Low-nitrogen combustor

Abstract

The utility model discloses a low-nitrogen burner, and belongs to the technical field of low-nitrogen burners, the low-nitrogen burner comprises a burner body, an exhaust pipe is arranged on the burner body, and a filtering mechanism is arranged in the exhaust pipe. According to the low-nitrogen combustor, gas enters the fixed box, is filtered through the first filter screen and then penetrates through the holes formed in the two baffles, and when poisonous and harmful gas enters the space between the two baffles, the poisonous and harmful gas is adsorbed and purified through activated carbon placed between the two baffles; and then the gas passes through the second filter screen to be filtered, so that the toxic and harmful gas can be filtered and purified, and the emission of the toxic and harmful gas is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low-nitrogen burners, in particular to a low-nitrogen burner. Background Technique

[0002] A low-nitrogen burner is to add a blower, an induced draft fan, and a frequency converter to the traditional burner, use a control valve and multiple circuits to integrate, so that clean energy and the burner operation can provide higher efficiency for the boiler. The reason for using a low-nitrogen burner is that it can produce less nitrogen oxides compared with ordinary burners. Nitrogen oxides refer to compounds composed of only nitrogen and oxygen elements, including various compounds, and most of the nitrogen oxides are toxic and harmful gases such as nitric oxide and nitrogen dioxide.

[0003] For example, the utility model with the publication number CN 220728268 U discloses an environment-friendly low-nitrogen burner, including a burner body. One side of the burner body is provided with an exhaust pipe. A filter is installed inside the exhaust pipe, and the filter is slidably connected with the exhaust pipe. The four sides of the filter are provided with mesh holes. A protective cover is arranged on the top of the filter. A locking mechanism is arranged between the filter and the exhaust pipe, and a limiting mechanism is arranged between the protective cover and the filter. The air discharged from the burner body is discharged through the exhaust pipe. When the gas passes through the exhaust pipe, the activated carbon inside the filter adsorbs and purifies nitrogen, thereby effectively reducing the emission of nitrogen. After using for a period of time, the effect of the activated carbon decreases. Rotate the limiting plates on both sides of the protective cover. The limiting plates rotate through the rotating shaft, and then pull the handle to open the protective cover, thereby realizing the replacement of the activated carbon. The structure is simple and easy to operate.

[0004] In the process of implementing the present application, it is found that this technology has the following problems: placing the activated carbon in the diamond mesh, over time, it is easy to cause the activated carbon to crack. When taking it out, due to shaking, the cracked debris of the activated carbon may easily pass through the diamond mesh and remain in the exhaust pipe, causing cleaning difficulties for workers. If the debris is not cleaned in time, it may enter other equipment, thereby causing damage to the equipment. Content of the Utility Model

[0005] The utility model provides a low-nitrogen burner, which has the advantage of preventing the debris of the activated carbon from passing through the diamond mesh and remaining in the exhaust pipe when taken out, so as to solve the problem that the debris of the activated carbon passes through the diamond mesh and remains in the exhaust pipe when taken out.

[0006] The utility model provides the following technical solution: a low-nitrogen burner, including a burner body, an exhaust pipe is arranged on the burner body, and a filtering mechanism is arranged inside the exhaust pipe;

[0007] The filtering mechanism includes a notch, a fixed box, a fixing plate, two connecting grooves, a fixing component, a locking component and a filtering component. The notch is opened at the bottom of the exhaust pipe. The fixed box is arranged in the notch. The bottom and corresponding two sides of the fixed box are open. The fixing plate is connected to the exhaust pipe through the fixing component. The fixing plate can seal the notch. Two connecting grooves are opened at the bottom of the fixing plate. The filtering component is arranged in the fixed box, and the locking component is arranged between the fixing plate and the fixed box.

[0008] Further, the filtering component includes a first limiting groove, a second limiting groove, a first filter screen, a second filter screen and two baffles. The first limiting groove and the second limiting groove are opened on the inner wall of the fixed box. The side parts of the first filter screen and the second filter screen are respectively arranged in the first limiting groove and the second limiting groove. The first filter screen and the second filter screen are respectively in sliding fit with the first limiting groove and the second limiting groove. Two baffles are fixedly installed in the fixed box and are located between the first filter screen and the second filter screen. A plurality of holes are arranged on each baffle. Activated carbon is arranged between the two baffles.

[0009] Further, the fixing component includes two fixing rods, two fixing blocks, two fixing grooves and two limiting units. One ends of the two fixing rods are fixedly installed at the bottom of the exhaust pipe. The two fixing rods are symmetrically arranged on both sides of the notch. The two fixing blocks are respectively rotatably connected to the other ends of the two fixing rods. The two fixing grooves are respectively opened at the bottoms of the corresponding fixing blocks. The two limiting units are respectively arranged in the corresponding fixing grooves. The tops of the two fixing blocks are in contact with and in sliding fit with the bottom of the fixing plate. The two connecting grooves and the corresponding fixing grooves are on the same horizontal line.

[0010] Further, the limiting unit includes a limiting rod, a spring and a pull rod. The limiting rod is arranged in the fixing groove and is in sliding fit with the fixing groove. One end of the pull rod is fixedly connected to the limiting rod, and the other end penetrates through the fixing groove and is in sliding fit with the fixing groove. The spring is sleeved on the pull rod. One end of the spring is fixedly connected to the limiting rod, and the other end is fixedly connected to the inner wall of the fixing groove.

[0011] Further, the locking component includes two rectangular grooves, a connecting rod and a connecting column. The two rectangular grooves are respectively opened on the two corresponding inner walls of the fixed box. One end of the connecting column penetrates through the fixing plate and is rotatably connected to the fixing plate. The middle part of the connecting rod is fixedly connected to the end of the connecting column that penetrates through the fixing plate. The two ends of the connecting rod are respectively in sliding fit with the corresponding rectangular grooves.

[0012] Furthermore, a limiting block is fixedly installed at one end of the pull rod passing through the fixed slot.

[0013] Compared with the prior art, the utility model provides a low-nitrogen burner, which has the following beneficial effects:

[0014] For this low-nitrogen burner, gas enters the fixed box and is filtered through the first filter screen, and then passes through a number of holes opened on the two baffles. When toxic and harmful gases enter between the two baffles, the activated carbon placed between the two baffles is used to adsorb and purify the harmful gases, and then the gas passes through the second filter screen for filtration, which can filter and purify the toxic and harmful gases and reduce the emission of toxic and harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic diagram of the cross-sectional structure of the exhaust pipe of the utility model;

[0017] Figure 3 is a schematic diagram of the cross-sectional structure of the fixed box of the utility model;

[0018] Figure 4 is a schematic diagram of the cross-sectional structure of the fixing component of the utility model;

[0019] Figure 5 is the utility model Figure 4 an enlarged view of part A in;

[0020] Figure 6 is the utility model Figure 4 an enlarged view of part B in.

[0021] In the figure: 1, burner body; 2, exhaust pipe; 3, filtering mechanism; 301, notch; 302, fixed box; 303, fixing plate; 304, connecting groove; 305, fixing component; 3051, fixing rod; 3052, fixing block; 3053, fixed slot; 3054, limiting unit; 30541, limiting rod; 30542, spring; 30543, pull rod; 306, locking component; 3061, rectangular groove; 3062, connecting rod; 3063, connecting column; 307, filtering component; 3071, first limiting groove; 3072, second limiting groove; 3073, first filter screen; 3074, second filter screen; 3075, baffle; 4, limiting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes the present utility model in conjunction with specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the drawings is for better explanation. The structure of the present utility model necessarily extends beyond these limited embodiments. For some equivalent replacement schemes or common means, no detailed description will be given herein, but they still fall within the protection scope of this application.

[0023] Figures 1 - 6 is the best embodiment of the present utility model. The following further describes the present utility model in conjunction with the attached Figures 1 - 6 drawings.

[0024] The present utility model discloses a low-nitrogen burner, which includes a burner body 1. An exhaust pipe 2 is provided on the burner body 1, and a filtering mechanism 3 is provided in the exhaust pipe 2.

[0025] In this embodiment, when the burner body 1 is working, the toxic and harmful gases released during operation will be discharged through the exhaust pipe 2, and the toxic and harmful gases will be filtered by the filtering mechanism 3.

[0026] Specifically, the filtering mechanism 3 includes a notch 301, a fixed box 302, a fixing plate 303, two connecting slots 304, a fixing component 305, a locking component 306, and a filtering component 307. The notch 301 is opened at the bottom of the exhaust pipe 2. The fixed box 302 is arranged in the notch 301. The fixed box 302 is in a trough shape with an opening facing the notch 301. The fixing plate 303 is arranged on the lower side of the fixed box 302. The fixing plate 303 is connected to the exhaust pipe 2 through the fixing component 305. The fixing plate 303 closes the notch 301. Two connecting slots 304 are opened at the bottom of the fixing plate 303. The filtering component 307 is arranged in the fixed box 302. The locking component 306 is arranged between the fixed box 302 and the fixing plate 303.

[0027] In this embodiment, the notch 301 can be sealed by the fixing plate 303. When the toxic and harmful gases enter the fixed box 302, they are filtered by the filtering component 307 in the fixed box 302, and the fixing component 305 can fixedly connect the fixing plate 303 and the fixed box 302.

[0028] Specifically, the filtering component 307 includes a first limiting groove 3071, a second limiting groove 3072, a first filter screen 3073, a second filter screen 3074, and two baffles 3075. The first limiting groove 3071 and the second limiting groove 3072 are both formed on the inner wall of the fixed box 302 and are respectively located at both ends of the fixed box 302. The side portions of the first filter screen 3073 and the second filter screen 3074 are respectively arranged in the first limiting groove 3071 and the second limiting groove 3072. The first filter screen 3073 and the second filter screen 3074 are respectively in sliding fit with the first limiting groove 3071 and the second limiting groove 3072. The two baffles 3075 are fixedly installed in the fixed box 302 and are located between the first filter screen 3073 and the second filter screen 3074. The two baffles 3075 are symmetrically arranged at both ends of the fixed box 3072. A plurality of holes are provided on each baffle 3075. Activated carbon is arranged between the two baffles 3075.

[0029] In this embodiment, when it is necessary to filter toxic and harmful gases, the gases enter the fixed box 302 at this time and are filtered by the first filter screen 3073, and then pass through a plurality of holes formed in the two baffles 3075. When the toxic and harmful gases enter between the two baffles 3075, the harmful gases are adsorbed and purified by the activated carbon placed between the two baffles 3075. Then the gases pass through the second filter screen 3074 for filtering. The fixing plate 303 can fix the first filter screen 3073 and the second filter screen 3074 to prevent the first filter screen 3073 and the second filter screen 3074 from disengaging from the first limiting groove 3071 and the second limiting groove 3072.

[0030] Specifically, the fixing component 305 includes two fixing rods 3051, two fixing blocks 3052, two fixing grooves 3053, and two limiting units 3054. One ends of the two fixing rods 3051 are fixedly installed at the bottom of the exhaust pipe 2. The two fixing rods 3051 are symmetrically arranged on both sides of the notch 301. The two fixing blocks 3052 are respectively rotatably connected to the two fixing rods 3051. The two fixing grooves 3053 are respectively formed at the bottoms of the corresponding fixing blocks 3052. The two limiting units 3054 are respectively arranged in the corresponding fixing grooves 3053. The tops of the two fixing blocks 3052 are in contact with and in sliding fit with the bottom of the fixing plate 303. The two connecting grooves 304 are arranged opposite to the corresponding fixing grooves 3053.

[0031] In this implementation, in the initial state, the fixing plate 303 is blocked by two fixing blocks 3052. When it is necessary to replace the activated carbon, the first filter screen 3073, and the second filter screen 3074 between the two baffle plates 3075, the staff rotates the two fixing blocks 3052 by 180 degrees. At this time, the fixing blocks 3052 drive the limiting unit 305 to rotate around the fixing rod 3051. At this time, the two fixing blocks 3052 will no longer block the fixing plate 303. At this time, the staff can take out the fixing plate 303 from the notch 301, and then the replacement of the first filter screen 3073, the second filter screen 3074, and the activated carbon can be carried out.

[0032] Specifically, the limiting unit 3054 includes a limiting rod 30541, a spring 30542, and a pull rod 30543. One end of the fixing groove 3053 away from the fixing plate 303 is closed. The limiting rod 30541 is arranged in the fixing groove 3053 and is slidably matched with the fixing groove 3053. One end of the pull rod 30543 is fixedly connected to the limiting rod 30541, and the other end penetrates through the fixing groove 3053 and is slidably matched with the fixing groove 3053. The spring 30542 is sleeved on the pull rod 30543. One end of the spring 30542 is fixedly connected to the limiting rod 30541, and the other end is fixedly connected to the inner wall of the fixing groove 3053.

[0033] In this implementation, when it is necessary to take out the fixing block 3052, in the initial state, the limiting rod 30541 is located in the connecting groove 304, and the spring 30542 is in a compressed state. At this time, by manually pulling the pull rod 30543, the pull rod 30543 drives the limiting rod 30541, so that the limiting rod 30541 slides out of the connecting groove 304 and enters the fixing groove 3053. At this time, the limiting rod 30541 will no longer limit the fixing block 3052. When the connecting groove 304 is aligned with the fixing groove 3053, the limiting rod 30541 is not blocked by the fixing plate 303, and the spring 30542 drives the pull rod 30543 and the limiting rod 30541 to rebound, so that the lower part of the limiting rod 30541 enters the connecting groove 304 and can limit the fixing block 3052.

[0034] Specifically, the locking assembly 306 includes two rectangular grooves 3061, a connecting rod 3062, and a connecting column 3063. The two rectangular grooves 3061 are respectively opened on the corresponding two inner walls of the fixing box 302. One end of the connecting column 3063 penetrates through the fixing plate 303 and is rotatably connected to the fixing plate 303. The middle of the connecting rod 3062 is fixedly connected to the connecting column 3063. The two ends of the connecting rod 3062 are respectively slidably matched with the corresponding rectangular grooves 3061.

[0035] In this implementation, in the initial state, both ends of the connecting rod 3062 are located in the two rectangular grooves 3061, and the fixing plate 303 and the fixing box 302 are locked. The fixing plate 303 and the fixing box 302 are in a connected state. At this time, by manually rotating the connecting column 3063, the connecting column 3063 drives the connecting rod 3062 to rotate, so that the connecting rod 3062 slides along the rectangular groove 3061 and disengages from the rectangular groove 3061. At this time, the fixing plate 303 and the fixing box 302 will no longer be connected. At this time, the staff pulls the connecting column 3063, and the connecting column 3063 drives the fixing plate 303 and the connecting rod 3062 to disengage from the fixing box 302. At this time, the staff will replace the activated carbon, the first filter screen 3073 and the second filter screen 3074 between the two baffles 3075. By manually pulling the first filter screen 3073 and the second filter screen 3074, the first filter screen 3073 and the second filter screen 3074 come out along the first limiting groove 3071 and the second limiting groove 3072 respectively.

[0036] Specifically, a limiting block 4 is fixedly installed at the outer end of the pull rod 30543.

[0037] In this implementation, the pull rod 30543 can be pulled more conveniently through the limiting block 4.

[0038] Working principle and usage process of the utility model: When the burner body 1 is working, the toxic and harmful gases released during operation will be discharged through the exhaust pipe 2. At this time, the gas enters the fixed box 302 and is filtered through the first filter screen 3073, and then passes through several holes opened on the two baffles 3075. When the toxic and harmful gases enter between the two baffles 3075, the harmful gases are adsorbed and purified by the activated carbon placed between the two baffles 3075, and then the gas passes through the second filter screen 3074 for filtration. When the filtration is completed and it is necessary to replace the activated carbon, the first filter screen 3073 and the second filter screen 3074, at this time, manually pull the pull rod 30543. The pull rod 30543 drives the limit rod 30541, so that the limit rod 30541 comes out of the connection slot 304 and enters the fixed slot 3053. At this time, the limit rod 30541 will no longer limit the fixed block 3052. The staff rotates the two fixed blocks 3052 by 180 degrees. At this time, the fixed block 3052 drives the limit unit 3054 to rotate around the fixed rod 3051. At this time, the two fixed blocks 3052 will no longer be blocked by the fixed plate 303. At this time, the staff takes out the fixed plate 303 from the notch 301, and the fixed plate 303 drives the fixed box 302 to be taken out synchronously. At this time, manually rotate the connecting column 3063, and the connecting column 3063 drives the connecting rod 3062 to rotate, so that the connecting rod 3062 slides along the rectangular slot 3061 and disengages from the rectangular slot 3061. At this time, the fixed plate 303 and the fixed box 302 will no longer be connected. At this time, the staff pulls the connecting column 3063, and the connecting column 3063 drives the fixed plate 303 and the connecting rod 3062 to disengage from the fixed box 302. At this time, the fixed plate 303 no longer blocks the bottom opening of the fixed box 302. At this time, the staff will replace the activated carbon, the first filter screen 3073 and the second filter screen 3074 between the two baffles 3075. By manually pulling the first filter screen 3073 and the second filter screen 3074, the first filter screen 3073 and the second filter screen 3074 are respectively taken out along the first limit slot 3071 and the second limit slot 3072.

[0039] The above is only the preferred embodiment of the utility model, and it is not a limitation of the utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the technical solution content of the utility model still belong to the protection scope of the technical solution of the utility model.

Claims

1. A low-nitrogen burner, comprising a burner body (1), characterized in that: An exhaust pipe (2) is provided on the burner body (1), and a filtering mechanism (3) is provided in the exhaust pipe (2). The filtering mechanism (3) includes a notch (301), a fixed box (302), a fixing plate (303), two connecting grooves (304), a fixing component (305), a locking component (306) and a filtering component (307). The notch (301) is opened at the bottom of the exhaust pipe (2), the fixed box (302) is arranged in the notch (301), the bottom and corresponding two sides of the fixed box (302) are open, the fixing plate (303) is connected to the exhaust pipe (2) through the fixing component (305), the fixing plate (303) can seal the notch (301), two connecting grooves (304) are opened at the bottom of the fixing plate (303), the filtering component (307) is arranged in the fixed box (302), and the locking component (306) is arranged between the fixing plate (303) and the fixed box (302).

2. The low-nitrogen burner according to claim 1, characterized in that: The filtering component (307) includes a first limiting groove (3071), a second limiting groove (3072), a first filter screen (3073), a second filter screen (3074) and two baffles (3075). The first limiting groove (3071) and the second limiting groove (3072) are opened on the inner wall of the fixed box (302), the side parts of the first filter screen (3073) and the second filter screen (3074) are respectively arranged in the first limiting groove (3071) and the second limiting groove (3072), the first filter screen (3073) and the second filter screen (3074) are respectively in sliding fit with the first limiting groove (3071) and the second limiting groove (3072), two baffles (3075) are fixedly installed in the fixed box (302), located between the first filter screen (3073) and the second filter screen (3074), several holes are arranged on each baffle (3075), and activated carbon is arranged between the two baffles (3075).

3. The low-nitrogen burner according to claim 2, wherein: The fixing component (305) includes two fixing rods (3051), two fixing blocks (3052), two fixing grooves (3053) and two limiting units (3054). One ends of the two fixing rods (3051) are fixedly installed at the bottom of the exhaust pipe (2), the two fixing rods (3051) are symmetrically arranged on both sides of the notch (301), the two fixing blocks (3052) are respectively rotatably connected to the other ends of the two fixing rods (3051), the two fixing grooves (3053) are respectively opened at the bottoms of the corresponding fixing blocks (3052), the two limiting units (3054) are respectively arranged in the corresponding fixing grooves (3053), the tops of the two fixing blocks (3052) are abutted against and in sliding fit with the bottom of the fixing plate (303), and the two connecting grooves (304) and the corresponding fixing grooves (3053) are on the same horizontal line.

4. The low-nitrogen burner according to claim 3, characterized in that: The limiting unit (3054) includes a limiting rod (30541), a spring (30542) and a pull rod (30543). The limiting rod (30541) is arranged in the fixed groove (3053) and is in sliding fit with the fixed groove (3053). One end of the pull rod (30543) is fixedly connected to the limiting rod (30541), and the other end penetrates through the fixed groove (3053) and is in sliding fit with the fixed groove (3053). The spring (30542) is sleeved on the pull rod (30543). One end of the spring (30542) is fixedly connected to the limiting rod (30541), and the other end is fixedly connected to the inner wall of the fixed groove (3053).

5. The low-nitrogen burner according to claim 4, wherein: The locking assembly (306) includes two rectangular grooves (3061), a connecting rod (3062) and a connecting column (3063). The two rectangular grooves (3061) are respectively formed in the corresponding two inner walls of the fixed box (302). One end of the connecting column (3063) penetrates through the fixing plate (303) and is rotatably connected to the fixing plate (303). The middle of the connecting rod (3062) is fixedly connected to the end of the connecting column (3063) penetrating through the fixing plate (303). The two ends of the connecting rod (3062) are respectively in sliding fit with the corresponding rectangular grooves (3061).

6. The low-nitrogen burner according to claim 4, characterized in that: A limiting block (4) is fixedly installed at one end of the pull rod (30543) penetrating through the fixed groove (3053).

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