Methods for manufacturing and assembling sectional type wind power blade
A technology for wind power blades and manufacturing methods, applied in the field of manufacture and assembly of segmented wind power blades, capable of solving problems such as uneven stiffness distribution, increased blade weight, and complex vibration characteristics of blades, and achieving increased bonding area and bonding strength big effect
Active Publication Date: 2014-02-26
JILIN CHONGTONG CHENGFEI NEW MATERIAL
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Problems solved by technology
The disadvantages of this technique are quite significant:
[0004] 1) The reinforcement of the segmental connection increases the weight of the blade;
[0005] 2) The stiffness distribution is uneven, and the vibration characteristics of the blade become complicated;
[0006] 3) The center of gravity of the blade is closer to the tip of the blade, resulting in a larger moment of inertia of the blade
[0008] 1) This method is more secure, but the weight of the unit will increase significantly;
Method used
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0039] See figure 1 , figure 1 It is a flow chart of an embodiment of the manufacturing method of the segmented wind power blade of the present invention. The segmented wind turbine blade of this embodiment includes the following steps:
[0040] S101. Segmentation of the girder: using a segment line as a standard, the girder is laid in staggered layers in the length direction so that it is disconnected in the direction of the oblique line, and the girder is divid...
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The invention provides a method for manufacturing an electric sectional type wind power blade. The method comprises the following steps: by taking a sectional line as a standard, laying a girder in the length direction in a staggered sectional manner to disconnect the girder in the oblique line direction, wherein the staggered surface of a blade tip girder is complementary to the staggered surface of a blade root girder; shell sectioning: by taking the sectional line as the standard, vertically sectioning a shell in the length direction; filling molding: placing the blade tip girder on a blade tip shell, and placing the blade root girder on a blade root shell for filling molding; web sectioning: by taking the sectional line as the standard, vertically dividing a web in the length direction into three sections at positions spaced from the front and rear parts of the sectional line by a predetermined distance; blade die assembly: respectively placing a blade tip web and a blade root web on the blade tip girder and the blade root girder, which are molded by filling, at an interval for die assembly of a wind power blade; blade drawing: drawing the wind power blade to obtain the sectional type wind power blade.
Description
technical field [0001] The invention relates to a method for manufacturing and assembling segmented wind power blades. Background technique [0002] With the development of wind power technology and the gradual deepening of wind farm development, how to economically and effectively utilize wind resources in weak wind areas has become a hot topic in the industry. The most simple and direct way is to increase the diameter of the wind rotor and increase the sweeping area, which requires longer blades to appear. There are many mountainous and hilly wind farms in mainland China, and even the road conditions of plain wind farms mostly do not meet the transportation conditions for super-long blades. To solve the transportation problem, one is to build roads, and the other is to transport the blades in sections. [0003] The domestic technology basically adopts the overall segment of FRP, and the connection is strengthened into a shape similar to the blade root flange, which is co...
Claims
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IPC IPC(8): B29C70/34
CPCB29C70/36
Inventor 钟虎平张午生文蕾
Owner JILIN CHONGTONG CHENGFEI NEW MATERIAL