A carbon capture device

Abstract

The utility model discloses a kind of carbon capture devices, it is related to carbon dioxide capture technical field, including capture box, the one end thread connection of capture box inside has gas separation membrane, the other end of capture box is equipped with cover body, the one end of cover body top is equipped with air inlet pipe, the other end in cover body is provided with filter screen, the middle end in cover body is provided with fan assembly, the one end of filter screen close to fan assembly is provided with brush, swing mechanism is connected between fan assembly and brush.The utility model in the middle, setting fan assembly, swing mechanism and brush, realized the sustained, automatic cleaning of front filter screen, fundamentally solved the problem of filter screen blockage, reduced maintenance frequency and downtime, ensured the continuous stable operation of carbon capture process, the cooperation of fan assembly and arc filter screen also help to form turbulent flow in airflow, destroy the concentration boundary layer on the surface of gas separation membrane, to improve the mass transfer rate and capture efficiency of carbon dioxide.

Description

Technical Field

[0001] This utility model relates to the field of carbon dioxide capture technology, and in particular to a carbon capture device. Background Technology

[0002] Carbon dioxide mainly originates from the combustion of fossil fuels such as coal, oil, and natural gas. To achieve emission reduction targets and promote resource utilization, carbon capture technology can be used to separate and purify carbon dioxide from industrial emission sources, and then use it as a raw material to produce synthetic fuels, high-value chemicals, building materials, or apply it to fields such as enhanced oil recovery and the manufacture of carbonated beverages. Currently, common capture methods mainly include post-combustion capture and pre-combustion capture technologies.

[0003] In membrane separation technology for carbon capture, a pre-filter is usually installed before the membrane module to prevent dust and other particulate matter in the flue gas from contaminating and damaging the expensive gas separation membrane. However, in actual operation, the filter will become clogged due to the rapid accumulation of impurities, resulting in increased air intake resistance and reduced processing air volume, which ultimately affects the stable operation and efficiency of the entire carbon capture system. To solve this problem, frequent shutdowns are usually required to manually clean or replace the filter, which not only increases maintenance costs but also affects the continuity of production. Summary of the Invention

[0004] The purpose of this invention is to provide a carbon capture device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a carbon capture device, including a capture box, a gas separation membrane threadedly connected to one end of the capture box, a cover installed at the other end of the capture box, an air inlet pipe at one end of the top of the cover, a filter screen at the other end of the cover, a fan assembly at the middle of the cover, a brush at the end of the filter screen near the fan assembly, and a swing mechanism connecting the fan assembly and the brush.

[0006] Preferably, the fan assembly includes a motor mounted at one end of the housing, the output end of the motor being connected to a rotating rod, a disc being mounted at one end of the rotating rod extending into the housing, multiple fan blades being arranged in an array on the outer side of the disc, and a fixing rod being rotatably mounted on the outer side of the rotating rod, the top and bottom of the fixing rod being fixedly connected to the inner wall of the housing.

[0007] Preferably, the swing mechanism includes a support rod rotatably mounted inside the cover body, a transmission rod mounted at both the upper and lower ends of the support rod, a connecting rod connected to one end of the transmission rod, a sleeve sleeved on the outside of the connecting rod, a hinge block mounted on the outside of the sleeve, the hinge block rotatably mounted at one eccentric end of the disc, and the other end of the transmission rod and the brush fixedly connected by bolts.

[0008] Preferably, the bottom of the cover has a through hole located at the bottom of one end of the filter screen, and a sliding plate is installed at the bottom of the cover. The sliding plate is located at both ends of the through hole, and a dust collection box is slidably connected between the two sliding plates.

[0009] Preferably, the filter screen is arc-shaped and coincides with the center of the support rod, and the top of the cover has an insertion hole that matches the size of the filter screen.

[0010] Preferably, an exhaust pipe is installed at one end of the gas separation membrane, the exhaust pipe extends out of the other end of the collection box, and an outlet pipe is provided at the bottom of the collection box.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this application, a fan assembly, an oscillating mechanism, and a brush are provided to achieve continuous and automatic cleaning of the pre-filter, fundamentally solving the problem of filter clogging, significantly reducing maintenance frequency and downtime, and ensuring the continuous and stable operation of the carbon capture process.

[0012] 2. In this application, the fan assembly not only provides induced draft power, but its cooperation with the arc-shaped filter screen also helps to create turbulence in the airflow, disrupting the concentration boundary layer on the surface of the gas separation membrane, thereby improving the mass transfer rate and capture efficiency of carbon dioxide. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown; Figure 2 A cross-sectional view of the internal structure of the collection box and cover provided according to an embodiment of the present invention is shown; Figure 3 An enlarged cross-sectional view of the internal structure of the cover according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the fan assembly, oscillation mechanism, and brush connection structure provided according to an embodiment of the present invention is shown; Figure 5 The present invention provides an embodiment of the present invention. Figure 2 Enlarged view of the structure at point A in the middle.

[0014] Legend: 1. Collection box; 101. Exhaust pipe; 2. Cover; 201. Inlet pipe; 202. Through hole; 203. Insertion hole; 3. Gas separation membrane; 301. Exhaust pipe; 4. Filter screen; 5. Fan assembly; 6. Brush; 7. Swing mechanism; 8. Motor; 9. Rotating rod; 10. Disc; 11. Fan blade; 12. Fixing rod; 13. Support rod; 14. Transmission rod; 15. Bolt; 16. Connecting rod; 17. Sleeve; 18. Hinge block; 19. Slide plate; 20. Dust collection box. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a carbon capture device, including a capture box 1, a cover 2 installed at the other end of the capture box 1, and a gas separation membrane 3 threadedly connected to one end inside the capture box 1. The threaded connection allows the gas separation membrane 3 to be disassembled as an independent module, which greatly facilitates subsequent replacement and maintenance operations. An air inlet pipe 201 is provided at one end of the top of the cover 2 for introducing the raw material gas to be treated (such as industrial flue gas). An exhaust pipe 301 is installed at the end of the gas separation membrane 3 for discharging the permeated carbon dioxide-enriched product gas. The exhaust pipe 301 extends out of the other end of the collection box 1. An air outlet pipe 101 is provided at the bottom of the collection box 1 for discharging the intercepted tail gas that has not been permeated.

[0017] Specifically, such as Figure 2 and Figure 3 As shown, a filter screen 4 is provided at the other end of the inside of the cover 2. In order to adapt to the cleaning trajectory of the brush 6, the filter screen 4 is arc-shaped and coincides with the center of the support rod 13, so that the brush 6 can thoroughly clean the filter screen 4 when it swings. The top of the cover 2 is provided with an insertion hole 203 that matches the size of the filter screen 4. The filter screen 4 can be removed and replaced through the insertion hole 203.

[0018] Specifically, such as Figure 3As shown, a fan assembly 5 is provided in the middle of the inside of the cover 2. The fan assembly 5 includes a motor 8 installed at one end of the cover 2. The output end of the motor 8 is connected to a rotating rod 9. A disc 10 is installed at one end of the rotating rod 9 that extends into the inside of the cover 2. Multiple fan blades 11 are arranged in an array on the outer side of the disc 10. The rotation of the fan blades 11 generates suction force, which draws the raw material gas from the air inlet pipe 201 and pressurizes it to be sent into the collection box 1. A fixing rod 12 is rotatably installed on the outer side of the rotating rod 9. The top and bottom of the fixing rod 12 are fixedly connected to the inner wall of the cover 2. The fixing rod 12 is used to reinforce the rotating rod 9 and ensure that the rotating rod 9 rotates smoothly. In practice, in order to obtain sufficient swing stroke, the disk 10 needs to have a large rotation diameter. In order to reduce the resistance of the disk 10 when rotating in the airflow and the pollutants that may adhere to it, the side of the disk 10 facing the air intake pipe 201 is designed as a conical structure.

[0019] Specifically, such as Figure 2 , Figure 3 and Figure 4 As shown, a brush 6 is provided at one end of the filter screen 4 near the fan assembly 5. A swing mechanism 7 is connected between the fan assembly 5 and the brush 6. A single motor 8 is used as the power source to drive both the fan assembly 5 and the swing mechanism 7, which effectively simplifies the structure and reduces energy consumption. The swing mechanism 7 includes a support rod 13 rotatably installed inside the cover 2. A transmission rod 14 is installed at both the upper and lower ends of the support rod 13. A connecting rod 16 is connected to one end of the transmission rod 14. A sleeve 17 is sleeved on the outside of the connecting rod 16. A hinge block 18 is installed on the outside of the sleeve 17. The hinge block 18 is rotatably installed at one end of the disc 10 at an eccentric position. The other end of the transmission rod 14 is fixedly connected to the brush 6 by bolts 15. The connection method of bolts 15 facilitates the replacement of the brush 6 after long-term use due to wear. Therefore, when the motor 8 drives the disc 10 to rotate at a constant speed, the rotational motion of the disc 10 is converted into the reciprocating oscillation of the transmission rod 14 around the axis of the support rod 13 through the planar linkage mechanism composed of the hinge block 18, sleeve 17, connecting rod 16 and transmission rod 14, thereby driving the brush 6 to thoroughly clean the filter screen 4.

[0020] Specifically, such as Figure 5 As shown, in order to prevent the dust cleaned by the brush 6 from accumulating at the bottom of the filter screen 4 and affecting the filtration effect of the filter screen 4, a through hole 202 is provided at the bottom of the cover 2. The through hole 202 is located at the bottom of one end of the filter screen 4 so that the dust can be discharged through the hole under the action of gravity. A sliding plate 19 is installed at the bottom of the cover 2. The sliding plate 19 is set at both ends of the through hole 202. A dust collection box 20 is slidably connected between the two sliding plates 19. The top of the dust collection box 20 has an opening, which faces the through hole 202, and is used to receive and collect the falling dust. With the guidance of the sliding plate 19, the dust collection box 20 can be easily pulled out for cleaning.

[0021] As a preferred implementation scheme, such as Figure 1 As shown, a maintenance window can be opened on one side of the cover 2 and fixed with screws to facilitate the maintenance of components such as the swing mechanism 7 inside the cover 2. In order to ensure the airtightness of the device during operation and prevent gas leakage, sealing rings (such as rubber sealing rings) are provided at key positions such as the maintenance window, the joint between the dust collection box 20 and the slide plate 19, and the joint between the filter screen 4 and the socket 203.

[0022] In summary, the carbon capture device provided in this embodiment operates on the following principle: Airflow handling and filtration: The motor 8 drives the fan blade 11 to rotate, generating negative pressure to draw the raw material gas from the intake pipe 201. After the airflow is accelerated by the fan blade 11, it first impacts the arc-shaped filter screen 4. This design not only completes the filtration of particulate impurities, but its arc-shaped structure also helps to disrupt the laminar flow and generate turbulence, thereby enhancing gas disturbance.

[0023] Membrane separation process: The filtered and agitated clean gas enters the collection box 1 and comes into contact with the gas separation membrane 3. Under the pressure of the system, carbon dioxide preferentially permeates through the gas separation membrane 3 and is discharged through the exhaust pipe 301. The remaining gas that cannot permeate, mainly nitrogen and other gases, is discharged from the outlet pipe 101 as intercepted gas. The turbulence generated in the above steps can effectively destroy the concentration polarization of the concentration boundary layer on the surface of the gas separation membrane 3, thereby significantly improving the mass transfer efficiency and collection rate of carbon dioxide.

[0024] Self-cleaning and dust removal: While filtering, the motor 8 drives the swing mechanism 7 eccentrically through the disc 10, converting its rotational motion into the reciprocating swing of the brush 6 against the filter screen 4, thereby automatically and continuously scraping off the attached dust. The removed dust falls into the pull-out dust collection box 20 through the bottom through hole 202 under the action of gravity for centralized storage, which is convenient for regular cleaning.

[0025] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A carbon capture device, characterized in that, Includes a collection box (1), one end of which is threaded with a gas separation membrane (3), and the other end of which is a cover (2). An air inlet pipe (201) is provided at one end of the top of the cover (2), and a filter screen (4) is provided at the other end of the cover (2). A fan assembly (5) is provided in the middle of the cover (2), and a brush (6) is provided at the end of the filter screen (4) near the fan assembly (5). A swing mechanism (7) is connected between the fan assembly (5) and the brush (6).

2. The carbon capture device according to claim 1, characterized in that, The fan assembly (5) includes a motor (8) installed at one end of the cover (2). The output end of the motor (8) is connected to a rotating rod (9). A disc (10) is installed at one end of the rotating rod (9) that extends into the inside of the cover (2). Multiple fan blades (11) are arranged in an array on the outer side of the disc (10). A fixing rod (12) is rotatably installed on the outer side of the rotating rod (9). The top and bottom of the fixing rod (12) are fixedly connected to the inner wall of the cover (2).

3. The carbon capture device according to claim 1, characterized in that, The swing mechanism (7) includes a support rod (13) rotatably installed inside the cover (2). A transmission rod (14) is installed at both the upper and lower ends of the support rod (13). One end of the transmission rod (14) is connected to a connecting rod (16). A sleeve (17) is sleeved on the outside of the connecting rod (16). A hinge block (18) is installed on the outside of the sleeve (17). The hinge block (18) is rotatably installed at one eccentric end of the disc (10). The other end of the transmission rod (14) and the brush (6) are fixedly connected by bolts (15).

4. A carbon capture device according to claim 1, characterized in that, The bottom of the cover (2) is provided with a through hole (202), the through hole (202) is located at the bottom of one end of the filter screen (4), and a sliding plate (19) is installed at the bottom of the cover (2). The sliding plate (19) is set at both ends of the through hole (202), and a dust collection box (20) is slidably connected between the two ends of the sliding plate (19).

5. A carbon capture device according to claim 1, characterized in that, The filter screen (4) is arc-shaped and coincides with the center of the support rod (13). The top of the cover (2) is provided with an insertion hole (203) that matches the size of the filter screen (4).

6. A carbon capture device according to claim 1, characterized in that, The gas separation membrane (3) is equipped with an exhaust pipe (301) at one end, the exhaust pipe (301) extends out of the other end of the collection box (1), and the bottom of the collection box (1) is provided with an exhaust pipe (101).

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