CN104454358B - The horizontal axis wind turbine having a strong anti-wind function and method of use - Google Patents

The horizontal axis wind turbine having a strong anti-wind function and method of use Download PDF

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Publication number
CN104454358B
CN104454358B CN 201410633846 CN201410633846A CN104454358B CN 104454358 B CN104454358 B CN 104454358B CN 201410633846 CN201410633846 CN 201410633846 CN 201410633846 A CN201410633846 A CN 201410633846A CN 104454358 B CN104454358 B CN 104454358B
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blade
hub
fixed
fixing means
gear
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CN 201410633846
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Chinese (zh)
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CN104454358A (en )
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柯世堂
曹九发
王同光
吴永健
梁俊
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南京航空航天大学
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    • 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
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • Y02E10/721Blades or rotors
    • 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
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • Y02E10/723Control of turbines

Abstract

本发明公开了一种具有抗强风功能的水平轴风力机及其使用方法,该装置包括塔架,塔架上设置有发电机机舱,发电机机舱前端配合有导流罩,导流罩内设有与发电机传动连接的轮毂,轮毂上固定有数个叶片,其中:轮毂包括有一个套设在轮毂主体上并能相对于轮毂主体轴向滑动、周向转动的叶片固定装置,数个叶片的其中一个或几个固定在叶片固定装置上,风速长期大于额定风速或者台风来时,叶片固定装置先轴向滑动使叶片固定装置上的叶片与其他叶片前后错开,然后周向转动使叶片固定装置上的叶片与其他叶片轴向重叠。 The present invention discloses a horizontal axis wind turbine and method of use having a strong anti-wind function, the apparatus includes a tower, a nacelle tower a generator, the generator nacelle have complex distal shroud, shroud site with wheels connected to the generator gear hub, holds a plurality of blades on the hub, wherein: the hub includes a sleeve provided on the hub body and capable of sliding of the hub body axially with respect to the circumferential vane fixing means for rotating, a plurality of blades wherein one or several fixing means is fixed to the blade, the wind speed is greater than rated wind speed or long typhoons, the blade fixing means to slide axially of the blade on the blade fixture offset from the other longitudinal blade, the blade is then rotated in the circumferential fixing means overlap with other blades on the axial blade. 本发明具有叶片能展开或收起、有效减少风载荷、阻止风力机的叶片和结构部件被台风破坏、提高风力机寿命的优点。 The present invention has the blade can expand or collapse, reduce wind load, preventing wind turbine blades and structural parts are broken typhoon, the advantage of improving the life of the wind turbine.

Description

一种具有抗强风功能的水平轴风力机及其使用方法 The horizontal axis wind turbine having a strong anti-wind function and method of use

技术领域 FIELD

[0001] 本发明涉及风力发电领域的技术领域,尤其涉及一种具有抗强风功能的水平轴风力机及其使用方法。 [0001] The present invention relates to the field of wind power generation technology, and particularly relates to a strong anti-wind function horizontal-axis wind turbine and method of use.

背景技术 Background technique

[0002] 针对海上水平轴风力机的抗台风设计,国内外学者对进行了不少的研宄工作,如增加塔架结构强度、提高风力机的振动阻尼、变桨和偏航系统的改善。 [0002] for a horizontal axis wind turbine design marine anti-typhoon, we perform scholars study based on a lot of work, such as increasing the structural strength of the tower, the wind turbine to improve vibration damping, improved pitch and yaw system. 对于现在海上风力机的抗台风设计,出现的方法比较多,但是基本是被动增加风力机的结构强度,或者增加结构阻尼等,对于变桨偏航等措施都具有很强极限性。 For now anti-typhoon offshore wind turbine design, methodology appears more, but basically passive increase the structural strength of the wind machine, or to increase the structural damping for pitch yaw and other measures are highly LIMIT. 然而,对于台风的风速具有风速大,风速方向变化等特点,常见的方法不仅会增加成本,而且同时很快会出现极限性,即风力机结构很容易被强台风破坏。 However, for a large typhoon wind speed wind speed, direction changes in wind speed and other characteristics, common approach will not only increase costs, but will soon appear at the same time limit, ie wind turbine structure is easily broken strong typhoon.

发明内容 SUMMARY

[0003] 本发明所要解决的技术问题是针对上述技术现状,而提供一种叶片能展开或收起、有效减少风载荷、阻止风力机的叶片和结构部件被台风破坏、提高风力机寿命的具有抗强风功能的水平轴风力机及其使用方法。 [0003] The present invention solves the technical problem of the current situation the techniques described above and to provide a blade capable to expand or collapse, reduce wind load, preventing wind turbine blades and structural parts are broken typhoon, improving the life of the wind turbine having strong anti-wind function horizontal axis wind turbine and method of use.

[0004] 本发明解决上述技术问题所采用的技术方案为: [0004] aspect of the present invention to solve the above technical problem is:

[0005] 一种具有抗强风功能的水平轴风力机,包括塔架,塔架上设置有发电机机舱,发电机机舱前端配合有导流罩,导流罩内设有与发电机传动连接的轮毂,轮毂上固定有数个叶片,其中:轮威包括有一个套设在轮威主体上并能相对于轮穀主体轴向滑动、周向转动的叶片固定装置,数个叶片的其中一个或几个固定在叶片固定装置上,风速长期大于额定风速或者台风来时,叶片固定装置先轴向滑动使叶片固定装置上的叶片与其他叶片前后错开, 然后周向转动使叶片固定装置上的叶片与其他叶片轴向重叠。 [0005] A function having a strong anti-wind horizontal axis wind turbine, comprising a generator disposed on the tower a nacelle, a tower, a nacelle generator has a front end with the shroud, the shroud equipped with a drive connection to the generator hub, holds a plurality of blades on the hub, wherein: the wheel K includes a sleeve provided on the wheel K body and relative to the wheel trough body to slide axially, wherein a circumferential blade fixing apparatus is rotated, a number of blades or several fixed to the blade fixing means, the wind speed is greater than rated wind speed or long typhoons, the blade fixing means to slide axially of the blade on the blade fixture offset from the other longitudinal blades and the circumferential rotation of the blade and the blade fixing means other blades axially overlapping.

[0006] 为优化上述技术方案,采取的具体措施还包括: [0006] In order to optimize the technical proposal, specific measures also include:

[0007] 上述的轮毂上固定有两个叶片,为活动叶片和固定叶片,活动叶片固定在叶片固定装置上,固定叶片与轮毂主体固定配合,活动叶片和固定叶片轴向重叠时,活动叶片和固定叶片均处于垂直向下的状态。 When the [0007] fixed to two blades on said hub for moving blades and fixed blades, the movable blade fixed to the blade fixing means, the fixed blade and the hub body is fixed with, moving blades and stationary blades axially overlapping, moving blades and fixed blades are in vertical downward state.

[0008] 上述的叶片固定装置上固定有第一固定块,第一固定块上连接有轴向齿轮,轮毂主体上设置有轴向延伸的轴齿跑道,轴向齿轮与轴齿跑道咬合配合;叶片固定装置上固定有第二固定块,第二固定块上连接有周向齿轮,轮毂主体的前端设置有与轮毂主体同轴设置的轮毂齿轮,叶片固定装置与轮毂主体的前端具有一段距离,使得当轴向齿轮没有位移至轴齿跑道前端时,周向齿轮与轮毂齿轮间隙配合,当轴向齿轮位移至轴齿跑道前端时,叶片固定装置在轴向齿轮的带动下位移至轮毂主体的前端,使周向齿轮与轮毂齿轮咬合配合。 [0008] a first fixed block is fixed to said fixed blade means, connected to the axial gear is provided, axially extending hub body pinion runways, axially with the pinion gear engaging with the first fixed track block; is fixed to a second fixing block the blade fixing means, connected to the second fixing block circumference of the hub body to the gear wheel tip end provided with a hub body coaxially arranged hub gears, the front end of the blade fixing means and the hub body having a distance, such that when the gear is not axially displaced to the front end of the runway and pinion, gear hub and the circumferential clearance fit to the gear, when the axial shaft gear teeth displaced to the front end of the runway, the blade means fixing the axial position driven gear is moved to the hub body the front end of the circumferential snap-fit ​​to the gear hub and the gear.

[0009] 上述的叶片固定装置的中部设置有叶片固定腔,活动叶片插入叶片固定腔中与叶片固定装置固定连接。 Arranged in the middle [0009] The fixed blade has a blade retaining means cavity, the movable vane fixing the vane cavity insert is fixedly connected with the blade fixture.

[0010] 上述的导流罩上设置有可开合的上盖板和侧盖板,上盖板和侧盖板均位于活动叶片折叠至固定叶片前端的行程上。 [0010] The cover is provided with a guide opening and closing the upper cover plate and the side cover, the cover and the side cover are located on the moving blades travel to a stationary folding blade tip.

[0011] 上述的轮毂主体包括有固定叶片连接器,固定叶片连接器与轮毂主体固定连接, 固定叶片连接器中部设置有固定叶片连接孔,固定叶片插入固定叶片连接孔中并与固定叶片连接器固定连接。 [0011] The hub body comprises a fixed blade connection, fixed blades are connected with the hub body fixedly connected to the stationary blade arranged in the middle connection has a fixed blade connection holes, fixed blades inserted into the fixing blade connection hole and the stationary blade connector fixed connection.

[0012] 上述的叶片固定装置上设置有用于防止叶片固定装置过量位移的轴向限位块和周向限位块。 [0012] the blade is provided on said fixing means has fixing means for preventing excessive displacement of the blade stopper axial and circumferential stopper.

[0013] 一种抗台风功能的水平轴风力机的使用方法,包括以下步骤: [0013] A method for using an anti-wind function horizontal axis wind turbine, comprising the steps of:

[0014] 步骤一、当收到风速长期大于额定风速时或者台风的预警时,水平轴风力机停机; 变桨使得叶片平行于轮毂主体的周面; [0014] Step a, when receiving wind speed greater than the rated wind speed or when long typhoon warning, the horizontal axis wind turbine shutdown; pitch so that the blade is parallel to the circumferential surface of the hub body;

[0015] 步骤二、推动叶片固定装置,方向为向轮毂主体的前端,使轴向齿轮在轴齿跑道滚动,带动叶片固定装置轴向运动靠近轮毂齿轮; [0015] Step two, pushing the blade fixing means, the direction of the front end of the wheel hub body, in the axial pinion gear rolling track, axial movement of drive vane fixing means near the hub gear;

[0016] 步骤三、当轴向齿轮滚动到轴齿跑道的尽头,叶片固定装置上的周向齿轮的轮齿与轮毂齿轮的轮齿交错咬合; [0016] Step three, when the axial roller gear teeth to the periphery of the pinion end of the runway, the blade means fixing the hub to the gear teeth engaging with gear teeth staggered;

[0017] 步骤四、周向旋转叶片固定装置,使周向齿轮绕着轮毂齿轮转动,带动叶片固定装置沿着轮毂主体周向转动,直至活动叶片转动到与固定叶片轴向重叠; [0017] Step four, circumferentially rotating blade fixing means, so that around the circumference of hub gears to the gear, vane fixing means driven along the circumferential direction of the hub body is rotated until the moving blades rotate to axially overlap with the fixed vanes;

[0018] 步骤五、台风过后,反向操作上述步骤,将水平轴风力机的叶片展开。 [0018] Step 5 typhoon, the reverse operation of the above steps, the horizontal axis wind turbine blade deployment.

[0019] 步骤一与步骤二之间还设有打开导流罩的上盖板和侧盖板的步骤;步骤四与步骤五之间还设有闭合导流罩的上盖板和侧盖板的步骤。 [0019] Step a further step is provided with the step of opening the upper cover and the side cover between the two shroud; shroud further provided with a closing upper cover and the side cover step between steps four and five A step of.

[0020] 步骤二中推动叶片固定装置时,叶片固定装置位于轮毂主体上方,相应地,活动叶片也位于轮毂主体上方,步骤四中活动叶片转动到与固定叶片轴向重叠时,叶片固定装置位于轮毂主体下方,相应地,活动叶片也位于轮毂主体下方。 When [0020] Step II pushing the blade fixing means, vane fixing means of the hub above the main wheel, respectively, the movable blade is also located above the hub body, Step Activity Four blades is rotated to overlap with the axially fixed blades which fixing means is located below the hub body, respectively, it is also located below the moving blades of the hub body.

[0021] 与现有技术相比,本发明提供了一种具有抗台风功能的改进型水平轴风力机。 [0021] Compared with the prior art, the present invention provides an improved horizontal axis wind turbine having an anti-wind function. 本发明的轮毂包括有一个套设在轮毂主体上并能相对于轮毂主体轴向滑动、周向转动的叶片固定装置,数个叶片的其中一个或几个固定在叶片固定装置上,台风来时,叶片固定装置先轴向滑动使叶片固定装置上的叶片与其他叶片前后错开,然后周向转动使叶片固定装置上的叶片与其他叶片轴向重叠。 The hub of the present invention comprises a sleeve provided on the hub body and capable of sliding of the hub body axially with respect to, wherein when the circumferential blade fixing apparatus is rotated, a number of blades, one or several fixed on the blade fixing means, a typhoon blade fixing means to slide axially on the blade of the blade means fixing the front-rear offset other blade, and circumferential rotation of the blade on the blade fixing means axially overlap with other blade. 这种设计,使得风力机风轮叶片具有能处于重叠状态的功能, 有效减少了叶片受到风载荷的面积,并且塔架受到的风载荷也有一定减少,风力机可以很大程度达到抵抗台风效果。 This design, so that the wind turbine rotor blade having a function capable of overlapping state, effectively reduces the area of ​​the blade by the wind load and wind load by the tower there is a certain reduction in the extent that the wind turbine can be large typhoon resistant effect. 进一步地,展开时,活动叶片也位于轮毂主体上方,而折叠时,活动叶片也位于轮毂主体下方,使得叶片所处的高度变低,根据风剪切原理,风力机叶片受到的风速也减小。 Further, when deployed, above the moving blades but also the body of the hub wheel, and when folded, is also located below the moving blades of the hub body, such that the low height of the blade is located, according to the principles of wind shear, wind turbine blades are also subjected to reduced wind speed . 本发明应用范围较广,可以使用用陆地和海上风力机,特别对于海上风力机抗台风时,可以通过本发明的具有抗强风功能的水平轴风力机方式,很大程度减少风力机受到的风载荷,为阻止风力机的叶片和结构部件被破坏,以及提高风力机的寿命具有重要意义。 A wide range of applications of the present invention may be used with onshore and offshore wind turbine, especially offshore wind turbine respect to the anti-typhoon, strong wind can have anti-horizontal-axis wind turbine functions embodiment of the present invention, the wind turbine by reducing the degree windy load, to prevent wind turbine blades and the structural member is broken, as well as increase the lifetime of a wind turbine is important.

附图说明 BRIEF DESCRIPTION

[0022]图1为本发明的具有抗强风功能的水平轴风力机正常工作时的结构示意图; Schematic structural view of the strong anti-wind function having a horizontal axis wind turbine [0022] FIG. 1 of the present invention is working properly;

[0023]图2为本发明的具有抗强风功能的水平轴风力机叶片收起抗风时的结构示意图; [0024]图3为本发明的导流罩打开时的结构示意图; LU025J图4为本发明的风力机正常运行时轮毂的结构示意图; [0023] Collapse schematic structural view of a horizontal axis wind turbine blade wind having strong anti-wind function of the present invention. FIG. 2; [0024] shroud schematic structural view of the present invention FIG 3 is opened; LU025J Figure 4 hub structural diagram of the wind turbine during normal operation of the present invention;

[0026] 图5为本发明的风力机叶片收起时轮毂的结构示意图; Schematic structural view of the hub of the wind turbine blade Collapse [0026] FIG. 5 of the present invention;

[0027] 图6为本发明的风力机叶片固定装置的结构示意图; [0027] FIG. 6 is a schematic structural wind turbine blade of the fixing device of the present invention;

[0028] 图7为展开与叶片收起的前面来流叶片风荷载对比图; [0028] FIG. 7 is expanded to the front of the blade away vanes wind load comparison chart;

[0029] 图8为展开与叶片收起的后面来流叶片上风荷载对比图; [0029] FIG. 8 is expanded to hide behind the blade vanes windward load comparison chart;

[0030]图9为前后来流工况的展开和收起时的叶根弯矩对比图; [0030] FIG. 9 is a comparison of the blade root bending moment later flow front view of the deployed and stowed conditions;

[0031]图为前后来流工况的展开和收起时的风轮对塔底弯矩对比图。 [0031] Later, the flow conditions during deployment and stowage of the rotor bottoms moment before comparison graph of FIG.

具体实施方式 Detailed ways

[0032]以下结合附图对本发明的实施例作进一步详细描述。 [0032] The following embodiments in conjunction with the accompanying drawings of embodiments of the present invention will be described in further detail.

[0033]图1至图10所示为本发明的示意图。 Schematic [0033] Figures 1 to 10 of the present invention.

[0034] 其中的附图标记为:塔架i、发电机机舱2、导流罩3、上盖板31、侧盖板32、轮穀4、轮毂主体41、叶片固定装置42、叶片固定腔42a、第一固定块43、轴向齿轮44、轴齿跑道4 5、第二固定块46、周向齿轮47、轮毂齿轮48、固定叶片连接器49、固定叶片连接孔49a、叶片5、活动叶片51、固定叶片52。 [0034] wherein reference numerals as: a tower i, the generator nacelle 2, the shroud 3, the cover plate 31, the side cover 32, the valley wheel 4, the hub body 41, the fixed blade 42, the fixed blade chamber 42a, a first fixing block 43, the axial gear 44, pinion runway 45, a second fixing block 46, the circumferential gear 47, the gear wheel 48, stationary blade 49 is connected, the fixed blade connection hole 49a, the blade 5, activity blades 51, fixed blades 52.

[0035] 本发明的一种具有抗强风功能的水平轴风力机,包括塔架1,塔架1上设置有发电机机舱2,发电机机舱2前端配合有导流罩3,导流罩3内设有与发电机传动连接的轮毂4,轮毂4上固定有数个叶片5,其中:轮毂4包括有一个套设在轮毂主体41上并能相对于轮毂主体41轴向滑动、周向转动的叶片固定装置42,数个叶片5的其中一个或几个固定在叶片固定装置42上,风速长期大于额定风速或者台风来时,叶片固定装置42先轴向滑动使叶片固定装置42上的叶片5与其他叶片5前后错开,然后周向转动使叶片固定装置42上的叶片5与其他叶片5轴向重叠。 [0035] A according to the present invention have strong anti-wind function of the horizontal axis wind turbine, comprising a tower 1, a nacelle 2 is provided with a generator, the generator 2 the nacelle 3 front end fitted with a shroud, the shroud 3 of the tower 1 equipped with a wheel connected to a generator drive hub 4, the hub 4 holds a plurality of blades 5, wherein: the hub 4 includes a sleeve disposed on the hub body 41 and can slide axially of the hub body 41 with respect to the circumferential direction of rotation 42, a plurality of blades wherein the blade means fixing one or more fixing means is fixed to the blade 42, the wind speed is greater than rated wind speed or long typhoons, the fastening means 42 to axially slide the blade means fixing the blades 42 of the blade 55 other offset front and rear blade 5 and the blade rotated in the circumferential fixing means 5 on a blade 42 overlap with another blade 5 axially.

[0036]实施例中,轮毂4上固定有两个叶片5,为活动叶片51和固定叶片52,活动叶片51固定在叶片固定装置42上,固定叶片52与轮毂主体41固定配合,活动叶片51和固定叶片52轴向重叠时,活动叶片51和固定叶片52均处于垂直向下的状态。 [0036] The blade 51 is fixed to the blade fixing means 42, stationary blades 52 and the hub body 41 is fixed with the movable leaf 51 embodiment, the hub is fixed with two blades 5 4 for moving blades 51 and stationary vanes 52, the movable when the stationary blade 52 and axially overlapping, moving blades 51 and stationary blades 52 are in a vertically downward state.

[0037]实施例中,叶片固定装置42上固定有第一固定块43,第一固定块43上连接有轴向齿轮44,轮毂主体41上设置有轴向延伸的轴齿跑道45,轴向齿轮44与轴齿跑道45咬合配合; 叶片固定装置42上固定有第二固定块4 6,第二固定块妨上连接有周向齿轮47,轮毂主体紅的前端设置有与轮毂主体41同轴设置的轮毂齿轮48,叶片固定装置42与轮毂主体41的前端具有一段距离,使得当轴向齿轮44没有位移至轴齿跑道45前端时,周向齿轮47与轮毂齿轮48间隙配合,当轴向齿轮44位移至轴齿跑道45前端时,叶片固定装置42在轴向齿轮44的带动下位移至轮毂主体41的前端,使周向齿轮47与轮毂齿轮48咬合配合。 [0037] Example embodiments, the first fixing block 43 fixed to the blade fixing means 42, gear 43 is connected to a first axial fixing block 44 is provided with a shaft axially extending toothed track 45 on the hub body 41, the axial with the pinion gear 44 engaging with the track 45; a second fixed block 46 is fixed on the blade retaining device 42 is connected with the circumferential gear 47 to the hub body, the hub body 41 disposed coaxially red on the front end of the second fixing block nuisance the hub gear set 48, the blade fixture 42 and the distal end of the hub body 41 has a distance such that when the axial gear 44 is not when moving 45 the front end of pinion track, circumferential mating bits to 48 gap gear 47 and the hub gear, when the axial gear 44 teeth when the tip end shaft 45 moves to the runway, the fixed blade means 42 axially driven gear 44 to move the distal end of the hub body 41, and the periphery of the hub gear 48 engaging with the gear 47.

[0038]实施例中,叶片固定装置42的中部设置有叶片固定腔4也,活动叶片51插入叶片固定腔42a中与叶片固定装置42固定连接。 [0038] In an embodiment, the blade 42 of the securing means is provided with a central chamber 4 is also fixed blade, the movable blade 51 is inserted into cavity 42a fixed blade 42 is fixedly connected with the blade fixture.

[0039]实施例中,导流罩3上设置有可开合的上盖板31和侧盖板32,上盖板31和侧盖板32 均位于活动叶片51折叠至固定叶片52前端的行程上。 Stroke [0039] embodiment, there is provided a retractable upper lid 3 on the shroud 31 and the side cover 32, the cover plate 31 and the side cover 32 are located on the movable vane 51 is folded to the front end of the fixed blade 52 on.

[0040] 实施例中,轮毂主体41包括有固定叶片连接器49,固定叶片连接器49与轮毂主体41固定连接,固定叶片连接器49中郃设置有固定叶片连接孔49a,固定叶片52插入固定叶片连接孔49a中并与固定叶片连接器49固定连接。 [0040] embodiment, the hub body 41 comprises a fixed blade connection 49, the stationary blade connector 4941 is fixedly connected to the hub body, the fixed blade connectors 49-he is provided with a fixed blade connection hole 49a, the fixed blade 52 is inserted into the fixed the blade connecting hole 49a and the fixed blade 49 is fixedly connected to the connector.

[0041]实施例中,叶片固定装置42上设置有用于防止叶片固定装置42过量位移的轴向限位块和周向限位块。 [0041] embodiment, the blade 42 is provided on the fixing means for preventing excessive axial displacement of the stopper 42 and the circumferential blade fixture stopper.

[0042] 一种抗台风功能的水平轴风力机的使用方法,包括以下步骤: [0042] The use of an anti-wind function horizontal axis wind turbine, comprising the steps of:

[0043] 步骤一、当收到风速长期大于额定风速时或者台风的预警时,水平轴风力机停机; 变桨使得叶片5平行于轮毂主体41的周面;保证叶片固定装置42位于轮毂主体41上方,相应地,活动叶片51也位于轮毂主体41上方,打开导流罩3的上盖板31和侧盖板32, [0043] Step a, when receiving Winds long greater than the rated wind speed or when warning typhoon, horizontal-axis wind turbine shutdown; pitch so that the blade 5 is parallel to the hub body peripheral surface 41; of blade fixing means 42 of the hub body 41 above, respectively, the movable blade 51 is positioned above the hub body 41, open the upper cover 31 of the shroud 32 and the side cover,

[0044] 步骤二、推动叶片固定装置42,方向为向轮毂主体41的前端,使轴向齿轮44在轴齿跑道45滚动,带动叶片固定装置42轴向运动靠近轮毂齿轮48; [0044] Step two, pushing the blade fixture 42, the distal end direction of the hub body 41 to the wheel, so that the axial pinion gear 44 in rolling track 45, driven by the axial movement of the blade fixture 42 near the hub gear 48;

[0045]步骤三、当轴向齿轮44滚动到轴齿跑道45的尽头,叶片固定装置42上的周向齿轮47的轮齿与轮毂齿轮48的轮齿交错咬合; [0045] Step three, when the axial end of the gear shaft 44 to scroll to the tooth track 45, 42 on the periphery of the blade means fixing the hub to the gear teeth 48 with the teeth of the wheel gear 47 engaging staggered;

[0046]步骤四、周向旋转叶片固定装置似,使周向齿轮47绕着轮毂齿轮48转动,带动叶片固定装置42沿着轮毂主体41周向转动,直至活动叶片51转动到与固定叶片52轴向重叠;叶片固定装置42位于轮毂主体41下方,相应地,活动叶片51也位于轮毂主体41下方。 [0046] Step four, circumferential like to the rotary blade fixing means, that the circumference of the hub to the gear 47 around the wheel 48 rotating gear to drive the blade fixing means 42 41 circumferentially rotated along the hub body, until the moving blades 51 is rotated to the fixed blade 52 axially overlapping; fixing means 42 is located below the blade hub body 41, respectively, are also located below the moving blades 51 of the hub body 41. 闭合导流罩3的上盖板31和侧盖板32。 Closing the cover plate 3 on the shroud 31 and the side cover 32.

[0047] 步骤五、台风过后,反向操作上述步骤,将水平轴风力机的叶片5展开。 [0047] Step 5 typhoon, the reverse operation of the above steps, the horizontal axis wind turbine blade 5 deployment.

[0048] 当叶片都处于收起垂直向下的状态时,对于风力机遇到台风时,具有很大的保护作用,主要体现两方面:第一,风力机的受风面积减小,减少风力机受到的风载荷,不管来流从前面吹来还是从后面吹来,都可以达到很好的减载效果;第二,上叶片的变为垂直向下收起状态,使得风力机叶片的风剪切效应减弱,从而疲劳载荷和极限载荷都会减弱。 [0048] When the vanes are in the stowed vertically downward state, the opportunity for the wind to typhoon, with a significant protective effect, mainly two aspects: the first area of ​​the wind, the wind turbine is reduced, reducing the wind turbine by the wind load, regardless of the incoming flow blowing from the front or from the back blowing, can achieve very good results deload; second, the blade becomes vertically downwardly retracted state, so that the wind turbine blade wind shear cutting effect of weakening, so that the fatigue and ultimate load will weaken. 这些对于风力机的结构保护具有重要的作用。 These structures play an important role for the protection of a wind turbine.

[0049]本发明以某5MW的风力机为例,塔架高度为126m,风轮半径为60m,来流风速取40m/ s。 [0049] In the present invention, an example of a 5MW wind turbine, tower height of 126m, the rotor radius of 60m, take the wind velocity 40m / s. 进行了前后来流情况,通过CFD模拟的方法结合风荷载工程方法计算出叶片展开和收起两种状态的风力机载荷,其中包括叶片上法向风荷载、叶片叶根挥舞力矩和风轮对塔架底部弯曲力矩。 It was later flow front case, the calculated wind turbine blade extension and retraction of the load by means of two states CFD simulation wind loads binding engineering methods, wherein the method comprises the wind load to the blade, blade root and the rotor of the tower swinging moment bottom frame bending moment. 图7为前面来流工况,从图中可以看出展开和收起的叶片上法向风荷载分布情况(把叶片分为六段,1_ 6分别是叶尖到叶根),当来流从前方过来时,收起时的叶片风荷载比展开时的叶片法向风荷载都减小了,特别是对于下叶片的风荷载有着明显的降低。 FIG 7 is a flow condition to the foregoing, it can be seen from the figure the upper blade deployed and stowed normal wind load distribution (the blade is divided into six sections, 6 are 1_ tip to root), when the incoming flow when coming from the front of the blade when the wind load ratio vane stowed deployed when the wind load are reduced, particularly for the blades of wind load there is a clear decrease. 图8为后面来流工况,从图中可以看出收起的叶片风荷载都明显比展开的更加明显。 FIG 8 is a flow back to operating mode, can be seen from FIG retractable blade wind loads are significantly more pronounced than deployed. 如图9是前后来流两种工况下,风力机叶片展开和收起叶片的叶根载荷对比图,从图中可以得出收起后叶片风荷载明显减小,其中,前面来流工况,叶片1风荷载减小了2.3%,由于叶片1任然直接面对来流,但是叶片3处于叶片1后方,来流被挡住,因此叶片3风荷载减小了80.9%;对于后面来流工况,收起后叶片6和7风荷载减小更明显,分别是83.7%和63 • 2%。 Stream 9 is then first two conditions, the wind turbine blade to deploy and retract the blade root load comparison chart, the blade can be drawn from FIG significantly reduced wind load away after which the flow front to work conditions, a blade wind load is reduced by 2.3%, since the blade 1 and then directly to any incoming flow, but leaves behind the blade 3 is 1, the flow to be blocked, thus reducing the wind load blade 3 80.9%; for the latter to flow condition, the blades 6 and 7 away wind load is reduced more significant, were 83.7% and 63 • 2%. 图10是风轮对塔底的弯矩情况,前面和后面来流工况,收起后风轮对塔底的弯矩分别减小61%和78.3%。 FIG 10 is a case where the bending moment of the rotor of the bottom, front and back to the flow condition, the bending moment of the rotor away bottoms is reduced 61% and 78.3%, respectively.

[0050] 本发明具有很大应用前景,特别对于海上风力机,通过改进风力机风轮,使得风轮叶片具有收起的功能,可以很大程度的降低停机以后的风荷载,对于提高风力机的抗台风能力,同时保证风力机的结构不受破坏,提高风力机的使用寿命,具有重要意义。 [0050] The present invention has great prospects, especially for offshore wind turbine, wind wheel through improved wind turbine, the rotor blades having such features away, can reduce the wind load to a large extent after the stop, to improve wind turbine the ability of anti-typhoon, while ensuring that the structure of the wind turbine from damage, improve the life of the wind turbine is of great significance.

[0051]以上仅是本发明的优选实施方式,本发明的保护范围并不仅局限于上述实施例, 凡属于本发明思路下的技术方案均属于本发明的保护范围。 [0051] The above are only preferred embodiments of the present invention, the scope of the present invention is not limited to the above embodiments, where the aspect belonging to the idea of ​​the present invention belong to the scope of the present invention. 应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理前提下的若干改进和润饰,应视为本发明的保护范围。 It should be noted that those of ordinary skill in the art, in a number of improvements and modifications without departing from the principles of the present invention is provided, should be considered in the scope of the invention.

Claims (7)

1 •一种具有抗强风功能的水平轴风力机,包括塔架(1),所述的塔架(1)上设置有发电机机舱(2),所述的发电机机舱(2)前端配合有导流罩(3),所述的导流罩(3)内设有与发电机传动连接的轮毂⑷,所述的轮毂⑷上固定有数个叶片(5),其特征是:所述的轮毂⑷包括有一个套设在轮毂主体(41)上并能相对于轮毂主体(41)轴向滑动、周向转动的叶片固定装置(42),数个叶片(5)的其中一个或几个固定在所述的叶片固定装置(42)上,风速长期大于额定风速或者台风来时,所述的叶片固定装置(42)先轴向滑动使叶片固定装置(42)上的叶片(5)与其他叶片(5)前后错开,然后周向转动使叶片固定装置(42)上的叶片(5)与其他叶片(5)轴向重叠;所述的轮毂(4)上固定有两个叶片(5),为活动叶片(51)和固定叶片(52),所述的活动叶片(51)固定在叶片固定装置(42)上,所述的固定叶片(52)与轮毂 • having a strong anti-wind function of the horizontal axis wind turbine, comprising a tower (1), the tower (1) is provided with a generator on the nacelle (2), the generator nacelle (2) with a front end there shroud (3), said shroud (3) is provided with a hub connected to a generator drive ⑷, several stationary blades (5) on the hub ⑷, characterized in that: said the hub ⑷ comprises a sleeve provided on the hub body (41) and can (41) axially slidable with respect to the hub body, the circumferential blade fixing means for rotating (42), a plurality of blades (5) wherein one or several fixed to the blade fixing means (42) of the wind speed is greater than rated wind speed or long typhoons, the blade fixing means (42) said first axial sliding of the blade fixing means (42) of the blade (5) other blade (5) is shifted back and forth, the blade is then rotated in the circumferential securing means (42) the blades (5) on the other blade (5) axially overlapping; two fixed blades (5 on the hub (4) ), for the moving blades (51) and the fixed blade (52), said movable blade (51) fixed to the blade fixing means (42), said fixed vanes (52) and the hub 主体(41)固定配合,所述的活动叶片(51)和固定叶片(52)轴向重叠时,活动叶片(51)和固定叶片(52)均处于垂直向下的状态;所述的叶片固定装置(42)上固定有第一固定块(43),所述的第一固定块(43)上连接有轴向齿轮(44),所述的轮毂主体(41)上设置有轴向延伸的轴齿跑道(45),所述的轴向齿轮(44)与轴齿跑道(45)咬合配合;所述的叶片固定装置(42)上固定有第二固定块(46),所述的第二固定块(46)上连接有周向齿轮(47),所述的轮毂主体(41)的前端设置有与轮毂主体(41)同轴设置的轮毂齿轮(48),所述的叶片固定装置(42)与轮毂主体(41)的前端具有一段距离,使得当所述的轴向齿轮(44)没有位移至轴齿跑道(45) 前端时,所述的周向齿轮(47)与轮毂齿轮(48)间隙配合,当所述的轴向齿轮(44)位移至轴齿跑道(45)前端时,叶片固定装置(42)在轴向齿轮(44)的带动下位移至轮毂主体(41)的前端,使 (41) with a fixed body, the moving blades (51) and the fixed blade (52) axial overlap, moving blades (51) and the fixed blades (52) are in a state vertically downward; the fixed blade a first fixed block is fixed (43) on the means (42) connected to the axial gear (44) fixed on said first block (43), said hub body (41) is provided with an axially extending upper runway pinion (45), the axial direction of the gear (44) and the pinion runway (45) snap-fit; fixing means is fixed to the blade (42) of the second fixing block (46), said blade retention means two fixing blocks (46) on a circumferential gear (47), said hub body (41) front end is provided with a hub gear (48) and the hub body (41) coaxially disposed, said when the front end (42) and the hub body (41) having a distance, such that when said axial gear (44) is not displaced to the runway and pinion (45) front end, the circumferential gear (47) and a gear hub (48) a clearance fit, when the axial gear (44) is displaced to the runway and pinion (45) the front end of the blade fixing means (42) driven by the axial gear (44) is displaced to the hub body (41) the front end of the 所述的周向齿轮(47)与轮毂齿轮(48)咬合配合。 The circumferential gear (47) and a gear hub (48) snap-fit.
2. 根据权利要求1所述的一种具有抗强风功能的水平轴风力机,其特征是:所述的叶片固定装置(42)的中部设置有叶片固定腔(42a),所述的活动叶片( 51)插入叶片固定腔(4¾) 中与叶片固定装置(42)固定连接。 2. According to one of claim 1 having a strong anti-wind function of horizontal axis wind turbine, as claimed in claim wherein: the middle blade fixing means (42) of the fixed blade is provided with a cavity (42a), said movable blade (51) is inserted into the blade fixing chamber (4¾) in (42) is fixedly connected with the blade fixture.
3. 根据权利要求2所述的一种具有抗强风功能的水平轴风力机,其特征是:所述的导流罩(3)上设置有可开合的上盖板(31)和侧盖板(32),所述的上盖板C31)和侧盖板C32)均位于活动叶片(51)折叠至固定叶片(52)前端的行程上。 The one of said horizontal axis wind turbine 2 having a strong anti-wind function claim, wherein: said shroud (3) is provided with opening and closing of the upper cover (31) and the side cover plate (32), said upper plate C31) and the side cover C32) are located in the moving blades (51) is folded onto the front end of the stroke of fixed vanes (52).
4. 根据权利要求3所述的一种具有抗强风功能的水平轴风力机,其特征是:所述的轮毂主体(41)包括有固定叶片连接器(49),所述的固定叶片连接器(49)与轮毂主体(41)固定连接,所述的固定叶片连接器(49)中部设置有固定叶片连接孔(4%),所述的固定叶片( 52)插入固定叶片连接孔(49a)中并与固定叶片连接器(49)固定连接。 According to claim 3, one of the horizontal axis wind turbine having a strong anti-wind function claims, characterized in that: said hub body (41) comprises a fixed blade connector (49), said fixed vanes connector (49) and the hub body (41) fixedly connected to the stationary blade connector (49) is provided with a central hole connected to a fixed blade (4%), the fixed vanes (52) inserted into the fixing blade connection hole (49a) and (49) is fixedly connected to the stationary blade connector.
5. 根据权利要求4所述的一种具有抗强风功能的水平轴风力机,其特征是:所述的叶片固定装置(42)上设置有用于防止叶片固定装置(42)过量位移的轴向限位块和周向限位块。 5. According to one claim 4 having a strong anti-wind function of horizontal axis wind turbine as claimed in claim, characterized in that: blade fixing means (42) is provided with said fixing means for preventing the axial blade (42) on displacement of excess stopper and a circumferential stopper.
6. -种如权利要求5所述的抗强风功能的水平轴风力机的使用方法,其特征是:包括以下步骤: > 、 步骤一'、当收到风速长期大于额定风速时或者台风的预警时,水干轴风力机^机;变某使得叶片(5)平行于轮毂主体(41)的周面; 步骤二、推动叶片固定装置(42),方向为向轮毂主体(41)的前端,使轴向齿轮(44)在轴齿跑道(45)滚动,带动叶片固定装置(42)轴向运动靠近轮毂齿轮(48); 步骤三、当轴向齿轮(44)滚动到轴齿跑道(45)的尽头,叶片固定装置(42)上的周向齿轮(47)的轮齿与轮毂齿轮(48)的轮齿交错咬合; 步骤四、周向旋转叶片固定装置(42),使周向齿轮(47)绕着轮毂齿轮(4¾转动,带动叶片固定装置(42)沿着轮毂主体(41)周向转动,直至活动叶片(51)转动到与固定叶片(52)轴向重叠; 步骤五、台风过后,反向操作上述步骤,将水平轴风力机的叶片(5)展开。 6. - The kind of use of horizontal axis wind turbine of claim 5 against strong wind function claims, characterized in that: comprising the steps of:>, step a ', a long warning when the wind speed is greater than rated wind speed is received or typhoon when, water, dry-axis wind turbine ^ machine; becomes a so that the blades (5) the circumferential surface is parallel to the hub body (41); step two, pushing the blade fixing means (42), the direction of the front end of the hub body (41), so that axial gear (44) (45) in the rolling track and pinion, driven vane fixing means (42) close to an axial movement of the gear hub (48); step three, when the axial gear (44) to the pinion rolling track (45) the end of, the circumferential teeth on the blade fixture (42) to the gear (47) and the teeth of the gear wheel (48) engaging interleaving; step four, circumferentially rotating blade fixing means (42), so that a circumferential gear ( 47) around the gear hub (4¾ rotated to drive the blade fixing means (42) along the circumferential direction of rotation of the hub body (41), until the moving blades (51) pivoted to the fixed blade (52) axially overlapping; step 5 typhoon after the reverse operation of the above steps, the horizontal axis wind turbine blade (5) is expanded.
7.根据权利要求6所述的一种具有抗强风功能的水平轴风力机的使用方法,其特征是: 步骤一与步骤二之间还设有打开导流罩(3)的上盖板(31)和侧盖板(32)的步骤;步骤四与步骤五之间还设有闭合导流罩(3)的上盖板(31)和侧盖板(32)的步骤。 6. The use of one of the horizontal axis wind turbine having a strong anti-wind function claim, wherein: step a further step is provided with the shroud opening (3) on the cover between the two ( 31) and the side cover (32); a step between four and five step further has a closed shroud (3) a step of the cover plate (31) and the side cover (32). 8•根据权利要求7所述的一种具有抗强风功能的水平轴风力机的使用方法,其特征是: 步骤二中推动叶片固定装置(42)时,叶片固定装置(4¾位于轮毂主体(41)上方,相应地,活动叶片(51)也位于轮毂主体(41)上方,步骤四中活动叶片( 51)转动到与固定叶片(52)轴向重叠时,叶片固定装置(4¾位于轮毂主体(41)下方,相应地,活动叶片( 5丨)也位于轮毂主体(41)下方。 8 • Use horizontal axis wind turbine having a strong anti-wind function according to any preceding claim 7, characterized in that: during step two pushing blade fixing means (42), the blade fixing means (4¾ of the hub body (41 when) above, respectively, moving blades (51) also located in the hub upper body (41), the step 4 moving blades (51) pivoted to the fixed blade (52) axially overlapping the blade fixing means (4¾ of the hub body ( 41) below, respectively, the movable blade (5 Shu) is also located in the hub body (41) below.
CN 201410633846 2014-11-12 2014-11-12 The horizontal axis wind turbine having a strong anti-wind function and method of use CN104454358B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102348889A (en) * 2008-08-22 2012-02-08 自然动力概念公司 Folding blade turbine
DE102012103626A1 (en) * 2012-04-25 2013-10-31 Deutsches Zentrum für Luft- und Raumfahrt e.V. Wind turbine for converting wind energy to electrical energy, has rotor with inner ring and outer ring, where rotor blade end is arranged facing towards rotation axis, while another rotor blade end is arranged facing away from rotation axis
CN104314761A (en) * 2014-08-25 2015-01-28 丁健威 Blade-foldable wind-power generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102348889A (en) * 2008-08-22 2012-02-08 自然动力概念公司 Folding blade turbine
DE102012103626A1 (en) * 2012-04-25 2013-10-31 Deutsches Zentrum für Luft- und Raumfahrt e.V. Wind turbine for converting wind energy to electrical energy, has rotor with inner ring and outer ring, where rotor blade end is arranged facing towards rotation axis, while another rotor blade end is arranged facing away from rotation axis
CN104314761A (en) * 2014-08-25 2015-01-28 丁健威 Blade-foldable wind-power generator

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