AU2021105560A4

AU2021105560A4 - Spraying device for desulfurization tower

Info

Publication number: AU2021105560A4
Application number: AU2021105560A
Authority: AU
Inventors: Jianchao LAN; Jianqing RUAN; Guorui YAO; Shan Zhu
Original assignee: Hebei Zhongke Langbo Environmental Protection Technology Co Ltd
Current assignee: Hebei Zhongke Langbo Environmental Protection Technology Co Ltd
Priority date: 2021-07-08
Filing date: 2021-08-16
Publication date: 2021-11-04
Anticipated expiration: 2029-08-16
Also published as: CN216125453U

Abstract

OF THE DISCLOSURE The present utility model discloses a spraying device for a desulfurization tower, which comprises a desulfurization tower, wherein the outer wall of the desulfurization tower is annularly provided with a plurality of spraying nozzles, a connecting pipe is fixed at the spraying nozzles, a spraying pipe is provided in the connecting pipe, the spraying pipe comprises a long spraying pipe and a short spraying pipe which are arranged at intervals; the outer wall of the spraying pipe is provided with a first flange, the outer end of the connecting pipe is provided with a second flange, the second flange is connected with the first flange in a matching manner, the outer port of the spraying pipe is communicated with a ring pipe through an elbow, the inner port of the spraying pipe is of a closed structure, the spraying pipe is provided with a plurality of spray headers along the length direction, and the spray header is located inside the desulfurization tower. The present utility model can disassemble a single spraying pipe and separate it from the desulfurization tower, and repair and replace the spray header outside the desulfurization tower, thus preventing workers from entering the desulfurization tower for maintenance, effectively ensuring the safety of workers, and making the maintenance of the spraying device more convenient and faster. - 1/2 01 302 6 F1 101 FIG. 1 5 4 2 101 3 8 \= '~ ki / / 1-0 FIG. 2

Description

- 1/2

01 302 6

F1 101

FIG. 1

4 2 101 3 8

\= '~ ki / /

1-0

FIG. 2

SPRAYING DEVICE FOR DESULFURIZATION TOWER TECHNICAL FIELD

[01] The present utility model relates to the technical field of flue gas desulfurization, in particular to a spraying device for a desulfurization tower.

BACKGROUNDART

[02] At present, a wet desulfurization tower is widely used in the purification process of industrial high-sulfur tail gas. The lime-gypsum wet desulfurization process is widely used. Lime slurry is atomized by a high-pressure nozzle, and then comes into countercurrent contact with high-sulfur tail gas, so that pollutants contained in the tail gas are removed by strong mass transfer, and good results are achieved.

[03] As the desulfurizer used is lime, the lime is easy to scale in the nozzle after being used for a long time, resulting in blockage of the nozzle. After the nozzle is blocked, the desulfurization efficiency is seriously affected, and the maintenance is difficult, which greatly increases the labor burden of employees.

[04] In the prior art, the spraying device for a desulfurization tower is mostly fixed inside the desulfurization tower. For example, the Chinese utility model patent with the Application NO. CN201720392380.7 discloses a spray mechanism for a desulfurization tower, wherein the spraying pipe of the spray mechanism cannot be taken out of the desulfurization tower, which leads to the difficulty in maintenance of the spray mechanism.

SUMMARY

[05] The purpose of the present utility model is to provide a spraying device for a desulfurization tower, which solves the problem that the existing spraying device for a desulfurization tower is difficult to repair.

[06] To solve the above technical problems, the present utility model adopts the following technical scheme.

[07] The present utility model relates to a spraying device for a desulfurization tower, comprising a desulfurization tower, wherein the outer wall of the desulfurization tower is annularly provided with a plurality of spraying nozzles, a connecting pipe is fixed at the spraying nozzles, a spraying pipe is provided in the connecting pipe, the outer wall of the spraying pipe is provided with a first flange, the outer end of the connecting pipe is provided with a second flange, the second flange is connected with the first flange in a matching manner, the outer port of the spraying pipe is communicated with a ring pipe through an elbow, both ends of the elbow are connected with the spraying pipe and the ring pipe through a flange plate, respectively, the inner port of the spraying pipe is of a closed structure, the spraying pipe is provided with a plurality of spray headers along the length direction, and the spray header is located inside the desulfurization tower;

[08] the spraying pipe comprises long spraying pipes and short spraying pipes which are arranged at intervals.

[09] Further, the ring pipe comprises two arc-shaped pipes which are connected together in an annular shape, the ends of the arc-shaped pipes are of a closed structure

I and are provided with a third flange, the arc-shaped pipes are provided with a plurality of branch pipes, the branch pipe is communicated with the corresponding elbow, and the arc-shaped pipe is provided with a slurry inlet.

[10] Further, the arc-shaped pipe is connected to the outer wall of the desulfurization tower through an annular bracket, the annular bracket is welded on the desulfurization tower, and the arc-shaped pipe is fixed on the annular bracket through a U-shaped pipe hoop.

[11] Further, an impact-resistant baffle is provided in the desulfurization tower to prevent the outermost spray header from scouring the inner wall of the desulfurization tower, the impact-resistant baffle is located below the spraying pipe, and the impact-resistant baffle is annular and has a necking structure from top to bottom.

[12] Further, an air deflector is provided at the lower part of the impact-resistant baffle, and the air deflector is annular and has a flared structure from top to bottom.

[13] Compared with the prior art, the present utility model has the beneficial technical effects.

[14] The present utility model can disassemble a single spraying pipe and separate it from the desulfurization tower, and repair and replace the spray header outside the desulfurization tower, thus preventing workers from entering the desulfurization tower for maintenance, effectively ensuring the safety of workers, and making the maintenance of the spraying device more convenient and faster.

BRIEF DESCRIPTION OF THE DRAWINGS

[01] The present utility model will be further explained with reference to the accompanying drawings.

[02] FIG. 1 is a top schematic structural view of a spraying device for a desulfurization tower according to the present utility model;

[03] FIG. 2 is a front schematic structural view of a spraying device for a desulfurization tower according to the present utility model;

[04] FIG. 3 is a top schematic structural view of an arc-shaped pipe according to the present utility model;

[05] FIG. 4 is a schematic structural view of an impact-resistant baffle and an air deflector according to the present utility model.

[06] Reference signs: 1. Desulfurization tower; 101. Spraying nozzle; 2. Connecting pipe; 3. Spraying pipe; 301. Long spraying pipe; 302. Short spraying pipe; 4. First flange; 5. Second flange; 6. Elbow; 7. Ring pipe; 701. Arc-shaped pipe; 702. Branch pipe; 703. Third flange; 704. Slurry inlet; 8. Spray header; 9. Annular bracket; 10. Impact-resistant baffle; 1001. Air deflector.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[07] In order to enable those skilled in the art to better understand the technical scheme of the present utility model, the present utility model will be further described in detail with reference to the drawings and specific embodiments.

[08] As shown in FIGS. 1 and 2, this embodiment discloses a spraying device for a desulfurization tower, comprising a desulfurization tower 1, wherein the outer wall of the desulfurization tower 1 is annularly provided with a plurality of spraying nozzles 101, a connecting pipe 2 is welded at the spraying nozzles 101, a spraying pipe 3 is provided in the connecting pipe 2, the outer wall of the spraying pipe 3 is welded with a first flange 4, the outer end of the connecting pipe 2 is welded with a second flange 5, the second flange 5 is connected with the first flange 4 by bolts, the outer port of the spraying pipe 3 is communicated with a ring pipe 7 through an elbow 6, both ends of the elbow 6 are connected with the spraying pipe 3 and the ring pipe 7 through a flange plate, respectively, the inner port of the spraying pipe 3 is of a closed structure, the spraying pipe 3 is provided with a plurality of spray headers 8 along the length direction, and the spray header 8 is located inside the desulfurization tower 1.

[09] When the spray header 8 is blocked, the spraying pipe 3 can be pulled out of the desulfurization tower 1 by disassembling the first flange 4, the second flange 5 and the elbow 6, and then the spray header 8 on the spraying pipe 3 can be repaired and replaced.

[10] In order to increase the spray coverage and avoid the flue gas from forming an escape area between two adjacent spraying pipes 3. The spraying pipe 3 comprises long spraying pipes 301 and short spraying pipes 302. The length of the long spraying pipe 301 is longer than that of the short spraying pipe 302. The long spraying pipe 301 and the short spraying pipe 302 are arranged at intervals.

[11] As shown in FIGS. 1 and 3, the ring pipe 7 comprises two arc-shaped pipes 701 which are connected together in an annular shape. The ends of the arc-shaped pipes 701 are of a closed structure and are welded with a third flange 703. The third flanges 703 at the abutting ends of the two arc-shaped pipes 701 are fixed together by bolts. The arc-shaped pipes 701 are provided with a plurality of branch pipes 702, the branch pipe 702 is communicated with the corresponding elbow 6, and the arc-shaped pipe 701 is provided with a slurry inlet 704.

[12] The arc-shaped pipe 701 is connected to the outer wall of the desulfurization tower 1 through an annular bracket 9, the annular bracket 9 is welded on the desulfurization tower 1, and the arc-shaped pipe 701 is fixed on the annular bracket 9 through a U-shaped pipe hoop.

[13] As shown in FIGS. 1 and 4, in order to prevent the spray header 8 at the edge position from scouring the inner wall of the desulfurization tower 1, an impact-resistant baffle 10 is welded on the inner wall of the desulfurization tower 1, the impact-resistant baffle 10 is located below the spraying pipe 3, and the impact-resistant baffle 10 is annular and has a necking structure from top to bottom. When the spray header 8 at the edge position sprays slurry, the formed cone-shaped mist drops on the impact-resistant baffle 10.

[14] In order to make the flue gas pass through the impact-resistant baffle 10 smoothly and reduce the resistance where flue gas passes, an air deflector 1001 is provided at the lower part of the impact-resistant baffle 10. The air deflector 1001 is welded on the inner wall of the desulfurization tower 1. The air deflector 1001 is annular and has a flared structure from top to bottom.

[15] The above embodiments only describe the preferred mode of the present utility model, rather than limit the scope of the present utility model. On the premise of not departing from the design spirit of the present utility model, all modifications and improvements made by those skilled in the art to the technical scheme of the present utility model shall fall within the scope of protection determined by the claims of the present utility model.

Claims

WHAT IS CLAIMED IS:

1. A spraying device for a desulfurization tower, comprising a desulfurization tower (1), wherein the outer wall of the desulfurization tower (1) is annularly provided with a plurality of spraying nozzles (101), a connecting pipe (2) is fixed at the spraying nozzles (101), a spraying pipe (3) is provided in the connecting pipe (2), the outer wall of the spraying pipe (3) is provided with a first flange (4), the outer end of the connecting pipe (2) is provided with a second flange (5), the second flange (5) is connected with the first flange (4) in a matching manner, the outer port of the spraying pipe (3) is communicated with a ring pipe (7) through an elbow (6), both ends of the elbow (6) are connected with the spraying pipe (3) and the ring pipe (7) through a flange plate, respectively, the inner port of the spraying pipe (3) is of a closed structure, the spraying pipe (3) is provided with a plurality of spray headers (8) along the length direction, and the spray header (8) is located inside the desulfurization tower (1); the spraying pipe (3) comprises long spraying pipes (301) and short spraying pipes (302) which are arranged at intervals.

2. The spraying device for a desulfurization tower according to claim 1, wherein the ring pipe (7) comprises two arc-shaped pipes (701) which are connected together in an annular shape, the ends of the arc-shaped pipes (701) are of a closed structure and are provided with a third flange (703), the arc-shaped pipes (701) are provided with a plurality of branch pipes (702), the branch pipe (702) is communicated with the corresponding elbow (6), and the arc-shaped pipe (701) is provided with a slurry inlet (704).

3. The spraying device for a desulfurization tower according to claim 2, wherein the arc-shaped pipe (701) is connected to the outer wall of the desulfurization tower (1) through an annular bracket (9), the annular bracket (9) is welded on the desulfurization tower (1), and the arc-shaped pipe (701) is fixed on the annular bracket (9) through a U-shaped pipe hoop.

4. The spraying device for a desulfurization tower according to claim 1, wherein an impact-resistant baffle (10) is provided in the desulfurization tower (1) to prevent the outermost spray header (8) from scouring the inner wall of the desulfurization tower (1), the impact-resistant baffle (10) is located below the spraying pipe (3), and the impact-resistant baffle (10) is annular and has a necking structure from top to bottom.

5. The spraying device for a desulfurization tower according to claim 4, wherein an air deflector (1001) is provided at the lower part of the impact-resistant baffle (10), and the air deflector (1001) is annular and has a flared structure from top to bottom.

FIG. 2 FIG. 1 －1/2－

FIG. 4 FIG. 3 －2/2－