461results about How to "Promote combustion" patented technology

The invention provides a boiler master control system, a pressure adjusting method, electronic equipment and a storage medium. The system comprises a signal acquisition module, a differential control module, a pressure deviation adjusting loop and an instruction dynamic compensation loop. Compared with the prior art, according to the embodiment of the invention, the differential action intensity is calculated by utilizing the load change signal, the control valve action signal and the main steam pressure signal, so that the first coal quantity adjustment signal is accurately generated. Load change and pressure fluctuation can be responded in time, it is ensured that the coal quantity is adjusted more accurately, and boiler efficiency fluctuation or fuel waste caused by too much or too little coal quantity is avoided. The pressure deviation adjusting loop performs adjustment based on the deviation of the main steam pressure signal, so that the stability of coal quantity control is further improved; the instruction dynamic compensation loop can effectively predict and adjust the coal quantity according to the dynamic change of the boiler load, the parameters of the unit heat energy storage and the boiler capacity input rate so as to adapt to the dynamic change of the boiler load and capacity.

The invention provides a multi-cavity scramjet engine combustion chamber and a control method thereof. The combustion chamber is simple in structure, capable of adapting to different equivalence ratio ranges and different flight heights, low in resistance, high in combustion performance, low in thermal load of the wall face of the combustion chamber, convenient to maintain and capable of facilitating aircraft-engine integrated design. The combustion chamber comprises an isolation section, a first concave cavity group, a second concave cavity group, a third concave cavity group, an injection module and a combustion chamber expansion section, each concave cavity group is provided with two concave cavities which are oppositely arranged up and down; the isolation section is a first square tube and is connected with the first concave cavity group; the first concave cavity group is connected with the second group of concave cavities through a second square tube; the second group of concave cavities is connected with a third concave cavity group through a third square pipe; a combustion chamber expansion section is connected behind the third concave cavity group; the injection unit comprises a front injection device and a rear injection device; front injection devices are oppositely arranged on the upper wall surface and the lower wall surface of the second square pipe; rear injection devices are oppositely arranged on the upper and lower wall surfaces of the third square pipe.

The invention discloses an ablation-resistant long-fiber reinforced nylon material for a battery pack, and relates to the technical field of nylon materials, the ablation-resistant long-fiber reinforced nylon material comprises the following raw material components by weight: 60-80 parts of nylon resin powder, 30-50 parts of a long-fiber reinforced material, 10-18 parts of aluminum diethylhypophosphite master batch, 8-15 parts of bromine-antimony composite master batch, 3-7 parts of montmorillonite, 12-20 parts of aluminum hydroxide, and 2-6 parts of nano-silica. The composite material is prepared from the following components in parts by weight: 1-4 parts of carbon nanotubes, 0.5-1.2 parts of an antioxidant I, 0.3-0.8 part of a lubricant I, 2-5 parts of a compatilizer, 0.1-0.4 part of a nucleating agent and 0.2-0.6 part of an anti-ultraviolet agent. By adding the diethyl aluminum hypophosphite master batch, the flame retardant property of the nylon material is improved, the processability of the nylon material is improved, the ablation resistance of the nylon material is improved, and the problems of insufficient flame retardant property, poor processability and poor ablation resistance of the nylon material can be solved.

The invention discloses a turbulent burner for mixed combustion of ammonia and coal. The turbulent burner comprises a first cylinder, a second cylinder and a third cylinder, a pulverized coal airflow channel is formed in an inner cavity of the first cylinder; an ammonia gas channel is formed between the first cylinder and the second cylinder; a secondary air channel is formed between the second cylinder and the third cylinder; an inner cavity of the first cylinder is divided into four sections from front to back, namely a first steady flow section, a divergent section, a second steady flow section and a tapered section in sequence, the first steady flow section and the second steady flow section are cylindrical, the divergent section and the tapered section are circular truncated cone-shaped, and the diameter of the front end of the divergent section is large; the front end of the reducing section is small in diameter; a bluff body with a cylindrical front end and a circular truncated cone rear end is arranged in the first cylinder, one part of the bluff body rear end is located inside and outside the divergent section, and the other part is located in the first steady flow section; rotational flow blades are connected between the inner wall of the first cylinder and the outer wall of the blunt body; a plurality of guide plates are evenly distributed at the front end of the second cylinder in the circumferential direction. The method is suitable for the working condition with the small ammonia mixing proportion, and the transition effect of the coal-fired boiler from pure coal combustion to high-proportion ammonia-doped combustion is mainly achieved.

The invention relates to the technical field of catalysts, in particular to a catalyst for fire coal and a preparation process thereof, and the catalyst comprises the following materials in parts by weight: 2-8% of rare earth nitrate, 5-18% of alkaline earth metal salt, 2-5% of alkali metal salt, 0.5-1% of copper-manganese composite oxide, 0.2-1.5% of transition metal salt, 0.1-0.3% of nonionic surfactant, 0.05-0.15% of organosilicon compound and the balance of water. The coal-fired catalyst is specially designed for a power plant, has excellent permeation and adsorption performance, solves the problem that the coal-fired catalyst is difficult to uniformly disperse in blocky coal, promotes full combustion of the coal in the power plant, improves the combustion rate and the burn-off rate, eliminates solid hazardous wastes from the preparation raw materials, ensures safety and environmental protection, and is suitable for industrial production. The power plant can be assisted to save coal resources, emission of harmful pollutants can be reduced from the source, and remarkable economic benefits and environmental benefits are brought to the power plant.

The invention belongs to the technical field of heating furnaces, and particularly relates to an oxygen-enriched combustion system and method for a coal gas single heat storage type heating furnace. Comprising an oxygen pressure regulating branch, a first heating section oxygen lance oxygen injection branch and a main pipe oxygen enrichment branch, the oxygen pressure regulating branch is provided with a pressure transmitter and a temperature transmitter, an oxygen source is communicated with the pressure transmitter and the temperature transmitter through a pipeline, and oxygen flows into the first heating section oxygen lance oxygen injection branch and the main pipe oxygen enrichment branch after being subjected to pressure regulation through a pressure valve. A flow control valve is arranged on the first heating section oxygen lance oxygen injection branch, oxygen is fed into the heating furnace, and the main pipe oxygen enrichment branch feeds enriched oxygen into the main pipe through an enriched oxygen distributor. Flexible switching of different oxygen enrichment modes of the heating furnace is achieved, the burner in the oxygen lance oxygen injection branch of the first heating section is not reversed, total-oxygen combustion of the burner is achieved, under the oxygen enrichment branch of the main pipe, oxygen is conveyed to the main pipe through the oxygen enrichment distributor through the other branch to be mixed with combustion air, and total-furnace oxygen enrichment combustion is achieved.

The invention discloses a high-efficiency coal-saving agent for cement clinker firing and a preparation process and application thereof. The coal saving agent comprises the following components in parts by weight: 10-20 parts of a penetrating agent, 7-15 parts of a dispersing agent, 20-25 parts of a catalyst, 9-13 parts of a swelling agent, 30-48 parts of a heat supply agent and 60-70 parts of hydrogen peroxide. Wherein the heat supply agent is powder formed by solidifying aluminum powder, iron oxide powder, magnesium powder and glass powder, and the mass ratio of the aluminum powder to the iron oxide powder is 1: (4-7). The magnesium powder accounts for 12-20% of the total mass of the aluminum powder and the iron oxide powder. The glass powder accounts for 14-16% of the total mass of the aluminum powder and the iron oxide powder. The coal saving agent not only can effectively reduce the use amount of coal, but also has a sulfur fixation effect, so that the emission of sulfur oxide gas is reduced.

The invention discloses a fuel distribution control system of a CFB (circulating fluid bed) boiler, which belongs to the technical field of fuel distribution of CFB boilers and comprises a comburent condition analysis module, a load prediction module, a fuel supply and metering module, a combustion environment monitoring module and an abnormity monitoring module. The comburent condition analysis module, the load prediction module, the fuel supply and metering module, the combustion environment monitoring module and the abnormity monitoring module are in communication connection in sequence; the comburent condition analysis module is used for analyzing combustion requirements and analyzing required combustion conditions; according to the fuel distribution control system of the CFB boiler, combustion requirements can be clearly known by analyzing comburent conditions, targeted combustion standards are set according to the combustion requirements, and meanwhile the functions that load prediction is used for planning the fuel consumption in advance and monitoring the combustion condition in real time to adjust the fuel consumption are achieved.

The invention relates to a spray combustion test device for metal-based gel fuel. The spray combustion test device comprises a combustion unit, a gel supply unit, a premixing gas unit, a fluidizing gas unit, a cooling unit and a data acquisition unit, the combustion unit comprises a furnace body, a spray generator and a combustion observation cover; the combustion observation cover and the furnace body are coaxially arranged in a mutually communicated mode, and the combustion observation cover is located on the upper side of the furnace body. The spray generator is connected with the bottom of the furnace body, and the spray generator and the furnace body coaxially extend into the furnace body; the gas premixing unit is connected with the furnace body; the gel supply unit and the fluidizing gas unit are respectively connected with the spray generator; the cooling unit is respectively connected with the spray generator and the data acquisition unit; and the data acquisition unit is connected with the combustion observation cover. Good atomization of gel can be achieved, flame morphology, smoke, spectrums and condensed phase particles are directly obtained, and high-temperature fuel gas heat tracing flow created by the device is closer to a high-temperature heat environment in an actual engine combustion chamber.

The invention discloses a production method of ultralow FeO sintered ore, and belongs to the technical field of ferrous metallurgy. The method comprises the following steps: dividing fuel into a fuel I and a fuel II, and mixing and granulating the fuel I and a sintering raw material to obtain a sintered material; distributing the sintered material to a sintering machine, and then distributing the fuel II on the surface of the sintered material; igniting, preserving heat, sintering and cooling; in the sintering process, an oxygen-enriched gas medium is blown to the surface of the sintered material; in the cooling process, air draft cooling is conducted on a sintering machine, and then materials are discharged into a circular cooler to be cooled. According to the method, the oxygen potential of a sintering material layer is improved by reducing the proportion of sintering fuel, so that the FeO oxidation efficiency of the sintered ore is improved, and ultralow FeO < lt > can be produced; by means of the method, the solid fuel consumption of sintering and the FeO content of the sintering ore can be greatly reduced, the reducibility of the sintering ore can be improved, the coke ratio of a blast furnace can be reduced, and therefore the overall fuel consumption level of the ironmaking process is reduced.

The invention relates to a vehicle-mounted high-pressure liquid ammonia supply and liquid return control system and an engine, the vehicle-mounted high-pressure liquid ammonia supply and liquid return control system comprises a liquid ammonia tank, a liquid ammonia pump is mounted at a liquid outlet of the liquid ammonia tank, the output end of the liquid ammonia pump is communicated with a high-pressure plunger pump through a liquid inlet pipeline, the first output end of the high-pressure plunger pump is communicated with a high-pressure liquid ammonia rail, and the second output end of the high-pressure plunger pump is communicated with a low-pressure liquid ammonia rail; the output end II of the high-pressure plunger pump is communicated with a liquid return pipeline; the liquid return pipeline is communicated with a liquid return opening of the liquid ammonia tank; the first-stage liquid inlet heat exchanger is mounted on the liquid inlet pipeline; the liquid return heat exchanger is mounted on the liquid return pipeline; and the vehicle-mounted water cooling machine is thermally coupled with the primary liquid inlet heat exchanger and the liquid return heat exchanger. In-cylinder direct injection is adopted, the combustion process is optimized, and the combustion efficiency is improved. Heat exchange temperature control is carried out during liquid feeding, it is guaranteed that ammonia supply is in a liquid state, the temperature of liquid ammonia is prevented from rising to form a gas-liquid mixed phase during liquid returning, and a stable and reliable liquid ammonia supply and liquid returning system is provided for an engine.

The invention discloses a multistage self-adaptive enhanced mixing device for a solid fuel ramjet engine, which belongs to the technical field of solid fuel ramjet engines and comprises a front flange, a rear flange, an afterburning chamber barrel, a mixing partition plate, a heat insulating layer, a pressure measuring seat and a temperature measuring seat. The front flange and the rear flange are welded with the afterburning chamber barrel, a water pressure test is carried out after welding is completed, the mixing partition plates are bonded to the inner wall of the afterburning chamber barrel through high-temperature-resistant glue, and the mixing partition plates are distributed in a multi-stage mode, are separated through a heat insulation layer and are bonded through the high-temperature-resistant glue. In order to verify the effect of the multi-stage self-adaptive enhanced mixing device for the solid fuel ramjet engine, a pressure measuring point and a temperature measuring point are arranged on an afterburning chamber barrel and a mixing partition plate; according to the multi-stage self-adaptive enhanced mixing device, the combustion efficiency of a solid fuel ramjet can be remarkably improved, and the efficiency is further improved along with the increase of the number of the mixing partition plates.

The invention relates to a pusher capable of recycling percolate, a percolate recycling device and a waste incineration device.The pusher comprises a rack, a material pushing trolley, a driving device, a first percolate channel, a second percolate channel, a third percolate channel and an inclination angle adjusting device.The material pushing trolley is arranged on the rack in a sliding mode, and the driving device is in transmission connection with the material pushing trolley; the material pushing trolley comprises an upper-layer trolley body and a lower-layer trolley body, the first percolate channel penetrates through the rack, the second percolate channel penetrates through the lower-layer trolley body and the rack, the third percolate channel penetrates through the upper-layer trolley body and the rack, the first percolate channel, the second percolate channel and the third percolate channel are sequentially arranged, and the inclination angle adjusting device is used for adjusting the included angle between the rack and the horizontal plane. According to the pusher, leachate recovery can be increased, the water content of garbage entering a furnace is reduced, the garbage can be dried more quickly, the combustion efficiency of a fire grate is improved, the conditions that leachate in a slag hopper of a drying section of the fire grate overflows and the interior of an ash hopper is coked are avoided, and interference to operation and maintenance is reduced.

The invention provides a control device for an intercooling bypass and an EGR cooler bypass in an engine, and belongs to the technical field of engines, the control device comprises a multi-way butterfly valve provided with at least three airflow channels, and the input end of the multi-way butterfly valve is communicated with a supercharger; the EGR cooler is arranged on the EGR cooling branch, one end of the EGR cooling branch communicates with the EGR loop, and the other end of the EGR cooling branch communicates with the intake manifold; one end of the EGR bypass branch communicates with the EGR loop through a first airflow channel of the multi-way butterfly valve, and the other end of the EGR bypass branch communicates with the EGR cooling branch and is located between the EGR cooler and the intake manifold; one end of the inter-cooling bypass branch is communicated with the intake manifold, and the other end of the inter-cooling bypass branch is communicated with a second airflow channel of the multi-way butterfly valve; and one end of the intercooler communicates with the intake manifold, and the other end of the intercooler communicates with the third airflow channel of the multi-way butterfly valve. By additionally arranging the multi-way butterfly valve, the purpose of adjusting the cooling strategies of the EGR system and the intercooling system at the same time is achieved.

The invention relates to the technical field of mixed combustion of hydrogen, and discloses a coal-fired and hydrogen mixed combustion boiler system and a combustion method for mixed combustion of hydrogen in a coal-fired boiler, the coal-fired and hydrogen mixed combustion boiler system comprises a boiler body, a pulverized coal combustion unit, a hydrogen combustion unit, a first air pipe assembly and a second air pipe assembly; a main combustion area is arranged in the boiler body; the pulverized coal combustion unit comprises a first combustion assembly, one end of the first combustion assembly is connected with the main combustion area, and the two ends of the first combustion assembly are connected with a first air pipe assembly and a second air pipe assembly correspondingly. The hydrogen combustion unit is arranged below the pulverized coal combustion unit and comprises a hydrogen pipeline, a mixing chamber and a second combustion assembly, one end of the second combustion assembly is connected with the main combustion area, the other end of the second combustion assembly is connected with the mixing chamber, and the two ends of the mixing chamber are connected with the hydrogen pipeline and the second air pipe assembly respectively.

The invention provides a hydrogen-ammonia mixed low-nitrogen combustor, and belongs to the technical field of combustors. The technical problem of gas combustion with hydrogen and ammonia serving as fuel at present is solved, and the problems that due to the fact that the ammonia combustion reaction activity is poor, the hydrogen combustion speed is high, a nozzle is burnt by tempering, and the NOx emission concentration is high are solved. The device comprises a hydrogen introduction pipe, an ammonia gas introduction pipe, a fuel gas mixer, an annular header, ammonia gas branch pipes and ammonia gas nozzles. The hydrogen introducing pipe comprises a central hydrogen pipe and a combustion-supporting hydrogen pipe, the outlet end of the central hydrogen pipe is located in the annular collecting box, the input end of the combustion-supporting hydrogen pipe is connected with the central hydrogen pipe, the output end of the combustion-supporting hydrogen pipe is connected with the fuel gas mixer, and the output end of the ammonia introducing pipe is connected with the fuel gas mixer; the output end of the gas mixer is connected with an annular header, the annular header is connected with a plurality of ammonia branch pipes, the ammonia branch pipes are annularly arranged, and ammonia nozzles are arranged at the outlet ends of the ammonia branch pipes. The device is mainly used for hydrogen-ammonia mixed combustion.

The invention belongs to the field of automobile engine energy saving, and particularly relates to an engine energy saving device and method for producing hydrogen through ultrasonic water mist and mineral particles, the device comprises a special water storage tank, an ultrasonic water mist generator and micro hydrogen production mineral particles, and the special water storage tank is divided into an ultrasonic water mist generation chamber and a mineral particle hydrogen production chamber through a permeation partition plate; the ultrasonic water mist generator is placed at the position 3 mm-5 mm below the liquid level of the ultrasonic water mist generating chamber, and water is atomized through external power supply. Micro-hydrogen production mineral particles are placed at the bottom of the mineral particle hydrogen production chamber and react with water to generate hydrogen, part of hydrogen is dissolved in water, and part of hydrogen is stored in the gas storage chamber above the liquid level. An air outlet is formed in the top of the special water storage tank and connected with an engine air inlet pipe, water mist and hydrogen enter an air cylinder along with engine suction to participate in acting, and therefore the redundant fuel injection amount is eliminated, and heat transfer loss in the cylinder is reduced. The heat efficiency of the automobile engine is improved, knocking is restrained, the incomplete combustion phenomenon is reduced, and then fuel consumption and harmful gas emission are reduced.

The utility model discloses a novel wooden activated carbon production device. The novel wooden activated carbon production device comprises a feeding bin, a mixing and extruding mechanism, a liquid inlet mechanism and a driving mechanism, the material stirring and extruding mechanism comprises a material conveying barrel, a rotating shaft, a plurality of stirring rods, a plurality of material pushing blades and a spiral blade; the feeding bin is communicated with an inner cavity at one end of the conveying barrel; the rotating shaft is rotationally connected with the conveying barrel, and the rotating shaft is driven by a driving mechanism to rotate; the stirring rods are fixed on the rotating shaft close to one side of the feeding bin at intervals, and the spiral blades are fixed on the rotating shaft far away from one side of the feeding bin; a liquid conveying hole is formed in the rotating shaft; a liquid guide hole communicated with the liquid conveying hole is formed in the stirring rod, and a plurality of liquid spraying holes communicated with the liquid guide hole are formed in the side wall of the stirring rod; the liquid inlet mechanism comprises a liquid inlet pipe and a rotary connector; one end of the liquid inlet pipe is communicated with the binder, and the other end of the liquid inlet pipe is communicated with the liquid conveying hole through the rotary connector; and the material pushing blades are fixed on the rotating shaft between the adjacent stirring rods.

The invention discloses an adjusting system for controlling the rotating speed of an automobile engine, and the system is characterized in that the system comprises a data collection module which collects the conventional operation parameters of the automobile engine in real time, the conventional operation parameters comprise the rotating speed, the torque, the air inflow, the oil temperature and the oil pressure, and also collects the acceleration, the gradient information, the external environment temperature and humidity of a vehicle and the driving behavior data of a driver; such as accelerator pedal depth change rate and brake frequency; the data analysis module is connected with the data acquisition module and is used for deeply mining a relationship and a potential rule in data by applying a long short-term memory (LSTM) network algorithm in deep learning and a fusion analysis method based on a physical model, identifying a real-time running state and a future change trend of the engine and intelligently diagnosing potential fault hidden dangers; the fuel injection amount and the ignition time can reach the optimal state through accurate rotation speed adjustment, fuel consumption is greatly reduced, fuel economy is improved, and expenditure is saved for users.

The invention discloses a furnace body structure for coke strength detection, and relates to the field of coke strength detection.The furnace body structure comprises a reaction furnace and a reaction tube fixedly arranged at the upper end of the reaction furnace and further comprises a filter screen, and the peripheral side of the filter screen is fixedly connected with the inner side wall of the lower end of the reaction tube; the upper end of the rotating shaft is rotationally connected with the reaction tube through a fixing plate, the lower end of the rotating shaft is rotationally connected with the filter screen, and the lower end of the rotating shaft penetrates through the filter screen and is arranged at the upper end of the filter screen; a fan rotating shaft penetrates through the lower end of the filter screen and is fixedly connected; the material receiving plate is fixedly arranged at the joint of the reaction tube and the reaction furnace, and air holes are formed in the upper end of the material receiving plate in the circumferential direction; the dredging assembly is arranged at the upper end of the filter screen and used for dredging the filter screen; the cleaning assembly is arranged at the lower end of the filter screen and used for collecting flying dust; the device has the advantage that the problem of influence on normal use of the device due to blockage of the reaction tube by flying dust generated in the reaction process of coke is solved.

The invention relates to the technical field of combustion testing, in particular to a testing device for studying the combustion characteristic of nanofluid fuel. The device comprises an operation table, wherein a convenient combustion adjusting mechanism and a waste gas treatment assembly are mounted on the upper surface of the operation table; the convenient combustion adjusting mechanism comprises a storage tank and a combustion chamber, a pump body is arranged between the storage tank and the combustion chamber, a connecting pipeline is connected between the storage tank and the pump body, a pressure adjusting assembly is arranged between the pump body and the combustion chamber, and an outlet of the combustion chamber is connected with a waste gas treatment assembly; a combustion component and an igniter are arranged on the top of the inner side of the combustion chamber. According to the pressure adjusting assembly, fuel flowing and gas supply can be effectively controlled, the combustion process is stable, accurate test conditions are achieved, the reliability of test results is improved, and fuel performance can be deeply analyzed conveniently.

The invention relates to the technical field of new materials, and discloses a flame-retardant functionalized carbon nanotube modified polyethylene material, which is characterized in that organic functional groups and starch macromolecules are introduced to the surfaces of carbon nanotubes, so that the intermolecular distance of the carbon nanotubes is increased, the agglomeration phenomenon of the carbon nanotubes is inhibited, and the flame-retardant functionalized carbon nanotube modified polyethylene material is prepared. According to the present invention, the carbon nano-tubes are introduced into the polyethylene, such that the carbon nano-tubes can be easily dispersed, the carbon nano-tubes can provide the good mechanical property enhancing effect on the polyethylene, the phosphorus element is introduced on the surfaces of the carbon nano-tubes, the starch having the excellent char forming property is introduced, and the flame-retardant phosphoric acid, the flame-retardant polyphosphoric acid and the like can be formed during combustion so as to promote the char forming of the starch and the polyethylene; according to the present invention, the carbon layer with the barrier property is rapidly formed, and the barrier carbon layer can isolate oxygen and heat so as to prevent the further combustion of the polyethylene material, such that the flame retardation self-extinguishing effect is provided so as to obtain the polyethylene material with characteristics of good flame retardation and good mechanical property.

The invention discloses a camshaft phase correction method and device and a vehicle. According to the camshaft phase correction method, working data of a calibration prototype under a preset working condition are obtained in advance, and the camshaft phase of the calibration prototype under the preset working condition is obtained according to the working data of the calibration prototype under the preset working condition; when the to-be-tested engine meets the triggering condition, the camshaft phase of the to-be-tested engine under the preset working condition is obtained according to the working data of the to-be-tested engine under the preset working condition; calculating an actual phase deviation value between the camshaft phase of the to-be-measured engine under the preset working condition and the camshaft phase of the calibration model machine under the preset working condition; judging whether a difference value between the actual phase deviation value and an initial deviation value of the to-be-detected engine is greater than a preset threshold value or not; and if not, correcting the operation of the to-be-tested engine according to the actual phase deviation value when the to-be-tested engine operates next time. Intake and exhaust amount deviation caused by camshaft phase deviation of the engine can be reduced, and the engine can achieve the optimal combustion effect.

The invention belongs to the technical field of engines, and discloses a rotary detonation combustion chamber which comprises a combustion chamber body, the combustion chamber body comprises a combustion chamber shell composed of an inner sleeve structure and an outer sleeve structure, a fluid channel is formed in the combustion chamber shell, and the inlet end of the fluid channel is a combustion chamber air inlet; the fluid channel comprises a combustion chamber throat section, a first expansion section, a U-shaped groove section, a second expansion section and a combustion chamber downstream straight section which are sequentially arranged. One end of the combustion chamber throat section communicates with the combustion chamber air inlet. And the U-shaped groove section comprises a U-shaped groove fillet section and a U-shaped groove straightway section which are arranged in sequence. The whole U-shaped groove fillet section is of a topological fluid diode structure, and one end, close to the first expansion section, of the topological fluid diode structure is of an arc-shaped structure. The topological fluid diode structure provides a new view angle and a new solution for optimization of the combustion chamber, and design and development of the more efficient and more stable combustion chamber are promoted.

The invention discloses liquid hydrocarbon fuel combustion equipment and a supercritical carbon dioxide circulation system, the liquid hydrocarbon fuel combustion equipment comprises a nozzle, a combustion chamber and a rotational flow assembly, the rotational flow assembly comprises a first-stage pipe, a second-stage pipe, a first-stage cyclone, a second-stage cyclone and a third-stage cyclone, and the first-stage pipe and the second-stage pipe are both scaling venturi pipes. The supercritical carbon dioxide circulation system comprises fuel supply equipment, pure oxygen supply equipment and a circulation assembly, mixed gas of carbon dioxide and water vapor generated by combustion of the liquid hydrocarbon fuel combustion equipment is circulated through the circulation assembly to obtain high-purity carbon dioxide, and the high-purity carbon dioxide is divided into three paths to flow into a first-stage swirler, a second-stage swirler and a third-stage swirler; the carbon dioxide flowing into the second-stage cyclone is uniformly mixed with oxygen from pure oxygen supply equipment before flowing into the second-stage cyclone. The combustion ignition delay period and the mixing time can be prolonged, a standing vortex high-temperature rapid reaction area is formed, the problem that the combustion speed is low in the concentrated carbon dioxide atmosphere is solved, and the supercritical carbon dioxide circulation efficiency is improved.

The invention provides a dual-fuel ring vortex combustor which comprises an annular structure formed by splicing a plurality of combustors, each combustor comprises a hydrogen pipeline, a gas collection tank and a U-shaped flame tube, at least one hydrogen hole, at least one kerosene nozzle and at least one air hole are formed in each U-shaped flame tube, the hydrogen holes are covered with the gas collection tanks, and the kerosene nozzles are arranged on the gas collection tanks. The hydrogen pipeline is communicated with the hydrogen hole through the gas collection tank. According to the dual-fuel ring vortex combustor, the ignition performance can be improved, combustion at the ignition nozzle can be enhanced, atomization of kerosene is further promoted, and the combustion efficiency and stable flame flowing can be improved; kerosene can be in full contact with hydrogen gas, so that more uniform mixing of double fuels is realized; and the guide plate is cooled, so that the ablation resistance of the high-temperature alloy of the guide plate is improved, and the service life of the high-temperature alloy of the guide plate is prolonged.

The invention belongs to the technical field of fluid magnetization, and particularly relates to a fluid magnetization treatment method and system.The fluid magnetization treatment system comprises a controller and a processor, the processor comprises a shell, two connectors are installed on one side of the shell, an adapter is installed on the other side of the shell, a coil bin is formed in the inner wall of the shell, and a coil is arranged in the coil bin; the coil is electrically connected with a controller through an adapter, a U-shaped oil way pipe is installed in the shell, and fuel flows in the oil way pipe. Fuel oil is magnetized through an alternating magnetic field, fuel oil molecules are attracted to vibrate along with alternating of the magnetic field, the internal energy of the fuel oil molecules is improved, the fuel oil molecules are in a quasi-excitation state, and therefore the combustion efficiency and the combustion degree of the fuel oil are improved, meanwhile, the distance between the fuel oil molecules in high-frequency vibration is increased, atomization is more sufficient during atomization, combustion is facilitated, and the fuel oil is more environmentally friendly. And the combustion efficiency of the fuel is further improved.

The invention relates to the technical field of blast furnace combustion optimization, in particular to a blast furnace pulverized coal combustion efficiency optimization method and system based on deep learning, which not only can significantly improve the blast furnace pulverized coal combustion efficiency, but also can enhance the economic benefit and environmental protection performance of the whole steel production. The method comprises the following steps: acquiring blast furnace combustion condition monitoring data and surrounding environment condition monitoring data in real time; performing feature extraction on the blast furnace combustion condition monitoring data and the surrounding environment condition monitoring data by using a pre-trained pulverized coal combustion efficiency influence feature extraction model to obtain a pulverized coal combustion efficiency influence feature set; acquiring combined pulverized coal injection ratio data participating in combustion in the blast furnace in real time, wherein the combined pulverized coal injection ratio data comprises pulverized coal types and proportions thereof; and based on the combined pulverized coal injection ratio data, respectively calling pulverized coal combustion efficiency influence analysis models corresponding to the pulverized coal types from the pulverized coal model database.

The utility model discloses a hazardous waste safety incineration device which comprises an incinerator and a conveying pipe obliquely fixed to the upper portion of one side of the incinerator, an inner cylinder is fixedly installed in the conveying pipe, filtering holes are formed in the surface of the inner cylinder, and a spiral conveying shaft is rotationally connected to the interior of the inner cylinder. A first motor is installed at the end, away from the incinerator, of the conveying pipe, the output end of the first motor is fixedly connected with one end of the spiral conveying shaft, an adding hopper is fixedly installed at the end, close to the first motor, of the surface of the conveying pipe, and the adding hopper communicates with the inner barrel; stirring rods are fixedly installed on the lower portion of the surface of the rotating rod at equal intervals, and a second motor connected with the top of the rotating rod is installed on the top of the incinerator. The incineration device has a water separation function and a dispersing and stirring function, can extrude the added hazardous wastes to realize water separation operation, and can scatter, combust and stir the extruded and compacted hazardous wastes, so that the combustion efficiency is ensured.

The invention belongs to the field of aero-engines, and particularly relates to a flame tube double-layer wall face injection structure and an aero-gas turbine engine, the flame tube double-layer wall face injection structure comprises a flame tube, the flame tube comprises a gas inlet end and a gas outlet end, a fuel cavity is formed in the tube wall of the flame tube in a surrounding mode, and the fuel cavity is connected with a fuel inlet pipeline; a plurality of premixing pipes are further arranged on the wall face in a surrounding mode, the premixing pipes are located in the fuel cavity, fuel nozzles are formed in the premixing pipes, and fuel in the fuel cavity enters the premixing pipes through the fuel nozzles; one end of the premixing pipe is an air inlet, and the other end of the premixing pipe is a micro-premixing outlet; the air inlet penetrates through the outer layer wall of the flame tube, and the micro-premixing outlet penetrates through the wall face of the flame tube. The premixing section is arranged on the side wall of the flame tube, so that the size and the weight of the whole engine are reduced, and the combustor is more suitable for an aero-engine.