Total-oxygen burner

By introducing turbulence components and spiral fan blade design into the all-oxygen burner, the problem of uneven mixing of fuel and oxygen is solved, achieving more efficient combustion and a more stable combustion process.

CN224150939UActive Publication Date: 2026-04-21SHANGHAI WEIHAI ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI WEIHAI ENERGY TECHNOLOGY CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the mixing chamber of existing oxygen-based burners, it is difficult to achieve a completely uniform mixture of fuel and oxygen, which may lead to excessive air or fuel in some areas, affecting combustion efficiency and product quality, and limiting equipment performance.

Method used

Employing a turbulence-inducing component and a spiral fan blade design, the motor-driven fan and multi-scale turbulence-inducing orifices promote uniform mixing of fuel and oxygen. The rotating airflow of the spiral fan blades further refines the mixture distribution, ensuring the optimal ratio of fuel to oxygen.

Benefits of technology

It significantly improves combustion efficiency, reduces incomplete combustion, and ensures stable operation and combustion effect of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a total oxygen type burner, and belongs to the technical field of industrial combustion. The air inlet is fixedly connected to the surface of the mixing chamber; the primary mixing tank is formed in the mixing chamber, the turbulent flow assembly comprises a motor, a fan, a rotating rod and multi-scale turbulent flow holes, the motor is fixedly connected to the surface of the mixing chamber, the rotating rod is fixedly connected to the output end of the motor, the fan is fixedly connected to the circumferential surface of the rotating rod, and the multi-scale turbulent flow holes are formed in the surface of the fan; through the design, the problem that fuel and oxygen in the mixing chamber of the total-oxygen burner are difficult to completely and uniformly mix is obviously improved, so that the problems that excessive air or fuel possibly appears locally, the combustion efficiency and the product quality are influenced, and the combustion effect is influenced due to the fact that the fuel and the oxygen in the mixing chamber of the total-oxygen burner are difficult to completely and uniformly mix are solved. And the equipment performance is limited.
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Description

Technical Field

[0001] This utility model belongs to the field of industrial combustion technology, specifically relating to an all-oxygen burner. Background Technology

[0002] As an advanced combustion technology, oxy-fuel burners have been widely used in industrial heating and melting processes in recent years. Their core advantage lies in using pure oxygen instead of air as the oxidant, which not only significantly improves combustion efficiency but also greatly reduces nitrogen oxide emissions, thereby reducing negative environmental impacts. However, despite the many advantages of oxy-fuel combustion, there is still room for improvement in the mixing effect within the mixing chamber. Current designs often fail to achieve a completely uniform mixture of fuel and oxygen, leading to situations where there may be excess air or fuel in localized areas, which in turn affects combustion efficiency and product quality. Therefore, further exploration of methods to improve the mixing effect within the mixing chamber is particularly important.

[0003] In existing technologies, it is difficult to achieve a completely uniform mixture of fuel and oxygen in the mixing chamber of an all-oxygen burner, which may result in localized excess air or fuel, affecting combustion efficiency and product quality, and limiting equipment performance. Utility Model Content

[0004] The purpose of this invention is to provide an all-oxygen burner, which aims to solve the problem that in the mixing chamber of existing all-oxygen burners, it is difficult to achieve a completely uniform mixture of fuel and oxygen, which may lead to excessive air or fuel in some areas, affecting combustion efficiency and product quality, and limiting equipment performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An all-oxygen burner, comprising:

[0007] Mixing chamber;

[0008] An air inlet, which is fixedly connected to the surface of the mixing chamber;

[0009] A preliminary mixing tank, wherein the preliminary mixing tank is located within a mixing chamber;

[0010] A flow-disrupting assembly includes a motor, a fan, a rotating rod, and multi-scale flow-disrupting holes. The motor is fixedly connected to the surface of the mixing chamber, the rotating rod is fixedly connected to the output end of the motor, the fan is fixedly connected to the circumferential surface of the rotating rod, and the multi-scale flow-disrupting holes are formed on the surface of the fan.

[0011] A disassembly assembly is disposed on one side of the mixing chamber;

[0012] A sealing assembly is disposed on one side of the mixing chamber.

[0013] As a preferred embodiment of this utility model, the disassembly assembly includes a first connecting plate, a second connecting plate, bolts, and nuts. Multiple bolts and nuts are provided. The first connecting plate is fixedly connected to the surface of the mixing chamber. The second connecting plate is disposed on one side of the first connecting plate. Multiple bolts are rotatably connected to the first and second connecting plates. Multiple nuts are threadedly connected to the circumferential surfaces of multiple bolts.

[0014] In a preferred embodiment of the present invention, the sealing assembly includes a sealing groove and a sealing gasket. The sealing groove is formed on the surface of the first connecting plate, and the sealing gasket is slidably connected to the inner wall of the sealing groove.

[0015] As a preferred embodiment of this utility model, a fuel port is fixedly connected to the surface of the second connecting plate.

[0016] As a preferred embodiment of this utility model, the multi-scale turbulence hole is composed of multiple circular holes of different sizes.

[0017] As a preferred embodiment of this utility model, a cylindrical groove is provided in the mixing chamber, and a spiral fan blade is fixedly connected inside the cylindrical groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this design, oxygen enters the mixing chamber through the air inlet, and fuel also enters through the fuel inlet. A fan is positioned directly above the oxygen inlet to rapidly enhance the uniformity of oxygen-fuel mixing, improving combustion efficiency and reducing incomplete combustion, ensuring stable operation. The motor operates and controls the fan rotation to further promote fuel-oxygen mixing. Multi-scale turbulence orifices of varying sizes generate multi-scale airflow disturbances, further enhancing the mixing effect. This design results in a more uniform mixture of fuel and oxygen, significantly improving combustion efficiency and equipment stability.

[0020] 2. In this design, when the mixed gas passes through the spiral fan blades, the rotating airflow generated by the blades further refines the mixture distribution, increases turbulence, and achieves a more uniform and thorough mixing. This design further ensures the optimal ratio of fuel to oxygen, improves combustion efficiency, and reduces incomplete combustion. Attached Figure Description

[0021] 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:

[0022] Figure 1 This is a first-view perspective perspective view of the present invention;

[0023] Figure 2 This is an exploded view of the present invention;

[0024] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0025] In the diagram: 1. Mixing chamber; 2. Air inlet; 3. Motor; 4. First connecting plate; 5. Second connecting plate; 6. Fuel port; 7. Bolt; 8. Nut; 9. Sealing groove; 10. Sealing gasket; 11. Preliminary mixing groove; 12. Spiral fan blade; 13. Fan; 14. Rotating rod; 15. Multi-scale turbulence holes. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example

[0028] Please see Figures 1-3 The present invention provides the following technical solution:

[0029] An all-oxygen burner, comprising:

[0030] Mixing chamber 1;

[0031] Air inlet 2 is fixedly connected to the surface of mixing chamber 1;

[0032] A preliminary mixing tank 11 is provided inside the mixing chamber 1;

[0033] The turbulence assembly includes a motor 3, a fan 13, a rotating rod 14, and multi-scale turbulence holes 15. The motor 3 is fixedly connected to the surface of the mixing chamber 1, the rotating rod 14 is fixedly connected to the output end of the motor 3, the fan 13 is fixedly connected to the circumferential surface of the rotating rod 14, and the multi-scale turbulence holes 15 are opened on the surface of the fan 13.

[0034] The disassembly assembly is located on one side of the mixing chamber 1;

[0035] A sealing assembly is disposed on one side of the mixing chamber 1.

[0036] In a specific embodiment of this utility model, oxygen first enters the mixing chamber 1 through the air inlet 2, and fuel enters the mixing chamber 1 through the fuel inlet 6. Then, the fan is positioned to align with the oxygen inlet. Positioning the fan to the oxygen inlet can quickly enhance the uniformity of the mixing of oxygen and fuel, improve combustion efficiency, reduce incomplete combustion, and ensure stable operation. Then, the motor 3 is operated to control the fan 13 to rotate, thereby mixing the fuel and oxygen. The multi-scale turbulence orifice 15 is composed of multiple orifices of different sizes. The orifices of different sizes on the fan blade can generate multi-scale airflow turbulence, which greatly enhances the uniformity of the mixing of oxygen and fuel, improves combustion efficiency, and helps stabilize the flame, thus solving the problem that it is difficult to achieve a completely uniform mixing of fuel and oxygen.

[0037] Please refer to the details. Figures 1-3 The disassembly assembly includes a first connecting plate 4, a second connecting plate 5, bolts 7 and nuts 8. Multiple bolts 7 and nuts 8 are provided. The first connecting plate 4 is fixedly connected to the surface of the mixing chamber 1. The second connecting plate 5 is located on one side of the first connecting plate 4. Multiple bolts 7 are rotatably connected to the first connecting plate 4 and the second connecting plate 5. Multiple nuts 8 are threadedly connected to the circumferential surface of multiple bolts 7.

[0038] In this embodiment: by twisting the four 8s off the four 7s, the device can be detached from the 5, making it convenient for later maintenance.

[0039] Please refer to the details. Figures 1-3 The sealing assembly includes a sealing groove 9 and a sealing gasket 10. The sealing groove 9 is formed on the surface of the first connecting plate 4, and the sealing gasket 10 is slidably connected to the inner wall of the sealing groove 9.

[0040] In this embodiment, the function of the sealing gasket 10 is to prevent gas from flowing out from the gap between the first connecting plate 4 and the second connecting plate 5, thereby increasing the airtightness of the equipment.

[0041] Please refer to the details. Figures 1-3 The surface of the second connecting plate 5 is fixedly connected to a fuel port 6.

[0042] In this embodiment, the function of fuel port 6 is to allow fuel to enter.

[0043] Please refer to the details. Figures 1-3 The multi-scale turbulence hole 15 is composed of multiple circular holes of different sizes.

[0044] In this embodiment, the perforations of varying sizes on the fan blades generate multi-scale airflow disturbances, effectively breaking laminar gas flow, promoting more uniform mixing of oxygen and fuel, and improving combustion efficiency. This design also enhances flame stability, reduces incomplete combustion, and improves overall thermal efficiency and operational flexibility.

[0045] Please refer to the details. Figures 1-3 A cylindrical groove is provided in the mixing chamber 1, and a spiral fan blade 12 is fixedly connected in the cylindrical groove.

[0046] In this embodiment, when the mixed gas passes through the spiral fan blade 12, the rotating airflow generated by the blade can further refine the distribution of the mixture and increase the degree of turbulence, thereby achieving a more uniform and thorough mixing.

[0047] It should be noted that the specific model of motor 3 used shall be selected by those skilled in the art, and all of the above-mentioned motor 3 and other related technologies are existing technologies, which will not be elaborated upon in this solution.

[0048] The working principle and usage process of this utility model are as follows: First, oxygen enters the mixing chamber 1 through the air inlet 2, and fuel enters the mixing chamber 1 through the fuel inlet 6. Then, the fan is positioned to align with the oxygen inlet. Positioning the fan towards the oxygen inlet rapidly enhances the uniformity of oxygen-fuel mixing, improves combustion efficiency, reduces incomplete combustion, and ensures stable operation. Next, the motor 3 is activated to control the fan 13 to rotate, thus mixing the fuel and oxygen. The multi-scale turbulence orifice 15, composed of multiple orifices of varying sizes, generates multi-scale airflow turbulence on the fan blades, greatly enhancing the uniformity of oxygen-fuel mixing and improving combustion efficiency. Then, when the mixed gas passes through the spiral fan blade 12, the rotating airflow generated by the blades further refines the distribution of the mixture and increases the degree of turbulence, thereby achieving a more uniform and thorough mixing. Finally, the thoroughly mixed gas flows into the combustion zone and undergoes a combustion reaction under the action of the ignition source, releasing energy. Through the above design, the problem of the difficulty in achieving a completely uniform mixture of fuel and oxygen in the mixing chamber of the all-oxygen burner has been significantly improved. This solves the problem that the difficulty in achieving a completely uniform mixture of fuel and oxygen in the mixing chamber of the all-oxygen burner, which may lead to excessive air or fuel in some areas, affecting combustion efficiency and product quality, and limiting equipment performance.

[0049] 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 total oxygen burner characterized by: The utility model relates to a kind of fuel mixing device, including: Mixing chamber (1); Air inlet (2), the air inlet (2) is fixedly connected to the surface of mixing chamber (1); Preliminary mixing tank (11), the preliminary mixing tank (11) is opened in mixing chamber (1); Turbulence component, the turbulence component includes motor (3), fan (13), rotating rod (14) and multiple scale turbulence hole (15), the motor (3) is fixedly connected to the surface of mixing chamber (1), the rotating rod (14) is fixedly connected to the output end of motor (3), the fan (13) is fixedly connected to the circumferential surface of rotating rod (14), the multiple scale turbulence hole (15) is opened in the surface of fan (13); Dismantling component, the dismantling component is arranged in one side of mixing chamber (1); Sealing component, the sealing component is arranged in one side of mixing chamber (1).

2. A total oxygen burner as claimed in claim 1, characterized in that: The dismantling component includes first connecting plate (4), second connecting plate (5), bolt (7) and nut (8), the bolt (7) and nut (8) are equipped with multiple, the first connecting plate (4) is fixedly connected to the surface of mixing chamber (1), the second connecting plate (5) is arranged in one side of first connecting plate (4), multiple the bolt (7) is rotatably connected in first connecting plate (4) and second connecting plate (5), multiple the nut (8) is respectively threadedly connected on the circumferential surface of multiple bolt (7).

3. A total oxygen burner as claimed in claim 2, characterized in that: The sealing component includes sealing groove (9) and sealing pad (10), the sealing groove (9) is opened in the surface of first connecting plate (4), the sealing pad (10) is slidably connected to the inner wall of sealing groove (9).

4. A total oxygen burner as claimed in claim 3, characterized in that: The surface of the second connecting plate (5) is fixedly connected with fuel port (6).

5. A total oxygen burner as claimed in claim 4, characterized in that: The multiple scale turbulence hole (15) is composed of multiple circular holes with different sizes.

6. A total oxygen burner as claimed in claim 5, characterized in that: The cylindrical groove is opened in the mixing chamber (1), and the helical fan blade (12) is fixedly connected in the cylindrical groove.