Quick-change nozzle modular structure of split type multi-fuel burner

Abstract

The invention relates to the technical field of combustors, and discloses a quick-change nozzle modular structure of a split type multi-fuel combustor, the quick-change nozzle modular structure comprises a fuel pipe, a nozzle head and a combination device, the nozzle head is arranged on the lower surface of the fuel pipe, the combination device is arranged on the surface of the fuel pipe, the combination device comprises an assembly plate, and the assembly plate is fixedly connected with the fuel pipe. A cylinder is fixedly connected to the upper surface of the assembling plate, the driving end of the cylinder penetrates through the assembling plate and is fixedly connected with a driving rod, a circular plate is fixedly connected under the driving rod, a sliding groove is formed in the surface of the circular plate, and a sliding plate is slidably connected to the inner wall of the sliding groove in the surface of the circular plate. According to the invention, the nozzle head can be automatically and quickly replaced, manual disassembly is not needed, the tedious process caused by one-by-one screwing disassembly and installation of the nozzle head during manual operation can be reduced, the equipment shutdown waiting time caused by manual intervention is reduced, and the subsequent debugging time and maintenance cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of burners, in particular to a modular structure of a quick-change nozzle of a split multi-fuel burner. Background Art

[0002] The split multi-fuel burner is an advanced combustion equipment, which is composed of multiple parts such as the fuel supply unit, air supply unit, and combustion head unit. This design makes the components easy to install, debug and maintain, greatly improving the operability of the equipment. Its biggest feature is that it is compatible with a variety of fuels, such as natural gas, liquefied gas, diesel, heavy oil, etc., and can also adapt to special fuels such as biomass gas and biogas. Users can flexibly switch fuels according to factors such as fuel supply stability, cost, and environmental protection requirements, which can achieve full combustion of fuel and effectively improve thermal efficiency. At present, split multi-fuel burners are widely used in industrial boilers, kilns, heating furnaces and other equipment. The burner nozzle is a key component of the burner. Its main function is to spray the fuel in a specific form and manner so that it is fully mixed with the combustion air to achieve efficient and stable combustion.

[0003] The current process of disassembling and replacing burner nozzles is cumbersome and time-consuming, which not only easily interrupts the normal operation of the equipment, resulting in interruptions in production or use and increased downtime costs, but also may cause damage to other parts of the burner due to frequent disassembly, affecting the overall service life of the equipment. At the same time, if the replacement process is not performed properly, there are safety hazards such as fuel leakage, and re-debugging may be required after reinstallation, further extending the time it takes for the equipment to resume normal operation. For this reason, we propose a modular structure for the quick-change nozzle of the split multi-fuel burner. Summary of the Invention

[0004] A solved technical problem

[0005] In response to the shortcomings of the existing technology, the present invention provides a modular structure of quick-change nozzles for split multi-fuel burners, which solves the problem that the disassembly and replacement operations of existing burner nozzles are cumbersome and time-consuming, which not only easily interrupts the normal operation of the equipment, causing interruptions in production or use, and increasing downtime costs, but may also cause damage to other components of the burner due to frequent disassembly, affecting the overall service life of the equipment. At the same time, if the operation is improper during the replacement process, there are safety hazards such as fuel leakage, and re-debugging may be required after reinstallation, further extending the time it takes for the equipment to resume normal operation.

[0006] Second technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a modular structure of a quick-change nozzle of a split multi-fuel burner, comprising a fuel pipe, a nozzle head and a combination device, wherein the nozzle head is arranged on the lower surface of the fuel pipe, the combination device is arranged on the surface of the fuel pipe, the combination device comprises an assembly plate, the assembly plate is fixedly connected to the fuel pipe, a cylinder is fixedly connected to the upper surface of the assembly plate, the driving end of the cylinder passes through the assembly plate and is fixedly connected to a driving rod, a circular plate is fixedly connected directly below the driving rod, a sliding groove is provided on the surface of the circular plate, and the inner wall of the sliding groove on the surface of the circular plate is slidably connected There is a slide plate, the surface of the slide plate is fixedly connected to the cannula, the lower surface of the cannula is fixedly connected to the nozzle head, the nozzle head is communicated with the cannula, the lower surface of the assembly plate is provided with an interface, the interface is communicated with the fuel pipe, the cannula is inserted into the interface, there are five nozzle heads, and the five nozzle heads are arranged in a circular array along the circular plate. By setting up a combination device, the automatic and rapid replacement of the nozzle heads is realized without manual disassembly, which can reduce the tedious process caused by unscrewing and installing the nozzle heads one by one during manual operation, reduce the equipment downtime waiting time caused by manual intervention, and reduce the subsequent debugging time and maintenance costs.

[0008] Preferably, the surface of the circular plate is fixedly connected to a motor, the driving end of the motor is fixedly connected to a reel, the surface of the reel is provided with a belt, and the end of the belt away from the reel is fixedly connected to the slide plate. By setting the reel, the motor drives the winding and releasing of the belt. When winding, the slide plate can be pulled to drive the current nozzle head away from the center of the circular plate, so that it leaves the working position. When releasing, the slide plate is pushed in conjunction with the elastic force of the replacement spring, driving the nozzle head to be replaced to move toward the center of the circular plate, providing power and displacement control for the switching of the nozzle head, ensuring that the nozzle head can accurately and smoothly complete the movement away from and close to the center, thereby realizing the position switching of different nozzle heads.

[0009] Preferably, a replacement spring is provided on the surface of the tape, and the two ends of the replacement spring are fixedly connected to the slide plate and the circular plate respectively. By setting the replacement spring, when the motor-driven reel of the corresponding nozzle head releases the tape, an elastic thrust is generated after the tape is restrained, squeezing the slide plate, and then pushing the slide plate to drive the corresponding nozzle head to move toward the center of the circular plate until the baffle and the push rod are abutted to fix the position, providing power for the nozzle head to move toward the center, ensuring that the nozzle head can reach the specified position accurately and reliably, ensuring the accuracy of the subsequent docking of the cannula and the interface, and helping to smoothly complete the automated replacement process.

[0010] Preferably, a through hole is provided on the surface of the assembly plate, and the cannula is adapted to the through hole. By providing the cannula, the nozzle head and the interface of the equipment are connected to serve as a channel for transmitting fuel or other media. When the nozzle head is working, the cannula is inserted into the interface to ensure that the medium can be transported from the equipment through the interface and the cannula to the nozzle head, thereby realizing normal injection function.

[0011] Preferably, the lower surface of the circular plate is fixedly connected to a bracket, the surface of the bracket is fixedly connected to a push rod, and the lower surface of the slide is fixedly connected to a baffle, which is in contact with the push rod. By setting the baffle, when the nozzle head is driven by the slide to approach the center of the circular plate, it is abutted against the push rod to form a rigid limit, accurately limiting the moving position of the nozzle head, ensuring that the selected nozzle head can stably stay in the preset working position in the center of the circular plate, reducing its excessive movement or position deviation, ensuring the precise alignment of the nozzle head and the equipment interface, and providing a position reference for the subsequent smooth insertion of the cannula into the interface.

[0012] Preferably, a protective device is provided on the surface of the fuel pipe, and the protective device includes a disc, which is fixedly connected to the fuel pipe, a strip groove is opened on the surface of the fuel pipe, and a push plate is sleeved on the surface of the fuel pipe, and a clamping block is fixedly connected to the inner wall of the push plate, and the clamping block is slidably connected to the strip groove. By providing the protective device, when the cannula is not in use, a rubber column is inserted into the seal, which effectively prevents dust and other impurities from entering the interior of the cannula, reducing the impact of impurity accumulation on subsequent performance and sealing.

[0013] Preferably, the lower surface of the push plate is fixedly connected with rubber columns, and there are five rubber columns. The five rubber columns are adapted to the cannula, and the rubber columns are arranged in a circular array along the push plate. By arranging the rubber columns, the pressure spring pushes the push plate to be inserted into the cannula, thereby sealing the unused cannula, thereby effectively blocking dust and other impurities from entering the cannula, avoiding the accumulation of impurities in the cannula and affecting the performance and sealing during subsequent use, ensuring that the interior of the unused cannula remains clean during idle time, ensuring that it can work normally when it is replaced and used next time, and reducing problems such as nozzle head blockage, poor fuel flow or sealing failure caused by impurities.

[0014] Preferably, a pressure spring is fixedly connected to the lower surface of the disc, and the end of the pressure spring away from the disc is fixedly connected to the push plate. By setting the pressure spring, when the cannula is not in use and passes through the through hole, the pressure spring will push the push plate, causing the push plate to squeeze the rubber column, ensuring that the rubber column can be tightly inserted into the inside of the cannula, thereby achieving effective sealing of the unused cannula and preventing dust and other impurities from entering.

[0015] Preferably, a sealing device is provided on the inner wall of the fuel pipe, and the sealing device includes a sealing ring, which is fixedly connected to the fuel pipe, and a hollow groove is provided on the inner wall of the sealing ring, and a rubber pad is fixedly connected to the inner wall of the sealing ring, and one end of the sealing ring is fixedly connected to the air pipe, and one end of the air pipe is fixedly connected to a micro air pump, and the end of the micro air pump away from the air pipe is fixedly connected to a valve. By providing the sealing device, the sealing ring is inflated so that the rubber pad fits tightly with the cannula slot, thereby significantly enhancing the sealing of the connection between the interface and the cannula, greatly reducing the risk of fuel leakage, and improving the safety of use and fuel utilization.

[0016] Preferably, a groove is provided on the surface of the cannula, and the rubber pad is adapted to the groove. By providing the rubber pad, it expands and bulges as the gas increases, and then fits tightly with the groove on the surface of the cannula. The elasticity of the rubber material and the deformation after expansion are utilized to fill the gap at the connection between the interface and the cannula, forming a tight sealing structure, thereby enhancing the sealing of the connection, effectively preventing fuel from leaking from the connection between the interface and the cannula, improving the safety of equipment use and improving fuel utilization.

[0017] In summary, the technical effects and advantages of the present invention are as follows:

[0018] 1. In the present invention, by setting up a combined device, the nozzle head can be automatically and quickly replaced without manual disassembly, which can reduce the tedious process caused by unscrewing and installing the nozzle heads one by one during manual operation, reduce the equipment downtime waiting time caused by manual intervention, and reduce subsequent debugging time and maintenance costs.

[0019] 2. In the present invention, a protective device is provided, and a rubber column is inserted into the seal when the cannula is not in use, thereby effectively preventing dust and other impurities from entering the cannula, reducing the impact of impurity accumulation on subsequent performance and sealing.

[0020] 3. In the present invention, by providing a sealing device and inflating the sealing ring, the rubber pad fits tightly with the cannula slot, which significantly enhances the sealing performance of the connection between the interface and the cannula, greatly reduces the risk of fuel leakage, and improves safety of use and fuel utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the modular structure of the quick-change nozzle of the split multi-fuel burner of the present invention;

[0022] Figure 2 A bottom-up structural diagram of the modular structure of the quick-change nozzle of the split multi-fuel burner of the present invention;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the modular structure of the quick-change nozzle of the split multi-fuel burner of the present invention;

[0024] Figure 4 The invention is a modular structure of a quick-change nozzle of a split multi-fuel burner. Figure 3 A schematic diagram of the enlarged structure at point A;

[0025] Figure 5 A schematic diagram of the nozzle head structure of the modular structure of the quick-change nozzle of the split multi-fuel burner of the present invention;

[0026] Figure 6 Schematic diagram of the interface structure of the modular structure of the quick-change nozzle of the split multi-fuel burner of the present invention;

[0027] Figure 7 A schematic diagram of the protective device structure of the modular structure of the quick-change nozzle of the split multi-fuel burner of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the sealing device of the modular structure of the quick-change nozzle of the split multi-fuel burner of the present invention.

[0029] In the figure: 1. fuel pipe; 2. nozzle head; 3. assembly device; 31. circular plate; 32. cannula; 33. motor; 34. reel; 35. slide plate; 36. tape; 37. replacement spring; 38. push rod; 39. baffle; 310. cylinder; 311. assembly plate; 312. drive rod; 313. through hole; 314. bracket; 4. protective device; 41. push plate; 42. rubber column; 43. block; 44. strip groove; 45. circular plate; 46. pressure spring; 5. sealing device; 51. sealing ring; 52. rubber pad; 53. air pipe; 54. micro air pump; 55. valve; 56. slot; 6. interface. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] refer to Figures 1-8The modular structure of the quick-change nozzle of the split multi-fuel burner shown includes a fuel pipe 1, a nozzle head 2 and an assembly device 3. The nozzle head 2 is arranged on the lower surface of the fuel pipe 1, and the assembly device 3 is arranged on the surface of the fuel pipe 1. The assembly device 3 includes an assembly plate 311, which is fixedly connected to the fuel pipe 1. The upper surface of the assembly plate 311 is fixedly connected to a cylinder 310. The driving end of the cylinder 310 passes through the assembly plate 311 and is fixedly connected to a driving rod 312. A circular plate 31 is fixedly connected directly below the driving rod 312. A sliding groove is opened on the surface of the circular plate 31, and a slide plate 35 is slidably connected to the inner wall of the sliding groove on the surface of the circular plate 31. The surface of the slide plate 35 is fixedly connected to the insert tube 32, the lower surface of the insert tube 32 is fixedly connected to the nozzle head 2, the nozzle head 2 is communicated with the insert tube 32, and the lower surface of the assembly plate 311 is provided with an interface 6, the interface 6 is communicated with the fuel pipe 1, the insert tube 32 is inserted into the interface 6, there are five nozzle heads 2, and the five nozzle heads 2 are arranged in a circular array along the circular plate 31. By setting up the combination device 3, the automatic and rapid replacement of the nozzle heads 2 is realized without manual disassembly, which can reduce the tedious process caused by unscrewing and installing the nozzle heads 2 one by one during manual operation, reduce the equipment downtime waiting time caused by manual intervention, and reduce the subsequent debugging time and maintenance costs.

[0032] Among them, the surface of the circular plate 31 is fixedly connected to the motor 33, the driving end of the motor 33 is fixedly connected to the reel 34, the surface of the reel 34 is provided with a belt 36, and the end of the belt 36 away from the reel 34 is fixedly connected to the slide 35. By setting the reel 34, the motor 33 drives the reel 36 to be wound and released. When winding, it can pull the slide 35 to drive the current nozzle head 2 away from the center of the circular plate 31, so that it is out of the working position. When releasing, the elastic force of the replacement spring 37 pushes the slide 35, driving the nozzle head 2 to be replaced to move toward the center of the circular plate 31, providing power and displacement control for the switching of the nozzle head 2, ensuring that the nozzle head 2 can accurately and smoothly complete the movement away from and close to the center, thereby realizing the position switching of different nozzle heads 2.

[0033] Among them, the surface of the tape 36 is provided with a replacement spring 37, and the two ends of the replacement spring 37 are fixedly connected to the slide plate 35 and the circular plate 31 respectively. By setting the replacement spring 37, when the motor 33 of the corresponding nozzle head 2 drives the reel 34 to release the tape 36, an elastic thrust is generated after the tape 36 is lost, squeezing the slide plate 35, and then pushing the slide plate 35 to drive the corresponding nozzle head 2 to move toward the center of the circular plate 31 until the baffle 39 and the push rod 38 are abutted to achieve position fixation, providing power for the nozzle head 2 to move toward the center, ensuring that the nozzle head 2 can reach the specified position accurately and reliably, ensuring the accuracy of the subsequent docking of the cannula 32 with the interface 6, and helping to smoothly complete the automated replacement process.

[0034] Among them, a through hole 313 is opened on the surface of the assembly plate 311, and the cannula 32 is adapted to the through hole 313. By setting the cannula 32, the nozzle head 2 and the interface 6 of the equipment are connected as a channel for transmitting fuel or other media. When the nozzle head 2 is working, its cannula 32 is inserted into the interface 6 to ensure that the medium can be transported from the equipment through the interface 6 and the cannula 32 to the nozzle head 2, thereby realizing normal injection function.

[0035] Among them, the lower surface of the circular plate 31 is fixedly connected to the bracket 314, the surface of the bracket 314 is fixedly connected to the push rod 38, and the lower surface of the slide 35 is fixedly connected to the baffle 39, which is in contact with the push rod 38. By setting the baffle 39, when the nozzle head 2 is driven by the slide 35 to approach the center of the circular plate 31, it is abutted against the push rod 38 to form a rigid limit, accurately limiting the moving position of the nozzle head 2, ensuring that the selected nozzle head 2 can stably stay in the preset working position in the center of the circular plate 31, reducing its excessive movement or position deviation, ensuring the precise alignment of the nozzle head 2 and the equipment interface 6, and providing a position reference for the subsequent smooth insertion of the cannula 32 into the interface 6.

[0036] Among them, the surface of the fuel pipe 1 is provided with a protective device 4, which includes a disc 45, which is fixedly connected to the fuel pipe 1. The surface of the fuel pipe 1 is provided with a strip groove 44, and the surface of the fuel pipe 1 is provided with a push plate 41. The inner wall of the push plate 41 is fixedly connected with a clamping block 43, and the clamping block 43 is slidably connected to the strip groove 44. By providing the protective device 4, when the cannula 32 is not in use, the rubber column 42 is inserted into the seal, effectively preventing dust and other impurities from entering the interior of the cannula 32, reducing the impact of impurity accumulation on subsequent performance and sealing.

[0037] Among them, the lower surface of the push plate 41 is fixedly connected with rubber columns 42. There are five rubber columns 42, and the five rubber columns 42 are adapted to the cannula 32. The rubber columns 42 are arranged in a circular array along the push plate 41. By setting the rubber columns 42, the pressure spring 46 pushes the push plate 41 to be inserted into the cannula 32, sealing the unused cannula 32, thereby effectively blocking dust and other impurities from entering the cannula 32, avoiding the accumulation of impurities in the cannula 32 and affecting the performance and sealing during subsequent use, ensuring that the inside of the unused cannula 32 remains clean during idle time, ensuring that it can work normally when it is replaced and used next time, and reducing problems such as nozzle head 2 blockage, poor fuel flow or sealing failure caused by impurities.

[0038] Among them, a pressure spring 46 is fixedly connected to the lower surface of the disc 45, and the end of the pressure spring 46 away from the disc 45 is fixedly connected to the push plate 41. By setting the pressure spring 46, when the cannula 32 is not used to pass through the through hole 313, the pressure spring 46 will push the push plate 41, so that the push plate 41 squeezes the rubber column 42, ensuring that the rubber column 42 can be tightly inserted into the inside of the cannula 32, thereby achieving effective sealing of the unused cannula 32 and preventing dust and other impurities from entering.

[0039] Among them, the inner wall of the fuel pipe 1 is provided with a sealing device 5, which includes a sealing ring 51, which is fixedly connected to the fuel pipe 1, and a hollow groove is opened on the inner wall of the sealing ring 51. A rubber pad 52 is fixedly connected to the inner wall of the sealing ring 51, and one end of the sealing ring 51 is fixedly connected to the air pipe 53, and one end of the air pipe 53 is fixedly connected to a micro air pump 54. The end of the micro air pump 54 away from the air pipe 53 is fixedly connected to a valve 55. By providing the sealing device 5, the sealing ring 51 is inflated so that the rubber pad 52 fits tightly with the card slot 56 of the insert tube 32, which significantly enhances the sealing performance of the connection between the interface 6 and the insert tube 32, greatly reduces the risk of fuel leakage, and improves the safety of use and fuel utilization.

[0040] Among them, a groove 56 is opened on the surface of the insert tube 32, and the rubber pad 52 is adapted to the groove 56. By providing the rubber pad 52, it expands and bulges as the gas increases, and then fits tightly with the groove 56 on the surface of the insert tube 32. By utilizing the elasticity of the rubber material and the deformation after expansion, the gap at the connection between the interface 6 and the insert tube 32 is filled to form a tight sealing structure, thereby enhancing the sealing of the connection, effectively preventing fuel from leaking from the connection between the interface 6 and the insert tube 32, improving the safety of equipment use and improving fuel utilization.

[0041] The working principle of the present invention is as follows: by setting the combined device 3, when the equipment needs to switch to a different nozzle head 2, first the cylinder 310 is started to drive the driving rod 312 to squeeze downward, the circular plate 31 moves, and the cannula 32 is separated from the interface 6, and then the motor 33 drives the reel 34 to rotate, and the reel 34 rotates while reeling the tape 36. When the tape 36 is reeled, the slide 35 is pulled, and the slide 35 drives the nozzle head 2 in the center of the circular plate 31 away from the center. Then, the required nozzle head 2 is selected as needed, and the motor 33 of the corresponding nozzle head 2 is started. The motor 33 drives the reel 34 to release the tape 36, and the replacement spring 37 loses its restraint and squeezes the slide 35. The slide 35 drives the corresponding nozzle head 2 to move closer to the center of the circular plate 31 until the blocking piece 39 abuts against the rod 38. At this time, the nozzle head 2 is fixed and no longer moves. Then the cylinder 310 is started again and drives the driving rod 312 to reset. While the driving rod 312 resets, it drives the circular plate 31 to move upward until the cannula 32 of the new nozzle head 2 is inserted into the interface 6, and the nozzle head 2 is replaced.

[0042] By providing the protective device 4, when the cannula 32 is inserted into the interface 6, the other cannula 32 will pass through the through hole 313 and abut against the rubber column 42. Under the action of the pressure spring 46, the push plate 41 is pressed, and the push plate 41 squeezes the rubber column 42 into the cannula 32, sealing the other unused cannula 32 and preventing dust from entering during the placement process. When the nozzle head 2 needs to be replaced, the rubber column 42 will be pulled out by the cylinder 310.

[0043] By setting up the sealing device 5, after the newly replaced nozzle head 2 is inserted into the interface 6, the valve 55 is opened and the micro air pump 54 inflates the sealing ring 51 through the air pipe 53. As the gas increases, the rubber pad 52 expands and bulges and fits tightly with the groove 56 on the surface of the insertion tube 32. Then the valve 55 is closed and the rubber pad 52 fits with the groove 56 to reduce the leakage of fuel from the connection between the interface 6 and the insertion tube 32.

[0044] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device that performs control such as a computer.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modular structure of a quick-change nozzle for a split-type multi-fuel burner, comprising a fuel pipe (1), a nozzle head (2) and a combination device (3), characterized in that: The nozzle head (2) is arranged on the lower surface of the fuel pipe (1), and the assembly device (3) is arranged on the surface of the fuel pipe (1). The assembly device (3) comprises an assembly plate (311), the assembly plate (311) is fixedly connected to the fuel pipe (1), and a cylinder (310) is fixedly connected to the upper surface of the assembly plate (311). The driving end of the cylinder (310) passes through the assembly plate (311) and is fixedly connected to a driving rod (312). A circular plate (31) is fixedly connected directly below the driving rod (312), and a surface of the circular plate (31) is provided with A slide groove is provided, wherein the inner wall of the slide groove on the surface of the circular plate (31) is slidably connected to a slide plate (35), the surface of the slide plate (35) is fixedly connected to a plug (32), the lower surface of the plug (32) is fixedly connected to the nozzle head (2), the nozzle head (2) is connected to the plug (32), the lower surface of the assembly plate (311) is provided with an interface (6), the interface (6) is connected to the fuel pipe (1), the plug (32) is inserted into the interface (6), there are five nozzle heads (2), and the five nozzle heads (2) are arranged in a circular array along the circular plate (31).

2. The modular structure of the quick-change nozzle of the split multi-fuel burner according to claim 1 is characterized in that: A motor (33) is fixedly connected to the surface of the circular plate (31), a drive end of the motor (33) is fixedly connected to a reel (34), a reel (36) is sleeved on the surface of the reel (34), and an end of the reel (36) away from the reel (34) is fixedly connected to a slide plate (35).

3. The modular structure of the quick-change nozzle of the split multi-fuel burner according to claim 2 is characterized in that: A replacement spring (37) is sleeved on the surface of the coiled belt (36), and two ends of the replacement spring (37) are fixedly connected to the slide plate (35) and the circular plate (31) respectively.

4. The modular structure of the quick-change nozzle of the split multi-fuel burner according to claim 3 is characterized in that: A through hole (313) is provided on the surface of the assembly plate (311), and the inserting tube (32) is adapted to the through hole (313).

5. The modular structure of quick-change nozzles for a split multi-fuel burner according to claim 4, characterized in that: The lower surface of the circular plate (31) is fixedly connected to a bracket (314), the surface of the bracket (314) is fixedly connected to a push rod (38), and the lower surface of the slide plate (35) is fixedly connected to a blocking piece (39), and the blocking piece (39) is in contact with the push rod (38).

6. The modular structure of quick-change nozzles for a split multi-fuel burner according to claim 1, characterized in that: The surface of the fuel pipe (1) is provided with a protective device (4), the protective device (4) comprising a disc (45), the disc (45) being fixedly connected to the fuel pipe (1), the surface of the fuel pipe (1) being provided with a strip groove (44), the surface of the fuel pipe (1) being sleeved with a push plate (41), the inner wall of the push plate (41) being fixedly connected with a clamping block (43), the clamping block (43) being slidably connected to the strip groove (44).

7. The modular structure of quick-change nozzles for a split multi-fuel burner according to claim 6, characterized in that: The lower surface of the push plate (41) is fixedly connected with a rubber column (42), and there are five rubber columns (42). The five rubber columns (42) are adapted to the insertion tube (32), and the rubber columns (42) are arranged in a circular array along the push plate (41).

8. The modular structure of quick-change nozzles for a split multi-fuel burner according to claim 7, characterized in that: A pressure spring (46) is fixedly connected to the lower surface of the disc (45), and one end of the pressure spring (46) away from the disc (45) is fixedly connected to the push plate (41).

9. The modular structure of quick-change nozzles for a split multi-fuel burner according to claim 1, characterized in that: The inner wall of the fuel pipe (1) is provided with a sealing device (5), the sealing device (5) comprising a sealing ring (51), the sealing ring (51) being fixedly connected to the fuel pipe (1), the inner wall of the sealing ring (51) being provided with a hollow groove, the inner wall of the sealing ring (51) being fixedly connected to a rubber pad (52), one end of the sealing ring (51) being fixedly connected to an air pipe (53), one end of the air pipe (53) being fixedly connected to a micro air pump (54), and the end of the micro air pump (54) away from the air pipe (53) being fixedly connected to a valve (55).

10. The modular structure of quick-change nozzles for a split multi-fuel burner according to claim 9, characterized in that: A slot (56) is provided on the surface of the insertion tube (32), and the rubber pad (52) is adapted to the slot (56).

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