CN105003394A - 2.5 MW/54.0 m wind turbine blade - Google Patents
2.5 MW/54.0 m wind turbine blade Download PDFInfo
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- CN105003394A CN105003394A CN201510396636.7A CN201510396636A CN105003394A CN 105003394 A CN105003394 A CN 105003394A CN 201510396636 A CN201510396636 A CN 201510396636A CN 105003394 A CN105003394 A CN 105003394A
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- blade
- wind
- driven generator
- shell
- glass fiber
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a 2.5 MW/54.0 m wind turbine blade. The 2.5 MW/54.0 m wind turbine blade comprises a blade shell formed by laying glass fiber cloth fitted with a blade die, high-modulus glass fiber girders are laid in the middle of the blade shell, PVC foam is spread on the two sides of the glass fiber girders, and resin is poured into the blade shell. The 2.5 MW/54.0 m wind turbine blade is lengthened and increased in swept area, so that the acquired wind energy is increased and the power of the blade is improved; the blade adopting the high-modulus glass fiber girders is improved in strength and reduced in weight; and through wing section improvement, the rotational speed of the blade is improved, the size and the weight of a direct-driven generator are reduced and the manufacturing cost is lowered.
Description
Technical field
The present invention relates to a kind of blade of wind-driven generator, particularly relate to a kind of 2.5MW/54.0 rice blade of wind-driven generator.
Background technique
Wind power technology is since the development seventies in last century, and single-machine capacity develops into MW class from multikilowatt, and global electric motor power has reached 282,000,000 kilowatts.Blower fan type is double-fed type and directly driving type blower fan mainly, and installation region is marched from land, intertidal zone to sea.China is since Renewable Energy Law in 2006 is promulgated, wind-powered electricity generation obtains and develops fast, and current electric motor power has reached 7532.4 ten thousand kilowatts.China's Wind Power Development ubiquity serious problems, be exactly that wind-powered electricity generation almost spreads over Chinese North China, northwest, Northeast Regional, the wind-resources in this region is good, and wind energy utilization efficiency is high; But due to transformation, the industry problem such as less-developed of electrical network, cause the wind-powered electricity generation in such region to be substantially in unserviceable situation.China's industry is flourishing, be badly in need of the region of green energy resource development in East China, southwest, South China Regional, and the wind-resources in this type of region is undesirable, is substantially in four Lei Feng districts.From the angle of energy conservation, if obtain specified power, the shortage of wind-resources must be made up by the length increasing blade.Therefore, develop overlength fan blade and carry out the inexorable trend that satisfied southern wind-power market is the development of current wind-power electricity generation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of 2.5MW/54.0 rice blade of wind-driven generator with higher-strength and rigidity.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of 2.5MW/54.0 rice blade of wind-driven generator, comprise blade shell, blade shell is laid by the glass fiber cloth of blade mold of fitting and is formed, the glass fibre girder of high-modulus is equipped with in the middle of blade shell, the both sides tiling of glass fibre girder has PVC foam, is perfused with resin in blade shell.
Further, described glass fibre girder is fixed with web by adhesive, and the two ends of this web are separately fixed on the glass fibre girder of blade shell suction surface and pressure side.
Further, the length of this blade of wind-driven generator is 54 meters.
Further, the maximum chord length of this blade of wind-driven generator is 3.7 meters, and the maximum pre-bending of blade of wind-driven generator is 4.0 meters.
Beneficial effect of the present invention:
1, length of blade increases, and wind sweeping area increases, and the wind energy of acquisition just increases, and its wind district being useful in 11.0m/s uses, and expands Applicable scope, adds fan power;
2, the glass fibre girder of the employing high-modulus of blade, improves the intensity of blade, reduces leaf weight and is about 2000Kg;
3, by the improvement of aerofoil profile, improve the rotating speed of blade, bring up to 18.5rpm by common 15rpm, reduce the volume and weight of direct drive generator, reduce cost of production;
4, new blade blade tip adopts flexible design, reaches the object reducing blade loading further.
Accompanying drawing explanation
Fig. 1 is demifacet body diagram of the present invention;
Fig. 2 is along A-A to sectional view in Fig. 1;
Fig. 3 is the structural representation of the present invention when maximum chord length;
Fig. 4 is the structural representation of blade of the present invention when maximum pre-bending.
Wherein: 1, glass fibre girder, 2, web, 3, blade shell, 4, PVC foam.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Following examples, only for illustration of the present invention, are not used for limiting the scope of the invention.
Shown in Fig. 1, a kind of 2.5MW/54.0 rice blade of wind-driven generator of the present invention, comprise blade shell 3, blade shell 3 is laid by the glass fiber cloth of laminating blade mold and is formed, the glass fibre girder 1 of high-modulus is equipped with in the middle of blade shell 3, the both sides tiling of glass fibre girder 1 has PVC foam 4, is perfused with resin in blade shell 3.
Shown in Fig. 2, glass fibre girder 1 is fixed with web 2 by adhesive, and the two ends of this web 2 are separately fixed on the glass fibre girder 1 of blade shell 3 suction surface and pressure side.
The length of blade of wind-driven generator of the present invention is 54 meters, and maximum chord length is 3.7 meters, and maximum pre-bending is 4.0 meters.
The making method of above-mentioned blade of wind-driven generator is: adopt glass fiber cloth laminating blade mold, form blade shell 3, at the glass fibre girder 1 of the middle lay high-modulus of blade shell 3, glass fibre girder 1 both sides PVC foam is paved, whole blade shell is covered afterwards with glass fiber cloth, vacuum infusion resin is utilized to make half blade, until blade after in mould, Procuring completes, as shown in Figure 2, prefabricated profiled web 2 is separately fixed at adhesive on the glass fibre girder 1 of SS face (suction side is translated into suction surface) blade shell, and the upset of PS face (pressure side is translated into pressure side) blade shell is combined on SS face, the two ends of web 2 are fixed on the glass fibre girder 1 in PS and SS face.As shown in Figure 3, the maximum chord length of blade of the present invention is 3.7 meters, and as shown in Figure 4, the maximum pre-bending of blade of the present invention is 4.0 meters.
Performance and the technical order of blade of the present invention are as follows:
Length of blade: 54.0m; Leaf weight: 12250 ± 200Kg;
Incision wind speed: 3.0m/s; Cut-out wind speed: 25.0m/s;
Rated wind speed: 11m/s; Extreme wind speeds: 52.5m/s;
Rotor diameter: 111.3m; Leaf longevity: 20 years;
Root bolt pitch diameter: 2300 ± 0.5mm; Number of Bolts: 92;
Be suitable for wind scale: IEC III A.
Claims (4)
1. a 2.5MW/54.0 rice blade of wind-driven generator, comprise blade shell, it is characterized in that: described blade shell is laid by the glass fiber cloth of blade mold of fitting and formed, the glass fibre girder of high-modulus is equipped with in the middle of described blade shell, the both sides tiling of described glass fibre girder has PVC foam, is perfused with resin in described blade shell.
2. a kind of 2.5MW/54.0 rice blade of wind-driven generator according to claim 1, it is characterized in that: described glass fibre girder is fixed with web by adhesive, and the two ends of this web are separately fixed on the glass fibre girder of blade shell suction surface and pressure side.
3. a kind of 2.5MW/54.0 rice blade of wind-driven generator according to claim 1, is characterized in that: the length of this blade of wind-driven generator is 54 meters.
4. a kind of 2.5MW/54.0 rice blade of wind-driven generator according to claim 1, it is characterized in that: the maximum chord length of this blade of wind-driven generator is 3.7 meters, the maximum pre-bending of blade of wind-driven generator is 4.0 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396636.7A CN105003394A (en) | 2015-07-08 | 2015-07-08 | 2.5 MW/54.0 m wind turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396636.7A CN105003394A (en) | 2015-07-08 | 2015-07-08 | 2.5 MW/54.0 m wind turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105003394A true CN105003394A (en) | 2015-10-28 |
Family
ID=54376208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510396636.7A Pending CN105003394A (en) | 2015-07-08 | 2015-07-08 | 2.5 MW/54.0 m wind turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105003394A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976587A (en) * | 1988-07-20 | 1990-12-11 | Dwr Wind Technologies Inc. | Composite wind turbine rotor blade and method for making same |
| CN202338452U (en) * | 2011-11-29 | 2012-07-18 | 南通东泰新能源设备有限公司 | 2.0 MW high-rotating speed prolonged direct-drive wind driven generator blade |
| CN203835637U (en) * | 2014-04-24 | 2014-09-17 | 南通东泰新能源设备有限公司 | 2.5MW/54m low-wind-speed super-long type power turbine generator blade |
-
2015
- 2015-07-08 CN CN201510396636.7A patent/CN105003394A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976587A (en) * | 1988-07-20 | 1990-12-11 | Dwr Wind Technologies Inc. | Composite wind turbine rotor blade and method for making same |
| CN202338452U (en) * | 2011-11-29 | 2012-07-18 | 南通东泰新能源设备有限公司 | 2.0 MW high-rotating speed prolonged direct-drive wind driven generator blade |
| CN203835637U (en) * | 2014-04-24 | 2014-09-17 | 南通东泰新能源设备有限公司 | 2.5MW/54m low-wind-speed super-long type power turbine generator blade |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151028 |
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| RJ01 | Rejection of invention patent application after publication |