1327results about "Burners" patented technology

The invention discloses an ammonia-coal co-combustion burner which comprises a plasma pulverized coal pre-combustion level module, an ammonia two-level combustion module, a pulverized coal main combustion level module and an air classification secondary air module. Plasma is generated by discharging between electrodes in the plasma pulverized coal pre-combustion stage module, pulverized coal carried by primary air is combusted through a plasma fire core area to generate first pulverized coal flame, and the first pulverized coal flame ignites ammonia fuel on the upper stream of the ammonia two-stage combustion module to generate stable ammonia-rich flame. Combustion products and unburnt reactants are mixed with downstream air in the ammonia two-stage combustion module to generate lean-ammonia flame for heating pulverized coal in the pulverized coal main combustion stage module to generate second pulverized coal flame, and the pulverized coal and ammonia gas are promoted to be fully combusted in the air classification secondary air module through secondary air, so that stable combustion of ammonia-coal mixed fuel is realized; the problems that ammonia coal combustion is unstable, NOx emission is too high and ammonia escapes are effectively solved.

The invention discloses a plasma-enhanced direct-injection type liquid ammonia atomizing nozzle and a liquid ammonia combustor, and belongs to the field of liquid fuel combustion. The plasma-enhanced direct-injection type liquid ammonia atomizing nozzle comprises a liquid ammonia channel, a compressed air channel, an atomizing channel, a secondary air channel and a heating assembly, wherein the outlet end of the compressed air channel and the outlet end of the liquid ammonia channel are both communicated with the atomizing channel; the heating assembly comprises a high-voltage electrode, a ground electrode and a central air channel, the ground electrode is arranged on the outer side of the high-voltage electrode, and an outlet of the central air channel faces a discharge area formed by the high-voltage electrode and the ground electrode; a discharge area formed by the high-voltage electrode and the ground electrode is close to the liquid ammonia channel; a ground electrode hole is formed in the position, close to the liquid ammonia channel, of the ground electrode. Self-evaporation of preheated liquid ammonia is achieved through small plasma flames, efficient atomization of large-flow liquid ammonia is achieved, and consumption of atomization media is reduced while stable combustion is achieved.

The ammonia storage tank includes a fuel supply unit that supplies ammonia discharged from an ammonia storage tank to an engine, a fuel recovery unit that recovers excess ammonia returned from the engine, an exhaust treatment unit that treats exhaust gas discharged from the engine, and a vent unit that discharges ammonia discharged from the fuel supply unit or the fuel recovery unit to the outside, the vent unit includes a low-pressure discharge drum that collects low-pressure ammonia discharged from the ammonia storage tank or the fuel supply unit, a high-pressure discharge drum that collects high-pressure ammonia discharged from the fuel supply unit or the fuel recovery unit, and an exhaust treatment machine that treats ammonia and transfers it to a vent mast, and the low-pressure discharge drum or the high-pressure discharge drum transfers ammonia to the exhaust treatment unit or the exhaust treatment machine.

The utility model discloses a multi-stage split energy-saving combustion device for liquid fuel, the energy-saving combustion device is composed of a combustion cylinder, an ion combustion body and a combustion body installation box in sequence from top to bottom, the upper end of the ion combustion body is fixedly connected with the combustion cylinder, the lower end of the ion combustion body is provided with an impeller air inlet channel, and the combustion cylinder is fixedly connected with the combustion body installation box. The impeller air inlet channel is located in the combustion body installation box, the combustion body installation box is of a hollow cavity structure, and a fan air inlet and an oil inlet hole are formed in the side face of the combustion body installation box. Compared with the prior art, the atomization combustion mode of an original electronic injection fuel stove is changed essentially, atomization of a high-pressure atomization nozzle is not needed, high-temperature vaporization combustion of liquid fuel is achieved in the first-stage combustion cavity, stable combustion and sufficient vaporization are achieved in the second-stage combustion cavity, and sufficient combustion and heating are achieved in the third-stage combustion cavity. The energy consumption is lower, the heat utilization rate is nearly doubled, the safety is higher, the independence is good, and the applicability is wide.

The invention relates to a burner (10) for an exhaust tract through which exhaust gas from an internal combustion engine flows, comprising a combustion chamber (12) in which a mixture comprising air and fuel is to be ignited and thereby combusted, comprising an inner swirl chamber (18) through which a first part of the air flows, which has a first swirl-generating device (38) by means of which a swirl-shaped flow of the first part of the air can be effected, and a first outlet opening (20) through which the first part of the air flows, and comprising an outer swirl chamber (28) surrounding at least a longitudinal region of the inner swirl chamber (18) in the circumferential direction of the inner swirl chamber (18), through which a second part of the air flows, which has a second swirl-generating device (40) by means of which a swirl-shaped flow of the second part of the air can be effected,and has a second outlet opening (32) through which the second part of the air flows and the first part of the air flows through the inner swirl chamber (18) and the first outlet opening (20).

A combustor includes a housing and a combustion chamber assembly. The combustion cavity assembly comprises a cylinder part, a mounting base, a first spark plug, a second spark plug and a diesel nozzle assembly. The barrel part comprises a combustion cavity. The mounting base comprises an air inlet channel and a mounting cylinder part. The first sparking plug and the second sparking plug stretch into the combustion cavity in a protruding mode. The diesel oil nozzle assembly is installed on the installation barrel body part and used for spraying diesel oil into the combustion cavity. The diesel nozzle assembly comprises a valve needle, a first rotational flow assembly located at the bottom of the valve needle and a sleeve part located below the first rotational flow assembly, the first rotational flow assembly comprises an inlet hole and a closure spraying hole, and the sleeve part is provided with a mixing cavity communicating with the closure spraying hole. And the mixing cavity is used for mixing diesel oil and air. The closure spraying hole improves the continuity of spraying diesel oil at low power.

A combustor includes a housing and a combustion chamber assembly. The combustion cavity assembly comprises a cylinder part, a mounting base, a first spark plug, a second spark plug and a diesel nozzle assembly. The barrel part comprises a combustion cavity. The mounting base comprises an air inlet channel, a first air hole through hole and a second air hole through hole. The first sparking plug and the second sparking plug stretch into the combustion cavity in a protruding mode. A first airflow purging channel is further arranged between the first spark plug and the first wall part so that part of air can be used for purging the first spark plug. A second airflow purging channel is further arranged between the second spark plug and the second wall part so that part of air can be used for purging the second spark plug. According to the combustor, the probability of carbon deposition of the first spark plug and the second spark plug can be reduced.

The invention provides a combustion control method and system for an ammonia-coal dual-fuel mixed boiler, and belongs to the field of combustion control of ammonia-coal mixed combustion. The combustion control method for the ammonia-coal dual-fuel mixing boiler comprises the following steps that S1, boiler operation parameters in the ammonia-coal dual-fuel mixing process are generated according to the boiler load and the ammonia mixing proportion requirement in the ammonia-coal dual-fuel mixing process; the boiler operation parameters comprise an ammonia feeding amount set value and a coal feeding amount set value. According to the invention, the fuel quantity, the air quantity and the pollutant discharge in the ammonia-coal dual-fuel blending combustion can be automatically adjusted and controlled, the combustion efficiency is improved, the low pollutant discharge is realized, and the blending combustion automation level is improved.

The invention discloses a high-temperature ammonia burner based on ammonia catalytic cracking hydrogen production and liquid ammonia atomization combustion and an operation method thereof, high-temperature air generated by a grate cooler is introduced into a catalytic cracking device, heat of the high-temperature air is utilized to promote liquid ammonia gasification, activate a catalyst and promote ammonia catalytic cracking to generate hydrogen, and ammonia, nitrogen and hydrogen mixed gas is formed; the reaction activity of the fuel is improved; medium-temperature air and mixed gas generated by the catalytic cracking device are supplied to the first to fifth gas inlets respectively, stable on-duty flames are formed under the action of a sliding arc, then the mixed gas introduced into the fourth gas inlet is ignited to form main combustion flames, high-temperature and active components generated by the main combustion flames promote liquid ammonia atomization, and the liquid ammonia atomization effect is improved. And the liquid ammonia is ignited to form axial graded flames. According to the invention, ammonia catalytic cracking hydrogen production and high-temperature air are fully utilized, the flame stability and temperature are improved, stable combustion of large-flow liquid ammonia can be maintained, and the problems of low flame temperature, difficult ammonia ignition, unstable combustion and the like are effectively solved.

The invention relates to a self-adaptive power plant combustor and an adjusting system thereof. A combustion chamber shell of the combustor is internally provided with a combustion cavity and wrapped with an air bin, the air bin is connected with the combustion cavity through an inclined air hole, one end is provided with a smoke exhaust pipeline and a fan, the other end is provided with a sealing cover with an igniter and a gas distribution chamber, and the upper end is provided with a pulverized coal distribution bin and a powder spraying hole. The adjusting system comprises a temperature and pressure sensor, a controller and an executing mechanism. The advantages are obvious, the air holes and the fuel gas holes are specially designed, and related parts of the pulverized coal distribution bin enable fuel to be fully mixed and combusted; the adjusting system accurately regulates and controls combustion parameters; the service life of the equipment is prolonged by a heat-insulating layer, high-temperature-resistant and The smoke purification device reduces pollution; and intelligent management is realized through remote monitoring. And the combustion efficiency and stability are effectively improved, and efficient and clean utilization of power energy is assisted.

A plasma injection module includes a fuel receiving end, a discharge end opposite the fuel receiving end, and an axial fluid pathway extending between the fuel receiving end and the discharge end. An insulator assembly defines a first portion of the axial fluid pathway proximate to the fuel receiving end. An injection tube assembly having a permanent magnet is positioned downstream of the insulator. A voltage input connection is arranged downstream of the insulator assembly and upstream of the injection tube assembly. The voltage input connection secures a voltage source to the injection tube to form a plasma filament within and adjacent to the axial fluid pathway. During operation a permanent magnet produces a magnetic field that interacts with the plasma filament to rotate the plasma filament and increase an area of ignition between the plasma filament and the combustible material at the discharge end.

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.

An injector for a combustor of a gas turbine engine is provided with a plurality of first vanes radially arrayed about a central axis of the injector and a plurality of second vanes radially arrayed about the central axis of the injector and disposed radially inward of the plurality of first vanes. A plurality of fuel injection holes are disposed nearer to a trailing edge than to a leading edge of the second vanes for injecting fuel into compressed air passing through over the second vanes. The trailing edge of each of the second vanes includes a non-planar profile configured to induce turbulence in the compressed air to thereby mix the fuel with the compressed air and reduce the surfaces on which undesirable flame anchoring may occur.

The invention belongs to the related technical field of combustion equipment, and discloses an auxiliary fuel gas circuit device and a combustor, the auxiliary fuel gas circuit device is installed on the combustor used for liquid-gas mixed combustion and comprises a pressure stabilizing ring cavity and fuel gas pipelines, the pressure stabilizing ring cavity is annular and hollow, one side of the pressure stabilizing ring cavity communicates with the first ends of the fuel gas pipelines in the circumferential direction, and the other side of the pressure stabilizing ring cavity communicates with the second ends of the fuel gas pipelines in the circumferential direction; a fuel gas inlet is formed in the pressure stabilizing ring cavity; the combustor comprises an air flow channel and a fuel oil channel located in the middle of the air flow channel, the pressure stabilizing ring cavity and the wall face of the air flow channel are slidably arranged in the extending direction, a detachable limiting structure is arranged between the pressure stabilizing ring cavity and the wall face of the air flow channel, the multiple fuel gas pipelines are located on the periphery of the air flow channel, and the second ends of the fuel gas pipelines are bent inwards. The fuel gas pipeline can slide relative to the air flow channel and the fuel oil channel, the position of the fuel gas outlet can be adjusted according to the types of specific liquid fuel and gaseous fuel and specific working condition parameters, the liquid fuel and the gaseous fuel can be matched to the optimal corresponding position, and the optimal combustion effect is achieved.

The present invention discloses a plasma-enhanced direct-injection liquid ammonia atomizing nozzle and a liquid ammonia burner, which belong to the field of liquid fuel combustion. The plasma-enhanced direct-injection liquid ammonia atomizing nozzle comprises a liquid ammonia channel, a compressed air channel, an atomizing channel, a secondary air channel and a heating component, wherein the outlet end of the compressed air channel and the outlet end of the liquid ammonia channel are both connected to the atomizing channel; the heating component comprises a high-voltage electrode, a ground electrode and a central air channel, the ground electrode is arranged on the outside of the high-voltage electrode, and the outlet of the central air channel faces the discharge area formed by the high-voltage electrode and the ground electrode; the discharge area formed by the high-voltage electrode and the ground electrode is close to the liquid ammonia channel; a ground electrode hole is arranged on the ground electrode near the liquid ammonia channel. The present invention realizes the self-evaporation of the preheated part of the liquid ammonia through a small plasma flame, realizes the efficient atomization and stable combustion of large-flow liquid ammonia, and reduces the consumption of the atomizing medium.

A fuel spray nozzle includes a fuel circuit having in series a gallery, circumferentially spaced passages arranged in a row around the nozzle, and an annular spin chamber. Each passage has an inlet for receiving a respective portion of the fuel from the gallery and a metering orifice for discharging its portion of the fuel. The passages are configured such that, when the flow of liquid fuel to the inlet port is shut off, a respective differential static pressure develops across stagnant liquid fuel remaining between the inlet and the metering orifice of each passage, and the passages are further configured such that one or more selected passages develop a different differential static pressure to the remaining passages causing a flow of purging air to enter the gallery from the combustor through the selected passages and exit through the remaining passages, thereby purging the gallery and the passages of fuel.

The present invention discloses an ammonia-blended swirl burner with a multi-channel ammonia fuel pipe, which belongs to the technical field of burners. By arranging an ammonia fuel pipe assembly composed of an outer ammonia fuel pipe, an inner ammonia fuel pipe and an end ammonia fuel pipe in a primary air duct, the reliable and safe transportation of ammonia fuel in the swirl burner can be realized; and by setting the outlet of the ammonia fuel to a structure extending a certain distance from the outlet of the primary air duct, in combination with the trumpet-shaped outlet section at the end of the primary air duct and the flow-guiding refractory mechanism, the safe low-nitrogen and efficient combustion of ammonia fuel after being transported in the burner can be realized. The ammonia-blended swirl burner with a multi-channel ammonia fuel pipe in the present invention has a compact structure and is easy to use. It can not only ensure the air tightness of the ammonia channel, but also flexibly adjust the incident position and incident speed of ammonia, effectively realize the efficient and low-nitrogen combined combustion of coal powder and ammonia fuel, improve the environmental protection of coal-fired boilers during use, and reduce the operating cost of coal-fired boilers, and has good practical value.

The present invention discloses a coaxial staged burner for a low-pollution combustion chamber of a gas-liquid dual-fuel gas turbine, which relates to the technical field of gas turbine combustion chambers and solves the problem that existing coaxial staged burners are difficult to achieve stable combustion using a single liquid or gas fuel under any load working conditions. The coaxial staged burner comprises: a mounting flange, a main fuel sleeve and a swirler; a fuel supply interface is provided on the mounting flange; four-stage fuel sleeves are coaxially nested in the main fuel sleeve; the swirler consists of a central duty class, a first-stage premixing stage, a second-stage premixing stage, a first-stage hub and a second-stage hub; when liquid fuel works alone, the fuel enters the swirl channel through the duty class liquid fuel nozzle and the second-stage blade liquid fuel hole to achieve premixing and evaporation processes; when gas fuel works alone, the fuel enters the swirl channel through the first-stage blade fuel hole and the second-stage blade gas fuel hole to be mixed.

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 utility model discloses a special fuel oil and air mixing structure for a burner, which relates to the field of burner accessories and comprises an air inlet bin, two ends of the air inlet bin are respectively connected with an air inlet and a transmission bin, the outer side of the transmission bin is connected with a mixing bin and an air outlet, and a motor is mounted in the transmission bin. The output end of the motor is connected with air inlet fan blades and diffusion fan blades, the air inlet fan blades are located in the air inlet bin, the diffusion fan blades are located in the mixing bin, an oil inlet pipe is installed on the outer side of the mixing bin and extends into the mixing bin to be aligned with the diffusion fan blades, and a fixing steel ring is installed on the inner wall of the mixing bin. By means of the sealing plate and the fixing steel ring, when the combustor is not used any more, the sealing plate is pulled by the return spring to be tightly attached to the fixing steel ring, and the edge of the sealing plate is sealed through the inclined sleeve, so that mixed fuel in the mixing bin cannot be discharged from the transmission bin, and fuel leakage is reduced.

To provide a burner capable of suppressing combustion deterioration of pulverized fuel when pulverized fuel and ammonia are mixed and burned, a boiler, and a combustion method.SOLUTION: A burner comprises: a pulverized fuel supply pipe that guides pulverized fuel and primary air for transporting the pulverized fuel to a furnace; a first gaseous ammonia supply pipe that supplies gaseous ammonia to the pulverized fuel supply pipe; and a mixed fuel nozzle that ejects a mixture of the pulverized fuel, the gaseous ammonia, and the primary air from the pulverized fuel supply pipe into the furnace. The burner is configured such that a ratio of an amount of the gaseous ammonia to a total amount of the pulverized fuel and the gaseous ammonia supplied to the furnace through the mixed fuel nozzle is 10% or less on a calorific value basis.SELECTED DRAWING: Figure 3

The invention relates to an exhaust gas burner device (10) for an exhaust gas aftertreatment system (2) of a vehicle (1), comprising a combustion chamber (11) in which a combustion flame can be generated from a mixture, a nozzle unit (41) for introducing a fuel (201) into the combustion chamber (11), an air guide (20) for supplying intake air (200) to the combustion chamber (11), and an ignition source (42) for igniting the mixture. The invention further relates to a vehicle (1) and a method (100).

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.

The invention relates to an efficient low-emission power plant combustor and a control system thereof. The combustor comprises a turbine body, a fuel tank, a tail gas tank, a gas mixing disc and the like, an outer shell in the turbine body is communicated with a combustion-supporting gas inlet bin and the combustion chamber, the fuel tank and the tail gas tank supply materials to the gas mixing disc, and fuel, combustion-supporting air and tail gas are mixed through the gas mixing disc and then combusted in the combustion chamber. The control system comprises a control module, a monitoring module, an adjusting module, a safety protection module and a communication module, the control module adopts a Siemens controller to achieve accurate control, the monitoring module monitors key parameters in real time, the adjusting module adjusts the air-fuel ratio, the safety protection module guarantees safety, and the communication module achieves remote monitoring. The combustor can improve the combustion efficiency and reduce pollutant emission, has intelligent control and safety guarantee, is suitable for the field of power generation of power plants, and meets the requirements for environmental protection and efficient operation.

The invention discloses an ammonia-coal mixed combustion burner, comprising: a plasma coal powder pre-combustion stage module, an ammonia two-stage combustion module, a coal powder main combustion stage module, and an air-graded secondary air module; in the plasma coal powder pre-combustion stage module, discharge is performed between electrodes to generate plasma, coal powder carried by primary air passes through a plasma fire core region to burn and generate a first coal powder flame, the first coal powder flame ignites ammonia fuel in the upstream of the ammonia two-stage combustion module to generate a stable ammonia-rich flame, combustion products and unburned reactants are mixed with air in the downstream of the ammonia two-stage combustion module to generate an ammonia-poor flame to heat the coal powder in the coal powder main combustion stage module to generate a second coal powder flame, and in the air-graded secondary air module, the secondary air is used to promote the full combustion of coal powder and ammonia, thereby realizing the stable combustion of the ammonia-coal mixed fuel, and effectively solving the problems of unstable combustion of ammonia coal and NO x Problems with excessive emissions and ammonia slip.

The utility model discloses a liquid fuel ion combustion body which comprises a base, a vaporizing combustion cylinder and a cyclone air inlet cylinder are arranged on the upper top face of the base, an oil inlet is formed in the side face of the base and communicated with the interior of a vaporizing combustion cavity, a circle of annular atomizing combustion net is arranged in the vaporizing combustion cylinder, and the cyclone air inlet cylinder is communicated with the interior of the atomizing combustion net. The size of the atomization combustion net is matched with the inner side wall of the vaporization combustion cylinder, a gap is reserved between the atomization combustion net and the inner side wall of the vaporization combustion cylinder, and a circle of annular protrusion for limiting the atomization combustion net is arranged at the bottom of the base. A circle of annular atomization combustion net is directly designed on the inner side wall of the vaporization combustion cylinder, the area of the atomization combustion net is greatly increased, the attachment area of an oil film is increased, diffusion of liquid fuel is facilitated, the oil film is formed to be spread and combusted on the atomization combustion net, and compared with an original combustion mode of an annular oil way, the combustion effect is better, and the combustion efficiency is improved. And the ion combustion body is easier to process and manufacture.

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).

Burner for use in an exhaust system of an internal combustion engine with a housing (1) that delimits a combustion chamber (2) and forms a hot gas outlet (8) of the combustion chamber (2) and a fresh gas inlet (6), and with a fuel injector (5) for introducing fuel into the combustion chamber (2), wherein a fresh gas guide (4) connects the fresh gas inlet (6) to the combustion chamber (2) and wherein the fresh gas guide (4) at least partially surrounds the combustion chamber (2) in at least one section, characterized by a design of the fresh gas guide (4) such that a main flow direction of the fresh gas in at least one subsection of the section of the fresh gas guide (4) surrounding the combustion chamber (2) is directed opposite to a main flow direction of gas in the adjacent section of the combustion chamber (2).

The present invention discloses an ammonia-doped swirl burner and a method for adjusting the ammonia-doped ratio thereof, wherein the ammonia-doped swirl burner comprises a burner housing, a primary air-powder guide tube for air-powder guidance, at least one wind channel for introducing air, and at least two ammonia channels for introducing ammonia; the primary air-powder guide tube and the at least one wind channel are stacked and arranged in sequence from the inside to the outside, and are both connected to the boiler combustion chamber; the primary air-powder guide tube and the at least one wind channel are respectively connected to an ammonia channel in a one-to-one correspondence. Since the primary air-powder guide tube and the at least one wind channel are respectively connected to an independent ammonia channel, the amount of ammonia entering the primary air-powder guide tube and the wind channel can be adjusted as needed, thereby increasing the adjustment range of the ammonia-doped ratio, which is beneficial to improving combustion efficiency and reducing the generation of nitrogen oxides, thereby meeting environmental protection requirements.