27results about How to "Flame stabilization" patented technology

The invention belongs to the field of scramjet engines, and particularly relates to an ammonia-hydrogen power wide-speed-range scramjet engine and a combustion method thereof. The ammonia-hydrogen power wide-speed-range scramjet engine comprises a combustion chamber, a liquid ammonia storage device and a hydrogen storage device; a concave cavity is formed in the combustion chamber, a fuel injection section upstream injection hole is formed in a fuel injection section of the concave cavity, the concave cavity is located at the downstream of the fuel injection section, a fuel injection section upstream micro-jet injection hole is formed in the upstream of the fuel injection section upstream injection hole, and a concave cavity inner micro-jet injection hole is formed in the concave cavity; the liquid ammonia storage device is connected with an upstream injection hole of the fuel injection section through a cooling structure; and the hydrogen storage device is connected with the upstream micro-jet injection hole of the fuel injection section and the micro-jet injection hole in the concave cavity. According to the invention, liquid ammonia and hydrogen are introduced as fuels to realize wide-range combustion organization, so that wide-range efficient combustion is realized, the fuel heat absorption requirement of high-Mach-number active cooling thermal protection is met, and zero carbon emission can be realized in the whole process.

The invention relates to the field of chemical incineration, in particular to a waste gas heat value self-adaptive combined combustor which comprises an ignition device, a flame detector, a sight glass, a hearth, a waste gas pipeline, a waste gas combustion-supporting pipeline, a main gas pipeline and a main gas combustion-supporting pipeline. Different types of waste gas can enter the hearth through the waste gas pipeline, the waste gas can effectively flow to the hearth under the action of the waste gas combustion-supporting pipeline, main gas can be better and fully combusted through the arrangement of the main gas pipeline and the main gas combustion-supporting pipeline, meanwhile, the ignition device, the flame detector and the sight glass are matched, and the combustion efficiency is improved. The high-concentration waste gas combustion-supporting device has the advantages that in the chemical incineration process, when the heat value of the waste gas is low, the waste gas can be sprayed into the hearth, when the heat value of the waste gas is high, combustion-supporting air and the high-concentration waste gas can be rapidly mixed, and meanwhile the effect of stabilizing waste gas flames can be achieved.

The invention discloses an ammonia-doped coal ignition structure, an ammonia-doped coal burner and an ammonia-doped coal ignition method. The ammonia-doped coal ignition structure comprises an ignition channel, a first-stage fuel channel, a first-stage combustion-supporting channel, a second-stage fuel channel, a second-stage combustion-supporting channel and a main combustion chamber. Fuel in the ignition channel can be ignited through the ignition electrode, primary combustion of ammonia fuel is ignited through ignition flames from the ignition nozzle, then multi-stage ignition combustion of coal doped with ammonia is achieved, ignition is easier, control is easy, the flames are more stable, and meanwhile emission of nitric oxide is greatly reduced. The coal-doped ammonia ignition structure is adopted in the coal-doped ammonia burner, and the coal-doped ammonia ignition method is suitable for the coal-doped ammonia ignition structure and the coal-doped ammonia burner.

The invention belongs to the technical field of tail gas incineration, and particularly relates to a parameter calculation method for a tail gas inlet of a tail gas incinerator. In order to solve the problems that in the using process of an existing incinerator, tail gas cannot be controlled, and the tail gas cannot be fully combusted, according to the gas flow calculation principle, the circumferential aperture ratio calculation principle and the rotational flow strength calculation principle, the combustion of the tail gas is controlled; the number of the tail gas inlets in each row and the gas inlet direction of the tail gas inlets are calculated in combination with parameters of the incinerator, so that rotating gas flow is generated, the tail gas is fully combusted in the incinerator, under the condition that flames are kept stable, the tail gas reaction is more sufficient, the fuel utilization rate and the tail gas treatment efficiency are improved, and the combustion efficiency is improved. And the length of the hearth can be shortened under the condition of keeping the same treatment efficiency, so that the cost is saved, and the occupied area is saved.

The invention discloses a high-pressure large-flow pre-combustion chamber structure of an afterburning cycle engine, and belongs to the technical field of machinery. The injector is of a three-cavity structure. And the uppermost part far away from the combustion chamber is the oxidant cavity, the oxidant cavity adopts a single-side inlet, and the flow of an oxidant in the oxidant cavity is more uniform through the flow equalizing plate in the oxidant cavity, so that the flow and the mixing ratio among the nozzles of the injector are uniform. A fuel secondary injection cavity is arranged at the lowermost part close to the combustion chamber, and the fuel subjected to secondary injection enters the combustion chamber through a plurality of self-impact injection holes in the injection panel. A fuel primary injection cavity is formed in the middle, and fuel injected for the first time enters the combustion chamber through a fuel nozzle. Fuel is divided into two independent cavities, mutual interference between the fuel in different injection modes is avoided, and stable combustion of the injector is facilitated.

The utility model discloses a flame cutting gun cutting torch for liquid fuel, which relates to the field of flame cutting technical equipment and comprises a cutting torch outer protective sleeve, one end of the cutting torch outer protective sleeve is provided with a conical spray outlet, and the other end of the cutting torch outer protective sleeve is provided with an annular retainer ring. A protection sleeve flow guide assembly matched with the conical spraying opening is arranged on the inner side of the cutting torch outer protection sleeve, a cutting torch core assembly is arranged on the inner side of the protection sleeve flow guide assembly, a flow dividing assembly is arranged on the outer side of one end of the cutting torch core assembly in a sleeving mode, and a connecting-in pipe connected with the cutting torch core assembly is arranged at one end of the flow dividing assembly. The cutting torch is scientific and novel in structure, the vortex effect is generated through cooperation of the two flow guide grooves, the liquid fuel spraying force is increased, the walking route of the liquid fuel in the cutting torch forms an S shape through cooperation of the two copper sleeves, the S shape is equivalent to the two-return-stroke output effect, the energy-saving effect is achieved, and the cutting torch is suitable for popularization and application. And the device is suitable for various flame cutting operations with high requirements.

The utility model provides a plasma ignition device. The plasma ignition device comprises a shell, a plasma generator, a primary air pipe, a secondary air pipe, an ignition cavity, a combustion stabilizing cavity and a device stabilizing structure. A nozzle of the plasma generator extends into an ignition cavity in the shell, the outlet end of the ignition cavity is communicated with the stable combustion cavity, the primary air pipe is communicated with an inlet of the ignition cavity, and the secondary air pipe is communicated with the stable combustion cavity. The device stabilizing structure comprises a fixing frame, a fixing table and elastic assemblies, one end of the fixing frame is connected with the boiler, the fixing table is perpendicularly arranged on the fixing frame, a circular groove capable of being arranged on the outer surface of the shell in a sleeving mode is formed in the fixing table, and the multiple elastic assemblies are arranged on the circumference of the surface of the circular groove. The elastic assembly comprises a spring and a positioning rod, the positioning rod is sleeved with the spring, one end of the positioning rod is fixedly connected with the surface of the circular groove, and the length of the positioning rod is one third of the length of the spring without stress. And stable ignition combustion of the plasma ignition device is realized.

The application belongs to the technical field of gas turbine engines, and provides a combustion chamber with intelligent point flameout and an ignition method, which comprises: a diffuser connected with a machine case; a flame tube is installed in the machine case, the flame tube has a backflow area in the inside, and the backflow area is surrounded by a high-speed shear layer; an ignition system comprises an ignition electrode; when the flame tube is ignited, or when the pressure in the flame tube is lower than a preset value, or when the pressure change rate in the flame tube exceeds a preset range, the ignition electrode moves to the backflow area through the high-speed shear layer. The combustion chamber has an electromagnetic / pneumatic force coupled ignition system, the ignition position is moved from the high-speed shear layer to the backflow area, thereby being beneficial to flame stabilization, the generation probability of an initial flame core can be greatly improved, and due to the fact that the initial flame core is located in the backflow area, the propagation distance of the initial flame core can be significantly shortened or even eliminated, and the engine ignition envelope range can be greatly widened.

The invention relates to the technical field of kiln combustion, and discloses a plasma combustion torch wind disc which comprises a disc body, a connecting assembly is arranged on the disc body, a mounting assembly is arranged in the connecting assembly, the disc body is connected with a spherical central electrode through the connecting assembly and the mounting assembly, a plurality of inclined groove blocks are annularly distributed on the outer side of the disc body, and the inclined groove blocks are arranged in the disc body. An air guide groove is formed between the inclined groove blocks and the disc body, a central air pipe is arranged in the middle of the disc body, a plurality of variable-diameter air holes are annularly distributed in the disc body and the central air pipe, and a plurality of circular axial air holes are formed in the disc body. Through the design of the inclined air flow guide groove and the variable-diameter air holes, airflow mixing is optimized, the combustion efficiency is improved, a spherical center electrode and plasma are adopted for ignition, mixed gas is rapidly ignited, the ignition delay problem is solved, and the device adapts to complex working conditions; the modular structure facilitates rapid disassembly and assembly of the electrodes, reduces maintenance time, and is more convenient to operate and safe and reliable to use compared with a traditional structure.

This invention belongs to the field of iron and steel metallurgy technology, specifically relating to a staged combustion system and process for a gas boiler. The system includes a burner connected to the gas boiler, a combustion-supporting gas structure, and a combustion-supporting air structure. The burner includes a combustion stabilizing plate, located at the front end of the burner and connected to the gas boiler. The combustion stabilizing plate has three layers of staged ignition units evenly arranged around its center: an inner layer, a middle layer, and an outer layer. The middle layer ignition unit includes multiple externally mixed combustion nozzles, where combustion-supporting air and gas mix outside the combustion stabilizing plate. The outer layer ignition unit includes multiple internally mixed combustion nozzles, where combustion-supporting air and gas mix inside the combustion stabilizing plate. The combustion-supporting gas structure provides fuel to the burner, and the combustion-supporting air structure provides combustion-supporting air to the burner. This invention effectively achieves complete combustion of the gas, reduces nitrogen oxide production, and provides a stable flame, demonstrating good performance in terms of safety, environmental protection, and efficiency.

A concentric sleeve is adopted as a premixer or a distributor, a water-cooling tube bundle and a gas injection tube bundle are welded alternately to form a combustion surface tube bundle, the concentric sleeve is communicated with the gas injection tube bundle, and gas injection holes are formed in the hearth side of the gas injection tube bundle. The inner layer of the concentric sleeve is communicated with the annular space, gas in the inner layer and air in the annular space are fully premixed, premixed gas enters the gas injection pipe bundle in the pipe length direction after turning by 90 degrees and is distributed, then the premixed gas is sprayed out of the gas injection holes for combustion, uniform ignition is conducted through a flat cable ignition spray pipe, a traditional large-size premixer and a distributor are abandoned, a large-area flow equalizing pore plate is not needed, and the cost is reduced. Gas is premixed, distributed and combusted evenly, resistance is low, flame rigidity is high, pollutant emission is low, the structure is compact, machining and transformation are easy, the burner is suitable for various furnace types such as corner pipes and cross flow pipes, a plurality of concentric sleeves can be arranged to be communicated with different gas spraying pipe bundles, different kinds of gas are sprayed in, and mixed blending combustion or independent blending combustion of various kinds of gas is achieved.

The invention discloses a double-path sliding arc ignition head based on multi-point atomization, strong rotational flow and bluff body backflow flame stabilization and a liquid ammonia cooling electrode and an operation method of the double-path sliding arc ignition head. A first sliding arc is arranged in a first pre-combustion stage and mixed with atomized ammonia to form flame, and meanwhile, under the action of a bluff body and a strong rotational flow backflow area, atomization and combustion of the ammonia in the first pre-combustion stage are promoted; a second sliding arc is arranged in a second pre-combustion stage, atomized ammonia is mixed with air, flame is formed through discharging of the sliding arc, and the atomized ammonia is ignited to form second pre-combustion stage flame; under the action of the first pre-combustion stage flame and the second pre-combustion stage flame, stable main combustion stage flame is formed; the electrode is cooled by latent heat of liquid ammonia gasification, the ablation rate of the electrode is reduced, the discharge power is improved, and the gliding arc ignition capability is greatly improved. The defects that a high-power sliding arc electrode is high in ablation speed, short in service life and the like are overcome, liquid ammonia is ignited through a double-path high-power sliding arc, pre-combustion-stage and main-combustion-stage flames are formed, and the problems that ammonia ignition is difficult, combustion is unstable and the like are effectively solved.

The present invention relates to a low-nitrogen burner for a preheating furnace of an acetylene device, comprising a burner body, a burner brick and an air gun assembly installed on the burner body, a combustion-supporting hole is provided on the side wall of the burner brick near the top; the air gun assembly comprises an inner ring gun and an outer ring gun, the inner ring gun and the outer ring gun are respectively located on the inner and outer sides of the burner brick and arranged one by one, a main hole and a secondary hole are provided on the outer ring gun nozzle of the outer ring gun, the main hole is parallel to the inclined surface of the outer wall of the burner brick, the angle between the main hole and the axis of the outer ring gun is a1, and the angle between the secondary hole and the axis of the outer ring gun is a2, a1<a2; a vertical spray hole and an inclined spray hole inclined toward the burner brick are provided on the inner ring gun nozzle of the inner ring gun; in a group of outer ring guns and inner ring guns arranged correspondingly, the main hole, the vertical spray hole and the inclined spray hole are located on the same plane. The present invention can meet environmental protection standards and can also effectively solve combustion instability phenomena such as combustion deignition.

The invention relates to a double-rotational-flow gas burner, in particular to a double-rotational-flow gas burner with high calorific value adaptability, and aims to solve the problems that a traditional double-rotational-flow gas burner cannot maintain the stable flow speed of gas and combustion-supporting air at a nozzle of the gas burner, cannot maintain the stable flame and cannot adapt to the great change of the calorific value of the gas. The center air cylinder, the standby gas cylinder, the gas cylinder, the standby combustion-supporting air cylinder and the combustion-supporting air cylinder are sequentially arranged from inside to outside, the standby gas adjustable guide vane is arranged between the center air cylinder and the standby gas cylinder, and the gas fixed guide vane is arranged between the standby gas cylinder and the gas cylinder. The combustion-supporting air fixed guide vane is arranged between the gas cylinder and the standby combustion-supporting air cylinder, the standby combustion-supporting air fixed guide vane is arranged between the standby combustion-supporting air cylinder and the combustion-supporting air cylinder, and the standby gas adjustable guide vane realizes blade angle adjustment between the central air cylinder and the standby gas cylinder. The burner is applied to the field of burners.

The invention discloses an arc torch combustion-supporting device and an ammonia burner, and relates to the field of combustion. The arc torch combustion-supporting device adopts liquid ammonia as a cooling medium, and comprises at least one pair of electrode pairs, at least one electrode of the electrode pair is provided with an electrode cooling module, the electrode cooling module is a hollow layer which is arranged on the electrode and allows the liquid ammonia to pass through, one end of the hollow layer is a liquid ammonia inlet, and the other end of the hollow layer is an ammonia gas or gas-liquid mixture outlet; ammonia gas or a gas-liquid mixture formed after the liquid ammonia is gasified serves as fuel and is ignited by an electric arc generated by the electrode pair, and then flames are formed. According to the arc torch combustion-supporting device, the energy utilization efficiency of the arc torch power source can be improved from 90% to 95% or above, and the energy utilization efficiency of the arc torch is improved from 70% to 90% or above.

This invention relates to the technical field of combustion devices, and particularly to a fuel blending flame stabilization structure, a dual-variable combustion chamber, and an engine. The fuel blending flame stabilization structure includes: a flame stabilization body, equipped with a pre-combustion channel and multiple fuel passages, one end of the pre-combustion channel having an inlet and the other end having an outlet; a swirler; multiple first nozzles; multiple second nozzles; and multiple third nozzles; wherein the second nozzles arranged in adjacent fuel passages intersect in direction, and the direction of the third nozzles is the same as the direction of the pre-combustion channel outlet. This invention achieves flame stabilization in the pre-combustion stage through the combination of the swirler and the first nozzles; the intersecting directions of the second nozzles arranged in adjacent fuel passages achieve flame stabilization; and the injection of fuel by the third nozzles towards the pre-combustion channel outlet of the flame stabilization body enables circumferential flame propagation, achieving a stable flame stabilization effect. It is applicable to the outer ring of a dual-variable combustion chamber, thereby achieving flame stabilization in the outer ring of the dual-variable combustion chamber.

The utility model discloses a commercial stove burner which comprises a gas distribution seat, the gas distribution seat is provided with a fire distributor, a fuel gas input channel used for connecting fuel gas and a plurality of fuel gas distribution channels, one end of each fuel gas distribution channel is communicated with the fuel gas input channel, and the other end of each fuel gas distribution channel is provided with a nozzle capable of allowing the fuel gas to be sprayed out. A plurality of venturi tubes are arranged in the fire distributor, one ends of the venturi tubes are in one-to-one correspondence with the gas spraying ends of the nozzles, and gas inlet gaps allowing air to enter the venturi tubes to be mixed with fuel gas are formed between the gas inlet ends of the venturi tubes and the gas spraying ends of the nozzles; the fire distributor is provided with a fire hole communicated with the gas outlet end of the Venturi tube and an igniter used for igniting fuel gas sprayed out of the fire hole. A relatively simple structure is adopted in the whole combustor, single air inlet and multi-head air outlet of the combustor can be achieved, the combustion power is large, and manufacturing is convenient.

The present invention provides an adaptive controllable jet ramjet combination engine and its working method and application, the combination engine includes an air inlet, a combustion chamber, a tail nozzle, a small flow rocket and a large flow rocket; the air inlet, the combustion chamber and the tail nozzle are connected end to end in sequence; the small flow rocket is matched and installed in the combination section of the combustion chamber; the large flow rocket is matched and installed on the outside of the tail nozzle, and its air outlet is connected to the inner cavity of the tail nozzle; when the large flow rocket is started, its rocket plume can promote the formation of the aerodynamic throat in the tail nozzle; the tail nozzle is matched and installed with a rotating adjustment plate at the part connected to the air outlet of the large flow rocket. The present invention installs rockets in the flow channel in the combustion chamber and on the outside of the tail nozzle, and meets the requirements of high thrust and effective specific impulse required by the aircraft during the acceleration process in the ejection mode and the sub-combustion mode by adjusting the coupling effect of the large flow rocket, the small flow rocket and the tail nozzle.

The invention provides a method for opening a new furnace by using high-silicon molten iron in a 120-ton dry dedusting converter, belongs to the technical field of steel smelting, and solves the problem that the difficulty of opening the new furnace by using the high-silicon molten iron in the existing dry dedusting converter is large. The method comprises the following steps: converter loading: loading molten iron and scrap steel into a 120-ton top-bottom combined blown converter; oxygen supply by the converter: igniting and supplying oxygen after the converter is loaded; the auxiliary materials are added for the first time after ignition, the auxiliary materials are added for the second time, the active lime is added in batches, and then the limestone and the active lime are added in batches; and converter end point control. According to the method, the converter quantity, the scrap steel quantity and the molten iron quantity are reasonably controlled, the complexity and uncertainty in the production process can be reduced, the stable molten pool depth of the converter in the smelting process can be ensured by accurately controlling the charging quantity, and therefore the production efficiency and the product quality are improved, the production cost is reduced, energy consumption is optimized, and the economic benefit is increased. Unnecessary energy consumption and waste generation are reduced, and environmental protection and sustainable development are facilitated.

The present application relates to a flame tube, an engine and a helicopter, wherein the flame tube comprises an inner flame ring and an outer flame ring, one end of the inner flame ring and the outer flame ring are provided with an opening, the other end of the inner flame ring and the outer flame ring are connected by a mounting plate, a plurality of evaporation tubes are mounted on the mounting plate, an annular cavity is formed between the inner flame ring, the outer flame ring and the mounting plate, the evaporation tube comprises a confluence pipe and an evaporation nozzle, the evaporation nozzle is located in the annular cavity and a plurality of the evaporation nozzles are arranged in an annular shape around the axis of the annular cavity in a preset order, a plurality of jet tubes are arranged on the mounting plate, a plurality of the jet tubes are connected with the annular cavity, and a plurality of the jet tubes are arranged in a spiral shape around the axis of the annular cavity. The flame tube of the present application effectively improves the uniform distribution capability of the oil-gas mixed fluid, improves the outlet temperature field of the combustion chamber, and improves the combustion efficiency.

The utility model relates to the technical field of waste gas combustors, in particular to a waste gas combustor which comprises a first protective shell, a second protective shell is sleeved on the outer wall of the first protective shell close to the left end, a natural gas pipeline is arranged in the middle of the right end of the first protective shell, and a central cooling gas pipe is arranged in the middle of the right end of the natural gas pipeline. A flame monitor communicated with the interior is arranged at the right end, close to the top, of the first protective shell, an ever-burning fire pipeline is arranged at the right end, close to the natural gas pipeline, of the first protective shell, and a second-stage waste gas channel is formed in the outer wall, close to the top, of the first protective shell; according to the waste gas burner, the first protection shell and the second protection shell are arranged, stable protection cooperation is conducted on the interior, and under cooperation of the natural gas pipeline and the center cooling gas pipe, natural gas can be continuously introduced, and meanwhile cooling cooperation of the end of the natural gas pipeline is conducted; combustion-supporting air is uniformly and stably introduced for combustion-supporting cooperation through a three-stage cyclone, and waste gas is ignited under the cooperation of a long open fire pipeline with an ignition port.

The invention relates to the technical field of diesel generators, in particular to an ultra-light diesel generator set and a working method thereof, and the ultra-light diesel generator set comprises an oil tank, an oil pump, an electronic control unit, a starter set, an engine and a generator connected to the output end of the engine; the oil inlet end of the oil pump extends into the bottom of the oil tank inner cavity; the other end of the oil pump is connected with an oil inlet pipe; an oil injector is connected between the oil inlet pipe and the engine; a pulse cracker is connected in the oil sprayer; the starter unit, the generator and the oil pump are all electrically connected to the electronic control unit. And a plasma ignition head is arranged on the engine. When the device is used, the device is high in low-temperature adaptability, high in starting and response speed, high in efficiency, high in reliability and more convenient to carry.

The multi-head pot furnace with the windproof effect comprises a furnace platform and a plurality of cooking benches, a turning cover is arranged on the upper side of the furnace platform, connecting shafts are arranged in the two ends of the turning cover respectively, a first shaft end is arranged at one end of each connecting shaft, and a second shaft end is arranged at the end, away from the first shaft end, of each connecting shaft. A shaft hole allowing the second shaft end to penetrate through is formed in the turning cover, a wrapping cover wrapping the second shaft end is fixed to the outer wall of the turning cover, a reset coil spring arranged on the second shaft end in a sleeving mode is arranged in the wrapping cover, and long-strip-shaped holes are formed in the two ends of the turning cover. One side of the wind shielding roller shutter is connected with the connecting shaft, the other end of the wind shielding roller shutter is used for penetrating out of the long-strip-shaped hole, a fixing rod is arranged at the end, away from the connecting shaft, of the wind shielding roller shutter, and a first connecting piece used for detachably connecting the fixing rod to the coil base is arranged between the fixing rod and the coil base; a second connecting piece used for detachably connecting the turning cover which is turned upwards to the coil base is further arranged between the turning cover and the coil base.

The utility model relates to the field of combustor equipment, and discloses an air return type combustor which comprises a supporting base, a combustion chamber is fixedly connected to the top of the supporting base, a connecting air box is fixedly connected to one side of the combustion chamber, a combustor is fixedly connected to the other side of the connecting air box, and a combustor body is fixedly connected into the combustor. Air blowers are fixedly connected to the two sides of the combustor, the air blowers are fixedly connected to the side, away from the combustion chamber, of the connecting air bellow, a connecting plate is fixedly connected to the lower side face of the combustor, a combustor controller is fixedly connected to the connecting plate, and an air return device shell is fixed to the other side of the combustion chamber. The air return type combustor is arranged on the side, away from the combustion chamber, of the air return device shell and recovers and utilizes waste gas generated in the combustion process, airflow distribution in the combustion chamber can be optimized through the air return type combustor, flames are more stable and uniform, and the combustion efficiency and the energy utilization rate are improved.

This utility model discloses a porous media regenerative low-NOx burner nozzle, including a wind box. A tube is disposed on the front side of the wind box, and the back side of the tube is fixedly connected to the front side of the wind box via a first bolt. A heat-conducting pipe is disposed on the outer arc surface of the tube, and a heat-conducting grid is disposed at the bottom of the front side of the wind box. Both ends of the heat-conducting pipe are fixedly connected to the front side of the heat-conducting grid. This utility model provides a porous media regenerative low-NOx burner nozzle that effectively utilizes the high-temperature flue gas generated during combustion to preheat the air entering the wind box. The preheated air temperature is significantly increased, promoting fuel-air mixing and combustion efficiency, and avoiding incomplete combustion caused by low inlet air temperature. This not only improves thermal energy utilization and reduces fuel consumption but also helps reduce the generation of nitrogen oxides, meeting the environmental protection requirements of energy conservation and emission reduction, and is suitable for high-temperature equipment such as industrial furnaces and kilns.

The invention discloses a vortex control stabilizer, comprising an air inlet nozzle, an oil injection pipe, an evaporation pipe, a U-shaped gradually expanding blunt body and a stabilizer wall surface, wherein the U-shaped gradually expanding blunt body is formed of a closed cavity by an arc-shaped front wall, a gradually expanding side wall and a rear end wall, the evaporation pipe is connected to the rear end wall, the evaporation pipe is provided with a plurality of nozzles leading to the area between the stabilizer wall surfaces, the air inlet nozzle is provided with a plurality of nozzles and is discretely arranged along the circumference of the vortex control stabilizer, the air inlet nozzle extends from the arc-shaped front wall into the closed cavity and is connected to the evaporation pipe, the oil injection pipe is connected to the air inlet nozzle from the side of the air inlet nozzle, the stabilizer wall surface comprises an inner wall surface and an outer wall surface, the inner wall surface and the outer wall surface are respectively located at the inner and outer edges of the rear end wall, an air inlet gap is left between the inner wall surface and the inner edge of the rear end wall, the inner wall surface is provided with a guide plate extending to the outer wall surface, an air inlet gap is formed between the guide plate and the rear end wall and is connected to the air inlet gap. The invention can achieve stable and efficient combustion in a wide range of working conditions, and improve the ignition and flameout performance and combustion efficiency.

The utility model discloses a hydrogen burner for a decomposing furnace in a cement clinker production line, and relates to the technical field of hydrogen burners, the hydrogen burner comprises a flange interface, a plurality of central channels, an inner ring channel and an outer ring channel, the plurality of central channels are uniformly distributed at the center of the flange interface, hydrogen in the central channels is sprayed out at an angle close to the outside of 2 degrees, and the inner ring channel is communicated with the outer ring channel. The flow speed is 280-320 m / s, backflow is formed, and the sprayed hydrogen accounts for + / -10% of the total hydrogen amount; the multiple inner ring channels are evenly distributed on the periphery of the center channel, hydrogen in the inner ring channels is annularly sprayed out at the angle close to the inner 15 degrees, the flow speed ranges from 280 m / s to 320 m / s, the thickness of flames can be adjusted, and the sprayed hydrogen accounts for + / -25% of the total hydrogen amount. The outer ring channels are evenly distributed on the periphery of the inner ring channel, hydrogen in the outer ring channels flows out in a direct injection mode, the flow speed ranges from 300 m / s to 350 m / s, the flame length can be adjusted, and the injected hydrogen accounts for + / -65% of the total hydrogen amount. The utility model has the characteristics of reasonable scheme, ingenious structure and convenience in use.