Regeneration tower and carbon dioxide capture system having the regeneration tower

Abstract

Embodiments of the present application provide a regeneration tower and a carbon dioxide capture system with the same. The regeneration tower of the embodiments of the present application comprises a tower body, a support reinforcement and a detector. The side wall of the tower body has a detection port, a rich liquid inlet, a lean liquid outlet and a gas phase outlet, the lean liquid outlet is located at the bottom of the tower body, and the gas phase outlet is located at the top of the tower body; one end of the support reinforcement is arranged on the inner wall of the tower body and extends towards the inside of the tower body, and the support reinforcement has a fixing point; the detector is inserted into the tower body through the detection port and is fixed on the fixing point. The added support reinforcement can reinforce the rod structure of the detector and prevent the rod part of the detector from swinging under the impact of airflow or solid particles. Therefore, the regeneration tower according to the embodiments of the present application has the advantage of improving the data accuracy of the detector in the tower body.

Description

Technical Field

[0001] This invention relates to the field of carbon dioxide recovery technology, and more specifically to a regeneration tower and a carbon dioxide capture system having the regeneration tower. Background Technology

[0002] Carbon dioxide released from thermal power plants or boilers is absorbed by an absorption tower, and then desorbed upon heating in a regeneration tower, allowing the carbon dioxide to separate from the absorbent liquid. In related technologies, various types of sensors need to be installed inside the regeneration tower for monitoring. However, due to the large inner diameter of the tower, the corresponding detectors extend into the middle of the tower, with the length from the inner wall of the tower to the detection point generally exceeding 1000 mm. If the cantilever length of the detector rod or tube is too long, it may sway due to the influence of turbulence, bubbles, or solid particles, leading to inaccurate readings and affecting the detection results. Summary of the Invention

[0003] This invention aims to at least partially address one of the technical problems in related technologies. To this end, embodiments of this invention propose a regeneration tower. This regeneration tower has the advantage of improving the accuracy of detector data within the tower.

[0004] Embodiments of the present invention also propose a carbon dioxide capture system.

[0005] The regeneration tower of this invention includes a tower body, supporting reinforcement components, and a detector.

[0006] The side wall of the tower body has a detection port, a rich liquid inlet, a lean liquid outlet, and a gas phase outlet. The lean liquid outlet is located at the bottom of the tower body, and the gas phase outlet is located at the top of the tower body. One end of the support reinforcement is disposed on the inner wall of the tower body and extends toward the interior of the tower body. The support reinforcement has a fixing point. The detector is inserted into the tower body through the detection port and is fixed at the fixing point.

[0007] The regeneration tower of this invention reinforces the detector's rod structure by adding a supporting reinforcement member inside the tower body and inserting the detector into the tower body through the detection port. The detector is fixed to the supporting reinforcement member. This strengthens the detector's rod structure and prevents it from swaying under the impact of airflow or solid particles, thus preventing data deviation. Therefore, the regeneration tower of this invention increases the accuracy of the detector data.

[0008] Therefore, the regeneration tower of the present invention has the advantage of improving the accuracy of detector data inside the tower.

[0009] In some embodiments, the support reinforcement includes a reinforcing rib and a sleeve. The reinforcing rib is connected to the tower body, and the sleeve is connected to the lower end face of the reinforcing rib. The inner surface of the sleeve forms the fixing point, and the detector passes through the sleeve.

[0010] In some embodiments, the regeneration tower further includes a reinforcement member disposed below the reinforcing rib plate to support and position the reinforcing rib plate.

[0011] In some embodiments, the sleeve has a predetermined distance from the inner wall of the tower body, the sleeve is a conical plate, and the cross-section of the sleeve increases from bottom to top.

[0012] In some embodiments, one end of the reinforcing rib is connected to the tower body, the other end of the reinforcing rib is cantilevered, and the detection point of the detector is offset from the reinforcing rib in the vertical direction of the tower body.

[0013] In some embodiments, the detector has an end check point, the distance between the check point and the inner wall of the tower body is L1, the distance between the sleeve and the inner wall of the tower body is L2, and the difference between L1 and L2 is not greater than 800mm.

[0014] In some embodiments, the regeneration tower further includes a shock absorber disposed within the sleeve and along the inner circumferential surface of the sleeve, wherein the rod of the detector passes through the sleeve and abuts against the shock absorber.

[0015] In some embodiments, the regeneration tower has a desorption chamber and a plurality of packing supports spaced apart along its height to form a plurality of packing chambers. The desorption chamber is located below the most downstream packing chamber. The lean liquid outlet is located below the packing chamber. Each packing chamber has a packing layer. A distributor is located above each packing chamber. The gas phase outlet is located above the most upstream packing chamber.

[0016] In some embodiments, the regeneration tower further includes a plurality of heat transfer tubes and a reboiler. Each of the packing chambers is provided with a heat transfer tube, and each heat transfer tube is provided in a one-to-one correspondence in each of the packing chambers. The heat transfer tubes in each of the packing chambers are arranged in series in the counter-current direction along the flow direction of the absorbent liquid in the tower body. The reboiler is capable of exchanging heat with the heat transfer tubes.

[0017] In some embodiments, the heat transfer pipes in the downstream packing chamber are connected to the lean liquid outlet, while the heat transfer pipes in the upstream packing chamber are connected to the outside.

[0018] In some embodiments, the heat transfer pipe fitting includes a manifold, a plurality of main pipes and a plurality of branch pipes. The lean liquid outlet is connected to the plurality of main pipes through the manifold. Each branch pipe is connected to the main pipe. Each main pipe extends along the extension direction of the packing support. Each branch pipe extends into the packing chamber along the height direction of the tower body. The plurality of branch pipes, the packing support and / or the tower body define the packing chamber.

[0019] In some embodiments, the detector includes a plurality of pressure detectors and a plurality of level gauges. The plurality of pressure detectors are correspondingly disposed in the portion of the tower body between the analysis chamber and the downstream packing chamber along the circumference of the tower body, and the plurality of level gauges are spaced apart in the analysis chamber along the height direction of the tower body.

[0020] The carbon dioxide capture system of this invention includes an absorption tower and a regeneration tower according to any one of the above-mentioned methods, wherein the absorption tower and the regeneration tower are in cyclic communication. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the regeneration tower according to an embodiment of the present invention.

[0022] Figure 2 This is a partial structural schematic diagram of the regeneration tower according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the cooperation between the support reinforcement and the detector in the regeneration tower according to an embodiment of the present invention.

[0024] Figure label:

[0025] Regeneration tower 100;

[0026] Tower body 1; Detection port 11; Rich liquor inlet 12; Lean liquor outlet 13; Gas phase outlet 14; Packing chamber 15; Desorption chamber 16;

[0027] Support reinforcement 2; Reinforcing rib 21; Sleeve 22;

[0028] Detector 3;

[0029] Reinforcement 4;

[0030] Distributor 5; Packing layer 6;

[0031] Heat transfer fittings 7; manifolds 71; main pipes 72; branch pipes 73;

[0032] Reboiler 8. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] The following is for reference. Figures 1-3 The present invention describes a regeneration tower 100 and a carbon dioxide capture system having the regeneration tower 100.

[0035] The regeneration tower 100 of this invention includes a tower body 1, a support reinforcement 42, and a detector 3.

[0036] The side wall of the tower body 1 has a detection port 11, a rich liquid inlet 12, a lean liquid outlet 13 and a gas phase outlet 14. The lean liquid outlet 13 is located at the bottom of the tower body 1 and the gas phase outlet 14 is located at the top of the tower body 1. One end of the support reinforcement 42 is set on the inner wall of the tower body 1 and extends towards the interior of the tower body 1. The support reinforcement 42 has a fixing point. The detector 3 is inserted into the tower body 1 through the detection port 11 and is fixed at the fixing point.

[0037] The regeneration tower 100 of this embodiment strengthens the rod structure of the detector 3 by adding a supporting reinforcement 42 inside the tower body 1 and inserting the detector 3 into the tower body 1 through the detection port 11 and fixing the detector 3 to the supporting reinforcement 42. This prevents the rod of the detector 3 from swaying under the impact of airflow or solid particles, thus preventing deviations in the detection data. Therefore, the regeneration tower 100 of this embodiment increases the accuracy of the detector 3 data.

[0038] Therefore, the regeneration tower 100 of the present invention has the advantage of improving the accuracy of the data from the detector 3 inside the tower body 1.

[0039] like Figure 2 and Figure 3 As shown, the support reinforcement 42 includes a reinforcing rib plate 21 and a sleeve 22. The reinforcing rib plate 21 is connected to the tower body 1, and the sleeve 22 is connected to the lower end face of the reinforcing rib plate 21. A fixed position is formed on the sleeve 22, and the detector 3 is inserted through the sleeve 22.

[0040] The regeneration tower 100 of this invention divides the support reinforcement 42 into a reinforcing rib plate 21 and a sleeve 22. The sleeve 22 is connected to the lower end face of the reinforcing rib plate 21 and a fixed position is formed on the sleeve 22. The detector 3 is installed on the sleeve 22. The positioning of the detector 3 rod is achieved through the cylindrical structure of the sleeve 22. Compared with other connection and installation methods, it has the advantages of simple structure and high convenience of installation and disassembly.

[0041] like Figure 2 and Figure 3As shown, the regeneration tower 100 of this embodiment of the invention also includes a reinforcement member 4, which is disposed below the reinforcing rib plate 21 to support and position the reinforcing rib plate 21.

[0042] The regeneration tower 100 of this embodiment of the invention, through the reinforcement member 4 disposed below the reinforcement rib 21 to support and position the reinforcement rib 21, can reinforce the reinforcement rib 21, preventing problems such as poor positioning stability, easy displacement, and loosening of the reinforcement rib 21 itself. Furthermore, it further avoids the problem of the detector 3 connected to the support reinforcement member 42 shaking. Therefore, the regeneration tower 100 of this embodiment of the invention helps to further improve the data accuracy of the detector 3.

[0043] Optionally, the reinforcement 4 can be in the form of an approximately L-shaped stiffener, with one side of the L-shaped stiffener connected to the tower body 1 and the other side of the L-shaped stiffener supported below the reinforcing stiffener 21.

[0044] like Figure 2 and Figure 3 As shown, the sleeve 22 has a predetermined distance from the inner wall of the tower body 1. The sleeve 22 is a conical plate, and the cross-section of the conical plate increases from bottom to top. Furthermore, while reinforcing the detector 3, it helps to reduce the distance between the center of gravity of the support reinforcement 42 and the support point of the tower body 1, avoiding excessive cantilever size of the support reinforcement 42. This further helps to reduce the possibility of swaying of the support reinforcement 42. Therefore, the regeneration tower 100 of this embodiment of the invention helps to further improve the data accuracy of the detector 3.

[0045] like Figure 2 and Figure 3 As shown, one end of the reinforcing rib plate 21 is connected to the tower body 1, and the other end of the reinforcing rib plate 21 is cantilevered. The detection point of the detector 3 is offset from the reinforcing rib plate 21 in the vertical direction of the tower body 1.

[0046] In this embodiment of the regeneration tower 100, the detection point of the detector 3 and the reinforcing rib 21 are staggered in the vertical direction of the tower body 1. This prevents the added supporting reinforcement 42 from obstructing the upward flow of air and affecting the local airflow or temperature, thus avoiding measurement deviations. Therefore, the regeneration tower 100 of this embodiment helps to further improve the accuracy of the detector 3 data.

[0047] The detector 3 has an end inspection point, the distance between the inspection point and the inner wall of the tower body 1 is L1, the distance between the sleeve 22 and the inner wall of the tower body 1 is L2, and the difference between L1 and L2 is no more than 800mm.

[0048] The regeneration tower 100 of this embodiment of the invention, by limiting the difference between L1 and L2 to no more than 800 mm, can avoid the problem of the detector 3's rod swaying due to airflow turbulence caused by excessive data difference, and avoid the problem of swaying easily caused by excessive rod overhang. Therefore, the regeneration tower 100 of this embodiment of the invention helps to further improve the data accuracy of the detector 3.

[0049] Optionally, if the distance between the detection point and the inner wall of the tower body 1 is 1000mm, then the distance between the sleeve 22 and the inner wall of the tower body 1 is 600mm.

[0050] The regeneration tower 100 of this embodiment of the invention also includes a shock absorber (not shown), which is disposed inside the sleeve 22 and is disposed along the inner circumferential surface of the sleeve 22. The rod of the detector 3 passes through the sleeve 22 and abuts against the shock absorber.

[0051] The regeneration tower 100 of this embodiment of the invention, by adding a shock-absorbing component to the inner circumferential surface of the sleeve 22, allows the shock-absorbing component to fill the space between the rod and the sleeve 22. While the shock-absorbing component is installed in conjunction with the rod and the sleeve 22, it also provides a limiting effect on the rod, helping to suppress the swaying of the rod. Therefore, the regeneration tower 100 of this embodiment of the invention helps to further improve the data accuracy of the detector 3.

[0052] like Figure 1 and Figure 2 As shown, the tower body 1 has a desorption chamber 16 and multiple packing supports spaced apart along its height to form multiple packing chambers 15. The desorption chamber 16 is located below the downstream packing chamber 15. Below the packing chamber 15 is a lean liquid outlet 13. Each packing chamber 15 is provided with a packing layer 6. A distributor 5 is provided above each packing chamber 15. The gas phase outlet 14 is located above the upstream packing chamber 15.

[0053] The regeneration tower 100 of this invention forms multiple packing chambers 15 by setting an analysis chamber 16 inside the tower body 1 and setting multiple packing supports at intervals along its height direction. Each packing chamber 15 is provided with a packing layer 6. The packing layer 6 provides a huge specific surface area, which helps the gas and liquid phases to contact more fully. By stacking the packing layers 6 through multiple packing chambers 15, the gas and liquid can have multi-stage contact in the tower body 1, which can enhance the mass and heat transfer process between the gas and liquid phases.

[0054] Optionally, there can be multiple rich liquid inlets 12, with each packing chamber 15 corresponding to a rich liquid inlet 12.

[0055] Alternatively, the packing layer 6 may be composed of perforated metal corrugated packing. The packing layer 6 may also be composed of stainless steel wire mesh or rings.

[0056] like Figure 1 and Figure 2As shown, the regeneration tower 100 of this embodiment of the invention also includes a plurality of heat transfer tubes 7 and a reboiler 8. Each packing chamber 15 is provided with a heat transfer tube 7. Each heat transfer tube 7 is arranged in a one-to-one correspondence and in a crisscross pattern in each packing chamber 15. The heat transfer tubes 7 in each packing chamber 15 are arranged in series in the opposite direction to the flow direction of the absorbent liquid in the tower body 1. The reboiler 8 can exchange heat with the heat transfer tubes 7.

[0057] The regeneration tower 100 of this embodiment of the invention, through the addition of heat transfer tubes 7 and reboilers 8, with each heat transfer tube 7 correspondingly arranged in each packing chamber 15, achieves direct heat exchange between the rich liquid and the heat transfer tubes 7 (i.e., changing from indirect heat exchange to direct contact heat exchange), thereby maintaining the absorbent liquid at a relatively high temperature. Therefore, the regeneration tower 100 of this embodiment of the invention helps to improve the gas-liquid mass transfer effect and desorption efficiency.

[0058] In addition, the heat transfer tubes 7 in each packing chamber 15 are connected in series in the opposite direction to the flow of the absorbent liquid in the tower body 1, which can reduce heat loss with a small temperature difference and help reduce energy consumption.

[0059] like Figure 1 and Figure 2 As shown, the heat transfer tube 7 in the downstream packing chamber 15 is connected to the lean liquid outlet 13, and the heat transfer tube 7 in the upstream packing chamber 15 is connected to the outside.

[0060] The regeneration tower 100 of this invention connects the heat transfer pipes 7 in the downstream packing chamber 15 to the lean liquor outlet 13. This allows the heat stored in the lean liquor outlet 13 to be utilized by the packing layer 6 in the upper packing chamber 15, promoting heat exchange in the rich liquor. This can partially or even completely replace traditional steam heating, thus avoiding the consumption of high-value superheated steam and significantly reducing the CO2 desorption cost of coal-fired power plants. In other words, the heat contained in the regeneration gas can be fully utilized to preheat the rich liquor, thereby reducing energy consumption during the rich liquor desorption process. This reduces capture costs and steam consumption.

[0061] like Figure 2 As shown, the heat transfer fitting 7 includes a manifold 71, multiple main pipes 72 and multiple branch pipes 73. The main pipes 72 and multiple branch pipes 73 are crisscrossed in the packing chamber 15. The lean liquid outlet 13 is connected to multiple main pipes 72 through the manifold 71. Each branch pipe 73 is connected to a main pipe 72. Each main pipe 72 extends along the extension direction of the packing support. Each branch pipe 73 extends into the packing chamber along the height direction of the tower body 1. The multiple branch pipes 73 and the packing support and / or the tower body 1 define the packing compartments.

[0062] Understandably, multiple main pipes 72 extend into the packing compartment along the extension direction of the packing support, which can heat the bottom of the packing layer 6 in the corresponding reaction chamber, and multiple branch pipes 73 extend along the height direction of the tower body 1, which can heat the side of the packing layer 6 in the corresponding reaction chamber.

[0063] The regeneration tower 100 of this embodiment of the invention divides the heating assembly into a manifold 71, multiple main pipes 72, and multiple branch pipes 73. The multiple main pipes 72 extend along the extension direction of the packing support, and the multiple branch pipes 73 extend along the height direction of the tower body 1. This achieves heat exchange at the bottom edge and multiple sides of the packing layer 6, not only improving heat exchange efficiency but also contributing to improved uniformity of the absorbent temperature. Therefore, the regeneration tower 100 of this embodiment of the invention helps to further improve CO2 desorption efficiency.

[0064] Furthermore, multiple main pipes 72 extend along a direction perpendicular to the height of the tower body 1, and multiple branch pipes 73 can be regularly arranged to form multiple packing compartments with triangular, square, or rectangular structures. That is, multiple branch pipes 73 can be arranged inside the reaction chamber and sandwiched between adjacent packing layers 6, allowing for timely heating of the packing layers 6. Therefore, the regeneration tower 100 of this embodiment of the invention significantly improves heat exchange efficiency.

[0065] The detector 3 includes multiple pressure detectors 3 and multiple level gauges. The pressure detectors 3 are arranged circumferentially within the tower body 1, between the desorption chamber 16 and the downstream packing chamber 15. The level gauges are spaced apart along the height of the tower body 1 within the desorption chamber 16. This allows for comprehensive detection of multiple points within the tower body 1, which helps to further improve detection accuracy.

[0066] The carbon dioxide capture system of this invention includes an absorption tower and a regeneration tower 100 according to any one of the above, wherein the absorption tower and the regeneration tower 100 are in cyclic communication.

[0067] Therefore, the carbon dioxide capture system of this embodiment of the invention has the advantage of improving the accuracy of the detector 3 data.

[0068] In the description of this invention, 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 invention 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 invention.

[0069] 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 invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "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 them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of 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.

[0072] In this invention, 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 the invention. 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.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A regenerator tower characterized by, The application relates to a regeneration tower, which comprises the following parts: a tower body, the side wall of the tower body is provided with a detection port, a rich liquid inlet, a lean liquid outlet and a gas phase outlet, the lean liquid outlet is located at the bottom of the tower body, and the gas phase outlet is located at the top of the tower body; a support reinforcing part, one end of the support reinforcing part is arranged on the inner wall of the tower body and extends towards the inside of the tower body, and the support reinforcing part is provided with a fixing point; a detector, the detector is arranged in the tower body through the detection port, and the detector is fixed on the fixing point; the support reinforcing part comprises a reinforcing rib plate and a sleeve, the reinforcing rib plate is connected with the tower body, the sleeve is connected on the lower end surface of the reinforcing rib plate, the inner surface of the sleeve forms the fixing point, and the detector is arranged on the sleeve; the regeneration tower further comprises a reinforcing part arranged below the reinforcing rib plate to support and position the reinforcing rib plate; the sleeve has a predetermined distance from the inner wall of the tower body, the sleeve is a conical plate, the cross section of the sleeve increases from bottom to top, one end of the reinforcing rib plate is connected with the tower body, the other end of the reinforcing rib plate is arranged in a cantilever mode, and the detection point of the detector is arranged in a staggered mode with the reinforcing rib plate in the up-down direction of the tower body.

2. The regenerative tower according to claim 1, characterized in that the detector has a detection point at the end, the distance between the detection point and the inner wall of the tower body is L1, the distance between the sleeve and the inner wall of the tower body is L2, and the difference between L1 and L2 is not greater than 800 mm; and / or, further comprising a damping part arranged in the sleeve, the damping part is arranged along the inner circumferential surface of the sleeve, the rod body of the detector is arranged in the sleeve and abuts against the damping part.

3. The regenerative tower according to claim 1, characterized in that the tower body is provided with an analysis chamber and a plurality of packing supports arranged in the height direction of the tower body to form a plurality of packing chambers, the analysis chamber is located below the most downstream packing chamber, the lower part of the packing chamber is provided with the lean liquid outlet, a packing layer is arranged in each packing chamber, a distributor is arranged above each packing chamber, and the gas phase outlet is arranged above the most upstream packing chamber.

4. The regenerative tower according to claim 3, characterized in that further comprising a plurality of heat transfer pipe parts and a reboiler, each packing chamber is provided with a heat transfer pipe part, each heat transfer pipe part is arranged in each packing chamber in a one-to-one mode, the heat transfer pipe parts in each packing chamber are arranged in a reverse series along the flow direction of the absorption liquid in the tower body, and the reboiler can exchange heat with the heat transfer pipe parts.

5. The regenerative tower according to claim 4, characterized in that the heat transfer pipe part in the most downstream packing chamber is communicated with the lean liquid outlet, and the heat transfer pipe part in the most upstream packing chamber can be communicated with the outside.

6. The regenerative tower according to claim 5, characterized in that the heat transfer pipe part comprises a busbar, a plurality of main pipes and a plurality of branch pipes, the main pipes and the branch pipes are arranged in the packing chamber in a longitudinal and transverse mode, the lean liquid outlet is communicated with the main pipes through the busbar, each branch pipe is communicated with the main pipe, each main pipe extends along the extension direction of the packing support, each branch pipe extends in the packing chamber along the height direction of the tower body, and the branch pipes, the packing supports and / or the tower body define the packing sub-chambers.

7. The regenerative tower according to claim 3, characterized in that The detector includes a plurality of air pressure detectors and a plurality of liquid level detectors, the plurality of air pressure detectors are correspondingly arranged in the tower body along the circumferential direction of the tower body between the resolution chamber and the most downstream packing chamber in the tower body, and the plurality of liquid level detectors are arranged in the resolution chamber at intervals along the height direction of the tower body.

8. A carbon dioxide capture system characterized by, An absorption tower and a regeneration tower according to any one of claims 1-7 are included, and the absorption tower is in circulation communication with the regeneration tower.

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