Spray gun of denitration system

Abstract

The utility model relates to the technical field of denitration systems, in particular to a spray gun of a denitration system, which adopts the technical scheme that the spray gun comprises a mounting sleeve and an ammonia water ring pipe, an air ring pipe is arranged below the ammonia water ring pipe, spray gun bodies are communicated and mounted above the ammonia water ring pipe in an annular array, and the spray gun further comprises a first communicating pipe; the first communicating pipe is arranged on one side, opposite to the air ring pipe, of the ammonia water ring pipe; the upper end and the lower end of the first communicating pipe are communicated with the ammonia water ring pipe and the air ring pipe respectively. The utility model solves the problems that the existing spray gun is difficult to spray ammonia water to a high-temperature area and the usage amount of the ammonia water is increased.

Description

Technical Field

[0001] This utility model relates to the field of denitrification system technology, specifically a spray gun for a denitrification system. Background Technology

[0002] The spray guns currently used in denitrification systems spray ammonia water in a direct injection manner, resulting in a low coverage area of ​​the spray system within the flue.

[0003] However, the spray gun in a denitrification system not only needs good atomization characteristics but also sufficient penetration capability; otherwise, a sidewall effect will occur, preventing the ammonia from mixing with the flue gas in the center of the pipeline. As the ammonia is carried out of the high-temperature zone by the airflow, the temperature drops, preventing the ammonia from reacting properly with NOx, and the ammonia escape increases the operating cost of the denitrification system. Therefore, a spray gun for a denitrification system is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a spray gun for a denitrification system, which has the advantages of reducing ammonia water usage and spraying ammonia water to high-temperature areas, thus solving the problem that the current spray guns are difficult to spray ammonia water to high-temperature areas and lead to an increase in ammonia water usage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spray gun for a denitrification system, comprising an installation sleeve and an ammonia water ring pipe, wherein an air ring pipe is provided below the ammonia water ring pipe, and a spray gun body is installed in a ring array above the ammonia water ring pipe, and further comprising a first connecting pipe;

[0006] The first connecting pipe is located on the opposite side of the ammonia ring pipe and the air ring pipe; wherein, the upper and lower ends of the first connecting pipe are respectively connected to the ammonia ring pipe and the air ring pipe.

[0007] When using the spray gun of a denitrification system in this technical solution, ammonia water is injected into the ammonia water ring pipe through the liquid inlet pipe, and compressed air is injected into the air ring pipe through the air inlet pipe. At this time, the ammonia water can be pressurized and sprayed through the spray gun body, thereby realizing the denitrification operation.

[0008] Preferably, one end of the ammonia ring pipe is perforated and connected to an inlet pipe.

[0009] Preferably, one end of the air ring pipe has an opening and is connected to an air intake pipe.

[0010] Preferably, the spray gun body adopts a two-section structure design. The end of the spray gun body close to the ammonia water ring pipe is connected to and installed with a second connecting pipe. There are three spray gun bodies, and nozzles are provided in the middle section and the end away from the second connecting pipe of each of the three spray gun bodies.

[0011] Preferably, the bottom end of the second connecting pipe is embedded in and installed on the top of the ammonia water ring pipe and is connected to the ammonia water ring pipe.

[0012] Preferably, a one-way valve is provided inside the first connecting pipe, and a connecting bracket is fixedly installed on the outside of the first connecting pipe.

[0013] Preferably, the number of connecting brackets is four, and each of the four connecting brackets has a screw hole on the opposite side and is threaded with a mounting screw.

[0014] Preferably, the mounting screw is movably installed inside the mounting sleeve, and the mounting sleeve is movably fitted onto the outside of the ammonia ring pipe and the air ring pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features an ammonia water ring pipe and an air ring pipe, connected by a first connecting pipe. Compressed air within the air ring pipe pressurizes the ammonia water, thus increasing the pressure of the ammonia water entering the spray gun body during use. Furthermore, the two-section design of the spray gun body allows for a wider spraying range within the pipe, bringing the ammonia water closer to the high-temperature areas within the pipe. This reduces ammonia water usage and directs the spraying towards higher-temperature regions. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 For the present utility model Figure 1 Enlarged structural diagram;

[0019] Figure 3 This is a top view of the structure of this utility model.

[0020] In the diagram: 1. Installation sleeve; 2. Spray gun body; 3. Ammonia water ring pipe; 4. Liquid inlet pipe; 5. Air inlet pipe; 6. First connecting pipe; 7. Air ring pipe; 8. Second connecting pipe; 9. Connecting bracket; 10. Installation screws. 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] Example

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, one embodiment of the present invention is provided: a spray gun for a denitrification system, including a mounting sleeve 1 and an ammonia water ring pipe 3, an air ring pipe 7 is provided below the ammonia water ring pipe 3, and a spray gun body 2 is installed in a ring array above the ammonia water ring pipe 3, and also includes a first connecting pipe 6.

[0024] Specifically, the first connecting pipe 6 is located on the opposite side of the ammonia water ring pipe 3 and the air ring pipe 7; wherein, the upper and lower ends of the first connecting pipe 6 are respectively connected to the ammonia water ring pipe 3 and the air ring pipe 7. By setting up the ammonia water ring pipe 3 and the air ring pipe 7, and connecting the ammonia water ring pipe 3 and the air ring pipe 7 through the first connecting pipe 6, the compressed air in the air ring pipe 7 pressurizes the ammonia water. Thus, when in use, the ammonia water entering the spray gun body 2 is pressurized. Since the spray gun body 2 adopts a two-section structure design, the ammonia water can be sprayed over a large area in the pipeline, so that the ammonia water is closer to the high-temperature area in the pipeline, thereby achieving the effect of reducing the use of ammonia water and spraying the ammonia water towards the high-temperature area.

[0025] Furthermore, one end of the ammonia ring pipe 3 is perforated and connected to an inlet pipe 4.

[0026] Furthermore, one end of the air ring pipe 7 is perforated and connected to an air intake pipe 5.

[0027] Furthermore, the spray gun body 2 adopts a two-section structure design. The end of the spray gun body 2 closest to the ammonia water ring pipe 3 is connected to and installed with a second connecting pipe 8. There are three spray gun bodies 2 in total, and nozzles are provided in the middle section and the end away from the second connecting pipe 8 of each of the three spray gun bodies 2. The bottom end of the second connecting pipe 8 is embedded in and installed at the top of the ammonia water ring pipe 3 and is connected to the ammonia water ring pipe 3.

[0028] Furthermore, a one-way valve is provided inside the first connecting pipe 6, and a connecting bracket 9 is fixedly installed on the outside of the first connecting pipe 6. There are four connecting brackets 9, and each of the four connecting brackets 9 has a screw hole on the opposite side and a mounting screw 10 is threaded on it. The mounting screw 10 is movably installed inside the mounting sleeve 1, and the mounting sleeve 1 is movably fitted onto the outside of the ammonia water ring pipe 3 and the air ring pipe 7.

[0029] When this utility model is in use, ammonia water is injected into the ammonia water ring pipe 3 through the liquid inlet pipe 4, and compressed air is injected into the air ring pipe 7 through the air inlet pipe 5. At this time, the ammonia water can be pressurized and sprayed through the spray gun body 2, thereby realizing the denitrification operation.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spray gun for a denitrification system, comprising an mounting sleeve (1) and an ammonia water ring pipe (3), wherein an air ring pipe (7) is provided below the ammonia water ring pipe (3), and a spray gun body (2) is mounted in a ring array above the ammonia water ring pipe (3), characterized in that, Also includes: The first connecting pipe (6) is located on the opposite side of the ammonia ring pipe (3) and the air ring pipe (7); The first connecting pipe (6) is connected to the ammonia water ring pipe (3) and the air ring pipe (7) at its upper and lower ends respectively.

2. The spray gun of the denitrification system according to claim 1, characterized in that, The ammonia water loop pipe (3) has an opening at one end and is connected to an inlet pipe (4).

3. The spray gun of the denitrification system according to claim 1, characterized in that, One end of the air ring pipe (7) is opened and connected to an air intake pipe (5).

4. The spray gun of the denitrification system according to claim 1, characterized in that, The spray gun body (2) adopts a two-section structure design. The end of the spray gun body (2) close to the ammonia water ring pipe (3) is connected to a second connecting pipe (8). There are three spray gun bodies (2). The middle section and the end away from the second connecting pipe (8) of the three spray gun bodies (2) are equipped with nozzles.

5. The spray gun of the denitrification system according to claim 4, characterized in that, The bottom end of the second connecting pipe (8) is embedded in the top of the ammonia water ring pipe (3) and connected to the ammonia water ring pipe (3).

6. The spray gun of the denitrification system according to claim 1, characterized in that, A one-way valve is provided inside the first connecting pipe (6), and a connecting bracket (9) is fixedly installed on the outside of the first connecting pipe (6).

7. The spray gun of the denitrification system according to claim 6, characterized in that, The number of connecting brackets (9) is four, and each of the four connecting brackets (9) has a screw hole on the opposite side and is threaded with a mounting screw (10).

8. The spray gun of the denitrification system according to claim 7, characterized in that, The mounting screw (10) is movably installed inside the mounting sleeve (1), and the mounting sleeve (1) is movably fitted onto the outside of the ammonia ring pipe (3) and the air ring pipe (7).

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