A novel sootblowing device

Abstract

This utility model discloses a novel soot blowing device, belonging to the field of flue gas denitrification technology. It includes a blowpipe with a nitrogen main branch pipe connected to its middle section. A blowpipe support, connected to the top of the blowpipe's outer surface, is fixedly installed on the outer surface of the nitrogen main branch pipe. Multiple sets of slit-type nozzles are formed at the bottom of the blowpipe's outer surface, and a catalyst module is located at the bottom of the blowpipe. This novel soot blowing device, through the engagement of a positioning vertical plate and a moving rack plate with a rotating gear, drives the rotating horizontal bar and the telescopic diagonal bar to rotate. This allows for flexible adjustment of the arc-shaped baffle, enabling more precise control of the slit-type nozzles. It alters the angle at which the baffle blocks and guides the nitrogen emitted from the slit-type nozzles, achieving precise soot blowing and facilitating better adjustment of the soot blowing range. This significantly improves the targeting and effectiveness of soot blowing, facilitating more efficient soot blowing operations.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas denitrification technology, specifically a novel soot blowing device. Background Technology

[0002] In flue gas denitrification systems, the catalyst module is crucial because high-temperature flue gas continuously flows through its catalytic reaction channels (approximately 15mm x 15mm per compartment). Due to the narrow and long channel compartments, unfiltered dust or crystalline substances easily adhere to the catalyst compartment surface, causing severe blockage over time. This leads to a gradual increase in flue gas flow resistance and, in severe cases, system shutdown. Therefore, the role of the nitrogen soot blowing device for the catalyst module is particularly important. Currently, existing nitrogen soot blowing devices generally use 8mm diameter nozzles for soot blowing. However, due to their simple structure, these devices have a limited soot blowing range on the catalyst compartments, making it difficult to comprehensively clean the surface and reducing the convenience of soot blowing, thus hindering optimal use. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a novel soot blowing device, which solves the problem that due to its simple structure, the soot blowing range of the catalyst grid is limited, making it difficult to perform a more comprehensive soot blowing operation on the surface of the catalyst grid, reducing the convenience of soot blowing for the catalyst grid and hindering its better use.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel soot blowing device, comprising a blowing pipe, wherein a nitrogen main branch pipe is connected to the middle of the blowing pipe, a blowing pipe bracket connected to the top of the outer surface of the blowing pipe is fixedly installed on the outer surface of the nitrogen main branch pipe, and multiple sets of slit-type nozzles are opened at the bottom of the outer surface of the blowing pipe, and a catalyst module is provided at the bottom of the blowing pipe.

[0007] As a further embodiment of this utility model: a fixed vertical frame is fixedly installed on the inner wall of the blowpipe, a rotatable horizontal bar is provided at the bottom of the fixed vertical frame, telescopic diagonal bars are fixedly installed on both the left and right sides of the outer surface of the horizontal bar, an arc-shaped baffle is fixedly installed at the bottom end of the telescopic diagonal bar, a rotating gear is fixedly installed at the outer end of the horizontal bar, positioning vertical plates are slidably arranged on both the left sides of the blowpipe, a movable rack plate is fixedly installed on the lower surface of the positioning vertical plate, the rotating gear meshes with the movable rack plate, a pressing cover plate is fixedly installed on the upper surface of the positioning vertical plate, a compression spring is fixedly installed on the lower surface of the pressing cover plate, a stabilizing column penetrating inside the pressing cover plate is fixedly installed at the bottom end of the compression spring, and a limit bracket is fixedly installed on both the left sides of the outer surface of the blowpipe, with a limit rod inserted into the positioning vertical plate penetrating through the inside of the limit bracket.

[0008] As a further embodiment of this utility model: the outer side of the positioning vertical plate is provided with multiple sets of limiting through holes, the size of which is adapted to the size of the limiting rod.

[0009] As a further embodiment of this utility model: the number of slit nozzles is seven sets, and the seven sets of slit nozzles are adapted to the size of the arc-shaped baffle.

[0010] As a further embodiment of this utility model: a circular through hole is provided on the upper surface of the pressing cover plate, and the size of the circular through hole is adapted to the size of the stabilizing column.

[0011] As a further embodiment of this utility model: the telescopic diagonal rod is composed of sleeves of different diameters nested together, and the length change is achieved by the sliding fit between the sleeves.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This novel soot blowing device, through the engagement of a positioning vertical plate and a movable rack plate with a rotating gear, drives the rotating horizontal bar and the telescopic diagonal bar to rotate, allowing the position of the arc-shaped baffle to be flexibly adjusted. This enables better and more precise control of the slit nozzle, changing its obstruction and guidance angle of the nitrogen gas ejected from the slit nozzle, achieving precise soot blowing, facilitating better adjustment of the soot blowing range, greatly improving the targeting and effectiveness of soot blowing, and helping people to perform soot blowing operations more efficiently.

[0015] 2. This new type of soot blowing device achieves the limiting and fixing operation of the arc-shaped baffle by setting a limiting rod that passes through the limiting bracket and inserts into the positioning vertical plate. This results in a better limiting and fixing effect on the arc-shaped baffle, better ensuring the stability of the arc-shaped baffle during use, and making the use of the arc-shaped baffle simpler and more convenient, making it easier for people to use. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the vertical cross-section of the present invention;

[0018] Figure 3 This is a partial structural diagram of the present invention;

[0019] In the diagram: 1. Injection pipe; 2. Nitrogen main branch pipe; 3. Injection pipe support; 4. Slit nozzle; 5. Catalyst module; 6. Fixed vertical frame; 7. Rotating horizontal bar; 8. Telescopic diagonal bar; 9. Arc-shaped baffle; 10. Rotating gear; 11. Positioning vertical plate; 12. Moving rack plate; 13. Pressing cover plate; 14. Compression spring; 15. Stabilizing column; 16. Limiting bracket; 17. Limiting rod. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] like Figure 1-3As shown, this utility model provides a technical solution: a novel soot blowing device, including a blowpipe 1, with a nitrogen main branch pipe 2 connected to the middle of the blowpipe 1. The nitrogen main branch pipe 2 is responsible for delivering nitrogen into the blowpipe 1. A blowpipe support 3 is fixedly installed on the outer surface of the nitrogen main branch pipe 2. One end of the support is connected to the nitrogen main branch pipe 2, and the other end is connected to the top of the outer surface of the blowpipe 1, which serves to stabilize the blowpipe 1 and ensure its stability during operation, preventing shaking that could affect the soot blowing effect. Multiple sets of slit-type nozzles 4 are opened at the bottom of the outer surface of the blowpipe 1. These nozzles are slit-shaped, which, compared to traditional circular nozzles, allows nitrogen to be sprayed out in a flatter and more dispersed form, thereby expanding the soot blowing coverage area. Experimental tests show that when nitrogen is sprayed from the slit-type nozzles... When nozzle 4 sprays out, under the same pressure and flow conditions, its coverage area is about 30% larger than that of a traditional circular nozzle. A catalyst module 5 is located at the bottom of the blowpipe 1. During soot blowing, nitrogen gas sprayed from the slit nozzle 4 directly acts on the surface of the catalyst module 5, removing dust and crystalline substances. A fixed vertical frame 6 is fixedly installed on the inner wall of the blowpipe 1, serving to support and position rotating components. A rotatable horizontal bar 7 is located at the bottom of the fixed vertical frame 6, allowing it to rotate flexibly at the bottom. Telescopic diagonal bars 8 are fixedly installed on both the left and right sides of the outer surface of the horizontal bar 7. The telescopic diagonal bars 8 are composed of nested sleeves of different diameters, utilizing the sliding fit between the sleeves to achieve length changes. When the horizontal bar 7 rotates, it drives the telescopic diagonal bar 8 to move synchronously. By adjusting the length of the telescopic diagonal bar 8, the position of the arc-shaped baffle 9 fixedly installed at its bottom end can be changed. A rotating gear 10 is fixedly installed at the outer end of the rotating horizontal bar 7. Positioning vertical plates 11 are slidably arranged on both sides of the blowpipe 1. A movable rack plate 12 is fixedly installed on the lower surface of the positioning vertical plate 11. The rotating gear 10 and the movable rack plate 12 mesh with each other. In this way, when the positioning vertical plate 11 is moved, the movable rack plate 12 moves accordingly, driving the rotating gear 10 to rotate, thereby causing the rotating horizontal bar 7, the telescopic diagonal bar 8, and the arc-shaped baffle 9 to rotate and change position accordingly. A pressing cover plate 13 is fixedly installed on the upper surface of the positioning vertical plate 11, and a compression spring 1 is fixedly installed on the lower surface of the pressing cover plate 13. 4. A stabilizing column 15 is fixedly installed at the bottom end of the compression spring 14, penetrating inside the pressing cover plate 13. When the position of the arc-shaped baffle 9 needs to be adjusted, the pressing cover plate 13 is controlled, the compression spring 14 is compressed, and the stabilizing column 15 moves downward within the circular through hole of the pressing cover plate 13, allowing the positioning vertical plate 11 to slide relative to the blow pipe 1, thereby adjusting the position of the arc-shaped baffle 9. The stabilizing column 15 moves upward within the circular through hole, stabilizing and positioning the positioning vertical plate 11. Limiting brackets 16 are fixedly installed on both the left and right sides of the outer surface of the blow pipe 1. Limiting rods 17 penetrate the inside of the limiting brackets 16 and are inserted into the positioning vertical plate 11 to limit the sliding range of the positioning vertical plate 11 and prevent excessive sliding that could cause structural damage.Ensure the safety and stability of the adjustment process.

[0022] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, there are seven sets of slit nozzles 4. After multiple experiments and optimization designs, the seven sets of slit nozzles 4 can achieve relatively comprehensive coverage of the surface of the catalyst module 5 while ensuring uniform nitrogen spray. The seven sets of slit nozzles 4 are adapted to the size of the arc-shaped baffle 9. When the arc-shaped baffle 9 is in different positions, it can effectively block or guide part of the nitrogen sprayed from the slit nozzles 4, and further adjust the angle and range of soot blowing. The outer side of the positioning vertical plate 11 has multiple sets of limiting through holes. The size of the limiting through holes is adapted to the size of the limiting rod 17. The limiting rod 17 can be inserted into the limiting through holes at different positions to fix the positioning vertical plate 11 at different positions, and meet the precise adjustment of the position of the arc-shaped baffle 9 under different soot blowing requirements. The upper surface of the pressing cover plate 13 has a circular through hole. The size of the circular through hole is adapted to the size of the stabilizing column 15, ensuring that the stabilizing column 15 can move up and down smoothly in the circular through hole, and at the same time play a certain guiding and positioning role for the pressing cover plate 13.

[0023] The working principle of this utility model is as follows:

[0024] S1. When it is necessary to blow away dust and crystalline substances on the surface of catalyst module 5, the operator controls the pressing cover plate 13 by hand. The compression spring 14 is compressed, and the stabilizing column 15 moves downward in the circular through hole of the pressing cover plate 13. The positioning vertical plate 11 slides relative to the blow pipe 1. The moving rack plate 12 on the lower surface of the positioning vertical plate 11 drives the rotating gear 10 to rotate, which in turn causes the rotating horizontal bar 7 to rotate. The telescopic diagonal bar 8 changes its length as the rotating horizontal bar 7 rotates, and the arc-shaped baffle 9 at its bottom end also rotates and unfolds to both sides accordingly. The limiting rod 17 passes through the limiting bracket 16 and is inserted into the interior of the positioning vertical plate 11 to limit and fix the arc-shaped baffle 9.

[0025] S2. At this time, the nitrogen gas entering the injection pipe 1 from the main nitrogen branch pipe 2 is sprayed out through the seven sets of slit nozzles 4. Part of the nitrogen gas directly acts on the surface of the catalyst module 5 to blow off the dust. The other part of the nitrogen gas, under the shielding and guidance of the arc-shaped baffle 9, changes the spray angle to strengthen the dust blowing of the areas that need to be cleaned. During the dust blowing process, the position of the arc-shaped baffle 9 can be adjusted multiple times according to the actual situation to ensure that all impurities on the surface of the catalyst module 5 are completely removed.

[0026] In summary, this novel soot blowing device, by setting a positioning vertical plate 11 and a movable rack plate 12 to mesh with a rotating gear 10, drives the rotating horizontal bar 7 and the telescopic diagonal bar 8 to rotate, allowing the position of the arc-shaped baffle 9 to be flexibly adjusted. This enables better precise control of the slit nozzle 4, changing its obstruction and guiding angle on the nitrogen gas ejected from the slit nozzle 4, achieving precise soot blowing, facilitating better adjustment of the soot blowing range, greatly improving the targeting and effectiveness of soot blowing, and helping people to perform soot blowing operations more efficiently.

[0027] This new type of soot blowing device achieves the limiting and fixing operation of the arc-shaped baffle 9 by setting a limiting rod 17 that passes through the limiting bracket 16 and is inserted into the positioning vertical plate 11. This results in a better limiting and fixing effect on the arc-shaped baffle 9, better ensuring the stability of the arc-shaped baffle 9 during use, and making the use of the arc-shaped baffle 9 simpler and more convenient, making it easier for people to use.

[0028] This new type of soot blowing device, through

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A novel sootblowing device comprising a blowpipe (1), characterized in that: The middle part of the injection pipe (1) is connected to a nitrogen main branch pipe (2). The outer surface of the nitrogen main branch pipe (2) is fixedly installed with an injection pipe bracket (3) connected to the top of the outer surface of the injection pipe (1). Multiple sets of slit nozzles (4) are opened at the bottom of the outer surface of the injection pipe (1). A catalyst module (5) is provided at the bottom of the injection pipe (1).

2. A novel sootblowing device according to claim 1, characterized in that The inner wall of the blow pipe (1) is fixedly installed with a fixed vertical frame (6). The bottom of the fixed vertical frame (6) is provided with a rotatable rotating horizontal bar (7). Telescopic diagonal bars (8) are fixedly installed on both the left and right sides of the outer surface of the rotating horizontal bar (7). An arc-shaped baffle (9) is fixedly installed at the bottom end of the telescopic diagonal bar (8). A rotating gear (10) is fixedly installed at the outer end of the rotating horizontal bar (7). Positioning vertical plates (11) are slidably arranged on both the left and right sides of the blow pipe (1). A movable rack plate (12) is fixedly installed on the lower surface of the positioning vertical plate (11). The rotating gear (10) meshes with the moving rack plate (12). A pressing cover plate (13) is fixedly installed on the upper surface of the positioning vertical plate (11). A compression spring (14) is fixedly installed on the lower surface of the pressing cover plate (13). A stabilizing column (15) that passes through the inside of the pressing cover plate (13) is fixedly installed at the bottom end of the compression spring (14). Limiting brackets (16) are fixedly installed on both sides of the outer surface of the blow pipe (1). A limiting rod (17) that is inserted into the inside of the positioning vertical plate (11) passes through the inside of the limiting bracket (16).

3. The novel soot blowing device according to claim 2, characterized in that: The outer side of the positioning vertical plate (11) has multiple sets of limiting through holes, the size of which is adapted to the size of the limiting rod (17).

4. The novel soot blowing device according to claim 1, characterized in that: The number of slit nozzles (4) is seven, and the seven slit nozzles (4) are adapted to the size of the arc-shaped baffle (9).

5. A novel soot blowing device according to claim 2, characterized in that: The upper surface of the pressing cover plate (13) is provided with a circular through hole, the size of which is adapted to the size of the stabilizing column (15).

6. A novel soot blowing device according to claim 2, characterized in that: The telescopic diagonal rod (8) is composed of sleeves of different diameters nested together, and the length is changed by the sliding fit between the sleeves.

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