A bubbling carbon dioxide capture apparatus

Abstract

The utility model discloses a kind of bubbling carbon dioxide capture equipment, including absorption tower, absorption tower internal cavity is used to store absorption liquid, further including motor, motor fixed mounting is in the upper portion of absorption tower;Rotary pipe, rotary pipe rotation is installed in absorption tower inside, and motor output end is fixedly connected rotary pipe, rotary pipe is used to connect external gas source;Bubble disc, bubble disc rotation is installed in absorption tower bottom, and rotary pipe lower part is fixedly connected bubble disc, bubble disc receives the gas transmission of rotary pipe and is driven to do rotating bubble action by motor.The utility model utilizes motor to drive tower bottom bubble disc rotation, make gas source release bubble form spiral ascending path in absorption liquid, significantly extend the travel and residence time of bubble in liquid, increase gas-liquid contact area and reaction opportunity, to improve carbon dioxide absorption efficiency;The structure can realize long path capture under the condition of limited tower height, equipment is compact and efficient.

Description

Technical Field

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

[0002] Bubble-type carbon dioxide capture is a technology that utilizes the principle of gas-liquid contact to efficiently absorb CO2. Carbon dioxide-containing gas is introduced from the bottom of an absorption tower containing an absorbent such as sodium hydroxide solution or amine solution. A large number of uniform and fine bubbles are formed through a gas distribution device, increasing the gas-liquid contact area and residence time, allowing the carbon dioxide to fully dissolve and react chemically or physically with the absorbent, thereby achieving efficient capture.

[0003] However, existing technologies have some problems: in traditional bubbling carbon dioxide capture devices, bubbles rise vertically after being formed from the bottom by the gas distribution device. The length of the bubble's transmission path in the absorbent is directly limited by the height of the device, resulting in insufficient contact time between the bubble and the absorbent and a limited mass transfer area, thus reducing the carbon dioxide absorption efficiency. Therefore, we propose a bubbling carbon dioxide capture device. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a bubble-type carbon dioxide capture device.

[0005] This invention is implemented as follows: a bubbling carbon dioxide capture device includes an absorption tower with an internal cavity for storing absorbent liquid, a motor fixedly installed on the upper part of the absorption tower, a rotating tube rotatably installed inside the absorption tower with the motor output fixedly connected to the rotating tube for connecting to an external gas source, and a bubbling disc rotatably installed at the bottom of the absorption tower with the lower part of the rotating tube fixedly connected to the bubbling disc. The bubbling disc receives the gas transmitted by the rotating tube and is driven by the motor to rotate and bubble, thereby forming a spiral bubble capture path inside the absorbent liquid inside the absorption tower.

[0006] As a preferred embodiment of this invention, an inlet pipe is fixedly installed on the upper part of the absorption tower, and the inlet pipe is used to connect the transmission pipeline of the absorption liquid source.

[0007] As a preferred embodiment of this invention, a water outlet pipe is fixedly installed at the lower part of the absorption tower, and the water outlet pipe is used to connect to the pipeline of the collection system.

[0008] As a preferred embodiment of this utility model, a support frame is fixedly installed on the upper part of the absorption tower, the motor is fixedly installed on the upper part of the support frame, and is rotatably connected to the rotating pipe inside the sleeve fixed on the upper part of the absorption tower. The air inlet pipe fixed on one side of the sleeve is connected to the air inlet groove opened on the upper part of the rotating pipe to realize the input of the air source.

[0009] In a preferred embodiment of this invention, the bubbling disc includes a turntable fixed to the lower part of the rotating tube, a first air ring fixedly connected to the outside of the turntable, a second air ring fixedly connected to the outside of the first air ring, and several nozzles respectively connected and passing through the upper parts of the first air ring and the second air ring.

[0010] In a preferred embodiment of the present invention, the upper parts of the first air ring and the second air ring are fixedly connected by a plurality of first baffles, and the upper part of the second air ring is fixedly connected with a plurality of second baffles.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention achieves a spiral upward path for bubbles in the absorbent liquid by setting a rotatable bubble plate inside the absorption tower, thereby effectively extending the transmission distance of bubbles in the liquid and improving the gas-liquid contact efficiency. Specifically, the absorption tower stores a certain height of absorbent liquid, the motor is fixedly installed at the top of the absorption tower, and its output end is fixedly connected to a vertically set rotating pipe. The lower end of the rotating pipe is connected to the bubble plate located at the bottom of the tower. The gas source is delivered to the bubbling plate via a transfer pipe. Driven by a motor, the bubbling plate rotates around its central axis, causing the gas to be evenly released from the plate surface, forming tiny bubbles. As the bubbling plate continuously changes the position of the bubble release point during rotation, the bubbles rise along an approximately spiral path within the tower, rather than a single vertical path. This increases the residence time and path length of the bubbles in the absorbent, significantly improving the absorption and capture efficiency of carbon dioxide. At the same time, the spiral path bubble rising pattern also reduces bubble coalescence and premature escape, maintaining the mass transfer area. This design achieves long-path gas-liquid contact without increasing the height of the absorption tower, balancing equipment compactness and high-efficiency capture performance, making it particularly suitable for carbon dioxide capture needs in space-constrained industrial settings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the absorption tower provided in this embodiment of the utility model; Figure 3 This is provided by the embodiment of the present utility model. Figure 2 Schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the bubble tray structure provided in an embodiment of the present invention.

[0013] In the diagram: 1. Absorption tower; 2. Inlet pipe; 3. Outlet pipe; 4. Support frame; 5. Motor; 6. Rotary pipe; 7. Casing; 8. Air inlet pipe; 9. Bubble tray; 10. Air inlet trough; 901, turntable; 902, first air ring; 903, nozzle; 904, second air ring; 905, first spoiler; 906, second spoiler. Detailed Implementation

[0014] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0015] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0016] like Figures 1 to 4 As shown in the figure, the present invention provides a bubbling carbon dioxide capture device, including an absorption tower 1, the internal cavity of which is used to store absorbent liquid, a motor 5, which is fixedly installed on the upper part of the absorption tower 1; a rotating pipe 6, which is rotatably installed inside the absorption tower 1, and the output end of the motor 5 is fixedly connected to the rotating pipe 6, which is used to connect to an external gas source; and a bubbling plate 9, which is rotatably installed at the bottom of the absorption tower 1, and the lower part of the rotating pipe 6 is fixedly connected to the bubbling plate 9. The bubbling plate 9 receives the gas transmitted by the rotating pipe 6 and is driven by the motor 5 to perform a rotating bubbling action, thereby forming a spiral bubble capture path inside the absorbent liquid inside the absorption tower 1.

[0017] The above-mentioned bubbling carbon dioxide capture device, by setting a rotatable bubble plate 9 inside the absorption tower 1, realizes the spiral upward path of bubbles in the absorption liquid, thereby effectively extending the transmission path of bubbles in the liquid and improving the gas-liquid contact efficiency. Specifically, the absorption tower 1 contains a certain height of absorbent liquid. The motor 5 is fixedly installed on the upper part of the absorption tower 1, and its output end is fixedly connected to the vertically arranged rotating pipe 6. The lower end of the rotating pipe 6 is connected to the bubbling plate 9 located at the bottom of the tower. The gas source is transported to the bubbling plate 9 through the rotating pipe 6. The bubbling plate 9 rotates around the central axis under the drive of the motor 5, causing the gas to be evenly released from the plate surface to form fine bubbles. As the bubbling plate 9 rotates, it continuously changes the position of the bubble release point, causing the bubbles to form an approximately spiral path along the inside of the tower as they rise, rather than a single vertical path. This increases the residence time and path length of the bubbles in the absorbent, significantly improving the absorption and capture efficiency of carbon dioxide.

[0018] In this embodiment, an inlet pipe 2 is fixedly installed on the upper part of the absorption tower 1. The inlet pipe 2 is used to connect the transmission pipeline of the absorption liquid source. An outlet pipe 3 is fixedly installed on the lower part of the absorption tower 1. The outlet pipe 3 is used to connect the pipeline of the collection system. A support frame 4 is fixedly installed on the upper part of the absorption tower 1. A motor 5 is fixedly installed on the upper part of the support frame 4 and is rotatably connected to the rotating pipe 6 inside the sleeve 7 fixed on the upper part of the absorption tower 1. An air inlet pipe 8 fixed on one side of the sleeve 7 is connected to the air inlet slot 10 opened on the upper part of the rotating pipe 6 to realize the input of the air source.

[0019] By setting an inlet pipe 2 at the top of the absorption tower 1 and an outlet pipe 3 at the bottom, the continuous supply and discharge of the absorbent liquid can be achieved, ensuring the stability of the liquid level in the tower and the recycling of the absorbent liquid.

[0020] The inlet pipe 2 is connected to the transmission pipeline of the external absorbent liquid source to replenish the tower with fresh or regenerated absorbent liquid; the outlet pipe 3 is connected to the pipeline of the collection system to export the reacted absorbent liquid for treatment.

[0021] A support frame 4 is fixed on the upper part of the absorption tower 1. A motor 5 is installed on the support frame 4. The output end of the motor 5 is connected to a vertically arranged rotating pipe 6. The upper part of the rotating pipe 6 is rotatably connected to the fixed part of the absorption tower 1 through a sleeve 7 to ensure that the rotation is kept sealed.

[0022] An air inlet pipe 8 is provided on one side of the casing 7. The air inlet pipe 8 is connected to the air inlet groove 10 on the upper part of the rotating pipe 6, so that the external air source can smoothly enter the tower and be transmitted to the bubble plate 9 when the motor 5 drives the rotating pipe 6 to rotate. In this way, the air source and the absorbent liquid form an efficient contact path in the tower. Combined with the liquid circulation, continuous and efficient capture of carbon dioxide is achieved.

[0023] In this embodiment, the bubbling plate 9 includes a turntable 901 fixed to the lower part of the rotating pipe 6. A first air ring 902 is fixedly connected to the outside of the turntable 901. A second air ring 904 is fixedly connected to the outside of the first air ring 902. A plurality of nozzles 903 are respectively connected and penetrated to the upper parts of the first air ring 902 and the second air ring 904. The upper parts of the first air ring 902 and the second air ring 904 are fixedly connected by a plurality of first baffles 905. A plurality of second baffles 906 are fixedly connected to the upper part of the second air ring 904.

[0024] The bubble plate 9 consists of a turntable 901 fixed at the bottom of the rotating tube 6 and a first air ring 902 and a second air ring 904 connected to the outside in sequence. After the air source enters through the rotating tube 6, it is delivered to the two air rings respectively, and is evenly released through several nozzles 903 distributed on the air rings to form fine bubbles. The first gas ring 902 and the second gas ring 904 are fixedly connected by a number of first baffles 905. The upper part of the second gas ring 904 is provided with a number of second baffles 906. During the release and rise of bubbles, the baffles can disperse the bubble flow, change its rising direction, and cause the bubble path to deflect, thereby extending the bubble's journey in the absorbent liquid and increasing the gas-liquid contact area, thus improving the carbon dioxide absorption efficiency and mass transfer performance. The working principle of this utility model: In operation, a rotatable bubble plate 9 is installed inside the absorption tower 1 to achieve a spiral upward path for bubbles in the absorbent liquid, thereby effectively extending the bubble's transport distance in the liquid and improving gas-liquid contact efficiency. Specifically, the absorption tower 1 stores absorbent liquid to a certain height. The motor 5 is fixedly installed on the upper part of the absorption tower 1, and its output end is fixedly connected to a vertically arranged rotating pipe 6. The lower end of the rotating pipe 6 is connected to the bubble plate 9 located at the bottom of the tower. The gas source is transported to the bubble plate 9 through the rotating pipe 6. The bubble plate 9 rotates around its central axis under the drive of the motor 5, causing the gas to be evenly released from the plate surface to form fine bubbles. As the bubble plate 9 continuously changes the position of the bubble release point during rotation, the bubbles form an approximately spiral path along the inside of the tower when rising, rather than a single vertical path. This increases the residence time and path length of the bubbles in the absorbent liquid, significantly improving the absorption and capture efficiency of carbon dioxide. At the same time, the spiral path bubble rising mode can also reduce the phenomenon of bubble coalescence and premature escape, thus maintaining the mass transfer area.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bubbling carbon dioxide capture device, comprising an absorption tower (1), wherein the internal cavity of the absorption tower (1) is used to store an absorbent liquid, characterized in that, Also includes: Motor (5), the motor (5) is fixedly installed on the upper part of the absorption tower (1); Rotary pipe (6), which is rotatably installed inside the absorption tower (1), and the output end of the motor (5) is fixedly connected to the rotary pipe (6), which is used to connect to an external gas source; Bubble plate (9) is rotatably installed at the bottom of the absorption tower (1), and the lower part of the rotating pipe (6) is fixedly connected to the bubble plate (9). The bubble plate (9) receives the gas transmitted by the rotating pipe (6) and is driven by the motor (5) to rotate and bubble, thereby forming a spiral bubble collection path inside the absorption liquid inside the absorption tower (1).

2. The bubbling carbon dioxide capture device as described in claim 1, characterized in that: The absorption tower (1) is fixedly equipped with a water inlet pipe (2), which is used to connect the transmission pipeline of the absorption liquid source.

3. The bubbling carbon dioxide capture device as described in claim 1, characterized in that: The absorption tower (1) is fixedly installed with a water outlet pipe (3) at the bottom, which is used to connect the pipeline of the collection system.

4. The bubbling carbon dioxide capture device as described in claim 1, characterized in that: The absorption tower (1) is fixedly installed with a support frame (4), the motor (5) is fixedly installed on the support frame (4), and is rotatably connected to the rotating pipe (6) inside the sleeve (7) fixed on the upper part of the absorption tower (1). The air inlet pipe (8) fixed on one side of the sleeve (7) is connected to the air inlet groove (10) opened on the upper part of the rotating pipe (6) to realize the input of the air source.

5. The bubbling carbon dioxide capture device as described in claim 1, characterized in that: The bubbling plate (9) includes a turntable (901) fixed at the lower part of the rotating tube (6). A first air ring (902) is fixedly connected to the outside of the turntable (901). A second air ring (904) is fixedly connected to the outside of the first air ring (902). Several nozzles (903) are respectively connected and penetrated to the upper part of the first air ring (902) and the second air ring (904).

6. The bubbling carbon dioxide capture device as described in claim 5, characterized in that: The upper parts of the first air ring (902) and the second air ring (904) are fixedly connected by a number of first spoilers (905), and the upper part of the second air ring (904) is fixedly connected with a number of second spoilers (906).

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