Vacuum infusion and flow guide system and infusion and flow guide method for reinforcing plate of wind turbine blade

Abstract

The invention discloses a vacuum infusion and flow guide system and an infusion and flow guide method for a reinforcing plate of a wind turbine blade. The vacuum infusion and flow guide system comprises a reinforcing plate mold (1), a core material (2) mounted on the reinforcing plate mold (1), a flow guide net (3) laid on the glass fiber upper skin of the core material (2) and a flow guide groove omega tube (4) laid on one side of the reinforcing plate mold (1), wherein a glue injection port (5) is formed in the flow guide groove omega tube (4), a spiral tube (6) is mounted on the opposite side of the reinforcing plate mold (1), a suction port (7) is connected to the spiral tube (6), and bi-directional shallow slots (2-1) are formed in the upper surface and the lower surface of the core material (2). The vacuum infusion and flow guide system is reasonable in structural design, resin flows on the upper surface and the lower surface uniformly and isocratically through opposite side drainage, the technical defect of white spots formed on the surface due to the fact that local annular loop is formed because glue solution flows downwards to the lower surface can be overcome, the mechanical strength of the prepared reinforcing plate of the blade is high, the firm degree is high, and the service life is long.

Description

technical field [0001] The patent of the present invention relates to a preparation equipment for fan blade ribs, in particular to a vacuum infusion and diversion system for ribs in wind power generation blades that can effectively control the flow rate and direction of flow of resin glue, and can effectively improve the white spots on the surface of ribs. The perfusion diversion method belongs to the technical field of wind power generation. Background technique [0002] China's wind power industry started in 2005. After 9 years of rapid development, the products of wind turbines have been rapidly enriched, and there are dozens of models. The wind fields covered by it range from super class one to weak class four. [0003] Fan blades are one of the key components for converting wind energy. The stability of their operation is extremely important for wind turbine power generation. In wind power generation blades, the ribs mainly bear the shear force of the blades and are an...

AI Technical Summary

Problems solved by technology

However, in the current vacuum infusion process, due to the uneven flow rate of the resin on the core material of the ribs, it is easy to cause local spots and uneven infiltration of the resin, resulting in white spots on the surface of the ribs, affecting the strength of the ribs, and reducing the quality of the blade, especially for the length For fan blades with long length and high power generation, there are certain safety hazards

[0004] Therefore, it is necessary to design and develop a structure with a reasonable design on the basis of the existing technology, which can effectively avoid the compensation of the lower surface due to the glue in the core material hole, so that the glue injection speed of the rib plate on the upper and lower sides of the core material is not fast. Vacuum perfusion and diversion system and its perfusion and diversion method that are uniform, prone to partial encapsulation, and form spot-like white spots on the surface

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