511results about "Solid removal" patented technology

The invention belongs to the field of artificial intelligence, particularly relates to a boiler soot blower fault diagnosis method and device based on deep learning driving, and aims to solve the problems that traditional manual inspection and threshold alarm response is lagged, the false alarm rate is high, and expert experience is relied on. The method comprises the following steps: constructing a multi-modal data fusion architecture, synchronously collecting sensor time sequence data, voiceprint signals and execution mechanism logs, inputting the data into a multi-branch feature extraction network after time-space alignment and normalization, respectively extracting spatial anomaly, time sequence evolution and spectrum features, and dynamically fusing through a cross-modal gating mechanism to generate a joint representation vector; a self-adaptive small sample diagnosis model is input, and cross-domain generalization and fault type discrimination are realized in combination with a meta-learning framework; and finally deducing a fault trend by an evolution prediction sub-module. According to the method, the diagnosis real-time performance, accuracy and perspectiveness are remarkably improved, the unplanned shutdown risk is reduced, safe and stable operation of the thermodynamic system is guaranteed, and good engineering compatibility and interpretability are achieved.

The invention belongs to the technical field of boiler waste heat, gas and pressure utilization, and particularly relates to a lifting type intelligent soot blowing system and method for low-temperature area deposited soot, and the soot blowing system comprises a primary air pressurization soot blowing system, a vertical guide rail advancing soot blower and an intelligent control module. And the intelligent control module uses a blockage prediction intelligent algorithm and a dynamic soot blowing strategy. The primary air pressurization soot blowing system leads out part of dust-free primary air from an outlet of a boiler air pre-heater to serve as soot blowing primary air, and the dust-free primary air is conveyed to a lifting soot blower driven by a vertical guide rail after being pressurized to 0.5-0.8 MPa. The primary air pressurization soot blowing system is deeply coupled with the low-temperature economizer warm flue gas system, primary air is used as a soot blowing medium, the temperature of the soot blowing medium is about 320-350 DEG C, ammonium bisulfate condensate can be effectively dried and removed, and fly ash adhesion is reduced; and the soot blowing coverage rate reaches 100%, soot blowing according to needs is achieved, and the operation stability and economical efficiency of the unit are remarkably improved.

The invention belongs to the technical field of thermal power generation intelligent control, and discloses a boiler heating surface soot blowing opportunity judgment method and device, equipment and a medium, an input signal is constructed according to the load change rate, a compensation coefficient is output through a trained correction model, a boiler heating surface cleaning factor is compensated, and a soot blowing opportunity judgment result is obtained. Identifying that the boiler is in a statistical controlled stable operation interval, collecting historical measurement values of the compensation cleaning factor under various working conditions, and determining a safe operation lower limit; performing sliding window filtering processing on the current measurement value of the compensation cleaning factor to obtain a target cleaning factor; and if the target cleaning factor is continuously lower than the safe operation lower limit and exceeds the set duration, generating a soot blowing trigger instruction, thereby realizing dynamic compensation of the cleaning factor in a rapid variable load state and accurate screening of the stable operation state of the boiler, reducing misjudgment of the soot blowing opportunity, improving the accuracy of determination of the soot blowing opportunity of the heating surface of the boiler, and improving the reliability of the soot blowing opportunity. And intelligent control over soot blowing operation is improved.

The invention relates to an intelligent sound wave soot blowing method, system and terminal for a coal-fired boiler flue, and belongs to the technical field of coal-fired boiler flue cleaning.The intelligent sound wave soot blowing method comprises the steps that environmental parameters in the coal-fired boiler flue are monitored in real time; calculating sound wave parameters according to the environmental parameters; according to the sound wave parameters, a sound wave emitter is controlled to emit needed sound waves to a flue; the ash removal effect of accumulated ash in the flue is monitored; and according to the feedback ash removal effect, sound wave parameters are optimized so that sound wave energy can be evenly distributed in the flue. The flue dust removal device has the beneficial effect that the dust removal efficiency of the flue of the coal-fired boiler is improved.

The utility model discloses a boiler cleaning structure, which belongs to the technical field of boilers, and adopts the technical scheme that the boiler cleaning structure comprises a biomass boiler body, the inner side of the biomass boiler body is in bolted connection with a wall scraping structure, the inner side of the biomass boiler body is in inserted connection with a collecting structure, and the bottom of an electric push rod is in bolted connection with the top of the biomass boiler body. The output end of the electric push rod is slidably connected with the inner wall of the biomass boiler body, the bottom of the electric push rod is in bolted connection with the top of the fixing frame, the outer side of the fixing frame is fixedly connected with the inner side of the connecting block, and in the biomass fuel combustion process of an existing biomass boiler, a large amount of impurities such as ash and coke residues can be generated. The impurities are attached to the heating surface of the boiler, so that the heat exchange efficiency of the boiler is reduced, the energy consumption is increased, and the normal operation of the boiler is influenced.

The invention relates to the technical field of ash removal, in particular to a flue ash removal device which comprises a supporting plate. The scattering assembly is arranged at one end of the supporting plate and comprises a rotating main shaft, a framework which is arranged on the outer wall of the main shaft and plays a supporting role, and stirring blades which are arranged outside the framework; the buffering assembly is arranged on the outer wall of the supporting plate; the device provided by the invention is integrally arranged in a flue of a thermal power plant, a buffer supporting wheel of the middle supporting assembly is in contact with the inner wall of the flue to provide stable support, a motor is started, a left side barrel rotates, and dispersion blades on the outer wall of the middle supporting assembly periodically beat the inner wall of the flue to shake off accumulated dust; and meanwhile, the device slowly moves along the axis of the flue, the conical plate on the right side moves along with the device, accumulated ash which is shaken off is shoveled away and continuously pushed towards the ash discharging opening, and finally efficient cleaning of the flue is achieved.

To safely remove arching during operation of a combustion plant equipped with a boiler, without damaging the hopper below the boiler. [Solution] The removal system 1 includes a projectile launcher 22 that launches projectiles towards an arching formed by fly ash 21 that has fallen from the flue 5 into the boiler lower hopper 16 through an opening 23 formed in the wall surface of the boiler lower hopper 16, and a temperature sensor 26 that measures the temperature of the outer or inner surface of the boiler lower hopper 16 below the arching and near the hopper outlet 17, or the outer or inner surface of the falling fly ash transfer device 18 near the hopper outlet 17, or the outer or inner surface of the piping 28, and a pressure sensor 25 that measures the air pressure inside the falling fly ash transfer device 18, or either one or both. The control device 29 launches projectiles from the projectile launcher 22 during the operation of the combustion plant 2 based on the temperature information measured by the temperature sensor 26 or the air pressure information measured by the pressure sensor 25.

To realize a configuration capable of curbing an increase in a concentration of carbon monoxide contained in processed gas produced after exhaust gas produced when exhaust gas after combustion of thermal decomposition gas undergoes a process in a woody biomass gas combustion facility in which the thermal decomposition gas generated through thermal decomposition of woody biomass undergoes combustion.SOLUTION: A woody biomass gas combustion facility 1 comprises: a filter 23 which collects particles in thermal decomposition gas obtained from woody biomass; oxidation catalyst reaction device 16 which oxidizes carbon monoxide contained in exhaust gas produced when the thermal decomposition gas undergoes combustion with a gas engine 15; a particle removal mechanism 25 which performs particle removal operation; an oxidation gas supply device 40 which mixes the exhaust gas with oxidation gas; and a control device 30 which controls drive of the oxidation gas supply device 40 so as to mix the exhaust gas with the oxidation gas when the particle removal mechanism 25 performs the particle removal operation.SELECTED DRAWING: Figure 1

The invention relates to the technical field of air preheaters and discloses a low-resistance anti-ash-blocking air preheater which comprises a flue gas channel, a primary air channel, a secondary air channel, a heat storage element and an air guide pipe, the flue gas channel is used for high-temperature flue gas to pass through, the primary air channel is used for primary cold air to pass through, and the secondary air channel is used for secondary cold air to pass through. The heat storage element is used for exchanging heat with flue gas in the flue gas channel so that sulfides in the flue gas can be liquefied, the heat storage element communicates with the primary air channel and the secondary air channel, and cold air in the primary air channel and cold air in the secondary air channel can pass through the heat storage element and conduct heat exchange with the heat storage element. One end of the air guide pipe communicates with an outlet of the primary air channel, and an opening in the other end of the air guide pipe faces the heat storage element. According to the low-resistance anti-ash-blocking type air preheater, hot air of the primary air channel serves as a blowing medium, the hot air temperature is high, ammonium bisulfate with high viscosity on the heat storage element can be softened, and the adsorption capacity of the ammonium bisulfate to fly ash is reduced.

This invention belongs to the field of flue cleaning technology, specifically a flue cleaning device, including a flue shell. The flue positioning device includes a base plate with protective shells on both sides. A top column is fixed to the upper surface of the base plate, and four cleaning components arranged in a circular array are fixed to the circumferential surface of the top column. Each cleaning component corresponds to the inner wall of the flue on each side. Each cleaning component includes a scraper fixed to the circumferential surface of the top column; an electric push rod fixed to the upper surface of the base plate; a push plate fixed to the output end of the electric push rod; and a cleaning plate slidably disposed on the upper surface of the scraper. An auxiliary plate is slidably disposed on the lower surface of the cleaning plate, and the bottom end of the auxiliary plate has an inclined surface adapted to the push plate. By designing the cleaning components, the problem of some highly adhesive ash continuously accumulating and adhering to the top of the scraper is solved.

The utility model discloses a thermal power plant boiler soot blower pipeline connecting structure which comprises a soot blower pipeline and a boiler pipeline, the soot blower pipeline is arranged on one side of the boiler pipeline, the outer wall of one end of the soot blower pipeline is communicated with a variable-diameter pipeline in a welding mode, the section of the variable-diameter pipeline is of an isosceles trapezoid structure, and the section of the variable-diameter pipeline is of an isosceles trapezoid structure. A rubber pad is bonded to the outer wall of the variable-diameter pipeline, the thickness of the rubber pad is 5 mm, and a steel wire is embedded in the rubber pad. The innovative design that the cross section of the variable-diameter pipeline is in the shape of the isosceles trapezoid is adopted, the unique structure endows the connecting structure with strong adaptive capacity, after the variable-diameter pipeline is inserted into the boiler pipeline, the rubber pad adhered to the outer wall of the variable-diameter pipeline can be tightly extruded with a port of the inner wall of the boiler pipeline, and the variable-diameter pipeline can be in butt joint with boiler pipelines with different calibers. The universality and the market adaptability of the product are greatly improved, and the installation limitation and the cost caused by the caliber difference of the boiler pipeline are reduced.

The invention discloses a soot blower control method and device, a storage medium and computer equipment, and relates to the technical field of air pre-heater maintenance. The method is used for controlling a soot blower of the air pre-heater and comprises the steps that when the soot blower runs, the blowing air pressure value of the soot blower and the real-time opening value of a control valve of the soot blower are monitored, and the blowing air pressure value is compared with a preset air pressure upper limit value; when the blowing air pressure value is lower than the air pressure upper limit value, an air pressure difference value between the blowing air pressure value and a preset air pressure set value is calculated, and a control valve opening target value of the control valve is determined based on the opening value and the air pressure difference value; and adjusting the opening degree of the control valve of the soot blower according to the control valve opening degree target value, so that the opening degree value of the control valve is maintained at the control valve opening degree target value, and the blowing air pressure value of the soot blower approaches to the air pressure set value. According to the scheme, the soot blowing effect on the air pre-heater can be improved.

The invention provides a boiler tail flue gas waste heat recovery equipment front bottom accumulated dust cleaning device which comprises a dust collecting assembly and a dust collecting assembly, the dust collecting assembly comprises a dust collecting box, a dust collecting bin and a negative pressure bin are arranged in the dust collecting box, an air inlet and an air outlet are formed in the side wall of the dust collecting box, a filtering piece is arranged between the dust collecting bin and the negative pressure bin, and a negative pressure fan is arranged in the negative pressure bin; the sweeping assembly comprises a dust collection hose, a hard pipe, a handheld pipe, an equipment bin, a dust collection cover, a servo motor and a brush head, the output end of the hard pipe is communicated with the air inlet through the dust collection hose, the handheld pipe is connected to the hard pipe through a connecting piece, the equipment bin is arranged at the end of the handheld pipe, the dust collection cover is arranged in the equipment bin, and the servo motor is arranged in the equipment bin; the brush head is arranged in the dust collection cover and connected with the servo motor, and the input end of the hard pipe is communicated with an inner cavity of the dust collection cover. The device can remarkably reduce the labor intensity of manual cleaning, solves the problem that dead corners are difficult to touch in a traditional mode, and improves the thoroughness of cleaning and the working efficiency.

The utility model relates to the technical field of soot blowing, in particular to a high-cleanliness shock wave soot blower which comprises a soot blower body, a bearing ring is arranged on the inner wall of an exhaust port in the soot blower body, a turning plate is hinged to the bearing ring through a torsional spring hinge, a plurality of buffering holes are formed in the bearing ring in the circumferential direction, and the buffering holes are formed in the blowing direction of airflow. The hole depth of each buffering hole is gradually reduced in the direction away from the hinged position of the turning plate and the bearing ring in the circumferential direction, sealing rings used for sealing the buffering holes are arranged on the bearing ring, a sliding plug slides in each buffering hole, a pressure spring is supported between each sliding plug and the corresponding sealing ring in a jacking mode, and the sliding plugs penetrate out of the buffering holes in a sliding mode and are used for abutting against the turning plate. The soot blower has the advantage that the possibility that impurities in the boiler fly into the soot blower, and then the cleanliness of the interior of the soot blower is affected is reduced.

This utility model relates to the field of drying processing technology, and discloses a heat recovery drying hot air furnace, including a shell, a bottom plate, a hot air combustion furnace, a heat exchange pipe, an exhaust treatment device, a heat exchange blower, and an ash removal trough. The hot air combustion furnace is equipped with an air outlet at the top and a heat exchange blower at the bottom to blow the hot air generated by the combustion inside, supplying the hot air to the tea drying. The combustion exhaust gas then enters the heat exchange pipe, first flowing downwards through the air inlet channel, then upwards through the upper air pipe, and finally exiting from the top of the heat exchange pipe into the exhaust treatment device. All of these exhaust gases are eventually discharged. A heat exchange blower is located on the outside of the large shell, blowing air into the shell to expel the heat emitted by the heat exchange pipe and the exhaust treatment device, as well as some of the heat from the hot air combustion furnace, to supplement the drying process. This allows for heat energy recovery and reduces heat energy loss.

The utility model relates to the technical field of soot blowers, and discloses a boiler soot blower which comprises a boiler shell and an ultrasonic generation assembly fixedly installed on the outer side of the boiler shell through a supporting seat, a loudspeaker is rotatably installed on the inner side of the boiler shell through a hinged support, a connecting base is fixedly installed on the inner side of the boiler shell, and the connecting base is fixedly connected with the ultrasonic generation assembly. The inner side of the connecting base is rotationally connected with a threaded transmission rod through a transmission assembly, the periphery of the threaded transmission rod is connected with an adjusting rod in a threaded fit mode, the top of the adjusting rod penetrates through a limiting shell at the top end of the connecting base and is slidably connected with the inner side of the limiting shell, and the top end of the adjusting rod is hinged to the bottom of a loudspeaker through a sliding assembly. A pipeline installer is fixedly installed in the boiler shell, and one end of the pipeline installer communicates with the ultrasonic generation assembly. The boiler soot blower has the advantages that the angle of the soot blowing pipe can be changed, and the overall soot blowing effect of the boiler soot blower is improved.

The application relates to a Monroe-effect enhanced shock wave generating device, which comprises a tank body, one end of the tank body is provided with an inlet for mixed gas, the other end of the tank body is provided with an outlet and connected with a shock wave output end, an inner cone and an efficiency ring are arranged in the tank body, the inner cone is adjacent to the inlet, the top of the inner cone is towards the inlet and provided with a turbulence passage for the mixed gas, the efficiency ring is spaced opposite to the inner cone along the axial direction of the tank body, and the central hole of the efficiency ring is connected with the shock wave output end. In the application, the turbulence passage of the inner cone can mix the mixed gas again, the mixing degree of the mixed gas is improved, a conical cavity is formed between the inner cone and the tank body, based on the Monroe effect, the inner cone can both concentrate energy and enhance the effect and indicate the direction of the shock wave during the shock wave generating process, energy loss is prevented, and the efficiency ring cooperates with the inner cone and blocks the backflow of smoke and dust.

This utility model relates to the field of flue dust removal technology, and in particular to a water-sealed flue dust removal device, comprising: a water tank that slides below the flue via a sliding mechanism, wherein the ash discharge pipe of the flue extends into the water tank; wherein the water tank includes four peripheral surfaces and an ash-accumulating bottom surface and a sealing bottom surface connected between the bottoms of the four peripheral surfaces, the sealing bottom surface being located above the ash-accumulating bottom surface. This utility model's dust removal device uses the water tank to water-seal the bottom of the ash discharge pipe, allowing the soot in the flue to fall into the water tank for collection. After collection, the position of the water tank can be changed to move it to one side for dust removal. During the dust removal process, the sealing bottom surface water-seals the bottom of the ash discharge pipe again to ensure operational safety during the dust removal process, achieving online cleaning of flue dust accumulation. The overall structural design is simple, effectively improving the convenience of flue dust removal operations.

The utility model relates to the technical field of boiler cleaning equipment, and discloses a detachable boiler ash removal device which comprises a base body, a driving motor is fixedly arranged in the base body, an auger and a driving bevel gear are rotationally arranged in the base body, the output end of the driving motor is connected to one end of the auger, and the output end of the driving bevel gear is connected to the other end of the auger. One end of the auger and one end of the driving bevel gear are each fixedly provided with a belt wheel, a belt is arranged between the two belt wheels in a transmission mode, the ash scraping assembly is movably arranged in the base body, and the ash scraping assembly comprises a rotary drum, a scraper, a first driven bevel gear, an adaptive block, a first co-moving bevel gear, a second co-moving bevel gear, a second driven bevel gear and a cam. A first driven bevel gear, a driving bevel gear and a second driven bevel gear are meshed to drive a first co-moving bevel gear and a second co-moving bevel gear to be meshed, so that a cam is adjusted to eject an adaptive block to move, a compression spring is matched to contract, the adaptive block drives a scraper to elastically vibrate, attached pan ash is shaken off, and deposition is avoided.

The utility model discloses a flue dust removal device suitable for solid waste incineration, the flue dust removal device is suitable for a solid waste incineration system, the solid waste incineration system comprises a flue, the flue is used for flue gas after solid waste incineration to pass through, and the flue dust removal device comprises a catalytic device arranged in the flue, the catalytic device is used for carrying out catalytic reduction treatment on harmful substances in the flue gas; and the high-pressure purging device is communicated with the flue, and the high-pressure purging device sprays high-pressure air flow into the flue in a directional manner so as to blow glass fibers or floccules carried in flue gas away from the flue.

The utility model relates to the technical field of boilers, and provides a directional handheld boiler smoke tube ash removal gun which comprises an ash removal gun body, a gun tube, a silicon rubber hose and a connecting plate fixedly installed at one end of the outer side wall of the silicon rubber hose. A plurality of L-shaped plates are fixedly mounted on one side of the connecting plate in sequence in a circular array; by rotating the silicone rubber hose towards one side, the L-shaped plate is clamped on the outer side of the connecting block, while the L-shaped plate is clamped on the outer side of the connecting block, the L-shaped plate extrudes the first limiting pin and the first spring to contract, and after the L-shaped plate is clamped on the outer side of the connecting block, the first spring drives the first limiting pin to reset; the first limiting pin is inserted into the first limiting hole for limiting and fixing, so that the purpose of lengthening the gun barrel is achieved, ash removal can be conveniently carried out on a long or deep smoke pipe, and the silicon rubber hose has high temperature resistance, so that the silicon rubber hose is prevented from being damaged by residual heat in the smoke pipe.

The utility model provides a leakage-proof device of an air preheater. The leakage-proof device comprises a driving mechanism; one end of the transmission shaft is connected to the output end of the driving mechanism; one side of the sealing box rotates relatively and is arranged on the transmission shaft in a sealing and sleeving manner, and the part of the wall surface of the sealing box is separated from the transmission shaft; the fan is used for enabling cold air to flow to waste heat according to a preset direction, the fan is connected to the other end of the transmission shaft so as to be driven by the driving mechanism to rotate, and the other side of the sealing box is connected to the back face of the fan in a sealing mode; the negative pressure device is used for forming a negative pressure space, and the negative pressure device is communicated with the sealing box; wherein the sealed space is used for accommodating dust. Compared with the prior art, the utility model adopts the mode of active collection and negative pressure discharge, so that the requirement on sealing performance can be reduced, the technical complexity and cost of equipment can be further reduced, and meanwhile, the dust cannot fly away at will to cause pollution and sanitation problems.

The invention discloses a high-pressure water soot blower convenient to adjust and a control method thereof, and particularly relates to the technical field of soot blowers.The high-pressure water soot blower convenient to adjust comprises a soot blowing box and a connecting plate and further comprises a driving part, the driving part comprises a moving box, a moving pipe is rotationally connected into the moving box, and an adjusting part comprises an adjusting head which communicates with the moving pipe; two symmetrically-arranged spray heads are rotationally connected into the adjusting head, a limiting mechanism is arranged between the adjusting head and the spray heads, when the movable pipe enters the pipe box from the outside, each spray head swings in the direction away from the movable box, and when the movable pipe moves outwards from the interior of the pipe box, each spray head swings in the direction close to the movable box. And the limiting mechanism can limit different swing positions of the spray head, soot blowing dead angles on the inner wall of the heat transfer pipe can be eliminated, and meanwhile the service life of the spray head is prolonged.

The application discloses a flue gas waste heat cascade comprehensive utilization device based on a gas generator, relates to the technical field of flue gas waste heat utilization, and can realize cascade recovery of flue gas waste heat, and the waste heat of high-temperature flue gas flowing through the front end section can be used for high-temperature heating in a boiler core, and the waste heat of subsequent medium and low-temperature flue gas can be used for step-by-step heat preservation and preheating of the boiler, thereby effectively avoiding the problem that high and low temperature heat is neutralized in traditional single-pipeline heat exchange, improving the concentrated utilization efficiency of high-grade waste heat to a certain extent, and facilitating the cascade matching and quality recovery of energy.

The invention relates to the technical field of thermal power generation equipment state monitoring and intelligent operation and maintenance, in particular to an ash deposition monitoring and ash blowing optimization method and system for a rotary air preheater, and the method comprises the steps: S1, collecting a temperature data set and a visual image of the rotary air preheater; s2, constructing a dynamic temperature difference field, and determining an ash deposition area; s3, generating a dust deposition diagnosis result; and S4, soot blowing is carried out, the temperature data set and the visual image are collected again after soot blowing, and soot blowing operation is carried out again after soot blowing parameters are dynamically adjusted. The system comprises a temperature acquisition unit used for acquiring a temperature data set; the laser positioning subunit is used for calibrating the distance between the infrared array sensor and the rotor heat storage element in real time and dynamically correcting the temperature measurement value according to the distance change; an image acquisition unit; a data processing and control unit; an early warning unit; and a closed loop verification unit. The problems of high ash deposition misjudgment rate and large ash blowing energy consumption caused by single perception and one-sided model of a monitoring method in the prior art are solved.

This utility model discloses a biomass boiler ash removal device with anti-clogging function, comprising: a conveying pipe, one end of which is connected to the boiler, a first pipe extending upwards from the other end of the conveying pipe, and a second pipe extending downwards from the other end of the conveying pipe; and an ash removal structure disposed inside the conveying pipe, which scrapes away the accumulated soot inside the conveying pipe. This utility model can effectively and promptly remove soot, prevent clogging, ensure normal boiler operation, improve boiler efficiency, and reduce the frequency of downtime maintenance.

The invention relates to the technical field of boilers, and provides a steam optimization production method and equipment for a steam injection boiler of a thickened oil recovery coal-fired fluidized bed, and the production method comprises the steps: 1, constructing a coupling model of a water supply quantity feedback controller and a steam dryness feedforward predictor, 2, training and optimizing the coupling model in a data driving mode, wherein the coupling model is used for predicting the dryness of steam produced under the data conditions of specific water supply quantity, fuel characteristics and fluidization air quantity; 3, inputting current water supply quantity, fuel characteristics and fluidization air quantity data, and predicting the dryness of steam produced under the current production condition by utilizing the trained model; 4, based on the predicted steam dryness, on the basis of steam dryness prediction, under the current water supply condition, on the basis of mean square errors of the predicted steam dryness and rated steam dryness, fuel characteristics and fluidization air volume data are optimized and adjusted, and steam optimized production is achieved; a feedforward predictor is constructed through a time-varying long-short-term memory network, and accurate capture is achieved.

The invention discloses a carbon black tail gas boiler gravity self-deashing environment-friendly structure which comprises a low-temperature plate type economizer, a communicating flue and an air preheater, the communicating flue is in an inverted-U shape, the low-temperature plate type economizer and the air preheater are communicated through the inverted-U-shaped communicating flue to form a relatively independent space, and the low-temperature plate type economizer is of a plate type light pipe structure. The plate-type light pipe structure comprises a plurality of groups of heat exchange units, each heat exchange unit is a pipe panel formed by a plurality of rows of coiled pipes connected in parallel, the pipe panels are arranged in sequence, the pipe panels adopt a large-pitch design, and the pitch between the pipe panels is 100mm; the problem that the tail heating surface of the carbon black tail gas boiler is prone to dust accumulation and blockage is solved, the corrosion condition of the tail heating surface is improved, the service life of a low-temperature economizer and an air preheater is prolonged, the heat transfer efficiency of the heating surface is guaranteed, fan energy consumption is reduced, the stable operation period of the boiler is prolonged, and the blowing-out overhaul and dust removal frequency is reduced. Not only can cost reduction and benefit increase be realized, but also energy conservation and environmental protection are realized.

The utility model relates to a flue ash cleaning device. A motor is arranged in a motor protection cover; a rotating shaft of the motor is connected with a rotating rod capable of adjusting the length, and the fan is arranged at the bottom of the rotating rod; the brush is arranged on the periphery of the fan, a dust discharging bent pipe is arranged on the side wall of the dust box, and a dust collecting bag is arranged at the tail end of the dust discharging bent pipe. The rotating rod is driven by the motor to rotate, the brush and the fan are driven to rotate, the brush can loosen and scatter cigarette ash in a flue, deep cleaning of the flue is achieved, and it is guaranteed that the cigarette ash is thoroughly removed; the fan rotates to accelerate the flow rate of surrounding airflow, a pressure difference is generated inside and outside the device, loose soot in the flue is sucked into the soot box, the soot is prevented from escaping, and the harm to human bodies and the pollution to the environment after the soot enters the air are avoided; and the cleaned ash falls into the ash collecting bag through the ash bent pipe, so that efficient collection of the ash is realized.

The utility model relates to the technical field of heat accumulator ash removal, in particular to an injection type pulse injection ash removal structure. The ash removal structure comprises a heat storage box, an air inlet pipeline and an injection type pulse assembly. The heat storage box is communicated with the air inlet pipeline; the air inlet pipeline is connected with an external air blower; a heat storage body is accommodated in the heat storage box; one end of the injection type pulse assembly is an air inlet, is arranged outside the air inlet pipeline and is communicated with compressed air, and the other end of the injection type pulse assembly is an air nozzle, is arranged in the air inlet pipeline and is arranged in the same direction as the air inlet flow direction; the injection type pulse assembly further comprises a pulse valve arranged between the air inlet and the air nozzle. According to the utility model, the ash removal operation of the heat accumulator can be completed at low cost.