WO2020021135A1 - Pale divisible pour éoliennes - Google Patents

Pale divisible pour éoliennes Download PDF

Info

Publication number
WO2020021135A1
WO2020021135A1 PCT/ES2019/070231 ES2019070231W WO2020021135A1 WO 2020021135 A1 WO2020021135 A1 WO 2020021135A1 ES 2019070231 W ES2019070231 W ES 2019070231W WO 2020021135 A1 WO2020021135 A1 WO 2020021135A1
Authority
WO
WIPO (PCT)
Prior art keywords
sections
blade
divisible
wind turbines
straps
Prior art date
Application number
PCT/ES2019/070231
Other languages
English (en)
Spanish (es)
Inventor
Emmanuel GARCÍA DE LA PEÑA RAZQUIN
Original Assignee
Emprending Business, S.L.
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 Emprending Business, S.L. filed Critical Emprending Business, S.L.
Publication of WO2020021135A1 publication Critical patent/WO2020021135A1/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
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • 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

  • Another problem derived from said mechanical joints is that they involve the unwanted incorporation of important masses of metal, usually steel, at a distance substantially away from the root or point of attachment of the blade to the rest of the wind turbine.
  • Figure 4 shows a perspective view of the divisible blade for wind turbines object of the present invention, in which the straps are half threaded through the divisible blade for wind turbines.
  • Figure 6 shows a schematic sectional view of a longitudinal end of a section comprised in the divisible blade for wind turbines object of the present invention.
  • Figures 9A and 9B show schematic sectional views of the root comprised in the divisible blade for wind turbines object of the present invention, according to another embodiment.
  • Figure 1 shows one of the female profiles (3) and one of the male profiles (4). Accordingly, in said figure 1 it is appreciable that, preferably, both the channel of the female profile (3) and the projection of the male profile (4) form a closed geometric shape from a transverse point of view of the sections (1) .
  • These geometric shapes can be, or resemble, for example, a drop-shaped geometry, a circle, a square, a triangle, etc. Alternatively, these geometric shapes can be like the cross-section of the divisible blade for wind turbines, or similar to it.
  • the female profiling (3) and the male profiling (4) have complementary dimensions and geometries so that once the fit is established, the male profiling (4) is received or housed in the feminine profiling (3) in a tight manner .
  • This arrangement provides an overlap or contact between the aforementioned profiles (3, 4) that makes it possible to establish an efficient and safe transmission of forces and moments, such as the flectors, which can be generated in the divisible blade for wind turbines.
  • poles can be used to introduce the strings (6 ') from the root (2) to the tip (5), for example through the holes (7), so that at the tip (5) the joint between said ropes (6 ') and a longitudinal end of the poles is moved.
  • the strings (6 ') are extended internally along the divisible blade for wind turbines inside the holes (7) and through holes (8') of the sections ( 1) and consequently the straps (6) attached to said cords (6 ') as well.
  • At least one of the two ends of the straps (6) is directly retained by one of the rings (8) by the retaining elements (9), in accordance with that shown in Figure 6. Accordingly, the other of the two ends of the straps (6) is indirectly retained by another of the rings (8).
  • the tension means are blocking elements (1 1), such as cylindrical configuration bodies with a head in one part and a free end threaded in another part.
  • the locking elements (11) can be screws or bolts.
  • Said blocking elements (1 1) are appreciable according to their arrangement in Figure 10.
  • the plate (10) has passages (10 ’), which can be threaded to establish the axial position of the blocking elements (1 1) therethrough.
  • the blocking elements (1 1) may include nuts, as they are reflected but not referenced in Figure 10, in order to also establish the axial position of the blocking elements (1 1) through the plate (10) being positioned in the opposite part of the plate (10) to that of insertion of the blocking elements (1 1), and of location of the heads.
  • Figure 8 which shows a detailed view of the root (2) shown in Figure 7, the two exemplary embodiments are combinable, that is, the tension means are a combination of the elements of lock (1 1) and actuators (12).
  • Figure 7 shows the divisible blade for wind turbines in a single and consistent unit.

Landscapes

  • 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)
  • Wind Motors (AREA)

Abstract

Selon l'invention, une pale divisible pour éoliennes comprend des segments (1) longitudinalement accouplables entre eux engendrant des extrémités longitudinales de la pale divisible pour éoliennes, un profil femelle (3) au niveau d'une extrémité longitudinale d'un des segments (1), lequel est conçu sous forme de canal, un profil mâle (4) au niveau d'une extrémité longitudinale d'un autre des segments (1), lequel est conçu sous forme de partie saillante, de manière à être insérable dans le profil femelle (3), et des sangles (6) disponibles longitudinalement dans les segments (1), une extrémité des sangles (6) étant longitudinalement retenue dans un des segments (6) et l'autre extrémité des sangles (6) étant longitudinalement retenue dans un autre des segments (1), lesdites sangles (6) étant disponibles de manière à transmettre une force d'attraction aux segments (1) de retenue des extrémités entre elles, de manière à pouvoir maintenir les segments (1) longitudinalement accouplés entre eux.
PCT/ES2019/070231 2018-07-25 2019-04-05 Pale divisible pour éoliennes WO2020021135A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201831175U ES1218380Y (es) 2018-07-25 2018-07-25 Pala divisible para aerogeneradores
ESU201831175 2018-07-25

Publications (1)

Publication Number Publication Date
WO2020021135A1 true WO2020021135A1 (fr) 2020-01-30

Family

ID=63668591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2019/070231 WO2020021135A1 (fr) 2018-07-25 2019-04-05 Pale divisible pour éoliennes

Country Status (2)

Country Link
ES (1) ES1218380Y (fr)
WO (1) WO2020021135A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009061478A1 (fr) * 2007-11-06 2009-05-14 Flexsys, Inc. Surfaces à commande active pour pales d'éolienne
WO2009135902A2 (fr) * 2008-05-07 2009-11-12 Vestas Wind Systems A/S Aube sectionnelle
EP2930350A1 (fr) * 2014-04-11 2015-10-14 Siemens Aktiengesellschaft Pale de rotor segmenté avec un raccord à boulon
ES1147135U (es) * 2015-11-11 2015-12-04 Tupac José CANOSA DIAZ Pala de aerogenerador

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009061478A1 (fr) * 2007-11-06 2009-05-14 Flexsys, Inc. Surfaces à commande active pour pales d'éolienne
WO2009135902A2 (fr) * 2008-05-07 2009-11-12 Vestas Wind Systems A/S Aube sectionnelle
EP2930350A1 (fr) * 2014-04-11 2015-10-14 Siemens Aktiengesellschaft Pale de rotor segmenté avec un raccord à boulon
ES1147135U (es) * 2015-11-11 2015-12-04 Tupac José CANOSA DIAZ Pala de aerogenerador

Also Published As

Publication number Publication date
ES1218380U (es) 2018-10-02
ES1218380Y (es) 2018-12-26

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