Multi-range ammonia spraying structure of smoke exhaust pipeline

Abstract

The utility model relates to the technical field of flue gas treatment, in particular to a multi-range ammonia spraying structure of a smoke exhaust pipeline, which comprises an ammonia spraying cylinder, a placing groove arranged at the upper end of the ammonia spraying cylinder, a threaded ring mounted on the ammonia spraying cylinder in a threaded manner, an ammonia water storage box placed inside the placing groove, and a water pump arranged below the ammonia water storage box. The water pump is connected with the water outlet end of the ammonia water storage box through a pipeline, fixing rods are symmetrically and fixedly installed on the side wall of the water pump and fixedly installed on the ammonia spraying barrel, and a water outlet pipe is fixedly installed at the lower end of the water pump; drainage mechanisms are symmetrically arranged on the side wall of the ammonia spraying cylinder; ammonia water in the ammonia water storage box can be pumped out under the action of the water pump and then sprayed out through the water outlet pipe, the ammonia water falls on the drainage disc after passing through the water outlet pipe and then forms a water curtain after being drained by the drainage disc, the water curtain is mixed with smoke in the smoke exhaust pipeline for denitration, and the ammonia water is swung under the rotation of the drainage disc. The ammonia water is denser in the smoke exhaust pipeline, and the mixed denitration effect of the ammonia water and the smoke is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a multi-range ammonia spraying structure for a smoke exhaust pipe. Background Art

[0002] Nitrogen oxides are one of the atmospheric pollutants, mainly including nitric oxide and nitrogen dioxide. Their emissions can cause environmental problems such as acid rain, photochemical smog, and haze, and can also have adverse effects on human health.

[0003] Common ammonia injection devices have problems such as uneven ammonia distribution and insufficient mixing with flue gas, resulting in poor denitrification effect. Some equipment lacks effective design in the injection and diffusion of ammonia, and cannot fully utilize ammonia for denitrification reaction, affecting the denitrification efficiency and quality. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a multi-range ammonia spray structure for the smoke exhaust duct, which solves the problems of uneven ammonia distribution and insufficient mixing with flue gas in common ammonia injection devices, resulting in poor denitrification effect. Some equipment lacks effective design in the injection and diffusion of ammonia, and cannot fully utilize ammonia for denitrification reaction, affecting the technical problems of denitrification efficiency and quality.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A multi-range ammonia spraying structure for a smoke exhaust pipe includes an ammonia spraying cylinder, a placement groove is formed on the upper end of the ammonia spraying cylinder, a threaded ring is threadedly mounted on the ammonia spraying cylinder, an ammonia solution storage tank is placed inside the placement groove, a water pump is provided below the ammonia solution storage tank, the water pump is connected to the water outlet of the ammonia solution storage tank via a pipe, fixing rods are symmetrically fixedly mounted on the side wall of the water pump, two fixing rods are fixedly mounted on the ammonia spraying cylinder, and a water outlet pipe is fixedly mounted on the lower end of the water pump;

[0009] A drainage mechanism is symmetrically arranged on the side wall of the ammonia spray cylinder;

[0010] The drainage mechanism includes an L-shaped rod, two L-shaped rods are symmetrically fixed on the side wall of the ammonia spray cylinder, and limiting grooves are provided on the opposite ends of the two L-shaped rods. A drainage plate is provided between the two L-shaped rods;

[0011] Wherein, a fixing ring is fixedly installed on the circumferential surface of the drainage disc.

[0012] Preferably, a driving motor is fixedly installed between the two L-shaped rods, a fixed shaft is installed on the output end of the driving motor, and the fixed shaft is fixedly connected to the drainage plate.

[0013] Preferably, arc-shaped bars are fixedly installed evenly and equidistantly on the side wall of the ammonia spray cylinder, and slots are provided inside the three arc-shaped bars.

[0014] Preferably, the three slots are each provided with an interference strip on their side walls, the three interference strips are each fixedly mounted with a wedge strip on their side walls, and the three wedge strips are respectively inserted into the three slots.

[0015] Preferably, vertical blocks are fixedly mounted on the upper ends of the three wedge-shaped bars, springs are fixedly mounted on the side walls of the three vertical blocks, and the three springs are fixedly connected to the three arc-shaped bars respectively.

[0016] (3) Beneficial effects

[0017] 1. Through the design of the ammonia spray cylinder, threaded ring, arc-shaped strip, slot, wedge-shaped strip and vertical block, the threaded ring will move downward on the ammonia spray cylinder under the rotation of the threaded ring, and the movement of the threaded ring will squeeze the three wedge-shaped strips. At this time, the three wedge-shaped strips will move outward inside the three slots, and the movement of the three slots will drive the three vertical blocks to move accordingly, and the three springs will be compressed accordingly. At the same time, the three interference strips will move outward with the three arc-shaped strips, thereby completing the interference and fixation with the inner wall of the smoke exhaust pipe, making the equipment more convenient to install and disassemble during use, and suitable for smoke exhaust pipes of any specifications, with a wider range of applications;

[0018] 2. Through the design of the ammonia storage tank, water pump, water outlet pipe, drainage plate, drive motor and fixed shaft, the ammonia inside the ammonia storage tank will be pumped out by the water pump, and then sprayed out through the water outlet pipe. After passing through the water outlet pipe, the ammonia will fall on the drainage plate, and then form a water curtain after drainage by the drainage plate, which will be mixed with the flue gas in the exhaust pipe for denitrification. During denitrification, the drive motor can also be started, and the fixed shaft will be driven to rotate by the drive motor, and the rotation of the fixed shaft will drive the drainage plate to rotate accordingly. The rotation of the drainage plate will swing the ammonia, making the ammonia more dense in the exhaust pipe, further enhancing the denitrification effect of its mixing with the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0021] Figure 2This is an exploded structural diagram of the ammonia storage tank connection of the utility model;

[0022] Figure 3 This is a diagram of the connection structure of the drainage plate of the present utility model;

[0023] Figure 4 This is a diagram of the arc-shaped bar connection structure of the present utility model.

[0024] Legend: 11. Ammonia spray cylinder; 12. Placement groove; 13. Threaded ring; 14. Ammonia storage tank; 15. Water pump; 16. Fixing rod; 17. Water outlet pipe; 21. L-shaped rod; 22. Limiting groove; 23. Drainage plate; 24. Fixing ring; 25. Drive motor; 26. Fixed shaft; 31. Arc bar; 32. Slot; 33. Interference bar; 34. Wedge bar; 35. Vertical block; 36. Spring. DETAILED DESCRIPTION

[0025] The embodiments of the present application provide a multi-range ammonia spraying structure for a smoke exhaust duct, effectively solving the problems of uneven ammonia distribution and insufficient mixing with flue gas in common ammonia injection devices, resulting in poor denitrification effect. Some devices lack effective design in terms of ammonia injection and diffusion, and cannot fully utilize ammonia for denitrification reaction, affecting denitrification efficiency and quality. Through the design of the ammonia storage tank, water pump, water outlet pipe, drainage plate, drive motor and fixed shaft, the ammonia inside the ammonia storage tank is pumped out by the water pump and then sprayed out through the water outlet pipe. After passing through the water outlet pipe, the ammonia will fall on the drainage plate, and then form a water curtain after being drained by the drainage plate, which is mixed with the flue gas in the smoke exhaust duct for denitrification. During denitrification, the drive motor can also be started. Under the action of the drive motor, the fixed shaft will be driven to rotate. The rotation of the fixed shaft will drive the drainage plate to rotate accordingly. The rotation of the drainage plate will swing the ammonia, making the ammonia more dense in the smoke exhaust duct, further enhancing the denitrification effect of its mixing with the flue gas.

[0026] Example

[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the technical solution in the embodiment of the present application is to effectively solve the problems of uneven distribution of ammonia water and insufficient mixing with flue gas in common ammonia water injection devices, resulting in poor denitrification effect. Some equipment lacks effective design in the injection and diffusion of ammonia water, and cannot fully utilize ammonia water for denitrification reaction, affecting the denitrification efficiency and quality. The overall idea is as follows: a multi-range ammonia injection structure for a smoke exhaust pipe, comprising an ammonia injection cylinder 11, a placement groove 12 is provided on the upper end of the ammonia injection cylinder 11, a threaded ring 13 is threadedly installed on the ammonia injection cylinder 11, an ammonia water storage tank 14 is placed inside the placement groove 12, a water pump 15 is provided below the ammonia water storage tank 14, the water pump 15 is connected to the water outlet end of the ammonia water storage tank 14 through a pipeline, and fixed rods 16 are symmetrically fixedly installed on the side wall of the water pump 15, and the two fixed rods 16 are fixedly installed on the ammonia injection cylinder 11, and a water outlet pipe 17 is fixedly installed on the lower end of the water pump 15;

[0028] A drainage mechanism is symmetrically provided on the side wall of the ammonia spray cylinder 11;

[0029] The drainage mechanism includes an L-shaped rod 21, two L-shaped rods 21 are symmetrically fixed on the side wall of the ammonia spray cylinder 11, and a limiting groove 22 is provided on the opposite ends of the two L-shaped rods 21. A drainage plate 23 is provided between the two L-shaped rods 21, and a fixing ring 24 is fixedly installed on the circumferential surface of the drainage plate 23. A driving motor 25 is fixedly installed between the two L-shaped rods 21, and a fixed shaft 26 is installed on the output end of the driving motor 25. The fixed shaft 26 is fixedly connected to the drainage plate 23. When the equipment is installed, the water pump 15 can be started at this time. Under the action of the water pump 15, the ammonia stored in the water will be pumped into the water. The ammonia water inside the box 14 is extracted and then sprayed out through the water outlet pipe 17. After passing through the water outlet pipe 17, the ammonia water will fall on the drainage plate 23, and then form a water curtain after being drained by the drainage plate 23, and is mixed with the flue gas in the smoke exhaust pipe for denitrification. During denitrification, the drive motor 25 can also be started. Under the action of the drive motor 25, the fixed shaft 26 will be driven to rotate, and the rotation of the fixed shaft 26 will drive the drainage plate 23 to rotate accordingly. Under the rotation of the drainage plate 23, the ammonia water will be swung, making the ammonia water more dense in the smoke exhaust pipe, further enhancing the denitrification effect of the ammonia water mixed with the flue gas.

[0030] The side wall of the ammonia spray cylinder 11 is evenly and equidistantly fixed with arc-shaped strips 31, and slots 32 are opened inside the three arc-shaped strips 31. The side walls of the three slots 32 are provided with interference strips 33, and the side walls of the three interference strips 33 are fixed with wedge-shaped strips 34. The three wedge-shaped strips 34 are respectively inserted into the three slots 32. The upper ends of the three wedge-shaped strips 34 are fixedly installed with vertical blocks 35. The side walls of the three vertical blocks 35 are fixedly installed with springs 36. The three springs 36 are respectively fixedly connected to the three arc-shaped strips 31. When in use, the device can be placed on the exhaust end of the smoke exhaust pipe first, and then the threaded ring 13 can be rotated on the ammonia spray cylinder 11. Since the two are threadedly connected, the threaded ring 13 will move downward on the ammonia spray cylinder 11 under the rotation of the threaded ring 13, and the three wedge strips 34 will be squeezed under the movement of the threaded ring 13. At this time, the three wedge strips 34 will move outward inside the three slots 32, and the movement of the three slots 32 will drive the three vertical blocks 35 to move accordingly, and the three springs 36 will be compressed accordingly. At the same time, the three interference strips 33 will move outward with the three arc strips 31, thereby completing the interference fixation with the inner wall of the smoke exhaust pipe, making the equipment more convenient to install and disassemble during use, and suitable for smoke exhaust pipes of any specifications, with a wider range of applications.

[0031] In response to the problems existing in the prior art, the present invention provides a multi-range ammonia spraying structure for a smoke exhaust duct. Through the design of an ammonia storage tank 14, a water pump 15, a water outlet pipe 17, a drainage plate 23, a drive motor 25 and a fixed shaft 26, the ammonia inside the ammonia storage tank 14 will be pumped out by the water pump 15, and then sprayed out through the water outlet pipe 17. After passing through the water outlet pipe 17, the ammonia will fall on the drainage plate 23, and then form a water curtain after being drained by the drainage plate 23, which is mixed with the flue gas in the smoke exhaust duct for denitrification. During denitrification, the drive motor 25 can also be started. Under the action of the drive motor 25, the fixed shaft 26 will be driven to rotate, and the rotation of the fixed shaft 26 will drive the drainage plate 23 to rotate accordingly. Under the rotation of the drainage plate 23, the ammonia will be swung, making the ammonia more dense in the smoke exhaust duct, further enhancing the denitrification effect of the ammonia mixed with the flue gas.

[0032] Working principle:

[0033] In the first step, when using, the device can be placed on the air outlet end of the smoke exhaust pipe, and then the threaded ring 13 can be rotated on the ammonia spray cylinder 11. Since the two are threadedly connected, the rotation of the threaded ring 13 will move downward on the ammonia spray cylinder 11, and the movement of the threaded ring 13 will squeeze the three wedge strips 34. At this time, the three wedge strips 34 will move outward inside the three slots 32, and the movement of the three slots 32 will drive the three vertical blocks 35 to move accordingly, and the three springs 36 will be compressed accordingly. At the same time, the three interference strips 33 will move outward with the three arc strips 31, thereby completing the interference fixation with the inner wall of the smoke exhaust pipe, making the device more convenient to install and disassemble during use, and suitable for smoke exhaust pipes of any specifications, with a wider range of applications;

[0034] In the second step, when the equipment is installed, the water pump 15 can be started. Under the action of the water pump 15, the ammonia water inside the ammonia storage tank 14 will be pumped out and then sprayed out through the outlet pipe 17. After passing through the outlet pipe 17, the ammonia water will fall on the drainage plate 23, and then form a water curtain after being drained by the drainage plate 23, which is mixed with the flue gas in the smoke exhaust pipe for denitrification. During denitrification, the drive motor 25 can also be started. Under the action of the drive motor 25, the fixed shaft 26 will be driven to rotate, and the rotation of the fixed shaft 26 will drive the drainage plate 23 to rotate accordingly. Under the rotation of the drainage plate 23, the ammonia water will be swung, making the ammonia water more dense in the smoke exhaust pipe, further enhancing the denitrification effect of its mixing with the flue gas.

[0035] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A multi-range ammonia spraying structure for a smoke exhaust pipe, comprising an ammonia spraying cylinder (11), wherein a placement groove (12) is provided at the upper end of the ammonia spraying cylinder (11), characterized in that: A threaded ring (13) is threadedly mounted on the ammonia spray cylinder (11), an ammonia storage tank (14) is placed inside the placement groove (12), a water pump (15) is provided below the ammonia storage tank (14), and the water pump (15) is connected to the water outlet of the ammonia storage tank (14) through a pipeline; Wherein, fixed rods (16) are symmetrically fixedly installed on the side wall of the water pump (15), and the two fixed rods (16) are fixedly installed on the ammonia spray cylinder (11), and a water outlet pipe (17) is fixedly installed at the lower end of the water pump (15); A drainage mechanism is symmetrically provided on the side wall of the ammonia spray cylinder (11); The drainage mechanism comprises an L-shaped rod (21), wherein two L-shaped rods (21) are symmetrically fixed on the side wall of the ammonia spray cylinder (11), and limiting grooves (22) are provided on opposite ends of the two L-shaped rods (21).

2. The multi-range ammonia injection structure of the smoke exhaust duct according to claim 1, characterized in that: A drainage plate (23) is provided between the two L-shaped rods (21); Wherein, a fixing ring (24) is fixedly mounted on the circumferential surface of the drainage disc (23).

3. The multi-range ammonia injection structure of the smoke exhaust duct according to claim 2, characterized in that: A driving motor (25) is fixedly installed between the two L-shaped rods (21); A fixed shaft (26) is installed on the output end of the driving motor (25), and the fixed shaft (26) is fixedly connected to the drainage disc (23).

4. The multi-range ammonia injection structure of the smoke exhaust duct according to claim 1, characterized in that: The side wall of the ammonia spray cylinder (11) is fixedly provided with arc-shaped strips (31) at even intervals; Wherein, slots (32) are provided inside the three arc-shaped bars (31).

5. The multi-range ammonia injection structure of the smoke exhaust duct according to claim 4, characterized in that: The side walls of the three slots (32) are all provided with a resistance strip (33); Wherein, a wedge-shaped strip (34) is fixedly mounted on the side walls of the three abutting strips (33), and the three wedge-shaped strips (34) are respectively inserted into the three slots (32).

6. The multi-range ammonia injection structure of the smoke exhaust duct according to claim 5, characterized in that: The upper ends of the three wedge-shaped strips (34) are all fixedly mounted with vertical blocks (35); Wherein, springs (36) are fixedly mounted on the side walls of the three vertical blocks (35), and the three springs (36) are fixedly connected to the three arc-shaped bars (31) respectively.

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