A small low nitrogen combustion burner

Abstract

The present invention discloses a small low-nitrogen combustion burner, comprising: a combustion burner body, the combustion burner body is arranged in a cylindrical structure and a layered plate is arranged inside the combustion burner body, the layered plate is arranged in several groups and the combustion burner body forms several groups of annular grooves through several groups of layered plates, and gas nozzles and air nozzles are arranged inside the several groups of annular grooves. The combustion burner body of the present invention forms a plurality of annular grooves through the layered plates, a fixed bracket is arranged inside the annular groove and the fixed bracket is arranged in an isosceles trapezoidal structure, a gas nozzle is arranged inside the annular groove and an air nozzle is arranged outside the fixed bracket, this arrangement ensures the stability of pipeline installation, improves the structural strength of the combustion burner body, and prolongs the service life, the combustion nozzle and the air nozzle are spaced and distributed between the layered plates, and the lengths of the combustion nozzle and the air nozzle decrease from the center to the outside, so that the flame can be more concentrated and the gas can be burned more fully.

Description

Technical Field

[0001] The invention relates to the technical field of combustion burners, and more specifically to a small low-nitrogen combustion burner. Background Art

[0002] Burners can also be called burners, but they are different from the integrated burners used on small boilers. Because they are both burners, the concepts of the two are easily confused in production practice. The difference between the two is that the latter is an all-in-one machine, generally also called a burner, which includes a combustion-supporting fan, fuel pressurization and delivery pipes and ignition monitoring controllers integrated into one, suitable for small boilers and small fuel heating furnaces with a small number of injection points. The former may include ignition electrodes and flame monitoring probes, but a single burner generally does not contain a combustion-supporting fan, fuel pressurization and delivery pipes and ignition monitoring controllers. The burner and combustion-supporting fan, combustion-supporting air pipeline, fuel pressurization and delivery pipes and ignition monitoring controllers need to be arranged according to the specific structure of different heating furnaces and the requirements of the heating process. The burner has a wider range of applications than the integrated burner.

[0003] At present, the gas nozzle and air nozzle of the existing low-nitrogen combustion burner are mostly distributed in parallel, and the flame cannot be gathered, which easily causes incomplete gas combustion and easily produces low nitrogen oxides. Therefore, a new technical solution is needed to solve the problem. Summary of the invention

[0004] The purpose of the present invention is to provide a small low-nitrogen combustion burner, which has the effects of high combustion temperature and concentrated flame. At the same time, the gas nozzle and the air nozzle are distributed in a pagoda-shaped structure, which makes the combustion more complete and reduces the production of low nitrogen oxides.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a small low-nitrogen combustion burner, comprising: a combustion burner body, the combustion burner body is arranged in a cylindrical structure and a layered plate is arranged inside the combustion burner body, the layered plates are arranged in a plurality of groups and the combustion burner body forms a plurality of groups of annular grooves through the plurality of groups of layered plates, gas nozzles and air nozzles are arranged inside the plurality of groups of annular grooves, the diameter of the air nozzles is smaller than the gas nozzles, a gas inlet is arranged on the left side of the combustion burner body and an air inlet is arranged on the upper left side, the gas inlet is connected to the gas coil and the air inlet is connected to the air nozzle, and a burner outlet is arranged on the right side of the combustion burner body.

[0006] As a preferred embodiment of the present invention, the gas nozzles and air nozzles are distributed at equal intervals in a plurality of groups of annular grooves.

[0007] As a preferred embodiment of the present invention, the gas nozzles and the air nozzles are distributed in a circle, and the lengths of the gas nozzles and the air nozzles at the center decrease gradually toward the periphery, forming a pagoda-like structure.

[0008] As a preferred embodiment of the present invention, a secondary mixing combustion chamber is arranged outside the combustion burner body, and the secondary mixing combustion chamber is arranged in a cylindrical structure and is sleeved on the surface of the combustion burner body.

[0009] As a preferred embodiment of the present invention, a plurality of groups of air inlet holes are arranged inside the secondary mixing combustion chamber, and the air inlet holes are inclined toward the burner outlet.

[0010] As a preferred embodiment of the present invention, fixed brackets are arranged between the layered plates and are arranged in an isosceles trapezoidal structure. The fixed brackets form a stacked support structure and are welded and fixed to the layered plates.

[0011] As a preferred embodiment of the present invention, the gas nozzle is installed in a hole groove inside the fixed bracket and the air nozzle is installed in a gap formed between the fixed bracket and the layered plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The burner body of the present invention is provided with a secondary mixing combustion chamber on the outside. The secondary mixing combustion chamber is provided in a cylindrical structure and is sleeved on the surface of the burner body. The air inlet holes provided on the surface facilitate the entry of air and promote gas combustion. At the same time, a layered plate is provided inside the burner body and a plurality of layers of plates are provided. The burner body forms a plurality of annular grooves through the layered plates. A fixed bracket is provided inside the annular groove and the fixed bracket is provided in an isosceles trapezoidal structure. A gas nozzle is provided inside the annular groove and an air nozzle is provided outside the fixed bracket. This arrangement ensures the stability of pipeline installation while improving the structural strength of the burner body and extending its service life. The combustion nozzle and the air nozzle are spaced and distributed between the layered plates, and the lengths of the combustion nozzle and the air nozzle decrease from the center to the outside, so that the flame can be more concentrated and the gas can be burned more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a side view structural schematic diagram of the present invention;

[0016] Figure 3 It is a schematic diagram of the distribution structure of the gas nozzle and the air nozzle of the present invention.

[0017] In the figure: 1. combustion burner body; 2. secondary mixing combustion chamber; 3. air inlet; 4. gas inlet; 5. burner outlet; 6. air inlet hole; 7. layered plate; 8. fixing bracket; 9. gas nozzle; 10. air nozzle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The present invention provides a technical solution: a small low-nitrogen combustion burner, comprising: a combustion burner body 1, the combustion burner body 1 is arranged in a cylindrical structure and a layered plate 7 is arranged inside the combustion burner body 1, the layered plate 7 is arranged in a plurality of groups and the combustion burner body 1 forms a plurality of groups of annular grooves through the plurality of groups of layered plates 7, a gas nozzle 9 and an air nozzle 10 are arranged inside the plurality of groups of annular grooves, the diameter of the air nozzle 10 is smaller than the gas nozzle 9, a gas inlet 4 is arranged on the left side of the combustion burner body 1 and a gas inlet 4 is arranged on the left side of the combustion burner body 1. An air inlet 3 is arranged at the upper side, the gas inlet 4 is connected to the gas coil and the air inlet 3 is connected to the air nozzle 10, a burner outlet 5 is arranged on the right side of the burner body 1, the gas nozzle 9 and the air nozzle 10 are distributed in a circle and the length of the gas nozzle 9 and the air nozzle 10 at the center decreases gradually toward the periphery to form a pagoda structure, the combustion nozzle and the air nozzle 10 are distributed at intervals between the layered plates 7, and the length of the combustion nozzle and the air nozzle decreases gradually from the center to the outside, so that the flame can be more concentrated and the gas combustion The combustion is more complete, a secondary mixed combustion chamber 2 is arranged on the outside of the combustion burner body 1, and the secondary mixed combustion chamber 2 is arranged in a cylindrical structure and is sleeved on the surface of the combustion burner body 1, a fixed bracket 8 is arranged between the layered plates 7, and the fixed bracket 8 is arranged in an isosceles trapezoidal structure, a stacked support structure is formed between the fixed brackets 8 and is welded and fixed with the layered plates 7, and at the same time, a layered plate 7 is arranged inside the combustion burner body 1, and the layered plate 7 is arranged in several groups, the combustion burner body 1 forms a plurality of annular grooves through the layered plate 7, a fixed bracket 8 is arranged inside the annular groove, and the fixed bracket 8 is arranged in an isosceles trapezoidal structure, and a gas nozzle 9 is arranged inside and an air nozzle 10 is arranged outside, this arrangement ensures the stability of the pipeline installation, while improving the structural strength of the combustion burner body 1 and extending the service life, a secondary mixed combustion chamber 2 is arranged on the outside of the combustion burner body 1, and the secondary mixed combustion chamber 2 is arranged in a cylindrical structure and is sleeved on the surface of the combustion burner body 1, and the air inlet 6 arranged on its surface facilitates the entry of air and promotes gas combustion.

[0020] Further improvements, such as Figure 2As shown, the gas nozzles 9 and the air nozzles 10 are distributed at equal intervals in a plurality of groups of annular grooves. The gas nozzles 9 and the air nozzles 10 distributed at equal intervals make the gas flow more uniform and the combustion more complete.

[0021] Further improvements, such as Figure 1 As shown: a plurality of groups of air inlet holes 6 are arranged inside the secondary mixed combustion chamber 2, and the air inlet holes 6 are inclined toward the burner outlet 5. The inclined arrangement of the air inlet holes 6 facilitates the guidance of the airflow.

[0022] Further improvements, such as Figure 2 As shown: the gas nozzle 9 is installed in the hole groove inside the fixed bracket 8 and the air nozzle 10 is installed in the gap formed between the fixed bracket 8 and the layered plate 7. The gas nozzle 9 is installed on the inner side of the fixed bracket 8, which not only plays a protective role but also increases the stability of the installation.

[0023] The burner body 1 of the present invention is provided with a secondary mixed combustion chamber 2 on the outside. The secondary mixed combustion chamber 2 is provided in a cylindrical structure and is sleeved on the surface of the burner body 1. The air inlet holes 6 provided on the surface facilitate the entry of air and promote gas combustion. At the same time, a layered plate 7 is provided inside the burner body 1, and the layered plate 7 is provided in several groups. The burner body 1 forms a plurality of annular grooves through the layered plate 7. A fixed bracket 8 is provided inside the annular groove, and the fixed bracket 8 is provided in an isosceles trapezoidal structure. A gas nozzle 9 is provided inside the annular groove and an air nozzle 10 is provided outside. This arrangement ensures the stability of pipeline installation while improving the structural strength of the burner body 1 and extending its service life. The combustion nozzle and the air nozzle 10 are spaced apart between the layered plates 7, and the lengths of the combustion nozzle and the air nozzle decrease from the center to the outside, so that the flame can be more concentrated and the gas can be burned more fully.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A small low-nitrogen combustion burner, characterized in that: include: A combustion burner body (1), the combustion burner body (1) is arranged in a cylindrical structure and a layered plate (7) is arranged inside the combustion burner body (1), the layered plate (7) is arranged in a plurality of groups and the combustion burner body (1) forms a plurality of groups of annular grooves through the plurality of groups of layered plates (7), a gas nozzle (9) and an air nozzle (10) are arranged inside the plurality of groups of annular grooves, the diameter of the air nozzle (10) is smaller than that of the gas nozzle (9), a gas inlet (4) is arranged on the left side of the combustion burner body (1) and an air inlet (3) is arranged on the upper left side, the gas inlet (4) is connected to a gas coil and the air inlet (3) is connected to the air nozzle (10), a burner outlet (5) is arranged on the right side of the combustion burner body (1), the gas nozzle (9) and the air nozzle (10) are distributed at equal intervals in the plurality of groups of annular grooves, the gas nozzle (9) The gas nozzle (9) and the air nozzle (10) are distributed in a circle and the lengths of the gas nozzle (9) and the air nozzle (10) at the center decrease gradually toward the periphery, forming a pagoda-like structure. A secondary mixing combustion chamber (2) is arranged outside the combustion burner body (1). The secondary mixing combustion chamber (2) is arranged in a cylindrical structure and is sleeved on the surface of the combustion burner body (1). A plurality of groups of air inlet holes (6) are arranged inside the secondary mixing combustion chamber (2), and the air inlet holes (6) are inclined toward the burner outlet (5). A fixed bracket (8) is arranged between the layered plates (7), and the fixed bracket (8) is arranged in an isosceles trapezoidal structure. A stacked support structure is formed between the fixed brackets (8) and is welded and fixed to the layered plates (7). The gas nozzle (9) is installed in a hole groove inside the fixed bracket (8), and the air nozzle (10) is installed in a gap formed between the fixed bracket (8) and the layered plates (7).

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