Filler for flue gas carbon dioxide trapping absorption tower

Abstract

The utility model relates to the technical field of carbon dioxide capture, in particular to a filler for a flue gas carbon dioxide capture absorption tower, which comprises a vibration unit, an ultrasonic generator and a vibration rod, the ultrasonic generator is connected with the vibration unit through the vibration rod and used for controlling the vibration unit to vibrate. According to the filler for the flue gas carbon dioxide capture absorption tower, the gas-liquid contact area can be increased by designing the vibration unit, so that the gas-liquid mass transfer efficiency is improved, an ultrasonic generator and a vibration rod are further arranged in the vibration unit to enable the vibration unit to vibrate, the gas-liquid mass transfer efficiency can be further effectively improved, and the gas-liquid mass transfer efficiency is improved. Therefore, the carbon dioxide trapping efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide capture, in particular to a filler used in a flue gas carbon dioxide capture absorption tower. Background Art

[0002] With the development of economy and the continuous improvement of industrialization level, the consumption of fossil energy has increased rapidly, which has led to the large-scale emission of greenhouse gases represented by carbon dioxide, thus causing global warming. 2 The largest contributor, accounting for about 60% of all greenhouse gases, is CO 2 Capture, utilization and storage (CCUS) is the current mainstream technology route to achieve CO 2 The most effective and economically feasible way to reduce emissions, among which post-combustion capture does not require the modification of existing thermal power plants, is a current research hotspot. Chemical absorption is the most mature process and has the greatest application potential in post-combustion capture.

[0003] The current CO 2 In capture projects, packed towers are often used as absorption towers. They are composed of packing, tower internals and a cylinder. The packing provides a channel for gas-liquid flow and a surface for two-phase heat and mass transfer in the tower. It directly determines the quality of gas-liquid flow and heat and mass transfer. It is the core component of the absorption tower. Existing bulk packing is generally in a static state. Once installed, it is fixed in the absorption tower, which is prone to form wall flow and channel flow, thereby affecting the performance of the packing and causing a decrease in the absorption rate of carbon dioxide.

[0004] Therefore, there is an urgent need for a filler for a flue gas carbon dioxide capture absorption tower to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing bulk fillers are generally in a static state and are fixed in the absorption tower once installed, which easily forms wall flow and channel flow, thereby affecting the performance of the fillers and causing a decrease in the absorption rate of carbon dioxide. A filler for a flue gas carbon dioxide capture absorption tower is provided.

[0006] The technical solution of the utility model is as follows:

[0007] A filler for a flue gas carbon dioxide capture absorption tower comprises a vibration unit and an ultrasonic generator and a vibration rod arranged inside the vibration unit. The ultrasonic generator is connected to the vibration unit through the vibration rod and is used to control the vibration of the vibration unit.

[0008] Preferably, the vibration unit includes two circular rings arranged at an interval up and down. The two circular rings are connected by a plurality of support rods. Each circular ring includes a plurality of circles arranged coaxially from inside to outside. The plurality of circles are connected by a plurality of fixed rods arranged at intervals and extending outward from the center of the circle. The center end of the fixed rod is connected to the vibration rod.

[0009] Preferably, the interval between two adjacent circles is 1 mm - 5 mm.

[0010] Preferably, the support rods are arranged on the outermost circle of the circular ring, and the ratio of the diameter of the outermost circle to the height of the support rod is 1:(1.3 - 1.6).

[0011] Preferably, the circle has a micro-structure, the micro-structure is triangular notches arranged at a preset interval, and the angle a of the notch is 15° - 60°.

[0012] Preferably, the triangular notches between two adjacent circles are staggered and arranged oppositely.

[0013] Preferably, the circle, the support rod and the fixed rod are all made of stainless steel.

[0014] Preferably, the ultrasonic generator is arranged at the geometric center inside the vibration unit.

[0015] Preferably, the ultrasonic generator is powered by a wired or wireless power supply unit.

[0016] Preferably, the wireless power supply unit uses a wireless charging coil for energy supply.

[0017] According to the above technical solution, based on the packing for the flue gas carbon dioxide capture absorption tower, by designing the vibration unit, the gas-liquid contact area can be increased, thereby improving the efficiency of gas-liquid mass transfer. Further, by arranging an ultrasonic generator and a vibration rod inside the vibration unit to make it vibrate, the efficiency of gas-liquid mass transfer can be further effectively improved, thereby improving the capture efficiency of carbon dioxide. At the same time, the size of the absorption tower, the amount of packing material used, the consumption of the absorption liquid can be reduced, the equipment investment of the whole system can be reduced, and the operation cost can be reduced. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the packing for the flue gas carbon dioxide capture absorption tower;

[0019] Figure 2 is a schematic cross-sectional structure diagram of the circle of the circular ring of the vibration unit of the packing for the flue gas carbon dioxide capture absorption tower.

[0020] Description of the Reference Numerals

[0021] 1. Ultrasonic generator; 2. Vibration unit; 21. Ring; 211. Circle; 22. Support rod; 23. Fixed rod; 3. Vibration rod; 4. Power supply unit. Detailed implementation manners

[0022] The following provides a detailed description of the specific implementation manners of the embodiments of the present utility model. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the embodiments of the present utility model, and are not used to limit the embodiments of the present utility model.

[0023] In the description of the present application, the term "comprising" and any of its deformations mean non-exclusive inclusion, and there may be or add one or more other features, units, components and / or their combinations. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, or the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0024] The present utility model provides a filler for a flue gas carbon dioxide capture absorption tower, as Figure 1-2 shown. The filler for the flue gas carbon dioxide capture absorption tower includes a vibration unit 2, an ultrasonic generator 1 and a vibration rod 3 disposed inside the vibration unit 2. The ultrasonic generator 1 is connected to the vibration unit 2 through the vibration rod 3 and is used to control the vibration of the vibration unit 2.

[0025] According to the above technical solution, based on the filler for the flue gas carbon dioxide capture absorption tower, by designing the vibration unit, the gas-liquid contact area can be increased, thereby improving the efficiency of gas-liquid mass transfer. Further, by arranging an ultrasonic generator and a vibration rod inside the vibration unit to make it vibrate, the efficiency of gas-liquid mass transfer can be further effectively improved, thereby improving the capture efficiency of carbon dioxide. At the same time, the size of the absorption tower, the consumption of the filler material, the consumption of the absorption liquid can be reduced, the equipment investment of the whole system can be reduced, and the operation cost can be reduced.

[0026] In the packing for a flue gas carbon dioxide capture absorption tower according to the present utility model, preferably, the vibration unit 2 includes two circular rings 21 arranged at intervals up and down. The two circular rings 21 are connected by a plurality of support rods 22. The circular ring 21 includes a plurality of circles 211 arranged coaxially from the inside to the outside in sequence. The plurality of circles 211 are connected by a plurality of fixing rods 23 arranged at intervals and extending outward from the center of the circle. The center end of the fixing rod 23 is connected to the vibration rod 3, thereby effectively increasing the gas-liquid contact area and further effectively improving the carbon dioxide capture efficiency. Specifically, the number of the circles 211, the number of the fixing rods 23 and the number of the support rods 22 are all set according to actual needs. Preferably, as Figure 1 shown in the setting. In a preferred embodiment, the circles 211, the support rods 22 and the fixing rods 23 are all made of stainless steel.

[0027] In the packing for a flue gas carbon dioxide capture absorption tower according to the present utility model, preferably, the interval between two adjacent circles 211 is 1 mm - 5 mm, preferably 1 mm - 4 mm, and most preferably 2 mm, thereby further increasing the gas-liquid contact area in the packing and further effectively improving the carbon dioxide capture efficiency.

[0028] In the packing for a flue gas carbon dioxide capture absorption tower according to the present utility model, preferably, the support rods 22 are arranged on the outermost circle 211 of the circular ring 21, and the ratio of the diameter of the outermost circle 211 to the height of the support rods 22 is 1:(1.3 - 1.6), preferably 1:(1.4 - 1.6), and most preferably 1:1.5, thereby further increasing the gas-liquid contact area in the packing and further effectively improving the carbon dioxide capture efficiency.

[0029] In the packing for a flue gas carbon dioxide capture absorption tower according to the present utility model, preferably, the circle 211 has a micro-structure. The micro-structure is triangular incisions arranged at a preset interval, and the cross-sectional angle a of the triangular incisions is 15° - 60°, preferably 15° - 45°, and most preferably 30° - 45°, thereby further increasing the gas-liquid contact area in the packing and further effectively improving the carbon dioxide capture efficiency.

[0030] Further preferably, as Figure 2 shown, the triangular incisions between two adjacent circles 211 are staggered and arranged oppositely, thereby further increasing the gas-liquid contact area in the packing and further effectively improving the carbon dioxide capture efficiency.

[0031] In the packing for a flue gas carbon dioxide capture absorption tower according to the present utility model, preferably, as Figure 1As shown, the ultrasonic generator 1 is disposed at the geometric center inside the vibration unit 2, so that the vibration generated by the ultrasonic generator 1 can be better transmitted to the vibration unit 2 through the vibration rod 3 to cause resonance, thereby effectively improving the efficiency of gas-liquid mass transfer. Among them, the principle of improving the efficiency of gas-liquid mass transfer by vibration is that the liquid film attached to the packing will form a small-amplitude irregular water-pattern liquid film under the action of vibration. This water-pattern liquid film has a larger contact area with gas compared to the original liquid film, so that gas-liquid mass transfer is more sufficient. At the same time, vibration will cause micro-turbulence, further enhancing gas-liquid mass transfer. Therefore, it has a higher absorption efficiency and is conducive to more fully and quickly absorbing carbon dioxide gas in flue gas.

[0032] In a specific embodiment, the ultrasonic generator 1 is powered by a wired or wireless power supply unit 4, preferably by a wireless power supply unit powered by a wireless charging coil, so as to reduce the structural complexity.

[0033] The present invention will be described in detail below through embodiments, but the protection scope of the present invention is not limited thereto.

[0034] Embodiment 1

[0035] Adopt the packing for a flue gas carbon dioxide capture absorption tower as shown in Figure 1 and 2 to capture carbon dioxide in the absorption tower. Specifically, the packing for the flue gas carbon dioxide capture absorption tower includes a vibration unit 2, an ultrasonic generator 1 and a vibration rod 3 disposed inside the vibration unit 2. The ultrasonic generator 1 is connected to the vibration unit 2 through the vibration rod 3 and is used to control the vibration of the vibration unit 2;

[0036] The ultrasonic generator 1 is disposed at the geometric center inside the vibration unit 2. The ultrasonic generator 1 is powered by a wireless power supply unit, and the wireless power supply unit is powered by a wireless charging coil.

[0037] During actual application, while introducing the absorbent and flue gas into the absorption tower, the ultrasonic generator 1 is turned on to cause the vibration unit 2 to resonate.

[0038] It is detected that when the packing for the flue gas carbon dioxide capture absorption tower of the present invention is used in actual application, the mass transfer efficiency of the absorbent and the flue gas can be effectively improved, thereby effectively improving the capture efficiency of carbon dioxide in the flue gas.

[0039] Embodiment 2

[0040] Implemented with reference to Embodiment 1, except that the vibration unit 2 includes two circular rings 21 arranged at intervals up and down, and the two circular rings 21 are connected by a plurality of support rods 22. The circular ring 21 includes a plurality of circles 211 arranged coaxially from inside to outside in sequence. The plurality of circles 211 are connected by a plurality of fixed rods 23 arranged at intervals and extending outward from the center of the circle. The center end of the fixed rod 23 is connected to the vibration rod 3; the circles 211, the support rods 22 and the fixed rods 23 are all made of stainless steel.

[0041] After testing, compared with the solution in Embodiment 1, the packing for the flue gas carbon dioxide capture absorption tower of the present utility model can further effectively improve the capture efficiency of carbon dioxide in the flue gas by increasing the contact area of gas-liquid mass transfer.

[0042] Embodiment 3

[0043] Implemented with reference to Embodiment 2, except that the interval between two adjacent circles 211 is 2 mm, the support rod 22 is arranged on the outermost circle 211 of the circular ring 21, and the ratio of the diameter of the outermost circle 211 to the height of the support rod 22 is 1:1.5.

[0044] After testing, compared with the solution in Embodiment 2, the packing for the flue gas carbon dioxide capture absorption tower of the present utility model can further increase the contact area of gas-liquid mass transfer, thereby effectively improving the capture efficiency of carbon dioxide in the flue gas.

[0045] Embodiment 4

[0046] Implemented with reference to Embodiment 3, except that the circle 211 has a micro-structure, the micro-structure is triangular incisions arranged at a preset interval, and the cross-sectional angle a of the triangular incision is 45°; the triangular incisions between two adjacent circles 211 are staggered and arranged oppositely.

[0047] After testing, compared with the solution in Embodiment 3, the packing for the flue gas carbon dioxide capture absorption tower of the present utility model can further increase the contact area of gas-liquid mass transfer, thereby effectively improving the capture efficiency of carbon dioxide in the flue gas.

[0048] The packing for the flue gas carbon dioxide capture absorption tower provided by the present utility model can increase the gas-liquid contact area by designing the vibration unit, thereby improving the efficiency of gas-liquid mass transfer. Further, by arranging an ultrasonic generator and a vibration rod inside the vibration unit to make it vibrate, the efficiency of gas-liquid mass transfer can be further effectively improved, thereby improving the capture efficiency of carbon dioxide. At the same time, the size of the absorption tower, the amount of packing material used, the consumption of the absorption liquid can be reduced, the equipment investment of the whole system can be reduced, and the operation cost can be reduced.

[0049] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model. To avoid unnecessary repetition, the present utility model will not separately describe various possible combinations. However, these simple modifications and combinations should also be regarded as the content disclosed by the present utility model and all fall within the protection scope of the present utility model.

Claims

1. A packing for a flue gas carbon dioxide capture absorption tower, characterized in that: The filler for a flue gas carbon dioxide capture absorption tower comprises a vibration unit (2) and an ultrasonic generator (1) and a vibration rod (3) arranged inside the vibration unit (2); the ultrasonic generator (1) is connected to the vibration unit (2) via the vibration rod (3) and is used to control the vibration of the vibration unit (2).

2. The packing for flue gas carbon dioxide capture absorption tower according to claim 1, characterized in that: The vibration unit (2) comprises two circular rings (21) arranged at intervals in an upper and lower direction, the two circular rings (21) are connected via a plurality of support rods (22), the circular ring (21) comprises a plurality of circles (211) arranged coaxially in sequence from the inside to the outside, the plurality of circles (211) are connected via a plurality of fixed rods (23) arranged at intervals and extending outward from the center of the circle, and the center end of the fixed rod (23) is connected to the vibration rod (3).

3. The packing for flue gas carbon dioxide capture absorption tower according to claim 2, characterized in that: The interval between two adjacent circles (211) is 1mm-5mm.

4. The packing for flue gas carbon dioxide capture absorption tower according to claim 2, characterized in that: The support rod (22) is arranged on the outermost circle (211) of the annular ring (21), and the ratio of the diameter of the outermost circle (211) to the height of the support rod (22) is 1:(1.3-1.6).

5. The packing for flue gas carbon dioxide capture absorption tower according to claim 2, characterized in that: The circle (211) has a microstructure, which is a triangular cutout arranged at a preset interval, and the cross-sectional angle a of the triangular cutout is 15°-60°.

6. The packing for flue gas carbon dioxide capture absorption tower according to claim 5, characterized in that: The triangular cutouts between two adjacent circles (211) are staggered and arranged opposite to each other.

7. The packing for flue gas carbon dioxide capture absorption tower according to claim 2, characterized in that: The circle (211), the support rod (22) and the fixing rod (23) are all made of stainless steel.

8. The packing for flue gas carbon dioxide capture absorption tower according to claim 1, characterized in that: The ultrasonic generator (1) is arranged at the geometric center inside the vibration unit (2).

9. The packing for flue gas carbon dioxide capture absorption tower according to claim 8, characterized in that: The ultrasonic generator (1) is powered by a wired or wireless power supply unit (4).

10. The packing for flue gas carbon dioxide capture absorption tower according to claim 9, characterized in that: The wireless power supply unit adopts a wireless charging coil to supply energy.

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