CN202811219U - Blower with concavo-convex guide edges - Google Patents
Blower with concavo-convex guide edges Download PDFInfo
- Publication number
- CN202811219U CN202811219U CN2012202169716U CN201220216971U CN202811219U CN 202811219 U CN202811219 U CN 202811219U CN 2012202169716 U CN2012202169716 U CN 2012202169716U CN 201220216971 U CN201220216971 U CN 201220216971U CN 202811219 U CN202811219 U CN 202811219U
- Authority
- CN
- China
- Prior art keywords
- blade
- concavo
- guide lug
- sinusoidal curve
- wheel hub
- 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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- Y02E10/722—
Abstract
The utility model aims to provide a blower with concavo-convex guide edges, which comprises a hub and blades, wherein the blades are mounted on the hub; each blade comprises a straight-line-shaped blade following edge and a sinusoid-shaped blade guide edge; and a reversely rotating eddy is generated by the blade guide edges when the blade rotates. According to the blower provided by the utility model, only the outline shape of the blades is changed while no auxiliary device is added. More electric energy can be generated through conversion during wind power generation.
Description
Technical field
The utility model relates to a kind of wind energy field, specifically blower fan.
Background technique
Wind energy is huge take its amount of accumulateing as green energy resource, can regenerate, advantage widely distributed, that do not have to pollute is favored by various countries.Converting wind energy to electric energy has had ripe technology, and development potentiality and application prospect are arranged very much.Quality and the fan efficiency of fan blade performance are closely related.Therefore, a kind of blower fan efficient and function admirable of exploitation is very meaningful.
Summary of the invention
When being to be provided at wind-power electricity generation, the purpose of this utility model can change the concavo-convex blower fan of guide lug of more electric energy.
The purpose of this utility model is achieved in that
The concavo-convex blower fan of the utility model guide lug comprises wheel hub, blade, and blades installation is on wheel hub, it is characterized in that: described blade comprises blade lagging edge and blade guide lug, the blade lagging edge is shaped as straight line, and the blade guide lug is shaped as sinusoidal curve, and the blade guide lug produces the whirlpool of counterrotating during blade rotary.
The utility model can also comprise:
1, R is for arriving the radius of blade edge take the wheel hub center as the center of circle, and h is the minimum range of sinusoidal curve initial position and root of blade on the blade, and r is the sinusoidal curve wave height, R:r:h=110:7:30.
2, the number of described blade is 3, and to the radius of blade edge as 0.55m, the minimum range of sinusoidal curve initial position and root of blade is 0.15m on the blade take the wheel hub center as the center of circle, and the sinusoidal curve wave height is 0.035m.
Advantage of the present utility model is: the utility model only changes the form structure of blade, and does not increase additional device.When wind-power electricity generation, can change more electric energy.
Description of drawings
Fig. 1 is concavo-convex fan blade schematic representation;
Fig. 2 is blade profile contrast schematic representation.
Embodiment
For example the utility model is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～2, the concavo-convex blower fan of the utility model guide lug, comprise wheel hub 1, blade 2, blade 2 is installed on the wheel hub 1, blade 2 comprises blade lagging edge 4 and blade guide lug 3, blade lagging edge 4 is shaped as straight line, blade guide lug 3 is shaped as sinusoidal curve, blade guide lug 3 produces the whirlpool of counterrotating during blade 2 rotation, R is for arriving the radius at blade 2 edges as the center of circle take wheel hub 1 center, h is the minimum range of sinusoidal curve initial position and blade 2 roots on the blade 2, and r is the sinusoidal curve wave height, R:r:h=110:7:30.
The number of blade 2 is 3, and the below gives one group of design parameter of blowing machine:
To the radius at blade 2 edges as 0.55m, the minimum range of sinusoidal curve initial position and blade 2 roots is 0.15m on the blade 2 take wheel hub 1 center as the center of circle, and the sinusoidal curve wave height is 0.035m.
Concavo-convex fan blade 2 is when work, and concavo-convex guide margin 3 places of blade 2 can produce the whirlpool of counterrotating, and concavo-convex guide margin 3 can absorb the whirlpool that produces, and this part energy is re-injected in the fluid, improves the aeroperformance of blade.Owing to be that sinusoidal curve and blade 2 root places do not add concavo-convex tubercle, so the aspect ratio of concavo-convex fan blade 2 is identical with the aspect ratio of parent form fan blade.The aerofoil profile of blade is NACA4412, and guarantees that disk ratio is identical with the parent form fan blade.
Claims (3)
1. the concavo-convex blower fan of guide lug comprises wheel hub, blade, and blades installation is on wheel hub, it is characterized in that: described blade comprises blade lagging edge and blade guide lug, the blade lagging edge is shaped as straight line, and the blade guide lug is shaped as sinusoidal curve, and the blade guide lug produces the whirlpool of counterrotating during blade rotary.
2. the concavo-convex blower fan of guide lug according to claim 1, it is characterized in that: R is for arriving the radius of blade edge take the wheel hub center as the center of circle, h is the minimum range of sinusoidal curve initial position and root of blade on the blade, and r is the sinusoidal curve wave height, R: r: h=110:7:30.
3. the concavo-convex blower fan of guide lug according to claim 1 and 2, it is characterized in that: the number of described blade is 3, take the wheel hub center as the center of circle to the radius of blade edge as 0.55m, the minimum range of sinusoidal curve initial position and root of blade is 0.15m on the blade, and the sinusoidal curve wave height is 0.035m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202169716U CN202811219U (en) | 2012-05-15 | 2012-05-15 | Blower with concavo-convex guide edges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202169716U CN202811219U (en) | 2012-05-15 | 2012-05-15 | Blower with concavo-convex guide edges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811219U true CN202811219U (en) | 2013-03-20 |
Family
ID=47870104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202169716U Expired - Fee Related CN202811219U (en) | 2012-05-15 | 2012-05-15 | Blower with concavo-convex guide edges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678479A (en) * | 2012-05-15 | 2012-09-19 | 哈尔滨工程大学 | Guide edge concave-convex fan |
-
2012
- 2012-05-15 CN CN2012202169716U patent/CN202811219U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678479A (en) * | 2012-05-15 | 2012-09-19 | 哈尔滨工程大学 | Guide edge concave-convex fan |
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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: 20130320 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |