Boiler flue anti-abrasion grid structure

Abstract

The utility model provides a kind of boiler flue anti-abrasion grating structure, it is related to boiler technical field, including boiler flue, further include: adaptive adjustment mounting assembly, adaptive adjustment mounting assembly includes the first installation frame being set in the boiler flue, in the utility model, when the first installation frame needs to be installed in the boiler flue, first installation frame is placed in the boiler flue, rotates first bolt drive moving block movement, by the movement of rotating lever and moving rod, make the clamping block along the limit block guide expansion, clamping or disengaging flue slot, by wave-shaped grating disperses flue gas impact, wave-shaped structure optimizes airflow distribution, wear-resistant buffer coating reduces abrasion, when flue occurs deformation due to thermal expansion and contraction, moving plate drives moving rod to slide in support plate, expansion spring is compressed or stretched, drive other components movement, ensure that grating plays the role of anti-abrasion under the complex working condition of flue stably, realize the quick locking or adaptive adjustment of grating.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and in particular to a boiler flue anti-wear grid structure. Background Technology

[0002] The boiler flue anti-wear grating structure is a protective device used in boiler flues. It is mainly used to reduce the wear of the airflow in the flue on the boiler equipment. As the boiler operates for a longer period of time, solid particles and high-temperature gases in the airflow in the flue will cause corrosion and wear to the boiler flue, leading to equipment failure or performance degradation. The anti-wear grating structure effectively reduces this wear through specific design, extends the service life of the boiler, and improves the stability of equipment operation.

[0003] However, in actual use, the following shortcomings still exist. For example, the existing boiler flue grid structure cannot ensure that the grid can stably play an anti-wear role under complex flue conditions, and it cannot achieve rapid locking or adaptive adjustment of the grid. Under flue gas flow fluctuations or thermal stress, the grid without rapid locking function may shift or fall off, blocking the flue or damaging downstream equipment, or even forcing the boiler to shut down in an emergency. When the boiler starts up or stops or the load changes, the flue temperature fluctuates drastically. If the grid cannot adapt to the changes, it may deform or crack due to thermal stress concentration and lose its anti-wear function. After the grid fails, the particles in the flue gas directly scour the boiler heating surface, accelerating the wear of the heating surface, reducing heat exchange efficiency, and even causing the tube wall to thin and perforate, leading to flue gas leakage, or even forcing the shutdown for maintenance.

[0004] Therefore, this utility model proposes a boiler flue anti-wear grid structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a boiler flue anti-wear grid structure.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a boiler flue anti-wear grid structure, including a boiler flue, and further comprising:

[0007] An adaptive adjustment mounting assembly includes a first mounting frame disposed within a boiler flue, a corrugated grid connected within the first mounting frame, and a wear-resistant buffer coating disposed on the corrugated grid.

[0008] A support plate is connected to the first mounting frame. A limit rod is slidably connected inside the support plate. A movable plate is connected to the top of the limit rod. A telescopic spring is provided on the limit rod. A first bolt is rotatably connected to the movable plate. A movable block is threaded onto the first bolt. A rotating rod is rotatably connected to the movable block. A movable rod is rotatably connected to the rotating rod. A locking block is connected to the movable rod. A limit block is connected to the movable plate. The movable rod is slidably connected inside the limit block. A locking groove is opened inside the boiler flue. The locking block is set in the locking groove.

[0009] Furthermore, a pull rod is connected to the bottom of the limiting rod.

[0010] The beneficial effects of adopting the above-mentioned further solution are: the pull rod at the bottom of the limit rod is used to manually adjust the position of the moving plate. When the pull rod is pulled, the limit rod drives the moving plate to move down against the elastic force of the telescopic spring, so that the first mounting frame can be placed in the boiler flue. After the pull rod is released, the telescopic spring returns to its original position, and the first bolt can be rotated to drive the locking block into the flue slot.

[0011] Furthermore, one end of the telescopic spring is connected to the support plate, and the other end of the telescopic spring is connected to the movable plate.

[0012] The beneficial effects of adopting the above-mentioned further solution are: one end of the telescopic spring is fixed to the support plate and the other end is connected to the moving plate. When the flue expands and contracts due to heat, the telescopic spring buffers the deformation stress through expansion and contraction, maintains the tight fit between the locking block and the locking groove, avoids structural damage caused by rigid connection, and extends service life.

[0013] Furthermore, a fixing block is connected to the side of the movable plate near the card block.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the fixing block is located on the side of the moving plate close to the card block, the fixing block is inserted into the flue slot, which is used to limit the installation position of the first mounting frame, ensure that the card block extends and retracts along the predetermined path, avoids deflection and jamming, and improves the reliability of adaptive adjustment.

[0015] Furthermore, the first mounting frame is provided with a flow guiding component, which includes a second mounting frame disposed on the first mounting frame, and a flow guiding plate is connected to the second mounting frame.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the flow guiding component is fixed on the first mounting frame by the second mounting frame, the flow guiding plates are arranged at an angle, guiding the high-speed flue gas to be evenly distributed, reducing the intensity of local scouring, and optimizing the anti-wear effect.

[0017] Furthermore, a second bolt is threaded onto the second mounting frame, and the second bolt is threaded onto the first mounting frame.

[0018] The beneficial effects of adopting the above-mentioned further solution are: the second bolt fastens the second mounting frame to the first mounting frame, which can realize quick disassembly and assembly, and facilitates the maintenance or replacement of the guide plate. The preload of the second bolt ensures the stability of the guide assembly installation.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] In this invention, when the first mounting frame needs to be installed inside the boiler flue, the first mounting frame is placed inside the boiler flue, and the first bolt is rotated to drive the moving block to move. Through the movement of the rotating rod and the moving rod, the locking block extends and retracts along the guide of the limiting block, locking into or disengaging from the flue slot. The wave-shaped grille disperses the impact of flue gas, the wave-shaped structure optimizes the airflow distribution, and the wear-resistant buffer coating reduces wear. When the flue deforms due to thermal expansion and contraction, the moving plate drives the moving rod to slide inside the support plate, and the telescopic spring is compressed or extended, driving other components to move. This ensures that the grille can stably play an anti-wear role under complex flue conditions, extending its service life and achieving rapid locking or adaptive adjustment of the grille. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a boiler flue anti-wear grid according to the present invention;

[0022] Figure 2 This is a structural breakdown diagram of a boiler flue anti-wear grid structure according to the present invention;

[0023] Figure 3 This is a schematic diagram of the adaptive adjustment installation component structure of a boiler flue anti-wear grid structure according to the present invention;

[0024] Figure 4 This is a schematic diagram showing the disassembled structure of the adaptive adjustment installation component of the boiler flue anti-wear grid structure according to this utility model;

[0025] Figure 5 This is a schematic diagram of the flow guiding component structure of a boiler flue anti-wear grid structure according to the present invention.

[0026] Figure label:

[0027] 1. Boiler flue;

[0028] 2. Adaptive adjustment mounting components; 21. First mounting frame; 22. Wavy grille; 23. Wear-resistant buffer coating; 24. Support plate; 25. Tie rod; 26. Limiting rod; 27. Moving plate; 28. Telescopic spring; 29. ​​First bolt; 210. Moving block; 211. Rotating rod; 212. Moving rod; 213. Locking block; 214. Limiting block; 215. Fixing block; 216. Locking groove;

[0029] 3. Flow guide assembly; 31. Second mounting frame; 32. Flow guide plate; 33. Second bolt. Detailed Implementation

[0030] 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.

[0031] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a boiler flue anti-wear grating structure, including a boiler flue 1, and further comprising:

[0032] Adaptive adjustment mounting component 2, the adaptive adjustment mounting component 2 includes a first mounting frame 21 set in the boiler flue 1, a corrugated grid 22 connected in the first mounting frame 21, and a wear-resistant buffer coating 23 provided on the corrugated grid 22;

[0033] A support plate 24 is connected to the first mounting frame 21. A limit rod 26 is slidably connected inside the support plate 24. A movable plate 27 is connected to the top of the limit rod 26. A telescopic spring 28 is provided on the limit rod 26. A first bolt 29 is rotatably connected to the movable plate 27. A movable block 210 is threaded onto the first bolt 29. A rotating rod 211 is rotatably connected to the movable block 210. A movable rod 212 is rotatably connected to the rotating rod 211. A locking block 213 is connected to the movable rod 212. A limit block 214 is connected to the movable plate 27. The movable rod 212 is slidably connected inside the limit block 214. A slot 216 is provided inside the boiler flue 1. The locking block 213 is located in the slot 216. When the first mounting frame 21 needs to be installed on the boiler... When the boiler flue 1 is in the boiler flue, the first mounting frame 21 is placed in the boiler flue 1. The first bolt 29 is rotated to drive the moving block 210 to move. Through the movement of the rotating rod 211 and the moving rod 212, the locking block 213 is guided to extend and retract along the limiting block 214, locking into or disengaging from the flue slot 216. The wave-shaped grille 22 disperses the impact of flue gas. The wave-shaped structure optimizes the airflow distribution. The wear-resistant buffer coating 23 reduces wear. When the flue deforms due to thermal expansion and contraction, the moving plate 27 drives the moving rod 212 to slide in the support plate 24. The telescopic spring 28 is compressed or extended, driving other components to move. This ensures that the grille can stably play an anti-wear role under the complex working conditions of the flue, extending its service life and realizing the rapid locking or adaptive adjustment of the grille.

[0034] The above solutions also have the problem that, when in use, the wavy grille 22 cannot achieve the desired uniform distribution of high-speed flue gas, reduce local scouring intensity, or optimize anti-wear effect. Figure 1 - Figure 4 As shown: A pull rod 25 is connected to the bottom of the limiting rod 26. The pull rod 25 at the bottom of the limiting rod 26 is used to manually adjust the position of the moving plate 27. When the pull rod 25 is pulled, the limiting rod 26 drives the moving plate 27 to move downward against the elastic force of the telescopic spring 28, so that the first mounting frame 21 can be placed in the boiler flue 1. After the pull rod 25 is released, the telescopic spring 28 returns to its original position. By rotating the first bolt 29, the locking block 213 can be driven into the flue slot 216. One end of the telescopic spring 28 is connected to the support plate 24, and the other end of the telescopic spring 28 is connected to the moving plate 27. One end of the telescopic spring 28 is fixed to the support plate 24. The support plate 24 is connected to the movable plate 27 at the other end. When the flue expands and contracts due to heat, the telescopic spring 28 buffers the deformation stress through telescopic expansion and contraction, maintaining the tight fit between the locking block 213 and the locking groove 216, avoiding structural damage caused by rigid connection, and extending service life. A fixing block 215 is connected to the side of the movable plate 27 near the locking block 213. The fixing block 215 is located on the side of the movable plate 27 near the locking block 213. The fixing block 215 is inserted into the flue groove to limit the installation position of the first mounting frame 21, ensuring that the locking block 213 expands and contracts along the predetermined path, avoiding skew and jamming, and improving the reliability of adaptive adjustment.

[0035] like Figure 5 As shown, a flow guiding component 3 is provided on the first mounting frame 21. The flow guiding component 3 includes a second mounting frame 31 provided on the first mounting frame 21. A flow guiding plate 32 is connected to the second mounting frame 31. The flow guiding component 3 is fixed to the first mounting frame 21 through the second mounting frame 31. The flow guiding plate 32 is arranged at an angle to guide the high-speed flue gas to be evenly distributed, reduce the intensity of local scouring, and optimize the anti-wear effect. A second bolt 33 is threadedly connected to the second mounting frame 31. The second bolt 33 is threadedly connected to the first mounting frame 21. The second bolt 33 fastens the second mounting frame 31 to the first mounting frame 21, which can realize quick disassembly and assembly, and facilitate the maintenance or replacement of the flow guiding plate 32. The preload of the second bolt 33 ensures the stability of the flow guiding component 3 installation.

[0036] like Figure 1 - Figure 5As shown, firstly, the flow guiding assembly 3 secures the second mounting frame 31 to the first mounting frame 21 using the second bolt 33. Its inclinedly arranged flow guiding plates 32 guide the high-speed flue gas to a uniform distribution, reducing local scouring intensity and effectively minimizing wear on the flue wall. Simultaneously, the second bolt 33 facilitates quick assembly and disassembly of the flow guiding assembly 3, making it convenient to inspect or replace the flow guiding plates 32, ensuring the flow guiding effect is always optimal. During installation, by pulling the pull rod 25 at the bottom of the limiting rod 26, the moving plate 27 overcomes the elastic force of the telescopic spring 28 and moves downwards, allowing the first mounting frame 21 to be smoothly placed inside the boiler flue 1. After releasing the pull rod 25, the telescopic spring 28 returns to its original position. At this time, rotating the first bolt 29 drives the moving block 210 to move. The cooperation between the rotating rod 211 and the moving rod 212 causes the moving rod 212 to slide within the limiting block 214. 12 drives the guide block 213 to extend and retract, locking into the flue slot 216, completing the fixation of the first mounting frame 21. At the same time, the fixing block 215 on the moving plate 27 is inserted into the flue slot, restricting the installation position of the first mounting frame 21, ensuring the accurate extension and retraction path of the guide block 213, and preventing skew and jamming. During operation, the wave-shaped grille 22 plays a key role. Its unique wave-shaped structure can effectively disperse the impact of flue gas, optimize the airflow distribution, and reduce the impact force of flue gas on the grille. The wear-resistant buffer coating 23 on the surface further reduces wear and protects the grille. When the boiler flue 1 deforms due to thermal expansion and contraction, the moving plate 27 drives the moving rod 212 to slide in the support plate 24, and the telescopic spring 28 is compressed or extended accordingly to buffer the deformation stress, maintain the tight fit between the guide block 213 and the slot 216, ensure the grille works stably under complex working conditions, and extend its service life.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A boiler flue abrasion grid structure comprising a boiler flue (1), characterized in that, Also includes: An adaptive adjustment mounting assembly (2) includes a first mounting frame (21) disposed in the boiler flue (1), a corrugated grid (22) connected in the first mounting frame (21), and a wear-resistant buffer coating (23) disposed on the corrugated grid (22). A support plate (24) is connected to the first mounting frame (21). A limit rod (26) is slidably connected inside the support plate (24). A movable plate (27) is connected to the top of the limit rod (26). A telescopic spring (28) is provided on the limit rod (26). A first bolt (29) is rotatably connected to the movable plate (27). A movable block (210) is threadedly connected to the first bolt (29). A rotating rod (211) is rotatably connected to the movable block (210). A movable rod (212) is rotatably connected to the rotating rod (211). A locking block (213) is connected to the movable rod (212). A limit block (214) is connected to the movable plate (27). The movable rod (212) is slidably connected inside the limit block (214). A slot (216) is opened inside the boiler flue (1). The locking block (213) is set inside the slot (216).

2. A boiler flue abrasion grid structure according to claim 1, characterized in that: The bottom of the limiting rod (26) is connected to a pull rod (25).

3. The boiler flue anti-wear grid structure according to claim 1, characterized in that: One end of the telescopic spring (28) is connected to the support plate (24), and the other end of the telescopic spring (28) is connected to the movable plate (27).

4. The boiler flue anti-wear grid structure according to claim 1, characterized in that: A fixing block (215) is connected to the side of the movable plate (27) near the card block (213).

5. The boiler flue anti-wear grid structure according to claim 1, characterized in that: The first mounting frame (21) is provided with a flow guide component (3), the flow guide component (3) includes a second mounting frame (31) provided on the first mounting frame (21), and a flow guide plate (32) is connected to the second mounting frame (31).

6. The boiler flue anti-wear grating structure according to claim 5, characterized in that: The second mounting frame (31) is threaded with a second bolt (33), which is threaded onto the first mounting frame (21).

Images