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Manufacturing and forming method of rapid vacuum injection system for blades of wind generating set

A wind turbine and vacuum infusion technology, which is applied to household appliances, other household appliances, household components, etc., can solve the problems of uncontrollable resin glue, long blade perfusion manufacturing cycle, small process tolerance rate, etc.

Active Publication Date: 2021-09-14
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a manufacturing and molding method of a rapid vacuum infusion system for blades of wind power generators, which can effectively solve the problems of long manufacturing cycle of blade infusion, small process tolerance rate, and resin leakage. Problems such as uncontrollable and large fluctuations in the quality of finished products

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  • Manufacturing and forming method of rapid vacuum injection system for blades of wind generating set
  • Manufacturing and forming method of rapid vacuum injection system for blades of wind generating set
  • Manufacturing and forming method of rapid vacuum injection system for blades of wind generating set

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with specific examples.

[0036] The manufacturing and forming method of the rapid vacuum infusion system for wind turbine blades described in this embodiment, the method needs to be equipped with: air-conducting medium 2, spiral air extraction pipe 3, one-way air-permeable membrane 4, sealing rubber strip 5, and release cloth 6, diversion net 7, ohmic tube (tube a, tube b, tube c, tube d, tube e, tube f, tube g and tube h), glue injection port 11 and vacuum bag film 9; specifically include the following steps:

[0037] 1) First, lay the air-guiding medium 2 in the inner cavity of the pre-treated blade mold 1, and make the edges on both sides of the air-guiding medium 2 respectively cover the air inlets 101 on the flanges on both sides of the blade mold 1, The air-guiding function is played by the air-guiding medium 2; wherein, the air-guiding medium 2 can be a combination of one or more of air-guiding...

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Abstract

The invention discloses a manufacturing and forming method of a rapid vacuum injection system for blades of a wind generating set, which comprises the following steps of: laying a gas guide medium, spiral exhaust pipes, a one-way ventilated membrane, demolding cloth and a flow guide net in an inner cavity of a blade mold in sequence, then laying a plurality of ohm pipes at set positions above the flow guide net, placing a glue injection port at a set position on each ohm pipe, covering the upper surfaces of the flow guide net, the ohm pipes and the glue injection ports with a vacuum bag film, then connecting external glue injection pipes with the glue injection ports, connecting an air exhaust port on a blade mold flange with an external vacuum pump, maintaining the pressure, and preheating the mold and a laying layer to a set temperature after qualification, then opening all the glue injection pipes, and injecting resin into the injection system through the glue injection ports; and after injection is completed, heating the mold, and after heating is maintained for a set time, completing curing. The method can effectively solve the problems that an existing blade injection manufacturing period is long, the process tolerance rate is small, resin spreading is uncontrollable, and the quality fluctuation of a finished product is large.

Description

technical field [0001] The invention relates to the technical field of vacuum infusion molding of wind power blade composite materials, in particular to a manufacturing and molding method of a rapid vacuum infusion system for blades of a wind power generating set. Background technique [0002] The general method for vacuum infusion of existing wind turbine blade shells is: adopt the method of pumping air around, and injecting resin in the middle to both sides sequentially. Inadequacies: [0003] 1) The infusion adopts the sequential opening method, which has a long infusion time and low efficiency: as the blade shape becomes larger and larger, the infusion time required is longer and longer, and the operation time and curing time of the matching infusion resin are also extended accordingly , causing the overall production cycle to be too long. [0004] 2) The tolerance rate of the infusion process is small: the general infusion pumping method is the line pumping method in ...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/36B29C70/44B29C70/54B29L31/08
CPCB29C70/342B29C70/36B29C70/443B29C70/54B29L2031/085Y02E10/72Y02P70/50
Inventor 唐鹏飞闫美娟姚中强夏佳秋张亚涛李军向
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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