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Composite protection film of wind power blade and detachable wind power blade protection device

A technology for wind power blades and protection devices, applied in the field of wind power devices, can solve the problems of blade aerodynamic performance decline, damage, low overall strength, etc., and achieve the effects of saving maintenance costs, prolonging service life, and reducing maintenance costs.

Pending Publication Date: 2021-06-22
青岛思恩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the thin thickness of the painted paint, poor resilience, and low overall strength, the life cycle of the repaired paint protective layer is short, and it may be damaged again in a short period of time under constant impact
As the degree of damage increases, the aerodynamic performance of the blade decreases, and painting operations still need to be carried out again. The maintenance cost remains high, and it is impossible to achieve once and for all

Method used

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  • Composite protection film of wind power blade and detachable wind power blade protection device
  • Composite protection film of wind power blade and detachable wind power blade protection device
  • Composite protection film of wind power blade and detachable wind power blade protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 1 As shown, a grid-shaped detachable wind turbine blade protection device related to this embodiment includes a first fixing rib 1, a second fixing rib 2, a grid plate 3 and a skin, and several A first fixed rib 1, a number of second fixed ribs 2 are fixed along the direction parallel to the length of the blade, the first fixed rib and the second fixed rib are handed over to form a mesh protection bracket containing several grids that adapt to the shape of the blade , the grid plate 3 is fixed in the grid, and is detachably connected with the first fixed rib 1 and the second fixed rib 2 around the grid, and the skin is fixedly attached to the grid plate 3 to protect the entire wind turbine blade Device wrapping.

[0029] Further, at the intersection of the first fixed rib 1 and the second fixed rib 2, strong connection methods such as welding and screw connection are used, and the connecting angle material is fixedly arranged at the joint between the first ...

Embodiment 2

[0032] The protection device for wind power blades described in Embodiment 1 further includes a composite protective film, and the composite protection film is bonded to the protection device for wind power blades. The bonding process is divided into two situations. One is to bond the composite protective film to the wind power blade before the blade leaves the factory; the other is to use vacuum infusion to allow the adhesive to flow evenly between the blade and the protective film. This method can be used not only before the blade leaves the factory, but also during outdoor maintenance.

Embodiment 3

[0035] The protective film for wind turbine blades in this embodiment includes a support layer and an elastic layer. The support layer is made of a material with a certain strength. The elastic layer includes but is not limited to one of a thermoplastic elastic layer, a rubber layer, and a foam layer.

[0036]Further, the above-mentioned wind power blade protective film is directly prepared by a one-step method, specifically: a preparation method of a wind power blade protective film, which specifically includes the following steps:

[0037] (1) Mix 80-100 parts of the main material of the support layer, 0.5-10 parts of antioxidant, 1-8 parts of disentangling agent, 0.5-5 parts of coloring agent, 2-15 parts of lubricant and 0-5 parts of anti-aging agent Pour it into the mixer and stir for 5-60 minutes, then transport it to the silo through the feeder, transport it to the die head for extrusion through the twin-screw extruder, cut it into pellets with a water ring cutter, and dr...

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Abstract

The invention discloses a composite protection film of a wind power blade and a detachable wind power blade protection device. The composite protection film of the wind power blade comprises a supporting layer and an elastic layer, wherein the supporting layer is made of a material with certain strength, and the elastic layer comprises one of a thermoplastic elastic layer, a rubber layer and a foaming layer. The composite film, first fixing ribs, second fixing ribs, grid plates and a skin jointly form the detachable wind power blade protection device. Raw material particles of the elastic layer and raw material particles of the supporting layer are extruded together through a special mold head, so that the composite protection film is obtained. The bonding force between the two layers of the composite film is high, the two layers cooperate with each other to play a role, and the wind power blade is effectively protected.

Description

Technical field: [0001] The invention belongs to the technical field of wind power devices, and in particular relates to a wind power blade protective film and a detachable wind power blade protection device. Background technique: [0002] The application of environmentally friendly new energy is becoming more and more widespread. Wind power has become another important source of power after thermal power, nuclear power and hydropower, and is the top priority for the development of the power industry. As the core component of wind power equipment, wind turbine blades play a pivotal role in practical applications. Wind turbine blades, especially the leading edge of the blades, are constantly impacted by sand, raindrops, hail and other objects during use. Since the linear velocity of the tip of the blade can reach up to 100 m / s, the impact force of the high-speed impacting object on the blade is extremely great, so that the wind power blades with a design life of several deca...

Claims

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Application Information

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IPC IPC(8): B29C65/48B29C70/52
CPCB29D7/01B29C69/001
Inventor 吴剑铭王旭郑德娟李奕霖
Owner 青岛思恩科技有限公司
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