Regeneration tower device and carbon dioxide capture system with same

Abstract

The invention provides a regeneration tower device and a carbon dioxide capture system with the regeneration tower device, and the regeneration tower device comprises a tower structure; the liquid inlet is formed in the top of the tower structure, and the liquid outlet is formed in the bottom of the tower structure; the filler structure is arranged in the tower structure; the foam breaking structure is arranged in the tower structure and located below the filler structure, and the foam breaking structure comprises a rotating shaft and a plurality of blades arranged on the rotating shaft. According to the technical scheme, the problems that the production cost is increased and the absorption efficiency is reduced due to the fact that a defoaming agent is used for defoaming in the related technology are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical industry and environmental protection, and in particular to a regeneration tower device and a carbon dioxide capture system having the same. Background Art

[0002] With the development of industrialization, the emission of carbon dioxide is increasing day by day, which has caused serious pollution to the environment and caused global warming, greenhouse effect and other problems. In order to reduce the emission of carbon dioxide, carbon dioxide capture technology has been widely used. The industrial tail gas rich in carbon dioxide is passed into the absorption tower, and the carbon dioxide absorbent in the absorption tower absorbs the carbon dioxide in the industrial tail gas. The carbon dioxide absorbent after the reaction will sink to the bottom of the absorption tower. The carbon dioxide absorbent after the reaction is passed into the regeneration tower. After the cycle spray heating regeneration, the carbon dioxide in the carbon dioxide absorbent is precipitated, and the carbon dioxide absorbent continues to be passed into the absorption tower for recycling.

[0003] In the regeneration tower, gas will precipitate from the liquid, which will generate more bubbles. A large number of bubbles will cause the desorption tower to overflow and the partial pressure to be abnormal, thus greatly reducing the CO2 desorption efficiency of the desorption tower. In order to reduce the generation of bubbles, defoaming agents are generally used for defoaming, but this requires observation at any time and the choice of whether to add defoaming agents, which will increase the production cost. Summary of the invention

[0004] The main purpose of the present invention is to provide a regeneration tower device and a carbon dioxide capture system having the same, so as to solve the problem in the related art that defoaming is performed using a defoaming agent, thereby increasing production costs and reducing absorption efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a regeneration tower device, comprising: a tower structure; a liquid inlet and a liquid outlet, the liquid inlet is arranged at the top of the tower structure, and the liquid outlet is arranged at the bottom of the tower structure; a packing structure, arranged inside the tower structure; a bubble breaking structure, arranged inside the tower structure and below the packing structure, the bubble breaking structure comprising a rotating shaft and a plurality of blades arranged on the rotating shaft.

[0006] Furthermore, the plurality of blades include a first blade, a second blade and a third blade, and the first blade, the second blade and the third blade are spirally arranged.

[0007] Furthermore, there is a first angle between edge a of the first blade facing the packing structure and edge b of the second blade facing the packing structure, there is a second angle between edge b of the second blade facing the packing structure and edge c of the third blade facing the packing structure, there is a third angle between edge a of the first blade facing the packing structure and edge c of the third blade facing the packing structure, and the first angle, the second angle and the third angle are all between 45° and 70°.

[0008] Further, the distance between the blades and the inner wall of the tower structure is between 0 and 10 cm.

[0009] Furthermore, the regeneration tower device also includes a first ultrasonic bubble breaking structure, which is arranged on the inner wall of the tower structure and located between the packing structure and the bubble breaking structure.

[0010] Furthermore, the regeneration tower device also includes a second ultrasonic bubble breaking structure, which is arranged inside the tower structure and above the packing structure.

[0011] Furthermore, the packing structure includes a first packing part and a second packing part, the first packing part and the second packing part are arranged at an interval, and the regeneration tower device also includes a third ultrasonic bubble breaking structure, and the third ultrasonic bubble breaking structure is arranged between the first packing part and the second packing part.

[0012] Furthermore, the regeneration tower device also includes a liquid outlet pipeline and a liquid inlet pipeline, the liquid outlet pipeline is connected to the liquid outlet, and the liquid inlet pipeline is connected to the liquid inlet.

[0013] Furthermore, the regeneration tower device also includes a heat exchanger, and the heat exchanger is connected to both the liquid outlet pipeline and the liquid inlet pipeline.

[0014] According to another aspect of the present application, a carbon dioxide capture system is provided, comprising a regeneration tower device, wherein the regeneration tower device is the above-mentioned regeneration tower device.

[0015] According to the technical solution of the present invention, the liquid inlet is arranged at the top of the tower structure, and the liquid outlet is arranged at the bottom of the tower structure. The packing structure is arranged inside the tower structure, and the bubble breaking structure is arranged inside the tower structure and below the packing structure. The bubble breaking structure includes a rotating shaft and a plurality of blades arranged on the rotating shaft. Through the above arrangement, the rotating shaft can rotate and drive the plurality of blades to rotate. When the blades rotate, the bubbles can be broken, thereby achieving bubble breaking. Therefore, the technical solution of the present application effectively solves the problem in the related art of using a defoaming agent for defoaming, which leads to increased production costs and reduced absorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of a regeneration tower device according to the present invention is shown;

[0018] Figure 2 Shows Figure 1A three-dimensional structural schematic diagram of a tower structure of a regeneration tower device;

[0019] Figure 3 Shows Figure 2 A schematic cross-sectional view of a tower structure;

[0020] Figure 4 Shows Figure 2 A three-dimensional structural diagram of a bubble breaking structure of a tower structure;

[0021] Figure 5 Shows Figure 4 Schematic diagram of the front view of the bubble breaking structure.

[0022] The above drawings include the following reference numerals:

[0023] 10. Tower structure; 21. Liquid inlet; 22. Liquid outlet; 30. Packing structure; 31. First packing part; 32. Second packing part; 40. Bubble breaking structure; 41. Rotating shaft; 42. Blades; 421. First blades; 422. Second blades; 423. Third blades; 51. First ultrasonic bubble breaking structure; 52. Second ultrasonic bubble breaking structure; 53. Third ultrasonic bubble breaking structure; 61. Liquid inlet pipeline; 62. Liquid outlet pipeline; 70. Heat exchanger. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0027] like Figure 1 as well as Figures 3 to 5 As shown, in this embodiment, the regeneration tower device includes: a tower structure 10, a liquid inlet 21, a liquid outlet 22, a packing structure 30 and a bubble breaking structure 40. The liquid inlet 21 is arranged at the top of the tower structure 10, and the liquid outlet 22 is arranged at the bottom of the tower structure 10. The packing structure 30 is arranged inside the tower structure 10. The bubble breaking structure 40 is arranged inside the tower structure 10 and below the packing structure 30, and the bubble breaking structure 40 includes a rotating shaft 41 and a plurality of blades 42 arranged on the rotating shaft 41.

[0028] By applying the technical solution of this embodiment, the liquid inlet 21 is arranged at the top of the tower structure 10, and the liquid outlet 22 is arranged at the bottom of the tower structure 10. The packing structure 30 is arranged inside the tower structure 10, and the bubble breaking structure 40 is arranged inside the tower structure 10 and below the packing structure 30. The bubble breaking structure 40 includes a rotating shaft 41 and a plurality of blades 42 arranged on the rotating shaft 41. Through the above arrangement, the rotating shaft 41 can rotate and drive the plurality of blades 42 to rotate. When the blades 42 rotate, the bubbles can be broken, thereby achieving bubble breaking. Therefore, the technical solution of this embodiment effectively solves the problem of using a defoaming agent for defoaming in the related art, which leads to increased production costs and reduced absorption efficiency.

[0029] Specifically, the bubble breaking structure 40 is located at the bottom of the tower structure 10. The bubble breaking structure 40 can increase the turbulence of the liquid during stirring, thereby improving the contact area and mass transfer efficiency between the liquid and the gas. During stirring, the flow of the liquid can drive the movement of the bubbles, and the bubbles may collide and squeeze each other during the movement, thereby breaking. This bubble breaking effect helps to reduce the size of the bubbles, increase the surface area of ​​the bubbles, and thus improve the solubility of the gas in the liquid.

[0030] It should be noted that by arranging the bubble breaking structure 40 inside the regeneration tower, the generation of foam can be effectively reduced, the flow efficiency of the liquid in the tower can be improved, and it is particularly suitable for the regeneration process of the amine liquid in the carbon dioxide capture system, preventing the loss of amine liquid entrainment caused by foam, and improving the economy and environmental protection of the system. In practical applications, this design significantly reduces the loss of amine liquid, improves the recovery efficiency of carbon dioxide, and reduces the operating cost of the system. It is particularly suitable for those factories that require efficient amine liquid regeneration, such as thermal power plants and petrochemical plants, to reduce greenhouse gas emissions while maintaining economic sustainability.

[0031] like Figures 1 to 5 As shown, in this embodiment, the plurality of blades 42 include a first blade 421, a second blade 422 and a third blade 423, and the first blade 421, the second blade 422 and the third blade 423 are spirally arranged. The above arrangement can ensure the effect of breaking bubbles.

[0032] The spirally arranged blades 42 can better guide the flow of liquid, form vortices, help to break bubbles in the liquid, improve the foam control ability of the regeneration tower, and are suitable for treating liquids with high viscosity or easy to generate foam, such as amine liquid regeneration in industrial waste gas treatment. This improvement not only enhances foam control, but also optimizes the distribution of liquid, making the amine liquid regeneration process more uniform, avoiding local overheating or overcooling, effectively extending the service life of the packing, and reducing the maintenance cost of the regeneration tower. In the fields of chemical industry, petroleum refining and biotechnology, this design can significantly improve production efficiency and reduce energy consumption.

[0033] like Figures 3 to 5 As shown, in this embodiment, there is a first angle between the edge a of the first blade 421 facing the packing structure 30 and the edge b of the second blade 422 facing the packing structure 30, there is a second angle between the edge b of the second blade 422 facing the packing structure 30 and the edge c of the third blade 423 facing the packing structure 30, there is a third angle between the edge a of the first blade 421 facing the packing structure 30 and the edge c of the third blade 423 facing the packing structure 30, and the first angle, the second angle and the third angle are all between 45° and 70°. The area of ​​the blade 42 is large, so that the bubbles have a greater chance of contacting with the blade 42, and the bubble breaking effect is better.

[0034] The above-mentioned angle design can optimize the distribution of liquid in the tower, avoid local overheating or overcooling, and improve regeneration efficiency. It is particularly suitable for regeneration processes that require fine temperature control, such as solvent regeneration in the chemical industry. Precise angle control ensures uniform heat distribution inside the regeneration tower, thereby improving regeneration efficiency and product quality. In actual operation, this design reduces energy consumption and shortens regeneration time. It is particularly effective for regenerating temperature-sensitive products, such as in the fine chemical and pharmaceutical industries, which can significantly improve product purity and yield.

[0035] like Figures 3 to 5 As shown, in this embodiment, the distance between the blade 42 and the inner wall of the tower structure 10 is between 0 and 10 cm. The above arrangement can prevent bubbles from flowing out from the gap between the blade 42 and the inner wall of the tower structure 10.

[0036] Specifically, by adjusting the distance between the blades 42 and the tower wall, the turbulence of the liquid can be controlled, and the foam rupture effect can be further optimized, which is suitable for regeneration towers of different sizes, such as from small laboratory equipment to large industrial production facilities. This design enables the regeneration tower to adapt to various operating conditions, whether it is a small-scale experiment in the laboratory or a large-scale application in industrial production, it can effectively control the foam and ensure the stability and efficiency of the regeneration process. For large industrial facilities, this design can also reduce energy consumption and reduce operating costs.

[0037] like Figure 1 and Figure 3 As shown, in this embodiment, the regeneration tower device further includes a first ultrasonic bubble breaking structure 51, which is arranged on the inner wall of the tower structure 10 and between the packing structure 30 and the bubble breaking structure 40. The above arrangement can further improve the bubble breaking effect.

[0038] In this embodiment, the introduction of the first ultrasonic bubble breaking structure 51 can enhance the bubble breaking effect and reduce the influence of foam on the regeneration process, and is particularly suitable for treating liquids containing a large number of tiny bubbles, such as liquid regeneration in the biological fermentation industry.

[0039] The application of ultrasonic technology can more effectively destroy bubbles and prevent bubbles from agglomerating to form foam, which is crucial to improving the ability of the regeneration tower to handle high-bubble liquids. In the biological fermentation industry, this design can significantly improve the regeneration efficiency of the fermentation liquid, reduce the liquid loss caused by foam, and thus improve production efficiency and product quality.

[0040] like Figure 1 and Figure 3As shown, in this embodiment, the regeneration tower device further includes a second ultrasonic bubble breaking structure 52, which is arranged inside the tower structure 10 and above the packing structure 30. The packing structure 30 includes a first packing part 31 and a second packing part 32, and the first packing part 31 and the second packing part 32 are arranged at intervals. The regeneration tower device also includes a third ultrasonic bubble breaking structure 53, which is arranged between the first packing part 31 and the second packing part 32. The above arrangement can further improve the effect of bubble breaking, that is, the second ultrasonic bubble breaking structure 52 realizes the first bubble breaking, the third ultrasonic bubble breaking structure 53 can realize the second bubble breaking, the first ultrasonic bubble breaking structure 51 can realize the third bubble breaking, and the bubble breaking structure 40 can realize the fourth bubble breaking, which can ensure the effect of bubble breaking.

[0041] It should be noted that the second ultrasonic bubble breaking structure 52 is arranged above the packing structure 30, which can further eliminate the foam in the upward liquid and improve the purity of the regenerated liquid, and is suitable for application scenarios with high requirements on the quality of the regenerated liquid, such as solvent regeneration in the pharmaceutical industry. In the pharmaceutical industry, the purity of solvent regeneration has a direct impact on the quality of the final product. The application of the second ultrasonic bubble breaking structure can ensure that the regenerated liquid has fully removed the foam when leaving the packing structure, further improve the purity of the regenerated liquid, and meet the pharmaceutical industry's requirements for high-purity solvents.

[0042] Specifically, the third ultrasonic bubble breaking structure 53 is provided between the first packing part 31 and the second packing part 32, which can effectively control the foam between the packing layers, improve the processing efficiency of the regeneration tower, and is suitable for treating liquids containing complex components, such as solvent regeneration in petroleum refining. The application of the third ultrasonic bubble breaking structure 53 can ensure that the foam can also be effectively controlled during the regeneration process of the liquid between the first packing part 31 and the second packing part 32, which is particularly important for treating liquids with complex components such as petroleum refining, and can improve the regeneration efficiency, reduce energy consumption, and reduce the impact on the environment.

[0043] The first ultrasonic bubble breaking structure 51, the second ultrasonic bubble breaking structure 52 and the third ultrasonic bubble breaking structure 53 can generate high-frequency sound waves, which can further break the bubbles on the liquid surface. The vibration energy of the ultrasonic wave can be transmitted to the bubbles, causing uneven distribution of pressure inside the bubbles, thereby causing the bubbles to burst. Ultrasonic bubble breaking can more effectively reduce the bubble size and improve the dispersion of the gas, which is very beneficial to the dissolution and separation process of the gas.

[0044] like Figure 1 and Figure 3As shown, in this embodiment, the regeneration tower device further includes a liquid outlet pipeline 62 and a liquid inlet pipeline 61, the liquid outlet pipeline 62 is connected to the liquid outlet 22, and the liquid inlet pipeline 61 is connected to the liquid inlet 21. The above arrangement can make the overall structure relatively simple and can ensure the flow of liquid.

[0045] Specifically, by providing independent liquid outlet pipeline 62 and liquid inlet pipeline 61, the inflow and outflow of liquid can be precisely controlled, thereby improving the operational flexibility of the regeneration tower, and is suitable for regeneration processes that require frequent adjustment of operating parameters, such as wastewater treatment in environmental protection.

[0046] The independent design of the liquid outlet pipeline 62 and the liquid inlet pipeline 61 enables the regeneration tower to flexibly adjust the flow rate and flow of the liquid according to the needs of wastewater treatment, which plays a key role in the optimization and control of the wastewater treatment process, and can significantly improve the efficiency and effect of wastewater treatment, reduce pollutant emissions, and protect the environment.

[0047] like Figure 1 and Figure 3 As shown, in this embodiment, the regeneration tower device further includes a heat exchanger 70, and the heat exchanger 70 is connected to both the liquid outlet pipeline 62 and the liquid inlet pipeline 61. The arrangement of the heat exchanger 70 can realize heat exchange, thereby increasing the temperature of the rich liquid.

[0048] In this embodiment, the addition of the heat exchanger 70 can effectively recover heat, reduce the energy consumption of the regeneration process, and improve the overall energy efficiency of the system. It is particularly suitable for regeneration processes that require a large amount of heat, such as the application of carbon dioxide capture and storage technology in the energy industry. The addition of the heat exchanger not only improves the energy efficiency of the system, but also promotes the recycling of energy, which is of great significance for reducing operating costs, improving economic benefits, and reducing the impact on the environment. In the energy industry, this design is particularly suitable for facilities that need to process a large amount of carbon dioxide gas, such as thermal power plants, natural gas processing plants, etc., which can significantly reduce carbon dioxide emissions and contribute to the realization of green and low-carbon transformation.

[0049] Specifically, the regeneration tower device of this embodiment has the following advantages:

[0050] The bubble breaking structure 40 allows the liquid to circulate and mix inside the tower structure 10 by mechanical or fluid dynamic means, which helps to accelerate chemical reactions, improve mass transfer efficiency, and promote the collapse of bubbles.

[0051] When the bubble breaking structure 40 is stirring, the movement of the liquid can drive the bubbles to rise. During the rising process, the bubbles will collide and squeeze each other due to the turbulence and stirring of the liquid. This collision and squeezing helps the bubbles to break, thereby releasing the gas in the bubbles, making the mass transfer between the gas and the liquid more efficient.

[0052] The first ultrasonic bubble breaking structure 51, the second ultrasonic bubble breaking structure 52 and the third ultrasonic bubble breaking structure 53 are arranged in the middle of the tower structure 10, which can further enhance the bubble breaking effect. The high-frequency sound waves generated by the first ultrasonic bubble breaking structure 51, the second ultrasonic bubble breaking structure 52 and the third ultrasonic bubble breaking structure 53 can exert pressure on the bubbles on the liquid surface, causing the bubbles to burst. Ultrasonic bubble breaking technology is a non-contact bubble breaking method that can improve bubble breaking efficiency, reduce energy consumption and reduce equipment maintenance costs without introducing additional mechanical components.

[0053] According to another aspect of the present application, a carbon dioxide capture system is provided. The carbon dioxide capture system of this embodiment includes a regeneration tower device, and the regeneration tower device is the above-mentioned regeneration tower device. The above-mentioned regeneration tower device can achieve bubble breaking, and the bubble breaking effect is good, so the carbon dioxide capture system having the above-mentioned regeneration tower device also has the above-mentioned advantages.

[0054] Specifically, the CO2 capture system can significantly improve the capture efficiency and regeneration capacity of CO2 and reduce the loss of amine liquid by integrating an optimized regeneration tower device. It is suitable for CO2 capture projects of various sizes, from industrial flue gas treatment to large-scale carbon capture and storage (CCS) facilities, and provides effective technical solutions for reducing greenhouse gas emissions and responding to global climate change. In addition, the system can also adjust the operating parameters of the regeneration tower, such as temperature, pressure and liquid flow rate, to adapt to CO2 gas from different sources, thereby enhancing the adaptability and economy of the system.

[0055] The application of integrated and optimized regeneration tower devices in the carbon dioxide capture system not only improves the overall performance of the system, but also can cope with challenges under different working conditions. Whether it is industrial flue gas treatment in cities or large-scale carbon capture and storage facilities in remote areas, they can operate stably and capture carbon dioxide efficiently. By flexibly adjusting the operating parameters of the regeneration tower, the system can adapt to carbon dioxide gas from various sources, including industrial waste gas of different concentrations and compositions, enhancing the adaptability and economy of the system, and providing strong technical support for global climate change mitigation.

[0056] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0057] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0058] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A regeneration tower device, characterized in that: include: Tower structure (10); a liquid inlet (21) and a liquid outlet (22), wherein the liquid inlet (21) is arranged at the top of the tower structure (10), and the liquid outlet (22) is arranged at the bottom of the tower structure (10); A packing structure (30) is arranged inside the tower structure (10); The bubble breaking structure (40) is arranged inside the tower structure (10) and below the packing structure (30). The bubble breaking structure (40) comprises a rotating shaft (41) and a plurality of blades (42) arranged on the rotating shaft (41).

2. The regeneration tower device according to claim 1, characterized in that: The plurality of blades (42) include a first blade (421), a second blade (422) and a third blade (423), and the first blade (421), the second blade (422) and the third blade (423) are spirally arranged.

3. The regeneration tower device according to claim 2, characterized in that: There is a first angle between the edge a of the first blade (421) toward the packing structure (30) and the edge b of the second blade (422) toward the packing structure (30), there is a second angle between the edge b of the second blade (422) toward the packing structure (30) and the edge c of the third blade (423) toward the packing structure (30), there is a third angle between the edge a of the first blade (421) toward the packing structure (30) and the edge c of the third blade (423) toward the packing structure (30), and the first angle, the second angle and the third angle are all between 45° and 70°.

4. The regeneration tower device according to claim 1, characterized in that: The distance between the blades (42) and the inner wall of the tower structure (10) is between 0 and 10 cm.

5. The regeneration tower device according to claim 1, characterized in that: The regeneration tower device further comprises a first ultrasonic bubble breaking structure (51), wherein the first ultrasonic bubble breaking structure (51) is arranged on the inner wall of the tower structure (10) and is located between the packing structure (30) and the bubble breaking structure (40).

6. The regeneration tower device according to claim 1, characterized in that: The regeneration tower device further comprises a second ultrasonic bubble breaking structure (52), wherein the second ultrasonic bubble breaking structure (52) is arranged inside the tower structure (10) and located above the packing structure (30).

7. The regeneration tower device according to claim 1, characterized in that: The packing structure (30) comprises a first packing portion (31) and a second packing portion (32), wherein the first packing portion (31) and the second packing portion (32) are arranged at an interval, and the regeneration tower device further comprises a third ultrasonic bubble breaking structure (53), wherein the third ultrasonic bubble breaking structure (53) is arranged between the first packing portion (31) and the second packing portion (32).

8. The regeneration tower device according to claim 1, characterized in that: The regeneration tower device further comprises a liquid outlet pipeline (61) and a liquid inlet pipeline (62), wherein the liquid outlet pipeline (61) is in communication with the liquid outlet (22), and the liquid inlet pipeline (62) is in communication with the liquid inlet (21).

9. The regeneration tower device according to claim 8, characterized in that: The regeneration tower device further comprises a heat exchanger (70), wherein the heat exchanger (70) is in communication with both the liquid outlet pipeline (61) and the liquid inlet pipeline (62).

10. A carbon dioxide capture system, comprising a regeneration tower device, characterized in that: The regeneration tower device is the regeneration tower device according to any one of claims 1 to 9.

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