CN103016278A - Congelation-preventing anti-icing type wind turbine blade - Google Patents
Congelation-preventing anti-icing type wind turbine blade Download PDFInfo
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- CN103016278A CN103016278A CN2013100133174A CN201310013317A CN103016278A CN 103016278 A CN103016278 A CN 103016278A CN 2013100133174 A CN2013100133174 A CN 2013100133174A CN 201310013317 A CN201310013317 A CN 201310013317A CN 103016278 A CN103016278 A CN 103016278A
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Abstract
The invention discloses a congelation-preventing anti-icing type wind turbine blade and belongs to the technical field of new energy power generation equipment. The congelation-preventing anti-icing type wind turbine blade comprises a wind turbine blade body which is made of composite materials and of a hollow structure, and an electromagnetic heating device is arranged on the wind turbine blade body and comprises a control unit, excitation units and an induction unit. By the aid of the electromagnetic heating device added on a traditional wind turbine blade, the defects of the wind turbine blade caused by low-temperature environments are overcome. An induction coil is of a metal mesh structure, so that heating is uniform without resulting in over-high or over-low local temperature of the wind turbine blade, and normal working of the wind turbine blade is guaranteed. Besides, by the aid of the electromagnetic heating device, the control unit controls working current size and frequency of the excitation units so as to control heating state of the induction unit, and accordingly a heating control process is more flexible.
Description
Technical field
The invention belongs to the generation of electricity by new energy equipment technical field, particularly relate to a kind of anti-anti-accumulated ice type blade of wind-driven generator that congeals.
Background technique
As everyone knows, along with the growing tension of energy problem, wind energy more and more is subject to people's attention as a kind of novel clean energy resource; Because China northeast, North China and the Northwest's wind energy resources are abundant, therefore, at present, 70% of whole nation installation total capacity is distributed in above-mentioned area; Obviously, it is exactly that winter temperature is lower that there is a common feature in above-mentioned area, minimum temperature even be lower than subzero 30 degrees centigrade, so Low Temperature Problems is the common issue with that these local wind power generators face; Find by long-term practice, there is following defective in the wind-driven generator in above-mentioned area: one, when ambient temperature is low, weather often can congeal, particularly rain in the winter time or the weather conditions of snowing under, accumulated ice and blade interior on the blade of wind-driven generator are congealed, and the result causes the aeroperformance of blade of wind-driven generator to change, and the wind wheeling rotor motion is uneven, thereby increase the load of wind-driven generator, even the defective that causes wind driven generator blade shell to be split up; Two, worst cold case can cause generator set operation component hydraulic performance decline, causes simultaneously maintenance cumbersome.
Summary of the invention
Goal of the invention of the present invention is: how to reduce the negative effect that low temperature environment causes blade of wind-driven generator; The anti-anti-accumulated ice type blade of wind-driven generator that congeals of a kind of homogeneous heating, efficiency of heating surface height, failure rate is low is proposed.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of anti-anti-accumulated ice type blade of wind-driven generator that congeals comprises the blade of wind-driven generator that composite material is made, and described blade of wind-driven generator is hollow-core construction, it is characterized in that: be provided with electromagnetic heater at described blade of wind-driven generator.
As preferred version, the present invention has also adopted following technological scheme:
Described electromagnetic heater comprises: control unit, excitation unit and inducting cell; Wherein: control unit is by the control to described excitation cell operation electric current, and then realization is to the control of inducting cell febrile state.
Described inducting cell is wire netting; And described wire netting is made by the ferroalloy materials with magnetic conduction function.
Described wire netting is knitted to the inside of described blade of wind-driven generator.
Described wire netting is pasted on the inwall of described blade of wind-driven generator.
The sealike colour of described wire netting is not less than 2mm, and mesh spacing is not more than 10mm.
The field coil of described excitation unit is arranged at the hollow parts of described blade of wind-driven generator.
Advantage and good effect that the present invention has are:
1. the present invention has overcome the defective that low temperature environment causes to blade of wind-driven generator by increasing electromagnetic heater at the traditional wind blade.
2. because the inductor coil among the present invention adopts metal mesh structure, thus homogeneous heating, can not cause the local temperature of blade of wind-driven generator too high or excessively low, guaranteed the normal operation of blade of wind-driven generator.
3. because the present invention adopts is electromagnetic heater, so control unit is by the control to excitation cell operation size of current, frequency, and then realizes the control to the inducting cell febrile state, thereby to add the process of heat control more flexible.
Description of drawings
Fig. 1 is the structural representation of the present invention's the first specific embodiment;
Fig. 2 is the structural representation of the present invention's the second specific embodiment.
Wherein: 1, blade of wind-driven generator; 2, inducting cell; 3, excitation unit; 4, control unit.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1, a kind of anti-anti-accumulated ice type blade of wind-driven generator that congeals comprises: blade of wind-driven generator 1, inducting cell 2, excitation unit 3 and control unit 4; Wherein: blade of wind-driven generator 1 is hollow-core construction, and blade of wind-driven generator 1 is made by composite material; Inducting cell 2 is pasted on the inwall of blade of wind-driven generator 1, is provided with excitation unit 3 in blade of wind-driven generator 1 hollow, and control unit 3 is by the control to excitation unit 3 operating currents, and then realizes the control to inducting cell 2 febrile states; As preferably: inducting cell 2 is wire netting; And wire netting is made by the ferroalloy materials with magnetic conduction function; The sealike colour of wire netting is not less than 2mm, and mesh spacing is not more than 10mm.The input end of control unit 3 is electrically connected with the power output terminal of wind-driven generator by the secondary carbon brush, control unit 3 at first changes Ac into direct current, then utilize the VDC modular converter of control unit 3 inside direct current to be changed into the Ac of high frequency, control unit 3 is transferred to excitation unit 3 with the high-frequency alternating current that produces at last, according to electromagnetic induction principle, under the effect of high frequency current, produce high frequency magnetic field around the excitation unit 3, when the magnetic line of force of high frequency variation passes through inducting cell 2, inducting cell 2 is inner to produce a large amount of inducing eddy-current, above-mentioned inducing eddy-current and then produce a large amount of heat energy; Because the wire netting that inducting cell 2 is made for ferroalloy materials, the heat energy that therefore produces is uniformly distributed in the inside of blade of wind-driven generator 1, thereby can prevent that local superheating from causing negative effect to blade of wind-driven generator 1; Adopt simultaneously the wire netting heating, i.e. employing face heating than a heating, has improved the efficient of heating.
See also Fig. 2, a kind of anti-anti-accumulated ice type blade of wind-driven generator that congeals comprises: blade of wind-driven generator 1, inducting cell 2, excitation unit 3 and control unit 4; Wherein: blade of wind-driven generator 1 is hollow-core construction, and blade of wind-driven generator 1 is made by composite material; Inducting cell 2 is knitted to the inwall of blade of wind-driven generator 1, is provided with excitation unit 3 in blade of wind-driven generator 1 hollow, and control unit 3 is by the control to excitation unit 3 operating currents, and then realizes the control to inducting cell 2 febrile states; As preferably: inducting cell 2 is wire netting; And wire netting is made by the ferroalloy materials with magnetic conduction function; The sealike colour of wire netting is not less than 2mm, and mesh spacing is not more than 10mm.The input end of control unit 3 is electrically connected with the power output terminal of wind-driven generator by the secondary carbon brush, control unit 3 at first changes Ac into direct current, then utilize the VDC modular converter of control unit 3 inside direct current to be changed into the Ac of high frequency, control unit 3 is transferred to excitation unit 3 with the high-frequency alternating current that produces at last, according to electromagnetic induction principle, under the effect of high frequency current, produce high frequency magnetic field around the excitation unit 3, when the magnetic line of force of high frequency variation passes through inducting cell 2, inducting cell 2 is inner to produce a large amount of inducing eddy-current, above-mentioned inducing eddy-current and then produce a large amount of heat energy; Because the wire netting that inducting cell 2 is made for ferroalloy materials, the heat energy that therefore produces is uniformly distributed in the inside of blade of wind-driven generator 1, thereby can prevent that local superheating from causing negative effect to blade of wind-driven generator 1; Adopt simultaneously the wire netting heating, i.e. employing face heating than a heating, has improved the efficient of heating.
The anti-anti-accumulated ice type blade of wind-driven generator that congeals among the present invention utilizes electromagnetic induction principle, adopt contactless mode of heating, by the heat energy of inducting cell 2 generations and then for blade of wind-driven generator 1 provides heat energy, make the inner and outer wall of blade of wind-driven generator 1 avoid congealing; In accumulated ice, can accelerate the speed of ice dissolution simultaneously, thereby so that wind-power electricity generation Bigpian 1 keeps its pneumatic property, reduce the rate of fault of wind-driven generator.
More than specific embodiments of the invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (7)
1. the anti-anti-accumulated ice type blade of wind-driven generator that congeals comprises the blade of wind-driven generator that composite material is made, and described blade of wind-driven generator is hollow-core construction, it is characterized in that: be provided with electromagnetic heater at described blade of wind-driven generator.
2. the anti-anti-accumulated ice type blade of wind-driven generator that congeals according to claim 1, it is characterized in that: described electromagnetic heater comprises: control unit, excitation unit and inducting cell; Wherein: control unit is by the control to described excitation cell operation electric current, and then realization is to the control of inducting cell febrile state.
3. the anti-anti-accumulated ice type blade of wind-driven generator that congeals according to claim 2, it is characterized in that: described inducting cell is wire netting; And described wire netting is made by the ferroalloy materials with magnetic conduction function.
4. the anti-anti-accumulated ice type blade of wind-driven generator that congeals according to claim 3, it is characterized in that: described wire netting is knitted to the inside of described blade of wind-driven generator.
5. the anti-anti-accumulated ice type blade of wind-driven generator that congeals according to claim 3, it is characterized in that: described wire netting is pasted on the inwall of described blade of wind-driven generator.
6. the anti-anti-accumulated ice type blade of wind-driven generator that congeals according to claim 3, it is characterized in that: the sealike colour of described wire netting is not less than 2mm, and mesh spacing is not more than 10mm.
7. the anti-anti-accumulated ice type blade of wind-driven generator that congeals according to claim 3, it is characterized in that: the field coil of described excitation unit is arranged at the hollow parts of described blade of wind-driven generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013317.4A CN103016278B (en) | 2013-01-15 | 2013-01-15 | Congelation-preventing anti-icing type wind turbine blade |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310013317.4A CN103016278B (en) | 2013-01-15 | 2013-01-15 | Congelation-preventing anti-icing type wind turbine blade |
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| Publication Number | Publication Date |
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| CN103016278A true CN103016278A (en) | 2013-04-03 |
| CN103016278B CN103016278B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310013317.4A Expired - Fee Related CN103016278B (en) | 2013-01-15 | 2013-01-15 | Congelation-preventing anti-icing type wind turbine blade |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762388A (en) * | 2016-12-05 | 2017-05-31 | 天津明阳风电设备有限公司 | A kind of wind-driven generator functional form blade |
| CN107037233A (en) * | 2016-01-04 | 2017-08-11 | 波音公司 | Anti-icing apparatus and method for tachometric survey detector |
| CN108119320A (en) * | 2016-11-30 | 2018-06-05 | 北京金风科创风电设备有限公司 | Self-generating heating deicing device, blade, wind driven generator and deicing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209951Y (en) * | 2008-02-29 | 2009-03-18 | 张来堂 | Electromagnetic air heater |
| CN201772628U (en) * | 2010-08-18 | 2011-03-23 | 陈家显 | Quick heating type electromagnetic heater |
| CN202250642U (en) * | 2011-09-22 | 2012-05-30 | 邓长明 | Anti-freezing wind driven generator blade |
| CN102661250A (en) * | 2012-05-08 | 2012-09-12 | 国电联合动力技术有限公司 | Anti-freezing fan blade |
-
2013
- 2013-01-15 CN CN201310013317.4A patent/CN103016278B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209951Y (en) * | 2008-02-29 | 2009-03-18 | 张来堂 | Electromagnetic air heater |
| CN201772628U (en) * | 2010-08-18 | 2011-03-23 | 陈家显 | Quick heating type electromagnetic heater |
| CN202250642U (en) * | 2011-09-22 | 2012-05-30 | 邓长明 | Anti-freezing wind driven generator blade |
| CN102661250A (en) * | 2012-05-08 | 2012-09-12 | 国电联合动力技术有限公司 | Anti-freezing fan blade |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037233A (en) * | 2016-01-04 | 2017-08-11 | 波音公司 | Anti-icing apparatus and method for tachometric survey detector |
| CN107037233B (en) * | 2016-01-04 | 2021-04-13 | 波音公司 | Apparatus and method for anti-icing of speed measurement probe |
| CN108119320A (en) * | 2016-11-30 | 2018-06-05 | 北京金风科创风电设备有限公司 | Self-generating heating deicing device, blade, wind driven generator and deicing method |
| CN108119320B (en) * | 2016-11-30 | 2024-02-23 | 北京金风科创风电设备有限公司 | Self-power-generation heating deicing device, blade, wind driven generator and deicing method |
| CN106762388A (en) * | 2016-12-05 | 2017-05-31 | 天津明阳风电设备有限公司 | A kind of wind-driven generator functional form blade |
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| Publication number | Publication date |
|---|---|
| CN103016278B (en) | 2015-07-22 |
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