Plate for making wind turbine blades, wind turbine blade spar cap structure and preparation method

A wind turbine blade and cap structure technology, which is applied to mechanical equipment, wind power engines, machines/engines, etc., can solve the problems of reducing the strength of the blade forming structure and increasing the distance between plates, so as to improve the bonding strength between layers and reduce the perfusion Effect
CN110242511BActive Publication Date: 2021-04-30SWANCOR ADVANCED MATERIALS CO LTD
21 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SWANCOR ADVANCED MATERIALS CO LTD
Publication Date
2021-04-30

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a plate for making wind turbine blades, a wind turbine blade spar cap structure and a preparation method, and relates to a rotor blade for a wind turbine. The plate is made of fiber materials and curable materials, and its upper surface and / or lower surface There are stripping grooves along the length of the sheet. The pultruded sheet has two side structures on both sides of the stripping groove. Each side structure is provided with at least one stripping groove for connecting adjacent sheets. The drainage groove and the blade spar cap structure are mainly made of stacked plates and cured by resin. By using the release cloth groove on the board as a channel for resin flow, there is no need to make grooves on the board by grinding in the later stage, so that the fibers near the surface of the board will not break and will not affect the structural strength of the board; through the side of the board Drainage grooves are arranged on the side, so that the resin can enter between the plate layer structures from the side of the plate, which is conducive to the rapid infusion of the resin and can reduce the number of air cavities between the plate layers.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a rotor blade for a wind turbine, more specifically, it relates to a plate for making a wind turbine blade, a structure of a spar cap of the wind turbine blade and a preparation method. Background technique

[0002] Wind turbine blades are usually stacked by plates made of carbon fiber. In order to ensure the structural strength of the blades, curable materials, such as resin, are poured between the plates. In order to ensure the bonding strength between two adjacent panels, the resin is poured between the panels as evenly as possible. However, because the gaps between the plates are small, the resin often cannot be poured evenly, thus leaving air bubbles between the plates and reducing the structural strength of the blade.

[0003] In order to be able to eliminate air bubbles, in the prior art, for example, the Chinese patent with the patent notification number CN200610126234.6 proposes a method for manufacturing continuous l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More