Regeneration system and flue gas treatment system

Abstract

The application discloses a regeneration system and a flue gas treatment system. The regeneration system comprises a regeneration tower, a reboiler and a liquid distribution assembly. The regeneration tower has a cavity, a first inlet and a first outlet. The first inlet and the first outlet are communicated with the cavity. The regeneration tower is suitable for being filled with rich liquid. One end of the reboiler is communicated with the first outlet of the regeneration tower. The rich liquid in the regeneration tower flows into the reboiler through the first outlet, so that the rich liquid is heated into a gas-liquid mixture by the reboiler. The other end of the reboiler is communicated with the first inlet. The gas-liquid mixture in the reboiler flows into the regeneration tower. The liquid distribution assembly has a channel. The liquid distribution assembly is arranged in the first inlet. The channel extends along the circumference of the regeneration tower. Two ends of the channel are communicated with the reboiler and the cavity respectively. The gas-liquid mixture in the reboiler flows into the regeneration tower through the channel. The regeneration system has the advantages of small impact on the inner part, uniform gas-liquid distribution, good regeneration effect and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of flue gas treatment, in particular, to a regeneration system and a flue gas treatment system. BACKGROUND

[0002] The flue gas discharged by a coal-fired boiler is generally treated by high-temperature adsorption in an adsorption tower. High-temperature flue gas at a temperature of about 200℃ is introduced into the adsorption tower, and the pollutants (sulfides and nitrogen oxides) in the high-temperature flue gas are adsorbed and removed by the adsorbent in the adsorption tower. The adsorbent saturated with adsorption is transported to a regeneration tower for heating and desorption regeneration. The pollutants desorbed from the adsorbent are recovered for use, and the adsorbent is regenerated.

[0003] In the related art, the rich liquid is heated by a reboiler and then introduced into the regeneration tower to promote the regeneration of the rich liquid and improve the regeneration effect. The rich liquid heated by the reboiler forms a gas-liquid mixture of gas and liquid, which has a large impact on the internals when introduced into the regeneration tower. In addition, due to the uneven distribution of gas and liquid, the regeneration effect is affected. SUMMARY

[0004] The present application aims to at least partially solve one of the technical problems in the related art.

[0005] To this end, an embodiment of the present application proposes a regeneration system with small impact on the internals and good regeneration effect.

[0006] An embodiment of the present application proposes a flue gas treatment system with simple structure and low cost.

[0007] The regeneration system according to an embodiment of the present application comprises: a regeneration tower, the regeneration tower having a chamber, a first inlet and a first outlet, the first inlet and the first outlet both communicating with the chamber, the regeneration tower being adapted to introduce a rich liquid; a reboiler, one end of the reboiler communicating with the first outlet of the regeneration tower, so that the rich liquid in the regeneration tower flows into the reboiler through the first outlet to heat the rich liquid into a gas-liquid mixture by the reboiler, the other end of the reboiler communicating with the first inlet, so that the gas-liquid mixture in the reboiler flows into the regeneration tower through the first inlet; and a liquid distribution assembly, the liquid distribution assembly having a passage and being arranged in the first inlet, the passage extending along the circumference of the regeneration tower, and both ends of the passage communicating with the reboiler and the chamber, respectively, so that the gas-liquid mixture in the reboiler flows into the regeneration tower through the passage.

[0008] The regeneration system according to an embodiment of the present application is provided with a liquid distribution assembly, so that the gas-liquid mixture is dispersed in the chamber, the uniformity of gas-liquid distribution is improved, the gas-liquid mixture is prevented from having a large impact on the internals of the regeneration tower, the service life of the regeneration tower is prolonged, and the regeneration effect of the regeneration tower is improved.

[0009] In some embodiments, the liquid distribution assembly comprises: a mounting plate; a liquid distribution member provided on the mounting plate, a cross-sectional area of an outer circumferential surface of the liquid distribution member gradually increases from the first inlet toward an interior of the regeneration tower; and a liquid distribution plate provided on the mounting plate and located at one side of the liquid distribution member, the liquid distribution plate is spaced apart from the liquid distribution member to form the passage, so that the gas stream flowing into the first inlet flows into the regeneration tower through the liquid distribution member.

[0010] In some embodiments, the liquid distribution member comprises a first plate and a second plate, the first plate and the second plate are both vertical plates and are both provided on the mounting plate, the first plate and the second plate both extend from the first inlet toward the interior of the regeneration tower, one end of the first plate and one end of the second plate are connected and the extending direction of the first plate and the extending direction of the second plate intersect at an angle, the liquid distribution plate is provided at a side of the first plate away from the second plate, and / or the liquid distribution plate is provided at a side of the second plate away from the first plate.

[0011] In some embodiments, the liquid distribution plate comprises: a plurality of first liquid distribution plates, the plurality of first liquid distribution plates are both vertical plates and are both provided on the mounting plate, the plurality of first liquid distribution plates are all provided at a side of the first plate away from the second plate, each of the first liquid distribution plates extends from the first inlet toward the interior of the regeneration tower and the extending direction of the first liquid distribution plate intersects with the radial direction of the regeneration tower at an angle, the plurality of first liquid distribution plates are spaced apart, and adjacent two of the first liquid distribution plates define the passage; and / or a plurality of second liquid distribution plates, the plurality of second liquid distribution plates are both vertical plates and are both provided on the mounting plate, the plurality of second liquid distribution plates are all provided at a side of the second plate away from the first plate, each of the second liquid distribution plates extends from the first inlet toward the interior of the regeneration tower and the extending direction of the second liquid distribution plate intersects with the radial direction of the regeneration tower at an angle, the plurality of second liquid distribution plates are spaced apart, and adjacent two of the second liquid distribution plates define the passage.

[0012] In some embodiments, at least part of the first liquid distribution plates extends along the circumferential direction of the regeneration tower and is inclined toward the interior of the regeneration tower, and / or at least part of the second liquid distribution plates extends along the circumferential direction of the regeneration tower and is inclined toward the interior of the regeneration tower.

[0013] In some embodiments, the spacing between adjacent two of the first liquid distribution plates gradually increases in a direction away from the liquid distribution member, and / or the spacing between adjacent two of the second liquid distribution plates gradually increases in a direction away from the liquid distribution member.

[0014] In some embodiments, the distance between two adjacent first liquid distribution plates gradually increases from top to bottom, and / or the distance between two adjacent second liquid distribution plates gradually increases from top to bottom.

[0015] In some embodiments, the first inlets are multiple, the multiple first inlets are arranged along the circumference of the regeneration tower, the liquid distribution assemblies are multiple, and the multiple liquid distribution assemblies are arranged one by one in the first inlets, and the reboiler is in communication with the multiple first inlets.

[0016] In some embodiments, the regeneration system further comprises a delivery pipe, the delivery pipe is arranged around the outer circumferential surface of the regeneration tower, one end of the delivery pipe is in communication with the reboiler, so that the gas-liquid mixture in the reboiler flows into the delivery pipe, and the delivery pipe is provided with multiple delivery ports, and the multiple delivery ports are in one-to-one correspondence with the multiple first inlets.

[0017] The flue gas treatment system according to the embodiments of the present application comprises: an absorption tower, the absorption tower is provided with lean liquid and is adapted to be communicated with flue gas, so that the lean liquid absorbs carbon dioxide in the flue gas to convert the lean liquid into rich liquid; a regeneration system, the regeneration system is the regeneration system of the above embodiments, one end of the regeneration tower of the regeneration system is in communication with one end of the absorption tower, so that the rich liquid in the absorption tower flows into the regeneration tower to decompose the rich liquid into lean liquid, and the other end of the regeneration tower is in communication with the other end of the absorption tower, so that the lean liquid in the regeneration tower flows into the absorption tower. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the flue gas treatment system according to the embodiments of the present application.

[0019] Figure 2 is a sectional view of the regeneration tower of the regeneration system according to the embodiments of the present application.

[0020] Figure 3 is Figure 2 is a partial enlarged view of

[0021] The flue gas treatment system 100;

[0022] The absorption tower 1; the regeneration tower 2; the first inlet 21; the first outlet 22;

[0023] The reboiler 3;

[0024] The liquid distribution assembly 4; the mounting plate 41; the liquid distribution member 42; the first plate 421; the second plate 422; the first liquid distribution plate 431; the second liquid distribution plate 432; the channel 44;

[0025] The delivery pipe 5. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] A regeneration system according to an embodiment of the present application is described below with reference to the drawings.

[0028] As shown in the drawings, the regeneration system according to an embodiment of the present application includes a regeneration tower 2, a reboiler 3, and a liquid distribution assembly 4. Figures 1-3 The regeneration tower 2 has a chamber, a first inlet 21, and a first outlet 22, both of which communicate with the chamber, and is adapted to pass in rich liquid. Specifically, as shown in the drawings, the regeneration tower 2 is a tower body extending in the up-down direction, and has the first inlet 21, the first outlet 22, a second inlet, and a second outlet, all of which communicate with the chamber. The second inlet is located at the top of the regeneration tower 2, and the second outlet is located at the bottom of the regeneration tower 2. The rich liquid can flow into the chamber through the second inlet, and after being regenerated and decomposed into lean liquid in the chamber, the lean liquid can flow out of the regeneration tower 2 from the second outlet.

[0029] Figure 1 The reboiler 3 is connected to the first outlet 22 of the regeneration tower 2 at one end, so that the rich liquid in the regeneration tower 2 flows into the reboiler 3 through the first outlet 22 to heat the rich liquid to generate a gas-liquid mixture in the reboiler 3. The other end of the reboiler 3 is connected to the first inlet 21, so that the gas-liquid mixture in the reboiler 3 flows into the regeneration tower 2. Specifically, as shown in the drawings, the inlet of the reboiler 3 is connected to the first outlet 22 of the regeneration tower 2, and the rich liquid flowing out of the regeneration tower 2 is heated in the reboiler 3 to decompose into a gas-liquid mixture (lean liquid and carbon dioxide). The outlet of the reboiler 3 is connected to the first inlet 21 of the regeneration tower 2, so that the carbon dioxide and the lean liquid flow into the regeneration tower 2, and the gas-liquid mixture heats the rich liquid in the regeneration tower 2 to generate part of the rich liquid into the lean liquid and the carbon dioxide.

[0030] The liquid distribution assembly 4 has a passage 44 and is arranged in the first inlet 21. The passage 44 extends along the circumference of the regeneration tower 2, and both ends of the passage 44 communicate with the reboiler 3 and the chamber, respectively, so that the gas-liquid mixture in the reboiler 3 flows into the regeneration tower 2 through the passage 44. Specifically, as shown in the drawings, the liquid distribution assembly 4 is arranged in the first inlet 21, and has a passage 44 extending along the circumference of the regeneration tower 2. The inlet of the passage 44 communicates with the outlet of the reboiler 3, and the outlet of the passage 44 communicates with the chamber. Thus, the gas-liquid mixture (lean liquid and carbon dioxide) flowing out of the reboiler 3 flows into the chamber through the passage 44. Figure 1

[0031] The liquid distribution assembly 4 has a passage 44 and is arranged in the first inlet 21. The passage 44 extends along the circumference of the regeneration tower 2, and both ends of the passage 44 communicate with the reboiler 3 and the chamber, respectively, so that the gas-liquid mixture in the reboiler 3 flows into the regeneration tower 2 through the passage 44. Specifically, as shown in the drawings, the liquid distribution assembly 4 is arranged in the first inlet 21, and has a passage 44 extending along the circumference of the regeneration tower 2. The inlet of the passage 44 communicates with the outlet of the reboiler 3, and the outlet of the passage 44 communicates with the chamber. Thus, the gas-liquid mixture (lean liquid and carbon dioxide) flowing out of the reboiler 3 flows into the chamber through the passage 44. Figures 1-3 ​​​

[0032] The regeneration system of the embodiment of the present application is provided with the liquid distribution assembly 4, so that the outflowing gas-liquid mixture heated by the reboiler 3 flows into the liquid distribution assembly 4, and the gas-liquid mixture is dispersed in the chamber by the liquid distribution assembly 4, thereby improving the uniformity of the distribution of the gas-liquid mixture, preventing the gas-liquid mixture from directly impacting the internals of the regeneration tower 2, prolonging the service life of the regeneration tower 2, and improving the regeneration effect of the regeneration tower 2.

[0033] In some embodiments, the liquid distribution assembly 4 comprises a mounting plate 41, a liquid distribution member 42, and a liquid distribution plate.

[0034] The liquid distribution member 42 is arranged on the mounting plate 41, and the cross-sectional area of the outer circumferential surface of the liquid distribution member 42 gradually increases from the first inlet 21 towards the inside of the regeneration tower 2. Specifically, as shown in Figures 1-3 the mounting plate 41 is a horizontal plate, the liquid distribution member 42 is arranged on the mounting plate 41, and the cross-sectional area of the outer circumferential surface of the liquid distribution member 42 gradually increases from the outside to the inside. When the gas-liquid mixture flows into the first inlet 21, the gas-liquid mixture can be distributed on both sides of the liquid distribution member 42 due to the arrangement of the liquid distribution member 42.

[0035] The liquid distribution plate is arranged on the mounting plate 41 and located on one side of the liquid distribution member 42, and is arranged in a spaced manner with the liquid distribution member 42 to form a passage 44, so that the gas flow flowing into the first inlet 21 flows into the regeneration tower 2 through the liquid distribution member 42. Specifically, as shown in Figure 2 and Figure 3 the liquid distribution plate is an upright plate extending upward and downward and arranged on the mounting plate 41. The arrangement of the liquid distribution plate can be adjusted according to actual conditions, for example, the liquid distribution plate can be arranged on the left side of the liquid distribution member 42 and arranged in a spaced manner with the liquid distribution member 42 to form the passage 44, or the liquid distribution plate can be arranged on the right side of the liquid distribution member 42 and arranged in a spaced manner with the liquid distribution member 42 to form the passage 44, so that the gas-liquid mixture is dispersed in the regeneration tower 2 through the passage 44.

[0036] In some embodiments, the liquid distribution member 42 comprises a first plate 421 and a second plate 422, both of which are upright plates arranged on the mounting plate 41, both of which extend from the first inlet 21 towards the inside of the regeneration tower 2, one end of the first plate 421 is connected to one end of the second plate 422, and the extension direction of the first plate 421 and the extension direction of the second plate 422 intersect at an angle, the liquid distribution plate is arranged on the side of the first plate 421 away from the second plate 422, and / or the liquid distribution plate is arranged on the side of the second plate 422 away from the first plate 421. Specifically, as shown in Figure 2 and Figure 3As shown, both the first plate 421 and the second plate 422 are vertical plates. Both the first plate 421 and the second plate 422 are mounted on the mounting plate 41 and generally form a herringbone shape. The liquid distribution plate can be set according to the actual situation. For example, the liquid distribution plate can be set on the left side of the first plate 421 and spaced apart from the first plate 421 to form a channel 44, or the liquid distribution plate can be set on the right side of the second plate 422 and spaced apart from the second plate 422 to form a channel 44. Thus, the gas-liquid mixture is diverted through the first plate 421 and the second plate 422, so that part of the gas-liquid mixture flows into the left side of the first plate 421 and the other part flows into the right side of the second plate 422, so that the gas-liquid mixture is dispersed in the regeneration tower 2, preventing the gas-liquid mixture from severely scouring the internal parts of the regeneration tower 2 and ensuring the service life of the regeneration tower 2.

[0037] In some embodiments, the liquid distribution plate includes a plurality of first liquid distribution plates 431 and a plurality of second liquid distribution plates 432.

[0038] Multiple first liquid distribution plates 431 are all vertical plates and are all mounted on the mounting plate 41. Each first liquid distribution plate 431 is located on the side of the first plate 421 away from the second plate 422. Each first liquid distribution plate 431 extends from the first inlet 21 toward the interior of the regeneration tower 2, and its extension direction intersects the radial direction of the regeneration tower 2 at an angle. The multiple first liquid distribution plates 431 are spaced apart, and adjacent first liquid distribution plates 431 define a channel 44. Similarly, multiple second liquid distribution plates 432 are all vertical plates and are all mounted on the mounting plate 41. Each second liquid distribution plate 432 is located on the side of the second plate 422 away from the first plate 421. Each second liquid distribution plate 432 extends from the first inlet 21 toward the interior of the regeneration tower 2, and its extension direction intersects the radial direction of the regeneration tower 2 at an angle. The multiple second liquid distribution plates 432 are spaced apart, and adjacent second liquid distribution plates 432 define a channel 44. Specifically, as... Figure 3 As shown, multiple first liquid distribution plates 431 are arranged on the left side of the first plate 421 and spaced apart in the inward and outward directions to form multiple channels 44. The extension direction of the multiple first liquid distribution plates 431 can extend along the circumference of the regeneration tower 2. The dispersion efficiency of the gas-liquid mixture on the left side of the liquid distribution member 42 can be improved by the multiple first liquid distribution plates 431. Multiple second liquid distribution plates 432 are arranged on the right side of the second plate 422 and spaced apart in the inward and outward directions to form multiple channels 44. The extension direction of the multiple second liquid distribution plates 432 can extend along the circumference of the regeneration tower 2. The dispersion efficiency of the gas-liquid mixture on the right side of the liquid distribution member 42 can be improved by the multiple second liquid distribution plates 432. Thus, the multiple first liquid distribution plates 431 and the multiple second liquid distribution plates 432 help to distribute the gas-liquid mixture more evenly throughout the chamber of the regeneration tower 2, so that the gas-liquid mixture forms a finer flow pattern in the regeneration tower 2, thereby improving the efficiency of the regeneration process.

[0039] In some embodiments, at least part of the first liquid distribution plate 431 extends along the circumference of the regeneration tower 2 and is inclined toward the interior of the regeneration tower 2, and at least part of the second liquid distribution plate 432 extends along the circumference of the regeneration tower 2 and is inclined toward the interior of the regeneration tower 2. Specifically, as shown in Figure 3 the left end of the first liquid distribution plate 431 extends along the circumference of the tower body of the regeneration tower 2 and is inclined toward the interior of the regeneration tower 2, and the right end of the second liquid distribution plate 432 extends along the circumference of the tower body of the regeneration tower 2 and is inclined toward the interior of the regeneration tower 2, so that, by the arrangement of the first liquid distribution plate 431 and the second liquid distribution plate 432, the gas-liquid mixture flowing into the regeneration tower 2 is further improved, and the gas-liquid mixture is prevented from causing a large impact on the inner wall of the tower body of the regeneration tower 2, thereby ensuring the service life of the regeneration tower 2.

[0040] In some embodiments, the spacing between two adjacent first liquid distribution plates 431 gradually increases in a direction away from the liquid distribution member 42. Specifically, as shown in Figure 3 the spacing between two adjacent first liquid distribution plates 431 gradually increases from right to left (in other words, the cross-sectional area of the channel 44 formed by two adjacent first liquid distribution plates 431 gradually increases from right to left), so that the gas pressure of the gas-liquid mixture passing through the channel 44 gradually decreases, thereby reducing the impact of the gas-liquid mixture on the regeneration tower 2.

[0041] In some embodiments, the spacing between two adjacent second liquid distribution plates 432 gradually increases in a direction away from the liquid distribution member 42. Specifically, as shown in Figure 3 the spacing between two adjacent second liquid distribution plates 432 gradually increases from left to right (in other words, the cross-sectional area of the channel 44 formed by two adjacent first liquid distribution plates 431 gradually increases from left to right), so that the gas pressure of the gas-liquid mixture passing through the channel 44 gradually decreases, thereby reducing the impact of the gas-liquid mixture on the regeneration tower 2.

[0042] In some embodiments, the spacing between two adjacent first liquid distribution plates 431 gradually increases from top to bottom, and the spacing between two adjacent second liquid distribution plates 432 gradually increases from top to bottom. In other words, the cross-sectional area of the channel 44 formed by two adjacent first liquid distribution plates 431 gradually decreases from top to bottom, and the cross-sectional area of the channel 44 formed by two adjacent second liquid distribution plates 432 gradually decreases from top to bottom, so that the upward impact force of the gas-liquid mixture can be reduced, thereby ensuring the service life of the regeneration tower 2.

[0043] In some embodiments, the first inlets 21 are multiple, the multiple first inlets 21 are arranged at intervals along the circumference of the regeneration tower 2, the liquid distribution assemblies 4 are multiple, the multiple liquid distribution assemblies 4 are arranged one by one in the first inlets 21, and the reboiler 3 is communicated with the multiple first inlets 21. Thus, the gas-liquid mixture flowing out of the reboiler 3 can flow into the regeneration tower 2 uniformly from multiple positions, further improving the uniformity of the distribution of the gas-liquid mixture, thereby improving the regeneration efficiency.

[0044] In some embodiments, the regeneration system further comprises a delivery pipe 5, the delivery pipe 5 is arranged around the outer circumferential surface of the regeneration tower 2, one end of the delivery pipe 5 is communicated with the reboiler 3, so that the lean liquid in the reboiler 3 flows into the delivery pipe 5, and the delivery pipe 5 is provided with multiple delivery ports, the multiple delivery ports are communicated with the multiple first inlets 21 one by one. Specifically, as shown in Figure 2 the delivery pipe 5 can be annular and arranged around the outer circumferential surface of the regeneration tower 2, the delivery pipe 5 is provided with multiple delivery ports, the number of the multiple delivery ports is equal to the number of the multiple first inlets 21, each delivery port is communicated with a first inlet 21, and the inlet of the delivery pipe 5 is communicated with the outlet of the reboiler 3, so that the gas-liquid mixture generated by the reboiler 3 can be delivered into the regeneration tower 2 through the delivery pipe 5.

[0045] The flue gas treatment system 100 according to the embodiments of the present application comprises an absorption tower 1 and a regeneration system.

[0046] The absorption tower 1 is provided with lean liquid and is adapted to be communicated with flue gas, so that the lean liquid absorbs carbon dioxide in the flue gas to convert the lean liquid into rich liquid. Thus, the carbon dioxide in the flue gas is absorbed by the absorption tower 1, and the lean liquid is converted into rich liquid after absorbing the carbon dioxide.

[0047] The regeneration system is the regeneration system of any one of the above embodiments, one end of the regeneration tower 2 of the regeneration system is communicated with one end of the absorption tower 1, so that the rich liquid in the absorption tower 1 flows into the regeneration tower 2 to decompose the rich liquid into lean liquid, and the other end of the regeneration tower 2 is communicated with the other end of the absorption tower 1, so that the lean liquid in the regeneration tower 2 flows into the absorption tower 1. Specifically, as shown in Figure 1 the outlet of the absorption tower 1 is communicated with the second inlet of the regeneration tower 2, the rich liquid in the absorption tower 1 flows into the regeneration tower 2 to decompose the rich liquid into lean liquid, and the outlet of the absorption tower 1 is communicated with the second inlet of the regeneration tower 2 to flow the lean liquid in the regeneration tower 2 into the absorption tower 1.

[0048] The flue gas treatment system 100 according to the embodiments of the present application has the advantages of simple structure, low cost, high conversion efficiency of lean liquid and rich liquid, etc.

[0049] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Therefore, the features defined with "first", "second", etc. 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 and limited.

[0051] 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; it can be the internal communication or interaction relationship of 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.

[0052] 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.

[0053] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0054] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present disclosure, and the ordinary skilled person in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A regeneration system characterized by, The application relates to a regenerator, comprising: a regenerator having a chamber, a first inlet and a first outlet, both of which are communicated with the chamber, and the regenerator is adapted to be connected with rich liquid; a reboiler, one end of which is communicated with the first outlet of the regenerator, so that the rich liquid in the regenerator flows into the reboiler through the first outlet to heat the rich liquid into gas-liquid mixture through the reboiler, and the other end of the reboiler is communicated with the first inlet, so that the gas-liquid mixture in the reboiler flows into the regenerator; a liquid distribution assembly having a channel and arranged in the first inlet, the channel extends along the circumference of the regenerator, and both ends of the channel are communicated with the reboiler and the chamber respectively, so that the gas-liquid mixture in the reboiler flows into the regenerator through the channel, the liquid distribution assembly comprises a mounting plate, a liquid distribution piece arranged on the mounting plate, and a liquid distribution plate arranged on the mounting plate and located on one side of the liquid distribution piece, the liquid distribution plate is arranged in a spaced manner with the liquid distribution piece to form the channel, so that the gas flow flowing into the first inlet flows into the regenerator through the liquid distribution piece, the liquid distribution piece comprises a first plate and a second plate, both of which are vertical plates and are arranged on the mounting plate, both of which extend from the first inlet towards the interior of the regenerator, one end of the first plate and one end of the second plate are connected, and the extending directions of the first plate and the second plate intersect at an angle, the liquid distribution plate is arranged on the side of the first plate away from the second plate, and / or the liquid distribution plate is arranged on the side of the second plate away from the first plate, the liquid distribution plate comprises a plurality of first liquid distribution plates, all of which are vertical plates and are arranged on the mounting plate, all of which are arranged on the side of the first plate away from the second plate, each of the first liquid distribution plates extends from the first inlet towards the interior of the regenerator, and the extending direction of the first liquid distribution plate intersects with the radial direction of the regenerator at an angle, the first liquid distribution plates are arranged in a spaced manner, and adjacent two first liquid distribution plates define the channel; and / or a plurality of second liquid distribution plates, all of which are vertical plates and are arranged on the mounting plate, all of which are arranged on the side of the second plate away from the first plate, each of the second liquid distribution plates extends from the first inlet towards the interior of the regenerator, and the extending direction of the second liquid distribution plate intersects with the radial direction of the regenerator at an angle, the second liquid distribution plates are arranged in a spaced manner, and adjacent two second liquid distribution plates define the channel, the spacing between adjacent two first liquid distribution plates gradually increases from top to bottom, and / or the spacing between adjacent two second liquid distribution plates gradually increases from top to bottom.

2. The regeneration system of claim 1, wherein, At least part of the first liquid distribution plate extends along the circumference of the regenerator and is inclined towards the interior of the regenerator, And / or, at least part of the second liquid distribution plate extends along the circumference of the regenerator and is inclined towards the interior of the regenerator.

3. The regeneration system of claim 1, wherein, The distance between two adjacent first liquid distribution plates gradually increases in a direction away from the liquid distribution member, And / or, the distance between two adjacent second liquid distribution plates gradually increases in a direction away from the liquid distribution member.

4. The regeneration system of claim 1, wherein, The first inlets are multiple, the multiple first inlets are arranged at intervals along the circumference of the regenerator, the liquid distribution assemblies are multiple, the multiple liquid distribution assemblies are arranged one by one in the first inlets, and the reboiler is in communication with the multiple first inlets.

5. The regeneration system of claim 4, wherein, Further comprising a delivery pipe, which is arranged around the outer circumferential surface of the regenerator, and one end of the delivery pipe is in communication with the reboiler, so that the gas-liquid mixture in the reboiler flows into the delivery pipe, and multiple delivery ports are arranged on the delivery pipe, and the multiple delivery ports are in one-to-one correspondence with the multiple first inlets.

6. A flue gas treatment system characterized by, Comprise: An absorption tower, which is provided with lean liquid and is suitable for the passage of flue gas, so that the lean liquid absorbs carbon dioxide in the flue gas to convert the lean liquid into rich liquid; The regeneration system is the regeneration system of any one of claims 1-5, one end of the regeneration tower of the regeneration system is in communication with one end of the absorption tower, so that the rich liquid in the absorption tower flows into the regeneration tower to decompose the rich liquid into lean liquid, and the other end of the regeneration tower is in communication with the other end of the absorption tower, so that the lean liquid in the regeneration tower flows into the absorption tower.

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