224results about "Blast-producing apparatus" patented technology

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 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 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 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 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 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 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.

The invention discloses a combustor and a gas stove. The combustor comprises a furnace end, a fire cover, an ignition needle, an induction needle and a fluid machine, the furnace end is provided with a first containing cavity, a second containing cavity and a third containing cavity, the fire cover covers the furnace end and comprises an outer ring fire cover, an inner ring fire cover and a gas conveying channel, the outer ring fire cover is provided with outer ring fire holes communicated with the first containing cavity, the inner ring fire cover is provided with inner ring fire holes communicated with the third containing cavity, and the gas conveying channel is communicated with the second containing cavity. The outer ring fire cover surrounds the inner ring fire cover, a clamping cavity is formed between the outer ring fire cover and the inner ring fire cover, the gas conveying channel is communicated with the second containing cavity, the tip end of the ignition needle is arranged in the clamping cavity and is not higher than the gas outlet end of the gas conveying channel, the tip end of the induction needle is arranged in the clamping cavity and is not higher than the gas outlet end of the gas conveying channel, and the fluid machine is suitable for providing blast air for the second containing cavity. The blast air can flow out of the air conveying channel to be supplemented to the flame roots of the inner ring fire holes and / or the outer ring fire holes, and due to the fact that the air outlet end of the air conveying channel is higher, interference of the blast air exhausted from the air conveying channel to ignition and fire sensing is reduced.

The utility model discloses a ventilation system device of incineration equipment. The ventilation system device comprises a shell, an air supply device, a feeding device and a smoke exhaust device. The air supply device comprises a fan, a main air supply pipe, a main air supply pipe supporting pipe, a branch air supply pipe and a combustion layer air supply pipe; the feeding device comprises a feeding opening formed in the top of the shell and a feeding sliding plate arranged in the shell below the feeding opening; the smoke exhaust device comprises a smoke exhaust pipeline, the smoke exhaust pipeline comprises two branches, one branch is arranged to be a smoke outlet connected with the atmosphere, and the other branch is connected with a furnace smoke pipe and used for being communicated with the fire-retardant flow guide cabinet. The device aims at ensuring smooth air circulation in the incinerator and timely discharging harmful gas, meanwhile, the incineration efficiency and the energy conversion rate are improved, and the problems that in the field of existing incineration equipment, garbage and other substances are not sufficiently combusted, colloidal agglomerates are formed and the like are solved.

To provide a water heating apparatus capable of effectively cooling a predetermined motor by a simple structure, without using a large-sized special member.SOLUTION: A water heating apparatus WH is equipped with a water heating apparatus body portion A that has a combustion device 8, a fan 1 and a motor M for driving the fan, and an air supply adaptor 4 attached to an upper wall portion 31 of an exterior case 3. The combustion device 8 and the motor M are located in an area near an upper part in the exterior case 3, and in plan view, the combustion device 8 is at least partially located between the air supply adaptor 4 and the fan 1. An air outflow port 42 of the air supply adaptor 4 opens in a generally horizontal direction while avoiding a direction facing the motor M, and air flowing out from the outflow port 42 advances while changing directions by a side wall portion 32c of the exterior case 3 to reach a position of the motor M.SELECTED DRAWING: Figure 1

This invention relates to the field of sludge treatment technology and provides an integrated device for low-heat-loss sludge drying and incineration. The device includes a frame, a drying unit, an incineration unit, a sludge conveying unit, a flue gas conveying unit, and a flue gas treatment unit. The flue gas conveying unit consists of an air intake mechanism and an inlet pipe. The air intake mechanism comprises a blower body, a drive assembly, a control assembly, a hollow main shaft, an annular frame, blower blades, and an adjustment assembly. The air intake mechanism can steplessly adjust the blower body's exhaust and suction air volume, output air pressure, and operating efficiency in real time. Based on real-time changes in the moisture content, feed amount, and organic matter content of the wet sludge, it can quickly adjust the blower body's exhaust and suction air volume, precisely control the heat supply of the annular flue gas heat exchange chamber, and precisely control the flue gas volume of the incineration unit. This stabilizes the optimal combustion condition of the incineration unit under a slightly positive pressure, completely solving the problems of positive pressure flue gas leakage or negative pressure cold air infiltration in the incineration unit, and reducing the fluctuation range of the combustion temperature in the incineration unit.

The utility model relates to the technical field of tail gas treatment, in particular to a tail gas incineration treatment device. Comprising a furnace body, the upper end of the furnace body is fixedly communicated with an exhaust pipe, a gas exhaust assembly is arranged in the furnace body and communicated with a gas pipe, a plurality of igniters are fixed in the gas exhaust assembly, a mixing assembly is fixed in the portion, below the gas exhaust assembly, of the furnace body, and a slag discharging opening is formed in one side of the lower end of the furnace body; a sealing plate is detachably and fixedly connected to the furnace body in a sealed mode, a guide plate is fixed in the furnace body, the end, facing the slag discharging opening, of the guide plate inclines downwards, the end, facing the slag discharging opening, of the guide plate is in smooth transition connection with the lower end of the slag discharging opening, a vibrator is fixed to the lower end of the guide plate, and a window is formed in the side wall, below the guide plate, of the furnace body. The conical piece is used for preliminarily dispersing and guiding tail gas and air, turbulent flow is reduced, and a stable flow field is formed; the spiral blades force the gas to rotate upwards, and the mixing uniformity of the gas flow is remarkably improved by combining the cutting effect of the disturbance rod.

This invention discloses a biomass pellet burner, comprising: a hopper including an inlet and an outlet; a screw feeder including a screw feed pipe, a screw feed rotating component disposed within the screw feed pipe, and a screw feed drive component connected to the screw feed rotating component, the outlet being disposed at a first end of the screw feed pipe; a combustion chamber disposed at a second end of the screw feed pipe; an air supply device including an air supply chamber and an air supply drive component connected to the air supply chamber, the air supply chamber including an air distribution chamber and a combustion chamber air chamber, the air distribution chamber communicating with the screw feed pipe, and the combustion chamber air chamber communicating with the combustion chamber; and an ignition device, a sealing plate disposed between the air distribution chamber and the combustion chamber, the inlet end of the ignition device being located within the air distribution chamber, and the outlet end of the ignition device being located within the combustion chamber. This invention avoids backflow and backfire by balancing the pressure of the screw feed pipe and the combustion chamber.

This utility model discloses a wood chip burner, including a frame and a combustion chamber mounted on it, and a fan connected to the combustion chamber. The combustion chamber has a feed inlet at the top, with a baffle slidably mounted on the feed inlet. A feed channel formed by multiple sets of guide plates and guide screens is located inside the combustion chamber below the feed inlet, and a discharge port is opened on the side of the combustion chamber along the discharge direction of the guide channel. The fan is connected to a second exhaust channel located above the guide channel via a first exhaust channel on both sides of the combustion chamber and a first exhaust port on it. Multiple sets of second exhaust ports are arranged along the discharge direction of the discharge port in the second exhaust channel. A storage chamber is located inside the combustion chamber below the guide channel, with a second guide screen slidably mounted inside the storage chamber. An ash outlet is opened at the bottom of the combustion chamber below the guide screens and the second guide screens in the guide channel. This is a novel wood chip burner.

A facility for control of a combustion apparatus comprising: a memory storing a limit value and a correction factor; a communication connection to a sensor and an actuator; and a processor. The processor: receives an input signal from the sensor; uses the signal to form a measured value specifying a fuel air ratio, an air ratio, and / or an oxygen content; and loads the limit value and compares the measured value with the limit value. If the measured value is less than or greater than the limit value, the processor either loads the correction factor and determines a correction value as a function of the limit value, the correction factor, and the measured value, or loads the stored correction value from the memory, and then creates an output signal as a function of the correction value and sends the output signal to the actuator.

The utility model belongs to the field of gas supply assemblies, and particularly relates to a gas supply assembly of a multi-stage rotational flow low-nitrogen burner, which comprises a gas cylinder, a connecting cover is slidably connected to the upper end of the gas cylinder, a connecting pipe is fixedly connected to the inside of the connecting cover, and a fireproof cover is fixedly connected to one end, far away from the connecting cover, of the connecting pipe. The end, away from the connecting pipe, of the fireproof cover is fixedly connected with a combustor gas supply pipe, and a backfire prevention mechanism is arranged in the fireproof cover. The inclined plane clamping frame, the inclined plane ring, the connecting nail and other structures are additionally arranged on the outer side of the gas cylinder, in the using process, the inclined plane ring can be pushed through the elastic force of the first spring to drive the inclined plane clamping frame to be clamped to the outer side of the connecting cover, then the connecting cover can be limited, and when disassembly is needed, only the inclined plane ring needs to be separated from the inclined plane clamping frame, and disassembly is convenient. And therefore, the gas cylinder can be more convenient to replace.

The invention relates to the technical field of gas stoves, in particular to a blower device for a combustor, the combustor and the gas stove, and aims to solve the problems that an existing blower device can only adjust the primary air volume by controlling the rotating speed of a fan, and the mode of adjusting the primary air inlet volume is single and not flexible enough. In order to achieve the purpose, the blower device for the combustor comprises a draught fan, a mounting mechanism and an adjusting mechanism, the draught fan is arranged on the mounting mechanism, and the mounting mechanism can communicate with an air outlet of the draught fan and an injection pipe of the combustor; the adjusting mechanism is arranged on the mounting mechanism and can adjust the primary air volume entering the injection pipe. The primary air volume entering the injection pipe can be adjusted through the adjusting mechanism, the adjusting modes of the blower device on the primary air volume entering the injection pipe are increased, and a user can flexibly select the adjusting modes according to actual needs.

This present invention relates to an eco-friendly ultra-high temperature thermal decomposition system for waste-to-energy, comprising: a thermal decomposition chamber to maintain temperature above 850°C without any auxiliary fuel; a double-layered air-curtain maker having ten vertical levels of air inlets to trap air pollutant materials for more than 2 seconds within the thermal decomposition chamber; central and lower oil nozzles to spray auxiliary fuel: an outer shredder to shred input materials to enhance treatment capacity; an inner shredder to shred the input materials and ash remaining at a bottom of the thermal decomposition chamber; a screw conveyor to feed the shredded input material and the ash into the thermal decomposition chamber; a thermal generation chamber to generate electricity; a steam chamber to regenerate electricity through boiler and steam-turbine generator; a dust collector to collect dust; and a monitoring device to monitor the results of a thermal decomposition process.

The application provides a kind of air distribution system and method of two combustion chamber combustion, two combustion chamber combustion air distribution system includes two combustion chamber body and be located on two combustion chamber body on air distribution unit and combustor, air distribution unit includes air mixer and air distribution assembly, air distribution assembly includes multiple air distribution branch pipes, air mixer and air distribution branch pipe are connected with first air distribution fan and second air distribution fan respectively, first air distribution fan and second air distribution fan can respectively pass through air mixer and air distribution branch pipe with combustion-supporting air into two combustion chamber body, and mix with flue gas in two combustion chamber body.Relative to prior art, in the two combustion chamber combustion air distribution system of the application, air mixer includes air collecting box and multiple sleeves on air collecting box, multiple sleeves are connected with air distribution pipe respectively, air distribution pipe is located in the inside of two combustion chamber body, first air distribution fan is transported to two combustion chamber body with combustion-supporting air through sleeve and air distribution pipe, can be effectively mixed with flue gas, cooperate with combustion-supporting device, and combustible substance in flue gas can be fully combusted.

The utility model discloses a kind of vehicle-mounted vegetable oil fuel range and vehicle of integrated cooking function, including furnace head structure and integrated control box, integrated oil pump, igniter and controller in the integrated control box, the oil pump is communicated with oil nozzle by oil pipeline, the oil nozzle extends to the combustion chamber of the furnace head structure, the ignition needle of the igniter is arranged in the combustion chamber, the control circuit of the controller is accessed the oil pump and the igniter control circuit.The utility model aims at providing a kind of vehicle-mounted vegetable oil fuel range and vehicle of integrated cooking function, not only solve the security risk and energy cost problem that exist in the use of liquefied petroleum gas of traditional vehicle-mounted gas stove, but also fully consider the restriction of vehicle interior space and the stability and safety of equipment.

The invention provides a staged vortex suppression rectification air inlet device and an air inlet control method. The air inlet device is connected between an upstream gas-air mixer and a downstream boiler hearth. Fuel gas-air mixed gas entering from the gas inlet end of the gas inlet device sequentially passes through the first-stage centrifugal separation section, the second-stage reverse rotation correction section, the third-stage divergent rectification section and the fourth-stage guide vortex control section to be subjected to ordered flow field reconstruction, and uneven inlet gas flow is gradually converted into outlet gas flow which is uniform in height and controllable in direction.

The invention discloses a pulverized coal burner with a hydrogen-containing fuel burning nozzle, which is characterized in that pulverized coal and air mixed gas is output to a burning area through a first air pipe assembly, hydrogen-containing stable burning fuel is output to the pulverized coal and air mixed gas through a first fuel pipe assembly, and the pulverized coal and air mixed gas is ignited by an igniter; and an inner side second air pipe assembly, a second fuel pipe assembly and an outer side second air pipe assembly which are sequentially arranged in a sleeving manner are arranged, so that an inner side annular mixed flow and an outer side annular mixed flow which surround the pulverized coal and air mixed gas are respectively formed. According to the embodiment, the hydrogen burning nozzle in a micro-mixing diffusion burning mode is additionally arranged on a traditional coal burning burner, two paths of fuel enter, one path of fuel is ignited and stably burnt at the center of the burner, and the second path of fuel is divided into two paths from an inner second air path and an outer second air path to participate in burning and is responsible for increasing the air temperature and reducing the ignition delay time of pulverized coal; and the three paths of sprayed gas adopt a micro-mixing diffusion combustion mode, so that the conditions of tempering and sharp increase of NOx caused by a large-area high-temperature area are avoided.

The invention relates to the technical field of boiler combustion control, and discloses a novel combustion optimization method and optimization system for blending combustion of Indonesia coal in a boiler, and the combustion optimization method comprises the following steps: for a front and rear wall hedging swirling combustion boiler, adding a compensation air nozzle above a hedging combustor at the uppermost layer of the front and rear walls; for a four-corner tangential combustion boiler, compensation air nozzles are additionally arranged above four corner combustors of a four-corner tangential combustor; a compensation air baffle and an adjusting mechanism are arranged in each compensation air nozzle, and each adjusting mechanism can adjust the posture of the compensation air baffle under the control of a remote DCS (Distributed Control System), so that the compensation air sprayed by the compensation air nozzles is adjusted; the remote DCS controls the air volume ratio and the starting state of the compensation air and the original over fire air; the compensation air nozzle is additionally arranged, compensation air and original over fire air are used for jointly controlling boiler combustion, and the boiler has the advantages that the flame center is prevented from moving upwards, the service life of metal parts of the boiler is prolonged, and the coal burnout degree is guaranteed.

This invention provides an oxygen supply mechanism for a pulverized coal combustion device, comprising an oxygen-enriched channel, a central body, and a control component. One end of the oxygen-enriched channel is a nozzle extending through the pulverized coal channel, while the other end is located outside the pulverized coal channel and connected to an oxygen evaporation device. The nozzle includes a gradually expanding section that points outward along the axial direction of the nozzle, with its inner diameter gradually increasing. The central body is adjustable within the nozzle along its axial direction, forming an annular flow channel between the central body and the inner wall of the nozzle. One end of the control component is connected to the central body, and the other end extends to the outside of the pulverized coal channel. This oxygen supply mechanism allows for adjustment of the annular flow channel area by changing the position of the central body, enabling flexible control of the oxygen flow rate. This ensures optimal mixing of pulverized coal and oxygen under different load conditions and pulverized coal concentrations.

The utility model discloses a general type steam boiler, including the furnace shell, the lateral surface of furnace shell is passed through movable joint and has the sealing door cover, the lateral surface of furnace shell is erected and has the movable joint of air -blower, the upper end movable joint of furnace shell has the sealing cover, the lower extreme fixed connection of furnace shell has a plurality of base, the lateral surface fixed connection of sealing door cover has the first handle, the lateral surface fixed connection of furnace shell has the symmetry of rotary seat, the inside fixed connection of furnace shell has the symmetry of limit slot, movable joint in limit slot between furnace jar, the upper end of furnace shell is equipped with the heat dissipation hole, the sealing cover movable connection in heat dissipation hole, the lower extreme of furnace shell is passed through movable joint and has the steam stove, the lower extreme fixed connection of furnace shell has the sealing shell, the other side fixed connection of furnace shell is passed through and has the exhaust pipe. Through above -mentioned structure, can easily overhaul and maintain furnace jar, ensure that boiler operation is safe and stable, and simple and efficient operation enhances fuel combustion efficiency.

The invention discloses a full-premixing fuel gas wall-hanging stove and a silencer thereof. The full-premixing fuel gas wall-hanging stove comprises a pipe body, cylindrical silencing cotton and a flow guide part. The flow guide part comprises a mounting frame and a flow guide cone, the flow guide cone is fixed in the tube body, the barrel-shaped silencing cotton is attached to the inner wall of the tube body and surrounds the outer portion of the flow guide cone, the flow guide cone comprises a forward cone and a reverse cone which are connected on the same bottom face, and the flow guide cone can guide airflow to pass stably, reduce air inlet pressure drop and guarantee stable value of the Venturi tube; the combustion stability is improved, generation of thermoacoustic oscillation noise is reduced from the source, the flow guide cone can enable sound waves to enter the cylindrical silencing cotton at a large angle and turn back in the pipe body, the sound waves are effectively absorbed by the silencing cotton, meanwhile, the flow guide part forms a variable-diameter channel, air is compressed or expanded to deform, sound energy is further consumed, and the noise reduction effect is achieved. And outward propagation of thermo-acoustic oscillation noise is inhibited. The barrel-shaped silencing cotton is formed by combining the sound absorption cotton layer with high-density honeycomb holes and the sound insulation felt layer, and sound waves of all frequency bands are effectively reduced.

The invention provides a peak shaving system utilizing coal-fired boiler secondary air to be matched with a solid heat storage device, and belongs to the field of thermal power generation and industrial steam. The problem that the thermal power generating unit quickly responds to the variable load rate is solved. A hot secondary air fan and a hot primary air fan are both connected with an air preheater, the air preheater is connected with a boiler through a hot secondary air duct, and the rear portion of the boiler is connected with a steam turbine and a generator module. The solid heat storage and energy release module is connected with the hot secondary air duct, a hearth side hot secondary air duct baffle and a heat storage element side hot secondary air duct baffle are arranged on the hot secondary air duct and used for controlling the air trend, and the coal mill is connected with the hot secondary air duct through the hot primary air duct. According to the system, the solid heat storage device is integrated, the temperature of secondary air entering the boiler is reduced, and therefore the heat storage capacity in a boiler hearth is improved, quick response of a coal pulverizing system and a steam-water system during quick load changing is achieved, and the flexibility of a unit is remarkably improved.

The present invention relates to a system (S1) for generating thermal energy from the combustion of metal particles, comprising a metal particle burner in a combustion chamber (4), means (100) for injecting metal particles into the burner means, means (5, 6) for introducing air to form a premixture of air and the metal particles, means for capturing oxidized particles in the exhaust gases, either downstream of or associated with the first heat exchange means, and a heat exchanger (7) for exchanging heat between a transfer fluid and the combustion chamber (4) to transfer a portion of the thermal energy of the combustion to a user device (13). The system further comprises a loop (20) for recirculating a first fraction (22) of the exhaust gases coming from the combustion chamber (4), the loop having a gas extraction inlet downstream of the combustion chamber (4) and a gas injection outlet upstream of the burner means (3).