CN207526758U - A kind of axial-flow fan blade with curved blade - Google Patents
A kind of axial-flow fan blade with curved blade Download PDFInfo
- Publication number
- CN207526758U CN207526758U CN201721660233.XU CN201721660233U CN207526758U CN 207526758 U CN207526758 U CN 207526758U CN 201721660233 U CN201721660233 U CN 201721660233U CN 207526758 U CN207526758 U CN 207526758U
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- blade
- wind
- axial
- wind turbine
- fan
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Abstract
The utility model discloses a kind of axial-flow fan blades with curved blade, including being located in wind turbine on cylinder equally distributed six blade and the guide rings on the inside of blower housing with the wind, multiple guide vanes are equipped in the guide ring, the blade with the wind is straight panel shape in wind inlet section, the blade with the wind is arc-shaped in wind outlet section, and the electric disc bearing of the guide ring both ends and wind turbine connects.The utility model reduces outlet air open area by arc section, can be effectively increased fan pressure, promotes the efficiency of whole wind turbine, is truly realized to energy-saving fan and changes.Guide vane drives guide vane rotation when entire wind turbine starts and when stopping, contributing to it is entire it is distinguished and admirable uniformly, achieve the purpose that take into account fan pressure and promote fan efficiency, and ensure that distinguished and admirable stability.
Description
Technical field
The utility model is related to wind turbine technical fields, and in particular to a kind of axial-flow fan blade with curved blade.
Background technology
Common wind turbine is general on blade construction with the wind all to use the straight structure type directly gone out, although such form exists
There is very big promotion on air quantity to wind turbine；But but there are many deficiencies on wind pressure and fan efficiency, it is difficult to meet national standard
《GB19761-2009 ventilator energy efficiencies limit value and efficiency grade》In requirement to fan efficiency grade.
Patent CN205714927U discloses a kind of axial-flow pump impeller of Varying-thickness section blades, including wheel hub, uniform peace
Axial blade in circumference of hub；The axial blade section thickness is heterogeneous texture form, i.e. axial blade from leaf
The section thickness of lateral root circumferentially progressively increases successively outside piece, the section thickness of blade both sides of the edge radially inwardly also according to
It is secondary to progressively increase, with the bolt that may be mounted in hub stud holes on axial blade.The impeller is due to the axis stream of use
Blade sectional thickness is variation, so increasing the stroke of a clearance flow, has reached reduction flow velocity, has increased stressed purpose.
But the thickness vane thickness by changing blade differs, and is easily damaged, while also easily increases energy
The heat that consumption and rotation generate, the unstable airflow of air outlet is difficult to ensure that, especially in electric motor starting and stop phase.
Invention content
It is an object of the invention to：It is led for being difficult to take into account in fan pressure existing for above-mentioned fan blade and fan efficiency
The problem of blade rapid wear, the unstable airflow of cause cannot be guaranteed, the utility model provide a kind of increase fan pressure, promote wind turbine
The axial-flow fan blade of efficiency.
The technical solution adopted by the present invention is as follows：
A kind of axial-flow fan blade with curved blade, including being located in wind turbine on cylinder equally distributed six blades with the wind
And the guide ring on the inside of blower housing, the guide ring is interior to be equipped with multiple guide vanes, and the blade with the wind is being entered the wind
For section for straight panel shape, the blade with the wind is arc-shaped in wind outlet section, and the electric disc bearing of the guide ring both ends and wind turbine connects.
Preferably, the upper straight-plate of the blade with the wind shape and the length ratio of arc-shaped are 2:1.
Preferably, the blade with the wind is 10~20 ° in the radian of wind inlet section.
Preferably, the groove for storing dust is provided on the guide vane.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The utility model by axial-flow fan blade by being divided into blade with the wind and guide vane, and blade is driven by motor with the wind
Middle cylinder and rotate, guide vane is rotated after blade with the wind drives air-flow by air stream drives, since blade includes straight panel shape with the wind
Wind inlet section and arc-shaped wind outlet section, the wind inlet section of straight panel shape can ensure that entire wind turbine air inlet is uniform；The outlet air of arc-shaped
Section can uniformly, stablize, the discharge of orderly slave air opening end, effectively reduction fan vibration and operation stability, while pass through circle
Segmental arc can be effectively increased fan pressure to reduce outlet air open area, promote the efficiency of whole wind turbine, be truly realized to section
It can wind turbine transformation.Guide vane drives guide vane to rotate when entire wind turbine starts with when stopping, and contributes to entire distinguished and admirable equal
It is even, achieve the purpose that take into account fan pressure and promote fan efficiency, and ensure that distinguished and admirable stability.
Description of the drawings
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the stereogram of the utility model blade with the wind；
It is marked in figure：Cylinder, 3- blade, 4- guide rings, 5- shells, 6- grooves with the wind in 1- guide vanes, 2-.
Specific embodiment
With reference to Fig. 1~2 pair, the present invention elaborates.
Embodiment one：
As shown in Fig. 1~2, a kind of axial-flow fan blade with curved blade, which is characterized in that including being located at cylinder in wind turbine
Equally distributed six blade 3 and the guide rings 4 positioned at the inside of blower housing 5 with the wind on 2 are equipped in the guide ring 4 more
A guide vane 1, the blade with the wind 3 are straight panel shape in wind inlet section, and the blade with the wind 3 is arc-shaped in wind outlet section, described
The electric disc bearing of 4 both ends of guide ring and wind turbine connects.
The present embodiment by axial-flow fan blade by being divided into blade 3 with the wind and guide vane 1, and blade 3 is driven by motor with the wind
It moves middle cylinder 2 and rotates, guide vane 1 is rotated after blade 3 with the wind drives air-flow by air stream drives, since blade 3 includes with the wind
The wind inlet section of straight panel shape and the wind outlet section of arc-shaped, the wind inlet section of straight panel shape can ensure that entire wind turbine air inlet is uniform；Arc-shaped
Wind outlet section can uniformly, stablize, the discharge of orderly slave air opening end, effectively reduce fan vibration and operation stability, simultaneously
By arc section to reduce outlet air open area, fan pressure can be effectively increased, the efficiency of whole wind turbine is promoted, really realizes
Change to energy-saving fan.Guide vane 1 drives guide vane rotation when entire wind turbine starts and when stopping, contributing to entire
It is distinguished and admirable uniform, achieve the purpose that take into account fan pressure and promote fan efficiency, and ensure that distinguished and admirable stability.
Embodiment two：
Preferably, 3 upper straight-plate shape of blade and the length ratio of arc-shaped are 2 with the wind described in embodiment one:1.Circular arc
The blade with the wind of shape accounts for 1/3rd of entire blade 3 with the wind, can increase distinguished and admirable while the stability for ensureing air-flow
Pressure.
Embodiment three：
Preferably, described in embodiment one with the wind blade 3 wind inlet section radian be 10~20 °.Radian is less than 10 ° not
Air-out area can be substantially reduced, radian is then easy to cause intake reduction more than 20 °, wind pressure is caused to become smaller.
Example IV：
The groove for storing dust is provided on guide vane 1 to optimize blade working state, described in embodiment one
6.Since blade 3 reduces outlet air open area with the wind, increase fan pressure, it is distinguished and admirable in dust be easier to be attached to blade
On, by setting groove on guide vane 1, guide vane 1 is in rotation process, since there are a speed with blade 3 with the wind
Degree is poor, and dust moves under the action of high speed centrifugation to marginal position from the central position, and setting groove 6 can more easily bicycle parking
Dust in distinguished and admirable, periodic replacement or cleaning guide vane 1 can effective dedustings.
It is the embodiment of the utility model as described above.The utility model is not limited to the above embodiment, anyone
It should learn the structure change made under the enlightenment of the utility model, it is every that there is same or similar skill with the utility model
Art scheme, each falls within the scope of protection of the utility model.
Claims (4)
1. a kind of axial-flow fan blade with curved blade, which is characterized in that equally distributed on cylinder in wind turbine (2) including being located at
Six blade (3) and the guide ring (4) on the inside of blower housing (5), the guide ring (4) are interior equipped with multiple water conservancy diversion with the wind
Blade (1), the blade with the wind (3) are straight panel shape in wind inlet section, and the blade with the wind (3) is arc-shaped in wind outlet section, described
The electric disc bearing of guide ring (4) both ends and wind turbine connects.
A kind of 2. axial-flow fan blade with curved blade according to claim 1, which is characterized in that the blade with the wind
(3) upper straight-plate shape and the length ratio of arc-shaped are 2:1.
3. a kind of axial-flow fan blade with curved blade according to claim 1 or 2, which is characterized in that it is described with the wind
Blade (3) is 10~20 ° in the radian of wind inlet section.
A kind of 4. axial-flow fan blade with curved blade according to claim 1, which is characterized in that the guide vane
(1) groove (6) for storing dust is provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660233.XU CN207526758U (en) | 2017-12-04 | 2017-12-04 | A kind of axial-flow fan blade with curved blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660233.XU CN207526758U (en) | 2017-12-04 | 2017-12-04 | A kind of axial-flow fan blade with curved blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526758U true CN207526758U (en) | 2018-06-22 |
Family
ID=62577370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721660233.XU Expired - Fee Related CN207526758U (en) | 2017-12-04 | 2017-12-04 | A kind of axial-flow fan blade with curved blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526758U (en) |
-
2017
- 2017-12-04 CN CN201721660233.XU patent/CN207526758U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20191204 |