Gas dispersion heating device and equipment and method for continuously preparing carbon nanotube in-situ modified glass fiber

Abstract

The invention relates to a gas dispersing and heating device and equipment and a method for continuously preparing carbon nanotube in-situ modified glass fibers, the gas dispersing and heating device can directly guide gas into a heating furnace through a gas diffuser, so that the atmosphere of a heating area is stable, and the reaction is stable. According to the equipment for continuously preparing the carbon nanotube in-situ modified glass fiber, two processes of glass fiber surface catalyst layer arrangement and carbon nanotube in-situ growth which are greatly different can be integrated into one set of equipment, and the matching of the processes and the equipment is realized, so that the continuous preparation of the carbon nanotube in-situ modified glass fiber can be realized, and the continuous preparation of the carbon nanotube in-situ modified glass fiber is realized. According to the method, continuous efficient modification of the carbon nanotubes on the glass fibers can be realized, the production efficiency can be greatly improved, the growth consistency and controllability of the carbon nanotubes can be ensured, and industrial preparation of the carbon nanotube in-situ modified glass fibers is facilitated, so that the method is more practical.

Description

Technical Field

[0001] The invention relates to a gas dispersion heating device, in particular to a gas dispersion heating device and equipment and a method for continuously preparing carbon nanotube in-situ modified glass fibers. Background Art

[0002] Glass fiber is a widely used inorganic non-metallic material with high insulation, high heat resistance and good mechanical strength. It is often used to make various composite materials, but it also faces problems such as single function and poor interface compatibility of composite materials. Carbon nanotubes are a new type of carbon material with unique physical, chemical and mechanical properties. They are considered to be good functional modifiers for traditional fiber materials.

[0003] In-situ modification of glass fibers using carbon nanotubes can improve their mechanical properties in electromagnetic absorption materials, electromagnetic shielding materials or other composite materials while retaining their original properties. However, in the prior art, there are no reports on the preparation of continuous carbon nanotube-modified glass fibers involving in-situ growth of continuous carbon nanotubes and the setting of continuous catalytic layers. In addition, the in-situ modified glass fibers prepared by existing equipment have problems such as difficulty in increasing the content of carbon nanotubes, poor uniformity of carbon nanotubes, and weak bonding between carbon nanotubes and glass fibers. There are still great challenges to the industrial preparation of in-situ modified glass fibers by carbon nanotubes. Summary of the invention

[0004] The main purpose of the present invention is to provide a gas dispersion heating device and a device and method for continuously preparing carbon nanotube in-situ modified glass fiber. The gas dispersion heating device directly introduces the gas into the heating furnace through the gas diffuser through the integrated design of the gas diffuser and the heating furnace, so that the atmosphere in the heating area (that is, the actual reaction area) is stable and the reaction is stable. The device for continuously preparing carbon nanotube in-situ modified glass fiber of the present invention can integrate the two processes of glass fiber surface catalytic layer setting and carbon nanotube in-situ growth, which are quite different, into a set of equipment through the improvement of the equipment, so as to achieve the matching of the process and the equipment, so as to achieve the continuous preparation of carbon nanotube in-situ modified glass fiber, achieve the efficient modification of glass fiber by continuous carbon nanotube, ensure the consistency and controllability of carbon nanotube growth, and greatly improve the production efficiency. The device and method of the present invention can regulate the equipment and process according to the specific glass fiber processing requirements, and the equipment and process have high controllability, which is conducive to improving the production efficiency and realizing the industrial preparation of carbon nanotube in-situ modified glass fiber, so as to be more suitable for practical use.

[0005] The purpose of the present invention and the technical problem to be solved are achieved by adopting the following technical solutions. A gas dispersion heating device proposed in the present invention comprises:

[0006] A heating furnace is provided with a plurality of circular holes; the circular holes are provided through two opposite sides of the heating furnace;

[0007] A gas diffuser is provided with an air inlet channel on one side thereof; a plurality of air outlet channels are provided on the other side opposite to the air inlet channel; the air outlet channels pass through the circular hole; and the gas diffuser is respectively connected to two opposite sides of the heating furnace.

[0008] The purpose of the present invention and the technical problem solved by the present invention are also achieved by adopting the following technical solutions. According to the present invention, a carbon nanotube in-situ growth device is proposed, which comprises:

[0009] A heating furnace is provided with a plurality of circular holes; the circular holes are provided through two opposite sides of the heating furnace;

[0010] A gas diffuser, one side of which is provided with an air inlet channel; a plurality of air outlet channels are provided on the other side opposite to the air inlet channel; the air outlet channels pass through the circular hole; the gas diffuser is respectively connected to two opposite sides of the heating furnace;

[0011] The carbon nanotube growth chamber is embedded in the heating furnace.

[0012] The purpose of the present invention and the technical problem solved by the present invention are also achieved by adopting the following technical solutions. According to the present invention, a device for continuously preparing carbon nanotube in-situ modified glass fiber is provided, which comprises:

[0013] A container provided with a polytetrafluoroethylene liner;

[0014] A drying device, which is arranged downstream of the container; the drying device is provided with a glass fiber inlet and a glass fiber outlet;

[0015] According to the gas dispersion heating device as described above, it is arranged downstream of the drying device; the gas dispersion heating device is provided with a glass fiber inlet and a glass fiber outlet;

[0016] According to the carbon nanotube in-situ growth device as described above, it is arranged downstream of the gas dispersion heating device; the carbon nanotube in-situ growth device is provided with a glass fiber inlet and a glass fiber outlet;

[0017] a first spool disposed upstream of the container;

[0018] The second bobbin is arranged downstream of the carbon nanotube in-situ growth device.

[0019] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0020] Preferably, the aforementioned device further comprises:

[0021] A plurality of rollers, the surfaces of which are provided with polytetrafluoroethylene;

[0022] The rollers are respectively arranged between the container and the first spool and downstream of the container.

[0023] Preferably, the aforementioned device further comprises:

[0024] An atmosphere control system comprises an inert gas generating device and a flow control device; the flow control device is respectively connected to an air inlet channel of the gas dispersion heating device and an air inlet channel of the carbon nanotube in-situ growth device.

[0025] Preferably, the aforementioned device further comprises:

[0026] The air blowing device is arranged between the gas dispersing and heating device and the carbon nanotube in-situ growth device, and is used for replacing the gas around the glass fiber with an inert gas.

[0027] Preferably, in the aforementioned device, the drying device comprises:

[0028] An infrared heating furnace, which is arranged on the inner wall of the drying device; an asbestos layer is arranged between the infrared heating furnace and the inner wall;

[0029] A stainless steel lining plate is arranged on the other inner side wall of the drying device and is opposite to the infrared heating furnace.

[0030] Preferably, in the aforementioned device, in the carbon nanotube in-situ growth apparatus, the carbon nanotube growth chamber is a tubular rectangular parallelepiped chamber.

[0031] Preferably, in the aforementioned device, the tubular rectangular cavity has a length of 1.5 to 3 m, a width of 0.1 to 0.25 m, and a height of 0.05 to 0.1 m.

[0032] The purpose of the present invention and the technical problem solved by the present invention are also achieved by the following technical solutions. According to the present invention, a method for continuously preparing carbon nanotube in-situ modified glass fiber using the above-mentioned equipment comprises the following steps:

[0033] S1. In the container, impregnating glass fiber with a precursor solution to obtain a wet glass fiber loaded with a catalyst precursor;

[0034] S2, drying the wet glass fiber loaded with the catalyst precursor obtained in S1 in the drying device to obtain dry glass fiber loaded with the catalyst precursor;

[0035] S3, in the gas dispersion heating device, thermally reducing the dry glass fiber carrying the catalyst precursor obtained in S2 to obtain a glass fiber with a catalytic layer on the surface;

[0036] S4. In the carbon nanotube in-situ growth device, in-situ growth of carbon nanotubes is performed on the glass fiber with a catalytic layer on the surface obtained in S3 to obtain a glass fiber modified with carbon nanotubes in-situ.

[0037] By means of the above technical solution, the device for gas dispersion and heating and the equipment for continuous preparation of in-situ modified glass fibers of carbon nanotubes of the present invention have at least the following advantages:

[0038] 1. The present invention proposes a gas dispersion heating device, which directly introduces the gas into the heating furnace through the gas diffuser through the integrated design of the gas diffuser and the heating furnace, so that the atmosphere in the heating zone (that is, the actual reaction zone) is stable and the reaction is stable, thereby solving the problem in the prior art that the traditional tubular furnace has air intake at both ends and central heating, resulting in an unstable reaction atmosphere.

[0039] 2. The present invention proposes a carbon nanotube in-situ growth device, which embeds the carbon nanotube growth chamber in the heating furnace, and then connects the heating furnace with the gas diffuser to form an integrated design structure. It can directly introduce the gas into the heating furnace through the gas diffuser, and then introduce it into the carbon nanotube growth chamber through the heating furnace, so that the atmosphere and temperature in the carbon nanotube growth chamber are stable, which is conducive to ensuring the consistency and controllability of carbon nanotube growth. The carbon nanotube growth chamber is a tubular rectangular cavity, which makes the growth efficiency of carbon nanotubes higher while facilitating the use and maintenance of the device. At the same time, further, the size and shape of the carbon nanotube growth chamber can be adjusted according to actual conditions, so that it is more suitable for practical use.

[0040] 3. The present invention proposes a device for continuously preparing carbon nanotube in-situ modified glass fiber, which includes a gas dispersion heating device, a carbon nanotube in-situ growth device, a container, a drying device, a spool, a roller and an atmosphere control system. It can integrate two very different processes, namely, setting a catalytic layer on the surface of the glass fiber and in-situ growth of carbon nanotubes, into a set of equipment to achieve matching of the process and the equipment. Therefore, it can realize efficient modification of carbon nanotubes of continuous glass fiber, ensure the consistency and controllability of carbon nanotube growth, greatly improve production efficiency, and be more suitable for practical use.

[0041] 4. The method for continuously preparing carbon nanotube in-situ modified glass fiber proposed in the present invention can adjust the equipment and process according to the specific glass fiber processing requirements. The equipment and process are highly controllable, which is conducive to improving production efficiency and realizing the industrial preparation of carbon nanotube in-situ modified glass fiber, thereby being more suitable for practical use.

[0042] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a partial structural schematic diagram of the gas dispersion heating device of the present invention.

[0044] Figure 2 It is a schematic diagram of the overall structure of the gas dispersion heating device of the present invention.

[0045] Figure 3 It is a schematic diagram of the equipment for continuously preparing carbon nanotube in-situ modified glass fiber of the present invention. DETAILED DESCRIPTION

[0046] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the specific implementation, structure, features and effects of a device for gas dispersion and heating and a device for continuous preparation of in-situ modified glass fibers of carbon nanotubes proposed by the present invention in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0047] The present invention will be further described below in conjunction with specific embodiments, but this should not be construed as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made to the present invention by technicians in this field based on the above-mentioned contents of the present invention still fall within the scope of protection of the present invention.

[0048] Unless otherwise specified, the materials, reagents, etc. mentioned below are all commercially available products well known to those skilled in the art; unless otherwise specified, the methods described are all methods well known in the art. Unless otherwise defined, the technical terms or scientific terms used should have the common meanings understood by ordinary technicians in the field to which the present invention belongs.

[0049] The first aspect of the present invention provides a gas dispersion heating device, as shown in the attached Figure 1 As shown, it includes:

[0050] A heating furnace 1 is provided with a plurality of circular holes 2; the circular holes 2 are provided through two opposite sides of the heating furnace;

[0051] The gas diffuser 3 has an air inlet channel 5 on one side thereof; a plurality of air outlet channels 6 are arranged on the other side opposite to the air inlet channel 5; the air outlet channels 6 pass through the circular hole 2; and the gas diffuser 3 is connected to two opposite sides of the heating furnace 1 respectively.

[0052] The gas dispersion heating device of the present invention integrates the gas diffuser 3 and the heating furnace 1 so that the gas outlet channel 6 of the gas diffuser 3 can pass through the circular hole 2 on the tube wall of the heating furnace 1, and then directly introduces the gas into the heating furnace 1 through the gas diffuser 3, so that the atmosphere in the heating area (that is, the actual reaction area) is stable and the reaction is stable, which solves the problem of the conventional tubular furnace in the prior art that both ends of the gas are inlet and the center is heated, resulting in an unstable reaction atmosphere. The gas diffuser 3 can also preheat the gas in advance according to the process requirements by using the residual temperature of the heating furnace 1.

[0053] The gas dispersion heating device of the present invention, as shown in the attached Figure 1 As shown, a sheet structure is provided inside the diffusion chamber 4 of the gas diffuser to enhance the turbulence of the gas, so as to achieve gas mixing and diffusion into the interior of the heating furnace 1.

[0054] The gas dispersion heating device of the present invention, as shown in the attached Figure 1 As shown, the temperature of the heating furnace 1 is automatically controlled by a temperature probe sensor.

[0055] According to the present invention, the gas dispersion heating device, as shown in the attached Figure 2 As shown, both ends of the heating furnace 1 (the cross sections on both sides) are completely open, that is, both ends of the heating furnace 1 are open to the atmosphere, and the gas diffuser 3 introduces the gas directly into the heating furnace 1. After the reaction is completed, the unreacted gas is discharged to the atmosphere from the openings at both ends of the heating furnace 1 and can be treated as waste gas.

[0056] According to the present invention, in some embodiments of the gas dispersion heating device, the gas diffuser 3 can directly replace part of the tube wall of the heating furnace 1 and form an integral body with the heating furnace 1, so that the heating furnace 1 can be connected in series horizontally or in parallel horizontally or in parallel vertically, wherein the gas diffuser 3 has a gas channel in each channel of the heating furnace 1, and thus can be adapted to different process requirements, can perform multi-channel processing at the same time, and improve production efficiency.

[0057] The second aspect of the present invention provides a carbon nanotube in-situ growth device, which comprises:

[0058] A heating furnace is provided with a plurality of circular holes; the circular holes are provided through two opposite sides of the heating furnace;

[0059] A gas diffuser, one side of which is provided with an air inlet channel; a plurality of air outlet channels are provided on the other side opposite to the air inlet channel; the air outlet channels pass through the circular hole; the gas diffuser is respectively connected to two opposite sides of the heating furnace;

[0060] The carbon nanotube growth chamber is embedded in the heating furnace.

[0061] The present invention proposes a carbon nanotube in-situ growth device, which embeds a carbon nanotube growth chamber in a heating furnace, and then connects the heating furnace to a gas diffuser to form an integrated design structure, which can directly introduce gas into the heating furnace through the gas diffuser, and then introduce gas into the carbon nanotube growth chamber through the heating furnace, so that the atmosphere and temperature in the carbon nanotube growth chamber are stable, which is conducive to ensuring the consistency and controllability of carbon nanotube growth. The carbon nanotube growth chamber is a tubular rectangular cavity, which makes the growth efficiency of carbon nanotubes higher while being conducive to the use and maintenance of the device. At the same time, further, the size of the carbon nanotube growth chamber can be adjusted according to actual conditions, so that it is more suitable for practical use.

[0062] According to the present invention, carbon will be deposited in the carbon nanotube growth chamber during the in-situ growth of carbon nanotubes, so the carbon nanotube growth chamber is easy to disassemble and clean.

[0063] The third aspect of the present invention provides a device for continuously preparing carbon nanotube in-situ modified glass fibers, as shown in the attached Figure 3 As shown, it includes:

[0064] A container 9 provided with a polytetrafluoroethylene liner;

[0065] A drying device 10 is disposed downstream of the container 9; the drying device 10 is provided with a glass fiber inlet and a glass fiber outlet;

[0066] According to the gas dispersion heating device 11 as described above, it is arranged downstream of the drying device 10; the gas dispersion heating device 11 is provided with a glass fiber inlet and a glass fiber outlet;

[0067] According to the carbon nanotube in-situ growth device 13 as described above, it is arranged downstream of the gas dispersion heating device 11; the carbon nanotube in-situ growth device 13 is provided with a glass fiber inlet and a glass fiber outlet;

[0068] A first spool 7, arranged upstream of the container 9;

[0069] The second bobbin 14 is disposed downstream of the carbon nanotube in-situ growth device 13 .

[0070] The equipment described in the present invention, the container 9, the drying device 10 and the gas dispersion heating device 11 together constitute a device for setting a catalyst layer on the surface of continuous glass fibers. According to the equipment described in the present invention, two processes that are quite different, namely, setting a catalyst layer on the surface of glass fibers and in-situ growth of carbon nanotubes, can be integrated into a set of equipment to achieve matching of the process and the equipment, thereby achieving efficient modification of carbon nanotubes on continuous glass fibers, ensuring the consistency and controllability of carbon nanotube growth, greatly improving production efficiency, and thus being more suitable for practical use.

[0071] According to the device of the present invention, the drying device 10 is provided with a glass fiber inlet and a glass fiber outlet to facilitate the entry and exit of the glass fiber, and the temperature inside the drying device 10 is automatically controlled by a probe sensor.

[0072] According to the device of the present invention, the first bobbin 7 is a bobbin for releasing glass fibers, and the second bobbin 14 is a bobbin for collecting glass fibers, and the glass fibers can be wound on the bobbin in the form of filaments, bundles or fabrics. Further, the first bobbin 7 and the second bobbin 14 are controlled by a synchronous motor to facilitate continuous preparation.

[0073] The device according to the present invention further comprises:

[0074] A plurality of rollers 8, the surfaces of which are provided with polytetrafluoroethylene;

[0075] The rollers 8 are respectively arranged between the container 9 and the first bobbin 7 and downstream of the container 9 .

[0076] According to the present invention, the surface of the roller 8 contains polytetrafluoroethylene, which can reduce the resistance of the glass fiber during transmission.

[0077] In some embodiments of the present invention, the roller 8 is connected to a pulley. According to specific process requirements, for example, when a higher glass fiber pulling speed is required, in order to avoid the traction force being concentrated at both ends of the container 9, which may cause the glass fiber to be easily broken, the roller 8 is used as an auxiliary glass fiber conveying device, and can be driven by a motor to rotate in the same direction through the pulley connected thereto to drive the glass fiber to be conveyed.

[0078] The device according to the present invention further comprises:

[0079] The atmosphere control system 15 comprises an inert gas generating device and a flow control device; the flow control device is connected to the air inlet channel of the gas dispersion heating device 11 and the air inlet channel of the carbon nanotube in-situ growth device 13 respectively.

[0080] According to the present invention, in the equipment for continuous preparation of carbon nanotube in-situ modified glass fiber, the atmosphere required by the gas dispersion heating device 11 and the carbon nanotube in-situ growth device 13 is derived from the atmosphere control system 15, wherein the inert gas generating device provides inert gas protection, and the flow control device can accurately control the amount of atmosphere required by the gas dispersion heating device 11 and the carbon nanotube in-situ growth device 13, and introduce the gas through the gas diffuser.

[0081] The device according to the present invention further comprises:

[0082] The air blowing device 12 is disposed between the gas dispersion heating device 11 and the carbon nanotube in-situ growth device 13 and is used to replace the gas around the glass fiber with an inert gas.

[0083] According to the present invention, the inert gas of the blowing device 12 can replace the reducing gas around the glass fiber in the previous stage, thereby preventing the reducing gas from entering the downstream carbon nanotube in-situ growth device 13 .

[0084] According to the equipment of the present invention, the drying device 10 comprises:

[0085] An infrared heating furnace, which is arranged on the inner wall of the drying device 10; an asbestos layer is arranged between the infrared heating furnace and the inner wall;

[0086] The stainless steel lining plate is arranged on the other inner wall of the drying device 10 and is opposite to the infrared heating furnace.

[0087] According to the equipment described in the present invention, the stainless steel lining plate is used to reflect infrared rays, ensuring that the upper and lower surfaces of the glass fiber can be fully dried by infrared radiation during the drying process.

[0088] According to the present invention, in some embodiments, the exterior of the drying device 10 is wrapped with an asbestos layer having a heat-insulating effect, so as to further reduce the energy consumption of the drying device 10 .

[0089] According to the equipment described in the present invention, in the carbon nanotube in-situ growth device 13, the carbon nanotube growth chamber is a tubular rectangular chamber. Further, the carbon nanotube growth chamber is a tubular rectangular quartz chamber. The tubular rectangular quartz chamber is conducive to the in-situ growth of carbon nanotubes at a temperature of 450-800°C and is convenient for later maintenance.

[0090] According to the equipment of the present invention, the length of the tubular rectangular cavity is 1.5 to 3 m, the width is 0.1 to 0.25 m, and the height is 0.05 to 0.1 m, so that the growth efficiency of carbon nanotubes is higher while facilitating the use and maintenance of the equipment, which is conducive to ensuring the consistency and controllability of the growth of carbon nanotubes.

[0091] According to the device of the present invention, further, a fiber tensioner may be arranged between the first spool 7 and the roller 8, and the fiber tensioner can give the glass fiber a certain tension to maintain a horizontal state.

[0092] A fourth aspect of the present invention provides a method for continuously preparing carbon nanotube in-situ modified glass fibers using the above-mentioned apparatus, which comprises the following steps:

[0093] S1. In the container, impregnating glass fiber with a precursor solution to obtain a wet glass fiber loaded with a catalyst precursor;

[0094] S2, drying the wet glass fiber loaded with the catalyst precursor obtained in S1 in the drying device to obtain dry glass fiber loaded with the catalyst precursor;

[0095] S3, in the gas dispersion heating device, thermally reducing the dry glass fiber carrying the catalyst precursor obtained in S2 to obtain a glass fiber with a catalytic layer on the surface;

[0096] S4. In the carbon nanotube in-situ growth device, in-situ growth of carbon nanotubes is performed on the glass fiber with a catalytic layer on the surface obtained in S3 to obtain a glass fiber modified with carbon nanotubes in-situ.

[0097] In the method described in the present invention, steps S1, S2 and S3 are the process of setting the catalytic layer on the surface of the continuous glass fiber.

[0098] According to the method described in the present invention, two processes with quite different characteristics, namely, setting of a catalytic layer on the surface of glass fibers and in-situ growth of carbon nanotubes, can be integrated into a set of equipment, so as to achieve matching of process and equipment, and the equipment and process can be regulated according to specific glass fiber processing requirements. The equipment and process are highly controllable, which is beneficial to improving production efficiency. Therefore, efficient modification of carbon nanotubes of continuous glass fibers can be achieved, and the consistency and controllability of carbon nanotube growth can be ensured, which is beneficial to the industrial preparation of in-situ modified glass fibers with carbon nanotubes, thereby being more suitable for practical use.

[0099] The technical features in the claims and / or the specification of the present invention may be combined, and the combination is not limited to the combination obtained by reference in the claims. The technical solution obtained by combining the technical features in the claims and / or the specification is also within the protection scope of the present invention.

[0100] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A gas dispersion heating device, characterized in that: It includes: A heating furnace is provided with a plurality of circular holes; the circular holes are provided through two opposite sides of the heating furnace; A gas diffuser is provided with an air inlet channel on one side thereof; a plurality of air outlet channels are provided on the other side opposite to the air inlet channel; the air outlet channels pass through the circular hole; and the gas diffuser is respectively connected to two opposite sides of the heating furnace.

2. A carbon nanotube in-situ growth device, characterized in that: It includes: A heating furnace is provided with a plurality of circular holes; the circular holes are provided through two opposite sides of the heating furnace; A gas diffuser, one side of which is provided with an air inlet channel; a plurality of air outlet channels are provided on the other side opposite to the air inlet channel; the air outlet channels penetrate the circular hole; the gas diffuser is respectively connected to two opposite sides of the heating furnace; The carbon nanotube growth chamber is embedded in the heating furnace.

3. A device for continuously preparing carbon nanotube in-situ modified glass fibers, characterized in that: It includes: A container provided with a polytetrafluoroethylene liner; A drying device, which is arranged downstream of the container; the drying device is provided with a glass fiber inlet and a glass fiber outlet; The gas dispersion heating device according to claim 1, which is arranged downstream of the drying device; the gas dispersion heating device is provided with a glass fiber inlet and a glass fiber outlet; The carbon nanotube in-situ growth device according to claim 2, which is arranged downstream of the gas dispersion heating device; the carbon nanotube in-situ growth device is provided with a glass fiber inlet and a glass fiber outlet; a first spool disposed upstream of the container; The second bobbin is arranged downstream of the carbon nanotube in-situ growth device.

4. The device according to claim 3, characterized in that It also includes: A plurality of rollers, the surfaces of which are provided with polytetrafluoroethylene; The rollers are respectively arranged between the container and the first spool and downstream of the container.

5. The device according to claim 3, characterized in that It also includes: An atmosphere control system comprises an inert gas generating device and a flow control device; the flow control device is respectively connected to an air inlet channel of the gas dispersion heating device and an air inlet channel of the carbon nanotube in-situ growth device.

6. The device according to claim 3, characterized in that It also includes: The air blowing device is arranged between the gas dispersing and heating device and the carbon nanotube in-situ growth device, and is used for replacing the gas around the glass fiber with an inert gas.

7. The device according to claim 3, characterized in that The drying device comprises: An infrared heating furnace, which is arranged on the inner wall of the drying device; an asbestos layer is arranged between the infrared heating furnace and the inner wall; A stainless steel lining plate is arranged on the other inner side wall of the drying device and is opposite to the infrared heating furnace.

8. The device according to claim 3, characterized in that In the carbon nanotube in-situ growth device, the carbon nanotube growth chamber is a tubular rectangular parallelepiped chamber.

9. The device according to claim 8, characterized in that The tubular rectangular cavity has a length of 1.5 to 3 m, a width of 0.1 to 0.25 m, and a height of 0.05 to 0.1 m.

10. A method for continuously preparing carbon nanotube in-situ modified glass fibers using the equipment described in any one of claims 3 to 9, characterized in that: It includes the following steps: S1. In the container, impregnating glass fiber with a precursor solution to obtain a wet glass fiber loaded with a catalyst precursor; S2, drying the wet glass fiber loaded with the catalyst precursor obtained in S1 in the drying device to obtain dry glass fiber loaded with the catalyst precursor; S3, in the gas dispersion heating device, thermally reducing the dry glass fiber carrying the catalyst precursor obtained in S2 to obtain a glass fiber with a catalytic layer on the surface; S4. In the carbon nanotube in-situ growth device, in-situ growth of carbon nanotubes is performed on the glass fiber with a catalytic layer on the surface obtained in S3 to obtain a glass fiber modified with carbon nanotubes in-situ.

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