569results about "Burners" patented technology

A gas turbine engine, comprising a compressor section, combustion section, and turbine section in serial flow arrangement, with the combustion section comprising: a combustor liner at least partially defining a combustion chamber; a wall coupled to the combustor liner; a first fuel supply to supply a first fuel; a gaseous fuel supply to supply a gaseous hydrogen fuel; and a fuel nozzle assembly coupled to the wall and fluidly coupled to the first fuel supply and the gaseous hydrogen fuel supply, the fuel nozzle assembly comprising: a main mixer; and a fuel nozzle comprising an outer wall defining a pilot channel and an outer wall fuel orifice to emit at least one of the first fuel or the gaseous fuel radially outward into the main mixer; and a secondary mixer disposed in the pilot channel.

A fuel nozzle for a turbine engine. The fuel nozzle has a premixer body, vortex generator, air injection orifice, and fuel injection orifice. The premixer body defines a primary flow path. The air injection orifice is provided in the premixer body and located downstream of the vortex generator. The fuel injection orifice is provided in the premixer body and opens into the primary flow path.

The utility model provides a nozzle which comprises a first pipe body, a second pipe body, a third pipe body, a spray head assembly and an end cover. An air inlet and a material return opening are formed in the side wall of the first pipe body; a feeding hole and a temperature sensor mounting hole are formed in the side wall of the second pipe body; the nozzle assembly comprises a nozzle outer sleeve and a nozzle inner core, a nozzle cavity is formed in the nozzle outer sleeve, the nozzle inner core is located in the nozzle cavity, a nozzle hole penetrating through the two ends is formed in the center of the nozzle outer sleeve, a plurality of air grooves from the edge to the middle are formed in the end face, away from the third pipe body, of the nozzle outer sleeve, and a nozzle hole penetrating through the two ends is formed in the middle of the nozzle inner core. An end cover hole which penetrates through the two ends and corresponds to the spray hole is formed in the center of the end cover. When the nozzle is blocked, the nozzle assembly can be cleaned only by screwing off the end cover and then screwing off the nozzle assembly, time and labor are saved, efficiency is high, strength is low, and maintenance is easy and convenient.

The invention belongs to the field of boiler waste heat utilization, and particularly discloses an alcohol-hydrogen fuel mixed combustion system utilizing boiler waste heat, which comprises a methanol cracker unit, a methanol supply unit, a methanol cracked gas supply unit, an alcohol-hydrogen burner unit and a smoke exhaust steam supply unit, the methanol cracker unit comprises a methanol cracker, a methanol inlet pipe, a cracked gas outlet pipe, a smoke exhaust inlet flange, a smoke exhaust outlet flange, a methanol shell side area and a smoke exhaust pipe side area, a plurality of heat exchange pipes are uniformly distributed in the smoke exhaust pipe side area, and the methanol inlet pipe is used for connecting the methanol supply unit and the methanol shell side area; the exhaust smoke inlet flange is used for connecting the methanol cracker unit and the exhaust smoke steam supply unit, and the methanol supply unit and the methanol cracked gas supply unit are both used for connecting the methanol hydrogen burner unit and the methanol cracker unit. By means of the self-designed methanol cracker combustion loop, liquid methanol and methanol cracking gas can be combusted at the same time, and the energy utilization rate is greatly increased.

A fuel nozzle (106) for a turbine engine. The fuel nozzle (106) has a premixer body (108), vortex generator (118), air injection orifice (146), and fuel injection orifice (134). The premixer body (108) defines a primary flow path (110). The air injection orifice (146) is provided in the premixer body (108) and located downstream of the vortex generator (118). The fuel injection orifice (134) is provided in the premixer body (108) and opens into the primary flow path (110).

The invention discloses a gas furnace fly ash co-processing method and system, and belongs to the technical field of solid waste disposal. The method comprises the following steps: S1, grinding raw coal and water to obtain coal water slurry; s2, mixing the coal water slurry and the fly ash to obtain mixed slurry; wherein the water content of the mixed slurry does not exceed 55%, and the wet basis heat value is greater than 2800kcal / kg, so that the mixed slurry can realize self-sustaining combustion after being fed into the furnace; s3, the mixed slurry enters a hearth to be combusted; and S4, high-temperature flue gas generated by combustion enters the next procedure for heat exchange. According to the fly ash co-processing method, on one hand, heat generated by combustion of the coal water slurry can be utilized for heat tracing of the fly ash, so that combustion of the fly ash is achieved, and extra energy consumption is not needed; and on the other hand, the fine fly ash and the coal water slurry are mixed to obtain slurry with certain viscosity, so that the fine fly ash can be effectively prevented from being carried by the airflow and quickly passing through the hearth, the retention time of the fly ash in the hearth is prolonged, and the fly ash is combusted more sufficiently.

A method of making a fluid injector for a gas turbine engine includes depositing material (104) onto a piece of tube stock (102). The method includes machining the deposited material into a fluid injector component (106). Depositing can include laser cladding the material onto the piece of tube stock. The method can include placing or flowing braze into a braze joint location (116) between the deposited material and another fluid injector component and forming the braze into a braze joint in the braze joint location.

This utility model relates to the field of stove technology, specifically a stove core structure, including an inner tube and an outer tube. The inner tube is open at the bottom and closed at the top, while the outer tube is closed at the bottom and open at the top. The space between the inner and outer tubes forms a combustion chamber. Several air inlet pipes are evenly arranged around the circumference of the outer tube at its lower part. Ventilation openings are also provided at the lower and upper parts of the outer tube. Several evenly arranged ventilation openings are provided on the wall of the inner tube. This utility model replaces ventilation openings with evenly distributed air inlet pipes at the lower part of the outer tube. On the one hand, this prevents the combustion flame at the bottom of the combustion chamber from escaping through the ventilation openings at the lower part of the outer tube. On the other hand, the air inlet pipes guide air into the bottom of the combustion chamber more orderly, providing a sufficient and stable oxygen supply for fuel combustion at the bottom. This solves the technical problems of existing stove core structures easily causing flame escape during combustion and fuel waste due to incomplete combustion within the combustion chamber.

The present disclosure relates to a device for heating a medium, including a burner unit and a flame tube, wherein the burner unit generates flue gas, wherein the flame tube has a flue gas inlet, a longitudinal axis, a casing extending along the longitudinal axis, and an end face opposite the flue gas inlet, wherein the flue gas passes from the burner unit into the flame tube via the flue gas inlet, wherein a plurality of recesses are located in the casing, and wherein the recesses have different dimensions and / or are distributed asymmetrically on the casing. The longitudinal axis is in a central plane, wherein a first side and a second side of the casing are formed by the central plane, and wherein recesses on the first side have smaller dimensions than recesses on the second side.

The invention discloses an outer-thick inner-thin pulverized coal center ammonia-mixed low-nitrogen burner, relates to the technical field of burners, and solves the problems of non-flammable ammonia and high NOx emission concentration in ammonia-doped combustion of a pulverized coal boiler. The device comprises a primary air pipeline, a secondary air ring cavity, a bluff body and a central ammonia gas pipe, the central ammonia gas pipe is slidably arranged on the primary air pipeline, the gas outlet end is arranged in the center in the primary air pipeline, and the gas inlet end is arranged outside the primary air pipeline; an air distribution disc is arranged at the gas outlet end of the central ammonia gas pipe, and a telescopic mechanism and an ammonia gas adjusting valve are arranged at the gas inlet end; a plurality of bluff bodies are arranged on the central ammonia gas pipe, and the sections of the bluff bodies are trapezoidal; a Venturi tube is arranged in the primary air pipeline, a combustion stabilizing ring is arranged at the air outlet end, and a secondary air ring cavity is coaxially formed in the outer side of the primary air pipeline. The ammonia gas is directly utilized in the form of fuel, meanwhile, the pulverized coal is combusted together with the ammonia in the mode that the pulverized coal is thick outside and light inside, so that the combustion state is stabilized, the burn-off rate of the ammonia gas is high, and the emission concentration of NOx in the combustion process is low.

The present invention provides a fuel atomizing nozzle (1) for handling at least two fuels and an atomizing fluid, the fuel atomizing nozzle (1) comprising a solid body (10) having a mainly cylindrical shape around a longitudinal axis (X) defining a first end (11), a second end (12) and a contour surface (16) extending there between connecting the two ends (11, 12), wherein the first end (11) comprises at least one outlet (17), wherein the fuel atomizing nozzle (1) further comprises a fluid compartment (14) being arranged centrally around the longitudinal axis (X) in the solid body (10), at least a first and a second fuel compartment (15a, 15b) being arranged in a radial plane between the fluid compartment (14) and the contour surface (16), the fuel compartments (15a, 15b) having an annular shape, the at least first and second fuel compartments (15a, 15b) being connected to a pre-filling chamber (35) by at least a first and a second fuel channel (25a, 25b), respectively, at least one mixing chamber (40) being arranged between the fluid compartment (14) and the at least one outlet (17), and a fluid channel (24) connecting the at least one mixing chamber (40) and the fluid compartment (14), wherein the pre-filling chamber (35) has an annular shape, and the pre-filling chamber (35) is connected via a pre-filling channel (45) to the at least one mixing chamber (40).

The application provides a boiler combustion control method and system for ammonia-coal dual fuel blending, and belongs to the field of ammonia-coal mixed combustion control. The boiler combustion control method for ammonia-coal dual fuel blending comprises the following steps: S1: generating a boiler operation parameter in an ammonia-coal dual fuel blending process according to a boiler load and an ammonia blending ratio requirement during ammonia-coal dual fuel blending; the boiler operation parameter comprises an ammonia supply amount set value and a coal supply amount set value. The application can realize automatic adjustment control of fuel quantity, air quantity and pollutant emission in ammonia-coal dual fuel blending combustion, improve combustion efficiency, realize low pollutant emission, and improve the automatic blending level.

The invention discloses a hydrogen and pulverized coal mixed combustion device and a using method thereof, and relates to the technical field of combustion equipment.The hydrogen and pulverized coal mixed combustion device comprises a combustion furnace, a mixing unit, a first conveying pipeline and a second conveying pipeline, and the mixing unit mixes first gas and hydrogen into hydrogen mixed gas; the first conveying pipeline is communicated between the combustion furnace and the mixing unit; the second conveying pipeline surrounds the peripheral side of the first conveying pipeline and is suitable for conveying the pulverized coal into the combustion furnace, and the hydrogen mixed gas and the pulverized coal are suitable for being combusted in the combustion furnace. According to the combustion device for mixed combustion of the hydrogen and the pulverized coal, the first gas is adopted in the mixing unit to dilute the hydrogen to form the hydrogen mixed gas, the hydrogen mixed gas and the pulverized coal enter the combustion furnace at the same time, and when the hydrogen mixed gas and the pulverized coal in the combustion furnace are subjected to cooperative combustion, the risk of backfire is effectively eliminated, the combustion rate is regulated and controlled, and the combustion efficiency is improved. And therefore, safe and stable cooperative combustion of the hydrogen and the pulverized coal in the combustion furnace is realized.

The invention discloses a multi-axis servo regulation and control liquid ammonia burner based on smoke backflow liquid ammonia vaporization and a control method, and relates to the field of clean energy equipment, the multi-axis servo regulation and control liquid ammonia burner comprises a liquid ammonia burner body, an annular liquid ammonia flow servo regulation mechanism, an annular liquid ammonia conveying and distributing mechanism, a liquid ammonia plasma ignition device, an ammonia combustion flame scanning mechanism and the like. The multi-axis servo motor drives the execution valves to adjust the flow ratio of liquid ammonia fuel to hot air in the fluid channels, meanwhile, liquid ammonia is vaporized through heat exchange of backflow smoke in the boiler and then fully premixed with the hot air to enter the boiler to be combusted, and efficient combustion of the ammonia fuel of the coal-fired boiler is achieved. The technical problems of large latent heat of vaporization of liquid ammonia fuel, continuous clean combustion of ammonia fuel, ammonia escape and control of NOX generated by combustion are solved.

The invention relates to the technical field of industrial combustion equipment, in particular to a top combustion heavy oil burner and a combustion method.The top combustion heavy oil burner comprises a burner shell, a center oil gun and a multi-stage air distribution structure, the multi-stage air distribution structure is coaxially sleeved from inside to outside, and a center air pipe with a cyclone at an outlet is used for providing center rotational flow air for stable combustion; an outlet of the combustion-supporting air pipe is a direct-flow air channel, and the combustion-supporting air pipe is used for providing combustion-supporting air and controlling flame forms; an outlet of the cooling air pipe faces the inner wall of the shell, and the cooling air pipe is used for forming a cooling air curtain to protect the burner body. By means of the multistage air distribution design, efficient and stable combustion and low pollutant emission of heavy oil are achieved, the service life of the combustor in the high-temperature environment is greatly prolonged through a unique cooling structure, and the combustor is particularly suitable for top combustion type heating of an industrial boiler.

To suppress generation of NOx while stably burning ammonia.SOLUTION: A fuel supply facility includes: a main ammonia line in which liquid ammonia flows; a vaporizer connected to an end of the main ammonia line and heating and vaporizing the liquid ammonia by exchanging heat between a heating medium and the liquid ammonia; a gas ammonia line connected to the vaporizer and guiding gas ammonia that is ammonia vaporized by the vaporizer to a combustor of a gas turbine as fuel; a liquid ammonia line for guiding the liquid ammonia that has not undergone heat exchange with the heating medium in the vaporizer to the combustor as fuel; and a switching device capable of switching an ammonia supply state between a first state of guiding the gas ammonia from the gas ammonia line to the combustor and a second state of guiding the liquid ammonia from the liquid ammonia line to the combustor.SELECTED DRAWING: Figure 1

The ammonia co-firing boiler (1) as a boiler comprises: a burner (20) supplied with at least one of a first fuel (F1) and ammonia fuel (F2) and combustion air (A1); a regulating damper (304); a combustion state detection unit (44) that distinguishes between the co-firing of the first fuel and ammonia fuel (F2) and the combustion of the first fuel (F1); and a control unit (40) comprising a combustion control unit that controls the exhaust gas oxygen concentration to a first oxygen concentration when the combustion state detection unit (44) detects that the first fuel (F1) is being burned separately, and controls the exhaust gas oxygen concentration to a second oxygen concentration lower than the first oxygen concentration when the combustion state detection unit (44) detects that the first fuel (F1) and ammonia fuel (F2) are being burned together.

The application discloses a methanol dual-fuel staged atomization burner for ships and relates to the technical field of thermal energy engineering.A core component of the application comprises a wind box, a door plate assembly, a methanol valve box, a main fuel gun, an ignition gun, a cyclone, a metal throat assembly and the like.The burner controls the atomization of methanol and other fuels through a flow divider and an atomizing nozzle, and realizes stable fuel flame through a cyclone.The atomizing nozzle adopts a staged Y-shaped structure, can adjust the spray hole according to different fuels, and realizes different injection requirements of fuel oil and methanol.The burner is divided into three stages to support combustion through the accurate cooperation of combustion-supporting wind, pipeline purging wind and a fuel inlet, so that an efficient and low-pollution combustion process is ensured.The combustion-supporting wind forms secondary cyclone through the cyclone, reduces the scouring of backflow flue gas on the nozzle, and ensures the stability of the core flame of the burner.The metal throat assembly controls the diameter of the combustion flame, and ensures uniform combustion.

The utility model relates to a range technology field especially, and more particularly relates to a kind of atomization range burner and its stove, atomization range burner includes burner shell and air bin, burner shell is formed with first gas chamber;Air bin is formed with second gas chamber, and wind-oil mixed atomizer is installed in second gas chamber, and wind-oil mixed atomizer is connected with burner shell installation;Wind-oil mixed atomizer is formed with third gas chamber, and the wind-oil mixed spray hole of wind-oil mixed atomizer is towards first gas chamber;First gas chamber is connected second gas chamber by first through-hole, and second gas chamber is connected third gas chamber by second through-hole;Air inlet is provided in air bin, and air inlet is connected with air source, and wind-oil mixed atomizer is connected with fuel source, and wind-oil mixed atomizer sprays atomized oil gas at wind-oil mixed spray hole;The wind pressure of everywhere inside wind-oil mixed atomizer is balanced, and flame is straight, and combustion is more sufficient, and economic benefit is better.

An outdoor furnace gas supply assembly comprises a gas valve connected with a tank, a gas pipe, a gas inlet connector connected with a burner, a nozzle and a copper sintering filter element, the nozzle is arranged at the gas outlet end of the gas inlet connector, the gas outlet end of the gas valve, the gas pipe and the gas inlet connector are sequentially communicated to form a gas passage, and the copper sintering filter element is arranged in the gas passage and filters atomized gas. And through the arrangement of the copper sintering filter element, the fuel gas is atomized, and the nozzle is prevented from being blocked.

The utility model provides an oil gun atomizing sheet with a double-included-angle atomizing structure, which comprises an atomizing base body component, an outer ring atomizing component and an inner ring atomizing component, the oil gun atomizing sheet can generate two groups of oil mist spraying at different angles through the arrangement of the outer ring atomizing component and the inner ring atomizing component, the atomized oil mist of the two parts can be mutually supplemented, and the atomizing effect is good. Therefore, the coverage range of oil mist is expanded, fuel can be more evenly distributed in a combustion area, the combustion efficiency is improved, due to the synergistic effect of the outer ring atomization component and the inner ring atomization component, it can be guaranteed that the fuel is fully mixed and atomized in the combustion process, the stable combustion process can be achieved through the even fuel distribution, and the combustion efficiency is improved. The possibility of combustion fluctuation and incomplete combustion is reduced, the whole atomizing sheet is compact in structure and easy to mount and dismount, the matching notch is matched with the oil gun in shape, the atomizing sheet can be conveniently mounted on the oil gun through a connecting piece, and maintenance and replacement are facilitated.

The invention belongs to the technical field of ignition, and discloses a three-component pintle rotational flow torch igniter. According to the three-component pintle rotational flow torch igniter, liquid fuel is jetted through the central pintle rotational flow nozzle, and a gas oxidizing agent is jetted through the peripheral rotational flow nozzle. The liquid fuel from the pintle swirl nozzle moves in the radial direction, and the gas oxidizing agent from the swirl nozzle rotates in the axial direction, so that the interaction between the liquid fuel and the gas oxidizing agent is enhanced, the atomization quality is improved, and the ignition success rate is further improved. Besides, the flame temperature of the torch igniter is increased through secondary oxygen or air jetted from the body part of the torch igniter, and meanwhile, the wide-range adjustment of the flame temperature of the torch igniter is realized. The device is suitable for large combustion devices such as liquid rocket engines, gas generators and combustion heaters.

The invention discloses ammonia-doped combustion equipment. The ammonia-doped combustion equipment comprises a combustion chamber; the wind powder conveying channel is communicated with the combustion chamber and used for conveying pulverized coal and air; the first air supply channel and the second air supply channel are respectively communicated with the combustion chamber and are used for conveying air; the first ammonia gas pipeline, the second ammonia gas pipeline and the third ammonia gas pipeline are respectively used for conveying ammonia gas, the first ammonia gas pipeline is communicated with the air powder conveying channel, the second ammonia gas pipeline is communicated with the first air supply channel, and the third ammonia gas pipeline is communicated with the second air supply channel; the control device is used for respectively controlling the ammonia flow of the first ammonia pipeline, the second ammonia pipeline and the third ammonia pipeline according to preset control conditions. The ammonia-doped combustion equipment is provided with the multiple independent ammonia gas pipelines, the ammonia gas flow of the multiple ammonia gas pipelines is controlled through the control device according to the preset control conditions, and therefore ammonia doping modes of various proportions or concentrations can be achieved, and the combustion efficiency can be improved.

The utility model discloses a cremation machine combustion control structure which comprises a burner, an oil inlet assembly, an air inlet assembly, a filtering assembly, a cleaning assembly and a moving assembly, the oil inlet assembly comprises an oil inlet pipe arranged at the oil inlet end of the burner, a control piece is arranged in the middle of the oil inlet pipe, the air inlet assembly is arranged on one side of the burner, and the filtering assembly is arranged on the other side of the burner. The filtering assembly comprises a fixing frame arranged in the middle of the oil inlet pipe, a filter screen is connected into the fixing frame in a penetrating mode, the cleaning assembly is arranged on one side of the filter screen and used for cleaning the filter screen, and the moving assembly is arranged on one side of the filter screen. Through the design of the cleaning assembly and the moving assembly, when the filter screen is blocked by impurities in oil, the cleaning assembly is driven by the moving assembly to move on one side of the filter screen, and the filter screen is cleaned through the cleaning assembly, so that the impurities are separated from the filter screen, and the oil passing of the filter screen can be recovered without disassembling the filter assembly; therefore, the workload of workers is reduced.

Provided are a gasification furnace operating method, a gasification furnace, a two-stage gasification apparatus, a gasification method for an organic raw material, and a two-stage gasification method for organic waste that make it possible to stably operate a gasification furnace over a long period of time. The present invention provides a gasification furnace operating method including, in a gasification furnace into which an organic raw material is introduced and that produces gas and slag, directly or indirectly introducing an alkali metal-containing compound into the gasification furnace to reduce the viscosity of the slag.

The utility model discloses a kind of ammonia mixed combustion's cyclone combustor. Among them, cyclone combustor includes: first shell, with combustion chamber intercommunication;Center primary air pipe, setting in first shell, center primary air pipe with combustion chamber intercommunication;First grade ammonia gas passage, setting in center primary air pipe;Secondary air duct, with first shell intercommunication, and secondary air duct with combustion chamber intercommunication;Second grade ammonia gas passage, with first shell intercommunication, and second grade ammonia gas passage outer sleeve in secondary air duct outside. Such setting can reduce the emission of carbon dioxide and other harmful substances, with lower carbon emission and higher combustion efficiency;While it can also reduce the emission of furnace outlet nitrogen oxides, protect environmental quality.

The invention relates to the technical field of rotational flow flame holders, and discloses a rotational flow flame holder and multistage air distribution device of a linear flame treatment combustor, the rotational flow flame holder and multistage air distribution device comprises a barrel, a flame stabilizing mechanism is arranged in the barrel, the flame stabilizing mechanism comprises a guide barrel, the guide barrel is located in the barrel, and the guide barrel is located in the barrel. The surface of the guide cylinder is fixedly connected with three first mounting plates distributed circumferentially, and the ends, away from the guide cylinder, of the first mounting plates are fixedly connected with the inner wall of the cylinder body. According to the invention, the inclined guide plate of the guide cylinder enables airflow to form primary rotational flow, the gas-liquid contact area is enlarged, the central pressure is reduced, a foundation is laid for flame root stabilization, the inclined guide plate of the flame stabilizing cylinder further strengthens the rotational flow, a high-strength rotational flow field is formed, and a backflow area formed by the rotational flow field entrains high-temperature combustion products and continuously heats unburned mixed airflow; the flame is kept in a stable combustion state in dynamic airflow, and the mixing efficiency of fuel and air is improved.

The utility model relates to an improved energy -conserving combustion stove core, including stove core body, stove core body has first stove section and second stove section, the inside diameter of first stove section is less than second stove section, and the lower extreme of first stove section is equipped with the cover, is equipped with the central hole and sets up first air -assist hole around central hole on the cover, and the upper extreme of second stove section is equipped with the fire -break cover, still includes gasification lid, and the gasification lid sets up in the inner chamber of second stove section and will the inner chamber of second stove section divide into first chamber and second chamber, be equipped with the mounting hole that the first stove section is passed into first stove section for the ignition needle on first stove section, or be equipped with the mounting hole that the first chamber is passed into for the ignition needle on second stove section, be equipped with a plurality of first fire -break through -hole on the gasification lid, and first fire -break through -hole is from the upper end surface of gasification lid and is penetrated to the lower end surface, and a plurality of first fire -break through -hole surrounds the central axis distribution of gasification lid.

A fuel injector (32) for a gas turbine engine combustor (26) includes a swirler (34), a mounting stage (38), and a distributor (36). The swirler (34) has a shaft (52), a collar (54), a throat section (56), and first and second axial ends (48, 50). The throat section (56) includes an inner radial surface (86) that defines a central passage (88) that extends between the swirler inner bore (160) and the collar (54). The collar (54) includes a plurality of apertures (78, 80) extending therethrough disposed radially outside of the central passage (88). The distributor (36) is selectively positionable relative to the throat section (56).

The utility model relates to the technical field of combustion engines, in particular to an oil-gas dual-purpose combustion engine. Comprising a machine body, an air guide pipe arranged on one side of the machine body, a fan arranged on one side of the machine body, an ignition needle arranged in the air guide pipe, an oil nozzle arranged at the position, close to the ignition needle, in the air guide pipe, a combined air valve arranged on one side of the air guide pipe at intervals and a pump body arranged at the bottom of the machine body, an air guide box is arranged on one side of the fan, and an air door adjusting mechanism is arranged in the air guide box. The driving device drives one adjusting plate to rotate, the adjusting plate rotates to drive the rotating rod on one side to rotate, the rotating rod rotates to drive the connecting rod on one side to move, the connecting rod drives the other adjusting plates to rotate synchronously through the rotating rod in the moving process, the opening and closing angle of the rotating plate can be controlled easily, the air inlet amount can be accurately controlled, and therefore the air inlet amount is adjusted according to different fuels; the technical problems that one side of a fan of an existing burner is provided with a fixed opening, and due to different types of fuel, a variable-frequency fan is usually adopted to control the air volume, so that the air volume adjusting error is large are solved.