Wind power blade mold, preparation method of blade mold and mold surface monitoring system

A technology for wind power blades and molds, applied in the field of health monitoring of fiber composite materials, can solve problems such as offline detection, and achieve the effect of easy operation and one-time installation

Pending Publication Date: 2020-08-18
北玻院(滕州)复合材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention can not only fully consider the production process and manufacturing characteristics of the wind power blade mould, but also solve the shortcomings of the existing technology that can only be detected offline. In the actual production process to achieve real-time online monitoring surface accuracy

Method used

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  • Wind power blade mold, preparation method of blade mold and mold surface monitoring system
  • Wind power blade mold, preparation method of blade mold and mold surface monitoring system
  • Wind power blade mold, preparation method of blade mold and mold surface monitoring system

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Embodiment 1

[0044] Such as figure 1 and figure 2 As shown, the present invention provides a wind power blade mold, including: an upper mold 100 and a lower mold 200; figure 2 As shown, the structure of the upper mold 100 includes: an inner structural layer 110, a heating layer 120, and an outer structural layer 130; the shape of the upper mold 100 is adapted to the shape of the upper surface of the wind turbine blade; The structure is the same as that of the upper mold 100; the shape of the lower mold 200 is adapted to the shape of the lower surface of the wind turbine blade; the upper mold 100 and the lower mold 200 are aligned and fastened; preferably, Such as figure 1 As shown, the blade root flange 300 is used for further positioning of the mold state after fastening; it should be noted that the above positioning method is not limited to the use of figure 1 For the blade root flange positioning method shown, applying other positioning methods in the present application according ...

Embodiment 2

[0061] This embodiment further provides a blade mold preparation method on the basis of embodiment 1, the method includes the following steps:

[0062] Step 1: Using the vacuum-assisted infusion process, the resin is poured on the multi-layer structure composed of surface felt, alkali-free cloth and multi-axial multi-layer fabric in order to prepare the inner structural layer of the blade mold; when the surface When the felt layer is composed of multiple surface felts, the connection mode between two adjacent surface felts is lap joint; The connection mode is lap joint; when the multi-axial multi-layer fabric layer is composed of multiple multi-axial multi-layer fabrics, the connection mode between two adjacent multi-axial multi-layer fabrics is lap joint; the blade The number of inner structure layers in the mold is two, and the shapes are adapted to the shapes of the upper and lower sides of the blades respectively, so as to obtain the finished products of the inner structur...

Embodiment 3

[0082] This embodiment further provides a mold profile monitoring system on the basis of the above embodiments, including: a wind power blade mold and a fiber grating demodulator; the wind power blade mold is the wind power blade mold described in Embodiment 1, or A wind power blade mold manufactured according to the method described in Example 2; the fiber grating demodulator is connected to the fiber grating signal of the wind power blade mold through an optical fiber.

[0083] Further, in one of the preferred technical solutions of this embodiment, a sealed bag is provided at the fiber interface between the fiber grating demodulator and the fiber grating. The transmission lines and lead joints of the packaged optical fiber grating sensor are sealed and protected by a sealed bag, which can prevent the optical fiber interface from being polluted.

[0084] As shown in Figure 6, the core working components of the mold surface monitoring system mainly include three parts: the se...

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Abstract

The invention provides an intelligent wind power blade mold, a preparation method of a blade mold, and a mold surface monitoring system. The intelligent wind power blade mold comprises an upper mold and a lower mold; the structure of upper mold comprises an inner structural layer, a heating layer and an outer structural layer; the structure of the lower mold is the same as that of the upper mold;the heating layer comprises a heat conductive grease layer, a copper pipe or a heating wire, and a fiber bragg grating; the inner structural layer is a cured structural layer formed by a vacuum infusion process using resin on a surfacing mat, an alkali-free cloth and a multi-axial multilayer fabric; and the preparation method comprises the following steps of preparation of the inner structural layer of the blade mold; preparation of the heating layer; and preparation of the outer structural layer. The mold surface monitoring system comprises a wind power blade mold and a fiber bragg grating demodulator; and the fiber bragg grating demodulator is connected with the fiber bragg grating of the wind power blade mold through a signal. According to the intelligent wind power blade mold, the related technical problems of how to accurately monitor the internal strain and temperature change of the mold are solved.

Description

technical field [0001] The invention relates to the technical field of health monitoring of fiber composite materials, in particular to a wind power blade mold, a blade mold preparation method and a mold surface monitoring system. Background technique [0002] Wind turbine blades are one of the key core components for wind turbines to convert wind energy into mechanical energy. The quality of blades will directly affect the efficiency and service life of wind turbines, thereby affecting the performance of the entire system. During the operation of the blade, in addition to its own gravity, it will also be affected by various loads such as aerodynamic force and centrifugal force. In order to operate normally, the blade must have sufficiently high dimensional stability, mechanical strength and bending torsional stiffness. The quality of the blade depends on the quality of the blade mold, so high-precision, high-quality mold manufacturing technology must become the most concern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/02B29C33/38B29C33/00
CPCB29C33/00B29C33/02B29C33/3842B29C2033/385
Inventor 黄尚洪张雷达李义全贾玉玺陈忠丽刘晓彬陈万康
Owner 北玻院(滕州)复合材料有限公司
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