Low-nitrogen combustor suitable for fuel gas clamping liquid

Abstract

The low-nitrogen burner mainly comprises a low-nitrogen burner main body, an overhauling operation mechanism and a passing liquid discharging mechanism, the burner main body comprises an outer-layer gas gun, a gas-liquid flow dividing combined spray gun and a barrel, the gas-liquid flow dividing combined spray gun is provided with a liquid collecting groove, and the barrel is provided with a liquid outlet; the maintenance operation mechanism achieves lifting maintenance of burner components through a lifting motion module, worm and gear transmission and a locking component are adopted to ensure stability and quick disassembly, and the liquid passing discharging mechanism automatically opens a liquid discharging pipe to discharge liquid when liquid in a liquid collecting tank is excessive through the linkage design of a floating ball, a lever arm and a blocking spring. The burner is automatically closed after the liquid level is lowered, nitrogen oxides are prevented from exceeding the standard due to the fact that gas carries liquid for the second time, the burner has the functions of convenient maintenance and automatic liquid drainage, and the maintenance efficiency and the environmental protection performance are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of petrochemical heating furnace burners, in particular to a low-nitrogen burner suitable for fuel gas with liquid inclusion. Background Art

[0002] See Figure 1-3 A low-nitrogen burner in the prior art is mainly composed of a fire basin brick 100, an outer gas gun 101, a cylinder 103, a gas-liquid split combination spray gun 102 and other components. The bottom of the cylinder 103 is fixedly connected to a mounting ring 108, and the mounting ring 108 is fixedly connected to a bottom end plate 104 by bolts. The outer gas gun 101, the gas-liquid split combination spray gun 102 and other components are fixedly connected to the bottom end plate 104. Firstly, because the mounting ring 108 is connected to the bottom end plate 104 by bolts, when it is necessary to inspect and replace the components (the outer gas gun, the gas-liquid split combination spray gun, etc.), the bolts need to be unscrewed and then the bottom end plate needs to be removed. Moreover, because the bottom end plate is heavy in combination with the components, it needs to be supported by a support platform so that it can be gradually lowered. When the inspection is completed and the installation is required, the other way around is required. Such a structure makes the inspection process cumbersome, time-consuming, and labor-intensive, and is inconvenient for inspection and operation. Secondly, when gas-liquid separation is performed through the gas-liquid diversion combination spray gun, the separated liquid will enter the liquid collecting tank 107 of the bottom flange 106. When the gas carries too much liquid, resulting in a large amount of liquid in the liquid collecting tank 107, and the central liquid guide spray gun 105 cannot quickly discharge the liquid, the stored liquid is easily carried by the gas again, causing secondary carryover of the liquid, affecting the low-nitrogen combustion characteristics of the burner. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a low-nitrogen burner that is easy to repair and replace and avoids secondary liquid carryover.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a low-nitrogen burner suitable for fuel gas with liquid, including a low-nitrogen burner body, a maintenance operation mechanism and an over-liquid discharge mechanism, the low-nitrogen burner body including an outer gas gun, a gas-liquid diversion combination spray gun, and a barrel, the barrel being fixedly connected to the furnace bottom plate of the heating furnace, the bottom of the barrel being provided with a bottom end plate, the outer gas gun and the gas-liquid diversion combination spray gun being fixedly connected to the bottom end plate, the outer gas gun and the gas-liquid diversion combination spray gun being located inside the barrel, the gas-liquid diversion combination spray gun including a central liquid guide spray gun and a flange, the flange being provided with a liquid collecting tank, the central liquid guide spray gun being connected to the liquid collecting tank; The bottom end plate is arranged in the maintenance operation mechanism, and the maintenance operation mechanism includes a mechanism frame, a lifting motion module, a locking component, and a power input component. The lifting motion module and the power input component are provided on the mechanism frame, and the power input component is connected to the lifting motion module by power. The lifting motion module includes a motion platform, and the power input component can provide power to the lifting motion module so that the motion platform performs lifting and linear motion. The bottom end plate is slidably connected to the motion platform, and the locking component is provided on the motion platform to cooperate with the bottom end plate. The bottom end plate can be locked to the motion platform by the locking component; The excess liquid discharge mechanism is provided in the liquid collecting tank. When excessive liquid is collected in the liquid collecting tank, the excess liquid discharge mechanism can automatically discharge the liquid.

[0005] In the above technical solution, the specific structure of the lifting motion module is: The lifting motion module also includes a screw and a guide column. The guide column is fixedly connected to the mechanism frame, the motion platform is slidably connected to the guide column, the motion platform is threadedly connected to the screw, and the screw is dynamically connected to the power input component.

[0006] In the above technical solution, the power input component adopts the following structure: The power input component includes an operating turntable, a worm, a worm wheel and a power input shaft. The power input shaft is fixedly connected to the screw, the worm wheel is fixedly connected to the power input shaft, the worm is rotatably connected to the mechanism frame, the worm is meshed with the worm wheel, the operating turntable is rotatably connected to the mechanism frame, and the operating turntable is dynamically connected to the worm.

[0007] In the above technical solution, the structure of the locking component is: The locking component includes a top column, a locking spring, a sliding column, a locking column and a pushing column, and the moving platform is fixedly connected to the mounting bracket, the mounting bracket is fixedly connected to the sliding column, the sliding column is slidably connected to the locking platform, and the sliding column is sleeved with the locking spring, one end of the locking spring is fixedly connected to the locking platform, and the other end is fixedly connected to the mounting bracket, and the locking column is fixedly connected to the locking platform, and the bottom end plate is provided with a locking hole that cooperates with the locking column, and the locking platform is fixedly connected to the pushing column, and the pushing column passes through the moving platform; The mechanism frame is fixedly connected with the top column in cooperation with the pushing column. When the moving platform descends to the bottom, the top column can push the pushing column so that the locking column is disengaged from the locking hole.

[0008] In the above technical solution, the sports platform is fixedly connected with a sliding rail, the bottom end plate is provided with a sliding groove, and the sliding rail is slidably connected in the sliding groove.

[0009] In the above technical solution, a stabilizing column is fixedly connected to the mechanism frame, a sliding ear is fixedly connected to the motion platform, the sliding ear is provided with a sliding hole, and the stabilizing column passes through the sliding hole.

[0010] In the above technical solution, the specific structure of the excess liquid discharge mechanism is as follows: The excess liquid discharge mechanism includes a drain pipe, a plug core, a lever arm, a traction arm A, a traction arm B, and a float. A guide rod is fixedly connected to the liquid collecting tank, the float is slidably connected to the guide rod, and a bottom limit platform is fixedly connected to the guide rod. When the liquid in the liquid collecting tank is not excessive, the float contacts the bottom limit platform. The bottom end plate is fixedly connected to the drain pipe, and the plugging core is arranged in the drain pipe; The lever arm is rotatably connected in the liquid collecting tank, and a sliding bar groove A is provided at one end of the lever arm, and a sliding bar groove B is provided at the other end. A motion shaft A is slidably connected in the sliding bar groove A, and a motion shaft B is slidably connected in the sliding bar groove B. The motion shaft A is connected to the plugging core through the traction arm A, and the motion shaft B is connected to the float through the traction arm B. When the float floats up and away from the bottom limit platform, the traction arm B can push the lever arm to rotate, so that the traction arm A pushes the plugging core, and the plugging core opens the drain pipe.

[0011] In the above technical solution, the drainage pipe includes a small diameter portion and a large diameter portion, the small diameter portion is fixedly connected to the bottom end plate, the large diameter portion is located outside, and a transition surface is provided between the small diameter portion and the large diameter portion; When the above drainage pipe structure is adopted, the structure of the plugging core is as follows: The blocking core includes a blocking spring, a blocking platform, a base and a connecting arm. The base is provided inside the large diameter part, the blocking platform is fixedly connected to the base, the blocking platform can close the small diameter part, the blocking spring is sleeved on the outside of the blocking platform, one end of the blocking spring is fixedly connected to the transition surface, and the other end is fixedly connected to the base. A drainage port is provided between the base and the inner wall of the large diameter part, the connecting arm is fixedly connected to the blocking platform, and the connecting arm passes through the inner hole of the small diameter part and is fixedly connected to the traction arm A.

[0012] In the above technical solution, the lever arm is installed in such a manner that a lever shaft is fixedly connected to the lever arm, a lever frame is fixedly connected to the liquid collecting tank, the lever shaft is rotatably connected to the lever frame, and further, the lever shaft is close to the sliding bar groove A.

[0013] In the above technical solution, both the motion axis B and the motion axis A are fixedly connected with a limit plate.

[0014] Beneficial effects of the present invention: 1. Power can be input into the lifting motion module through the power input component, causing the motion platform to move up and down. When the motion platform descends, the bottom end plate and the components on it (outer gas gun, gas-liquid split combination spray gun) can be driven to descend synchronously, thereby allowing the components to move out of the cylinder, making it easier to perform maintenance; 2. A sliding installation is adopted between the bottom end plate and the moving platform, and the bottom end plate can be locked by a locking component, thereby ensuring that the components on the bottom end plate (outer gas gun, gas-liquid split combination spray gun) are stably located inside the cylinder, ensuring the normal operation of the burner. When inspecting the components, after the moving platform is lowered to the bottom, the push column can be pushed by the top column, so that the locking spring is compressed, thereby causing the locking column to disengage from the locking hole on the bottom end plate, thereby releasing the limit on the bottom end plate, and the bottom end plate and the components on it can be slid and removed for replacement. This structure can reduce the operation of the locking component and speed up the inspection efficiency; 3. An excess liquid discharge mechanism is also provided in the liquid collecting tank. After the liquid in the gas is separated by the gas-liquid diversion combined spray gun, the liquid can enter the liquid collecting tank on the flange. When there is too much liquid in the liquid collecting tank, the float floats up and away from the bottom limit platform, and the traction arm B can push the lever arm to rotate, so that the traction arm A pushes the plugging core, and the plugging core opens the drain pipe, so that the liquid in the liquid collecting tank can be discharged. This can avoid the gas carrying liquid for the second time due to excessive liquid, which causes excessive production of nitrogen oxides during combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of a low nitrogen burner in the prior art; Figure 2 for Figure 1 Schematic diagram of the detailed structure of part a; Figure 3 for Figure 1 Schematic diagram of the detailed structure of part b; Figure 4 It is a schematic diagram of the structure of the present invention; Figure 5 It is a structural schematic diagram of another state of the present invention; Figure 6It is a structural diagram of the maintenance operating mechanism of the present invention; Figure 7 for Figure 6 Schematic diagram of the detailed structure of part c in the middle; Figure 8 Schematic diagram of the structure of the excess liquid discharge mechanism in the present invention; Figure 9 Schematic diagram of another state structure of the excess liquid discharge mechanism of the present invention; Figure 10 for Figure 8 Schematic diagram of the detailed structure of part d in the middle; Figure 11 for Figure 9 Schematic diagram of the detailed structure of the middle e part.

[0016] In the figure: 101 outer gas gun, 102 gas-liquid split flow combination spray gun, 103 cylinder, 104 bottom end plate, 105 central liquid guide spray gun, 106 flange, 107 liquid collecting tank, 108 mounting ring; 201 mechanism frame, 202 lifting motion module, 2021 lead screw, 2022 motion platform, 2023 guide column, 203 locking component, 2031 top column, 2032 locking spring, 2033 sliding column, 2034 locking column, 2035 pushing column, 2036 locking platform, 204 power input component, 2041 operating turntable, 2042 worm, 2043 worm gear, 2044 power input shaft, 205 sliding rail, 206 sliding ear, 207 stabilizing column; 301 drainage pipe, 302 lever arm, 303 traction arm A, 304 traction arm B, 305 float, 306 bottom limit platform, 307 small diameter part, 308 large diameter part, 309 transition surface, 310 blocking spring, 311 blocking platform, 312 bottom platform, 313 connecting arm, 314 drainage port, 315 lever shaft, 316 sliding bar groove A, 317 sliding bar groove B, 318 motion axis A, 319 motion axis B, 320 limit plate, 321 guide rod. DETAILED DESCRIPTION

[0017] 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.

[0018] Example 1 See also Figure 1-Figure 7 , a low nitrogen burner suitable for fuel gas with liquid, including a low nitrogen burner body, an inspection and operation mechanism and an over-liquid discharge mechanism. First, please refer to Figure 1-Figure 3The main body of the low-nitrogen burner in the prior art includes an outer gas gun 101, a gas-liquid diversion combination spray gun 102, and a cylinder 103, wherein the cylinder 103 is fixedly connected to the bottom plate of the heating furnace, and a bottom end plate 104 is provided at the bottom of the cylinder 103, and the outer gas gun 101 and the gas-liquid diversion combination spray gun 102 are fixedly connected to the bottom end plate 104. The outer gas gun 101 and the gas-liquid diversion combination spray gun 102 are located inside the cylinder 103, and the gas-liquid diversion combination spray gun 102 includes a central liquid guide spray gun 105 and a flange 106. A liquid collecting tank 107 is provided on the flange 106, and the central liquid guide spray gun 105 is connected to the liquid collecting tank 107; See also Figure 4-Figure 7 In this embodiment, the bottom end plate 104 is provided in the maintenance operation mechanism. Specifically, the maintenance operation mechanism includes a mechanism frame 201, a lifting motion module 202, a locking component 203, and a power input component 204. That is, a lifting motion module 202 and a power input component 204 are provided on the mechanism frame 201. The lifting motion module 202 includes a screw 2021, a motion platform 2022, and a guide column 2023. The guide column 2023 is fixedly connected to the mechanism frame 201, and the motion platform 2022 is slidably connected to the guide column 2023. The motion platform 2022 is threadedly connected to the screw 2021, and the screw 2021 is dynamically connected to the power input component 204. The power input component 204 includes an operating turntable 2041, a worm 2042, a worm wheel 2043 and a power input shaft 2044, that is, the power input shaft 2044 is fixedly connected to the lead screw 2021, the worm wheel 2043 is fixedly connected to the power input shaft 2044, the worm 2042 is rotatably connected to the mechanism frame 201, the worm 2042 and the worm wheel 2043 are meshed and connected, the operating turntable 2041 is rotatably connected to the mechanism frame 201, and the operating turntable 2041 and the worm 2042 are power-connected. When the operating turntable 2041 is rotated, the worm 2042 is rotated, and then the worm 2042 drives the worm wheel 2043 to rotate, and finally the lead screw 2021 is rotated. When the lead screw 2021 rotates, the motion platform 222 can perform a linear movement of lifting and lowering on the guide column 223; In addition, the moving platform 2022 is also slidably connected to the bottom end plate 104, that is, the moving platform 2022 is fixedly connected to the sliding rail 205, the bottom end plate 104 is provided with a sliding groove, and the sliding rail 205 is slidably connected in the sliding groove. In order to ensure the stability of the bottom end plate 104, the moving platform 2022 is matched with the bottom end plate 104 and provided with a locking component 203. The bottom end plate 104 can be locked on the moving platform 2022 through the locking component 203. Specifically, the locking component 203 includes a top column 2031, a locking spring 2032, a sliding column 2033, a locking column 2034 and a pushing column 2035, a mounting frame is fixedly connected to the moving platform 2022, a sliding column 2033 is fixedly connected to the mounting frame, a locking platform 2036 is slidably connected to the sliding column 2033, a locking spring 2032 is sleeved on the sliding column 2033, one end of the locking spring 2032 is fixedly connected to the locking platform 2036, and the other end is fixedly connected to the mounting frame, a locking column 2034 is fixedly connected to the locking platform 2036, a locking hole is provided on the bottom end plate 104 to match the locking column 2034, a pushing column 2035 is fixedly connected to the locking platform 2036, and the pushing column 2035 passes through the moving platform 2022; The mechanism frame 201 is fixedly connected to a top post 2031 in cooperation with a push post 2035. When the moving platform 2022 descends to the bottom, the top post 2031 can push the push post 2035, causing the locking post 2034 to disengage from the locking hole, thereby releasing the limit on the bottom end plate 104. Furthermore, a stabilizing column 207 is fixedly connected to the mechanism frame 201, and a sliding ear 206 is fixedly connected to the motion platform 2022. The sliding ear 206 is provided with a sliding hole, and the stabilizing column 207 passes through the sliding hole, thereby improving the lifting stability of the motion platform 2022; When the burner is optimized using the above structure, first, power can be input into the lifting module 202 through the power input component 204, causing the moving platform 2022 to move up and down. When the moving platform 2022 descends, it can drive the bottom end plate 104 and the components thereon (the outer gas gun 101 and the gas-liquid split combination spray gun 102) to descend synchronously, thereby moving the components out of the cylinder 103, thereby facilitating their maintenance. In addition, a sliding installation is adopted between the bottom end plate 104 and the moving platform 2022, and the bottom end plate 104 can be locked by the locking component 203, thereby ensuring that the components on the bottom end plate 104 (the outer gas gun 101 and the gas-liquid split combination spray gun 102) are stably located inside the cylinder 103, ensuring the normal operation of the burner; When inspecting the components, after the moving platform 2022 drops to the bottom, the push column 2035 can be pushed by the top column 2031, so that the locking spring 2032 is compressed, so that the locking column 2034 is disengaged from the locking hole on the bottom end plate 104, thereby releasing the limit on the bottom end plate 104, and the bottom end plate 104 and the components thereon can be slid and removed, so as to be replaced. Such a structure can reduce the operation of the locking component 203 and speed up the inspection efficiency.

[0019] Example 2 See also Figure 1 、 Figure 2 as well as Figures 8-11 A low nitrogen burner suitable for fuel gas with liquid inclusion is further optimized based on Example 1: In this embodiment, an excess liquid discharge mechanism is provided in the liquid collecting tank 107. When an excess amount of liquid is collected in the liquid collecting tank 107, the excess liquid discharge mechanism automatically discharges the liquid. Specifically, the excess liquid discharge mechanism includes a discharge pipe 301, a plugging core, a lever arm 302, a traction arm A 303, a traction arm B 304, and a float 305. A guide rod 321 is fixedly connected to the liquid collecting tank 107, and the float 305 is slidably connected to the guide rod 321. The guide rod 321 is also fixedly connected to a bottom limit platform 306. When the liquid in the liquid collecting tank 107 is not excessive, the float 305 contacts the bottom limit platform 306. When the liquid exceeds the amount, the float 305 rises on the guide rod 321 under the action of buoyancy. Furthermore, a drain pipe 301 is fixedly connected to the bottom end plate 104. The drain pipe 301 includes a small diameter portion 307 and a large diameter portion 308. The small diameter portion 307 is fixedly connected to the bottom end plate 104, and the large diameter portion 308 is located outside. A transition surface 309 is provided between the small diameter portion 307 and the large diameter portion 308. In addition, a plugging core is provided in the discharge pipe 301, and the plugging core includes a plugging spring 310, a plugging platform 311, a bottom platform 312 and a connecting arm 313, that is, a bottom platform 312 is provided in the large diameter portion 308, a plugging platform 311 is fixedly connected to the bottom platform 312, and the plugging platform 311 can close the small diameter portion 307, and a plugging spring 310 is sleeved on the outside of the plugging platform 311, one end of the plugging spring 310 is fixedly connected to the transition surface 309, and the other end is fixedly connected to the bottom platform 313. 12, a drainage port 314 is provided between the bottom platform 312 and the inner wall of the large diameter portion 308, and a connecting arm 313 is fixedly connected to the blocking platform 311. Under the action of the elastic force of the blocking spring 310, the blocking platform 311 can be located inside the small diameter portion 307, thereby blocking the drainage pipe 301. When downward pressure is applied to the connecting arm 313, the blocking spring 310 will stretch, and the blocking platform 311 will then be disengaged from the small diameter portion 307, allowing the drainage pipe 301 to open; Furthermore, a lever arm 302 is rotatably connected in the liquid collecting tank 107, that is, a lever shaft 315 is fixedly connected to the lever arm 302, a lever frame is fixedly connected in the liquid collecting tank 107, and the lever shaft 315 is rotatably connected to the lever frame; One end of the lever arm 302 is provided with a sliding groove A316, and the other end is provided with a sliding groove B317. A moving shaft A318 is slidably connected in the sliding groove A316, and a moving shaft B319 is slidably connected in the sliding groove B317. The moving shaft A318 and the connecting arm 313 are connected via the traction arm A303, and the moving shaft B319 and the float 305 are connected via the traction arm B304. In this way, when the float 305 floats away from the bottom limit platform 306, the traction arm B304 can push the lever arm 302 to rotate, so that the traction arm A303 pushes the connecting arm 313, thereby opening the drain pipe 301. Furthermore, the lever shaft 315 is close to the sliding groove A316. In this way, by utilizing the lever principle, when the float 305 has a smaller buoyancy, the blocking spring 310 can also be stretched. Optimally, a limit plate 320 is fixedly connected to the motion shaft B319 and the motion shaft A318, and the limit plate 320 limits the motion shaft B319 and the motion shaft A318 to prevent them from being separated; In summary, after the liquid in the gas is separated by the gas-liquid diversion combination spray gun 102, the liquid can enter the liquid collecting tank 107 on the flange 106. When there is too much liquid in the liquid collecting tank 107 due to excessive liquid, the float 305 can float up and away from the bottom limit platform 306. At this time, the traction arm B304 can push the lever arm 302 to rotate, so that the traction arm A303 pushes the connecting arm 313, so that the blocking spring 310 is stretched, and the blocking platform 311 is disengaged from the small diameter part 307, and the drain pipe 301 is opened. In this way, the liquid in the liquid collecting tank 107 can be discharged, thereby avoiding the gas from carrying liquid again due to excessive liquid, resulting in excessive production of nitrogen oxides during combustion. When the liquid discharge is reduced to a level that is not excessive, the float 305 will drop. At this time, under the elastic force of the blocking spring 310, the blocking platform 311 can block the drain pipe 301 again.

[0020] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0021] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A low-nitrogen burner suitable for fuel gas with liquid, comprising a low-nitrogen burner body, an inspection and operation mechanism, and an over-liquid discharge mechanism, wherein the low-nitrogen burner body comprises an outer gas gun (101), a gas-liquid diversion combination spray gun (102), and a barrel (103), wherein the barrel (103) is fixedly connected to the bottom plate of a heating furnace, a bottom end plate (104) is provided at the bottom of the barrel (103), and the outer gas gun (101) and the gas-liquid diversion combination spray gun (102) are fixedly connected to the bottom end plate (104), the outer gas gun (101) and the gas-liquid diversion combination spray gun (102) are located inside the barrel (103), the gas-liquid diversion combination spray gun (102) comprises a central liquid guide spray gun (105) and a flange (106), a liquid collecting tank (107) is provided on the flange (106), and the central liquid guide spray gun (105) is connected to the liquid collecting tank (107), characterized in that: The bottom end plate (104) is provided in the maintenance operation mechanism, and the maintenance operation mechanism comprises a mechanism frame (201), a lifting motion module (202), a locking component (203), and a power input component (204). The lifting motion module (202) and the power input component (204) are provided on the mechanism frame (201), and the power input component (204) is connected to the lifting motion module (202) by power. The lifting motion module (202) comprises a motion platform ( 2022), the power input component (204) can provide power to the lifting motion module (202), so that the motion platform (2022) performs lifting linear motion, the bottom end plate (104) is slidably connected to the motion platform (2022), and the locking component (203) is provided on the motion platform (2022) to cooperate with the bottom end plate (104), and the bottom end plate (104) can be locked on the motion platform (2022) through the locking component (203); The excess liquid discharge mechanism is provided in the liquid collecting tank (107). When excessive liquid is collected in the liquid collecting tank (107), the excess liquid discharge mechanism can automatically discharge the liquid.

2. A low nitrogen burner suitable for fuel gas with liquid according to claim 1, characterized in that: The lifting motion module (202) further comprises a lead screw (2021) and a guide column (2023); the guide column (2023) is fixedly connected to the mechanism frame (201); the motion platform (2022) is slidably connected to the guide column (2023); the motion platform (2022) is threadedly connected to the lead screw (2021); and the lead screw (2021) is in power connection with the power input component (204).

3. A low nitrogen burner suitable for fuel gas with liquid according to claim 2, characterized in that: The power input component (204) comprises an operating turntable (2041), a worm (2042), a worm wheel (2043) and a power input shaft (2044); the power input shaft (2044) is fixedly connected to the lead screw (2021); the worm wheel (2043) is fixedly connected to the power input shaft (2044); the worm (2042) is rotatably connected to the mechanism frame (201); the worm (2042) and the worm wheel (2043) are meshedly connected; the operating turntable (2041) is rotatably connected to the mechanism frame (201); and the operating turntable (2041) and the worm (2042) are power-connected.

4. A low nitrogen burner suitable for fuel gas with liquid according to claim 1, characterized in that: The locking component (203) comprises a top column (2031), a locking spring (2032), a sliding column (2033), a locking column (2034) and a pushing column (2035); the moving platform (2022) is fixedly connected to a mounting frame, the mounting frame is fixedly connected to the sliding column (2033), the sliding column (2033) is slidably connected to a locking platform (2036), the locking spring (2032) is sleeved on the sliding column (2033), and the locking column (2034) is sleeved on the sliding column (2033). ), one end of the locking spring (2032) is fixedly connected to the locking platform (2036), and the other end is fixedly connected to the mounting frame, the locking platform (2036) is fixedly connected to the locking column (2034), the bottom end plate (104) is provided with a locking hole to cooperate with the locking column (2034), the locking platform (2036) is fixedly connected to the pushing column (2035), and the pushing column (2035) passes through the moving platform (2022); The mechanism frame (201) is fixedly connected with the top column (2031) in cooperation with the pushing column (2035); when the motion platform (2022) descends to the bottom, the top column (2031) can push the pushing column (2035), so that the locking column (2034) is disengaged from the locking hole.

5. The low nitrogen burner suitable for fuel gas with liquid according to claim 1, characterized in that: A sliding rail (205) is fixedly connected to the motion platform (2022), a sliding groove is provided on the bottom end plate (104), and the sliding rail (205) is slidably connected in the sliding groove.

6. The low nitrogen burner suitable for fuel gas with liquid according to claim 1, characterized in that: A stabilizing column (207) is fixedly connected to the mechanism frame (201), a sliding ear (206) is fixedly connected to the motion platform (2022), and a sliding hole is provided on the sliding ear (206), through which the stabilizing column (207) passes.

7. The low nitrogen burner suitable for fuel gas with liquid according to claim 1, characterized in that: The excess liquid discharge mechanism comprises a liquid discharge pipe (301), a plug core, a lever arm (302), a traction arm A (303), a traction arm B (304), and a float (305); a guide rod (321) is fixedly connected in the liquid collecting tank (107); the float (305) is slidably connected to the guide rod (321); a bottom limit platform (306) is fixedly connected to the guide rod (321); when the liquid in the liquid collecting tank (107) is not excessive, the float (305) contacts the bottom limit platform (306); The bottom end plate (104) is fixedly connected to the drainage pipe (301), and the plugging core is provided in the drainage pipe (301); The lever arm (302) is rotatably connected in the liquid collecting tank (107), and one end of the lever arm (302) is provided with a sliding bar groove A (316), and the other end is provided with a sliding bar groove B (317). A motion shaft A (318) is slidably connected in the sliding bar groove A (316), and a motion shaft B (319) is slidably connected in the sliding bar groove B (317). The motion shaft A (318) is connected to the plugging core through the traction arm A (303), and the motion shaft B (319) is connected to the float (305) through the traction arm B (304). When the float (305) floats up and away from the bottom limit platform (306), the traction arm B (304) can push the lever arm (302) to rotate, so that the traction arm A (303) pushes the plugging core, and the plugging core opens the drainage pipe (301).

8. The low nitrogen burner suitable for fuel gas with liquid according to claim 7, characterized in that: The drainage pipe (301) comprises a small diameter portion (307) and a large diameter portion (308), wherein the small diameter portion (307) is fixedly connected to the bottom end plate (104), and the large diameter portion (308) is located outside, and a transition surface (309) is provided between the diameters of the small diameter portion (307) and the large diameter portion (308); The plugging core includes a plugging spring (310), a plugging platform (311), a base (312) and a connecting arm (313). The base (312) is provided in the large diameter portion (308). The plugging platform (311) is fixedly connected to the base (312). The plugging platform (311) can close the small diameter portion (307). The plugging spring (310) is sleeved on the outside of the plugging platform (311). One end of the plugging spring (310) is fixedly connected to the transition surface (309), and the other end is fixedly connected to the base (312). A drainage port (314) is provided between the base (312) and the inner wall of the large diameter portion (308). The connecting arm (313) is fixedly connected to the plugging platform (311). The connecting arm (313) passes through the inner hole of the small diameter portion (307) and is fixedly connected to the traction arm A (303).

9. The low nitrogen burner suitable for fuel gas with liquid according to claim 8, characterized in that: A lever shaft (315) is fixedly connected to the lever arm (302), a lever frame is fixedly connected inside the liquid collecting tank (107), the lever shaft (315) is rotatably connected to the lever frame, and the lever shaft (315) is close to the sliding strip groove A (316).

10. A low nitrogen burner suitable for fuel gas with liquid according to claim 9, characterized in that: The motion axis B (319) and the motion axis A (318) are both fixedly connected to a limiting disk (320).

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