Synergistic device of wet desulfurization tower

Abstract

The utility model discloses a wet desulphurization tower synergy device which comprises a plurality of synergy discs, the synergy discs are evenly distributed in the circumferential direction of an absorption tower wall, the synergy discs are arranged below each spraying layer, each synergy disc comprises a bottom plate, a first side plate, a second side plate and a rib plate, the bottom plate is in a sector ring shape, holes are evenly formed in the bottom plate, and the rib plates are arranged on the first side plate and the second side plate. A first side plate is arranged on the outer edge, far away from the absorption tower wall, of the bottom plate, a second side plate is arranged on the outer edge, close to the absorption tower wall, of the bottom plate, the first side plate is higher than the second side plate, and a rib plate is arranged on the bottom plate. According to the synergistic device, the synergistic discs which are uniformly distributed in the circumferential direction are arranged, after slurry flows to the synergistic device along the wall of the absorption tower, a slurry layer is formed under the lifting of upward flue gas, the flue gas enters a liquid film layer at a high speed to stimulate a large number of liquid bubbles, and the formed liquid film can effectively enlarge the mass transfer surface area of the flue gas and the slurry.

Description

[Technical field]

[0001] The utility model relates to the technical field of desulfurization towers, in particular to the technical field of wet desulfurization tower efficiency enhancement devices. [Background technology]

[0002] Inside the traditional wet desulfurization tower, there is no efficiency enhancement device below the spray layer. A large part of the slurry sprayed from a circle of nozzles close to the absorption tower wall flows down along the tower wall without sufficient contact with the flue gas, resulting in a certain degree of waste. In recent years, with the emergence of efficiency enhancement rings, this phenomenon has improved, but the slurry gathered after passing through the efficiency enhancement ring flows down in streams, and the contact effect with the flue gas is not good, and there is still room for improvement.

[0003] The defects of the prior art are as follows:

[0004] (1) Without the efficiency enhancement ring, the slurry sprayed from the outermost nozzle of the absorption tower flows along the tower wall to the slurry pool area at the bottom of the tower without contacting the flue gas, resulting in reduced desulfurization efficiency and increased energy consumption. In addition, due to the low coverage rate of the slurry sprayed from the outermost nozzle, it is easy to cause flue gas short circuit;

[0005] (2) After the enhancement ring is added, the wall flow slurry can be gathered, but after gathering, it flows down in strands. The contact time between the slurry and the flue gas is very short, and the desulfurization and dust removal effect of this part of the slurry is limited. [Utility Model Content]

[0006] The purpose of the utility model is to solve the problems in the prior art and to provide a wet desulfurization tower efficiency enhancement device that can solve the above problems.

[0007] To achieve the above-mentioned purpose, the utility model proposes a wet desulfurization tower efficiency enhancement device, including a plurality of efficiency enhancement disks, which are evenly distributed in the circumferential direction of the absorption tower wall, and are arranged below each spray layer. The efficiency enhancement disks include a bottom plate, a first side plate, a second side plate and a rib plate. The bottom plate is fan-shaped, and holes are evenly opened on the bottom plate. The bottom plate is provided with a first side plate away from the outer edge of the absorption tower wall, and the bottom plate is provided with a second side plate close to the outer edge of the absorption tower wall. The first side plate is arranged higher than the second side plate, and rib plates are provided on the bottom plate.

[0008] The first side plate and the second side plate are respectively fixed to the front and rear sides of the bottom plate, which can increase the strength of the bottom plate. In addition, the first side plate can prevent the slurry falling into the efficiency enhancement disk from flowing down from the side, and instead fall from the bottom of the efficiency enhancement disk to have a more complete contact with the flue gas.

[0009] Preferably, the end of the first side plate is provided with an inner flange facing the absorption tower wall.

[0010] Preferably, the bottom edge of the rib is connected to the middle of the bottom plate, one side of the rib is connected to the first side plate, and the other side is connected to the second side plate, and the top of the rib is provided with a bent edge, which is connected to the inner turn-down edge.

[0011] Preferably, a support is provided between two adjacent enhancement disks, the support is arranged at the bottom of the enhancement disk, and the support is connected to the absorption tower wall.

[0012] Preferably, the support is provided with a plurality of studs, the studs penetrate the efficiency-enhancing disk, two rubber plates and a pressure plate are passed through the studs, the connection between the two efficiency-enhancing disks is clamped between the two rubber plates, a pressure plate is provided on the rubber plate away from the support side, two nuts are threadedly mounted on the studs, the nuts are arranged above the pressure plate, and the nuts make the pressure plate, the rubber plate, the efficiency-enhancing disk and the support fit tightly.

[0013] The studs are tightened with two nuts to make the enhancement plate, support, rubber plate and pressure plate fit closely to each other, thus minimizing the vibration of the enhancement plate.

[0014] Preferably, the support is made of square steel or box beam.

[0015] The beneficial effects of the utility model are as follows: the utility model arranges efficiency enhancement disks evenly distributed in the circumferential direction. After the slurry flows along the wall of the absorption tower to the efficiency enhancement device, a slurry layer is formed under the support of the upward flue gas. The flue gas enters the liquid film layer at high speed to arouse a large number of liquid bubbles. The formed liquid film can effectively increase the mass transfer surface area between the flue gas and the slurry. The flue gas is constantly disturbed by the liquid bubbles while undergoing inertia and diffusion, and changes direction, thereby increasing the contact opportunities between SO2, dust and liquid, and the desulfurization and dust removal efficiency is improved accordingly. The liquid film on the efficiency enhancement device increases the residence time of the flue gas in the absorption tower, and the gas and liquid are fully contacted, thereby improving the desulfurization efficiency, effectively reducing the liquid-gas ratio, and reducing the flow rate and power consumption of the circulating slurry pump.

[0016] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0017] Figure 1 It is the plan layout of the efficiency enhancement device of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the efficiency-enhancing disk of the utility model;

[0019] Figure 3 yes Figure 1 Middle AA section;

[0020] Figure 4 yes Figure 1 Middle BB section view.

[0021] In the figure: 1-efficiency enhancement disk; 2-support; 3-rubber plate; 4-pressing plate; 5-stud; 6-nut; 7-absorption tower wall; 11-bottom plate; 12-first side plate; 13-second side plate; 14-rib plate. [Specific implementation method]

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A wet desulfurization tower efficiency enhancement device, comprising a plurality of efficiency enhancement disks 1, the plurality of efficiency enhancement disks 1 are evenly distributed in the circumferential direction of the absorption tower wall 7, the efficiency enhancement disks 1 are arranged below each spray layer, 400-800 mm away from the center of the spray layer, the efficiency enhancement disks 1 comprise a bottom plate 11, a first side plate 12, a second side plate 13 and a rib plate 14, the bottom plate 11 is in a fan ring shape, holes are evenly opened on the bottom plate 11, the bottom plate 11 is provided with a first side plate 12 away from the outer edge of the absorption tower wall 7, the bottom plate 11 is provided with a second side plate 13 close to the outer edge of the absorption tower wall 7, the first side plate 12 is arranged higher than the second side plate 13, and the bottom plate 11 is provided with a rib plate 14;

[0023] The end of the first side plate 12 is provided with an inner flange facing the absorption tower wall 7;

[0024] The bottom edge of the rib plate 14 is connected to the middle of the bottom plate 11, one side of the rib plate 14 is connected to the first side plate 12, and the other side is connected to the second side plate 13. The top of the rib plate 14 is provided with a bent edge, and the bent edge is connected to the inner turning edge.

[0025] A support 2 is provided between two adjacent enhancement disks 1, the support 2 is provided at the bottom of the enhancement disk 1, and the support 2 is connected to the absorption tower wall 7;

[0026] The support 2 is provided with a plurality of studs 5, the studs 5 are arranged through the efficiency enhancement disk 1, two rubber plates 3 and a pressure plate 4 are passed through the studs 5, the connection between the two efficiency enhancement disks 1 is clamped between the two rubber plates 3, the rubber plate 3 away from the support 2 is provided with a pressure plate 4, two nuts 6 are threadedly installed on the studs 5, the nuts 6 are arranged above the pressure plate 4, and the nuts 6 make the pressure plate 4, the rubber plate 3, the efficiency enhancement disk 1 and the support 2 fit tightly;

[0027] The bottom plate 11 is evenly provided with φ35mm round holes, with an opening rate of 50-60%;

[0028] The support 2 is made of square steel or box beam, and the material is carbon steel anti-corrosion. The efficiency enhancement plate 1, the pressure plate 4, the stud 5, and the nut 6 are made of 2205 or 1.4529 alloy.

[0029] The bottom plate 11, the first side plate 12, the second side plate 13 and the rib plate 14 have a thickness of 2-4 mm, wherein the bottom plate 11 has a width of 300-600 mm and a longest side length of 1000-2000 mm.

[0030] Working process of this utility model:

[0031] During the operation of the utility model, after the slurry flows along the wall of the absorption tower to the efficiency enhancement device, a slurry layer will be formed under the support of the upward flue gas, and the flue gas enters the liquid film layer at a high speed to arouse a large number of liquid bubbles. The formed liquid film can effectively increase the mass transfer surface area between the flue gas and the slurry. The flue gas is constantly disturbed by the liquid bubbles while inertia and diffusion, and changes direction, thereby increasing the contact opportunities between SO2, dust and the liquid; the first side plate and the second side plate are respectively fixed to the front and rear sides of the bottom plate, which can increase the strength of the bottom plate. In addition, the first side plate can prevent the slurry that falls into the efficiency enhancement disk from flowing down from the side, and instead falls from the bottom of the efficiency enhancement disk, thereby making fuller contact with the flue gas; after the nut presses the pressing plate, the efficiency enhancement disk, the support, the rubber plate and the pressing plate are closely fitted to each other, thereby minimizing the vibration of the efficiency enhancement disk.

[0032] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A wet desulfurization tower efficiency enhancement device, characterized in that: The invention comprises a plurality of efficiency enhancement disks (1), wherein the plurality of efficiency enhancement disks (1) are evenly distributed in the circumferential direction of an absorption tower wall (7), and the efficiency enhancement disks (1) are arranged below each spray layer. The efficiency enhancement disks (1) comprise a bottom plate (11), a first side plate (12), a second side plate (13), and a rib plate (14). Holes are evenly opened on the bottom plate (11). The first side plate (12) is arranged at an outer edge of the bottom plate (11) away from the absorption tower wall (7). The second side plate (13) is arranged at an outer edge of the bottom plate (11) close to the absorption tower wall (7). The first side plate (12) is arranged higher than the second side plate (13). The rib plate (14) is arranged on the bottom plate (11).

2. The wet desulfurization tower efficiency enhancement device according to claim 1, characterized in that: The end of the first side plate (12) is provided with an inwardly turned edge facing the absorption tower wall (7).

3. The wet desulfurization tower efficiency enhancement device according to claim 2, characterized in that: The bottom edge of the rib plate (14) is connected to the middle of the bottom plate (11), one side of the rib plate (14) is connected to the first side plate (12), and the other side is connected to the second side plate (13), and the top of the rib plate (14) is provided with a bent edge, and the bent edge is connected to the inner turned edge.

4. The wet desulfurization tower efficiency enhancement device according to claim 1, characterized in that: A support (2) is provided between two adjacent enhancement disks (1); the support (2) is arranged at the bottom of the enhancement disk (1); and the support (2) is connected to the absorption tower wall (7).

5. The wet desulfurization tower efficiency enhancement device according to claim 4, characterized in that: The support (2) is provided with a plurality of studs (5), the studs (5) being arranged through the efficiency enhancing disk (1), the studs (5) being provided with two rubber plates (3) and a pressure plate (4), the connection between the two efficiency enhancing disks (1) being clamped between the two rubber plates (3), the rubber plate (3) being provided with a pressure plate (4) on the side away from the support (2), the studs (5) being threadedly mounted with two nuts (6), the nuts (6) being arranged above the pressure plate (4), the nuts (6) making the pressure plate (4), the rubber plate (3), the efficiency enhancing disk (1) and the support (2) fit tightly together.

6. The wet desulfurization tower efficiency enhancement device according to claim 4, characterized in that: The support (2) is made of square steel or box beam.

7. The wet desulfurization tower efficiency enhancement device according to claim 1, characterized in that: The bottom plate (11) is in the shape of a fan ring, and circular holes are evenly opened on the bottom plate (11), with an opening rate of 50-60%.

8. The wet desulfurization tower efficiency enhancement device according to claim 1, characterized in that: The efficiency enhancement disk (1) is 400-800 mm away from the center of the spray layer.

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