Absorption tower structure and flue gas trapping system with same

Abstract

The invention provides an absorption tower structure and a flue gas trapping system with the same, the absorption tower structure comprises: a tower body, the tower body comprises a plurality of reaction tower sections, the plurality of reaction tower sections are sequentially connected along a broken line type track or a wave type track, and the bottom of at least one of the plurality of reaction tower sections is provided with a gas inlet channel; at least part of the spraying assembly is arranged at the top of each reaction tower section, and the spraying assembly is used for spraying reaction liquid into each reaction tower section; wherein the tower body further comprises a supporting tower section which is arranged at the bottom end of the reaction tower section and communicated with the reaction tower section, and the supporting tower section is used for supporting the reaction tower section. According to the invention, the problems of complex support and inconvenient maintenance caused by high height of the absorption tower structure in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of absorption tower structure design, and in particular to an absorption tower structure and a flue gas capture system having the same. Background Art

[0002] In industrial flue gas treatment, towers are common equipment used to achieve gas-liquid contact and mass transfer processes, and are divided into three categories according to the gas-liquid contact form. The first category is plate towers, bubbling absorption towers, and stirred bubbling absorption towers in which the gas is dispersed in the liquid phase in the form of bubbles; the second category is ejectors and spray towers in which the liquid is dispersed in the gas phase in the form of droplets; the third category is packed absorption towers and falling film absorption towers in which the liquid contacts the gas phase in a film-like motion. The flow of gas and liquid in the tower can be countercurrent or cocurrent. Countercurrent operation is usually adopted, and the absorbent is added from the top of the tower to flow from top to bottom, and contacts with the gas flowing from bottom to top. The liquid that absorbs the absorbent is discharged from the bottom of the tower, and the purified gas is discharged from the top of the tower. Therefore, fully mixing the flue gas and liquid in the absorption tower can promote the filtration of the flue gas and improve the purification effect of the absorption tower.

[0003] Most of the existing absorption towers are columnar structures with high height and large size. They usually require complex supporting structures to support the tower body to ensure the stability of the absorption tower, and the maintenance of the absorption tower is extremely inconvenient. Summary of the invention

[0004] The main purpose of the present invention is to provide an absorption tower structure and a flue gas capture system having the same, so as to solve the problem that the absorption tower structure in the prior art has complex support and inconvenient maintenance due to its high height.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an absorption tower structure, comprising: a tower body, the tower body comprising a plurality of reaction tower sections, the plurality of reaction tower sections are sequentially connected along a zigzag trajectory or a wavy trajectory, and an air inlet channel is arranged at the bottom of at least one of the plurality of reaction tower sections; a spray assembly, at least part of which is arranged at the top of each reaction tower section, for spraying reaction liquid into each reaction tower section; wherein the tower body further comprises: a supporting tower section, which is arranged at the bottom end of the reaction tower section and is connected to the reaction tower section, and the supporting tower section is used to support the reaction tower section.

[0006] Furthermore, the absorption tower structure also includes: a confluence chamber, which is arranged in the supporting tower section and is used to collect waste liquid after the spray reaction liquid reacts with the gas.

[0007] Furthermore, there are multiple supporting tower sections, including an intermediate supporting tower section and an end supporting tower section; wherein the bottoms of two adjacent reaction tower sections are connected through the intermediate supporting tower section, and the end supporting tower section is arranged at the end of the tower body.

[0008] Furthermore, an air inlet channel is respectively arranged at the bottom of each reaction tower section, and the absorption tower structure also includes: a guide plate, which is arranged on the inner wall of the reaction tower section, and the guide plate is connected below the air outlet of the air inlet channel, and the guide plate is inclined toward the direction close to the supporting tower section.

[0009] Furthermore, the tower body also includes: a connecting tower section, which is arranged at the top of the reaction tower section, and two adjacent reaction tower sections are connected by the connecting tower section, and at least part of the spray assembly is arranged in the connecting tower section; the connecting tower section extends in a horizontal direction, or the connecting tower section extends along an arc trajectory.

[0010] Furthermore, the spray assembly includes: a liquid supply pipe, which is arranged in the connecting tower section and is arranged along the extension direction of the connecting tower section; the middle part of the liquid supply pipe protrudes toward the bottom wall surface of the connecting tower section; a nozzle, which is arranged on the liquid supply pipe, and there are multiple nozzles, and the multiple nozzles are arranged at intervals along the extension direction of the liquid supply pipe.

[0011] Furthermore, the spray assembly includes: a first spray group, which is arranged at the top of the reaction tower section, and the first spray group sprays the reaction liquid from the top of the reaction tower section into two adjacent reaction tower sections; a second spray group, which is arranged on the inner wall of the reaction tower section, and the second spray group sprays the reaction liquid from the inner wall of the reaction tower section into the reaction tower section.

[0012] Furthermore, there are multiple second spray groups, and the multiple second spray groups are arranged in one-to-one correspondence with the multiple reaction tower sections.

[0013] Furthermore, the maximum height of the tower body is 2m to 3m.

[0014] According to another aspect of the present invention, a flue gas capture system is provided, comprising an absorption tower structure, wherein the absorption tower structure is the absorption tower structure described above.

[0015] According to the technical solution of the present invention, the absorption tower structure includes a tower body and a spray assembly, wherein the tower body includes multiple reaction tower sections, which are sequentially connected along a zigzag trajectory or a wavy trajectory, and an air inlet channel is arranged at the bottom of at least one of the multiple reaction tower sections; at least part of the spray assembly is arranged at the top of each reaction tower section, and is used to spray the reaction liquid into each reaction tower section; wherein the tower body also includes: a support tower section, which is arranged at the bottom of the reaction tower section and is connected to the reaction tower section, and the support tower section is used to support the reaction tower section. The tower body includes multiple reaction tower sections, which are sequentially connected along a zigzag trajectory or a wavy trajectory, so that on the basis of having sufficient reaction space in the tower body, the height of the tower body is reduced and the length of the tower body is increased. In addition, by arranging the support tower section, the support tower section not only plays a supporting role for the reaction tower section, but also can use the support tower section to collect the reaction waste liquid in the reaction tower section, so that there is no need for a complex support structure to support the tower body, and it is also convenient for operators to inspect and maintain the absorption tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of an absorption tower structure according to the present invention is shown;

[0018] Figure 2 A schematic diagram of the installation of a spray assembly of an absorption tower structure according to the present invention is shown;

[0019] Figure 3 A structural schematic diagram of another embodiment of the absorption tower structure according to the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 1. Tower body; 10. Reaction tower section; 101. Air inlet channel; 2. Spray assembly; 11. Support tower section; 110. Middle support tower section; 111. End support tower section; 3. Confluence chamber; 12. Connecting tower section; 20. Liquid supply pipe; 21. Spray head; 22. First spray group; 23. Second spray group; 4. Guide plate; 5. Air outlet channel. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] As mentioned in the background technology, most absorption tower bodies in the prior art are relatively high and have long cantilevers, requiring complex support structures, and are inconvenient for operators to inspect and maintain. Therefore, in order to solve the above technical problems, the present invention provides an absorption tower structure, in which a tower body 1 includes multiple reaction tower sections 10, and the multiple reaction tower sections 10 are connected in sequence along a zigzag trajectory or a wavy trajectory. In this way, on the basis of ensuring that there is sufficient reaction space in the absorption tower, the length of the tower body 1 is increased in the lateral direction of the tower body 1, so that the height of the tower body 1 can be reduced. In this way, each section of the reaction tower section 10 is inclined at a predetermined angle, and an air inlet channel 101 is provided at the bottom of at least one reaction tower section 10 of the multiple reaction tower sections 10, and flue gas containing carbon dioxide is introduced into each section of the reaction tower section 10 through the air inlet channel 101. The spray assembly 2 is arranged at the top of the reaction tower section 10, and is in contact with the flue gas. The reaction liquid sprayed by the spray assembly 2 reacts with the carbon dioxide in the flue gas through countercurrent contact. Since the height of each section of the reaction tower section 10 is reduced, in order to meet the flue gas discharge volume, the flue gas is distributed in each reaction tower section 10 to react with the spray liquid. The tower body 1 also includes a supporting tower section 11, which supports the reaction tower section 10. The supporting tower section 11 is arranged at the bottom of the reaction tower section 10 and is connected to the reaction tower section 10. The waste liquid generated after the flue gas and the reaction liquid undergo a chemical reaction can automatically converge into the supporting tower section 11. This arrangement not only reduces the height of the absorption tower, but also eliminates the need for a complex supporting structure, and facilitates the maintenance of the tower body 1 by the staff during the inspection and maintenance process.

[0024] Please refer to Figures 1 to 3 The present invention provides an absorption tower structure, comprising: a tower body 1, the tower body 1 comprising a plurality of reaction tower sections 10, the plurality of reaction tower sections 10 being connected in sequence along a zigzag trajectory or a wavy trajectory, and an air inlet channel 101 being arranged at the bottom of at least one of the plurality of reaction tower sections 10; a spray assembly 2, at least part of which is arranged at the top of each reaction tower section 10, for spraying a reaction liquid into each reaction tower section 10; wherein the tower body 1 further comprises: a supporting tower section 11, which is arranged at the bottom end of the reaction tower section 10 and is connected to the reaction tower section 10, and the supporting tower section 11 is used to support the reaction tower section 10.

[0025] The absorption tower structure provided by the present invention includes a tower body 1 and a spray assembly 2, the tower body 1 includes a plurality of reaction tower sections 10, the plurality of reaction tower sections 10 are sequentially connected along a zigzag trajectory or a wavy trajectory, and an air inlet channel 101 is provided at the bottom of at least one of the plurality of reaction tower sections 10; at least part of the spray assembly 2 is arranged at the top of each reaction tower section 10, for spraying reaction liquid into each reaction tower section 10; wherein the tower body 1 also includes: a support tower section 11, which is arranged at the bottom end of the reaction tower section 10 and is connected to the reaction tower section 10, and the support tower section 11 is used to support the reaction tower section 10. The tower body 1 includes a plurality of reaction tower sections 10, and the plurality of reaction tower sections 10 are connected in sequence along a zigzag trajectory or a wavy trajectory. In this way, on the basis of ensuring that there is sufficient reaction space in the tower body 1, the height of the tower body 1 is reduced and the length of the tower body 1 is increased. In addition, by setting the supporting tower section 11, the supporting tower section 11 not only supports the reaction tower section 10, but also can be used to collect the reaction waste liquid in the reaction tower section 10, so that there is no need for a complex supporting structure to support the tower body 1, and it is convenient for operators to inspect and maintain the absorption tower.

[0026] Specifically, the absorption tower structure also includes: a confluence chamber 3, which is arranged in the support tower section 11 and is used to collect waste liquid after the spray reaction liquid and the gas react. The confluence chamber 3 is the inner cavity of the support tower section 11. After the reaction waste liquid is collected by the support tower section 11, a drain port is opened at the bottom of the support tower section 11 to discharge the reaction waste liquid.

[0027] In the specific implementation process, there are multiple support tower sections 11, and the multiple support tower sections 11 include an intermediate support tower section 110 and an end support tower section 111; wherein, the bottoms of two adjacent reaction tower sections 10 are connected through the intermediate support tower section 110, and the end support tower section 111 is arranged at the end of the tower body 1. Among them, the end support tower section 111 plays a supporting role for the reaction tower section 10 connected thereto, and the intermediate support tower section 110 plays a connecting and supporting role for the adjacent two-end reaction tower sections 10. During use, the reaction waste liquid in the end support tower section 111 can be directly discharged from the end support tower section 111, and the intermediate support tower section 110 needs to be connected to an external drainage pipe for discharging the reaction waste liquid. By setting the intermediate support tower section 110 and the end support tower section 111, the support stability of the reaction tower section 10 is improved, so that the entire tower body 1 has multiple support points.

[0028] In the embodiments provided in this application, Figure 1 and Figure 2As shown, the bottom of each reaction tower section 10 is respectively provided with an air inlet channel 101, and the absorption tower structure also includes: a guide plate 4, which is arranged on the inner side wall of the reaction tower section 10, and the guide plate 4 is connected below the air outlet of the air inlet channel 101, and the guide plate 4 is inclined toward the direction close to the support tower section 11. In order to prevent the flue gas from entering the reaction tower section 10 from the air inlet channel 101, part of the flue gas will enter the support tower section 11, and the guide plate 4 is arranged on the inner side wall of the reaction tower section 10 to block the flue gas. After the flue gas contacts the plate surface of the guide plate 4, the flow trajectory can be changed. At the same time, in order to prevent the guide plate 4 from blocking the reaction waste liquid, the guide plate 4 is arranged to be inclined toward the direction close to the support tower section 11, so as to guide the reaction waste liquid, and the reaction waste liquid can flow into the support tower section 11 along the guide plate 4.

[0029] Furthermore, the tower body 1 also includes: a connecting tower section 12, which is arranged at the top of the reaction tower section 10, and two adjacent reaction tower sections 10 are connected by the connecting tower section 12, and at least part of the spray assembly 2 is arranged in the connecting tower section 12; the connecting tower section 12 extends in the horizontal direction, or the connecting tower section 12 extends along an arc trajectory. The two adjacent reaction tower sections 10 are connected by the connecting tower section 12, and at least part of the spray assembly 2 is arranged in the connecting tower section 12, so that the spray assembly 2 can spray the flue gas in the two adjacent reaction tower sections 10 at the same time during operation. Specifically, each section of the connecting tower section 12 is provided with an outlet channel 5, and the flue gas after the reaction is discharged from each reaction tower section 10 through the outlet channel 5.

[0030] In order to improve the spraying effect and make the reaction liquid and the flue gas fully react, the spray assembly 2 includes: a liquid supply pipe 20, which is arranged in the connecting tower section 12, and the liquid supply pipe 20 is arranged along the extension direction of the connecting tower section 12; the middle part of the liquid supply pipe 20 protrudes toward the bottom wall surface of the connecting tower section 12; a spray head 21, which is arranged on the liquid supply pipe 20, and there are multiple spray heads 21, and the multiple spray heads 21 are arranged at intervals along the extension direction of the liquid supply pipe 20. Preferably, the liquid supply pipe 20 extends along an arc track, so that during the spraying process, each spray head 21 can spray the reaction liquid radially at different angles in the reaction tower section 10.

[0031] In one embodiment of the spray assembly 2 provided by the present invention, Figure 2As shown, the spray assembly 2 includes: a first spray group 22, which is arranged at the top of the reaction tower section 10, and the first spray group 22 sprays the reaction liquid from the top of the reaction tower section 10 into two adjacent reaction tower sections 10; a second spray group 23, which is arranged on the inner side wall of the reaction tower section 10, and the second spray group 23 sprays the reaction liquid from the inner side wall of the reaction tower section 10 into the reaction tower section 10. There are multiple second spray groups 23, and the multiple second spray groups 23 are arranged one-to-one corresponding to the multiple reaction tower sections 10. Such an arrangement can make the reaction liquid react fully with the flue gas, and because the reaction tower section 10 has a certain inclination angle, such an arrangement can also avoid the situation where part of the flue gas cannot contact the reaction liquid only through the first spray group 22.

[0032] In the specific implementation process, the maximum height of the tower body 1 is 2m to 3m. This arrangement reduces the height of the reaction tower, and within this range, it is also convenient for the staff to perform maintenance operations.

[0033] In another embodiment of the absorption tower structure provided in the present application, Figure 3 As shown, the tower body 1 extends along a wavy trajectory. This arrangement makes the tower body 1 more beautiful in appearance and avoids gas blockage in the tower body 1. In this embodiment, the tower body 1 is a cylindrical structure with an inner diameter of 0.8m to 1.5m.

[0034] In actual use, each section of the reaction tower section 10 is also provided with an absorption filler, which is located in the middle of the reaction tower section 10, and the carbon dioxide in the flue gas reacts with the reaction liquid in the absorption filler. Preferably, the angle between the extension direction of each section of the reaction tower section 10 and the horizontal support surface is 50° to 70°. Within this angle range, the flue gas in the reaction tower section 10 can fully contact with the reaction liquid during the upward flow along the extension direction of the reaction tower section 10. If the angle is too small, the reaction liquid at the top cannot be sprayed to the part of the reaction tower section 10 close to the support tower section 11. If the angle is too large, the overall height of the tower body 1 will increase under the same volume.

[0035] The present invention also provides a flue gas capture system, comprising an absorption tower structure, and the absorption tower structure is the absorption tower structure of the above embodiment.

[0036] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0037] The absorption tower structure provided by the present invention includes a tower body 1 and a spray assembly 2, the tower body 1 includes a plurality of reaction tower sections 10, the plurality of reaction tower sections 10 are sequentially connected along a zigzag trajectory or a wavy trajectory, and an air inlet channel 101 is provided at the bottom of at least one of the plurality of reaction tower sections 10; at least part of the spray assembly 2 is arranged at the top of each reaction tower section 10, for spraying reaction liquid into each reaction tower section 10; wherein the tower body 1 also includes: a support tower section 11, which is arranged at the bottom end of the reaction tower section 10 and is connected to the reaction tower section 10, and the support tower section 11 is used to support the reaction tower section 10. The tower body 1 includes a plurality of reaction tower sections 10, and the plurality of reaction tower sections 10 are connected in sequence along a zigzag trajectory or a wavy trajectory. In this way, on the basis of ensuring that there is sufficient reaction space in the tower body 1, the height of the tower body 1 is reduced and the length of the tower body 1 is increased. In addition, by setting the supporting tower section 11, the supporting tower section 11 not only supports the reaction tower section 10, but also can be used to collect the reaction waste liquid in the reaction tower section 10, so that there is no need for a complex supporting structure to support the tower body 1, and it is convenient for operators to inspect and maintain the absorption tower.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An absorption tower structure, characterized in that: include: A tower body (1), the tower body (1) comprising a plurality of reaction tower sections (10), the plurality of reaction tower sections (10) being connected in sequence along a zigzag trajectory or a wavy trajectory, and a gas inlet channel (101) being arranged at the bottom of at least one of the plurality of reaction tower sections (10); a spray assembly (2), at least a portion of which is disposed at the top of each reaction tower section (10) and is used to spray the reaction liquid into each reaction tower section (10); Wherein, the tower body (1) further comprises: A supporting tower section (11) is arranged at the bottom end of the reaction tower section (10) and is in communication with the reaction tower section (10); the supporting tower section (11) is used to support the reaction tower section (10).

2. The absorption tower structure according to claim 1, characterized in that: The absorption tower structure also includes: The confluence chamber (3) is arranged in the supporting tower section (11) and is used to collect waste liquid after the spray reaction liquid reacts with the gas.

3. The absorption tower structure according to claim 2, characterized in that: There are a plurality of support tower sections (11), and the plurality of support tower sections (11) include a middle support tower section (110) and an end support tower section (111); The bottoms of two adjacent reaction tower sections (10) are connected via the middle support tower section (110), and the end support tower section (111) is arranged at the end of the tower body (1).

4. The absorption tower structure according to claim 1, characterized in that: The bottom of each of the reaction tower sections (10) is provided with an air inlet channel (101), and the absorption tower structure further comprises: A guide plate (4) is arranged on the inner side wall of the reaction tower section (10), and the guide plate (4) is connected below the gas outlet of the gas inlet channel (101), and the guide plate (4) is inclined in a direction close to the supporting tower section (11).

5. The absorption tower structure according to claim 1, characterized in that: The tower body (1) further comprises: A connecting tower section (12) is arranged at the top of the reaction tower section (10), two adjacent reaction tower sections (10) are connected via the connecting tower section (12), and at least a portion of the spray assembly (2) is arranged in the connecting tower section (12); The connecting tower section (12) extends in a horizontal direction, or the connecting tower section (12) extends along an arc track.

6. The absorption tower structure according to claim 5, characterized in that: The spray assembly (2) comprises: A liquid supply pipe (20) is arranged in the connecting tower section (12), and the liquid supply pipe (20) is arranged along the extending direction of the connecting tower section (12); the middle part of the liquid supply pipe (20) protrudes toward the bottom wall surface of the connecting tower section (12); A nozzle (21) is arranged on the liquid supply pipe (20), and there are a plurality of nozzles (21), which are arranged at intervals along the extension direction of the liquid supply pipe (20).

7. The absorption tower structure according to claim 1, characterized in that: The spray assembly (2) comprises: A first spray group (22) is arranged at the top of the reaction tower section (10), and the first spray group (22) sprays the reaction liquid from the top of the reaction tower section (10) into two adjacent reaction tower sections (10); The second spray group (23) is arranged on the inner wall of the reaction tower section (10), and the second spray group (23) sprays the reaction liquid from the inner wall of the reaction tower section (10) into the reaction tower section (10).

8. The absorption tower structure according to claim 7, characterized in that: The second spray groups (23) are multiple groups, and the multiple groups of the second spray groups (23) are arranged in a one-to-one correspondence with the multiple sections of the reaction tower sections (10).

9. The absorption tower structure according to claim 1, characterized in that: The maximum height of the tower body (1) is 2m to 3m.

10. A flue gas capture system, comprising an absorption tower structure, characterized in that: The absorption tower structure is the absorption tower structure according to any one of claims 1 to 9.

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