Carbon capture regeneration tower having Anti-fluctuation tray

Abstract

Disclosed is a carbon capture regeneration tower having an anti-fluctuation tray, comprising a tower body and a tray, the tower body having a first cavity and a first liquid inlet, the tray being disposed in the first cavity, the first liquid inlet being located on a side wall of the tower body above the tray, the tray comprising a liquid receiving tray and multiple gas-liquid contact assemblies, the multiple gas-liquid contact assemblies being connected to the liquid receiving tray, a gas-liquid contact assembly comprising a first tube, a first cover body and a first flow stabilizing member, the first tube being connected to the liquid receiving tray, one end of the first tube being in communication with the lower part of the liquid receiving tray, and the other end of the first tube being in communication with the upper part of the liquid receiving tray. A side wall of the first cover body close to a first opening is provided with an airflow groove, the first cover body is sleeved on the upper end of the first tube, and there is a gap between the first cover body and an outer wall of the first tube. The first flow stabilizing member is disposed in a circumferential direction of the first cover body, and the first flow stabilizing member is provided with through holes.

Description

Carbon capture and regeneration tower with anti-fluctuation tray

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 2024109968026, filed on July 24, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure belongs to the field of carbon capture technology, specifically relating to a carbon capture and regeneration tower with an anti-fluctuation tray. Background Technology

[0004] In a carbon capture system, a regeneration tower is used to regenerate and desorb the absorbent solution (rich solution) that has absorbed carbon dioxide, so that the absorbent can be reused. Since the regeneration tower has a large capacity for processing rich solution and consumes a lot of energy, in order to reduce energy consumption, the rich solution in the regeneration tower is distributed in stages, and the rich solution can transfer mass and heat with the high-temperature carbon dioxide gas desorbed in the regeneration tower during the downward flow.

[0005] In related technologies, the rich liquid feed rate at the top of the regeneration tower is relatively small, making it impossible to use packing for mass and heat transfer between the gas and liquid phases. A tray is required. However, when the gas is discharged from the bubble cap of the tray, the solution on the tray boils, causing violent fluctuations in the liquid level of the tray. Furthermore, the gas-liquid mass and heat transfer effect is poor, and the residual heat in the gas cannot be effectively utilized. Summary of the Invention

[0006] Embodiments of this disclosure provide a carbon capture and regeneration tower with an anti-fluidity tray that can reduce solution fluctuations on the tray and improve gas-liquid mass and heat transfer efficiency.

[0007] A carbon capture and regeneration tower with an anti-fluctuation tray according to an embodiment of the present disclosure includes:

[0008] The tower body has a first cavity and a first liquid inlet;

[0009] A tray is disposed in the first cavity, and the first liquid inlet is located on the side wall of the tower body above the tray. The liquid flowing in through the first liquid inlet flows from the top of the tray to the bottom of the tray and transfers mass and heat with the gas flowing from the bottom of the tray to the top of the tray.

[0010] The tray includes a liquid receiving tray and multiple gas-liquid contact assemblies, which are connected to the liquid receiving tray. Each gas-liquid contact assembly includes:

[0011] The first tube is connected to the liquid receiving tray, one end of the first tube is connected to the lower part of the liquid receiving tray, and the other end of the first tube is connected to the upper part of the liquid receiving tray.

[0012] A first cover has a first chamber with a first opening facing the liquid receiving tray. An airflow groove is provided on the side wall of the first cover near the first opening. The first cover is sleeved on the upper end of the first tube, and there is a gap between the first cover and the outer wall of the first tube.

[0013] The first current stabilizer is disposed around the circumference of the first cover, and the first current stabilizer is provided with through holes.

[0014] This embodiment of the invention, through the arrangement of the gas-liquid contact components, enables the gas flowing from the bottom to the top of the tray to better contact the liquid, improving the contact effect and the heat and mass transfer effect. After entering the first enclosure, the gas can enter the liquid at high speed through the airflow channel, creating disturbance in the liquid and achieving gas-liquid contact and mixing. 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 flow upward after mixing, the gas can flow along the first flow stabilizer, prolonging the gas-liquid mass and heat transfer time, improving the heat and mass transfer effect, and improving the utilization rate of gas waste heat.

[0015] In some embodiments, the first current stabilizer is disc-shaped, and the first current stabilizer and the first cover are coaxially arranged.

[0016] The first flow stabilizer in this embodiment is disc-shaped, which can ensure that the gas discharged from the circumference of the first cover can have a relatively uniform heat and mass transfer effect with the liquid, and can avoid excessive fluctuations in local areas, which would cause the gas pressure in the corresponding area to be inconsistent with the gas pressure in other areas around the first cover. This embodiment can improve the uniformity of gas distribution.

[0017] In some embodiments, the first current stabilizer is a perforated plate; and / or

[0018] The radius r of the first flow stabilizer satisfies: 1 / 3L ≤ r ≤ 1 / 2L, where L is the distance between the axes of two adjacent gas-liquid contact components; and / or

[0019] The end face of the first flow stabilizer near the first cover is a concave conical surface with a taper of 10° to 25°; and / or

[0020] The first current stabilizer also includes a plurality of protrusions, which are disposed on the end face of the first current stabilizer near the first cover, and the protrusions are pyramidal in shape.

[0021] The first flow stabilizer in this embodiment is a perforated plate, which can balance the fluctuation of the liquid surface in the lower region of the perforated plate and ensure the stability of the liquid surface in the upper region. By constraining the radius of the first flow stabilizer, the diffusion range of gas in the solution can be increased, and the heat and mass transfer effect can be improved. By setting the end face of the first flow stabilizer near the first cover as a conical surface, the uniformity of gas distribution 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 this embodiment can guide and equalize the flow, so that the gas and liquid flow along the end face of the first flow stabilizer, increasing the mixing effect.

[0022] In some embodiments, in the height direction of the tower body, the upper end of the airflow channel is lower than the upper end of the first pipe.

[0023] In this embodiment, an air chamber is formed at the upper end of the airflow channel to prevent liquid from flowing directly downward through the airflow channel and the first pipe, ensuring that the upper part of the first pipe has an air chamber and preventing liquid from flowing into the inner cavity of the first pipe.

[0024] In some embodiments, the airflow slots extend along the axial direction of the first cover, and a plurality of the airflow slots are arranged at circumferential intervals along the first cover, wherein at least some of the airflow slots have a longer length in the axial direction of the first cover than the other airflow slots have a longer length in the axial direction of the first cover.

[0025] The size constraint of the airflow channel in this embodiment enables the gas to be discharged in stages. When there is a large fluctuation in the gas pressure in the first tube, the airflow can be stabilized, making the gas discharged from the airflow channel more linear and avoiding violent fluctuations in the liquid surface above the receiving plate due to the gas pressure fluctuation in the first tube.

[0026] In some embodiments, the gas-liquid contact assembly further includes a bushing, which is coaxially sleeved with the first cover and disposed at one end of the first cover near the first opening. Part of the airflow groove is formed on the bushing and the first cover, and the airflow direction of the airflow groove has a first preset angle with the radial direction of the first cover.

[0027] The bushing of this embodiment can increase the wall thickness of the first cover and facilitate the adjustment of the airflow direction of the airflow slots opened on the bushing and the first cover, so that the gas flowing out of the first cover flows in a spiral, thereby improving the gas-liquid mass transfer and heat transfer effect.

[0028] In some embodiments, the first preset included angle is 20° to 45°.

[0029] This embodiment of the invention, by constraining the first preset included angle, can reduce gas resistance and ensure smooth gas flow while ensuring the effectiveness of gas-liquid heat and mass transfer.

[0030] In some embodiments, the first tube has a first contraction section in the middle of its inner cavity, the flow area of ​​the first contraction section is smaller than the flow area of ​​other locations 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 located close to the liquid receiving tray, and the other end of the first hole is connected to the first contraction section.

[0031] The embodiments disclosed herein, through the arrangement of the first contraction section and the first hole, enable a portion of the liquid to enter the first tube through the first hole, resulting in higher humidity in the gas discharged from the first tube, making it easier for the gas and liquid to come into contact and mix, and improving the heat and mass transfer effect when the gas and liquid are mixed.

[0032] In some embodiments, the gas-liquid contact assembly further includes a first support member connected to the liquid receiving tray, and the first cover and the first flow stabilizer are disposed on the first support member.

[0033] The first support member in this embodiment is used to support the first cover and the first current stabilizer, ensuring the effective fixation of the first cover and the first current stabilizer and improving the stability of the structure.

[0034] In some embodiments, the first support member has a first section, which is disposed inside the first tube and coaxially arranged with the first tube. The gas-liquid contact assembly further includes a first pressure stabilizing member, an elastic member is provided between the first pressure stabilizing member and the first cover, and the first pressure stabilizing member is disposed on the first section and movable along the first section to increase or decrease the flow area of ​​the first contraction section.

[0035] The embodiments disclosed herein, through the arrangement of the first pressure stabilizer, can automatically change the flow area of ​​the first contraction section by utilizing the gas pressure in the first pipe, thereby balancing the gas flow pressure in the first pipe and having a pressure stabilizing effect. At the same time, it can balance the gas flow rate in the first pipe and optimize the pressure drop ratio of the tray. Attached Figure Description

[0036] Figure 1 is a schematic diagram of the structure of a carbon capture and regeneration tower with an anti-fluctuation tray according to an embodiment of the present disclosure.

[0037] Figure 2 is a schematic diagram of the structure of the tray in an embodiment of this disclosure.

[0038] Figure 3 is a schematic diagram of the structure of the gas-liquid contact assembly in an embodiment of this disclosure.

[0039] Figure 4 is a schematic diagram of the structure of adjacent gas-liquid contact components in an embodiment of this disclosure.

[0040] Figure 5 is a schematic diagram of the arrangement structure of the airflow channels in an embodiment of this disclosure.

[0041] Figure 6 is a schematic diagram of the structure of the gas-liquid contact assembly in another embodiment of this disclosure.

[0042] Reference numerals: 100, regeneration tower; 1, tower body; 11, first cavity; 12, first liquid inlet; 2, tower tray; 21, receiving tray; 22, gas-liquid contact assembly; 221, first pipe; 222, first cover; 223, first flow stabilizer; 224, protrusion; 225, airflow groove; 226, bushing; 227, first contraction section; 228, first hole; 3, first support; 4, first pressure stabilizer; 41, elastic element. Detailed Implementation

[0043] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0044] The carbon capture and regeneration tower with anti-fluctuation tray of this disclosure is described in detail below with reference to Figures 1-6.

[0045] A carbon capture and regeneration tower 100 with an anti-fluctuation tray according to an embodiment of the present disclosure includes a tower body 1 and a tray 2. The tower body 1 has a first cavity 11 and a first liquid inlet 12. The tray 2 is disposed in the first cavity 11, and the first liquid inlet 12 is located on the side wall of the tower body 1 above the tray 2. The liquid flowing in through the first liquid inlet 12 flows from the top of the tray 2 to the bottom of the tray 2 and transfers mass and heat with the gas flowing from the bottom of the tray 2 to the top of the tray 2.

[0046] The tray 2 includes a liquid receiving tray 21 and multiple gas-liquid contact components 22. The multiple gas-liquid contact components 22 are connected to the liquid receiving tray 21. Each gas-liquid contact component 22 includes a first pipe 221, a first cover 222, and a first flow stabilizer 223. The first pipe 221 is connected to the liquid receiving tray 21. One end of the first pipe 221 is connected to the lower part of the liquid receiving tray 21, and the other end of the first pipe 221 is connected to the upper part of the liquid receiving tray 21. The first cover 222 has a first chamber with a first opening facing the liquid receiving tray 21. An airflow groove 225 is provided on the side wall of the first cover 222 near the first opening. The first cover 222 is fitted onto the upper end of the first pipe 221, and there is a gap between the first cover 222 and the outer wall of the first pipe 221. The first flow stabilizer 223 is disposed around the first cover 222, and through holes are provided on the first flow stabilizer 223.

[0047] It should be understood that in the carbon capture system, the absorbent that has absorbed carbon dioxide is a rich liquid. The rich liquid needs to enter the regeneration tower 100 for regeneration and desorption before being reused. The temperature of the carbon dioxide desorbed during regeneration is around 120°C, and the heat it contains needs to be recovered and utilized. In this embodiment, the tray 2 serves as the place for heat and mass transfer between carbon dioxide gas and the rich liquid, which can optimize and improve the gas-liquid mixing effect, improve the efficiency of heat and mass transfer, and reduce the energy consumption of the regeneration tower 100.

[0048] In this embodiment, the arrangement of the gas-liquid contact assembly 22 allows the gas flowing from the bottom to the top of the tray 2 to better contact the liquid, improving the contact effect and heat and mass transfer. After entering the first cover 222, the gas can be jetted into the liquid at high speed through the airflow channel 225, disturbing the liquid and achieving gas-liquid contact and mixing. The arrangement of the first flow stabilizer 223 reduces 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 flow upward after mixing, the gas can flow along the first flow stabilizer 223. Some gas can flow upward through the through hole, and some gas can further flow and diffuse laterally along the first flow stabilizer 223, extending the gas-liquid mass and heat transfer time, improving the heat and mass transfer effect, and increasing the utilization rate of gas waste heat.

[0049] The tray 2 also has components such as an overflow weir, a downcomer, connectors, and a support base, which can adopt the structure in related technologies, and will not be described in detail here. The embodiments of this disclosure improve the gas-liquid mass and heat transfer effect by optimizing the structure of the gas-liquid contact component 22.

[0050] 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.

[0051] The first flow stabilizer 223 of this embodiment is disc-shaped, which can ensure that the gas discharged from the circumference of the first cover 222 can have a relatively uniform heat and mass transfer effect with the liquid, and can avoid excessive fluctuations in local areas, which would cause the gas pressure in the corresponding area to be inconsistent with the gas pressure in other areas around the first cover 222. This embodiment can improve the uniformity of gas distribution.

[0052] In some embodiments, the first flow stabilizer 223 is a perforated plate. In this embodiment, the first flow stabilizer 223 is a perforated plate, which can balance the fluctuations in the liquid level in the lower region of the perforated plate and ensure the stability of the liquid level in the upper region.

[0053] Furthermore, the radius r of the first flow stabilizer 223 satisfies: 1 / 3L≤r≤1 / 2L, where L is the distance between the axes of two adjacent gas-liquid contact components 22.

[0054] This embodiment of the invention, by constraining the radius of the first flow stabilizer 223, can increase the diffusion range of the gas in the solution and improve the heat and mass transfer effect. When the radius r is less than 1 / 3L, a portion of the gas will not be affected by the first flow stabilizer 223 and will flow directly upward, affecting the recovery and utilization of the waste heat of this portion of the gas. When the radius r is greater than 1 / 2L, interference will occur between the first flow stabilizers 223 in different gas-liquid contact assemblies 22, which is not conducive to installation and arrangement.

[0055] The radius r of the first flow stabilizer 223 and the distance L between the axes of the two adjacent gas-liquid contact components 22 are shown in the figure.

[0056] Furthermore, the end face of the first flow stabilizer 223 near the first cover 222 is a concave conical surface with a taper of 10° to 25°.

[0057] Since the gas continuously diffuses away from the first cover 222, this embodiment of the present disclosure, through the design of a concave conical surface, enables effective mass and heat transfer between the gas and the liquid within the area covered by the first flow stabilizer 223, thereby ensuring the heat and mass transfer effect of the gas and liquid throughout the entire tray 2. This embodiment of the present disclosure, by setting the end face of the first flow stabilizer 223 near the first cover 222 as a conical surface, can improve the uniformity of gas distribution within the area covered by the first flow stabilizer 223, and prevent the gas from continuously diffusing outward along the jet direction of the airflow groove 225.

[0058] The taper of the cone surface is the taper γ shown in the figure. 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 222 is poor, which is not conducive to ensuring that the gas mixes with the liquid and transfers mass and heat in the area covered by the first cover 222 and the first flow stabilizer 223. When the taper γ is too large and greater than 25°, the liquid flow in the middle of the first flow stabilizer is poor, and it is not easy to keep the liquid below the first flow stabilizer flowing, resulting in poor heat and mass transfer effect.

[0059] In some embodiments, the first current stabilizer is a metal plate with a thickness of 0.5 mm to 5 mm, and the through holes on the metal plate are round holes, strip holes, polygonal holes or other irregularly shaped holes.

[0060] Furthermore, the first flow stabilizer 223 also includes a plurality of protrusions 224, which are disposed on the end face of the first flow stabilizer 223 near the first cover 222, and the protrusions 224 are pyramidal in shape. In this embodiment of the present disclosure, the protrusions 224 can achieve the effect of guiding and equalizing flow. The pyramidal protrusions 224 can enable the gas and liquid flowing along the end face of the first flow stabilizer 223 to achieve a mixed state of convergence, diffusion, and reconvergence, thereby increasing the mixing effect when the gas and liquid flow along the end face of the first flow stabilizer 223.

[0061] In some embodiments, in the height direction of the tower body 1, the upper end of the airflow groove 225 is lower than the upper end of the first pipe 221.

[0062] In this embodiment, an air chamber is formed at the upper end of the airflow groove 225 to prevent liquid from flowing directly downward through the airflow groove 225 and the first pipe 221, ensuring that the upper part of the first pipe 221 has an air chamber and preventing liquid from flowing into the inner cavity of the first pipe 221.

[0063] In some embodiments, the airflow slots 225 extend along the axial direction of the first cover 222, and a plurality of airflow slots 225 are arranged at circumferential intervals along the first cover 222. At least some of the airflow slots 225 have a longer length in the axial direction of the first cover 222 than the other airflow slots 225 have a longer length in the axial direction of the first cover 222.

[0064] The size constraint of the airflow channel 225 in this embodiment enables the gas to be discharged in stages. When there is a large fluctuation in the gas pressure in the first pipe 221, the airflow can be stabilized, making the gas discharged from the airflow channel 225 more linear and avoiding violent fluctuations in the liquid surface above the liquid receiving plate 21 due to the gas pressure fluctuation in the first pipe 221.

[0065] Furthermore, since the lower ends of the airflow grooves 225 are flush, the upper ends of some airflow grooves 225 are higher in the axial direction of the first cover 222 than the upper ends of other airflow grooves 225 are higher in the axial direction of the first cover 222.

[0066] In some embodiments, the gas-liquid contact assembly 22 further includes a bushing 226, which is coaxially sleeved with the first cover 222 and is located at one end of the first cover 222 near the first opening. Part of the airflow groove 225 is formed on the bushing 226 and the first cover 222, and the airflow direction of the airflow groove 225 has a first preset angle with the radial direction of the first cover 222.

[0067] The bushing 226 of this embodiment can increase the wall thickness of the first cover 222 and facilitate the adjustment of the airflow direction of the airflow grooves 225 opened on the bushing 226 and the first cover 222, so that the gas flowing out of the first cover 222 flows in a spiral, thereby improving the gas-liquid mass transfer and heat transfer effect.

[0068] In some embodiments, the first preset included angle is 20° to 45°.

[0069] This embodiment of the invention constrains the first preset angle, which can ensure the effect of gas-liquid heat and mass transfer while reducing the impact on gas resistance and ensuring smooth gas flow.

[0070] 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 effect of gas-liquid mass transfer and heat transfer will not be significantly improved. If the first preset angle is greater than 45°, it will affect the gas resistance and affect the pressure drop ratio of tray 2.

[0071] In some embodiments, the inner cavity of the first tube 221 has a first contraction section 227 in the middle, the flow area of ​​the first contraction section 227 is smaller than the flow area of ​​other locations in the inner cavity of the first tube 221, and a first hole 228 is provided on the side wall of the first tube 221. One end of the first hole 228 is located close to the liquid receiving plate 21, and the other end of the first hole 228 is connected to the first contraction section 227.

[0072] The embodiments of this disclosure, through the arrangement of the first contraction section 227 and the first hole 228, enable a portion of the liquid to enter the first tube 221 through the first hole 228, resulting in higher humidity in the gas discharged from the first tube 221, making it easier for the gas and liquid to come into contact and mix, and improving the heat and mass transfer effect when the gas and liquid are mixed.

[0073] It should be understood that the structural arrangement of the first tube 221 and the first hole 228 can create a Venturi effect, which allows the liquid to be drawn into the first tube 221, mixed with the gas, and transferred in mass and heat. After mass and heat transfer with the gas, the liquid is vaporized and forms a mist, which is also more convenient to mix with the liquid in the receiving plate 21, thereby improving the heat and mass transfer effect.

[0074] In some embodiments, the gas-liquid contact assembly 22 further includes a first support member 3, which is connected to the liquid receiving tray 21, and a first cover 222 and a first flow stabilizer 223 are disposed on the first support member 3.

[0075] The first support member 3 in this embodiment is used to support the first cover 222 and the first flow stabilizer 223, ensuring the effective fixation of the first cover 222 and the first flow stabilizer 223 and improving the stability of the structure.

[0076] The first support member 3 is a bent round rod.

[0077] In some embodiments, the first support member 3 has a first section, which is disposed inside the first tube 221 and coaxially disposed with the first tube 221. The gas-liquid contact assembly 22 further includes a first pressure stabilizing member 4. An elastic member 41 is provided between the first pressure stabilizing member 4 and the first cover 222. The first pressure stabilizing member 4 is disposed on the first section and is movable along the first section to increase or decrease the flow area of ​​the first contraction section 227.

[0078] In this embodiment of the invention, the arrangement of the first pressure stabilizer 4 allows the flow area of ​​the first contraction section 227 to be automatically changed by the gas pressure in the first pipe 221, thereby balancing the gas pressure in the first pipe 221 and having a pressure stabilizing effect. At the same time, it can balance the gas flow rate in the first pipe 221 and optimize the pressure drop ratio of the tray 2.

[0079] It should be understood that the elastic element 41 can be a spring. One end of the elastic element 41 is connected to the first cover 222, and the other end of the elastic element 41 is connected to the first pressure stabilizer 4, which plays a pulling role on the first pressure stabilizer 4. Under natural conditions, the elastic element 41 is under the gravity of the first pressure stabilizer 4 and is in a stretched state. When it is subjected to airflow, the first pressure stabilizer 4 will move upward.

[0080] The first voltage stabilizer 4 is a metal block or a composite material block, and the first voltage stabilizer 4 is cylindrical or frustum-shaped.

[0081] When the gas pressure at the bottom of tray 2 is unstable or the pressure drop between the upper and lower sides of tray 2 is too large, the solution on the tray will fluctuate significantly. At the same time, the gas lifter at the trough will briefly emerge from the water surface, and more gas will be discharged directly from here without making effective contact with the solution. The gas lifter at the crest is submerged below the water surface, making it difficult for the gas to be discharged. Therefore, when the solution level fluctuates significantly, it not only affects the uniformity of gas distribution but also the contact effect between gas and solution. The gas and liquid cannot transfer mass and heat well, and the ideal energy saving and consumption reduction goals cannot be achieved in the regeneration process of the carbon capture system.

[0082] The present invention discloses an embodiment that, through the structural design of the gas-liquid contact component 22, can reduce the fluctuation of the liquid surface, ensure the stability of the liquid surface, and improve the gas-liquid contact effect, thereby enhancing the gas-liquid mass and heat transfer effect of the tray 2 and improving the energy-saving and consumption-reducing performance of the regeneration tower 100.

[0083] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0084] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0085] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0086] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0087] In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] It is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A carbon capture and regeneration tower with a fluctuation-proof tray, comprising: a tower body having a first cavity and a first liquid inlet; a tray disposed in the first cavity, the first liquid inlet being located on the sidewall of the tower body above the tray, liquid flowing in through the first liquid inlet flowing from the top of the tray to the bottom of the tray, and mass and heat transfer occurring between the liquid flowing from the bottom of the tray to the top of the tray and the gas flowing from the top of the tray to the bottom of the tray; the tray comprising a receiving tray and a plurality of gas-liquid contact assemblies connected to the receiving tray, the gas-liquid contact assembly comprising: a first pipe connected to the receiving tray, one end of the first pipe being in communication with the lower part of the receiving tray, and the other end of the first pipe being in communication with the upper part of the receiving tray; a first cover body having a first chamber with a first opening facing the receiving tray, a sidewall of the first cover body near the first opening being provided with a gas flow groove, the first cover body being sleeved on the upper end of the first pipe, and a gap being formed between the first cover body and the outer wall of the first pipe; and a first flow stabilizer disposed on the circumference of the first cover body, the first flow stabilizer being provided with through holes. 2.The carbon capture and regeneration tower with the fluctuation-proof tray according to claim 1, wherein the first flow stabilizer is disc-shaped, and the first flow stabilizer and the first cover body are coaxially arranged. the first flow stabilizer is a mesh plate; and / or the radius r of the first flow stabilizer satisfies 1 / 3L≤r≤1 / 2L, wherein L is the distance between the axes of two adjacent gas-liquid contact assemblies; and / or the end face of the first flow stabilizer near the first cover body is a concave conical surface, and the taper of the conical surface is 10° to 25°; and / or the first flow stabilizer further comprises a plurality of protrusions disposed on the end face of the first flow stabilizer near the first cover body, and the protrusions are in the shape of pyramids. In the height direction of the tower body, the upper end of the gas flow groove is lower than the upper end of the first pipe. The gas flow groove extends along the axis direction of the first cover body, a plurality of gas flow grooves are arranged at intervals in the circumferential direction of the first cover body, and the length dimension of at least part of the gas flow grooves in the axis direction of the first cover body is greater than the length dimension of other gas flow grooves in the axis direction of the first cover body.

3. The carbon capture regeneration tower with a surge tray according to claim 1 or 2, characterized in that, The gas-liquid contact assembly further comprises a bushing coaxially sleeved with the first cover body, and the bushing is disposed at one end of the first cover body near the first opening, part of the gas flow grooves are formed on the bushing and the first cover body, and the gas flow direction of the gas flow grooves has a first preset included angle with the radial direction of the first cover body. 7.The carbon capture and regeneration tower with the fluctuation-proof tray according to claim 6, wherein the first preset included angle is 20° to 45°. The middle part of the inner cavity of the first pipe has a first contraction section, the flow area of the first contraction section is smaller than the flow area of other positions in the inner cavity of the first pipe, the sidewall of the first pipe is provided with a first hole, one end of the first hole is disposed near the receiving tray, and the other end of the first hole is in communication with the first contraction section. ​ 4. The carbon capture regeneration tower with a surge tray of any one of claims 1 to 3, wherein, ​ 5. The carbon capture regeneration tower with a surge tray of any one of claims 1 to 4, wherein, ​ 6. The carbon capture regeneration tower with a surge tray of any one of claims 1 to 5, wherein, ​ ​ 8. The carbon capture regeneration tower with a surge tray of any one of claims 1 to 7, wherein, ​ 9. The carbon capture regeneration tower with a surge tray of any one of claims 1 to 8, wherein, The gas-liquid contactor further comprises a first support connected with the liquid receiving disc, and the first cover and the first flow stabilizer are arranged on the first support.

10. The carbon capture regeneration tower with a surge tray of claim 9, wherein, The first support has a first section arranged in the first pipe and coaxially arranged with the first pipe, and the gas-liquid contactor further comprises a first pressure stabilizer, and an elastic member is arranged between the first pressure stabilizer and the first cover, the first pressure stabilizer is arranged on the first section and movable along the first section, so as to increase or decrease the flow area of the first contraction section.

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