A method for bonding wind turbine blades
A technology for wind turbines and wind rotor blades, which can be applied to other household appliances, household appliances, household components, etc., and can solve problems such as the inability to eliminate the quality risk of trailing edge bonding, the increase in the thickness of the bonding adhesive layer, and the quality risk of blades , to achieve the effect of solving the problem of super thick bonding adhesive layer, good supporting effect, improving blade quality and working efficiency
Active Publication Date: 2018-07-31
SINOMATECH FUNING WIND POWER BLADE
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Problems solved by technology
In general, during the bonding process of the trailing edge of wind turbine blades, in order to control the thickness of the adhesive, hand lay-up or prefabricated parts are used in the area near the blade root due to the large gap, and in the area near the blade tip due to the small gap , using direct bonding, because it is impossible to operate in the transition area, the thickness of the adhesive layer is usually relatively large during bonding, which causes a greater risk to the quality of the blade
The prior art uses soft laminates or airbags, which have certain flexibility due to the bonding angle after molding. Therefore, in the process of mold clamping and bonding, due to the cohesive force of the adhesive, the bonded preforms are deformed, resulting in the bonding of the adhesive layer. Increased thickness, so quality risk of trailing edge bonding is still not eliminated
Method used
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Embodiment 1
[0021] A method for bonding wind turbine blades, comprising the following steps:
[0022] a. Production of trailing edge bonded prefabricated parts:
[0023] like figure 1 As shown, according to the shape of the inner cavity of the fan blade trailing edge bonding area, the thickness of the adhesive layer is deducted 5mm, designed and manufactured with rigid foam as the internal sandwich (1), using 5 layers of biaxial [±45°] 808g / m 2 The glass fiber cloth (2) is wrapped in a "C" on the rigid foam to prepare a trailing edge bonded prefabricated part (3);
[0024] b. Laying of the blade skin shell:
[0025] First, lay the outer skin, main beam, core material, root reinforcement and inner skin of the blade. After these steps are completed, if figure 2 As shown, the trailing edge bonding prefabricated part (3) made in step a is laid on the trailing edge of the blade, the perfusion auxiliary material and vacuum auxiliary material are laid on the inner skin surface of the blade,...
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Abstract
The invention discloses an adhering method for a wind turbine blade of a wind driven generator. The method comprises the following steps: manufacturing a rear edge adhesion prefabricated piece, laying a blade skin shell, and adhering upper and lower side skins of the blade and a web plate. According to the adhering method for the wind turbine blade of the wind driven generator, the process design is reasonable; in particular, by the adoption of the rear edge adhesion prefabricated piece, as hard foam achieves an extremely good supporting effect in an adhesive extrusion process, the compressive deformation capacity can be improved; the problem that an adhesive layer in the rear edge region is too thick during blade adhesion in the prior art can be solved, and the blade quality and the working efficiency can be greatly improved.
Description
technical field [0001] The invention relates to a method for preparing blades of a wind-driven generator, in particular to a method for bonding blades of a wind-driven generator. Background technique [0002] The blade is a key component of the wind turbine system, and bonding technology is one of the key technologies in the blade forming process. In general, during the bonding process of the trailing edge of wind turbine blades, in order to control the thickness of the adhesive, hand lay-up or prefabricated parts are used in the area near the blade root due to the large gap, and in the area near the blade tip due to the small gap , using direct bonding, because it is impossible to operate in the transition area, the thickness of the adhesive layer is usually relatively large during bonding at present, which poses a greater risk to the quality of the blade. The prior art uses soft laminates or airbags, which have certain flexibility due to the bonding angle after molding. T...
Claims
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IPC IPC(8): B29D99/00
CPCB29D99/0028
Inventor 王刚李辉徐俊孙玉权陈亚军
Owner SINOMATECH FUNING WIND POWER BLADE