Desulfurization tower inlet flue gas flow uniformity guide structure

Abstract

The utility model belongs to environmental protection technical field, concretely relates to a desulfurizing tower entrance flue gas uniform flow flow guide structure, including desulfurizing tower body, the surface of one side of desulfurizing tower body installs into the smoke pipe mouth, the inner wall surface welding fixed ring of into the smoke pipe mouth, the surface of fixed ring sets up limit slot, the surface of limit slot is connected with guide column, the surface of guide column is inserted in the slot of the surface of the multiple aperture plate and set up and is inserted into the round groove of the one side of the guide frame that limit slot surface is embeddedly connected, the inner wall surface welding flow guide plate of guide frame, the utility model, through the cooperation of the multiple aperture plate and the flow guide plate of the guide frame that are connected in the inner wall of the smoke pipe mouth and install, the flow of the flue gas that enters into the smoke pipe mouth is corrected, and the entering flue gas is refined and is uniformly flowed, avoids the flue gas directly into the desulfurizing tower body and causes the damage of the component in it, simultaneously avoids the inhomogeneous airflow to influence the absorption effect of flue gas and absorbent.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection technology, specifically relating to a flue gas equalization and diversion structure at the inlet of a desulfurization tower. Background Technology

[0002] A desulfurization tower is a core environmental protection device used to remove sulfides (mainly sulfur dioxide) from industrial waste gas. It is widely used in industries that emit sulfur-containing flue gas, such as thermal power, steel, and chemical industries.

[0003] Its core function is to allow sulfur-containing flue gas to fully react with specific absorbents (such as limestone slurry, ammonia water, etc.) through "gas-liquid contact" to convert harmful sulfides into harmless or recyclable solid substances (such as gypsum), thereby achieving flue gas emission standards and reducing environmental pollution such as acid rain and smog.

[0004] Existing desulfurization towers typically use a direct threaded connection for the flue gas inlet. When the inlet connection section is directly connected to the desulfurization tower, the flue gas entering the tower will cause uneven airflow distribution, resulting in a reduced contact area between the desulfurizing agent and the flue gas, incomplete reaction, and thus reduced desulfurization efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a flue gas equalization and flow guiding structure for the inlet of a desulfurization tower, which aims to solve the problem that the existing desulfurization tower inlet usually adopts a direct threaded connection type inlet. When the inlet connection section is directly connected to the desulfurization tower, the flue gas entering the tower will have uneven airflow distribution, resulting in a reduced contact area between the desulfurizing agent and the flue gas, insufficient reaction, and thus reduced desulfurization efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flue gas equalization and diversion structure for a desulfurization tower inlet, comprising a desulfurization tower body, an inlet pipe installed on one side surface of the desulfurization tower body, a fixing ring welded to the inner wall surface of the inlet pipe, a limiting groove formed on the surface of the fixing ring, a guide column connected to the surface of the limiting groove, the guide column inserted into a slot formed on the surface of a perforated plate, the perforated plate fitted into the surface of the limiting groove, the guide column fitted into a circular groove formed on one side of a flow guide frame, a flow guide plate welded to the inner wall surface of the flow guide frame, a connecting ear welded to the other side surface of the flow guide frame, a trapezoidal block connected to the surface of the connecting ear, the trapezoidal block slidably connected to a trapezoidal groove, the trapezoidal groove being formed on the inner wall of the inlet pipe, a threaded pipe threadedly connected to the inner wall surface of the inlet pipe, the threaded pipe movably abutting against the surface of the connecting ear.

[0007] As a preferred embodiment of the flue gas flow equalization and guiding structure at the inlet of the desulfurization tower according to this utility model, the four guide columns are distributed in a ring at equal intervals on the surface of the fixed ring.

[0008] As a preferred embodiment of the flue gas flow equalization and guiding structure at the inlet of the desulfurization tower according to this utility model, the slot is a circular through groove whose shape and size are adapted to the guide column, and the four slots are distributed in a ring at equal intervals on the surface of the perforated plate.

[0009] As a preferred embodiment of the flue gas equalization and flow guiding structure at the inlet of the desulfurization tower according to this utility model, the guide plate is a semi-circular structure, and its shape and size are adapted to the cylindrical cavity of the inner wall of the guide frame.

[0010] As a preferred embodiment of the flue gas flow equalization and guiding structure at the inlet of the desulfurization tower according to this utility model, the connecting ear is an "L"-shaped integrated structure, and the three connecting ears are distributed in a ring on the surface of the guide frame.

[0011] As a preferred embodiment of the flue gas equalization and diversion structure at the inlet of the desulfurization tower according to this utility model, the surface of the threaded pipe is provided with a threaded structure, the shape and size of which are adapted to the threaded groove on the inner wall of the opening end of the flue gas inlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By combining the perforated plate connected to the inner wall of the flue gas inlet and the guide plate installed on the guide frame, the flow direction of the flue gas entering from the flue gas inlet is corrected, and the flue gas is refined and evenly distributed to prevent the flue gas from directly entering the desulfurization tower body and causing damage to the internal components. At the same time, it avoids uneven airflow from affecting the absorption effect of flue gas and absorbent.

[0014] Furthermore, with the combination of detachable perforated plates and flow guides, after long-term use and component wear and aging, the aged perforated plates and flow guides can be removed and replaced separately, thereby reducing maintenance costs. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model;

[0018] Figure 3 This is an exploded structural diagram of the perforated plate and flow guide frame of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the smoke inlet section of this utility model.

[0020] In the diagram: 1. Desulfurization tower body; 2. Flue gas inlet; 3. Fixing ring; 4. Limiting groove; 5. Guide column; 6. Perforated plate; 7. Slot; 8. Circular groove; 9. Flow guide frame; 10. Flow guide plate; 11. Connecting ear; 12. Trapezoidal block; 13. Trapezoidal groove; 14. Threaded pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides the following technical solution: a flue gas equalization and diversion structure for a desulfurization tower inlet, including a desulfurization tower body 1, a flue gas inlet 2 installed on one side surface of the desulfurization tower body 1, a fixing ring 3 welded to the inner wall surface of the flue gas inlet 2, a limiting groove 4 formed on the surface of the fixing ring 3, a guide column 5 connected to the surface of the limiting groove 4, the guide column 5 inserted into a slot 7 formed on the surface of a perforated plate 6, the perforated plate 6 fitted into the surface of the limiting groove 4, the guide column 5 fitted into a circular groove 8 formed on one side of a flow guide frame 9, a flow guide plate 10 welded to the inner wall surface of the flow guide frame 9, and the other side surface of the flow guide frame 9... A welding connecting lug 11 is provided, and a trapezoidal block 12 is connected to the surface of the connecting lug 11. The surface of the trapezoidal block 12 is slidably connected to the trapezoidal groove 13. The trapezoidal groove 13 is opened on the inner wall of the flue gas inlet 2. A threaded pipe 14 is threadedly connected to the inner wall surface of the flue gas inlet 2. The surface of the threaded pipe 14 is movably abutting against the surface of the connecting lug 11. In this design scheme, the desulfurization tower body 1 and the flue gas inlet 2 constitute the main body of the desulfurization tower. A large number of related components are set in the main body of the desulfurization tower. Since they are existing technologies and the core content of this technical solution is irrelevant to them, they will not be described in detail in this technical solution.

[0023] Preferably, four guide posts 5 are distributed in a ring at equal intervals on the surface of the fixing ring 3.

[0024] In practical use, select a perforated plate 6 with an appropriate aperture, and then fit the slot 7 on the surface of the perforated plate 6 onto the guide post 5.

[0025] Preferably, the slot 7 is a circular through slot, the shape and size of which are adapted to the guide post 5, and the four slots 7 are distributed in a ring at equal intervals on the surface of the perforated plate 6.

[0026] In practical use, the slot 7 on the surface of the perforated plate 6 is fitted onto the guide post 5, so that the perforated plate 6 is fitted into the limiting groove 4 on the surface of the fixing ring 3, thereby fixing the position of the perforated plate 6 in the desulfurization tower body 1.

[0027] Preferably, the guide plate 10 has a semi-circular structure, and its shape and size are adapted to the cylindrical cavity inside the guide frame 9.

[0028] In practical use, the inclined guide plate 10 can guide the incoming flue gas, preventing high-speed flue gas from directly impacting the tower wall or internal components, while guiding the flue gas to diffuse evenly into the tower. The flue gas after being guided by the guide plate 10 is also guided by the guide plate 10.

[0029] Preferably, the connecting ear 11 is an "L"-shaped integrated structure, with three connecting ears 11 distributed in a ring on the surface of the guide frame 9.

[0030] In practical use, the connecting ear 11 abuts against the inner wall of the smoke inlet 2 to increase the friction between the guide frame 9 and the contact surface of the smoke inlet 2. At the same time, the threaded tube 14 abuts against the connecting ear 11 to clamp and fix the guide frame 9 between the guide post 5 and the connecting ear 11. In addition, during docking, the trapezoidal block 12 connected to the surface of the connecting ear 11 can be inserted into the trapezoidal groove 13 to ensure that the circular groove 8 opened on the surface of the guide frame 9 can be accurately docked together.

[0031] Preferably, the threaded tube 14 has a threaded structure on its surface, the shape and size of which are adapted to the threaded groove on the inner wall of the opening end of the smoke inlet 2.

[0032] In practical use, rotate the threaded tube 14 so that the threaded structure on its surface rotates towards the fixing ring 3 on the threaded groove on the inner wall of the smoke inlet 2 until the surface of the threaded tube 14 abuts against the surface of the connecting ear 11, so that the guide frame 9 can cooperate with the guide post 5 and the threaded tube 14 to clamp and fix the position of the guide frame 9 in the smoke inlet 2.

[0033] Working principle: When the desulfurization tower body 1 reacts with sulfur-containing flue gas and a specific absorbent to convert harmful sulfides into harmless or recyclable solid substances, a perforated plate 6 with an appropriate pore size is selected. Then, the slot 7 opened on the surface of the perforated plate 6 is fitted onto the guide post 5, so that the perforated plate 6 is fitted into the limiting groove 4 opened on the surface of the fixing ring 3, thereby fixing the position of the perforated plate 6 in the desulfurization tower body 1. After that, the circular groove 8 opened on the surface of the flow guide 9 is fitted onto the guide post 5, thereby fixing the position of the flow guide 9 in the desulfurization tower body 1. At this time, the flow guide plates 10 evenly distributed on the surface of the flow guide 9 are inclined downward.

[0034] After the guide frame 9 is properly fitted and placed, hold the crossbar on the inner wall of the threaded tube 14 and make it abut against the inlet end of the smoke inlet 2. Then rotate the threaded tube 14 so that the threaded structure on its surface rotates in the direction of the fixing ring 3 on the threaded groove on the inner wall of the smoke inlet 2 until the surface of the threaded tube 14 abuts against the surface of the connecting ear 11, so that the guide frame 9 can cooperate with the guide post 5 and the threaded tube 14 to clamp and fix the position of the guide frame 9 in the smoke inlet 2.

[0035] After the flue gas inlet 2 is connected to the flue gas inlet pipe, the desulfurization tower body 1 starts to operate. At this time, the inclined guide plate 10 can guide the incoming flue gas to prevent high-speed flue gas from directly scouring the tower wall or internal components. At the same time, it guides the flue gas to diffuse evenly into the tower. After being guided by the guide plate 10, the flue gas passes through multiple circular holes on the surface of the perforated plate 6, which acts like a "sieve". Through the obstruction and diversion of the perforated plate 6, the flue gas that was originally uneven and turbulent will become stable and form a uniform velocity distribution in the cross-section of the tower.

[0036] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flue gas flow equalization and guiding structure at the inlet of a desulfurization tower, comprising a desulfurization tower body (1), characterized in that: A flue gas inlet (2) is installed on one side of the desulfurization tower body (1). A fixing ring (3) is welded to the inner wall of the flue gas inlet (2). A limiting groove (4) is opened on the surface of the fixing ring (3). A guide column (5) is connected to the surface of the limiting groove (4). The surface of the guide column (5) is inserted into a slot (7) opened on the surface of the perforated plate (6). The perforated plate (6) is fitted and connected to the surface of the limiting groove (4). The surface of the guide column (5) is fitted and connected to a circular groove (8) opened on one side of the flow guide frame (9). Inside the guide frame (9), a guide plate (10) is welded to the inner wall surface, and a connecting ear (11) is welded to the other side surface of the guide frame (9). A trapezoidal block (12) is connected to the surface of the connecting ear (11), and the surface of the trapezoidal block (12) is slidably connected to the trapezoidal groove (13). The trapezoidal groove (13) is opened on the inner wall of the smoke inlet (2). A threaded pipe (14) is threadedly connected to the inner wall surface of the smoke inlet (2), and the surface of the threaded pipe (14) is movably abutting against the surface of the connecting ear (11).

2. The flue gas flow equalization and guiding structure at the inlet of a desulfurization tower according to claim 1, characterized in that: The four guide posts (5) are distributed in a ring at equal intervals on the surface of the fixing ring (3).

3. The flue gas flow equalization and guiding structure at the inlet of a desulfurization tower according to claim 2, characterized in that: The slot (7) is a circular through slot, and its shape and size are adapted to the guide post (5). The four slots (7) are distributed in a ring at equal intervals on the surface of the perforated plate (6).

4. The flue gas flow equalization and guiding structure at the inlet of a desulfurization tower according to claim 1, characterized in that: The guide plate (10) has a semi-circular structure, and its shape and size are adapted to the cylindrical cavity inside the guide frame (9).

5. The flue gas flow equalization and guiding structure at the inlet of a desulfurization tower according to claim 1, characterized in that: The connecting ear (11) is an "L" shaped integrated structure, and the three connecting ears (11) are distributed in a ring on the surface of the guide frame (9).

6. The flue gas flow equalization and guiding structure at the inlet of a desulfurization tower according to claim 1, characterized in that: The threaded pipe (14) has a threaded structure on its surface, and its shape and size are adapted to the threaded groove on the inner wall of the opening end of the smoke inlet (2).

Images