Boiler fuel oil burner

Abstract

The utility model relates to the technical field of combustors, and discloses a boiler fuel oil combustor which comprises a combustor body and an oil tank fixedly installed on one side of the combustor body, a combustion diffusion opening is formed in one side of the combustor body, an equipment cavity is formed in the top of the combustor body, a pressurizing box is detachably and fixedly installed in the equipment cavity, and a pressure sensor is arranged in the pressurizing box. A circular groove is formed in the side, close to the combustion diffusion opening, of the pressurizing box. According to the utility model, the plurality of oil nozzles are circumferentially, uniformly and fixedly arranged on the surface of the turntable, so that fuel oil sprayed by the plurality of oil nozzles collides with one another through the rotation of the turntable in the running process of the equipment, and the fuel oil enters the oil nozzles to be subjected to primary refined shunting by combining with curved grooves in the oil nozzles, and then is split into atomization after collision; and the atomized fuel oil is distributed more uniformly and combusted more sufficiently.

Description

Technical Field

[0001] This utility model relates to the field of burner technology, and in particular to a boiler fuel oil burner. Background Technology

[0002] The burner industry market is showing a positive trend. As a device that sprays fuel and air in a certain way for combustion, the performance and quality of burners are crucial to the operation of industries such as power, steel, and chemicals. With the continuous development of the industrial sector, the demand for burners is also growing, providing enterprises with broad development space.

[0003] Although a multi-nozzle fuel burner (publication number: CN220229137U) in the prior art is designed to spray fuel not only through the ignition nozzle but also through multiple secondary and tertiary ignition nozzles, and to use it in conjunction with a flame stabilizer to make the fuel and combustion air mix quickly and improve combustion efficiency, the fuel nozzles are all fixed, which causes the injected fuel to be divided into multiple streams, making its overall distribution uneven and reducing the utilization rate of fuel. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a boiler fuel oil burner.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A boiler oil burner includes a burner body and an oil tank fixedly installed on one side of the burner body. A combustion diffuser is provided on one side of the burner body, and an equipment cavity is opened on the top of the burner body. A pressure box is detachably and fixedly installed in the equipment cavity. A circular groove is opened on the side of the pressure box near the combustion diffuser. An oil outlet is opened in the circular groove and communicates with the inside of the pressure box. A turntable is rotatably installed in the oil outlet. Multiple oil nozzles are fixedly installed circumferentially on the surface of the turntable. A diverter pipe is fixedly installed on the side of each oil nozzle near the center of the turntable. The other end of each diverter pipe passes through the turntable and communicates with the inside of the pressure box.

[0007] As a further embodiment of this utility model, the booster box has an L-shaped structure, and each of the fuel injectors has multiple curved grooves with a curved structure. The curved grooves are used to separate the fuel. An igniter is provided in the middle of the multiple fuel injectors. The igniter has a built-in battery and is fixedly installed with the turntable. A fuel pump is provided on the surface of the fuel tank. The fuel pump inlet is connected to the inside of the fuel tank through a fuel pipe. The fuel pump outlet is fixedly installed with a fuel inlet pipe. The other end of the fuel inlet pipe is fixedly installed to the top of the booster box and communicates with its interior.

[0008] As a further embodiment of this utility model, the booster box is divided into two oil chambers and an oil collection chamber, which are separated vertically. A filter plate is fixedly installed between the two oil chambers. The filter plate has filter holes distributed in a fan shape on its surface. A scraper is rotatably installed inside the booster box. The scraper contacts the top of the filter plate and is used to scrape the residue accumulated on the surface of the filter plate. An inspection port is provided on the top of the booster box, and an inspection cover is sealed inside the inspection port.

[0009] As a further embodiment of this utility model, an oil leakage hole is provided between the oil collecting chamber and the circular groove where the turntable is located. An oil return pipe is fixedly installed on the side of the booster box away from the combustion diffuser. A fuel recovery box is fixedly installed on one side of the burner body surface. The other end of the oil return pipe is connected to the inside of the fuel recovery box. Electromagnetic one-way valves are provided inside the oil return pipe, the oil inlet pipe and the multiple diversion pipes.

[0010] As a further embodiment of this utility model, a bracket with a U-shaped structure is fixedly installed on the side of the booster box away from the combustion diffuser. A servo motor is fixedly installed inside the bracket, and a first bevel gear is rotatably installed inside the bracket. A transmission shaft is fixedly installed at the top center of the first bevel gear, and a second bevel gear is fixedly sleeved on the surface of the transmission shaft. The top end of the transmission shaft passes through the booster box and is fixedly installed at the rotation center of the bottom of the scraper.

[0011] As a further embodiment of this utility model, a drive gear and a driven gear are rotatably mounted on the side of the booster box away from the combustion diffuser. The drive gear meshes with the driven gear. One side of the drive gear is fixedly mounted to the rotation center of one side of the turntable via a connecting shaft. The rotation center of the other side of the drive gear is fixedly mounted to the output end of the servo motor. An intermittent bevel gear is fixedly mounted on one side of the driven gear. The intermittent bevel gear alternately meshes with the first bevel gear and the second bevel gear during rotation.

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

[0013] By setting multiple fuel injectors to be evenly fixed on the surface of the turntable in a circular pattern, during the operation of the equipment, the rotation of the turntable causes the fuel sprayed from the multiple fuel injectors to collide with each other. Combined with the curved grooves in the fuel injectors, the fuel enters the fuel injectors and undergoes a fine stream splitting. After the collision, it is split into atomized and distributed more evenly, thus improving the utilization rate of the fuel combustion process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a boiler fuel oil burner proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of a boiler fuel oil burner proposed in this utility model;

[0016] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle;

[0017] Figure 4 for Figure 2 A magnified structural diagram of part B in the middle section;

[0018] Figure 5 This is a schematic diagram of the nozzle distribution structure of a boiler fuel oil burner proposed in this utility model.

[0019] In the diagram: 1. Burner body; 2. Pressure chamber; 3. Inspection cover; 4. Oil tank; 5. Oil inlet pipe; 6. Equipment cavity; 7. Oil return pipe; 8. Filter plate; 9. Scraper; 10. Oil collection chamber; 11. Injector; 12. Curved groove; 13. Diverter pipe; 14. Turntable; 15. Support; 16. Servo motor; 17. Drive gear; 18. Driven gear; 19. Intermittent bevel gear; 20. First bevel gear; 21. Second bevel gear; 22. Drive shaft; 23. Ignition device. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figures 1-5A boiler fuel oil burner includes a burner body 1 and an oil tank 4 fixedly installed on one side of the burner body 1. A combustion diffuser is provided on one side of the burner body 1. An equipment cavity 6 is formed on the top of the burner body 1. A pressure box 2 is detachably and fixedly installed inside the equipment cavity 6. A circular groove is formed on the side of the pressure box 2 near the combustion diffuser. An oil outlet is formed in the circular groove and communicates with the inside of the pressure box 2. A turntable 14 is rotatably installed inside the oil outlet. Multiple oil nozzles 11 are uniformly fixedly installed on the circumference of the surface of the turntable 14. Each oil nozzle 11 is fixedly installed on the side near the center of the turntable 14. The system is equipped with a splitter pipe 13, with the other end of each splitter pipe 13 passing through the turntable 14 and communicating with the inside of the booster box 2. The booster box 2 has an L-shaped structure. Each fuel injector 11 has multiple curved grooves 12 with a curved structure. The curved grooves 12 are used to split the fuel. An igniter 23 is provided in the middle of the multiple fuel injectors 11. The igniter 23 has a built-in battery and is fixedly installed with the turntable 14. A fuel pump is provided on the surface of the fuel tank 4. The fuel pump inlet end is connected to the inside of the fuel tank 4 through a fuel pipe. The fuel pump outlet end is fixedly installed with a fuel inlet pipe 5. The other end of the fuel inlet pipe 5 is fixedly installed with the top of the booster box 2 and communicates with its interior.

[0024] In use, multiple fuel injectors 11 are uniformly fixed on the surface of the turntable 14. During the operation of the equipment, the rotation of the turntable 14 causes the fuel injected by the multiple fuel injectors 11 to collide with each other. Combined with the curved grooves 12 in the fuel injectors 11, the fuel enters the fuel injectors 11 and undergoes a fine diversion. After the collision, it is split into atomized and distributed more evenly, which improves the utilization rate of the fuel combustion process.

[0025] In this embodiment, the booster box 2 is divided into two oil chambers and an oil collection chamber 10. A filter plate 8 is fixedly installed between the two oil chambers. The surface of the filter plate 8 has filter holes distributed in a fan shape. A scraper 9 is rotatably installed inside the booster box 2. The scraper 9 contacts the top of the filter plate 8 and is used to scrape the residue accumulated on the surface of the filter plate 8. An inspection port is opened at the top of the booster box 2. An inspection cover plate 3 is sealed inside the inspection port. An oil leakage hole is opened between the oil collection chamber 10 and the circular groove where the turntable 14 is located. A return oil pipe 7 is fixedly installed on the side of the booster box 2 away from the combustion diffuser. A fuel recovery tank is fixedly installed on one side of the burner body 1. The other end of the return oil pipe 7 is connected to the fuel recovery tank. Electromagnetic one-way valves are installed inside the return oil pipe 7, the inlet oil pipe 5, and the multiple diversion pipes 13.

[0026] In use, by installing a filter plate 8 and a scraper 9 inside the booster box 2, the filter plate 8 can filter the fuel pumped into the booster box 2 once. Then the fuel enters the injector 11 through the splitter pipe 13. The scraper 9 swings back and forth on the top of the filter plate 8, pushing the impurities trapped on the surface of the filter plate 8 to both sides to prevent the filter plate 8 from becoming blocked. Therefore, the filter holes of the filter plate 8 are fan-shaped to match the sweeping trajectory of the scraper 9. During maintenance, the impurities in the burner body 1 can be removed by opening the inspection cover 3, which improves the practicality of the equipment.

[0027] The oil collection chamber 10 is set up so that when there is unburned fuel injected by the fuel injector 11, the fuel enters the oil collection chamber 10 through the oil leakage hole. After the equipment finishes running, the one-way solenoid valve in the oil return pipe 7 is opened so that the collected fuel can enter the fuel recovery tank for recycling, which improves the full utilization of fuel by the equipment and saves fuel resources.

[0028] In this embodiment, a U-shaped bracket 15 is fixedly installed on the side of the pressurization box 2 away from the combustion diffuser. A servo motor 16 is fixedly installed inside the bracket 15, and a first bevel gear 20 is rotatably installed inside the bracket 15. A transmission shaft 22 is fixedly installed at the top center of the first bevel gear 20, and a second bevel gear 21 is fixedly sleeved on the surface of the transmission shaft 22. The top end of the transmission shaft 22 passes through the pressurization box 2 and is fixedly installed at the bottom rotation center of the scraper 9. A drive gear 17 and a driven gear 18 are also rotatably installed on the side of the pressurization box 2 away from the combustion diffuser. The drive gear 17 meshes with the driven gear 18. One side of the drive gear 17 is fixedly installed at the rotation center of one side of the turntable 14 through a connecting shaft, and the other side of the drive gear 17 is fixedly installed at the rotation center of the servo motor 16. An intermittent bevel gear 19 is fixedly installed on one side of the driven gear 18. The intermittent bevel gear 19 alternately meshes with the first bevel gear 20 and the second bevel gear 21 during rotation.

[0029] In use, the servo motor 16 starts and drives the drive gear 17 to rotate. The drive gear 17 drives the turntable 14 to rotate and at the same time drives the driven gear 18 to rotate. The driven gear 18 drives the intermittent bevel gear 19 to rotate at the same time. The intermittent bevel gear 19 alternately meshes with the first bevel gear 20 and the second bevel gear 21. As a result, the transmission shaft 22 alternately rotates forward and reverse under the alternating drive of the first bevel gear 20 and the second bevel gear 21. This causes the scraper 9 to swing back and forth on the top of the filter plate 8 to clean the residue, thus improving the linkage consistency and practicality of the equipment.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A boiler fuel oil burner, comprising a burner body (1) and an oil tank (4) fixedly installed on one side of the burner body (1), characterized in that, The burner body (1) has a combustion diffusion port on one side and an equipment cavity (6) on the top of the burner body (1). A booster box (2) is detachably and fixedly installed in the equipment cavity (6). A circular groove is provided on the side of the booster box (2) near the combustion diffusion port. An oil outlet is provided in the circular groove and communicates with the booster box (2). A turntable (14) is rotatably installed in the oil outlet. Multiple oil nozzles (11) are uniformly fixedly installed on the surface of the turntable (14). A diverter pipe (13) is fixedly installed on the side of each oil nozzle (11) near the center of the turntable (14). The other end of each diverter pipe (13) passes through the turntable (14) and communicates with the booster box (2).

2. A boiler fuel oil burner according to claim 1, characterized in that, The booster box (2) has an L-shaped structure. Each of the fuel injectors (11) has multiple curved grooves (12) with a curved structure. The curved grooves (12) are used to separate the fuel. An igniter (23) is provided in the middle of the multiple fuel injectors (11). The igniter (23) has a built-in battery and is fixedly installed with the turntable (14). The surface of the fuel tank (4) is provided with a fuel pump. The fuel pump inlet end is connected to the fuel tank (4) through a fuel pipe. The fuel pump outlet end is fixedly installed with a fuel inlet pipe (5). The other end of the fuel inlet pipe (5) is fixedly installed with the top of the booster box (2) and is connected to its interior.

3. A boiler fuel oil burner according to claim 2, characterized in that, The booster box (2) is divided into two oil chambers and an oil collection chamber (10) by vertical separation. A filter plate (8) is fixedly installed between the two oil chambers. The filter plate (8) has filter holes distributed in a fan shape on its surface. A scraper (9) is rotatably installed in the booster box (2). The scraper (9) is in contact with the top of the filter plate (8). The scraper (9) is used to scrape the residue accumulated on the surface of the filter plate (8). An inspection port is opened at the top of the booster box (2). An inspection cover plate (3) is sealed inside the inspection port.

4. A boiler fuel oil burner according to claim 3, characterized in that, An oil leakage hole is provided between the oil collection chamber (10) and the circular groove where the turntable (14) is located. A return oil pipe (7) is fixedly installed on the side of the booster box (2) away from the combustion diffuser. A fuel recovery box is fixedly installed on one side of the surface of the burner body (1). The other end of the return oil pipe (7) is connected to the inside of the fuel recovery box. Electromagnetic one-way valves are provided inside the return oil pipe (7), the inlet pipe (5) and the multiple diversion pipes (13).

5. A boiler fuel oil burner according to claim 4, characterized in that, The booster box (2) is also fixedly installed with a bracket (15) in the shape of a U-shape on the side away from the combustion diffuser. A servo motor (16) is fixedly installed inside the bracket (15). A first bevel gear (20) is rotatably installed inside the bracket (15). A drive shaft (22) is fixedly installed in the middle of the top of the first bevel gear (20). A second bevel gear (21) is fixedly sleeved on the surface of the drive shaft (22). The top of the drive shaft (22) passes through the booster box (2) and is fixedly installed at the bottom rotation center of the scraper (9).

6. A boiler fuel oil burner according to claim 5, characterized in that, The booster box (2) is also rotatably mounted with a drive gear (17) and a driven gear (18) on the side away from the combustion diffuser. The drive gear (17) meshes with the driven gear (18). One side of the drive gear (17) is fixedly mounted to the rotation center of one side of the turntable (14) via a connecting shaft. The rotation center of the other side of the drive gear (17) is fixedly mounted to the output end of the servo motor (16). An intermittent bevel gear (19) is fixedly mounted on one side of the driven gear (18). The intermittent bevel gear (19) alternately meshes with the first bevel gear (20) and the second bevel gear (21) during the rotation process.

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