CN105971817A - Fairing front winglet of wind turbine generator and wind turbine generator with winglet - Google Patents

Fairing front winglet of wind turbine generator and wind turbine generator with winglet Download PDF

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Publication number
CN105971817A
CN105971817A CN201610391040.2A CN201610391040A CN105971817A CN 105971817 A CN105971817 A CN 105971817A CN 201610391040 A CN201610391040 A CN 201610391040A CN 105971817 A CN105971817 A CN 105971817A
Authority
CN
China
Prior art keywords
winglet
kuppe
wind turbines
blade
wing
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.)
Granted
Application number
CN201610391040.2A
Other languages
Chinese (zh)
Other versions
CN105971817B (en
Inventor
张羽
刘峰
鲁志平
冯克瑞
张磊
马泳吏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING KANGHAO ELECTRIC POWER ENGINEERING TECHNOLOGY RESEARCH CO LTD
Original Assignee
BEIJING KANGHAO ELECTRIC POWER ENGINEERING TECHNOLOGY RESEARCH CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BEIJING KANGHAO ELECTRIC POWER ENGINEERING TECHNOLOGY RESEARCH CO LTD filed Critical BEIJING KANGHAO ELECTRIC POWER ENGINEERING TECHNOLOGY RESEARCH CO LTD
Priority to CN201610391040.2A priority Critical patent/CN105971817B/en
Publication of CN105971817A publication Critical patent/CN105971817A/en
Application granted granted Critical
Publication of CN105971817B publication Critical patent/CN105971817B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/0608Rotors characterised by their aerodynamic shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction elements
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention discloses a fairing front winglet of a wind turbine generator and the wind turbine generator with the winglet. The fairing front winglet of the wind turbine generator comprises multiple winglets and a winglet fairing for fixing the winglets; the front end of the winglet fairing is an arc surface; a connecting part connected with a blade fairing in a blade position of the wind turbine generator is arranged at the back end of the winglet fairing; and the multiple winglets are uniformly distributed around front and back central axis of the winglet fairing. The wind turbine generator with the fairing front winglet is uniformly provided with multiple winglets on the fairing in front of blades; and the winglets rotate with the blades, and can guide air currents blown to the winglets to the front edges of the blades of the wind turbine generator behind the winglets. Through arrangement of the winglets, the winglets can make up the defect of cylindrical parts of the blades of the wind turbine generator at the blade root parts incapable of rotating by dint of wind power or weaker rotating efficiency, so that the power generation efficiency of the wind turbine generator is improved.

Description

The smaller wing and there is the Wind turbines of this winglet before Wind turbines kuppe
Technical field
The present invention relates to a kind of winglet and there is the Wind turbines of this winglet, smaller before especially a kind of Wind turbines kuppe The wing and have the Wind turbines of this winglet, belongs to wind power generation device field.
Background technology
The blade of Wind turbines, in order to meet the steadiness of requirement of strength and connection, blade is cylinder close to the position of blade root Shape, this part cannot produce rotation by wind-force or rotation efficiency is relatively low, causes the generating efficiency of whole unit to be affected.
In view of this special proposition present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, it is provided that before a kind of Wind turbines kuppe slightly Winglet and there is the Wind turbines of this winglet, it is possible to increase the generating efficiency of Wind turbines.
For solving above-mentioned technical problem, the present invention uses the basic conception of technical scheme to be:
The smaller wing before Wind turbines kuppe, including the winglet kuppe of multiple winglets and fixing winglet, winglet kuppe Front end is cambered surface, and winglet kuppe rear end has the connecting portion that the blade kuppe with wind power generation unit blade position is connected, many Individual winglet is uniformly distributed to central axis before and after winglet kuppe.
Further, the number of winglet is identical with the blade number of the Wind turbines that need to coordinate.
Further, wind can be guided to the leading edge of blade of Wind turbines by winglet.
Further, winglet kuppe inner chamber is provided with the axial fan hub of winglet kuppe with Wind turbines is connected with each other Connection support.
A kind of there is kuppe before the Wind turbines of the smaller wing, the position being positioned at blade front on kuppe is evenly arranged with Multiple winglets, winglet can rotate together with blade and can will be blown to the air flow guiding of winglet to the wind turbine being positioned at winglet rear The leading edge of group blade.
Further, the blade kuppe of the winglet kuppe accompanying by winglet and wind power generation unit blade position cooperates structure Become the complete kuppe of an outer surface smoother.
Further, the quantity of winglet is identical with the quantity of blade, and arbitrary winglet is between two adjacent blades.
Further, winglet kuppe is crown, the most trapezoidal, on go to the bottom and be arranged on winglet for circular connection support In the crown space of kuppe, connect support on axial fan hub with winglet kuppe and Wind turbines respectively of going to the bottom interconnect mutually Connect.
Further, it is crown that the multi-section distribution that winglet kuppe is identical is combined into formation one, and each several part adjacent is arranged There are in-flanges, in-flanges to be provided with bolt hole, by bolt, many parts of winglet kuppe connected respectively.
Further, the length of winglet is more than the length of the blade root cylindrical portion of wind power generation unit blade.
After using technique scheme, the present invention compared with prior art has the advantages that.
The smaller wing and there is the Wind turbines of this winglet before Wind turbines kuppe of the present invention, wherein, Wind turbines kuppe The front smaller wing includes the winglet kuppe of multiple winglet and fixing winglet, and the front end of winglet kuppe is cambered surface, winglet water conservancy diversion Cover rear end has the connecting portion that the blade kuppe with wind power generation unit blade position is connected, and multiple winglets are around winglet kuppe Front and back it is uniformly distributed to central axis.A kind of there is kuppe before the Wind turbines of the smaller wing, kuppe is positioned at blade The position in front is evenly arranged with multiple winglet, and winglet can rotate together with blade and can will be blown to the air flow guiding of winglet extremely It is positioned at the leading edge of the wind power generation unit blade at winglet rear.By the setting of winglet so that winglet can overcome the disadvantages that the leaf of Wind turbines Sheet is positioned at the defect that column part cannot rotate or rotational efficienty is poor at blade root position by wind-force generation, and then improves The generating efficiency of Wind turbines.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 be in the present invention a kind of there is kuppe before the front elevational schematic of Wind turbines of the smaller wing.
Fig. 2 be the present invention a kind of there is kuppe before the schematic side view of Wind turbines of the smaller wing.
Fig. 3 be in the present invention a kind of there is kuppe before the partial schematic diagram of Wind turbines of the smaller wing.
Fig. 4 is the schematic side view of the smaller wing before Wind turbines kuppe in the present invention.
Fig. 5 is the structural representation of the smaller wing before Wind turbines kuppe in the present invention.
Fig. 6 is the structural representation of the smaller wing before Wind turbines kuppe in the present invention.
Fig. 7 is the part-structure schematic diagram of the smaller wing before Wind turbines kuppe in the present invention.
Fig. 8 is the structural representation connecting support.
1, winglet 2, winglet kuppe 3, connection support 4, u tie 5, in-flanges 6, gap 7, hole 8, axial fan hub 9, blade 10, kuppe.
Detailed description of the invention
Embodiment one
As Figure 4-8, the smaller wing before Wind turbines kuppe of the present invention, it is characterised in that: include multiple winglet and consolidate Determining the winglet kuppe of winglet, the front end of winglet kuppe is cambered surface, and winglet kuppe rear end has and wind power generation unit blade The connecting portion that the blade kuppe of position connects, multiple winglets are uniformly distributed to central axis before and after winglet kuppe.
The number of winglet is identical with the blade number of the Wind turbines that need to coordinate.As it is shown in figure 1, so, arbitrary winglet position Between two adjacent blades.Wind can be guided to the leading edge of the blade of Wind turbines by winglet.
As it is shown on figure 3, be fixed on Wind turbines, in winglet kuppe to be able to the smaller wing before making Wind turbines kuppe Chamber is provided with and is connected support by interconnective with the axial fan hub of Wind turbines for winglet kuppe.
Before Wind turbines kuppe of the present invention, the smaller wing includes the winglet kuppe of multiple winglet and fixing winglet, winglet water conservancy diversion The front end of cover is cambered surface, and winglet kuppe rear end has the connection that the blade kuppe with wind power generation unit blade position is connected Portion, multiple winglets are uniformly distributed to central axis before and after winglet kuppe.The smaller wing before Wind turbines kuppe is pacified After being contained on the axial fan hub of Wind turbines, winglet can rotate together with blade and can will be blown to the air flow guiding of winglet to position Leading edge in the wind power generation unit blade at winglet rear.By the setting of winglet so that winglet can overcome the disadvantages that the blade of Wind turbines It is positioned at the defect that column part cannot rotate by wind-force generation or rotational efficienty is poor at blade root position, and then improves wind The generating efficiency of group of motors.
Embodiment two
The present invention is a kind of there is kuppe before the Wind turbines of the smaller wing, the position being positioned at blade front on kuppe is uniform Being provided with multiple winglet, winglet can rotate together with blade and can will be blown to the air flow guiding of winglet to being positioned at winglet rear The leading edge of wind power generation unit blade.
The length of winglet is more than the length of the blade root cylindrical portion of wind power generation unit blade.
The quantity of winglet is identical with the quantity of blade, and arbitrary winglet is between two adjacent blades.
Winglet kuppe accompanying by winglet cooperates outside composition one with the blade kuppe of wind power generation unit blade position The complete kuppe that surface is smooth.
In conjunction with Fig. 1,2, shown in 4-7, it is crown that the multi-section distribution that winglet kuppe is identical is combined into formation one, each portion Dividing adjacent to be provided with in-flanges, in-flanges is provided with bolt hole, many parts of winglet kuppe is connected respectively by bolt Connect.
Winglet kuppe is crown, is provided with connection support at crown intracavity, the most trapezoidal, on go to the bottom as circular connection Axial fan hub with winglet kuppe and Wind turbines respectively of going to the bottom on support is connected with each other.
In order to be able to make connection support be connected more firm with the axial fan hub of winglet kuppe and Wind turbines, connect the upper of support Go to the bottom and be provided with annulus, connected by dowel between the annulus above gone to the bottom.Connect annulus of the upper end and the winglet water conservancy diversion of support The contact internal walls of cover, and by multiple u ties, the annulus of the upper end connecting support is fixed on the inwall of winglet kuppe.By Being that the distribution of identical multi-section is combined into formation one in winglet kuppe crown, each several part adjacent is provided with in-flanges, therefore In-flanges is provided with gap 6 pass for the annulus of the upper end connecting support.
The annulus of going to the bottom connecting support is uniformly provided with multiple through hole along its circumference, by screw through through hole and wind turbine The axial fan hub connection of group is fixed on connecting support on the axial fan hub of Wind turbines, and then by smaller before whole kuppe The wing is fixed on the axial fan hub of Wind turbines.
The annulus of going to the bottom connecting support is uniformly provided with multiple through hole along its circumference, selection conjunction can be rotated by connecting support Suitable through hole is installed screw and is connected with the axial fan hub with Wind turbines, so that each winglet can be fixed on two adjacent leaves Correct position between sheet, makes winglet meet can will be blown to the air flow guiding of winglet to being positioned at winglet with the relative position of blade The requirement of the leading edge of the wind power generation unit blade at rear.
The present invention is a kind of there is kuppe before the Wind turbines of the smaller wing, the position being positioned at blade front on kuppe is uniform Being provided with multiple winglet, winglet can rotate together with blade and can will be blown to the air flow guiding of winglet to being positioned at winglet rear The leading edge of wind power generation unit blade.By the setting of winglet so that winglet can overcome the disadvantages that the blade of Wind turbines is positioned at blade root position Column part cannot produce by wind-force and rotate or the poor defect of rotational efficienty, and then improve the generating of Wind turbines Efficiency.
Embodiment in above-described embodiment can be further combined or replace, and embodiment is only excellent to the present invention Select embodiment to be described, not the spirit and scope of the present invention are defined, without departing from design philosophy of the present invention Under premise, the various changes and modifications that in this area, technical scheme is made by professional and technical personnel, belong to this The protection domain of invention.

Claims (10)

1. the smaller wing before Wind turbines kuppe, it is characterised in that: include the winglet water conservancy diversion of multiple winglet and fixing winglet Cover,
The front end of winglet kuppe is cambered surface, and winglet kuppe rear end has the blade kuppe with wind power generation unit blade position The connecting portion connected, multiple winglets are uniformly distributed to central axis before and after winglet kuppe.
The smaller wing before Wind turbines kuppe the most according to claim 1, it is characterised in that: the number of winglet with The blade number of the Wind turbines that need to coordinate is identical.
The smaller wing before Wind turbines kuppe the most according to claim 1, it is characterised in that: wind can be led by winglet It flow to the leading edge of the blade of Wind turbines.
The smaller wing before Wind turbines kuppe the most according to claim 1, it is characterised in that: in winglet kuppe Chamber is provided with and is connected support by interconnective with the axial fan hub of Wind turbines for winglet kuppe.
5. one kind there is kuppe before the Wind turbines of the smaller wing, it is characterised in that: on kuppe, be positioned at blade front Position be evenly arranged with multiple winglet, winglet can rotate together with blade and can will be blown to the air flow guiding of winglet to being positioned at The leading edge of the wind power generation unit blade at winglet rear.
The most according to claim 5 a kind of there is kuppe before the Wind turbines of the smaller wing, it is characterised in that: little The blade kuppe of the winglet kuppe accompanying by the wing and wind power generation unit blade position one outer surface of composition that cooperates is put down Sliding complete kuppe.
The most according to claim 5 a kind of there is kuppe before the Wind turbines of the smaller wing, it is characterised in that: little The quantity of the wing is identical with the quantity of blade, and arbitrary winglet is between two adjacent blades.
The most according to claim 6 a kind of there is kuppe before the Wind turbines of the smaller wing, it is characterised in that: little Wing kuppe is crown, the most trapezoidal, on go to the bottom and be arranged in the crown space of winglet kuppe for circular connection support, Connect support on axial fan hub with winglet kuppe and Wind turbines respectively of going to the bottom be connected with each other.
The most according to claim 6 a kind of there is kuppe before the Wind turbines of the smaller wing, it is characterised in that: little It is crown that the multi-section distribution that wing kuppe is identical is combined into formation one, and each several part adjacent is provided with in-flanges, in-flanges It is provided with bolt hole, by bolt, many parts of winglet kuppe is connected respectively.
10. the Wind turbines of the smaller wing, its feature before there is kuppe according to a kind of described in any one of claim 5-9 It is: the length of winglet is more than the length of the blade root cylindrical portion of wind power generation unit blade.
CN201610391040.2A 2016-06-03 2016-06-03 The smaller wing and the Wind turbines with this winglet before Wind turbines kuppe Expired - Fee Related CN105971817B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610391040.2A CN105971817B (en) 2016-06-03 2016-06-03 The smaller wing and the Wind turbines with this winglet before Wind turbines kuppe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610391040.2A CN105971817B (en) 2016-06-03 2016-06-03 The smaller wing and the Wind turbines with this winglet before Wind turbines kuppe

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CN105971817A true CN105971817A (en) 2016-09-28
CN105971817B CN105971817B (en) 2017-09-19

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87214619U (en) * 1987-10-28 1988-10-26 金丹 Lift-resistance force wind-motor
US8011886B2 (en) * 2009-06-30 2011-09-06 General Electric Company Method and apparatus for increasing lift on wind turbine blade
CA2810759A1 (en) * 2012-04-03 2013-10-03 Siemens Aktiengesellschaft Flatback slat for wind turbine
CN103939279A (en) * 2014-04-30 2014-07-23 哈尔滨工业大学 Double-duct horizontal shaft breeze wind turbine
CN205036501U (en) * 2015-10-16 2016-02-17 大唐巴彦淖尔风力发电有限责任公司 Flow guide device of fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87214619U (en) * 1987-10-28 1988-10-26 金丹 Lift-resistance force wind-motor
US8011886B2 (en) * 2009-06-30 2011-09-06 General Electric Company Method and apparatus for increasing lift on wind turbine blade
CA2810759A1 (en) * 2012-04-03 2013-10-03 Siemens Aktiengesellschaft Flatback slat for wind turbine
CN103939279A (en) * 2014-04-30 2014-07-23 哈尔滨工业大学 Double-duct horizontal shaft breeze wind turbine
CN205036501U (en) * 2015-10-16 2016-02-17 大唐巴彦淖尔风力发电有限责任公司 Flow guide device of fan

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CB03 Change of inventor or designer information

Inventor after: Zhang Yu

Inventor after: Liu Feng

Inventor after: Lu Zhiping

Inventor after: Feng Kerui

Inventor after: Shang Yixin

Inventor after: Zhang Lei

Inventor after: Xin Wei

Inventor after: Ma Yongli

Inventor before: Zhang Yu

Inventor before: Liu Feng

Inventor before: Lu Zhiping

Inventor before: Feng Kerui

Inventor before: Zhang Lei

Inventor before: Ma Yongli

CB03 Change of inventor or designer information
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170919

Termination date: 20190603

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