WO2015066986A1 - Turbine éolienne à axe horizontal - Google Patents

Turbine éolienne à axe horizontal Download PDF

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Publication number
WO2015066986A1
WO2015066986A1 PCT/CN2014/072152 CN2014072152W WO2015066986A1 WO 2015066986 A1 WO2015066986 A1 WO 2015066986A1 CN 2014072152 W CN2014072152 W CN 2014072152W WO 2015066986 A1 WO2015066986 A1 WO 2015066986A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
hub
motor
axis wind
wind wheel
Prior art date
Application number
PCT/CN2014/072152
Other languages
English (en)
Chinese (zh)
Inventor
俞红鹰
皮开红
Original Assignee
广州红鹰能源科技有限公司
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 广州红鹰能源科技有限公司 filed Critical 广州红鹰能源科技有限公司
Publication of WO2015066986A1 publication Critical patent/WO2015066986A1/fr

Links

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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0625—Rotors characterised by their aerodynamic shape of the whole rotor, i.e. form features of the rotor unit
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/33—Shrouds which are part of or which are rotating with 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
    • F05B2250/00—Geometry
    • F05B2250/60—Structure; Surface texture
    • F05B2250/61—Structure; Surface texture corrugated
    • 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

Definitions

  • the utility model relates to a horizontal axis wind power generator. Background technique
  • wind power generation equipment mainly includes horizontal axis wind turbines and vertical axis wind turbines.
  • the horizontal axis wind turbine is mainly composed of a tower, a generator and a wind wheel.
  • the generator is installed on the tower column, the wind wheel is installed on the generator, and the wind wheel rotates to make the generator work. Therefore, the structure and strength of the wind wheel play a very important role in the horizontal axis wind turbine, and To solve the technical problems caused by the wind wheel, people have done a lot of research on the wind wheel.
  • a diffusion type wind wheel is disclosed in the patent document No. 201010555574.7, the disclosure of which is incorporated herein by reference.
  • the diffusion type wind wheel is composed of a hub, a blade and a rim, although the structure is simple and does not increase.
  • the available power of the wind wheel can be maximized.
  • the use is safe and stable, the noise is small, and the flow and power can be greatly increased.
  • the position of the wind wheel changes with the change of the wind direction. Therefore, all directions of the blade may be stressed and uneven, and the connection angle between the blade and the hub is rectangular. In this case, the connection between the blade and the hub is prone to a gyro effect, between the blade and the hub. It is easy to break, so the strength is low. Summary of the invention
  • the present invention provides a horizontal axis wind turbine.
  • a horizontal axis wind power generator includes a tower pole, a motor housing, a tail rudder, an end cover, a motor stator, a motor rotor and a wind wheel;
  • the motor housing is provided in the tower column, and the tail
  • the rudder is arranged at the rear of the motor housing, the end cover is arranged at the front end of the motor housing, the motor stator is installed in the motor housing, the motor rotor is arranged in the motor stator, and the output shaft of the motor rotor passes through the end cover and extends
  • the wind cover is disposed on the protruding end of the output shaft of the motor rotor;
  • the wind wheel comprises a hub, a blade and a rim, one end of the blade is connected to the hub, and the rim is sleeved on the blade tip; the blade root
  • the section is elliptical.
  • the blade root has an elliptical cross section, and the blade tips are connected together by the rim, the blade is not easily twisted.
  • the force around the blade root is uniform, thereby improving the blade and the hub.
  • Connection strength Since the rims connect the tips together, the vibration of the tip of the wind wheel during the rotation is small, thereby reducing the amount of noise, and the rim can reduce the displacement of the blade in the wielding direction, thereby reducing the loss of wind energy at the tip end. Therefore, the utilization rate of wind energy is improved.
  • the blade connects the hub and the rim to strengthen the skeleton, and therefore, the strength of the entire wind wheel is good.
  • a transition arc is arranged between the blade root and the hub, which can further improve the connection strength between the hub and the blade.
  • noise reduction lines are provided on the back surface of the blade to reduce noise during operation of the wind wheel. Further, the hub, the blade and the rim are integrated, so that the manufacturing cost is low and the strength is high.
  • a weight reducing hole is provided on the hub to reduce the weight of the hub.
  • Figure 1 is a perspective view of a horizontal axis wind turbine.
  • Figure 2 is a front view of a horizontal axis wind turbine.
  • Figure 3 is a cross-sectional view of the horizontal axis wind turbine A-A.
  • Figure 4 is a schematic view of the structure of the back of the wind wheel.
  • Figure 5 is an enlarged view of A in Figure 1.
  • Figure 6 is an enlarged view of B in Figure 3.
  • the horizontal axis wind power generator includes a tower 1, a motor housing 2, a rudder 3, an end cover 4, a motor stator 5, a motor rotor 6, and a rotor 7.
  • the motor housing 2 has a cavity 21 in which the cavity 21 can reduce the weight of the motor housing and, on the other hand, the motor stator 5 and the motor rotor 6.
  • the middle portion of the motor housing is mounted on the tower 1 .
  • the rudder 3 is provided at the rear of the motor casing 2 and is integrally formed with the motor casing 2.
  • the end cap 4 is mounted at the front end of the motor housing 2.
  • the motor stator 5 is mounted on the inner wall of the motor housing 2, the motor rotor 6 is disposed in the motor stator 5, the motor rotor 6 has an output shaft, and the output shaft extends through the end cover 4 to extend the end cover, on the output shaft and Bearings are provided between the end caps 4.
  • the wind turbine 7 includes a hub 71, blades 72 and rims 73.
  • the hub 71 has a hole 711 in the center for mounting the output shaft; the end surface of the hub 71 is located at the outer side of the hole 711 and is provided with a weight reducing hole 712. On the one hand, the weight of the wind wheel can be reduced, so that the load of the wind wheel is reduced, and the other is It also improves the strength of the hub.
  • the blade 72 includes a blade root portion 721, a blade middle portion 722 and a blade tip 723 which are sequentially connected. As shown in FIG.
  • the blade root portion 721 has an elliptical cross section, wherein the ratio of the long diameter to the short diameter of the elliptical shape is 1: 0.8-0.99, the blade is integrally formed with the hub, and a transition arc is arranged between the blade root 721 and the hub 71 to improve the connection strength; as shown in FIG. 7, the noise reduction 724 is provided on the back of the blade to reduce the wind. The noise when working at the wheel.
  • the rim 72 is placed over the blade tip 723 of the blade.
  • a deflector cap 9 is connected to the outer side of the wind wheel 7 via a bolt 8 on the output shaft.
  • the blade root portion 721 has an elliptical cross section and the blade tips 723 are connected together by the rim 73, the blade is not easily twisted.
  • the force around the blade root portion 721 is uniform.
  • the connection strength between the blade and the hub Since the rim 73 connects the blade tips 723 together, the vibration of the blade tip during the rotation of the wind wheel 7 is small, thereby reducing the amount of noise, and the rim can reduce the amount of displacement in the blade wiping direction, thereby reducing the wind energy at the tip end portion. The loss, therefore, improves the utilization of wind energy.
  • the blade connects the hub and the rim to enhance the skeleton, and therefore, the strength of the entire wind wheel is good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (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)
  • Wind Motors (AREA)

Abstract

Turbine éolienne à axe horizontal comprenant un poteau (1), un carter (2) de moteur, un gouvernail (3), un cache d'extrémité (4), un stator (5) de moteur, un rotor (6) de moteur et une roue éolienne (7). La roue éolienne comprend un moyeu (71), des aubes (72) et une jante (73). Une extrémité des aubes est reliée au moyeu, et la jante est placée autour des pointes des aubes; la section transversale des emplantures des aubes est elliptique. Ladite structure peut améliorer la force de liaison entre les aubes et le moyeu.
PCT/CN2014/072152 2013-11-07 2014-02-17 Turbine éolienne à axe horizontal WO2015066986A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320697404.1U CN203560040U (zh) 2013-11-07 2013-11-07 一种水平轴风力发电机
CN201320697404.1 2013-11-07

Publications (1)

Publication Number Publication Date
WO2015066986A1 true WO2015066986A1 (fr) 2015-05-14

Family

ID=50509766

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/072152 WO2015066986A1 (fr) 2013-11-07 2014-02-17 Turbine éolienne à axe horizontal

Country Status (2)

Country Link
CN (1) CN203560040U (fr)
WO (1) WO2015066986A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605657A (zh) * 2017-09-26 2018-01-19 南通大鲸智能科技有限公司 一种风力发电专用叶片

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19719221C1 (de) * 1997-05-07 1998-10-29 Roland Stelzer Rotorblatt, insbesondere für Windkraftanlagen
JP3991103B2 (ja) * 2003-07-07 2007-10-17 国立大学法人 琉球大学 七円弧薄型翼
CN201083185Y (zh) * 2007-04-18 2008-07-09 广州红鹰能源科技有限公司 一种小型风力发电机
CN201874756U (zh) * 2010-11-23 2011-06-22 山东安华拓源能源有限公司 扩散型风轮
CN102966487A (zh) * 2012-11-28 2013-03-13 苏州源源机械设备有限公司 水平轴降噪风力发电机风叶
CN103097722A (zh) * 2010-07-16 2013-05-08 Lm玻璃纤维制品有限公司 具有窄肩和相对厚的翼型型面的风力涡轮机叶片

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19719221C1 (de) * 1997-05-07 1998-10-29 Roland Stelzer Rotorblatt, insbesondere für Windkraftanlagen
JP3991103B2 (ja) * 2003-07-07 2007-10-17 国立大学法人 琉球大学 七円弧薄型翼
CN201083185Y (zh) * 2007-04-18 2008-07-09 广州红鹰能源科技有限公司 一种小型风力发电机
CN103097722A (zh) * 2010-07-16 2013-05-08 Lm玻璃纤维制品有限公司 具有窄肩和相对厚的翼型型面的风力涡轮机叶片
CN201874756U (zh) * 2010-11-23 2011-06-22 山东安华拓源能源有限公司 扩散型风轮
CN102966487A (zh) * 2012-11-28 2013-03-13 苏州源源机械设备有限公司 水平轴降噪风力发电机风叶

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