Ultra-low nitrogen oil-gas dual-purpose burner

Abstract

The invention relates to the technical field of combustors, in particular to an ultra-low nitrogen oil-gas dual-purpose combustor which comprises a supporting plate and a shell fixedly arranged on the supporting plate, an oil supply pipe, a gas supply pipe and a blast assembly are arranged in the shell, a first control valve is arranged at one end of the oil supply pipe, and a second control valve is arranged on the gas supply pipe; a fixed sleeve is fixedly arranged on the side face of the shell, and a rotational flow disc and an ignition assembly are fixedly arranged in the fixed sleeve. An oil outlet pipe, an oil return pipe and a plurality of air outlet pipes are fixedly arranged in the fixed sleeve; according to the combustor, jet flow kinetic energy, wind speed kinetic energy and flame kinetic energy of fuel are fully utilized, and smoke recirculation can be conducted in the combustion head in combination with special inner air duct arrangement and fuel spray gun arrangement of the combustion head, so that the energy density of the fuel and the oxygen density of combustion-supporting wind can be reduced, and the combustion efficiency is improved. Therefore, smoke is extracted from the rear portion of the boiler instead of the outside, and NOx emission can be directly smaller than 30 mg / m < 3 > * or 50 mg / m < 3 > *.

Description

Technical Field

[0001] The present application relates to the technical field of burners, and in particular to an ultra-low nitrogen oil and gas dual-purpose burner. Background Art

[0002] As the core supporting equipment of oil and gas boilers, boiler burners play a key role in converting fuel chemical energy into thermal energy. By precisely controlling the amount of air and fuel sent into the furnace, it achieves efficient and full combustion of the fuel, thereby significantly improving the combustion efficiency. This conversion process not only relies on the coordinated work of complex and sophisticated components inside the burner, but also requires these components to be able to adapt to a variety of fuel types to meet the needs of different application scenarios.

[0003] In the prior art, an advanced burner design covers multiple key parts such as the feed assembly, air supply assembly, ignition assembly and electronic control assembly. The feed assembly ensures a stable supply of fuel required for combustion. Whether it is the oil pipe, oil pump, solenoid valve, nozzle or heavy oil preheater, they all perform their duties and provide the necessary material basis for the combustion process. The air supply assembly uses a series of precision components such as the housing, fan motor, fan impeller, etc. to deliver air with a certain wind speed and air volume into the combustion chamber, providing power for the full mixing of fuel and air. The ignition assembly uses components such as the ignition transformer and ignition electrode to accurately ignite the mixture of fuel and air and start the combustion process.

[0004] However, although this type of burner is quite perfect in design and function, it still has certain limitations. Specifically, existing burners can usually only supply fuel oil or natural gas separately, and cannot be compatible with both fuels at the same time. This limitation undoubtedly limits the scope of application of the burner, making it incapable of being used in certain scenarios that require flexible switching of fuel types, and there is room for improvement. Summary of the invention

[0005] The purpose of this application is to provide an ultra-low nitrogen oil and gas dual-purpose burner to solve the problem that the above-mentioned conventional burners are not compatible with both oil and natural gas fuels.

[0006] The ultra-low nitrogen oil and gas dual-purpose burner provided in this application adopts the following technical solution: An ultra-low nitrogen dual-purpose oil and gas burner comprises a support plate and a shell fixedly mounted on the support plate, wherein an oil supply pipe, an air supply pipe and a blower assembly are arranged in the shell, a first control valve is arranged at one end of the oil supply pipe, and a second control valve is arranged on the air supply pipe; a fixed sleeve is fixedly mounted on the side of the shell, a swirl disk and an ignition assembly are fixedly mounted inside the fixed sleeve; an oil outlet pipe, an oil return pipe and a plurality of air outlet pipes are also fixedly mounted in the fixed sleeve, the ends of the oil outlet pipe and the oil return pipe close to the shell are connected to the oil supply pipe, and the ends of the plurality of air outlet pipes close to the shell are connected to the air supply pipe; an oil outlet hole connected to the other end of the oil outlet pipe and an oil return hole connected to the other end of the oil return pipe are arranged on the swirl disk, and an oil nozzle connected to both the oil outlet hole and the oil return hole is also fixedly mounted on the swirl disk.

[0007] By adopting the above technical scheme, when the burner is supplied with fuel oil for use, the external pipeline is pre-connected with the fuel supply pipe, and then the supply amount of fuel oil is controlled by the first control valve, and then the fuel oil enters the combustion chamber of the boiler through the fuel supply pipe and the oil outlet pipe; when the burner is supplied with gas for use, the external pipeline is pre-connected with the gas supply pipe, and then the supply amount of gas is controlled by the second control valve, and then the fuel oil enters the combustion chamber of the boiler through the gas supply pipe and the gas outlet pipe; the burner can use both fuel oil and gas, has a wider range of applications, and has good performance.

[0008] Optionally, a base plate is provided below the support plate, the support plate is fixed on the base plate, a plurality of rollers are provided on the bottom side surface of the base plate, and traction handles are provided on two opposite edges of the upper side surface of the base plate.

[0009] By adopting the above technical solution, when the burner needs to be moved a short distance, due to the combined arrangement of the base plate, rollers and traction handle, the staff will place the burner on the ground in advance so that the rollers are in contact with the ground, and then the staff can drag the burner on the base plate through the traction handle.

[0010] Optionally, a receiving groove for the roller to be placed is provided on the bottom side of the base plate, a fixing rod is provided above the base plate, the lower end of the fixing rod is rotatably connected to the roller, an adjustment through hole is provided on the bottom side of the receiving groove for the upper end of the fixing rod to pass through, and an adjusting member for controlling the fixing rod to slide up and down is provided on the base plate; the two traction handles are symmetrically arranged on the two side surfaces of the shell, the traction handles are rotatably connected to the upper side surface of the base plate, the traction handles can be rotatably adjusted and fixed, and when the traction handles are rotated, the adjusting member can be controlled to drive the fixing rod to slide up and down.

[0011] By adopting the above technical solution, due to the combined arrangement of the adjusting member and the fixing rod, when the traction handle is rotated and adjusted, the fixing rod can be mobilized to slide up and down through the control member, thereby controlling the roller to be placed in or out of the receiving groove. The state of the roller can be adjusted according to actual conditions, making it suitable for short-distance movement or fixation of the burner.

[0012] Optionally, a hinge seat hinged to the lower end of the traction handle is fixed on the upper side of the base plate, a plurality of locking screw holes are provided on the hinge seat, a locking through hole that can overlap with the locking screw hole is provided on the traction handle, and a locking bolt that passes through the locking through hole and is screwed into the locking screw hole is provided above the base plate.

[0013] By adopting the above technical solution, due to the coordinated arrangement of the hinge seat and the locking bolt, when the traction handle is rotated to a certain state, the locking through hole in this state is overlapped with the corresponding locking screw hole, and then the locking bolt is used to penetrate the locking screw hole and then screwed into the locking through hole; the rotation adjustment of the traction handle is realized.

[0014] Optionally, a guide slope is provided on the edge of the upper end of the fixed rod, and the adjusting member includes a first adjusting rod slidably arranged on the base plate and a second adjusting rod hinged at one end to the traction handle, and the end of the first adjusting rod close to the traction handle is hinged to the other end of the second adjusting rod; the end of the first adjusting rod away from the traction handle can be pressed downward against the fixed rod along the guide slope.

[0015] By adopting the above technical solution, when the traction handle rotates, due to the combined arrangement of the first adjustment rod and the second adjustment rod, the first adjustment rod will be driven to slide back and forth through the second adjustment rod, so that the end of the first adjustment rod away from the traction handle can be pressed downward against the fixed rod along the guide inclined surface, thereby realizing the adjustment of the up and down sliding of the fixed rod.

[0016] Optionally, a baffle is fixedly provided on the outer periphery of the fixing rod, and an adjusting groove for inserting the baffle is provided on the upper opening edge of the adjusting through hole, and a compression spring is provided in the adjusting groove, and two ends of the compression spring are respectively fixedly connected to the bottom side of the adjusting groove and the lower side of the baffle.

[0017] By adopting the above technical solution, when the first adjusting rod is misaligned with the upper end surface of the fixing rod, and the burner is hoisted using the hoisting device in this state, the possibility of the roller escaping from the accommodating groove in the natural state is reduced due to the combined arrangement of the baffle and the compression spring.

[0018] Optionally, a locking slot for the end of the first adjusting rod to slide and snap into is provided on the side surface of the supporting plate.

[0019] By adopting the above technical solution, when the burner needs to be hoisted, due to the setting of the locking slot, the traction handle is adjusted to a vertical state, the lower side surface of the first adjustment rod abuts against the upper end surface of the fixed rod, and in this state, the end of the first adjustment rod is synchronously inserted into the locking slot, thereby improving the assembly stability of the burner and the base plate during hoisting; when the burner is used, the traction handle is adjusted to a 45-degree upward inclined state, and in this state, the end of the first adjustment rod is disengaged from the locking slot.

[0020] Optionally, a lifting handle is fixedly provided on the upper side of the shell, and two protective curtains are symmetrically provided above the base plate, one side of the protective curtain is detachably connected to the traction handle, and the other side of the protective curtain is detachably connected to the lifting handle.

[0021] By adopting the above technical solution, when the burner is used, due to the installation of the protective curtain, the protective curtain can be used to shield the top of the burner, thereby reducing the problem of impurities burned in the boiler adhering to the surface of the burner shell and affecting its performance.

[0022] Optionally, a storage cavity is provided on the side of the traction handle facing the shell, and the side of the protective curtain close to the traction handle is fixed on the inner wall of the storage cavity; a limiting groove is provided on the opening edge of the storage cavity, and the traction handle is provided with a cover plate with one side hinged to the traction handle, and the other side of the cover plate is detachably connected to the inner wall of the limiting groove.

[0023] By adopting the above technical solution, when the protective curtain is not needed during transportation or short-distance movement, due to the combined arrangement of the storage cavity and the cover plate, the protective curtain can be stored in the storage cavity on the traction handle, which is convenient for packaging, transportation or short-distance movement.

[0024] Optionally, a plurality of hooks are fixedly provided on the side of the protective curtain facing the shell, and a hanging ring for the hooks to be inserted into is fixedly provided on the lifting handle.

[0025] By adopting the above technical solution, due to the combined setting of the hook and the hanging ring, when assembling one side of the protective curtain with the lifting handle, the hook on the protective curtain can be inserted into the hanging ring on the lifting handle, which also facilitates the subsequent disassembly of the protective curtain.

[0026] In summary, this application includes the following beneficial technical effects: 1. When the burner is supplied with fuel oil for use, the external pipeline is pre-connected with the fuel supply pipe, and then the fuel supply is controlled by the first control valve, and then the fuel enters the combustion chamber of the boiler through the fuel supply pipe and the fuel outlet pipe; when the burner is supplied with gas for use, the external pipeline is pre-connected with the gas supply pipe, and then the fuel supply is controlled by the second control valve, and then the fuel enters the combustion chamber of the boiler through the gas supply pipe and the gas outlet pipe; the burner can use both fuels, fuel oil and gas, has a wider range of applications, and has good performance.

[0027] 2. The burner makes full use of the jet kinetic energy, wind speed kinetic energy and flame kinetic energy of the fuel, and combines the special internal air duct arrangement and fuel spray gun arrangement of the burner head to enable flue gas recirculation in the burner head, thereby reducing the energy density of the fuel and the oxygen density of the combustion-supporting air, thereby replacing the external extraction of flue gas from the rear of the boiler, and NOx emissions can directly reach less than 30 or 50 mg / m3*. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 is a schematic diagram of a partial cross-sectional structure of Example 1 of the present application; Figure 3 It is a structural schematic diagram of the roller installation cooperation according to the second embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the installation and matching of the traction handle according to the second embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the installation and matching of the adjusting member according to the second embodiment of the present application; Figure 6 It is a partial cross-sectional structural schematic diagram of the installation and cooperation of the traction handle and the hinged seat according to the second embodiment of the present application; Figure 7 This is a schematic diagram of the structure of the installation and coordination of the roller and the fixing rod according to the second embodiment of the present application; Figure 8 This is a schematic diagram of the structure of the protective curtain installation coordination according to Example 2 of the present application; Fig. 9 yes Figure 8 A magnified schematic diagram of part A; Fig.10It is a schematic diagram of the local structure of the cover plate installation cooperation according to Example 2 of the present application.

[0030] In the figure, 1, support plate; 11, locking slot; 2, housing; 21, oil supply pipe; 211, first control valve; 22, air supply pipe; 221, second control valve; 23, air blast assembly; 24, lifting handle; 241, hanging ring; 3, fixing sleeve; 31, swirl plate; 311, oil nozzle; 32, ignition assembly; 321, igniter; 33, oil outlet pipe; 34, oil return pipe; 35, air outlet pipe; 4, base plate; 41, receiving groove; 411, adjustment through hole ; 412, adjusting groove; 42, hinged seat; 421, locking screw hole; 43, locking bolt; 5, moving assembly; 51, roller; 52, traction handle; 521, locking through hole; 522, storage chamber; 523, limiting groove; 53, fixing rod; 531, guiding slope; 532, baffle; 533, compression spring; 54, adjusting member; 541, first adjusting rod; 542, second adjusting rod; 55, cover plate; 6, protective curtain; 61, hook. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] Embodiment 1: Reference Figure 1 and Figure 2 An ultra-low nitrogen oil and gas dual-purpose burner comprises a support plate 1 and a shell 2 fixedly mounted on the support plate 1, wherein an oil supply pipe 21, an air supply pipe 22 and a blast assembly 23 are arranged in the shell 2, a first control valve 211 is arranged at one end of the oil supply pipe 21, and a second control valve 221 is arranged on the air supply pipe 22; a fixed sleeve 3 is fixedly mounted on the side of the shell 2, and a swirl disk 31 and an ignition assembly 32 are fixedly mounted inside the fixed sleeve 3; An oil outlet pipe 33, an oil return pipe 34 and six air outlet pipes 35 are also fixedly provided in the fixed sleeve 3, wherein the ends of the oil outlet pipe 33 and the oil return pipe 34 close to the shell 2 are connected to the oil supply pipe 21, and the ends of the four air outlet pipes 35 close to the shell 2 are connected to the air supply pipe 22; the swirl disk 31 is provided with an oil outlet hole (not shown in the figure) connected to the other end of the oil outlet pipe 33 and an oil return hole (not shown in the figure) connected to the other end of the oil return pipe 34; the swirl disk 31 is also fixedly provided with an oil nozzle 311 connected to both the oil outlet hole (not shown in the figure) and the oil return hole (not shown in the figure).

[0033] Reference Figure 1The air blowing assembly 23 is a conventional electrically driven fan, which will not be described in detail here. The second control valve 221 is a gas solenoid valve, which mainly controls gas fuels such as natural gas, liquefied gas and city gas. It can automatically open or close the gas channel under the action of electromagnetic energy, thereby controlling the supply and cutoff of gas; the first control valve 211 is a fuel solenoid valve, which mainly controls liquid fuels such as light oil, heavy oil and residual oil. Its working principle is similar to that of the gas solenoid valve, but it is for liquid fuels, which will not be described in detail here.

[0034] Reference Figure 2 The ignition assembly 32 includes a control system (not shown in the figure), an ignition controller (not shown in the figure), an igniter 321 and a flame detector (not shown in the figure), wherein the igniter 321 is fixedly mounted on the swirl disk 31; when the burner needs to be ignited, the control system will send an ignition signal to the ignition controller; after receiving the signal, the ignition controller controls the igniter 321 to generate electric sparks or high-temperature flames; at the same time, the fuel is sprayed out from the oil nozzle 311, and the flame detector monitors the presence of the flame. If the flame exists stably, the ignition is successful; if the flame is extinguished or unstable, the control system will send an alarm signal and take corresponding safety measures.

[0035] The implementation principle of the embodiment of the present application is: When the burner is supplied with fuel for use, the external pipeline is pre-connected with the fuel supply pipe 21, and then the supply amount of fuel is controlled by the first control valve 211, and then enters the combustion chamber of the boiler through the fuel supply pipe 21 and the oil outlet pipe 33; When the burner is supplied with gas for use, the external pipeline is pre-connected with the gas supply pipe 22 , and then the supply amount of the gas is controlled by the second control valve 221 , and then enters the combustion chamber of the boiler through the gas supply pipe 22 and the gas outlet pipe 35 .

[0036] Embodiment 2: Reference Figure 3 and Figure 4 , the embodiment of the present application is different from the embodiment 1 in that a base plate 4 is provided below the support plate 1, wherein the support plate 1 is fixedly mounted on the base plate 4, and a moving assembly 5 is provided on the side of the base plate 4, wherein the moving assembly 5 includes four rollers 51 fixedly mounted on the bottom side of the base plate 4, and a traction handle 52 is provided on the two opposite edges of the upper side of the base plate 4; When the burner needs to be moved a short distance, the burner is placed on the ground in advance so that the roller 51 contacts the ground. Then, the worker can drag the burner on the base plate 4 by pulling the handle 52 .

[0037] Reference Figure 5The bottom side of the base plate 4 is provided with a receiving groove 41 for the roller 51 to be placed therein, wherein a fixing rod 53 is provided above the base plate 4, the lower end of the fixing rod 53 is rotatably connected to the roller 51, and the bottom side of the receiving groove 41 is provided with an adjustment through hole 411 for the upper end of the fixing rod 53 to pass through, and an adjustment member 54 for controlling the fixing rod 53 to slide up and down is provided on the base plate 4; The two traction handles 52 are symmetrically arranged on the two sides of the shell 2, and the traction handles 52 are rotatably connected to the upper side of the base plate 4, and the traction handles 52 can be rotatably adjusted and fixed. When rotating, the traction handles 52 can control the adjustment member 54 to drive the fixing rod 53 to slide up and down.

[0038] Reference Figure 6 The upper side of the base plate 4 is fixedly provided with an articulated seat 42 hinged to the lower end of the traction handle 52, wherein the articulated seat 42 is provided with a plurality of locking screw holes 421, and the traction handle 52 is provided with a locking through hole 521 that can overlap with the locking screw hole 421, and the upper side of the base plate 4 is provided with a locking bolt 43 that penetrates the locking through hole 521 and is screwed into the locking screw hole 421; The locking bolt 43 is a butterfly bolt, and the staff can manually tighten or loosen the locking bolt 43 to control the rotation adjustment of the traction handle 52, so that the traction handle 52 can be rotated to a vertical state, a 45-degree upward state and fixed.

[0039] Reference Figure 5 , Figure 6 and Figure 7 The adjusting member 54 includes a first adjusting rod 541 slidably disposed on the base plate 4, and a second adjusting rod 542 hinged at one end to the traction handle 52, wherein the end of the first adjusting rod 541 close to the traction handle 52 is hinged to the other end of the second adjusting rod 542, and a guide inclined surface 531 is provided at the edge of the upper end of the fixing rod 53; a locking slot 11 is provided on the side of the support plate 1 for the end of the first adjusting rod 541 to slide into; When the traction handle 52 rotates, the first adjustment rod 541 will be driven to slide back and forth through the second adjustment rod 542, so that the end of the first adjustment rod 541 away from the traction handle 52 can be pressed downward along the guide inclined surface 531 to the fixed rod 53; two baffles 532 are relatively fixed on the outer periphery of the fixed rod 53, and an adjustment groove 412 for the baffle 532 to be placed is provided on the upper opening edge of the adjustment through hole 411, and a compression spring 533 in a compressed state is provided in the adjustment groove 412, and the two ends of the compression spring 533 are respectively fixedly connected to the bottom side of the adjustment groove 412 and the lower side of the baffle 532.

[0040] When the traction handle 52 is in a vertical state, the lower side surface of the first adjustment rod 541 abuts against the upper end surface of the fixing rod 53, the fixing rod 53 moves downward, the roller 51 protrudes out of the bottom side surface of the substrate 4, and the end of the first adjustment rod 541 is synchronously inserted into the locking slot 11; when the traction handle 52 is in an upward 45-degree inclined state, the first adjustment rod 541 is misaligned with the upper end surface of the fixing rod 53, the compression spring 533 drives the fixing rod 53 to move upward, the roller 51 is completely placed in the accommodating groove 41, and the end of the first adjustment rod 541 is disengaged from the locking slot 11.

[0041] Reference Figure 8 A lifting handle 24 is fixedly provided on the upper side of the housing 2, wherein two protective curtains 6 are symmetrically provided above the base plate 4, wherein the protective curtains 6 are flexible graphite coils, which have excellent heat resistance and cold resistance and can maintain the stability of physical properties under extreme temperatures; one side of the protective curtain 6 is detachably connected to the traction handle 52, and the other side is detachably connected to the lifting handle 24; When the burner is in use, the protective curtain 6 can be used to shield the top of the burner, thereby reducing the problem of impurities from boiler combustion adhering to the surface of the burner shell and affecting its performance; when the burner needs to be hoisted, the hoisting equipment can quickly hoist it through the lifting handle 24.

[0042] Reference Figure 8 , Fig. 9 and Fig.10 A storage cavity 522 is provided on the side of the traction handle 52 facing the housing 2, wherein the side of the protective curtain 6 close to the traction handle 52 is fixedly arranged on the inner wall of the storage cavity 522; and a limited position sink groove 523 is provided on the opening edge of the storage cavity 522, and a cover plate 55 is provided on the traction handle 52, one side of which is hinged to the traction handle 52, and the other side of the cover plate 55 is detachably connected to the inner wall of the limited position sink groove 523 by a butterfly screw; Two hooks 61 are fixedly provided on the side of the protective curtain 6 facing the shell 2, and a hanging ring 241 for the hooks 61 to be inserted into is fixedly provided on the lifting handle 24, so as to facilitate the disassembly and assembly of the protective curtain 6 and the lifting handle 24; when the protective curtain 6 is no longer needed during transportation or short-distance movement, the protective curtain 6 can be stored in the storage cavity 522 on the traction handle 52, so as to facilitate packaging and transportation or short-distance movement.

[0043] The implementation principle of the embodiment of the present application is: When the burner needs to be moved a short distance, the traction handle 52 is adjusted to a vertical state, the lower side of the first adjustment rod 541 abuts against the upper end surface of the fixing rod 53, the fixing rod 53 moves downward, the roller 51 protrudes from the bottom side of the base plate 4, and the end of the first adjustment rod 541 is synchronously inserted into the locking slot 11; this state improves the connection stability of the support plate 1 and the base plate 4, facilitates the hoisting of the burner by the hoisting equipment, and also enhances the stability of the burner when moving a short distance; When the burner is used, the traction handle 52 is adjusted to a 45-degree upward position, the first adjustment rod 541 is misaligned with the upper end surface of the fixing rod 53, the compression spring 533 drives the fixing rod 53 to move upward, the roller 51 is completely placed in the accommodating groove 41, and the end of the first adjustment rod 541 is disengaged from the locking slot 11; in addition, the protective curtain 6 can be taken out from the storage cavity 522, and the hook 61 on the protective curtain 6 can be inserted into the hanging ring 241 on the lifting handle 24 to protect the top of the burner.

[0044] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An ultra-low nitrogen oil and gas dual-purpose burner, characterized in that: The invention comprises a support plate (1) and a shell (2) fixedly mounted on the support plate (1); an oil supply pipe (21), an air supply pipe (22) and an air blowing assembly (23) are arranged in the shell (2); a first control valve (211) is arranged at one end of the oil supply pipe (21), and a second control valve (221) is arranged on the air supply pipe (22); a fixed sleeve (3) is fixedly mounted on the side of the shell (2), and a swirl disk (31) and an ignition assembly (32) are fixedly mounted inside the fixed sleeve (3); An oil outlet pipe (33), an oil return pipe (34) and a plurality of air outlet pipes (35) are also fixedly disposed in the fixed sleeve (3); the ends of the oil outlet pipe (33) and the oil return pipe (34) close to the housing (2) are both connected to the oil supply pipe (21); the ends of the plurality of air outlet pipes (35) close to the housing (2) are connected to the air supply pipe (22); an oil outlet hole connected to the other end of the oil outlet pipe (33) and an oil return hole connected to the other end of the oil return pipe (34) are formed on the swirl disk (31); and an oil nozzle (311) connected to both the oil outlet hole and the oil return hole is also fixedly disposed on the swirl disk (31).

2. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 1 is characterized in that: A base plate (4) is provided below the support plate (1), the support plate (1) is fixed on the base plate (4), a plurality of rollers (51) are provided on the bottom side surface of the base plate (4), and traction handles (52) are provided on two opposite edges of the upper side surface of the base plate (4).

3. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 2 is characterized in that: The bottom side of the base plate (4) is provided with a receiving groove (41) for the roller (51) to be placed therein; a fixing rod (53) is provided above the base plate (4); the lower end of the fixing rod (53) is rotatably connected to the roller (51); the bottom side of the receiving groove (41) is provided with an adjustment through hole (411) for the upper end of the fixing rod (53) to pass through; and an adjustment member (54) for controlling the fixing rod (53) to slide up and down is provided on the base plate (4); The two traction handles (52) are symmetrically arranged on two side surfaces of the shell (2); the traction handles (52) are rotatably connected to the upper side surface of the base plate (4); the traction handles (52) can be rotatably adjusted and fixed; when the traction handles (52) are rotated, the adjustment member (54) can be controlled to drive the fixing rod (53) to slide up and down.

4. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 3 is characterized in that: The upper side of the base plate (4) is fixedly provided with a hinge seat (42) hinged to the lower end of the traction handle (52); the hinge seat (42) is provided with a plurality of locking screw holes (421); the traction handle (52) is provided with a locking through hole (521) that can overlap with the locking screw hole (421); and a locking bolt (43) is provided above the base plate (4) and passes through the locking through hole (521) and is screwed into the locking screw hole (421).

5. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 3 is characterized in that: The upper end edge of the fixing rod (53) is provided with a guiding inclined surface (531); the adjusting member (54) comprises a first adjusting rod (541) slidably arranged on the base plate (4) and a second adjusting rod (542) having one end hinged to the traction handle (52); the end of the first adjusting rod (541) close to the traction handle (52) is hinged to the other end of the second adjusting rod (542); the end of the first adjusting rod (541) away from the traction handle (52) can press the fixing rod (53) downward along the guiding inclined surface (531).

6. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 5 is characterized in that: A baffle (532) is fixedly arranged on the outer periphery of the fixing rod (53); an adjusting groove (412) for the baffle (532) to be placed is provided on the upper opening edge of the adjusting through hole (411); a compression spring (533) is arranged in the adjusting groove (412); two ends of the compression spring (533) are respectively fixedly connected to the bottom side of the adjusting groove (412) and the lower side of the baffle (532).

7. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 5, characterized in that: A locking slot (11) is provided on the side surface of the support plate (1) for the end of the first adjustment rod (541) to slide and snap into.

8. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 3 is characterized in that: A lifting handle (24) is fixedly provided on the upper side of the shell (2), and two protective curtains (6) are symmetrically provided above the base plate (4), one side of the protective curtain (6) is detachably connected to the traction handle (52), and the other side is detachably connected to the lifting handle (24).

9. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 8, characterized in that: A storage cavity (522) is provided on the side of the traction handle (52) facing the housing (2), and a side of the protective curtain (6) close to the traction handle (52) is fixed on the inner wall of the storage cavity (522); The opening edge of the storage cavity (522) is provided with a limiting recess (523); the traction handle (52) is provided with a cover plate (55) whose one side is hinged to the traction handle (52); the other side of the cover plate (55) is detachably connected to the inner wall of the limiting recess (523).

10. The ultra-low nitrogen oil and gas dual-purpose burner according to claim 8, characterized in that: A plurality of hooks (61) are fixedly provided on the side of the protective curtain (6) facing the housing (2), and a hanging ring (241) for the hooks (61) to be clamped is fixedly provided on the lifting handle (24).

Images