A multi-stage cyclone ultra-low oxygen combustor

Abstract

This utility model relates to the field of burners and discloses a multi-stage swirl-type ultra-low oxygen burner, including a shell, a primary mixing component at the rear of the shell, a swirl component in the middle of the shell, a dispersion plate at the rear of the swirl component, and an outer plate at the front of the swirl component. The shell includes a housing, and the dispersion plate and outer plate are fixedly connected to the housing. A connecting pipe is fixedly connected to the rear side of the housing, and a cover is fixedly connected to the rear side of the connecting pipe. Mounting brackets are fixedly connected to the rear inner wall of the cover and the front inner wall of the connecting pipe. In this utility model, by setting up the cooperation between the connecting pipe, cover, mounting bracket, connecting shaft, blades, mixing blades, etc., the primary mixing component can drive the blades to rotate through the airflow, thereby enabling the primary mixing component to perform preliminary mixing of airflow and fuel. Its structure is simple, maintenance cost is low, and it is more practical.

Description

Technical Field

[0001] This utility model relates to the field of burners, and in particular to a multi-stage swirl-type ultra-low oxygen burner. Background Technology

[0002] A burner is a device used to mix and ignite fuel and oxygen to produce heat, light, or power. Multi-stage swirl-type ultra-low oxygen burners can improve the mixing efficiency of fuel and air through swirl technology, ensuring more complete combustion.

[0003] A search revealed Chinese Patent Publication No. CN218820366U, which discloses a flue gas recovery swirl burner. The burner includes a shell, with an outer ring and a transition ring fixedly installed on the inner side of the shell. An inner plate and a transition plate are fixedly installed on the inner sides of the outer ring and the transition ring, respectively. An injection pipe is fixedly installed on the inner plate and the transition plate through an inner opening. A combustion hood is rotatably connected to the top of the injection pipe. The beneficial effects of this invention are: the combustion hood allows for the intermediate storage of fuel injected from the injection pipe; the main rotating rod drives the first gear, which in turn drives the first toothed ring on the outer side of the combustion hood, causing the main rotating rod to rotate the combustion hood synchronously, thus evenly discharging the fuel inside the combustion hood outwards; and the first guide hole on the transition ring allows the high-temperature flue gas, after being swirled by the swirl fan, to be uniformly adjusted through the transition ring, thereby evenly discharging it to the outer ring position, thus improving the overall uniformity of fuel combustion in the burner.

[0004] The aforementioned device, although equipped with components such as a main rotating rod and gears to drive components such as the combustion hood and swirl fan to deliver airflow and oil mist or pulverized coal more evenly for better combustion, has a relatively complex structure that requires the operation of components such as motors and gears. This not only results in high costs and time-consuming and labor-intensive maintenance, but also reduces the service life of gears and other components due to their long-term operation in an environment saturated with pulverized coal or oil mist, posing a risk of reduced device lifespan. Therefore, it is not practical enough. To address these issues, a multi-stage swirl-type ultra-low oxygen burner is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-stage swirl-type ultra-low oxygen burner, which aims to improve the operation of the existing technology, which is relatively complex and requires the use of components such as motors and gears. This not only results in higher costs and more time-consuming and labor-intensive maintenance, but also reduces the service life of gears and other components due to long-term operation in a working environment saturated with coal dust or oil mist, posing a risk of reduced device lifespan.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-stage swirl-type ultra-low oxygen burner, comprising a shell, a primary mixing component disposed at the rear of the shell, a swirl component disposed in the middle of the shell, a dispersion plate disposed at the rear of the swirl component, and an outer plate disposed at the front of the swirl component. The shell includes a housing, and the dispersion plate and the outer plate are fixedly connected to the housing. A connecting pipe is fixedly connected to the rear side of the housing, and a cover is fixedly connected to the rear side of the connecting pipe. Mounting brackets are fixedly connected to the rear inner wall of the cover and the front inner wall of the connecting pipe. The primary mixing component includes a connecting shaft, which is rotatably connected to two mounting brackets. Blades are fixedly connected to the rear of the connecting shaft, and the blades are disposed inside the cover. Multiple mixing blades are fixedly connected to the outer wall of the connecting shaft.

[0007] As a further description of the above technical solution:

[0008] The swirl assembly includes a mounting plate, which is fixedly connected to the housing, and a guide cone is fixedly connected to the rear of the mounting plate.

[0009] As a further description of the above technical solution:

[0010] A vortex cone is fixedly connected to the front side of the mounting plate.

[0011] As a further description of the above technical solution:

[0012] The mounting plate has multiple connection ports in the middle.

[0013] As a further description of the above technical solution:

[0014] The swirling cone is externally fixedly connected with multiple spiral blades.

[0015] As a further description of the above technical solution:

[0016] An air intake pipe is fixedly connected to the front side of the cover.

[0017] As a further description of the above technical solution:

[0018] A feed pipe is fixedly connected to the left side of the connecting pipe.

[0019] As a further description of the above technical solution:

[0020] The outer panel has a spray nozzle in the middle.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting up the cooperation between components such as connecting pipe, cover, mounting bracket, connecting shaft, blade, mixing blade, etc., the primary mixing component can drive the blade to rotate through airflow, thereby enabling the primary mixing component to perform preliminary mixing of airflow and fuel. Its structure is simple, maintenance cost is low, and it is more practical.

[0023] 2. In this utility model, by setting up the interaction between components such as the mounting plate, guide cone, swirling cone, connecting port, and spiral blade, the device can achieve static mixing of airflow and fuel through the flow of airflow and fuel, and form a swirling flow between airflow and fuel, thereby improving combustion efficiency and effectiveness, and making it more practical. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a multi-stage swirl-type ultra-low oxygen burner proposed in this utility model.

[0025] Figure 2 This is a three-dimensional cross-sectional view of the outer shell of a multi-stage swirl-type ultra-low oxygen burner proposed in this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram showing the shell, premixing component, and swirl component of a multi-stage swirl-type ultra-low oxygen burner proposed in this utility model.

[0027] Legend:

[0028] 1. Outer shell; 2. Initial mixing assembly; 3. Swirl assembly; 4. Dispersion plate; 5. Outer plate; 31. Mounting plate; 32. Guide cone; 33. Swirl cone; 311. Connection port; 331. Spiral blade; 11. Shell; 12. Connecting pipe; 13. Cover; 14. Air inlet pipe; 15. Mounting bracket; 16. Feed pipe; 21. Connecting shaft; 22. Blade; 23. Mixing blade; 51. Spray outlet. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1-3This utility model provides an embodiment of a multi-stage swirl-type ultra-low oxygen burner, including a shell 1, which is the shell of the ultra-low oxygen burner and is used to connect various components. A pre-mixing component 2 is provided at the rear of the shell 1, which is used to cooperate in the initial mixing of gas and fuel. A swirl component 3 is provided in the middle of the shell 1, which is used to generate swirl. A dispersion plate 4 is provided at the rear of the swirl component 3, which is used to cooperate in the dispersion of gas and fuel for more uniform mixing. An outer plate 5 is provided at the front of the swirl component 3. The shell 1 includes a housing 11, which is used to connect various components. The dispersion plate 4 and the outer plate 5 are both fixedly connected to the housing 11. An outlet 51 is opened in the middle of the outer plate 5 to cooperate with the output of the burner.

[0031] Furthermore, a connecting pipe 12 is fixedly connected to the rear side of the housing 11 for connecting various components. A cover 13 is fixedly connected to the rear side of the connecting pipe 12 for installing the primary mixing component 2. Mounting brackets 15 are fixedly connected to the rear inner wall of the cover 13 and the front inner wall of the connecting pipe 12 for installing the primary mixing component 2. An air inlet pipe 14 is fixedly connected to the front side of the cover 13 for allowing the combustion-supporting gas to enter. A feed pipe 16 is fixedly connected to the left side of the connecting pipe 12 for allowing fuel to enter. The primary mixing component 2 includes a connecting shaft 21 for connecting various components. The connecting shaft 21 passes through and is rotatably connected to two mounting brackets 15. A blade 22 is fixedly connected to the rear side of the connecting shaft 21, which can be driven by the flow of air. The blade 22 is disposed inside the cover 13. Multiple mixing blades 23 are fixedly connected to the outer wall of the connecting shaft 21 for mixing operations.

[0032] Furthermore, the swirling assembly 3 includes a mounting plate 31, which is used to connect various components. The mounting plate 31 is fixedly connected to the housing 11. A guide cone 32 is fixedly connected to the rear of the mounting plate 31, which is used to guide gas and fuel to the connection port 311. A swirling cone 33 is fixedly connected to the front of the mounting plate 31, which is used to generate swirling flow. Multiple connection ports 311 are provided in the middle of the mounting plate 31. Multiple spiral blades 331 are fixedly connected to the outside of the swirling cone 33, which are spirally arranged.

[0033] Working principle: During use, gas is sent into the housing 13 through the air inlet pipe 14. At this time, the gas blows the blades 22, causing them to rotate. When the blades 22 rotate, the connecting shaft 21 connected to the blades 22 will rotate accordingly, driving the mixing blades 23 to rotate. At the same time, fuel is delivered into the connecting pipe 12 through the feed pipe 16. As the gas passes through, it will initially mix with the fuel. After the initial mixing, the gas and fuel will enter the housing 11 through the connecting pipe 12 and pass through the dispersion plate 4 for dispersion, thereby further homogenizing the gas and fuel. After passing through the dispersion plate 4, the gas and fuel will be transported to the swirl assembly 3. The guide cone 32 at the rear of the swirl assembly 3 will guide the gas and fuel to the connection port 311 on the mounting plate 31. The gas and fuel will pass through multiple connection ports 311 through the mounting plate 31, thereby flowing to the swirl cone 33 and passing between multiple spiral blades 331, thus forming a swirl. The gas and fuel mixture after forming the swirl will be sent out through the nozzle 51 of the outer plate 5, thereby cooperating with the combustion operation of the burner.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage swirl-type ultra-low oxygen burner, comprising a shell (1), characterized in that: The rear part of the outer shell (1) is provided with a primary mixing component (2), the middle part of the outer shell (1) is provided with a swirl component (3), the rear part of the swirl component (3) is provided with a dispersing plate (4), and the front part of the swirl component (3) is provided with an outer plate (5). The outer shell (1) includes a shell (11), the dispersion plate (4) and the outer plate (5) are fixedly connected to the shell (11), a connecting pipe (12) is fixedly connected to the rear side of the shell (11), a cover (13) is fixedly connected to the rear side of the connecting pipe (12), and a mounting bracket (15) is fixedly connected to the rear part of the inner wall of the cover (13) and the front part of the inner wall of the connecting pipe (12). The initial mixing component (2) includes a connecting shaft (21), which is rotatably connected to two mounting brackets (15). A blade (22) is fixedly connected to the rear of the connecting shaft (21), and the blade (22) is disposed inside the cover (13). A mixing plate (23) is fixedly connected to the outer wall of the connecting shaft (21), and there are multiple such plates.

2. The multi-stage swirl-type ultra-low oxygen burner according to claim 1, characterized in that: The swirl assembly (3) includes a mounting plate (31) which is fixedly connected to the housing (11), and a guide cone (32) is fixedly connected to the rear of the mounting plate (31).

3. A multi-stage swirl-type ultra-low oxygen burner according to claim 2, characterized in that: A vortex cone (33) is fixedly connected to the front side of the mounting plate (31).

4. A multi-stage swirl-type ultra-low oxygen burner according to claim 3, characterized in that: The mounting plate (31) has multiple connection ports (311) in the middle.

5. A multi-stage swirl-type ultra-low oxygen burner according to claim 3, characterized in that: The swirling cone (33) is externally fixedly connected with multiple spiral blades (331).

6. A multi-stage swirl-type ultra-low oxygen burner according to claim 1, characterized in that: An air inlet pipe (14) is fixedly connected to the front side of the cover (13).

7. A multi-stage swirl-type ultra-low oxygen burner according to claim 1, characterized in that: The feed pipe (16) is fixedly connected to the left side of the connecting pipe (12).

8. A multi-stage swirl-type ultra-low oxygen burner according to claim 1, characterized in that: The outer panel (5) has a spray nozzle (51) in the middle.

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