Atomizing device in desulfurization tower

Abstract

The utility model is suitable for the field of desulfurization tower, provides a kind of atomization device in desulfurization tower, including pipeline frame, by at least one branch pipe connected with supply pipeline is constituted, the local part of branch pipe is distributed along the center to edge direction of flue channel, and the local pipeline height of position close to center is lower than the local pipeline height of position close to edge;Multiple atomization spray head, it is distributed along the extension direction of branch pipe, by this, the utility model can:1, by the pipeline structure of being set to play the dispersion effect to concentrated flue gas, improve the contact of slurry and sulfur dioxide, improve separation effect;2, by the solution of adsorbing sulfur dioxide is gathered, reduce its drift and adhere to pipe wall, effectively reduce secondary entrainment.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization towers, and in particular to an atomizing device inside a desulfurization tower. Background Technology

[0002] Wet flue gas desulfurization is one of the main methods for desulfurization towers to achieve desulfurization. Its working principle is that the flue gas entering the desulfurization tower is sprayed with slurry, and the purpose of desulfurization is achieved by utilizing the characteristic that sulfur dioxide in the flue gas is easily soluble in water.

[0003] In some cases, the flue gas transported within the desulfurization tower tends to accumulate in the center of the flue, resulting in excessively high flue gas density in the central area and relatively low density at the edges. Since the nozzles of the atomizing devices within the desulfurization tower are evenly distributed, the aforementioned area with excessively high flue gas density in the center may not be able to mix with the slurry in time and will be discharged from the outlet pipe, leading to low desulfurization efficiency.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] To address the aforementioned deficiencies, the purpose of this utility model is to provide an atomizing device inside a desulfurization tower, which can: 1. disperse concentrated flue gas through the designed pipe structure, improve the contact between the slurry and sulfur dioxide, and enhance the separation effect; 2. gather the solution adsorbed with sulfur dioxide through the guide plate, reduce its dispersion and adhesion to the pipe wall, and effectively reduce secondary entrainment.

[0006] To achieve the above objectives, this utility model provides an atomizing device inside a desulfurization tower, comprising: a pipe frame consisting of at least one branch pipe connected to a supply pipe, wherein a portion of the branch pipe is distributed along the direction from the center to the edge of the flue channel, and the height of the portion of the pipe near the center is lower than the height of the portion of the pipe near the edge; and a plurality of atomizing nozzles distributed along the extension direction of the branch pipe.

[0007] According to the desulfurization tower atomization device of this utility model, the local pipes distributed along the center to the edge of the flue channel have an arc-shaped structure, and the arc-shaped convex area faces upward or downward.

[0008] According to the desulfurization tower atomization device of this utility model, there are multiple branch pipes, which are evenly distributed along the axis of the flue channel; there is an included angle A between the multiple branch pipes.

[0009] According to the desulfurization tower atomization device of this utility model, there are multiple branch pipes that are interconnected; the multiple branch pipes are distributed in a ring at equal intervals around the center.

[0010] According to the desulfurization tower atomization device of this utility model, a guide plate is provided on the side of the arc-shaped convex area.

[0011] According to the desulfurization tower atomization device of this utility model, the guide plate is provided in two sets and is symmetrically arranged relative to the branch pipe.

[0012] According to the desulfurization tower atomization device of this utility model, the two sets of guide plates have an included angle B, and the two form an upward guide channel with an included angle of less than 180°.

[0013] According to the desulfurization tower atomizing device of this utility model, multiple branch pipes are connected to a ring-shaped connecting pipe; the ring-shaped connecting pipe is close to the side wall of the flue channel, and atomizing nozzles are evenly spaced at its lower part.

[0014] This invention provides an atomizing device for a desulfurization tower, including a pipe frame and several atomizing nozzles connected to the pipe frame. The pipe frame is connected to a supply component, which includes a pump body and a connected supply pipe. The liquid transported by the pump body, i.e., slurry, can be drawn from a storage tank at the bottom of the desulfurization tower or from other tanks. The pipe frame is composed of at least one branch pipe connected to the supply pipe, i.e., it can be composed of one branch pipe or several branch pipes. The branch pipes are distributed locally along the center to the edge of the flue gas channel, and the height of the local pipe A near the center is lower than the height of the local pipe A near the edge. The branch pipes distributed along the center to the edge with a height difference have a certain guiding and dispersing effect, i.e., some flue gas will drift along the pipe wall to the side wall near the flue gas channel. This disperses the flue gas with high central density, optimizes the contact area between sulfur dioxide and slurry in the flue gas (after dispersion, the flue gas will have more contact with the atomized water flow sprayed by the atomizing nozzles), and improves the dissolution effect. This utility model can: 1. disperse concentrated flue gas through the set pipeline structure, improve the contact between slurry and sulfur dioxide, and improve the separation effect; 2. gather the solution with adsorbed sulfur dioxide through the guide plate, reduce its dispersion and adhesion to the pipe wall, and effectively reduce secondary entrainment. Attached Figure Description

[0015] Figure 1 This is an installation diagram of the atomizing device of this utility model; Figure 2 This is a schematic diagram of the atomizing device in the first embodiment; Figure 3 This is a schematic diagram of the atomizing device in the second embodiment; Figure 4 This is a schematic diagram of the atomizing device in the third embodiment. Figure 5 This is a schematic diagram of the atomizing device with an added guide plate in the second embodiment. Figure 6 This is a cross-sectional diagram of a branch pipe with an added baffle. Figure 7 This is a schematic diagram of the operation of the branch pipe for dispersing flue gas. In the diagram, 01-flue channel, 02-liquid storage tank, 1-pipe rack, 11-branch pipe, 3-guide plate, 4-atomizing nozzle, A1-local pipe near the center, A2-local pipe near the edge, 8-ring connecting pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0017] See Figure 1 This utility model provides an atomizing device inside a desulfurization tower. The atomizing device includes a pipe frame 1 and a plurality of atomizing nozzles 4 connected to the pipe frame 1. The pipe frame 1 is connected to a supply component. The supply component includes a pump body and a supply pipe connected thereto. The liquid transported by the pump body, i.e., slurry, can be drawn from the liquid storage tank 02 at the bottom of the desulfurization tower or from other tanks.

[0018] The pipe rack 1 is composed of at least one branch pipe 11 connected to the supply pipe, that is, it can be composed of one branch pipe 11 or several branch pipes 11.

[0019] See Figure 7 The branch pipes are distributed locally along the center to the edge of the flue channel 01, and the height of the local pipe A1 near the center is lower than the height of the local pipe A2 near the edge. In the above structure, the branch pipes distributed along the center to the edge with a height difference will have a certain guiding and dispersing effect, that is, some flue gas will drift along the pipe wall to the side wall of the flue pipe. In this way, the flue gas with high central density is dispersed, optimizing the contact area between sulfur dioxide and slurry in the flue gas (after the flue gas is dispersed, it will come into more contact with the atomized water flow sprayed by the atomizing nozzle), and improving the dissolution effect.

[0020] The local pipes distributed along the center to the edge of the flue passage have an arc-shaped structure, with the outwardly convex arc-shaped area facing upwards or downwards. See Figure 2 In the first embodiment, the pipe frame 1 is composed of a branch pipe 11, the middle part of which protrudes downward or upward, and the branch pipe 11 is provided with multiple atomizing nozzles along its extension direction, and the multiple atomizing nozzles can be arranged at equal intervals.

[0021] See Figure 3In the second embodiment, multiple branch pipes 11 are provided, and the multiple branch pipes 11 are evenly distributed along the axis of the flue channel; there is an included angle A between the multiple branch pipes 11, that is, in this example, multiple groups are set in different height directions based on the first embodiment, and each group has an angle between them. In this example, by increasing the number of branch pipes 11, the area of ​​the pipeline for guiding flue gas is further increased, thereby increasing the dispersion amount and improving the dispersion effect.

[0022] See Figure 4 In the third embodiment, multiple branch pipes 11 are provided and interconnected; the multiple branch pipes 11 are distributed in a ring at equal intervals around the center (center of the flue pipe). This is a further optimization based on the second embodiment. The multiple branch pipes 11 are connected to a ring-shaped connecting pipe 8, which is further connected to a supply pipe; the ring-shaped connecting pipe 8 is close to the side wall of the flue pipe, and atomizing nozzles are evenly spaced at its lower part. The dispersed flue gas comes into contact with the atomized water flow sprayed from the atomizing nozzles on the ring-shaped connecting pipe 8.

[0023] See Figure 5 , Figure 6 To further improve the dispersion and guiding effect of branch pipe 11, based on the above-described embodiments one, two, and three, a guide plate 3 is provided on the side of the arc-shaped convex region. The guide plate 3 can increase the guiding area of ​​branch pipe 11 to optimize the guiding effect. It should be noted that the structure of the guide plate 3 can be configured as needed. For example, as shown in the figure, two sets of guide plates 3 are provided and symmetrically arranged relative to branch pipe 11. The two sets of guide plates 3 have an included angle B, forming an upward guiding channel with an included angle of less than 180°. The guide plate 3 not only disperses the flue gas but also gathers the solvent (the solvent is a liquid formed by the adsorption of sulfur dioxide by the slurry). This can effectively reduce the solvent dispersion and adsorption on the flue pipe wall, further reducing "secondary entrainment," that is, the solvent attached to the pipe wall is re-adsorbed by the flue gas and rises, resulting in a decrease in the sulfur dioxide separation effect. The solvent gathered on the guide plate 3 is gathered and guided downward by gravity, further falling from the lowest end of branch pipe 11. It should be noted that the guide plate 3 is only partially installed on the side wall of the branch pipe 11, and in particular, no guide plate 3 is installed at the lowest end to avoid affecting the dripping operation.

[0024] In summary, this utility model provides an atomizing device inside a desulfurization tower, including a pipe frame and several atomizing nozzles connected to the pipe frame; the pipe frame is connected to a supply component; wherein the supply component includes a pump body and a connected supply pipe, the liquid transported by the pump body, i.e., slurry, can be drawn from the liquid storage tank at the bottom of the desulfurization tower or from other tanks. The pipe frame is composed of at least one branch pipe connected to the supply pipe, i.e., it can be composed of one branch pipe or several branch pipes. The branch pipes are distributed locally along the center to the edge of the flue channel, and the height of the local pipe A near the center is lower than the height of the local pipe A near the edge; the branch pipes distributed along the center to the edge with a height difference have a certain guiding and dispersing effect, i.e., some flue gas will drift along the pipe wall to the position near the side wall of the flue channel, thereby dispersing the flue gas with high central density, optimizing the contact area between sulfur dioxide and slurry in the flue gas (after the flue gas is dispersed, it will have more contact with the atomized water flow sprayed by the atomizing nozzles), and improving the dissolution effect. This utility model can: 1. disperse concentrated flue gas through the set pipeline structure, improve the contact between slurry and sulfur dioxide, and improve the separation effect; 2. gather the solution with adsorbed sulfur dioxide through the guide plate, reduce its dispersion and adhesion to the pipe wall, and effectively reduce secondary entrainment.

[0025] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An atomizing device inside a desulfurization tower, characterized in that, include: The pipe rack consists of at least one branch pipe connected to the supply pipe, wherein the branch pipe is distributed locally along the direction from the center to the edge of the flue passage, and the height of the local pipe near the center is lower than the height of the local pipe near the edge. Multiple atomizing nozzles are distributed along the extension direction of the branch pipes; the local pipes distributed along the center to the edge of the flue channel have an arc-shaped structure, with the arc-shaped convex area facing upwards or downwards; A guide plate is provided on the side of the arc-shaped convex region.

2. The atomizing device inside the desulfurization tower according to claim 1, characterized in that, The branch pipe is provided in multiple parts, and the multiple branch pipes are distributed at equal intervals along the axis of the flue channel; An angle A exists between multiple branch pipes.

3. The atomizing device inside the desulfurization tower according to claim 1, characterized in that, The branch pipes are provided in multiple parts and are interconnected; Multiple branch pipes are distributed in a ring at equal intervals around the center.

4. The atomizing device inside the desulfurization tower according to claim 1, characterized in that, The guide vanes are provided in two sets and are arranged symmetrically relative to the branch pipes.

5. The atomizing device inside the desulfurization tower according to claim 4, characterized in that, The two sets of guide vanes have an included angle B, forming an upward-facing guide channel with an included angle of less than 180°.

6. The atomizing device inside the desulfurization tower according to claim 3, characterized in that, The multiple branch pipes are connected to a ring-shaped connecting pipe. The annular connecting pipe is located near the side wall of the flue channel, and atomizing nozzles are evenly spaced at its lower part.

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