Smoke exhaust pipeline of desulfurizing tower

By installing a drainage component at the bottom of the flue gas outlet pipe, and using a mixing component and a fan system to automatically remove liquid, the problem of water droplets condensing on the inner wall of the flue gas outlet pipe of the wet desulfurization tower is solved, thereby improving the air outlet efficiency and pipe life.

CN224180606UActive Publication Date: 2026-05-01JIANGSU CHENGZHU MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CHENGZHU MASCH TECH CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Small water droplets condense on the inner wall of the flue gas outlet pipe of the wet desulfurization tower, causing liquid accumulation, which affects the air outlet efficiency and pipe life.

Method used

A drainage assembly, including an agitator and a drainer, is installed at the bottom of the flue gas outlet pipe. The agitator stirs the liquid and, combined with the high-pressure air input from the fan at the bottom of the desulfurization tower, and the low-pressure suction of the drainer, achieves automatic drainage.

Benefits of technology

It improves air output efficiency and extends the service life of the smoke exhaust duct, prevents blockage, and has a simple and practical structure.

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Abstract

The utility model discloses a smoke exhaust pipeline of a desulfurizing tower. The smoke exhaust pipeline comprises a smoke inlet pipeline, the desulfurizing tower is provided with a smoke inlet and a smoke outlet, the smoke inlet pipeline is connected with the smoke inlet, and waste gas enters the desulfurizing tower from the smoke inlet pipeline and is desulfurized; the smoke outlet pipeline is connected with the smoke outlet, and waste gas is discharged from the smoke outlet pipeline; the drainage assembly comprises a stirring piece and a drainage piece; wherein the stirring part is mounted above the smoke outlet pipeline, and the execution end of the stirring part extends into the smoke outlet pipeline; the smoke discharging pipeline can prevent impurities from sinking to the bottom, the first fan arranged at the bottom of the desulfurizing tower is used for inputting high pressure into the desulfurizing tower, the second fan of the water discharging part is used for pumping low pressure, the liquid in the smoke discharging pipeline is pumped out, and the smoke discharging pipeline is used for discharging the liquid in the smoke discharging pipeline. Therefore, automatic drainage can be realized, and the air outlet efficiency is high, and the service life of the smoke outlet pipeline is long.
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Description

Technical Field

[0001] This utility model relates to exhaust pipes, specifically to an exhaust pipe for a desulfurization tower. Background Technology

[0002] The flue gas outlet duct of a wet desulfurization tower has a straight section. Due to the high water content in the process waste gas from wet desulfurization, small water droplets condense on the inner wall of the outlet duct. Over time, liquid accumulates inside the outlet duct, affecting air output efficiency and reducing the duct's service life. Therefore, it is necessary to improve upon the shortcomings of the existing technology. Utility Model Content

[0003] This application aims to address the problems mentioned in the background section.

[0004] This utility model discloses a desulfurization tower exhaust pipe, comprising: an inlet pipe; a desulfurization tower having an inlet and an outlet, the inlet pipe being connected to the inlet, through which waste gas enters the desulfurization tower and undergoes desulfurization; an outlet pipe connected to the outlet, through which waste gas is discharged; and a drainage assembly comprising an agitator and a drainage component; wherein the agitator is installed above the outlet pipe, and the agitator's actuator extends into the outlet pipe; and the drainage component... Located below the flue gas outlet pipe, the liquid in the flue gas outlet pipe is discharged from the outlet of the drainage component. This utility model, by setting a drainage component at the bottom of the flue gas outlet pipe, uses the agitator in the drainage component to agitate the liquid, which can prevent impurities from settling to the bottom. During drainage, it can be drained together with water. Then, the first fan set at the bottom of the desulfurization tower inputs high pressure into the desulfurization tower, and the second fan of the drainage component draws low pressure to extract the liquid in the flue gas outlet pipe. In this way, drainage can be automatically achieved. This utility model has the advantages of high air outlet efficiency and long service life of the flue gas outlet pipe.

[0005] In one specific embodiment, the desulfurization tower includes a tower body and an air supply component disposed at the bottom of the tower body. The air supply component includes a first fan and an annular diversion plate disposed inside the tower body. The first fan supplies air into the tower body, and high-pressure air is delivered through the first fan. The air is directed towards the direction of the accumulated water through the annular diversion plate, so that the drainage is thorough.

[0006] In one specific embodiment, the agitator includes a sleeve fixed to the smoke outlet pipe and a rotating shaft rotatably connected to the sleeve. One end of the rotating shaft is connected to a drive unit, and the other end is provided with an impeller. The impeller is located inside the smoke outlet pipe. The drive unit drives the impeller to rotate, agitating the sediment at the bottom of the accumulated water and preventing the smoke outlet pipe from becoming blocked.

[0007] In one specific embodiment, the flue gas outlet pipe includes a flue gas outlet section and a water collection section, the water collection section is connected to the desulfurization tower, and the flue gas outlet section extends from the water collection section.

[0008] In one specific embodiment, the drainage component includes a second fan, the outlet of which is connected to the water collection section. The second fan is used to extract liquid from the water collection section. By using the negative pressure of the second fan and cooperating with the high pressure input of the first fan, the accumulated water is discharged. The structure is simple and highly practical.

[0009] In one specific embodiment, the bottom of the smoke outlet is provided with an arc-shaped condensation plate, and there are multiple condensation plates. The ends of the condensation plates are cylindrical. The air outlet of the second fan is connected to a housing, and the housing is connected to the condensation plates. A portion of the condensate will collect at the cylindrical ends of the condensation plates. By connecting the condensation plates through the housing, the flow can be divided to avoid excessive flow.

[0010] In one specific embodiment, the smoke inlet pipe, the smoke outlet pipe, and the housing are provided with observation windows for easy observation and convenient operation.

[0011] Beneficial effects: This utility model, by setting a drainage component at the bottom of the flue gas outlet pipe and using the agitator in the drainage component to agitate the liquid, can prevent impurities from settling to the bottom. During drainage, the liquid can be drained along with the water. Then, the first fan set at the bottom of the desulfurization tower inputs high pressure into the desulfurization tower, and the second fan of the drainage component draws low pressure to extract the liquid in the flue gas outlet pipe. This allows for automatic drainage. This utility model has the advantages of high air outlet efficiency and long service life of the flue gas outlet pipe. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a desulfurization tower exhaust pipe in this embodiment;

[0013] Figure 2 This is a schematic diagram of the smoke inlet duct;

[0014] Figure 3 This is a schematic diagram of the desulfurization tower;

[0015] Figure 4 This is a schematic diagram of the agitator.

[0016] Figure 5 This is a structural diagram of the smoke outlet pipe and drainage components.

[0017] In the diagram: 100, exhaust pipe; 1, inlet pipe; 2, desulfurization tower; 20, tower body; 21, annular diversion plate; 22, first fan; 3, exhaust pipe; 4, drainage assembly; 40, sleeve; 41, shaft; 42, impeller; 43, water collection section; 44, shell; 45, condensate plate; 46, second fan. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "counterclockwise," "clockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0021] See Figures 1-5This embodiment of a desulfurization tower exhaust pipe 100 includes an inlet pipe 1; a desulfurization tower 2, which has an inlet and an outlet, with the inlet pipe 1 connected to the inlet, through which exhaust gas enters the desulfurization tower 2 and undergoes desulfurization; an outlet pipe 3, which is connected to the outlet, through which exhaust gas is discharged; and a drainage assembly 4, which includes an agitator and a drainage component; wherein the agitator is installed above the outlet pipe 3, and the agitator's actuator extends into the outlet pipe 3; wherein the drainage component... The component is located below the flue gas outlet pipe 3. The liquid in the flue gas outlet pipe 3 is discharged from the outlet of the drainage component. This utility model sets a drainage component 4 at the bottom of the flue gas outlet pipe 3. The agitator in the drainage component 4 agitates the liquid, which can prevent impurities from settling to the bottom. It can be drained together with water during drainage. Then, the first fan 22 set at the bottom of the desulfurization tower 2 inputs high pressure into the desulfurization tower 2, and the second fan 46 of the drainage component draws low pressure to extract the liquid in the flue gas outlet pipe 3. In this way, drainage can be automatically achieved. This utility model has the advantages of high air output efficiency and long service life of the flue gas outlet pipe 3.

[0022] See Figure 3 The desulfurization tower 2 includes a tower body 20 and an air supply component located at the bottom of the tower body 20. The air supply component includes a first fan 22 and an annular diversion plate 21 located inside the tower body 20. The first fan 22 supplies air into the tower body 20. High-pressure air is delivered by the first fan 22 and the air direction is directed towards the direction of water accumulation by the annular diversion plate 21, so that the drainage is thorough.

[0023] See Figure 4 The agitator includes a sleeve 40 fixed to the smoke outlet pipe 3 and a rotating shaft 41 rotatably connected to the sleeve 40. One end of the rotating shaft 41 is connected to a drive unit, and the other end is provided with an impeller 42. The impeller 42 is located inside the smoke outlet pipe 3. The drive unit drives the impeller 42 to rotate, agitating the sediment at the bottom of the accumulated water and preventing the smoke outlet pipe 3 from becoming blocked.

[0024] See Figure 1 and Figure 5 The flue pipe 3 includes a flue outlet section and a water collection section 43. The water collection section 43 is connected to the desulfurization tower 2. The flue outlet section extends from the water collection section 43. The drainage component includes a second fan 46. The air outlet of the second fan 46 is connected to the water collection section 43. The second fan 46 is used to extract the liquid from the water collection section 43. By applying negative pressure through the second fan 46 and cooperating with the first fan 22 to input high pressure, the accumulated water is discharged. The structure is simple and highly practical.

[0025] See Figure 5The bottom of the smoke outlet is provided with an arc-shaped condensation plate 45. There are multiple condensation plates 45, and the ends of the condensation plates 45 are cylindrical. The air outlet of the second fan 46 is connected to a housing 44. The housing 44 is connected to the condensation plates 45. A portion of the condensate will collect at the cylindrical ends of the condensation plates 45. By connecting the condensation plates 45 through the housing 44, the flow can be divided to avoid excessive flow.

[0026] In addition, observation windows are provided on the inlet pipe 1, the outlet pipe 3, and the housing 44 to facilitate observation and operation.

[0027] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A flue gas exhaust pipe for a desulfurization tower, characterized in that, include: Smoke inlet duct; A desulfurization tower has a flue gas inlet and a flue gas outlet. The flue gas inlet pipe is connected to the flue gas inlet, and the exhaust gas enters the desulfurization tower from the flue gas inlet pipe and is desulfurized. A smoke outlet pipe is connected to the smoke outlet, and exhaust gas is discharged from the smoke outlet pipe; A drainage assembly, comprising an agitator and a drainage component; The agitator is installed above the smoke outlet pipe, and the agitator's actuator extends into the smoke outlet pipe. The drain component is located below the smoke outlet pipe, and the liquid in the smoke outlet pipe is discharged from the outlet of the drain component.

2. The flue gas duct of a desulfurization tower as described in claim 1, characterized in that: The desulfurization tower includes a tower body and an air supply component located at the bottom of the tower body. The air supply component includes a first fan and an annular guide plate located inside the tower body. The first fan supplies air into the tower body.

3. The flue gas exhaust pipe of a desulfurization tower as described in claim 2, characterized in that: The agitator includes a sleeve fixed to the smoke outlet pipe and a rotating shaft rotatably connected to the sleeve. One end of the rotating shaft is connected to a drive unit, and the other end is provided with an impeller, which is located inside the smoke outlet pipe.

4. The flue gas exhaust pipe of a desulfurization tower as described in claim 3, characterized in that: The flue gas outlet pipe includes a flue gas outlet section and a water collection section. The water collection section is connected to the desulfurization tower, and the flue gas outlet section extends from the water collection section.

5. The flue gas duct of a desulfurization tower as described in claim 4, characterized in that: The drainage component includes a second fan, the outlet of which is connected to the water collection section, and the second fan is used to extract liquid from the water collection section.

6. The flue gas duct of a desulfurization tower as described in claim 5, characterized in that: The bottom of the smoke outlet is provided with an arc-shaped condensation plate, and there are multiple condensation plates. The ends of the condensation plates are cylindrical. The air outlet of the second fan is connected to a housing, and the housing is in communication with the condensation plates.

7. A desulfurization tower flue gas duct as described in claim 6, characterized in that: The smoke inlet pipe, the smoke outlet pipe, and the housing are provided with observation windows.