Combustor with high combustion efficiency

Abstract

The invention relates to the technical field of combustors, in particular to a high-combustion-efficiency combustor which comprises a combustor body, a connecting sleeve is arranged at the mounting end of the combustor body, and a mounting plate connected with combustion equipment is welded to the end, away from the combustor body, of the connecting sleeve. An oil feeder connected with external oil supply equipment is arranged on one side of the surface of the burner body, and a fan is installed on the side, away from the oil feeder, of the surface of the burner body. Fuel for combustion and air flow are mixed at the discharge end, redundant fuel can fall into the surface of the inclined groove, flow through the oil return pipe and flow back to the oil feeder to be supplied again, the combustion efficiency of the fuel is improved, and meanwhile the more uniform combustion heating effect can be achieved in the combustion chamber. Air flow entering the purging air pipe enters the distribution pipe through the one-way valve, purging treatment can be conducted on the end portion of the oil spraying pipe, a spraying pipe in the fire cover and other positions, the conditions of coking, blocking and the like are reduced, normal use of the combustion assembly is guaranteed, and the maintenance frequency is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of burners, and in particular to a burner with high combustion efficiency. Background Art

[0002] A burner is a device that allows fuel and air to be sprayed out and mixed and burned in a certain way. It is usually made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or titanium. According to its working principle, a burner is a device that converts substances into heat energy through a chemical reaction method called combustion, that is, air and fuel are mixed in an appropriate proportion through a premixing device to make them fully burned. There are many ways to classify burners. According to the fuel method, they are divided into oil burners, gas burners, light oil burners and dual-fuel burners. They are widely used in many heating and combustion equipment;

[0003] In the combustion process of the current oil burner, when the oil burner is in use, the fuel enters from the oil supply device and is directly mixed with the airflow blown in by the fan and is directly blown into the combustion chamber of the equipment. The fuel entering the combustion chamber is immediately ignited and burned. Under the conditions of large oil supply and small fan wind force, the fuel combustion process is short, which is prone to incomplete fuel combustion, reducing the combustion efficiency of the burner and generating more NO compounds. Moreover, for combustion equipment with larger specifications, the combustion end of the existing burner is a single-sided combustion mode. For the interior of the combustion chamber with a longer depth, the heating is not uniform, affecting the heating efficiency. At the same time, after long-term use, the discharge end of the burner is prone to coking and other problems, which requires regular disassembly and cleaning, which is time-consuming and labor-intensive. Therefore, a burner with high combustion efficiency is proposed to realize distributed feed combustion through an improved combustion structure, and to recover excess fuel, thereby improving combustion efficiency and overall thermal energy utilization. At the same time, the fuel discharge end of the burner can be conveniently purged when necessary. Summary of the invention

[0004] In response to the problems in the prior art, the present invention provides a burner with high combustion efficiency, which realizes distributed feed combustion and recovers excess fuel through an improved combustion structure, thereby improving combustion efficiency and overall thermal energy utilization, and at the same time, can conveniently purge the fuel discharge end of the burner when necessary.

[0005] The technical solution adopted by the present invention to solve the technical problem is a burner with high combustion efficiency, comprising a burner body, a connecting sleeve is provided at the installation end of the burner body, a mounting plate connected to a combustion device is welded to the end of the connecting sleeve away from the burner body, an oil supply device connected to an external oil supply device is provided on one side of the surface of the burner body, and a fan is installed on the side of the surface of the burner body away from the oil supply device;

[0006] The combustion end of the burner main body is provided with a distribution pipe inserted into the heating equipment, and an oil delivery pipe is installed between the discharge end of the oil feeder and the distribution pipe, oil injection pipes are arranged at intervals on the top of the distribution pipe, and fire covers are clamped on the top of the oil injection pipes, the outer wall of the oil injection pipe is located at the top of the distribution pipe and is fixedly connected with a sleeve ring, and arc-shaped insert rings are provided on both sides of the sleeve ring, spray holes are provided on the outer periphery of the fire cover, an inner fixed ring is fixedly connected to the inner wall of the fire cover, and an arc-shaped insert plate is fixedly connected to the surface of the inner fixed ring, inclined grooves are provided on both sides of the bottom of the inner wall of the distribution pipe, and a return oil pipe connected to the oil feeder is arranged at the connection between the bottom of the distribution pipe and the bottom of the distribution pipe, and an oil return valve is installed at one end of the return oil pipe.

[0007] By adopting the above technical scheme, the combustion end of the burner body is set with a distribution pipe with a longer length specification. After being installed in place, it can be inserted into the combustion chamber for a long distance. The combustion end assembly is arranged at the top of the distribution pipe. The vaporized fuel supplied through the oil feeder is discharged into the distribution pipe and discharged through the top of the oil injection pipe. The fuel discharged from the oil injection pipe is sprayed out through the spray hole inside the fire cover and mixed with the airflow discharged through the exhaust pipe and then burned. The combustion fuel and the airflow are mixed at the discharge end, and the fuel utilization rate is more sufficient. The undischarged fuel will not be ignited. The excess fuel will fall into the surface of the chute and flow through the return oil pipe and can flow back to the oil feeder for re-supply, thereby improving the combustion efficiency of the fuel and reducing waste. At the same time, for a combustion chamber with a larger space, a more uniform combustion and heating effect can be obtained inside the combustion chamber. The fire cover structure is stuck on the top of the oil injection pipe. When not in use, its gravity makes it fit to the top of the oil injection pipe, blocking the oil injection pipe, and using its gravity to achieve one-way feeding combustion to avoid backfire.

[0008] Specifically, a sleeve is provided at the combustion end of the burner main body at the bottom position of the distribution pipe, a combustion air duct is installed at the top of the sleeve, and the exhaust end of the fan is connected to the combustion air duct, and a connecting pipe corresponding to the position of the injection pipe is provided on the top of the combustion air duct, and an arc-shaped diverter pipe is fixedly connected to one end of the connecting pipe away from the combustion air duct, and an exhaust pipe is provided on the top of the arc-shaped diverter pipe, and the top of the exhaust pipe passes through the top of the distribution pipe and is flush with the surface of the distribution pipe.

[0009] By adopting the above technical solution, in the combustion operation state, the wind force generated when the fan is running is discharged through the combustion air duct inside the casing, the air flow inside the combustion air duct enters the inside of the connecting pipe, and is discharged from the discharge pipe on the top through the arc-shaped diverter pipe. The discharge pipes are evenly distributed on the periphery of the injection pipe, so that the discharged airflow can be evenly and efficiently discharged and mixed with the fuel, thereby improving the combustion-supporting effect.

[0010] Specifically, a purge air duct is horizontally arranged at the bottom end of the sleeve, a connecting pipe is installed between the end of the purge air duct and the end of the distribution pipe and connected through the connecting pipe, and a one-way valve is installed inside the connecting pipe on the side facing the inside of the distribution pipe.

[0011] By adopting the above technical solution, after completing a single combustion process, the oil supplier can be closed and the exhaust end of the fan can be adjusted so that the airflow it blows out enters the interior of the purge air duct. The airflow entering the purge air duct passes through the one-way valve into the distribution pipe and is then sprayed out from the injection pipe position. The end of the injection pipe, the nozzle inside the fire cover and other positions can be purged to reduce coking, blockage and the like, ensure the normal use of the combustion components and reduce the number of maintenance times.

[0012] Specifically, screw holes are provided at the top of the distribution pipe on both sides of the surface of the fuel injection pipe, the distribution pipe is detachably connected with bolts through the screw holes, and a limiting plate located on the top of the fire cover is provided on the top of the bolts.

[0013] By adopting the above technical solution, bolts are removable through the screw hole structure on both sides of the fuel injection pipe, and the bottom ends of the bolts are screwed into the screw holes, thereby fixing the bolts and limit plates on the sides of the fuel injection pipe. The limit plates are located on both sides of the top of the fire cover, and can limit the opening range of the fire cover to ensure the safety of feeding.

[0014] Specifically, a rotating ring located inside a limiting plate is installed at the top end of the bolt, and the installation height of the limiting plate increases in a gradient toward the end away from the burner body.

[0015] By adopting the above technical solution, the swivel structure serves as a connection between the bolt and the limit plate, so that the bolt can be twisted without affecting the angle of the limit plate. The limit plate is at different heights on the surface of the distribution pipe. The limit plate near the end of the burner body is lower, and the limit plate away from the end of the burner body is higher. This allows the fire cover at different positions on the surface of the distribution pipe to obtain different maximum opening ranges, thereby assisting in regulating the pressure difference at different positions inside the distribution pipe.

[0016] Specifically, mounting holes connected to the combustion equipment are provided at the four corners of the mounting plate, and an igniter extending to the top of the fire cover is installed on the side of the mounting plate surface facing the top of the distribution pipe.

[0017] By adopting the above technical solution, the mounting plate and the combustion equipment can be fixed together conveniently using fasteners through the mounting holes, and the igniter plays an ignition role and is turned on for ignition operation during the initial stage of combustion.

[0018] Specifically, an atomizing nozzle is installed at the top of the fuel injection pipe, a through hole is opened at the middle position inside the inner fixed ring, and the inner wall of the through hole is attached to the outer wall of the fuel injection pipe.

[0019] By adopting the above technical solution, the atomizing nozzle can perform secondary atomization on the fuel to further improve the combustion efficiency, and the through-hole structure is inserted into the outer periphery of the fuel injection pipe to ensure the connection fit between the fire cover and the fuel injection pipe.

[0020] Specifically, the specifications of the arc-shaped insert plate correspond to the specifications of the arc-shaped insert ring and are inserted into the arc-shaped insert ring.

[0021] By adopting the above technical solution, the arc-shaped insert plate is inserted into the arc-shaped insert ring, which does not affect the upward movement of the fire cover. At the same time, when the fire cover moves upward, it seals the bottom connection to prevent fuel from being discharged from the bottom.

[0022] Specifically, the exhaust end of the fan is equipped with an output pipe and connected to the ends of the combustion air duct and the purge air duct through the output pipe. A three-way valve located inside the connecting sleeve is installed at the connection between the output pipe and the combustion air duct and the purge air duct.

[0023] By adopting the above technical solution, the exhaust end of the fan can be adjusted through the three-way valve to adjust whether the airflow is supplied to the inside of the combustion air duct or the inside of the purge air duct.

[0024] Beneficial effects of the present invention:

[0025] (1) The present invention discloses a high combustion efficiency burner, in which a combustion end assembly is arranged at intervals at the top of the distribution pipe. The vaporized fuel supplied through the fuel supply device is discharged into the distribution pipe and discharged through the top of the fuel injection pipe. The fuel discharged from the fuel injection pipe is sprayed out through the spray hole inside the fire cover and mixed with the airflow discharged through the exhaust pipe and then burned. The combustion fuel and the airflow are mixed at the discharge end, so that the fuel utilization rate is more sufficient. The undischarged fuel will not be ignited. The excess fuel will fall into the surface of the chute and flow through the return oil pipe and can flow back to the fuel supply device for re-supply, thereby improving the combustion efficiency of the fuel and reducing waste. At the same time, for a combustion chamber with a larger space, a more uniform combustion and heating effect can be obtained inside the combustion chamber. The fire cover structure is stuck on the top of the fuel injection pipe. When not in use, its gravity makes it fit to the top of the fuel injection pipe, blocking the fuel injection pipe, and using its gravity to achieve one-way fuel supply and combustion to avoid backfire.

[0026] (2) The present invention discloses a high combustion efficiency burner. In the combustion operation state, the wind force generated by the operation of the fan is discharged through the combustion air duct inside the casing. The airflow inside the combustion air duct enters the inside of the connecting pipe and is discharged from the discharge pipe on the top thereof through the arc-shaped diverter pipe. The discharge pipe is evenly distributed on the outer periphery of the fuel injection pipe, so that the discharged airflow can be evenly and efficiently discharged and mixed with the fuel, thereby improving the combustion-supporting effect. Bolts are detachable through the screw hole structure on both sides of the fuel injection pipe. The bottom ends of the bolts are screwed into the screw holes, and then the bolts and limit plates are fixed on the side positions of the fuel injection pipe. The limit plates are located on both sides of the top of the fire cover, and can limit the opening range of the fire cover to ensure the safety of feeding. The limit plates are at different heights on the surface of the distribution pipe. The limit plates close to one end of the burner body are lower in height, and the limit plates away from the other end are higher in height. Therefore, the fire covers located at different positions on the surface of the distribution pipe can obtain different maximum opening ranges, thereby playing an auxiliary regulating role in the pressure difference at different positions inside the distribution pipe.

[0027] (3) The high combustion efficiency burner described in the present invention can close the oil supply device after completing a single combustion process, and adjust the exhaust end of the fan so that the air flow it blows out enters the interior of the purge air duct. The air flow entering the interior of the purge air duct passes through the one-way valve and enters the interior of the distribution pipe, and then is sprayed out from the oil injection pipe position. It can purge the end of the oil injection pipe, the nozzle inside the fire cover and other positions, reduce coking, blockage and the like, ensure the normal use of the combustion components, and reduce the number of maintenance times. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the distribution pipe and casing of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the oil injection point at the top of the distribution pipe of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the arc-shaped shunt pipe of the present invention;

[0033] Figure 5 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0034] Figure 6 This is a schematic diagram of the top view of the fuel injection pipe of the present invention;

[0035] Figure 7 This is a schematic diagram of the bottom structure of the fire cover of the present invention when viewed from above;

[0036] Figure 8 It is a schematic diagram of the fan discharge end connection structure of the present invention.

[0037] In the figure: 1. burner body; 101. connecting sleeve; 102. mounting plate; 103. mounting hole; 104. igniter; 2. oil supply device; 201. distribution pipe; 202. oil delivery pipe; 203. oil injection pipe; 204. atomizing nozzle; 205. collar; 206. arc-shaped insert ring; 207. fire cover; 208. spray hole; 209. through hole; 210. inner fixed ring; 211. arc-shaped insert plate; 212, inclined groove; 213, oil return pipe; 214, oil return valve; 3, screw hole; 301, bolt; 302, limit plate; 304, swivel; 4, fan; 401, sleeve; 402, combustion air duct; 403, connecting pipe; 404, arc-shaped diverter pipe; 405, exhaust duct; 5, purge air duct; 501, connecting pipe; 502, one-way valve; 503, output pipe; 504, three-way valve. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] Embodiment 1:

[0040] The technical solution adopted by the present invention to solve the technical problem is a burner with high combustion efficiency, comprising a burner body 1, a connecting sleeve 101 is provided at the installation end of the burner body 1, and a mounting plate 102 connected to the combustion device is welded to the end of the connecting sleeve 101 away from the burner body 1, an oil supply device 2 connected to an external oil supply device is provided on one side of the surface of the burner body 1, and a fan 4 is installed on the side of the surface of the burner body 1 away from the oil supply device 2;

[0041] The combustion end of the burner body 1 is provided with a distribution pipe 201 inserted into the interior of the heating equipment, and an oil delivery pipe 202 is installed between the discharge end of the oil supply device 2 and the distribution pipe 201, the top of the distribution pipe 201 is provided with oil injection pipes 203 at intervals, and the top of the oil injection pipes 203 are clamped with fire covers 207, the outer wall of the oil injection pipe 203 is located at the top of the distribution pipe 201 and is fixedly connected with a sleeve ring 205, and arc-shaped insert rings 206 are provided on both sides of the sleeve ring 205, and the outer periphery of the fire cover 207 is provided with a spray hole 208, the inner wall of the fire cover 207 is fixedly connected with an inner fixed ring 210, and an arc-shaped insert plate 211 is fixedly connected to the surface of the inner fixed ring 210, both sides of the bottom of the inner wall of the distribution pipe 201 are provided with inclined grooves 212, and the bottom of the distribution pipe 201 is provided with a return oil pipe 213 connected to the oil supply device 2 at the connection at the bottom end of the inclined groove 212, and an oil return valve 214 is installed at one end of the return oil pipe 213.

[0042] When in use, the combustion end of the burner body 1 is set with a distribution pipe 201 of a longer length specification. After being installed in place, it can be inserted into the combustion chamber for a long distance. A combustion end assembly is arranged at the top of the distribution pipe 201. The vaporized fuel supplied by the oil supply device 2 is discharged into the distribution pipe 201 and discharged through the top of the injection pipe 203. The fuel discharged from the injection pipe 203 is sprayed out through the spray hole 208 in the fire cover 207 and mixed with the airflow discharged through the exhaust pipe 405 and then burned. The combustion fuel and the airflow are mixed at the discharge end, which has a great impact on the combustion. The utilization rate of the material is more complete, the undischarged fuel will not be ignited, and the excess fuel will fall into the surface of the chute 212, flow through the return oil pipe 213 and can flow back to the fuel supply device 2 for re-supply, thereby improving the combustion efficiency of the fuel and reducing waste. At the same time, for a combustion chamber with a larger space, a more uniform combustion and heating effect can be obtained inside the combustion chamber. The fire cover 207 structure is stuck on the top of the fuel injection pipe 203. When not in use, its gravity makes it fit to the top of the fuel injection pipe 203, blocking the fuel injection pipe 203, and using its gravity to achieve one-way feeding combustion to avoid backfire.

[0043] Specifically, a sleeve 401 is provided at the combustion end of the burner body 1 at the bottom position of the distribution pipe 201, a combustion air duct 402 is installed at the top of the sleeve 401, and the exhaust end of the fan 4 is connected to the combustion air duct 402, and a connecting pipe 403 corresponding to the position of the injection pipe 203 is provided on the top of the combustion air duct 402, and an arc-shaped diverter pipe 404 is fixedly connected to one end of the connecting pipe 403 away from the combustion air duct 402, and an exhaust pipe 405 is provided on the top of the arc-shaped diverter pipe 404, and the top of the exhaust pipe 405 passes through the top of the distribution pipe 201 and is flush with the surface of the distribution pipe 201.

[0044] When in use, in the combustion operation state, the wind force generated by the operation of the fan 4 is discharged through the combustion air duct 402 inside the casing 401, and the airflow inside the combustion air duct 402 enters the connecting pipe 403, and is discharged from the discharge pipe on the top thereof through the arc-shaped diverter pipe 404. The discharge pipes are evenly distributed on the periphery of the injection pipe 203, so that the discharged airflow can be evenly and efficiently discharged and mixed with the fuel, thereby improving the combustion-supporting effect.

[0045] Specifically, screw holes 3 are provided at the top of the distribution pipe 201 on both sides of the surface of the fuel injection pipe 203 , and the distribution pipe 201 is detachably connected with bolts 301 through the screw holes 3 , and a limiting plate 302 located on the top of the fire cover 207 is provided on the top of the bolt 301 .

[0046] When in use, bolts 301 are removable through the screw holes 3 on both sides of the fuel injection pipe 203, and the bottom end of the bolt 301 is screwed into the screw hole 3, thereby fixing the bolt 301 and the limit plate 302 on the side of the fuel injection pipe 203. The limit plate 302 is located on both sides of the top of the fire cover 207, and can limit the opening range of the fire cover 207 to ensure the safety of feeding.

[0047] Specifically, a rotating ring 304 located inside the limiting plate 302 is installed at the top end of the bolt 301 , and the installation height of the limiting plate 302 increases gradually toward the end away from the burner body 1 .

[0048] When in use, the swivel 304 structure serves as a connection between the bolt 301 and the limit plate 302, so that the bolt 301 can be turned without affecting the angle of the limit plate 302. The limit plate 302 has different heights on the surface of the distribution pipe 201. The limit plate 302 near the end of the burner body 1 is lower, and the limit plate 302 away from the end of the burner body 1 is higher. This allows the fire cover 207 located at different positions on the surface of the distribution pipe 201 to obtain different maximum opening ranges, thereby assisting in regulating the pressure difference at different positions inside the distribution pipe 201.

[0049] Specifically, the four corners of the mounting plate 102 are provided with mounting holes 103 connected to the combustion equipment, and an igniter 104 extending to the top of the fire cover 207 is installed on the surface of the mounting plate 102 facing the top of the distribution pipe 201.

[0050] When in use, the mounting plate 102 and the combustion device are conveniently fixed together using fasteners through the mounting holes 103. The igniter 104 plays an ignition role and is turned on to perform the ignition operation during the initial stage of combustion.

[0051] Specifically, an atomizing nozzle 204 is installed at the top of the fuel injection pipe 203 , a through hole 209 is opened at the middle position inside the inner fixed ring 210 , and the inner wall of the through hole 209 is attached to the outer wall of the fuel injection pipe 203 .

[0052] When in use, the atomizing nozzle 204 can perform secondary atomization on the fuel to further improve the combustion efficiency. The through hole 209 structure is inserted into the outer periphery of the fuel injection pipe 203 to ensure the connection fit between the fire cover 207 and the fuel injection pipe 203.

[0053] Specifically, the specifications of the arc-shaped insert plate 211 correspond to those of the arc-shaped insert ring 206 and are inserted into the arc-shaped insert ring 206 .

[0054] When in use, the arc-shaped insert plate 211 is inserted into the arc-shaped insert ring 206, which does not affect the upward movement of the fire cover 207. At the same time, when the fire cover 207 moves upward, it seals the bottom connection thereof to prevent fuel from being discharged from the bottom.

[0055] When in use, a combustion terminal assembly is arranged at intervals at the top of the distribution pipe 201. The vaporized fuel supplied by the fuel supply device 2 is discharged into the distribution pipe 201 and discharged through the top of the fuel injection pipe 203. The fuel discharged from the fuel injection pipe 203 is sprayed out through the spray hole 208 inside the fire cover 207 and mixed with the airflow discharged through the exhaust pipe 405 before burning. The combustion fuel and the airflow are mixed at the discharge end, so that the utilization rate of the fuel is more sufficient, the undischarged fuel will not be ignited, and the excess fuel will fall onto the surface of the chute 212 and flow through the oil return pipe 213 and can flow back to the fuel feeder 2 for re-supply, thereby improving the combustion efficiency of the fuel and reducing waste. At the same time, for a combustion chamber with a larger space, a more uniform combustion and heating effect can be obtained inside the combustion chamber. The fire cover 207 structure is stuck on the top of the fuel injection pipe 203. When not in use, its gravity makes it fit to the top of the fuel injection pipe 203, blocking the fuel injection pipe 203, and using its gravity to achieve one-way fuel feeding combustion to avoid backfire. In the combustion operation state, the wind force generated by the fan 4 when it is running passes through the combustion air inside the casing 401. The combustion air duct 402 is discharged, and the air flow inside the combustion air duct 402 enters the inside of the connecting pipe 403, and is discharged from the discharge pipe on the top thereof through the arc-shaped diverter pipe 404. The discharge pipe is evenly distributed at the peripheral position of the fuel injection pipe 203, so that the discharged air flow can be evenly and efficiently discharged and mixed with the fuel, thereby improving the combustion-supporting effect. Bolts 301 are detachably provided at the two sides of the fuel injection pipe 203 through the screw hole 3 structure, and the bottom end of the bolt 301 is screwed into the screw hole 3, and then the bolt 301 and the limit plate 30 are fixed at the side position of the fuel injection pipe 203. 2. The limit plates 302 are located on both sides of the top of the fire cover 207, and can limit the opening range of the fire cover 207 to ensure the safety of feeding. The limit plates 302 are at different heights on the surface of the distribution pipe 201. The limit plates 302 close to one end of the burner body 1 are lower, and the limit plates 302 away from the other end of the burner body 1 are higher. This allows the fire covers 207 at different positions on the surface of the distribution pipe 201 to obtain different maximum opening ranges, thereby playing an auxiliary regulating role in the pressure difference at different positions inside the distribution pipe 201.

[0056] Embodiment 2:

[0057] The technical solution adopted by the present invention to solve the technical problem is a burner with high combustion efficiency, comprising a burner body 1, a connecting sleeve 101 is provided at the installation end of the burner body 1, and a mounting plate 102 connected to the combustion device is welded to the end of the connecting sleeve 101 away from the burner body 1, an oil supply device 2 connected to an external oil supply device is provided on one side of the surface of the burner body 1, and a fan 4 is installed on the side of the surface of the burner body 1 away from the oil supply device 2;

[0058] The combustion end of the burner body 1 is provided with a distribution pipe 201 inserted into the interior of the heating equipment, and an oil delivery pipe 202 is installed between the discharge end of the oil supply device 2 and the distribution pipe 201, the top of the distribution pipe 201 is provided with oil injection pipes 203 at intervals, and the top of the oil injection pipes 203 are clamped with fire covers 207, the outer wall of the oil injection pipe 203 is located at the top of the distribution pipe 201 and is fixedly connected with a sleeve ring 205, and arc-shaped insert rings 206 are provided on both sides of the sleeve ring 205, and the outer periphery of the fire cover 207 is provided with a spray hole 208, the inner wall of the fire cover 207 is fixedly connected with an inner fixed ring 210, and an arc-shaped insert plate 211 is fixedly connected to the surface of the inner fixed ring 210, both sides of the bottom of the inner wall of the distribution pipe 201 are provided with inclined grooves 212, and the bottom of the distribution pipe 201 is provided with a return oil pipe 213 connected to the oil supply device 2 at the connection at the bottom end of the inclined groove 212, and an oil return valve 214 is installed at one end of the return oil pipe 213.

[0059] When in use, the combustion end of the burner body 1 is set with a distribution pipe 201 of a longer length specification. After being installed in place, it can be inserted into the combustion chamber for a long distance. A combustion end assembly is arranged at the top of the distribution pipe 201. The vaporized fuel supplied by the oil supply device 2 is discharged into the distribution pipe 201 and discharged through the top of the injection pipe 203. The fuel discharged from the injection pipe 203 is sprayed out through the spray hole 208 in the fire cover 207 and mixed with the airflow discharged through the exhaust pipe 405 and then burned. The combustion fuel and the airflow are mixed at the discharge end, which has a great impact on the combustion. The utilization rate of the material is more complete, the undischarged fuel will not be ignited, and the excess fuel will fall into the surface of the chute 212, flow through the return oil pipe 213 and can flow back to the fuel supply device 2 for re-supply, thereby improving the combustion efficiency of the fuel and reducing waste. At the same time, for a combustion chamber with a larger space, a more uniform combustion and heating effect can be obtained inside the combustion chamber. The fire cover 207 structure is stuck on the top of the fuel injection pipe 203. When not in use, its gravity makes it fit to the top of the fuel injection pipe 203, blocking the fuel injection pipe 203, and using its gravity to achieve one-way feeding combustion to avoid backfire.

[0060] Specifically, a purge air duct 5 is horizontally arranged at the bottom end of the sleeve 401, a connecting pipe 501 is installed between the end of the purge air duct 5 and the end of the distribution pipe 201 and is connected through the connecting pipe 501, and a one-way valve 502 is installed inside the connecting pipe 501 on the side facing the inside of the distribution pipe 201.

[0061] During use, after completing a single combustion process, the oil supply device 2 can be closed, and the exhaust end of the fan 4 can be adjusted so that the airflow it blows out enters the interior of the purge air duct 5. The airflow entering the interior of the purge air duct 5 passes through the one-way valve 502 and enters the interior of the distribution pipe 201, and is then sprayed out from the position of the oil injection pipe 203. The end of the oil injection pipe 203, the nozzle inside the fire cover 207 and other positions can be purged to reduce coking, blockage and the like, ensure the normal use of the combustion components, and reduce the number of maintenance times.

[0062] During use, after completing a single combustion process, the oil supply device 2 can be closed, and the exhaust end of the fan 4 can be adjusted so that the airflow it blows out enters the interior of the purge air duct 5. The airflow entering the interior of the purge air duct 5 passes through the one-way valve 502 and enters the interior of the distribution pipe 201, and is then sprayed out from the position of the oil injection pipe 203. The end of the oil injection pipe 203, the nozzle inside the fire cover 207 and other positions can be purged to reduce coking, blockage and the like, ensure the normal use of the combustion components, and reduce the number of maintenance times.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A burner with high combustion efficiency, comprising a burner body (1), a connecting sleeve (101) being provided at a mounting end of the burner body (1), a mounting plate (102) being welded to an end of the connecting sleeve (101) away from the burner body (1) and connected to a combustion device, an oil supply device (2) being provided on one side of a surface of the burner body (1) and connected to an external oil supply device, and a fan (4) being installed on the side of a surface of the burner body (1) away from the oil supply device (2); It is characterized in that The combustion end of the burner body (1) is provided with a distribution pipe (201) inserted into the interior of the heating device, and an oil delivery pipe (202) is installed between the discharge end of the oil supply device (2) and the distribution pipe (201), an oil injection pipe (203) is arranged at intervals on the top of the distribution pipe (201), and a fire cover (207) is clamped on the top of the oil injection pipe (203), and the outer wall of the oil injection pipe (203) is fixedly connected with a sleeve ring (205) at the top position of the distribution pipe (201), and arc-shaped insert rings (207) are provided on both sides of the sleeve ring (205). 6), a spray hole (208) is provided on the outer periphery of the fire cover (207), an inner fixed ring (210) is fixedly connected to the inner wall of the fire cover (207), and an arc-shaped plug plate (211) is fixedly connected to the surface of the inner fixed ring (210), both sides of the bottom of the inner wall of the distribution pipe (201) are provided with inclined grooves (212), and a return oil pipe (213) connected to the oil supply device (2) is provided at the bottom of the distribution pipe (201) at the connection point of the bottom end of the inclined groove (212), and an oil return valve (214) is installed at one end of the inner part of the return oil pipe (213).

2. A burner with high combustion efficiency according to claim 1, characterized in that: The combustion end of the burner body (1) is located at the bottom of the distribution pipe (201) and is provided with a sleeve (401); a combustion air duct (402) is installed at the top of the sleeve (401) and the exhaust end of the fan (4) is connected to the combustion air duct (402); a connecting pipe (403) corresponding to the position of the injection pipe (203) is provided at the top of the combustion air duct (402); an arc-shaped diverter pipe (404) is fixedly connected to one end of the connecting pipe (403) away from the combustion air duct (402), and an exhaust pipe (405) is provided at the top of the arc-shaped diverter pipe (404); the top of the exhaust pipe (405) passes through the top of the distribution pipe (201) and is flush with the surface of the distribution pipe (201).

3. A burner with high combustion efficiency according to claim 2, characterized in that: A purge air duct (5) is horizontally arranged at the bottom end of the sleeve (401), a connecting pipe (501) is installed between the end of the purge air duct (5) and the end of the distribution pipe (201), and the two are connected through the connecting pipe (501), and a one-way valve (502) is installed inside the connecting pipe (501) on the side facing the inside of the distribution pipe (201).

4. A burner with high combustion efficiency according to claim 1, characterized in that: The top of the distribution pipe (201) is provided with screw holes (3) at both sides of the surface of the fuel injection pipe (203); the distribution pipe (201) is detachably connected with bolts (301) through the screw holes (3); and a limiting plate (302) located at the top of the fire cover (207) is provided on the top of the bolts (301).

5. A burner with high combustion efficiency according to claim 4, characterized in that: A rotating ring (304) located inside the limiting plate (302) is installed at the top end of the bolt (301), and the installation height of the limiting plate (302) increases in a gradient toward the end away from the burner body (1).

6. A burner with high combustion efficiency according to claim 1, characterized in that: The four corners of the mounting plate (102) are provided with mounting holes (103) connected to the combustion equipment. An igniter (104) extending to the top of the fire cover (207) is installed on the surface of the mounting plate (102) facing the top of the distribution pipe (201).

7. A burner with high combustion efficiency according to claim 1, characterized in that: An atomizing nozzle (204) is installed at the top end of the fuel injection pipe (203), a through hole (209) is opened at the middle position inside the inner fixed ring (210), and the inner wall of the through hole (209) is attached to the outer wall of the fuel injection pipe (203).

8. A burner with high combustion efficiency according to claim 1, characterized in that: The specifications of the arc-shaped insert plate (211) correspond to those of the arc-shaped insert ring (206) and are inserted into the interior of the arc-shaped insert ring (206).

9. A burner with high combustion efficiency according to claim 2, characterized in that: An output pipe (503) is installed at the exhaust end of the fan (4) and is connected to the ends of the combustion air pipe (402) and the purge air pipe (5) through the output pipe (503); a three-way valve (504) located inside the connecting sleeve (101) is installed at the connection between the output pipe (503) and the combustion air pipe (402) and the purge air pipe (5).

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