Perfusion system and perfusion forming process for pre-buried wind power blade root

Abstract

The invention discloses a perfusion system for a pre-buried wind power blade root. The perfusion system comprises one or more layers of flow guide nets paved on glass fiber cloth on the inner surfaceof a blade root shell, a vacuum bag film is arranged on the surfaces of the flow guide nets, an extended glue injection ohm tube and a chordwise glue injection ohmic tube which are crossed and vertically arranged are arranged between the flow guide nets and the vacuum bag film, and a glue injection port is formed in the intersection of the extended glue injection ohm tube and the glue injection ohmic tube. The invention further provides a perfusion molding process of the blade root of the wind power blade. According to the perfusion system, the extended glue injection ohm tube and the chordwise glue injection ohmic tube which are arranged in a T shape are adopted, only two glue injection tubes and one glue injection port are needed, and resin has the flow matching of extension flow and chordwise direction, so that the root irrigation is ensured; in the perfusion process, only one pipe needs to be opened for one time and is easy to operate and control, so that the problem that the switch timing of the multiple glue injection tubes is not easy to control is solved, the problem that the infiltration is poor due to the fact that the bag flow occurs is solved, and meanwhile, the risk offilling air leakage of the multiple glue injection ports is also reduced.

Description

technical field [0001] The invention belongs to the field of composite material molding, and in particular relates to a pouring system and a pouring molding process for blade roots of wind power blades. Background technique [0002] With the advancement of national energy conservation and emission reduction policies, green and environmentally friendly energy is the key development direction in the future. Wind energy has the advantages of low energy consumption, environmental protection, and large reserves, and has become a key energy source for development at home and abroad. A wind turbine is a device that converts wind energy into electrical energy, and the blade is one of the core components of the wind turbine. In the production process of the blade, the runner laying process is the most critical forming process, and the quality of the runner laying directly affects the perfusion effect of the blade. [0003] In the whole blade, the glass fiber cloth layer at the root...

AI Technical Summary

Problems solved by technology

[0004] The Chinese invention patent with the publication number CN107199715A discloses a bolt sleeve pre-embedded blade root injection method. The method adopts a one-way arrangement of glue injection pipes, that is, the direction of the core of the glue injection pipe is the spanwise direction of the blade, and multiple pipes are arranged side by side in the chord direction. In the leaf root flow channel made by this method, the number of injection pipes needs to be many, and there are many injection ports, and the risk of perfusion air leakage is high. During the perfusion process, the opening timing of each injection hose needs to be controlled accurately, and the timing of opening the pipes is not well controlled. The problem of entrapment is prone to occur, resulting in poor root infiltration. In addition, the flow channel is not simple and quick to operate, and the cost is relatively high

Images