Dual-purpose kerosene burner

Abstract

The utility model discloses a kerosene dual-purpose combustor which comprises a combustion chamber, a heat insulation sleeve is arranged on the outer side of the combustion chamber, a protective outer shell is arranged on the outer side of the heat insulation sleeve, the feeding end of the combustion chamber is rotationally connected with a premixing chamber through a bearing, a spoiler is arranged on the inner wall of the premixing chamber, and an igniter facing the combustion chamber is arranged in the premixing chamber. The outer side of the front end of the igniter is covered with a flow assisting cover, a plurality of pressurizing holes are evenly formed in the front end of the flow assisting cover, the tail of the igniter is sleeved with a vortex disc through a bearing structure, a plurality of guide vanes are evenly arranged on the vortex disc, a mounting sleeve is connected to the rear portion of the premixing chamber, and an oil supply pipe is arranged in the middle of the mounting sleeve. A coal supply pipe is arranged below the oil supply pipe, and a combustion-supporting gas pipe is arranged above the oil supply pipe; the combustor further comprises a driving assembly, the driving assembly is used for driving the combustion chamber to rotate relative to the premixing chamber, the fuel mixing effect is good, the combustion sufficiency is good, and the combustion efficiency of the fuel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, and more specifically, to a kerosene dual-purpose burner. Background Art

[0002] A burner is a general term for a device that sprays fuel and air in a certain way for mixed combustion.

[0003] When conveying coal powder and oil liquid, most existing kerosene dual-purpose burners are equipped with a premixing chamber for premixing. However, when premixing the fuel, the premixing chamber of the existing combustion chamber mainly relies on the impact of the fuel itself to achieve premixing between different fuels, resulting in poor premixing effect of different fuels such as coal powder and oil liquid during use, affecting the subsequent combustion sufficiency of the fuel.

[0004] In addition, during the combustion process, pulverized coal and other fuels are prone to fall and accumulate in the combustion chamber of the burner due to their own gravity, which will also affect the combustion effect of pulverized coal and other fuels and reduce the combustion completeness of the fuel;

[0005] In addition, when the existing kerosene dual-purpose burner transports fuel through the premixing box to the combustion chamber, the airflow delivery force will become smaller, and there is a lack of structure to adjust the delivery air pressure, which affects the performance of the kerosene dual-purpose burner when transporting fuel and affects the combustion completeness of the fuel. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the problems existing in the prior art, the utility model provides a kerosene dual-purpose burner to solve the technical problems mentioned in the background technology that the kerosene dual-purpose burner in the prior art has poor premixing effect, the fuel is easily deposited, and the fuel delivery pressure in the combustion chamber is difficult to adjust, which affects the combustion completeness of the fuel.

[0008] (II) Technical solution

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A kerosene dual-purpose burner, comprising a combustion chamber, an insulation sleeve is arranged on the outside of the combustion chamber, a protective shell is arranged on the outside of the insulation sleeve, a feed end of the combustion chamber is rotatably connected to a premixing chamber through a bearing, a spoiler is arranged on the inner wall of the premixing chamber, an igniter facing the combustion chamber is arranged inside the premixing chamber, a flow-aiding cover is arranged on the outer cover of the front end of the igniter, a plurality of pressurizing holes are evenly opened at the front end of the flow-aiding cover, a vortex disk is arranged on the tail of the igniter through a bearing structure sleeve, a plurality of guide vanes are evenly arranged on the vortex disk, a mounting sleeve is connected to the rear of the premixing chamber, an oil supply pipe is arranged in the middle of the mounting sleeve, a coal supply pipe is arranged below the oil supply pipe, and a combustion-supporting gas pipe is arranged above the oil supply pipe;

[0011] Also included is a driving assembly for driving the combustion chamber to rotate relative to the premixing chamber.

[0012] The utility model is further configured such that the driving assembly includes a motor, a toothed belt is provided on the outer circumference of the protective shell, a gear is provided on the output end of the motor, the gear and the toothed belt are meshed with each other, and the rotational drive of the combustion chamber can be achieved through the cooperation of the motor, the gear and the toothed belt.

[0013] The utility model is further configured that the oil supply pipe includes an oil delivery pipe, the oil delivery pipe is connected to external oil, and an oil mist nozzle is arranged at one end of the oil delivery pipe close to the vortex disk to enhance the spraying effect of the oil.

[0014] The utility model is further configured that one end of the coal supply pipe close to the vortex disk is inclined toward the oil mist nozzle and is provided with a coal outlet to enhance the spraying effect of the coal powder.

[0015] The utility model is further configured that an outlet pipe is arranged at one end of the combustion-supporting gas pipe close to the vortex disk and inclined toward the oil mist nozzle to enhance the spraying effect of the combustion-supporting gas.

[0016] The utility model is further configured such that a partition plate is provided inside the installation sleeve, and the oil mist nozzle, coal outlet and air outlet pipe are all located on a side of the partition plate close to the vortex disk, thereby realizing the separation between the premixing chamber and the installation sleeve.

[0017] The utility model is further configured that a flow guide head is obliquely arranged at the front end of the flow-aiding cover, and the pressurizing holes are evenly arranged on the flow guide head to enhance the effect of ejecting the pressurized airflow.

[0018] The utility model is further configured that a protective cover is arranged on one side of the igniter close to the eddy current disk, and the eddy current disk is arranged on the outer side of the protective cover through a bearing sleeve to enhance the protection of the igniter.

[0019] The utility model is further configured that the flow-aiding hood extends outward to the outside of the premixing chamber and is provided with a high-pressure gas input pipe to realize the input of the pressure-regulated airflow inside the flow-aiding hood.

[0020] The utility model is further configured such that a plurality of baffles are evenly arranged on the inner wall of the combustion chamber to improve the turning effect of the fuel inside the combustion chamber.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model provides a kerosene dual-purpose burner, which has the following beneficial effects:

[0023] 1. The utility model installs the combustion chamber rotatably on the outside of the premixing chamber, so that when the coal powder or oil liquid settles during the combustion process in the combustion chamber, the coal powder or the like can be turned over, thereby improving the combustion completeness of the coal powder or the oil liquid.

[0024] 2. The utility model installs an igniter in a premixing chamber, and rotatably installs a vortex disk and guide vanes that cooperate with each other on the igniter through a bearing. In this way, during the oil and gas or coal powder transportation process, the vortex disk can be automatically driven to carry the guide vanes to rotate to achieve kerosene mixing, or when used alone, the coal powder or oil can be evenly distributed in the premixing box, thereby improving the uniformity when it enters the combustion chamber later and improving the completeness of combustion.

[0025] 3. The utility model is provided with a flow-assisting cover on the outer cover of the front end of the igniter, and a plurality of pressurizing holes are evenly opened at the front end of the flow-assisting cover, so that the external flow-assisting gas is transported to the inside of the flow-assisting cover at high pressure and evenly discharged outward through the pressurizing holes, which can assist the flow of oil or coal powder in the premixing chamber and the combustion chamber, and improve the sufficiency of oil and coal powder during combustion;

[0026] At the same time, pressurized gas can increase the ignition range of the igniter and ensure the smoothness of the fuel during combustion.

[0027] 4. In addition, a spoiler is provided on the inner wall of the premixing chamber of the utility model. The spoiler can further enhance the change of the flow direction of the fuel gas flow in the premixing chamber, thereby enhancing the mixing effect of the fuel in the premixing chamber and improving the distribution uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The overall structure of a kerosene dual-purpose burner in the utility model is shown in FIG. Figure 1 ;

[0029] Figure 2 The overall structure of a kerosene dual-purpose burner in the utility model is shown in FIG. Figure 2 ;

[0030] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model;

[0031] Figure 4 It is a schematic diagram of the exploded structure of the connection between the igniter, the protective cover, the flow-assisting cover, the swirl disk and the guide vane in the utility model;

[0032] Figure 5 It is a cross-sectional schematic diagram of the connection structure between the igniter, the flow-aiding cover and the pressurizing hole in the utility model.

[0033] In the figure: 1. combustion chamber; 2. insulation sleeve; 3. protective shell; 4. premixing chamber; 5. spoiler; 6. igniter; 7. flow-aiding cover; 8. pressurizing hole; 9. vortex disk; 10. guide vane; 11. mounting sleeve; 12. oil supply pipe; 13. coal supply pipe; 14. combustion-supporting gas pipe; 15. motor; 16. toothed belt; 17. gear; 18. oil pipeline; 19. oil mist nozzle; 20. coal outlet; 21. gas outlet pipe; 22. partition plate; 23. guide head; 24. protective cover; 25. high-pressure gas input pipe; 26. baffle. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0036] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0037] See also Figure 1-5A kerosene dual-purpose burner comprises a combustion chamber 1, a heat insulation sleeve 2 is arranged on the outside of the combustion chamber 1, a protective shell 3 is arranged on the outside of the heat insulation sleeve 2, a feed end of the combustion chamber 1 is rotatably connected with a premixing chamber 4 through a bearing, a spoiler 5 is arranged on the inner wall of the premixing chamber 4, an igniter 6 facing the combustion chamber 1 is arranged inside the premixing chamber 4, wherein the igniter 6 is installed inside the premixing chamber 4 through a bracket structure, a flow-aiding cover 7 is arranged on the outer cover of the front end of the igniter 6, a plurality of pressurizing holes 8 are evenly opened at the front end of the flow-aiding cover 7, a vortex disk 9 is evenly arranged on the vortex disk 9 through a bearing structure sleeve at the tail of the igniter 6, a plurality of guide vanes 10 are evenly arranged on the vortex disk 9, a mounting sleeve 11 is connected to the rear of the premixing chamber 4, an oil supply pipe 12 is arranged in the middle of the mounting sleeve 11, a coal supply pipe 13 is arranged below the oil supply pipe 12, and a combustion-supporting gas pipe 14 is arranged above;

[0038] It also includes a driving assembly, which is used to drive the combustion chamber 1 to rotate relative to the premixing chamber 4.

[0039] In this embodiment, the utility model rotatably mounts the combustion chamber 1 on the outside of the premixing chamber 4, so that when the coal powder or oil liquid settles during the combustion process in the combustion chamber 1, the coal powder or the like can be turned over, thereby improving the combustion completeness of the coal powder or the oil liquid.

[0040] More specifically, the utility model installs the igniter 6 in the premixing chamber 4, and rotatably installs a vortex disk 9 and a guide vane 10 that cooperate with each other on the igniter 6 through a bearing. In this way, during the oil and gas or coal powder transportation process, the vortex disk 9 can be automatically driven to carry the guide vane 10 to rotate to achieve kerosene mixing, or when used alone, the coal powder or oil can be evenly distributed in the premixing box, thereby improving the uniformity when entering the combustion chamber 1 later and improving the completeness of combustion.

[0041] Furthermore, the utility model is provided with a flow-aiding cover 7 on the outer side cover of the front end of the igniter 6, and a plurality of pressurizing holes 8 are evenly opened at the front end of the flow-aiding cover 7, so that the external flow-aiding gas is transported to the inside of the flow-aiding cover 7 at high pressure and discharged outwardly evenly through the pressurizing holes 8, which can assist the flow of oil or coal powder in the premixing chamber 4 and the combustion chamber 1, and improve the sufficiency of the oil and coal powder during combustion.

[0042] See also Figure 1 and Figure 2 As an implementation of the driving assembly: the driving assembly includes a motor 15, a toothed belt 16 is arranged on the outer circumference of the protective housing 3, a gear 17 is arranged at the output end of the motor 15, and the gear 17 and the toothed belt 16 are meshed with each other.

[0043] Specifically, the motor 15 is started, and the gear 17 is controlled to rotate by the motor 15. The rotation of the protective housing 3 can be controlled by the meshing of the gear 17 and the toothed belt 16, thereby realizing the rotation of the combustion chamber 1 relative to the premixing chamber 4, thereby improving the combustion effect of the fuel.

[0044] See also Figure 3 As an implementation method of the oil supply pipe 12 , the oil supply pipe 12 includes an oil delivery pipe 18 , the oil delivery pipe 18 is connected to external oil, and an oil mist nozzle 19 is provided at one end of the oil delivery pipe 18 close to the vortex disk 9 .

[0045] Specifically, the oil delivery pipe 18 is connected to the external high-pressure oil supply pipe 12 and transported to the oil mist nozzle 19 so that the oil can be atomized and sprayed outward.

[0046] See also Figure 3 As an implementation of the coal supply pipe 13 , a coal outlet 20 is provided at one end of the coal supply pipe 13 close to the vortex disk 9 and inclined toward the oil mist nozzle 19 .

[0047] Specifically, the inclined coal outlet 20 can achieve mutual impact between the sprayed coal powder and the oil when the oil and coal are mixed, thereby improving the oil-coal mixing effect. When used alone, it can enhance the rotation effect of the vortex disk 9 carrying the guide blades 10, thereby improving the uniformity of the distribution of the coal powder in the premixing chamber 4.

[0048] See also Figure 3 As an implementation of the combustion-supporting gas pipe 14 , an outlet pipe 21 is provided at one end of the combustion-supporting gas pipe 14 close to the vortex disk 9 and inclined toward the oil mist nozzle 19 .

[0049] Specifically, the setting of the gas outlet pipe 21 can make the combustion-supporting gas impact the sprayed coal powder or oil liquid, strengthen the mixing effect between the combustion-supporting gas and the coal powder or oil liquid, thereby improving the combustion completeness of the coal powder and oil liquid in the subsequent combustion process.

[0050] See also Figure 3 As an implementation method of the installation sleeve 11: a partition plate 22 is arranged inside the installation sleeve 11, and the oil mist nozzle 19, the coal outlet 20 and the air outlet pipe 21 are all located on the side of the partition plate 22 close to the vortex disk 9.

[0051] Specifically, the partition plate 22 is used to separate the premixing chamber 4 from the inner cavity of the installation sleeve 11 , so as to prevent the ejected oil, coal powder, combustion-supporting gas, etc. from flowing back into the inner cavity of the installation sleeve 11 .

[0052] See also Figure 4 and Figure 5As an implementation of the flow-aiding cover 7 , a flow-guiding head 23 is obliquely provided at the front end of the flow-aiding cover 7 , and the pressure holes 8 are evenly opened on the flow-guiding head 23 .

[0053] Specifically, the guide head 23 can be arranged to allow the pressure-assisted airflow to be sprayed obliquely toward the conveying coal powder, oil liquid or kerosene mixed airflow, thereby enhancing the uniform mixing and assisting the coal powder, oil liquid or kerosene mixed airflow to move forward, thereby improving the completeness of combustion.

[0054] See also Figure 4 As an implementation of the igniter 6: a protective cover 24 is provided on one side of the igniter 6 close to the vortex disk 9, and the vortex disk 9 is provided on the outer side of the protective cover 24 through a bearing sleeve.

[0055] Specifically, the protective cover 24 enhances the protection of the igniter 6 .

[0056] See also Figure 2 and Figure 3 As an implementation of the flow-aiding hood 7 , the flow-aiding hood 7 extends outward to the outside of the premixing chamber 4 and is provided with a high-pressure gas input pipe 25 .

[0057] Specifically, the high-pressure gas input pipe 25 is used to connect with the external high-pressure airflow to realize the air intake inside the flow-aiding cover 7, wherein the flow-aiding gas here is preferably clean air.

[0058] See also Figure 1 and Figure 3 As an implementation of the combustion chamber 1 : a plurality of baffles 26 are evenly arranged on the inner wall of the combustion chamber 1 .

[0059] Specifically, the baffle 26 can be provided to further improve the turning effect of the pulverized coal and the like when rotating with the combustion chamber 1, so that the pulverized coal and the like can be fully burned.

[0060] In summary, when the overall equipment is in use:

[0061] When coal powder or oil is used alone:

[0062] The pulverized coal is transported through the coal supply pipe 13 and discharged to the inside of the premixing chamber 4 through the coal outlet 20;

[0063] The oil is transported through the oil delivery pipe 18 and sprayed out through the atomizing nozzle;

[0064] After the oil or coal powder is sprayed into the premixing chamber 4, the airflow drives the vortex disk 9 to drive the guide vane 10 to rotate, so that the distribution of coal powder and oil in the premixing box is more uniform, so that the fuel enters the combustion chamber 1 more evenly.

[0065] When coal powder or oil is used alone:

[0066] The oil and coal powder are sprayed out synchronously and enter the premixing box. Since the coal outlet 20 is arranged obliquely, the oil and coal powder can impact each other while being sprayed out, thereby achieving premixing of the oil and coal powder. Afterwards, the guide vanes 10 are driven to rotate during the flow in the premixing box, thereby further improving the mixing effect between the coal powder and the oil.

[0067] In the above process, the combustion-supporting gas can be sprayed outward through the gas outlet via the combustion-supporting gas pipe 14. When the combustion-supporting gas is sprayed out, it will impact with the oil or coal powder, so that the combustion-supporting gas can be premixed with the oil, coal powder or kerosene mixture.

[0068] Afterwards, the mixed airflow fully mixed by the swirl disk 9 and the guide vane 10 will flow through the igniter 6 and enter the combustion chamber 1. During this process, the igniter 6 is used to ignite the fuel, thereby achieving combustion of the fuel in the combustion chamber 1.

[0069] When the fuel enters the combustion chamber 1, the external high-pressure airflow can be delivered to the inside of the flow-aiding cover 7 through the high-pressure gas inlet pipe 25, and ejected outward through the pressurized hole 8 on the flow guide head 23 at the front end of the flow-aiding cover 7 to mix with the mixed fuel airflow, and at the same time assist the fuel airflow to move forward, thereby improving the combustion completeness of the fuel.

[0070] When the fuel is burning inside the combustion chamber 1, the motor 15 is started, and the gear 17 is controlled to rotate by the motor 15. The rotation of the combustion chamber 1 is controlled by the engagement between the gear 17 and the toothed belt 16, thereby avoiding the accumulation of fuel inside the combustion chamber 1 and improving the combustion completeness of the fuel.

[0071] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A kerosene dual-purpose burner, comprising a combustion chamber (1), characterized in that: The combustion chamber (1) is provided with a heat insulating sleeve (2) on the outside, and a protective shell (3) is provided on the outside of the heat insulating sleeve (2). The feed end of the combustion chamber (1) is rotatably connected to a premixing chamber (4) via a bearing, and a spoiler (5) is provided on the inner wall of the premixing chamber (4). An igniter (6) facing the combustion chamber (1) is provided inside the premixing chamber (4), and a flow-assisting cover (7) is provided on the outer side of the front end of the igniter (6). The flow-assisting cover (7) A plurality of pressurizing holes (8) are evenly arranged at the front end of the igniter (6); a vortex disk (9) is sleeved with a bearing structure at the rear end of the igniter (6); a plurality of guide vanes (10) are evenly arranged on the vortex disk (9); a mounting sleeve (11) is connected to the rear of the premixing chamber (4); an oil supply pipe (12) is arranged in the middle of the mounting sleeve (11); a coal supply pipe (13) is arranged below the oil supply pipe (12), and a combustion-supporting gas pipe (14) is arranged above the oil supply pipe (12); It also comprises a driving assembly, which is used to drive the combustion chamber (1) to rotate relative to the premixing chamber (4).

2. A kerosene dual-purpose burner according to claim 1, characterized in that: The driving assembly comprises a motor (15), a toothed belt (16) is arranged on the outer circumference of the protective housing (3), a gear (17) is arranged at the output end of the motor (15), and the gear (17) and the toothed belt (16) are meshed with each other.

3. A kerosene dual-purpose burner according to claim 1, characterized in that: The oil supply pipe (12) comprises an oil delivery pipe (18), the oil delivery pipe (18) is connected to external oil, and an oil mist nozzle (19) is arranged at one end of the oil delivery pipe (18) close to the vortex disk (9).

4. A kerosene dual-purpose burner according to claim 3, characterized in that: The coal supply pipe (13) is provided with a coal outlet (20) at one end close to the vortex disk (9) and inclined toward the oil mist nozzle (19).

5. A kerosene dual-purpose burner according to claim 4, characterized in that: An outlet pipe (21) is provided at one end of the combustion-supporting gas pipe (14) close to the vortex disk (9) and inclined toward the oil mist nozzle (19).

6. A kerosene dual-purpose burner according to claim 5, characterized in that: A partition plate (22) is arranged inside the installation sleeve (11), and the oil mist nozzle (19), the coal outlet (20) and the air outlet pipe (21) are all located on a side of the partition plate (22) close to the vortex disk (9).

7. A kerosene dual-purpose burner according to any one of claims 1 to 6, characterized in that: A flow guide head (23) is obliquely arranged at the front end of the flow-assisting cover (7), and the pressure holes (8) are evenly arranged on the flow guide head (23).

8. A kerosene dual-purpose burner according to claim 1, characterized in that: A protective cover (24) is provided on one side of the igniter (6) close to the vortex disk (9), and the vortex disk (9) is arranged on the outside of the protective cover (24) via a bearing sleeve.

9. A kerosene dual-purpose burner according to claim 8, characterized in that: The flow-aiding cover (7) extends outward to the outside of the premixing chamber (4) and is provided with a high-pressure gas input pipe (25).

10. A kerosene dual-purpose burner according to claim 1, characterized in that: A plurality of baffles (26) are evenly arranged on the inner wall of the combustion chamber (1).

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