと流れ、この間に空気
は集熱板15の表面、裏面と接触しながら熱を受けて昇
温される。同じ受熱量に対し空気流量が小さいほど、空
気の温度上昇が大きくなるので、吸入口20からの導入
空気流量を小さく設定すると、導入された空気は集熱板
15から受熱し、排出口22側へ流れるほど高温にな
る。高温の空気は低温の空気よりも比体積が大きくなる
ので、排出口22側では通気孔を通過する空気抵抗は大
きくなる傾向にあるが、通気孔の密度分布を設けて排出
口22側のバーリング孔25の密度を密にしているの
で、一つの通気孔を通る通過空気量は小さくなり、抵抗
の増大を防ぐことができる。一方、集熱板15に沿わず
に流れた空気もバーリング孔25を通過する際に、つば
部24に接触しながら受熱する。このとき、バーリング
孔25の近傍で空気流れの乱れが生じて、集熱板15表
面の境界層で乱流となり、熱伝導係数が大きくなること
で、集熱効率が向上する。また、空気流が狭いバーリン
グ孔25を通過する際は、集熱板15に沿う主流とは異
なる略垂直流れとなるので、集熱板15に近いほど高温
である温度成層が形成されるのを防ぎ、空気への伝熱が
効率よく行え、集熱効率の向上を図ることができる。
First, the low-temperature air introduced from the suction port 20 into the front passage 21 passes through the plurality of burring holes 25 provided in the heat collecting plate 15 from the front side to the back side of the heat collecting plate 15, and the back side passage. 23, and flows to the discharge port 22. During this time, the air is heated while contacting the front surface and the back surface of the heat collecting plate 15 and receiving heat. The smaller the air flow rate with respect to the same amount of heat received, the greater the temperature rise of the air. Therefore, when the flow rate of the introduced air from the suction port 20 is set small, the introduced air receives the heat from the heat collecting plate 15 and the discharge port 22 side. The higher the temperature, the higher the temperature. Since the high-temperature air has a larger specific volume than the low-temperature air, the air resistance passing through the ventilation holes tends to increase on the discharge port 22 side, but the density distribution of the ventilation holes is provided to form the burring on the discharge port 22 side. Since the density of the holes 25 is high, the amount of air passing through one air hole is small, and the increase in resistance can be prevented. On the other hand, when the air that has not flowed along the heat collecting plate 15 passes through the burring holes 25, it also receives heat while coming into contact with the brim portion 24. At this time, turbulence of the air flow occurs in the vicinity of the burring holes 25, resulting in turbulence in the boundary layer on the surface of the heat collecting plate 15 and increasing the heat transfer coefficient, so that the heat collecting efficiency is improved. Further, when the air flow passes through the narrow burring hole 25, it becomes a substantially vertical flow different from the main flow along the heat collecting plate 15, so that a temperature stratification that is higher in temperature closer to the heat collecting plate 15 is formed. It is possible to prevent the heat transfer to the air efficiently and improve the heat collection efficiency.

【0027】以上のように、本第2の実施例においては
集熱板15につば部24を有する複数のバーリング孔2
5を設け、表側通路21から複数のバーリング孔25を
通過して裏側通路23へ空気が流れる構成とすることに
より、空気がバーリング孔25を通過する際に、つば部
24でも受熱するとともに、バーリング孔25の近傍で
空気流れの乱れが生じて集熱板15の表面の境界層で乱
流となり熱伝導係数が大きくなり、さらに空気流がバー
リング孔25を通過する際の略垂直流れが温度成層が形
成されるのを防ぎ、空気への伝熱が効率よく行えるので
集熱効率が向上する。また、バーリング孔25の開口率
を変化させて吸入口20側で疎に、排出口22側で密に
形成しているので、空気流量設定の小さい運転を行った
場合に、排出口22側での空気比体積の増大により、通
気孔の通過抵抗増大が生じることを防止しつつ集熱効率
の向上を図ることができる。
As described above, in the second embodiment, the plurality of burring holes 2 having the collar portion 24 on the heat collecting plate 15 are provided.
5 is provided so that the air flows from the front side passage 21 through the plurality of burring holes 25 to the back side passage 23, so that when the air passes through the burring holes 25, the collar portion 24 also receives heat and burring. Turbulence of the air flow occurs near the holes 25 and becomes turbulent at the boundary layer on the surface of the heat collecting plate 15 to increase the heat transfer coefficient. Further, when the air flow passes through the burring holes 25, the substantially vertical flow is temperature stratified. Are prevented from being formed, and heat can be efficiently transferred to the air, so that the heat collection efficiency is improved. Further, since the opening ratio of the burring holes 25 is changed so that the burring holes 25 are formed sparsely on the suction port 20 side and densely on the discharge port 22 side, when the operation with a small air flow rate setting is performed, the burring hole 25 side is discharged. It is possible to improve the heat collection efficiency while preventing the passage resistance of the ventilation hole from increasing due to the increase in the air specific volume.

【0028】なお、本実施例ではバーリング孔25の開
口率を吸入口20側で疎に、排出口22側で密にした場
合について説明したが、逆の場合、すなわち吸入口20
側で密に、排出口22側で疎にしてもよい。たとえば吸
入口20からの導入空気流量を大きく設定すると、受熱
後の空気の温度上昇値は小さく、集熱板15に沿って流
れる空気の主流は流速が早くなり、表側通路21の端部
で衝突した空気流が方向を変えてバーリング孔25を通
過し易くなるので、排出口22側の方で空気がより多く
通気孔を通過しようとする。しかしながら通気孔の密度
分布を設け、排出口22側のバーリング孔25の密度を
疎にしているので、吸入口20から排出口22までの集
熱板15内において、通気孔を通る単位面積あたりの通
過空気量は略均等となり、集熱板15上で効率良く均一
に空気への伝熱が行える。
In this embodiment, the case where the opening ratio of the burring holes 25 is sparse on the suction port 20 side and dense on the discharge port 22 side has been described, but the opposite case, that is, the suction port 20.
It may be dense on the side and sparse on the outlet 22 side. For example, when the flow rate of the introduced air from the suction port 20 is set to be large, the temperature rise value of the air after receiving the heat is small, the main flow of the air flowing along the heat collecting plate 15 has a high flow velocity, and the collision occurs at the end of the front passage 21. Since the generated air flow changes its direction and easily passes through the burring hole 25, more air tends to pass through the ventilation hole on the side of the discharge port 22. However, since the density distribution of the ventilation holes is provided and the density of the burring holes 25 on the discharge port 22 side is made sparse, in the heat collecting plate 15 from the suction port 20 to the discharge port 22, per unit area passing through the ventilation holes. The amount of passing air becomes substantially equal, and heat can be efficiently and uniformly transferred to the air on the heat collecting plate 15.

【0029】また、本実施例では一枚の透光板12を備
えた構成で説明したが、断熱性向上のために複数枚備え
た構成のものでも良い。さらに、裏側通路23側に吸入
口を、表側通路21側に排出口を開口し、集熱板15の
裏から表へ空気が流れる構成にしても良い。
Further, although the present embodiment has been described as having a single transparent plate 12, a plurality of transparent plates 12 may be provided for improving heat insulation. Further, an air inlet may be opened on the back side passage 23 side and an exhaust port may be opened on the front side passage 21 side so that air flows from the back side of the heat collecting plate 15 to the front side.

【0030】(実施例3)図5は、本発明の第3の実施
例の太陽熱集熱装置の斜視図を示すものであり、図6
は、同実施例における太陽熱集熱装置の要部を上下反転
して拡大した要部拡大図を示すものである。
(Embodiment 3) FIG. 5 is a perspective view of a solar heat collecting apparatus according to a third embodiment of the present invention.
[Fig. 4] is an enlarged view of a main part of a solar heat collector in the same embodiment, which is upside down and enlarged.

【0031】図5、図6において、本体11の内部には
第一集熱板26と第二集熱板27の複数段の集熱板が設
けられ、空気の吸入口20は、透光板12と第一集熱板
26とで挟まれた空間である表側通路21の一方の端部
側面に開口し、排出口22は対面する側面の、第二集熱
板27と裏板13に挟まれた裏側通路23に開口するよ
うに設けられている。28は、2枚の集熱板に挟まれた
空間である中間空気通路である。第一集熱板26と第二
集熱板27はそれぞれ、黒色塗装した金属薄板からな
り、伝熱要素である切り起こし部29を備えた通気孔と
して、切り起こし孔30が多数設けられ、切り起こし部
29は吸入口20と排出口22を結ぶ空気の主流方向と
略並行になるように形成されている。切り起こし孔30
の開口面積は、吸入口20側は大きく、排出口22側は
小さくなるような分布を持っている。そして、第一集熱
板26の端部は表側通路21と中間通路28との間を密
閉し、表側通路21から中間通路28へ流れる空気は第
一集熱板26の複数の切り起こし孔30のみを通過する
ように構成され、第二集熱板27の端部は中間通路28
と裏側通路23との間を密閉し、中間通路28から裏側
通路23へ流れる空気は第二集熱板27の複数の通気孔
のみを通過するように構成されている。第一集熱板26
の通気孔と第二集熱板27の通気孔との位置関係は、図
6に示すように、太陽光線が第一集熱板26の通気孔を
通り抜けても第二集熱板27上に照射するように、通気
孔の位置と開口面積を調節し、夏の照射角度でも冬の照
射角度でも通気孔を通り抜けてしまう太陽光線がほとん
ど生じないようになっている。
5 and 6, a plurality of stages of heat collecting plates, a first heat collecting plate 26 and a second heat collecting plate 27, are provided inside the main body 11, and the air inlet 20 is a transparent plate. 12 and the first heat collecting plate 26, which is a space sandwiched between the first heat collecting plate 26 and the front side passage 21. The discharge port 22 is sandwiched between the second heat collecting plate 27 and the back plate 13 on the opposite side faces. It is provided so as to open into the closed back passage 23. 28 is an intermediate air passage which is a space sandwiched between two heat collecting plates. Each of the first heat collecting plate 26 and the second heat collecting plate 27 is made of a black-painted metal thin plate, and a large number of cut-and-raised holes 30 are provided as ventilation holes having cut-and-raised parts 29 that are heat transfer elements. The raised portion 29 is formed so as to be substantially parallel to the mainstream direction of air that connects the suction port 20 and the discharge port 22. Cut and raised hole 30
The distribution of the opening area is large on the suction port 20 side and small on the discharge port 22 side. The end of the first heat collecting plate 26 seals the space between the front passage 21 and the intermediate passage 28, and the air flowing from the front passage 21 to the intermediate passage 28 has a plurality of cut-and-raised holes 30 in the first heat collecting plate 26. The second heat collecting plate 27 is configured to pass through only the intermediate passage 28.
The air flowing from the intermediate passage 28 to the back side passage 23 is configured to pass only through the plurality of ventilation holes of the second heat collecting plate 27. First heat collecting plate 26
As shown in FIG. 6, the positional relationship between the air holes of the second heat collecting plate 27 and the air holes of the second heat collecting plate 27 remains on the second heat collecting plate 27 even if the sunlight passes through the air holes of the first heat collecting plate 26. The position and opening area of the ventilation holes are adjusted so as to irradiate so that almost no sun rays will pass through the ventilation holes at both the irradiation angle in summer and the irradiation angle in winter.

【0032】以上の構成において、その動作、作用につ
いて説明する。
The operation and action of the above structure will be described.

【0033】太陽光線が透光板を通過して第一集熱板2
6に照射されるとき、第二集熱板27も備えているの
で、通気孔の開口により熱線の受熱面積でもある太陽光
の受光面積が通気孔の開口率に依って減少せず、空気へ
の伝熱量を確保して伝熱効率の増大と集熱効率の向上と
の両立を図ることができる。
The first heat collecting plate 2 after the sunlight passes through the transparent plate.
Since the second heat collecting plate 27 is also provided when irradiating 6, the light receiving area of sunlight, which is also the heat receiving area of the heat rays, does not decrease due to the opening of the ventilation hole due to the opening ratio of the ventilation hole, It is possible to secure both the amount of heat transfer and increase the heat transfer efficiency and improve the heat collection efficiency at the same time.

【0034】そして、吸入口20から表側通路21に導
入された低温の空気は、集熱板15に設けられた複数の
切り起こし孔30を第一集熱板26を表から裏に通過し
て、中間通路28、再び第二集熱板27の切り起こし孔
30を通過して裏側通路23へ入り、排出口22へと流
れる。この間に空気は第一集熱板26の表面、裏面と接
触しながら熱を受け、さらに第二集熱板27の表面、裏
面と接触しながら熱を受けて昇温される。二枚の集熱板
に沿わずに流れた空気も切り起こし孔30を通過する際
に、切り起こし部29に接触しながら受熱する。空気流
が狭い通気孔を通過する際に熱を第一集熱板26と第二
集熱板27とから空気へ伝えるので、温度成層が形成さ
れることなく空気への伝熱が効率よく行え、集熱効率の
向上を図ることができる。このとき、切り起こし部29
は空気の流れ方向と略並行に形成されているので、通風
抵抗を増大させることがない。また、切り起こし孔30
の開口面積を吸入口20側で大に、排出口22側で小に
しているので、吸入口20からの導入空気流量が大きい
場合、第一集熱板26に沿って流れる空気の主流は流速
が早くなり、表側通路21の端部で衝突した空気流が方
向を変えて切り起こし孔30を通過し易くなるので、排
出口22側の方で空気がより多く通気孔を通過しようと
する。しかしながら通気孔の開口面積分布を設け、二枚
の集熱板それぞれにおいて通気孔を通る単位面積あたり
の通過空気量および流速、熱伝達率を通気孔の位置に応
じて設定することができるので、排出口22側の開口面
積を小にし熱伝達率を集熱板全面で略均等とすることも
可能となり、集熱板上で効率良く均一に空気への伝熱が
行える。
The low-temperature air introduced from the suction port 20 into the front passage 21 passes through the plurality of cut-and-raised holes 30 provided in the heat collecting plate 15 from the front side to the back side of the first heat collecting plate 26. After passing through the intermediate passage 28 and the cut-and-raised hole 30 of the second heat collecting plate 27 again, it enters the back passage 23 and flows to the discharge port 22. During this time, the air receives heat while making contact with the front and back surfaces of the first heat collecting plate 26, and further receives heat as it makes contact with the front and back surfaces of the second heat collecting plate 27 and is heated. The air that has not flowed along the two heat collecting plates also receives the heat while coming into contact with the cut-and-raised portion 29 when passing through the cut-and-raised hole 30. Since the heat is transferred from the first heat collecting plate 26 and the second heat collecting plate 27 to the air when the air flow passes through the narrow vent hole, the heat transfer to the air can be efficiently performed without forming the temperature stratification. The heat collection efficiency can be improved. At this time, the cut and raised portion 29
Is formed substantially parallel to the air flow direction, so that it does not increase ventilation resistance. Also, the cut-and-raised hole 30
Since the opening area of is large on the suction port 20 side and small on the discharge port 22 side, when the flow rate of the introduced air from the suction port 20 is large, the main flow of the air flowing along the first heat collecting plate 26 is the flow velocity. As a result, the air flow colliding at the end of the front passage 21 changes its direction and easily passes through the cut-and-raised hole 30, so that more air tends to pass through the vent hole on the discharge port 22 side. However, since the opening area distribution of the ventilation holes is provided, the amount of air passing through the ventilation holes and the flow rate per unit area of each of the two heat collecting plates, and the heat transfer coefficient can be set according to the positions of the ventilation holes. It is also possible to reduce the opening area on the side of the discharge port 22 so that the heat transfer coefficient is substantially uniform over the entire surface of the heat collecting plate, and heat can be efficiently and uniformly transferred to the air on the heat collecting plate.

【0035】以上のように、本第3の実施例においては
切り起こし部29を有する複数の切り起こし孔30を、
切り起こし部29が空気の流れ方向と略並行になるよう
集熱板を切り起こして設け、複数の切り起こし孔30を
通過して集熱板を表から裏へ空気が流れる構成とするこ
とにより、空気流が狭い切り起こし孔30を通過する際
に、切り起こし部29でも受熱し、熱を集熱板から空気
へ伝えるので、温度成層が形成されることなく空気への
伝熱が効率よく行え、容易な加工で集熱効率の向上を図
ることができる。そして、空気流に沿って切り起こし部
が設けられているので、通風抵抗を増大させることなく
伝熱要素を形成することができる。また、切り起こし孔
30の開口面積の分布を変化させて、吸入口20側の開
口面積を大に、排出口22側では小に、異なる開口面積
に形成しているので、開口面積を変化させることによ
り、通気孔を通過する空気の流速とそれに応じた熱伝達
率とを、吸入口20側と排出口22側の通気孔でそれぞ
れ設定することが可能となり、伝熱効率の向上を図れ、
集熱効率を向上できる。さらに、切り起こし部29を有
する切り起こし孔30を形成した第一集熱板26と第二
集熱板27の二枚の集熱板を備え、集熱板二枚をそれぞ
れ所定の間隔で対面させて複数段に配設し、透光板側で
ある上段の第一集熱板26の切り起こし孔30を太陽光
線が通過しても下段の第二集熱板27に太陽光線が照射
するようにしているので、熱線の受熱面積でもある太陽
光の受光面積が通気孔の開口率に依って減少せず、空気
への伝熱量を確保して伝熱効率の増大と集熱効率の向上
との両立を図ることができる。
As described above, in the third embodiment, a plurality of cut and raised holes 30 having the cut and raised portions 29 are formed,
The heat collecting plate is cut and raised so that the cut-and-raised portion 29 is substantially parallel to the air flow direction, and the heat collecting plate is configured to flow through the plurality of cut-and-raised holes 30 from front to back. When the air flow passes through the narrow cut-and-raised hole 30, the cut-and-raised portion 29 also receives the heat and transfers the heat from the heat collecting plate to the air, so that the heat transfer to the air is efficiently performed without forming the temperature stratification. It is possible to improve the heat collection efficiency with easy processing. Since the cut-and-raised portion is provided along the air flow, the heat transfer element can be formed without increasing the ventilation resistance. Further, the distribution of the opening area of the cut-and-raised holes 30 is changed so that the opening area on the suction port 20 side is made large and the opening area on the discharge port 22 side is made small, so that the opening area is changed. This makes it possible to set the flow velocity of the air passing through the ventilation hole and the heat transfer coefficient corresponding thereto with the ventilation holes on the intake port 20 side and the exhaust port 22 side, respectively, and improve the heat transfer efficiency.
The heat collection efficiency can be improved. Further, it is provided with two heat collecting plates, a first heat collecting plate 26 and a second heat collecting plate 27, in which cut and raised holes 30 having cut and raised portions 29 are formed, and the two heat collecting plates face each other at predetermined intervals. Thus, even if the sun rays pass through the cut-and-raised holes 30 of the upper first heat collecting plate 26 on the side of the transparent plate, the second heat collecting plate 27 of the lower stage is irradiated with the sun rays. Therefore, the light receiving area of sunlight, which is also the heat receiving area of the heat rays, does not decrease due to the opening ratio of the ventilation holes, and the amount of heat transferred to the air is secured to increase the heat transfer efficiency and improve the heat collection efficiency. It is possible to achieve both.

【0036】なお、本実施例では切り起こし孔30を用
いた構成について説明したが、前述のバーリング孔な
ど、他の伝熱要素を有する通気孔を用いても同様の作用
・効果が得られることは明らかである。また本実施例で
は切り起こし孔30の開口面積を吸入口20側で大に、
排出口22側で小にした場合について説明したが、本体
11の構成に応じて集熱板での熱伝達率が最適なるよう
に、どのような開口面積分布を設けても良い。
Although the structure using the cut-and-raised holes 30 has been described in the present embodiment, the same action and effect can be obtained by using the ventilation holes having other heat transfer elements such as the above-mentioned burring holes. Is clear. Further, in this embodiment, the opening area of the cut-and-raised hole 30 is increased on the suction port 20 side,
Although the case where the discharge port 22 side is made small has been described, any opening area distribution may be provided so that the heat transfer coefficient in the heat collecting plate is optimized according to the configuration of the main body 11.

【0037】(実施例4)図7は、本発明の第4の実施
例の太陽熱集熱装置の斜視図を示すものである。
(Embodiment 4) FIG. 7 is a perspective view of a solar heat collecting apparatus according to a fourth embodiment of the present invention.

【0038】図7において、11は本体、12は透光
板、13は裏板、14は枠体、15は集熱板、19は円
錐突起、20は吸入口、21は表側通路、22は排出
口、23は裏側通路、24はつば部、25はバーリング
孔で、実施例1および実施例2の構成と異なるところ
は、排出口22が設けられた面と同一面上の集熱板15
を隔てて反対側である表側通路21側に、集熱板近傍か
ら開口した副排出口31を設けた点である。そして、円
錐突起19は表側通路21側に凸になるように設けてあ
る。
In FIG. 7, 11 is a main body, 12 is a translucent plate, 13 is a back plate, 14 is a frame, 15 is a heat collecting plate, 19 is a conical protrusion, 20 is an inlet, 21 is a front passage, and 22 is An outlet, 23 is a rear passage, 24 is a brim portion, and 25 is a burring hole. The difference from the configuration of the first and second embodiments is that the heat collecting plate 15 on the same surface as the surface on which the outlet 22 is provided.
A sub-exhaust port 31 opening from the vicinity of the heat collecting plate is provided on the side of the front passage 21 which is the opposite side of the heat collecting plate. The conical projection 19 is provided so as to be convex toward the front passage 21 side.

【0039】以上の構成において、その動作、作用につ
いて説明する。
The operation and action of the above structure will be described.

【0040】まず、吸入口20から表側通路21に導入
された低温の空気は、集熱板15に設けられた複数のバ
ーリング孔25を集熱板15の表から裏に通過して、裏
側通路23へ入り、排出口22へと流れ、この間に空気
は集熱板15の表面、裏面と接触しながら熱を受けて昇
温される。集熱板15に沿わずに流れた空気もバーリン
グ孔25を通過する際に、つば部24に接触しながら受
熱する。このとき、バーリング孔25の近傍で空気流れ
の乱れが生じて、集熱板15表面の境界層で乱流とな
り、熱伝導係数が大きくなることで、集熱効率が向上す
る。また、バーリング孔25を通過しない空気流の一部
は、副排出口31から排出される。このとき、副排出口
31は集熱板15近傍に開口しているので、集熱板に沿
って流れる気流を作り出せる。この作用により集熱板と
空気流との接触機会、すなわち実際の接触面積が増大し
有効な伝熱面積が増加するので、空気への伝熱が効率よ
く行え、集熱効率の向上を図ることができる。集熱板に
沿って流れる気流においては、集熱板15上の表側空気
通路21側に形成した複数個の円錐突起19により、集
熱板15の伝熱面積がさらに増大するとともに伝熱促進
効果も生じるので、容易な加工で伝熱効率が向上する。
First, the low-temperature air introduced into the front passage 21 from the suction port 20 passes through the plurality of burring holes 25 provided in the heat collecting plate 15 from the front side to the back side of the heat collecting plate 15 to form the back side passage. 23, and flows to the discharge port 22. During this time, the air is heated while contacting the front surface and the back surface of the heat collecting plate 15 and receiving heat. When the air that has not flowed along the heat collecting plate 15 passes through the burring holes 25, the air also receives heat while coming into contact with the collar portion 24. At this time, turbulence of the air flow occurs in the vicinity of the burring holes 25, resulting in turbulence in the boundary layer on the surface of the heat collecting plate 15 and increasing the heat transfer coefficient, so that the heat collecting efficiency is improved. Further, a part of the air flow that does not pass through the burring hole 25 is discharged from the sub discharge port 31. At this time, since the sub outlet 31 is opened in the vicinity of the heat collecting plate 15, an airflow flowing along the heat collecting plate can be created. By this action, the chance of contact between the heat collecting plate and the air flow, that is, the actual contact area increases and the effective heat transfer area increases, so that the heat transfer to the air can be performed efficiently and the heat collection efficiency can be improved. it can. In the airflow flowing along the heat collecting plate, the plurality of conical projections 19 formed on the front air passage 21 side of the heat collecting plate 15 further increase the heat transfer area of the heat collecting plate 15 and promote heat transfer. As a result, heat transfer efficiency is improved by easy processing.

【0041】以上のように、本第4の実施例においては
排出口22とは集熱板15を隔てて反対側にあたる吸入
口20と同一面側、すなわち表側通路21の集熱板15
近傍に副排出口31を設け、吸入口20からの空気流の
一部を集熱板15に沿って流し通気孔を通過することな
く副排出口31から排出することにより、集熱板15に
沿って流れる気流を作り出せるので、集熱板と空気流と
の接触機会が増大し、有効な伝熱面積が増加するので、
空気への伝熱が効率よく行え、集熱効率の向上を図るこ
とができる。また、集熱板15の吸入口20および副排
出口31と同一面側、すなわち表側通路21側の集熱板
15上に複数個の突起体である円錐突起19を設けたこ
とにより、集熱板15に沿って流れる気流において、円
錐突起19の形成により集熱板15の伝熱面積が増大す
るとともに伝熱促進効果も生じるので、容易な加工で伝
熱効率が向上する。
As described above, in the fourth embodiment, the heat collecting plate 15 of the front side passage 21 is flush with the suction port 20, which is the opposite side of the discharge port 22 from the heat collecting plate 15.
By providing a sub-exhaust port 31 in the vicinity and causing a part of the air flow from the intake port 20 to flow along the heat collecting plate 15 and to be discharged from the sub-exhaust port 31 without passing through the ventilation hole, Since it is possible to create an air flow that flows along, the chances of contact between the heat collecting plate and the air flow are increased, and the effective heat transfer area is increased.
Heat can be efficiently transferred to the air, and heat collection efficiency can be improved. In addition, the heat collecting plate 15 is provided with the conical projections 19 which are a plurality of projections on the same surface side as the intake port 20 and the sub-exhaust port 31, that is, on the front side passage 21 side, so that the heat collecting plate 15 can collect heat. In the air flow flowing along the plate 15, the conical projections 19 increase the heat transfer area of the heat collecting plate 15 and also have the effect of promoting heat transfer, so that the heat transfer efficiency is improved by easy processing.

【0042】なお、本実施例では表側通路21から裏側
通路23に空気が流れる構成で説明したが、裏側通路2
3側に吸入口20を、表側通路21側に排出口22を開
口し、集熱板15の裏から表へ空気が流れる構成にし、
裏側通路23側の集熱板15近傍から開口する副排出口
31を設けても良い。また、集熱板を複数段設ける構成
にしても良い。
In this embodiment, the air flows from the front passage 21 to the back passage 23, but the back passage 2
3 has a suction port 20 and a front passage 21 has a discharge port 22 so that air flows from the back side of the heat collecting plate 15 to the front side.
A sub-exhaust port 31 may be provided that opens from the vicinity of the heat collecting plate 15 on the back passage 23 side. Further, the heat collecting plate may be provided in a plurality of stages.

【0043】[0043]

【発明の効果】以上のように、請求項1〜8記載の発明
によれば、加工が容易でコストも低減できる。また、空
気への伝熱が効率よく行え、集熱効率の向上を図ること
ができる。
As described above, according to the invention described in claims 1 to 8, the processing is easy and the cost can be reduced. Also, heat transfer to the air can be performed efficiently, and heat collection efficiency can be improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例1における太陽熱集熱装置の斜
視図
FIG. 1 is a perspective view of a solar heat collector according to a first embodiment of the present invention.

【図2】本発明の実施例1における太陽熱集熱装置の要
部拡大図
FIG. 2 is an enlarged view of a main part of the solar heat collector in Embodiment 1 of the present invention.

【図3】本発明の実施例2における太陽熱集熱装置の斜
視図
FIG. 3 is a perspective view of a solar heat collecting apparatus according to a second embodiment of the present invention.

【図4】本発明の実施例2における太陽熱集熱装置の要
部拡大図
FIG. 4 is an enlarged view of a main part of a solar heat collector according to a second embodiment of the present invention.

【図5】本発明の実施例3における太陽熱集熱装置の斜
視図
FIG. 5 is a perspective view of a solar heat collector according to a third embodiment of the present invention.

【図6】本発明の実施例3における太陽熱集熱装置の要
部拡大図
FIG. 6 is an enlarged view of a main part of a solar heat collector according to a third embodiment of the present invention.

【図7】本発明の実施例4における太陽熱集熱装置の斜
視図
FIG. 7 is a perspective view of a solar heat collector according to a fourth embodiment of the present invention.

【図8】従来の太陽熱集熱装置の斜視図FIG. 8 is a perspective view of a conventional solar heat collector.

【符号の説明】[Explanation of symbols]

12 透光板 15 集熱板 16 吸入口 17 排出口 19 円錐突起(突起体) 20 吸入口 22 排出口 24 つば部(伝熱要素) 25 バーリング孔(通気孔) 26 第一集熱板 27 第二集熱板 29 切り起こし部(伝熱要素) 30 切り起こし孔(通気孔) 31 副排出口 12 translucent plate 15 Heat collecting plate 16 suction port 17 outlet 19 Conical projection (projection body) 20 suction port 22 Outlet 24 Collar (heat transfer element) 25 Burring holes (vents) 26 First heat collecting plate 27 Second heat collecting plate 29 Cut-and-raised part (heat transfer element) 30 Cut and raised holes (vent holes) 31 Secondary discharge port

───────────────────────────────────────────────────── フロントページの続き (72)発明者 今林 敏 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 西山 吉継 大阪府門真市大字門真1006番地 松下電器 産業株式会社内   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Satoshi Imabayashi             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Yoshitsugu Nishiyama             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd.

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 複数個の突起体を有し表面を太陽光が照
射する集熱板と、前記集熱板と対面して所定の間隔に配
された透光板と、空気の吸入口と、排出口とを備えた太
陽熱集熱装置。
1. A heat collecting plate having a plurality of protrusions for irradiating the surface with sunlight, a transparent plate arranged at a predetermined interval facing the heat collecting plate, and an air inlet. , A solar heat collector with an outlet.
【請求項2】 伝熱要素を有する通気孔が複数個形成さ
れ表面を太陽光が照射する集熱板と、前記集熱板と対面
して所定の間隔に配された透光板と、集熱板の上面また
は下面のいずれかに設けた空気の吸入口と、前記集熱板
の前記吸入口がある反対面に設けた排出口とを備えた太
陽熱集熱装置。
2. A heat collecting plate having a plurality of vent holes each having a heat transfer element, the surface of which is exposed to sunlight, and a translucent plate facing the heat collecting plate and arranged at a predetermined interval. A solar heat collecting apparatus comprising: an air inlet provided on either the upper surface or the lower surface of a heat plate; and an outlet provided on the opposite surface of the heat collecting plate where the inlet is located.
【請求項3】 伝熱要素となる切り起こし部が空気の流
れ方向と略並行になるよう集熱板を切り起こし、通気孔
としての切り起こし孔を備えた請求項2記載の太陽熱集
熱装置。
3. The solar heat collecting apparatus according to claim 2, wherein the heat collecting plate is cut and raised such that the cut-and-raised portion which becomes a heat transfer element is substantially parallel to the air flow direction, and the cut-and-raised hole is provided as a ventilation hole. .
【請求項4】 空気の吸入口側と排出口側とで異なる通
気孔開口率を有する集熱板を備えた請求項2または3記
載の太陽熱集熱装置。
4. The solar heat collecting apparatus according to claim 2, further comprising a heat collecting plate having different vent hole opening ratios on the air inlet side and the air outlet side.
【請求項5】 空気の吸入口側と排出口側とで異なる開
口面積の通気孔を有する集熱板を備えた請求項2〜4の
いずれか1項記載の太陽熱集熱装置。
5. The solar heat collecting apparatus according to claim 2, further comprising a heat collecting plate having ventilation holes having different opening areas on the air inlet side and the air outlet side.
【請求項6】 伝熱要素を有する通気孔を形成した複数
の集熱板を備え、前記集熱板をそれぞれ所定の間隔で対
面させて複数段に配設し、透光板側である上段の集熱板
の通気孔を太陽光線が通過しても下段の集熱板に太陽光
線が照射するようにした請求項2〜5のいずれか1項に
記載の太陽熱集熱装置。
6. An upper stage which is a translucent plate side, comprising a plurality of heat collecting plates each having a vent hole having a heat transfer element, said heat collecting plates being arranged in a plurality of stages facing each other at predetermined intervals. The solar heat collecting apparatus according to any one of claims 2 to 5, wherein the solar light is applied to the lower heat collecting plate even when the solar light passes through the ventilation holes of the heat collecting plate.
【請求項7】 排出口とは集熱板を隔てて反対側にあた
る吸入口と同一面側の前記集熱板近傍に設けた副排出口
を備え、吸入口からの空気流の一部を前記集熱板に沿っ
て流し通気孔を通過することなく副排出口から排出する
請求項2〜6のいずれか1項に記載の太陽熱集熱装置。
7. A sub-exhaust port is provided near the heat collecting plate on the same surface side as the suction port which is on the opposite side of the heat collecting plate from the discharge port, and a part of the air flow from the suction port is The solar heat collecting apparatus according to any one of claims 2 to 6, wherein the solar heat collector flows along the heat collecting plate and is discharged from the auxiliary discharge port without passing through the ventilation hole.
【請求項8】 伝熱要素を有する通気孔が複数個形成さ
れた集熱板と、吸入口と同一面側の前記集熱板近傍に設
けた副排出口と、前記集熱板の前記吸入口および前記副
排出口と同一面側に設けた複数個の突起体を備えた請求
項7記載の太陽熱集熱装置。
8. A heat collecting plate having a plurality of vent holes each having a heat transfer element, an auxiliary discharge port provided in the vicinity of the heat collecting plate on the same plane as the suction port, and the suction of the heat collecting plate. The solar heat collecting apparatus according to claim 7, further comprising a plurality of protrusions provided on the same side as the mouth and the sub outlet.
JP2002117242A 2002-04-19 2002-04-19 Solar energy collector Withdrawn JP2003314901A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

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JP2002117242A JP2003314901A (en) 2002-04-19 2002-04-19 Solar energy collector

Publications (1)

Publication Number Publication Date
JP2003314901A true JP2003314901A (en) 2003-11-06

Family

ID=29534518

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2003314901A (en)

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JP2012002494A (en) * 2010-05-18 2012-01-05 Mitaka Koki Co Ltd Solar heat type air heating device
EP1936095A3 (en) * 2006-12-18 2013-03-27 SCHÜCO International KG Window
JP2013237978A (en) * 2012-05-11 2013-11-28 Panasonic Corp Roof structure
JP2014513262A (en) * 2011-04-08 2014-05-29 キャメロン・リチャード・マッケイ Solar air heating device
KR20210033085A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for adjusting position
KR20210033087A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for adjusting height
KR20210033084A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for controlling air flow
KR20210033086A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for adjusting position
CN114739019A (en) * 2022-04-19 2022-07-12 东北石油大学 Efficient flat plate collector based on rotary fins

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JP2006029732A (en) * 2004-07-21 2006-02-02 Takenaka Komuten Co Ltd Heat collection duct and ventilation system using heat collection duct
JP4618632B2 (en) * 2004-07-21 2011-01-26 株式会社竹中工務店 Heat collection duct and ventilation system using heat collection duct
EP1936095A3 (en) * 2006-12-18 2013-03-27 SCHÜCO International KG Window
JP2012002494A (en) * 2010-05-18 2012-01-05 Mitaka Koki Co Ltd Solar heat type air heating device
JP2014513262A (en) * 2011-04-08 2014-05-29 キャメロン・リチャード・マッケイ Solar air heating device
JP2013237978A (en) * 2012-05-11 2013-11-28 Panasonic Corp Roof structure
KR20210033085A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for adjusting position
KR20210033087A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for adjusting height
KR20210033084A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for controlling air flow
KR20210033086A (en) 2019-09-17 2021-03-26 연세대학교 원주산학협력단 Heating apparatus of air having fence for adjusting position
CN114739019A (en) * 2022-04-19 2022-07-12 东北石油大学 Efficient flat plate collector based on rotary fins
CN114739019B (en) * 2022-04-19 2023-06-23 东北石油大学 High-efficiency flat plate collector based on rotary fins

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