CN211165624U

CN211165624U - High-strength plate for preparing 3MW power generation fan cabin cover

Info

Publication number: CN211165624U
Application number: CN201921539882.3U
Authority: CN
Inventors: 白福岗; 白福东
Original assignee: Jiangsu Waner Environmental Protection Technology Co ltd
Current assignee: Jiangsu Waner Environmental Protection Technology Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-08-04
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a high-strength plate for preparing a 3MW power generation fan cabin cover, which mainly comprises a plate body; the plate body is sequentially provided with a protective layer, a sandwich layer and a reinforcing layer from top to bottom; the sandwich layer comprises an upper glass fiber layer, an upper reinforcing fiber layer, a core plate layer, a lower reinforcing fiber layer and a lower glass fiber layer from top to bottom; the upper reinforced fiber layer is made of unidirectional carbon fiber cloth, the lower reinforced fiber layer is made of plain bidirectional carbon fiber cloth, and the plate is scientific in structural design, high in overall strength and interlayer shear strength and light in self weight.

Description

High-strength plate for preparing 3MW power generation fan cabin cover

Technical Field

The utility model relates to a 3MW wind power generation equipment field especially relates to a preparation 3MW high strength panel for electricity generation fan cabin cover.

Background

The wind turbine generator cabin cover is a part covering the outside of the wind turbine generator, and protects internal equipment from being invaded by external environment, such as wind, sand, rainwater, hail, ultraviolet radiation and the like, so that normal operation of the wind turbine generator is ensured. In the prior art, the plate material for manufacturing the cabin cover is usually a glass fiber reinforced plastic material, and although the glass fiber reinforced plastic material has many excellent properties such as light weight, high strength, chemical corrosion resistance, electrical insulation, microwave transmission and the like, and the forming method is simple, the disadvantages thereof are also clear, and the method is specifically as follows:

the elastic modulus is low: the modulus of elasticity of glass fiber reinforced plastic is greater than that of wood, but much less than that of steel; aging is easy to occur, and performance is easy to reduce under the action of ultraviolet rays, wind, sand, rain, snow, chemical media, mechanical stress and the like, so that the product structure always feels insufficient rigidity and is easy to deform; in order to overcome the defects, the company applies a patent CN208702623U for a high-strength wind turbine generator cabin cover, wherein a reticular carbon fiber layer is laid in a high-temperature resistant layer, the carbon fiber layer is 'soft outside and rigid inside', is lighter than metal aluminum in mass, but has higher strength than steel, has the characteristics of corrosion resistance and high modulus, not only has the inherent intrinsic characteristic of a carbon material, but also has the soft processability of textile fibers, and makes up the low elastic modulus and brittleness of glass fiber reinforced plastic.

Compared with a 2MW cabin cover, the 3MW cabin cover is longer in whole length and larger in bearing weight, so that the 3MW cabin cover needs to be further improved, and the performance requirements of the cabin cover on rigidity strength, corrosion resistance and ultraviolet resistance can be better met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's shortcoming, providing a preparation 3MW high strength panel for power generation fan cabin cover that structural design science, bulk strength and interlaminar shear strength are high, the dead weight is light.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that:

a high-strength plate for preparing a 3MW power generation fan cabin cover mainly comprises a plate body; the plate body is sequentially provided with a protective layer, a sandwich layer and a reinforcing layer from top to bottom; the sandwich layer comprises an upper glass fiber layer, an upper reinforcing fiber layer, a core plate layer, a lower reinforcing fiber layer and a lower glass fiber layer from top to bottom; the upper reinforced fiber layer is unidirectional carbon fiber cloth, and the lower reinforced fiber layer is plain bidirectional carbon fiber cloth.

Preferably, the core sheet layer is a honeycomb carbon fiber sheet layer.

Preferably, the core plate layer is a carbon fiber plate layer having a regular triangular corrugated shape with an inscribed circle in a cross section.

Preferably, the protective layer is a polytetrafluoroethylene layer, and an ultraviolet-resistant layer is further arranged on the outer wall of the protective layer.

Preferably, the reinforcing layer is made of ultra-high molecular weight polyethylene, and the inner wall of the reinforcing layer is further provided with a wear-resistant layer and a flame-retardant layer.

Preferably, the thickness of the core layer is 0.5 to 1 mm.

The utility model has the advantages that:

firstly, the method comprises the following steps: the upper reinforced fiber layer is one-way carbon fiber cloth, the lower reinforced fiber layer is plain two-way carbon fiber cloth, the one-way carbon fiber cloth and the two-way carbon fiber cloth are both reinforcing layers, the one-way carbon fiber cloth is used as an auxiliary reinforcing layer, and the inner layer of the plate body is in contact with equipment in the engine room, so that the two-way carbon fiber cloth is used as a main reinforcing layer, the core plate layer can be protected, and the overall strength of the plate and the interlayer shear strength can be improved;

secondly, the method comprises the following steps: the carbon fiber cloth layer is light, thin, high in strength and ageing-resistant, and the carbon fiber resin has excellent impregnability and is easy to remove bubbles;

thirdly, the method comprises the following steps: the core plate layer is a honeycomb-shaped carbon fiber plate layer or a regular-triangular corrugated carbon fiber plate layer with an internally-connected circle in the cross section, and the core plate layers of the two structures have high structural stability and strength and light dead weight;

fourthly: the reinforced layer is made of ultra-high molecular weight polyethylene, can bear the ultralow temperature of-190 ℃, is suitable for extremely cold regions, has the tensile strength of 3-3.5 GPa and the tensile elastic modulus of 100-125 GPa, and further improves the strength of the plate;

fifth, the method comprises the following steps: the protective layer outer wall still sets up anti ultraviolet layer, and the back up coat inner wall still sets up wearing layer and fire-retardant layer, carries into the ultraviolet resistance nature, the wearability etc. of panel.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of a carbon fiber plate with a regular triangular corrugated structure having an inscribed circle in its cross section. In the figure: 1 is a protective layer, 2 is a sandwich layer, 2.1 is an upper glass fiber layer, 2.2 is an upper reinforcing fiber layer, 2.3 is a core layer, 2.4 is a lower reinforcing fiber layer, 2.5 is a lower glass fiber layer, 3 is a reinforcement layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

A high-strength plate for preparing a 3MW power generation fan cabin cover mainly comprises a plate body; the plate body is sequentially provided with a protective layer 1, a sandwich layer 2 and a reinforcing layer 3 from top to bottom; the sandwich layer 2 comprises an upper glass fiber layer 2.1, an upper reinforcing fiber layer 2.2, a core plate layer 2.3, a lower reinforcing fiber layer 2.4 and a lower glass fiber layer 2.5 from top to bottom; the upper reinforced fiber layer 2.2 is unidirectional carbon fiber cloth, the lower reinforced fiber layer 2.4 is plain weave bidirectional carbon fiber cloth, and when the concrete implementation is carried out, the upper reinforced fiber layer 2.2 and the lower reinforced fiber layer 2.4 can be provided with multiple layers according to actual requirements.

Preferably, the core sheet layer 2.4 is a honeycomb carbon fiber sheet layer.

Preferably, the core sheet layer 2.4 is a carbon fiber sheet layer having a regular triangular corrugated shape with an inscribed circle in its cross section.

Preferably, the protective layer 1 is a polytetrafluoroethylene layer, and an ultraviolet-resistant layer is further arranged on the outer wall of the protective layer 1.

Preferably, the reinforcing layer 3 is made of ultra-high molecular weight polyethylene, and the inner wall of the reinforcing layer is further provided with a wear-resistant layer and a flame-retardant layer.

Preferably, the thickness of the core layer 2.3 is 0.5 to 1 mm.

The upper reinforced fiber layer 2.2 is unidirectional carbon fiber cloth, the lower reinforced fiber layer 2.4 is plain bidirectional carbon fiber cloth, the unidirectional carbon fiber cloth and the bidirectional carbon fiber cloth are both reinforcing layers, the unidirectional carbon fiber cloth is used as an auxiliary reinforcing layer, and the inner layer of the plate body is in contact with equipment in the engine room, so that the bidirectional carbon fiber cloth is used as a main reinforcing layer, the core plate layer 2.3 can be protected, the integral strength of the plate can be improved, and the interlayer shear strength can be improved; the carbon fiber cloth layer is light, thin, high in strength and ageing-resistant, and the carbon fiber resin has excellent impregnability and is easy to remove bubbles; the resin suitable for vacuum introduction, such as shrinkage polyester resin, vinyl resin or epoxy resin, is used for injection molding, the viscosity of a resin system is generally 0.15-0.8 Pa.S, so that the resin can be completely impregnated into the upper reinforcing fiber layer 2.2 and the lower reinforcing fiber layer 2.4 only under the action of vacuum force, and the plate with stable structure, high strength, corrosion resistance and high interlayer shear strength is formed.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A high-strength plate for preparing a 3MW power generation fan cabin cover mainly comprises a plate body; the method is characterized in that: the plate body is sequentially provided with a protective layer, a sandwich layer and a reinforcing layer from top to bottom; the sandwich layer comprises an upper glass fiber layer, an upper reinforcing fiber layer, a core plate layer, a lower reinforcing fiber layer and a lower glass fiber layer from top to bottom; the upper reinforced fiber layer is unidirectional carbon fiber cloth, and the lower reinforced fiber layer is plain bidirectional carbon fiber cloth.

2. The high-strength plate for manufacturing the cabin cover of the 3MW electric generating fan, according to claim 1, is characterized in that: the core plate layer is a honeycomb-shaped carbon fiber plate layer.

3. The high-strength plate for manufacturing the cabin cover of the 3MW electric generating fan, according to claim 1, is characterized in that: the core plate layer is a regular-triangular corrugated carbon fiber plate layer with an internally-connected circle in the cross section.

4. The high-strength plate for manufacturing the cabin cover of the 3MW electric generating fan, according to claim 1, is characterized in that: the protective layer is a polytetrafluoroethylene layer, and an ultraviolet-resistant layer is further arranged on the outer wall of the protective layer.

5. The high-strength plate for manufacturing the cabin cover of the 3MW electric generating fan, according to claim 1, is characterized in that: the reinforced layer is made of ultra-high molecular weight polyethylene, and the inner wall of the reinforced layer is also provided with a wear-resistant layer and a flame-retardant layer.

6. The high-strength plate for manufacturing the nacelle cover of the 3MW electric generating fan as claimed in claim 1, 2 or 3, wherein: the thickness of the core plate layer is 0.5-1 mm.