Atomizing and spraying device for flue gas denitrification

Abstract

The utility model relates to the technical field of atomization spraying, and discloses a flue gas denitrification atomization spraying device which comprises a first water pipe, the top of the first water pipe is fixedly connected with a plurality of connecting pipes, the interiors of the connecting pipes are fixedly connected with fixing mechanisms, and each fixing mechanism comprises two square shells. The exterior of the square shell is fixedly connected to the exterior of the connecting pipe, a limiting plate is fixedly connected to the interior of the square shell, a connecting plate is fixedly connected to the exterior of the spraying pipe, and a limiting assembly is rotationally connected to the interior of the connecting plate. According to the spraying device, the rotating plate is pressed by applying force, meanwhile, the spraying pipe is driven to slide into the connecting pipe, then the force applied to the rotating plate is withdrawn, so that the rotating plate rebounds under the action of the force, the limiting plate in the square shell slides into the groove in the outer portion of the rotating plate, and the direction of the spraying head can be adjusted front and back; and in addition, disassembly and maintenance can be independently carried out during maintenance.

Description

Technical Field

[0001] This utility model relates to the field of atomized spraying technology, and in particular to a flue gas denitrification atomized spraying device. Background Technology

[0002] Flue gas denitrification (NOx removal) refers to the use of specific technologies to reduce the emission of nitrogen oxides (NOx) in industrial flue gas, thereby achieving environmental protection and reducing air pollution. Nitrogen oxides are common pollutants in combustion processes, mainly including nitric oxide (NO) and nitrogen dioxide (NO2), which pose significant risks to air quality, human health, and the ecological environment. Atomizing spray devices are equipment that uses nozzles to atomize liquids. Their main function is to increase the contact area between the liquid and gas / solid surfaces by atomizing the liquid into fine droplets, thereby improving the liquid's reaction efficiency, absorption efficiency, and cleaning effect. They are widely used in environmental remediation, industrial production, cooling, and gas purification. Flue gas denitrification atomizing spray devices are environmental protection equipment used for industrial flue gas denitrification, primarily for reducing nitrogen oxide (NOx) emissions from flue gas.

[0003] When a flue gas denitrification atomizing spray device adopts a fixed spray head structure, the spray head is installed in the flue gas flow path. The liquid denitrification agent is transported to the spray head through a pipeline, and the spray head atomizes the liquid into fine droplets, which are then evenly sprayed into the flue gas. The flue gas comes into full contact with the atomized droplets, and nitrogen oxides (NOx) react chemically with the denitrification agent to generate nitrogen and water, thereby achieving the removal of nitrogen oxides from the flue gas.

[0004] In existing technologies, some spraying devices generally use a fixed spray head structure, which prevents the spray direction from being flexibly adjusted according to actual needs. If the installation direction of the spray head does not conform to the optimal spray angle, the spraying effect of the agent will be unsatisfactory, thus affecting the efficiency of flue gas treatment. Furthermore, existing devices typically require disassembly of the entire spraying system for maintenance and spray head replacement, which not only increases the complexity and time cost of maintenance but also affects the overall performance of the equipment. Therefore, a flue gas denitrification atomizing spraying device is proposed to solve the above problems. Utility Model Content

[0005] The present invention proposes a flue gas denitrification atomizing spray device, which aims to improve the problem that some existing devices cannot change the direction of a single spray head.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A flue gas denitrification atomizing spray device includes a water pipe, a plurality of connecting pipes fixedly connected to the top of the water pipe, a fixing mechanism fixedly connected inside the connecting pipe, a spray pipe slidably connected inside the connecting pipe, a leak-proof mechanism fixedly connected to the other end of the spray pipe, and a semi-circular pipe fixedly connected to the outside of the water pipe, with an adjustment mechanism rotatably connected to the outside and inside of the semi-circular pipe.

[0008] The fixing mechanism includes two square shells. The outside of the square shells is fixedly connected to the outside of the connecting pipe. The inside of the square shells is fixedly connected to a limiting plate. The outside of the spray pipe is fixedly connected to a connecting plate. The inside of the connecting plate is rotatably connected to a limiting component.

[0009] As a further description of the above technical solution:

[0010] The limiting component includes a connecting post, the outside of which is fixedly and rotatably connected to the inside of the connecting plate, and a rotating plate is fixedly connected to the outside of the connecting post, the inside of which is slidably connected to the outside of the limiting plate.

[0011] As a further description of the above technical solution:

[0012] The leak-proof mechanism includes a spray head, which is fixedly connected to the outside of the spray pipe. A ring is fixedly connected to the inside of the spray head, and a spring is fixedly connected to the outside of the ring. A blocking block is fixedly connected to the other end of the spring.

[0013] As a further description of the above technical solution:

[0014] The adjusting mechanism includes a spherical tube, the outside of which is rotatably connected to the inside of the semi-circular tube, a second water pipe is fixedly connected to the outside of the spherical tube, and an arc-shaped tube is rotatably connected to the outside of the spherical tube.

[0015] As a further description of the above technical solution:

[0016] The semi-circular tube has multiple bolts connected to its internal threads, and the bolts have external threads connected to the inside of the arc-shaped tube.

[0017] As a further description of the above technical solution:

[0018] The rotating plate is rotatably connected to the inside of the connecting plate, and the connecting plate is slidably connected to the inside of the square shell.

[0019] As a further description of the above technical solution:

[0020] The spring is externally slidably connected to the inside of the spray head, and the inside of the spray head is slidably connected to the outside of the blockage block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by applying force to press the rotating plate, the spray pipe is simultaneously slid into the connecting pipe. Then, the force applied to the rotating plate is withdrawn, causing the rotating plate to spring back under the force. As a result, the limiting plate inside the square shell slides into the groove outside the rotating plate, allowing the direction of the spray head to be adjusted back and forth. Furthermore, it can be disassembled and repaired separately during maintenance.

[0023] 2. In this utility model, by sliding the port of water pipe two into the port of water pipe one, and then installing an arc-shaped pipe on the surface of the port of water pipe two, and connecting the arc-shaped pipe and the semi-circular pipe with bolts, the direction of the water pipe can be directly adjusted and rotated during the installation layout, which improves the overall installation efficiency. Attached Figure Description

[0024] Figure 1 This is a perspective view of a flue gas denitrification atomizing spray device proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the spray pipe structure of a flue gas denitrification atomizing spray device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the spray head of a flue gas denitrification atomizing spray device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the square shell structure of a flue gas denitrification atomizing spray device proposed in this utility model;

[0028] Figure 5 for Figure 2 Enlarged view of point A;

[0029] Figure 6 for Figure 3 Enlarged view of section B;

[0030] Figure 7 for Figure 4 Enlarged view of section C.

[0031] Legend

[0032] 1. Water pipe one; 2. Connecting pipe; 3. Square shell; 4. Limiting plate; 5. Spray pipe; 6. Connecting plate; 7. Connecting column; 8. Rotating plate; 9. Spray head; 10. Water pipe two; 11. Ring; 12. Spring; 13. Blocking block; 14. Semicircular pipe; 15. Bolt; 16. Arc-shaped pipe; 17. Spherical pipe. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 , Figure 2 , Figure 5 This utility model provides an embodiment of a flue gas denitrification atomizing spray device, comprising a water pipe 1. The water pipe 1 is a long, straight, tubular structure with uniform wall thickness. It is made of durable and corrosion-resistant stainless steel, capable of withstanding chemical erosion from long-term transport of various denitrification agent solutions, and possesses sufficient strength to withstand internal water pressure, ensuring stable and reliable water supply. Multiple connecting pipes 2 are fixedly connected to the top of the water pipe 1. The connecting pipes 2 are also tubular structures, shorter straight pipes, and also made of stainless steel. This is to evenly distribute the liquid in the water pipe 1 to each spray pipe 5. A fixing mechanism is fixedly connected inside the connecting pipes 2. The fixing mechanism includes two square shells 3, which are rectangular shells. The structure is made of sturdy engineering plastics with certain strength and rigidity, such as ABS engineering plastic. It is not only lightweight, which facilitates the overall installation and layout adjustment of the device, but also has good molding performance. It can be manufactured into a square shell 3 structure with regular shape and precise dimensions through injection molding. The square shell 3 is fixedly connected to the outside of the connecting pipe 2. The inside of the square shell 3 is fixedly connected to the limiting plate 4. The limiting plate 4 is a flat rectangular plate structure. Its material is the same as that of the square shell 3, which is also an engineering plastic material. The outside of the spray pipe 5 is fixedly connected to the connecting plate 6. The connecting plate 6 is a flat rectangular plate structure. Its material is compatible with that of the spray pipe 5. It is also made of plastic and has a smooth surface. Through a reasonable connection process, it becomes a whole with the spray pipe 5, providing a stable basic structure for the subsequent installation of limiting components.

[0035] The internal rotating connection of the connecting plate 6 includes a limiting component, which includes a connecting post 7. The connecting post 7 is made of a metal material with high strength and wear resistance, such as alloy steel, and is manufactured through precision machining. It has a smooth surface and high diameter accuracy to ensure smooth rotational connection inside the connecting plate 6. The external fixed rotating connection of the connecting post 7 is to the internal connection of the connecting plate 6. The external fixed connection of the connecting post 7 is a rotating plate 8. The rotating plate 8 has a fan-shaped plate structure and is also made of metal, consistent with the connecting post 7. Its surface is smooth and its edges are polished to avoid sharp corners and prevent scratching other parts during rotation. The external rotating connection of the rotating plate 8 is to the internal connection of the connecting plate 6. The external sliding connection of the connecting plate 6 is to the internal connection of the square shell 3. The internal sliding connection of the rotating plate 8 is to the external connection of the limiting plate 4.

[0036] Reference Figure 1 , Figure 3 , Figure 6The spray pipe 5 is slidably connected inside the connecting pipe 2. The spray pipe 5 is a slender tubular structure made of corrosion-resistant and flexible plastic, such as polyvinyl chloride (PVC), which can adapt to installation and use requirements under different angles and working conditions. It also effectively resists corrosion from chemicals such as denitrification agents, ensuring its service life and normal delivery function. A leak-proof mechanism is fixedly connected to the other end of the spray pipe 5. This mechanism includes a spray head 9, made of corrosion-resistant and high-performance metal, such as brass. Metal materials offer higher strength and better durability. The spray head 9 is externally fixed to the outside of the spray pipe 5. A circular ring 11 is fixedly connected internally to the spray head 9. The circular ring 11 is a circular structure made of elastic and corrosion-resistant rubber, and is installed in a specific position inside the spray head 9 via an inlay method. A spring 12 is fixedly connected externally to the circular ring 11. The spring 12 is spiral-shaped. The elastic structure is made of stainless steel wire with good elastic recovery and corrosion resistance. The spring 12 is externally slidably connected to the inside of the spray head 9, and the inside of the spray head 9 is slidably connected to the outside of the blocking block 13. The other end of the spring 12 is fixedly connected to the blocking block 13. The blocking block 13 is a block structure that matches the shape of the spray nozzle of the spray head 9. It is made of corrosion-resistant rubber with certain sealing performance. The surface is smooth and it is in close contact with the inner wall of the spray head 9, which can effectively block the nozzle. The water pipe 1 is externally fixedly connected to a semi-circular pipe 14. The semi-circular pipe 14 is a semi-circular tubular structure. It is made of a strong metal material with good processing and welding performance, such as carbon steel. The semi-circular pipe 14 is internally threaded with multiple bolts 15. The bolts 15 are common screw-shaped structures. They are made of high-strength alloy steel with good strength and wear resistance. The external threads of the bolts 15 are connected to the inside of the arc-shaped pipe 16.

[0037] Reference Figure 1 , Figure 4 , Figure 7 An adjustment mechanism is rotatably connected to the outside and inside of the semicircular tube 14. The adjustment mechanism includes a spherical tube 17, which is a spherical tubular structure. Its material is a metal with good corrosion resistance and sealing performance, such as stainless steel. The outside of the spherical tube 17 is rotatably connected to the inside of the semicircular tube 14. A water pipe 10 is fixedly connected to the outside of the spherical tube 17. The water pipe 10 is also a tubular structure, and its material and diameter are compatible with other pipe fittings such as water pipe 1. An arc-shaped tube 16 is rotatably connected to the outside of the spherical tube 17 for connecting with 14 to facilitate the rotation of the spherical tube 17 inside the arc-shaped tube 16 and the spherical tube 17.

[0038] Working principle: First, during installation and adjustment, force is applied to press the rotating plate 8, which simultaneously drives the spray pipe 5 to slide into the connecting pipe 2. Then, the force applied to the rotating plate 8 is withdrawn, causing the rotating plate 8 to spring back under the force. As a result, the limiting plate 4 inside the square shell 3 slides into the groove outside the rotating plate 8, allowing the direction of the spray head 9 to be adjusted back and forth. Furthermore, it can be disassembled and repaired separately during maintenance.

[0039] The other end of the spray pipe 5 is connected to a spray head 9. The spray head 9 contains a ring 11, a spring 12, and a blocking block 13. These components together form a leak-proof mechanism, effectively sealing the nozzle when not in use to prevent chemical spillage. When the device is started, the chemical solution in water pipe 1 is transported to the spray pipe 5 through connecting pipe 2, and then sprayed out through the spray head 9. At this time, the spring 12 is compressed, and the blocking block 13 moves away, allowing the chemical to be sprayed out through the nozzle of the spray head 9. When the device is turned off, the reaction force of the spring 12 pushes the blocking block 13 upwards, thereby blocking the dripping water from the spray head 9.

[0040] Meanwhile, the device's adjustment mechanism allows operators to flexibly adjust the spray direction of the spray head 9 as needed by rotating the spherical tube 17, thereby optimizing the spraying effect and improving flue gas treatment efficiency. The spherical tube 17 is inserted into the port of water pipe 10, and an arc-shaped tube 16 is installed on the surface of the port of water pipe 10. Bolts 15 connect the arc-shaped tube 16 and the semi-circular tube, allowing the spherical tube 17 to rotate within it, thus changing the direction of water pipe 11. The entire process is efficient and orderly, ensuring effective removal of nitrogen oxides from the flue gas while providing convenience for subsequent maintenance and adjustments.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flue gas denitrification atomizing spray device, comprising a water pipe (1), characterized in that: The top of the water pipe (1) is fixedly connected to multiple connecting pipes (2), the inside of the connecting pipe (2) is fixedly connected to a fixing mechanism, the inside of the connecting pipe (2) is slidably connected to a spray pipe (5), the other end of the spray pipe (5) is fixedly connected to a leak-proof mechanism, the outside of the water pipe (1) is fixedly connected to a semi-circular pipe (14), and the outside and inside of the semi-circular pipe (14) are rotatably connected to an adjustment mechanism; The fixing mechanism includes two square shells (3), the outside of which is fixedly connected to the outside of the connecting pipe (2), and the inside of which is fixedly connected to a limiting plate (4). The outside of the spray pipe (5) is fixedly connected to a connecting plate (6), and the inside of the connecting plate (6) is rotatably connected to a limiting component.

2. The flue gas denitrification atomizing spray device according to claim 1, characterized in that: The limiting component includes a connecting post (7), the outside of which is fixedly and rotatably connected to the inside of the connecting plate (6), and a rotating plate (8) is fixedly connected to the outside of the connecting post (7), the inside of which is slidably connected to the outside of the limiting plate (4).

3. The flue gas denitrification atomizing spray device according to claim 1, characterized in that: The leak-proof mechanism includes a spray head (9), which is fixedly connected to the outside of the spray pipe (5). A ring (11) is fixedly connected inside the spray head (9), and a spring (12) is fixedly connected to the outside of the ring (11). A blocking block (13) is fixedly connected to the other end of the spring (12).

4. The flue gas denitrification atomizing spray device according to claim 1, characterized in that: The adjustment mechanism includes a spherical tube (17), the outside of which is rotatably connected to the inside of the semi-circular tube (14), a water pipe (10) is fixedly connected to the outside of the spherical tube (17), and an arc-shaped tube (16) is rotatably connected to the outside of the spherical tube (17).

5. The flue gas denitrification atomizing spray device according to claim 4, characterized in that: The semi-circular tube (14) has multiple bolts (15) internally threaded, and the bolts (15) have external threads connected to the inside of the arc-shaped tube (16).

6. The flue gas denitrification atomizing spray device according to claim 2, characterized in that: The outside of the rotating plate (8) is rotatably connected to the inside of the connecting plate (6), and the outside of the connecting plate (6) is slidably connected to the inside of the square shell (3).

7. The flue gas denitrification atomizing spray device according to claim 3, characterized in that: The spring (12) is externally slidably connected to the inside of the spray head (9), and the inside of the spray head (9) is slidably connected to the outside of the block (13).

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