Flue gas denitration ammonia spraying equipment
By designing the transmission mechanism and deflector movement mechanism driven by servo motor in the flue gas de-pinning ammonia spraying equipment, the problem of insufficient mixing of flue gas and ammonia water in existing equipment is solved, and more efficient contact and reaction between ammonia water and flue gas is achieved, improving the denitrification effect and maintaining stability.
Patent Information
- Application Number
- CN202420974172.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing flue gas de-spraying equipment cannot fully mix the flue gas with the sprayed ammonia water, resulting in a decrease in denitrification efficiency.
A flue gas discharge ammonia spraying device is designed. The servo motor drives the rotation of the active rod and the rotating disc, which drives the fixed convex rod and the connecting rod to move. The active incomplete gear and the active rack are meshed with each other. The flow direction of the flue gas is controlled by the movement of the deflector to ensure that the ammonia water is evenly distributed in the flue gas.
By evenly distributing ammonia water, the contact and reaction efficiency of ammonia water with nitrogen oxides in the flue gas is improved, and the denitrification effect is improved. The movement ability of the deflector makes the equipment flexibly adapt to different conditions and maintains the stability of the denitrification effect.
Smart Images
Figure CN222586078U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of denitrification equipment, in particular to a flue gas denitrification ammonia spraying equipment. Background Art
[0002] Sulfur oxides and nitrogen oxides are the main sources of air pollution and an important cause of photochemical smog and acid rain. The harm to the human body is mainly manifested in damage to the respiratory tract. Industrial waste flue gas contains a large amount of sulfur dioxide and nitrogen oxides. If desulfurization and denitrification are not carried out, it will cause harm to the environment. The working principle of flue gas denitrification ammonia spraying technology is to use ammonia water to react with nitrogen oxides in the flue gas for selective catalytic reduction to generate nitrogen and water vapor, thereby reducing the emission of nitrogen oxides. However, the existing flue gas denitrification ammonia spraying equipment cannot fully mix the flue gas with the sprayed ammonia water. If the ammonia water and the flue gas cannot be fully mixed, then the ammonia water and the nitrogen oxides (NOx) in the flue gas cannot fully react chemically, resulting in a decrease in denitrification efficiency. Therefore, those skilled in the art provide a flue gas denitrification ammonia spraying equipment to solve the problems raised in the above background technology. Utility Model Content
[0003] The utility model aims to provide a flue gas denitrification ammonia injection device to solve the problems raised in the above background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A flue gas degassing ammonia spraying device comprises a flue gas degassing ammonia spraying body, one side of the outer end of the flue gas degassing ammonia spraying body is fixedly connected to a servo motor, the other side of the outer end of the flue gas degassing ammonia spraying body is fixedly connected to an ammonia storage box, the output end of the servo motor is fixedly connected to an active rod, the other end of the active rod is fixedly connected to a rotating disk, the other end of the rotating disk is fixedly connected to a fixed convex rod, and the outer side of the fixed convex rod is slidably connected to a connecting rod.
[0006] Preferably, a fixed convex rod moving groove is opened on the inner side of the connecting rod, the end of the connecting rod away from the fixed convex rod is rotatably connected to the rotating rod, the end of the connecting rod close to the rotating rod is fixedly connected to an active incomplete gear, both ends of the inner wall of the flue gas denitrification ammonia spray body are fixedly connected to fixed blocks, a sliding rod is fixedly connected between the two groups of fixed blocks, and the outer side of the sliding rod is slidably connected to an active rack.
[0007] Preferably, the active incomplete gear and the active rack are meshed with each other, a plurality of sets of driven racks are fixedly connected to the upper end of the active rack, a driven rod is rotatably connected to the upper side of the driven rack, one end of the driven rod is fixedly connected to the driven incomplete gear, the other end of the driven rod is fixedly connected to the guide plate, and the driven incomplete gear and the driven rack are meshed with each other.
[0008] Preferably, an electric heating wire is fixedly connected to the inner wall of one end of the flue gas denitrification ammonia spray body away from the ammonia storage box, a water pump is fixedly connected to the lower wall of the ammonia storage box, the other end of the water pump is fixedly connected to an ammonia delivery pipe, and the other end of the ammonia delivery pipe is fixedly connected to an ammonia atomizing nozzle pipe.
[0009] Preferably, one end of the ammonia atomizing nozzle pipe is fixedly connected to multiple groups of ammonia atomizing nozzles, a smoke inlet is opened at one end of the smoke degassing ammonia spray body close to the ammonia atomizing nozzle, and a smoke outlet is opened at one end of the smoke degassing ammonia spray body close to the heating wire.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. When the servo motor is started, the servo motor drives the active rod to rotate, the active rod drives the rotating disk to rotate, the rotating disk drives the fixed convex rod to rotate, the fixed convex rod drives the connecting rod to rotate, the fixed convex rod moves in the fixed convex rod moving groove inside the connecting rod, the connecting rod rotates and moves on the rotating rod, the connecting rod drives the active incomplete gear to reciprocate, the reciprocating rotation of the active incomplete gear drives the active rack to move left and right on the sliding rod, the left and right movement of the active rack drives multiple groups of driven racks at the upper end to move left and right, the driven rack drives the driven incomplete gear to rotate on the driven rod, and the driven rack drives the driven incomplete gear to rotate on the driven rod. The movable rod drives the guide plate to move left and right. By moving the guide plate, the flow direction of the flue gas can be controlled so that the atomized ammonia water can be more evenly distributed in the flue gas. The uniform distribution helps to improve the efficiency and integrity of the reaction, reduce dead corners or areas of insufficient reaction, and the movement of the guide plate can create more ideal fluid dynamic conditions, prompting the atomized ammonia water particles to contact and react more fully with the nitrogen oxides in the flue gas, thereby improving the denitrification effect. The mobility of the guide plate enables the flue gas denitrification ammonia injection equipment to flexibly adapt to different operating conditions and flue gas flow changes, maintain the stability of the denitrification effect, and maintain efficient denitrification performance even when the flue gas flow or load changes.
[0011] 2. The flue gas enters the flue gas denitrification ammonia spray body from the flue gas inlet of the flue gas denitrification ammonia spray body. The water pump transports the ammonia in the ammonia storage tank to the ammonia atomizing nozzle pipe through the ammonia delivery pipe. The ammonia is then atomized and sprayed out from the ammonia atomizing nozzle pipe through the ammonia atomizing nozzle. The atomizing nozzle can spray the ammonia evenly into the flue gas. The ammonia can form fine droplets, which increases its contact surface area with the flue gas and improves the mixing efficiency between the ammonia and the flue gas. The electric heating wire heats the gas mixed with the ammonia and the flue gas, and increases the reaction rate in the ammonia spray equipment to improve the denitrification efficiency, which helps to convert nitrogen oxides into harmless nitrogen and water vapor faster. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The figure is a schematic diagram of the structure of a flue gas denitrification ammonia injection equipment.
[0013] Figure 2 The present invention is a schematic cross-sectional view of the structure of a flue gas denitrification ammonia injection device.
[0014] Figure 3 The present invention is a schematic diagram of the structure of a transmission mechanism in a flue gas denitrification ammonia injection device.
[0015] Figure 4 Ammonia injection equipment for flue gas denitrification Figure 2 A is a magnified schematic diagram of the structure.
[0016] In the figure: 1. flue gas degassing ammonia spray body, 2. servo motor, 3. ammonia storage box, 4. active rod, 5. rotating disk, 6. fixed protruding rod, 7. connecting rod, 8. fixed protruding rod moving groove, 9. rotating rod, 10. active incomplete gear, 11. fixed block, 12. sliding rod, 13. active rack, 14. driven rack, 15. driven incomplete gear, 16. driven rod, 17. guide plate, 18. heating wire, 19. ammonia delivery pipe, 20. ammonia atomizing nozzle pipe, 21. ammonia atomizing nozzle, 22. flue gas inlet, 23. flue gas outlet, 24. water pump. DETAILED DESCRIPTION
[0017] See also Figures 1 to 4In the embodiment of the utility model, a flue gas degassing ammonia spraying device comprises a flue gas degassing ammonia spraying body 1, one side of the outer end of the flue gas degassing ammonia spraying body 1 is fixedly connected to a servo motor 2, the other side of the outer end of the flue gas degassing ammonia spraying body 1 is fixedly connected to an ammonia storage box 3, the output end of the servo motor 2 is fixedly connected to an active rod 4, the other end of the active rod 4 is fixedly connected to a rotating disk 5, the other end of the rotating disk 5 is fixedly connected to a fixed convex rod 6, the outer side of the fixed convex rod 6 is slidably connected to a connecting rod 7, the inner side of the connecting rod 7 is provided with a fixed convex rod moving groove 8, the end of the connecting rod 7 away from the fixed convex rod 6 is rotatably connected to a rotating rod 9, the end of the connecting rod 7 close to the rotating rod 9 is fixedly connected to an active incomplete gear 10, both ends of the inner wall of the flue gas degassing ammonia spraying body 1 are fixedly connected to fixed blocks 11, a sliding rod 12 is fixedly connected between the two groups of fixed blocks 11, the outer side of the sliding rod 12 is slidably connected to an active rack 13, the active incomplete gear 10 and The active racks 13 mesh with each other, and the upper ends of the active racks 13 are fixedly connected to a plurality of sets of driven racks 14, and the upper sides of the driven racks 14 are rotatably connected to driven rods 16, and one end of the driven rod 16 is fixedly connected to a driven incomplete gear 15, and the other end of the driven rod 16 is fixedly connected to a guide plate 17, and the driven incomplete gear 15 and the driven racks 14 mesh with each other, and the inner wall of the end of the flue gas denitrification ammonia spraying body 1 away from the ammonia storage box 3 is fixedly connected to an electric heating wire 18, A water pump 24 is fixedly connected to the lower wall of the ammonia storage box 3, and the other end of the water pump 24 is fixedly connected to an ammonia delivery pipe 19, and the other end of the ammonia delivery pipe 19 is fixedly connected to an ammonia atomizing nozzle pipe 20, and one end of the ammonia atomizing nozzle pipe 20 is fixedly connected to multiple groups of ammonia atomizing nozzles 21, and a smoke inlet 22 is provided at one end of the smoke degassing ammonia spray body 1 close to the ammonia atomizing nozzle 21, and a smoke outlet 23 is provided at one end of the smoke degassing ammonia spray body 1 close to the electric heating wire 18.
[0018] The working principle of the utility model is as follows: the flue gas enters the flue gas degassing ammonia spraying body from the flue gas inlet, the water pump transports the ammonia in the ammonia storage box to the ammonia atomizing nozzle pipe through the ammonia delivery pipe, and the ammonia is then sprayed out from the ammonia atomizing nozzle pipe through the ammonia atomizing nozzle for atomization. The atomizing nozzle can spray the ammonia into the flue gas evenly, and the ammonia can form fine droplets, thereby increasing the surface area of the ammonia in contact with the flue gas and improving the mixing efficiency between the ammonia and the flue gas. The servo motor is started, the servo motor drives the active rod to rotate, the active rod drives the rotating disk to rotate, the rotating disk drives the fixed convex rod to rotate, the fixed convex rod drives the linkage rod to rotate, the fixed convex rod moves in the fixed convex rod moving groove on the inner side of the linkage rod, the linkage rod rotates and moves on the rotating rod, the linkage rod drives the active incomplete gear to reciprocate, the reciprocating rotation of the active incomplete gear drives the active rack to move left and right on the sliding rod, and the left and right movement of the active rack drives the upper multi- The driven rack of the group moves left and right, and the driven rack drives the driven incomplete gear to rotate on the driven rod, and the driven rod drives the guide plate to move left and right. By moving the guide plate, the flow direction of the flue gas can be controlled, so that the atomized ammonia water can be more evenly distributed in the flue gas. The uniform distribution helps to improve the efficiency and integrity of the reaction, reduce dead corners or areas of insufficient reaction, and the movement of the guide plate can create more ideal fluid dynamic conditions, so that the atomized ammonia particles and the nitrogen oxides in the flue gas can contact and react more fully, thereby improving the denitrification effect. The activity of the guide plate enables the flue gas denitrification ammonia spraying equipment to flexibly adapt to different operating conditions and flue gas flow changes, maintain the stability of the denitrification effect, and maintain efficient denitrification performance even when the flue gas flow or load changes. The electric heating wire heats the gas mixed with ammonia water and flue gas to increase the reaction rate in the ammonia spraying equipment to improve the denitrification efficiency, which helps to convert nitrogen oxides into harmless nitrogen and water vapor faster.
[0019] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0020] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A flue gas denitrification ammonia spraying device, comprising a flue gas denitrification ammonia spraying body (1), characterized in that: A servo motor (2) is fixedly connected to one side of the outer end of the smoke degassing ammonia spray body (1), and an ammonia storage box (3) is fixedly connected to the other side of the outer end of the smoke degassing ammonia spray body (1). An active rod (4) is fixedly connected to the output end of the servo motor (2), and a rotating disk (5) is fixedly connected to the other end of the active rod (4). A fixed convex rod (6) is fixedly connected to the other end of the rotating disk (5), and a connecting rod (7) is slidably connected to the outer side of the fixed convex rod (6); a fixed convex rod moving groove (8) is provided on the inner side of the connecting rod (7), and the end of the connecting rod (7) away from the fixed convex rod (6) is rotatably connected to the rotating rod (9), and the end of the connecting rod (7) close to the rotating rod (9) is fixedly connected to an active incomplete gear (10). Both ends of the inner wall of the flue gas denitrification ammonia spraying body (1) are fixedly connected with fixed blocks (11), and a sliding rod (12) is fixedly connected between the two groups of fixed blocks (11); the outer side of the sliding rod (12) is slidably connected with an active rack (13), the active incomplete gear (10) and the active rack (13) are meshed with each other, and the upper end of the active rack (13) is fixedly connected with multiple groups of driven racks (14); the upper side of the driven rack (14) is rotatably connected with a driven rod (16), one end of the driven rod (16) is fixedly connected with a driven incomplete gear (15), and the other end of the driven rod (16) is fixedly connected with a guide plate (17), and the driven incomplete gear (15) and the driven rack (14) are meshed with each other.
2. The flue gas denitrification ammonia injection equipment according to claim 1, characterized in that: An electric heating wire (18) is fixedly connected to the inner wall of one end of the flue gas denitrification ammonia spraying body (1) away from the ammonia water storage box (3), and a water pump (24) is fixedly connected to the lower wall of the ammonia water storage box (3).
3. The flue gas denitrification ammonia injection equipment according to claim 2, characterized in that: The other end of the water pump (24) is fixedly connected to an ammonia water delivery pipe (19), the other end of the ammonia water delivery pipe (19) is fixedly connected to an ammonia water atomizing nozzle pipe (20), and one end of the ammonia water atomizing nozzle pipe (20) is fixedly connected to a plurality of groups of ammonia water atomizing nozzles (21).
4. The flue gas denitrification ammonia injection equipment according to claim 1, characterized in that: The end of the smoke detoxification ammonia spray body (1) close to the ammonia atomizing nozzle (21) is provided with a smoke inlet (22), and the end of the smoke detoxification ammonia spray body (1) close to the electric heating wire (18) is provided with a smoke outlet (23).