953results about "Indirect carbon-dioxide mitigation" patented technology

The invention discloses an air pre-heater cold end multi-fault diagnosis method and device based on a panorama and a dynamic intelligent model, and relates to the technical field of thermal power plant auxiliary engine fault diagnosis, and the method comprises the steps: constructing a panorama monitoring image of an air pre-heater rotor, and dividing the panorama monitoring image into a plurality of independent monitoring regions; extracting color channel information of each monitoring area, and dynamically updating a threshold range of each color channel based on a multi-trigger condition; obtaining morphological edge contour features and color channel deviation features, and jointly inputting the morphological edge contour features and the color channel deviation features into a pre-trained multi-fault classification model; the fault type recognition result, the confidence coefficient and the preset fault type weight are fused, the comprehensive degradation index of each monitoring area is calculated, a three-dimensional diagnosis result is output in combination with the spatial position information of the monitoring areas, and accurate positioning diagnosis, degradation trend quantification and multi-fault intelligent distinguishing of the cold end area of the air preheater are achieved. The method is suitable for full-life-cycle online monitoring and maintenance decision making of the rotary air pre-heater.

The utility model discloses an air preheater for a burner at the bottom of an ethylene cracking furnace, and relates to the field of ethylene cracking, the air preheater comprises an air preheater body and a connecting air duct, the air preheater body comprises a preheater shell, an air inlet and an air outlet are formed in the two ends of the preheater shell respectively, and a heat exchange tube bundle is arranged in the preheater shell; a heat source inlet and a heat source outlet are formed in the preheater shell and connected to the two ends of the heat exchange tube bundle correspondingly. The air outlet is connected to a combustor at the bottom of the cracking furnace through a connecting air duct; one air preheater body is matched with a plurality of cracking furnace bottom combustors. The cracking furnace solves the problem that the bottom space of the cracking furnace is limited, is suitable for limited space, saves occupied area and is high in heat exchange efficiency.

The invention discloses an air pre-heater anti-tripping method and system based on working condition recognition, and relates to the technical field of thermal equipment operation monitoring and fault prevention and control, and the method comprises the steps: collecting operation state parameters of an air pre-heater; constructing a working condition recognition model, and performing classification judgment and anomaly recognition on the operation state parameters of the air pre-heater; and based on the abnormal identification result, adjusting tripping logic and executing an anti-tripping control strategy. According to the method, continuous acquisition and quantitative representation of the key variables in the time sequence dimension in the equipment operation process are realized, so that basic data support is provided for subsequent working condition modeling and state recognition, the precision and timeliness of air pre-heater anomaly recognition are improved, and the accuracy and timeliness of air pre-heater anomaly recognition are improved based on the anomaly recognition result. The method has the advantages that tripping logic is adjusted, an anti-tripping control strategy is executed, the self-adaptability of tripping decision is improved, mistaken tripping is avoided, the safety of key equipment is guaranteed, and differential response and closed-loop execution of protection control are achieved.

The invention is suitable for the technical field of automatic control, and provides an MPC heating furnace oxygen-enriched combustion control system parameter optimization method based on reinforcement learning, which comprises the following steps: step 1, production line data is acquired, and the acquisition of the production line data is mainly to acquire real data of an actual cement production control production line, including MV, OV and DV data; and step 2, obtaining a state space model, the obtaining of the state space model comprising establishing a model of converting a first-order transfer function into a state space, the MPC parameter adjustment is performed by using the prominent learning ability and adaptive ability of a reinforcement learning (RL) method, the dynamic adjustment according to the change of the system can be realized, and the control accuracy of the system is improved. And training the current oxygen-enriched combustion control algorithm according to the state information under the existing decision-making condition so as to output the expected furnace temperature, and evaluating the effectiveness of the control algorithm through the prepared evaluation standard.

The invention discloses a chemical looping combustion material circulation method and chemical looping combustion equipment. The chemical looping combustion material circulation method comprises the steps that heat carrier particles and oxygen carrier particles are mixed in an air reactor, the oxygen carrier particles and oxidizing airflow are subjected to an oxidation reaction and release heat, and the heat carrier particles absorb the heat by making contact with the oxygen carrier particles; the flow speed of the oxidizing gas flow is adjusted, heat carrier particles are selectively separated out by means of the difference of the fluidization characteristics of the heat carrier particles and oxygen carrier particles, and the separated oxygen carrier particles are conveyed to a fuel reactor; heat is extracted from the separated heat carrier particles, and then the heat carrier particles are discharged or flow back to the air reactor. The invention relates to a chemical looping combustion technology, and provides a chemical looping combustion material circulation method and chemical looping combustion equipment, heat carrier particles are introduced, the heat carrier particles absorb heat released by oxidation of oxygen carrier particles and transmit the heat to a heating surface of a heat recovery structure, and effective extraction of heat in the chemical looping combustion process is achieved.

The invention discloses a megawatt pressurized bubbling fluidized bed oxygen-enriched combustion test platform and a combustion method. The platform comprises a feeding system, a pressure swing adsorption oxygen production and gas inlet system, a deslagging system, an oxygen-enriched combustion reaction system and a flue gas and fly ash sampling treatment system. The feeding system adopts a spiral and star-shaped double-path independent pressure feeding unit, and is provided with a multi-stage stock bin, a drying device and a pipeline cooling structure, so that pressurized continuous feeding is realized, and tempering is prevented; the pressure swing adsorption oxygen generation and gas inlet system generates oxygen-enriched gas through a PSA technology, and the oxygen-enriched gas is mixed with CO2 to form a graded oxygen-enriched atmosphere; according to the oxygen-enriched combustion reaction system, accurate temperature control is achieved through an air distribution plate, a reducer pipe and a partition heat exchange device, and generation of NOx is restrained; the problems of unstable fuel supply, unreliable deslagging, low combustion efficiency, difficulty in CO2 enrichment and the like under the high-pressure oxygen-enriched combustion condition in the prior art can be effectively solved.

This invention discloses a boiler load adaptive regulation system based on solid thermal storage, relating to the field of power plant boiler combustion technology. The invention includes a boiler with an economizer arranged in its tail flue, and a flue gas extraction pipe connecting the boiler and the economizer. The end of the flue gas extraction pipe is connected to an ash separation component, the outlet of which is connected to the flue gas inlet of a solid thermal storage component, and the flue gas outlet of the solid thermal storage component is connected to the air preheater inlet. This invention extracts high- and medium-temperature flue gas from different locations in the boiler during rapid load reduction, stores the heat from the high-temperature flue gas using solid thermal storage technology, and releases the heat from the solid thermal storage component when rapid load increase is needed. This heat is then used to increase the primary air temperature and pulverized coal temperature through a heat exchanger, enhancing the combustion intensity of pulverized coal in the furnace. By reducing the amount of high-temperature flue gas in the boiler, the load change rate of the unit is effectively improved.

The utility model is applicable to the technical field of biomass boilers, and discloses a biomass boiler air distribution device which is characterized in that a rotating pipe is vertically and rotatably mounted in the middle of the top of a boiler body through a sealing bearing, support frames are vertically and fixedly mounted on two sides of the top of the boiler body, and a fixed sleeve is fixedly mounted on the surface of the top of each support frame; a conveying pipe is fixedly installed between the inner sides of the two fixing sleeves in a transverse penetrating mode, the top end of the side edge of the conveying pipe fixedly communicates with an air feeding pipe, a driving mechanism is arranged in the conveying pipe, and a transmission mechanism is arranged in the rotating pipe. According to the technical scheme, air can be normally conveyed into the rotating pipe and the exhaust pipe through the connecting straight pipe and the rotating joint, and external air is uniformly conveyed to different positions in the furnace body by combining with the synchronous rotating exhaust groove; and air is conveyed to different positions in the furnace body, so that the contact degree of comburent in the furnace body and oxygen is increased, and the combustion rate of the comburent in the furnace body is increased.

The utility model discloses a furfural residue utilization system which comprises a hydrolysis kettle, a residue storage warehouse, a stokehole stock bin, a drying flue, a crusher, a vibrating screen, a furnace top gas-residue cyclone separator, a boiler, a bag-type dust collector, an air preheater, an induced draft fan, a desulfurizing tower, a demister, a denitration device and a chimney, a slag discharging opening of the hydrolysis kettle is communicated with an inlet of the slag storage warehouse, a discharging opening of the slag storage warehouse is communicated with a feeding opening of the stokehole stock bin, a discharging opening of the stokehole stock bin is communicated with a feeding opening of the spiral conveyor, a discharging opening of the spiral conveyor is communicated with a feeding opening of the drying flue, and a discharging opening of the drying flue is communicated with a feeding opening of the crusher. A discharging port of the crusher is communicated with a feeding port of the vibrating screen, an undersize product outlet of the vibrating screen is communicated with a feeding port of the furnace top gas-slag cyclone separator, and a discharging port of the feeding port of the furnace top gas-slag cyclone separator is communicated with a fuel inlet of the boiler. According to the furfural residue recycling device, furfural residues can be efficiently treated, resource utilization of the furfural residues is achieved, and the combustion efficiency of the boiler is guaranteed.

The utility model relates to the technical field of kitchen utensils, and provides a novel furnace end which comprises a furnace end body provided with a combustion cavity, an ignition needle used for igniting liquid fuel and a heating device used for preheating the liquid fuel to promote gasification of the liquid fuel are arranged on the combustion cavity, and the furnace end body is provided with an air inlet device. A plurality of circles of air inlet channels which are arranged at intervals in the circumferential direction and penetrate through the side portion of the combustion cavity are formed in the side portion of the combustion cavity, the input end of the air inlet device communicates with outside air, the output end of the air inlet device communicates with the air inlet channels, and the outside air enters the combustion cavity through the air inlet device and the air inlet channels and forms spiral airflow spirally flowing in the combustion cavity. After being gasified, the liquid fuel is mixed with the spiral air flow, so that the gasified liquid fuel is fully combusted, and the technical problem that carbon black is easily generated in a combustion cavity due to insufficient combustion after the liquid fuel of an existing furnace end is gasified is effectively solved.

The application discloses a boiler air preheater sector plate lifting system and relates to the technical gap lifting field.A laser gap control subsystem is used for collecting a gap signal value between a sector plate and a rotor flange face; a temperature control subsystem is used for collecting a flue gas outlet temperature; a lifting interval presetting subsystem is used for presetting a plurality of lifting intervals according to a set value; a direct lifting control subsystem is used for determining a direct lifting control strategy according to a relationship between the gap signal value and the lifting intervals; an indirect lifting control subsystem is used for determining an indirect lifting control strategy according to the flue gas outlet temperature when the laser gap control subsystem fails; and an execution control subsystem is used for controlling sector plate lifting to adjust a sealing gap according to the direct lifting control strategy / indirect lifting control strategy. Through the introduction of a multi-parameter fusion feedback mechanism, fine control is realized.

A burner device (X) in which air (Air) ejected from an air ejection port (21) and fuel (G) ejected from a fuel ejection nozzle (30) are mixed and burned, the fuel ejection nozzle (30) being provided with a short-flame fuel ejection nozzle (31) and a long-flame fuel ejection nozzle (32), the short-flame fuel ejection nozzle (31) and the long-flame fuel ejection nozzle (32) being disposed in the short-flame fuel ejection nozzle (31), and the long-flame fuel ejection nozzle (32) being disposed between the short-flame fuel ejection nozzle (31) and the long-flame fuel ejection nozzle (32). The short-flame fuel discharge nozzle (31) mixes and burns the fuel at a position close to the air discharged from the air discharge port, and the long-flame fuel discharge nozzle (32) mixes and burns the fuel at a position away from the air discharged from the air discharge port.

The utility model discloses a novel burner structure used for improving the utilization rate of a unit boiler aiming at east coal. A boiler combustion system of the unit boiler comprises a coal pulverizing system and a burner. The combustion system forms a direct-blowing pulverizing system in a direct-blowing manner of a medium-speed coal mill; the combustors are arranged on the boiler in a regular four-corner mode. The combustor is divided into five layers of primary air chambers from bottom to top, and the distances between the adjacent primary air chambers are equal. After the structure of the novel combustor is improved, on the premise that 90% of Zhundong coal is combusted, the on-load capacity of a boiler is improved, the boiler has the capacity of being brought to 350 MW or above for a long time, meanwhile, a hearth has the high hearth anti-slagging capacity, and the safety of a heating surface is guaranteed.

A multi-fuel double-feeding-channel combustion furnace relates to the new technical field of outdoor and kitchen oil gas furnaces and comprises a furnace end body and an inner barrel structure in sealed connection with the interior of the furnace end body, the inner barrel is of a barrel structure with the upper end open and the lower end closed, and the lower portion of the inner barrel is connected with an oil pipeline in a bypass mode and provided with a flow adjusting valve to achieve accurate oil supply control. The upper end of the inner cylinder is in sealed connection with an oil nozzle with a protruding structure, and the protruding part is inserted into an air spraying hole of the air nozzle above. Air is supplied to a cavity formed between the air nozzle and the oil nozzle through an independent air pipeline, so that oil and gas burning can be carried out independently and can also cooperate with each other. According to the structure, the preheating-free function of the oil furnace and the preheating-free function of the low-flash-point fuel are achieved, multiple purposes of one furnace are achieved, and optimization is achieved in the aspects of combustion efficiency improvement and use convenience.

The utility model discloses an aluminum bus welding rapid preheating device which comprises a baking gun gas conveying pipe, the tail end of the baking gun gas conveying pipe is connected with a gas inlet pipe joint, the gas inlet pipe joint comprises a combustible gas pipe joint and a combustion-supporting gas pipe joint, and the combustible gas pipe joint and the combustion-supporting gas pipe joint are connected to form a Y-shaped gas inlet pipe joint. A holding soft sleeve is connected to the outer surface of the baking gun gas conveying pipe in a sleeving mode, an L-shaped pipe connector is connected to the front end of the baking gun gas conveying pipe, a semi-annular bent pipe frame is installed at the top end of the L-shaped pipe connector, and a plurality of welding gun nozzles are installed on the inner side of the semi-annular bent pipe frame. According to the scheme, the front end opening of the gas conveying pipe of the baking gun is connected with the semi-annular bent pipe frame through the L-shaped pipe connector, and the welding gun nozzles which are symmetrically distributed are arranged on the inner side of the semi-annular bent pipe frame. The aluminum bus located at the circle center of the semi-annular bent pipe frame can be welded and preheated at the same time from multiple angles, the welding preheating efficiency is higher, and operation is easy.

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

This application provides an adaptive combined burner for exhaust gas calorific value, comprising a central assembly and peripheral assemblies. One end of the central assembly along the air intake direction is the combustion end, which delivers combustible gas and main combustion-supporting gas to the combustion end and ignites them to form the main flame. The peripheral assemblies surround the combustion end, and one end of the peripheral assemblies along the air intake direction has several combustion ends located downstream of the combustion end along the air intake direction. The peripheral assemblies include an exhaust gas duct for conveying exhaust gas and an exhaust gas-supporting combustion air duct for conveying exhaust gas and combustion-supporting gas. The exhaust gas-supporting combustion air duct is fitted around the exhaust gas duct, and both extend to the combustion ends, introducing the exhaust gas and exhaust gas-supporting gas into the combustion chamber. The peripheral assemblies also include a conical guide and a swirl vane assembly located at the combustion ends. The conical guide is located at the outlet of the exhaust gas duct with its tip facing the exhaust gas duct, and the swirl vane assembly is rotatably located at the outlet of the exhaust gas-supporting combustion air duct.

The utility model belongs to the technical field of boiler medium flow measurement, and discloses a coal mill inlet air duct which comprises a hot air mother pipe, a hot air duct is installed in the middle or at the bottom of the hot air mother pipe, a cold air duct is installed on one side of the bottom of the hot air duct, and a cold air mother pipe is installed at the end, away from the hot air duct, of the cold air duct. The joint of the hot air duct and the cold air duct is located on the upper portion of the boiler operation layer, and a mixed air duct is installed at the bottom of the hot air duct and provided with an air volume device. According to the utility model, the medium flow field at the flow device in the inlet air duct of the coal mill can meet the requirement of air volume measurement, and the inlet air volume of the coal mill can be conveniently and accurately measured.

The utility model relates to the technical field of gasification furnace burners, in particular to a gasification furnace cooling burner which comprises a burner body and a cooling unit. The cooling unit comprises a water inlet pipe, a water outlet pipe and a cooling coil pipe connected between the water inlet pipe and the water outlet pipe, the water inlet pipe and the water outlet pipe are both arranged vertical to the axis of the burner body, the water inlet pipe is located below the water outlet pipe, and the cooling coil pipe is arranged at the discharging end of the burner body in a sleeving mode; the water inlet pipe and the water outlet pipe are both perpendicular to the burner body, and the water inlet pipe is arranged below the water outlet pipe, so that the water inlet pipe can be filled with cooling water when the cooling water flows, air is prevented from being mixed into the water inlet pipe, flow reduction is avoided, and the cooling effect of the cooling water is guaranteed to reach the expected effect; meanwhile, obstruction of air to flowing of cooling water is avoided, the flowing speed of the cooling water is increased, the cooling effect of the cooling water is improved, the service life of the cooling burner of the gasification furnace is guaranteed, and actual use requirements are met.

The application discloses a household garbage hydrogen-oxygen flame incineration treatment system, which is characterized by comprising a household garbage hydrogen-oxygen flame incineration and a nano microbubble quenching tower; the household garbage hydrogen-oxygen flame incineration furnace comprises a first combustion chamber, a second combustion chamber and a third combustion chamber arranged from bottom to top; the first combustion chamber is provided with a feeding port; a multi-stage hydrogen-oxygen flame purification ring is arranged at the connection position of the second combustion chamber and the third combustion chamber; a smoke exhaust port connected with a smoke treatment system is arranged above the third combustion chamber; the nano microbubble quenching tower comprises a tower body, a smoke pipe is spirally arranged outside the tower body, and an air inlet section, a cooling section, a spraying section and a drying section are sequentially arranged in the tower body from bottom to top. In the structure, the incineration furnace adopts a single furnace vertical integrated form, the occupied area is small, and the pyrolysis gas production is stable. In the purification tower, the smoke can be rapidly cooled, so that the situation that dioxin is generated again in the smoke cooling process is avoided, and the safety of smoke emission is improved.

The invention relates to the field of heating furnace production, in particular to a heating furnace heat accumulating type air collecting low-nitrogen combustion system and method.The heating furnace heat accumulating type air collecting low-nitrogen combustion system comprises a furnace body, at least two heat accumulators are installed on the outer wall of the furnace body, each heat accumulator is connected with an air blowing unit and an air inducing unit, and the air blowing unit is used for blowing external air into the furnace body through the heat accumulators; the air inducing unit is used for extracting gas in the furnace body through the heat accumulator; when air is blown into the furnace body or extracted from the furnace body, the air passes through the heat accumulator and exchanges heat with the heat accumulator; the heat accumulator is further connected with an air collecting unit. According to the combustion system, preheating air flows of all the heat accumulators are integrated through the air collection unit, a centralized heat distribution channel is formed, and a closed-loop heat utilization mechanism of high-temperature flue gas heat accumulation, cold air preheating and hot air circulation supply is constructed in cooperation with the alternate switching design that every two heat accumulators form one group; and after being fully absorbed by the heat accumulator, the waste heat of the high-temperature flue gas is completely used for preheating cold air to generate hot air, so that the energy utilization efficiency is improved.

The object of the present invention is to provide a regenerative burner device that can easily reduce NOx contained in combustion exhaust gas by simply adding an extremely simple means. [Solution] The regenerative burner comprises a cylindrical body having an inlet and outlet for fuel gas, a heat storage body surrounding the cylindrical body, a fuel supply unit that supplies fuel gas to the inlet of the cylindrical body, and a housing that houses the cylindrical body and the heat storage body and is connected to the fuel supply unit and radiant tubes. The housing has an inlet / outlet for introducing combustion air into the housing during combustion, a flow path that flows the combustion air introduced from the inlet / outlet toward the outlet of the cylindrical body via the heat storage body, and a space formed on the flow path between the inlet / outlet and the heat storage body. The fuel supply unit has a first supply path that supplies fuel gas to the inlet of the cylindrical body and a second supply path that supplies fuel gas to the space in the housing.

The application discloses a coal mill device for power generation of a thermal power plant, and relates to the field of coal mills, which comprises a coal mill body and a coal falling pipe for feeding coal to the coal mill body, a coal inlet pipe and a coal outlet pipe are installed on the top side of the coal mill body, and an air inlet pipe for conveying hot air is installed on one side of the coal mill body; the preheating and drying device is installed on the coal inlet pipe and the air inlet pipe. It should be noted that, in the embodiment of the application, when coal is fed, the hot air provided by the air inlet pipe makes the coal screen rotate to dry and screen the coal, thereby ensuring the safe use of the coal mill. When a fire breaks out, the switching box, the driving pipe, the rotating preheating hopper and the coal falling pipe and other parts can be actively closed, the carbon dioxide fire extinguisher is communicated with the switching air tank, automatic fire extinguishing is realized, the purpose of stopping the supply of hot air and coal to the coal mill is achieved, the fire extinguishing effect of the fire extinguisher is ensured, and the safety hazard is eliminated.

The utility model discloses an air-steam heater with a dead steam recovery device for a boiler, which comprises a heater cylinder, an air inlet and an air outlet are respectively arranged at two ends of the heater cylinder, and an input end of a heat exchange tube bundle in the heater cylinder is connected with a high-temperature and high-pressure steam input tube. A heat exchange discharge pipe at the output end of the heat exchange pipe bundle is connected with a dead steam conveying pipe and a condensate water conveying pipe, the dead steam conveying pipe is connected with a steam-water recovery device, and the steam-water recovery device comprises a condensation mechanism and a steam-water recovery device output pipe; the condensate water conveying pipe is connected to a condensate water recycling barrel, a recycling barrel condensate water output pipe is arranged on the condensate water recycling barrel, the recycling barrel condensate water output pipe is connected with a condensate water conveying pump, and the condensate water conveying pump is connected to a deaerator through a delivery pipe; an output pipe of the steam-water recycling device is connected to the condensate water recycling barrel. The waste steam and condensate water recycling device has the advantages that the waste steam and the condensate water are recycled, so that water resources can be greatly saved, and the operation cost of the boiler is effectively reduced.

A kind of heating furnace burner automatic control method based on single burner pressure measurement, for the slab of higher uniformity requirement of discharge temperature, install coal, air pressure real-time monitoring system at the conventional burner of soaking zone of heating furnace respectively, and the coal, air pressure data of single burner is transmitted to computer control system.According to the fluctuation of air, coal gas main and the measured value of coal, air pressure difference of current two sides single conventional burner, control system automatically judges the temperature uniformity in heating furnace, especially in soaking zone, including the uniformity of temperature in both sides and middle of furnace.According to the judgment result of temperature uniformity, automatically control corresponding burner in soaking zone.Control strategy includes automatic opening and closing of conventional burner in both sides of soaking zone, temperature setting and corresponding air-fuel ratio of flat flame burner on furnace top, so as to achieve the purpose of stable heating furnace temperature, improve the temperature uniformity of slab, reduce the energy consumption of heating furnace and realize the automatic opening and closing of burner.

The utility model discloses an energy-saving burner with a multi-stage airflow mixing structure, which belongs to the technical field of burners and comprises a gas main pipe, a connecting base communicated with the gas main pipe and a burning head sleeve mounted on the outer side of the connecting base. A gas branch pipe is installed on the connecting base, a gas small hole is formed in the top end of the gas branch pipe, an internal thread is arranged on the inner wall of the gas branch pipe, an ignition hole is formed in the middle of the connecting base, a combustion-supporting pipe is arranged on the outer side of the gas branch pipe in a sleeving mode, and the bottom end of the combustion-supporting pipe is fixedly connected with the connecting base. Small combustion-supporting holes are formed in the side wall of the combustion-supporting pipe in an array mode, so that the problems of scale deposition and rusting in the fuel gas branch pipe can be prevented, pipeline blockage is effectively prevented, meanwhile, the flame jetting range is increased, mixing of fuel and air is promoted in the first-stage combustion area, and sufficient combustion of the fuel can be guaranteed.

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

The application discloses a wind distribution device for a circulating fluidized bed boiler, which comprises a wind chamber, a wind distribution part, an adjustable baffle and a driving device. The wind chamber comprises a wind distribution area and a wind guide area, the wind distribution area is arranged above the wind guide area, and the wind distribution area is in communication with the wind guide area. The wind distribution part is arranged on the top of the wind distribution area. The adjustable baffle is rotatably connected to the top of the wind guide area. The driving device is connected to the adjustable baffle and drives the adjustable baffle to rotate so as to adjust the wind volume entering the wind distribution area. The air inlet is arranged on at least one side of the wind guide area. Thus, the wind volume entering each area of the furnace of the circulating fluidized bed boiler can be quantitatively controlled by arranging the adjustable baffle on the device, and the fluidization state of the bed material in each area can be differentially adjusted, so that the operation problems, such as poor fluidization of the bed material, high local bed temperature, coking and partial bed, are solved. Meanwhile, the device has the advantages of simple operation and low installation and maintenance cost.

The utility model discloses a carbon black combustion tail gas boiler with an in-boiler heat storage stable combustion device, and belongs to the technical field of tail gas boiler devices. A carbon black tail gas burning boiler with an in-boiler heat storage stable burning device comprises a boiler body and further comprises a burner fixedly connected in the boiler body and used for burning carbon black tail gas fuel. The in-furnace heat storage stable combustion device is fixedly connected into the boiler, and the combustion flame is within the range of the in-furnace heat storage stable combustion device; the hearth heating surface is fixedly connected in the boiler; the utility model is provided with an in-furnace heat storage stable combustion device. The in-furnace heat storage stable combustion device mainly comprises a heat storage material, a refractory material, a heat preservation material and the like, the in-furnace heat storage stable combustion device has a heat storage function in a combustion flame range, the combustion efficiency can be enhanced, meanwhile, a sufficient radiation heating area is provided for the hearth membrane water cooling wall without laying the refractory material, and the heat absorption rate of the boiler hearth is guaranteed.

The invention relates to the technical field of combustors, in particular to a TPMS porous medium combustor and a two-way air inlet using method thereof.The TPMS porous medium combustor comprises a combustor body and a TPMS porous medium heat accumulator filled in the combustor body, air inlet pipes which are symmetrically arranged are fixed to the two sides of the combustor body, and the ends of the air inlet pipes are fixedly communicated with premixing pipes; the air supply pipes are symmetrically fixed to the side wall of the premixing pipe, and an airflow adjusting assembly is arranged on the premixing pipe and used for adjusting the flow speed of airflow pumped by the air supply pipes; the partition plate is fixed in the air inlet pipe, and the partition plate divides the air inlet pipe into a buffer chamber and a conveying chamber; the conveying pipe is fixed to the air inlet pipe and communicates with the conveying cavity and the combustor, and a communicating assembly is arranged in the air inlet pipe; and the buffer pushing mechanism is arranged in the air inlet pipe, and when the air pressure in the buffer cavity is gradually increased, the conveying pipe can be controlled to be gradually conducted through a conduction assembly, so that high-frequency oscillation caused by air pressure fluctuation is avoided.