Nozzle structure of a low-nitrogen burner

Abstract

The utility model relates to a kind of nozzle structure of low-nitrogen burner, belong to burner technical field, a kind of nozzle structure of low-nitrogen burner, including low-nitrogen burner front end, the inside of low-nitrogen burner front end is provided with connecting pipe, one end of the connecting pipe is provided with quick replacement assembly, one end of the quick replacement assembly is provided with burner nozzle, the outer wall of low-nitrogen burner front end is provided with adjusting assembly, the utility model is moved by rotating screw and drives connecting frame, moves one baffle, connecting rod rotates in turn, the movement of baffle drives other baffle synchronous movement, to adjust the opening angle of burner nozzle front end in this way, adapt to different load conditions, optimize air-fuel ratio, strengthen low-nitrogen effect.

Description

Technical Field

[0001] This utility model belongs to the field of burner technology, specifically relating to a nozzle structure for a low-NOx burner. Background Technology

[0002] By optimizing the fuel-air mixing path of the nozzle and adjusting the temperature of the combustion zone, nitrogen oxide generation is suppressed at the source to meet environmental emission regulations. At the same time, combustion efficiency is ensured, fuel waste is avoided, combustion stability is improved, carbon deposits and coking problems are reduced, the life of the combustion system is extended, and it is adaptable to different fuels and operating conditions. It provides enterprises with flexible low-nitrogen solutions, balances environmental protection requirements and production needs, and promotes the green and low-carbon transformation of the industrial sector.

[0003] In existing technologies, some nozzle structures control the flame angle by adjusting the nozzle angle, but the baffle at the nozzle tip has certain limitations. In order to improve the adjustment opening and closing angle and optimize the air-fuel ratio, a nozzle structure for a low-NOx burner is needed. Utility Model Content

[0004] The purpose of this invention is to provide a nozzle structure for a low-NOx burner that is simple in structure and reasonably designed in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A nozzle structure for a low-NOx burner includes a low-NOx burner front end, a connecting pipe is provided inside the low-NOx burner front end, a quick-change component is provided at one end of the connecting pipe, a burner nozzle is provided at one end of the quick-change component, and an adjustment component is provided on the outer wall of the low-NOx burner front end.

[0006] As a further optimization of this utility model, the quick-change component includes a rotating ring one fixedly connected to one end of the connecting pipe, and a rotating ring two detachably connected to the other end of the rotating ring one. Two fixing protrusions are fixedly connected to the outer wall of the rotating ring one, and two engaging grooves are fixedly connected to the outer wall of the rotating ring two. The inner wall of the engaging groove engages with the outer wall of the fixing protrusion.

[0007] As a further optimization of this utility model, a sealing ring is provided between the first rotating ring and the second rotating ring, and one end of the second rotating ring is fixedly connected to the input end of the burner nozzle.

[0008] As a further optimization of this utility model, the adjustment component includes a fixed frame fixedly connected to one end of the front end of the low-NOx burner. A screw is threadedly connected to the top of the fixed frame, and a slider is threadedly connected to one end of the screw. A connecting frame is movably connected to the outer wall of the slider. Multiple connecting blocks are fixedly connected to the inner wall of the fixed frame. A connecting rod is rotatably connected to the inner side of each of the multiple connecting blocks. A baffle is fixedly connected to the outer wall of each connecting rod. Mounting blocks fixed to the top of the baffles are rotatably connected between the connecting frames.

[0009] As a further optimization of this utility model, a pressure gauge is fixedly connected to the top of the front end of the low-NOx burner, and an ignition system connected to the burner nozzle is fixedly connected to the side wall of the front end of the low-NOx burner.

[0010] As a further optimization of this utility model, the other end of the connecting pipe is fixedly connected to an oil supply system, and the outer side of the burner nozzle abuts against the connection between the front end of the low-NOx burner and the fixed frame.

[0011] The beneficial effects of this utility model are as follows: This invention uses a rotating screw to move a slider, which in turn rotates the connecting frame 503, slider 508, and mounting block 507, causing a baffle 505 to move. This movement of the connecting frame and the baffle causes other baffles to move synchronously, thereby adjusting the opening angle of the burner nozzle tip to adapt to different load conditions, optimize the air-fuel ratio, and enhance the low-NOx effect.

[0012] This invention uses a rotating nozzle to drive the rotating ring to rotate, causing the locking groove to separate from the fixed protrusion. After removing the old nozzle, a new nozzle can be replaced and the above steps can be reversed to complete the replacement. It can quickly replace the corresponding nozzle according to the fuel type and working conditions. When the nozzle fails, it can be quickly disassembled and replaced with a new nozzle, shortening the equipment downtime cycle and ensuring production continuity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a view showing the interaction between the burner nozzle of this utility model and the front end of the low-NOx burner; Figure 3 This is a view showing the connection between the connecting pipe and the rotating ring of this utility model. Figure 4 This is a schematic diagram of the quick-change component structure of this utility model; Figure 5 This is a schematic diagram of the adjustment component structure of this utility model; Figure 6 This is a view of the fixing protrusion and the engaging groove of this utility model. Figure 7This is a view of the slider and connecting frame of this utility model in action.

[0014] In the diagram: 1. Front end of low-NOx burner; 2. Connecting pipe; 3. Burner nozzle; 4. Quick-change assembly; 401. Rotating ring one; 402. Sealing ring; 403. Rotating ring two; 404. Fixing protrusion; 405. Engaging groove; 5. Adjustment assembly; 501. Fixing frame; 502. Screw; 503. Connecting bracket; 504. Connecting block; 505. Baffle; 506. Connecting rod; 507. Mounting block; 508. Slider. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0016] Example 1 like Figure 1 , Figure 2 As shown, a nozzle structure for a low-NOx burner includes a low-NOx burner front end 1, which serves as the mounting base and outer casing for the overall structure. A connecting pipe 2 is installed inside the low-NOx burner front end 1 for transporting fuel. A pressure gauge is fixedly connected to the top of the low-NOx burner front end 1 to monitor the fuel pressure inside the burner in real time to ensure safe and stable operation. The other end of the connecting pipe 2 is fixedly connected to an oil supply system, which includes an oil pump and a filter. The oil pump pressurizes and transports fuel, while the filter purifies the fuel to prevent clogging. The oil supply system is existing technology and will not be described in detail in this invention. The oil supply system provides a continuous fuel supply to the burner to ensure uninterrupted combustion.

[0017] like Figure 1 , Figure 3 , Figure 4 , Figure 6As shown, a quick-change assembly 4 is provided at one end of the connecting pipe 2. The quick-change assembly 4 is used to achieve quick disassembly and installation to improve maintenance efficiency. A burner nozzle 3 is provided at one end of the quick-change assembly 4. The burner nozzle 3 is used to atomize and spray the fuel to achieve complete combustion. An ignition system connected to the burner nozzle 3 is fixedly connected to the side wall of the front end 1 of the low-NOx burner. The ignition system includes an ignition electrode and a high-voltage transformer. The high-voltage transformer generates high voltage, and the electrode discharges to ignite the fuel. The ignition system is existing technology and will not be described in detail in this utility model. The ignition system can provide ignition energy to ignite the fuel when the fuel is sprayed from the burner nozzle 3. The quick-change assembly 4 includes a rotating ring 401. The rotating ring 401 serves as the connection base of the connecting pipe 2. One end of the rotating ring 401 is fixedly connected to one end of the connecting pipe 2. The rotating ring 401 and the connecting pipe 2 form a stable connection to ensure the fuel delivery channel. For sealing, a second rotating ring 403 is detachably connected to the other end of the first rotating ring 401. The second rotating ring 403 cooperates with the first rotating ring 401. Two fixing protrusions 404 are fixedly connected to the outer wall of the first rotating ring 401. The fixing protrusions 404 are used to provide a locking base. Two engaging grooves 405 are fixedly connected to the outer wall of the second rotating ring 403. The engaging grooves 405 fix the second rotating ring 403 to the first rotating ring 401 through engaging with the fixing protrusions 404. The inner wall of the engaging grooves 405 engages with the outer wall of the fixing protrusions 404, quickly realizing the fixing and separation of the two. A sealing ring 402 abuts between the first rotating ring 401 and the second rotating ring 403. The sealing ring 402 enhances the sealing of the connection between the two to prevent fuel leakage. One end of the second rotating ring 403 is fixedly connected to the input end of the burner nozzle 3. The burner nozzle 3 can rotate with the second rotating ring 403 to realize installation and removal.

[0018] like Figure 1 , Figure 2 , Figure 5 , Figure 7As shown, an adjustment component 5 is provided on the outer wall of the front end 1 of the low-NOx burner. The adjustment component 5 is used to adjust the opening angle of the front end of the burner nozzle 3 to control the fuel injection amount and combustion effect. The adjustment component 5 includes a fixed frame 501, which provides installation support for other components of the adjustment component 5. The outer side of the fixed frame 501 is fixedly connected to one end of the front end 1 of the low-NOx burner. The adjustment component 5 and the front end 1 of the low-NOx burner form an integral structure. A screw 502 is threadedly connected to the top of the fixed frame 501. The screw 502 is used to provide movement guidance. A slider 508 is threadedly connected to one end of the screw 502. A connecting frame 503 is movably connected to the outer wall of the slider 508. The slider 508 moves in the groove inside the connecting frame 503. When the screw 502 rotates, it drives the slider 508 to slide. At the same time, the round rods at both ends of the slider 508 and the connecting frame 503 rotate. The rotation of the screw 502 is converted into the linear movement of the connecting frame 503. Multiple connecting blocks 504 are fixedly connected to the inner wall of the fixed frame 501. The connecting blocks 504 are used to provide a rotation fulcrum. Connecting rods 506 are rotatably connected to the inner side of the multiple connecting blocks 504. The connecting rods 506 are used to provide an installation base. Baffles 505 are fixedly connected to the outer wall of the connecting rods 506. The movement of the baffles 505 can change the opening and closing angle of the front end of the burner nozzle 3. Mounting blocks 507 are rotatably connected between the connecting frames 503 and fixed to the top of the baffles 505. The mounting blocks 507 are fixed on a baffle 505. When the connecting frame 503 moves, it rotates with the mounting blocks 507. The outer side of the burner nozzle 3 abuts against the connection between the front end 1 of the low-NOx burner and the fixed frame 501, ensuring the stability of the burner nozzle 3 after installation and the accuracy of the fuel injection direction.

[0019] It should be noted that, in use, the nozzle structure of this low-NOx burner first rotates the screw 502, which then drives the slider 508 to move, causing the connecting frame 503, slider 508, and mounting block 507 to rotate, causing one baffle 505 to move. Then the connecting rod 506 rotates, causing other baffles 505 to move, thereby adjusting the opening angle of the front end of the burner nozzle 3.

[0020] When replacing the burner nozzle 3, first rotate the burner nozzle 3, then rotate the rotating ring 403 so that the engaging groove 405 is separated from the fixed protrusion 404. Then remove the burner nozzle 3 to replace other burner nozzles 3. Repeat the above operation to complete the replacement of the new burner nozzle 3.

[0021] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A nozzle structure for a low-NOx burner, characterized in that, It includes a low-NOx burner front end (1), a connecting pipe (2) is provided inside the low-NOx burner front end (1), a quick-change component (4) is provided at one end of the connecting pipe (2), a burner nozzle (3) is provided at one end of the quick-change component (4), and an adjustment component (5) is provided on the outer wall of the low-NOx burner front end (1).

2. The nozzle structure of a low-NOx burner according to claim 1, characterized in that: The quick-change assembly (4) includes a rotating ring one (401) fixedly connected to one end of the connecting tube (2), and a rotating ring two (403) detachably connected to the other end of the rotating ring one (401). Two fixing protrusions (404) are fixedly connected to the outer wall of the rotating ring one (401), and two engaging grooves (405) are fixedly connected to the outer wall of the rotating ring two (403). The inner wall of the engaging groove (405) engages with the outer wall of the fixing protrusion (404).

3. The nozzle structure of a low-NOx burner according to claim 2, characterized in that: The rotating ring one (401) and the rotating ring two (403) are abutted together by a sealing ring (402), and one end of the rotating ring two (403) is fixedly connected to the input end of the burner nozzle (3).

4. The nozzle structure of a low-NOx burner according to claim 1, characterized in that: The adjustment assembly (5) includes a fixed frame (501) fixedly connected to one end of the front end (1) of the low-NOx burner. A screw (502) is threadedly connected to the top of the fixed frame (501). A slider (508) is threadedly connected to one end of the screw (502). A connecting frame (503) is movably connected to the outer wall of the slider (508). Multiple connecting blocks (504) are fixedly connected to the inner wall of the fixed frame (501). A connecting rod (506) is rotatably connected to the inner side of each of the multiple connecting blocks (504). A baffle (505) is fixedly connected to the outer wall of each connecting rod (506). An mounting block (507) fixed to the top of the baffle (505) is rotatably connected between the connecting frames (503).

5. The nozzle structure of a low-NOx burner according to claim 1, characterized in that: A pressure gauge is fixedly connected to the top of the front end (1) of the low-NOx burner, and an ignition system connected to the burner nozzle (3) is fixedly connected to the side wall of the front end (1) of the low-NOx burner.

6. The nozzle structure of a low-NOx burner according to claim 4, characterized in that: The other end of the connecting pipe (2) is fixedly connected to an oil supply system, and the outer side of the burner nozzle (3) abuts against the connection between the front end (1) of the low-NOx burner and the fixed frame (501).

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