JP2012241709A - Crossflow type vertical shaft wind turbine - Google Patents

Crossflow type vertical shaft wind turbine Download PDF

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JP2012241709A
JP2012241709A JP2011130668A JP2011130668A JP2012241709A JP 2012241709 A JP2012241709 A JP 2012241709A JP 2011130668 A JP2011130668 A JP 2011130668A JP 2011130668 A JP2011130668 A JP 2011130668A JP 2012241709 A JP2012241709 A JP 2012241709A
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wind
guide plate
air guide
blades
crossflow
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Hideoki Sunouchi
英興 洲之内
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KUMA JUKI SERVICE KK
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KUMA JUKI SERVICE KK
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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Abstract

PROBLEM TO BE SOLVED: To provide a crossflow type vertical shaft wind turbine having a wind guide port opened in all directions so that wind collides with blades 7 disposed on at least two positions for making effective use of the blown wind to increase the rotating efficiency of a rotating shaft 6.SOLUTION: The blades 7 and wind guide plates 3 are rectangular plates having curved faces. A crossflow turbine part 1 has the blades 7 annularly disposed around the rotating shaft 6 with the recessed side surfaces of the curved faces in the same peripheral direction. Outside the crossflow turbine part 1, the wind guide plates 3 are annularly disposed via a clearance 2 with the recessed side surfaces of the curved faces in the same peripheral direction. The recessed side surfaces of the curved faces of the wind guide plates 3 and the blades 7 are disposed in mutually opposite directions.

Description

本発明は、風をクロスフロー・タービン部の２箇所の羽根に作用させクロスフロー・タービン部の回転軸の回転効率を高めたクロスフロー型垂直軸風車に関する。  The present invention relates to a crossflow type vertical axis wind turbine in which wind is applied to two blades of a crossflow turbine section to increase the rotational efficiency of a rotary shaft of the crossflow turbine section.

垂直軸風車は回転軸が地面に対して垂直となるタイプの風車をいい、設置やメンテナンス等の扱いが容易で、どの方向からの風も利用可能であり季節や時間帯で風向きが変動する日本の風況に適した風力発電の風車であるといえる。
この種の垂直軸風車に関し、回転軸から放射状に延びるアームの先端に対称翼型ブレードを対称翼型ブレードの横断面の対称軸がアームと９０度の角度を有して取り付けられ、翼型ブレードの外側に回転軸の軸心を通る直線に対して傾斜して任意の横断面形状を有する整流板を配設した整流式風車や、整流板を断面弧形にしたものや、整流板を回転軸方向、つまり半径内方向に沿って配設したものが提案されている（例えば、特許文献１、２、３、４、５又は６参照）。
羽根が翼型ブレードの場合、ブレードの肉厚部分から肉薄部分へ気流が流れるとブレードの対向側面側の圧力差により垂直方向へ揚力が生じブレードの肉厚部分が先頭となってブレードを周回するように回転軸が回転する。ところが、特許文献１、２、３、４又は６に開示の発明は整流板がブレードの肉厚部分正面側から肉薄部分方向へ風が流れるように傾斜して設けられ、特許文献５に開示の発明は回転軸の軸心方向、換言すれば半径内方向に沿って配設されているため、風が吹いて来る方向に位置するガイドベーンのみから風をブレードに送り込むことができる。しかしながら、同時に全てのブレードに回転方向である肉厚部分正面側に風を送り込むことはできないという欠点がある。
特許文献１の［０００４］の段に整流板を弧形にする旨の記載があるが、彎曲面のうち凹状側面の向きが特定していない。図面の［図７］の矢印が翼型ブレードが運動する方向であると記載されていること、及び［図４］で整流板が半径内方向に沿って設けられていることより、特許文献１の発明者は翼型ブレードの形状を断面弧形にした場合の凹状側面の向きに関しては考慮していないといえる。仮に、傾斜した整流板が凹状側面が外側を、凸状側面が内側を向くように配設された場合は、風が翼型ブレードの肉薄部分方向に流れ、高速回転に寄与しないという問題点がある。
特許文献６には、回転翼の外側に傾斜角αに傾斜した整流板を設け、回転翼に渦状気流を与えて大出力を得ようとした垂直軸風車が開示されている。
特許文献６に開示の垂直軸風車であると、案内羽根や補助案内羽根の基部間に無単別路を懸回したり、スプリングを取り付けたりしているため構造が煩雑で、又、案内羽根が横断面が平坦な矩形状板よりなるので風をクロスフロー・タービン部を構成する羽根の凹状側面に的確に作用させることが困難であるという問題点があった。
横断面が彎曲した矩形状片よりなる羽根を同一彎曲形状側が周方向に沿って同一方向に向いて配設され、羽根の外側に案内羽根と補助案内羽根を同一方向に傾斜させて交互に配設し、補助案内羽根の基部には歯車を設け、該歯車間は無端チェーンで懸回し、補助案内羽根が連動するようにしたり、補助案内羽根の基部にスプリングを取り付けて台風等の強風の際の風車の過回転を防止するようにした風車が提案されている（例えば、特許文献７参照）。特許文献７に開示の風車であると、案内羽根は平坦板よりなるため一方向から吹く風を全ての羽根の彎曲凹状側面に作用させることはできず、又、部品点数が多く高コスト化し非経済的であるという問題点があった。
又、特許文献１〜７に開示の風車は案内板数が少なく、案内板で整流化した風と、整流化されなかった風とが乱気流となって回転軸の回転を妨げるという欠点があった。
羽根の外側にガイドレールに沿って周方向に移動可能なカバーを設け、該カバーの移動で吹き込む風を各羽根の凹状彎曲面で受けるようにしたものが提案されている（例えば、特許文献８参照）。特許文献８に開示の発明であると、風向き情報によりカバーを適切な位置に移動させる必要性があり、カバー移動用モーター等を必要とし、構造が煩雑になるという問題点があった。
特開２００６−２２７９８号公報 特開２００３−１２０５０１号公報 特開２０１０−１８５３８９号公報 特開２００４−１２４９２１号公報 特開２０１０−１９６６００号公報 ＷＯ２００３−０９８０３５号公報 特開２０００−１６１１９６号公報 特開２００５−２０１２３２号公報 A vertical axis windmill is a type of windmill whose axis of rotation is perpendicular to the ground. It is easy to install and maintain, and can be used from any direction, and the wind direction varies depending on the season and time zone. It can be said that it is a wind turbine that is suitable for wind conditions.
With respect to this type of vertical axis wind turbine, a symmetrical airfoil blade is attached to the tip of an arm extending radially from the rotational axis, and the symmetrical axis of the cross section of the symmetrical airfoil blade is attached to the arm at an angle of 90 degrees. A rectifying wind turbine in which a rectifying plate having an arbitrary cross-sectional shape is arranged with an inclination with respect to a straight line passing through the axis of the rotating shaft on the outside, a rectifying plate whose rectifying plate has a cross-sectional arc shape, or a rotating rectifying plate Those arranged along the axial direction, that is, the radial inner direction have been proposed (see, for example, Patent Documents 1, 2, 3, 4, 5, or 6).
When the blades are airfoil blades, if an air flow flows from the thick part to the thin part of the blade, lift occurs in the vertical direction due to the pressure difference on the opposite side of the blade, and the thick part of the blade starts around the blade. The rotating shaft rotates. However, in the invention disclosed in Patent Documents 1, 2, 3, 4 or 6, the rectifying plate is provided so as to be inclined so that the wind flows from the front side of the thick part of the blade toward the thin part. Since the invention is disposed along the axial center direction of the rotating shaft, in other words, in the radially inward direction, the wind can be fed into the blade only from the guide vane located in the direction in which the wind blows. However, there is a drawback that it is not possible to send wind to the front side of the thick portion in the rotational direction at the same time.
Although the step [0004] of Patent Document 1 describes that the current plate is formed in an arc shape, the direction of the concave side surface of the curved surface is not specified. From the fact that the arrow of [FIG. 7] in the drawing indicates the direction in which the airfoil blade moves, and that the rectifying plate is provided along the radial inward direction in [FIG. It can be said that the inventors have not considered the direction of the concave side surface when the shape of the airfoil blade is arc-shaped in cross section. If the inclined current plate is arranged so that the concave side faces the outside and the convex side faces the inside, the wind flows in the direction of the thin part of the wing blade and does not contribute to high-speed rotation. is there.
Patent Document 6 discloses a vertical axis wind turbine in which a rectifying plate inclined at an inclination angle α is provided on the outer side of a rotor blade and a swirl airflow is applied to the rotor blade to obtain a large output.
In the case of the vertical axis wind turbine disclosed in Patent Document 6, the structure is complicated because a non-separate path is suspended between the bases of the guide vanes and the auxiliary guide vanes, and a spring is attached. Since the cross section is made of a rectangular plate having a flat cross section, there is a problem that it is difficult to cause the wind to act accurately on the concave side surfaces of the blades constituting the crossflow turbine section.
Blades made of rectangular pieces with a curved cross-section are arranged with the same curved shape side in the same direction along the circumferential direction, and guide vanes and auxiliary guide vanes are inclined alternately in the same direction on the outside of the vanes. Install a gear at the base of the auxiliary guide vane and suspend it between the gears with an endless chain so that the auxiliary guide vane is interlocked, or attach a spring to the base of the auxiliary guide vane and in case of strong wind such as typhoon There has been proposed a windmill that prevents excessive rotation of the windmill (see, for example, Patent Document 7). In the wind turbine disclosed in Patent Document 7, since the guide vane is made of a flat plate, the wind blowing from one direction cannot be applied to the curved concave side surfaces of all the vanes. There was a problem of being economical.
In addition, the windmills disclosed in Patent Documents 1 to 7 have a drawback that the number of guide plates is small, and the wind rectified by the guide plates and the wind that has not been rectified become turbulent airflow and prevent rotation of the rotating shaft. .
A cover is proposed that is provided with a cover that can move in the circumferential direction along the guide rails on the outside of the blades, so that the wind blown by the movement of the cover is received by the concave curved surface of each blade (for example, Patent Document 8). reference). In the invention disclosed in Patent Document 8, there is a problem that it is necessary to move the cover to an appropriate position based on the wind direction information, a cover moving motor or the like is required, and the structure becomes complicated.
JP 2006-22798 A JP 2003-120501 A JP 2010-185389 A Japanese Patent Laid-Open No. 2004-124921 JP 2010-196600 A WO2003-098035 JP 2000-161196 A JP 2005-201232 A

本願発明は上記従来技術の有する問題点に鑑みて創案されたものであって、吹き込んだ風をクロスフロー・タービン部の１箇所の羽根に作用させた後に、クロスフロー・タービン部の羽根で囲まれた中空部を回転軸を回避しながら通過し、別の位置に配置された羽根に作用させ、風を少なくとも合計２箇所の羽根に回転方向に作用させることで風力を有効利用し、クロスフロー・タービン部の回転軸の回転力を増大させるようにしたクロスフロー型垂直軸風車を提供することを目的とする。  The present invention was devised in view of the above-mentioned problems of the prior art, and after the blown wind is applied to one blade of the crossflow turbine section, it is surrounded by the blades of the crossflow turbine section. Passing through the hollow part while avoiding the rotating shaft, it acts on the blades arranged at different positions, and the wind acts effectively on at least two blades in the direction of rotation, crossflow An object of the present invention is to provide a crossflow type vertical axis wind turbine in which the rotational force of the rotating shaft of the turbine section is increased.

上記目的を達成するために本願発明のうち請求項１に記載の発明は、地面に対して略垂直に設置された回転軸と、横断面弧状の彎曲面を有する矩形状板よりなる複数の羽根が、該羽根の彎曲面凹状側面が前記回転軸を中心として同一周方向を向き環状に配設され前記回転軸の軸方向に平行に延び全体として円筒状に羽根が配設されたクロスフロー・タービン部と、クロスフロー・タービン部の外側に上下方向に長い矩形状の導風板を回転軸と平行に上下方向に延設すると共に、回転軸を中心として環状に配設されてなるクロスフロー型垂直軸風車において、導風板はクロスフロー・タービン部の外側に隙間を介して配設され、外部から吹き込む風が、クロスフロー・タービン部の１枚の羽根の彎曲面凹状側面に当たった後に、クロスフロー・タービン部の内側中空部を前記回転軸を回避しながら進み、別の位置に配置された羽根の彎曲面凹状側面に当たり、風が複数個所の羽根に作用することで前記クロスフロー・タービン部の高回転効率が可能に、前記導風板は横断面が弧状の彎曲面を有し、且つ彎曲面凹状側面が同一周方向を向いて配設され、隣り合う導風板間に開口される導風口が全方位的に配設されるように、隣り合う導風板の外端を結んで得られる仮想円筒面の接線に対して前記導風板の外側縁部が略９０度の角度を有して上側導風板取付板と下側導風板取付板に取り付けられ、前記導風板の彎曲面凹状側面の向きは、前記羽根の彎曲面凹状側面の向きとは反対方向に設けられていることを特徴とする。
請求項２に記載の発明は、羽根の横断面形状が、直径Ｒの仮想円の劣弧に形成され、導風板の横断面形状が直径ｒの仮想円の劣弧に形成され、直径Ｒと直径ｒはＲ：ｒ＝１：１．５〜２．５に設定されていることを特徴とする。In order to achieve the above object, the invention according to claim 1 of the present invention is characterized in that a plurality of blades comprising a rotating shaft installed substantially perpendicular to the ground and a rectangular plate having a curved surface with an arcuate cross section. However, the cross-flow-flow side in which the concave side surface of the curved surface of the blades is arranged in an annular shape facing the same circumferential direction around the rotation axis and extends in parallel with the axial direction of the rotation shaft. A cross flow comprising a turbine section and a rectangular air guide plate extending vertically in the vertical direction outside the cross flow turbine section and extending in the vertical direction in parallel with the rotation axis, and arranged annularly around the rotation axis In the vertical axis wind turbine, the wind guide plate is disposed outside the crossflow turbine section with a gap, and the wind blown from the outside hits the concave curved side surface of one blade of the crossflow turbine section. Later, cross flow -Advancing the inner hollow part of the bin part while avoiding the rotation axis, hitting the concave curved side surface of the blades arranged at different positions, and the wind acts on the blades at a plurality of locations, so that the height of the crossflow turbine unit is increased. The air guide plate has a curved curved surface with an arc-shaped cross section, and a curved curved concave side surface is disposed in the same circumferential direction so that rotational efficiency is possible. So that the outer edge of the air guide plate has an angle of approximately 90 degrees with respect to the tangent line of the virtual cylindrical surface obtained by connecting the outer ends of the adjacent air guide plates. Attached to the upper air guide plate mounting plate and the lower air guide plate mounting plate, and the direction of the curved curved concave side surface of the wind guide plate is provided in the direction opposite to the direction of the curved curved concave side surface of the blade. It is characterized by that.
In the invention according to claim 2, the cross-sectional shape of the blade is formed in a subarc of a virtual circle having a diameter R, the cross-sectional shape of the air guide plate is formed in a subarc of a virtual circle having a diameter r, and the diameter R And the diameter r is set to R: r = 1: 1.5 to 2.5.

本願発明は羽根と導風板の彎曲面凹状側面が互いに逆方向を向いて配設されているため、風車に吹き込んだ風のうち導風板の彎曲面凸状側面側を通る風は直接羽根の彎曲面凹状側面に衝突して作用し羽根を回転方向に回転させると共に風は進路を変更し、導風板の彎曲面凹状側面を通る風は、導風板の彎曲面凹状側面より羽根の彎曲面凹状側面に向けて進み羽根の彎曲面凹状側面に衝突して作用し、次にクロスフロー・タービン部の中空部を回転軸を回避して通り先に衝突した羽根とは離れた位置の羽根の彎曲面凹状側面に作用し、風を少なくとも２箇所の羽根の彎曲面凹状側面に作用させることで、クロスフロー・タービン部に吹き込んだ風を有効利用可能であるという効果を有し、ひいては回転軸の回転力を増大させるという効果がある。
本願発明は、クロスフロー・タービン部の外側にクロスフロー・タービン部の羽根とは彎曲面凹状側面が逆方向を向いて導風板を配設する構造であるため、部品点数が少なく低コスト化可能であり、且つメンテナンス作業も簡便であるという効果がある。
本願発明は、平面から視て隣り合う導風板の外端縁を結んで得られる仮想円筒面に対して前記導風板の外側縁部を接点とする接線に対して略９０度の角度を有して導風板の上下両端縁が上側導風板取付板と下側導風板取付板に取り付けられているので、隣り合う導風板間によって開設される導風口の入り口近傍の導風板が上下側導風板取付板の半径内方向に沿って配設され吹き込む風を導風板が抵抗となることなく大風量の風を円滑に取り込み可能であるという効果がある。In the present invention, since the concave curved side surfaces of the blade and the wind guide plate are arranged in opposite directions, the wind passing through the curved curved convex side surface of the wind guide plate out of the wind blown into the windmill directly It collides with the concave surface of the curved surface and rotates the blade in the direction of rotation, and the wind changes its path, and the wind passing through the concave surface of the curved surface of the wind guide plate進 み Advancing toward the concave side of the curved surface, colliding with the concave side of the curved surface of the blade, acting next, avoiding the rotation axis of the hollow part of the cross flow turbine part and passing away from the impinged blade It acts on the concave curved side surface of the blade, and has the effect that the wind blown into the crossflow turbine part can be effectively used by acting on the concave curved side surface of at least two blades. Has the effect of increasing the rotational force of the rotating shaft
The present invention has a structure in which the wind guide plate is arranged on the outside of the crossflow turbine section with the curved curved concave side facing the opposite direction to the blades of the crossflow turbine section. There is an effect that it is possible and the maintenance work is simple.
The present invention has an angle of approximately 90 degrees with respect to a tangential line having the outer edge of the air guide plate as a contact point with respect to a virtual cylindrical surface obtained by connecting the outer edges of adjacent air guide plates as viewed from above. Since the upper and lower end edges of the air guide plate are attached to the upper air guide plate mounting plate and the lower air guide plate mounting plate, the wind guide near the entrance of the air guide opening established between the adjacent air guide plates The plate is arranged along the radial inward direction of the upper and lower air guide plate mounting plates, and there is an effect that a large amount of air can be smoothly taken in without blowing the wind that is blown into the air guide plate.

本願発明は彎曲された矩形状板よりなる多数の羽根を同一彎曲面が同一周方向を向いて配設して構成されたクロスフロー・タービン部の外側に、彎曲された矩形状板よりなる多数の導風板を同一彎曲面が羽根とは逆向きに周方向に沿って配設させることで、吹き込む風が２箇所の羽根の彎曲面凹状側面に当たるようにし、羽根の回転駆動力を増大させることを実現した。又、導風板の外側縁部を結ぶ仮想円筒面に対して導風板の外端縁部が略直交するように配設することで、風車の外側に大きな導風口を外方に向けて開設し、導風板が風車方向に吹く風の抵抗となることがなく風がスムーズに風車内へと入り込み、多量の風を逃がすことなく風車内へ案内し導入することを実現した。  In the present invention, a large number of blades made of a bent rectangular plate are arranged on the outer side of a crossflow turbine section formed by arranging a plurality of blades made of a curved rectangular plate with the same curved surface facing the same circumferential direction. By arranging the same wind guide plate along the circumferential direction in the direction opposite to the blade, the blown air blows against the concave curved side surfaces of the two blades, thereby increasing the rotational driving force of the blade. Realized that. Also, by arranging the outer edge of the wind guide plate to be substantially perpendicular to the virtual cylindrical surface connecting the outer edge of the wind guide plate, the large wind guide port faces the outside of the windmill. Established, the wind guide plate does not become the resistance of the wind blowing in the windmill direction, and the wind smoothly enters the windmill and guides and introduces it into the windmill without escaping a large amount of wind.

図１〜図５に示されるクロスフロー型垂直軸風車の実施例について説明する。
図１は実施例１を説明するためのクロスフロー型垂直軸風車の平面図、図２は正面図、図３は風の流れを示す図１のＡ−Ａ線断面図、図４は羽根の彎曲状態を示す拡大平面説明図、図５は導風板の彎曲状態を示す拡大平面説明図である。
これらの図において、クロスフロー・タービン部１の外側には隙間２を介して多数枚の導風板３をクロスフロー・タービン部１を囲むように環状に配設している。An embodiment of the crossflow type vertical axis wind turbine shown in FIGS. 1 to 5 will be described.
FIG. 1 is a plan view of a crossflow type vertical axis wind turbine for explaining the first embodiment, FIG. 2 is a front view, FIG. 3 is a sectional view taken along line AA in FIG. 1 showing the flow of wind, and FIG. FIG. 5 is an enlarged plan view showing the curved state of the air guide plate. FIG.
In these drawings, a large number of wind guide plates 3 are annularly arranged outside the crossflow turbine section 1 via a gap 2 so as to surround the crossflow turbine section 1.

クロスフロー・タービン部１について説明する。上側円形板４と下側円形板５は同径の円形板よりなり、上下方向に所定距離を有して平行な位置関係となるように離隔している。地面に対して垂直に立設された回転軸６は下側円形板５と上側円形板４の中心に貫通して一体的に取り付けられている。図３に示すように、下側円形板５と上側円形板４には周縁を大径円とし上下側円形板４、５の半径より小径の小径円との間に設けられる環状範囲に於いて、羽根７の上下両端を取り付けている。羽根７は、一方向に著しく長い矩形状板を平視及び底面視が円弧状に彎曲された劣弧の矩形状片よりなる。羽根７は、回転軸６の軸心を中心として同一周方向に同一彎曲面が向き、同一羽根角をもって配設されている。上下側円形板４、５の外周縁に於ける羽根７の外端縁配設位置を接点とする接線と、羽根７の延長線とのなす羽根角は限定するものではないが、１０°〜４０°程度が好適である。羽根７は、ゴム成分を含有した耐衝撃性合成樹脂組成物で構成されているものを用いても良い。  The crossflow turbine unit 1 will be described. The upper circular plate 4 and the lower circular plate 5 are circular plates having the same diameter, and are separated from each other so as to have a parallel positional relationship with a predetermined distance in the vertical direction. The rotating shaft 6 erected perpendicularly to the ground passes through the center of the lower circular plate 5 and the upper circular plate 4 and is integrally attached. As shown in FIG. 3, the lower circular plate 5 and the upper circular plate 4 have an annular range provided between a large-diameter circle and a small-diameter circle having a smaller diameter than the radius of the upper and lower circular plates 4 and 5. The upper and lower ends of the blade 7 are attached. The blades 7 are made of inferior arc rectangular pieces obtained by bending a rectangular plate that is remarkably long in one direction into a circular arc when viewed in plan and bottom. The blades 7 are arranged with the same blade angle in the same circumferential direction around the axis of the rotating shaft 6 and with the same blade angle. The blade angle between the tangent line having the contact position at the outer edge of the blade 7 on the outer peripheral edge of the upper and lower circular plates 4 and 5 and the extension line of the blade 7 is not limited, but is 10 ° to About 40 ° is preferable. The blade 7 may be composed of an impact-resistant synthetic resin composition containing a rubber component.

上側円形板４の上方には隙間を介して上側導風板取付板８が、下側円形板５の下方には隙間を介して下側導風板取付板９が互いに平行な位置関係に配設されている。上側導風板取付板８と下側導風板取付板９は、上側円形板４と下側円形板５よりも大径で且つ同一径の円形板よりなる。上側円形板４の中心を貫通して上方へ突出した回転軸６の上端部はベアリング１０により上側導風板取付板８の中心に回転自在に取り付けられている。下側円形板５の中心を貫通して下方へ突出した回転軸６の下端部はベアリング１１により下側導風板取付板９の中心に回転自在に取り付けられている。導風板３は平面視及び底面視が円弧状に彎曲した矩形状板よりなる。図４に示すように羽根７の横断面形状が直径Ｒの仮想円の劣弧に形成され、図５に示すように導風板３の横断面形状が直径ｒの仮想円の劣弧に形成されているとすると、Ｒ：ｒ＝１：１．５〜２．５に設定されていることが好ましいが、Ｒ：ｒの割合は、上記比率に限定するものではない。具体例として、上下側円形板４、５の直径が１０００ｍｍである場合、羽根７の仮想円の直径Ｒが２５０ｍｍで、導風板３の仮想円の直径ｒが４００ｍｍに設定することが考えられる。図１及び図３に示すように、上側導風板取付板８と下側導風板取付板９の外周縁と、上下側円形板４、５の径より僅かばかり大径円との間の環状範囲に於いて、導風板３の上下両端が上側導風板取付板８と下側導風板取付板９に夫々取り付けられている。導風板３は同一彎曲面が同一周方向を向き、且つ彎曲面凹状側面が羽根７の彎曲面凹状側面とは反対方向を向いて周方向に所定間隔離隔して配設されている。導風板３の外側縁近傍部分は、上側導風板取付板８と下側導風板取付板９の外周取付端を接点とする接線１２に対して略９０°の角度を有して上側導風板取付板８と下側導風板取付板９に取り付けられ、隣り合う導風板間に開設される導風口が周方向に定間隔を有して全方位的に開口するようにしている。導風板３、３間に開口する導風通路が吹き込む風の進路と略直線状になり導風板が抵抗となることなくスムーズに、しかも大量に吹き込むことができるためである。中空支柱１３は下側導風板取付板９の下面に取り付けられている。１４は発電機である。  An upper wind guide plate mounting plate 8 is disposed above the upper circular plate 4 via a gap, and a lower wind guide plate mounting plate 9 is disposed below the lower circular plate 5 via a gap so as to be parallel to each other. It is installed. The upper air guide plate mounting plate 8 and the lower air guide plate mounting plate 9 are circular plates having a diameter larger than that of the upper circular plate 4 and the lower circular plate 5 and the same diameter. An upper end portion of the rotating shaft 6 that protrudes upward through the center of the upper circular plate 4 is rotatably attached to the center of the upper air guide plate mounting plate 8 by a bearing 10. A lower end portion of the rotating shaft 6 that protrudes downward through the center of the lower circular plate 5 is rotatably attached to the center of the lower air guide plate mounting plate 9 by a bearing 11. The air guide plate 3 is a rectangular plate that is bent in an arc shape in plan view and bottom view. As shown in FIG. 4, the cross-sectional shape of the blade 7 is formed in a subarc of a virtual circle having a diameter R, and the cross-sectional shape of the air guide plate 3 is formed in a subarc of a virtual circle having a diameter r as shown in FIG. In this case, it is preferable that R: r = 1: 1.5 to 2.5, but the ratio of R: r is not limited to the above ratio. As a specific example, when the diameters of the upper and lower circular plates 4 and 5 are 1000 mm, the virtual circle diameter R of the blades 7 may be set to 250 mm and the virtual circle diameter r of the air guide plate 3 may be set to 400 mm. . As shown in FIGS. 1 and 3, between the outer peripheral edge of the upper air guide plate mounting plate 8 and the lower air guide plate mounting plate 9 and a slightly larger diameter circle than the diameter of the upper and lower circular plates 4 and 5. In the annular range, the upper and lower ends of the air guide plate 3 are attached to the upper air guide plate mounting plate 8 and the lower air guide plate mounting plate 9, respectively. The air guide plate 3 is disposed with the same saddle curved surface facing the same circumferential direction, and the saddle curved concave side faces in the opposite direction to the concave curved concave side surface of the blade 7 and spaced apart by a predetermined distance in the circumferential direction. The portion near the outer edge of the wind guide plate 3 has an angle of approximately 90 ° with respect to the tangent line 12 with the outer peripheral mounting ends of the upper wind guide plate mounting plate 8 and the lower wind guide plate mounting plate 9 as contacts. It is attached to the air guide plate mounting plate 8 and the lower air guide plate mounting plate 9 so that the air guide ports opened between the adjacent air guide plates are opened in all directions with a constant interval in the circumferential direction. Yes. This is because the air guide passage opened between the air guide plates 3 and 3 is substantially straight with the path of the air to be blown, and the wind guide plate can be blown smoothly and in large quantities without becoming a resistance. The hollow column 13 is attached to the lower surface of the lower air guide plate attachment plate 9. Reference numeral 14 denotes a generator.

図３中の矢印を参照にして作用について説明する。導風板３、３間に開設される導風口から風が入ると、風は導風板３の彎曲面凹状側面と隣り合う導風板３の彎曲面凸状側面に案内されて進み、隙間２に於いてはクロスフロー・タービン部１の半径に対して斜め方向に入り込む。風は羽根７の彎曲面凹状側面に当たり第１回目の衝突をする。第１回目の衝突後、風はクロスフロー・タービン部１の内側中空部へと進む。風は、クロスフロー・タービン部１の回転による遠心力により回転軸６を回避しながら進み、第１回目の衝突した羽根の位置から離れた位置の羽根７の彎曲面凹状側面に当たり第２回目の衝突をする。第２回目の衝突後、風は反射して隙間２をクロスフロー・タービン部１の半径に対して斜め外方向に進み、導風板３、３間を通って外部へ逃げる。風は第１回目の衝突で羽根７に彎曲面凹状側面側から彎曲面凸状側面側へと作用し、第２回目の衝突でも羽根７に彎曲面凹状側面側から彎曲面凸状側面側へと作用させる。その結果、吹き込む風を２度羽根に作用させることができ、クロスフロー・タービン部１の回転力が増大する。  The operation will be described with reference to the arrows in FIG. When the wind enters from the air guide opening formed between the air guide plates 3 and 3, the wind is guided by the concave curved side surface of the wind guide plate 3 and the curved convex side surface of the adjacent wind guide plate 3, and the gap In 2, the cross flow turbine portion 1 enters in an oblique direction with respect to the radius. The wind hits the concave curved side surface of the blade 7 and makes a first collision. After the first collision, the wind advances to the inner hollow part of the crossflow turbine part 1. The wind advances while avoiding the rotating shaft 6 due to the centrifugal force generated by the rotation of the crossflow turbine unit 1 and hits the concave curved side surface of the blade 7 at a position away from the position of the blade that collided for the first time. Have a collision. After the second collision, the wind is reflected and travels obliquely outward through the gap 2 with respect to the radius of the crossflow turbine section 1, and escapes outside through the air guide plates 3 and 3. The wind acts on the blade 7 from the concave curved concave side to the curved convex side in the first collision, and from the concave curved concave side to the blade 7 in the second collision. And act. As a result, the blown wind can be applied to the blades twice, and the rotational force of the crossflow turbine unit 1 is increased.

本願発明は、水を導風板３、３間に導入することで水力発電にも利用可能である。  The present invention can also be used for hydroelectric power generation by introducing water between the air guide plates 3 and 3.

クロスフロー型垂直軸風車の平面図である。（実施例１）It is a top view of a crossflow type vertical axis windmill. Example 1 クロスフロー型垂直軸風車の正面図である。（実施例１）It is a front view of a crossflow type vertical axis windmill. Example 1 風の流れを示す図１のＡ−Ａ線断面図である。（実施例１）It is AA sectional view taken on the line of FIG. 1 which shows the flow of a wind. Example 1 羽根の彎曲状態を示す拡大平面説明図である。（実施例１）It is expansion plane explanatory drawing which shows the bending state of a blade | wing. Example 1 導風板の彎曲状態を示す拡大平面説明図である。（実施例１）It is an enlarged plan explanatory view showing the bent state of the air guide plate. Example 1

１ クロスフロー・タービン部
２ 隙間
３ 導風板
６ 回転軸
７ 羽根
８ 上側導風板取付板
９ 下側導風板取付板
１２ 接線DESCRIPTION OF SYMBOLS 1 Crossflow turbine part 2 Clearance 3 Wind guide plate 6 Rotating shaft 7 Blade 8 Upper wind guide plate mounting plate 9 Lower wind guide plate mounting plate 12 Tangent

Claims (2)

地面に対して略垂直に設置された回転軸と、
横断面弧状の彎曲面を有する矩形状板よりなる複数の羽根が、該羽根の彎曲面凹状側面が前記回転軸を中心として同一周方向を向き環状に配設され前記回転軸の軸方向に平行に延び全体として円筒状に羽根が配設されたクロスフロー・タービン部と、
該クロスフロー・タービン部の外側に上下方向に長い矩形状の導風板を前記回転軸と平行に上下方向に延設すると共に、前記回転軸を中心として環状に配設されてなるクロスフロー型垂直軸風車において、
前記導風板は前記クロスフロー・タービン部の外側に隙間を介して配設され、
外部から吹き込む風が、クロスフロー・タービン部の１枚の羽根の彎曲面凹状側面に当たった後に、クロスフロー・タービン部の内側中空部を前記回転軸を回避しながら進み、別の位置に配置された羽根の彎曲面凹状側面に当たり、風が複数個所の羽根に作用することで前記クロスフロー・タービン部の高回転効率が可能に、前記導風板は横断面が弧状の彎曲面を有し、且つ彎曲面凹状側面が同一周方向を向いて配設され、
隣り合う導風板間に開口される導風口が全方位的に配設されるように、隣り合う導風板の外端を結んで得られる仮想円筒面の接線に対して前記導風板の外側縁部が略９０度の角度を有して上側導風板取付板と下側導風板取付板に取り付けられ、
前記導風板の彎曲面凹状側面の向きは、前記羽根の彎曲面凹状側面の向きとは反対方向に設けられていることを特徴とするクロスフロー型垂直軸風車。A rotating shaft installed substantially perpendicular to the ground;
A plurality of blades made of a rectangular plate having an arcuate curved surface with an arc cross section, and the curved curved concave side surfaces of the blades are arranged in an annular shape with the rotation axis as a center and oriented in the same circumferential direction, and parallel to the axial direction of the rotation shaft A crossflow turbine section extending in a cylindrical shape and having blades disposed in a cylindrical shape as a whole;
A cross-flow type in which a rectangular air guide plate that is long in the vertical direction extends outside the cross-flow turbine portion in the vertical direction in parallel with the rotary shaft, and is annularly arranged around the rotary shaft In vertical axis wind turbines,
The air guide plate is disposed outside the crossflow turbine portion with a gap between them,
After the wind blown from the outside hits the concave curved side surface of one blade of the crossflow turbine section, the inner hollow section of the crossflow turbine section advances while avoiding the rotating shaft and is arranged at another position. The cross flow turbine section can have high rotational efficiency by hitting the concave curved side surface of the blades, and the wind acts on the blades at a plurality of locations, and the wind guide plate has a curved surface with an arc-shaped cross section. And the concave curved side surfaces are arranged facing the same circumferential direction,
The air guide plate is connected to the tangential line of the virtual cylindrical surface obtained by connecting the outer ends of the adjacent air guide plates so that the air guide ports opened between the adjacent air guide plates are arranged in all directions. The outer edge has an angle of approximately 90 degrees and is attached to the upper wind guide plate mounting plate and the lower wind guide plate mounting plate,
The cross flow type vertical axis wind turbine characterized in that the direction of the concave curved side surface of the wind guide plate is provided in the direction opposite to the direction of the concave curved side surface of the blade. 上記羽根の横断面形状が、直径Ｒの仮想円の劣弧に形成され、
上記導風板の横断面形状が直径ｒの仮想円の劣弧に形成され、
直径Ｒと直径ｒはＲ：ｒ＝１：１．５〜２．５に設定されていることを特徴とする請求項１に記載のクロスフロー型垂直軸風車。The cross-sectional shape of the blade is formed in a subarc of a virtual circle having a diameter R,
The cross-sectional shape of the air guide plate is formed in a subarc of a virtual circle having a diameter r,
2. The crossflow type vertical axis wind turbine according to claim 1, wherein the diameter R and the diameter r are set to R: r = 1: 1.5 to 2.5.
JP2011130668A 2011-05-24 2011-05-24 Crossflow type vertical shaft wind turbine Pending JP2012241709A (en)

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JP6144807B1 (en) * 2016-08-19 2017-06-07 昊基 井手 Windmill
CN109282394A (en) * 2018-11-20 2019-01-29 珠海格力电器股份有限公司 Air outlet flow guiding structure and clarifier
CN113227566A (en) * 2018-09-04 2021-08-06 全向创新有限公司 Omnidirectional generator device

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Publication number Priority date Publication date Assignee Title
JP6144807B1 (en) * 2016-08-19 2017-06-07 昊基 井手 Windmill
CN113227566A (en) * 2018-09-04 2021-08-06 全向创新有限公司 Omnidirectional generator device
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CN109282394A (en) * 2018-11-20 2019-01-29 珠海格力电器股份有限公司 Air outlet flow guiding structure and clarifier

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