Modification equipment for carbon nanofiber purification module

Abstract

The utility model discloses modification equipment for a carbon nanofiber purification module. The modification equipment comprises an aerosol generator, a carbon nanofiber modification tank communicated with the aerosol generator, an air inducing mechanism communicated with the carbon nanofiber modification tank, and a drying mechanism communicated with the air inducing mechanism, the aerosol generator is used for atomizing the modification liquid into aerosol, and the air inducing mechanism is used for introducing air into the nano carbon fiber modification tank and mixing the air with the aerosol to modify the nano carbon fiber purification assembly; a mounting groove is formed in the nano carbon fiber modification tank, and the nano carbon fiber purification assembly is detachably arranged in the mounting groove. Through the arrangement, the loading efficiency of the modification liquid on the carbon nanofibers can be improved, the use amount of the modification liquid is reduced, the water content of the modified carbon nanofibers is reduced, the drying time is shortened, and the energy consumption is reduced. The modification equipment is suitable for purification of radioactive gas, acid gas, alkaline gas, hydrogen sulfide, mercury steam and VOC organic gas.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a modified device for a nano-carbon fiber purification module. Background Technology

[0002] ACF (carbon fiber) is the third generation of new adsorption materials following the widely used powdered activated carbon and granular activated carbon. Using ACF as a base material, it is modified to have a large number of functional groups for adsorbing and purifying specific gaseous pollutants, thus possessing value for gas purification engineering applications.

[0003] Traditional activated carbon modification technology achieves functionalization by immersing activated carbon in a modification solution, but this technology has the following problems:

[0004] First, the porous structure of activated carbon makes it prone to trapping air during impregnation, preventing the modifying solution from fully penetrating into the micropores. Under surface tension, air bubbles hinder the filling of the modifying solution, preventing the active sites from effectively loading the modifier, resulting in insufficient utilization of the modifying solution and reduced loading.

[0005] Secondly, to compensate for the insufficient loading capacity, the existing process increases the concentration of the modified liquid and extends the impregnation time, which leads to an increase in the consumption of modified liquid per batch and significantly increases production costs.

[0006] Furthermore, the modified material has a high moisture content, requiring long drying times and high energy consumption using traditional hot air drying methods. Prolonged high-temperature drying can also cause the modifier to decompose, leading to the loss of effective components. This problem is particularly problematic in large-scale production, reducing equipment turnover and becoming a key bottleneck restricting capacity expansion.

[0007] Currently, although some studies have attempted to improve the impregnation effect through ultrasonic assistance or vacuum pretreatment, existing technologies still cannot simultaneously resolve the contradiction between load efficiency, material loss and drying energy consumption. There is an urgent need to develop a low-energy-consumption, high-load-rate modification equipment. Utility Model Content

[0008] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a modification device for a nanofiber purification module, which aims to use an aerosol generator to vaporize the modification liquid to generate an aerosol, and use air as a carrier to allow the aerosol modification liquid to fully fill the microporous structure of the nanofiber, so as to make the modification of the nanofiber more complete.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A modification device for a carbon nanofiber purification module includes an aerosol generator, a carbon nanofiber modification tank connected to the outlet of the aerosol generator, an exhaust fan connected to the inlet and outlet of the carbon nanofiber modification tank via circulation pipes, and a drying fan connected to the exhaust fan via a drying pipe. The aerosol generator atomizes the modification liquid into an aerosol. The exhaust fan introduces air into the carbon nanofiber modification tank and mixes the air with the aerosol to modify the carbon nanofiber purification module. The exhaust fan and the drying fan dry the modified carbon nanofiber purification module. The exhaust fan also cools the dried carbon nanofiber purification module. An installation slot is provided inside the carbon nanofiber modification tank, and the carbon nanofiber purification module is detachably installed in the installation slot.

[0011] The nanofiber purification module modification equipment includes a nanofiber modification tank comprising a modification mixing chamber and a Venturi chamber. The inlet of the Venturi chamber is connected to the outlet of the aerosol generator via a one-way valve. The outlet of the exhaust fan is connected to the inlet of the Venturi chamber. The outlet of the Venturi chamber is connected to the inlet of the modification mixing chamber. The outlet of the modification mixing chamber is connected to the inlet of the exhaust fan. The aerosol generator is connected to a motor.

[0012] The modification equipment for the nano-carbon fiber purification module includes a first filter screen at the inlet of the modified mixing chamber and a second filter screen at the outlet of the Venturi chamber.

[0013] The modification equipment for the nano-carbon fiber purification module, wherein the pore size of the first filter screen is smaller than the pore size of the second filter screen.

[0014] The modification equipment for the nano-carbon fiber purification module includes slots in the modified mixing chamber and the venturi chamber, with the sidewalls of the first filter and the second filter respectively engaging with the corresponding slots.

[0015] The modification equipment for the nano-carbon fiber purification module includes multiple mounting slots arranged side-by-side within the modified mixing chamber, with the nano-carbon fiber purification component disposed in a corresponding mounting slot.

[0016] The modification device for the nano-carbon fiber purification module includes an aerosol generator comprising a modified liquid chamber, a high-pressure pump connected to the modified liquid chamber, and an atomizer connected to the high-pressure pump; the modified liquid chamber is used to prepare the modified liquid, and the high-pressure pump and the atomizer are used to atomize the modified liquid into an aerosol.

[0017] The modification equipment for the nano-carbon fiber purification module includes a liquid level sensor in the modified liquid chamber, a pressure sensor on the high-pressure pump, and a flow sensor on the atomizer; the liquid level sensor, the pressure sensor, and the flow sensor are electrically connected to the control mechanism.

[0018] The modified equipment for the nano-carbon fiber purification module, wherein the air extraction mechanism includes a variable frequency fan and a pressure transmitter connected to the variable frequency fan.

[0019] Beneficial effects:

[0020] 1. The modification equipment for the nano-carbon fiber purification module includes an aerosol generator and a nano-carbon fiber modification tank. The aerosol generator atomizes the modification liquid under high pressure to generate aerosol. Its advantage is that it uses air as a carrier to carry the aerosol to modify the active nano-carbon fibers, which can completely and uniformly modify the nano-carbon fibers. Unlike the traditional water-like impregnation method, it uses airflow as a carrier to modify the nano-carbon fibers, which is highly efficient and energy-saving, and can ensure the modification effect.

[0021] 2. The modification equipment realizes a complete nanofiber modification process, including gas delivery, aerosol preparation, nanofiber modification, nanofiber drying and cooling. It has a simple structure and is easy to operate. By changing the composition of the modification liquid and the air velocity, the influence of aerosol particle size on nanofiber modification can be analyzed to generate aerosols with different compositions and prepare different types of modified nanofibers, thus having a wider range of applications. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a modified device for a carbon nanofiber purification module.

[0023] Figure 2 This is a schematic diagram of the structure of the first and second filters.

[0024] Figure 3 This is a schematic diagram of an aerosol generator.

[0025] Explanation of main component symbols: 1-Motor, 2-Aerosol generator, 21-Modified liquid chamber, 211-Liquid level sensor, 22-High pressure pump, 221-Pressure sensor, 23-Atomizer, 231-Flow sensor, 24-Control mechanism, 3-Nano carbon fiber modified tank, 31-Modified mixing chamber, 311-First filter screen, 312-Card slot, 313-Mounting slot, 32-Venturi chamber, 321-Second filter screen, 4-Nano carbon fiber purification component, 5-Circulation pipeline, 6-Exhaust fan mechanism, 61-Variable frequency fan, 62-Pressure transmitter, 71-Drying mechanism, 72-Drying pipeline. Detailed Implementation

[0026] This utility model provides a modification device for a nanofiber purification module. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0027] Please see Figure 1 This utility model provides a modification device for a nanofiber purification module, including an aerosol generator 2, a nanofiber modification tank 3 connected to the outlet of the aerosol generator 2, an exhaust mechanism 6 connected to the inlet and outlet of the nanofiber modification tank 3 via circulation pipes 5, and a drying mechanism 71 connected to the exhaust mechanism 6 via a drying pipe 72. The aerosol generator 2 is used to atomize the modification liquid into aerosol. The exhaust mechanism 6 is used to introduce air into the nanofiber modification tank 3 and mix the air with the aerosol to modify the nanofiber purification component 4. The exhaust mechanism 6 and the drying mechanism 71 are used to dry the modified nanofiber purification component 4. The exhaust mechanism 6 is also used to cool the dried nanofiber purification component 4. The nanofiber modification tank 3 is provided with an installation groove 313, and the nanofiber purification component is detachably installed in the corresponding installation groove 313. Because carbon nanofibers are brittle, in order to prevent them from being damaged by airflow, they must first be made into carbon nanofiber purification components 4 and then modified. Therefore, the carbon nanofiber components are produced in a modular manner, meaning that the modified carbon nanofiber components are finished products that can be directly installed in air purifiers.

[0028] In practical applications, valves are installed on the pipes connecting the various mechanisms, and the opening or closing of the valves controls the connection or closure of the corresponding pipes.

[0029] Specifically, the nanofiber purification component 4 to be modified is placed in the mounting slot 313 inside the nanofiber modification tank 3. The pipe connecting the aerosol generator 2 and the nanofiber modification tank 3, as well as the valve on the circulation pipe 5, are opened. The valve on the drying pipe 72 is closed. The aerosol generator 2 is activated, causing the modified liquid to atomize into aerosol. The aerosol enters the nanofiber modification tank 3. The air extraction mechanism 6 is activated, introducing air into the nanofiber modification tank 3 and filling the nanofiber modification tank 3 with air and aerosol. The air and aerosol circulate in the circulation pipe 5, achieving full modification of the nanofiber in the nanofiber purification component 4 within the set operating time. Subsequently, the valves on the circulation pipe 5 and the aerosol generator 2 pipe are closed, and the valves on the drying pipe 72 and the exhaust port (outlet end) of the nano-carbon fiber modified tank 3 are opened. The drying mechanism 71 is then activated, providing heat. The exhaust fan 6 continuously introduces heated air into the nano-carbon fiber modified tank 3, which is then exhausted through the exhaust port. This process rapidly dries the nano-carbon fiber purification component 4 inside the nano-carbon fiber modified tank 3. After drying is complete, the drying mechanism 71 is closed, and the exhaust fan 6 introduces room temperature air into the nano-carbon fiber modified tank 3 to rapidly cool the nano-carbon fiber purification component 4 inside. Once the temperature inside the nano-carbon fiber modified tank 3 has decreased, the nano-carbon fiber purification component 4 can be removed from the mounting slot 313.

[0030] Please see Figure 1In some embodiments, the nano-carbon fiber modified tank 3 includes a modified mixing chamber 31 and a Venturi chamber 32. The inlet of the Venturi chamber 32 is connected to the outlet of the aerosol generator 2 via a one-way valve. The outlet of the exhaust fan 6 is connected to the inlet of the Venturi chamber 32, and the outlet of the Venturi chamber 32 is connected to the inlet of the modified mixing chamber 31. The outlet of the modified mixing chamber 31 is connected to the inlet of the exhaust fan 6. The aerosol generator 2 is connected to the motor 1. Driven by the motor 1, the aerosol generator 2 atomizes the modified liquid into aerosol. The atomized aerosol flows unidirectionally into the Venturi chamber 32. The high-speed airflow generated when the exhaust fan 6 is working creates a negative pressure at the inlet of the Venturi chamber 32 according to the Venturi effect, accelerating the intake of aerosol and causing the aerosol and air to mix initially within the Venturi chamber 32. The mixed aerosol and air enter the modified mixing chamber 31 from the outlet of the Venturi chamber 32. The nanofiber purification component 4 is placed in the modified mixing chamber 31. The mixed airflow of aerosol and air fills the modified mixing chamber 31 and comes into full contact with the nanofiber purification component 4. During this process, the modified liquid aerosol modifies the nanofiber. As the exhaust fan 6 continues to work, the mixed airflow in the modified mixing chamber 31 returns to the inlet of the exhaust fan 6 through its outlet via the circulation pipe 5, and is then introduced into the Venturi chamber 32. This cycle is repeated to achieve full modification of the nanofiber within a set time. After modification is complete, the one-way valve between the aerosol generator 2 and the Venturi chamber 32, as well as the relevant valves in the circulation pipe 5, are closed. The drying pipe 72 and the exhaust valve of the nanofiber modification tank 3 are opened. The drying fan 71 provides heat, and the exhaust fan 6 introduces the heated air into the Venturi chamber 32, and then into the modified mixing chamber 31. The hot air flows in the modified mixing chamber 31, carrying away the moisture on the nanofiber purification component 4, achieving rapid drying.

[0031] In the above configuration, the Venturi chamber 32 utilizes the high-speed airflow generated by the induced draft mechanism 6 to create negative pressure, rapidly drawing in aerosols. This allows for more uniform and efficient mixing of the aerosols with the air, and enables more thorough contact between the aerosol and carbon nanofiber purification components 4 during circulation. Compared to traditional impregnation modification techniques where air obstruction leads to low loading of the modifying liquid, this significantly improves the loading efficiency of the modifying liquid on the carbon nanofibers, effectively enhancing the modification effect of the carbon nanofiber purification module. Because the modifying liquid can be loaded onto the carbon nanofibers more efficiently, the amount of modifying liquid used can be reduced while achieving the same modification effect, thus lowering production costs. Through the coordinated operation of the induced draft mechanism 6 and the drying mechanism 71, hot air can flow rapidly and evenly within the modification mixing chamber 31, carrying away moisture from the carbon nanofiber purification components 4. Compared to the long drying time and high energy consumption caused by the high moisture content of the modified activated carbon in traditional processes, this significantly shortens the drying time and reduces energy consumption.

[0032] Please see Figure 1In some embodiments, a first filter 311 is provided at the inlet of the modified mixing chamber 31, and a second filter 321 is provided at the outlet of the Venturi chamber 32. The first filter 311 prevents impurities from entering the modified mixing chamber 31 with the airflow, thus avoiding wear or blockage to the nanofiber purification component 4 placed within it and other structures inside the modified mixing chamber 31. Furthermore, the first filter 311 ensures the purity of the mixed airflow entering the modified mixing chamber 31, allowing each part of the nanofiber purification component 4 to be modified in a relatively stable and uniform environment, improving the uniformity of the overall modification effect. The second filter 321 prevents agglomerates or large, un-atomized droplets that may be generated during the mixing process in the Venturi chamber 32 from entering subsequent pipes and equipment, protecting the induced draft mechanism 6.

[0033] Specifically, the pore size of the first filter 311 is smaller than that of the second filter 321. The second filter 321 is mainly responsible for intercepting larger impurities in the mixed airflow. The first filter 311, with its smaller pore size, further captures fine impurities missed by the second filter 321, as well as tiny agglomerates that may be generated during the mixing process in the Venturi chamber 32. This staged filtration method greatly improves the filtration efficiency of impurities in the mixed airflow, ensuring the purity of the airflow entering the modified mixing chamber 31 and providing a good environment for the modification of carbon nanofibers.

[0034] Please see Figure 2 Furthermore, slots 312 are respectively provided in the modified mixing chamber 31 and the venturi chamber 32, and the side walls of the first filter screen 311 and the second filter screen 321 are respectively engaged with the corresponding slots 312. During the initial installation of the equipment, workers can quickly and accurately install the filters without complicated tools or installation procedures. When the filters need to be replaced due to clogged mesh caused by impurities after a period of use, the old filter screen can be easily removed from the slot 312 and replaced with a new one, greatly saving equipment maintenance time and labor costs and improving equipment efficiency.

[0035] Please see Figure 1In some embodiments, multiple mounting slots 313 are provided, and these multiple mounting slots 313 are arranged side by side within the modified mixing chamber 31. Each nanofiber purification component 4 is detachably mounted in its corresponding mounting slot 313. The parallel mounting slots 313 within the modified mixing chamber 31 provide precise and convenient installation positions for the nanofiber purification components 4. Furthermore, multiple nanofiber purification components 4 can be modified simultaneously in a single modification process, which is beneficial for improving production efficiency. Before modification, workers can easily align and embed the nanofiber purification components 4 into the corresponding mounting slots 313 without complex positioning and fixing operations, greatly shortening installation / replacement time.

[0036] Please see Figure 3 In some embodiments, the aerosol generator 2 includes a modified liquid chamber 21, a high-pressure pump 22 connected to the modified liquid chamber 21, and an atomizer 23 connected to the high-pressure pump 22. The modified liquid chamber 21 is used to prepare the modified liquid, and the high-pressure pump 22 and the atomizer 23 are used to atomize the modified liquid into an aerosol. The high-pressure pump 22 can apply a stable and sufficient pressure to the modified liquid, delivering the modified liquid to the atomizer 23 at high speed. Under the power provided by the high-pressure pump 22, the atomizer 23 can efficiently atomize the modified liquid into uniform and fine aerosol particles. This fine atomization effect allows the modified liquid to mix thoroughly with the air at a smaller particle size, achieving more uniform and deeper modification when it subsequently contacts the nanofiber purification component 4, greatly improving the modification effect and efficiency.

[0037] Please see Figure 3Furthermore, a liquid level sensor 211 is installed in the modified liquid chamber 21, a pressure sensor 221 is installed on the high-pressure pump 22, and a flow sensor 231 is installed on the atomizer 23. The liquid level sensor 211, pressure sensor 221, and flow sensor 231 are electrically connected to the control mechanism 24. The liquid level sensor 211 in the modified liquid chamber 21 can monitor the liquid level of the modified liquid in real time. If the liquid level is too low, it can promptly report to the control mechanism 24, reminding the operator to replenish the modified liquid to avoid atomization interruption due to insufficient modified liquid and ensure the continuity of the modification work. The pressure sensor 221 on the high-pressure pump 22 continuously monitors the pump pressure. If the pressure is abnormal, the control mechanism 24 can promptly adjust the operating parameters of the high-pressure pump 22 to ensure stable pump operation, thereby ensuring that the modified liquid is delivered to the atomizer 23 at a suitable pressure and maintaining a stable atomization effect. The flow sensor 231 on the atomizer 23 accurately measures the flow rate of the atomized aerosol. Based on this data and combined with the actual modification requirements, the control mechanism 24 precisely regulates the operating status of the high-pressure pump 22 and the atomizer 23, achieving real-time control of key parameters during the modification process. Through the coordinated work of the level, pressure, and flow sensors 231 and the control mechanism 24, the equipment can accurately maintain the stability of parameters at each stage of the modification process.

[0038] Please see Figure 1 Specifically, the air extraction mechanism 6 includes a variable frequency fan 61 and a pressure transmitter 62 connected to the variable frequency fan 61. The variable frequency fan 61 in the air extraction mechanism 6 can flexibly adjust its speed according to the needs of different operating stages of the equipment. In the nanofiber modification stage, the rotation speed can be increased to increase the circulation of air and aerosol, allowing the nanofiber purification component 4 to have more sufficient contact with the modified liquid aerosol, thereby improving the modification efficiency and effect. In the drying stage, the fan speed can be appropriately adjusted to control the flow rate and velocity of hot air, ensuring that the nanofiber purification component 4 dries quickly under suitable temperature and airflow conditions, avoiding uneven drying or excessively long drying time due to excessive or insufficient airflow. In the cooling stage, the rotation speed can be precisely adjusted to introduce an appropriate amount of room temperature air, achieving efficient cooling.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A modification device for a nanofiber purification module, characterized in that, The device includes an aerosol generator, a nanofiber modification tank connected to the outlet of the aerosol generator, an exhaust fan connected to the inlet and outlet of the nanofiber modification tank via circulation pipes, and a drying fan connected to the exhaust fan via a drying pipe. The aerosol generator atomizes the modification liquid into aerosol. The exhaust fan introduces air into the nanofiber modification tank and mixes the air with the aerosol to modify the nanofiber purification component. The exhaust fan and the drying fan are used to dry the modified nanofiber purification component. The exhaust fan also cools the dried nanofiber purification component. The nanofiber modification tank has an installation slot, and the nanofiber purification component is detachably installed in the installation slot.

2. The modification equipment for the nanofiber purification module according to claim 1, characterized in that, The nano-carbon fiber modification tank includes a modification mixing chamber and a Venturi chamber. The inlet of the Venturi chamber is connected to the outlet of the aerosol generator via a one-way valve. The outlet of the induced draft mechanism is connected to the inlet of the Venturi chamber. The outlet of the Venturi chamber is connected to the inlet of the modification mixing chamber. The outlet of the modification mixing chamber is connected to the inlet of the induced draft mechanism. The aerosol generator is connected to a motor.

3. The modification equipment for the nanofiber purification module according to claim 2, characterized in that, The modified mixing chamber is equipped with a first filter screen at its inlet, and the Venturi chamber is equipped with a second filter screen at its outlet.

4. The modification equipment for the nanofiber purification module according to claim 3, characterized in that, The mesh size of the first filter screen is smaller than that of the second filter screen.

5. The modification equipment for the nanofiber purification module according to claim 3, characterized in that, The modified mixing chamber and the venturi chamber are respectively provided with slots, and the side walls of the first filter screen and the second filter screen are respectively engaged with the corresponding slots.

6. The modification equipment for the nanofiber purification module according to claim 2, characterized in that, The mounting slots are configured as multiple slots, and the multiple mounting slots are arranged side by side in the modified mixing chamber, with the nano-carbon fiber purification component disposed in the corresponding mounting slot.

7. The modification equipment for the nanofiber purification module according to claim 1, characterized in that, The aerosol generator includes a modified liquid chamber, a high-pressure pump connected to the modified liquid chamber, and an atomizer connected to the high-pressure pump. The modified liquid chamber is used to prepare the modified liquid, and the high-pressure pump and the atomizer are used to atomize the modified liquid into an aerosol.

8. The modification equipment for the nanofiber purification module according to claim 7, characterized in that, A liquid level sensor is installed in the modified liquid chamber, a pressure sensor is installed on the high-pressure pump, and a flow sensor is installed on the atomizer; the liquid level sensor, the pressure sensor, and the flow sensor are electrically connected to the control mechanism.

9. The modification equipment for the nanofiber purification module according to claim 1, characterized in that, The air extraction mechanism includes a variable frequency fan and a pressure transmitter connected to the variable frequency fan.

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