CN210062237U

CN210062237U - Biaxial glass fiber composite felt

Info

Publication number: CN210062237U
Application number: CN201920406116.3U
Authority: CN
Inventors: 罗富强; 吴世宝
Original assignee: Nanjing Qiangsheng Glass Fiber Composite Co Ltd
Current assignee: Nanjing Qiangsheng Glass Fiber Composite Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-02-14
Anticipated expiration: 2029-03-28

Abstract

The utility model discloses a biaxial glass fiber composite felt, which comprises a composite felt body and a winding drum, the utility model adopts a multilayer design, a plurality of binding belts which are evenly distributed are connected between each layer body, and the joints of each layer body are all filled with binding agents, thereby further improving the strength of the composite felt, leading each layer body to be tightly connected and not to be easy to fall off, simultaneously, a plurality of honeycomb holes are fixedly arranged inside a first buffer layer and a second buffer layer, being capable of buffering the force born by the composite felt body, a compression resistant layer made of PC material has good hardness, being capable of preventing the compression resistant layer from being broken when bearing pressure is overlarge, the design of the first reinforcing rib layer and the second reinforcing rib layer improves the overall rigidity, prolonging the service life of the composite felt, in addition, a first dust-proof layer and a second dust-proof layer are arranged on the composite felt body, being capable of leading the surface of the composite felt body to be smooth, preventing dust accumulation, having very wide market prospect and being beneficial to popularization and promotion.

Description

Biaxial glass fiber composite felt

Technical Field

The utility model relates to a compound felt technical field, in particular to compound felt of biaxial glass fiber.

Background

Along with the development of social economy, the demand of people on energy is increasing day by day, and traditional energy sources such as coal, petroleum, natural gas and the like stored in the earth are deficient day by day. Under the huge energy pressure, the development of inexhaustible, clean and pollution-free renewable new energy has become a global consensus. Wind energy has the characteristics of reproducibility, inexhaustibility, no pollution, high comprehensive social benefits and the like, and is gradually becoming an important component of sustainable development strategies of many countries. Currently, the global wind power generation industry is growing at a dramatic rate, with an average annual growth rate of 28% over the past 10 years, and an annual investment in this area of 180 billion euros. The prospect of wind power generation becomes wider and wider, the market of wind power generation is rapidly increased in the future energy field, and the future wind power industry is developed towards the trends of offshore wind power, large-scale windmill, increasingly perfect manufacturing technology of wind power generation equipment and the like. China has a large population and is deficient in resources, and the utilization of wind power resources is a great strategic problem related to future development of China. Under the guidance of the national policy of actively developing renewable energy sources, in recent years, the wind power generation industry of China is developed extremely rapidly. In a wind power generation system, a fan blade is the most critical component for converting wind energy, and determines the performance and price of a unit. The good design, reliable quality and excellent performance of the blades are the determining factors for ensuring the normal and stable operation of the unit, and are the basis for obtaining higher wind energy utilization coefficient and greater economic benefit of the wind driven generator. In the aspect of windmill blade preparation in China, except that foreign enterprises manufacture blades in Huaqian factories, the technical sources of the domestic blade manufacturing enterprises mainly depend on technical introduction, including modes of purchasing foreign blade companies, purchasing foreign blade designs, purchasing foreign production licenses and the like; the technology of independent research and development of enterprises in China is also available, but the overall research and development and preparation technology level is not mature enough, and the high-level windmill blade design and preparation technology with independent intellectual property rights in China is urgently needed to be developed. The windmill blade is required to bear strong alternating load when running at high altitude, which not only requires that the material has enough tensile and bending resistance, but also has enough rigidity, toughness, fatigue resistance, corrosion resistance, high temperature resistance and the like. The structure and the performance of the glass fiber felt have great influence on various performance indexes of the blade product. For example, Spanish, Gomeisa, an offshore blade type requires that the compressive strength of the biaxial fiber mat be over 140 MPa, and Siemens requires that the glass fibers used therein have good fatigue resistance. Thus, existing biaxial fiber mats have been difficult to meet customer needs in terms of performance, but no suitable product has been available on the market. The market demand for new high-performance fiber mats is increasingly strong, and the high-strength, high-modulus and light-weight glass fiber composite mat becomes a development hotspot of the wind power industry.

The utility model with the Chinese patent application number of 201720856687.84 discloses a biaxial glass fiber composite felt, which comprises a chopped strand mat layer, wherein the lower part of the chopped strand mat layer is provided with a weaving base cloth layer, the weaving base cloth layer comprises a first twisting weaving base cloth layer and a second twisting weaving base cloth layer, a binding belt fixes the chopped strand mat layer, the first twisting weaving base cloth layer and the second twisting weaving base cloth layer together, the first winched base fabric layer comprises a plurality of first connecting sheets, the fixing sheets I and II are wound around the first connecting sheets in a staggered manner, the second twisted base cloth layer comprises a plurality of second connecting sheets, the fixing sheets III and IV are wound around the second connecting sheets in a staggered manner, the included angle between the first connecting sheets and the second connecting sheets is 58-62 degrees, although the shearing resistance and the interlayer separation resistance of the glass fiber composite felt are improved, however, the overall strength and dust resistance have not yet met the higher demands, and it is therefore necessary to design a biaxial glass fiber composite mat to solve these problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a compound felt of biaxial glass fiber can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a biaxial glass fiber composite felt comprises a composite felt body and a winding drum, wherein the composite felt body is wound on the winding drum, a chopped strand mat layer is fixedly arranged in the middle of the composite felt body and is formed by sequentially and tightly weaving a plurality of transverse chopped glass fibers and longitudinal chopped glass fibers, a first twisted base cloth layer is fixedly arranged above the chopped strand mat layer, a first pressure-resistant layer is fixedly arranged above the first twisted base cloth layer, a first buffer layer is fixedly arranged above the first pressure-resistant layer, a first reinforcing rib layer is fixedly arranged above the first buffer layer, a first dust-proof layer is fixedly arranged above the first reinforcing rib layer, a second twisted base cloth layer is fixedly arranged below the chopped strand mat layer, a second pressure-resistant layer is fixedly arranged below the second twisted base cloth layer, and a second buffer layer is fixedly arranged below the second pressure-resistant layer, and a second reinforcing rib layer is fixedly arranged below the second buffer layer, and a second dust-proof layer is fixedly arranged below the second reinforcing rib layer.

Preferably, each layer of the composite felt body is connected through a plurality of binding belts which are uniformly distributed.

Preferably, the joint of each layer of the composite felt body is filled with a binder.

Preferably, a plurality of honeycomb holes are fixedly arranged in the first buffer layer and the second buffer layer.

Preferably, the first pressure resistant layer and the second pressure resistant layer are made of PC materials.

Preferably, the binding band is made of polyester yarn.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model adopts a multi-layer design, a plurality of binding belts which are evenly distributed are connected among all layers, and the joint of each layer is filled with the binder, so that the strength of the composite felt is further improved, each layer is tightly connected and is not easy to fall off, meanwhile, a plurality of honeycomb holes are fixedly arranged in the first buffer layer and the second buffer layer, the force borne by the composite felt body can be buffered, the compression-resistant layer made of PC material has good hardness, the anti-pressure layer can be prevented from being broken when bearing excessive pressure, the integral rigidity is improved by the design of the first reinforcing rib layer and the second reinforcing rib layer, the service life of the composite felt is prolonged, in addition, the first dust-proof layer and the second dust-proof layer are arranged on the composite felt body, the surface of the composite felt body can be smooth, dust accumulation can be prevented, the composite felt has a very wide market prospect, and popularization and promotion are facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of a biaxial glass fiber composite felt of the present invention;

FIG. 2 is a schematic cross-sectional view of a biaxial glass fiber composite mat according to the present invention;

FIG. 3 is a schematic view of a honeycomb hole of a biaxial fiberglass composite mat according to the present invention;

FIG. 4 is a schematic structural view of a chopped strand mat of a biaxial glass fiber composite mat according to the present invention;

in the figure: 1. a composite felt body; 2. a reel; 3. a chopped strand mat; 4. a first twill-woven base fabric layer; 5. a first pressure resistant layer; 6. a first buffer layer; 7. a first reinforcing rib layer; 8. a first dust-proof layer; 9. a binding band; 10. a second twirling base cloth layer; 11. a second compressive layer; 12. a second buffer layer; 13. a second reinforcing rib layer; 14. a second dust-proof layer; 15. honeycomb holes; 16. transverse chopped glass fibers; 17. and (3) longitudinally chopping the glass fibers.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a biaxial glass fiber composite mat comprises a composite mat body 1 and a winding drum 2, wherein the composite mat body 1 is wound on the winding drum 2, a chopped strand mat layer 3 is fixedly arranged in the middle of the composite mat body 1, the chopped strand mat layer 3 is formed by sequentially and tightly weaving a plurality of transverse chopped glass fibers 16 and longitudinal chopped glass fibers 17, a first twisted base fabric layer 4 is fixedly arranged above the chopped strand mat layer 3, a first pressure-resistant layer 5 is fixedly arranged above the first twisted base fabric layer 4, a first buffer layer 6 is fixedly arranged above the first pressure-resistant layer 5, a first reinforcing rib layer 7 is fixedly arranged above the first buffer layer 6, a first dust-proof layer 8 is fixedly arranged above the first reinforcing rib layer 7, a second twisted base fabric layer 10 is fixedly arranged below the chopped strand mat layer 3, the fixed second resistance to compression layer 11 that is provided with in below of second hank weaving base cloth layer 10, the fixed second buffer layer 12 that is provided with in below of second resistance to compression layer 11, the fixed second strengthening muscle layer 13 that is provided with in below of second buffer layer 12, the fixed second dust layer 14 that is provided with in below of second strengthening muscle layer 13.

In this embodiment, preferably, the layers of the composite felt body 1 are connected by a plurality of binding bands 9 distributed uniformly.

In this embodiment, preferably, the joint of each layer of the composite felt body 1 is filled with an adhesive.

In this embodiment, preferably, a plurality of honeycomb holes 15 are fixedly disposed inside each of the first buffer layer 6 and the second buffer layer 12.

In this embodiment, the first pressure resistant layer 5 and the second pressure resistant layer 11 are preferably made of PC material.

In this embodiment, preferably, the tying band 9 is made of polyester yarn.

It should be noted that, the utility model relates to a biaxial glass fiber composite felt, when using the biaxial glass fiber composite felt, the utility model adopts multilayer design, a plurality of binding bands 9 which are evenly distributed are connected between each layer body, and the joints of each layer body are filled with binding agent, further improving the strength of the composite felt, leading each layer body to be tightly connected and not easy to fall off, simultaneously, a plurality of honeycomb holes 15 are fixedly arranged inside the first buffer layer 6 and the second buffer layer 12, which can buffer the force applied to the composite felt body 1, the compression resistant layer made of PC material has good hardness, which can prevent the compression resistant layer from being broken when bearing pressure is too large, the design of the first reinforcing rib layer 7 and the second reinforcing rib layer 13 improves the whole rigidity, the service life of the composite felt is prolonged, in addition, the composite felt body 1 is provided with the first dust resistant layer 8 and the second dust resistant layer 14, the surface of the composite felt body 1 can be smooth, dust accumulation can be prevented, the composite felt has a very wide market prospect, and popularization and promotion are facilitated.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A biaxial glass fiber composite felt comprises a composite felt body (1) and a winding drum (2), and is characterized in that: the composite felt is characterized in that the composite felt body (1) is wound on a winding drum (2), a chopped strand mat layer (3) is fixedly arranged in the middle of the composite felt body (1), the chopped strand mat layer (3) is formed by sequentially and tightly weaving a plurality of transverse chopped glass fibers (16) and longitudinal chopped glass fibers (17), a first twisted base fabric layer (4) is fixedly arranged above the chopped strand mat layer (3), a first pressure-resistant layer (5) is fixedly arranged above the first twisted base fabric layer (4), a first buffer layer (6) is fixedly arranged above the first pressure-resistant layer (5), a first reinforcing rib layer (7) is fixedly arranged above the first buffer layer (6), a first dust-proof layer (8) is fixedly arranged above the first reinforcing rib layer (7), a second twisted base fabric layer (10) is fixedly arranged below the chopped strand mat layer (3), the fixed second resist compression layer (11) that is provided with in below of second hank weaving base cloth layer (10), the fixed second buffer layer (12) that is provided with in below of second resist compression layer (11), the fixed second strengthening rib layer (13) that is provided with in below of second buffer layer (12), the fixed second dust layer (14) that is provided with in below of second strengthening rib layer (13).

2. The biaxial glass fiber composite mat as defined in claim 1, wherein: the layers of the composite felt body (1) are connected through a plurality of binding belts (9) which are uniformly distributed.

3. The biaxial glass fiber composite mat as defined in claim 1, wherein: the joint of each layer of the composite felt body (1) is filled with a bonding agent.

4. The biaxial glass fiber composite mat as defined in claim 1, wherein: the first buffer layer (6) and the second buffer layer (12) are both fixedly provided with a plurality of honeycomb holes (15).

5. The biaxial glass fiber composite mat as defined in claim 1, wherein: the first pressure resistant layer (5) and the second pressure resistant layer (11) are made of PC materials.

6. The biaxial glass fiber composite mat as defined in claim 2, wherein: the binding belt (9) is made of polyester yarns.