A high-power burner for an oven

Abstract

The invention discloses a high-power burner for an oven, which relates to the field of burners and comprises a burner body, a nozzle and an ignition device. The burner body comprises an air inlet pipe, a first buffer section, a second buffer section and a rear-section closed pipeline. The air outlet end of the nozzle is communicated with the air inlet end of the air inlet pipe, the air outlet end of the air inlet pipe is communicated with the air inlet end of the first buffer section, the air outlet end of the first buffer section is communicated with the air inlet end of the second buffer section, and the air outlet end of the second buffer section is communicated with the rear-section closed pipeline. An air inlet for air entry is provided on the nozzle, a main fire hole is provided on the second buffer section, a fire transfer hole is provided on the rear-section closed pipeline, and the ignition device is provided at a position adjacent to the fire transfer hole. The invention solves the technical problem of unstable flame of a high-power burner in an oven in the prior art during combustion.

Description

Technical Field

[0001] The invention relates to the technical field of burners, in particular to a high-power burner for an oven. Background Art

[0002] The burner is the main component that provides heat source for oven products. The fuel it uses is mainly natural gas and liquefied gas. However, the operating space of the burner in the oven is relatively limited and relatively closed. Under such unfavorable conditions for combustion, it is very difficult to maintain a large power and normal combustion. At present, some oven high-power burners cannot mix gas and air fully, resulting in incomplete combustion of gas, which easily leads to excessive CO content. The gas pressure distribution in some high-power burners is not uniform. Both of these situations are prone to produce undesirable phenomena such as yellow flame, floating fire, deflagration, flame separation, and carbon deposition during the combustion process. Summary of the invention

[0003] The purpose of the present invention is to overcome the above defects in the prior art and provide a high-power burner for an oven, which solves the technical problem of unstable flame of the high-power burner in the oven during combustion in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides a high-power burner for an oven, comprising a burner body, a nozzle and an ignition device, wherein the burner body comprises an air inlet pipe, a first buffer section, a second buffer section and a rear-section closed pipe; an air outlet end of the nozzle is connected to an air inlet end of the air inlet pipe, an air outlet end of the air inlet pipe is connected to an air inlet end of the first buffer section, an air outlet end of the first buffer section is connected to an air inlet end of the second buffer section, and an air outlet end of the second buffer section is connected to the rear-section closed pipe; an air inlet for air entry is provided on the nozzle, a main fire hole is provided on the second buffer section, a fire transfer hole is provided on the rear-section closed pipe, and the ignition device is provided at a position adjacent to the fire transfer hole.

[0005] In the above technical solution, the first buffer section is a 90° elbow.

[0006] In the above technical solution, the second buffer section is a 180° elbow.

[0007] In the above technical solution, the air inlet pipe is a radial pipe.

[0008] The above technical solution also includes an adjusting device for adjusting the size of the air inlet.

[0009] In the above technical solution, a front section pipeline is arranged between the first buffer section and the second buffer section, and a double fire hole for maintaining a stable flame is arranged on the front section pipeline.

[0010] The above technical solution also includes a structural reinforcement member for connecting and fixing the front section pipeline and the rear section closed pipeline.

[0011] The above technical solution also includes a mounting bracket for mounting and fixing the burner body.

[0012] The above technical solution also includes an ignition device mounting bracket for fixing the ignition device at a position adjacent to the fire transfer hole.

[0013] In the above technical solution, the burner body is an integrally formed component.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When the oven high-power burner of the technical solution is used, the gas is sprayed into the air intake pipe through the nozzle. In this process, the air will pass through the air intake port on the nozzle and be sprayed into the air intake pipe together with the gas. At this time, the gas and air are mixed in the air intake pipe and then flow to the first buffer section. The first buffer section can buffer the gas pressure in the front section inside the pressure-reducing burner. Then the gas and air enter the second buffer section after being decompressed in the first buffer section. At this time, the second buffer section can buffer the gas pressure in the rear section inside the pressure-reducing burner. When the gas reaches the closed pipeline in the rear section, the gas emerges from the fire transfer hole. At this time, the ignition device will ignite the fire transfer hole, and then the fire transfer hole will ignite the flame on the main fire hole after ignition. The first buffer section of the technical solution provides a primary gas-air mixing zone, and the second buffer section provides a secondary gas-air mixing zone, so that the mixing between gas and air is more sufficient, improving the safety and reliability of gas combustion, and the first buffer section and the second buffer section can make the gas pressure inside the burner body evenly distributed and flow smoothly, solving the problem of unstable flame of the high-power burner in the oven during combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a high-power burner for an oven provided by the present invention;

[0018] Figure 2 It is a structural schematic diagram of a burner main body provided by the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0020] like Figure 1-Figure 2 As shown, this embodiment provides a high-power burner for an oven, which includes a burner body 1, a nozzle 2 and an ignition device 3. The burner body 1 includes an air inlet pipe 11, a first buffer section 12, a second buffer section 13 and a rear closed pipe 14.

[0021] One end of the nozzle 2 is connected to the gas, and the other end is connected to one end of the air inlet pipe 11, and one end of the air outlet of the air inlet pipe 11 is connected to the air inlet end of the first buffer section 12. The air outlet end of the first buffer section 12 is connected to the air inlet end of the second buffer section 13. The air outlet end of the second buffer section 13 is connected to the rear section closed pipe 14. Among them, the second buffer section 13 is provided with a main fire hole 15, the rear section closed pipe 14 is provided with a fire transfer hole 16, and the ignition device 3 is arranged at a position adjacent to the fire transfer hole 16. In this embodiment, an ignition device mounting bracket 7 is preferably provided to facilitate fixing the ignition device 3 on the rear section closed pipe 14. In addition, an air inlet 31 is opened on the nozzle 2, and air enters the interior of the burner body 1 through the air inlet 31. In this embodiment, an adjustment device 4 for adjusting the size of the air inlet 31 is also preferably provided. The regulating device 4 is preferably provided with a damper 41, which is attached to the outer wall of the nozzle 2 and can rotate, wherein the area of ​​the damper 41 is larger than the area of ​​the air inlet 31. Specifically, the damper 41 can rotate on the outer wall of the nozzle 2, so that the damper 41 can block the air inlet 31 and control the size of the air inlet 31, thereby adjusting the ventilation volume of the air inlet 31. This embodiment can control the amount of air entering, to control the mixing degree of gas and air, and improve the reliability and safety during combustion.

[0022] The air intake pipe 11 of this embodiment is preferably a radial tube. The radial tube is mainly provided to increase the air pressure of the airflow, which can speed up the mixing rate between the gas and the air, and can also prevent the gas from flowing back, thereby preventing the burner of this embodiment from backfire. However, after the gas and air are pressurized by the radial tube, the air pressure of the airflow will become very large and the flow rate will be very fast, resulting in uneven distribution of gas pressure inside the burner body 1, which is prone to unstable combustion. The first buffer section 12 and the second buffer section 13 can reduce the air pressure inside the burner body 1 and reduce the flow rate of the gas, so that the flame state of the combustion on the main fire hole 15 can reach a stable state, and the combustion is more complete, thereby reducing the emission of carbon monoxide and inhibiting the generation of nitrogen oxides. In addition, the smooth flow of gas can effectively reduce the combustion noise.

[0023] The first buffer section 12 and the second buffer section 13 designed in this embodiment are used to reduce the gas pressure inside the burner body 1. The first buffer section 12 is used to buffer the gas pressure in the front section of the pressure-reducing burner body 1, and the second buffer section 13 is used to buffer the gas pressure in the rear section of the pressure-reducing burner body 1. The first buffer section 12 of this embodiment is a 90° elbow. The second buffer section 13 of this embodiment is a 180° elbow. Among them, the elbow can reduce the flow rate of the gas. The first buffer section 12 is a 90° elbow, which can greatly reduce the rate of the gas flow. The second buffer section 13 is designed as a 180° elbow, and its length is much longer than the first buffer section 12, so that the gas flow in the burner body 1 is more uniform and stable.

[0024] Specifically, gas Figure 1 As shown by the arrow in the figure, the air first passes through the nozzle 2 and then enters the intake pipe 11. In this process, the air will pass through the intake port 21 on the nozzle 2 and be injected into the intake pipe 11 together with the gas. At this time, the gas and air are mixed in the intake pipe 11, and then as shown in FIG. Figure 1 As shown by the arrow in the figure, the gas flows to the first buffer section 12, and the first buffer section 12 can buffer the gas pressure in the front section of the pressure-reducing burner body 1. Then the gas and air enter the second buffer section 13 after being decompressed in the first buffer section 12. At this time, the second buffer section 13 can buffer the gas pressure in the rear section of the pressure-reducing burner body 1. When the gas reaches the closed pipe 14 in the rear section, the gas emerges from the flame transfer hole 16. At this time, the ignition device 3 will ignite the flame transfer hole 16, and then the flame transfer hole 16 will ignite the flame on the main fire hole 15 after it ignites. The first buffer section 12 of this embodiment provides a primary gas-air mixing zone, and the second buffer section 13 provides a secondary gas-air mixing zone, so that the mixing between gas and air is more complete, improving the safety and reliability of gas combustion, and the first buffer section 12 and the second buffer section 13 can make the gas pressure inside the burner body 1 evenly distributed and flow smoothly, solving the problem of unstable flame of high-power burners in ovens during combustion.

[0025] In this embodiment, a front section pipe 17 is provided between the first buffer section 12 and the second buffer section 13, and a double fire hole 18 for maintaining flame stability is provided on the front section pipe 17. When the main fire hole 15 is ignited, the double fire hole 18 will be ignited, so that the gas burns on the double fire hole 18. Specifically, the gas passes through the first buffer section 12, and the gas flow rate is still relatively fast. The double fire hole 18 can stabilize the flame state on the main fire hole 15 and prevent the main fire hole 15 from having flame separation and flameout.

[0026] This embodiment is also preferably provided with a structural reinforcement member 5 for connecting and fixing the front section pipe 17 and the rear section sealed pipe 14. The structural reinforcement member 5 mainly connects and reinforces the front section pipe 17 and the rear section sealed pipe 14 on the left and right sides of the burner body 1 to prevent the burner from softening and sagging after being subjected to high temperature during combustion of the burner body, thereby causing the horizontal position of the burner body 1 to change.

[0027] The burner body 1 of this embodiment is preferably an integrally formed component, avoiding the disadvantages of welding and sealing, and does not require complex machine installation, which is convenient for replacement and disassembly. This embodiment is also preferably provided with a mounting bracket 6, which mounts and fixes the burner body 1 inside the oven.

[0028] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A high-power burner for an oven, comprising a burner body (1), characterized in that: It also comprises a nozzle (2) and an ignition device (3), wherein the burner body (1) comprises an air intake pipe (11), a first buffer section (12), a second buffer section (13), and a rear sealed pipe (14); The air outlet end of the nozzle (2) is connected to the air inlet end of the air inlet pipe (11), the air outlet end of the air inlet pipe (11) is connected to the air inlet end of the first buffer section (12), the air outlet end of the first buffer section (12) is connected to the air inlet end of the second buffer section (13), and the air outlet end of the second buffer section (13) is connected to the rear section closed pipe (14); the nozzle (2) is provided with an air inlet (21) for air to enter, the second buffer section (13) is provided with a main fire hole (15), the rear section closed pipe (14) is provided with a fire transfer hole (16), and the ignition device (3) is arranged at a position adjacent to the fire transfer hole (16); The first buffer section (12) is a 90° elbow, which reduces the speed of the gas flow; the second buffer section (13) is a 180° elbow; the length of the second buffer section (13) is longer than that of the first buffer section (12), so that the gas flow in the burner body (1) is uniform and stable; The air inlet pipe (11) is a radial pipe; A front section pipeline (17) is provided between the first buffer section (12) and the second buffer section (13), and a double fire hole (18) for maintaining flame stability is provided on the front section pipeline (17).

2. A high-power burner for an oven according to claim 1, characterized in that: It also includes an adjusting device (4) for adjusting the size of the air inlet (21).

3. The high-power burner for an oven according to claim 1, characterized in that: It also includes a structural reinforcement member (5) for connecting and fixing the front section pipeline (17) and the rear section sealed pipeline (14).

4. The high-power burner for an oven according to claim 1, characterized in that: It also includes a mounting and fixing frame (6) for mounting and fixing the burner body (1).

5. The high-power burner for an oven according to claim 1, characterized in that: It also includes an ignition device mounting frame (7) for fixing the ignition device (3) at a position adjacent to the fire transfer hole (16).

6. The high-power burner for an oven according to claim 1, characterized in that: The burner body (1) is an integrally formed component.

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