JP5057412B1 - Solar energy collection system with automatic solar tracker - Google Patents

Solar energy collection system with automatic solar tracker Download PDF

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JP5057412B1
JP5057412B1 JP2011253763A JP2011253763A JP5057412B1 JP 5057412 B1 JP5057412 B1 JP 5057412B1 JP 2011253763 A JP2011253763 A JP 2011253763A JP 2011253763 A JP2011253763 A JP 2011253763A JP 5057412 B1 JP5057412 B1 JP 5057412B1
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movable
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solar
heat
collecting pipe
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JP2013110252A (en
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悦也 品川
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悦也 品川
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00Arrangements for moving or orienting solar heat collector modules
    • F24S30/40Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/45Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
    • F24S30/452Vertical primary axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00Arrangements for controlling solar heat collectors
    • F24S50/20Arrangements for controlling solar heat collectors for tracking
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10Special components
    • F24S2030/11Driving means
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/10Photovoltaic [PV]
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • 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
    • Y02E10/47Mountings or tracking

Abstract

【課題】 部品点数が少なく、構造が簡素化され、安価に製造することが可能な自動太陽追尾装置付太陽エネルギー収集システムの提供。
【解決手段】 固定台座12と、固定台座12上に方向を変更可能に設置され、東から西へ移動する太陽光に追従可能な可動部14と、太陽光を集光する集光部16とを具備し、固定台座12と可動部14との間には第1及び第2の駆動手段18,20が設けられ、第1及び第2の駆動手段18,20は、形状記憶合金製の弾性部材が集熱パイプの内部に挿入され、弾性部材の一端が固定台座12側に、他端が可動部14側に連結されており、第1及び第2の駆動手段18,20は、固定台座12上に設置され、第1の駆動手段18は可動部14を固定台座12に対し東側へ回動するように偶力を作用させるとともに、第2の駆動手段20は可動部14を固定台座12に対し西側へ回動するように偶力を作用させる。
【選択図】 図1A
PROBLEM TO BE SOLVED: To provide a solar energy collecting system with an automatic solar tracking device that has a small number of parts, has a simplified structure, and can be manufactured at low cost.
SOLUTION: A fixed base 12, a movable part 14 which is installed on the fixed base 12 so as to be changeable in direction and can follow sunlight moving from east to west, and a light collecting part 16 for collecting sunlight. The first and second driving means 18 and 20 are provided between the fixed base 12 and the movable portion 14, and the first and second driving means 18 and 20 are elastic made of a shape memory alloy. A member is inserted into the heat collecting pipe, one end of the elastic member is connected to the fixed base 12 side, and the other end is connected to the movable part 14 side. The first and second driving means 18 and 20 are fixed bases. The first driving means 18 applies a couple of forces to rotate the movable portion 14 to the east side with respect to the fixed base 12, and the second driving means 20 causes the movable portion 14 to move to the fixed base 12. In contrast, a couple is applied to turn to the west.
[Selection] Figure 1A

Description

本発明は、自動太陽追尾装置付太陽エネルギー収集システムに係り、ソーラーパネルや太陽電池、温水用の集熱機器などに太陽光を集める場合に使用され、太陽の動きを自動的に追尾可能な機構を備えた集光装置用の架台に関する。   The present invention relates to a solar energy collecting system with an automatic solar tracking device, and is used when collecting sunlight in a solar panel, a solar battery, a heat collecting device for hot water, etc., and a mechanism capable of automatically tracking the movement of the sun. The present invention relates to a gantry for a condensing device.

一般に、太陽光を利用した発電装置や集熱装置は、屋根などに固定した状態で設置され、通常、その設置方向や設置角度は、北半球である日本の場合、方向は南向きを基本とし、角度については地域の気候、降雪の有無など地域特性に合わせて設置されている。
また、設置角度については、年間の最低発電量若しくは最高発電量を基準に決定するなど、いくつかの設置の仕方がある。
In general, solar power generators and heat collectors are installed in a fixed state on the roof, etc., and the installation direction and angle are usually based on the south direction in Japan, which is the northern hemisphere. The angle is set according to the regional characteristics such as the local climate and snowfall.
There are several installation methods, such as determining the installation angle based on the annual minimum power generation or maximum power generation.

一方、太陽光は東から西へと移動し、又、季節によって日射角度が異なることから、集光装置は可能であるならば、パネル面に対し太陽光が直角に射し込むようにすることが好ましい。方向についても、太陽は日の出から日の入りにかけて東から西へ移動するため、それに合わせて追随するように集光装置の方向を変えることができれば、集光効率の向上が望める。 On the other hand, sunlight moves from east to west, and since the angle of solar radiation varies depending on the season, it is preferable to allow sunlight to shine at right angles to the panel surface, if possible. . Regarding the direction, since the sun moves from east to west from sunrise to sunset, if the direction of the condensing device can be changed so as to follow it, an improvement in condensing efficiency can be expected.

従来、太陽光の日射角度の変化に対応すべく、特開2007−324387号公報(特許文献1)記載の太陽光自動追尾装置に関する発明が公知である。同公報記載の発明は、形状記憶合金製のバネ、このバネに連結された往復軸、ラッチ、歯車等を構成要素とし、太陽光によって加熱された形状記憶合金製のバネの収縮力を利用して、集光用ミラーの仰角を変化させるようになっている。これによれば、電力を消費することなく、太陽光に対し最適な角度となるよう集光用ミラーの仰角を可変し、集熱効率の向上に寄与するとされている。 2. Description of the Related Art Conventionally, an invention relating to an automatic solar tracking device described in Japanese Patent Application Laid-Open No. 2007-324387 (Patent Document 1) is known in order to cope with a change in the solar radiation angle. The invention described in the publication uses a spring made of a shape memory alloy, a reciprocating shaft connected to the spring, a latch, a gear, and the like as components, and utilizes the contraction force of the spring made of shape memory alloy heated by sunlight. Thus, the elevation angle of the condensing mirror is changed. According to this, it is said that the elevation angle of the condensing mirror is varied so as to be an optimum angle with respect to sunlight without consuming electric power, thereby contributing to improvement in heat collection efficiency.

また、特開平6−301420号公報(特許文献2)には、作動油が充填された受熱槽を具備し、太陽光の輻射熱によって膨張する作動油の圧力を利用して、ピストン、ロッドなどによりソーラーパネルを東から西へ傾動させるようになっている。当発明も電力を消費することなく、集光効率を向上させることを可能ならしめるとされている。 Japanese Patent Laid-Open No. 6-301420 (Patent Document 2) includes a heat receiving tank filled with hydraulic oil and uses the pressure of hydraulic oil that expands due to the radiant heat of sunlight, using a piston, a rod, and the like. The solar panel is tilted from east to west. The present invention also makes it possible to improve the light collection efficiency without consuming electric power.

特開2007−324387号公報JP 2007-324387 A 特開平6−301420号公報JP-A-6-301420

しかしながら、前述した特許文献1記載の太陽光自動追尾装置は、駆動機構として、ウォームギア、形状記憶合金バネ、ラッチなどを使用しており、構造の複雑化を招くとともに、部品点数の増大や保守管理に手間を要するという課題があった。
また、特許文献2の太陽光追尾装置は、作動油を貯留する受熱槽などを必要とし、装置全体の大型化を招く虞があるとともに、例えば冬季間などの気温が低い季節には作動油の粘度が高くなり、太陽光の追尾動作に支障を来す可能性がある。
However, the above-described automatic solar tracking device described in Patent Document 1 uses a worm gear, a shape memory alloy spring, a latch, and the like as a drive mechanism, which causes a complicated structure and increases the number of parts and maintenance management. There was a problem of requiring labor.
In addition, the solar light tracking device of Patent Document 2 requires a heat receiving tank for storing hydraulic oil, which may lead to an increase in the size of the entire device, and for example, during the season when the temperature is low, such as during the winter, There is a possibility that the viscosity becomes high and the tracking operation of sunlight may be hindered.

本発明はこのような事情に鑑みてなされたものであり、部品点数が少なく、且つ構造が簡素化されているとともに、安価に製造することが可能な自動太陽追尾装置付太陽エネルギー収集システムを提供することを目的とする。 The present invention has been made in view of such circumstances, and provides a solar energy collection system with an automatic solar tracking device that has a small number of parts, a simplified structure, and can be manufactured at low cost. The purpose is to do.

請求項1記載の発明は、固定台座(12)と、該固定台座(12)上に方向を変更可能に設置され、東から西へ移動する太陽光に追従可能な可動部(14)と、該可動部(14)に取り付けられ、太陽光を集光する集光部(16)とを具備する自動太陽追尾装置付太陽エネルギー収集システムであって、前記固定台座(12)と可動部(14)との間には第1及び第2の駆動手段(18,20)が設けられ、該第1及び第2の駆動手段(18,20)は、形状記憶合金製の弾性部材(17,19)が集熱パイプ(21,23)の内部に挿入され、該弾性部材(17,19)の一端(17A,19A)が前記固定台座(21A,23A)側に、他端(17A)が前記可動部(14)側に連結されており、該集熱パイプ(21,23)は透光性の素材を材料とする外筒(25)及び内筒(27)からなる二重構造であるとともに、該外筒(25)と内筒(27)との間に形成され且つ極めて真空に近い状態に維持された環状断面の空間を断熱層(29)とし、該内筒(27)には太陽熱に対する選択吸収層(31)が形成され、前記第1の駆動手段(18)は前記可動部(14)を前記固定台座(12)に対し東側へ回動するように偶力を作用させるとともに、第2の駆動手段(20)は該可動部(14)を該固定台座(12)に対し西側へ回動するように偶力を作用させることを特徴とする。 The invention according to claim 1 is a fixed pedestal (12), a movable part (14) that is installed on the fixed pedestal (12) so that the direction can be changed, and is capable of following sunlight moving from east to west. A solar energy collecting system with an automatic solar tracking device, which is attached to the movable part (14) and includes a light collecting part (16) for collecting sunlight, wherein the fixed base (12) and the movable part (14) ) Are provided with first and second drive means (18, 20), and the first and second drive means (18, 20) are elastic members (17, 19) made of shape memory alloy. ) Is inserted into the heat collecting pipe (21, 23), one end (17A, 19A) of the elastic member (17 , 19) is on the side of the fixed base (21A, 23A), and the other end (17A) is on the side. It is connected to the movable part (14) side, and the heat collecting pipes (21, 23) are translucent. It is a double structure consisting of an outer cylinder (25) and an inner cylinder (27) made of a material, and is formed between the outer cylinder (25) and the inner cylinder (27) and is in a state close to a vacuum. The space of the maintained annular cross section is used as a heat insulation layer (29), a selective absorption layer (31) for solar heat is formed in the inner cylinder (27), and the first driving means (18) is provided with the movable part (14). ) Is rotated to the east side with respect to the fixed base (12), and the second driving means (20) moves the movable part (14) to the west side with respect to the fixed base (12). A couple is applied so as to rotate.

請求項2記載の発明は、上記1項において、前記集光部(16)は、前記可動部(14)に対し傾斜角度が変更可能に取り付けられており、該集光部(16)と該可動部(14)との間に第3の駆動手段(22)を設置し、該第3の駆動手段(22)は形状記憶合金製の弾性部材(40)が集熱パイプ(42)の内部に挿入され、その一端が該集光部(16)側に、他端が該可動部側に連結され、該集熱パイプ(42)は透光性の素材を材料とする外筒(25)及び内筒(27)からなる二重構造であるとともに、該外筒(25)と内筒(27)との間に形成され且つ極めて真空に近い状態に維持された環状断面の空間を断熱層(29)とし、該内筒(27)には太陽熱に対する選択吸収層(31)が形成され、前記集光部(16)は前記弾性部材(40)の働きにより、太陽光の日射角度の変化に一定範囲で追従して傾動可能であることを特徴とする。 According to a second aspect of the present invention, in the first aspect, the condensing part (16) is attached to the movable part (14) such that an inclination angle can be changed, and the condensing part (16) and the concentrating part (16) A third driving means (22) is installed between the movable part (14), and the third driving means (22) has an elastic member (40) made of a shape memory alloy inside the heat collecting pipe (42). One end of which is connected to the light collecting part (16) side, the other end is connected to the movable part side, and the heat collecting pipe (42) is an outer cylinder (25) made of a translucent material. And a space having an annular cross section formed between the outer cylinder (25) and the inner cylinder (27) and maintained in an extremely vacuum state, with a double structure comprising the inner cylinder (27). (29), the inner cylinder (27) is provided with a selective absorption layer (31) for solar heat, and the light converging part (16) By the action of the member (40), characterized in that it is a tiltable to follow in a range with a change in insolation angle of the sunlight.

請求項3記載の発明は、上記1項又は2項において、前記第1及び第2の駆動手段(18,20)における集熱パイプ(21,23)は、その一部が前記固定台座(12)に対し、断熱材(15)を介在させた状態で埋め込まれるようにして設置されていることを特徴とする。 According to a third aspect of the present invention, in the first or second aspect, a part of the heat collecting pipe (21, 23) in the first and second driving means (18, 20) is the fixed base (12). ) Is embedded in a state in which a heat insulating material (15) is interposed .

請求項4記載の発明は、上記1項及び2項、又は3項において、前記第1〜第3の駆動手段(18,20,22)には、その集熱パイプ並びに弾性部材に照射される太陽光の日射を遮る遮光カバーを設け、太陽光の日射方向の変化によって該第1及び第2の駆動手段における集熱パイプ(21,23,42)に当たる日射量をコントロール、及び/又は太陽光の日射角度の変化によって該第3の駆動手段(22)における集熱パイプ(42)に当たる日射量をコントロールすることを特徴とする。 According to a fourth aspect of the present invention, in the first, second, or third aspect, the first to third driving means (18, 20, 22) are irradiated to the heat collecting pipe and the elastic member. A shading cover is provided to block sunlight from sunlight, and the amount of solar radiation hitting the heat collecting pipes (21, 23, 42) in the first and second driving means is controlled by changing the sunlight direction of sunlight, and / or sunlight The amount of solar radiation hitting the heat collecting pipe (42) in the third driving means (22) is controlled by the change in the solar radiation angle.

本発明によれば、集光部を太陽光に対し、集光効率の高い方位、傾斜角とすることが可能であり、太陽エネルギーを有効に利用することが可能になる。また、構成部品の数が少なくて済むとともに、太陽光に対して動力を必要とすることがないので、エネルギー資源の有効な利用に資する。 ADVANTAGE OF THE INVENTION According to this invention, it is possible to make a condensing part into the azimuth | direction and inclination angle with high condensing efficiency with respect to sunlight, and it becomes possible to utilize solar energy effectively. In addition, the number of components is small, and no power is required for sunlight, which contributes to effective use of energy resources.

本実施形態の自動太陽追尾装置付太陽エネルギー収集システムの全体斜視図である。It is a whole perspective view of the solar energy collection system with an automatic solar tracking device of this embodiment. 同じく、本実施形態の自動太陽追尾装置付太陽エネルギー収集システムにおける図1AのIB−IB線に沿った矢視断面図である。Similarly, it is arrow sectional drawing along the IB-IB line | wire of FIG. 1A in the solar energy collection system with an automatic solar tracking apparatus of this embodiment. 同じく、本実施形態の自動太陽追尾装置付太陽エネルギー収集システムにおける図1BのIC−IC線に沿った矢視断面図である。Similarly, it is arrow sectional drawing along the IC-IC line | wire of FIG. 1B in the solar energy collection system with an automatic solar tracking apparatus of this embodiment. 同じく、本実施形態の自動太陽追尾装置付太陽エネルギー収集システムの分解斜視図である。Similarly, it is a disassembled perspective view of the solar energy collection system with an automatic solar tracking device of this embodiment. 同じく、本実施形態の自動太陽追尾装置付太陽エネルギー収集システムについて、正面側並び背面側から視た立面図である。Similarly, it is the elevation seen from the front side and the back side about the solar energy collection system with an automatic solar tracking device of this embodiment. 同じく、本実施形態の自動太陽追尾装置付太陽エネルギー収集システムの要部である固定台座と可動部との関係を示す要部断面図である。Similarly, it is principal part sectional drawing which shows the relationship between the fixed base which is a principal part of the solar energy collection system with an automatic solar tracking apparatus of this embodiment, and a movable part. 同じく、本実施形態の自動太陽追尾装置付太陽エネルギー収集システムを側面側から視た図である。Similarly, it is the figure which looked at the solar energy collection system with an automatic solar tracking device of this embodiment from the side. 同じく、本実施形態の自動太陽追尾装置付太陽エネルギー収集システムについて集光部の方位並びに傾斜角度が変化した状態を示す斜視図である。Similarly, it is a perspective view which shows the state which the azimuth | direction and inclination angle of the condensing part changed about the solar energy collection system with an automatic solar tracking apparatus of this embodiment. 年間における太陽光の日射角の変化を示す説明図である。It is explanatory drawing which shows the change of the solar radiation angle in the year.

以下、本発明に係る自動太陽追尾装置付太陽エネルギー収集システムの好適な実施形態について、添付図面を参照して説明する。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a solar energy collecting system with an automatic solar tracking device according to the invention will be described with reference to the accompanying drawings.


図1Aは本実施形態の太陽エネルギー収集装置の全体斜視図、図1Bは図1AのIB−IB線に沿った矢視断面図、図1Cは図1BのIC−IC線に沿った矢視断面図、図2は分解斜視図、図3は正面側並び背面側から視た立面図である。
これらの図に示されるように、自動太陽追尾装置付太陽エネルギー収集システム10は、固定台座12、可動部14、集光部16、第1の駆動手段18、第2の駆動手段20、第3の駆動手段22等を備えて構成されている。固定台座12は、脚部12A,12B,12C,12Dが設けられ、任意の位置に台座12を固定することができるようになっている。

1A is an overall perspective view of the solar energy collecting apparatus of the present embodiment, FIG. 1B is a cross-sectional view taken along the line IB-IB in FIG. 1A, and FIG. 1C is a cross-sectional view taken along the line IC-IC in FIG. 2 is an exploded perspective view, and FIG. 3 is an elevation view seen from the front side and the back side.
As shown in these figures, the solar energy collecting system 10 with an automatic solar tracking device includes a fixed base 12, a movable part 14, a light collecting part 16, a first driving means 18, a second driving means 20, and a third. The drive means 22 etc. are comprised. The fixed base 12 is provided with leg portions 12A, 12B, 12C, and 12D, and can fix the base 12 at an arbitrary position.

図4は本実施形態の要部である固定台座12と可動部14との関係を示す要部断面図、図5は本実施形態の自動太陽追尾装置付太陽エネルギー収集システム10を側面側から視た図、図6は自動太陽追尾装置付太陽エネルギー収集システム10について集光部16の方位並びに傾斜角度が変化した状態を示す斜視図、図7は年間における太陽光の日射角の変化を示す説明図である。 FIG. 4 is a cross-sectional view of the main part showing the relationship between the fixed base 12 and the movable part 14 which are main parts of the present embodiment, and FIG. 5 is a side view of the solar energy collection system 10 with an automatic solar tracking device of the present embodiment. FIG. 6 is a perspective view showing a state in which the azimuth and the inclination angle of the light collecting unit 16 are changed in the solar energy collecting system 10 with an automatic solar tracking device, and FIG. 7 is an explanation showing the change in the solar radiation angle in the year. FIG.

図4に示されるように、固定台座12には可動部14が回転可能に設置されており、可動部14は固定台座12との間に軸受24が介在され、固定台座12に対し回転可能に配設されている。また、軸受24のほか、可動部14を固定台座12に対して中立位置に保持する弾性体として、ゼンマイバネ26が設けられている。ゼンマイバネ26は、その付勢力によって可動部14を固定台座12の中立位置、通常は真南側へ位置させるようになっている。 As shown in FIG. 4, a movable portion 14 is rotatably installed on the fixed pedestal 12, and a bearing 24 is interposed between the movable portion 14 and the fixed pedestal 12 so as to be rotatable with respect to the fixed pedestal 12. It is arranged. In addition to the bearing 24, a spring spring 26 is provided as an elastic body that holds the movable portion 14 in a neutral position with respect to the fixed base 12. The spring spring 26 is configured to position the movable portion 14 to the neutral position of the fixed base 12, usually to the south side, by its urging force.

第1の駆動手段18、第2の駆動手段20は、形状記憶合金製の弾性部材である弦巻バネ17,19と、ガラスなどの集熱パイプ21,23とから構成されている。
図1Bに示されるように、固定台座12の上面には、凹状部13A,13Bが設けられ、これらの凹状部13A,13Bに、第1の駆動手段18、第2の駆動手段20を構成する集熱パイプ21,23が断熱材15を介して埋め込まれるように設置されている。これによって、集熱パイプ21,23の断熱性を向上させ、集熱パイプ21,23から放出される熱を極力少なくするようにしている。
The first driving means 18 and the second driving means 20 are composed of string springs 17 and 19 which are elastic members made of shape memory alloy, and heat collecting pipes 21 and 23 such as glass.
As shown in FIG. 1B, concave portions 13A and 13B are provided on the upper surface of the fixed base 12, and the first driving means 18 and the second driving means 20 are formed in these concave portions 13A and 13B. The heat collecting pipes 21 and 23 are installed so as to be embedded through the heat insulating material 15. Thereby, the heat insulation of the heat collecting pipes 21 and 23 is improved, and the heat released from the heat collecting pipes 21 and 23 is reduced as much as possible.

弦巻バネ17,19は、両端のうち、一端17A,19Aが集熱パイプ21,23の東端部21A及び西端部23Aに、それぞれ取り付けられている。集熱パイプ21,23の東端21A及び西端側23Aは、樹脂などによって密栓されている。また、集熱パイプ21,23の中央端部21B,23Bは、同様に樹脂などによって密栓されているが、その中心部にバネが通る細径の通し孔が空けられている。この通し孔には、密閉性を損なわないように、弾力のあるゴム等で充填することが好ましい。
弦巻バネ17,19の他端17B,19Bは可動部14に突設された回動軸14Aに対し、常温の状態で、やや引っ張るように、より戻しを付けて、いわゆるサルカンなどの連結金具を介して連結されている。つまり、弦巻バネ17,19は、常温では伸びた状態となるが、熱が加わることにより、元のコイル状に戻って縮む性質を有し、連結金具によって伸縮時の捩れを吸収するようになっている。
Of the two ends of the string springs 17 and 19, one ends 17A and 19A are attached to the east end portion 21A and the west end portion 23A of the heat collecting pipes 21 and 23, respectively. The east end 21A and the west end 23A of the heat collecting pipes 21 and 23 are sealed with resin or the like. The central ends 21B and 23B of the heat collecting pipes 21 and 23 are similarly sealed with a resin or the like, and a small-diameter through hole through which a spring passes is formed at the center. The through hole is preferably filled with elastic rubber or the like so as not to impair hermeticity.
The other ends 17B and 19B of the string springs 17 and 19 are connected back to the rotating shaft 14A protruding from the movable portion 14 so as to be pulled slightly at room temperature, so that a connecting fitting such as a so-called sarkan is attached. Are connected through. That is, the string springs 17 and 19 are in an extended state at normal temperature, but have the property of returning to the original coil shape and contracting when heat is applied, and the connecting metal fittings absorb the twist during expansion and contraction. ing.

図1Cに示されるように、集熱パイプ21,23は、耐熱ガラスなどの透光性を備えた二重構造のガラス瓶(デュワー瓶に類するもの)等であり、外筒25、内筒27との間は極めて真空に近い状態に維持された断熱層29となっている。内筒27の内部側には太陽熱の特定の波長に対し選択的に吸収する選択吸収層31が形成されている。本実施形態における選択吸収層31は太陽光のうち、赤外線を特に吸収可能な性質を有し、これによって、集熱パイプ21,23に太陽光が照射された場合には、パイプ内の温度は、その断熱性ゆえに高温となり、内部の形状記憶合金製の弦巻バネ17,19はパイプ内にて熱が加えられることにより、元の形状であるコイル状に戻り、縮む方向へ弾性付勢力が生じる。 As shown in FIG. 1C, the heat collecting pipes 21 and 23 are double-structured glass bottles (similar to Dewar bottles) having translucency such as heat-resistant glass, and the like. In the meantime, the heat insulating layer 29 is maintained in a state close to a vacuum. A selective absorption layer 31 that selectively absorbs a specific solar heat wavelength is formed on the inner side of the inner cylinder 27. The selective absorption layer 31 in the present embodiment has a property capable of particularly absorbing infrared rays in sunlight, so that when the heat collecting pipes 21 and 23 are irradiated with sunlight, the temperature in the pipe is Because of its heat insulation property, the string-wound springs 17 and 19 made of shape memory alloy return to their original coil shape when heat is applied in the pipe, and an elastic biasing force is generated in the contracting direction. .

そうすると、図4(c)に示されるように、第1の駆動手段18側では、回動軸14Aを介し可動部14に対して東側へ回動させる偶力が生じ、ゼンマイバネ26の付勢力に抗する形で、支柱28とともに集光部16を東側へ方向を変化させる。一方、第2の駆動手段20側では、図4(b)に示されるように、集熱パイプ23内が高温になると、同様の作用により、可動部14に対して西側へ回動させる偶力が生じ、支柱28とともに集光部16を西側へ方向を変化させる。 Then, as shown in FIG. 4C, a couple force is generated on the first drive means 18 side to rotate the movable portion 14 to the east side via the rotation shaft 14A, and the biasing force of the mainspring spring 26 is generated. The direction of the condensing part 16 is changed to the east side with the support | pillar 28 in the form which resists. On the other hand, on the second drive means 20 side, as shown in FIG. 4B, when the inside of the heat collecting pipe 23 reaches a high temperature, a couple that rotates to the west side with respect to the movable portion 14 by the same action. And the direction of the condensing unit 16 is changed to the west side together with the support column 28.

また、図1Aに示されるように、固定台座12における第1の駆動手段18、第2の駆動手段20には、第1及び第2の遮光部材としての遮光カバー32,34が、集熱パイプ21,23の上側を覆うようにして取り付けられている。
図1Bに示されるように、東側の集熱パイプ21の上方に設置された遮光カバー32は、東端部21A側からの光の入射量を多くするため、その部分が切り欠かれているとともに、中央端部23B側に行くにしたがって集熱パイプ21をカバーする部分が大きくなり、太陽高度が高くなって南側に移動した場合に、光の入射量を少なくする形状に形成されている。
Further, as shown in FIG. 1A, the first driving means 18 and the second driving means 20 in the fixed base 12 are provided with light shielding covers 32 and 34 as first and second light shielding members, respectively. 21 and 23 are attached so as to cover the upper side.
As shown in FIG. 1B, the light shielding cover 32 installed above the heat collecting pipe 21 on the east side is cut out in order to increase the amount of incident light from the east end 21A side, The portion that covers the heat collecting pipe 21 increases toward the center end 23B side, and is formed in a shape that reduces the amount of incident light when the solar altitude increases and moves to the south side.

即ち、遮光カバー32は、日の出とともに東側から射し込む太陽光を集熱パイプ21内へ導くとともに、午前10時頃からは逆に太陽光が集熱パイプ21へ射し込むのを防ぐようになっている。これによって、図4(c)に示されるように、日の出から午前10時ぐらいまでの斜光の状態では、集熱パイプ21内の温度が上昇することによって形状記憶合金製の弦巻バネ17が縮み、その弾性力によって可動部14を東側へ回動させ、支柱28とともに集光部16を東側へ方向を変化させる。 That is, the light-shielding cover 32 guides sunlight entering from the east side into the heat collecting pipe 21 at sunrise, and prevents sunlight from entering the heat collecting pipe 21 from about 10 am. As a result, as shown in FIG. 4 (c), in the state of oblique light from sunrise to about 10 am, the temperature in the heat collecting pipe 21 rises, so that the string spring 17 made of shape memory alloy contracts, The movable part 14 is rotated to the east side by the elastic force, and the direction of the condensing part 16 is changed to the east side together with the column 28.

これによって、モータなどの動力を使用することなく集光部16の方向を太陽の日射方向へ向けることが可能となる。そして、午前10時を過ぎたころからは、太陽光の角度が増すとともに南側に移動するので、集熱パイプ21に差し込む日射量は遮光カバー32によって遮られることから減少し、徐々に温度が低下して常温に戻る。この結果、図4(a)に示されるように、弦巻バネ17は伸び、ゼンマイバネ26に弾性力とも相まって、可動部14は南側へ少しずつ回動して中立位置に向いていく。集光部16が南側に向いた状態は、西側における第2の駆動手段20による張力が作用するまで続くことになる。 This makes it possible to direct the light collecting unit 16 in the solar radiation direction without using power such as a motor. And since about 10 am, the angle of sunlight increases and moves to the south side, so the amount of solar radiation inserted into the heat collecting pipe 21 is blocked by the light shielding cover 32 and gradually decreases in temperature. And return to room temperature. As a result, as shown in FIG. 4A, the string-wound spring 17 is extended, coupled with the elastic force of the mainspring spring 26, the movable portion 14 is gradually rotated toward the south side toward the neutral position. The state where the condensing part 16 is directed to the south side continues until the tension by the second driving means 20 on the west side is applied.

一方、西側に設置されている遮光カバー34は、図1Bに示されるように、遮光カバー32とは逆に、西端部23A側からの光の入射量を多くするため、その部分が切り欠かれているとともに、中央端部21B側に行くにしたがって集熱パイプ23をカバーする部分が大きく形成され、太陽高度が高くなるにつれて光の入射量を少なくするようになっている。つまり、遮光カバー34の形状により、午後13時頃から太陽光が当たりはじめ、太陽光の方向が西に振れるにしたがい、第1の駆動手段20の集熱パイプ23に当たる日射量は多くなっていく。これによって、図4(b)に示されるように、集熱パイプ23内部が高温となって配設されている弦巻バネ19が縮み、可動部14を西側へ回動させて集光部16を西側へ方向を変化させる。   On the other hand, as shown in FIG. 1B, the light shielding cover 34 installed on the west side is cut away in order to increase the amount of incident light from the west end 23A side, contrary to the light shielding cover 32. At the same time, the portion that covers the heat collecting pipe 23 is formed larger toward the center end 21B side, and the amount of incident light is reduced as the solar altitude increases. That is, depending on the shape of the light-shielding cover 34, sunlight hits around 13:00 pm, and the amount of solar radiation hitting the heat collecting pipe 23 of the first drive means 20 increases as the direction of sunlight sways westward. . As a result, as shown in FIG. 4B, the string spring 19 disposed inside the heat collecting pipe 23 at a high temperature is contracted, and the movable portion 14 is rotated to the west side, so that the light collecting portion 16 is moved. Change direction to the west.

太陽の方位角については、東京地区では、夏至のときに午前10時で110°、午後13時半頃には240°と変化するため、可動部14を午前10時では、真南側を基準とした場合に、東側へ20°程度、午後13時半頃では西側へ30°程度向けておくと、太陽エネルギーを取得する上で有効である。
一方、冬至のときは、太陽の日射角度が30°と低いために、可動部14を南側に固定した状態でもエネルギーの取得効率にはあまり影響はないと思われる。
このような状況を考慮した上で、遮光カバー32,34の形状を設定したものである。
In the Tokyo area, the azimuth angle of the sun changes 110 degrees at 10 am during the summer solstice and 240 degrees around 13:30 pm. In such a case, it is effective to acquire solar energy if it is directed to about 20 ° to the east and about 30 ° to the west at about 13:30 pm.
On the other hand, during the winter solstice, the solar radiation angle is as low as 30 °, so it seems that there is not much influence on the energy acquisition efficiency even when the movable part 14 is fixed on the south side.
In consideration of such a situation, the shapes of the light shielding covers 32 and 34 are set.

具体例として、東側の遮光カバー32では、東側の先端部分を集熱パイプ21から南東方向40°の延長線上にセットし、遮光カバー32の高さを東京の最高高度である78°で集熱パイプ21が遮光カバー32の影に入るようにし、且つ長さを中央端部21Bとほぼ同じとする。なお、冬季間の朝の日射を考慮して、遮光カバー32の下部には切欠き部が設けられている。また、夏季の西日が後方(北側)から当たらないように、遮光カバー32の西北側に壁を取り付けるのが好ましい。   As a specific example, in the light shielding cover 32 on the east side, the tip portion on the east side is set on an extended line of 40 ° in the southeast direction from the heat collecting pipe 21, and the height of the light shielding cover 32 is collected at 78 °, the highest altitude in Tokyo. The pipe 21 enters the shadow of the light shielding cover 32, and the length is substantially the same as the central end portion 21B. In consideration of morning sunlight during the winter, a notch is provided in the lower part of the light shielding cover 32. Moreover, it is preferable to attach a wall to the northwest side of the light shielding cover 32 so that the summer sun does not hit from the back (north side).

一方、西側の遮光カバー34では、太陽の方位角が真南から西側30°の時から弦巻バネ19による張力が発生するようにする。この場合は、遮光カバー34の西端部23Aを、集熱パイプ23に対し、南西30°の延長線上となるように形成し、太陽光が集熱パイプ23に当たらないようにする。さらに、朝日が後方から入り込まないように、遮光カバー34の北東側に壁を形成するのが好ましい。これによって、集熱パイプ23には、日の出から方位角が真南から30°西に移行するまで、日射が入らないようになり、集熱部16の不用意な回動を防止することができる。   On the other hand, in the light shielding cover 34 on the west side, the tension by the string winding spring 19 is generated from the time when the azimuth angle of the sun is 30 ° from the true south to the west side. In this case, the west end portion 23 </ b> A of the light shielding cover 34 is formed so as to be on the 30 ° southwest extension line with respect to the heat collection pipe 23 so that sunlight does not hit the heat collection pipe 23. Furthermore, it is preferable to form a wall on the northeast side of the light shielding cover 34 so that the morning sun does not enter from behind. As a result, solar radiation is prevented from entering the heat collecting pipe 23 until the azimuth angle changes from true south to 30 ° west from sunrise, thereby preventing inadvertent rotation of the heat collecting section 16. .

次に、集光部16の角度を変化させる第3の駆動手段22について説明する。
図1〜図3に示されるように、可動部14の上面には支柱28が立設されており、この支柱28の上端部に支持アーム30が取り付けられている。支持アーム30には、反射鏡などを内部側に備えた集光部16が設置され、本実施形態では中央部にパイプ状の太陽熱温水器34が取り付けられている。或いは、太陽熱温水器34に代替して太陽光発電パネルを集光部16の全面に設置することも可能である。
Next, the 3rd drive means 22 which changes the angle of the condensing part 16 is demonstrated.
As shown in FIGS. 1 to 3, a support column 28 is erected on the upper surface of the movable portion 14, and a support arm 30 is attached to the upper end portion of the support column 28. The support arm 30 is provided with a condensing unit 16 provided with a reflecting mirror or the like on the inner side, and in this embodiment, a pipe-shaped solar water heater 34 is attached to the center. Alternatively, it is also possible to install a solar power generation panel on the entire surface of the light collecting unit 16 in place of the solar water heater 34.

図5及び図6に示されるように、集光部16は支持アーム30によって、その両端部が軸16A,16Bによって軸支されている。集光部16自体は、上部側16Cが下部側16Dよりも若干重くなるように、重量配分がなされている。集光部16の下端には、連結片16Eが延設されているとともに、支柱28には連結軸28Aが設けられ、連結片16Eと連結軸28Aとの間には、第3の駆動手段22が配設されている。 As shown in FIG. 5 and FIG. 6, the condensing unit 16 is supported by the support arm 30 and both ends thereof are supported by shafts 16 </ b> A and 16 </ b> B. The light collector 16 itself is distributed in weight so that the upper side 16C is slightly heavier than the lower side 16D. A connecting piece 16E extends from the lower end of the light collecting section 16, and a connecting shaft 28A is provided on the support column 28. Between the connecting piece 16E and the connecting shaft 28A, the third driving means 22 is provided. Is arranged.

第3の駆動手段22は、前述した第1及び第2の駆動手段と同様に、形状記憶合金製の弾性部材である弦巻バネ40と、耐熱ガラスなどの集熱パイプ(デュワー瓶に類するもの)42とを具備して構成されている。第3の駆動手段22の前側には、遮光カバー44が設けられ、集熱パイプ42の上部を覆っている。連結片16Eと連結軸28Aとの間には、弦巻バネ40によって連結されている。集熱パイプ42の後部側(北側)には断熱材が貼られており、パイプ42からの熱の放出を防止するようになっている。 Similar to the first and second driving means described above, the third driving means 22 is a string spring 40, which is an elastic member made of a shape memory alloy, and a heat collecting pipe such as heat-resistant glass (similar to a Dewar bottle). 42. A light shielding cover 44 is provided on the front side of the third driving means 22 and covers the upper part of the heat collecting pipe 42. The connecting piece 16E and the connecting shaft 28A are connected by a string spring 40. A heat insulating material is attached to the rear side (north side) of the heat collecting pipe 42 so as to prevent heat from being released from the pipe 42.

集光部16の傾き角度は、図5(a)に示されるようにθ1=50°から、図5(b)、図6(b)に示されるようにθ2=20°の範囲に設定されており、支柱28には、傾き量を制限するストッパ46A,46Bが取り付けられている。なお、傾き量は、ストッパ46A,46Bの支柱28に対する位置を変更することにより、その傾動範囲を調整することが可能である。遮光カバー44は、日の出から数時間、日の入りの数時間前までの間に、太陽光を集熱パイプ42に導くように、その形状が形成されている。 The inclination angle of the condenser 16 is set in a range from θ1 = 50 ° as shown in FIG. 5A to θ2 = 20 ° as shown in FIGS. 5B and 6B. In addition, stoppers 46A and 46B for limiting the amount of inclination are attached to the support column 28. Note that the tilt range can be adjusted by changing the positions of the stoppers 46A and 46B with respect to the support column 28. The shape of the light shielding cover 44 is formed so as to guide sunlight to the heat collecting pipe 42 during several hours after sunrise and several hours before sunset.

具体的には、遮光カバー44は、集熱パイプ42の上半分を覆う形状を備えている。これによって、太陽高度の高い春から秋、午前10時以降〜午後15時ぐらいまでは、弦巻バネ40による弾性力は作用しないために、集光部16の自重により、図5(b)に示される状態が維持される。一方、冬季間や朝夕は、太陽光によって集熱パイプ42が暖められることから、弦巻バネ40は元の形状へ縮むように作用し、図5(a)に示されるように、傾動し、太陽光を効率よく集光できるようになる。 Specifically, the light shielding cover 44 has a shape that covers the upper half of the heat collecting pipe 42. As a result, since the elastic force of the string spring 40 does not act from spring to autumn, from about 10 am to about 15:00 pm, from spring to autumn when the solar altitude is high, it is shown in FIG. Maintained. On the other hand, during the winter and morning and evening, since the heat collecting pipe 42 is warmed by sunlight, the string-wound spring 40 acts so as to contract to the original shape, and as shown in FIG. Can be collected efficiently.

図7に示されるように、東京地区(東経134.4°,北緯35.4度)を例にとると、夏至のときに太陽の日射角度は約78°であるのに対し、冬至では31.2°と変化する。このため、集光部16の角度については、季節ごとに変化させることが、集光効率向上のために有効となる。
つまり、太陽高度が高い春から秋にかけては、日射角度があることから、集光部16の角度は、図5(b)、図6(b)に示されるように、水平に近い状態とすることが集光効率を高める上で好ましい。
As shown in FIG. 7, taking the Tokyo area (134.4 ° east longitude, 35.4 ° north latitude) as an example, the solar sunshine angle is about 78 ° during the summer solstice, while 31 for the winter solstice. .Changes to 2 °. For this reason, changing the angle of the light collecting unit 16 for each season is effective for improving the light collecting efficiency.
That is, since there is a solar radiation angle from spring to autumn when the solar altitude is high, the angle of the light converging unit 16 is set to be almost horizontal as shown in FIGS. 5 (b) and 6 (b). It is preferable to increase the light collection efficiency.

一方、冬季間は、日射角度が減少して斜光線の状態となるため、集光部16の角度は図5(a) 、図6(b)に示されるように、斜めに傾けるのが良い。また、日の出、日の入りにかけても日射角度が小さくなる斜光線の状態となるので同様である。
このような日射角度の変化に対応すべく、第3の駆動手段22によって集光部16の角度を変化させるようにしている。
On the other hand, during the winter season, the solar radiation angle is reduced to a state of oblique rays, so that the angle of the light collecting portion 16 should be inclined obliquely as shown in FIGS. 5 (a) and 6 (b). . The same is true because the solar radiation angle becomes a state of oblique rays that decreases at sunrise and sunset.
In order to cope with such a change in the solar radiation angle, the angle of the light collecting section 16 is changed by the third driving means 22.

なお、遮光カバー32,34,44について、本実施形態では切欠き部分を予め設けることによって集熱パイプに当たる日射量をコントロールしているが、これに限らず、切欠きの大きさ、範囲を変えることが可能な可動タイプとすることも可能である。これによれば、実際の使用状況や使用地域に応じて、集光部の方位角の動きを変更することができる。
また、集熱パイプ21,23,44は、本実施形態では耐熱ガラス製の二重構造のものを使用しているが、これに限らず、断熱性を備え、太陽光によって内部の温度が上昇可能なパイプ状のものであれば、金属製など他の材質のものを使用することも可能である。
In addition, about the light shielding covers 32, 34, and 44, in this embodiment, the amount of solar radiation hitting the heat collecting pipe is controlled by providing a notch portion in advance, but this is not limiting, and the size and range of the notch are changed. It is also possible to use a movable type. According to this, the movement of the azimuth angle of the light collecting unit can be changed according to the actual use situation or use region.
Moreover, although the heat collection pipes 21, 23, and 44 use a double structure made of heat-resistant glass in this embodiment, the heat collection pipes are not limited to this, have heat insulation properties, and the internal temperature rises due to sunlight. It is possible to use other materials such as a metal as long as it is a pipe-like material.

本実施形態によれば、電力などを使用することなく、集光部を太陽光に対し、集光効率の高い方位角度、傾斜角度に向けることが可能であり、太陽エネルギーを有効に利用することが可能になる。また、構造が簡素化されているので、コスト的にも安価であり、且つ耐久性に富むという長所を有する。 According to the present embodiment, it is possible to direct the condensing unit to the azimuth angle and the inclination angle with high condensing efficiency with respect to sunlight without using electric power, and to effectively use solar energy. Is possible. In addition, since the structure is simplified, it is advantageous in that it is inexpensive in terms of cost and rich in durability.

以上説明したように、本発明によれば、構成部品の数が少なくて済む一方で、動力を要することなく、太陽光に対して最適な方向、角度に集光部を向けることが可能である。このため、集光効率の大幅な向上に寄与する。 As described above, according to the present invention, the number of components can be reduced, but it is possible to direct the light converging unit in an optimum direction and angle with respect to sunlight without requiring power. . This contributes to a significant improvement in light collection efficiency.

10 自動太陽追尾装置付太陽エネルギー収集システム
12A 12B 12C 12D 脚部
14 可動部
14A 回動軸
15 断熱材
16A 16B 軸
16C 上部側
16D 下部側
16E 連結片
17 形状記憶合金製弦巻バネ
17A 一端
17B 他端
18 第1の駆動手段
19 形状記憶合金製弦巻バネ
19A 一端
19B 他端
20 第2の駆動手段
21 23 集熱パイプ
21A 東端部
21B 中央端部
22 第3の駆動手段
23A 西端部
23B 中央端部
24 軸受
25 外筒
26 ゼンマイバネ
27 内筒
28 支柱
28A 連結軸
30 支持アーム
31 選択吸収層
32 34 遮光カバー
40 形状記憶合金製弦巻バネ
42 集熱パイプ
44 遮光カバー
46A 46B ストッパ
10 Solar energy collection system with automatic solar tracking device 12A 12B 12C 12D Leg 14 Movable part 14A Rotating shaft
15 heat insulating material 16A 16B shaft 16C upper side 16D lower side 16E connecting piece 17 shape memory alloy string winding spring 17A one end 17B other end 18 first drive means 19 shape memory alloy string winding spring 19A one end 19B other end 20 second drive Means 21 23 Heat collecting pipe 21A East end 21B Central end 22 Third drive means 23A West end 23B Central end 24 Bearing 25 Outer cylinder 26 Spring spring 27 Inner cylinder 28 Strut 28A Connecting shaft 30 Support arm 31 Selective absorption layer 32 34 Light shielding cover 40 Shape memory alloy string spring 42 Heat collecting pipe 44 Light shielding cover 46A 46B Stopper

Claims (4)

固定台座と、該固定台座上に方向を変更可能に設置され、東から西へ移動する太陽光に追従可能な可動部と、該可動部に取り付けられ、太陽光を集光する集光部とを具備する自動太陽追尾装置付太陽エネルギー収集システムであって、
前記固定台座と可動部との間には第1及び第2の駆動手段が設けられ、該第1及び第2の駆動手段は、形状記憶合金製の弾性部材が集熱パイプの内部に挿入され、該弾性部材の一端が前記固定台座側に、他端が前記可動部側に連結されており、
該集熱パイプは透光性の素材を材料とする外筒及び内筒からなる二重構造であるとともに、該外筒と内筒との間に形成され且つ極めて真空に近い状態に維持された環状断面の空間を断熱層とし、該内筒には太陽熱に対する選択吸収層が形成され、
前記第1の駆動手段は前記可動部を前記固定台座に対し東側へ回動するように偶力を作用させるとともに、第2の駆動手段は該可動部を該固定台座に対し西側へ回動するように偶力を作用させることを特徴とする自動太陽追尾装置付太陽エネルギー収集システム。
A fixed pedestal, a movable part installed on the fixed pedestal so that the direction can be changed, and capable of following sunlight moving from east to west; and a light collecting part attached to the movable part for collecting sunlight. A solar energy collection system with an automatic solar tracking device comprising:
First and second driving means are provided between the fixed base and the movable portion, and the first and second driving means are formed by inserting an elastic member made of a shape memory alloy into the heat collecting pipe. , One end of the elastic member is connected to the fixed pedestal side, and the other end is connected to the movable part side,
The heat collecting pipe has a double structure consisting of an outer cylinder and an inner cylinder made of a light-transmitting material, and is formed between the outer cylinder and the inner cylinder and maintained in a very close vacuum state. A space having a circular cross section is used as a heat insulating layer, and a selective absorption layer for solar heat is formed on the inner cylinder,
The first driving means applies a couple of forces so that the movable portion rotates eastward with respect to the fixed base, and the second driving means rotates the movable portion toward the west with respect to the fixed base. A solar energy collecting system with an automatic solar tracking device, characterized in that a couple acts.
前記集光部は、前記可動部に対し傾斜角度が変更可能に取り付けられており、該集光部と該可動部との間に第3の駆動手段を設置し、該第3の駆動手段は形状記憶合金製の弾性部材が集熱パイプの内部に挿入され、その一端が該集光部側に、他端が該可動部側に連結され、該集熱パイプは透光性の素材を材料とする外筒及び内筒からなる二重構造であるとともに、該外筒と内筒との間に形成され且つ極めて真空に近い状態に維持された環状断面の空間を断熱層とし、該内筒には太陽熱に対する選択吸収層が形成され、
前記集光部は前記弾性部材の働きにより、太陽光の日射角度の変化に一定範囲で追従して傾動可能であることを特徴とする請求項1に記載の自動太陽追尾装置付太陽エネルギー収集システム。
The condensing part is attached to the movable part so that an inclination angle can be changed, and a third driving means is installed between the condensing part and the movable part, and the third driving means is An elastic member made of shape memory alloy is inserted into the heat collecting pipe, one end of which is connected to the light collecting part side and the other end is connected to the movable part side, and the heat collecting pipe is made of a translucent material. A space having an annular cross section formed between the outer cylinder and the inner cylinder and maintained in a state close to a vacuum is used as a heat insulating layer, and the inner cylinder Has a selective absorption layer for solar heat,
2. The solar energy collecting system with an automatic solar tracking device according to claim 1, wherein the condensing unit is capable of tilting following a change in the solar radiation angle within a certain range by the action of the elastic member. .
前記第1及び第2の駆動手段における集熱パイプは、その一部が前記固定台座に対し、断熱材を介在させた状態で埋め込まれるようにして設置されていることを特徴とする請求項1又は2に記載の自動太陽追尾装置付太陽エネルギー収集システム。 2. The heat collecting pipe in the first and second driving means is installed so that a part of the heat collecting pipe is embedded in the fixed base with a heat insulating material interposed therebetween. Or the solar energy collection system with an automatic solar tracking apparatus of 2 or 2 . 前記第1〜第3の駆動手段には、その集熱パイプ並びに弾性部材に照射される太陽光の日射を遮る遮光カバーを設け、太陽光の日射方向の変化によって該第1及び第2の駆動手段における集熱パイプに当たる日射量をコントロール、及び/又は太陽光の日射角度の変化によって該第3の駆動手段における集熱パイプに当たる日射量をコントロールすることを特徴とする請求項1及び2、又は請求項3に記載の自動太陽追尾装置付太陽エネルギー収集システム。 The first to third driving means are provided with a light-shielding cover for blocking sunlight irradiating the heat collecting pipe and the elastic member, and the first and second driving are performed by changing the sunlight irradiating direction. claims 1 and 2, characterized in that to control the amount of solar radiation impinging on the heat collecting pipe of the drive means of the third by a change in solar radiation angle of the current control solar radiation impinging on the heat pipes and / or sunlight, in section, or The solar energy collection system with an automatic solar tracking device according to claim 3 .
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