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Manufacturing method of sandwich-structure glass steel cabin cover

A technology of a sandwich structure and a manufacturing method, which is applied in the manufacturing field of a sandwich structure glass fiber reinforced plastic cabin cover, can solve the problems of complex construction process, high working strength, insufficient rigidity, etc., and achieves low cost, short construction time and simple manufacturing process. Effect

Inactive Publication Date: 2011-09-21
无锡利保科技发展有限公司
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  • Abstract
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Problems solved by technology

[0003] At present, the wind turbine canopy adopts all-glass steel structure. Under the condition of weight limitation, the thickness design of the nacelle cover is limited. Generally, the thickness of the nacelle cover is about 8mm, which is insufficient in rigidity and easy to deform. Reinforcement ribs are mainly used to increase the rigidity of the shell. , the construction process is complicated and the work intensity is high

Method used

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  • Manufacturing method of sandwich-structure glass steel cabin cover
  • Manufacturing method of sandwich-structure glass steel cabin cover
  • Manufacturing method of sandwich-structure glass steel cabin cover

Examples

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Embodiment Construction

[0020] The present invention will be further explained below in conjunction with the accompanying drawings.

[0021] The invention discloses a manufacturing method of a glass fiber reinforced plastic nacelle cover with a sandwich structure. The main method is to add foam splints to the glass fiber reinforced plastic layer of the nacelle cover shell, so that the nacelle cover shell forms a composite structure of glass steel-foam-glass steel, so that the shell It has enough rigidity to prevent deformation; at the same time, it plays a role of heat insulation, especially in the northern region, and there is no need to take additional insulation measures for the cabin cover.

[0022] In order to ensure sufficient bonding strength between FRP and foam board, so that the two materials are closely combined, this technology adopts vacuum introduction process for construction, including the following steps:

[0023] (1) lay glass fiber, foam board and glass fiber on the mould;

[0024...

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Abstract

The invention discloses a manufacturing method of a sandwich-structure glass steel cabin cover. The method comprises the following steps: paving glass fibers, a foam board and glass fibers on a mold; paving a demolding cloth layer on the surface of the glass fibers; paving a diversion net layer on the demolding cloth; paving a diversion pipe on the diversion net; paving a vacuum bag on the diversion pipe; starting a vacuum system which exhausts air in the mold cavity so as to form a negative pressure with vacuum degree of 90% in the mold cavity; introducing special resin into vacuum by means of the negative pressure, and pressing the resin into the fiber layer through the pre-paved diversion pipe, so that the entire mold is fully filled with the resin soaked and reinforced material; curing the cabin cover; removing the vacuum bag; and demolding the cabin cover from the mold. The method disclosed by the invention has the advantages of simple manufacturing process, low cost and short construction time, improves the pressure resistance and toughness of the cabin cover, enhances the thermal insulation performance, and prolongs the service life, thereby achieving high social and economic benefits.

Description

technical field [0001] The invention relates to a protective device for a wind power generator, in particular to a method for manufacturing a glass fiber reinforced plastic nacelle cover with a sandwich structure. Background technique [0002] As the protective cover of the wind turbine, the FRP nacelle has been eroded by natural wind, rain, snow and sunlight for a long time. , and it is necessary to strictly control the weight of the nacelle cover. [0003] At present, the wind turbine canopy adopts all-glass steel structure. Under the condition of weight limitation, the thickness design of the nacelle cover is limited. Generally, the thickness of the nacelle cover is about 8mm, which is insufficient in rigidity and easy to deform. Reinforcement ribs are mainly used to increase the rigidity of the shell. , The construction process is complex and the work intensity is high. Contents of the invention [0004] Purpose of the invention: Aiming at the deficiencies of the pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/44B29L9/00
Inventor 吕国君
Owner 无锡利保科技发展有限公司
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