Carbon capture regeneration column with surge tray

Abstract

The application discloses a carbon capture regeneration tower with an anti-fluctuation tray, which comprises a tower body and a tray, the tower body is provided with a first cavity and a first liquid inlet, the tray is arranged in the first cavity, the first liquid inlet is arranged on the side wall of the tower body above the tray, the tray comprises a liquid receiving tray and a plurality of gas-liquid contact assemblies, the plurality of gas-liquid contact assemblies are connected to the liquid receiving tray, the gas-liquid contact assembly comprises a first pipe, a first cover body and a first flow stabilizer, the first pipe is connected to the liquid receiving tray, one end of the first pipe is communicated with the lower part of the liquid receiving tray, and the other end of the first pipe is communicated with the upper part of the liquid receiving tray; the side wall of the first cover body close to the first opening is provided with an air flow groove, the first cover body is sleeved on the upper end of the first pipe, and a gap is formed between the first cover body and the outer wall of the first pipe; the first flow stabilizer is arranged in the circumferential direction of the first cover body, and a through hole is arranged on the first flow stabilizer. The application can reduce the solution fluctuation on the tray and improve the gas-liquid mass transfer and heat transfer efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon capture, and in particular relates to a carbon capture regeneration tower with an anti-fluctuation tower tray. Background Art

[0002] In the carbon capture system, the regeneration tower is used to regenerate and desorb the absorbent solution (rich liquid) that has absorbed carbon dioxide, so that the absorbent can be reused. Since the regeneration tower has a large processing volume for rich liquid and consumes a lot of energy, in order to reduce energy consumption, the rich liquid in the regeneration tower is distributed in a segmented manner, and the rich liquid can transfer mass and heat with the high-temperature carbon dioxide gas desorbed in the regeneration tower during the downward flow.

[0003] In the related art, the amount of rich liquid inlet at the top of the regeneration tower is small, and fillers cannot be used for mass transfer and heat transfer between the gas phase and the liquid phase. A tower tray is required. However, when the gas is discharged from the bubble cap of the tower tray, the solution on the tower tray is in a boiling state, causing the liquid level of the tower tray to fluctuate violently, and the gas-liquid mass transfer and heat transfer effect is poor, and the waste heat in the gas cannot be effectively utilized. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides a carbon capture and regeneration tower with an anti-fluctuation tray, which can reduce solution fluctuation on the tray and improve gas-liquid mass and heat transfer efficiency.

[0006] The carbon capture and regeneration tower with an anti-surge tray according to an embodiment of the present invention includes:

[0007] a tower body, the tower body having a first cavity and a first liquid inlet;

[0008] a tower tray, the tower tray being disposed in the first cavity, the first liquid inlet being located on the side wall of the tower body above the tower tray, the liquid flowing in through the first liquid inlet flowing from the top of the tower tray to the bottom of the tower tray and conducting mass and heat transfer with the gas flowing from the bottom of the tower tray to the top of the tower tray;

[0009] The tower tray includes a liquid receiving tray and a plurality of gas-liquid contact components, wherein the plurality of gas-liquid contact components are connected to the liquid receiving tray, and the gas-liquid contact components include:

[0010] a first tube connected to the liquid receiving pan, one end of the first tube communicating with a lower portion of the liquid receiving pan, and the other end of the first tube communicating with an upper portion of the liquid receiving pan;

[0011] a first cover body, the first cover body having a first chamber, the first chamber having a first opening facing the liquid receiving pan, an air flow groove being provided on a side wall of the first cover body near the first opening, the first cover body being sleeved on the upper end of the first tube, and a gap being defined between the first cover body and the outer wall of the first tube;

[0012] A first flow stabilizing member is provided on the circumference of the first cover body and is provided with through holes.

[0013] The embodiment of the present invention arranges the gas-liquid contact component so that the gas flowing from the bottom of the tower plate to the top of the tower plate can better contact with the liquid, thereby improving the contact effect and the heat and mass transfer effect. After entering the first cover body, the gas can enter the liquid at high speed through the air flow groove, causing disturbance to the liquid and achieving contact and mixing of gas and liquid. Through the arrangement of the first flow stabilizer, the influence of the disturbed liquid on the upper liquid surface can be reduced, ensuring that the liquid surface is relatively stable. At the same time, when the gas and liquid are mixed and flow upward, the gas can flow along the first flow stabilizer, extending the gas-liquid mass and heat transfer time, improving the heat and mass transfer effect, and improving the utilization rate of the gas waste heat.

[0014] In some embodiments, the first flow stabilizing member is disc-shaped, and the first flow stabilizing member and the first cover are coaxially arranged.

[0015] The first flow stabilizer of the embodiment of the present invention is disc-shaped, which can ensure that the gas discharged from the circumference of the first cover body can achieve relatively uniform heat and mass transfer effects with the liquid, and can avoid excessive fluctuations in local areas, resulting in inconsistent air pressure in the corresponding area with the air pressure in other circumferential areas of the first cover body. The embodiment of the present invention can improve the uniformity of gas distribution.

[0016] In some embodiments, the first flow stabilizing member is a mesh plate;

[0017] And / or, the radius r of the first flow stabilizing member satisfies: 1 / 3L≤r≤1 / 2L, wherein L is the distance between the axes of two adjacent gas-liquid contact components;

[0018] And / or, the end surface of the first flow stabilizer close to the first cover is a concave conical surface, and the taper of the conical surface is 10° to 25°;

[0019] And / or, the first flow stabilizing member further includes a plurality of protrusions, the protrusions are provided on an end surface of the first flow stabilizing member close to the first cover body, and the protrusions are pyramid-shaped.

[0020] The first flow stabilizer in the embodiment of the present invention is a mesh plate, which can balance the fluctuation of the liquid level in the lower area of ​​the mesh plate and ensure the stability of the liquid level in the upper area. By constraining the radius of the first flow stabilizer, the diffusion range of the gas in the solution can be increased, and the heat and mass transfer effects can be improved. By setting the end face of the first flow stabilizer close to the first cover body to a conical surface, the uniformity of the distribution of the gas in the area covered by the first flow stabilizer can be improved, and the gas can be prevented from continuously diffusing outward along the jet direction of the airflow groove. The protrusion in the embodiment of the present invention can have the effect of diversion and equalization, thereby increasing the mixing effect when the gas and liquid flow along the end face of the first flow stabilizer.

[0021] In some embodiments, in the height direction of the tower body, the upper end of the air flow slot is lower than the upper end of the first tube.

[0022] An air chamber is formed at the upper end of the air flow groove in the embodiment of the present invention, which prevents liquid from flowing directly downward through the air flow groove and the first tube, ensures that the upper part of the first tube has an air chamber and can prevent liquid from flowing into the inner cavity of the first tube.

[0023] In some embodiments, the airflow groove extends along the axial direction of the first cover body, and multiple airflow grooves are arranged at intervals along the circumference of the first cover body, and the length dimension of at least some of the airflow grooves in the axial direction of the first cover body is greater than the length dimension of other airflow grooves in the axial direction of the first cover body.

[0024] The size constraints of the air flow grooves in the embodiment of the present invention enable the gas to be discharged step by step. When there are large fluctuations in the gas pressure in the first tube, the air flow can be stabilized, so that the gas discharged from the air flow grooves is closer to a linear change, thereby avoiding drastic fluctuations in the liquid level above the liquid receiving pan due to fluctuations in the gas pressure in the first tube.

[0025] In some embodiments, the gas-liquid contact assembly further includes a sleeve, which is coaxially sleeved with the first cover body, and the sleeve is arranged at one end of the first cover body close to the first opening, and part of the air flow groove is opened on the sleeve and the first cover body, and the air flow direction of the air flow groove has a first preset angle with the radial direction of the first cover body.

[0026] The bushing of the embodiment of the present invention can increase the wall thickness of the first cover body and facilitate the adjustment of the airflow direction of the airflow grooves opened on the bushing and the first cover body, so that the gas flowing out of the first cover body flows in a spiral manner, thereby improving the gas-liquid mass transfer and heat transfer effect.

[0027] In some embodiments, the first preset angle is 20° to 45°.

[0028] The embodiment of the present invention constrains the first preset angle, thereby ensuring the effect of gas-liquid heat and mass transfer while reducing gas resistance and ensuring smooth flow of gas.

[0029] In some embodiments, the first tube has a first contraction section in the middle of the inner cavity, the flow area of ​​the first contraction section is smaller than the flow area at other positions in the inner cavity of the first tube, and a first hole is provided on the side wall of the first tube, one end of the first hole is arranged close to the liquid receiving pan, and the other end of the first hole is connected to the first contraction section.

[0030] The embodiment of the present invention, through the provision of the first contraction section and the first hole, can allow part of the liquid to enter the first tube through the first hole, so that the humidity of the gas discharged from the first tube is higher, making it easier for the gas and liquid to contact and mix, and the heat and mass transfer effect is better when the gas and liquid are mixed.

[0031] In some embodiments, a first support member is further included, wherein the first support member is connected to the liquid receiving pan, and the first cover body and the first flow stabilizing member are arranged on the first support member.

[0032] The first support member of the embodiment of the present invention is used to support the first cover body and the first flow stabilizing member, thereby ensuring effective fixation of the first cover body and the first flow stabilizing member and improving the stability of the structure.

[0033] In some embodiments, the first support member has a first section, the first section is arranged in the first tube and coaxially arranged with the first tube, the gas-liquid contact assembly also includes a first pressure stabilizer, an elastic member is provided between the first pressure stabilizer and the first cover body, the first pressure stabilizer is arranged on the first section and is movable along the first section to increase or decrease the flow area of ​​the first contraction section.

[0034] The embodiment of the present invention can automatically change the flow area of ​​the first contraction section by arranging the first pressure stabilizer through the gas pressure in the first tube, thereby balancing the airflow pressure in the first tube, having a pressure stabilizing effect, and at the same time being able to balance the gas flow rate in the first tube and optimize the pressure drop ratio of the tower plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a carbon capture and regeneration tower with an anti-wave tray according to an embodiment of the present invention.

[0036] Figure 2 Schematic diagram of the structure of the tower tray in an embodiment of the present invention.

[0037] Figure 3 Schematic diagram of the structure of the gas-liquid contact component in an embodiment of the present invention.

[0038] Figure 4 Schematic diagram of the structure of adjacent gas-liquid contact components in an embodiment of the present invention.

[0039] Figure 5Schematic diagram of the arrangement structure of the air flow slots in an embodiment of the present invention.

[0040] Figure 6 Schematic diagram of the structure of a gas-liquid contact assembly in another embodiment of the present invention.

[0041] Reference numerals:

[0042] 100. Regeneration tower;

[0043] 1. Tower body; 11. First cavity; 12. First liquid inlet;

[0044] 2. Tower tray; 21. Liquid receiving tray; 22. Gas-liquid contact assembly; 221. First tube; 222. First cover; 223. First flow stabilizer; 224. Protrusion; 225. Air flow groove; 226. Bushing; 227. First contraction section; 228. First hole;

[0045] 3. a first support member;

[0046] 4. First voltage stabilizing component; 41. Elastic component. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0048] The following is combined with Figures 1-6 A carbon capture and regeneration tower with an anti-surge tray according to an embodiment of the present invention is described in detail.

[0049] According to an embodiment of the present invention, a carbon capture and regeneration tower 100 with an anti-wave tray includes a tower body 1 and a tower tray 2. The tower body 1 has a first cavity 11 and a first liquid inlet 12. The tower tray 2 is arranged in the first cavity 11, and the first liquid inlet 12 is located on the side wall of the tower body 1 above the tower tray 2. The liquid flowing in through the first liquid inlet 12 flows from the top of the tower tray 2 to the bottom of the tower tray 2, and transfers mass and heat with the gas flowing from the bottom of the tower tray 2 to the top of the tower tray 2.

[0050] The tower tray 2 includes a liquid receiving tray 21 and multiple gas-liquid contact components 22, and the multiple gas-liquid contact components 22 are connected to the liquid receiving tray 21. The gas-liquid contact component 22 includes a first tube 221, a first cover body 222 and a first flow stabilizer 223. The first tube 221 is connected to the liquid receiving tray 21, one end of the first tube 221 is communicated with the bottom of the liquid receiving tray 21, and the other end of the first tube 221 is communicated with the top of the liquid receiving tray 21; the first cover body 222 has a first chamber, the first chamber has a first opening facing the liquid receiving tray 21, and an air flow groove 225 is provided on the side wall of the first cover body 222 near the first opening. The first cover body 222 is sleeved on the upper end of the first tube 221, and there is a gap between the first cover body 222 and the outer wall of the first tube 221; the first flow stabilizer 223 is arranged on the circumference of the first cover body 222, and the first flow stabilizer 223 is provided with through holes.

[0051] It should be understood that in the carbon capture system, the absorbent that absorbs carbon dioxide is a rich liquid, and the rich liquid needs to enter the regeneration tower 100 for regeneration and desorption before being reused. The temperature of the carbon dioxide regenerated and desorbed is about 120°C, and the heat it contains needs to be recycled. The tower tray 2 in the embodiment of the present invention serves as a place for heat and mass transfer between carbon dioxide gas and rich liquid, which can optimize and enhance the gas-liquid mixing effect, improve the efficiency of heat and mass transfer, and reduce the energy consumption of the regeneration tower 100.

[0052] The embodiment of the present invention arranges the gas-liquid contact component 22 so that the gas flowing from the bottom of the tower plate 2 to the top of the tower plate 2 can better contact with the liquid, thereby improving the contact effect and the heat and mass transfer effect. After entering the first cover body 222, the gas can enter the liquid through the air flow groove 225 at high speed, causing disturbance to the liquid and realizing contact and mixing of gas and liquid. The arrangement of the first flow stabilizer 223 can reduce the influence of the disturbed liquid on the upper liquid surface, ensuring that the liquid surface is relatively stable. At the same time, when the gas and liquid are mixed and flow upward, the gas can flow along the first flow stabilizer 223, part of the gas can flow upward through the through hole, and part of the gas can further flow and diffuse laterally along the first flow stabilizer 223, thereby extending the time of gas-liquid mass and heat transfer, improving the heat and mass transfer effect, and improving the utilization rate of gas waste heat.

[0053] The tower plate 2 also has components such as an overflow weir, a downcomer, connectors, and a support base, which can adopt structures in related technologies and will not be described here. The embodiment of the present invention improves the gas-liquid mass and heat transfer effect by optimizing the structure of the gas-liquid contact assembly 22.

[0054] In some embodiments, the first flow stabilizer 223 is disc-shaped, and the first flow stabilizer 223 and the first cover 222 are coaxially arranged.

[0055] The first flow stabilizer 223 of the embodiment of the present invention is disc-shaped, which can ensure that the gas discharged from the circumference of the first cover body 222 can achieve relatively uniform heat and mass transfer effects with the liquid, and can avoid excessive fluctuations in local areas, resulting in the air pressure in the corresponding area being inconsistent with the air pressure in other circumferential areas of the first cover body 222. The embodiment of the present invention can improve the uniformity of gas distribution.

[0056] In some embodiments, the first flow stabilizer 223 is a mesh plate, which can balance the fluctuation of the liquid level in the lower area of ​​the mesh plate and ensure the stability of the liquid level in the upper area.

[0057] Furthermore, the radius r of the first flow stabilizing member 223 satisfies: 1 / 3L≤r≤1 / 2L, wherein L is the distance between the axes of two adjacent gas-liquid contact assemblies 22 .

[0058] By constraining the radius of the first flow stabilizer 223, the present embodiment can increase the diffusion range of gas in the solution and enhance heat and mass transfer. When the radius r is less than 1 / 3L, some gas will not be affected by the first flow stabilizer 223 and will flow directly upward, affecting the recovery of waste heat from this gas. When the radius r is greater than 1 / 2L, interference between the first flow stabilizers 223 in different gas-liquid contact assemblies 22 may occur, hindering installation and layout.

[0059] The radius r of the first flow stabilizer 223 and the distance L between the axes of two adjacent gas-liquid contact assemblies 22 are shown in the figure.

[0060] Furthermore, the end surface of the first flow stabilizer 223 close to the first cover body 222 is a concave conical surface, and the taper of the conical surface is 10° to 25°.

[0061] Because the gas will continue to diffuse away from the first cover 222, the concave conical surface design of the embodiment of the present invention allows the gas to effectively transfer mass and heat with the liquid within the area covered by the first flow stabilizer 223, thereby ensuring the heat and mass transfer between the gas and liquid throughout the tray 2. By configuring the end surface of the first flow stabilizer 223, which is adjacent to the first cover 222, as a conical surface, the embodiment of the present invention can improve the uniformity of the gas distribution within the area covered by the first flow stabilizer 223 and prevent the gas from continuing to diffuse outward along the jet direction of the gas flow slot 225.

[0062] The taper of the conical surface is the taper γ shown in the figure, and the taper γ can be 10°, 13°, 17°, 21° or 25°. When the taper γ is too small and less than 10°, the effect of suppressing the diffusion of gas away from the first cover body 222 is poor, which is not conducive to ensuring that the gas is mixed with the liquid and transfers mass and heat in the area covered by the first cover body 222 and the first flow stabilizer 223. When the taper γ is too large and greater than 25°, the fluidity of the liquid in the middle of the first flow stabilizer is poor, and it is not easy for the liquid below the first flow stabilizer to keep flowing, and the heat and mass transfer effect is poor.

[0063] Optionally, the first flow stabilizer is a metal plate with a thickness of 0.5 mm to 5 mm, and the through holes formed on the metal plate are circular holes, strip holes, polygonal holes or special-shaped holes of other shapes.

[0064] Furthermore, the first flow stabilizer 223 includes a plurality of protrusions 224, which are provided on the end surface of the first flow stabilizer 223 near the first cover 222. The protrusions 224 are pyramidal in shape. The protrusions 224 in this embodiment of the present invention can achieve both flow diversion and flow balance. The pyramidal protrusions 224 can cause the gas and liquid flowing along the end surface of the first flow stabilizer 223 to converge, diffuse, and then converge again, thereby enhancing the mixing effect of gas and liquid flowing along the end surface of the first flow stabilizer 223.

[0065] In some embodiments, in the height direction of the tower body 1 , the upper end of the air flow slot 225 is lower than the upper end of the first tube 221 .

[0066] An air chamber is formed at the upper end of the air flow groove 225 of the embodiment of the present invention to prevent liquid from flowing directly downward through the air flow groove 225 and the first tube 221, thereby ensuring that the upper part of the first tube 221 has an air chamber and can prevent liquid from flowing into the inner cavity of the first tube 221.

[0067] In some embodiments, the air flow groove 225 extends along the axial direction of the first cover body 222, and multiple air flow grooves 225 are arranged at intervals along the circumference of the first cover body 222, and the length dimension of at least some of the air flow grooves 225 in the axial direction of the first cover body 222 is greater than the length dimension of other air flow grooves 225 in the axial direction of the first cover body 222.

[0068] The size constraints of the air flow groove 225 in the embodiment of the present invention enable the gas to be discharged step by step. When there are large fluctuations in the gas pressure in the first tube 221, the air flow can be stabilized, so that the gas discharged from the air flow groove 225 is closer to a linear change, thereby avoiding the drastic fluctuation of the liquid level above the liquid receiving pan 21 due to the gas pressure fluctuation in the first tube 221.

[0069] Furthermore, the lower ends of the air flow slots 225 are flush, and the upper ends of some of the air flow slots 225 are higher in the axial direction of the first cover body 222 than the upper ends of other air flow slots 225 in the axial direction of the first cover body 222 .

[0070] In some embodiments, the gas-liquid contact assembly 22 also includes a sleeve 226, which is coaxially sleeved with the first cover body 222, and the sleeve 226 is arranged at one end of the first cover body 222 close to the first opening, and part of the air flow groove 225 is opened on the sleeve 226 and the first cover body 222, and the air flow direction of the air flow groove 225 has a first preset angle with the radial direction of the first cover body 222.

[0071] The bushing 226 of the embodiment of the present invention can increase the wall thickness of the first cover body 222, and facilitate the adjustment of the airflow direction of the airflow groove 225 opened on the bushing 226 and the first cover body 222, so that the gas flowing out of the first cover body 222 flows in a spiral manner, thereby improving the gas-liquid mass transfer and heat transfer effect.

[0072] In some embodiments, the first preset angle is 20° to 45°.

[0073] By constraining the first preset angle, the embodiment of the present invention can reduce the impact on gas resistance while ensuring the effect of gas-liquid heat and mass transfer, thereby ensuring smooth flow of gas.

[0074] The first preset angle is the angle β shown in the figure. The first preset angle β is 20°, 32°, 38° or 45°. If the first preset angle is less than 20°, the gas-liquid mass transfer and heat transfer effect will not be significantly improved. If the first preset angle is greater than 45°, it will affect the gas resistance and the pressure drop ratio of the tower plate 2.

[0075] In some embodiments, a first contraction section 227 is provided in the middle of the inner cavity of the first tube 221, and the flow area of ​​the first contraction section 227 is smaller than the flow area at other positions in the inner cavity of the first tube 221. A first hole 228 is provided on the side wall of the first tube 221, and one end of the first hole 228 is arranged close to the liquid receiving pan 21, and the other end of the first hole 228 is connected to the first contraction section 227.

[0076] In the embodiment of the present invention, by setting the first contraction section 227 and the first hole 228, part of the liquid can enter the first tube 221 through the first hole 228, so that the humidity of the gas discharged from the first tube 221 is higher, which makes it easier for the gas and liquid to contact and mix, and the heat and mass transfer effect is better when the gas and liquid are mixed.

[0077] It should be understood that the structural arrangement of the first tube 221 and the first hole 228 can form a Venturi effect, so that the liquid is sucked into the first tube 221, and then mixed with the gas, and mass and heat are transferred. After mass and heat transfer with the gas, the liquid is vaporized and forms a mist, which is also more convenient to dissolve with the liquid in the liquid receiving pan 21, thereby improving the heat and mass transfer effect.

[0078] In some embodiments, the gas-liquid contact assembly 22 further includes a first support member 3 , which is connected to the liquid receiving pan 21 , and a first cover 222 and a first flow stabilizer 223 are disposed on the first support member 3 .

[0079] The first support member 3 of the embodiment of the present invention is used to support the first cover 222 and the first flow stabilizer 223 , thereby ensuring effective fixation of the first cover 222 and the first flow stabilizer 223 and improving the stability of the structure.

[0080] The first support member 3 is a bent round rod.

[0081] In some embodiments, the first support member 3 has a first section, which is arranged in the first tube 221 and coaxially with the first tube 221. The gas-liquid contact assembly 22 also includes a first pressure stabilizer 4. An elastic member 41 is provided between the first pressure stabilizer 4 and the first cover body 222. The first pressure stabilizer 4 is arranged on the first section and is movable along the first section to increase or decrease the flow area of ​​the first contraction section 227.

[0082] The embodiment of the present invention can automatically change the flow area of ​​the first contraction section 227 by arranging the first pressure stabilizer 4 by utilizing the air pressure in the first tube 221, thereby balancing the airflow pressure in the first tube 221, having a pressure stabilizing effect, and at the same time being able to balance the gas flow rate in the first tube 221 and optimize the pressure drop ratio of the tower plate 2.

[0083] It should be understood that the elastic member 41 can be a spring, one end of the elastic member 41 is connected to the first cover body 222, and the other end of the elastic member 41 is connected to the first pressure stabilizer 4, which has a pulling effect on the first pressure stabilizer 4. In the natural state, the elastic member 41 is affected by the gravity of the first pressure stabilizer 4 and is in a stretched state. When affected by the airflow, the first pressure stabilizer 4 will move upward.

[0084] The first pressure stabilizing member 4 is a metal block or a composite material block, and is cylindrical or frustum-shaped.

[0085] When the air pressure at the bottom of the tray 2 is unstable or the pressure drop between the upper and lower sides of the tray 2 is too large, the solution on the tray will fluctuate greatly. At the same time, the gas lift cap at the trough position will briefly emerge from the water surface, and more gas will be discharged directly from here and cannot effectively contact the solution. The gas lift cap at the peak position is immersed below the water surface, making it difficult for the gas to be discharged. Therefore, when the solution level fluctuates greatly, it not only affects the uniformity of the gas distribution, but also affects the contact effect between the gas and the solution. The gas and liquid cannot transfer mass and heat well, and the ideal energy saving and consumption reduction goal cannot be achieved during the regeneration process of the carbon capture system.

[0086] The embodiment of the present invention can reduce the fluctuation of the liquid level and ensure the stability of the liquid level through the structural design of the gas-liquid contact component 22, while improving the gas-liquid contact effect, thereby improving the gas-liquid mass and heat transfer effect of the tower tray 2 and improving the energy-saving and consumption-reducing performance of the regeneration tower 100.

[0087] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0088] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0089] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0090] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0091] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0092] It is understood that the above embodiments are exemplary and are not to be construed as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A carbon capture and regeneration tower with an anti-wave tray, characterized in that: include: a tower body, the tower body having a first cavity and a first liquid inlet; a tower tray, the tower tray being disposed in the first cavity, the first liquid inlet being located on the side wall of the tower body above the tower tray, the liquid flowing in through the first liquid inlet flowing from the top of the tower tray to the bottom of the tower tray and conducting mass and heat transfer with the gas flowing from the bottom of the tower tray to the top of the tower tray; The tower tray includes a liquid receiving tray and a plurality of gas-liquid contact components, wherein the plurality of gas-liquid contact components are connected to the liquid receiving tray, and the gas-liquid contact components include: a first tube connected to the liquid receiving pan, one end of the first tube communicating with a lower portion of the liquid receiving pan, and the other end of the first tube communicating with an upper portion of the liquid receiving pan; a first cover body, the first cover body having a first chamber, the first chamber having a first opening facing the liquid receiving pan, an air flow groove being provided on a side wall of the first cover body near the first opening, the first cover body being sleeved on the upper end of the first tube, and a gap being defined between the first cover body and the outer wall of the first tube; a first flow stabilizer, which is arranged around the circumference of the first cover and is provided with through holes. The arrangement of the first flow stabilizer can reduce the impact of the disturbed liquid on the upper liquid surface, ensuring a relatively stable liquid surface. At the same time, when the gas and liquid mix and flow upward, the gas can flow along the first flow stabilizer, with part of the gas flowing upward through the through holes and part of the gas further flowing and diffusing laterally along the first flow stabilizer, thereby extending the time for gas-liquid mass and heat transfer; A first contraction section is provided in the middle of the inner cavity of the first tube, and the flow area of ​​the first contraction section is smaller than the flow area at other positions in the inner cavity of the first tube. A first hole is provided on the side wall of the first tube, and one end of the first hole is arranged close to the liquid receiving pan, and the other end of the first hole is connected to the first contraction section.

2. The carbon capture and regeneration tower with an anti-surge tray according to claim 1, characterized in that: The first flow stabilizing member is disc-shaped, and the first flow stabilizing member and the first cover are coaxially arranged.

3. The carbon capture and regeneration tower with an anti-surge tray according to claim 2, characterized in that: The first flow stabilizing member is a mesh plate; And / or, the radius r of the first flow stabilizing member satisfies: 1 / 3L≤r≤1 / 2L, wherein L is the distance between the axes of two adjacent gas-liquid contact components; And / or, the end surface of the first flow stabilizer close to the first cover is a concave conical surface, and the taper of the conical surface is 10° to 25°; And / or, the first flow stabilizing member further includes a plurality of protrusions, the protrusions are provided on an end surface of the first flow stabilizing member close to the first cover body, and the protrusions are pyramid-shaped.

4. The carbon capture and regeneration tower with an anti-surge tray according to claim 1, characterized in that: In the height direction of the tower body, the upper end of the air flow slot is lower than the upper end of the first tube.

5. The carbon capture and regeneration tower with an anti-surge tray according to claim 4, characterized in that: The airflow groove extends along the axial direction of the first cover body, and multiple airflow grooves are arranged at intervals along the circumference of the first cover body. The length dimension of at least some of the airflow grooves in the axial direction of the first cover body is greater than the length dimension of other airflow grooves in the axial direction of the first cover body.

6. The carbon capture and regeneration tower with an anti-surge tray according to claim 5, characterized in that: The gas-liquid contact assembly also includes a sleeve, which is coaxially sleeved with the first cover body and is arranged at one end of the first cover body close to the first opening. Part of the air flow groove is opened on the sleeve and the first cover body, and the air flow direction of the air flow groove has a first preset angle with the radial direction of the first cover body.

7. The carbon capture and regeneration tower with an anti-surge tray according to claim 6, characterized in that: The first preset angle is 20° to 45°.

8. The carbon capture and regeneration tower with an anti-surge tray according to claim 1, characterized in that: It also includes a first support member, which is connected to the liquid receiving pan, and the first cover and the first flow stabilizing member are arranged on the first support member.

9. The carbon capture and regeneration tower with an anti-surge tray according to claim 8, characterized in that: The first support member has a first section, which is arranged in the first tube and coaxially with the first tube. The gas-liquid contact assembly also includes a first pressure stabilizer, an elastic member is provided between the first pressure stabilizer and the first cover body, and the first pressure stabilizer is arranged on the first section and is movable along the first section to increase or decrease the flow area of ​​the first contraction section.

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