Multi-stage injection low-nitrogen combustion head
By using electric cylinders, motors, gears and other components in the multi-stage injection low-nitrogen combustion head, the automatic cleaning system is designed, which solves the problem of the igniter being covered with impurities, and realizes automatic cleaning and simplified operation.
Patent Information
- Application Number
- CN202421921250.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-09
AI Technical Summary
During the use of existing multi-stage injection low-nitrogen combustion heads, the igniter is easily covered by impurities such as smoke and dust, which affects the working performance of the igniter and is cumbersome to clean.
A multi-stage injection low-nitrogen combustion head is designed, using components such as electric cylinders, motors, gears, gears, gears, brackets, cleaning brushes and torsion spring shafts. The ignitor is pulled into the electric cylinder, and the torsion spring shaft drives the baffle to block the bottom of the ignitor to delay the accumulation of impurities; when the end of the ignitor is covered by impurities, the motor drives the brackets and cleaning brushes rotate to automatically clean the impurities.
It effectively reduces the contact between impurities caused by combustion and the igniter, delays the dirty end of the igniter, simplifies the cleaning process, realizes automatic cleaning, and is simple and convenient to operate.
Smart Images
Figure CN222951049U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of low-nitrogen burners, in particular to a multi-stage injection low-nitrogen combustion head. Background Art
[0002] The multi-stage injection low-nitrogen burner head mainly uses staged combustion technology, for example, the combustion is divided into three zones, namely the first combustion zone, the second combustion zone and the reduction zone. This technology can significantly reduce the emission of nitrogen oxides and improve combustion efficiency.
[0003] Existing multi-stage injection low-nitrogen burner heads usually require an igniter to ignite a mixture of fuel and air. After being used for a period of time, the surface of the igniter is easily covered with solid and viscous substances such as smoke produced after combustion, which will affect the ignition work of the igniter. Therefore, the igniter needs to be disassembled and cleaned regularly, which is a cumbersome operation. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide a multi-stage injection low-nitrogen combustion head to solve the technical problems mentioned in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage injection low-nitrogen burner head, comprising a burner head body, a shell and an igniter, an electric cylinder is installed on the top of the shell through a cover plate, a motor is installed on one side of the top of the shell, and a gear is connected to the output end of the motor, a bracket is connected to the lower part of the shell, and a gear ring is sleeved on the outside of the bracket, a baffle is connected to the inside of the bracket through a torsion spring shaft, and a cleaning brush is connected to the top of the baffle.
[0006] By adopting the above technical solution, when the igniter is no longer needed, the igniter is pulled into the housing by the electric cylinder, and at the same time, the torsion spring shaft drives the baffle to close to cover the bottom of the igniter, thereby reducing the contact between impurities generated by combustion and the igniter, so as to delay the end of the igniter from becoming dirty; when the end of the igniter is used for too long and is covered with impurities, the output end of the motor drives the bracket to rotate through the gear and the gear ring, and the bracket drives the baffle to rotate horizontally, thereby driving the cleaning brush to rotate horizontally, so that the cleaning brush and the end of the igniter move relative to each other, thereby facilitating the brushing of impurities on the end of the igniter.
[0007] Furthermore, the top of the bracket is round and the bottom of the bracket is square.
[0008] By adopting the above technical solution, the top of the bracket is round, which is convenient for the bracket to rotate horizontally in the shell, and the bottom of the bracket is square, which is convenient for the baffle to rotate vertically inside the bracket.
[0009] Furthermore, the baffle is rotatably connected to the bracket via a torsion spring shaft, and the bracket is rotatably connected to the housing.
[0010] By adopting the above technical solution, the igniter is pulled into the housing by the electric cylinder, and at the same time the torsion spring shaft drives the baffle to close to cover the bottom of the igniter. When the end of the igniter is used for too long and is covered with impurities, the motor output end drives the bracket to rotate through the gear and the gear ring.
[0011] Furthermore, the cleaning brush is a wire brush, and the cleaning brush abuts against the bottom of the igniter.
[0012] By adopting the above technical solution, the bracket drives the baffle to rotate horizontally, thereby driving the cleaning brush to rotate horizontally, so that the cleaning brush and the end of the igniter move relative to each other, thereby facilitating the brushing off of impurities on the end of the igniter.
[0013] Furthermore, two baffles, two cleaning brushes and two torsion spring shafts are each provided, and the two baffles and two cleaning brushes are provided in mirror image.
[0014] By adopting the above technical solution, the baffle half switch can shorten the height space required for the baffle to rotate, thereby improving the space utilization, while the two cleaning brushes are adapted to the arrangement of the two baffles.
[0015] Furthermore, the shell is connected to one side of the top of the burner head body, an air inlet and a fuel inlet are respectively arranged on the back of the burner head body, and a burner port is arranged on one side of the burner head body.
[0016] By adopting the above technical solution, when the burner head body is started, air enters through the air inlet and fuel enters through the fuel inlet. The fuel and air are mixed in the burner head body and ignited by the igniter, causing flames to spray out of the burner port.
[0017] Furthermore, bolts are provided between the cover plate and the shell, and the cover plate is detachably connected to the shell through the bolts.
[0018] By adopting the above technical solution, the staff removes the bolts on the cover and then disassembles the cover, thereby taking the igniter out of the shell. After replacing the igniter, the staff puts the igniter into the shell and fits the cover with the top of the shell. Then the staff passes the bolts through the cover and the shell and tightens them to complete the replacement.
[0019] Furthermore, the output end of the electric cylinder is connected to a mounting seat, the top of the igniter is connected to a sleeve, and a bolt is connected between the sleeve and the mounting seat.
[0020] By adopting the above technical solution, the staff removes the bolts between the sleeve and the mounting seat, and then removes the sleeve from the mounting seat, thereby completing the disassembly of the worn-out igniter. After that, the staff prepares a new igniter and directly puts the sleeve on the new igniter on the mounting seat. After that, the staff passes the bolts through the sleeve and the mounting seat and tightens them, thereby completing the assembly operation of the new igniter.
[0021] In summary, the utility model mainly has the following beneficial effects:
[0022] 1. The utility model adopts the arrangement of the electric cylinder, the baffle and the torsion spring shaft. After the igniter is no longer needed, the igniter is pulled into the housing by the electric cylinder, and at the same time, the torsion spring shaft drives the baffle to close to shield the bottom of the igniter, thereby reducing the contact between impurities generated by combustion and the igniter, so as to delay the end of the igniter from becoming dirty; reducing the contact between impurities and the igniter, thereby reducing the cleaning interval;
[0023] 2. The utility model is provided with a motor, gears, gear rings, brackets and cleaning brushes. When the end of the igniter is used for too long and is covered with impurities, the output end of the motor drives the bracket to rotate through the gears and gear rings. The bracket drives the baffle to rotate horizontally, thereby driving the cleaning brush to rotate horizontally, so that the cleaning brush and the end of the igniter move relative to each other, thereby facilitating the brushing of impurities on the end of the igniter. Automatic cleaning is convenient, no disassembly and cleaning is required, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of the utility model;
[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of the utility model;
[0026] Figure 3 This is a schematic diagram of the structure of the bracket of the utility model when viewed from above;
[0027] Figure 4 The utility model is a schematic diagram of the explosion structure of the igniter.
[0028] In the figure: 1. combustion head body; 2. air inlet; 3. fuel inlet; 4. combustion port; 5. igniter; 6. housing; 7. motor; 8. electric cylinder; 9. cover plate; 10. gear; 11. gear ring; 12. bracket; 13. baffle; 14. cleaning brush; 15. torsion spring shaft; 16. sleeve; 17. bolt; 18. mounting base. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0030] The following describes an embodiment of the utility model based on its overall structure.
[0031] Embodiment 1:
[0032] A multi-stage injection low nitrogen combustion head, such as Figure 1-Figure 4 As shown, it includes a combustion head body 1, a shell 6 and an igniter 5. An electric cylinder 8 is installed on the top of the shell 6 through a cover plate 9. A bracket 12 is connected to the lower part of the shell 6. A baffle 13 is connected to the inside of the bracket 12 through a torsion spring shaft 15. The baffle 13 is rotatably connected to the bracket 12 through the torsion spring shaft 15. The igniter 5 is pulled into the shell 6 by the electric cylinder 8. At the same time, the torsion spring shaft 15 drives the baffle 13 to close to block the bottom of the igniter 5, thereby reducing the contact between impurities generated by combustion and the igniter 5; a cleaning brush 14 is connected to the top of the baffle 13. The cleaning brush 14 is a wire brush. The cleaning brush 14 abuts against the bottom of the igniter 5 to block the igniter 5. There are two plates 13, cleaning brushes 14 and torsion spring shafts 15, and the two baffles 13 and cleaning brushes 14 are mirror-imaged. A motor 7 is installed on one side of the top of the shell 6, and a gear 10 is connected to the output end of the motor 7. A gear ring 11 is sleeved on the outside of the bracket 12. The top of the bracket 12 is round, and the bottom of the bracket 12 is square. The bracket 12 is rotatably connected to the shell 6. The output end of the motor 7 drives the bracket 12 to rotate through the gear 10 and the gear ring 11. The bracket 12 drives the baffle 13 to rotate horizontally, thereby driving the cleaning brush 14 to rotate horizontally, so that the cleaning brush 14 and the end of the igniter 5 move relative to each other, thereby facilitating the brushing of impurities at the end of the igniter 5.
[0033] See also Figure 1 In the above embodiment, the shell 6 is connected to one side of the top of the burner head body 1, and the back of the burner head body 1 is respectively provided with an air inlet 2 and a fuel inlet 3, and one side of the burner head body 1 is provided with a burner port 4. When the burner head body 1 is started, air enters through the air inlet 2, and fuel enters through the fuel inlet 3. The fuel and air are mixed in the burner head body 1 and ignited by the igniter 5, so that the burner port 4 sprays out flames.
[0034] Embodiment 2:
[0035] On the basis of the above-mentioned embodiment 1, in order to facilitate the replacement of the old and damaged igniter 5, the following settings are now adopted.
[0036] See also Figure 2-Figure 4In the above embodiment, bolts 17 are provided between the cover plate 9 and the housing 6, and the cover plate 9 is detachably connected to the housing 6 by the bolts 17. The staff removes the bolts 17 on the cover plate 9 and then removes the cover plate 9, thereby taking out the igniter 5 from the housing 6; the output end of the electric cylinder 8 is connected to the mounting seat 18, and the top of the igniter 5 is connected to the sleeve 16, and the bolts 17 are connected between the sleeve 16 and the mounting seat 18. The staff removes the bolts 17 between the sleeve 16 and the mounting seat 18, and then removes the sleeve 16 from the mounting seat 18, thereby completing the disassembly of the worn-out igniter 5.
[0037] The implementation principle of the utility model is as follows: first, when the burner head body 1 is started, air enters through the air inlet 2, and fuel enters through the fuel inlet 3. The fuel and air are mixed in the burner head body 1 and ignited by the igniter 5, so that the burner port 4 ejects flames;
[0038] When the igniter 5 is no longer needed, the igniter 5 is pulled into the housing 6 by the electric cylinder 8, and at the same time, the torsion spring shaft 15 drives the baffle 13 to close to cover the bottom of the igniter 5, thereby reducing the contact between the impurities generated by the combustion and the igniter 5, so as to delay the end of the igniter 5 from becoming dirty. When the end of the igniter 5 is covered with impurities due to long-term use, the output end of the motor 7 drives the bracket 12 to rotate through the gear 10 and the gear ring 11, and the bracket 12 drives the baffle 13 to rotate horizontally, thereby driving the cleaning brush 14 to rotate horizontally, so that the cleaning brush 14 and the end of the igniter 5 move relative to each other, so as to facilitate the brushing off of the impurities at the end of the igniter 5;
[0039] When the igniter 5 is needed, the output end of the electric cylinder 8 drives the igniter 5 to move downward. After the igniter 5 moves downward, it pushes open the baffle 13, causing the baffle 13 to rotate downward and compress the torsion spring shaft 15. At the same time, impurities on the baffle 13 and the cleaning brush 14 can fall into the combustion head body 1 and be taken away by the ejected flame.
[0040] When the igniter 5 is damaged and needs to be replaced, the staff removes the bolts 17 on the cover plate 9 and then disassembles the cover plate 9, thereby removing the igniter 5 from the housing 6. At this time, the staff removes the bolts 17 between the sleeve 16 and the mounting seat 18, and then removes the sleeve 16 from the mounting seat 18, thereby completing the disassembly of the worn-out igniter 5. Thereafter, the staff prepares a new igniter 5, and directly puts the sleeve 16 on the new igniter 5 on the mounting seat 18. Thereafter, the staff passes the bolts 17 through the sleeve 16 and the mounting seat 18 and tightens them, thereby completing the assembly operation of the new igniter 5. Thereafter, the staff places the igniter 5 into the housing 6 and fits the cover plate 9 with the top of the housing 6. Thereafter, the staff passes the bolts 17 through the cover plate 9 and the housing 6 and tightens them, thereby completing the replacement work.
[0041] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A multi-stage injection low nitrogen burner, comprising a burner body (1), a housing (6) and an igniter (5), characterized in that: An electric cylinder (8) is installed on the top of the housing (6) via a cover plate (9); a motor (7) is installed on one side of the top of the housing (6); and a gear (10) is connected to the output end of the motor (7); a bracket (12) is connected to the bottom of the housing (6); and a gear ring (11) is sleeved on the outside of the bracket (12); a baffle (13) is connected to the inside of the bracket (12) via a torsion spring shaft (15); and a cleaning brush (14) is connected to the top of the baffle (13).
2. The multi-stage injection low nitrogen burner according to claim 1 is characterized in that: The top of the bracket (12) is circular, and the bottom of the bracket (12) is square.
3. The multi-stage injection low nitrogen burner according to claim 2 is characterized in that: The baffle (13) is rotatably connected to the bracket (12) via a torsion spring shaft (15), and the bracket (12) is rotatably connected to the housing (6).
4. The multi-stage injection low nitrogen burner according to claim 1 is characterized in that: The cleaning brush (14) is a wire brush, and the cleaning brush (14) abuts against the bottom of the igniter (5).
5. The multi-stage injection low nitrogen burner according to claim 4 is characterized in that: The baffle plate (13), the cleaning brush (14) and the torsion spring shaft (15) are each provided with two baffle plates (13) and the cleaning brush (14) are both provided in a mirror-like manner.
6. The multi-stage injection low nitrogen burner according to claim 1 is characterized in that: The shell (6) is connected to one side of the top of the burner head body (1); an air inlet (2) and a fuel inlet (3) are respectively arranged on the back of the burner head body (1); and a burner port (4) is arranged on one side of the burner head body (1).
7. The multi-stage injection low nitrogen burner according to claim 1 is characterized in that: Bolts (17) are provided between the cover plate (9) and the outer shell (6), and the cover plate (9) is detachably connected to the outer shell (6) via the bolts (17).
8. The multi-stage injection low nitrogen burner according to claim 1 is characterized in that: The output end of the electric cylinder (8) is connected to a mounting seat (18), the top of the igniter (5) is connected to a sleeve (16), and a bolt (17) is connected between the sleeve (16) and the mounting seat (18).