Defoaming structure, regenerator and carbon dioxide capture system

Abstract

The present invention provides a defoaming structure, a regeneration tower, and a carbon dioxide capture system. The defoaming structure comprises: a base plate; a first bubble-breaking structure disposed on the base plate; a curved cover disposed on the base plate; and a second bubble-breaking structure disposed on the curved cover. The first bubble-breaking structure comprises a plurality of first bubble-breaking holes, each of which has a plurality of corners. The technical solution of this application effectively solves the problem of high costs associated with the use of defoaming agents for defoaming in related technologies.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbon dioxide capture, in particular to a defoaming structure, a regenerator and a carbon dioxide capture system. BACKGROUND

[0002] With the development of industrialization, the emission of carbon dioxide is increasing, which causes serious pollution to the environment, and also causes global warming and intensifies the greenhouse effect. 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 introduced into the absorption tower, and the carbon dioxide absorbent in the absorption tower absorbs the carbon dioxide in the industrial tail gas. The reacted carbon dioxide absorbent will sink to the bottom of the absorption tower. The reacted carbon dioxide absorbent is introduced into the regenerator, and after being regenerated by circulating spraying and heating, the carbon dioxide in the carbon dioxide absorbent is precipitated, and the carbon dioxide absorbent is continuously introduced into the absorption tower for recycling.

[0003] In the regenerator, gas will precipitate from the liquid, and a large number of bubbles will be generated. A large number of bubbles will cause a false liquid level. In order to reduce the generation of bubbles, a defoaming agent is generally used for defoaming. However, this requires observation and selection of whether to add the defoaming agent at any time, which increases the production cost. SUMMARY

[0004] The main purpose of the present application is to provide a defoaming structure, a regenerator and a carbon dioxide capture system to solve the problem of high cost caused by using a defoaming agent for defoaming in the related art.

[0005] In order to achieve the above purpose, according to one aspect of the present application, a defoaming structure is provided, comprising: a substrate; a first bubble breaking structure arranged on the substrate; an arc-shaped cover arranged on the substrate; and a second bubble breaking structure arranged on the arc-shaped cover; wherein the first bubble breaking structure comprises a plurality of first bubble breaking holes, and each first bubble breaking hole has a plurality of corner portions.

[0006] Further, the substrate comprises a plurality of first plate bodies, a plurality of second plate bodies and a plurality of connecting plates, the first plate bodies and the second plate bodies are arranged at intervals, the first plate body is located between two adjacent second plate bodies, and the connecting plate is connected between the first plate body and the second plate body.

[0007] Further, the plurality of first bubble breaking holes form a plurality of first bubble breaking portions, and each first plate body, each second plate body and each connecting plate is provided with one first bubble breaking portion.

[0008] Further, the shapes of the first bubble breaking holes in each first bubble breaking portion are different.

[0009] Further, the number of corner portions of each first bubble breaking hole is greater than 8.

[0010] Further, the second bubble breaking structure comprises a plurality of second bubble breaking holes, and each second bubble breaking hole has the same number of corners.

[0011] Further, the plurality of second bubble breaking holes form a plurality of second bubble breaking portions, each second bubble breaking portion comprises a plurality of second bubble breaking holes, and the number of second bubble breaking holes in each second bubble breaking portion gradually increases from the top of the arc-shaped cover to the bottom of the arc-shaped cover.

[0012] Further, the size of the second bubble breaking hole in the second bubble breaking portion gradually increases from the top of the arc-shaped cover to the bottom of the arc-shaped cover.

[0013] According to a second aspect of the present application, there is provided a regeneration tower comprising a bubble breaking structure, wherein the bubble breaking structure is the bubble breaking structure described above.

[0014] According to a third aspect of the present application, there is provided a carbon dioxide capture system comprising a regeneration tower, wherein the regeneration tower is the regeneration tower described above.

[0015] With the technical solution of the present application, the first bubble breaking structure is arranged on the base plate, the arc-shaped cover is arranged on the base plate, and the second bubble breaking structure is arranged on the arc-shaped cover. Specifically, the first bubble breaking structure comprises a plurality of first bubble breaking holes, and each first bubble breaking hole has a plurality of corners. Through the above arrangement, the bubbles can be broken for the first time when passing through the first bubble breaking structure, and then pass through the base plate to the space between the base plate and the arc-shaped cover. After being squeezed in the space between the base plate and the arc-shaped cover, the bubbles can be broken for the second time. Finally, the bubbles pass through the second bubble breaking structure on the arc-shaped cover and flow out. The second bubble breaking structure can break the bubbles for the third time, thereby ensuring the bubble breaking effect. Therefore, the technical solution of the present application effectively solves the problem of high cost caused by using a defoaming agent for defoaming in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of the specification of the present application are used to provide a further understanding of the present application, and the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 Fig. 1 shows a perspective structural schematic diagram of an embodiment of a bubble breaking structure according to the present application;

[0018] Figure 2 Fig. 2 shows an exploded structural schematic diagram of the bubble breaking structure of Fig. 1; Figure 1

[0019] Figure 3 Fig. 3 shows a sectional view schematic diagram of the bubble breaking structure of Fig. 1; Figure 1

[0020] Figure 4 Fig. 4 shows a sectional view schematic diagram of the bubble breaking structure of Fig. 2; Figure 1 ​​A perspective view of a structure of a base plate of a bubble breaking structure.

[0021] Wherein, the above figures include the following reference signs:

[0022] 10, base plate; 11, first plate body; 12, second plate body; 13, connecting plate; 20, first bubble breaking structure; 21, first bubble breaking hole; 30, arc cover; 40, second bubble breaking structure; 41, second bubble breaking hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present application.

[0024] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of the features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth herein are not limiting of the scope of the present application. It should be understood that the various parts of the drawings are not necessarily drawn to scale, and that, for the purpose of convenience and clarity, not all components can be shown in a given figure. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but rather can be assumed to be known by those of ordinary skill in the art. In the examples shown and discussed herein, any specific values should be interpreted as merely illustrative, and not as a limitation on the scope of the exemplary embodiments. Thus, other examples of the exemplary embodiments can have different values. It is noted that like reference numerals and letters in the various figures indicate like parts, and thus, once one part is defined in one figure, it need not be discussed further in subsequent figures.

[0026] As Figures 1 to 3As shown, in this embodiment, the defoaming structure includes: a substrate 10, a first bubble-breaking structure 20, a curved cover 30, and a second bubble-breaking structure 40. The first bubble-breaking structure 20 is disposed on the substrate 10. The curved cover 30 is disposed on the substrate 10. The second bubble-breaking structure 40 is disposed on the curved cover 30. The first bubble-breaking structure 20 includes a plurality of first bubble-breaking holes 21, each of which has a plurality of corners.

[0027] Applying the technical solution of this embodiment, the first bubble-breaking structure 20 is arranged on the substrate 10, the arc-shaped cover 30 is arranged on the substrate 10, and the second bubble-breaking structure 40 is arranged on the arc-shaped cover 30. Specifically, the first bubble-breaking structure 20 includes a plurality of first bubble-breaking holes 21, each of which has a plurality of corners. Through the above-mentioned arrangement, bubbles can achieve the first bubble breaking when passing through the first bubble-breaking structure 20, and pass through the substrate 10 to enter between the substrate 10 and the arc-shaped cover 30. After being squeezed between the substrate 10 and the arc-shaped cover 30, they can achieve the second bubble breaking, and finally flow out through the second bubble-breaking structure 40 on the arc-shaped cover 30. The second bubble-breaking structure 40 can achieve the third bubble breaking, thereby ensuring the bubble breaking effect. Therefore, the technical solution of this embodiment effectively solves the problem of using defoaming agents for defoaming in the related art, which leads to high costs.

[0028] Through this design, the defoaming structure can effectively reduce foam formation and improve liquid separation efficiency during industrial production processes, especially in tower equipment in the chemical, petroleum, pharmaceutical and other industries, thereby reducing energy consumption and improving production efficiency.

[0029] This design effectively cuts and destroys the foam through the corners of the first bubble-breaking holes 21, significantly reducing the foam's residence time in the liquid and accelerating its breakdown. This effect is particularly pronounced in liquids containing surfactants. Applications can be expanded to the food industry, water treatment, and any production process requiring foam control. For example, in the production of yogurt and beer, the defoaming structure can effectively control foam and ensure product quality.

[0030] like Figures 2 to 4 As shown, in this embodiment, the substrate 10 includes a plurality of first plates 11, a plurality of second plates 12, and a plurality of connecting plates 13. The first plates 11 and the second plates 12 are spaced apart, with a first plate 11 located between two adjacent second plates 12. The connecting plates 13 are connected between the first plates 11 and the second plates 12. This arrangement enables the substrate 10 to contact the bubbles in a stepped manner, thereby improving the bubble breaking effect.

[0031] It should be noted that this structure not only enhances the mechanical strength of the defoaming structure, but also further improves the defoaming effect by increasing the contact area, which is suitable for treating high-viscosity or large-foam-containing liquids, such as in wastewater treatment and fermentation industry. In practical applications, this layered design of the substrate 10 can withstand more complex working conditions, for example, in a chemical reaction kettle, high-viscosity reaction liquid is easy to produce stable foam, and the use of this defoaming structure can effectively destroy these foams, accelerate the mixing and reaction of the reaction liquid, and improve production efficiency. In wastewater treatment, the defoaming structure can reduce the overflow problem caused by foam to ensure the continuity and efficiency of the treatment process.

[0032] As shown in Figure 2 and Figure 4 In this embodiment, a plurality of first bubble breaking holes 21 form a plurality of first bubble breaking parts, and each first plate body 11, each second plate body 12 and each connecting plate 13 are provided with a first bubble breaking part. The above arrangement can ensure the defoaming effect.

[0033] Specifically, this layout can ensure that the foam is uniformly destroyed when passing through the defoaming structure, preventing incomplete defoaming in some areas, and is suitable for occasions that require highly uniform defoaming effect, such as liquid treatment processes in fine chemical industry and biological engineering. In the fields of fine chemical industry and biological engineering, the liquid often contains sensitive components such as microorganisms and proteins. The use of this uniform defoaming layout can avoid excessive local damage to these sensitive components while ensuring the consistency of the defoaming effect, which is beneficial to improving the purity and yield of the product. For example, in the biological fermentation process, excessive foam can interfere with the supply of oxygen and affect the growth of microorganisms, and an optimized defoaming structure can effectively control the foam and ensure the stability of the fermentation process.

[0034] As shown in Figure 2 and Figure 4 In this embodiment, the shapes of the first bubble breaking holes 21 in each first bubble breaking part are different. The above arrangement can improve the defoaming effect and ensure the defoaming efficiency.

[0035] As shown in Figure 2 and Figure 4 In this embodiment, the number of corners of each first bubble breaking hole 21 is greater than 8. The above arrangement of corners can achieve bubble breaking, that is, when the bubble contacts the corner, the bubble can be broken.

[0036] Specifically, the increase in the number of corners means that the foam will be subjected to more shear force when passing through the breaking hole, thereby more effectively breaking the foam and improving the defoaming efficiency, which is suitable for handling highly foaming liquids, such as in oil extraction and chemical reactions. In oil extraction and chemical reactions, the liquid often has high foaming properties, which can cause foam accumulation in the tower equipment, affecting the transmission and separation efficiency of the liquid.

[0037] By increasing the number of corners of the first breaking hole 21, the shear force is increased, and the foam is more thoroughly broken, thereby avoiding the phenomenon of flooding and improving the processing capacity and stability of the tower. For example, in the oil refining process, the defoaming structure can effectively reduce the foam and avoid the mixing of the liquid at the top and bottom of the tower, thereby improving the separation effect.

[0038] As shown in Figures 1 to 3 In this embodiment, the second breaking structure 40 includes a plurality of second breaking holes 41, and the number of corners of each second breaking hole 41 is the same. The above arrangement can effectively achieve defoaming.

[0039] It should be noted that this design ensures the consistency of the defoaming effect of the second breaking structure 40, which is suitable for occasions that require stable defoaming effect, such as in continuous chemical production and gas purification processes. In continuous chemical production, maintaining the consistency of the defoaming effect is crucial to maintaining the stable operation of the production line. The uniform design of the number of corners of the second breaking hole 41 ensures the uniformity of the breaking force on the foam in the liquid, avoiding process instability caused by fluctuations in the defoaming effect. In the gas purification process, the defoaming structure can effectively remove the carried foam, avoiding the interference of the foam on the subsequent purification equipment, and improving the efficiency and quality of the gas purification.

[0040] As shown in Figures 1 to 3 In this embodiment, the plurality of second breaking holes 41 form a plurality of second breaking portions, each second breaking portion includes a plurality of second breaking holes 41, and the number of second breaking holes 41 in each second breaking portion gradually increases from the top of the arc-shaped cover 30 to the bottom of the arc-shaped cover 30. The above arrangement can increase the number of second breaking holes 41, thereby ensuring the defoaming efficiency.

[0041] It should be noted that this gradual design can provide more accurate defoaming effect according to the distribution and characteristics of the foam, and is suitable for processing liquid with foam density changing with height, such as application in the regenerator and distillation column. In the regenerator and distillation column, the temperature and pressure of the liquid change with height, causing the density and stability of the foam to change accordingly. The gradual design of the number of second bubble breaking holes 41 can dynamically adjust the defoaming effect according to the change of the liquid state, ensuring that the foam can be effectively controlled at different heights, avoiding liquid overflow, and improving the separation efficiency and stability of the column. For example, in the solvent regeneration process, this design can effectively handle the foam at different stages, improve the solvent regeneration rate, and reduce energy consumption.

[0042] As shown in Figures 1 to 3 In this embodiment, the size of the second bubble breaking hole 41 in the second bubble breaking part gradually increases from the top of the arc cover 30 to the bottom of the arc cover 30. The above arrangement can improve the efficiency of bubble breaking.

[0043] Specifically, the gradual change of size can adapt to the change process of foam from large to small, improve the comprehensiveness and efficiency of defoaming, and is suitable for processing liquid with dynamic changes of foam generation and rupture, such as application in the fermenter and reaction kettle. In the fermenter and reaction kettle, the generation and rupture of foam is a dynamic process, the foam is larger in the initial stage and smaller in the later stage. The gradual design of the size of the second bubble breaking hole can adjust the breaking force according to the change of the foam, ensuring effective treatment of foam of different sizes. This design is particularly important for chemical reactions and biological fermentation processes involving a large amount of foam, which can avoid foam accumulation, maintain good gas-liquid contact, and improve reaction rate and product quality.

[0044] In this embodiment, the defoaming structure and the regenerator and carbon dioxide capture system comprising the same can effectively break the surface tension of the liquid droplets by arranging the first bubble breaking structure 20 on the base plate 10 and the second bubble breaking structure 40 on the arc cover 30, promoting the rupture of the foam and improving the defoaming efficiency. The angular design of the first bubble breaking hole 21, and the gradual change of the number and size of the second bubble breaking hole 41 further enhance the defoaming effect, effectively prevent the accumulation of foam, and improve the operation stability of the regenerator and the overall efficiency of the carbon dioxide capture system. This design can significantly reduce energy consumption and improve production efficiency in practical application, and has wide industrial application value.

[0045] Specifically, the defoaming structure of the present embodiment has the following advantages:

[0046] Ladder-shaped structure of the base plate 10: This structure design increases the surface area and contact area of the defoaming structure, which helps to more effectively capture and break bubbles.

[0047] Multiple irregular holes: A plurality of holes arranged on the serrated structure, the irregular shape of these holes helps to increase the contact points between bubbles and hole walls, thus improving the breaking bubble efficiency.

[0048] Multi-angled hole design: The hole has more than 8 angles, this design makes the bubble have more contact points and larger contact area when passing through the hole, increases the possibility of bubble rupture.

[0049] Breaking bubble effect: Due to the irregularity and multi-angledness of the hole wall, the bubble will be subjected to more shear force and pressure when passing through the hole, which helps to break the bubble and defoam.

[0050] Guarantee the breaking bubble effect: The design of multi-angled hole not only increases the possibility of breaking bubble, but also helps to guarantee the effect of breaking bubble, ensures that the bubble is completely destroyed, reduces the residue.

[0051] Applicability: This defoaming structure is suitable for various industrial processes, especially in applications that require efficient defoaming and cleaning of gas or liquid media.

[0052] The design of this defoaming structure makes full use of physical principles, by increasing the opportunities and areas of bubble contact with the defoaming structure, it improves the breaking bubble efficiency and effect. This has a positive effect on improving the efficiency of industrial processes, reducing energy consumption, and protecting the environment.

[0053] According to the second aspect of the application, a regeneration tower is provided, the regeneration tower of the embodiment includes a defoaming structure, and the defoaming structure is the defoaming structure described above. The defoaming structure described above can effectively achieve breaking bubble, so the regeneration tower with the defoaming structure described above also has the advantages described above.

[0054] Specifically, in the application of regeneration tower in the field of chemical industry, environmental protection, etc., the addition of defoaming structure can significantly improve the separation and regeneration efficiency of liquid in the tower, reduce the phenomenon of liquid overflow caused by foam, improve the stability and safety of the equipment, and is suitable for carbon dioxide capture, solvent regeneration, etc. In the regeneration tower, the application of the defoaming structure not only improves the efficiency of liquid treatment, but also reduces the frequency of equipment maintenance and reduces the operating cost.

[0055] For example, in a carbon dioxide capture system, the defoaming structure can effectively handle the foam brought by the absorption solvent, avoid the foam from blocking the flow channel in the tower, improve the carbon dioxide capture efficiency, and reduce the system energy consumption, which is of great significance for achieving the carbon neutralization target.

[0056] According to the third aspect of the application, a carbon dioxide capture system is provided, including a regeneration tower, and the regeneration tower is the regeneration tower described above. The regeneration tower described above can achieve breaking bubble and guarantee the efficiency of breaking bubble, so the carbon dioxide capture system with the regeneration tower described above also has the advantages described above.

[0057] Specifically, by optimizing the defoaming structure, the carbon dioxide capture system can more efficiently capture and separate carbon dioxide, reduce energy consumption, improve the overall economic and environmental benefits of the system, and be suitable for carbon dioxide emission reduction and resource recycling in industrial fields such as thermal power plants, cement plants, and steel plants. In the carbon dioxide capture system, the regenerator is a key component, and the optimization of the defoaming structure further improves the working performance of the regenerator.

[0058] For example, in the flue gas decarbonization process of a thermal power plant, the defoaming structure can effectively control the foam of the solvent in the regenerator, accelerate the release of carbon dioxide, improve the decarbonization efficiency, and reduce the processing cost, playing an important role in realizing the green and low-carbon power generation mode.

[0059] The defoaming structure, the regenerator containing it, and the carbon dioxide capture system can effectively break the surface tension of the droplets by setting the first bubble-breaking structure 20 on the substrate 10 and the second bubble-breaking structure 40 on the arc-shaped cover 30, promote the rupture of the foam, and improve the defoaming efficiency. The corner design of the first bubble-breaking hole 21 and the gradual change of the number and size of the second bubble-breaking hole 41 further enhance the defoaming effect, effectively prevent the accumulation of foam, and improve the operation stability of the regenerator and the overall efficiency of the carbon dioxide capture system.

[0060] This design can significantly reduce energy consumption and improve production efficiency in practical applications, and has wide industrial application value. For example, in the food industry, the defoaming structure can effectively control the foam during fermentation, avoid foam overflow, and affect the production environment and product quality. In the field of water treatment, the defoaming structure can reduce the overflow problem caused by foam and improve the efficiency and safety of wastewater treatment. In chemical production, the optimized defoaming structure can improve the processing capacity of the tower, reduce the liquid overflow phenomenon caused by foam, ensure the continuity and stability of the production process, reduce production costs, and improve the economic and environmental benefits of enterprises.

[0061] Overall, the defoaming structure and its application in the regenerator and carbon dioxide capture system of the present embodiment not only targets the foam problem in the chemical, petroleum, pharmaceutical, and other industries, but also extends to the food industry, water treatment, environmental protection, and other fields, demonstrating its application potential and value in different industrial environments. Through scientific design and optimization, the defoaming structure not only improves the defoaming efficiency, but also enhances the stability and safety of the equipment, reduces energy consumption, and improves production efficiency, which is of great significance for promoting green and low-carbon production modes and realizing sustainable development. This innovative design provides an efficient and environmentally friendly foam control solution for industrial production, helping enterprises reduce costs, improve product quality, and contribute to environmental protection, demonstrating the social value and innovation potential of technological progress.

[0062] In the description of the application, it needs to be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0063] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0064] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the distinction of corresponding parts, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the scope of protection of the application.

[0065] The above only describes the preferred embodiments of the application and is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A defoaming structure, characterized in that: include: base(10); A first bubble breaking structure (20) is provided on the substrate (10); An arc-shaped cover (30) is provided on the substrate (10); a second bubble breaking structure (40) disposed on the arc-shaped cover (30); Wherein, the first bubble breaking structure (20) comprises a plurality of first bubble breaking holes (21), and each of the first bubble breaking holes (21) has a plurality of corners; The base plate (10) comprises a plurality of first plates (11), a plurality of second plates (12) and a plurality of connecting plates (13), wherein the first plates (11) and the second plates (12) are arranged at intervals, the first plates (11) are located between two adjacent second plates (12), and the connecting plates (13) are connected between the first plates (11) and the second plates (12); The plurality of first bubble-breaking holes (21) form a plurality of first bubble-breaking portions, and each of the first plate bodies (11), each of the second plate bodies (12), and each of the connecting plates (13) is provided with a first bubble-breaking portion; The shape of the first bubble breaking hole (21) in each of the first bubble breaking parts is different.

2. The defoaming structure according to claim 1, characterized in that The number of corners of each of the first bubble-breaking holes (21) is greater than 8.

3. The defoaming structure according to claim 1, characterized in that The second bubble breaking structure (40) comprises a plurality of second bubble breaking holes (41), and each of the second bubble breaking holes (41) has the same number of corners.

4. The defoaming structure according to claim 3, characterized in that The plurality of second bubble-breaking holes (41) form a plurality of second bubble-breaking portions, each of the second bubble-breaking portions includes a plurality of second bubble-breaking holes (41), and the number of the second bubble-breaking holes (41) in each second bubble-breaking portion gradually increases from the top of the arc-shaped cover (30) to the bottom of the arc-shaped cover (30).

5. The defoaming structure according to claim 4, characterized in that: In a direction from the top of the arc-shaped cover (30) to the bottom of the arc-shaped cover (30), the size of the second bubble-breaking hole (41) in the second bubble-breaking portion gradually increases.

6. A regeneration tower, comprising a defoaming structure, characterized in that: The defoaming structure is the defoaming structure according to any one of claims 1 to 5.

7. A carbon dioxide capture system comprising a regeneration tower, characterized in that: The regeneration tower is the regeneration tower according to claim 6.

Images