Glass fiber high-temperature needled composite felt structure

Abstract

The utility model relates to the technical field of composite felt structures, and discloses a glass fiber high-temperature needling composite felt structure which comprises a nylon fiber composite layer, a ceramic fiber composite layer is fixed on the nylon fiber composite layer in a pressing and bonding mode, and one side, away from the nylon fiber composite layer, of the ceramic fiber composite layer is fixedly connected with an inelastic supporting line. The high-temperature glass fiber mixed felt is fixed to the side, away from the ceramic fiber composite layer, of the inelastic supporting line, when the high-temperature glass fiber mixed felt is used, the inelastic supporting line can support the composite felt, deformation of the composite felt caused by impact of airflow or water flow is avoided, and therefore the situation that the overall thickness is inconsistent due to deformation is avoided, the service life of the high-temperature glass fiber mixed felt is prolonged, and the service life of the high-temperature glass fiber mixed felt is prolonged. The glass fiber high-temperature needled composite felt solves the problem that an existing glass fiber high-temperature needled composite felt structure is poor in self-supporting force and prone to deformation in the using process, the filtering effect of the glass fiber high-temperature needled composite felt in the using process is guaranteed, and the service life of the glass fiber high-temperature needled composite felt is prolonged.

Description

Technical Field

[0001] This utility model application relates to the field of composite felt structure technology, specifically a glass fiber high-temperature needle-punched composite felt structure. Background Technology

[0002] Needle-punched composite felt is a filter material made of glass fiber and high-temperature resistant chemical fiber through a composite needle-punching process. The fiber layers are repeatedly penetrated by mechanical needle-punching, causing the fibers to entangle with each other and forming a non-woven fabric with certain strength and structural stability. It has good air permeability, flexibility and durability, and is widely used in filter materials, heat insulation materials, absorbent materials, and industrial, agricultural and construction fields.

[0003] When existing needle-punched composite felts are used as filter materials, the composite felt itself has poor tensile strength. During the filtration process, it is easily deformed by the thrust of water flow or air passing through, which leads to inconsistent overall filtration capacity of the composite felt and affects the filtration effect. Summary of the Invention

[0004] To address the problem that existing high-temperature needle-punched composite felt structures made of fiberglass have poor self-support and are prone to deformation during use, this invention provides a high-temperature needle-punched composite felt structure of fiberglass to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-temperature fiberglass needle-punched composite felt structure includes a nylon fiber composite layer, a ceramic fiber composite layer pressed and bonded to the nylon fiber composite layer, a non-elastic support line fixedly connected to the side of the ceramic fiber composite layer away from the nylon fiber composite layer, a high-temperature fiberglass hybrid felt fixed to the side of the non-elastic support line away from the ceramic fiber composite layer, an activated carbon fiber composite layer fixed to the side of the high-temperature fiberglass hybrid felt away from the non-elastic support line, and a polyester fiber composite layer fixed to the side of the activated carbon fiber composite layer away from the high-temperature fiberglass hybrid felt.

[0007] Furthermore, the thickness of the nylon fiber composite layer is less than the thickness of the ceramic fiber composite layer, and the thickness of the non-elastic support wire is equal to the thickness of the nylon fiber composite layer.

[0008] Furthermore, the non-elastic support lines are arranged in a mesh pattern with several X-shaped crosses, forming a grid between adjacent non-elastic support lines for water or air to pass through.

[0009] Furthermore, the thickness of the high-temperature glass fiber hybrid felt is greater than the thickness of the ceramic fiber composite layer, the ceramic fiber composite layer and the high-temperature glass fiber hybrid felt are fixedly connected by needle punching, and the non-elastic support wire is sandwiched between the ceramic fiber composite layer and the high-temperature glass fiber hybrid felt.

[0010] Furthermore, the thickness of the activated carbon fiber composite layer is equal to the thickness of the ceramic fiber composite layer.

[0011] Furthermore, the thickness of the polyester fiber composite layer is equal to the thickness of the activated carbon fiber composite layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by using an inner non-elastic support line, the composite felt can be supported during use, preventing deformation of the composite felt under the impact of airflow or water flow. This avoids inconsistent overall thickness caused by deformation, solves the problem that the existing glass fiber high-temperature needle-punched composite felt structure has poor self-support and is prone to deformation during use, and ensures the filtration effect of the glass fiber high-temperature needle-punched composite felt during use, as well as the service life of the composite felt.

[0014] 2. In this utility model, the wear resistance and strength of the nylon fiber composite layer 1 and the polyester fiber composite layer 6 enable the composite felt to have sufficient strength and wear resistance. The ceramic fiber composite layer 2 and the activated carbon fiber composite layer 5 work together to effectively filter out impurities and odors in the airflow or water flow, further increasing the filtration performance of the composite felt. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a needle-punched composite felt according to an embodiment of this application;

[0017] Figure 2 yes Figure 1 A schematic cross-sectional view of the three-dimensional structure of the needle-punched composite felt in the embodiment shown;

[0018] Figure 3 yes Figure 1 A schematic cross-sectional view of a portion of the needle-punched composite felt in the illustrated embodiment.

[0019] The meanings of the labels in the figure are as follows: 1. Nylon fiber composite layer; 2. Ceramic fiber composite layer; 3. Non-elastic support line; 4. High temperature glass fiber mixed felt; 5. Activated carbon fiber composite layer; 6. Polyester fiber composite layer. Detailed Implementation

[0020] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Reference Figures 1 to 3 A high-temperature needle-punched composite felt structure made of glass fiber includes a nylon fiber composite layer 1. A ceramic fiber composite layer 2 is pressed and bonded to the nylon fiber composite layer 1. The ceramic fiber composite layer 2 is made of cotton-like inorganic fibers, mainly fused to sapphire crystals, melted at 2100℃, and processed by high-speed centrifugation or blowing methods. It has advantages such as high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity, good resistance to mechanical vibration, small thermal expansion, and good thermal insulation performance, thus preventing the composite felt from deforming due to heat. A non-elastic support line 3 is fixedly connected to the side of the ceramic fiber composite layer 2 away from the nylon fiber composite layer 1. The thickness of the nylon fiber composite layer 1 is less than the thickness of the ceramic fiber composite layer 2, and the thickness of the non-elastic support line 3 is equal to the thickness of the nylon fiber composite layer 1. A high-temperature glass fiber composite felt 4 is fixed in place. An activated carbon fiber composite layer 5 is fixed to the side of the high-temperature glass fiber composite felt 4 away from the non-elastic support line 3. The thickness of the activated carbon fiber composite layer 5 is equal to the thickness of the ceramic fiber composite layer 2. The activated carbon fiber composite layer 5 is made of activated carbon fiber. High-temperature activation of a certain type of carbon fiber creates nanoscale pores on its surface, increasing the specific surface area. This results in a larger adsorption capacity and faster adsorption kinetics than granular activated carbon. A polyester fiber composite layer 6 is fixed to the side of the activated carbon fiber composite layer 5 away from the high-temperature glass fiber composite felt 4. The thickness of the polyester fiber composite layer 6 is equal to the thickness of the activated carbon fiber composite layer 5. The polyester fiber composite layer 6 has fine and uniform mesh openings, effectively filtering impurities and particles. It is a material with good wear resistance and corrosion resistance, and has a long service life.

[0022] Specifically, the non-elastic support line 3 is made of polyamide material, which has high tensile strength and wear resistance. The non-elastic support line 3 is a mesh structure formed by several X-shaped cross-woven lines. A grid is formed between adjacent non-elastic support lines 3 to allow water or air to pass through, ensuring the filtration effect of the retro felt. The thickness of the high-temperature glass fiber composite felt 4 is greater than the thickness of the ceramic fiber composite layer 2. The ceramic fiber composite layer 2 and the high-temperature glass fiber composite felt 4 are fixedly connected by needle punching. The non-elastic support line 3 is sandwiched between the ceramic fiber composite layer 2 and the high-temperature glass fiber composite felt 4.

[0023] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A glass fiber high-temperature needle-punched composite felt structure, characterized in that: The system includes a nylon fiber composite layer (1), a ceramic fiber composite layer (2) is pressed and bonded to the nylon fiber composite layer (1), a non-elastic support line (3) is fixedly connected to the side of the ceramic fiber composite layer (2) away from the nylon fiber composite layer (1), a high temperature glass fiber hybrid felt (4) is fixed to the side of the non-elastic support line (3) away from the ceramic fiber composite layer (2), an activated carbon fiber composite layer (5) is fixed to the side of the high temperature glass fiber hybrid felt (4) away from the non-elastic support line (3), and a polyester fiber composite layer (6) is fixed to the side of the activated carbon fiber composite layer (5) away from the high temperature glass fiber hybrid felt (4).

2. The glass fiber high-temperature needle-punched composite felt structure according to claim 1, characterized in that: The thickness of the nylon fiber composite layer (1) is less than the thickness of the ceramic fiber composite layer (2), and the thickness of the non-elastic support line (3) is equal to the thickness of the nylon fiber composite layer (1).

3. The glass fiber high-temperature needle-punched composite felt structure according to claim 1, characterized in that: The non-elastic support line (3) is a mesh structure formed by several X-shaped crosses, and a grid is formed between adjacent non-elastic support lines (3) for water or air to pass through.

4. The glass fiber high-temperature needle-punched composite felt structure according to claim 1, characterized in that: The thickness of the high-temperature glass fiber composite felt (4) is greater than the thickness of the ceramic fiber composite layer (2). The ceramic fiber composite layer (2) and the high-temperature glass fiber composite felt (4) are fixedly connected by needle punching. The non-elastic support line (3) is sandwiched between the ceramic fiber composite layer (2) and the high-temperature glass fiber composite felt (4).

5. The glass fiber high-temperature needle-punched composite felt structure according to claim 1, characterized in that: The thickness of the activated carbon fiber composite layer (5) is equal to the thickness of the ceramic fiber composite layer (2).

6. The glass fiber high-temperature needle-punched composite felt structure according to claim 1, characterized in that: The thickness of the polyester fiber composite layer (6) is equal to the thickness of the activated carbon fiber composite layer (5).

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