Natural gas boiler burner

Abstract

The invention relates to the technical field of combustors, and discloses a natural gas boiler combustor which comprises a second shell and a first shell, a gas supply assembly is arranged on the outer side of the second shell, two connecting openings are formed in one side of the second shell, two flow guide shells are movably connected to the inner wall of one side of the second shell, and a plurality of through holes are formed in the flow guide shells; the outer side of one end of the flow guide shell is fixedly connected with a first gear ring, the inner wall of one side of the second shell is movably connected with a connecting shaft, one end of the connecting shaft is in key connection with a first gear, the first gear is meshed with the first gear ring, and the outer wall of one side of the second shell is provided with a power assembly driving the connecting shaft to rotate. Natural gas and oxygen in air can be mixed more sufficiently, the combustion efficiency is improved, the opening degree of the baffle can be controlled through the shielding assembly, the gas flow in the connecting pipe can be adjusted, and combustion of the natural gas can be further promoted through the air blowing assembly.

Description

Technical Field

[0001] This invention relates to the field of burner technology, specifically a natural gas boiler burner. Background Technology

[0002] The burner of a natural gas boiler is the core equipment of a natural gas boiler. It achieves efficient thermal energy conversion by premixing air and fuel, and is mainly used in the energy, chemical and industrial fields.

[0003] Currently, a significant technical problem exists in commonly used burners on the market: natural gas and air are difficult to mix fully and evenly before entering the combustion process. This results in incomplete combustion of natural gas, leading to additional nitrogen oxide emissions, reduced combustion efficiency, and increased energy waste. These problems not only affect the environmental performance of burners but also directly reduce energy utilization and increase users' operating costs. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a natural gas boiler burner, which mainly solves the problem that natural gas and air are difficult to mix fully and evenly before entering the combustion process, resulting in incomplete combustion of natural gas.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A natural gas boiler burner includes a second shell and a first shell. A gas supply assembly is provided on the outer side of the second shell. Two connection ports are opened on one side of the second shell. Two guide shells are movably connected to the inner wall of one side of the second shell, and multiple through holes are opened on the guide shells. A first toothed ring is fixedly connected to the outer side of one end of each guide shell. A connecting shaft is movably connected to the inner wall of one side of the second shell. A first gear is keyed to one end of the connecting shaft, and the first gear meshes with the first toothed ring. A power assembly for driving the connecting shaft to rotate is provided on the outer wall of one side of the second shell. Multiple stirring plates are fixedly connected to one end of the connecting shaft. A connecting pipe is fixedly connected to one end of the first shell, and the second shell is fixedly connected to the connecting pipe. A shielding assembly is provided on the connecting pipe. A rotating pipe is movably connected to the other end of the first shell, and a fixed pipe is movably connected to one end of the rotating pipe. An igniter is fixedly connected to the first shell, and the ignition port of the igniter is located inside the first shell. A blower assembly is provided inside the rotating pipe.

[0009] Furthermore, the air supply assembly includes a support plate, which is fixed to the outer wall of one side of the second housing by bolts. An air pump is fixedly connected to the upper surface of the support plate, and one end of the air pump's outlet is connected and fixed to its adjacent connection port.

[0010] Based on the aforementioned scheme, the power assembly includes a mounting frame, which is fixed to the outer wall of one side of the second housing by bolts. A first motor is fixedly connected to one side of the mounting frame, and one end of the output shaft of the first motor passes through the second housing and is fixed to the connecting shaft.

[0011] As a further embodiment of the present invention, the shielding assembly includes a cylinder, which is fixed to the top outer wall of the connecting pipe by bolts. A slip ring is movably connected to the outside of the connecting pipe, and one end of the cylinder piston rod is fixed to the slip ring. Multiple connecting rods are fixedly connected to one side of the slip ring, and a connecting block is fixedly connected to one end of each of the multiple connecting rods. A sliding groove is formed in the connecting block. Multiple through slots are formed on the outside of the connecting pipe, and a frame is fixedly connected to each of the multiple through slots. A baffle is movably connected to the frame, and the multiple baffles are in contact with each other. The top of the baffle passes through the frame and is fixed to a slide bracket by bolts, and the slide bracket is slidably connected to the sliding groove at the corresponding position.

[0012] Furthermore, a sealing ring is fixedly connected to the inner wall of the connecting pipe, and the baffle is in contact with the sealing ring.

[0013] Based on the aforementioned scheme, the blower assembly includes a support frame, which is fixed to the inner wall of the rotating tube by bolts. Multiple fan blades are fixedly connected to one side of the support frame. A second gear ring is fixedly connected to the outer wall of one end of the rotating tube. A mounting plate is fixedly connected to the outer wall of one side of the first housing. A second motor is fixedly connected to one side of the mounting plate. One end of the output shaft of the second motor passes through the mounting plate and is keyed to a second gear, which meshes with the second gear ring.

[0014] As a further embodiment of the present invention, a natural gas pipeline is fixedly connected to the outside of the connection port on the second housing, and a solenoid valve is fixedly connected to the natural gas pipeline.

[0015] Furthermore, the outer circumferential wall of the rotating tube is detachably connected to a protective shell by bolts, and the second toothed ring is located inside the protective shell.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a natural gas boiler burner with the following advantages:

[0018] 1. This invention introduces external air and natural gas into different guide shells and discharges them through through holes. The rotation of the guide shells and the rotation of the stirring plate enable more thorough mixing of natural gas and air, improve the gas mixing effect, lay the foundation for complete combustion, and further improve combustion efficiency.

[0019] 2. In this invention, the opening of the baffle is controlled by the shielding component, thereby adjusting the gas flow rate in the connecting pipe. Under different working conditions, the gas intake can be adjusted according to the needs of the staff, thus improving the effectiveness of the device.

[0020] 3. This utility model uses the fan blades of the blower assembly to rotate when the rotating tube rotates, drawing in surrounding air and accelerating air circulation in the combustion zone, increasing oxygen supply, promoting more complete combustion of natural gas, and improving energy utilization.

[0021] 4. In this invention, a protective shell is provided to protect the second toothed ring, preventing it from being damaged by external factors, extending the service life of the second toothed ring, further ensuring the stable operation of the equipment, and reducing maintenance costs and downtime caused by component damage. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a natural gas boiler burner proposed in this invention;

[0023] Figure 2 This is a schematic cross-sectional view of the second shell structure of a natural gas boiler burner proposed in this invention;

[0024] Figure 3 This is a schematic cross-sectional view of the flow guide shell structure of a natural gas boiler burner proposed in this invention;

[0025] Figure 4 This is a cross-sectional view of the connecting pipe structure of a natural gas boiler burner proposed in this invention;

[0026] Figure 5 This is a schematic cross-sectional view of the first casing structure of a natural gas boiler burner proposed in this invention.

[0027] In the diagram: 1. Air pump; 2. Support plate; 3. Fixing frame; 4. Connecting pipe; 5. Protective shell; 6. Fixing pipe; 7. Rotating pipe; 8. First shell; 9. Second shell; 10. Solenoid valve; 11. Natural gas pipeline; 12. Connecting shaft; 13. Stirring plate; 14. Guide shell; 15. Through hole; 16. First gear ring; 17. First gear; 18. Cylinder; 19. Connecting rod; 20. Slide groove; 21. Connecting block; 22. Slide frame; 23. Frame; 24. Baffle; 25. Sealing ring; 26. Slip ring; 27. Fan blade; 28. Second gear ring; 29. ​​Igniter; 30. Support frame; 31. Mounting plate; 32. Second gear. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figures 1-5 A natural gas boiler burner includes a second housing 9 and a first housing 8. Two connection ports are opened on one side of the second housing 9. An air supply assembly is provided on the outer side of the second housing 9. The air supply assembly includes a support plate 2. The support plate 2 is fixed to the outer wall of one side of the second housing 9 by bolts. An air pump 1 is fixed to the upper surface of the support plate 2 by bolts. One end of the air outlet of the air pump 1 is connected and fixed to its adjacent connection port. The air pump 1 delivers external gas to the guide shell 14 connected to the second housing 9.

[0030] Specifically, two guide shells 14 are rotatably connected to one inner wall of the second housing 9. Each guide shell 14 has multiple through holes 15. Natural gas and air are respectively contained within the two guide shells 14, and the air and natural gas are discharged into the cavity of the second housing 9 through connecting ports. A first toothed ring 16 is welded to the outer side of one end of each guide shell 14. A connecting shaft 12 is rotatably connected to one inner wall of the second housing 9. A first gear 17 is keyed to one end of the connecting shaft 12, and the first gear 17 meshes with the first toothed ring 16. A power assembly for driving the connecting shaft 12 to rotate is provided on one outer wall of the second housing 9. The rotation of shaft 12 causes the first gear 17 to drive the first gear ring 16 to rotate, thereby causing the guide shell 14 to rotate and further disperse the gas. The power assembly includes a fixed frame 3, which is fixed to the outer wall of one side of the second housing 9 by bolts. A first motor is fixed to one side of the fixed frame 3 by bolts, and one end of the output shaft of the first motor passes through the second housing 9 and is fixed to the connecting shaft 12. One end of the connecting shaft 12 is fixed to multiple stirring plates 13 by bolts. The rotation of the first motor causes the connecting shaft 12 to drive the stirring plates 13 to rotate, thereby turbulenting the gas in the second housing 9 and further mixing the gas.

[0031] It should be noted that one end of the first housing 8 is connected and fixed to the connecting pipe 4, and the second housing 9 is connected and fixed to the connecting pipe 4. The connecting pipe 4 is provided with a shielding assembly, which includes a cylinder 18. The cylinder 18 is fixed to the top outer wall of the connecting pipe 4 by bolts. A slip ring 26 is slidably connected to the outside of the connecting pipe 4, and one end of the piston rod of the cylinder 18 is fixed to the slip ring 26. Multiple connecting rods 19 are fixed to one side of the slip ring 26 by bolts. One end of each of the multiple connecting rods 19 is fixed to a connecting block 21 by bolts. A groove 20 is opened in the connecting block 21. Multiple through slots are opened on the outside of the connecting pipe 4. A frame 23 is fixed to each of the multiple through slots by bolts. A baffle 24 is slidably connected to the frame 23. Each baffle 24 is in contact with the others. The top of the baffle 24 passes through the frame 23 and is fixed to the slide 22 by bolts. The slide 22 is slidably connected to the corresponding slide groove 20. The cylinder 18 extends to move the slip ring 26 along the connecting pipe 4, thereby causing the connecting rod 19 to drive the connecting block 21 to move. At this time, the top of the slide 22 moves upward along the slide groove 20, thereby causing the baffle 24 to move upward along the frame 23. At this time, the multiple baffles 24 gradually separate, and the interior of the connecting pipe 4 is no longer blocked. The mixed gas enters the first housing 8 through the connecting pipe 4. The inner wall of the connecting pipe 4 is bonded with a sealing ring 25, and the baffle 24 is in contact with the sealing ring 25. The sealing ring 25 makes the connection between the baffle 24 and the connecting pipe 4 tighter.

[0032] In this invention, a rotating tube 7 is rotatably connected to the other end of the first housing 8, and a fixed tube 6 is rotatably connected to one end of the rotating tube 7. An igniter 29 is fixed to the first housing 8 by bolts, and the ignition port of the igniter 29 is located inside the first housing 8. The igniter 29 ignites the natural gas, causing it to burn inside the first housing 8. A blower assembly is provided inside the rotating tube 7. The blower assembly includes a support frame 30, which is fixed to the inner wall of the rotating tube 7 by bolts. Multiple fan blades 27 are fixed to one side of the support frame 30 by bolts. A second toothed ring 28 is fixed to the outer wall of one end of the rotating tube 7 by bolts. A mounting plate 31 is bolted to one side of the outer wall of the first housing 8. A second motor is bolted to one side of the mounting plate 31. One end of the output shaft of the second motor passes through the mounting plate 31 and is keyed to a second gear 32. The second gear 32 meshes with the second gear ring 28. The rotation of the second motor causes the second gear 32 to drive the second gear ring 28 to rotate, thereby causing the rotating tube 7 to rotate. The rotation of the rotating tube 7 causes the support frame 30 to drive the fan blade 27 to rotate. The airflow generated by the rotation of the fan blade 27 draws in the surrounding air and accelerates the air circulation in the combustion zone, thereby increasing the oxygen supply and promoting the combustion reaction.

[0033] Furthermore, a natural gas pipeline 11 is fixedly connected to the outside of the connection port on the second housing 9. A solenoid valve 10 is fixed to the natural gas pipeline 11 by bolts. When the solenoid valve 10 is opened, external natural gas enters the guide shell 14 connected to the second housing 9 through the natural gas pipeline 11. A protective shell 5 is detachably connected to the outer circumference of the rotating pipe 7 by bolts, and the second toothed ring 28 is located inside the protective shell 5. The protective shell 5 can protect the second toothed ring 28.

[0034] The working principle of this embodiment is as follows: When in use, the fixed pipe 6 is connected to the boiler heat exchange system through a pipeline, and the natural gas pipeline 11 is connected to the external natural gas supply equipment.

[0035] Open the solenoid valve 10 to allow external natural gas to enter the second housing 9 through the natural gas pipeline 11 into the guide shell 14 connected to it. At the same time, start the air pump 1. The air pump 1 delivers external gas to the guide shell 14 connected to it in the second housing 9. At this time, the two guide shells 14 contain natural gas and air respectively. The air and natural gas are discharged into the cavity of the second housing 9 through the connection port.

[0036] The first motor is started, and the rotation of the first motor causes the connecting shaft 12 to drive the stirring plate 13 to rotate, which turbulences the gas in the second shell 9 and further mixes the gas. At the same time, the rotation of the connecting shaft 12 causes the first gear 17 to drive the first gear ring 16 to rotate, which in turn causes the guide shell 14 to rotate and further disperse the gas.

[0037] When the cylinder 18 is activated, the cylinder 18 extends, causing the slip ring 26 to move along the connecting pipe 4, thereby causing the connecting rod 19 to drive the connecting block 21 to move. At this time, the top of the slide 22 moves upward along the slide groove 20, which in turn causes the baffle 24 to move upward along the frame 23. At this time, the multiple baffles 24 gradually separate, and the interior of the connecting pipe 4 is no longer blocked. The mixed gas enters the first housing 8 through the connecting pipe 4.

[0038] Ignition 29 ignites the natural gas, causing it to burn in the first housing 8. This starts the second motor, which in turn causes the second gear 32 to drive the second gear ring 28 to rotate, which in turn causes the rotating tube 7 to rotate. The rotation of the rotating tube 7 causes the support frame 30 to drive the fan blades 27 to rotate. The airflow generated by the rotation of the fan blades 27 draws in the surrounding air and accelerates the air circulation in the combustion zone, thereby increasing the oxygen supply and promoting the combustion reaction.

[0039] The high-temperature gas after combustion is output to the boiler heat exchange system through the fixed pipe 6, and the gas flow rate can be controlled by adjusting the opening of the baffle 24.

[0040] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0041] In the description herein, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections, mechanical connections, electrical connections, or direct connections. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0042] In the description herein, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A natural gas boiler burner, comprising a second housing (9) and a first housing (8), characterized in that, The second housing (9) is provided with an air supply assembly on its outer side. Two connection ports are opened on one side of the second housing (9). Two guide shells (14) are movably connected to the inner wall of one side of the second housing (9). Multiple through holes (15) are opened on the guide shells (14). A first gear ring (16) is fixedly connected to the outer side of one end of the guide shell (14). A connecting shaft (12) is movably connected to the inner wall of one side of the second housing (9). A first gear (17) is keyed to one end of the connecting shaft (12), and the first gear (17) meshes with the first gear ring (16). A drive connecting shaft is provided on the outer wall of one side of the second housing (9). 12) A rotating power assembly, one end of the connecting shaft (12) is fixedly connected to a plurality of stirring plates (13), one end of the first housing (8) is connected to a connecting pipe (4), and the second housing (9) is connected to the connecting pipe (4) and fixedly connected to it. A shielding assembly is provided on the connecting pipe (4). The other end of the first housing (8) is movably connected to a rotating pipe (7), one end of the rotating pipe (7) is movably connected to a fixed pipe (6), an igniter (29) is fixedly connected on the first housing (8), and the ignition port of the igniter (29) is located inside the first housing (8). A blower assembly is provided inside the rotating pipe (7).

2. A natural gas boiler burner according to claim 1, characterized in that, The air supply assembly includes a support plate (2), which is fixed to the outer wall of one side of the second housing (9) by bolts. An air pump (1) is fixedly connected to the upper surface of the support plate (2), and one end of the air outlet of the air pump (1) is connected and fixed to its adjacent connection port.

3. A natural gas boiler burner according to claim 1, characterized in that, The power assembly includes a mounting bracket (3), which is fixed to the outer wall of one side of the second housing (9) by bolts. A first motor is fixedly connected to one side of the mounting bracket (3), and one end of the output shaft of the first motor passes through the second housing (9) and is fixed to the connecting shaft (12).

4. A natural gas boiler burner according to claim 1, characterized in that, The shielding assembly includes a cylinder (18), which is fixed to the top outer wall of the connecting pipe (4) by bolts. A slip ring (26) is movably connected to the outside of the connecting pipe (4), and one end of the piston rod of the cylinder (18) is fixed to the slip ring (26). A plurality of connecting rods (19) are fixedly connected to one side of the slip ring (26), and a connecting block (21) is fixedly connected to one end of each of the plurality of connecting rods (19). A sliding groove (20) is provided in the connecting block (21). A plurality of through slots are provided on the outside of the connecting pipe (4), and a frame (23) is fixedly connected to each of the plurality of through slots. A baffle (24) is movably connected to the frame (23), and the plurality of baffles (24) are in contact with each other. The top of the baffle (24) passes through the frame (23) and is fixed to a slide (22) by bolts. The slide (22) is slidably connected to the corresponding sliding groove (20).

5. A natural gas boiler burner according to claim 4, characterized in that, The inner wall of the connecting pipe (4) is fixedly connected with a sealing ring (25), and the baffle (24) is in contact with the sealing ring (25).

6. A natural gas boiler burner according to claim 1, characterized in that, The blower assembly includes a support frame (30), which is fixed to the inner wall of the rotating tube (7) by bolts. A plurality of fan blades (27) are fixedly connected to one side of the support frame (30). A second gear ring (28) is fixedly connected to the outer wall of one end of the rotating tube (7). A mounting plate (31) is fixedly connected to the outer wall of one side of the first housing (8). A second motor is fixedly connected to one side of the mounting plate (31). One end of the output shaft of the second motor passes through the mounting plate (31) and is keyed to a second gear (32). The second gear (32) meshes with the second gear ring (28).

7. A natural gas boiler burner according to claim 1, characterized in that, A natural gas pipeline (11) is fixedly connected to the outside of the connection port on the second housing (9), and a solenoid valve (10) is fixedly connected to the natural gas pipeline (11).

8. A natural gas boiler burner according to claim 6, characterized in that, The outer circumferential wall of the rotating tube (7) is detachably connected to a protective shell (5) by bolts, and the second toothed ring (28) is located inside the protective shell (5).

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