CN202645881U - Wind driven generator with ice-removing device - Google Patents
Wind driven generator with ice-removing device Download PDFInfo
- Publication number
- CN202645881U CN202645881U CN201220216318XU CN201220216318U CN202645881U CN 202645881 U CN202645881 U CN 202645881U CN 201220216318X U CN201220216318X U CN 201220216318XU CN 201220216318 U CN201220216318 U CN 201220216318U CN 202645881 U CN202645881 U CN 202645881U
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- wind
- driven generator
- blade
- transducer
- piezoelectric ceramic
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Abstract
The utility model relates to a wind driven generator with an ice-removing device. The wind driven generator comprises a tower cylinder, a cabin and a blade, wherein a piezoelectric ceramic transducer is arranged on the blade. When an ultrasonic wave generated by the piezoelectric ceramic transducer is spread in an anisotropic blade, a speed difference is generated between the coated ice and the surface of the blade, so that a shear force is generated at a boundary of the coated ice and the blade and an ice layer on the surface of the blade is removed.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly a kind of wind-driven generator that is provided with deicer.
Background technique
For the wind power generating set that is installed in icing area, the leading edge of its blade and tower cylinder are easy to freeze.Particularly when blade surface freezes, one will affect the wind wheel dynamic balancing, shorten unit durability; Its two changes vane airfoil profile reduces lift coefficient, increases resistance coefficient, reduces unit output; Its three increases person, article are flown to ice the possibility of injury.It four causes wind-powered electricity generation unit non-programmed halt, affects the safe operation of electrical network.But, for the clammy local wind group of motors of being installed in of China, do not adopt at present this function of deicing, for the wind turbine unit of icing, generally take to shut down and process.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of wind-driven generator that is provided with deicer is provided, and it comprises tower cylinder, cabin and blade, wherein, is provided with piezoelectric ceramic transducer at described blade.
Preferably, described piezoelectric ceramic transducer has comprised a plurality of strip piezoelectric constant, and described piezoelectric ceramic transducer is installed in the leading edge place of blade.
Preferably, described piezoelectric ceramic transducer heeling-in is in blade.
Preferably, also be provided with a ultrasonic wave controller in the described cabin, described ultrasonic wave controller is electrically connected by slip ring and described piezoelectric ceramic transducer.
Preferably, also be provided with freezing sensor on the described wind-driven generator.
Preferably, described freezing sensor comprises temperature transducer and humidity transducer.
Preferably, be provided with the anemoclinograph support in described cabin, described freezing sensor is arranged on the anemoclinograph support.
Preferably, on described blade, also be provided with thickness transducer.
Preferably, described wind-driven generator also comprises a systems control division, places engine room inside, and described systems control division links to each other with thickness transducer, freezing sensor, ultrasonic wave controller.
The beneficial effects of the utility model are: when the ultrasound that produces by piezoelectric ceramic transducer is propagated in anisotropic blade, can produce speed difference in the surface of icing and blade, thereby in the at the interface generation shearing force of these two, thereby can remove the ice sheet of blade surface.
Description of drawings
Fig. 1 has illustrated the structural representation of the utility model wind-driven generator;
Fig. 2 has illustrated the local side view that amplifies in A district among Fig. 1;
Fig. 3 has illustrated the utility model wind-driven generator deicing step;
Fig. 4 has illustrated the schematic representation of the utility model piezoelectric ceramic transducer.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing embodiment of the present utility model is described in detail, it will be more clear making above-mentioned and other purpose of the present utility model, Characteristics and advantages.Reference character identical in whole accompanying drawings is indicated identical part.Deliberately do not draw in proportion accompanying drawing, focus on illustrating purport of the present utility model.
Below, be elaborated in conjunction with Fig. 1-4 pair the utility model.
As shown in Figure 1, provide a kind of wind-driven generator that is provided with deicer in the present embodiment, it comprises tower cylinder 11, cabin 12 and blade 13, wherein is provided with piezoelectric ceramic transducer at blade of wind-driven generator.When the ultrasound that this piezoelectric ceramic transducer produces is propagated in anisotropic blade, can produce speed difference in the surface of icing and blade, thereby in the at the interface generation shearing force of these two, when shearing force surpasses the maximum adhesion power 0.4MPa of ice, just can remove the ice sheet of blade surface.
This wind-driven generator also comprises a ultrasonic wave controller, it is installed in the cabin of wind-powered electricity generation unit, ultrasonic generator is electrically connected by slip ring (being similar to the brush in the motor) and piezoelectric ceramic transducer, the wind wheel of Wind turbine rotates, and the cabin is non-rotary, can realize being electrically connected by slip ring.Ultrasonic wave controller is controlled the work of piezoelectric ceramic transducer according to signal.
In the utility model, on the utility model wind-driven generator, also be provided with freezing sensor, be used for the icing situation of monitoring blade.Concrete, this freezing sensor has comprised temperature transducer and humidity transducer, by set temperature sensor and humidity transducer, can detect in real time atmospheric temperature and humidity, judge with this whether Wind turbine freezes, the utility model only adopts two sensors, and is cheap, can judge accurately whether Wind turbine freezes, thereby guarantee the safety of unit and the person.In the utility model, the quantity of temperature transducer and humidity transducer can arrange according to actual needs, and limiting value can be got to the data of a plurality of sensor collections by system or the mode of averaging is processed, and specifically sets according to actual demand.
In the utility model, special restriction is not done in the position of temperature transducer and humidity transducer, but preferred, as shown in Figure 1, temperature transducer and described humidity transducer are arranged on the cabin, close to fan blade, can not affect the balance of blade simultaneously yet.Concrete, shown in Fig. 1-2, Fig. 1 has illustrated the structural representation of the utility model wind-driven generator; As shown in the figure, wind-driven generator has comprised tower cylinder 11, cabin 12 and blade 13, and 12 are provided with anemoclinograph support 14 in the cabin.Fig. 2 has illustrated the local side view that amplifies in A district among Fig. 1; As shown in the figure, be provided with recording anemometer 141, humidity transducer 142, temperature transducer 143 and wind vane 144 at anemoclinograph support 14.
In the utility model, also be provided with thickness transducer 15 on the utility model wind-driven generator, concrete, this thickness transducer is arranged on the blade 13, for detection of icing thickness, thereby determines whether that needing to start piezoelectric transducer carries out de-icing work.
Fig. 4 has illustrated to be equipped with in the utility model the expansion schematic representation of piezoelectric ceramic transducer, dotted line A-A represents the center line that the blade inlet edge aerofoil profile is launched, as shown in the figure, this piezoelectric ceramic transducer has comprised a plurality of strip piezoelectric constant 20, because the upper and lower surface of leading edge is mainly concentrated at the icing position of wind power generation unit blade, and upper surface is more than lower surface, and accounts for about 1/3 of whole blade area, therefore preferred, piezoelectric ceramic transducer is installed in the leading edge place of blade.Preferred, when blade processing, with the piezoelectric ceramic transducer heeling-in in blade.
For realizing the effective control to wind-driven generator, wind-driven generator of the present utility model also comprises a systems control division, place engine room inside, systems control division links to each other with thickness transducer, freezing sensor, ultrasonic wave controller, systems control division receives the signal on freezing sensor and the thickness transducer, and signal processed, and then the work of control ultrasonic wave controller.
Illustrated the de-icing method of wind-driven generator of the present utility model such as Fig. 3, it comprises the steps:
Whether a. detect blade by freezing sensor freezes;
B. freeze when freezing sensor detects blade, detect the thickness T of freezing by thickness transducer again;
C. when icing thickness T when setting thickness T 0, start ultrasonic generator, and drive piezoelectric ceramic transducer and carry out de-icing work.
De-icing method of the present utility model, convenient and practical, need not shut down, can finish de-icing work, guarantee that blade normally moves, simultaneously, the utility model also is convenient to existing wind-driven generator is reequiped.
In above description, a lot of details have been set forth so that fully understand the utility model.But above description only is preferred embodiment of the present utility model, and the utility model can be implemented much to be different from alternate manner described here, so the utility model is not subjected to the restriction of top disclosed implementation.Any skilled personnel are not breaking away from the technical solutions of the utility model scope situation simultaneously, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Every content that does not break away from technical solutions of the utility model, any simple modification, equivalent variations and modification according to technical spirit of the present utility model is done above embodiment all still belong to the utility model technology.
Claims (9)
1. wind-driven generator that is provided with deicer, it comprises tower cylinder, cabin and blade, it is characterized in that, is provided with piezoelectric ceramic transducer at described blade.
2. wind-driven generator as claimed in claim 1 is characterized in that, described piezoelectric ceramic transducer has comprised a plurality of strip piezoelectric constant, and described piezoelectric ceramic transducer is installed in the leading edge place of blade.
3. wind-driven generator as claimed in claim 1 is characterized in that, described piezoelectric ceramic transducer heeling-in is in blade.
4. wind-driven generator as claimed in claim 1 is characterized in that, also is provided with a ultrasonic wave controller in the described cabin, and described ultrasonic wave controller is electrically connected by slip ring and described piezoelectric ceramic transducer.
5. wind-driven generator as claimed in claim 1 is characterized in that, also is provided with freezing sensor on described wind-driven generator.
6. wind-driven generator as claimed in claim 5 is characterized in that, described freezing sensor comprises temperature transducer and humidity transducer.
7. wind-driven generator as claimed in claim 5 is characterized in that, is provided with the anemoclinograph support in described cabin, and described freezing sensor is arranged on the anemoclinograph support.
8. wind-driven generator as claimed in claim 5 is characterized in that, also is provided with thickness transducer on described blade.
9. wind-driven generator as claimed in claim 8 is characterized in that, described wind-driven generator also comprises a systems control division, places engine room inside, and described systems control division links to each other with thickness transducer, freezing sensor, ultrasonic wave controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220216318XU CN202645881U (en) | 2012-05-15 | 2012-05-15 | Wind driven generator with ice-removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220216318XU CN202645881U (en) | 2012-05-15 | 2012-05-15 | Wind driven generator with ice-removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645881U true CN202645881U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220216318XU Expired - Lifetime CN202645881U (en) | 2012-05-15 | 2012-05-15 | Wind driven generator with ice-removing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202645881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113339211A (en) * | 2021-06-21 | 2021-09-03 | 中能电力科技开发有限公司 | Blade coating and ultrasonic wave combined anti-icing and deicing method |
-
2012
- 2012-05-15 CN CN201220216318XU patent/CN202645881U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113339211A (en) * | 2021-06-21 | 2021-09-03 | 中能电力科技开发有限公司 | Blade coating and ultrasonic wave combined anti-icing and deicing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Person in charge of Nanjing Wind Power Technology Co., Ltd. Document name: Notification that Application Deemed not to be Proposed |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Ningyuan Economic Development Zone Binjiang Road, Jiangning District of Nanjing City, Jiangsu province 211100 Patentee after: Nanjing Wind Power Technology Co., Ltd. Address before: 211100 Jiangsu city of Nanjing province Jiangning Science Park Yuehua road and Duangong Road intersection Patentee before: Nanjing Wind Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |