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Evaluation method for permeability of resin or fabric used for wind power blades

A technology for wind power blades and evaluation methods, which is applied in applications, household appliances, household components, etc., can solve the problems of high cost, need more personnel, and take a long time, and achieve the effect of saving raw material costs.

Inactive Publication Date: 2020-03-27
东方电气(天津)风电叶片工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention aims to propose a method for evaluating the permeability of resin or fabric used in wind power blades, so as to solve the problems of high cost of materials, many personnel required, long time consumption and waste of cost in the existing process

Method used

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  • Evaluation method for permeability of resin or fabric used for wind power blades
  • Evaluation method for permeability of resin or fabric used for wind power blades
  • Evaluation method for permeability of resin or fabric used for wind power blades

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Embodiment Construction

[0038] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be interpreted...

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Abstract

The invention provides an evaluation method for the permeability of resin or fabric used for wind power blades. The method includes the steps that a sealing adhesive strip adheres to the position, larger than a prefabricated body, of the periphery of a mold, and the center position of a sealed area is marked; a first flow guiding net is laid at the center position of the sealed area, a second flowguiding net and an isolating film are laid above the first flow guiding net, and the isolating film is close to one side of an adhesive injecting port; the prefabricated body in drying treatment is spread onto the second flow guiding net and the isolating film; a spiral pipe is laid on the side, close to the adhesive injecting port, of the first flow guiding net, and is connected to an adhesive injecting pipe, a gas extracting pipe is installed at the center position of the upper surface of the prefabricated body, and the other end of the gas extracting pipe is connected to a vacuum pump; andthe first flow guiding net, the second flow guiding net, the isolating film, the spiral pipe and the prefabricated body are sealed, the vacuum pump is opened, and relevant data are acquired. According to the evaluation method for the permeability of the resin or fabric used for the wind power blades, a powerful basis is provided for determining pouring process parameters, and the raw material cost and the time and human cost are greatly saved.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a method for evaluating the permeability of resin or fabric used in wind power blades. Background technique [0002] The main structure of wind turbine blades is FRP, and its main raw materials include glass fiber fabric and epoxy resin, both of which have a variety of specifications, so there may be multiple combinations of the two in the production of different blades. In actual production, there is a switch from one combination form to another, or a new combination of glass fiber fabric and epoxy resin. The difference in the combination form will have a negative impact on the product quality of wind turbine blades. unpredictable effects. Each combination and matching form may require a matching infusion process to ensure product quality. [0003] When it is necessary to switch from one combination form to another, or to use a new combination of glas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/36B29L31/08
CPCB29C70/36B29L2031/085
Inventor 马腾谢理国别春华江一杭
Owner 东方电气(天津)风电叶片工程有限公司
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