CN201363233Y - Anti-freezing type wind turbine blade of wind generating set - Google Patents
Anti-freezing type wind turbine blade of wind generating set Download PDFInfo
- Publication number
- CN201363233Y CN201363233Y CNU200920000677XU CN200920000677U CN201363233Y CN 201363233 Y CN201363233 Y CN 201363233Y CN U200920000677X U CNU200920000677X U CN U200920000677XU CN 200920000677 U CN200920000677 U CN 200920000677U CN 201363233 Y CN201363233 Y CN 201363233Y
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- Prior art keywords
- blade
- wind
- resistor
- layer
- wheel blade
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- 238000007710 freezing Methods 0.000 title description 5
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 108010053481 Antifreeze Proteins Proteins 0.000 claims description 13
- 230000002528 anti-freeze Effects 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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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
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- Wind Motors (AREA)
Abstract
一种防结冰型风力发电机组风轮叶片，主要包括由玻璃钢复合材料制成的风轮叶片，在风轮叶片径向和弦向的位置处布置电阻器，电阻器布置在叶片上，并与玻璃钢之间通过树脂粘合剂将二者粘接成一体；在潮湿、低温的环境下，叶片表面容易结冰，可通过对电阻器通电后产生热量，消除叶片表面的结冰问题，降低由于结冰而产生的疲劳载荷，提高风力发电机组的运行时间，增加发电量，以提高机组的可利用率、延长叶片的使用寿命。
A wind rotor blade of an anti-icing type wind power generating set mainly includes a wind rotor blade made of fiberglass composite material, and resistors are arranged at radial and chord positions of the wind rotor blade, and the resistors are arranged on the blades and connected with The glass fiber reinforced plastics are bonded together by a resin adhesive; in a humid and low temperature environment, the surface of the blade is easy to freeze, and the heat can be generated by energizing the resistor to eliminate the problem of icing on the surface of the blade and reduce the The fatigue load caused by icing can increase the running time of the wind turbine and increase the power generation, so as to improve the availability of the unit and prolong the service life of the blades.
Description
Technical field
The utility model relates to a kind of wind-driven generator group wind-wheel blade, refers to a kind of anti-freeze type wind-driven generator group wind-wheel blade especially.
Background technique
The wind wheel blade of wind power generating set is to be made by glass fiber reinforced plastics composite material, because the wind wheel blade of existing a lot of wind power generating set does not have heating and heat-insulating device, when blade moves under the environmental conditions of low temperature (as subzero), high humidity or is static, the phenomenon of freezing usually appears in blade surface, and causes the generated energy and the working life of reducing unit.Because blade surface freezes, make wind wheel produce bigger imbalance, and bigger vibration occurs, produce more serious alternate load.
The model utility content
The utility model purpose is: a kind of anti-freeze type wind-driven generator group wind-wheel blade is provided, can under the environment of low temperature, high humidity, prevent that blade surface from freezing, thereby reduce or eliminate the vibration problem of blade, improve the life-span of wind wheel blade and unit, and improve the availability of unit.
The utility model purpose is achieved in that a kind of anti-freeze type wind-driven generator group wind-wheel blade, mainly comprise the wind wheel blade of making by glass fiber reinforced plastics composite material, be equiped with at least one resistor along wind wheel blade exhibition or chordwise location place, and the shape of described this at least one resistor and blade shape are complementary.
This blade comprises blade inlet edge, the trailing edge of a leeward side and the front-axle beam and the back rest that is supported on the blade inner chamber of housing, inner chamber, the blade root portion that is connected with wheel hub, the blade tip that is arranged in blade end, the side of facining the wind.
Wherein: this anti-freeze type wind-driven generator group wind-wheel blade, between its resistor and this wind wheel blade by resin binder with the two bonding being integral.
This anti-freeze type wind-driven generator group wind-wheel blade, the housing of this blade is a multi-layer structure, and inside by outer surface, and first layer is one deck frp layer that covers on the wind wheel blade housing external surface, the second layer is the resistor layer that each resistor is formed, the 3rd layer to inner chamber be frp layer; Or be: inside by outer surface, first layer by device the blade shell top layer formed resistor layer by each resistor, the second layer to inner chamber is a frp layer.
Described resistor is formed for resistance wire commonly used or is special-purpose heat generating resistor.
The beneficial effects of the utility model are: owing to radially arranging resistor with tangential position at wind wheel blade, and and the frp layer of blade between by resin binder with the two bonding being integral; Under the environment of humidity, low temperature, blade surface freezes easily, can be by resistor energising back be produced heat, eliminate the ice formation issues of blade surface, reduce the fatigue load that produces owing to freezing, improve the working time of wind power generating set, increase generated energy, with the availability that improves unit, the working life that prolongs blade.This technology, through actual test and wind energy turbine set post-installation review, this blade aerodynamic configuration is constant, has not only improved the availability of unit but also has prolonged working life of blade.
Description of drawings
Fig. 1, the utility model are used schematic representation.
Fig. 2, wind wheel blade shell construction schematic representation.
One of Q place enlarged diagram of Fig. 3, Fig. 2.
Two of the Q place enlarged diagram of Fig. 4, Fig. 2.Symbol description:
1 blade, 11 blade inlet edges, 12 trailing edges, 14 housings
21 exhibitions of 2 resistance heating nets are to resistor 22 tangential resistor 31 front-axle beams
32 back rest, 4 blade root portions, 5 blade tips, 6 vent holes
A resistor layer b, c, d, e, f frp layer
Embodiment
For anti-freeze type wind-driven generator group wind-wheel blade of the present utility model can be further appreciated,, give detailed description below in conjunction with accompanying drawing.
Referring to shown in Figure 1, a kind of wind wheel blade of freezing of preventing mainly comprises the wind wheel blade of being made by glass fiber reinforced plastics composite material 1, and this wind wheel blade is connected and fixed with wind wheel wheel hub (not illustrating) by blade root portion 4.Several exhibitions that are complementary with blade shape are arranged to resistor 21 in wind wheel blade 1 exhibition to the position device, several tangential resistors 22 that are complementary with blade shape are arranged to the position device at chord of blade; This several exhibition is to resistor 21 perfoliate-leaf roots 4 and blade tips 5, and this tangential resistor 22 is along the housing 14 penetrating blade leading edges 11 and the trailing edge 12 of blade.This blade is made by glass fibre reinforced plastics, and at the inner inner chamber that forms of glass steel shell.The blade tail end is provided with a vent hole 6, and this vent hole 6 is communicated with inner chamber, so that increase the circulation of air.
The wind wheel blade housing of wind power generating set is generally multi-layer structure, and as shown in Figure 2, housing 14 is made by several layers of frp layer, and Q represents the arbitrary position on this leaf housing, as Fig. 3,4 enlarged views for the Q place.
Be illustrated in figure 3 as the enlarged diagram at Q place among Fig. 2, in the present embodiment, the housing of blade is that multilayer is formed structure, the outermost surface that resistor is positioned at the wind wheel blade housing is promptly: from inside by outer surface, first layer b is one deck frp layer that covers on the external surface of wind wheel blade, second layer a is the resistor layer that described several exhibitions are formed to resistor 21 and tangential resistor 22, the 3rd layer of c to inner chamber be frp layer.
Several exhibitions of being installed in the present embodiment also can select for use common resistance wire to replace to the special-purpose heat generating resistor made from the optional material big with resistance value, that fusing point is high of tangential resistor.The conventional, electric-resistance silk is wire commonly used.
The shape of each resistor and the shape of blade are complementary, promptly match in length, crooked radian etc., and can be by resin binder with the two bonding being integral between the frp layer of resistor and blade shell.When blade moves under the environmental conditions of low temperature (as subzero), high humidity or is static, can connect power supply to each described resistor, make resistor heats up, thereby resistor heats up and and the blade frp layer between produce the temperature that heat transmission is improved blade, eliminate the ice formation issues of blade surface.
Wherein above-mentioned several exhibitions can only be replaced by a resistance heating net 2 to resistor 21 and several tangential resistors 22, this resistance heating net 2 is by having several tangential layouts and opening up to the common metal silk of arranging and made, the shape of resistance heating net 2 and the shape of wind wheel blade are complementary, be that size, crooked radian etc. match, so that it is bonding with the frp layer of blade better, the area of contact of increase and blade itself improves heat transference efficiency as far as possible.
Be illustrated in figure 4 as the enlarged diagram at Q place among Fig. 2, represent second embodiment of the present utility model.In the present embodiment, blade shell is that also multilayer forms structure, and itself and first embodiment's the main distinction is, different in conjunction with order between resistor and the wind wheel blade housing.Be illustrated in figure 4 as after the first shop layer that resistor layer is positioned at glass steel shell and the schematic representation that combines with housing, that is: inside by outer surface, first layer a is the resistor layer of device on the blade top layer, second layer b to inner chamber be frp layer.It is described several exhibitions are installed in blade to resistor 21 and tangential resistor 22 outermost surface, this several exhibition is to resistor 21 perfoliate-leaf roots 4 and blade tips 5, this several tangential resistor is along the glass steel surface penetrating blade leading edge 11 and the trailing edge 12 of blade shell, and the shape of each resistor and the shape of blade are complementary, be that size, crooked radian etc. match, can be between each resistor and the blade by resin binder with the two bonding being integral.
In the present embodiment, exhibition also can select for use common resistance wire to replace to can be the special-purpose heat generating resistor that resistance value is big, fusing point is high material is made with tangential resistor.The conventional, electric-resistance silk is wire commonly used.
When blade moves under the environmental conditions of low temperature (as subzero), high humidity or is static, can be to each resistor energising, make resistor heats up, thus resistor heats up and and the blade frp layer between produce the temperature that heat transmission is improved blade, eliminate the ice formation issues of blade surface.
As above an embodiment is described, above-mentioned several exhibitions can only be replaced by a resistance heating net 2 to resistor 21 and several tangential resistors 22, this resistance heating net 2 is by having several tangential layouts and opening up to the common metal silk of arranging and made, the shape of resistance heating net 2 and the shape of wind wheel blade are complementary, be that size, crooked radian etc. match, so that bonding with the frp layer of blade better, the area of contact of increase and blade itself improves heat transference efficiency as far as possible.
After implementing this technology, through test and wind energy turbine set post-installation review, this blade aerodynamic configuration is constant, has not only improved the availability of unit but also has prolonged working life of blade.
Claims (6)
1, a kind of anti-freeze type wind-driven generator group wind-wheel blade, mainly comprise the wind wheel blade of making by glass fibre reinforced plastics, it is characterized in that: along wind wheel blade exhibition to or chordwise location on device at least one resistor is arranged, and the shape of the shape of described at least one resistor and blade is complementary.
2, anti-freeze type wind-driven generator group wind-wheel blade according to claim 1 is characterized in that: this blade comprises blade inlet edge, the trailing edge of a leeward side and the front-axle beam and the back rest that is supported on the blade inner chamber of glass steel shell, inner chamber, the blade root portion that is connected with wheel hub, the blade tip that is arranged in blade end, the side of facining the wind.
3, anti-freeze type wind-driven generator group wind-wheel blade according to claim 2 is characterized in that: be integral by resin binder is bonding between described resistor and this wind wheel blade.
4, anti-freeze type wind-driven generator group wind-wheel blade according to claim 2, it is characterized in that: the housing of described blade is a multi-layer structure, and it is inside by outer surface, first layer is one deck frp layer on the wind wheel blade housing external surface, the second layer is the resistor layer of being made up of resistor, the 3rd layer to inner chamber be frp layer.
5, anti-freeze type wind-driven generator group wind-wheel blade according to claim 2, it is characterized in that: the housing of described blade is a multi-layer structure, and inside by outer surface, first layer is the resistor layer that device is formed at the resistor on blade top layer, and the second layer to inner chamber is a frp layer.
6, according to the described anti-freeze type wind-driven generator group wind-wheel blade of above-mentioned arbitrary claim, it is characterized in that: described resistor is formed or special-purpose heat generating resistor for resistance wire commonly used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920000677XU CN201363233Y (en) | 2009-01-12 | 2009-01-12 | Anti-freezing type wind turbine blade of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920000677XU CN201363233Y (en) | 2009-01-12 | 2009-01-12 | Anti-freezing type wind turbine blade of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363233Y true CN201363233Y (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920000677XU Expired - Fee Related CN201363233Y (en) | 2009-01-12 | 2009-01-12 | Anti-freezing type wind turbine blade of wind generating set |
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| Country | Link |
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| CN (1) | CN201363233Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213191A (en) * | 2011-05-20 | 2011-10-12 | 叶卫 | Device and method for preventing rotor blade of wind driven generator from freezing |
| CN102822517A (en) * | 2010-04-12 | 2012-12-12 | 西门子公司 | Secure heating mats to wind turbine blades |
| CN102878026A (en) * | 2012-10-16 | 2013-01-16 | 刘中威 | Wind driven generator rotor blade with electrothermal deicing devices |
| CN103790789A (en) * | 2014-03-10 | 2014-05-14 | 魏绍明 | Anti-icing fan blade structure the surface of which has heating function |
| CN103821665A (en) * | 2013-10-18 | 2014-05-28 | 河海大学常州校区 | Blade deicing device for horizontal-axis wind turbines |
| EP2795117A1 (en) * | 2011-12-21 | 2014-10-29 | Vestas Wind Systems A/S | A wind turbine blade |
| CN105190027A (en) * | 2013-04-05 | 2015-12-23 | 乌本产权有限公司 | Wind turbine and method for operating a wind turbine |
-
2009
- 2009-01-12 CN CNU200920000677XU patent/CN201363233Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822517A (en) * | 2010-04-12 | 2012-12-12 | 西门子公司 | Secure heating mats to wind turbine blades |
| CN102822517B (en) * | 2010-04-12 | 2015-12-09 | 西门子公司 | Secure heating mats to wind turbine blades |
| US9341164B2 (en) | 2010-04-12 | 2016-05-17 | Siemens Aktiengesellschaft | Fixation of a heating mat to a blade of a wind turbine |
| CN102213191A (en) * | 2011-05-20 | 2011-10-12 | 叶卫 | Device and method for preventing rotor blade of wind driven generator from freezing |
| EP2795117A1 (en) * | 2011-12-21 | 2014-10-29 | Vestas Wind Systems A/S | A wind turbine blade |
| US9745955B2 (en) | 2011-12-21 | 2017-08-29 | Vestas Wind Systems A/S | Wind turbine blade |
| CN102878026A (en) * | 2012-10-16 | 2013-01-16 | 刘中威 | Wind driven generator rotor blade with electrothermal deicing devices |
| CN102878026B (en) * | 2012-10-16 | 2015-02-04 | 刘中威 | Wind driven generator rotor blade with electrothermal deicing devices |
| CN105190027A (en) * | 2013-04-05 | 2015-12-23 | 乌本产权有限公司 | Wind turbine and method for operating a wind turbine |
| CN103821665A (en) * | 2013-10-18 | 2014-05-28 | 河海大学常州校区 | Blade deicing device for horizontal-axis wind turbines |
| CN103790789A (en) * | 2014-03-10 | 2014-05-14 | 魏绍明 | Anti-icing fan blade structure the surface of which has heating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160606 Granted publication date: 20091216 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170606 Granted publication date: 20091216 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20170112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |