631results about "Blast-producing apparatus" patented technology

The invention discloses a pellet fan fault diagnosis method, and aims to solve the problems of low efficiency and insufficient accuracy caused by the fact that traditional fan fault diagnosis depends on manual inspection and experience judgment. The method comprises the following steps: firstly collecting fan operation parameters to form a data set, after data cleaning and normalization processing, carrying out data enhancement by adopting random sampling and Gaussian noise addition, carrying out feature extraction by utilizing a ConvNeXt network, dividing the data set, calculating a fault category feature prototype vector, and predicting a result through distance measurement and classification decision. An L2 regular term is added in a prototype network model loss function, model parameters are adjusted through back propagation, the model is deployed after performance evaluation of a test set is stable, preprocessing and enhancing steps are repeated on real-time data, and if a prediction result is not consistent or new data exist, the model is retrained. According to the method, the diagnosis accuracy and efficiency are improved through multi-technology cooperation, the over-fitting of the model is effectively prevented, the fault feature capturing capability is improved, and the advantages of function perfection and technical perspectiveness are shown.

The invention relates to the technical field of tangential boiler combustion, in particular to a direct-current burner and turbulent burner collaborative combustion device and method, and aims to solve the problems that a coal power unit only depends on pulverized coal combustion, the stable combustion effect is poor under the rated load of 20%-30%, the denitration efficiency is reduced during low-load operation, and combustion is unstable due to the fact that the coal quality deviates from a design value. According to the self-service combustion-stabilizing combustor, by means of the injection effect of direct-current primary air and direct-current secondary air of the direct-current combustor, a combustion-stabilizing cavity of the self-service combustion-stabilizing combustor and secondary air in rotational flow are cooperated, so that a center backflow area is formed in the center of the rotational flow combustor and serves as a stable ignition heat source to heat high-concentration pulverized coal, and meanwhile flame formed by combustion of the self-service combustion-stabilizing combustor can be used as a heat source for heating high-concentration pulverized coal. And primary air powder flame of the direct-current pulverized coal burner is ignited, external flame combustion-supporting technologies such as tiny oil or plasma are not used, and the stable combustion effect of a coal power unit only depending on pulverized coal combustion under the rated load of 20%-30% is achieved. The device is mainly used for improving the stable combustion effect of the boiler during working.

The invention discloses an air preheating biomass boiler, belongs to the technical field of boilers, and aims to solve the problems of low combustion efficiency, insufficient flue gas waste heat utilization and particulate matter emission of a traditional biomass boiler. Function optimization is achieved through a main body structure composed of a furnace body, a charging barrel and a rotating pipe, a double-spiral-disc heat exchange assembly is arranged in the charging barrel, biomass fuel is preheated through boiler exhaust smoke waste heat, meanwhile, smoke is discharged through exhaust holes after being distributed through spiral disc gas storage cavities, and unburned particles are filtered by a biomass layer and carried to a hearth to be subjected to secondary combustion; an air inlet cavity is formed in the rotating pipe, and air is preheated through the fixed pipe and the first connecting pipe and then input into the hearth. The exhaust assembly adopts a sliding rod and sealing block matched structure, and a convex block mechanism driven by a rotating pipe drives the sealing block to periodically move, so that gas in the charging barrel is intermittently exhausted through a double-layer filter screen. According to the boiler, the heat efficiency is improved through a smoke-air two-way preheating and particulate matter secondary combustion mechanism, and the biomass preheating, air heating and emission treatment process is optimized.

The invention discloses a gas cooker which comprises a combustor and an ejector, the combustor is provided with a premixing cavity, the premixing cavity is communicated with external gas supply through the ejector, a fire cover is arranged on the premixing cavity in a covering mode, the gas cooker is characterized by further comprising an energy gathering disc, a mounting opening is formed in the middle of the energy gathering disc, and the energy gathering disc is provided with a gas inlet and a gas outlet. The combustor is arranged at the position of the mounting opening in a penetrating mode, and a heat insulation cavity and a preheating cavity are sequentially defined by the energy gathering disc from top to bottom; the air outlet end of the air blower is communicated with the air inlet end of the preheating cavity; the nozzle seat is arranged on the ejector, a gas distribution channel is limited in the nozzle, one end of the gas distribution channel is communicated with the gas outlet end of the preheating cavity, and the other end of the gas distribution channel is communicated with the ejector. The energy-saving stove is simple in structure, heat emitted downwards can be fully utilized, and meanwhile the energy efficiency of the stove is effectively improved.

The invention relates to the technical field of vertical incinerators, in particular to a tower type rotary material distribution and concave-convex combined hearth system which comprises a furnace body, a furnace cover, a feeding hopper and a rotary material distribution mechanism, the rotary material distribution mechanism comprises a support, a gear motor, a driving shaft, a bearing set and a material scattering and crushing cone, and materials to be incinerated enter the furnace body through a material inlet; after being guided by the feeding hopper, the materials fall on the upper surface of the material spraying and crushing cone, the speed reducing motor is started, the material spraying and crushing cone is driven to rotate through the driving shaft, so that the materials are subjected to centrifugal movement on the material spraying and crushing cone, and the materials are crushed and scattered after sequentially passing through the first crushing assembly, the second crushing assembly and the third crushing assembly; the materials are scattered at the combustion section of the furnace body, so that the thickness distribution of a material layer is more uniform, incineration is facilitated, the phenomenon that the material layer is burnt through or smoldering occurs due to uneven thickness is prevented, and the incineration treatment effect on the materials is improved.

The invention discloses a biomass-driven Stirling generator combined heat and power generation system and a control method thereof, the system comprises a fuel distribution subsystem, a heat distribution subsystem and a power generation subsystem, the fuel distribution subsystem comprises a solid biomass particle feed port, a gas preheater, liquefied petroleum gas and a first air blower; the heat distribution subsystem comprises a second air blower, a first combustion chamber, a second combustion chamber, a first waste heat recoverer, a second waste heat recoverer, a heat pipe, cooling water and a residential heat utilization system; the power generation subsystem comprises a Stirling generator, a power converter, an energy storage battery and a residential power utilization system. According to the method, cooling water and a heat source are used for controlling the output power of a generator, the cooling water flow is adjusted through cooling water temperature errors and the cooling water temperature error change rate, flow speed adjustment is configured through cooperation of a plurality of valves, the heat source is controlled by changing the mixing ratio and the supply speed of fuel, and the output power of the generator is controlled. And the power supply and heat supply requirements of the user are matched with the system output.

The invention relates to the technical field of camping equipment, along with the increasing popularization of outdoor exploration and camping activities, a camping stove serves as an important component of the camping equipment, and the performance and convenience of the camping stove directly affect the experience of a camper. In order to solve the technical problems, the field camping stove comprises a bottom supporting frame, a stove body, a draught fan and a fuel barrel, the stove body, the draught fan and the fuel barrel are arranged on the top of the bottom supporting frame, an air inducing pipe and a feeding pipe are arranged on the right side of the stove body, and the air inducing pipe and the feeding pipe are arranged on the right side of the stove body. Fuel barrel supporting legs are arranged at the bottom of the fuel barrel, and the fuel barrel is installed on the top of the bottom supporting frame through the fuel barrel supporting legs. An air outlet pipe of the draught fan is communicated with the air inducing pipe, the draught fan is provided with a power connector and a draught fan power switch, the fuel barrel is provided with a liquid outlet pipe, and a control valve is installed on the liquid outlet pipe.

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

The invention discloses a combustion device for mixed combustion of solid waste of a coal-fired boiler, which belongs to the technical field of coal-fired boilers and comprises a combustion device body, a turbine device is mounted on the surface of the combustion device body, a fixing seat is fixedly connected to the surface of the combustion device body, a first hanging ring is fixedly connected to the other end of the fixing seat, and a fixing plate is welded to the surface of the combustion device body. According to the combustion device, the fixing base is fixedly connected to the surface of the combustion device body, the first hanging ring is fixedly connected to the other end of the fixing base, meanwhile, the fixing plate is welded to the surface of the combustion device body, the sliding groove is formed in the fixing plate, the sliding block is arranged in the sliding groove, and the second hanging ring is welded to the top of the sliding block; the rope penetrates through the first lifting ring and the second lifting ring, the rope is stretched through the first lifting ring and the second lifting ring, then the stress position of the device in the lifting process is enlarged, and at the moment, the device is more stable in the lifting process, and the stability is high in the using process.

The application relates to a direct-flow combustor and swirl combustor cooperative combustion device and method, and belongs to the technical field of tangential circle boiler combustion technology. In order to solve the problems of poor stable combustion effect of a coal power unit only relying on pulverized coal combustion at 20%-30% rated load, reduced denitration efficiency during low-load operation, and unstable combustion caused by coal quality deviating from the design value, the application relies on the direct-flow primary air and direct-flow secondary air of a direct-flow combustor, the stable combustion cavity of a self-help stable combustion combustor, and swirl inner secondary air, so that a center backflow area is formed in the center of a swirl combustor, as a stable ignition heat source, high-concentration pulverized coal is heated, a flame formed by the self-help stable combustion combustor is ignited, a direct-flow pulverized coal combustor primary air powder flame is ignited, external flame combustion-supporting technologies such as micro-oil or plasma are not used, and the stable combustion effect of the coal power unit only relying on pulverized coal combustion at 20%-30% rated load is realized. The application is mainly used for improving the stable combustion effect of a boiler during work.

The utility model discloses a multi-tube type efficient energy-saving environment-friendly boiler, and relates to the technical field of efficient energy conservation. The multi-tube type efficient energy-saving environment-friendly boiler comprises a shell, a motor is fixedly connected to the upper end of the shell, a feeding opening is formed in the side face of the shell, a transmission shaft is fixedly connected to the lower end of an output shaft of the motor, a first gear is fixedly connected to the side face of the transmission shaft, and a waterproof box is rotationally connected to the side face of the transmission shaft; a first blade is fixedly connected to the side face of the transmission shaft, a supporting column is fixedly connected to the side face of the shell, a second gear is rotationally connected to the supporting column, and a base plate is fixedly connected to the side face of the shell. Through rotation of the transmission shaft, the baffle and the first gear are driven to rotate at the same time, then the second gear is driven to rotate, accordingly, the third gear rotates towards the other side, meanwhile, the second blade fixedly connected with the side face of the rotating rod rotates along with the third gear, water in the boiler is fully stirred, and heating is faster.

The utility model discloses an ammonia-coal co-combustion device which comprises air boxes arranged on the front wall and the rear wall of a hearth respectively. P partition plates in the horizontal direction are fixedly arranged in the air box to form p + 1 layers of air chambers, and an air volume adjusting valve is arranged on an inlet air duct of each layer of air chamber; more than two layers of coal combustors, more than two layers of ammonia combustors and more than one layer of over fire air devices are arranged in respective air chambers; the over-fire air devices are located above the coal combustors on all the layers, and the ammonia combustors on all the layers are arranged below the coal combustors on the lowest layer or above the coal combustors on the uppermost layer. All the ammonia combustors on the same layer are connected with the same ammonia fuel conveying pipeline, and the ammonia fuel conveying pipeline is provided with a system stop valve; through reasonable arrangement of the position of the ammonia burner, the ammonia burner can better stabilize burning and has higher burning efficiency, efficient and stable ammonia / coal coupling burning is achieved, air staged burning is strengthened, and the purpose of low NOx emission is achieved.

The utility model discloses a biomass gas combustion system capable of accurately controlling combustion. The system comprises a biomass gas burner, a biomass gas pipeline connected with the burner, an air blower, an air supply pipeline connected with the air blower and the burner, a tar collecting device in a hearth of the biomass boiler, an oxygen sensor arranged on a smoke exhaust pipeline of the boiler, a controller based on a PLC (Programmable Logic Controller) system, and an air blower frequency converter. Gas component, flow, temperature and pressure measuring devices are arranged on the biomass gas pipeline, and flow and temperature measuring devices are arranged on the air supply pipeline. The controller calculates the oxygen amount needed by biomass gas combustion and the oxygen amount provided by the air blower according to data fed back by the measuring device, and controls the air blower frequency converter to adjust the air amount of the air blower under correction of data fed back by the oxygen sensor on the boiler smoke exhaust pipeline, so that combustion is accurately controlled under the condition of partial load of the boiler, and the combustion efficiency is improved. The combustion efficiency is improved, and the pollutant emission is reduced.

The invention discloses a boiler drum with a preheating device, and relates to the technical field of boiler equipment.The boiler drum mainly comprises an air supply device body, an air supply pipe, an incinerator, an air outlet pipe and the like, a main air supply pipe is arranged at the bottom of the air supply pipe, an air supply side pipe is arranged at the tail end of the right side of the air supply pipe, and the right side of the main air supply pipe is connected with a connecting pipe and a mixing pipe; by means of a multi-channel air supply structure, the fuel combustion efficiency is improved, fuel combustion is more sufficient, a smoke inlet pipe, a heat conduction pipe, a smoke removal box and the like are arranged above an air outlet pipe, heat conduction fins are arranged on the outer side of the heat conduction pipe, and inner fins are arranged in the heat conduction pipe. And the fuel conveying branch pipe and the connecting pipe can be independently detached and overhauled, equipment maintenance is facilitated, the use process is clear, and high practicability and innovativeness are achieved.

The utility model provides a system for heating primary air and secondary air by large slag waste heat of a coal-fired power plant boiler, which comprises a tubular heat exchanger which is arranged at a dry bottom hopper below a boiler hearth in the left-right direction of the bottom of the dry bottom hopper. A cooling water outlet of the tubular heat exchanger is divided into two paths, one path is connected with a primary air heater arranged at an inlet of the primary fan, and the other path is connected with a secondary air heater arranged at a secondary air inlet; heat carried by large slag discharged by a boiler is used for heating inlet air temperature of the primary fan and the secondary fan, steam extraction of a steam turbine is reduced, more steam enters the steam turbine to do work, and the load capacity of a unit is effectively improved.

The invention relates to the technical field of stepped furnaces, in particular to a mixed biomass energy-saving combustion stepped furnace which comprises a stepped furnace body and a feeding area, a conveying pipe is arranged in the feeding area, a driving assembly and a transmission assembly are arranged at the right end of the stepped furnace body, and a material frame a, a material frame b and a material frame c are sequentially arranged on the conveying pipe from left to right. A material roller a, a material roller b and a material roller c are rotatably arranged in the material frame a, the material frame b and the material frame c correspondingly, lifting assemblies are slidably arranged on the material frame a and the material frame c correspondingly, a driving assembly drives the material roller a, the material roller b and the material roller c to rotate through gear meshing, and coal and bamboo scraps in the material roller a, the material roller b and the material roller c are sucked into a material conveying pipe to be mixed through the negative pressure effect. The lifting assembly is driven by the transmission assembly to dredge coal in the material roller a and the material roller c, and the coal and bamboo sawdust in the material conveying pipe are blown into the stepped furnace through the air blower to be combusted. The problem of insufficient combustion heat supply caused by different feeding proportions of alternative fuels is solved.

The invention discloses a biomass gas staged combustion system and a control method, the system comprises a staged combustor, a gas induced draft fan and an air blower, the gas induced draft fan is connected with the staged combustor through a gas main pipeline, a first-stage gas branch pipeline and a second-stage gas branch pipeline, the first-stage gas branch pipeline and the second-stage gas branch pipeline are connected in parallel, and the air blower is connected with the staged combustor. A first-stage fuel gas electric control valve is mounted on the first-stage fuel gas branch pipeline, and a second-stage fuel gas electric control valve is mounted on the second-stage fuel gas branch pipeline; the air blower is connected with the grading combustor through an air main pipeline, a first-stage air branch pipeline and a second-stage air branch pipeline, the first-stage air branch pipeline and the second-stage air branch pipeline are connected in parallel, and a first-stage air electric control valve is installed on the first-stage air branch pipeline; and a second-stage air electric control valve is mounted on the second-stage air branch pipeline. According to the invention, high-efficiency combustion and low-nitrogen emission are realized in a relatively wide load range.

The invention provides an energy-heat conversion device for recycling industrial hydrogen-containing byproduct gas, and belongs to the technical field of combustors. The device comprises a hydrogen supply branch, an air supply branch and an energy-heat conversion device, hydrogen of the hydrogen supply branch comes from industrial by-product gas containing high-proportion hydrogen, the industrial by-product gas rich in hydrogen and air are pressurized through a compressor and then enter the energy-heat conversion device, the energy-heat conversion device comprises an air inlet pipe, an air outlet pipe and an air outlet pipe, the front portion of the nozzle body is communicated with an air supply branch, the front portion of the hydrogen inlet pipe is communicated with a hydrogen supply branch, gas supplied by the two branches is directly jetted into the combustion chamber through the nozzle body to organize coaxial diffusion combustion, and generated heat can be used for supplying heat or driving a small turbine to do work and the like. The energy-heat conversion device designed by the invention can realize the energy reutilization of industrial hydrogen-containing byproduct gas, and avoids serious energy waste caused by direct discharge of industrial waste gas.

The present application relates to a pulverized coal stable combustion and concentration device for a coal-fired power unit. The pulverized coal stable combustion and concentration device for a coal-fired power unit comprises a combustor, a combustion stabilizer, and a concentrator; the concentrator is used for dividing primary air pulverized coal airflow provided by a pulverized coal air source into first airflow, second airflow, and third airflow; the first airflow, the second airflow, and the third airflow are combusted in the combustion stabilizer and the combustor; a first inlet is communicated with the concentrator so as to introduce the first airflow into a pulverized coal pipe assembly; the pulverized coal pipe assembly can divide the first airflow into first sub-airflow and second sub-airflow; the concentration of pulverized coal in the first sub-airflow is less than the concentration of pulverized coal in the second sub-airflow; a first outlet is used for discharging the first sub-airflow into a cavity; a second outlet is used for discharging the second sub-airflow into the cavity; and a secondary air pipe is provided on the outer peripheral side of the inlet end of the combustion stabilizer and is communicated with the cavity. Therefore, the pulverized coal stable combustion and concentration device for a coal-fired power unit in the embodiments of the present application has the advantages of good combustion stability, good environmental protection effect, low production cost and the like.

This invention relates to a high-efficiency co-combustion device and method for a direct-flow burner and a swirl burner, within the field of tangential boiler combustion technology. To address the problem of tangential boilers failing to operate stably at 15% or lower rated loads, and the issues of nozzle overheating and burnout due to low primary air velocity in the direct-flow burner, as well as pulverized coal blockage in the pipes, this application utilizes a co-combustion method combining a direct-flow burner and a swirl burner. By introducing a system to increase the air velocity and temperature of the direct-flow burner and a supplementary air system for the swirl burner, the direct-flow primary air velocity is increased, thereby enhancing the direct-flow primary air ejection capacity. This allows for adjustment of the shape and size of the central recirculation zone and prevents nozzle overheating and burnout due to low air velocity in the duct. Simultaneously, increasing the temperature of the direct-flow primary air and the self-regulating combustion burner's primary air increases the pulverized coal temperature at the boiler inlet, strengthening initial ignition and burnout of the pulverized coal. This application is primarily intended to improve the stable combustion effect of boilers operating below 15% of rated power.

The utility model provides a thermal power plant boiler induced draft fan outlet structure, which relates to the technical field of thermal power plant boilers, and comprises an air outlet pipe, the two sides of the interior of the air outlet pipe are both provided with insertion blocks, the inner walls of the two insertion blocks are both provided with screw grooves, the center of the top end of the air outlet pipe is provided with an opening, a clamping block is arranged in the opening, and the air outlet pipe is provided with an air outlet. And a connecting column is rotationally connected into the clamping block. Through the arrangement of the mounting plates and the bolts, the insertion blocks can be mounted and dismounted at any time, due to the arrangement of the screw grooves in the insertion blocks, the insertion blocks are in butt joint with external devices, when different devices need to be in butt joint, only different insertion blocks need to be replaced, and therefore the screw grooves of different sizes are replaced; the two clamping columns are driven by the connecting block to be separated from the clamping holes and retracted into the inner cavity, at the moment, a user can directly move the clamping block upwards to drive the adjusting plate to move out of the air outlet pipe, the air outlet pipe is convenient to clean and maintain, and the practicability is higher.

The invention relates to the technical field of incineration equipment, in particular to a vertical furnace rotary vibration deslagging device which comprises a furnace body and a slag breaking mechanism. The slag breaking mechanism comprises a material screening cone, two groups of flexible supporting assemblies, a fixed crushing tooth, a movable crushing tooth, a combustion pagoda, a power assembly, a material screening cone axial supporting bearing, a material screening cone circumferential positioning bearing, two vibration motors, a heat radiation cover, a furnace bridge, a first fan, a first pipeline and a ventilation pipe; the material screening cone is arranged on the furnace body through a material screening cone axial supporting bearing and a material screening cone circumferential positioning bearing, the material screening cone is rotationally connected with the furnace body through a sealing ring, and the material screening cone is provided with a plurality of arc-shaped openings. In this way, the technical problem that in the prior art, a slag breaking device adopted by a vertical furnace is poor in waste slag breaking effect after waste incineration is solved.

The utility model provides a thermal runaway flue gas treatment device which mainly solves the problem that potential safety hazards exist after thermal runaway flue gas generated by thermal runaway of an existing battery is exhausted. The thermal runaway flue gas treatment device comprises a combustion barrel, an ignition assembly, a supercharging device and a flow dividing device, a combustion cavity for combusting thermal runaway flue gas is formed in the combustion barrel, and meanwhile, a plurality of first air holes communicated with the combustion cavity are formed in the combustion barrel; the ignition assembly is used for carrying out ignition treatment on thermal runaway flue gas in the combustion cavity; the pressurizing device is arranged in the combustion cylinder and used for pressurizing the thermal runaway flue gas entering the combustion cavity to form jet-flow-shaped gas, so that flames generated during combustion of the thermal runaway flue gas are thin and long columnar flames; the flow dividing device is connected to the inlet end of the supercharging device, and when the thermal runaway flue gas pressure at the inlet end of the supercharging device exceeds a threshold value, the flow dividing device conducts pressure relief and flow dividing on the thermal runaway flue gas at the inlet end of the supercharging device so that the thermal runaway flue gas can be continuously and stably combusted in the combustion cavity.

The application relates to the technical field of flue gas waste heat recovery, and discloses a rotary kiln flue gas low-temperature waste heat recovery device, which comprises a primary recovery chamber, a secondary recovery chamber and a water storage tank, a flue gas inlet pipe is fixedly installed at the left end of the outer wall of the primary recovery chamber, a flue gas connecting pipe one is fixedly installed at the right side of the upper end of the outer wall of the primary recovery chamber, the rear end of the outer wall of the flue gas connecting pipe one is fixedly connected with the front end of the outer wall of the secondary recovery chamber, the temperature of the heat-conducting aluminum sheet one directly contacting the outer wall of the S-shaped flue pipe is increased, the hot end of the thermoelectric sheet can have a constant high temperature, the heat-conducting aluminum sheet two contacting the inner wall of the water pipe one can take away the heat at the heat-conducting aluminum sheet two under the action of the water flowing in the water pipe one, and the cold end is formed, so that a temperature difference is formed between the hot end and the cold end of the thermoelectric sheet, the thermoelectric sheet can generate electricity by utilizing the temperature difference between the high and low temperatures, and the heat energy in the flue gas can be converted into electric energy.

The invention belongs to the technical field of methanol reforming hydrogen production, and particularly relates to a safety box for methanol autothermal reforming hydrogen production, the safety box comprises a box body, a first space and a second space are arranged in the box body, and a non-explosion-proof device is arranged in the first space; a combustion mechanism is arranged in the second space, the second space comprises an inner container and an outer wall, an airflow interlayer is arranged between the inner container and the outer wall, a fan is arranged between the airflow interlayer and the combustion mechanism, and the fan is used for conveying air in the airflow interlayer into the combustion mechanism. According to the invention, hydrogen-containing gas discharged at each stage in the running process of methanol autothermal reforming hydrogen production is collected and treated in a unified manner, combustible substances in tail gas are fully combusted, and environmental pollution is reduced; and heat is supplied to the reforming reactor through the combustion mechanism, residual hydrogen in the process is completely treated through waste heat utilization, the temperature of exhausted tail gas is reduced, and the system efficiency is 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 embodiment of the invention provides a boiler over-fire air adjusting device and method, and the device comprises an over-fire air bellow which is arranged at an inlet of a flue in a hearth of a combustion boiler, and an even number of over-fire air nozzles, partition plates and flow adjusting parts which are arranged at air inlets of the over-fire air nozzles are arranged in the over-fire air bellow; the carbon monoxide concentration detection equipment is arranged at an outlet of the flue in the hearth; the heat exchanger is arranged upwards along the flow direction of the flue gas in the hearth and is arranged between the inlet and the outlet of the flue; the temperature detection equipment is arranged on the outer wall of the heat exchanger; the control device is electrically connected with the carbon monoxide concentration detection equipment, the temperature detection equipment and the flow adjusting part and is used for controlling the flow adjusting part according to the comparison between the actual carbon monoxide concentration value detected by the carbon monoxide concentration detection equipment and the preset carbon monoxide concentration value; or the control device controls the flow adjusting piece to adjust the air supply amount of the over fire air nozzle according to the comparison between the actual wall temperature value detected by the temperature detection equipment and the preset wall temperature value.

The utility model discloses a fuel steam boiler, which belongs to the field of steam boilers, and comprises a boiler barrel, and a combustion chamber, a reversal chamber, a first smoke tube assembly, a smoke box and a second smoke tube assembly which are arranged in the boiler barrel, and a feed port and a smoke outlet are formed on the boiler barrel; one side of the reversal chamber is communicated with the first smoke pipe assembly, the other end of the first smoke pipe assembly is communicated with the smoke box, the other end of the smoke box is connected with the second smoke pipe assembly, and the other end of the second smoke pipe assembly is communicated with the smoke outlet. According to the fuel steam boiler, the secondary air inlets, the air blower and the induced draft fan are arranged on the left side and the right side of the hearth of the boiler barrel, so that combustibles can be fully burnt out, heat efficiency is improved, and emission of pollutants is reduced; and meanwhile, through the three-return-stroke design, a downstream combustion structure is formed, and the combustion efficiency and the heat transfer efficiency are greatly improved.

The utility model discloses an environment-friendly garbage treatment furnace capable of achieving sufficient incineration, relates to the technical field of garbage incineration treatment, solves the problems that an existing device is insufficient in combustion and poor in purification effect, and adopts the following scheme that a feeding port is formed in the top face of a combustion box. Through the arrangement of an ignition box, an electric telescopic rod and an air blower, the ignition box and an ignition plate ignite and burn garbage on a storage plate, the air blower injects external air into a combustion box during combustion, it is guaranteed that oxygen in the combustion box is sufficient, the electric telescopic rod can continuously pound the garbage up and down, and the garbage combustion sufficiency is guaranteed; meanwhile, through the arrangement of a first purification box, a second purification box and an activated carbon adsorption barrel, water in the first purification box and the second purification box can absorb dust, sulfur dioxide and other harmful gases in the gas respectively, finally, the activated carbon adsorption barrel absorbs carbon dioxide in the gas, and the purification effect is good.

The utility model discloses a large mixed combustion cooking stove, and belongs to the technical field of cooking stoves. The large cooking stove mainly comprises a large cooking stove body, a stove opening is formed in the surface of the large cooking stove body, and a storage groove is formed in the large cooking stove body in a penetrating mode; the air blowing assembly is mounted in the storage groove; the clamping and fixing assembly comprises a square hollow frame, the square hollow frame is installed in the storage groove, and a breathable grid plate is buckled to the storage groove; the mounting seat is mounted on the large cooking range body, and a boss is mounted on the mounting seat; the screw rod is in threaded connection with the boss; the clamping plate is connected to one end of the screw through a bearing, and a limiting groove matched with the clamping plate in width is formed in the installation base. According to the large mixed combustion cooking range, the grip is held to rotate so as to drive the screw rod to rotate, so that the clamping plate gradually gets close to the upper end face of the breathable grid plate, the breathable grid plate is fixed, and the breathable grid plate can be cleaned conveniently.