28results about How to "Guaranteed combustion efficiency" patented technology

The invention discloses a high-stability low-load burner and a control method thereof, and solves the problem that when pulverized coal of an existing burner passes through a primary air pulverized coal pipe, granular pulverized coal is easily adsorbed in the inner wall of each air duct in the primary air pulverized coal pipe, and coking matter and blocking matter which are difficult to clean are formed. Comprising a combustor mounting base, a combustor body, a combustion ignition assembly and an anti-coking mechanism, the combustor body comprises a feeding pipe, a fuel processing pipe, a pressurized air duct and a cyclone dispersing pipe, and the anti-coking mechanism is arranged in the pressurized air duct; according to the anti-coking combustor, the anti-coking mechanism is arranged, the anti-coking mechanism is driven by flowing of pulverized coal, accelerated release of the pulverized coal in the pressurized air duct is achieved, meanwhile, the pulverized coal adsorbed on the inner wall of the pressurized air duct is effectively scraped away, and therefore coking matter and blocking matter in the pressurized air duct are avoided, and the stability and combustion efficiency of the combustor are guaranteed.

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 discloses a combustion chamber control method for coal seam in-situ gasification mining and application of the combustion chamber control method. The method comprises the steps that whether the injection-production point retreating time is met or not is judged according to the flow of a production well and / or the high calorific value of produced gas; if yes, an injection-production point retreating mode is selected according to the type of a production well pipeline, the retreating distance, a retreating injection point and / or a production point are / is determined according to the thickness of a coal seam and the size of a current combustion cavity, and the injection well and the production well are double horizontal wells for conducting in-situ gasification production on the coal seam. According to the method, stable combustion of the deep coal seam combustion cavity can be achieved, stability of the output gas flow and the heat value is guaranteed, and long-time benefit mining is guaranteed.

The invention discloses a liquid slagging boiler with a modular combustion chamber and a peak regulation method, and belongs to the technical field of fire coal consumption reduction of thermal power generating units. According to the method, on the basis of a combustion chamber of an existing liquid slagging boiler, the combustion chamber is divided into four modular combustion chambers with the same size, an independent fuel nozzle and an independent draught fan are installed on the outer side of each modular combustion chamber, so that each modular combustion chamber can be independently used, and in the peak regulation process, according to the peak regulation requirement, the modular combustion chambers can be used independently; and determining the use number of independent combustion chambers. The partition screens and the modular combustion chambers in the boiler are of detachable and splicable structures, so that each modular combustion chamber can be detached from the liquid slagging boiler to be replaced and spliced. According to the boiler, operation of the combustion chamber module can be accurately controlled according to actual load requirements, energy consumption is effectively reduced under the low-load condition, and the combustion efficiency is improved; and when the load is increased, sufficient steam supply is ensured.

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 utility model discloses a premixer of a combustor, which comprises a cylinder body with a mixing cavity inside, and an air inlet and a mixed gas outlet which are communicated with the mixing cavity are respectively arranged at two ends of the cylinder body, and is characterized in that a turbulent flow impeller is arranged at the mixed gas outlet, a gas outlet pipe is further arranged in the mixing cavity, and a gas outlet pipe is arranged in the mixing cavity. The gas outlet pipe and the mixing cavity are coaxially arranged, a gas cavity is formed in the gas outlet pipe, the front end of the gas outlet pipe is arranged close to the turbulent flow impeller, and the rear end of the gas outlet pipe is communicated with a gas supply pipe; the outer diameter of the middle of the gas outlet pipe is larger than the outer diameters of the two ends of the gas outlet pipe, the outer edge of the middle of the gas outlet pipe is arranged close to the inner wall of the mixing cavity, a plurality of gas outlet holes are annularly and evenly distributed in the outer edge face of the middle of the gas outlet pipe, and the gas cavity is communicated with the mixing cavity through the gas outlet holes. The gas mixing uniformity is improved, the size is reduced, and the combustion efficiency is improved.

The utility model discloses a combustor and a stove, and belongs to the technical field of kitchen electric appliances. The combustor comprises a fire distributor and an adjusting mechanism, a secondary air containing groove is formed in the upper surface of the fire distributor, and a secondary air inlet used for communicating the secondary air containing groove with the outside of the fire distributor is formed in the side wall of the fire distributor. The adjusting mechanism comprises a driver and a blocking piece, and the driver is used for driving the blocking piece to move in the direction close to or away from the secondary air inlet so as to adjust the air inlet amount of the secondary air inlet, so that the secondary air amount is matched with the combustion mode, and the fuel gas energy consumption of the combustor is reduced while the combustion efficiency is guaranteed. According to the stove, the burner is applied, so that the combustion efficiency can be guaranteed, and meanwhile, the gas energy consumption of the burner is reduced.

The utility model discloses a fan pressurization adjusting device which comprises a pressurization machine, a gas flow rate sensor is installed at the gas inlet end of the pressurization machine, and an adjusting structure is installed at one end of the gas flow rate sensor. In a normal state, a reinforcing part is closed, the flow rate of coal gas is adjusted through an adjusting valve, if the flow rate value is smaller than the minimum limit value of the adjusting valve, the reinforcing part works, namely, a driving assembly works, under connection of a driven bevel gear, a rotating rod rotates on a fixed sleeve through a bearing, and fan blades rotate accordingly; and the gas flow flowing through the connecting pipe is accelerated and pressurized until the gas flow rate sensor detects that the gas flow rate reaches a standard value, so that the normal work of the pressurizing machine is ensured, the shutdown of the pressurizing machine is avoided, the sufficient gas supply is ensured, the normal work of the combustor is ensured, the combustion efficiency is ensured, the required temperature is reached, and the continuity of industrial production and the product quality are ensured.

This invention discloses a control method, apparatus, device, and storage medium for a parking heater. The control method includes: acquiring altitude, ambient temperature, and excess air coefficient; controlling the opening of a solenoid valve based on altitude and ambient temperature to control fuel injection quantity when the oxygen sensor is disabled; and controlling the opening of the solenoid valve based on the excess air coefficient to control fuel injection quantity when the oxygen sensor is enabled. The technical solution of this invention dynamically adjusts the fuel injection flow rate in the parking heater through a controller, controlling the solenoid valve opening based on altitude and ambient temperature when the oxygen sensor is disabled, and controlling the solenoid valve opening based on the excess air coefficient when the oxygen sensor is enabled. This improves the accuracy of adaptive fuel control in the parking heater, ensures combustion efficiency, and reduces pollutant emissions.

The invention relates to the technical field of hot-blast stoves, and discloses a hot-blast stove baking system and a baking method thereof. The hot-blast stove baking system comprises a hot-blast stove, and the input end of a combustion stop valve is fixedly provided with a baking burner; a first heat energy recovery assembly, a heat energy recovery heat preservation assembly, a smoke filtering assembly and a second heat energy recovery assembly are arranged between the oven burner and the flue. The first heat energy recovery assembly is arranged, fuel gas is conveyed into a fuel gas adjusting pipeline and an air adjusting pipeline through a fuel gas generator and a combustion-supporting fan, combustion-supporting air is conveyed into a fuel inner pipe, then the fuel inner pipe is conveyed into an oven burner through a fuel main pipe, a combustion stop valve is opened to ignite the oven burner, and a flue is opened; oven flue gas is discharged through the flue, the flue gas is introduced into the smoke cavity through the first smoke outlet pipe, at the moment, the hot flue gas can heat the fuel inner pipe, then the fuel inner pipe is heated to heat fuel gas and air passing through the fuel inner pipe, molecular movement of the fuel gas and the air is improved, and the combustion efficiency of fuel is improved.

The invention relates to the technical field of fuel nozzles, and discloses a fuel nozzle structure with a multi-ring nesting, which comprises a combustion cylinder, the multi-ring nesting is arranged in the combustion cylinder, a plurality of fuel nozzles are arranged in the combustion cylinder through the multi-ring nesting, each fuel nozzle comprises a main pipeline, a sleeve and an oil injection inner pipe, the main pipeline is clamped with the multi-ring nesting, and the sleeve is clamped with the oil injection inner pipe. The sleeve sleeves the upper end of the outer surface of the main pipeline, the oil injection inner pipe is arranged at the lower end in the main pipeline, a plurality of air inlet holes are formed in the side wall of the main pipeline and located at the lower end in the sleeve, an air inlet channel is formed in the space between the sleeve and the main pipeline, and spiral blades are arranged in the air inlet channel. According to the fuel nozzle structure with the multi-ring nesting structure, the spiral blades are arranged, so that airflow entering the air inlet channel can be effectively guided, friction and resistance between the airflow and the inner wall of the nozzle pipeline are reduced, vortex and backflow of the airflow are avoided, the airflow uniformity in the airflow flowing process is guaranteed, and the gas flow is increased.

The utility model relates to an anti-backfire drying gun special for a fire board machine, and belongs to the technical field of stone machining equipment. According to the special drying gun for the fire board machine, the mixed rectifier, the mixed gas main guide pipe, the U-shaped shunt pipe and the drying gun nozzle are combined to form the special drying gun for the fire board machine with the three-fork structure, and the rectifying part and the mixing part are in clearance fit to form the inclined combustion channel matched with the second cavity and the first cavity which are located in the front and the rear respectively. High pressure can be formed to prevent mixed gas backflow caused by negative pressure, the backfire phenomenon can be prevented, the mixing rectification efficiency can be improved through the inclined structures of the combustion channel and the oxygen channel, then split-flow injection can be conducted through the U-shaped split-flow pipe, the overall sealing effect is good, disassembly and assembly are convenient, and the practicability is high. Therefore, not only can the combustion efficiency be ensured, but also the safety can be ensured.

The utility model discloses a hazardous waste incineration concentrated liquor back-spraying device which comprises an incinerator and a feeding mechanism, the incinerator comprises an incinerator body, a liquid storage barrel and a spraying piece, the spraying piece is arranged in the incinerator body and communicated with the liquid storage barrel through a liquid pumping piece, the feeding mechanism comprises an adjusting piece, a material barrel and a material conveying piece, the material barrel is communicated with the liquid storage barrel, the material conveying piece is connected with the adjusting piece, and the adjusting piece is connected with the liquid pumping piece. The adjusting part is used for driving the conveying part to ascend and descend so as to adjust the depth of one end, inserted into the charging barrel, of the conveying part, the charging barrel can rotate around the axis of the charging barrel to push garbage into a feeding opening in one end of the conveying part, and the dangerous waste is lifted through the conveying part and conveyed into the furnace body. The hazardous waste conveying device solves the problem that hazardous waste in a pool body is inconvenient to convey into an incinerator in the prior art.

The invention discloses a fuel feeding device and a control method, and the fuel feeding device comprises a feeding pipeline which is provided with at least one air inlet; the input end of the air supply pipeline is connected with the air supply device; the input end of the at least one air supply adjusting structure is in sealed connection with the at least one air inlet of the feeding pipeline and the output end of the at least one air supply pipeline; wherein the output end of the air supply adjusting structure extends along an output axis and extends into the feeding pipeline, and an included angle is formed between the output axis and the input axis; air flow in the air supply pipeline can be output into the feeding pipeline through the air supply adjusting structure, and the input end of the air supply adjusting structure can drive the output end of the air supply adjusting structure to rotate around the input axis so as to change the output angle of the output end of the air supply adjusting structure. The uniformity of fuel entering the combustion chamber can be improved, the combustion efficiency of the fuel and the stability of the combustion chamber are guaranteed, and blockage caused by uneven distribution of the fuel in the feeding pipeline can be prevented.

The application belongs to the technical field of aero-engines, and discloses an aero-engine combustion chamber main combustion stage fuel nozzle and a fuel control method. The aero-engine combustion chamber main combustion stage fuel nozzle comprises a same center axis, a duty class fuel nozzle, a swirler and a main combustion stage fuel nozzle which are sequentially sleeved from inside to outside, and the outlet of the main combustion stage fuel nozzle is sleeved with a sleeve. The fuel control method ensures that the fuel jet flow of the duty class fuel nozzle is unchanged, the swirler rotates around the duty class fuel nozzle, the fuel jet flow of the main combustion stage fuel nozzle is adjusted, and then the total fuel jet flow of the aero-engine combustion chamber main combustion stage fuel nozzle is changed. The fuel control method of the aero-engine combustion chamber main combustion stage fuel nozzle realizes efficient fuel injection under different working conditions, guarantees the combustion efficiency and stability of the combustion chamber, controls the combustion temperature distribution of the main combustion zone, and reduces the pollutant emission of the combustion chamber.

The invention provides a self-adjusting pulverized coal pipeline resistance adjuster and a boiler system, and belongs to the field of pulverized coal conveying, and the self-adjusting pulverized coal pipeline resistance adjuster comprises an adjuster switching pipeline, a plurality of supporting pipes, a rotor body provided with a plurality of rotor fan blades and two bearing seat assemblies; the rotating speed of the rotor body is designed to change along with the flow speed in the pulverized coal pipelines, so that the flow speed of wind powder in the pulverized coal pipelines is adjusted to be consistent. The boiler system comprises a grinding motor, a coal mill, a pulverized coal conveying pipeline, a resistance regulator and a boiler burner; and a resistance regulator is arranged on each pulverized coal conveying pipeline. Resistance balance of each pulverized coal pipeline at an outlet of a coal mill is realized through the self-adjusting pulverized coal pipeline resistance adjuster, the self-adjusting pulverized coal pipeline resistance adjuster can be suitable for various coal quality conditions, self-adjustment is realized, manual adjustment is not needed, the phenomenon of uneven combustion of a boiler is effectively improved, safe operation of the boiler and the combustion efficiency of the boiler are guaranteed, and energy consumption is reduced. The device can be popularized and applied in the field of pulverized coal conveying pipeline equipment.

The invention relates to the technical field of engine equipment, and discloses an unmanned aerial vehicle engine with a heating component, the unmanned aerial vehicle engine comprises a crankcase and a plurality of cylinder bodies fixed on the two sides of the crankcase, an air inlet channel is fixed on the crankcase, a crankshaft is rotatably installed in the crankcase, the central axis of the crankshaft is perpendicular to the central axis of the cylinder bodies, and the heating component is fixed on the cylinder bodies. A piston is arranged in each cylinder body in a sliding mode, and a connecting rod is rotationally connected between the piston and the crankshaft; a ventilation channel and an exhaust channel are arranged on the side wall of the cylinder body, the ventilation channel is communicated with the interior of the crankcase, and a heating assembly with one end extending into the ventilation channel is fixed to the cylinder body. The heating assembly comprises a connecting shell and a heat conduction rod fixed in the connecting shell. The heat conduction rod extends into the ventilation channel to preheat gas entering the cylinder body, so that fuel oil can be fully atomized to facilitate ignition, and an engine can be easily started in a low-temperature environment.

The application discloses a pure hydrogen and hydrogen-rich gas turbine burner and a use method thereof, and relates to the field of gas turbines, in particular to a pure hydrogen and hydrogen-rich gas turbine burner and a use method thereof.The burner comprises a nozzle, a nozzle integrated plate and a flame tube. The flame tube is provided with the nozzle integrated plate at one end. The nozzle integrated plate is provided with mounting holes matched with fuel nozzles. The mounting holes can be arranged in a ring shape, a sector shape, a circular shape and the like according to design requirements to realize flexible control of a target of the burner in stages and in zones. The nozzle is arranged in the mounting hole and used for spraying a fuel and air mixture into the flame tube. The burner has the advantages that: by reasonably arranging the nozzles and matching the flame tube, a target flame shape, an anchoring position, a flame temperature and a flame residence time are realized, stable combustion with low NOx emission, no tempering and no thermal acoustic oscillation is effectively realized, and the like. x

The application discloses a waste gas back blending combustion control system based on emission monitoring and belongs to the technical field of waste gas combustion control. Specifically, the application comprises a multi-source sensing detection module, a feedforward process control module, a feedback process control module, a back blending execution module and a monitoring and early warning module. The application synchronously monitors intake data and exhaust data, forms a feedforward-feedback compound control system, the feedforward control initially sets back blending waste gas flow and combustion air flow according to the intake data, the feedback control establishes a concentration-flow real-time model of nitrogen oxide and carbon monoxide according to the exhaust data, analyzes emission deviation based on the model, generates adjustment instructions for the back blending waste gas flow and the combustion air flow through a multivariable control algorithm, and obtains flow adjustment amplitudes responding to adjustment instructions of all levels by combining the emission deviation and the intake data, so that the back blending waste gas flow and the combustion air flow are coordinately adjusted, and the coordinated emission reduction of nitrogen oxide and carbon monoxide is realized.

The invention discloses a vaporizer for enhancing the vaporization effect and a using method thereof, and relates to the field of vaporizers, the vaporizer comprises an immersion pool, an air blower is arranged on the left side of the immersion pool, a combustor is installed on the left side of an inner cavity of the immersion pool, and a distribution pipe is arranged at the bottom of the right side of the combustor; the right side of the inner cavity of the immersion tank is fixedly connected with a water tank, the right side of the inner cavity of the water tank is provided with a heat exchanger, the left side of the inner cavity of the water tank is provided with a liquid level meter, the right side of the top of the immersion tank is fixedly connected with a gas outlet pipe, the back of the immersion tank is provided with a waste gas pipe, and the top of the immersion tank is provided with an anti-corrosion assembly; an alkali liquor tank is installed on the left side of the top of the anti-corrosion assembly, and a control panel is installed on the back face of the top of the anti-corrosion assembly. According to the vaporizer capable of enhancing the vaporization effect and the using method of the vaporizer, the vaporization effect of the vaporizer is high, meanwhile, the service life of the vaporizer can be guaranteed, and the anti-corrosion effect can be achieved.

The utility model relates to the technical field of boiler feeding devices, and provides a boiler feeding device which comprises a coal storage hopper and an auger conveying mechanism used for conveying coal in the coal storage hopper to a boiler, an anti-blocking mechanism is arranged in the coal storage hopper, and the anti-blocking mechanism comprises a first anti-blocking structure and a second anti-blocking structure. The first anti-blocking structure comprises a first rotating shaft, a first anti-blocking assembly and a first driving motor used for driving the first rotating shaft to rotate, the first anti-blocking assembly comprises a plurality of first blades, the first blades are circumferentially and uniformly distributed around the first rotating shaft, and the first rotating shaft is rotationally connected into the coal storage hopper. The problem that untreated coal is prone to blocking the feeding device in the feeding process of the feeding device in the prior art is solved, and the feeding efficiency is improved.

The utility model discloses a particle burner fuel supply mechanism which comprises a base, one side of the base is fixedly connected with a placing table, the top of the placing table is fixedly connected with a feeding box, one side of the feeding box is fixedly connected with a processing box in a communicated mode, the top of the processing box is fixedly connected with a first conveying pipe in a communicated mode, and the top of the first conveying pipe is fixedly connected with a second conveying pipe in a communicated mode. A conveying shaft is rotatably connected to the top of the first conveying pipe in a penetrating mode, a conveying piece is fixedly connected to the surface of the conveying shaft, a stirring plate is fixedly connected to the bottom of the conveying shaft, a pushing rod is fixedly connected to the top of the stirring plate, and a cutter is fixedly connected to the inner wall of the processing box. By arranging the stirring plates and the rotating rollers, the situation that particle fuel is clamped in the conveying shaft due to too large particles and the conveying efficiency is affected when the particle fuel is conveyed is avoided, fuel accumulation is avoided, the dispersed fuel can be cut through extrusion and a cutting opening again, the fuel can be dispersed and can be fully combusted, and the combustion efficiency is guaranteed.

The utility model belongs to the technical field of gas stove design, and particularly relates to a closed type dining blast gas stove for recovering smoke waste heat, which is characterized in that a pot body is arranged at the top of a stove body, the bottom of the stove body is connected with a smoke exhaust pipeline, and a gas pipeline and an air pipeline are arranged in the smoke exhaust pipeline; the air pipeline further comprises a bottom air inlet cavity, a top air outlet cavity and a plurality of air guide pipes connected between the bottom air inlet cavity and the top air outlet cavity, and the air guide pipes are arranged at intervals. The gas pipeline is coaxially arranged in the air pipeline, the outer wall of the gas pipeline, the bottom gas inlet cavity and the top gas outlet cavity are connected into a whole, and the gas guide pipe and the gas pipeline are arranged in a spaced mode. A waste heat recovery pipeline is arranged at the bottom of the smoke exhaust pipeline, and a heat exchanger is arranged in the waste heat recovery pipeline. According to the gas stove, waste heat of smoke can be used for preheating gas and air, the preheating area is larger, the preheating stroke is longer, the preheating efficiency is higher, and recycling of the waste heat of the smoke can be further achieved through the heat exchanger.

The invention discloses a transformation method for a modularized combustion chamber of a solid-state deslagging boiler for peak regulation of a thermal power plant, and belongs to the technical field of peak regulation of thermal power plants. Comprising a boiler main combustion chamber which is formed by assembling a plurality of modularized split independent combustion chambers. And each split independent combustion chamber is separated by a water cooling wall to form an independent combustion cavity. And a plurality of split pulverized coal burners are mounted on the outer side of the pulverized coal distributor and are connected with a pulverized coal balancing distributor through pipelines. In addition, the multiple modularized independent combustion chambers share an original smoke pipeline, and efficient smoke exhaust of the whole system is achieved. According to the transformation method, different combustion areas can be better isolated, the combustion efficiency is improved, emission is reduced, loads can be flexibly adjusted, and fluctuation changes of power requirements are adapted.

The invention discloses a boiler oxygenation equipment device which comprises an oxygenation treatment box, an air inlet assembly, an air conveying assembly, a measuring pipe, an oxygen concentration barometer and a maintenance bin gate, the air inlet assembly is arranged at the bottom of one end of the oxygenation treatment box, the air conveying assembly is arranged at the other end of the top of the oxygenation treatment box, the measuring pipe is installed on one side of the air conveying assembly, and the oxygen concentration barometer is installed on the maintenance bin gate. The oxygen concentration barometer is arranged at the bottom of the measuring pipe, the maintenance bin door is installed on one side of the oxygenation treatment box, and the oxygenation treatment box comprises a box body, an installation frame, an air compression mechanism, a first motor, a supporting block, an air conveying pipe and an oxygen measurer. According to the device, air is treated through the air compression mechanism and then conveyed into the boiler through the supporting block, the oxygen measurer is used for measuring the oxygen content of oxygen in a pipeline and supplementing oxygen insufficient, the stability of oxygenation is ensured, waste of oxygen is avoided, the stability of boiler oxygenation is ensured, and the combustion efficiency of the boiler is ensured.

This utility model discloses an oxygen-enriched combustion air supply device for a cremator, comprising a housing, a circulation pipe, and a cylindrical shell. An oxygen-enriched membrane oxygen generator and a fan are installed inside the housing. A discharge pipe is installed on the right side of the housing, connecting to the oxygen-enriched membrane oxygen generator and the fan. The circulation pipe is connected to the discharge pipe, and its other end connects to the air inlet of the fan. The cylindrical shell is installed on the inner wall of the housing, and a corrugated airbag is connected inside the cylindrical shell. An electric cylinder is installed on the cylindrical shell, connected to the left end of the corrugated airbag. A portion of the oxygen produced by the oxygen-enriched membrane oxygen generator is stored in the corrugated airbag. When the demand for oxygen-enriched air decreases, the corrugated airbag can be stretched to collect oxygen, reducing waste. When the demand for oxygen-enriched air increases, the electric cylinder compresses the corrugated airbag, delivering oxygen into the air and increasing the oxygen concentration, thus achieving flexible supply of oxygen-enriched air.

The utility model discloses a gas producer with a preheating function, which belongs to the technical field of gas producers and comprises a producer body, the top of the producer body is fixedly sleeved with a coal inlet pipe, the top end of the coal inlet pipe is fixedly connected with a coal guide pipe, and the top of one end of the coal guide pipe is fixedly connected with a coal storage barrel. A crushing mechanism is arranged at the top end of the coal storage barrel, and an inner cavity of the coal guide pipe is rotationally connected with a spiral conveying rod. When coal is heated in the furnace body, external air is pumped into the heat exchange pipe through the fan, the air in the heat exchange pipe is heated through heat in the furnace body, the heated air enters the preheating cylinder from the air guide pipe, hot air entering the preheating cylinder is guided by the annular guide plate, and the coal is heated through the annular guide plate. The hot gas preheats the coal mine moving in the coal guide pipe, so that the coal added into the furnace body has certain heat, and the combustion efficiency of the coal is guaranteed.

This utility model discloses a biomass pellet burner, comprising a combustion furnace, a feeding pipe, and a feeder. The discharge port of the feeder is connected to the upper feed port at one end of the feeding pipe, and the other end of the feeding pipe is connected to the combustion furnace. An air inlet is provided at one end of the feeding pipe, and one end of a first air branch pipe is connected to the air inlet of the feeding pipe. One end of a high-temperature furnace gas pipe is connected to the furnace wall above the ash outlet of the combustion furnace, and the other end of the high-temperature furnace gas pipe is connected to the air inlet of the feeding pipe. A first air pump is installed on the high-temperature furnace gas pipe. This utility model is not prone to clogging, and the high-temperature air during the feeding process dries the biomass pellets, ensuring the combustion efficiency of the biomass pellets and avoiding the generation of toxic gases due to incomplete combustion.