CN204003266U - Decompression speed change wind blade - Google Patents
Decompression speed change wind blade Download PDFInfo
- Publication number
- CN204003266U CN204003266U CN201420472071.7U CN201420472071U CN204003266U CN 204003266 U CN204003266 U CN 204003266U CN 201420472071 U CN201420472071 U CN 201420472071U CN 204003266 U CN204003266 U CN 204003266U
- Authority
- CN
- China
- Prior art keywords
- blade
- wind
- fan blade
- door closer
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02E10/74—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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- Wind Motors (AREA)
Abstract
The utility model provides a kind of decompression speed change wind blade, and blade is contained in fan blade housing, and fan blade housing is arranged on wheel disc; Blade and fan blade housing, by wearing axle gemel connection, are provided with a pair of door closer on blade and fan blade housing; This reality is novel is decompression speed change wind blade, in blade outer end, has installed door closer additional, when wind-force reaches 2.6-3.0 level left and right, can normally work, and wind-force rises to 6-10 level when above, and door closer is opened still and can normally be worked.Fan blade changes blowing area with the wind, and no matter wind speed size can normally be moved, and so not only increases the Security of unit, and can also obtain larger power coefficient.The profile of fan blade is to install additional and wear axle hinge through careful design, so that minimum cost is paid in realization, obtains maximum delivery efficiency.Design proposal mainly determines by pneumatic demand, and design-build cost is reasonable, has increased the working efficiency of wind-driven generator, increases the generating capacity of motor.
Description
Technical field
The utility model relates to the blade that wind-force electrical machinery is used, the wind blade of the speed change that particularly can reduce pressure.
Background technique
Wind-power electricity generation utilization be natural energy resources, utilize wind-force to drive air vane rotation, then see through booster engine the speed of rotation is promoted, impel generator generating.According to current windmill technology, be approximately the gentle breeze speed (degree of gentle breeze) of three meters per second, just can start generating.Wind energy is the most clean, and one of free of contamination renewable energy sources utilizes wind-power electricity generation there is no fuel problem, also can not produce radiation, can be to atmospheric pollution yet, and very environmental protection.Survey according to brainstrust is estimated, and global available wind energy resources is 20,000,000,000 kilowatts, is approximately to utilize 10 times of waterpower resourses.If utilize 1% wind energy energy, can produce the electric weight of the existing generating total amount 8%～9% in the world.According to relevant department's prediction, China can utilize wind energy resources to be about 1,600,000,000 kilowatts, wherein has be about 25,300,000,000 kilowatts of fine value.China utilizes wind-power electricity generation since the fifties, and to the beginning of the eighties, it is ripe and stable that minitype wind power generation technology is tending towards.To 1994 the end of the year China in Inner Mongol, Xinjiang and the ground such as coastal promotes small-sized wind power generator, and built 130,000.In recent years, China also takes much count of wind-power electricity generation, has been selected in the abundant areas of wind resource such as Guangdong, Hainan, Fujian, Shandong, Inner Mongol, Xinjiang and has greatly developed wind-powered electricity generation.
At present, formulating long-range wind-power electricity generation planning, the emphasis of country's new energy policy is also to greatly develop with Speeding up development to utilize wind-power electricity generation, use wind-driven generator, be exactly constantly wind energy to be become to the standard civil power that our family is used, the degree of its saving is that significantly the one family electricity consumption of a year only needs the cost of 20 yuan of acids.And now due to technological progress, a street lamp of not spending can be made in mountain area throughout the year; Expressway can be made of it the road sign lamp at night; The child in mountain area self-study at night under fluorescent light; The little high-rise roof in city is available wind motor also, and this not only saves but also is real green power supply.Home-use wind-driven generator, not only can prevent from having a power failure, and can also increase delight of life.
The device that wind-driven generator is is electric energy by wind energy transformation, mainly by blade, generator, mechanical part and electric component form.At present the blade design of the medium and small wind-driven generator of China mostly is 3, and generally the rotating speed of fan blade is approximately 7 to 9 times of wind speed, and rotating speed is higher, blade quantity is more, also just mean that blade dimensions will be done narrower, thinner, thereby be difficult to guarantee that blade has enough intensity.And when rotating speed is too fast marquis's blade after catch wind efficiency and also decrease, noise increases, long term wear easily causes loosened screw, comes off, overcast and rainy underground moist seat vibration, has potential safety hazard; Be more vulnerable to the injury of environmental attack and bird strike.
The setting angle of in the past determining blade sheet is constant, and the rotating speed of constant speed vane rotary is also constant; When running into high wind, blade is easily destroyed, and can not normally move, and maintenance difficulty is large.The fan blade of present wind-force electrical machinery can normally be worked when wind-force reaches 2.6-3.0 level left and right, and wind-force rises to 6-10 level when above, cisco unity malfunction.Because motor blower fan blowing area is little now, the Security of unit weakens, and can not obtain larger power coefficient.
Model utility content
The purpose of this utility model is in order to address the above problem, and a kind of decompression speed change wind blade is provided, and fan blade changes blowing area with the wind, no matter wind strong wind is little can normally be worked, increase the Security of unit, increased the generating efficiency of wind-force electrical machinery, saved cost.
Described object is achieved by the following scheme:
A decompression speed change wind blade, comprises blade body, and described blade body is contained in fan blade housing, and described fan blade housing is arranged on wheel disc; Between described blade body and fan blade housing, by gemel connection, between the edge of described blade body and fan blade housing, by door closer, be connected.
Preferred version is, between a side of described blade body and fan blade housing, by gemel connection, between opposite side/both sides/tri-side of described blade body and fan blade housing, by door closer, is connected.
Preferred version is that described door closer is at least 2, and is arranged on the same side of blade body.
Another kind of preferred version is that described door closer is at least 2, is separately positioned on the top and bottom of blade body.
Preferred version is that described blade body and fan blade housing are all rectangular or trapezoidal.
The beneficial effects of the utility model are: this reality is novel is decompression speed change wind blade, in blade body, fan blade housing is set outward and has installed door closer additional, when wind-force reaches 2.6-3.0 level left and right, can normally work, wind-force rises to 6-10 level when above, and door closer is opened still and can normally be worked.Blade body changes blowing area with the wind, and no matter wind speed size can normally be moved, and so not only increases the Security of unit, and can also obtain larger power coefficient.Blade body profile be to install additional and wear axle hinge through careful design, to realize, pay minimum cost and obtain maximum delivery efficiency.Design proposal mainly determines by pneumatic demand, and design-build cost is reasonable, has increased the working efficiency of wind-driven generator, increases the generating capacity of motor.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment two structural representation.
Plane structure schematic diagram when Fig. 2 is the use of the utility model blade.
Perspective view when Fig. 3 is the use of the utility model blade.
Wherein, 1. wheel disc, 2. bearing housing, 3. fan blade running shaft, 4. fan blade housing, 5. hinge, 6. blade body, 7. door closer.
Embodiment
Below in conjunction with accompanying drawing, elaborate the utility model preferred embodiment.
Embodiment one:
The utility model is decompression speed change wind blade, and blade body 6 is contained in fan blade housing, and fan blade housing 4 is arranged on wheel disc 1, and blade body and fan blade housing are all rectangular; Between described blade body 6 and fan blade housing 4, by gemel connection, hinge, for wearing axle hinge, is worn axle hinge and is arranged on the longitudinal neutral position of blade body or left-of-center position; Between the edge of described blade body and fan blade housing, by door closer, being connected, can be that four limit portions all arrange door closer.
Embodiment two:
The present embodiment and embodiment's one difference is, between one side of described blade body 6 and fan blade housing, pass through gemel connection, between the opposite side of described blade body and housing, by door closer, be connected, as shown in Figure 1, door closer 7 is 2, also can be arranged to as required 3,4 or more, as long as be evenly arranged; Blade body is made by metal or glass fibre reinforced plastics.
During work, the wind-driven generator that decompression speed change wind blade is installed when wind-force reaches 2.6-3.0 level left and right can normally be worked, and when wind-force rises to 6-10 level when above, door closer is opened, and has reduced blowing area, still can normally work.Blade can change blowing area with the wind along the axis rotation of self, and no matter wind speed size can normally be moved.Due to the change of attack angle of blade, can obtain larger power coefficient like this, increase the Security of unit.Decompression speed change wind blade is applicable to various wind-driven generators, when running into superpower wind, and the blowing area of adjusting vane with the wind, omnirange acting, conversion ratio is high, startup is fast, and generating efficiency is high, and safety coefficient is large.
Embodiment three:
The present embodiment and embodiment's two differences are, door closer is 2, be separately positioned on the top and bottom of blade body,, one side of blade body is connected with fan blade housing by hinge, the upper end of blade body is connected with fan blade housing by a door closer, and the lower end of blade body is connected with fan blade housing by a door closer.Certainly, also can be arranged to following structure: between one side of blade body and fan blade housing,, by gemel connection, another three limits of blade body are all passed through (or two, a three or more) door closer and are connected with fan blade housing.
Embodiment four:
The present embodiment and embodiment's three differences are, door closer is 4, be evenly distributed in the top and bottom of blade body,, one side of blade body is connected with fan blade housing by hinge, the upper end of blade body is connected with fan blade housing by two door closers, and the lower end of blade body is connected with fan blade housing by two door closers.
Claims (5)
1. a decompression speed change wind blade, is characterized in that comprising blade body, and described blade body is contained in fan blade housing, and described fan blade housing is arranged on wheel disc; Between described blade body and fan blade housing, by gemel connection, between the edge of described blade body and fan blade housing, by door closer, be connected.
2. blade according to claim 1, is characterized in that between a side of described blade body and fan blade housing by gemel connection, between opposite side/both sides/tri-side of described blade body and fan blade housing, by door closer, is connected.
3. blade according to claim 1, is characterized in that described door closer is at least 2, and is arranged on the same side of blade body.
4. blade according to claim 1, is characterized in that described door closer is at least 2, is separately positioned on the top and bottom of blade body.
5. according to blade described in claim 1-4 any one, it is characterized in that described blade body and fan blade housing are all rectangular or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472071.7U CN204003266U (en) | 2014-08-21 | 2014-08-21 | Decompression speed change wind blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472071.7U CN204003266U (en) | 2014-08-21 | 2014-08-21 | Decompression speed change wind blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003266U true CN204003266U (en) | 2014-12-10 |
Family
ID=52043276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420472071.7U Expired - Fee Related CN204003266U (en) | 2014-08-21 | 2014-08-21 | Decompression speed change wind blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632535A (en) * | 2014-12-26 | 2015-05-20 | 国家电网公司 | Pressure reduction wind driven generator |
-
2014
- 2014-08-21 CN CN201420472071.7U patent/CN204003266U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632535A (en) * | 2014-12-26 | 2015-05-20 | 国家电网公司 | Pressure reduction wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |