TWM588736U - Auxiliary device for horizontal axis wind turbine blade - Google Patents

Auxiliary device for horizontal axis wind turbine blade Download PDF

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TWM588736U
TWM588736U TW108210567U TW108210567U TWM588736U TW M588736 U TWM588736 U TW M588736U TW 108210567 U TW108210567 U TW 108210567U TW 108210567 U TW108210567 U TW 108210567U TW M588736 U TWM588736 U TW M588736U
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auxiliary
blade
wind turbine
auxiliary device
axis wind
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TW108210567U
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Chinese (zh)
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徐傑輝
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天力離岸風電科技股份有限公司
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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
    • Y02E10/20—Hydro energy
    • 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
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Abstract

一種用於水平軸風力發電機葉片之輔助器，包括有底座，具有彼此相對固定面與外露表面，固定面固設於葉片吸力側表面且位於葉片厚度最大位置；以及二輔助塊，其兩者呈非平行固設於底座的外露表面，且輔助塊具有第輔助面、第二輔助面，又第一輔助面與第二輔助面分別以一端相連於該外露表面；以該輔助器設置於於葉片的吸力側產生紊流而提升葉片升力。Auxiliary device for horizontal axis wind turbine blades, including a base, having a fixed surface and an exposed surface opposite to each other, the fixed surface is fixed on the suction side surface of the blade and is located at the position where the thickness of the blade is the largest; and two auxiliary blocks, both of which It is non-parallel fixed to the exposed surface of the base, and the auxiliary block has a first auxiliary surface and a second auxiliary surface, and the first auxiliary surface and the second auxiliary surface are respectively connected to the exposed surface with one end; Turbulence is generated on the suction side of the blade and lifts the blade.

Description

用於水平軸風力發電機葉片之輔助器Auxiliary device for horizontal axis wind turbine blade

本創作是關於一種安裝於葉片的輔助器，特別是應用在水平軸風力發電機的葉片吸力側位置者。This creation is about an auxiliary device installed on the blade, especially applied to the position of the suction side of the blade of the horizontal axis wind turbine.

近年來生化能源價格高漲，各國積極發展永續或再生能源科技，目前較為接受的替代方案有太陽能、風力、潮差發電等，期望能夠在未來逐漸取代各國目前十分仰賴的核能發電廠與燃煤火力發電廠。特別是在日本發生因地震導致嚴重核能電廠災後，各國紛紛建立核能與火力等電廠的退場或廢除機制，為了彌補前述發電廠所短缺的電力，需要加速發展前述永續能源的利用與建立。In recent years, the price of biochemical energy has risen, and countries are actively developing sustainable or renewable energy technologies. The currently accepted alternatives are solar power, wind power, and tidal power generation. It is expected that they can gradually replace nuclear power plants and coal-fired power plants that countries currently rely on in the future. Thermal power plant. Especially after the severe nuclear power plant disasters caused by the earthquake in Japan, countries have established mechanisms for the withdrawal or abolition of nuclear and thermal power plants. In order to make up for the shortage of power in the aforementioned power plants, it is necessary to accelerate the development and use of the aforementioned sustainable energy.

目前在各國的沿海地區甚至離岸的海面所架設的風力發電機大多是屬於水平軸發電機，此種發電機需要在地面建構地樁，再將塔座安裝在地樁上，塔座的上端則是有機艙、發電機組，更安裝轉子葉片等，螺旋槳迎向面風向，透過風力驅動葉片轉動內部轉子機構帶動發電機。At present, most of the wind generators erected in the coastal areas of the countries or even offshore are horizontal-axis generators. Such generators need to build ground piles on the ground, and then install the tower base on the ground piles. The upper end of the tower base It is an organic cabin, a generator set, and rotor blades are installed. The propeller is facing the wind direction, and the blades are driven by the wind to rotate the internal rotor mechanism to drive the generator.

風力發電機的葉片橫斷面的形狀稱為葉型，葉片斷面的集合特性與葉片的空氣動力有密切的關係。葉片的橫斷面並非是對稱型態，主要有較為彎曲的吸力面以及較為平坦的壓力面，氣流推動葉片並穿過葉片時，將氣流分為兩個部分，一部分氣流從葉片的吸力面流過，另一部分氣流從葉片的壓力面流過，由於吸力面較為彎曲壓力面較為平坦，所以氣流流過吸力面的流速是較吸力面來的塊。根據流體力學原理，氣流流速慢則大氣壓力較大，氣流流速快大氣壓力較小，這樣來推論葉片的壓力面的壓力比葉片的吸力面的壓力高，兩者的壓力差便形成葉片的升力。換言之，氣流的速度越快，葉片產生的升力也就越大，當升力大於阻力時，就可以推動風力發電機進行旋轉發電，而當升力小於阻力時，就無法推動進行發電。The shape of the blade cross section of a wind turbine is called a blade shape, and the collection characteristics of the blade cross section are closely related to the aerodynamics of the blade. The cross-section of the blade is not symmetrical. It mainly has a curved suction surface and a flat pressure surface. When the airflow pushes the blade and passes through the blade, the airflow is divided into two parts, and part of the airflow flows from the suction surface of the blade. However, another part of the airflow flows from the pressure surface of the blade. Since the suction surface is more curved and the pressure surface is flatter, the flow velocity of the airflow through the suction surface is a block from the suction surface. According to the principles of fluid mechanics, if the airflow velocity is slow, the atmospheric pressure is greater, and if the airflow velocity is faster, the atmospheric pressure is smaller. In this way, it can be inferred that the pressure on the pressure surface of the blade is higher than the pressure on the suction surface of the blade, and the pressure difference between the two forms the lift of the blade. . In other words, the faster the airflow speed, the greater the lift generated by the blades. When the lift is greater than the resistance, the wind turbine can be propelled to generate electricity, and when the lift is less than the resistance, it cannot be driven to generate electricity.

再者，葉片能夠產生升力是因為葉片在吸力面與壓力面上、存在著壓力差，前提是要葉面的氣流不分離。但是當葉片以一定的傾斜角(稱為攻角)在大氣中轉動時，就會出現上下表面的壓力不一致，從而也會產生升力。In addition, the blade can generate lift because the blade has a pressure difference between the suction surface and the pressure surface, provided that the airflow on the blade surface is not separated. However, when the blade rotates in the atmosphere at a certain angle of inclination (called the angle of attack), there will be inconsistent pressure on the upper and lower surfaces, which will also produce lift.

當葉片與氣流方向的攻角增加則升力會增大，阻力也會增大，如果葉片的攻角大到了一定程度，葉片相當於在氣流中豎起的平板，由於角度太大，速度太快，流過吸力面的氣流流線無法連貫會發生分離，同時受外層氣流的帶動，向後緣流動，就會捲成一個封閉的渦流，亦稱為分離渦，此指旋轉的分離渦中壓力是不變的，它的壓力等於吸力面的氣流壓力，所以此使葉片的吸力面與壓力面的壓力差值會小很多，造成葉片的升力會比原來狀態來的小，以致整個發電系統效率大幅降低。When the angle of attack between the blade and the airflow direction increases, the lift will increase and the resistance will increase. If the angle of attack of the blade is large to a certain degree, the blade is equivalent to a flat plate erected in the airflow. Because the angle is too large, the speed is too fast , The airflow flowing through the suction surface cannot be coherent and will be separated. At the same time, driven by the outer airflow, the flow to the trailing edge will be rolled into a closed vortex, also known as the separation vortex. This refers to the pressure in the rotating separation vortex is not The pressure is equal to the airflow pressure on the suction surface, so the pressure difference between the suction surface and the pressure surface of the blade will be much smaller, causing the lift of the blade to be smaller than the original state, so that the efficiency of the entire power generation system is greatly reduced .

一般說來在設計葉片的攻角時將其角度設定為8至15度較好，超過15度後葉片的吸力面氣流會發生分離，產生渦流，升力會迅速下降，阻力會急劇上升，這一現象稱為失速；葉片失速對整個螺旋槳造成的影響如下：Generally speaking, it is better to set the angle of the blade to 8 to 15 degrees when designing the angle of attack of the blade. After 15 degrees, the airflow on the suction surface of the blade will separate, generating vortices, the lift will drop rapidly, and the resistance will rise sharply. The phenomenon is called stall; the effect of blade stall on the entire propeller is as follows:

其一、葉片兩側壓差損失，增加了葉片運行的阻力，降低了運行升力，提高了葉片啟動風速、額定風速，降低了葉片總體運行效率。First, the pressure difference loss on both sides of the blade increases the running resistance of the blade, reduces the operating lift, increases the starting wind speed and rated wind speed of the blade, and reduces the overall operating efficiency of the blade.

其二、不穩定的渦流會造成葉片在運行中的抖顫，縮短了葉片、內部轉子機構等的使用壽命。Second, the unstable vortex will cause the blade to tremble during operation, shortening the service life of the blade and internal rotor mechanism.

本創作用於水平軸風力發電機葉片之輔助器主要目的係在於解決氣流分離導致葉片提前失速，降低葉片氣動性能及功率轉換的問題。The main purpose of the creation of the auxiliary device for horizontal axis wind turbine blades is to solve the problems of early stall of the blades caused by airflow separation, reducing the problems of blade aerodynamic performance and power conversion.

一種用於水平軸風力發電機葉片之輔助器，其包括：一底座，具有彼此相對一固定面與一外露表面，該固定面固設於葉片吸力側表面且位於葉片厚度最大位置；以及二輔助塊，其兩者呈非平行固設於該底座的外露表面，且該二輔助塊具有一第一輔助面、一第二輔助面，又該第一輔助面與該第二輔助面分別以一端相連於該外露表面；以該輔助器於葉片的吸力側產生紊流而提升葉片升力。An auxiliary device for a blade of a horizontal axis wind power generator, comprising: a base having a fixed surface and an exposed surface opposite to each other, the fixed surface is fixed on the suction side surface of the blade and is located at the position where the blade thickness is maximum; and two auxiliary The two blocks are non-parallel fixed to the exposed surface of the base, and the two auxiliary blocks have a first auxiliary surface and a second auxiliary surface, and the first auxiliary surface and the second auxiliary surface respectively have one end Connected to the exposed surface; the auxiliary device generates turbulent flow on the suction side of the blade to lift the blade lift.

為了解決前述氣流分離所造成的葉片氣動性能降低的問題，將本創作輔助器安裝在葉片的吸力側(吸力面)，特別是安裝在葉片前緣的一段或是幾段狹長小翼之處，如此能增大葉片臨界功角來活得升力增加的新穎機構，主要作用就是能有效阻止氣流過早分離現象。In order to solve the problem of the aerodynamic performance of the blade caused by the separation of the aforementioned airflow, the authoring aid is installed on the suction side (suction surface) of the blade, especially where it is installed on one or several narrow and long wings on the leading edge of the blade. Such a novel mechanism that can increase the critical work angle of the blade to live the increase of lift force, the main function is to effectively prevent the premature separation of the airflow.

本創作輔助器的作用原理是以輔助塊能相對於葉片表面接近垂直型態又其展弦比翼小，所以它在氣流中和常規翼型一樣能產生翼尖渦，由於其展弦比小，因此翼尖渦的強度相對較強，就能把能良傳抵給了氣流分離層，使處於滯留狀態下的氣流分離層流場獲得附加能量後，能夠繼續貼附在葉片表面而不致分離，就是本創作輔助器的基本工作原理。The working principle of this creation aid is that the auxiliary block can be close to the vertical shape with respect to the surface of the blade and its aspect ratio is smaller than that of the wing. Therefore, it can generate wingtip vortices in the airflow like the conventional airfoil. Due to its small aspect ratio, Therefore, the strength of the wingtip vortex is relatively strong, which can transfer Nengliang to the airflow separation layer, so that after the stagnation state of the airflow separation layer flow field obtains additional energy, it can continue to adhere to the blade surface without separation. This is the basic working principle of this authoring assistant.

本創作輔助器的角度與間隔設定，根據過往氣動實驗證明當攻角α≧7時，展向間閣λ＝12㎜，安裝偏角β=20，減阻效果較好。輔助器安裝角對氣流分離層分離控制效果主要表現在漩渦的強度。安裝偏角太小，產生的漩渦強度不強，對氣流分離層內流動的慘混效果不大。因此定義最佳安裝偏角為β=20 ˚。同向反向傾斜紊流與邊界層相互作用後分別產生同向、反向旋轉渦列，同向旋轉流向渦列能夠在局部產生較強的控制握用，而反向旋轉流向渦烈則可以對邊界層形成均勻的控制，並具有較大的流向控制區域，故本創作輔助器設置違反向相對排列，角度設置為偏角20˚。The setting of the angle and interval of this creation aid has been proved by past aerodynamic experiments that when the angle of attack α≧7, the spreading cabinet λ=12㎜ and the installation declination angle=20, the drag reduction effect is better. The effect of the installation angle of the auxiliary device on the separation control of the gas separation layer is mainly reflected in the strength of the vortex. If the installation deflection angle is too small, the intensity of the generated vortex is not strong, and it has little effect on the turbulent mixing in the air separation layer. Therefore, the optimal installation declination angle is defined as β=20˚. The co-rotating and slanting turbulence interacts with the boundary layer to produce co-rotating and counter-rotating vortices, respectively. The co-rotating and flowing vortices can produce strong local control, while the counter-rotating vorticity can The boundary layer is uniformly controlled and has a large flow direction control area, so the setting of the creative assistant is contrary to the relative arrangement, and the angle is set to an off angle of 20˚.

本創作輔助器的材質，可以由多種材料製作而成，例如鋁合金、不鏽鋼、塑膠等材質。由於風力發電機的使用環境較為嚴苛，金屬材質的耐磨、抗老化等特性較塑膠來的好，又鋁合金的成型技術較不鏽鋼更加簡單，成本更低，選擇鋁合金製作輔助器是較佳材料。The material of this creation aid can be made of various materials, such as aluminum alloy, stainless steel, plastic, etc. Due to the harsh environment of wind turbines, the wear resistance and anti-aging properties of metal materials are better than those of plastics, and the forming technology of aluminum alloy is simpler than stainless steel, and the cost is lower.佳材料。 Good materials.

本創作輔助器的固定方式，由於輔助器需要牢固於結合於葉片的吸力側(面)，又處於惡劣環境穩定運作長達20年，因此需要穩定可靠的安裝方式，可以選擇膠接和鉚接技術固定。The fixation method of this creation aid is required to be firmly attached to the suction side (face) of the blade, and it has been operating in a harsh environment for up to 20 years. Therefore, a stable and reliable installation method is required. You can choose glue and riveting technology fixed.

採用本創作輔助器安裝於葉片，能夠改善葉片的氣動性能，如下列所述：Using this creation aid to install on the blade can improve the aerodynamic performance of the blade, as described below:

其一、提高葉片的氣動信能，安裝輔助器的葉片後能提高葉片的升力阻力比，使得葉片在更低的啟動風速下轉動，在較低的額定風速下就能達到額定功率。在高風速下，輸出的功率取縣也更加平穩。在相同風況條件下，增加風電量3%至5%。First, improve the aerodynamic signal energy of the blade. After the auxiliary blade is installed, the lift resistance ratio of the blade can be improved, so that the blade rotates at a lower starting wind speed and can reach the rated power at a lower rated wind speed. At high wind speeds, the output power is also more stable with the county. Under the same wind conditions, increase wind power by 3% to 5%.

其二、延長葉片的使用壽命，渦流的產生伴隨產生空氣不規律的運動，使得葉片運行時會有大量非設計狀態下的振動，本創作輔助器可以有效阻止葉片在運行中的抖顫，可以延長葉片的使用壽命。Second, prolong the service life of the blade. The generation of eddy current is accompanied by irregular air movement, which causes a large amount of vibration in the non-design state when the blade is running. This creation aid can effectively prevent the blade from shaking during operation and can be extended. The service life of the blade.

請參閱第一至第四圖所示，揭示一種用於水平軸風力發電機葉片之輔助器1，其包括：一底座11，具有彼此相對一固定面12與一外露表面13，該固定面12固設於葉片2吸力側21表面且位於葉片2厚度最大位置；以及二輔助塊14，其兩者呈非平行固設於該底座11的外露表面13，且該二輔助塊14具有一第一輔助面141、一第二輔助面142，又該第一輔助面141與該第二輔助面142分別以一端相連於該外露表面13；以該輔助器1於葉片2的吸力側21產生紊流而提升葉片2升力。前述葉片2是指水平軸風力發電機的螺旋槳葉片。Referring to the first to fourth figures, an auxiliary device 1 for a horizontal axis wind turbine blade is disclosed, which includes: a base 11 having a fixed surface 12 and an exposed surface 13 opposite to each other, the fixed surface 12 It is fixed on the surface of the suction side 21 of the blade 2 and is located at the maximum thickness of the blade 2; and two auxiliary blocks 14, both of which are fixed non-parallel to the exposed surface 13 of the base 11, and the two auxiliary blocks 14 have a first The auxiliary surface 141, a second auxiliary surface 142, and the first auxiliary surface 141 and the second auxiliary surface 142 are connected to the exposed surface 13 at one end respectively; the auxiliary device 1 generates turbulence on the suction side 21 of the blade 2 And lift the blade 2 liters. The aforementioned blade 2 refers to a propeller blade of a horizontal-axis wind turbine.

如此本創作輔助器1將其安裝於葉片的吸力側21 表面，可以增大葉片2鄰界攻角來獲得阻力降低、升力增加之效用，更可以阻止不穩定的渦流所造成的葉片2轉動下的抖顫，延長葉片2與發電機內部相關傳動機構的使用壽命。In this way, the creation aid 1 is installed on the surface of the suction side 21 of the blade, which can increase the blade's adjacent angle of attack to obtain the effect of lowering the resistance and increasing the lift, and can also prevent the blade 2 from turning down due to unstable vortex Tremor, prolong the service life of the blade 2 and the related transmission mechanism inside the generator.

請參閱第五圖所示，本創作的輔助器1安裝在葉片2厚度最大位置，並位於葉片2的吸力側21表面位置。如第一圖所示，該二輔助塊14具有連接該第一輔助面141與該第二輔助面142之一相鄰面143，又該二輔助塊14具有相對之二切風面144並相連於該外露表面13。該二切風面144係分別相連於該第一輔助面141、該第二輔助面142與該相鄰面143的兩側位置。透過前述輔助塊14的立體結構特徵，可以在氣流流經輔助器1時，產生渦流進而達到擾流的目的及效果。As shown in the fifth figure, the auxiliary device 1 of the present invention is installed at the position where the thickness of the blade 2 is maximum, and is located on the surface of the suction side 21 of the blade 2. As shown in the first figure, the two auxiliary blocks 14 have an adjacent surface 143 connecting one of the first auxiliary surface 141 and the second auxiliary surface 142, and the two auxiliary blocks 14 have two opposite wind cutting surfaces 144 and are connected于此vious exposed surface 13. The two tangent wind surfaces 144 are connected to the first auxiliary surface 141, the second auxiliary surface 142 and the adjacent surface 143 respectively. Through the aforementioned three-dimensional structural characteristics of the auxiliary block 14, when the airflow passes through the auxiliary device 1, a vortex can be generated to achieve the purpose and effect of turbulence.

值得一提的是，本創作輔助塊14的第一輔助面141係朝向葉片2前緣22方向，而第二輔助面142係朝向葉片2的後緣23方向，如第五圖所示。而相鄰面143則是位於輔助塊14中相距葉片2吸力側21表面最大距離位置。該第一輔助面141與外露表面13之間的偏角角度X為20˚，如第二圖所示。It is worth mentioning that the first auxiliary surface 141 of the creative auxiliary block 14 is oriented toward the leading edge 22 of the blade 2, and the second auxiliary surface 142 is oriented toward the trailing edge 23 of the blade 2, as shown in the fifth figure. The adjacent surface 143 is located at the maximum distance from the surface of the suction side 21 of the blade 2 in the auxiliary block 14. The declination angle X between the first auxiliary surface 141 and the exposed surface 13 is 20˚, as shown in the second figure.

關於輔助器1的安裝在葉片2的吸力側21位置，透過葉片2的設計圖量測出最厚點的方式確定理論安裝位置，同時考量安裝的便捷性，每隔1公尺設立安裝點，測量理論安裝位置到葉片2的後緣距離。Regarding the installation of the auxiliary device 1 on the suction side 21 of the blade 2, the theoretical installation position is determined by measuring the thickest point through the design drawing of the blade 2, and considering the convenience of installation, the installation point is established every 1 meter. Measure the distance from the theoretical installation position to the trailing edge of the blade 2.

1.將距離葉片2根部24有3公尺至25公尺的區域內所有理論安裝點連呈直線，並加以標記理論輔助器安裝位置線。1. Connect all the theoretical installation points in the area from 3 meters to 25 meters away from the root 24 of the blade 2 in a straight line, and mark the installation position line of the theoretical auxiliary device.

2.由於葉片2的吸力側21有一定的弧度，為了輔助器的底座11更好的貼合在吸力側21，該底座11的固定面12係對應葉片2表面呈弧形狀，又該底座11長度設定為0.5公尺。2. Since the suction side 21 of the blade 2 has a certain curvature, in order to better fit the base 11 of the auxiliary device on the suction side 21, the fixing surface 12 of the base 11 corresponds to the surface of the blade 2 in an arc shape, and the base 11 The length is set to 0.5 meters.

關於本創作輔助器1安裝於葉片2的吸力側21主要有該底座11的固定面12與該葉片2吸力側21表面之間設有一膠合層3，由該膠合層3的相對兩側將底座11膠合固定於葉片2，如第六圖所示。或進一步包括有一鉚接組(圖中未繪製)固定該底座11於該葉片2表面。Regarding the creation aid 1 installed on the suction side 21 of the blade 2, there is a glue layer 3 between the fixing surface 12 of the base 11 and the surface of the suction side 21 of the blade 2, the base is formed by the opposite sides of the glue layer 3 11 glued to the blade 2, as shown in the sixth figure. Or further include a riveting set (not shown in the figure) fixing the base 11 to the surface of the blade 2.

複數個輔助器1連結安裝位於葉片2上，並距離葉片2根部24有3公尺至25公尺之間。或是以一整個長條帶狀金屬板材，經過沖壓技術後經翻折出數個輔助塊14，如第七圖所示。A plurality of auxiliary devices 1 are connected and installed on the blade 2 and are between 3 meters and 25 meters from the root 24 of the blade 2. Or a whole long strip of metal sheet, after punching technology, several auxiliary blocks 14 are folded out, as shown in the seventh figure.

1‧‧‧輔助器 11‧‧‧底座 12‧‧‧固定面 13‧‧‧外露表面 14‧‧‧輔助塊 141‧‧‧第一輔助面 142‧‧‧第二輔助面 143‧‧‧相鄰面 144‧‧‧切風面 2‧‧‧葉片 21‧‧‧吸力側 22‧‧‧前緣 23‧‧‧後緣 24‧‧‧根部 3‧‧‧膠合層 1‧‧‧Auxiliary 11‧‧‧Base 12‧‧‧Fixed surface 13‧‧‧ exposed surface 14‧‧‧ auxiliary block 141‧‧‧The first auxiliary surface 142‧‧‧Second auxiliary surface 143‧‧‧adjacent face 144‧‧‧cut wind face 2‧‧‧blade 21‧‧‧Suction side 22‧‧‧ leading edge 23‧‧‧back edge 24‧‧‧Root 3‧‧‧Glue layer

第一圖係本創作輔助器立體示意圖。The first picture is a three-dimensional schematic diagram of the authoring assistant.

第二圖係本創作輔助器俯視圖。The second picture is a top view of the authoring assistant.

第三圖係本創作數個輔助器結合於葉片示意圖。The third picture is a schematic diagram of the creation of several auxiliary devices combined with the blade.

第四圖係本創作輔助器結合於葉片示意圖。The fourth picture is a schematic diagram of the authoring assistant combined with the blade.

第五圖係本創作剖面示意圖。The fifth picture is a schematic diagram of this creation.

第六圖係第五圖放大示意圖。The sixth diagram is an enlarged schematic diagram of the fifth diagram.

第七圖為本創作輔助器呈帶狀型態示意圖。The seventh picture is a schematic diagram of the creation assistant in a strip shape.

1‧‧‧輔助器 1‧‧‧Auxiliary

11‧‧‧底座 11‧‧‧Base

12‧‧‧固定面 12‧‧‧Fixed surface

13‧‧‧外露表面 13‧‧‧ exposed surface

14‧‧‧輔助塊 14‧‧‧ auxiliary block

141‧‧‧第一輔助面 141‧‧‧The first auxiliary surface

142‧‧‧第二輔助面 142‧‧‧Second auxiliary surface

143‧‧‧相鄰面 143‧‧‧adjacent face

144‧‧‧切風面 144‧‧‧cut wind face

Claims (9)

一種用於水平軸風力發電機葉片之輔助器，其包括： 一底座，具有彼此相對一固定面與一外露表面，該固定面固設於葉片吸力側表面且位於葉片厚度最大位置； 以及二輔助塊，其兩者呈非平行固設於該底座的外露表面，且該二輔助塊具有一第一輔助面、一第二輔助面，又該第一輔助面與該第二輔助面分別以一端相連於該外露表面；以該輔助器於葉片的吸力側產生紊流而提升葉片升力。 Auxiliary device for horizontal axis wind turbine blades, including: A base with a fixed surface and an exposed surface opposite to each other, the fixed surface is fixed on the suction side surface of the blade and is located at the position where the blade has the largest thickness; And two auxiliary blocks, both of which are non-parallel fixed to the exposed surface of the base, and the two auxiliary blocks have a first auxiliary surface, a second auxiliary surface, and the first auxiliary surface and the second auxiliary surface One end is connected to the exposed surface at one end; the auxiliary device generates turbulent flow on the suction side of the blade to increase the lift of the blade. 如請求項1所述之水平軸風力發電機葉片之輔助器，其中該二輔助塊具有連接該第一輔助面與該第二輔助面之一相鄰面，又該二輔助塊具有相對之二切風面並相連於該外露表面。The auxiliary device of the horizontal-axis wind turbine blade according to claim 1, wherein the two auxiliary blocks have an adjacent surface connecting the first auxiliary surface and the second auxiliary surface, and the two auxiliary blocks have opposite two Cut the wind and connect to the exposed surface. 如請求項2所述之水平軸風力發電機葉片之輔助器，其中該二切風面係分別相連於該第一輔助面、該第二輔助面與該相鄰面的兩側位置。The auxiliary device of the horizontal-axis wind turbine blade according to claim 2, wherein the two tangential wind surfaces are respectively connected to the first auxiliary surface, the second auxiliary surface, and the two sides of the adjacent surface. 如請求項1所述之水平軸風力發電機葉片之輔助器，其中該底座的固定面係對應葉片表面呈弧形狀。The auxiliary device of the horizontal axis wind turbine blade according to claim 1, wherein the fixed surface of the base corresponds to the blade surface in an arc shape. 如請求項1至請求項4中任一項所述之水平軸風力發電機葉片之輔助器，其中該底座的固定面與該葉片表面之間設有一膠合層，由該膠合層的相對兩側將底座膠合固定於葉片。The auxiliary device of the horizontal-axis wind turbine blade according to any one of claim 1 to claim 4, wherein a glue layer is provided between the fixing surface of the base and the surface of the blade, and is formed by opposite sides of the glue layer Glue the base to the blade. 如請求項1至請求項4中任一項所述之水平軸風力發電機葉片之輔助器，進一步包括有一鉚接組固定該底座於該葉片表面。The auxiliary device of the horizontal-axis wind turbine blade according to any one of claim 1 to claim 4, further comprising a riveting set to fix the base to the surface of the blade. 如請求項1所述之水平軸風力發電機葉片之輔助器，其中複數個輔助器連結安裝位於葉片上，並距離葉片根部3公尺至25公尺之間。The auxiliary device of the horizontal-axis wind turbine blade according to claim 1, wherein a plurality of auxiliary devices are connected and installed on the blade and are between 3 meters and 25 meters from the root of the blade. 如請求項1所述之水平軸風力發電機葉片之輔助器，其中該輔助器的材質可由鋁合金、不鏽鋼或塑膠材質所製作。The auxiliary device of the horizontal axis wind turbine blade according to claim 1, wherein the auxiliary device is made of aluminum alloy, stainless steel or plastic material. 如請求項1所述之水平軸風力發電機葉片之輔助器，其中該輔助塊相對外露表面之偏角角度為20˚。The auxiliary device of the horizontal axis wind turbine blade as described in claim 1, wherein the auxiliary block has an off angle of 20˚ with respect to the exposed surface.
TW108210567U 2019-08-09 2019-08-09 Auxiliary device for horizontal axis wind turbine blade TWM588736U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112539128A (en) * 2020-11-09 2021-03-23 中国海洋大学 Blade assembly for tidal current energy power generation and tidal current energy water turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112539128A (en) * 2020-11-09 2021-03-23 中国海洋大学 Blade assembly for tidal current energy power generation and tidal current energy water turbine

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