CN101943106A - High-molecular composite blade for 500KW-below three-blade wind turbine - Google Patents
High-molecular composite blade for 500KW-below three-blade wind turbine Download PDFInfo
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- CN101943106A CN101943106A CN2009101587799A CN200910158779A CN101943106A CN 101943106 A CN101943106 A CN 101943106A CN 2009101587799 A CN2009101587799 A CN 2009101587799A CN 200910158779 A CN200910158779 A CN 200910158779A CN 101943106 A CN101943106 A CN 101943106A
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- blade
- pneumatic equipment
- unit
- described pneumatic
- polymer composite
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
-
- 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
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Abstract
The invention discloses a high-molecular composite blade for a 500KW-below three-blade wind turbine, and relates to the technical field of manufacturing, injection molding and bonding of wind turbine blades. The blade is divided into a plurality of sections in length according to the geometric shape of the blade. (1) The inner side of each single blade is distributed with groined stiffening ribs. (2) The axial end surface of each blade section is provided with an uneven bonding surface so as to facilitate the bonding of special nylon adhesive. (3) The tensile strength of the fan blade material is greater than or equal to 250 Mpa, the compressive strength is greater than or equal to 260 Mpa, the tensile modulus is greater than or equal to 15000 N/mm2, the fan blade material has the functions of ageing resistance and ultraviolet resistance, and the service life of the product is longer than 20 years. The blade has favorable weatherability, can stably work at 40 below zero to120 DEG C, and is made of light-weight high-molecular composite material of which the density is smaller than 1.4*10<3>kg/m<3>. The appearance of the blade is designed and manufactured according to the blade-element theory. The invention overcomes the defects of heavy weight, high cost, difficulty in installation and transportation, and the like, has the advantages of high strength, light weight, low cost, and convenient installation and transportation, and saves the cost on towers.
Description
Technical field:
The present invention relates to leaf production, injection moulding, the adhesive technology field of cloverleaf wind-driven generator.
Background technique:
In view of wind-powered electricity generation industry fast development both at home and abroad at present, various blade materials are used and are promoted at wind energy conversion system, by comparative analysis, key technical index such as the combination property, particularly cost performance of various blades such as wooden, epoxy glass laminate, carbon fibre resin, aluminium alloy vane and Wind Power Utilization efficient, the present invention adopts the novel high polymer composite material to make blade, reduce leaf weight, improve Blade Properties, reduce the leaf production cost, the employing combined on site is installed, and saves cost of transportation greatly.
Summary of the invention: the purpose of this invention is to provide a kind of high strength, light weight, cost low, be convenient to transport installation, anti-aging, polymer composite blade that weatherability is extremely strong.Geometrical shape according to blade is divided into plurality of sections on length, be a plurality of blade units.
(1) each unit makes the shaping end face respectively and is provided with concavo-convex bonding plane.
(2) adopt the macromolecule special adhesive of independent development bonding, bonding strength＞80Mpa, and have-40 ℃～150 ℃ the interior better weatherability of temperature range.
(3) thick blade is finished halfbody with Shooting Technique respectively from middle dimidiation, from the centre bonding in aggregates section then, periphery leaves storage glue groove, is convenient to bonding and mend flat with special adhesive.
(4) fan blade is selected polymer composite tensile strength 〉=250Mpa, compression strength 〉=260Mpa, stretch modulus 〉=15000N/mm for use
2Possess anti-aging, anti-ultraviolet function simultaneously, product working life＞20 year, suitable environment temperature-40 ℃～120 ℃ has better weather, selects density＜1.4 * 10 for use
3Kg/m
3The lightweight polymer composite, help improving Wind Power Utilization efficient.
(5) blade profile has stronger specific aim and practicability according to the aerodynamic principle design and in conjunction with the main wind field condition of northern China and coastal area.
(6) the whole blade surface comprises that the slyness of corner angle excessively is by mold design, polishing treatment, and the smooth windage in blade face is little, and Wind Power Utilization efficient is higher, overcomes manual pasting blade rough surface defective.
(7) polymer composite specific resistance＞3 * 10
14Ω .m, material are better insulator, need not do anti-lightning strike protection.
(8) blade guarantees that near the design of root position the profile transition meets under the prerequisite that blade tip, blade root speed ratio require, the indoor design circumference each to stiffening rib, lock with bolt in the two-sided cover of metal of then circular root being packed into.
(9) blade integral is divided into some unit and is formed separately, and transports to on-the-spot the installation then, with the on-the-spot stack mounting of nylon special adhesive, carries out on-the-spot oven dry in 2～4 hours with 120 ℃ ± 10 ℃ special-purpose air heaters, and its colloid curing is got final product.Be convenient to transportation because subdivision is manufactured, the blade body that overcomes other technology manufacturing is grown heaviness, is transported difficult defect of high cost.
(10) polymer composite possesses more excellent corrosion-resistant, abrasion resistance, does not need other sprayfused coating protection, anti-various dust storm rain erosions simultaneously.
Description of drawings:
Fig. 1 is a combined wind machine blade of the present invention, inner # type strengthening rib sectional view.
Fig. 2 is a fan blade two halves butt joint schematic representation of the present invention.
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are fan blade of the present invention unit connection diagrams.
Fig. 7 is fan blade of the present invention and wheel an ancient measure connection diagram, adopts two-sided cover to connect, continuously the steel loop Placement.
Embodiment:
The present invention designs in conjunction with northern China wind field and coastal wind field technical specifications according to the foline theory, has bigger practicability.
A material: select tensile strength 〉=250M
Pa, compression strength 〉=260M
Pa, drawing die 〉=15000N/mm
2, anti-aging, anti-ultraviolet extraordinary nylon alloy material has normal phase stable operation better weather under-40 ℃～120 ℃ environment.
B technology: the employing Shooting Technique is with laser or hot melt adhesion and cooperate the bonding process combined method of special adhesive.Earlier blade is divided into some unit, every unit from the centre cut open into about two, become semi-finished product with mold injection respectively, two halves is integral and cooperates special adhesive with laser or hot melt are bonding from the centre.
C is evenly coated in each unit between two unit with special adhesive by the external form order and forces together behind the male and female face, then with air heater with its baking and curing.
The blade body that D has a strengthening rib with the root of blade circle is packed in the double-sided metal cover, with high-strength bolt it is locked.
Whole blade is to be rounding off by all corner angle of molding and forming smooth in appearance, meets the technical requirements of Blade Design outward appearance, does not need to spray paint, shaping etc., and integral blade surface windage is less.
Claims (10)
1. one kind is applicable to the following three blade polymer composite pneumatic equipment blades mades of 500KW, is divided into blade unit, and connecting pin is formed.It is characterized in that: the shape according to blade is divided into some unit on length.(1) axial end of each unit, several are distributed in around inboard around the blade to be provided with attachment hole, are provided with the macromolecule connecting pin between two unit, use connecting pin two unit are linked together.
2. according to claims 1 described pneumatic equipment blades made, it is characterized in that: each unit end face edge designs becomes concavo-convex bonding plane, is convenient to that application specific nylon is gluing to be connect.
3. according to claims 1 described pneumatic equipment blades made, it is characterized in that: select the speciality polymer composite material for use, this blade material tensile strength 〉=250Mpa, compression strength 〉=260Mpa, stretch modulus 〉=15000N/mm
2Possesses anti-aging, anti-ultraviolet function simultaneously, product working life＞20 year.Have better weather, blade can be in-40 ℃～120 ℃ environment stable operation.
4. it is characterized in that according to claims 1 described pneumatic equipment blades made: technology is reasonable, each unit of ultra-thick blades is split up into two halves from the centre finishes halfbody with Shooting Technique respectively, be bonded as one with laser or hot melt adhesion technique, form a blade unit.Use Shooting Technique, blade surface can be accomplished smooth smoothly, and satisfy the blade exterior geometrical shape, overcome the deficiency of manual pasting blades such as glass-epoxy according to foline Design Theory appearance requirement.
5. according to claims 1 described pneumatic equipment blades made, it is characterized in that: adopt the two-sided cover of steel to connect blade wheel technology, the circular blade tail end that will have a stiffening rib is packed in the two-sided cover, and usefulness gong bolt-lock is tight.Make 12～30 high-strength bolt holes on two-sided cover inner ring steel loop, integral blade is fastened on the fan rotor seat by several high-strength bolts.
6. according to claims 1 described pneumatic equipment blades made, it is characterized in that: selected polymer composite possesses decay resistance preferably, and blade outer surface does not need to be coated with the gel coat layer protection again.
7. according to claims 1 described pneumatic equipment blades made, it is characterized in that: selected polymer composite wear-resisting property is better, can wear and tear long-term stable operation by anti-blown sand in than the harsh climate environment.
8. according to claims 1 described pneumatic equipment blades made, it is characterized in that: selected polymer composite specific resistance reaches 〉=and 3 * 10
14Ω .m is the good insulation performance body, does not need to be coated with the anti lightning material after making blade again.
9. according to claims 1 described pneumatic equipment blades made, it is characterized in that: selected polymer composite density＜1.4 * 10
3Kg/m
3, blade integral weight ratio same specification glass-epoxy leaf weight reduces about 20%, meets the light-weighted developing direction of blade material, helps the raising of Wind Power Utilization efficient.
10. blade integral is designed to give curved shape, according to aerodynamic principle Blade Design is given crooked 300～700 millimeters to the direction of facining the wind, when blade under wind-force promotes by Qu Bianzhi, in the time of can making the blade proper functioning, blade rotates along linear state, effectively improves Wind Power Utilization efficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101587799A CN101943106A (en) | 2009-07-05 | 2009-07-05 | High-molecular composite blade for 500KW-below three-blade wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101587799A CN101943106A (en) | 2009-07-05 | 2009-07-05 | High-molecular composite blade for 500KW-below three-blade wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101943106A true CN101943106A (en) | 2011-01-12 |
Family
ID=43435270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101587799A Pending CN101943106A (en) | 2009-07-05 | 2009-07-05 | High-molecular composite blade for 500KW-below three-blade wind turbine |
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| CN (1) | CN101943106A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004156A1 (en) * | 2011-07-04 | 2013-01-10 | Zhang Xiangzeng | Blade with constant cross section, forming method thereof, and horizontal axis wind turbine impeller comprised of the same |
| WO2013067916A1 (en) * | 2011-11-11 | 2013-05-16 | Zhang Xiangzeng | New blade of composite material for horizontal-axis wind power generator |
| CN104019001A (en) * | 2014-06-26 | 2014-09-03 | 国电联合动力技术有限公司 | Combined type wind wheel blade and wind generating set comprising same |
| CN105298760A (en) * | 2015-11-17 | 2016-02-03 | 北京金风科创风电设备有限公司 | Connecting device of segmented blade, wind generating set blade and control method of wind generating set blade |
| CN107288813A (en) * | 2017-06-22 | 2017-10-24 | 吴德礼 | A kind of wind power generation blade |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000064941A (en) * | 1998-08-19 | 2000-03-03 | Hitachi Zosen Corp | Wind power generation set |
| CN1269869A (en) * | 1997-09-04 | 2000-10-11 | Lm玻璃纤维有限公司 | Windmill rotor and wing blades therefor |
| EP1184566A1 (en) * | 1999-05-31 | 2002-03-06 | Manuel Torres Martinez | Aerogenerator blade |
| JP2004011616A (en) * | 2002-06-11 | 2004-01-15 | Shin Meiwa Ind Co Ltd | Wind mill blade structure for wind power generator |
| CN1641214A (en) * | 2004-01-15 | 2005-07-20 | 泉州凯丽化工有限公司 | Wind blade device for wind generating system |
| CN1795331A (en) * | 2003-05-28 | 2006-06-28 | 艾劳埃斯·乌本 | Rotor blade connection |
| CN2906122Y (en) * | 2006-03-30 | 2007-05-30 | 穆荣 | Longitudinal socket type thermosetting reinforced plastic wind driven generator blade |
| CN101070815A (en) * | 2006-03-30 | 2007-11-14 | 诺德克斯能源有限公司 | Rotor blade for wind energy plants |
-
2009
- 2009-07-05 CN CN2009101587799A patent/CN101943106A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1269869A (en) * | 1997-09-04 | 2000-10-11 | Lm玻璃纤维有限公司 | Windmill rotor and wing blades therefor |
| JP2000064941A (en) * | 1998-08-19 | 2000-03-03 | Hitachi Zosen Corp | Wind power generation set |
| EP1184566A1 (en) * | 1999-05-31 | 2002-03-06 | Manuel Torres Martinez | Aerogenerator blade |
| JP2004011616A (en) * | 2002-06-11 | 2004-01-15 | Shin Meiwa Ind Co Ltd | Wind mill blade structure for wind power generator |
| CN1795331A (en) * | 2003-05-28 | 2006-06-28 | 艾劳埃斯·乌本 | Rotor blade connection |
| CN1641214A (en) * | 2004-01-15 | 2005-07-20 | 泉州凯丽化工有限公司 | Wind blade device for wind generating system |
| CN2906122Y (en) * | 2006-03-30 | 2007-05-30 | 穆荣 | Longitudinal socket type thermosetting reinforced plastic wind driven generator blade |
| CN101070815A (en) * | 2006-03-30 | 2007-11-14 | 诺德克斯能源有限公司 | Rotor blade for wind energy plants |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004156A1 (en) * | 2011-07-04 | 2013-01-10 | Zhang Xiangzeng | Blade with constant cross section, forming method thereof, and horizontal axis wind turbine impeller comprised of the same |
| WO2013067916A1 (en) * | 2011-11-11 | 2013-05-16 | Zhang Xiangzeng | New blade of composite material for horizontal-axis wind power generator |
| CN104019001A (en) * | 2014-06-26 | 2014-09-03 | 国电联合动力技术有限公司 | Combined type wind wheel blade and wind generating set comprising same |
| CN104019001B (en) * | 2014-06-26 | 2016-08-17 | 国电联合动力技术有限公司 | A kind of combination type wind wheel blade and containing its wind power generating set |
| CN105298760A (en) * | 2015-11-17 | 2016-02-03 | 北京金风科创风电设备有限公司 | Connecting device of segmented blade, wind generating set blade and control method of wind generating set blade |
| CN105298760B (en) * | 2015-11-17 | 2018-11-13 | 北京金风科创风电设备有限公司 | Connecting device of segmented blade, wind generating set blade and control method of wind generating set blade |
| CN107288813A (en) * | 2017-06-22 | 2017-10-24 | 吴德礼 | A kind of wind power generation blade |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110112 |