CN201372891Y - Fan blade with hollow symmetrical fish-shaped cross section - Google Patents

Fan blade with hollow symmetrical fish-shaped cross section Download PDF

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Publication number
CN201372891Y
CN201372891Y CN200920032577U CN200920032577U CN201372891Y CN 201372891 Y CN201372891 Y CN 201372891Y CN 200920032577 U CN200920032577 U CN 200920032577U CN 200920032577 U CN200920032577 U CN 200920032577U CN 201372891 Y CN201372891 Y CN 201372891Y
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CN
China
Prior art keywords
blade
fan blade
fish
hollow
fish shape
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
Application number
CN200920032577U
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Chinese (zh)
Inventor
杜建诚
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Individual
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Individual
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Publication date
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Priority to CN200920032577U priority Critical patent/CN201372891Y/en
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Publication of CN201372891Y publication Critical patent/CN201372891Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • Y02E10/72—Wind turbines with rotation axis in 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
    • 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 relates to a fan blade with hollow symmetrical fish-shaped cross section, which is used for a blade of a vertical wind-driven generator; the cross section of the blade profile of the fan blade adopts hollow symmetrical fish-shaped blades 1, 2 and 3, and the fish-shaped blades 1, 2 and 3 are riveted into hollow fish shapes by adopting a splicing structure; the ratio of the chord length of the hollow fish-shaped fan blades formed by adopting the splicing structure and the thickest size of the fish shape is 5:1; and due to the adoption of the hollow fish-shaped blades, the weight of the blade per meter is reduced, the weight of the fan blade is effectively reduced, the manufacturing cost of the fan blade is reduced and the wind energy conversion efficiency is improved.

Description

The hollow symmetrical fish shape fan blade in transverse section
Technical field
The utility model is a wind power generating set, and the blade structure is used the blade of vertical axis aerogenerator especially, and the blade profile transverse section is hollow symmetrical fish shape fan blade.
Background technique
At present, the air blade of vertical axis aerogenerator wind wheel uses the transverse section to be waist shape glass fiber reinforced plastics hollow blade mostly in wind power generating set, because every meter length weight of this structure is big (as the glass fibre reinforced plastics waist shape blade of chord length 300mm, every meter weight is 6kg), the centrifugal force of fan blade increases when causing the wind wheel high speed rotating, and the wind energy conversion efficiency of blade is low is generally 0.3, has reduced the generating efficiency of wind energy.
Summary of the invention
The purpose of this utility model is wheel body structural material and the weight issue that causes fan blade centrifugal force to increase when solving the wind wheel high speed rotating, provides a kind of transverse section hollow symmetrical fish shape fan blade and improve design, can effectively change fan blade weight, improves the wind energy conversion efficiency.
The technological scheme of the hollow symmetrical fish shape fan blade in the utility model transverse section is achieved in that and comprises fan blade that the blade profile transverse section of this fan blade is hollow symmetrical fish shape; Its blade adopts splicing construction, rivets into hollow symmetrical fish shape.
The chord length of described fish shape blade is 5: 1 with the thickest size ratio of fish shape.
Described fish shape blade adopts aluminum alloy cold extrusion shaped.
The beneficial effects of the utility model are:
1, adopts splicing construction to reduce the weight of every meter in blade, alleviated the weight of blade, reduced the cost of blade;
2, simplify the preparation process of blade, improved the wind energy conversion efficiency simultaneously.
Description of drawings
Fig. 1 is a structure connection diagram of the present utility model
Among the figure, 1,2,3-fish shape blade transverse section, I-fish shape vane thickness;
Embodiment
Below in conjunction with drawings and Examples the utility model is further described
With reference to Fig. 1, the hollow fan blade of a kind of transverse section fish shape, the blade profile transverse section of this fan blade is hollow symmetrical fish shape, and blade 1,2,3 adopts splicing construction; Rivet into hollow fish shape.The chord length of the fish shape blade of described spicing forming type is 5: 1 with the thickest size ratio of fish shape; Described fish shape blade 1,2,3 adopts aluminum alloy cold extrusion shaped.
Through actual measurement, the aforesaid traditional product weight of every meter weight ratio of the utility model fan blade reduces by 1.76 times; Through the tunnel test test, the wind energy conversion efficiency of the utility model fan blade is 0.43, improves 1.4 times than aforesaid traditional product.
Real case can be applied to the utility model in wind-driven generator.

Claims (3)

1, the hollow symmetrical fish shape fan blade in a kind of transverse section comprises fan blade, it is characterized in that: the blade profile transverse section of this fan blade is hollow symmetrical fish shape blade (1), (2), (3) employing splicing construction, and rivets into hollow fish shape.
2, the hollow symmetrical fish shape fan blade in transverse section according to claim 1 is characterized in that the chord length of the fish shape blade of described spicing forming type is 5: 1 with the thickest size ratio of fish shape.
3, the hollow symmetrical fish shape fan blade in transverse section according to claim 1 is characterized in that described fish shape blade (1), (2), (3) adopt aluminum alloy cold extrusion shaped.
CN200920032577U 2009-03-26 2009-03-26 Fan blade with hollow symmetrical fish-shaped cross section Expired - Fee Related CN201372891Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920032577U CN201372891Y (en) 2009-03-26 2009-03-26 Fan blade with hollow symmetrical fish-shaped cross section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920032577U CN201372891Y (en) 2009-03-26 2009-03-26 Fan blade with hollow symmetrical fish-shaped cross section

Publications (1)

Publication Number Publication Date
CN201372891Y true CN201372891Y (en) 2009-12-30

Family

ID=41498975

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920032577U Expired - Fee Related CN201372891Y (en) 2009-03-26 2009-03-26 Fan blade with hollow symmetrical fish-shaped cross section

Country Status (1)

Country Link
CN (1) CN201372891Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133239A (en) * 2013-03-26 2013-06-05 易兵 Vane and turbine generator using vane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133239A (en) * 2013-03-26 2013-06-05 易兵 Vane and turbine generator using vane

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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: 20091230

Termination date: 20170326

CF01 Termination of patent right due to non-payment of annual fee