1193results about "Solid removal" patented technology

The present invention relates to the technical field of waste heat recovery equipment, and specifically discloses a waste heat recovery device for flue gas in a thermal power plant. It includes a box body with an upper smoke chamber, a heat exchange chamber and a lower smoke chamber inside. A number of smoke pipes connecting the upper smoke chamber and the lower smoke chamber are fixed in the heat exchange chamber; above the smoke pipes, there is a piston cylinder fixed by the box body; the upper end of the piston cylinder is connected to a high-pressure gas supply pipe, and a piston is arranged inside. The piston is connected with a scraping head through a push rod; side holes are provided on the push rod; when the high-pressure gas drives the piston to move downward, the scraping head moves along the inner wall of the smoke pipe to scrape off the ash slag. The waste heat recovery device for flue gas in this thermal power plant has a cleaning function and a better cleaning effect, high heat exchange efficiency and good waste heat recovery effect. The waste heat recovery device for flue gas in this thermal power plant can be automatically cleaned without disassembling components, is fast and efficient, and can be operated online. The ash slag scraped off during the cleaning process can be centrally recovered, avoiding re-mixing into the flue gas again, reducing the workload in the flue gas dust treatment link, and saving the subsequent environmental protection treatment cost.

The invention provides a soot blowing control method, device and equipment for a boiler and a storage medium, and the method comprises the steps: collecting a soot deposition state image of a heating surface of the boiler in real time through visual equipment, carrying out the segmentation and feature extraction of the image, and generating an initial detail feature vector; reconstructing a dust deposition feature image based on the feature vectors, further segmenting and extracting basic local feature vectors, and generating a final dust deposition state image; and classifying the ash deposition state images corresponding to all the visual devices, calculating the ash deposition thermal resistance value corresponding to the target image, and comparing the ash deposition thermal resistance value with a preset threshold value so as to intelligently decide whether to start the ash blower to remove the deposited ash. By the adoption of the technical scheme, redundant soot blowing operation is reduced, the steam consumption of the soot blower and the blowing damage risk of the heating surface are effectively reduced, meanwhile, safety accidents caused by soot deposition are avoided, and the safety and economical efficiency of boiler operation are improved.

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 discloses an intelligent agent spraying decoking system for energy-saving decoking of a hearth, and relates to the technical field of decoking of industrial boilers, the intelligent agent spraying decoking system comprises a sensing module used for collecting coke scale characteristic data, and the data comprises the temperature, thickness, component distribution and adhesion strength of coke scale; the module is combined with a temperature sensor, a component analyzer and image detection equipment for cooperative work, and multi-dimensional scorch scale characteristic information is obtained in real time. According to the intelligent agent spraying decoking system for hearth energy saving and decoking, through cooperative use of the sensing module, the control module, the agent storage module, the agent spraying module and the feedback module, intelligent and accurate decoking is achieved, the diversity of coke scales can be effectively dealt with, the heat efficiency of a boiler is improved, the energy cost is reduced, and the safety problem caused by the coke scales can be prevented; the problems that a traditional decoking method is low in efficiency, poor in applicability and insufficient in adaptability to coke scale types are solved.

The invention relates to the technical field of automatic control, and discloses an intelligent ash deposition prevention self-cleaning system for a flue of a low-temperature economizer of a coal-fired power plant. According to the system, data such as temperature, humidity and flue gas components in a flue are acquired in real time through the data acquisition module, the dust deposition condition and cleaning requirements of the flue are accurately evaluated, the omission phenomenon caused by misjudgment in the manual cleaning process is avoided, the data processing and analysis module improves the data processing precision, and the data processing and analysis efficiency is improved. The system can also monitor the running state of the flue in real time, so that a cleaning instruction is automatically sent out when necessary, the timeliness and effectiveness of cleaning work are ensured, the cleaning execution module can efficiently remove accumulated dust while reducing the temperature of the flue through a mode of combining high-pressure airflow, a vibration device and a water spraying system, the time needed by cleaning is remarkably shortened, and the cleaning efficiency is improved. And the monitoring feedback module evaluates the cleaning effect, it is ensured that each time of cleaning can reach the preset standard, and the intelligent level and safety of flue cleaning are further improved.

The utility model discloses a boiler air pre-heater with a cleaning function, which comprises an air pre-heater body, the air pre-heater body comprises a tube box, a smoke tube bundle and a scraper device are arranged in a heat exchange cavity of the tube box, and the scraper device is used for scraping dirt on the outer side wall of each smoke tube in the smoke tube bundle; a smoke inlet pipe and a smoke exhaust pipe are arranged at the two ends of the pipe box respectively, the axis of a smoke inlet of the smoke inlet pipe and the axis of a smoke outlet are arranged in an angle mode, an extending pipe extending in the axial direction is arranged on the side, opposite to the smoke outlet, of the smoke inlet pipe and communicated with the smoke inlet pipe, and a scraping and washing device is arranged in the extending pipe. The scraping and washing device is used for scraping dirt on the inner side wall of each smoke tube in the smoke tube bundle; a valve control assembly is arranged at the joint of the extension pipe and the smoke inlet pipe. According to the smoke tube bundle cleaning device, dirt accumulated on the inner side wall and the outer side wall of each smoke tube in the smoke tube bundle is scraped away in a scraping and washing mode under the condition that disassembly is not needed, and therefore cleaning of the smoke tube bundle is achieved, heat exchange efficiency is improved, cost is reduced, and the service life is greatly prolonged.

The utility model relates to the technical field of on-line monitoring devices, and discloses a pulverized coal fired boiler combustion state on-line monitoring device which comprises a boiler shell, an ignition device is arranged on the surface of the boiler shell, and a flue gas exhaust pipe is arranged at a gas outlet. The industrial camera is arranged on the surface of the boiler shell; the fan is arranged on the upper surface of the boiler shell, an air outlet of the fan is connected with the cleaning ring through an air inducing pipe, the cleaning ring is installed on the inner wall of the boiler shell and located on the periphery of the lens, and air outlet pipes are evenly distributed on the inner wall. The flue gas analyzer is arranged at an air outlet of the flue gas exhaust pipe, and a high-temperature infrared temperature measuring unit and a pressure fluctuation sensor are further arranged in the boiler shell. The device has the advantages that airflow is conveyed to the cleaning ring through the draught fan via the air inducing pipe, a directional airflow field surrounding the lens is formed through the air outlet pipe on the inner wall of the cleaning ring, the surface of the lens is purged in real time, imaging blurring caused by dust accumulation is prevented, the cleaning ring and the lens are coaxially installed, it is ensured that the purge range is fully covered, and continuous work of an image collecting system is maintained.

The invention relates to the technical field of thermal power generating unit intelligent operation, in particular to a thermal power generating unit intelligent operation auxiliary decision-making system based on big data analysis, which comprises a water cooling wall working condition synchronous acquisition module, a temperature difference dynamic compensation module, a soot deposition rate analysis module, a soot blowing demand prediction module and an intelligent soot blowing decision-making module. Wherein the temperature difference dynamic compensation module is used for executing humidity compensation calculation on pipe wall temperature difference data and outputting compensated temperature difference data; the ash deposition rate analysis module is used for calculating current water-cooled wall ash deposition rate data; the soot blowing demand prediction module is used for calculating remaining effective time data for reaching the maximum allowable soot deposition thickness; the intelligent soot blowing decision module is used for matching a corresponding soot blowing strategy; according to the method, through multi-source data fusion and dynamic soot blowing strategy matching, accurate prediction and efficient soot blowing decision making of water-cooled wall soot deposition are achieved, and the safety and economical efficiency of the boiler are remarkably improved.

The invention belongs to the technical field of additives for coal-fired boilers, and particularly relates to a coal-saving desulfurization ash-removal decoking agent applied to boilers. The coal-saving, desulfurization, ash-removal and coke-cleaning agent is prepared from the following components: a component A, a component B and a component C, wherein active components CaO, HoFeO3 and CeO2 are loaded on a carrier SrO-MgO; the component B is prepared by loading the active components MgCO3 and KNO3 on the carrier BaFe12O19; the component C is Cu-doped CoFe2O4, and the component C is Cu- The mass ratio of the component A to the component B to the component C is (5-8): (2-3): 1. The coal-saving desulfurization ash-removal coke cleaning agent can effectively save fuel, improve the sulfur fixation efficiency, reduce generation of coke scales on the furnace wall, remove old coke scales, improve the working condition of a circulating fluidized bed boiler and greatly reduce the operation and maintenance cost of the circulating fluidized bed boiler.

The invention provides a method for predicting the slagging condition in a furnace in real time and a prevention and treatment method and device.The method comprises the following specific steps that furnace monitoring data at the current moment are input into a slagging prediction model based on a neural network algorithm, the heat transfer capacity of a heating surface at the future moment is obtained through prediction, and the heat transfer capacity of the heating surface represents the slagging condition of the heating surface; by taking the heat transfer quantity of the heating surface, the theoretical value of the heat transfer quantity of the heating surface and the monitoring data in the furnace at the current moment as reference data, optimizing unit operation parameters by using the operation logic of the power plant, and transmitting the optimized unit operation parameters to a controller; the heat transfer capacity of the heating surface at the future moment is predicted through sensitivity analysis and a neural network algorithm, and real-time prediction and prevention of the slagging condition in the boiler are achieved in combination with boiler closed-loop control.

The embodiment of the invention relates to the field of boiler ash removal, and provides an ash removal method and device for a solid waste incineration waste heat boiler, a terminal and a medium, and the method comprises the steps that smoke side parameters and working medium side parameters of a boiler heat exchanger are obtained; according to the flue gas side parameters, the heat exchange efficiency and the flue gas side pressure difference of the boiler heat exchanger are determined; acquiring historical ash deposition data of the boiler heat exchanger; constructing an ash deposition prediction model according to the historical ash deposition data, the heat exchange efficiency and the flue gas side pressure difference; according to the heat exchange efficiency and the flue gas side pressure difference, a real-time ash deposition index is determined through an ash deposition prediction model; and when the real-time ash deposition index is larger than an ash removal threshold value, an ash removal device is adopted to carry out ash removal operation on the solid waste incineration waste heat boiler, the ash deposition state of the boiler can be judged according to the real-time heat exchange efficiency and the smoke side pressure difference of the boiler heat exchanger, accurate ash removal is carried out on the boiler heat exchanger, the operation and maintenance cost is reduced, and the operation efficiency is improved. The production efficiency is improved.

The utility model belongs to the technical field of industrial energy conservation, and particularly relates to a coke oven flue gas waste heat recycling device which comprises a water tank. A water inlet is formed in the outer side of the water tank; a smoke exhaust pipe is fixedly connected to the interior of the water tank; a steam pipe is arranged on the top of the water tank close to the smoke exhaust pipe; one end of the steam pipe away from the water tank is fixedly connected with a smoke exhaust pipe; an intelligent alternate valve is mounted in the steam pipe; a threaded rotating column is rotationally connected to the interior of the smoke exhaust pipe; when waste heat is recovered through a boiler, a large amount of dust is carried in smoke of a coke oven, the dust is accumulated for a long time, so that a pipeline is possibly blocked, and the boiler cannot be normally used, so that the dust accumulated in the smoke exhaust pipe is cleaned through the back-and-forth movement of the cleaning scraper in the smoke exhaust pipe; the situation that the interior of the smoke exhaust pipe is blocked due to dust accumulation is greatly reduced, and the service life of the smoke exhaust pipe is prolonged.

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 discloses a waste heat boiler power generation optimization method for a gas-steam combined generator set, and the method comprises the steps: deeply cooling the exhaust gas temperature to below 75 DEG C through a multi-stage anti-corrosion heat exchange device, and carrying out the heat exchange through an intelligent control heat medium water circulation loop; the recycled heat is distributed to natural gas preheating, refrigeration, heat supply, air preheating and the like according to the priority in a cascade mode. According to the system, efficient deep recovery and comprehensive utilization of flue gas waste heat are achieved, the energy efficiency and economical efficiency of the unit are remarkably improved, and safe and reliable operation of the system is ensured through intelligent anti-corrosion control.

The invention discloses an intelligent acoustic vibration decoking device, and relates to the technical field of boiler furnace flue decoking. The decoking device comprises an acoustic vibration sounder, a motion control mechanism, a monitoring photographing device, a deep learning algorithm device and the like. After the monitoring photographing device obtains an in-furnace coke deposition image, the monitoring control and image comparison analysis device carries out comparison analysis, the deep learning algorithm device calculates the thickness and speed of the deposited ash, and then the decoking strength and frequency of the sound vibration sounder and the displacement of the motion control mechanism are controlled. In addition, the split type sound wave amplifying device is matched with a motion control mechanism through a hollow rotating ball structure, and 360-degree circumferential rotation can be achieved. And a sealing box mounting mechanism and a high-temperature-resistant material ensure stable operation of the equipment. Through real-time monitoring, intelligent analysis and dynamic adjustment, the decoking efficiency and precision are improved, the coverage range is expanded, the method adapts to complex working conditions, manual intervention is reduced, and refinement, automation and intellectualization of the decoking process are achieved.

The invention relates to an expansion type boiler waste heat recovery system, and relates to the technical field of boiler waste heat recovery, the expansion type boiler waste heat recovery system comprises a multi-stage dust removal module, a flue gas desulfurization module, a heat exchanger module and a waste heat recovery assembly, the multi-stage dust removal module comprises an inner stainless steel pipe, and one end of the inner stainless steel pipe is fixedly connected with a flue gas inlet pipe through a flange. By arranging the inner stainless steel pipe, the outer stainless steel pipe and the aerogel layer between the inner stainless steel pipe and the outer stainless steel pipe and cooperating with the heat preservation layer in the fine filtering box, a multi-layer heat preservation structure is formed, heat loss of flue gas in the dust removal process is effectively reduced, and the flue gas temperature is guaranteed; meanwhile, a ceramic fiber layer in the Venturi pipeline and a heat preservation cotton layer on the inner side of the stainless steel sleeve can further isolate heat, it is ensured that flue gas is kept at a high temperature in the dust removal, desulfurization and heat exchange processes, good conditions are created for follow-up waste heat recovery, the waste heat recovery efficiency is improved, and the situation that the follow-up technological process is affected due to the too low temperature is avoided; and the equipment operation cost and energy consumption are reduced.

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 belongs to the technical field of furnace heat exchange, and discloses a hot water module furnace heat exchanger capable of recovering flue gas heat, which comprises a heat exchange box and further comprises a flue gas recovery heat exchange assembly arranged on the heat exchange box. Flowing water is introduced into the heat exchange box and the second guide pipe through the water inlet assembly, flue gas flows along the flue gas flow channel formed between the first guide pipe and the second guide pipe, and the section of the flue gas flow channel formed between the first guide pipe and the second guide pipe is in a sawtooth shape in the flowing process; due to the fact that the temperature of the smoke generated by natural gas combustion ranges from 150 DEG C to 300 DEG C, heat of the smoke is conducted to water in the heat exchange box and water in the second guide pipe through the first guide pipe and the second guide pipe, the water is heated by recycling the heat of the smoke, effective utilization of the smoke is improved, and the utilization rate of the smoke is increased. And the energy-saving potential of gradient utilization of energy is fully exerted.

The present application relates to a threaded air soot blower, which includes a first base plate and a second base plate. A plurality of connecting frames are commonly connected between the first base plate and the second base plate. A soot blowing threaded rod is arranged between the first base plate and the second base plate. A driving device is arranged on the first base plate. A soot blowing outer tube is arranged at a position below the soot blowing threaded rod. A soot blowing inner tube is connected inside the soot blowing outer tube. A telescopic opening is formed in the second base plate corresponding to the position of the soot blowing outer tube. One end of the soot blowing outer tube extending out of the telescopic opening is closed. A plurality of soot blowing holes are formed in the side wall of the soot blowing outer tube near the closed end. The soot blowing threaded rod is connected with a moving device for driving the soot blowing outer tube to rotate and move. A plurality of rubbing devices for rubbing the outer wall of the soot blowing outer tube are arranged on two connecting frames at the lower positions. The present application has the effects of improving the situation of excessive slag on the surface of the soot blowing pipe, ensuring the long-term stable movement of the soot blowing pipe, and ensuring the soot blowing efficiency of the soot blowing pipe.

The invention belongs to the field of artificial intelligence, particularly relates to a boiler soot blower strategy adaptive optimization system based on reinforcement learning, and aims to solve the problems of low energy efficiency and equipment wear caused by difficulty in collaborative optimization of soot blowing opportunity, position and strength in an existing soot blowing strategy. The system comprises a boiler operation state sensing module, a soot formation state evaluation module, a reinforcement learning decision engine module, a soot blowing execution control module and a feedback learning closed loop module, the soot formation state is quantified through multi-source data fusion, a multi-target optimization soot blowing strategy is generated through layered reinforcement learning, and strategy online evolution is achieved based on a feedback closed loop. According to the system, the heat efficiency is remarkably improved, the energy consumption and the maintenance cost are reduced, and the adaptivity and robustness of soot blowing control are enhanced.

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 invention relates to a soot blowing control method and device for a boiler, electronic equipment and a storage medium, and the method comprises the steps that current state data of at least one heating surface of a target boiler are obtained; calculating a heat transfer coefficient of each heating surface based on the current state data, and matching a corresponding contamination level for each heating surface based on the heat transfer coefficient; and an overall soot blowing strategy, meeting the preset operation efficiency requirement, of the target boiler is determined based on the contamination level of each heated surface, and the target boiler is controlled to execute corresponding soot blowing actions through the overall soot blowing strategy. Therefore, the technical problems that in the related technology, the manual soot blowing control workload is large, the soot cleaning effect is difficult to guarantee, under the condition that the boiler operation state cannot be accurately judged, the soot cleaning effect is difficult to guarantee through automatic soot cleaning, and the boiler operation efficiency is likely to be affected are solved.

The invention discloses a household garbage incinerator flue gas ultra-clean emission treatment device, and belongs to the technical field of flue gas purification. A household garbage incinerator flue gas ultra-clean emission treatment device comprises a gas inlet pipe, a pipeline cleaning assembly is connected to the interior of the gas inlet pipe, a filtering cavity is connected to one end of the gas inlet pipe, a rectangular blocking plate is connected to the interior of the filtering cavity, and through the pipeline cleaning assembly, the rectangular blocking plate is connected to the interior of the filtering cavity. The circular moving block and the annular cleaning block are driven to move through the thrust of flue gas, the arc-shaped tangent plane of the annular cleaning block is attached to the inner wall of the gas inlet pipe, accumulated dust on the pipe wall is continuously scraped away in the flue gas conveying process, and compared with a traditional manual cleaning or passive dust cleaning mode, the assembly achieves dynamic automatic cleaning, and the cleaning efficiency is improved. The influence of accumulated dust on the through-flow sectional area is reduced, the situation that the system resistance rises due to the increase of the accumulated dust is avoided, stable conveying of flue gas is guaranteed, meanwhile, after the circular moving block enters the filtering cavity, residual impurities can automatically slide to the discharging opening, and secondary pollution and accumulation are avoided.

The invention belongs to the technical field of quick disassembly of air pre-heater pipes, and particularly relates to a quick disassembly and assembly method for boiler air pre-heater pipes, the number of the boiler air pre-heater pipes is multiple, the multiple boiler air pre-heater pipes are combined into one or more boiler air pre-heater pipe modules, and the quick disassembly and assembly method for the boiler air pre-heater pipes comprises the following steps that S1, chemical softening is conducted; s2, dismantling an old module; s3, cleaning the mounting position; s4, cleaning old modules; s5, a new boiler air pre-heater pipe module is installed, the defects in the prior art are overcome, aiming at the technical problem that long time is needed for disassembly, assembly and replacement of an existing boiler air pre-heater pipe, the boiler air pre-heater pipe is prefabricated into the module, then during disassembly and assembly, chemical softening is adopted firstly to reduce the mechanical cutting difficulty, and then the prefabricated module is adopted to reduce the field operation time; the time of field operation is shortened to the maximum extent, a large amount of time needed for field operation originally is converted to other positions for operation, and it is guaranteed that the boiler can rapidly recover to work.

The invention relates to the technical field of boiler waste heat recovery, in particular to a boiler waste heat recovery system which comprises a mounting base, a shell, a heat exchange tube and a dust scraping device, the shell is of a hollow cylindrical structure and is fixedly mounted on the mounting base, sealing end covers are arranged at the two ends of the shell respectively, the heat exchange tube is coaxially and rotatably arranged in the shell through the sealing end covers, and the dust scraping device is arranged in the shell. A smoke channel is formed between the outer wall of the heat exchange pipe and the inner wall of the shell and provided with an air inlet and an air outlet, the heat exchange pipe is provided with a water inlet and a water outlet, the dust scraping device is a scraping strip fixedly arranged on the inner wall of the shell, and the scraping strip rotates along with the heat exchange pipe to make contact with the outer wall of the heat exchange pipe and removes accumulated dust on the outer wall of the heat exchange pipe. And the shell is provided with an ash outlet below the air outlet. The boiler waste heat recovery device solves the problem that in the prior art, in the long-time operation process of a boiler waste heat recovery device, smoke dust is prone to being accumulated on the outer wall of a heat exchange pipe, and heat exchange efficiency is reduced, the outer wall of the heat exchange pipe can be kept clean continuously, heat exchange efficiency is improved, and stable operation of equipment is guaranteed.

To prevent dust from adhering to the interior of a boiler to protect the boiler.SOLUTION: A boiler includes: a heat radiation chamber having a heat transfer pipe which receives radiant heat of an exhaust gas circulating from a waste incinerator to generate steam, and a convective heat transfer chamber which overheats steam through heat exchange between the exhaust gas and the heat transfer pipe. The boiler has a plasma actuator, which generates airflow by an AC voltage being applied thereto, on a peripheral surface of the heat transfer pipe. Dust contained in the exhaust gas flows along the airflow generated by the plasma actuator. Thus, the structure can inhibit the dust contained in the exhaust gas from adhering to the heat transfer pipe and inhibit corrosion of the heat transfer pipe from being caused by the dust.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of boilers, in particular to an online ash removal device for a boiler. According to the technical scheme, the boiler on-line ash removal device comprises a boiler body, the right side of the boiler body is connected with an air pre-heater through a pipeline, a tail heating surface is installed on the right side surface of the air pre-heater, symmetrical slag discharging openings are formed in the right side of the bottom surface of the tail heating surface, and fixing discs are arranged in the middles of the left side and the right side of the tail heating surface correspondingly; a screw rod is arranged between the two fixed discs, a movable seat is arranged on the outer surface of the screw rod, a cleaning disc is arranged on the right side surface of the movable seat, and a slag scraping rod is arranged on the outer surface of the cleaning disc. By arranging the screw rod, the screw rod can drive the moving seat on the surface of the screw rod to move left and right when rotating, so that the cleaning disc is driven to move left and right, and the cleaning disc rotates to drive the slag scraping rods on the surface of the cleaning disc to rotate, so that accumulated dust on the inner wall of the tail heating surface is scraped.

The invention relates to the technical field of soot blowing devices, and discloses a boiler superheater soot blowing device which comprises a pipeline system provided with a main pipe and branch pipes, the main pipe is distributed along the X axis and arranged on one side of the bottom of an in-boiler superheater, and the branch pipes are distributed along the Y axis, welded to one side of the main pipe and communicated with the main pipe; the ends, away from the main pipe, of the branch pipes extend to the bottom of the boiler superheater, a plurality of air holes with upward openings are formed in the surfaces of the branch pipes in the Y-axis direction at equal intervals, every two adjacent air holes form a group, and the two air holes in each group incline relatively to form an included angle. When the smoke passes through the smoke channel, the smoke collides and diffuses at the vertex of the included angle to form an air bed, so that the passing smoke is always in a boiling state and cannot be deposited; through the unique air hole collision design and the knocking system, by means of a turbulence area formed by collision airflow and vibration sonic boom, smoke dust is effectively removed and prevented from being deposited, and the risk of dust deposition is reduced.

The application discloses a device and method for preventing dry burning of a reheater of a waste heat boiler, and the device comprises a high-pressure blowing unit, a medium-pressure blowing unit, a low-pressure blowing unit and a reheater unit. The high-pressure blowing unit and the medium-pressure blowing unit can ensure that the reheater unit has steam flow in the whole blowing process, and the low-pressure blowing unit can stabilize the blowing pressure. The device and method can prevent the reheater from being in a dry burning state during blowing.

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.