A kind of reinforced flue gas and absorbent mixing cyclone gas guide hole plate, desulfurization system

Abstract

The utility model discloses a kind of swirl gas guide hole plate of reinforced flue gas and absorbent mixing, desulfurization system, including whole board, at least four mirror image symmetry module area are divided on whole board, each module area includes multiple rotation symmetry sub-modules, each sub-module is equipped with several gas holes and each gas hole is equipped with flow guide cap, flow guide cap is implemented in the mode of changing the flow direction of ascending flue gas, the opening direction of flow guide cap of sub-module in same module area is synchronously rotated continuously following the rotation symmetry of sub-module, drain hole is also provided on whole board;The utility model eliminates tower airflow dead zone by mirror image symmetry module area, improves flue gas distribution uniformity;Sub-module and its flow guide cap in same module area are arranged to force ascending flue gas to form complete circumferential swirl, improve the mixing effect of flue gas and absorbent, cooperate with the spray gun group of upper and lower layer arrangement to reduce absorbent circulation amount while improving desulfurization efficiency, reduce cost and increase efficiency.

Description

Technical Field

[0001] This utility model relates to a swirl guide plate, and more particularly to a swirl guide plate and a desulfurization system that enhances the mixing of flue gas and absorbent. Background Technology

[0002] In wet desulfurization processes, the desulfurization tower needs to be equipped with air distribution plates or perforated trays to rectify the flue gas to be desulfurized.

[0003] Air distribution panels achieve airflow distribution through a grid structure, but they have the following drawbacks:

[0004] First, the rectification effect is significantly affected by airflow fluctuations, easily forming localized high-speed airflows or recirculation zones, leading to uneven distribution of flue gas within the tower. Second, static grilles can only cut the airflow and cannot actively change the direction of flue gas flow, resulting in low mixing efficiency of the gas-liquid two-phase flow.

[0005] The perforated tray achieves airflow distribution through its vertical through-hole structure, but it has the following drawbacks:

[0006] First, the circular orifice only provides vertical resistance to the airflow and cannot guide the flue gas to rotate or change direction. Second, when the rising flue gas comes into contact with the downward-sprayed absorbent in a counter-current flow, the lack of a forced turbulence mechanism results in slow turnover of the reaction interface, leading to low desulfurization efficiency.

[0007] The low efficiency of air distribution plates and perforated plates due to insufficient mixing of flue gas and absorbent necessitates a significant increase in absorbent circulation in actual production to increase contact between absorbent and flue gas, thereby increasing production and operating costs.

[0008] Therefore, there is an urgent need to develop a new type of rectification structure that can improve airflow direction and enhance gas-liquid mixing. Utility Model Content

[0009] To address the shortcomings of the aforementioned technologies, this invention provides a swirl-flow guide plate and desulfurization system that enhances the mixing of flue gas and absorbent.

[0010] To solve the above technical problems, the technical solution adopted by this utility model is: a swirl guide plate for enhancing the mixing of flue gas and absorbent, comprising a whole plate, the whole plate being divided into at least four mirror-symmetrical module areas, each module area including multiple rotationally symmetrical sub-modules, each sub-module having several air passage holes and each air passage hole being equipped with a guide cap, the guide cap being implemented by changing the flow direction of the rising flue gas, the opening direction of the guide cap of the sub-module within the same module area rotating synchronously and continuously with the rotational symmetry of the sub-module, and the whole plate also having drainage holes.

[0011] Furthermore, a separation gap is provided between adjacent module areas, with a width of 6-10 mm and the boundary being the edge of the outermost flow guide cap between the adjacent module areas.

[0012] Furthermore, the module area includes a first module area, a second module area, a third module area, and a fourth module area. The first module area and the second module area are mirror images of each other, the first module area and the third module area are mirror images of each other, the second module area and the fourth module area are mirror images of each other, and the third module area and the fourth module area are mirror images of each other.

[0013] Furthermore, sub-modules within the same module area are implemented in a manner that works together to form a complete circumferential flue gas swirl, with the flue gas swirl rotating clockwise or counterclockwise.

[0014] Furthermore, each submodule is divided into multiple perforated plate areas, with air passages opened within the perforated plate areas. The air passages in each row of the perforated plate area are equally spaced, and the air passages in adjacent rows are staggered.

[0015] Furthermore, the flow guide cap has a guide opening that communicates with the air passage, and the guide openings of the flow guide caps on each sub-module face the same direction.

[0016] Furthermore, the thickness of the entire board is 1.5-3mm.

[0017] A desulfurization system, comprising:

[0018] A swirl-flow guide plate to enhance the mixing of flue gas and absorbent;

[0019] Upper spray gun assembly positioned above the entire panel;

[0020] The lower spray gun assembly is located below the entire panel.

[0021] Furthermore, both the upper and lower spray gun groups employ several hollow cone nozzles, with the hollow cone nozzles of the upper spray gun group and the hollow cone nozzles of the lower spray gun group being staggered.

[0022] Furthermore, the spray angle of the hollow cone nozzle is 90°–120°.

[0023] A swirl-flow guide plate and desulfurization system that enhances the mixing of flue gas and absorbent eliminates dead zones in the airflow within the tower through mirror-symmetrical modular areas, improving the uniformity of flue gas distribution. Within the same modular area, sub-modules and their guide caps are designed to force the flue gas to rise, forming a complete circumferential swirl, which improves the mixing effect of flue gas and absorbent. Combined with the upper and lower layered spray gun groups, it improves desulfurization efficiency while reducing the amount of absorbent circulating, thus reducing costs and increasing efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the flue gas flow direction of this utility model.

[0026] Figure 3 This is an enlarged view of the module area of ​​this utility model.

[0027] Figure 4 This is an enlarged view of a sub-module of this utility model.

[0028] Figure 5 This is a schematic diagram of the perforated plate area structure of this utility model.

[0029] Figure 6 This is a schematic diagram of the actual arrangement of this utility model.

[0030] In the diagram: 1. Main plate; 2. Drainage hole; 3. First module area; 4. Second module area; 5. Third module area; 6. Fourth module area; 7. Sub-module; 8. Orifice plate area; 9. Air passage hole; 10. Flow guide cap; 11. Guide opening; 12. Upper spray gun group; 13. Lower spray gun group; 14. Separation gap; 15. Hollow cone nozzle. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-6 As shown in the figure, this embodiment relates to a swirl guide plate and desulfurization system for enhancing the mixing of flue gas and absorbent. The swirl guide plate for enhancing the mixing of flue gas and absorbent includes a whole plate 1, which is made of stainless steel and has a thickness of 1.5-3mm. In actual manufacturing, the whole plate 1 can be processed by mold integration. This embodiment does not limit the specific grade and performance of stainless steel. The whole plate 1 is also provided with drainage holes 2, which are used to drain excess absorbent from the surface of the whole plate 1 to avoid excessive mixing resistance caused by absorbent retention.

[0033] like Figure 1 As shown, the entire board 1 is divided into at least four mirror-symmetrical module areas. Specifically, the module areas include the first module area 3, the second module area 4, the third module area 5, and the fourth module area 6. Figure 1-2 As shown in the figure, the first module area 3 and the second module area 4 are mirror images of each other, the first module area 3 and the third module area 5 are mirror images of each other, the second module area 4 and the fourth module area 6 are mirror images of each other, and the third module area 5 and the fourth module area 6 are mirror images of each other.

[0034] Based on this, a separation gap 14 is provided between adjacent module areas. The width of the separation gap 14 is 6-10 mm and is bounded by the edge of the outermost flow guide cap 10 between the adjacent module areas.

[0035] like Figure 1 As shown, each module area includes multiple rotationally symmetric sub-modules 7. In this embodiment, the number of sub-modules 7 is shown as four, as follows: Figure 3 The submodule 7 shown rotates 90° counterclockwise in one rotation. Each submodule 7 has several air passages 9, and each air passage 9 is equipped with a stamped guide cap 10. The guide cap 10 is crescent-shaped and is positioned to cover the air passages 9, thereby changing the direction of the rising flue gas. Figure 3 As shown, the opening direction of the guide cap 10 of submodule 7 in the same module area follows the rotational symmetry of submodule 7 and rotates continuously and synchronously. A further effect is that submodules 7 in the same module area cooperate to form a complete circumferential flue gas vortex. The flue gas vortex is clockwise or counterclockwise to prevent the flue gas flow from colliding. The mixing effect of flue gas and absorbent is enhanced by forming a circumferential flue gas vortex.

[0036] like Figure 3 As shown, each submodule 7 is divided into multiple perforated plate areas 8. In this embodiment, each submodule 7 is divided into two perforated plate areas 8. Air passage holes 9 are opened in the perforated plate areas 8. The air passage holes 9 in each row of the perforated plate area 8 are equally spaced, and the air passage holes 9 in adjacent rows are staggered.

[0037] like Figure 4-5 As shown, the guide cap 10 has a guide opening 11 that communicates with the air passage 9. The guide openings 11 of the guide caps 10 on each sub-module 7 face the same direction, thereby ensuring that the flue gas flow direction of each sub-module 7 is consistent.

[0038] This embodiment also relates to the desulfurization system, such as Figure 6 As shown, it includes: the aforementioned swirling air guide plate for enhancing the mixing of flue gas and absorbent; an upper spray gun group 12 disposed above the whole plate 1; and a lower spray gun group 13 disposed below the whole plate 1. In other words, this embodiment sets up two spray gun groups, one upper and one lower, to spray the flue gas at the whole plate 1, effectively encapsulating the flue gas and increasing the contact time.

[0039] Based on this, both the upper spray gun group 12 and the lower spray gun group 13 adopt several hollow cone nozzles 15. The hollow cone nozzles 15 of the upper spray gun group 12 and the hollow cone nozzles 15 of the lower spray gun group 13 are staggered. The spray angle of the hollow cone nozzles 15 is 90°–120°, thereby increasing the contact area between the flue gas and the absorbent and achieving rapid reaction.

[0040] It should be noted that this embodiment does not limit the number of layers of plate 1 in the desulfurization tower; project personnel can choose according to the specific circumstances.

[0041] This application discloses a swirl guide plate and desulfurization system that enhances the mixing of flue gas and absorbent. By eliminating dead zones in the airflow within the tower through mirror-symmetrical modular areas, the uniformity of flue gas distribution is improved. Within the same modular area, sub-modules and their guide caps are designed to force the flue gas to rise and form a complete circumferential swirl, which improves the mixing effect of flue gas and absorbent. Combined with the upper and lower layered spray gun groups, the desulfurization efficiency is improved while reducing the absorbent circulation volume, thus reducing costs and increasing efficiency.

[0042] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A swirl-flow guide plate for enhancing the mixing of flue gas and absorbent, characterized in that: The plate (1) includes a whole plate (1), which is divided into at least four mirror-symmetrical module areas. Each module area includes multiple rotationally symmetrical sub-modules (7). Each sub-module (7) has several air passage holes (9) and each air passage hole (9) is equipped with a flow guide cap (10). The flow guide cap (10) is used to change the flow direction of the rising flue gas. The opening direction of the flow guide cap (10) of the sub-module (7) in the same module area rotates synchronously and continuously with the rotational symmetry of the sub-module (7). The whole plate (1) also has drainage holes (2).

2. The enhanced flue gas and absorbent mixing cyclone venturi orifice plate of claim 1, wherein: A separation gap (14) is provided between adjacent module areas. The width of the separation gap (14) is 6-10 mm and is bounded by the edge of the outermost flow guide cap (10) between the adjacent module areas.

3. The enhanced flue gas and absorbent mixing cyclone venturi orifice plate of claim 1, wherein: The module area includes a first module area (3), a second module area (4), a third module area (5), and a fourth module area (6). The first module area (3) and the second module area (4) are mirror images of each other, the first module area (3) and the third module area (5) are mirror images of each other, the second module area (4) and the fourth module area (6) are mirror images of each other, and the third module area (5) and the fourth module area (6) are mirror images of each other.

4. The enhanced flue gas and absorbent mixing cyclone venturi plate of claim 1, wherein: The sub-modules (7) within the same module area are implemented in a manner that works together to form a complete circumferential flue gas vortex, with the flue gas vortex being either clockwise or counterclockwise.

5. The enhanced flue gas and absorbent mixing cyclone venturi orifice plate of claim 1, wherein: Each submodule (7) is divided into multiple perforated plate areas (8), and air passages (9) are opened in the perforated plate area (8). The air passages (9) in each row of the perforated plate area (8) are equally spaced, and the air passages (9) in adjacent rows are staggered.

6. The swirl guide plate for enhancing the mixing of flue gas and absorbent according to claim 5, characterized in that: The flow guide cap (10) is provided with a guide opening (11) that communicates with the air passage (9), and the guide opening (11) of the flow guide cap (10) on each sub-module (7) faces the same direction.

7. The swirl guide plate for enhancing the mixing of flue gas and absorbent according to claim 1, characterized in that: The thickness of the whole plate (1) is 1.5-3mm.

8. A desulfurization system, characterized in that, include: The swirl guide plate for enhancing the mixing of flue gas and absorbent as described in any one of claims 1-7; Upper spray gun assembly (12) is set above the whole plate (1); The lower spray gun assembly (13) is located below the whole plate (1).

9. The desulfurization system according to claim 8, characterized in that: Both the upper spray gun group (12) and the lower spray gun group (13) employ several hollow cone nozzles (15), and the hollow cone nozzles (15) of the upper spray gun group (12) and the hollow cone nozzles (15) of the lower spray gun group (13) are staggered.

10. The desulfurization system according to claim 9, characterized in that: The spray angle of the hollow cone nozzle (15) is 90°–120°.

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