A carbon dioxide extraction device that is easy to use

Abstract

The utility model relates to a carbon dioxide extraction device convenient to use belongs to gas separation and purification technical field. Mainly include casing, adsorption subassembly, baffle, filter component, micro fan and controller, the casing is divided into adsorption cavity and gas storage cavity in the compartment, and adsorption subassembly prolongs gas flow path through the synergistic effect of flow guide cylinder, spiral flow guide plate and heat conduction cylinder, and the adsorption efficiency is promoted, and filter component filters the impurity gradually, and the automatic cleaning function is realized to cleaning mechanism, and the manual intervention is reduced. The utility model improves the contact time and utilization rate of gas and adsorption material, ensures efficient purification carbon dioxide, reduces the maintenance complexity simultaneously, guarantees long -term stable operation of device.

Description

Technical Field

[0001] This utility model belongs to the field of gas separation and purification technology, specifically relating to a user-friendly carbon dioxide extraction device. Background Technology

[0002] With the intensification of the greenhouse effect and the continuous growth in demand for carbon capture, carbon dioxide extraction technology is being used more and more widely in fields such as industrial exhaust gas treatment, air purification in confined spaces, and monitoring of small-scale fermentation processes. These applications place higher demands on the efficiency, reliability, and ease of operation of carbon dioxide extraction devices.

[0003] However, traditional carbon dioxide adsorption devices mostly adopt a fixed bed design, and the airflow path of the conventional filled bed is single, resulting in low utilization of adsorption materials and insufficient contact time between gas and adsorbent, which affects the extraction efficiency and effect of carbon dioxide. In addition, traditional devices are not convenient to maintain. The cleaning process is complicated and inconvenient, often requiring disassembly of pipelines or even damage to the sealing structure. This not only increases the difficulty of operation, but may also lead to a decrease in the sealing performance of the device, further affecting the long-term stable operation of the equipment. Utility Model Content

[0004] To overcome the problems of single airflow path, low utilization rate of adsorbent material, insufficient contact time between gas and adsorbent, and inconvenient cleaning and maintenance caused by the fixed bed design in traditional carbon dioxide adsorption devices, this utility model provides an easy-to-use carbon dioxide extraction device. Through the synergistic effect of the guide tube and the spiral guide plate, the gas flow path is effectively extended, the contact time between gas and adsorbent material is increased, and the adsorption efficiency and material utilization rate are further improved. At the same time, the automatic cleaning function of the filter components is realized by the cleaning mechanism, which reduces manual intervention, reduces maintenance complexity, and ensures long-term efficient operation of the device.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A user-friendly carbon dioxide extraction device mainly includes a shell, an adsorption component, a partition, a filter component, a micro fan, and a controller. The shell has a double-layer heat-insulating structure, with a sealing cover connected to the top via a flange. The interior is divided into two independent chambers by a partition: an adsorption chamber and a gas storage chamber. The gas storage chamber is located below the adsorption chamber and has an outlet pipe with a solenoid valve at its bottom. A vent pipe with a solenoid valve is installed at the center of the partition. An exhaust pipe communicating with the adsorption chamber is provided on the middle side wall of the shell, and a solenoid valve is installed on the exhaust pipe. An inlet pipe is provided on the top side wall of the shell, and a flow guide hood is installed at the end of the inlet pipe. A micro fan is embedded inside the flow guide hood. The device is installed on the outer wall of the housing and electrically connected to a micro fan and a solenoid valve. The adsorption assembly is installed inside the adsorption chamber and includes a guide tube, a spiral guide plate, a heat-conducting cylinder, a heating element, and a reversible chemical adsorption material. The top of the guide tube is sealed to an annular support plate on the inner wall of the housing via a flange, and the bottom is evenly provided with ventilation holes. The inner wall of the guide tube is provided with a spiral guide plate, which is sealed to the heat-conducting cylinder to form a spiral guide groove. The groove is filled with granular reversible chemical adsorption material. The inner wall of the heat-conducting cylinder is embedded with a heating element and a temperature sensor, which are electrically connected to the controller. The filter assembly is installed inside the adsorption chamber and located at the bottom of the guide tube. A cleaning mechanism for cleaning the filter assembly is installed on the guide tube.

[0006] The filter assembly includes a pre-filter, an activated carbon filter element, and a high-efficiency molecular sieve layer. The high-efficiency molecular sieve layer is located above the partition and installed on the inner wall of the housing. The activated carbon filter element is installed on top of the molecular sieve layer. The pre-filter is installed on top of the activated carbon filter element and forms a cylindrical cavity between it and the bottom of the guide tube.

[0007] The cleaning mechanism includes a rotating shaft, fan blades, and a cleaning brush. The top end of the rotating shaft passes through the top of the heat-conducting cylinder and is fixedly connected to the fan blades. The bottom end passes through the bottom of the flow guide cylinder and is fixedly connected to the cleaning brush. The bristles on the bottom surface of the cleaning brush are in contact with the surface of the primary filter.

[0008] The air inlet of the hood is equipped with a filter screen made of stainless steel, with a mesh diameter ranging from 0.5 mm to 1 mm.

[0009] The beneficial effects of this utility model are:

[0010] This invention effectively extends the gas flow path within the adsorption chamber by combining the flow guide tube, spiral flow guide plate, and heat conduction tube with the temperature control function of reversible chemical adsorption material and heating element. This increases the contact time and efficiency between the gas and the adsorption material. Simultaneously, impurities are removed through the built-in filter assembly, further improving gas purity. In addition, a self-cleaning function is achieved through a cleaning mechanism, reducing the frequency of manual maintenance, lowering operational complexity, and ensuring long-term stable operation of the device. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a cross-sectional view of the internal structure of this utility model.

[0013] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0014] Figure 4 This is an exploded view of the adsorption and filtration components.

[0015] The attached diagram is labeled as follows: 1. Shell; 2. Adsorption assembly; 3. Partition; 4. Filter assembly; 5. Micro fan; 6. Controller; 7. Cleaning mechanism; 11. Sealing cover; 12. Inlet pipe; 13. Annular support plate; 14. Exhaust pipe; 15. Drainage hood; 16. Filter screen; 17. Outlet pipe; 21. Guide tube; 22. Spiral guide plate; 23. Heat conduction tube; 24. Heating element; 31. Vent pipe; 41. Primary filter screen; 42. Activated carbon filter element; 43. High-efficiency molecular sieve layer; 71. Rotating shaft; 72. Fan blade; 73. Cleaning brush. Detailed Implementation

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0017] This utility model discloses a user-friendly carbon dioxide extraction device. The device mainly includes a housing 1, an adsorption assembly 2, a partition 3, a filter assembly 4, a micro fan 5, and a controller 6. The housing 1 has a double-layer heat-insulating structure, with a sealing cover 11 connected to the top via a flange. The interior is divided into two independent chambers by the partition 3: an adsorption chamber and a gas storage chamber. The gas storage chamber is located below the adsorption chamber and has an outlet pipe 17 with a solenoid valve at its bottom for discharging treated gas. A vent pipe 31 with a solenoid valve is installed at the center of the partition 3 to control the gas flow from the adsorption chamber into the gas storage chamber. An exhaust pipe 14 communicating with the adsorption chamber is located on the middle side wall of the housing 1. An solenoid valve is installed on the exhaust pipe 14, which can be opened to discharge impurity gas when necessary. The top side wall of the housing 1 is provided with an air inlet pipe 12, and a flow guide hood 15 is installed at the end of the air inlet pipe 12. A micro fan 5 is embedded in the flow guide hood 15 to guide external gas into the adsorption chamber. The controller 6 is installed on the outer wall of the housing 1 and is electrically connected to the micro fan 5 and the solenoid valve to realize automatic control.

[0018] The adsorption assembly 2 is installed inside the adsorption chamber and includes a flow guide tube 21, a spiral guide plate 22, a heat conduction tube 23, a heating element 24, and a reversible chemisorption material. The top of the flow guide tube 21 is sealed to an annular support plate 13 on the inner wall of the housing 1 via a flange, and the bottom is uniformly provided with vent holes. The spiral guide plate 22 is installed on the inner wall of the flow guide tube 21, and the spiral guide plate 22 is sealed to the heat conduction tube 23 to form a spiral flow channel, which is filled with granular reversible chemisorption material. The inner wall of the heat conduction tube 23 is embedded with a heating element 24 and a temperature sensor. The heating element 24 and the temperature sensor are electrically connected to the controller 6 to adjust the working temperature of the adsorption material and monitor the real-time temperature. Through the above design, the flow guide tube 21, the spiral guide plate 22, and the heat conduction tube 23 work together to significantly extend the flow path of the gas in the adsorption chamber and increase the contact time and efficiency between the gas and the adsorption material. In addition, the adsorption assembly 2 is also equipped with a cleaning mechanism 7 for automatically cleaning the filter assembly 4, which can reduce manual intervention and reduce maintenance complexity.

[0019] The filter assembly 4 is installed inside the adsorption chamber and at the bottom of the guide tube 21. It includes a pre-filter 41, an activated carbon filter element 42, and a high-efficiency molecular sieve layer 43. The high-efficiency molecular sieve layer 43 is located above the partition 3 and installed on the inner wall of the housing 1. The activated carbon filter element 42 is installed on top of the sieve layer 43. The pre-filter 41 is installed on top of the activated carbon filter element 42 and forms a cylindrical cavity between it and the bottom of the guide tube 21. The three components work together to filter impurities in the gas step by step, ensuring the purification effect of carbon dioxide. The pre-filter 41 is mainly used to intercept large particulate impurities, the activated carbon filter element 42 can adsorb organic matter and odors in the gas, and the high-efficiency molecular sieve layer 43 further removes small particles and moisture, thereby improving the purity of carbon dioxide gas.

[0020] The cleaning mechanism 7 includes a rotating shaft 71, fan blades 72, and a cleaning brush 73. The top end of the rotating shaft 71 passes through the top of the heat-conducting cylinder 23 and is fixedly connected to the fan blades 72, while the bottom end passes through the bottom of the guide cylinder 21 and is fixedly connected to the cleaning brush 73. The bristles on the bottom surface of the cleaning brush 73 contact the surface of the primary filter 41. The bristles are made of conductive-grade polytetrafluoroethylene fiber, which has excellent wear resistance and antistatic properties, preventing impurities from accumulating and affecting gas flow. When the airflow passes through the guide shroud 15, the airflow drives the fan blades 72 to rotate, causing the rotating shaft 71 and the cleaning brush 73 to move synchronously, enabling the cleaning brush 73 to automatically clean the surface of the primary filter 41. This not only reduces the frequency of manual maintenance but also effectively improves the operational stability of the device.

[0021] The air inlet of the hood 15 is equipped with a filter screen 16 for filtering large particulate impurities. The filter screen 16 is made of stainless steel with a mesh diameter ranging from 0.5 mm to 1 mm. It is highly corrosion resistant and can effectively intercept large particulate impurities in the gas, protecting the normal operation of the subsequent adsorption component 2 and the filter component 4.

[0022] Work process:

[0023] In use, the micro fan 5 is first started by the controller 6, and the solenoid valve on the exhaust pipe 14 is opened. The gas containing carbon dioxide is introduced into the flow hood 15 through the intake pipe 12 by the micro fan 5. The filter screen 16 in the flow hood 15 initially intercepts large particulate impurities in the gas to prevent them from clogging subsequent components after entering the adsorption chamber. The gas then enters the guide tube 21 and flows along the spiral guide groove formed by the spiral guide plate 22. The design of the spiral guide plate 22 significantly extends the flow path of the gas in the adsorption chamber and increases the contact time between the gas and the particulate reversible chemical adsorption material. By extending the airflow path, the capture efficiency of the adsorption material for carbon dioxide is effectively improved.

[0024] When gas flows through the adsorption chamber, the fan blades 72 of the cleaning mechanism 7 are driven to rotate by the airflow, which drives the rotating shaft 71 and the cleaning brush 73 to move synchronously. The bristles of the cleaning brush 73 come into contact with the surface of the primary filter 41, and the mechanical energy generated by the airflow is used to automatically clean the surface of the primary filter 41. This process avoids the problem of filter clogging caused by the accumulation of impurities and ensures smooth gas flow. The cleaning brush 73 is made of conductive polytetrafluoroethylene fiber, which not only has good wear resistance, but also effectively releases static electricity to prevent fine particles from adhering to the filter screen, further improving the working stability of the filter assembly 4.

[0025] Once the adsorbent material reaches saturation, controller 6 closes the solenoid valve on exhaust pipe 14 and opens the solenoid valve on vent pipe 31. Then, heating element 24 is activated. Heating element 24, installed on the inner wall of heat-conducting cylinder 23, evenly transfers heat to the adsorbent material, promoting the desorption of carbon dioxide. A temperature sensor monitors the temperature change within the adsorption chamber in real time and feeds the signal back to controller 6. Controller 6 adjusts the working state of heating element 24 according to a preset temperature range to ensure a safe and controllable desorption process. The desorbed carbon dioxide gas is filtered through the filter assembly 4 in stages. The primary filter 41 intercepts residual large particles, the activated carbon filter 42 removes odors and harmful substances, and the high-efficiency molecular sieve layer 43 further purifies the gas. The purified carbon dioxide enters the storage chamber through vent pipe 31 for storage. After carbon dioxide extraction is complete, controller 6 stops heating element 24, allowing the temperature inside the adsorption chamber to gradually decrease, preparing for the next adsorption cycle. The solenoid valve on exhaust pipe 17 can be controlled by controller 6 to release the stored carbon dioxide at set times as needed.

[0026] In summary, this invention, through the synergistic effect of the flow guide tube 21, the spiral flow guide plate 22, and the heat-conducting tube 23, combined with the temperature control function of the granular reversible chemical adsorption material and the heating element 24, extends the flow path of the gas within the adsorption chamber, increasing the contact time and efficiency between the gas and the adsorption material. Simultaneously, the built-in filter assembly 4 achieves multi-stage impurity removal, improving gas purity; the cleaning mechanism 7, driven by airflow, achieves a self-cleaning function, reducing the frequency of manual maintenance, lowering operational complexity, and ensuring long-term stable operation of the device.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A user-friendly carbon dioxide extraction device, characterized in that: The easy-to-use carbon dioxide extraction device includes a shell (1), an adsorption assembly (2), a partition (3), a filter assembly (4), a micro fan (5), and a controller (6). The shell (1) has a double-layer heat insulation structure, and the top is connected to a sealing cover (11) by a flange. The interior is divided into two independent chambers by the partition (3), namely an adsorption chamber and a gas storage chamber. The gas storage chamber is located below the adsorption chamber, and the bottom is provided with an outlet pipe (17) with a solenoid valve. A vent pipe (31) with a solenoid valve is installed at the center of the partition (3). An exhaust pipe (14) communicating with the adsorption chamber is provided on the middle side wall of the shell (1). A solenoid valve is installed on the exhaust pipe (14). An air inlet pipe (12) is provided on the top side wall of the shell (1). A flow guide hood (15) is installed at the end of the air inlet pipe (12). A micro fan (5) is embedded in the flow guide hood (15). The controller (6) is installed on the outer wall of the shell (1) and is connected to the micro fan. The machine (5) and the solenoid valve are electrically connected. The adsorption assembly (2) is installed in the adsorption chamber and includes a guide tube (21), a spiral guide plate (22), a heat conduction tube (23), a heating element (24), and a reversible chemical adsorption material. The top of the guide tube (21) is sealed to the annular support plate (13) on the inner wall of the shell (1) through a flange. The bottom is evenly provided with ventilation holes. The inner wall of the guide tube (21) is provided with a spiral guide plate (22). The spiral guide plate (22) and the heat conduction tube (23) are sealed to form a spiral guide groove. The groove is filled with granular reversible chemical adsorption material. The inner wall of the heat conduction tube (23) is embedded with a heating element (24) and a temperature sensor. The heating element (24) and the temperature sensor are electrically connected to the controller (6). The filter assembly (4) is installed inside the adsorption chamber and located at the bottom of the guide tube (21). A cleaning mechanism (7) for cleaning the filter assembly (4) is installed on the guide tube (21).

2. The easy-to-use carbon dioxide extraction device as described in claim 1, characterized in that: The filter assembly (4) includes a primary filter (41), an activated carbon filter (42), and a high-efficiency molecular sieve layer (43). The high-efficiency molecular sieve layer (43) is located above the partition (3) and installed on the inner wall of the housing (1). The activated carbon filter (42) is installed on its top. The primary filter (41) is installed on the top of the activated carbon filter (42) and forms a cylindrical cavity between it and the bottom of the guide tube (21).

3. The easy-to-use carbon dioxide extraction device as described in claim 2, characterized in that: The cleaning mechanism (7) includes a rotating shaft (71), a fan blade (72) and a cleaning brush (73). The top end of the rotating shaft (71) passes through the top of the heat-conducting cylinder (23) and is fixedly connected to the fan blade (72). The bottom end passes through the bottom of the flow guide cylinder (21) and is fixedly connected to the cleaning brush (73). The bristles on the bottom surface of the cleaning brush (73) are in contact with the surface of the primary filter screen (41).

4. The easy-to-use carbon dioxide extraction device as described in claim 1 or 3, characterized in that: The air inlet of the hood (15) is equipped with a filter screen (16), which is made of stainless steel and has a mesh diameter ranging from 0.5 mm to 1 mm.

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