Regeneration tower and carbon dioxide capture system with same

Abstract

The embodiment of the invention provides a regeneration tower and a carbon dioxide trapping system with the regeneration tower. The regeneration tower provided by the embodiment of the invention comprises a tower body, a support reinforcing member and a detector, a detection opening, a rich solution inlet, a barren solution outlet and a gas phase outlet are formed in the side wall of the tower body, the barren solution outlet is formed in the bottom of the tower body, and the gas phase outlet is formed in the top of the tower body; one end of the supporting and reinforcing part is arranged on the inner wall of the tower body and extends towards the interior of the tower body, and the supporting and reinforcing part is provided with a fixing site; and the detector penetrates into the tower body from the detection opening, and is fixed on the fixed site. And the additionally arranged support reinforcing member can reinforce the rod body structure of the detector, so that the rod body part of the detector is prevented from swinging under the impact of airflow or solid particles. Therefore, the regeneration tower disclosed by the embodiment of the invention has the advantage of improving the data accuracy of the detector in the tower body.

Description

Technical Field

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

[0002] After the carbon dioxide released by the thermal power plant or boiler is absorbed by the absorption tower, it will be desorbed after being heated in the regeneration tower so that the carbon dioxide can be separated from the absorbent liquid. In the related art, it is necessary to install various types of sensors in the regeneration tower to detect the tower body for monitoring. However, due to the large inner diameter of the tower body, the corresponding detector goes deep into the middle of the tower body. The length from the inner wall of the tower body to the detection point is generally more than 1000mm. If the cantilever length of the rod or tube of the detector is too long, it will be affected by turbulence, bubbles or solid particles, causing the rod to swing, resulting in inaccurate readings and affecting the detection results. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a regeneration tower. The regeneration tower has the advantage of improving the accuracy of detector data in the tower body.

[0004] An embodiment of the present invention further provides a carbon dioxide capture system.

[0005] The regeneration tower according to the embodiment of the present invention comprises a tower body, a supporting reinforcement member and a detector.

[0006] 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, wherein 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 supporting reinforcement is arranged on the inner wall of the tower body and extends toward the inside of the tower body, and the supporting reinforcement has a fixed position; the detector penetrates into the tower body through the detection port, and the detector is fixed at the fixed position.

[0007] The regeneration tower of the embodiment of the present invention is reinforced by adding the support reinforcement member in the tower body, inserting the detector into the tower body through the detection port, and fixing the detector on the support reinforcement member. Thus, the rod structure of the detector is reinforced. Thus, the rod part of the detector can be prevented from swinging under the impact of airflow or solid particles, resulting in the problem of detection data deviation. Therefore, the regeneration tower of the embodiment of the present invention increases the accuracy of the detector data.

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

[0009] In some embodiments, the supporting reinforcement member includes a reinforcing rib plate and a sleeve, the reinforcing rib plate is connected to the tower body, the sleeve is connected to the lower end surface of the reinforcing rib plate, the inner surface of the sleeve forms the fixing point, and the detector is installed on the sleeve.

[0010] In some embodiments, the regeneration tower further includes a reinforcement member, and the reinforcement member is 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 staggered with the reinforcing rib in the up and down directions of the tower body.

[0013] In some embodiments, the detector has an inspection point at the end, the distance between the inspection 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;

[0014] In some embodiments, the regeneration tower further includes a shock absorber, which is disposed in the sleeve and along the inner circumference of the sleeve. The rod of the detector passes through the sleeve and abuts against the shock absorber.

[0015] In some embodiments, the tower body of the regeneration tower has a decomposition chamber and a plurality of packing supports spaced apart along its height direction to form a plurality of packing chambers, the decomposition chamber is located below the packing chamber at the most downstream end, the packing chamber has the lean liquid outlet below, 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 packing chamber at the most upstream end.

[0016] In some embodiments, the regeneration tower also includes a plurality of heat transfer pipes and a reboiler. A heat transfer pipe is arranged in each packing chamber, and each heat transfer pipe is arranged in each packing chamber one by one. The heat transfer pipe in each packing chamber is arranged in series in the opposite direction along the flow direction of the absorption liquid in the tower body, and the reboiler can exchange heat with the heat transfer pipe.

[0017] In some embodiments, the heat transfer pipe located in the packing chamber at the most downstream is connected to the lean liquid outlet, and the heat transfer pipe located in the packing chamber at the most upstream can be connected to the outside.

[0018] In some embodiments, the heat transfer pipe fittings include a bus, multiple main pipes and multiple branch pipes, the lean liquid outlet is connected to the multiple main pipes through the bus, 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, and the multiple branch pipes and the packing support and / or the tower body define the packing chamber.

[0019] In some embodiments, the detector includes a plurality of air pressure detectors and a plurality of liquid level gauges, wherein the plurality of air pressure detectors are correspondingly arranged along the circumference of the tower body in the part between the analysis chamber and the most downstream filling chamber in the tower body, and the plurality of liquid level gauges are spaced apart in the analysis chamber along the height direction of the tower body.

[0020] The carbon dioxide capture system according to the embodiment of the present invention comprises an absorption tower and a regeneration tower according to any one of the above-mentioned methods, wherein the absorption tower is in circulation communication with the regeneration tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the regeneration tower of the embodiment of the present invention.

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

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

[0024] Reference numerals:

[0025] Regeneration tower 100;

[0026] Tower body 1; detection port 11; rich liquid inlet 12; lean liquid outlet 13; gas phase outlet 14; packing chamber 15; analysis chamber 16;

[0027] Support reinforcement member 2; reinforcement rib plate 21; sleeve 22;

[0028] Detector 3;

[0029] Reinforcement 4;

[0030] Distributor 5; packing layer 6;

[0031] Heat transfer pipe 7; bus 71; main pipe 72; branch pipe 73;

[0032] Reboiler 8. DETAILED DESCRIPTION

[0033] 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.

[0034] Reference below Figure 1-Figure 3 A regeneration tower 100 and a carbon dioxide capture system having the regeneration tower 100 according to an embodiment of the present invention are described.

[0035] The regeneration tower 100 according to the embodiment of the present 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 arranged on the inner wall of the tower body 1 and extends toward the inside of the tower body 1, and the support reinforcement 42 has a fixed position; the detector 3 penetrates into the tower body 1 through the detection port 11, and the detector 3 is fixed at the fixed position.

[0037] The regeneration tower 100 of the embodiment of the present invention is reinforced by adding a support reinforcement member 42 in the tower body 1, inserting the detector 3 into the tower body 1 through the detection port 11, and fixing the detector 3 on the support reinforcement member 42. Thus, the rod structure of the detector 3 is reinforced. Thus, the rod part of the detector 3 can be prevented from swinging under the impact of airflow or solid particles, resulting in a problem of detection data deviation. Therefore, the regeneration tower 100 of the embodiment of the present invention increases the accuracy of the data of the detector 3.

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

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

[0040] The regeneration tower 100 of the embodiment of the present invention is achieved by dividing the supporting reinforcement member 42 into a reinforcing rib plate 21 and a sleeve 22. The sleeve 22 is connected to the lower end surface of the reinforcing rib plate 21 and forms a fixed position on the sleeve 22. The detector 3 is inserted into the sleeve 22. The positioning of the rod body of the detector 3 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 in installation and disassembly.

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

[0042] The regeneration tower 100 of the embodiment of the present invention can reinforce the reinforcing rib plate 21 by providing a reinforcing member 4 under the reinforcing rib plate 21 to support and position the reinforcing rib plate 21, thereby preventing the reinforcing rib plate 21 from having poor positioning firmness, easy displacement and looseness. Furthermore, the problem of shaking of the detector 3 connected to the supporting reinforcing member 42 is further avoided. Therefore, the regeneration tower 100 of the embodiment of the present invention helps to further improve the accuracy of the data of the detector 3.

[0043] Optionally, the reinforcement member 4 may be in the form of a substantially L-shaped rib plate, one side of the L-shaped rib plate is connected to the tower body 1 , and one side of the L-shaped rib plate is supported below the reinforcing rib plate 21 .

[0044] like Figure 2 and Figure 3 As shown, there is a predetermined distance between the sleeve 22 and the inner wall of the tower body 1, and 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 supporting point of the tower body 1 to it, and avoids the overhanging size of the support reinforcement 42. Furthermore, it helps to reduce the possibility of shaking of the support reinforcement 42. Therefore, the regeneration tower 100 of the embodiment of the present invention helps to further improve the accuracy of the data 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 , the other end of the reinforcing rib plate 21 is cantilevered, and the detection point of the detector 3 is staggered with the reinforcing rib plate 21 in the up and down direction of the tower body 1 .

[0046] The regeneration tower 100 of the embodiment of the present invention prevents the additional support reinforcement member 42 from blocking the rising airflow and affecting the nearby local airflow or temperature, thereby causing measurement deviation, by displacing the detection point of the detector 3 and the reinforcement rib 21 in the vertical direction of the tower body 1. Therefore, the regeneration tower 100 of the embodiment of the present invention helps to further improve the data accuracy of the detector 3.

[0047] The detector 3 has an inspection point at the end, 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 not greater than 800 mm.

[0048] The regeneration tower 100 of the embodiment of the present invention can avoid the problem of the rod body of the detector 3 swinging due to airflow turbulence caused by too large data difference by limiting the difference between L1 and L2 to no more than 800 mm, and avoid the problem of the rod body shaking due to too large cantilever size. Therefore, the regeneration tower 100 of the embodiment of the present invention helps to further improve the data accuracy of the detector 3.

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

[0050] The regeneration tower 100 of the embodiment of the present invention further includes a shock absorber (not shown), which is disposed in the sleeve 22 and along the inner circumference 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 the embodiment of the present invention can fill the shock-absorbing member between the rod body and the sleeve 22 by adding the shock-absorbing member on the inner circumference of the sleeve 22. When the shock-absorbing member is installed with the rod body and the sleeve 22, it can limit the rod body and help to suppress the shaking of the rod body. Therefore, the regeneration tower 100 of the embodiment of the present 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 decomposition chamber 16 and a plurality of packing supports spaced apart along its height direction to form a plurality of packing chambers 15, the decomposition chamber 16 is located below the most downstream packing chamber 15, a lean liquid outlet 13 is provided below the packing chamber 15, a packing layer 6 is provided in each packing chamber 15, a distributor 5 is provided above each packing chamber 15, and a gas phase outlet 14 is provided above the most upstream packing chamber 15.

[0053] The regeneration tower 100 of the embodiment of the present invention is provided with a decomposition chamber 16 in the tower body 1 and a plurality of packing supports are spaced apart along the height direction thereof to form a plurality of packing chambers 15, a packing layer 6 is provided in each packing chamber 15, and the packing layer 6 provides a huge specific surface area, which helps the gas-liquid two phases to contact more fully and, through the plurality of packing chambers 15, the packing layers 6 are stacked, and the gas and liquid are contacted at multiple stages in the tower body 1, which can enhance the mass transfer and heat transfer process between the gas-liquid two phases.

[0054] Optionally, there may be multiple rich liquid inlets 12 , and each of the multiple packing chambers 15 is correspondingly provided with a rich liquid inlet 12 .

[0055] Optionally, the packing layer 6 can be composed of metal perforated plate corrugated packing. The packing layer 6 can also be composed of wire mesh or rings made of stainless steel.

[0056] like Figure 1 and Figure 2As shown, the regeneration tower 100 of the embodiment of the present invention further includes a plurality of heat transfer pipes 7 and a reboiler 8. A heat transfer pipe 7 is arranged in each packing chamber 15. Each heat transfer pipe 7 is arranged one by one and crisscrossed in each packing chamber 15. The heat transfer pipes 7 in each packing chamber 15 are arranged in series in the opposite direction along the flow direction of the absorption liquid in the tower body 1, and the reboiler 8 can exchange heat with the heat transfer pipes 7.

[0057] The regeneration tower 100 of the embodiment of the present invention, through the additional heat transfer pipe 7 and the reboiler 8, each heat transfer pipe 7 is arranged in each packing chamber 15 in a one-to-one correspondence, so that the rich liquid and the heat transfer pipe 7 are directly exchanged with each other (that is, the original indirect heat exchange is changed to direct contact heat exchange), thereby keeping the absorption liquid at a relatively high temperature. Therefore, the regeneration tower 100 of the embodiment of the present invention helps to improve the gas-liquid mass transfer effect and the desorption efficiency.

[0058] In addition, the heat transfer pipes 7 in each packing chamber 15 are arranged in series in the opposite direction along the flow direction of the absorption liquid in the tower body 1, which can reduce heat loss with a smaller temperature difference and help reduce energy consumption.

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

[0060] The regeneration tower 100 of the embodiment of the present invention connects the heat transfer pipe 7 in the packing chamber 15 located at the most downstream with the lean liquid outlet 13, so that the heat stored in the lean liquid outlet 13 is utilized by the packing layer 6 of the upper packing chamber 15, thereby promoting the heat exchange of the rich liquid, and can partially or completely replace the traditional steam heating, thereby avoiding the consumption of high-value superheated steam, which is beneficial to significantly reduce the CO2 desorption cost of coal-fired power plants. In other words, the heat contained in the regenerated gas can be fully utilized to preheat the rich liquid, thereby reducing the energy consumption in the rich liquid desorption process. As a result, the advantages of reducing capture costs and reducing steam consumption are reduced. In other words, the heat contained in the regenerated gas can be fully utilized to preheat the rich liquid, thereby reducing the energy consumption in the rich liquid desorption process.

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

[0062] It can be understood that multiple main pipes 72 extend into the packing chamber along the extension direction of the packing support, which can achieve heating of the bottom of the packing layer 6 of 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 the embodiment of the present invention is divided into a bus 71, a plurality of main pipes 72 and a plurality of branch pipes 73 by dividing the heating assembly, wherein the plurality of main pipes 72 extend along the extension direction of the packing support, and the plurality of branch pipes 73 extend along the height direction of the tower body 1. Thus, heat exchange is achieved at the bottom edge and the plurality of side edges of the packing layer 6, which not only improves the heat exchange efficiency, but also helps to improve the uniformity of the absorption liquid temperature. Thus, the regeneration tower 100 of the embodiment of the present invention helps to further improve the CO2 desorption efficiency.

[0064] Furthermore, the plurality of main pipes 72 extend in a direction perpendicular to the height of the tower body 1, and the plurality of branch pipes 73 can be arranged regularly to form a plurality of packing chambers of triangular, square or rectangular structures. That is, the plurality of branch pipes 73 can be arranged inside the reaction chamber and sandwiched between adjacent packing layers 6, so that the packing layers 6 can be heated in time. Thus, the regeneration tower 100 of the embodiment of the present invention greatly improves the heat exchange efficiency.

[0065] The detector 3 includes a plurality of air pressure detectors 3 and a plurality of liquid level gauges. The plurality of air pressure detectors 3 are correspondingly arranged in the part between the analysis chamber 16 and the most downstream packing chamber 15 in the tower body 1 along the circumferential direction of the tower body 1, and the plurality of liquid level gauges are arranged in the analysis chamber 16 at intervals along the height direction of the tower body 1. Thus, comprehensive detection of multiple detection points in the tower body 1 is achieved, which helps to further improve the detection accuracy.

[0066] The carbon dioxide capture system according to the embodiment of the present invention comprises an absorption tower and a regeneration tower 100 according to any one of the above items, and the absorption tower is in circulation communication with the regeneration tower 100 .

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

[0068] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A regeneration tower, It is characterized in that include: A tower body, wherein 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; A support reinforcement member, one end of which is arranged on the inner wall of the tower body and extends toward the inside of the tower body, and the support reinforcement member has a fixing point; A detector is inserted into the tower body through the detection port, and the detector is fixed at the fixed position.

2. The regeneration tower according to claim 1, It is characterized in that The supporting reinforcement member includes a reinforcing rib plate and a sleeve, wherein the reinforcing rib plate is connected to the tower body, the sleeve is connected to the lower end surface of the reinforcing rib plate, the inner surface of the sleeve forms the fixing site, and the detector is penetrated through the sleeve.

3. The regeneration tower according to claim 2, It is characterized in that It also includes a reinforcement member, which is arranged below the reinforcement rib plate to support and position the reinforcement rib plate; And / or, 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; And / or, one end of the reinforcing rib plate is connected to the tower body, the other end of the reinforcing rib plate is cantilevered, and the detection point of the detector is staggered with the reinforcing rib plate in the up and down directions of the tower body.

4. The regeneration tower according to claim 2, It is characterized in that The detector has an inspection point at the end, the distance between the inspection 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, it also includes a shock absorbing component, which is arranged in the sleeve, and the shock absorbing component is arranged along the inner circumference of the sleeve, and the rod body of the detector passes through the sleeve and abuts against the shock absorbing component.

5. The regeneration tower according to claim 1, It is characterized in that The tower body is provided with a decomposition chamber and a plurality of packing supports spaced apart along its height direction to form a plurality of packing chambers, the decomposition chamber is located below the packing chamber at the most downstream, the packing chamber has the lean liquid outlet at the bottom, 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 packing chamber at the most upstream.

6. The regeneration tower according to claim 5, It is characterized in that It also includes a plurality of heat transfer pipes and a reboiler. A heat transfer pipe is arranged in each packing chamber. Each heat transfer pipe is arranged in each packing chamber in a one-to-one correspondence. The heat transfer pipe in each packing chamber is arranged in series in the opposite direction along the flow direction of the absorption liquid in the tower body. The reboiler can exchange heat with the heat transfer pipe.

7. The regeneration tower according to claim 6, It is characterized in that The heat transfer pipe in the packing chamber located at the most downstream is communicated with the lean liquid outlet, and the heat transfer pipe in the packing chamber located at the most upstream can be communicated with the outside.

8. The regeneration tower according to claim 7, It is characterized in that The heat transfer pipe fittings include a bus, a plurality of main pipes and a plurality of branch pipes. The main pipes and the plurality of branch pipes are crisscrossed in the packing chamber. The lean liquid outlet is connected to the plurality of main pipes through the bus. Each of the branch pipes is connected to the main pipes. Each of the main pipes extends along the extension direction of the packing support. Each of the branch pipes extends into the packing chamber along the height direction of the tower body. The plurality of branch pipes and the packing support and / or the tower body define the packing chamber.

9. The regeneration tower according to claim 5, It is characterized in that The detector includes a plurality of air pressure detectors and a plurality of liquid level gauges. The plurality of air pressure detectors are correspondingly arranged along the circumference of the tower body in the part between the analysis chamber and the most downstream filling chamber in the tower body, and the plurality of liquid level gauges are arranged in the analysis chamber at intervals along the height direction of the tower body.

10. A carbon dioxide capture system, It is characterized in that The invention comprises an absorption tower and a regeneration tower according to any one of claims 1 to 9, wherein the absorption tower is in circulation communication with the regeneration tower.

Images