Combustion head of ultra-low nitrogen combustion device and ultra-low nitrogen combustion device

Abstract

The utility model discloses a combustion head of an ultra-low nitrogen combustion device and the ultra-low nitrogen combustion device, and particularly relates to the technical field of combustion heads, the combustion head comprises a combustion head main body installed on the ultra-low nitrogen combustion device, and a conveying assembly used for uniformly and stably conveying natural gas is arranged in the combustion head main body; the conveying assembly comprises a flow guide pipe, and the flow guide pipe is installed in the combustion head body. According to the utility model, the plurality of flow guide plates are arranged outside the flow guide pipe, so that natural gas conveyed into the combustion head main body can be separated and scattered, the stable circulation of the natural gas can be ensured, the situation of unstable fire fluctuation caused by different air pressures of the natural gas is avoided, the safety of workers during operation is ensured, and the working efficiency is improved. And meanwhile, the drainage channel between every two adjacent drainage plates can guide the baffling natural gas to the gas holes, so that the baffling gas flows into the flow guide pipe, and the condition of turbulent flow caused by inconsistent natural gas circulation can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion heads, in particular to a combustion head of an ultra-low nitrogen combustion device and an ultra-low nitrogen combustion device. Background Art

[0002] Clean gas burners that use natural gas and other gases as fuel have been vigorously developed. Gas burners have the advantages of safety, high efficiency, and easy operation. The burner releases heat by mixing fuel and air and organizing combustion. By rationally designing the burner structure, while ensuring reliable and efficient combustion, the generation of local high-temperature areas is minimized as much as possible, and the natural gas and air are mixed evenly, thereby inhibiting the generation of nitrogen oxides during the combustion process and reducing the emission of nitrogen oxides. To this end, reducing nitrogen oxide emissions is one of the main goals of gas burner design at present.

[0003] A low-nitrogen burner is a new type of burner that aims to reduce the generation of nitrogen oxides that are harmful to the environment during combustion. As shown in the application document with the prior art publication number CN219367627U, the burner comprises a burner head body, the burner head body comprises a shell and a guide tube, and a central guide channel is provided in the guide tube. The technical solution sets a guide plate in the shell so that the natural gas entering the reflux cooling chamber rotates in a spiral shape around one end of the guide tube, thereby effectively and evenly cooling the burner head body. Compared with the prior art, the burner head body can be cooled by turbulence in the reflux cooling chamber, and at the same time, the natural gas can be refluxed to the central guide channel through the circulation hole, thereby accelerating the circulation speed of the natural gas in the reflux cooling chamber, improving the cooling effect on the burner head body, and further avoiding the burner head body from being ablated. Compared with the prior art, the cooling effect on the burner head body can be further improved.

[0004] However, the above technical solution uses the spiral guide plate to guide the flow of natural gas, but the natural gas will still gather together, resulting in different pressures of the natural gas, which will affect the flow stability of the natural gas and even affect the stability of the subsequent flame. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a combustion head of an ultra-low nitrogen combustion device and an ultra-low nitrogen combustion device. By installing a plurality of guide plates on the outside of the guide tube, the natural gas delivered to the main body of the combustion head can be separated and dispersed, thereby ensuring the stable circulation of the natural gas, avoiding the situation where the natural gas has unstable fire fluctuations due to different gas pressures, and ensuring the safety of the staff during operation. At the same time, the drainage channel between two adjacent guide plates can guide the deflected natural gas to the air hole, so that the deflected gas flows into the inside of the guide tube again, thereby avoiding the situation where the natural gas circulation is inconsistent and turbulent, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a burner head of an ultra-low nitrogen combustion device, comprising a burner head body installed on the ultra-low nitrogen combustion device, wherein a conveying assembly for uniformly and stably conveying natural gas is provided inside the burner head body;

[0007] The conveying assembly includes a flow guide pipe, which is installed inside the combustion burner body, and a flow guide hole is opened inside the flow guide pipe;

[0008] A plurality of guide plates are installed on the outside of the rear end of the guide pipe, and a guide channel is provided between two adjacent guide plates;

[0009] A plurality of air holes are provided on the outside of the burner head body, and the plurality of air holes are respectively distributed between two adjacent guide plates. By installing a plurality of guide plates on the outside of the guide tube, the natural gas delivered to the burner head body can be separated and dispersed, thereby ensuring the stable flow of natural gas, avoiding the situation where the fire fluctuates unstably due to different gas pressures, and ensuring the safety of the staff during operation.

[0010] In a preferred embodiment, a plurality of injection holes are opened on the outside of the rear end of the burner head body, and the plurality of injection holes are evenly spaced apart. Through the setting of the injection holes, natural gas can be delivered to the inside of the flame tube, and the setting of the plurality of injection holes allows the natural gas to be output in multiple directions.

[0011] In a preferred embodiment, a flame stabilizing disk is provided on the outside of the front end of the burner head body, and a plurality of flame stabilizing holes are opened through the inside of the flame stabilizing disk. The plurality of flame stabilizing holes are evenly spaced apart. Through the plurality of flame stabilizing holes on the flame stabilizing disk, the flame ejected through the injection hole can be made strong and stable.

[0012] In a preferred embodiment, a plurality of guide plates are evenly spaced apart. The arrangement of the guide plates can break up and separate the natural gas, thereby ensuring the smoothness of the natural gas flow.

[0013] In a preferred embodiment, the plurality of pores are evenly spaced and arranged, and the arrangement of the pores can transport the deflected natural gas to the interior of the guide tube again, and the arrangement of the plurality of pores can transport the deflected natural gas to the interior of the guide tube in multiple directions.

[0014] The utility model also includes an ultra-low nitrogen combustion device, including a flame tube, which is sleeved on the outside of a combustion head body, the front end of the flame tube is fixedly connected with a nozzle and a material pipe, the rear end of the nozzle is connected to the combustion head body, and natural gas is transported to the combustion head body through the nozzle. At the same time, the fuel sprayed from the material pipe burns in the flame tube, and the burning flame overflows from the outer wall of the flame tube to realize combustion.

[0015] Technical effects and advantages of the utility model:

[0016] By installing multiple guide plates on the outside of the guide pipe, the natural gas delivered to the main body of the burner head can be separated and dispersed, thereby ensuring the stable flow of natural gas, avoiding the unstable fire fluctuation caused by different gas pressure, and ensuring the safety of workers during operation. At the same time, the drainage channel between two adjacent guide plates can guide the deflected natural gas to the air hole, so that the deflected gas flows into the inside of the guide pipe, thereby avoiding turbulence caused by inconsistent natural gas flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a side cross-sectional view of the flame tube of the utility model;

[0019] Figure 3 This is the main front view of the combustion head of the utility model;

[0020] Figure 4 This is a side sectional view of the combustion head body of the utility model;

[0021] Figure 5 It is an exploded view of the guide tube of the utility model.

[0022] The accompanying drawings are marked as follows: 1. combustion head body; 2. guide tube; 3. guide hole; 4. guide plate; 5. guide channel; 6. air hole; 7. injection hole; 8. flame stabilizing disk; 9. flame stabilizing hole; 10. flame tube; 11. nozzle; 12. material pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Refer to the attached drawings in the specification Figure 1-Figure 5 The utility model provides a combustion head of an ultra-low nitrogen combustion device, comprising a combustion head body 1 installed on the ultra-low nitrogen combustion device, wherein a conveying assembly for uniformly and stably conveying natural gas is provided inside the combustion head body 1;

[0025] like Figure 4 and Figure 5As shown, the conveying assembly includes a guide tube 2, which is installed inside the combustion head body 1, and a guide hole 3 is opened inside the guide tube 2; a plurality of guide plates 4 are installed outside the rear end of the guide tube 2, and a guide channel 5 is provided between two adjacent guide plates 4; a plurality of air holes 6 are opened outside the combustion head body 1, and the plurality of air holes 6 are respectively distributed between two adjacent guide plates 4.

[0026] It is worth mentioning that by installing multiple guide plates 4 on the outside of the guide tube 2, the natural gas delivered to the burner head body 1 can be separated and dispersed, thereby ensuring the stable flow of natural gas, avoiding the situation where the fire fluctuates unstably due to different gas pressures, and ensuring the safety of the staff during operation.

[0027] like Figure 2-Figure 4 As shown, a plurality of injection holes 7 are provided on the outside of the rear end of the burner head body 1, and the plurality of injection holes 7 are evenly spaced apart. Through the setting of the injection holes 7, natural gas can be delivered to the inside of the flame tube 10, and the setting of the plurality of injection holes 7 enables the natural gas to be output in multiple directions.

[0028] like Figure 2-Figure 4 As shown, a flame stabilizing disk 8 is provided on the outside of the front end of the burner head body 1, and a plurality of flame stabilizing holes 9 are opened through the inside of the flame stabilizing disk 8. The plurality of flame stabilizing holes 9 are evenly spaced apart. Through the plurality of flame stabilizing holes 9 on the flame stabilizing disk 8, the flame ejected through the injection hole 7 can be made strong and stable.

[0029] like Figure 4 and Figure 5 As shown, multiple guide plates 4 are evenly spaced apart, and the setting of the guide plates 4 can break up and separate the natural gas to ensure the smoothness of the natural gas circulation. Multiple air holes 6 are evenly spaced apart, and the setting of the air holes 6 can transport the deflected natural gas to the inside of the guide tube 2 again. The setting of multiple air holes 6 can transport the deflected natural gas to the inside of the guide tube 2 in multiple directions.

[0030] By installing multiple guide plates 4 on the outside of the guide tube 2, the natural gas delivered to the combustion head body 1 can be separated and dispersed, thereby ensuring the stable flow of natural gas, avoiding the situation where the natural gas has unstable fire fluctuations due to different gas pressures, and ensuring the safety of the staff during operation. At the same time, the drainage channel 5 between two adjacent guide plates 4 can guide the deflected natural gas to the air hole 6, so that the deflected gas flows into the guide tube 2 again, thereby avoiding the situation where the natural gas flow is inconsistent and turbulent.

[0031] Refer to the attached drawings in the specification Figure 1 and Figure 2As shown, the utility model provides an ultra-low nitrogen combustion device, including a flame tube 10, which is sleeved on the outside of a combustion head body 1, and the front end of the flame tube 10 is fixedly connected with a nozzle 11 and a material pipe 12, and the rear end of the nozzle 11 is connected to the combustion head body 1, and natural gas is transported to the combustion head body 1 through the nozzle 11, and at the same time, the fuel sprayed from the material pipe 12 burns in the flame tube 10, and the burning flame overflows from the outer wall of the flame tube 10 to realize combustion.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A combustion head of an ultra-low nitrogen combustion device, comprising a combustion head body (1) mounted on the ultra-low nitrogen combustion device, characterized in that: The combustion head body (1) is provided with a delivery component for evenly and stably delivering natural gas; The conveying assembly comprises a flow guide pipe (2), the flow guide pipe (2) being installed inside the combustion head body (1), and a flow guide hole (3) being provided inside the flow guide pipe (2); A plurality of guide plates (4) are installed on the outside of the rear end of the guide pipe (2), and a guide channel (5) is provided between two adjacent guide plates (4); The burner head body (1) is provided with a plurality of air holes (6) on the outside, and the plurality of air holes (6) are respectively distributed between two adjacent guide plates (4).

2. The combustion head of the ultra-low nitrogen combustion device according to claim 1 is characterized in that: A plurality of injection holes (7) are provided on the outside of the rear end of the burner head body (1), and the plurality of injection holes (7) are evenly spaced and distributed.

3. The combustion head of the ultra-low nitrogen combustion device according to claim 1 is characterized in that: The front end of the burner head body (1) is sleeved with a flame stabilizing disk (8), and the flame stabilizing disk (8) is penetrated by a plurality of flame stabilizing holes (9), and the plurality of flame stabilizing holes (9) are evenly spaced and distributed.

4. The combustion head of the ultra-low nitrogen combustion device according to claim 1 is characterized in that: The plurality of guide plates (4) are evenly spaced apart.

5. The combustion head of the ultra-low nitrogen combustion device according to claim 1 is characterized in that: The plurality of air holes (6) are evenly spaced and distributed.

6. An ultra-low nitrogen combustion device having a combustion head of the ultra-low nitrogen combustion device according to any one of claims 1 to 5, characterized in that: The flame tube (10) comprises a flame tube (10) which is sleeved on the outside of a combustion head body (1); a nozzle (11) and a material pipe (12) are fixedly connected at the front end of the flame tube (10); and a rear end of the nozzle (11) is connected to the combustion head body (1).

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