CN203114497U - Bidirectional blade of horizontal axis tidal current energy generator - Google Patents

Bidirectional blade of horizontal axis tidal current energy generator Download PDF

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Publication number
CN203114497U
CN203114497U CN 201220727296 CN201220727296U CN203114497U CN 203114497 U CN203114497 U CN 203114497U CN 201220727296 CN201220727296 CN 201220727296 CN 201220727296 U CN201220727296 U CN 201220727296U CN 203114497 U CN203114497 U CN 203114497U
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CN
China
Prior art keywords
airfoil
blade
half part
lower half
cross section
Prior art date
Application number
CN 201220727296
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Chinese (zh)
Inventor
王丹
史为超
王同华
王同学
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青岛海斯壮铁塔有限公司
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Priority to CN 201220727296 priority Critical patent/CN203114497U/en
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Publication of CN203114497U publication Critical patent/CN203114497U/en

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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
    • Y02E10/20Hydro energy
    • Y02E10/22Conventional, e.g. with dams, turbines and waterwheels
    • Y02E10/223Turbines or waterwheels, e.g. details of the rotor

Abstract

The utility model discloses a bidirectional blade of a horizontal axis tidal current energy generator. The blade comprises an upper half part and a lower half part, wherein the working face of the upper half part faces a forward incoming flow; the working face of the lower half part faces a reverse incoming flow; BDA66-12 airfoil is adopted by the cross section of the upper half part; and BDA65-21 airfoil is adopted by the cross section of the lower half part. An incident flow control device is not required to be arranged for the tidal current generator using the bidirectional blade, both forward and reverse incoming flows can keep higher efficiency, meanwhile, the reliability of the device is improved, the accident rate of the device is greatly reduced, and the maintenance cost of the device is reduced; and a thicker airfoil is adopted for the blade part with high strength requirement, the airfoil with smaller thickness and better hydrodynamic performance is adopted for a main energy extraction region on the part with radius of 30-100 percent of the blade, and the hydrodynamic performance of a turbine is not reduced and the requirement of the blade on strength can also be guaranteed.

Description

水平轴潮流能发电机的双向叶片 Two-way blade horizontal axis tidal current energy generator

技术领域 FIELD

[0001] 本实用新型属于潮流发电机技术领域,具体涉及水平轴潮流能发电机的双向叶片。 [0001] The present invention belongs to the technical field flow generator, particularly relates to a bidirectional energy flow leaves the horizontal axis of the generator.

背景技术 Background technique

[0002] 潮汐现象是指海水在天体(主要是月球和太阳)引潮力作用下所产生的周期性运动,习惯上把海面垂直方向涨落称为潮汐,而海水在水平方向的流动称为潮流。 [0002] tide phenomenon refers to water in the sky (the moon and the sun mainly) under periodic motion produced by tidal forces, customarily referred to as the sea tidal fluctuation in the vertical direction, while the water flow in the horizontal direction is referred to as a trend . 潮汐现象发生时蕴藏着巨大能量,这种能量被称为潮汐能,它是一种不消耗燃料、没有污染、不受洪水或枯水影响、用之不竭、周期性强而且较为稳定的再生能源,且在某一特定海域是特定的、可预估的。 When the tide phenomenon bears tremendous energy, this energy is called tidal energy, it is a not consume fuel, no pollution, flood or dry without influence, inexhaustible, strong and relatively stable periodic regeneration energy, and in a particular sea area is specific and can be estimated. 我国就蕴藏着巨大的潮汐能,如何更好地利用这些可再生能源对不可再生能源日益减少的当今社会十分重要。 Our country on a vast reservoir of tidal energy, how to make better use of these renewable energy sources for today's society dwindling non-renewable energy is very important.

[0003] 现有的用于潮汐能发电的潮流发电机叶片大部分采用单向叶片,这种单向叶片的发电机工况范围比较固定,仅当潮水与叶片正面迎流时,发电机工作发电,当来流反向时,叶片升力减小,同时伴随阻力增大,发电机将无法正常工作。 [0003] a conventional turbine blade for flow of tidal power generation is mostly unidirectional blades, turbine vanes oneway relatively fixed range of operating conditions, and only when the tide incident flow front blade, a generator generating, when a reverse flow, blade lift forces decrease, accompanied by resistance increases, the generator will not work.

发明内容 SUMMARY

[0004] 为了克服现有技术领域存在的上述缺陷,本实用新型的目的在于,提供一种水平轴潮流能发电机的双向叶片,解决现有技术采用单向叶片单向水动力性能较好,反向水动力性能较差,不能满足双向发电时都保持较高发电效率的要求。 [0004] In order to overcome the above defects of the prior art, the object of the present invention is to provide bi-directional blade for a horizontal axis of the tidal current energy generator, is preferably employed to solve the prior art blade power performance unidirectional way water, reverse hydrodynamic performance is poor, can not meet all maintain a high power generation efficiency of the two-way power requirements.

[0005] 本实用新型提供的水平轴潮流能发电机的双向叶片,所述的叶片包括工作面迎向正向来流的上半部和工作面迎向反向来流的下半部,所述的上半部横剖面采用BDA66-12翼型,所述的下半部横剖面采用BDA65-21翼型;在横截面上,所述的上半部的翼型和下半部的翼型呈中心对称;在横截面上,所述的上半部的翼型和下半部的翼型的翼弦共线。 [0005] The present bi-directional flow vanes horizontal axis invention can provide a generator, said blade comprising Looking forward to face the upper and lower half of the flow face Looking reversing the flow, the BDA66-12 cross section the upper half of the airfoil using the lower half of the airfoil cross section using BDA65-21; in cross section, of the lower half of the airfoil and the airfoil shape of the upper half of the center symmetrical; in cross section, of the lower half of the airfoil and said airfoil upper half chord collinear.

[0006] 本实用新型提供的水平轴潮流能发电机的双向叶片,其有益效果在于,对单向翼型进行双向对称翼型改型设计,来适应潮流往复运动的特点,使用双向叶片的潮流发电机无需安装迎流控制装置,正反两向来流都能保持较高的效率,同时提高了装置的可靠性,大大降低了装置的事故发生率,降低了装置的维护成本;对于强度要求高的叶片部位采用较厚的翼型,对于叶片半径30%-100%处能量主要提取区域采用较薄、水动力性能较好的翼型,两种翼型结合使用不会降低涡轮的水动力性能,还能保证其对强度的要求。 [0006] The present bi-directional flow vanes horizontal axis invention can provide a generator which advantageous effect in that, on the way airfoil design bilaterally symmetrical airfoil modified to accommodate flow characteristics of reciprocating motion, using the bidirectional flow blade generator control means incident flow without having to install, both forward and reverse flow can always maintain a high efficiency, while improving the reliability of the device, greatly reducing the accident rate device, the device reduces maintenance costs; high strength requirements for the use of thicker airfoil blade portion, the energy of the 30% -100% the blade radius major extraction area using a thinner, better hydrodynamic performance of the airfoil, the airfoil in combination of two without reducing the hydrodynamic performance of the turbine , but also to ensure that the requirements of strength.

附图说明 BRIEF DESCRIPTION

[0007] 图1是本实用新型的整体结构示意图; [0007] FIG. 1 is a schematic diagram of the overall configuration of the present invention;

[0008] 图2是本实用新型的俯视图。 [0008] FIG. 2 is a plan view of the present invention.

[0009] 图中标注: [0009] FIG denoted:

[0010] 1.叶片;2. 上半部;3.下半部。 [0010] 1 blade;. 2 upper half; 3. the lower half. 具体实施方式 Detailed ways

[0011] 下面参照附图,结合一个实施例,对本实用新型提供的水平轴潮流能发电机的双向叶片进行详细的说明。 [0011] Referring to the drawings, in connection with one embodiment, the horizontal axis of the bi-directional flow vanes of the present invention can be provided in the generator will be described in detail.

实施例 Example

[0012] 参照图1一2,本实施例的水平轴潮流能发电机的双向叶片,所述的叶片I包括工作面迎向正向来流的上半部2和工作面迎向反向来流的下半部3,所述的上半部2横剖面采用BDA66-12翼型,所述的下半部3横剖面采用BDA65-21翼型;在横截面上,所述的上半部2的翼型和下半部3的翼型呈中心对称;在横截面上,所述的上半部2的翼型和下半部3的翼型的翼弦共线。 [0012] Referring to FIG 1 a 2, bi-directional flow embodiment of the horizontal axis of the blade can be a generator of the present embodiment, the blade face I comprises Looking Looking forward to the flow of the upper half 2 and the reverse face to the stream 3 the lower half, the upper half of the cross section using BDA66-12 airfoil 2, a cross section of the lower half 3 using BDA65-21 airfoil; in cross section, of the upper half 2 3 of the lower half of the airfoil and the airfoil centrosymmetric; in cross section, of the upper and lower halves 2 of the airfoil of the airfoil chord 3 collinear. 使用本实用新型的潮流发电机,在海水双向来流时能保持较高的性能,提高发电效率。 Use the tidal current generator of the present invention, when the water flow to maintain two-way high performance, increase power generation efficiency.

Claims (3)

1.一种水平轴潮流能发电机的双向叶片,其特征在于:所述的叶片包括工作面迎向正向来流的上半部和工作面迎向反向来流的下半部,所述的上半部横剖面采用BDA66-12翼型,所述的下半部横剖面采用BDA65-21翼型。 A bidirectional horizontal axis blades can flow generator, wherein: said blade comprises Looking forward to the upper and lower half of the flow face Looking to reverse the flow of the face, according to BDA66-12 cross section the upper half of the airfoil using the lower half of the airfoil cross section BDA65-21 employed.
2.根据权利要求1所述的水平轴潮流能发电机的双向叶片,其特征在于:在横截面上,所述的上半部的翼型和下半部的翼型呈中心对称。 The bi-directional flow axis of the horizontal blade as claimed in claim 1, the energy generator, characterized in that: in cross section, of the lower half of the airfoil and on the airfoil half centrosymmetric.
3.根据权利要求1所述的水平轴潮流能发电机的双向叶片,其特征在于:在横截面上,所述的上半部的翼型和下半部的翼型的翼弦共线。 According to claim 1, the horizontal axis of the bi-directional flow vanes energy generator, wherein: the airfoil chord collinear cross section, the upper half and a lower half of the airfoil.
CN 201220727296 2012-12-26 2012-12-26 Bidirectional blade of horizontal axis tidal current energy generator CN203114497U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089516A (en) * 2012-12-26 2013-05-08 青岛海斯壮铁塔有限公司 Bidirectional blade of horizontal shaft tidal current energy generator
CN103573531A (en) * 2013-10-21 2014-02-12 河海大学 Ocean current energy power generation type bidirectional impeller of water turbine with flow guide cover

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089516A (en) * 2012-12-26 2013-05-08 青岛海斯壮铁塔有限公司 Bidirectional blade of horizontal shaft tidal current energy generator
CN103573531A (en) * 2013-10-21 2014-02-12 河海大学 Ocean current energy power generation type bidirectional impeller of water turbine with flow guide cover
CN103573531B (en) * 2013-10-21 2016-01-13 河海大学 A kind of energy by ocean current generating has the water turbine Bidirectional vane wheel of air guide sleeve

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Owner name: QINGDAO ZHONGTIAN STRO TECHNOLOGY CO., LTD.

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Owner name: QINGDAO HAIRUN SIZHUANG HEAVY EQUIPMENT CO., LTD.

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Effective date: 20140508

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