Carbon dioxide separation and recovery device for carbon capture

Abstract

The utility model discloses a carbon dioxide separation and recovery device for carbon capture, and relates to the technical field of carbon dioxide recovery. The adsorption device comprises an adsorption device body, an input port, an output port and a motor, a transmission shaft is arranged at the output end of the motor, a cleaning mechanism is arranged on the outer side of the transmission shaft, the cleaning mechanism comprises a scraping plate, and the scraping plate is fixedly connected with the transmission shaft through a supporting rod. Aerosol is effectively prevented from being adhered to the inner wall through the scraping effect of the scraping plate, the cleanliness of the inner wall is ensured, the scraping plate is obliquely arranged, the scraped aerosol can be guided into the bearing frame, the aerosol can be collected in a centralized mode through the design, follow-up treatment and management are facilitated, and the cleaning effect of the inner wall is improved. The accumulation of aerosol on the inner wall can be avoided by keeping the cleanliness of the inner wall, so that the cleaning frequency of the inner wall of the adsorption device main body is reduced, the efficiency of the device is favorably improved, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide recovery, in particular to a carbon dioxide separation and recovery device for carbon capture. Background Art

[0002] Carbon capture and carbon dioxide separation and recovery devices are of great significance to environmental protection. They can not only reduce the concentration of carbon dioxide in the atmosphere, but also promote the recycling of resources. By converting the recovered carbon dioxide into useful products or fuels, it can achieve effective utilization of resources while reducing negative impacts on the environment.

[0003] In the process of using the existing carbon dioxide adsorption recovery device, the adsorbent commonly used is an aqueous solution of ethanolamines, such as monoethanolamine (MEA) and diethanolamine (DEA), which are easy to combine with acidic gases such as carbon dioxide at room temperature, and the acidic gases are easy to release when heated. This characteristic makes its aqueous solution often used for gas purification. Please refer to the comparative document, application number: 202320174336.4. However, when the hydrogen atoms in ethanolamine react with CO2, one of the hydrogen atoms will combine with CO2 to form an ethanolamine derivative. Since the volume of ethanolamine derivatives is much larger than that of CO2 in the aqueous solution, precipitates may be formed, collectively referred to as aerosols. In the process of adsorbing carbon dioxide, such aerosols are very easy to adhere to the inner wall surface of the device body, and the inner wall of the device needs to be frequently cleaned, resulting in low adsorption efficiency and causing risks such as poor operation of the next process. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a carbon dioxide separation and recovery device for carbon capture, so as to solve the technical problem that aerosol is very easy to adhere to the inner wall surface of the device body during the process of adsorbing carbon dioxide.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a carbon dioxide separation and recovery device for carbon capture, comprising an adsorption device body, an input port, an output port and a motor, a transmission shaft is provided at the output end of the motor, a cleaning mechanism is provided on the outside of the transmission shaft, the cleaning mechanism comprises a scraper, and the scraper is fixedly connected to the transmission shaft through a support rod, a receiving frame is provided below the inner wall of the adsorption device body, a filter plate is provided below the receiving frame, a filter net is provided at the inner bottom of the filter plate, and a spray mechanism is provided on the top of the adsorption device body.

[0006] By adopting the above technical solution, the adhesion and accumulation of aerosol on the inner wall may cause corrosion and damage to the device. The scraping action of the scraper can effectively extend the service life of the device and reduce the frequency of maintenance and replacement. The design of the scraper makes cleaning the inner wall simple and convenient.

[0007] Furthermore, the scraper is arranged obliquely, and the outer surface of the scraper is in contact with the inner wall of the adsorption device body.

[0008] By adopting the above technical solution, the obliquely arranged scraper can contact the inner wall of the adsorption device body more comprehensively, ensuring that each area can be effectively scraped. This design enables the scraper to efficiently remove impurities, residues and aerosols on the inner wall and maintain the cleanliness of the inner wall.

[0009] Furthermore, a plurality of scrapers are provided, and the plurality of scrapers are arranged in an equidistant ring shape along the central axis of the transmission shaft.

[0010] By adopting the above technical solution, the inner walls of multiple scrapers are scraped evenly. This design avoids the situation where some areas are over-scraped while other areas are missed, thereby ensuring the overall cleanliness of the inner wall.

[0011] Furthermore, a fixing plate is fixedly connected to the support rod via bolts, and the fixing plate is a rectangular structure.

[0012] By adopting the above technical solution, the fixed plate is driven to rotate by a motor, which can effectively accelerate the flow of gas inside the device, thereby increasing the contact frequency between carbon dioxide and the ethanolamine aqueous solution. This accelerated stirring effect helps to promote the adsorption reaction between carbon dioxide and the ethanolamine aqueous solution, thereby improving the reaction rate and efficiency.

[0013] Furthermore, the scraper, support rod and fixing plate are all made of stainless steel.

[0014] By adopting the above technical solution, stainless steel is a material with excellent corrosion resistance, which can maintain the stability of its structure and performance in a variety of environments. During the carbon capture and carbon dioxide separation and recovery process, the scraper, support rod and fixed plate may be exposed to corrosive media, such as acidic or alkaline solutions. The use of stainless steel can ensure that these components can operate stably for a long time in a corrosive environment, extend their service life, and have high strength and rigidity, and can withstand greater mechanical stress and loads.

[0015] Furthermore, a plurality of through holes are provided on the inner bottom of the receiving frame, and the plurality of through holes are arranged in an equidistant ring shape along the central axis of the receiving frame.

[0016] By adopting the above technical solution, more aerosols can be effectively collected and guided into the receiving frame. This design improves the aerosol collection efficiency and reduces the residence time of the aerosol in the device.

[0017] Furthermore, the filter screen is a steel wire screen with fine holes, and the filter plate is fixedly connected to the inside of the adsorption device body through a support block.

[0018] By adopting the above technical solution, the fine-pore steel wire mesh filter can effectively filter out tiny particles and aerosols in the gas, ensuring the purity of the ethanolamine aqueous solution. This high-efficiency filtration capability helps to improve the efficiency and accuracy of subsequent adsorption reactions.

[0019] Furthermore, a manhole is provided on one side of the adsorption device body, and a liquid infusion tube is provided at the bottom end of the adsorption device body.

[0020] By adopting the above technical solution, the setting of the population allows the staff to easily enter the main body of the adsorption device for operation and maintenance. This design provides a convenient maintenance channel, facilitates regular inspection, repair and replacement of parts of the device, and reduces the difficulty and cost of maintenance.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] 1. The utility model uses a cleaning mechanism. During the adsorption reaction, the aerosol formed by the combination of ethanolamine and carbon dioxide may adhere and accumulate on the inner wall. The scraping action of the scraper effectively prevents the aerosol from adhering to the inner wall, ensuring the cleanliness of the inner wall. The scraper is arranged obliquely, and can guide the scraped aerosol to the inside of the receiving frame. This design enables the aerosol to be collected in a centralized manner, which is convenient for subsequent treatment and management. Maintaining the cleanliness of the inner wall can avoid the accumulation of aerosol on the inner wall, thereby reducing the frequency of cleaning the inner wall of the adsorption device body, which helps to improve the efficiency of the device, allowing the gas to pass through the adsorption device body more smoothly, reducing the difficulty and cost of manual cleaning, and improving the convenience of operation;

[0023] 2. The utility model provides through holes and filter screens, and the filter screens can effectively filter out tiny particles, impurities and aerosols in ethanolamine aqueous solutions to ensure the purity and quality of the substance. It can prevent these impurities from entering subsequent processing procedures, thereby preventing damage or blockage to internal components of the device and ensuring the normal operation of the device. At the same time, the receiving groove collects aerosols on the inner wall surface, thereby improving the centralized collection of aerosols and facilitating the collection and treatment of aerosols. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the scraper of the utility model;

[0027] Figure 4 It is a cross-sectional structural schematic diagram of the utility model.

[0028] In the figure: 1. adsorption device body; 2. input port; 3. output port; 4. motor; 5. transmission shaft; 6. cleaning mechanism; 601. scraper; 602. support rod; 603. fixing plate; 701. receiving frame; 702. through hole; 801. filter disc; 802. support block; 803. filter net; 9. spray mechanism; 10. infusion tube; 11. population. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] Embodiment 1:

[0032] A carbon dioxide separation and recovery device for carbon capture, such as Figure 1-Figure 4 As shown, it includes an adsorption device body 1, an input port 2, an output port 3 and a motor 4. A transmission shaft 5 is provided at the output end of the motor 4, and a cleaning mechanism 6 is provided on the outer side of the transmission shaft 5. The cleaning mechanism 6 includes a scraper 601, and the scraper 601 is fixedly connected to the transmission shaft 5 through a support rod 602. A receiving frame 701 is provided below the inner wall of the adsorption device body 1, and a filter disc 801 is provided below the receiving frame 701. A filter screen 803 is provided at the inner bottom of the filter disc 801, and a spray mechanism 9 is provided on the top of the adsorption device body 1. The adhesion and accumulation of aerosols on the inner wall may cause corrosion and damage to the device. The scraping effect of the scraper 601 can effectively extend the service life of the device and reduce the frequency of maintenance and replacement. The design of the scraper 601 makes it simple and convenient to clean the inner wall. The staff can start the motor 4 to drive the transmission shaft 5 to rotate, thereby driving the scraper 601 to automatically scrape the inner wall. This design reduces the difficulty and cost of manual cleaning and improves the convenience of operation.

[0033] See also Figure 2 , Figure 3The scraper 601 is arranged obliquely, and the outer surface of the scraper 601 is in contact with the inner wall of the adsorption device body 1. The obliquely arranged scraper 601 can contact the inner wall of the adsorption device body 1 more comprehensively, ensuring that each area can be effectively scraped. This design enables the scraper 601 to efficiently remove impurities, residues and aerosols on the inner wall and maintain the cleanliness of the inner wall. At the same time, the scraper 601 has a guiding function and can guide the scraped aerosol to the inside of the receiving frame 701. This design enables the aerosol to be collected in a centralized manner, which is convenient for subsequent processing and management.

[0034] See also Figure 2 , Figure 3 There are multiple scrapers 601, which are arranged in an equidistant ring along the central axis of the transmission shaft 5. The multiple scrapers 601 ensure that the inner wall of the adsorption device body 1 is evenly scraped. This design avoids the situation where some areas are over-scraped and other areas are missed, thereby ensuring the overall cleanliness of the inner wall. Since there are multiple scrapers 601 working at the same time, the scraping efficiency is significantly improved. Compared with a single scraper 601, multiple scrapers 601 can remove impurities, residues and aerosols on the inner wall more quickly, thereby improving the processing capacity of the device.

[0035] See also Figure 2 , Figure 3 A fixing plate 603 is fixedly connected to the support rod 602 by bolts. The fixing plate 603 is a rectangular structure. The fixing plate 603 is driven to rotate by the motor 4, which can effectively accelerate the flow of gas inside the device, thereby increasing the contact frequency between carbon dioxide and the ethanolamine aqueous solution. This accelerated stirring effect helps to promote the adsorption reaction between carbon dioxide and the ethanolamine aqueous solution, improves the reaction rate and efficiency, and helps to ensure sufficient contact between carbon dioxide and the ethanolamine aqueous solution, thereby improving the uniformity and consistency of the reaction and improving the utilization rate of the equipment.

[0036] See also Figure 2 , Figure 3The scraper 601, the support rod 602, and the fixed plate 603 are all made of stainless steel. Stainless steel is a material with excellent corrosion resistance and can maintain the stability of its structure and performance in a variety of environments. During the carbon capture and carbon dioxide separation and recovery process, the scraper 601, the support rod 602, and the fixed plate 603 may be exposed to corrosive media, such as acidic or alkaline solutions. The use of stainless steel can ensure that these components can operate stably for a long time in a corrosive environment and extend their service life. It has high strength and rigidity and can withstand greater mechanical stress and load. In the process of the scraper 601 scraping the inner wall, the support rod 602 supporting the fixed plate 603, and the fixed plate 603 rotating with the motor 4, the stainless steel material can ensure that these components have sufficient strength and stability to avoid affecting the normal operation of the device due to deformation or damage.

[0037] Embodiment 2:

[0038] See also Figure 2 , Figure 4 A plurality of through holes 702 are provided at the inner bottom of the receiving frame 701, and the plurality of through holes 702 are arranged in an equidistant ring shape along the central axis of the receiving frame 701, so that more aerosols can be effectively collected and guided into the receiving frame 701. This design improves the aerosol collection efficiency and reduces the aerosol residence time in the device. By utilizing the setting of the through holes 702, the aerosol can be retained in the receiving frame 701, and the remaining ethanolamine aqueous solution can be filtered out through the through holes 702, so as to facilitate the subsequent collection and treatment of the aerosol.

[0039] See also Figure 2 , Figure 4 The filter 803 is a steel wire mesh with fine holes. The filter plate 801 is fixedly connected to the inside of the adsorption device body 1 through the support block 802. The steel wire mesh filter 803 with fine holes can effectively filter out tiny particles and aerosols in the gas to ensure the purity of the ethanolamine aqueous solution. This high-efficiency filtering ability helps to improve the efficiency and accuracy of subsequent adsorption reactions. Since the filter 803 adopts a fine hole design, it increases the gas flow area while ensuring the filtering effect. This design helps to reduce the pressure drop of the gas when passing through the filter device and improves the gas flow efficiency.

[0040] See also Figure 1 , Figure 2A manhole 11 is provided on one side of the adsorption device body 1, and an infusion tube 10 is provided at the bottom end of the adsorption device body 1. The setting of the manhole 11 allows the staff to easily enter the adsorption device body 1 for operation and maintenance. This design provides a convenient maintenance channel, which is convenient for regular inspection, maintenance and replacement of parts of the device, reduces the difficulty and cost of maintenance, and cleans the aerosol inside the receiving frame 701 and the filter disc 801 through the manhole 11, thereby improving the convenience of aerosol cleaning.

[0041] The implementation principle of the utility model is as follows: first, the gas containing carbon dioxide is transmitted into the interior of the adsorption device body 1 through the input port 2, and the spray mechanism 9 and the motor 4 are started at the same time. At this time, the motor 4 drives the transmission shaft 5 to rotate, and uses the support rod 602 to drive the scraper 601 to rotate, and the scraper 601 scrapes the inner wall of the adsorption device body 1. After the gas containing carbon dioxide enters the interior of the adsorption device body 1, due to the continuous infusion of the gas, the gas moves toward the output port 3. In this process, the carbon dioxide in the gas reacts with the ethanolamine aqueous solution sprayed by the spray mechanism 9 to reduce the carbon dioxide content in the gas. Then, the gas after adsorption is transported to the next process through the output port 3. The ethanolamine aqueous solution after adsorption falls into the interior of the filter disc 801, and the filter net 803 is used to filter the aerosol generated after the reaction. After that, the ethanolamine aqueous solution falls into the infusion tube 10 through the filter net 803 and is collected and processed in a centralized manner.

[0042] During the adsorption reaction, the hydrogen atoms in ethanolamine combine with carbon dioxide to form ethanolamine derivatives. Since the volume of ethanolamine derivatives is much larger than that of carbon dioxide in aqueous solution, aerosols are formed. The scraper 601 scrapes the inner wall of the adsorption device body 1 to prevent the aerosols from adhering to the inner wall of the adsorption device body 1. At the same time, the aerosols of this part are scraped by the oblique scraper 601 and collected in the receiving frame 701 to keep the cleanliness of the inner wall of the adsorption device body 1. At the same time, the filter net 803 is used to filter and collect the remaining aerosols generated after the reaction, so as to improve the convenience of centralized collection of aerosols. Afterwards, the aerosols are cleaned through the population 11 to prevent the aerosols from blocking the infusion tube 10 and preventing the aerosols from flowing to the next process, thereby improving the continuous stability of the device.

[0043] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0044] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A carbon dioxide separation and recovery device for carbon capture, characterized in that: The invention comprises an adsorption device body (1), an input port (2), an output port (3) and a motor (4); a transmission shaft (5) is arranged at the output end of the motor (4); a cleaning mechanism (6) is arranged on the outer side of the transmission shaft (5); the cleaning mechanism (6) comprises a scraper (601); the scraper (601) is fixedly connected to the transmission shaft (5) via a support rod (602); a receiving frame (701) is arranged below the inner wall of the adsorption device body (1); a filter disc (801) is arranged below the receiving frame (701); a filter net (803) is arranged at the inner bottom of the filter disc (801); and a spray mechanism (9) is arranged on the top of the adsorption device body (1).

2. The carbon dioxide separation and recovery device for carbon capture according to claim 1, characterized in that: The scraper (601) is arranged obliquely, and the outer surface of the scraper (601) is in contact with the inner wall of the adsorption device body (1).

3. The carbon dioxide separation and recovery device for carbon capture according to claim 1, characterized in that: A plurality of scrapers (601) are provided, and the plurality of scrapers (601) are arranged in an equidistant ring shape along the central axis of the transmission shaft (5).

4. The carbon dioxide separation and recovery device for carbon capture according to claim 1, characterized in that: A fixing plate (603) is fixedly connected to the support rod (602) via bolts, and the fixing plate (603) is a rectangular structure.

5. The carbon dioxide separation and recovery device for carbon capture according to claim 4, characterized in that: The scraper (601), the support rod (602) and the fixing plate (603) are all made of stainless steel.

6. The carbon dioxide separation and recovery device for carbon capture according to claim 1, characterized in that: The inner bottom of the receiving frame (701) is provided with a plurality of through holes (702), and the plurality of through holes (702) are arranged in an equidistant annular pattern along the central axis of the receiving frame (701).

7. The carbon dioxide separation and recovery device for carbon capture according to claim 1, characterized in that: The filter screen (803) is a steel wire screen with fine holes, and the filter plate (801) is fixedly connected to the inside of the adsorption device body (1) via a support block (802).

8. The carbon dioxide separation and recovery device for carbon capture according to claim 1, characterized in that: A manhole (11) is provided on one side of the adsorption device body (1), and a liquid infusion tube (10) is provided at the bottom end of the adsorption device body (1).

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