Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Horizontal axle wind mill with blade tip winglet

A wind turbine and horizontal axis technology, which is applied in the field of wind power generation equipment, can solve the problems of complex structure, high manufacturing cost, and high processing difficulty of wind rotor blade tip winglets, and achieves improved structural dynamic characteristics, low manufacturing cost, and comprehensive improvement. performance effect

Inactive Publication Date: 2009-08-05
INNER MONGOLIA UNIV OF TECH
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a horizontal axis wind turbine with a small blade tip for the technical deficiencies such as complex structure, difficult processing, high manufacturing cost, and difficult installation of the existing wind rotor blade tip. The wings can improve the stall characteristics, aerodynamic characteristics, structural dynamic characteristics, blade surface dynamic load distribution and reduce the radiation noise of the wind turbine in the invention, so that the wind turbine can save energy and improve efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Horizontal axle wind mill with blade tip winglet
  • Horizontal axle wind mill with blade tip winglet
  • Horizontal axle wind mill with blade tip winglet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment the technical scheme of the present invention will be further described

[0013] attached Figure 1~4 The labels in the figure represent respectively: 1-tooth winglet, 2-wind turbine blade, 3-hub, 4-nacelle, 5-tower, 6-blade suction surface, 7-blade pressure surface, I-flow direction, II-wind turbine rotation direction, B-mounting surface folded edge, L-straight edge of leading edge, h-straight edge of trailing edge, E-connecting edge, H-tooth height, φ-vertex angle of hypotenuse of tooth profile, S- Tooth type hypotenuse, R-tooth tip arc radius, M-installation surface, I-incoming flow direction, B-installation surface folded edge, L-straight edge of front edge h-straight edge of rear edge, E-connection edge, H-tooth height, φ-tooth tip angle, a-airfoil leading edge point, b-airfoil trailing edge point, c-blade tip airfoil chord line, β-back tension angle.

[0014] Overall structure of the present invention...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a wind power generating device, in particular to a horizontal-shaft wind machine with a blade tip winglet, more particular to a horizontal-shaft wind machine blade tip tooth-shaped winglet device which has an automatic speed-reduction regulatory function, can improve the wind wheel aerodynamic characteristic, the structural dynamic characteristic, the blade surface dynamic load distribution and the blade tip vortex shedding frequency of the wind machine and can reduce the radiation noise of a wind wheel. The horizontal-shaft wind machine blade tip tooth-shaped winglet device comprises a blade (2), a hub (3), an engine room (4) and a tower base (5), wherein the blade tip of the blade of the wind wheel is provided with a winglet (1) which is in a flat plate shape and is also in a similar triangle shape, and the sloping edge (S) of the blade tip winglet (1) is in a comb shape. The invention improves the combination property of the wind machine by simply installing a winglet in a flat plate shape on the blade tip of the wind machine under the premise of no alteration of the structural parameters of an original wind machine; the blade tip winglet adopts a flat plate type structure; and the invention has the advantages of simple structure, short process flow, less working procedure, low manufacturing cost and simple installation.

Description

technical field [0001] The invention relates to wind power generating equipment, in particular to a horizontal axis wind machine with blade tip small wings. More specifically, it relates to a horizontal axis wind turbine with an automatic stall adjustment function, which can improve the aerodynamic characteristics of the wind turbine rotor, structural dynamic characteristics, dynamic load distribution on the blade surface, blade tip vortex shedding frequency, and reduce the radiation noise of the rotor. Blade tip winglet device. Background technique [0002] As a clean renewable energy, wind energy will play an important role in the future energy system. Over the past ten years, the world's wind power has developed rapidly with an annual growth rate of about 30%. In my country, the research on wind turbine technology has also made rapid progress. A series of large and medium-sized grid-connected wind turbines ranging from 100 kilowatts to megawatts have been developed, and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06F03D11/00
CPCY02E10/722Y02E10/721Y02E10/72Y02P70/50
Inventor 汪建文高志鹰刘冬冬李振法
Owner INNER MONGOLIA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com