CN110905719A - Wind power blade and wind power generation equipment - Google Patents
Wind power blade and wind power generation equipment Download PDFInfo
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- CN110905719A CN110905719A CN201911218081.1A CN201911218081A CN110905719A CN 110905719 A CN110905719 A CN 110905719A CN 201911218081 A CN201911218081 A CN 201911218081A CN 110905719 A CN110905719 A CN 110905719A
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- 238000010248 power generation Methods 0.000 title abstract description 14
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
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- 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
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
- F03D1/0641—Rotors characterised by their aerodynamic shape of the blades of the section profile of the blades, i.e. aerofoil profile
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- 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
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- 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
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Wind Motors (AREA)
Abstract
The invention provides a wind power blade and wind power generation equipment, and relates to the technical field of wind power generation, wherein the wind power blade comprises: the suction surface shell, the pressure surface shell and the plurality of webs, wherein two opposite sides of each web are respectively connected with the inner wall of the suction surface shell and the inner wall of the pressure surface shell; the plurality of webs are sequentially arranged along the direction from the front edge to the rear edge of the wind power blade; at least two webs are arranged in the direction of the suction surface shell towards the pressure surface shell, the web close to the front edge of the two webs is inclined towards the front edge, and the web close to the rear edge of the two webs is inclined towards the rear edge, and the web close to the rear edge of the two webs is inclined towards the front edge, or one of the two webs is arranged in the direction of the suction surface shell towards the pressure surface shell, and the other web is inclined towards the front edge or the rear edge.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind power blade and wind power generation equipment.
Background
The fan blade is a key part of the wind driven generator, the performance of the fan blade directly influences the operation and stability of the whole wind driven generator, and the main reason for blade damage is the deformation coupling of the vibration in the modes of shimmy and flapping and the elastic blade.
The existing blade comprises a suction side shell and a pressure side shell, and a shear web fixed between the two shells, and the number of the webs is two, and the two webs are arranged between the suction side shell and the pressure side shell in parallel.
The suction surface shell, the pressure surface shell and the two webs form a box structure in an enclosing mode, the cross section of the box structure is newly installed to approach to a parallelogram, and when the blade waves, the box structure is stressed, so that the webs are approximately parallel to the waving direction at the moment, and the webs can provide better support; and when the blade shimmys, suction surface casing and pressure surface casing atress, at this moment, the web is close perpendicular with the direction of shimmying, and the support effect of web is not good, and the force of direction of shimmying passes through the web transmission more difficultly to because the cross section of box structure is close parallelogram, the box structure is out of shape easily, so, current blade bearing capacity in the direction of shimmying is more weak, and structural stability is low.
Disclosure of Invention
The invention aims to provide a wind power blade and wind power generation equipment, which are used for relieving the technical problem of low structural stability of the existing wind power blade.
In a first aspect, an embodiment of the present invention provides a wind turbine blade, where the wind turbine blade includes: the device comprises a suction surface shell, a pressure surface shell and a plurality of webs, wherein two opposite sides of each web are respectively connected with the inner wall of the suction surface shell and the inner wall of the pressure surface shell;
the webs are sequentially arranged along the direction from the front edge to the rear edge of the wind power blade;
at least two webs are present in the plurality of webs, and in the direction of the suction surface shell towards the pressure surface shell, the web close to the front edge of the two webs is inclined towards the front edge, and the web close to the rear edge of the two webs is inclined towards the rear edge, or the web close to the front edge of the two webs is inclined towards the rear edge, and the web close to the rear edge of the two webs is inclined towards the front edge, or one of the two webs is arranged in the direction of the suction surface shell towards the pressure surface shell, and the other web is inclined towards the front edge or the rear edge.
Furthermore, one of the two webs is connected with the inner wall of the suction surface shell and the inner wall of the pressure surface shell at a first connection position and a second connection position respectively, the other web is connected with the inner wall of the suction surface shell and the inner wall of the pressure surface shell at a third connection position and a fourth connection position respectively, the first connection position and the third connection position are spaced, and the second connection position and the fourth connection position are spaced.
Furthermore, one of the two webs is provided with a first edge and a second edge, the first edge is used for being connected with the inner wall of the suction surface shell, and the second edge is used for being connected with the pressure surface shell; a third edge and a fourth edge are arranged on the other web plate, the third edge is used for being connected with the inner wall of the suction surface shell, and the fourth edge is used for being connected with the pressure surface shell;
and the first edge is connected with the third edge, or the second edge is connected with the fourth edge.
Further, the number of the webs is at least three, and in any two adjacent webs, along the direction from the suction surface shell to the pressure surface shell, the web close to the front edge of the two webs inclines towards the front edge, and the web close to the rear edge of the two webs inclines towards the rear edge, or the web close to the front edge of the two webs inclines towards the rear edge, and the web close to the rear edge of the two webs inclines towards the front edge.
Further, the number of the webs is two, three or four.
Furthermore, the included angle between the plane of one web plate and the plane of the other web plate in the two web plates is 30-150 degrees.
Furthermore, longitudinal beams are arranged inside the suction surface shell and the pressure surface shell, and the web is respectively connected with the parts, embedded with the longitudinal beams, of the suction surface shell and the pressure surface shell.
Furthermore, the number of the longitudinal beams in the suction surface shell and the pressure surface shell is multiple.
Furthermore, the suction surface shell and the pressure surface shell both comprise a main body, an inner skin and an outer skin, the inner skin covers the inner surface of the main body, and the outer skin covers the outer surface of the main body.
Furthermore, the web is provided with a connecting plate at the edge for respectively connecting with the suction surface shell and the pressure surface shell, and the connecting plate is connected with the suction surface shell and the pressure surface shell through an adhesive.
In a second aspect, the embodiment of the invention provides a wind power generation device, which includes the wind power blade.
The embodiment of the invention provides a wind power blade, which comprises: the device comprises a suction surface shell, a pressure surface shell and a plurality of webs, wherein two opposite sides of each web are respectively connected with the inner wall of the suction surface shell and the inner wall of the pressure surface shell; the webs are sequentially arranged along the direction from the front edge to the rear edge of the wind power blade; at least two webs are present in the plurality of webs, and in the direction of the suction surface shell towards the pressure surface shell, the web close to the front edge of the two webs is inclined towards the front edge, and the web close to the rear edge of the two webs is inclined towards the rear edge, or the web close to the front edge of the two webs is inclined towards the rear edge, and the web close to the rear edge of the two webs is inclined towards the front edge, or one of the two webs is arranged in the direction of the suction surface shell towards the pressure surface shell, and the other web is inclined towards the front edge or the rear edge, that is, in the direction of the suction surface shell towards the pressure surface shell, the distance between the two webs is gradually increased or gradually reduced. Compare with current wind-powered electricity generation blade, have two webs that the interval gradually changed in the wind-powered electricity generation blade of this application, support suction surface casing and pressure surface casing that these two webs can be more stable. The cross section of a box structure formed by the two webs and the suction surface shell and the pressure surface shell is trapezoidal, or the cross section of a box formed by the two webs and the suction surface shell or the pressure surface shell is triangular, the cross section of the box structure is trapezoidal or triangular, the supporting stability of the box structure is superior to that of a box structure in the prior art which is parallelogram, the two webs can provide supporting component force in the motion direction no matter when the blade swings or oscillates, external force can be transmitted through the web structures, and the gathering of the external force can be reduced. Through the setting mode that changes the web, can improve wind-powered electricity generation blade's structural stability, just can reduce the casing of fan blade and spread layer thickness like this when processing manufacturing wind-powered electricity generation blade to can reduce wind-powered electricity generation blade's weight and processing cost.
The wind power generation equipment provided by the embodiment of the invention comprises the wind power blade. Because the wind power generation equipment provided by the embodiment of the invention adopts the wind power blade, the wind power generation equipment provided by the embodiment of the invention also has the advantages of the wind power blade.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a sectional view of a wind turbine blade provided in embodiment 1 of the present invention;
fig. 2 is a sectional view of a wind turbine blade provided in embodiment 2 of the present invention;
fig. 3 is a sectional view of a wind turbine blade provided in embodiment 3 of the present invention;
fig. 4 is a cross-sectional view of a wind turbine blade provided in embodiment 4 of the present invention.
Icon: 110-suction side shell; 120-pressure side shell; 200-a web; 300-longitudinal beam.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, a wind turbine blade provided in an embodiment of the present invention includes: the suction surface shell 110, the pressure surface shell 120 and a plurality of webs 200, wherein two opposite sides of the webs 200 are respectively connected with the inner wall of the suction surface shell 110 and the inner wall of the pressure surface shell 120. The webs 200 are arranged in sequence along the direction from the front edge to the rear edge of the wind power blade. At least two webs 200 are present in the plurality of webs 200, and in the direction from the suction surface shell 110 to the pressure surface shell, the web 200 near the leading edge of the two webs 200 is inclined towards the leading edge, and the web 200 near the trailing edge of the two webs 200 is inclined towards the trailing edge, or in the direction from the suction surface shell 110 to the pressure surface shell, the web 200 near the leading edge of the two webs 200 is inclined towards the trailing edge, and the web 200 near the trailing edge is inclined towards the leading edge, that is, in the direction from the suction surface shell 110 to the pressure surface shell, the distance between the two webs 200 is gradually increased or gradually decreased, and the cross-sectional shapes of the two webs 200 can be in a positive "eight" shape or an inverted "eight" shape.
Compare with current wind-powered electricity generation blade, it is different that there are two incline directions in the wind-powered electricity generation blade in this application, and the web 200 of interval gradual change, these two webs 200 can be more stable support suction surface casing 110 and pressure surface casing 120. Because the two webs 200 have different inclination directions, the two webs 200 can provide supporting force components in the motion direction when the blade is flap or shimmy, and external force can be transmitted through the web 200 structure, so that the concentration of the external force can be reduced. The cross section of the box structure enclosed by the two webs 200 and the suction surface shell 110 and the pressure surface shell 120 is trapezoidal, or the cross section of the box structure enclosed by the two webs 200 and the suction surface shell 110 or the pressure surface shell 120 is triangular, and the support stability of the box structure is superior to that of the box structure in the prior art which is parallelogram.
Through changing the setting mode of web 200, can improve wind-powered electricity generation blade's stability, just can reduce the casing of fan blade and spread layer thickness like this when processing manufacturing wind-powered electricity generation blade to can reduce wind-powered electricity generation blade's weight and processing cost.
Of the two webs 200, one of the webs 200 is connected to the inner wall of the suction surface shell 110 and the inner wall of the pressure surface shell 120 at a first connection point and a second connection point, and the other web 200 is connected to the inner wall of the suction surface shell 110 and the inner wall of the pressure surface shell 120 at a third connection point and a fourth connection point, wherein the first connection point and the third connection point are spaced, and the second connection point and the fourth connection point are spaced.
In an embodiment of the present invention, in the direction from the suction surface shell 110 to the pressure surface shell, the two webs 200, the web 200 inclined toward the front edge and the inner wall of the suction surface shell 110 are connected at a first connection point, the web 200 inclined toward the rear edge and the inner wall of the suction surface shell 110 are connected at a third connection point, and a gap is formed between the first connection point and the third connection point. In this embodiment, the direction in which the distance between two webs in opposite directions of inclination increases is toward the suction surface casing.
In another embodiment of this embodiment, in the direction from the suction surface shell 110 to the pressure surface shell, the two webs 200, the web 200 inclined to the rear edge and close to the front edge, and the inner wall of the pressure surface shell 120 are connected at a second connection point, the web 200 inclined to the front edge and close to the rear edge and the inner wall of the pressure surface shell 120 are connected at a fourth connection point, and a gap is formed between the second connection point and the fourth connection point. In this embodiment, the direction of increasing spacing of the two webs in opposite directions of inclination is towards the pressure surface shell.
The number of webs 200 within a wind blade may be two, three or four, or even more. In the present embodiment, the number of the webs 200 is two for illustration, and the two webs 200 are not connected to each other, and both of them always have a gap in the direction from the leading edge to the trailing edge of the wind turbine blade. The distance between the two webs 200 may be increased toward the suction surface housing 110 and toward the pressure surface housing 120, so that the two webs 200, the suction surface housing 110 and the pressure surface housing 120 may enclose a box shape with a cross section similar to a trapezoid.
In the prior art, two parallel webs 200 are similar to the direction of the leading edge towards the trailing edge of perpendicular to wind power blade, can't transmit the external force of shimmy direction basically, compare in prior art the single problem of the transmission route of blade shimmy direction external force, and when the wind power blade of this embodiment shimmy, external force can transmit through the web 200 of slope, has alleviated the unsmooth problem of shimmy direction external force transmission.
The angle between the plane of one of the two webs and the plane of the other web can be in the range of 30-150 degrees. When the edges of the two web plates are connected, the included angle of the joint of the two web plates ranges from 30 degrees to 150 degrees; when the two webs are arranged at intervals, the included angle of the extension of the plane of the two webs ranges from 30 degrees to 150 degrees.
The longitudinal beams 300 are arranged inside the suction surface shell 110 and the pressure surface shell 120, and the web 200 is respectively connected with the parts of the suction surface shell 110 and the pressure surface shell 120, which are embedded with the longitudinal beams 300.
The longitudinal beams 300 can be laid by carbon fiber, the web 200 is connected to the areas of the suction surface shell 110 and the pressure surface shell 120 embedded with the longitudinal beams 300, and the longitudinal beams 300 in the suction surface shell 110 and the pressure surface shell 120 are integrated.
The number of the longitudinal beams 300 in the suction surface shell 110 and the pressure surface shell 120 is plural, one longitudinal beam 300 is provided at the joint of each web 200 and the subject, and the plurality of longitudinal beams 300 may not be connected together.
The suction surface shell 110 and the pressure surface shell 120 each include a main body, an inner skin covering an inner surface of the main body, and an outer skin covering an outer surface of the main body. The inner skin and the outer skin can be bonded to the main body through adhesives.
The body and stringer 300 are molded by casting.
The root of the wind power blade can be embedded with a structure enhancement layer structure for increasing the fracture resistance of the root.
The web 200 is provided with a connecting plate at the edge for respectively connecting with the suction surface shell 110 and the pressure surface shell 120, and the connecting plate is connected with the suction surface shell 110 and the pressure surface shell 120 through an adhesive. The web 200 may be in an "i" shape, and the connecting plate and the shell are connected together by an adhesive.
Two adjacent webs 200 can be connected the location through the glass steel strip between, and the both ends of glass steel strip are connected with two adjacent webs 200 face each other towards the face each other respectively, play the positioning action.
The wind power blade assembly method provided by the embodiment of the invention comprises the following steps: after web 200 preparation is accomplished, earlier make up into a whole to a plurality of webs 200 with web 200 group to the frock, rethread web 200 lifts by crane the frock and wholly hangs to blade shell top, fixes a position the frock through web 200, and web 200 and casing pass through the adhesive and connect, adopt web 200 to push down the frock earlier and make the adhesive natural curing who is connected between web 200 and the casing after the location, then carry out the blade compound die and heat postcure operation.
Example 2
The difference from the embodiment 1 is that, as shown in fig. 2, one of the two webs 200 is provided with a first edge and a second edge, the first edge is used for connecting with the inner wall of the suction surface shell 110, and the second edge is used for connecting with the pressure surface shell 120; a third edge and a fourth edge are arranged on the other web 200, the third edge is used for connecting with the inner wall of the suction surface shell 110, and the fourth edge is used for connecting with the pressure surface shell 120;
and the first edge is connected with the third edge, or the second edge is connected with the fourth edge.
In an embodiment of the present invention, in a direction from the suction surface shell 110 to the pressure surface shell, a first edge is provided on the web 200, which is close to the front edge and inclined to the front edge, of the two webs 200, and the first edge is used for connecting with the inner wall of the suction surface shell 110; a third edge is arranged on the web 200 which is close to the rear edge and inclines towards the rear edge, the third edge is used for connecting with the inner wall of the suction surface shell 110, and the first edge is connected with the third edge. In this embodiment, the direction in which the distance between two webs in opposite directions of inclination increases is toward the suction surface casing.
In another embodiment of this embodiment, in the direction from the suction surface shell 110 to the pressure surface shell, a second edge is provided on the web 200, which is close to the front edge and inclined to the rear edge, of the two webs 200, and the third edge is used for connecting with the inner wall of the pressure surface shell 120; a fourth edge is arranged on the web 200 which is close to the rear edge and inclined towards the front edge, the fourth edge is used for connecting with the inner wall of the pressure surface shell 120, and the second edge is connected with the fourth edge. In this embodiment, the direction of increasing spacing of the two webs in opposite directions of inclination is towards the pressure surface shell.
The number of webs 200 within a wind blade may be two, three or four, or even more. In the present embodiment, the number of the webs 200 is two, the two webs 200 are connected together at the position with the minimum distance, and the cross-sectional shapes of the two webs 200 are V-shaped. The distance between the two webs 200 may be increased toward the suction surface housing 110 or toward the pressure surface housing 120, so that the two webs 200 and the suction surface housing 110 or the pressure surface housing 120 may enclose a box shape with a cross section similar to a triangle. The triangle is one of the most stable structures, and plays a stable supporting role for both the pressure surface shell 120 and the suction surface shell 110, so that the wind power blade structure is more stable and the strength is higher.
Example 3
As shown in fig. 3, the difference from embodiment 1 is that the number of the webs 200 is at least three, and in any two adjacent webs 200, in the direction from the suction surface shell 110 to the pressure surface shell, the web close to the leading edge of the two webs 200 is inclined toward the leading edge, and the web close to the trailing edge of the two webs 200 is inclined toward the trailing edge, or the web close to the leading edge of the two webs is inclined toward the trailing edge, and the web close to the trailing edge of the two webs is inclined toward the leading edge.
In this embodiment, the number of the webs may be three or four, but is not limited to three or four, and may be more. When the number of the webs is three, the cross sections of the three webs form an approximately "N" shaped structure, and when the number of the webs is four, the cross sections of the four webs form an approximately "M" shape. The plurality of webs 200 form a multi-point support, and the stability of the internal support of the wind turbine blade is better.
Example 4
The difference from embodiment 1 is that one of the two webs is arranged along the suction surface shell in the direction of the pressure surface shell, and the other web is inclined towards the leading edge or the trailing edge.
As shown in fig. 4, in the present embodiment, the two webs 200 may be connected or spaced apart, when the two webs 200 are connected, the two webs 200 and the suction surface shell 110 or the pressure surface shell 120 can enclose a structure close to a right trapezoid, and when the two webs 200 are spaced apart, the two webs 200 respectively enclose a shape close to a right trapezoid in the suction surface shell and the pressure surface shell. No matter be right trapezoid or right triangle, stability all is higher than current web structure, sets up the web through foretell mode, can make the intensity of blade higher.
The wind power generation equipment provided by the embodiment of the invention comprises the wind power blade. Because the wind power generation equipment provided by the embodiment of the invention adopts the wind power blade, the wind power generation equipment provided by the embodiment of the invention also has the advantages of the wind power blade.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A wind turbine blade, comprising: the device comprises a suction surface shell (110), a pressure surface shell (120) and a plurality of webs (200), wherein two opposite sides of each web (200) are respectively connected with the inner wall of the suction surface shell (110) and the inner wall of the pressure surface shell (120);
the webs (200) are sequentially arranged along the direction from the front edge to the rear edge of the wind power blade;
at least two webs (200) are arranged in the plurality of webs (200), and in the direction from the suction surface shell (110) to the pressure surface shell, the web (200) close to the front edge of the two webs (200) inclines towards the front edge, and the web (200) close to the rear edge inclines towards the rear edge, or the web (200) close to the front edge of the two webs (200) inclines towards the rear edge, and the web (200) close to the rear edge inclines towards the front edge, or one web (200) of the two webs (200) is arranged in the direction from the suction surface shell (110) to the pressure surface shell (120), and the other web (200) inclines towards the front edge or the rear edge.
2. The wind turbine blade as claimed in claim 1, wherein one of the two webs (200) is connected to the inner wall of the suction surface shell (110) and the inner wall of the pressure surface shell (120) at a first connection and a second connection, respectively, and the other web (200) is connected to the inner wall of the suction surface shell (110) and the inner wall of the pressure surface shell (120) at a third connection and a fourth connection, respectively, wherein the first connection and the third connection are spaced apart, and the second connection and the fourth connection are spaced apart.
3. The wind turbine blade as claimed in claim 1, wherein one of the two webs (200) is provided with a first edge and a second edge, the first edge being used for connecting with the inner wall of the suction surface shell (110), and the second edge being used for connecting with the pressure surface shell (120); a third edge and a fourth edge are arranged on the other web plate (200), the third edge is used for being connected with the inner wall of the suction surface shell (110), and the fourth edge is used for being connected with the pressure surface shell (120);
and the first edge is connected with the third edge, or the second edge is connected with the fourth edge.
4. The wind turbine blade according to claim 1, wherein the number of the webs (200) is at least three, and in any two adjacent webs (200), in the direction from the suction surface shell (110) to the pressure surface shell, the web (200) of the two webs (200) near the leading edge is inclined towards the leading edge, and the web (200) of the two webs (200) near the trailing edge is inclined towards the trailing edge, or the web (200) of the two webs (200) near the leading edge is inclined towards the trailing edge, and the web (200) of the two webs (200) near the trailing edge is inclined towards the leading edge.
5. Wind blade according to claim 4, characterized in that the number of webs (200) is two, three or four.
6. The wind blade according to claim 1, wherein the plane of one of the webs (200) is at an angle of 30-150 degrees to the plane of the other web (200) in the two webs (200).
7. The wind power blade as claimed in claim 1, wherein longitudinal beams (300) are arranged inside the suction surface shell (110) and the pressure surface shell (120), and the web (200) is connected with the parts of the suction surface shell (110) and the pressure surface shell (120) in which the longitudinal beams (300) are embedded respectively.
8. Wind turbine blade according to claim 7, wherein the number of stringers (300) within the suction side shell (110) and the pressure side shell (120) is multiple.
9. The wind turbine blade as claimed in claim 1, wherein the web (200) is provided with a connecting plate at the edge for connecting with the suction side shell (110) and the pressure side shell (120), respectively, and the connecting plate is connected with the suction side shell (110) and the pressure side shell (120) by an adhesive.
10. A wind power plant, characterized by comprising a wind blade according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218081.1A CN110905719A (en) | 2019-12-02 | 2019-12-02 | Wind power blade and wind power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218081.1A CN110905719A (en) | 2019-12-02 | 2019-12-02 | Wind power blade and wind power generation equipment |
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| CN110905719A true CN110905719A (en) | 2020-03-24 |
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| CN201911218081.1A Pending CN110905719A (en) | 2019-12-02 | 2019-12-02 | Wind power blade and wind power generation equipment |
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| CN (1) | CN110905719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023126042A1 (en) * | 2021-12-29 | 2023-07-06 | Vestas Wind Systems A/S | A wind turbine blade and a method for manufacturing a wind turbine blade |
Citations (10)
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| WO2023126042A1 (en) * | 2021-12-29 | 2023-07-06 | Vestas Wind Systems A/S | A wind turbine blade and a method for manufacturing a wind turbine blade |
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