CN113250908A - Composite wind generating set - Google Patents

Composite wind generating set Download PDF

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Publication number
CN113250908A
CN113250908A CN202110628844.0A CN202110628844A CN113250908A CN 113250908 A CN113250908 A CN 113250908A CN 202110628844 A CN202110628844 A CN 202110628844A CN 113250908 A CN113250908 A CN 113250908A
Authority
CN
China
Prior art keywords
blade
wind
main shaft
generator
blades
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
Application number
CN202110628844.0A
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Chinese (zh)
Inventor
祁坤
祁学力
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.)
Henan Bamianfeng New Energy Technology Co ltd
Original Assignee
Henan Bamianfeng New Energy Technology 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 Henan Bamianfeng New Energy Technology Co ltd filed Critical Henan Bamianfeng New Energy Technology Co ltd
Priority to CN202110628844.0A priority Critical patent/CN113250908A/en
Publication of CN113250908A publication Critical patent/CN113250908A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/06—Controlling wind motors  the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/60—Control system actuates through
    • F05B2270/602—Control system actuates through electrical actuators
    • 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

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The invention discloses a composite wind generating set, which comprises a base, a generator fixedly arranged on the base, a main shaft connected with the generator and a generating mechanism arranged on the main shaft, wherein the generator is fixedly arranged on the base; the power generation mechanism comprises a supporting plate arranged on the main shaft, 3-5 supporting rods uniformly distributed on the supporting plate in a horizontal mode and blade groups respectively arranged on the supporting rods, wherein the blade groups are arranged clockwise in an end-to-end mode. The invention improves the utilization efficiency of wind energy by designing the opening direction of the inner and outer blades in the blade group, the thickness ratio of the blades, the shape of the blades, the windward angle and the distance between the inner and outer blades.

Description

Composite wind generating set
Technical Field
The invention relates to the technical field of wind power generation, in particular to a composite wind generating set.
Background
With the progress of society, the quality of life is improved, and the requirements on the environment are gradually improved. The wind power generation belongs to clean renewable energy sources, and is abundant in nature, free of pollution and environment-friendly. The wind driven generator is effective equipment for wind power generation, the existing wind driven generator is large in size and high in cost and can be divided into a horizontal shaft and a vertical shaft, the horizontal shaft needs a wind aligning device, the structure is complex, and the low-wind-speed wind energy conversion efficiency is low. Although the vertical axis does not need a wind alignment device, the development of the industry is restricted by the defects of low wind energy conversion efficiency, high stalling performance and low cost performance.
Disclosure of Invention
In view of the above, the present invention provides a composite wind turbine generator system with light structure, small size, high wind energy conversion rate and low starting wind speed.
In order to achieve the purpose, the invention adopts the following technical scheme:
a composite wind generating set comprises a base, a generator fixedly arranged on the base, a main shaft connected with the generator and a generating mechanism arranged on the main shaft; the power generation mechanism comprises a supporting plate arranged on the main shaft, 3-5 supporting rods uniformly distributed on the supporting plate in a horizontal mode and blade groups respectively arranged on the supporting rods, wherein the blade groups are arranged clockwise in an end-to-end mode.
Aiming at the technical scheme, each blade group is independent, the installation mode and the installation direction are the same, the blade groups are started under the influence of wind to carry out wind power generation, the support disc increases the stability of the blade groups in the rotation process of the blade groups, and the wind resistance is small; the supporting rod is used for supporting the blade group; the installation arrangement mode of the blade group ensures that the power generation mechanism always keeps clockwise rotation.
Preferably, the blade group comprises an inner blade and an outer blade which are vertically arranged on the supporting rod, and an adjusting component arranged between the inner blade and the outer blade.
Preferably, the adjusting assembly comprises a motor arranged on the supporting rod, a gear connected with the motor and a rack meshed with the gear through a sliding assembly, and one end of the rack is connected with the inner blade or the outer blade; the sliding assembly comprises a sliding rail arranged on the supporting rod and a sliding block matched with the sliding rail, and the sliding block is fixedly arranged at the bottom of the rack.
Preferably, the inner blade and the outer blade are both in a C shape, the inner blade and the outer blade are both provided with C-shaped grooves, the groove openings of the inner blade face inwards, and the groove openings of the outer blade face outwards.
Preferably, the included angles between the windward surfaces of the inner blade and the outer blade and the wind direction respectively form two windward angles, and the range of the windward angles is 7-15 degrees.
All adopt end to end's mode between the adjacent blade group, make the opening direction that lies in the inner blade and the outer blade of main shaft left and right sides constantly opposite to the blade group afterbody that lies in the main shaft left side obtains the resistance moment, and the blade group that lies in the main shaft right side obtains the lift moment, and the moment direction of resistance moment and lift moment is the same, thereby it keeps syntropy and stability at the rotation in-process to increase fan group, has reduced the minimum wind speed that the generator started in addition, makes it can start when the wind speed is 1 m/s.
The inner blade and the outer blade are arranged in a C shape, so that the distance between the head part and the tail part of the inner blade and the outer blade is larger than that between the tail part of the inner blade and the tail part of the outer blade, the inner blade and the outer blade respectively form two different windward angles, the inner blade and the outer blade simultaneously obtain two lifting forces, the air flow speed is increased, the airflow pressure passing through the blades is increased, the speed of airflow flowing through the blades is increased, and the wind energy conversion efficiency is improved; the range of the windward angle enables the wind energy conversion efficiency to reach the highest.
Preferably, the thickness ratio D/L of the inner leaf and the outer leaf = 0.15-0.4. The thickness ratio of the blades can effectively avoid the stalling phenomenon of the generator under the condition of strong wind.
Preferably, the ratio of the distance m between the inner blade and the outer blade to the blade width L, m/L = 0.25-0.45. The solar panel with the inclination can achieve the optimal efficiency within longer illumination time, thereby improving the utilization efficiency of solar energy.
Preferably, the support plate comprises an upper support plate and a lower support plate. The blade group is supported by the upper support disc and the lower support disc, and the stability of the blade group is improved.
The invention has the beneficial effects that:
the invention is a miniaturized generator set, can be applied to any outdoor environment, and more fully utilizes wind energy; by designing the opening direction, the blade thickness ratio, the blade shape, the windward angle and the distance between the inner blade and the outer blade of the inner blade and the outer blade in the blade group, the stalling phenomenon of a power generation mechanism is avoided, and the utilization efficiency of wind energy is improved; the generator set obtains the resistance moment and the lifting moment in the same direction, so that the generator set can rotate in the same direction.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the upper blade configuration;
fig. 4 is a structural view of the adjustment assembly.
In the figure: the generator comprises a base 1, a generator 2, a lower supporting disk 3, an upper supporting disk 4, a supporting rod 5, a main shaft 6, an inner blade 7, an outer blade 8, an adjusting component 9, a sliding rail 10, a sliding block 11, a rack 12 and a gear 13.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1-4, a composite wind generating set includes a base 1, a generator 2 fixedly disposed on the base 1, a main shaft 6 connected to the generator 2, and a generating mechanism disposed on the main shaft 6.
The power generation mechanism comprises a supporting disc arranged on a main shaft 6, the supporting disc comprises an upper supporting disc 4 and a lower supporting disc 3, 3-5 supporting rods 5 are horizontally and uniformly distributed on the upper supporting disc 4 and the lower supporting disc 3 respectively, blade groups are vertically arranged on the supporting rods 5 of the upper supporting disc 4 and the lower supporting disc 3 respectively, and the blade groups are sequentially arranged clockwise in a mode that the head part and the tail part are connected.
The blade group comprises an inner blade 7 and an outer blade 8 which are vertically arranged on the support rod 5, and two adjusting components 9 arranged between the inner blade 7 and the outer blade 8. The adjusting component 9 comprises a motor arranged on the supporting rod 5, a gear 13 connected with the motor and a rack 12 meshed with the gear 13 through a sliding component, and one end of the rack 12 is connected with the inner blade 7 or the outer blade 8. The sliding assembly comprises a sliding rail 10 arranged on the supporting rod 5 and a sliding block 11 matched with the sliding rail 10, and the sliding block 11 is fixedly arranged at the bottom of the rack 12. The adjusting assembly 9 is used for adjusting the windward angles of the inner blade 7 and the outer blade 8, the motor drives the gear 13 to rotate, the gear 13 drives the rack 12 to move back and forth along the sliding rail 10, the windward angle of the inner blade 7 or the outer blade 8 is adjusted, the inner blade 7 is adjusted inwards, and the outer blade 8 is adjusted outwards.
Inner vane 7 and outer blade 8 all are "C" type, and all are equipped with "C" type recess on inner vane 7 and outer blade 8, and the recess opening of inner vane 7 is inside, and the recess opening of outer blade 8 is outside. The included angles between the windward surfaces of the inner blades 7 and the outer blades 8 and the wind direction respectively form two windward angles, and the angle range of the windward angle alpha is 7-15 degrees.
The thickness ratio D/L of the inner blade 7 and the outer blade 8 = 0.15-0.4. The ratio m/L of the distance m between the inner blade 7 and the outer blade 8 to the blade width L = 0.25-0.45.
The generator set of the invention has small volume and low cost, can be used in any outdoor environment to utilize wind energy, and has the wind energy utilization rate of 0.48 which is higher than that of a large-scale wind generator set (0.4).
The working principle of the invention is as follows: the generator set is installed at a set place, airflow pressure difference is formed when the airflow passes through the blade set, airflow speed is increased, and simultaneously wind energy resisting moment can be obtained when the airflow passes through the grooves of the lower-layer blades, so that the blade set rotates clockwise to perform wind power generation.
The generator is a permanent magnet alternator or an excitation alternator.
The apparatus elements referred to in the above embodiments are conventional apparatus elements unless otherwise specified, and the structural arrangements, operations, or controls referred to in the above embodiments are conventional in the art unless otherwise specified.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims (8)

1. A composite wind generating set is characterized by comprising a base, a generator fixedly arranged on the base, a main shaft connected with the generator and a generating mechanism arranged on the main shaft; the power generation mechanism comprises a supporting plate arranged on the main shaft, 3-5 supporting rods uniformly distributed on the supporting plate in a horizontal mode and blade groups respectively arranged on the supporting rods, wherein the blade groups are arranged clockwise in an end-to-end mode.
2. A combined wind power plant according to claim 1, characterised in that the blade assembly comprises an inner blade and an outer blade arranged vertically on the support bar, and an adjustment assembly arranged between the inner blade and the outer blade.
3. The compound wind generating set according to claim 2, wherein the adjusting component comprises a motor arranged on the support rod, a gear connected with the motor and a rack engaged with the gear through a sliding component, and one end of the rack is connected with the inner blade or the outer blade; the sliding assembly comprises a sliding rail arranged on the supporting rod and a sliding block matched with the sliding rail, and the sliding block is fixedly arranged at the bottom of the rack.
4. A composite wind turbine according to claim 3, wherein the inner and outer blades are C-shaped and provided with C-shaped grooves, the grooves of the inner blade opening inwards and the grooves of the outer blade opening outwards.
5. The compound wind generating set according to claim 4, wherein the included angles between the windward sides of the inner and outer blades and the wind direction respectively form two windward angles, and the windward angles range from 7 ° to 15 °.
6. A composite wind park according to claim 5, wherein the thickness ratio D/L of the inner and outer blades = 0.15-0.4.
7. A composite wind park according to claim 6, wherein the ratio m/L =0.25-0.45 of the distance m between the inner and outer blades to the blade width L.
8. The compound wind turbine of claim 1, wherein the support tray comprises an upper support tray and a lower support tray.
CN202110628844.0A 2021-06-07 2021-06-07 Composite wind generating set Pending CN113250908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110628844.0A CN113250908A (en) 2021-06-07 2021-06-07 Composite wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110628844.0A CN113250908A (en) 2021-06-07 2021-06-07 Composite wind generating set

Publications (1)

Publication Number Publication Date
CN113250908A true CN113250908A (en) 2021-08-13

Family

ID=77186654

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110628844.0A Pending CN113250908A (en) 2021-06-07 2021-06-07 Composite wind generating set

Country Status (1)

Country Link
CN (1) CN113250908A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101280766A (en) * 2008-05-30 2008-10-08 哈尔滨工程大学 Changeable attack angle resistance force type vertical shaft wind-light complementary type electricity generator
CN101520031A (en) * 2009-04-03 2009-09-02 哈尔滨工程大学 Vertical-axis wind-driven dynamo of variable-pitch resistance and lift mixed type
US20100150728A1 (en) * 2007-12-17 2010-06-17 Douglass Karl J Cylindrical wind turbine
CN101900084A (en) * 2009-05-25 2010-12-01 祁学力 Vertical, controllable and variable pitch type wind driven generator
CN201794718U (en) * 2010-08-20 2011-04-13 张�杰 Vertical-axis wind power generation device
CN202250630U (en) * 2011-04-27 2012-05-30 孙善骏 Power-generating self-driving fan of wind-energy and solar-energy roof
KR20150019185A (en) * 2013-08-13 2015-02-25 박준규 Power generating apparatus using flowing fluid
CN105649871A (en) * 2016-01-07 2016-06-08 上海理工大学 Double-blade vertical-axis wind power generator
CN106224160A (en) * 2016-08-31 2016-12-14 王永彰 The resistance of a kind of stable performance and lift compound vertical shaft air operated machine
CN106286122A (en) * 2016-10-31 2017-01-04 南京师范大学 A kind of band bilayer lift strengthens and rises the vertical axis windmill hindering automatic switching foil
CN109356787A (en) * 2018-12-19 2019-02-19 四川大学 Low wind speed self-starting vertical axis rises resistance composite type wind power generator wind wheel structure

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100150728A1 (en) * 2007-12-17 2010-06-17 Douglass Karl J Cylindrical wind turbine
CN101280766A (en) * 2008-05-30 2008-10-08 哈尔滨工程大学 Changeable attack angle resistance force type vertical shaft wind-light complementary type electricity generator
CN101520031A (en) * 2009-04-03 2009-09-02 哈尔滨工程大学 Vertical-axis wind-driven dynamo of variable-pitch resistance and lift mixed type
CN101900084A (en) * 2009-05-25 2010-12-01 祁学力 Vertical, controllable and variable pitch type wind driven generator
CN201794718U (en) * 2010-08-20 2011-04-13 张�杰 Vertical-axis wind power generation device
CN202250630U (en) * 2011-04-27 2012-05-30 孙善骏 Power-generating self-driving fan of wind-energy and solar-energy roof
KR20150019185A (en) * 2013-08-13 2015-02-25 박준규 Power generating apparatus using flowing fluid
CN105649871A (en) * 2016-01-07 2016-06-08 上海理工大学 Double-blade vertical-axis wind power generator
CN106224160A (en) * 2016-08-31 2016-12-14 王永彰 The resistance of a kind of stable performance and lift compound vertical shaft air operated machine
CN106286122A (en) * 2016-10-31 2017-01-04 南京师范大学 A kind of band bilayer lift strengthens and rises the vertical axis windmill hindering automatic switching foil
CN109356787A (en) * 2018-12-19 2019-02-19 四川大学 Low wind speed self-starting vertical axis rises resistance composite type wind power generator wind wheel structure

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Application publication date: 20210813

RJ01 Rejection of invention patent application after publication