CN102661290A - Fan blade for industrial fan - Google Patents
Fan blade for industrial fan Download PDFInfo
- Publication number
- CN102661290A CN102661290A CN2012101311757A CN201210131175A CN102661290A CN 102661290 A CN102661290 A CN 102661290A CN 2012101311757 A CN2012101311757 A CN 2012101311757A CN 201210131175 A CN201210131175 A CN 201210131175A CN 102661290 A CN102661290 A CN 102661290A
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- CN
- China
- Prior art keywords
- flabellum
- gas guide
- fan
- industrial fan
- guide board
- 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.)
- Pending
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan blade for an industrial fan. The fan blade comprises a fan blade body, wherein a gas guide plate is arranged on one side of the fan blade body; a plurality of sawtoothed bulges which are distributed along the length direction of the gas guide plate are formed on the gas guide plate; and a sawtoothed recess is formed between every two adjacent sawtoothed bulges. By the fan blade for the industrial fan, the gas flow noise during operation of the industrial fan can be reduced, and the energy efficiency ratio of the industrial fan is improved.
Description
Technical field
The present invention relates to a kind of flabellum of Industrial fan.
Background technique
Because the flabellum average physique of Industrial fan is bigger, it can send bigger pneumatic noise when work.And the Energy Efficiency Ratio of existing Industrial fan also has much room for improvement.
Summary of the invention
The present invention seeks to: to the problems referred to above, a kind of flabellum of Industrial fan is provided, the pneumatic noise when being intended to reduce Industrial fan work, the Energy Efficiency Ratio of raising Industrial fan.
Technological scheme of the present invention is: a kind of flabellum of Industrial fan; Comprise the flabellum body; On the side of said flabellum body gas guide board is installed; Be shaped on several flexuoses convexities that distribute along the gas guide board length direction on the said gas guide board, be formed with the flexuose trench between every adjacent two flexuose convexities.
Said flexuose convexity has crown portion and tooth root portion, and the protruding thickness of said flexuose is by crown portion to tooth root portion thickening gradually.
Be shaped on the cross section on the said gas guide board and be the draw-in groove of T font, have only the cross section of matching to be the card rib of T font on the said flabellum body with said draw-in groove.
Advantage of the present invention is: compare with existing flabellum shape, Industrial fan flabellum of the present invention can reduce flabellum end face wind cutting place resistance, and fan efficiency can improve 10%, and pneumatic noise can be reduced to below the 58dBA.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 and Fig. 2 are the structural representation of the embodiment of the invention;
Fig. 3 is the linkage structure schematic representation between gas guide board and flabellum body in the embodiment of the invention;
Wherein: 1-flabellum body, 11-card rib, the 2-gas guide board, the 21-flexuose is protruding, 211-crown portion, 212 tooth root portions, 22-flexuose trench, 3-extends out the formula baffle.
Embodiment
As shown in Figure 1, the flabellum of present embodiment Industrial fan comprises flabellum body 1, on the side of said flabellum body 1 gas guide board 2 is installed.As shown in Figure 3; Concrete fit between gas guide board 2 and the flabellum body 1 is: be shaped on the draw-in groove (scheming not shown) that the cross section is the T font on the gas guide board 2, have only the cross section of matching with said draw-in groove also to be the card rib 11 of T font on the said flabellum body 1; During assembling, the card rib 11 on the flabellum body 1 is snapped in the draw-in groove on the gas guide board 2.
Be shaped on several flexuoses convexities 21 that distribute along the gas guide board length direction on the said gas guide board 2, be formed with flexuose trench 22 between every adjacent two flexuoses protruding 21.
And this example also is equipped with at the end (end) of said flabellum body 1 and extends out formula baffle 3, to eliminate the terminal eddy current of flabellum, reaches noise reduction, can also change airflow direction simultaneously, the air-flow diffusion area is increased, like Fig. 2.
Said flexuose protruding 21 has crown portion 211 and tooth root portion 212, and the thickness of said flexuose protruding 21 is by crown portion 211 to tooth root portion 212 thickening gradually, like Fig. 3.
The working principle reference of present embodiment (arrow on figure right side is represented air flow stream) shown in Figure 1:
When a, horizontal gas flow run into the crown portion 211 of sawtooth projection 21, meeting " soldier divides three tunnel ", a curb sawtooth projection upper surface (or lower surface) is kept straight on forward, and the slope skew of the other two curb sawtooth projection left and right sides is flowed.So, the resistance to motion of flabellum is greatly reduced, the pneumatic noise when not only having reduced fan work, and reduced power consumption.
The horizontal gas flow of position between b, crown portion 211 and the tooth root portion 212 (place, slope), meeting " the army branched out into two columns ", a curb sawtooth projection upper surface (or lower surface) is kept straight on forward, and the slope skew of another curb sawtooth projection sidepiece is flowed.Reduce the resistance to motion of flabellum equally, reduced power consumption.
The air-flow that the horizontal gas flow at c, trench 22 the lowest point place and sloped sides are come pools together and flows through the flabellum surface jointly and cause the terminal air-flow of flabellum air-out to present the intermittent type strength distribution, and air pressure uprises, and that looses is far away.
It is thus clear that, after air-flow runs into the flexuose convexity, can change direction of advance, become the multichannel air-flow, finally form focused airflow at trench the lowest point place, air pressure is higher, spreads far, has reduced the resistance to motion of flabellum, has reduced power consumption.
Certainly, the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let people can understand content of the present invention and implements according to this, can not limit protection scope of the present invention with this.The all spirit of main technical schemes is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (4)
1. the flabellum of an Industrial fan; Comprise flabellum body (1); It is characterized in that: on the side of said flabellum body (1) gas guide board (2) is installed; Be shaped on several flexuoses protruding (21) that distribute along the gas guide board length direction on the said gas guide board (2), be formed with flexuose trench (22) between every adjacent two flexuoses protruding (21).
2. the flabellum of Industrial fan according to claim 1; It is characterized in that: said flexuose protruding (21) has crown portion (211) and tooth root portion (212), and the thickness of said flexuose convexity (21) is by crown portion (211) to tooth root portion (212) thickening gradually.
3. the flabellum of Industrial fan according to claim 1 and 2; It is characterized in that: said gas guide board is shaped on the draw-in groove that the cross section is the T font on (2), has only the cross section of matching with said draw-in groove to be the card rib (11) of T font on the said flabellum body (1).
4. the flabellum of Industrial fan according to claim 1 and 2, it is characterized in that: an end of said flabellum body (1) is equipped with and extends out formula baffle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101311757A CN102661290A (en) | 2012-05-02 | 2012-05-02 | Fan blade for industrial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101311757A CN102661290A (en) | 2012-05-02 | 2012-05-02 | Fan blade for industrial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102661290A true CN102661290A (en) | 2012-09-12 |
Family
ID=46770839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101311757A Pending CN102661290A (en) | 2012-05-02 | 2012-05-02 | Fan blade for industrial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102661290A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100570A (en) * | 2014-07-09 | 2014-10-15 | 德意电器股份有限公司 | Bionic impeller for exhaust hood |
| CN105953311A (en) * | 2016-06-20 | 2016-09-21 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air deflector assembly thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3403893A (en) * | 1967-12-05 | 1968-10-01 | Gen Electric | Axial flow compressor blades |
| JP2001073995A (en) * | 1999-09-03 | 2001-03-21 | Daikin Ind Ltd | Impeller for blower |
| CN1865711A (en) * | 2006-04-18 | 2006-11-22 | 吉林大学 | Method for reducing noise of axial flow fan |
| CN101634312A (en) * | 2008-07-23 | 2010-01-27 | 江苏富丽华通用设备有限公司 | Fan blades of axial flow fan |
| CN102374194A (en) * | 2011-11-10 | 2012-03-14 | 广东美的电器股份有限公司 | Axial flow wind wheel |
| CN202659573U (en) * | 2012-05-02 | 2013-01-09 | 苏州欧比特机械有限公司 | Fan blade of industrial fan |
-
2012
- 2012-05-02 CN CN2012101311757A patent/CN102661290A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3403893A (en) * | 1967-12-05 | 1968-10-01 | Gen Electric | Axial flow compressor blades |
| JP2001073995A (en) * | 1999-09-03 | 2001-03-21 | Daikin Ind Ltd | Impeller for blower |
| CN1865711A (en) * | 2006-04-18 | 2006-11-22 | 吉林大学 | Method for reducing noise of axial flow fan |
| CN101634312A (en) * | 2008-07-23 | 2010-01-27 | 江苏富丽华通用设备有限公司 | Fan blades of axial flow fan |
| CN102374194A (en) * | 2011-11-10 | 2012-03-14 | 广东美的电器股份有限公司 | Axial flow wind wheel |
| CN202659573U (en) * | 2012-05-02 | 2013-01-09 | 苏州欧比特机械有限公司 | Fan blade of industrial fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100570A (en) * | 2014-07-09 | 2014-10-15 | 德意电器股份有限公司 | Bionic impeller for exhaust hood |
| CN105953311A (en) * | 2016-06-20 | 2016-09-21 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air deflector assembly thereof |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120912 |