Carbon capture absorption column and carbon capture system

Abstract

The application discloses a carbon capture absorption tower and a carbon capture system, and relates to the field of carbon capture technology.The carbon capture absorption tower comprises a tower body and a supporting device, the tower body has a plurality of tower body sections connected in sequence along the axial direction thereof, the supporting device comprises a plurality of supporting frames, the plurality of supporting frames are connected in sequence along the axial direction of the tower body, the supporting frame located at the lowermost side of the supporting device is supported on the ground, and the supporting device is arranged on the outer side of the tower body; the first connecting part between the two adjacent tower body sections and the second connecting part between the two adjacent supporting frames are arranged in a staggered manner in the axial direction of the tower body; at least part of the supporting frames has a first section and a second section arranged along the axial direction of the tower body, the first section is fixedly connected with one of the two adjacent tower body sections, and the second section abuts against the other tower body section. The application can improve the stability and installation efficiency of the overall structure, facilitate the alignment between large components, reduce the construction difficulty, and optimize the load transmission between the adjacent tower body sections.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon capture, and in particular relates to a carbon capture absorption tower and a carbon capture system. Background Art

[0002] The carbon capture absorption tower is a key component of carbon capture technology. After flue gas enters the tower and comes into contact with the absorbent, the carbon dioxide in the flue gas reacts with the absorbent, absorbing the carbon dioxide. In million-ton-scale carbon dioxide capture facilities, the absorption tower can reach nearly 80 meters or even higher, placing even higher demands on the tower's structural stability.

[0003] In related technologies, the tower body is installed in sections. Different sections of the tower body bear different loads after installation. Different tower sections undergo different deformations when affected by different temperatures and loads. Therefore, the structure of the tower body and its supporting device needs to be optimized to ensure the structural stability of the absorption tower during application. 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 absorption tower that can achieve segmented support and improve structural stability.

[0006] An embodiment of the present invention provides a carbon capture system.

[0007] A carbon capture absorption tower according to an embodiment of the present invention includes:

[0008] A tower body, wherein the tower body comprises a plurality of tower body segments connected in sequence along its axial direction;

[0009] A supporting device, comprising a plurality of supporting frames, the plurality of supporting frames being sequentially connected along the axial direction of the tower body, the supporting frame located at the lowest side of the supporting device being supported on the ground, and the supporting device being arranged on the outside of the tower body;

[0010] The first connecting portion between two adjacent tower body segments and the second connecting portion between two adjacent support frames are staggered in the axial direction of the tower body;

[0011] At least part of the support frame has a first section and a second section arranged along the axial direction of the tower body, the first section is fixedly connected to one of the two adjacent tower sections, and the second section abuts against the other of the two adjacent tower sections.

[0012] The tower body and the supporting device in the embodiment of the present invention are divided into multiple sections, and segmented installation can be achieved during the installation process. By staggering the connection parts between adjacent support frames and the connection parts between adjacent tower body segments, the stability of the overall structure can be improved after the connection parts are staggered. During installation, the support frame also has a guiding function, which can improve the installation efficiency when large components are hoisted and installed, facilitate the alignment between large components, and reduce the difficulty of construction. In addition, after the tower body segment is affected by temperature and load, it can avoid that two adjacent tower body segments are fixedly connected to the same support frame, so that it is convenient to optimize the load transfer between two adjacent tower body segments through adjustment between adjacent support frames after installation.

[0013] In some embodiments, the support frame comprises:

[0014] a column extending along the axial direction of the tower body, the column being in plurality, the column abutting against the outer wall of the tower body, and the plurality of columns being arranged parallel and spaced apart along the circumference of the tower body;

[0015] a first beam body, the first beam body being provided at the end of the column body, the first beam body being used to connect adjacent columns to form a ring beam in a closed ring shape;

[0016] The ring beams on two adjacent support frames are abutted against each other and fixedly connected.

[0017] The embodiment of the present invention transmits axial force between adjacent support frames through the arrangement of columns. At the same time, multiple columns can be connected into one through the arrangement of the first beam, thereby reducing their lateral force, improving the stability of the structure, increasing the installation speed during the installation process, and facilitating overall lifting.

[0018] In some embodiments, the cross-sections of the tower body segment and the support frame are both rectangular, and the column includes a first column and a second column, wherein the first column is arranged corresponding to the side ridges of the tower body segment, and a plurality of second columns are provided between two adjacent first columns, and the second columns are arranged corresponding to each side wall of the tower body segment;

[0019] On the same side wall of the tower body section, a diagonal tie rod is provided between two adjacent second columns.

[0020] The first column of the embodiment of the present invention is arranged corresponding to the side ridges of the tower body section, and structurally reinforces the side ridges of the tower body section. The second column can structurally reinforce the middle part of the side wall of the tower body section. By setting the diagonal rod, the structural stability between the columns can be improved. The tower body section with a rectangular cross-section can strengthen the structure of each side wall while being supported on the support frame.

[0021] In some embodiments, the carbon capture absorption tower further comprises a guide assembly, the guide assembly being disposed between two adjacent support frames, the guide assembly comprising a guide sleeve and a guide post, the guide sleeve being disposed on the ring beam of one of the two adjacent support frames, the guide post being disposed on the ring beam of the other of the two adjacent support frames, the guide sleeve being movable relative to the guide post along the axial direction of the tower body;

[0022] And / or, the height of the tower body in the axial direction is 50 meters to 100 meters, and the length and width of the tower body in the horizontal direction are 10 meters to 20 meters.

[0023] In some embodiments, a first compensator is provided between two adjacent support frames;

[0024] and / or, a second compensator is provided between two adjacent tower sections;

[0025] and / or, a ratio of the dimensions of the first section to the second section in the axial direction of the tower body is 3 to 18;

[0026] And / or, the first section is fixed to the corresponding tower body section by welding.

[0027] The embodiment of the present invention can improve the structural stability between adjacent support frames and reduce the shear force on the connection structure between adjacent support frames through the provision of the guide assembly, and can use the guide column and guide sleeve for positioning during installation to improve the efficiency of installation. The tower body of the embodiment of the present invention has a larger height dimension and cross-sectional dimension, providing a larger-scale carbon capture composite absorption tower. The provision of the first compensator and the second compensator of the embodiment of the present invention can solve the deformation of the tower body segment after being affected by temperature and load, compensate for the deformation of the tower body segment, and ensure the stability of the overall structure of the tower body. The embodiment of the present invention can improve the stability of the connection structure between the support frame and the tower body segment by reasonably designing the size ratio of the first section and the second section, and can use the support frame to guide the tower body segment to improve the installation efficiency.

[0028] In some embodiments, the tower section located at the lowest side of the tower body is spaced apart from the ground.

[0029] The tower sections of the embodiment of the present invention are spaced apart from the ground, which can prevent the heat on the tower sections from being transferred to the ground after direct contact between the tower sections and the ground, causing the ground to be damaged by heat, and also prevent the tower sections from being damaged due to deformation of the tower sections after direct contact with the ground.

[0030] In some embodiments, the distance between the tower body section located at the lowest side of the tower body and the ground is 500 mm to 1500 mm;

[0031] and / or, a heat insulation layer is provided between the bottom of the tower section located at the lowest side of the tower body and the ground;

[0032] And / or, a shock-absorbing rubber bearing is provided between the bottom of the tower body section located at the lowest side of the tower body and the ground, and the number of the shock-absorbing rubber bearings is multiple, and the multiple shock-absorbing rubber bearings are arranged in an array.

[0033] By providing an insulation layer between the tower segments and the ground, the embodiments of the present invention prevent heat transfer from the tower segments to the ground. The insulation layer also acts as a buffer to compensate for deformation of the tower segments. The provision of shock-absorbing rubber bearings in the embodiments of the present invention enhances support for the tower segments and improves the structural stability of the tower body. They also provide deformation compensation, cushioning, and thermal insulation, resulting in greater stability in the tower body under load.

[0034] In some embodiments, the carbon capture absorption tower further includes a top cover, which is disposed on the top of the tower body. The cross-sectional area of ​​the top cover gradually decreases from an end close to the tower body to an end away from the tower body.

[0035] The top cover of the embodiment of the present invention can guide the smoke to converge and be discharged from the top of the top cover, thereby reducing the resistance encountered by the smoke during the discharge process.

[0036] In some embodiments, the top cover has a plurality of side panels, each of which has a first preset angle with the horizontal plane, and the plurality of side panels are sequentially arranged along the circumference of the tower body and are in the shape of a pyramid truncated cone, and the first preset angle is 55° to 65°;

[0037] And / or, the top cover has a first port and a second port, the first port is correspondingly connected to the tower body, the second port is used to connect to the smoke exhaust pipe, and the ratio of the flow area of ​​the first port to the flow area of ​​the second port is 4 to 10;

[0038] And / or, the carbon capture absorption tower further comprises a plurality of third beams, which are arranged in a grid and fixed together, and the third beams are in contact with and fixedly connected to the outer wall surface of the top cover.

[0039] By adjusting the inclination angles of the top cover's side panels and constraining the ratio of the flow area between the first and second ports, the present invention reduces the overall height of the top cover, optimizes the flue gas discharge rate, and avoids excessive pressure drop at the top of the tower body. The provision of a third beam also enhances the structural stability of the top cover and prevents deformation.

[0040] The carbon capture system of an embodiment of the present invention comprises an absorption tower and a regeneration tower, wherein the absorption tower is the carbon capture absorption tower described in any one of the above embodiments, and the absorption tower is connected to the regeneration tower;

[0041] The flue gas passes into the inner cavity of the absorption tower through the bottom of the absorption tower, and contacts and reacts with the absorbent falling from the top of the absorption tower to capture carbon dioxide in the flue gas. The flue gas after removing carbon dioxide is discharged through the top of the absorption tower. The absorbent after absorbing carbon dioxide is regenerated in the regeneration tower and refluxes to the top of the absorption tower.

[0042] At least some of the beneficial effects achieved by the carbon capture system in the embodiment of the present invention are the same as the beneficial effects achieved by the carbon capture absorption tower in the above embodiment, so they are not described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 Schematic diagram of the structure of a carbon capture absorption tower according to an embodiment of the present invention.

[0044] Figure 2 It is a schematic cross-sectional structural diagram of a carbon capture absorption tower according to an embodiment of the present invention.

[0045] Figure 3 It is a schematic diagram of the structure between the tower body and the ground in an embodiment of the present invention.

[0046] Figure 4 Schematic diagram of the structure between two adjacent support frames in an embodiment of the present invention.

[0047] Figure 5 2 is a schematic diagram of the three-dimensional structure of the top cover in an embodiment of the present invention.

[0048] Figure 6 2 is a schematic front view of the top cover in an embodiment of the present invention.

[0049] Reference numerals:

[0050] 1. Tower body; 11. Tower body section; 12. Top cover; 121. Side plate; 122. First port; 123. Second port; 13. First connecting portion;

[0051] 2. Support device; 21. Support frame; 211. Column; 2111. First column; 2112. Second column; 212. First beam; 213. Diagonal brace; 214. First section; 215. Second section; 22. Second connecting portion;

[0052] 3. Guide assembly; 31. Guide sleeve; 32. Guide column;

[0053] 41. Thermal insulation layer; 42. Shock-absorbing rubber bearing;

[0054] 51. The third beam. DETAILED DESCRIPTION

[0055] 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.

[0056] The following references Figures 1-6 The carbon capture absorption tower and the carbon capture system in the embodiments of the present invention are described in detail.

[0057] According to an embodiment of the present invention, a carbon capture absorption tower includes a tower body 1 and a support device 2. The tower body 1 has a plurality of tower body segments 11 connected in sequence along its axial direction; the support device 2 includes a plurality of support frames 21, and the plurality of support frames 21 are connected in sequence along the axial direction of the tower body 1. The support frame 21 located at the lowermost side of the support device 2 is supported on the ground, and the support device 2 is arranged on the outside of the tower body 1; the first connection portion 13 between two adjacent tower body segments 11 and the second connection portion 22 between two adjacent support frames 21 are staggered in the axial direction of the tower body 1; at least part of the support frames 21 have a first section 214 and a second section 215 arranged along the axial direction of the tower body 1, the first section 214 is fixedly connected to one of the two adjacent tower body segments 11, and the second section 215 is abutted against the other of the two adjacent tower body segments 11.

[0058] The tower body 1 and the supporting device 2 in the embodiment of the present invention are divided into multiple sections, and segmented installation can be achieved during the installation process. By staggering the connection parts between adjacent support frames 21 and the connection parts between adjacent tower body segments 11, the stability of the overall structure can be improved after the connection parts are staggered. During installation, the support frame 21 also has a guiding function, which can improve the installation efficiency when large components are hoisted and installed, facilitate the alignment between large components, and reduce the difficulty of construction. In addition, after being affected by temperature and load, the tower body segment 11 can avoid the two adjacent tower body segments 11 being fixedly connected to the same support frame 21, so that the load transfer between the two adjacent tower body segments 11 can be optimized through adjustment between adjacent support frames 21 after installation.

[0059] The first connection portion 13 is the position where two adjacent tower sections 11 are connected, and the second connection portion 22 is the position where two adjacent support frames 21 are connected.

[0060] It should be understood that at least part of the support frame 21 corresponds to two adjacent tower body sections 11 (for example, the two adjacent tower body sections 11 are the first tower body section and the second tower body section respectively), one of the tower body sections 11 (the first tower body section) is fixedly connected to the first section 214 of the support frame 21, and the other tower body section 11 (the second tower body section) is abutted against the second section 215 of the support frame 21. At this time, the tower body section 11 (the first tower body section) fixedly connected to the first section 214 can be supported on the support frame 21 and the tower body section 11 located below it, reducing the load acting on the tower body section 11 below it, and avoiding the tower body section 11 located below it (the tower body section 11 located below the first tower body section) from being subjected to excessive load and deforming.

[0061] The tower body section 11 (second tower body section) abutting against the second section 215 of the support frame 21 is fixedly connected to the first section 214 of another support frame 21, so that the two adjacent tower body sections 11 (first tower body section and second tower body section) can be fixedly connected to the two adjacent support frames 21 respectively, while ensuring that the first connection part 13 between the two adjacent tower body sections 11 and the second connection part 22 between the two adjacent support frames 21 are staggered in the axial direction of the tower body 1, avoiding poor structural stability due to the first connection part 13 and the second connection part 22 being at the same height.

[0062] During installation, the tower body section 11 can use the second section 215 of the supporting frame 21 below as a guide to improve installation efficiency.

[0063] In some embodiments, the support frame 21 includes a column 211 and a first beam 212. The column 211 extends axially along the tower body 1. There are multiple columns 211. The column 211 abuts against the outer wall of the tower body 1. Multiple columns 211 are arranged in parallel and at intervals along the circumference of the tower body 1; the first beam 212 is provided at the end of the column 211, and the first beam 212 is used to connect adjacent columns 211 to form a closed ring beam; the ring beams on two adjacent support frames 21 abut against each other and are fixedly connected.

[0064] Specifically, the column 211 and the first beam 212 can be made of H-shaped steel and are welded to the column 211 and the first beam 212. After the column 211 abuts against the outer wall of the tower body 1, the portion of the column 211 corresponding to the first section 214 of the support frame 21 is welded to the outer wall of the tower body 1.

[0065] In the embodiment of the present invention, the axial force of adjacent support frames 21 is transmitted through the arrangement of the columns 211. At the same time, the arrangement of the first beam 212 can connect multiple columns 211 into one, thereby reducing the lateral force, improving the stability of the structure, increasing the installation speed during the installation process, and facilitating the overall lifting.

[0066] In some embodiments, the cross-sections of the tower section 11 and the support frame 21 are both rectangular, and the column 211 includes a first column 2111 and a second column 2112. The first column 2111 is arranged corresponding to the side ridges of the tower section 11, and multiple second columns 2112 are provided between two adjacent first columns 2111. The second columns 2112 are arranged corresponding to each side wall of the tower section 11; on the same side wall of the tower section 11, a diagonal rod 213 is provided between two adjacent second columns 2112.

[0067] The first column 2111 of the embodiment of the present invention is arranged corresponding to the side ridges of the tower body section 11, and structurally reinforces the side ridges of the tower body section 11. The second column 2112 can structurally reinforce the middle part of the side wall of the tower body section 11. Through the arrangement of the diagonal rod 213, the structural stability between the columns 211 can be improved. The tower body section 11 with a rectangular cross-section can be supported on the support frame 21 while strengthening the structure of each side wall.

[0068] Optionally, there are four first columns 2111, and the four first columns 2111 are respectively arranged corresponding to the four side ribs of the tower body section 11. There are eight second columns 2112, and two second columns 2112 are arranged in the middle of each side wall of the tower body section 11. A diagonal rod 213 is arranged between the two second columns 2112. The multiple diagonal rods 213 are X-shaped, and the diagonal rods 213 are welded and fixed to the second columns 2112 or fixed by bolts.

[0069] In some embodiments, the carbon capture absorption tower also includes a guide assembly 3, which is arranged between two adjacent support frames 21. The guide assembly 3 includes a guide sleeve 31 and a guide column 32. The guide sleeve 31 is arranged on the ring beam of one of the two adjacent support frames 21, and the guide column 32 is arranged on the ring beam of the other of the two adjacent support frames 21. The guide sleeve 31 is movable relative to the guide column 32 along the axial direction of the tower body 1.

[0070] The guide sleeve 31 is a cylindrical hollow sleeve, the guide column 32 is cylindrical, and the end of the guide column 32 has a conical guide section. The Fang Bo Ni guide column 32 and the guide sleeve 31 are positioned when docked.

[0071] Multiple groups of guide assemblies 3 are arranged between two adjacent support frames 21. The multiple groups of guide assemblies 3 are arranged at intervals along the circumference of the tower body 1. For example, the number of guide assemblies 3 is 8, the ring beam is rectangular, and two guide assemblies 3 are arranged on each straight segment of the ring beam.

[0072] The embodiment of the present invention can improve the structural stability between adjacent support frames 21 and reduce the shear force on the connection structure between adjacent support frames 21 by setting the guide assembly 3, and can use the guide column 32 and the guide sleeve 31 for positioning during installation to improve the installation efficiency.

[0073] Further, the tower body 1 of the embodiment of the present application has a height dimension of 50-100 meters in the axial direction, and a length dimension and a width dimension of 10-20 meters in the horizontal direction.

[0074] The embodiment of the present application can realize larger-scale carbon capture and ensure the stability of the structure of the super-large carbon capture absorption tower. The height dimension of the tower body 1 in the axial direction can be 50, 55, 60, 67.5, 80, 84.6 or 100 meters. After integrating the flue gas pre-washing device, phase separator and other equipment into the absorption tower, the height of the tower body 1 in the axial direction will be further increased. At the same time, the length dimension and the width dimension of the tower body 1 in the horizontal direction are 10, 12.3, 16, 19.45 or 20 meters. By limiting the height dimension, length dimension and width dimension of the tower body 1, sufficient internal cavity size of the tower body can be provided, which facilitates the design and arrangement of the tower internals, thereby facilitating the arrangement of high-flux, low-pressure-drop tower internals, and improving the processing capacity, gas-liquid mass transfer efficiency and capture efficiency of the absorption tower.

[0075] In order to reduce the floor area of the carbon capture system, the flue gas pre-washing device, phase separator and other equipment are integrated into the absorption tower in the related art, and the total height of the tower body will be further increased due to the integration of other equipment. Due to the arrangement of the pre-washing device and the phase separator, the material, wall thickness and other parameters of the tower body section 11 at different heights of the tower body 1 will be different, and the load, temperature, number and weight of the tower internals (filler, filler support, etc.) located inside the different tower body sections 11 are different, which will cause different deformation amounts of the tower body sections 11.

[0076] In the embodiment of the present application, a first compensator is arranged between the two adjacent support frames 21, and a second compensator is arranged between the two adjacent tower body sections 11.

[0077] In the embodiment of the present application, when the first compensator is arranged, the first compensator can compensate the deformation amount between the two adjacent support frames 21, and when the second compensator is arranged, the second compensator can compensate the deformation amount between the two adjacent tower body sections 11. Since the support frame 21 is arranged outside the tower body section 11, the material of the support frame 21 is relatively uniform, and therefore the deformation amount caused by the influence of the support frame 21 is relatively small compared with the tower body section 11. Therefore, the second compensator can be arranged only between the two adjacent tower body sections 11 to compensate the deformation amount of the tower body section 11 caused by the influence of temperature, load and other factors. Since the first section 214 in the same support frame 21 is fixedly connected to one of the adjacent tower body sections 11 and abuts against the other, the support frame 21 will not be affected, thereby improving the stability of the structure.

[0078] Optionally, the first compensator and the second compensator are expansion joints.

[0079] The tower body 1 of the embodiment of the present invention has larger height and cross-sectional dimensions, providing a larger-scale carbon capture composite absorption tower. The arrangement of the first compensator and the second compensator of the embodiment of the present invention can solve the deformation of the tower body segment 11 caused by the influence of temperature and load, compensate for the deformation of the tower body segment 11, and ensure the stability of the overall structure of the tower body 1.

[0080] Furthermore, a ratio of the dimensions of the first section 214 to the second section 215 in the axial direction of the tower body 1 is 3 to 18.

[0081] It should be understood that when the axial length of the support frame 21 in the tower body 1 is L, the length of the first section 214 is 3 / 4L to 18 / 19L, and the remaining length is the length of the second section 215. For example, when the length of the first section 214 is 3 / 4L, the length of the second section 215 is 1 / 4L. For another example, when the length of the first section 214 is 5 / 6L, the length of the second section 215 is 1 / 6L. For another example, when the length of the first section 214 is 18 / 19L, the length of the second section 215 is 1 / 19L.

[0082] The length of the second section 215 of the support frame 21 is also the minimum offset distance between the second connection portion 22 between two adjacent support frames 21 and the first connection portion 13 between two adjacent tower body segments 11 in the axial direction of the tower body 1 .

[0083] When the ratio of the dimensions of the first section 214 and the second section 215 in the axial direction of the tower body 1 is less than 3, the welding fixing length between the tower body section 11 and the support frame 21 will be too short, and the effective connection between the tower body section 11 and the support frame 21 cannot be guaranteed. When the ratio of the dimensions of the first section 214 and the second section 215 in the axial direction of the tower body 1 is greater than 18, the minimum misalignment distance between the second connection part 22 between two adjacent support frames 21 and the first connection part 13 between two adjacent tower body sections 11 in the axial direction of the tower body 1 will be too tight, affecting the stability of the structure and failing to play a good guiding role during assembly.

[0084] Furthermore, the first section 214 of the embodiment of the present invention is welded and fixed to the corresponding tower section 11. The column 211 and the first beam 212 of the support frame 21 located at the first section 214 are fully welded and fixed to the tower section 11.

[0085] In the embodiment of the present invention, the first section 214 is located below the second section 215 .

[0086] The embodiment of the present invention can improve the stability of the connection structure between the support frame 21 and the tower body section 11 by reasonably designing the size ratio of the first section 214 and the second section 215, and can use the support frame 21 to guide the tower body section 11, thereby improving installation efficiency.

[0087] In some embodiments, the tower section 11 located at the lowermost side of the tower body 1 is spaced apart from the ground.

[0088] The tower section 11 of the embodiment of the present invention is spaced apart from the ground, which can prevent the heat on the tower section 11 from being transferred to the ground after direct contact between the tower section 11 and the ground, causing the ground to be damaged by heat, and also prevent the tower section 11 from being damaged due to deformation of the tower section 11 after direct contact with the ground.

[0089] Furthermore, the distance between the lowermost tower section 11 of the tower body 1 and the ground is 500 mm to 1500 mm. For example, the distance between the lowermost tower section 11 of the tower body 1 and the ground is 500 mm, 750 mm, 862 mm, or 1500 mm. If the distance between the lowermost tower section 11 of the tower body 1 and the ground is less than 500 mm, the gap will be too small, which is not conducive to the air flow between the lowermost tower section 11 and the ground, and cannot achieve a good heat dissipation effect. In addition, the small distance makes subsequent maintenance difficult.

[0090] When the distance between the tower body section 11 located at the lowest side of the tower body 1 and the ground is greater than 1500 mm, the overall height of the tower body 1 is likely to be too high.

[0091] Furthermore, an insulation layer 41 is provided between the bottom of the tower body section 11 located at the lowest side of the tower body 1 and the ground; by providing the insulation layer 41 between the tower body section 11 and the ground, the embodiment of the present invention can prevent the heat in the tower body section 11 from being transferred to the ground, and can also use the insulation layer 41 as a buffer to compensate for the deformation of the tower body section 11.

[0092] Furthermore, a shock-absorbing rubber support 42 is provided between the bottom of the tower body section 11 located at the lowest side of the tower body 1 and the ground. There are multiple shock-absorbing rubber supports 42, and the multiple shock-absorbing rubber supports 42 are arranged in an array.

[0093] The provision of the shock-absorbing rubber bearing 42 in the embodiment of the present invention improves the supporting effect on the tower body section 11 and the structural stability of the tower body 1, while also providing deformation compensation, buffering and heat insulation, making the tower body 1 more stable under stress.

[0094] When the phase separator is integrated into the tower body 1, since there is a large amount of absorbent to be separated in the phase separator, the weight of the corresponding tower body section 11 will increase exponentially, increasing the load of the support frame 21 at the corresponding position. The embodiment of the present invention can reduce the load borne by the support frame 21 to a certain extent and improve the stability of the structure by arranging the shock-absorbing rubber bearing 42.

[0095] In some embodiments, the carbon capture absorption tower further includes a top cover 12 , which is disposed on the top of the tower body 1 , and a cross-sectional area of ​​the top cover 12 gradually decreases from an end close to the tower body 1 to an end away from the tower body 1 .

[0096] The top cover 12 of the embodiment of the present invention can guide the smoke to converge and be discharged from the top of the top cover 12, thereby reducing the resistance encountered by the smoke during the discharge process.

[0097] Furthermore, the top cover 12 has a plurality of side panels 121, each of which has a first preset angle with the horizontal plane. The plurality of side panels 121 are sequentially arranged along the circumference of the tower body 1 and form a pyramidal frustum. The first preset angle is between 55° and 65°. It should be understood that the first preset angle is α shown in the figure. When the first preset angle is too large, the side panels 121 tend to be closer to a vertical position, making it difficult to gather and discharge smoke. When the first preset angle is too small, the side panels 121 tend to be closer to a horizontal position, resulting in an increased reverse force on the smoke from the top cover 12, which is not conducive to smoke discharge and affects the smoke flow within the tower body 1.

[0098] The top cover 12 has a first port 122 and a second port 123. The first port 122 is connected to the tower body 1 and the second port 123 is used to connect to the smoke exhaust pipe. The ratio of the flow area of ​​the first port 122 to the flow area of ​​the second port 123 is 4 to 10.

[0099] It should be understood that when the flow area of ​​the second port 123 is S, the flow area of ​​the first port 122 is 4S to 10S. Since the top cover 12 is in the shape of a prism-shaped cone, the four side panels 121 of the top cover 12 have a top panel on top, and the second port 123 is opened on the top panel. Therefore, the size constraints on the first port 122 and the second port 123 are also indirectly constrained on the height of the top cover 12, so that the flue gas can be discharged from the second port 123 under the guidance of the side panels 121, thereby ensuring the effective flow of the flue gas and avoiding an excessively large pressure drop ratio.

[0100] The embodiment of the present invention can reduce the overall height of the top cover 12 and optimize the flue gas discharge rate by setting the inclination angle of each side plate 121 of the top cover 12 and constraining the ratio of the flow area of ​​the first port 122 and the second port 123, thereby avoiding an excessively large pressure drop ratio at the top of the tower body 1.

[0101] The carbon capture absorption tower also includes a plurality of third beams 51 arranged in a grid pattern and fixed together. The third beams 51 are in contact with and fixedly connected to the outer wall of the top cover 12. The provision of the third beams 51 in this embodiment of the present invention improves the structural stability of the top cover 12 and prevents structural deformation of the top cover 12.

[0102] A plurality of third beams 51 are provided on the outer side of each side panel 121. Among the plurality of third beams 51 located on the outer side of the same side panel 121, some of the third beams 51 are arranged parallel and spaced apart along the first direction, and other third beams 51 are arranged parallel and spaced apart along the second direction. The first direction and the second direction are perpendicular. When the side panel 121 and the third beams 51 are attached and welded to each other, the side panel 121 can be effectively structurally reinforced, thereby improving stability and avoiding structural deformation.

[0103] The third beam 51 may be connected to the ring beam of the uppermost support frame 21 via a suspension rod.

[0104] The carbon capture system of an embodiment of the present invention comprises an absorption tower and a regeneration tower, wherein the absorption tower is the carbon capture absorption tower in any of the above embodiments, and the absorption tower is connected to the regeneration tower;

[0105] The flue gas enters the inner cavity of the absorption tower through the bottom of the absorption tower, and contacts and reacts with the absorbent falling from the top of the absorption tower to capture the carbon dioxide in the flue gas. The flue gas after removing the carbon dioxide is discharged through the top of the absorption tower. The absorbent after absorbing the carbon dioxide is regenerated in the regeneration tower and then flows back to the top of the absorption tower.

[0106] At least some of the beneficial effects achieved by the carbon capture system in the embodiment of the present invention are the same as the beneficial effects achieved by the carbon capture absorption tower in the above embodiment, so they are not described in detail.

[0107] 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.

[0108] In addition, the terms "first", "second", etc. are used only to describe different instances, and are not used to indicate or imply relative importance or a number of indications of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0109] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0110] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0111] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", 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 application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, those skilled in the art can combine and combine different embodiments or examples described in the present specification and the features of different embodiments or examples, without contradiction.

[0112] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A carbon capture absorption tower, characterized in that: include: A tower body, wherein the tower body comprises a plurality of tower body segments connected in sequence along its axial direction; A supporting device, comprising a plurality of supporting frames, the plurality of supporting frames being sequentially connected along the axial direction of the tower body, the supporting frame located at the lowest side of the supporting device being supported on the ground, and the supporting device being arranged on the outside of the tower body; The first connecting portion between two adjacent tower body segments and the second connecting portion between two adjacent support frames are staggered in the axial direction of the tower body; At least part of the support frame has a first section and a second section arranged along the axial direction of the tower body, the first section is fixedly connected to one of the two adjacent tower sections, and the second section abuts against the other of the two adjacent tower sections.

2. The carbon capture absorption tower according to claim 1, characterized in that: The support frame comprises: a column extending along the axial direction of the tower body, the column being in plurality, the column abutting against the outer wall of the tower body, and the plurality of columns being arranged parallel and spaced apart along the circumference of the tower body; a first beam body, the first beam body being provided at the end of the column body, the first beam body being used to connect adjacent columns to form a ring beam in a closed ring shape; The ring beams on two adjacent support frames are abutted against each other and fixedly connected.

3. The carbon capture absorption tower according to claim 2, characterized in that: The cross-sections of the tower body section and the support frame are both rectangular. The column includes a first column and a second column. The first column is arranged corresponding to the side ridges of the tower body section. A plurality of second columns are provided between two adjacent first columns. The second columns are arranged corresponding to the side walls of the tower body section. On the same side wall of the tower body section, a diagonal tie rod is provided between two adjacent second columns.

4. The carbon capture absorption tower according to claim 3, characterized in that: The tower body further comprises a guide assembly, the guide assembly being arranged between two adjacent support frames, the guide assembly comprising a guide sleeve and a guide column, the guide sleeve being arranged on the ring beam of one of the two adjacent support frames, the guide column being arranged on the ring beam of the other of the two adjacent support frames, and the guide sleeve being movable relative to the guide column along the axial direction of the tower body; And / or, the height of the tower body in the axial direction is 50 meters to 100 meters, and the length and width of the tower body in the horizontal direction are 10 meters to 20 meters.

5. The carbon capture absorption tower according to claim 1, characterized in that: A first compensator is provided between two adjacent support frames; and / or, a second compensator is provided between two adjacent tower sections; and / or, a ratio of the dimensions of the first section to the second section in the axial direction of the tower body is 3 to 18; And / or, the first section is fixed to the corresponding tower body section by welding.

6. The carbon capture absorption tower according to claim 1, characterized in that: The tower body section located at the lowermost side of the tower body is spaced apart from the ground.

7. The carbon capture absorption tower according to claim 6, characterized in that: The distance between the tower body section located at the lowest side of the tower body and the ground is 500 mm to 1500 mm; and / or, a heat insulation layer is provided between the bottom of the tower section located at the lowest side of the tower body and the ground; And / or, a shock-absorbing rubber bearing is provided between the bottom of the tower body section located at the lowest side of the tower body and the ground, and the number of the shock-absorbing rubber bearings is multiple, and the multiple shock-absorbing rubber bearings are arranged in an array.

8. The carbon capture absorption tower according to claim 1, characterized in that: It also includes a top cover, which is arranged on the top of the tower body. The cross-sectional area of ​​the top cover gradually decreases from an end close to the tower body to an end away from the tower body.

9. The carbon capture absorption tower according to claim 8, characterized in that: The top cover has a plurality of side panels, each of which has a first preset angle with a horizontal plane. The plurality of side panels are sequentially arranged along the circumference of the tower body and are in the shape of a pyramid truncated cone. The first preset angle is 55° to 65°. And / or, the top cover has a first port and a second port, the first port is correspondingly connected to the tower body, the second port is used to connect to the smoke exhaust pipe, and the ratio of the flow area of ​​the first port to the flow area of ​​the second port is 4 to 10; And / or, it further includes a plurality of third beams, which are arranged in a grid shape and fixed together, and the third beams are in contact with and fixedly connected to the outer wall surface of the top cover.

10. A carbon capture system, characterized in that: The method comprises an absorption tower and a regeneration tower, wherein the absorption tower is a carbon capture absorption tower according to any one of claims 1 to 9, and the absorption tower is connected to the regeneration tower; The flue gas passes into the inner cavity of the absorption tower through the bottom of the absorption tower, and contacts and reacts with the absorbent falling from the top of the absorption tower to capture carbon dioxide in the flue gas. The flue gas after removing carbon dioxide is discharged through the top of the absorption tower. The absorbent after absorbing carbon dioxide is regenerated in the regeneration tower and refluxes to the top of the absorption tower.

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