CN103016278B - Congelation-preventing anti-icing type wind turbine blade - Google Patents
Congelation-preventing anti-icing type wind turbine blade Download PDFInfo
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- CN103016278B CN103016278B CN201310013317.4A CN201310013317A CN103016278B CN 103016278 B CN103016278 B CN 103016278B CN 201310013317 A CN201310013317 A CN 201310013317A CN 103016278 B CN103016278 B CN 103016278B
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- wind
- wind turbine
- turbine blade
- driven generator
- blade
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- Y02E10/722—
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- Wind Motors (AREA)
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 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 is more and more 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 above-mentioned area is distributed in; Obviously, it is exactly that winter temperature is lower that above-mentioned area exists a common feature, and minimum temperature is even lower than subzero 30 degrees Celsius, and therefore Low Temperature Problems is the common issue that these local wind power generators face; Found by long-term practice, there is following defect in the wind-driven generator in above-mentioned area: one, when ambient temperature is lower, often can congeal weather, particularly in the winter time rain or weather conditions of snowing under, accumulated ice on blade of wind-driven generator and blade interior are congealed, and result causes the aeroperformance of blade of wind-driven generator to change, and wind wheeling rotor motion is uneven, thus increase the load of wind-driven generator, even cause the defect that wind driven generator blade shell is split up; Two, worst cold case can cause generator set to run component hydraulic performance decline, causes maintenance cumbersome simultaneously.
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; Propose that a kind of homogeneous heating, the efficiency of heating surface are high, the anti-anti-accumulated ice type blade of wind-driven generator that congeals of failure rate is low.
The technological scheme that the present invention takes for the technical problem existed in solution known technology is:
A kind of anti-anti-accumulated ice type blade of wind-driven generator that congeals, comprise 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: on described blade of wind-driven generator, be provided with electromagnetic heater.
Preferably, the present invention additionally uses following technological scheme:
Described electromagnetic heater comprises: control unit, Energizing unit and inducting cell; Wherein: control unit by the control to described Energizing unit operating current, and then realizes the control to inducting cell febrile state.
Described inducting cell is wire netting; And described wire netting is made up of 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 Energizing unit is arranged at the hollow parts of described blade of wind-driven generator.
The advantage that the present invention has and good effect are:
1. the present invention by increasing electromagnetic heater on traditional wind blade, overcomes the defect that low temperature environment causes to blade of wind-driven generator.
2., because the inductor coil in the present invention adopts metal mesh structure, therefore homogeneous heating, the local temperature of blade of wind-driven generator can not be caused too high or too low, ensure that the normal work of blade of wind-driven generator.
3. due to the present invention's employing is electromagnetic heater, and therefore control unit is by the control to Energizing unit operating current size, frequency, and then realizes the control to inducting cell febrile state, thus makes the process of computer heating control more flexible.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention first specific embodiment;
Fig. 2 is the structural representation of the present invention second specific embodiment.
Wherein: 1, blade of wind-driven generator; 2, inducting cell; 3, Energizing unit; 4, control unit.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of anti-anti-accumulated ice type blade of wind-driven generator that congeals, comprising: blade of wind-driven generator 1, inducting cell 2, Energizing 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 up of composite material; Inducting cell 2 is pasted on the inwall of blade of wind-driven generator 1, blade of wind-driven generator 1 hollow in be provided with Energizing unit 3, control unit 3 by the control to Energizing unit 3 operating current, and then realizes the control to inducting cell 2 febrile state; As preferably: inducting cell 2 is wire netting; And wire netting is made up of 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 secondary carbon brush, first control unit 3 changes Ac into direct current, then the VDC modular converter of control unit 3 inside is utilized direct current to be changed into the Ac of high frequency, the high-frequency alternating current of generation is finally transferred to Energizing unit 3 by control unit 3, according to electromagnetic induction principle, high frequency magnetic field is produced around Energizing unit 3 under the effect of high frequency current, when the magnetic line of force of high frequency change is by inducting cell 2, inducting cell 2 inside produces a large amount of inducing eddy-current, above-mentioned inducing eddy-current and then produce a large amount of heat energy, due to the wire netting that inducting cell 2 is made for ferroalloy materials, the heat energy therefore produced is uniformly distributed in the inside of blade of wind-driven generator 1, thus can prevent local superheating from causing negative effect to blade of wind-driven generator 1, adopt wire netting heating simultaneously, namely adopt face heating, compared to a heating, improve the efficiency of heating.
Refer to Fig. 2, a kind of anti-anti-accumulated ice type blade of wind-driven generator that congeals, comprising: blade of wind-driven generator 1, inducting cell 2, Energizing 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 up of composite material; Inducting cell 2 is knitted to the inwall of blade of wind-driven generator 1, blade of wind-driven generator 1 hollow in be provided with Energizing unit 3, control unit 3 by the control to Energizing unit 3 operating current, and then realizes the control to inducting cell 2 febrile state; As preferably: inducting cell 2 is wire netting; And wire netting is made up of 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 secondary carbon brush, first control unit 3 changes Ac into direct current, then the VDC modular converter of control unit 3 inside is utilized direct current to be changed into the Ac of high frequency, the high-frequency alternating current of generation is finally transferred to Energizing unit 3 by control unit 3, according to electromagnetic induction principle, high frequency magnetic field is produced around Energizing unit 3 under the effect of high frequency current, when the magnetic line of force of high frequency change is by inducting cell 2, inducting cell 2 inside produces a large amount of inducing eddy-current, above-mentioned inducing eddy-current and then produce a large amount of heat energy, due to the wire netting that inducting cell 2 is made for ferroalloy materials, the heat energy therefore produced is uniformly distributed in the inside of blade of wind-driven generator 1, thus can prevent local superheating from causing negative effect to blade of wind-driven generator 1, adopt wire netting heating simultaneously, namely adopt face heating, compared to a heating, improve the efficiency of heating.
The anti-anti-accumulated ice type blade of wind-driven generator that congeals in the present invention utilizes electromagnetic induction principle, adopt non-contact thermal mode, the heat energy produced by inducting cell 2 and then provide heat energy for blade of wind-driven generator 1, makes the inner and outer wall of blade of wind-driven generator 1 avoid congealing; Simultaneously when accumulated ice, the speed of ice dissolution can be accelerated, thus make wind-power electricity generation Bigpian 1 keep its pneumatic property, reduce the rate of fault of wind-driven generator.
Above specific embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (1)
1. the anti-anti-accumulated ice type blade of wind-driven generator that congeals, comprise 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: on described blade of wind-driven generator, be provided with electromagnetic heater; Described electromagnetic heater comprises: control unit, Energizing unit and inducting cell; Wherein: control unit by the control to described Energizing unit operating current, and then realizes the control to inducting cell febrile state; Described inducting cell is wire netting; And described wire netting is made up of the ferroalloy materials with magnetic conduction function; Described wire netting is knitted to the inside 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 Energizing 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN103016278A CN103016278A (en) | 2013-04-03 |
| CN103016278B true CN103016278B (en) | 2015-07-22 |
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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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10160548B2 (en) * | 2016-01-04 | 2018-12-25 | The Boeing Company | Apparatuses and methods for anti-icing of speed measurement probes |
| 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 |
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 |
-
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 |
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| CN103016278A (en) | 2013-04-03 |
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