Full premixing device for low-nitrogen combustor

Abstract

The utility model discloses a full premixing device for a low-nitrogen combustor, and particularly relates to the field of low-nitrogen combustors, which comprises a combustor, an air inlet pipe is arranged on the front surface of the combustor, an air inlet is communicated with the top surface of the air inlet pipe, a mounting seat is arranged on the surface of the air inlet, and a connecting seat is clamped on the mounting seat. A filter cartridge is arranged on the top surface of the connecting seat; a mounting plate is arranged outside the filter cartridge, a cleaning brush is arranged on the side, facing the filter cartridge, of the mounting plate, a baffle is slidably arranged on the inner wall of the filter cartridge, a connecting ring is arranged on the top surface of the filter cartridge, and the two ends of the connecting ring are fixedly connected with the mounting plate and the baffle through connecting plates respectively. According to the utility model, the baffle is arranged on the inner wall of the filter cartridge and can move along with the cleaning brush, so that the end part of the cleaning brush can be blocked, and dust swept by the cleaning brush is prevented from falling into the filter cartridge; and the filter cartridge and the air inlet are clamped and fixed through the clamping plate, so that the filter cartridge is convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of low-NOx burner technology, specifically a fully premixed device for low-NOx burners. Background Technology

[0002] A low-NOx burner is a device that reduces nitrogen oxide (NOx) emissions during combustion by adjusting combustion parameters. Traditional burners produce NOx during combustion, which is harmful to the environment, especially damaging to the atmospheric ozone layer. Low-NOx burners effectively reduce NOx emissions by improving combustion equipment or controlling combustion conditions.

[0003] Fully premixed low-NOx burners have advantages such as complete combustion and high flame temperature. However, since the incoming air is not filtered during use, the combustion quality is affected. An existing authorized patent for a fully premixed device for low-NOx burners, publication number CN202121047978.5, describes a device that filters the incoming air by incorporating a filter assembly. Simultaneously, the motor rotates two cleaning rods, which in turn cause the cleaning brushes on the rods to wipe the surface of the filter screen, facilitating the removal of dust adhering to the filter screen.

[0004] Although the above-mentioned utility model can clean the dust on the surface of the filter screen cylinder with a cleaning brush, the dust can easily fall into the inside of the filter screen cylinder when the cleaning brush comes into contact with it because the filter screen cylinder has multiple filter holes, which affects the use of the burner.

[0005] Therefore, we have made improvements to this and proposed a fully premixed device for low-NOx burners. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a fully premixed device for a low-NOx burner, comprising a burner, an air inlet pipe fixedly disposed on the front of the burner and communicating therewith, an air inlet connected to the top surface of the air inlet pipe, a mounting base fixedly disposed on the surface of the air inlet, a connecting base snapped onto the mounting base, and a filter cartridge fixedly disposed on the top surface of the connecting base.

[0008] The filter cartridge is provided with an installation plate on its exterior, and a cleaning brush is provided on the side of the installation plate facing the filter cartridge. A baffle is slidably provided on the inner wall of the filter cartridge. A connecting ring is slidably provided on the top surface of the filter cartridge, and the two ends of the connecting ring are fixedly connected to the installation plate and the baffle respectively through a connecting plate. A top plate is fixedly provided on the top surface of the connecting ring, and a motor is installed on the top plate. The output end of the motor is fixedly connected to the top of the top plate.

[0009] As a preferred embodiment of this utility model, the top surface of the mounting base is provided with a plurality of slots evenly distributed, and the bottom surface of the connecting base is provided with a plurality of plates evenly distributed. The plates are engaged in the slots, and the plates are fixed to the mounting base by fastening bolts.

[0010] In a preferred embodiment of this invention, the outer diameter of the connecting seat is larger than the outer diameter of the filter cylinder, and the bottom surface of the mounting plate is slidably connected to the top surface of the connecting seat.

[0011] As a preferred embodiment of this utility model, the bristles on both sides of the cleaning brush are longer than the bristles in the middle, and the cleaning brush is in contact with the surface of the filter cartridge.

[0012] As a preferred embodiment of this utility model, a bracket is installed on the top plate, the bracket is rotatably connected to the top plate, and the bottom end of the bracket is installed on a connecting seat, and the motor is installed on the bracket.

[0013] In a preferred embodiment of this invention, the mounting plate is located between the bracket and the filter cartridge.

[0014] The beneficial effects of this utility model are:

[0015] In this invention, a baffle is provided on the inner wall of the filter cartridge. The baffle moves with the cleaning brush, thereby blocking the end of the cleaning brush and preventing dust swept off by the cleaning brush from falling into the filter cartridge. The filter cartridge is also fixed to the air inlet by a clip, making it easy to disassemble and assemble the filter cartridge. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a fully premixed device for a low-NOx burner according to this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a fully premixed device for a low-NOx burner according to this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of a fully premixed device for a low-NOx burner according to this utility model. Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the structure of a fully premixed device for a low-NOx burner according to this utility model. Figure 4 .

[0021] In the diagram: 1. Burner; 2. Air inlet pipe; 3. Air inlet; 4. Mounting base; 5. Connecting base; 6. Filter cartridge; 7. Motor; 8. Bracket; 9. Mounting plate; 10. Cleaning brush; 11. Clamping plate; 12. Clamping slot; 13. Fastening bolt; 14. Baffle; 15. Connecting ring. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: Figures 1 to 4 As shown, this utility model discloses a fully premixed device for a low-NOx burner, comprising a burner 1, an air inlet pipe 2 fixedly disposed on the front of the burner 1 and communicating therewith, an air inlet 3 connected to the top surface of the air inlet pipe 2, a mounting base 4 fixedly disposed on the surface of the air inlet 3, a connecting base 5 snapped onto the mounting base 4, and a filter cartridge 6 fixedly disposed on the top surface of the connecting base 5; the incoming air can be filtered through the filter cartridge 6.

[0024] A mounting plate 9 is provided on the outside of the filter cartridge 6, and a cleaning brush 10 is provided on the side of the mounting plate 9 facing the filter cartridge 6. A baffle 14 is slidably provided on the inner wall of the filter cartridge 6. The cleaning brush 10 and the baffle 14 move synchronously. The cleaning brush 10 can sweep away the dust on the surface of the filter cartridge 6. When sweeping away the dust, the baffle 14 is attached to the inner wall of the filter cartridge 6, which can act as a barrier to the cleaning brush 10 and prevent most of the swept dust from falling into the interior of the filter cartridge 6. The width of the baffle 14 can be designed to be greater than the width of the cleaning brush 10.

[0025] A connecting ring 15 is slidably mounted on the top surface of the filter cartridge 6, and both ends of the connecting ring 15 are fixedly connected to the mounting plate 9 and the baffle 14 respectively through connecting plates. The connecting ring 15 can connect the mounting plate 9 and the baffle 14, thereby driving the mounting plate 9 and the baffle 14 to move synchronously. A top plate is fixedly mounted on the top surface of the connecting ring 15, and a motor 7 is mounted on the top plate. The output end of the motor 7 is fixedly connected to the top of the top plate. The motor 7 is covered with a dustproof shell. The operation of the motor 7 can drive the top plate to rotate, and the top plate drives the connecting ring 15 to rotate, thereby making the cleaning brush 10 and the baffle 14 rotate synchronously. The motor 7 can be controlled by an existing external controller, which will not be described in detail here.

[0026] The top surface of the mounting base 4 is evenly provided with multiple slots 12, and the bottom surface of the connecting base 5 is evenly provided with multiple plates 11. The plates 11 are snapped into the slots 12, and the plates 11 are fixed to the mounting base 4 by fastening bolts 13. During installation, the plates 11 are aligned with the slots 12 and snapped into the slots 12. Then, the plates 11 are fixed to the mounting base 4 by fastening bolts 13, which enhances the stability of the connection between the connecting base 5 and the mounting base 4. The top of the air inlet 3 is located between the connecting base 5 and the filter cartridge 6.

[0027] The outer diameter of the connecting seat 5 is larger than the outer diameter of the filter cartridge 6, and the bottom surface of the mounting plate 9 is slidably connected to the top surface of the connecting seat 5. The bristles on both sides of the cleaning brush 10 are longer than the bristles in the middle, and the cleaning brush 10 is in contact with the surface of the filter cartridge 6. The mounting plate 9 drives the cleaning brush 10 to move, thereby cleaning the dust on the surface of the filter cartridge 6.

[0028] A bracket 8 is installed on the top plate, and the bracket 8 is rotatably connected to the top plate. The bottom end of the bracket 8 is installed on the connecting seat 5. The motor 7 is installed on the bracket 8, and the bracket 8 supports the motor 7. The mounting plate 9 is located between the bracket 8 and the filter cartridge 6, and the mounting plate 9 does not contact the bracket 8 during movement to prevent the bracket 8 from affecting the movement of the mounting plate 9.

[0029] During operation, a baffle 14 is installed on the inner wall of the filter cartridge 6. The baffle 14 moves together with the cleaning brush 10 under the action of the connecting ring 15 and the top plate. This baffle can block the end of the cleaning brush 10 when it sweeps dust, preventing the dust swept off by the cleaning brush 10 from falling into the filter cartridge 6. The filter cartridge 6 is also fixed to the air inlet 3 by a clamping plate 11, which makes it easy to disassemble and assemble the filter cartridge 6.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A full premixing device for a low-nitrogen burner, comprising a burner (1), a front surface of the burner (1) being fixedly provided with an air inlet pipe (2) in communication therewith, a top surface of the air inlet pipe (2) being in communication with an air inlet opening (3), characterized in that, An mounting base (4) is fixedly provided on the surface of the air inlet (3), and a connecting base (5) is snapped onto the mounting base (4). A filter cylinder (6) is fixedly provided on the top surface of the connecting base (5). The filter cylinder (6) is provided with an installation plate (9) on its exterior, and a cleaning brush (10) is provided on the side of the installation plate (9) facing the filter cylinder (6). A baffle (14) is slidably provided on the inner wall of the filter cylinder (6). A connecting ring is slidably provided on the top surface of the filter cylinder (6), and the two ends of the connecting ring are fixedly connected to the installation plate (9) and the baffle (14) respectively through the connecting plate. A top plate is fixedly provided on the top surface of the connecting ring, and a motor (7) is installed on the top plate. The output end of the motor (7) is fixedly connected to the top end of the top plate.

2. A fully premixed device for a low NOx burner according to claim 1, characterized in that, The top surface of the mounting base (4) is evenly provided with multiple slots (12), and the bottom surface of the connecting base (5) is evenly provided with multiple plates (11). The plates (11) are engaged in the slots (12), and the plates (11) are fixed to the mounting base (4) by fastening bolts (13).

3. The fully premixed device for a low-NOx burner according to claim 1, characterized in that, The outer diameter of the connecting seat (5) is larger than the outer diameter of the filter cylinder (6), and the bottom surface of the mounting plate (9) is slidably connected to the top surface of the connecting seat (5).

4. A fully premixed device for a low NOx burner according to claim 1, wherein The bristles on both sides of the cleaning brush (10) are longer than the bristles in the middle, and the cleaning brush (10) is in contact with the surface of the filter cartridge (6).

5. A fully premixed device for a low NOx burner according to claim 1, wherein A bracket (8) is installed on the top plate. The bracket (8) is rotatably connected to the top plate, and the bottom end of the bracket (8) is installed on the connecting seat (5). The motor (7) is installed on the bracket (8).

6. A fully premixed device for a low NOx burner according to claim 1, wherein The mounting plate (9) is located between the bracket (8) and the filter cartridge (6).

Images