2115results about "Steam boilers components" patented technology

In an intelligent pollution and carbon reduction method based on combustion control and load distribution, a data processing layer, a multi-unit load distribution and operation optimization layer and a single-unit boiler multi-objective combustion optimization layer are used. The data processing layer, the multi-unit load distribution and operation optimization layer and the single-unit boiler multi-objective combustion optimization layer are embedded in a power plant information system in the form of modules. A load distribution and operation optimization method for a multi-source fuel blending combustion unit with economy as an objective is provided to overcome the operation optimization difficulty of the key production process of a multi-source fuel blending combustion cogeneration unit, such as sludge drying-steam distribution.

The invention provides a thermal power plant boiler combustion visual monitoring and early warning method and system, a storage medium and electronic equipment. According to the method, obtained multi-measuring-point temperature data are input into a pre-constructed temperature field reconstruction model, the model comprehensively considers the geometric structure and combustion thermodynamic characteristic factors of a hearth, model parameters are dynamically adjusted through a particle swarm optimization algorithm, the temperature field reconstruction precision is continuously improved, and a three-dimensional real-time temperature distribution diagram of the hearth is generated; fusing and presenting the diagnosed combustion abnormal information and the visual image of the hearth temperature field, generating a visual in-furnace combustion state monitoring interface, and meanwhile, pushing the abnormal information to a mobile terminal to realize remote monitoring and early warning; the combustion state data in the long-period operation process of the boiler are mined and analyzed, typical combustion modes are extracted, a combustion mode library is continuously enriched and optimized, an online learning algorithm is used for adaptively updating a combustion abnormity diagnosis model, and the intelligent level of combustion state sensing and abnormity early warning is continuously improved.

The embodiment of the invention discloses a boiler anti-wear and anti-explosion online early warning system based on a sensor and big data, and relates to the technical field of boiler safety monitoring, and the system comprises a sensor module which collects operation parameters in a boiler in real time; the data acquisition module is used for summarizing various data acquired by the sensor module; the data processing module is used for carrying out processing, analysis and trend prediction on the collected real-time data through a big data analysis technology; the early warning module is used for evaluating the anti-abrasion and anti-explosion risk of the boiler according to the analysis result output by the data processing module and generating an alarm when a risk threshold value is exceeded; and the display and interaction module is used for displaying the boiler operation state, the risk assessment result and the early warning information to an operator. According to the invention, intelligent monitoring and risk early warning of boiler equipment can be realized, and through accurate data analysis and prediction, the operation safety of the boiler can be improved, the occurrence of safety accidents can be reduced, and the maintenance strategy of the boiler can be optimized.

The invention provides a cooking utensil superheated steam system and a temperature control method thereof, and relates to the technical field of steam cooking. The superheated steam system of the cooking utensil comprises the cooking utensil, a steam module, an ultrasonic heating module, a temperature monitoring module, a cooking data acquisition module, a data analysis module, a model prediction module, a display module, a dynamic adjustment heating strategy, a waste heat recovery module and a preheating box. Ultrasonic vibration is used for assisting heating, water molecules rapidly vibrate in a microwave field to generate heat, the waste heat recovery module captures heat generated in the cooking process through a heat exchanger and is used for preheating the next batch of food, the energy utilization efficiency is remarkably improved, energy waste and carbon emission are reduced, the heating strategy is dynamically adjusted, and the energy utilization rate is increased. According to the real-time sensor data and the prediction model, the heating power, the steam flow and the heating time parameters are automatically optimized, unnecessary energy consumption is avoided, and accurate temperature control and energy consumption optimization are achieved.

A molten salt heating direct-flow type wet saturated steam generation system, comprising an evaporation device, a molten salt conveying device, a preheating device, a softened water conveying device, and a dryness adjustment device. The evaporation device is provided with a first heat exchange pipeline and a second heat exchange pipeline; the molten salt conveying device comprises a molten salt conveying apparatus and a molten salt recovery apparatus; the preheating device is provided with a first preheating pipeline, and an outlet of the second heat exchange pipeline is connected to a steam output pipeline; and the dryness adjustment device comprises an adjustment member and a dryness measurement apparatus. According to the steam generation system provided by the present invention, the temperature of softened water and the temperature of molten salt can be adjusted to appropriate ranges, avoiding the crystallization of the molten salt; moreover, the dryness of wet saturated steam can be controlled by means of coarse adjustment and fine adjustment, and the direct-flow type evaporation device is suitable for softened water having poor quality so as to meet the steam injection requirements of oil fields.

The invention discloses a steam generator water level control method, system and device based on digital twinning, and the method comprises the steps: obtaining the detection information obtained through the detection of a sensor in real time, and outputting the actual measurement water level to a water level regulator, so as to obtain the feed water flow regulation amount; the detection information is analyzed according to the real-time online heat balance model to obtain an analysis result, the analysis result and the feed water flow adjusting amount are output to a first flow regulator, and the first flow regulator correspondingly outputs a control instruction to a feed water adjusting valve for feed water flow adjustment. According to the control method, by means of the digital twinning technology and the numerical simulation technology, the water level control process is improved to achieve accurate adjustment, and the operation reliability, the equipment safety, the operation convenience and the operation efficiency of the nuclear power station steam generator are improved.

The invention discloses an automatic monitoring method and device for pipe explosion of a heating surface of a boiler, and relates to the technical field of monitoring of pipe explosion of the heating surface of the boiler. The monitoring method comprises a multi-source signal acquisition step, a data preprocessing and feature extraction step, a double-model parallel prediction step, a dynamic weighted fusion step, a consistency check and feedback calibration step and a risk response output step. According to the CNN-LSTM model sound wave frequency domain feature-temperature field gradient change spatio-temporal multi-source data joint identification, the limitation that a traditional model only pays attention to a single dimension is solved, feature distribution Attention and a physical guidance fusion mechanism solve the false alarm problem of a pure data driving model through a user-defined physical rule constraint function, and the accuracy and the reliability of the model are improved. A dynamic confidence SNR weighting mechanism enables the tube burst identification accuracy of the model under a strong noise working condition to be improved, and physical-data dual-drive consistency check realizes long-term maintenance of high positioning precision.

The invention discloses a thermal power plant boiler fault monitoring and early warning method and system, and the method comprises the steps: obtaining and analyzing the operation monitoring data of a thermal power plant boiler, and determining an abnormal operation parameter; performing data prediction on each abnormal operation parameter according to a preset prediction model to obtain corresponding abnormal prediction data, and performing analysis to determine abnormal features; evaluating the abnormal state of the thermal power plant boiler based on each abnormal feature to obtain an abnormal state evaluation value, and judging whether the thermal power plant boiler has a fault according to the abnormal state evaluation value; after the thermal power plant boiler is judged to have the fault, determining the fault type based on the abnormal operation parameters; and determining a fault level based on the fault type, and determining an early warning coping strategy according to the fault level. According to the invention, prediction is carried out by analyzing the operation monitoring data, the future change condition of the boiler is determined, and the fault is determined by evaluation based on the change condition, so that early warning is carried out, the fault risk can be effectively reduced, the safety, reliability and operation efficiency of the boiler are improved, and the production benefit is increased.

The invention relates to the field of boiler fixing devices, in particular to a boiler fixing device which comprises two rotating frames, two sets of clamping pieces, an adjusting piece, a plurality of rotating wheels and a limiting rod. The two rotating frames are symmetrically arranged on the fixed seat, and the first openings of the two rotating frames are opposite to each other; the two sets of clamping pieces are installed in the two rotating frames respectively, a clamping space is formed between each set of clamping pieces, a second opening is formed in the side, close to the first opening, of the clamping space, the width of the second opening is smaller than the inner diameter of the clamping space, and the width of the second opening is adjustable; the adjusting piece is inserted into the end parts of the rotating frames, is in transmission connection with the clamping piece and is used for adjusting the clamping piece to move along the opposite directions of the two rotating frames; the multiple rotating wheels are installed on the surface of the clamping piece and attached to the pipeline in the clamping space. The limiting rod is inserted into the fixing base, and when the clamping piece is in a stopped state, the surface of the limiting rod is clamped to the upper end face and the lower end face of the clamping piece, and the clamping piece is fixed.

The invention discloses a power plant water vapor centralized sampling device and method. The power plant water vapor centralized sampling device comprises a high-temperature and high-pressure sampling valve, a filter, a cooler, a cooler water inlet regulating valve, a cooler water return valve, a pressure reducing valve, a safety valve, an electromagnetic valve and a temperature controller. By means of the arrangement, in actual operation, the problems that a filter of a water vapor centralized sampling device is frequently blocked and cannot be thoroughly washed, and steam is easily discharged during sampling pollution discharge can be solved through the water vapor centralized sampling device. The opening degree of the cooling water inlet regulating valve of the cooler can be automatically regulated according to the temperature of the cooled sample water, so that the flow of the cooling water is reduced, the cooling water is saved, and the water vapor centralized sampling device is more economical and safer to use. Not only is the workload of workers reduced, but also the workers do not need to worry about steam discharge and scald accidents during pollution discharge. Compared with a traditional steam-water centralized sampling system, the safety and the convenience are greatly improved.

The invention discloses a small micro-superheated steam through-flow type gas condensation boiler, belongs to the technical field of boilers, and solves the problems that the current small gas boiler is developed towards the high-efficiency, low-emission and compact direction, and particularly pays attention to waste heat recovery and steam quality control. Comprising an annular water chamber allowing water to enter, a combustion chamber arranged above the annular water chamber and an ultra-low nitrogen surface fiber combustor located above the combustion chamber and communicated with the combustion chamber, and an annular steam chamber is arranged above the combustion chamber. The ultra-low nitrogen surface fiber burner works to burn gas and raise the temperature, and the composite fin straight water pipe converts water in the water pipe into wet steam through efficient heat exchange of the spiral fins and enters the annular steam chamber. External water is injected into the annular water chamber through the finned tube group of the flue gas condenser and the connecting tube, and then enters the steam chamber through the straight tube. Wet steam in the steam chamber enters the superheater through an inlet pipe to form micro superheated steam. Combustion smoke is condensed and discharged after being filtered by a filter screen and subjected to heat exchange, and dryness of the combustion chamber is guaranteed.

The invention discloses a boiler state intelligent monitoring method and device and electronic equipment, and the method comprises the steps: collecting a to-be-processed data set in the operation process of a target boiler in real time; based on a pre-constructed target prediction model, performing prediction processing on the real-time input data at each data acquisition moment to obtain prediction output data corresponding to each data acquisition moment; determining a target residual error corresponding to the to-be-processed data group according to the real-time output data and the predicted output data corresponding to each data acquisition moment; and according to the target residual error and the target comparison threshold interval corresponding to the target residual error, the operation state of the target boiler is determined. According to the invention, the operation state of the boiler is automatically subjected to anomaly detection, so that the detection efficiency and the detection accuracy are improved, and the abnormal operation state of the boiler is found in time.

The invention discloses a nuclear power plant secondary side cleanliness evaluation and radiation shielding method. The method comprises the following steps that S1, whole secondary circuit system equipment of a steam generator is washed; s2, full-coverage cleanliness inspection is carried out in the range from a filter screen of the electric main water feeding pump system to the secondary side of the steam generator, and meanwhile, if foreign matter is found, a cleaning tool is used for picking up the foreign matter; s3, evaluating the cleanliness condition, and if the cleanliness is qualified, ending; if the cleanliness is not qualified, returning to the step S1; s4, if the foreign matter falls off after the steam generator runs, stopping the equipment, and filling the secondary side of the steam generator with water to a preset position for reducing the radiation dose; and S5, picking up foreign matters by using a cleaning tool. Full-coverage cleanliness inspection is carried out in the range from the filter screen of the electric main feed pump system to the secondary side of the steam generator, effective verification of the secondary loop foreign matter flushing effect and radiation shielding when necessary are achieved, and foreign matter remaining on the secondary side of the steam generator is avoided.

A system includes an exhaust diffuser system for a heat recovery steam generator (HRSG). The system includes an inlet portion, a diffuser portion axially extending from the inlet portion, and an outlet portion fluidly coupled to an axial distal end of the diffuser portion, wherein an outlet extent of the outlet portion is greater than an inlet extent of the inlet portion. The diffuser portion includes a plurality of wall portions, and the plurality of wall portions is incrementally angled relative to an axial extent extending from the inlet portion to the outlet portion. The system may further include a gas turbine engine coupled to the inlet portion and the HRSG.

The invention discloses a steam boiler with a steam waste heat recovery function, which comprises a steam boiler body, a combustion chamber, a box body, a combustor, a steam pipe, a smoke exhaust pipe, a drainage mechanism, a connecting pipe, a water inlet pipe and a heat exchanger, the combustion chamber is arranged in the steam boiler body, and the combustor is arranged on one side of the combustion chamber; and a steam pipe is arranged at the top of the steam boiler body. According to the steam boiler with the steam waste heat recovery function, in the aspect of waste heat recovery, the heat exchanger of a composite structure of the heat conduction pipe and the spiral pipe is adopted, sensible heat and latent heat of high-temperature smoke in the smoke exhaust pipe are efficiently captured, and heat is rapidly transferred to a water inlet system through low-boiling-point heat conduction liquid; the waste heat of the flue gas which is directly discharged originally is fully recycled, and the energy loss is greatly reduced.

The invention discloses a boiler anti-wear and anti-explosion detection early warning method and system, and relates to the technical field of boiler detection, and the method comprises the steps: arranging a sensor to collect boiler operation data; calculating a temperature field in the boiler through a heat flow coupling equation; calculating a flow velocity field in the boiler by using a fluid mechanics equation; constructing a damage degree equation based on the temperature field and the flow velocity field in combination with the stress field distribution of the boiler component in the working environment, and evaluating the damage condition of the boiler component; based on the calculation result of the damage degree equation, the damage risk level of the boiler component is judged, risk early warning operation is executed, and operation parameters of the boiler are adjusted. According to the anti-abrasion and anti-explosion detection early warning method for the boiler, the multi-physical field effect in the boiler is comprehensively considered, and the damage state and potential risks of boiler parts can be evaluated more accurately. A finite element method is adopted to finely solve a temperature field and a flow velocity field, stress field distribution is combined, the damage degree of the boiler is dynamically evaluated, and the health state of boiler parts is reflected in real time.

The utility model provides a steam system which comprises a steam generator and an inner container, and the steam generator is used for generating steam; the steam pipe fitting is arranged on the inner container in a penetrating mode, and one end of the steam pipe fitting is connected with the steam generator; the flow blocking piece is arranged at the other end of the steam pipe fitting, at least part of the flow blocking piece and a steam outlet of the steam pipe fitting are opposite and arranged in a spaced mode, a flow blocking channel is defined by the flow blocking piece and at least part of the steam pipe fitting, and the flow blocking channel is communicated with a cavity of the inner container. And steam in the steam pipe fitting passes through the flow blocking channel and then enters the cavity of the inner container. By means of the technical scheme, the technical problem that in the prior art, noise of a steam system is large can be solved.

The invention relates to the technical field of boiler headers, in particular to an inclined header applied to a reciprocating grate steam boiler, which comprises a boiler main body, a grate is arranged in the boiler main body, a lower header is obliquely arranged in the boiler main body, the lower header clings to the grate, a plurality of water cooling walls are arranged on the outer side wall of the lower header in a communicating manner, and the water cooling walls are communicated with the boiler main body. A drainage pipe is installed on the side wall of the lower collecting box, a collecting box head and a filtering mechanism are installed at the front end of the lower collecting box, the filtering mechanism is arranged in the collecting box head and used for filtering impurities in water, and through arrangement of mechanisms such as a filtering plate, the filtering plate can filter water input into the lower collecting box during use, and the filtering plate can filter the impurities in the water; and when the filter plate filters the impurities, the bristles can rotate to clean the surface of the filter plate, and the situation that the filter plate is blocked and the water passing effect of the lower collecting box is affected due to the fact that many impurities are accumulated on the surface of the filter plate is avoided.

The utility model discloses a high-parameter thermal power generating unit depressurization blowpipe temporary system, which belongs to the technical field of unit depressurization blowpipes and comprises a primary steam-water system, a secondary steam system, a target plate device and a silencer which are sequentially connected. The primary steam-water system comprises a separator, a superheater and a main steam pipeline which are connected in sequence, the secondary steam system comprises a hot resteam pipeline, a reheater and a cold resteam pipeline which are connected in sequence, the cold resteam pipeline is provided with a main adjacent blowing door, the main steam pipeline is communicated with the cold resteam pipeline through a high-pressure bypass pipeline, and the reheater is communicated with the high-pressure bypass pipeline. And the high-pressure bypass pipeline is provided with a high-pressure bypass adjacent blowing door. The secondary steam system and the high-pressure bypass system both participate in pipe blowing heat storage, the effective time of pipe blowing each time can be prolonged, the pipe blowing frequency is reduced, high efficiency and energy conservation are achieved, and stress damage to a boiler is relieved.

The invention discloses a heating network heater drainage multi-path switching and water quality standard reaching control technology, and relates to the field of path switching and water quality control, and the technology comprises the steps: configuring a foundation of a heating network heater drainage system, including a conventional drainage path and an accident drainage path, the conventional drainage path is composed of a drainage pump, a drainage pipeline, a drainage control valve and a pipeline connected with a condensate water mother pipe, and the accident drainage path is composed of a drainage pipeline, an accident drainage control valve and a discharge connector connected with a waste heat boiler fixed discharge pipeline. A tubular heat supply network heater is arranged in a heat supply network circulating water system, and a multi-path drainage drainage system comprising a conventional drainage path and an accident drainage path is established on the outlet side of the heat supply network heater, so that graded recovery and abnormal isolation of drainage are realized; and continuously monitoring the hydrophobicity by combining an on-line conductivity analyzer, an on-line pH analyzer and an on-line iron ion analyzer.

The utility model discloses an energy storage type steam system based on a steam heat accumulator, which comprises a softened water supply unit, a gas steam supply unit, an electric steam boiler, the steam heat accumulator and a second thermal deaerator, the steam distribution cylinder is connected with the second thermal deaerator through a second steam pipeline, water supply of the first thermal deaerator is divided into two paths, the first path is connected with the gas steam boiler through a second water supply pipeline, and the second path is connected with the electric steam boiler through a third water supply pipeline. The electric steam boiler is used for supplying steam in an auxiliary mode, steam can be stored in the off-peak electricity period, the stored steam is used for supplying steam, the steam heat accumulator has the peak load shifting function, the proportion of absorbing green electricity is increased, gas consumption is reduced, energy is saved, emission is reduced, and the influence of steam load fluctuation on the gas steam boiler is eliminated. And the service life of the gas-steam boiler is prolonged.

The invention discloses a power station boiler heating surface fin overheating cracking prevention system which is used for a power station boiler and comprises a plurality of heating surface pipes extending in the first direction and arranged at intervals in the second direction. The fins are connected between every two adjacent heating surface pipes; the fin structures are arranged on the wall faces, facing the outer side of the hearth, of the fins, and the fin structures are located in the middle areas, in the second direction, of the fins. According to the overheating cracking prevention and treatment system for the fins on the heating surface of the power station boiler, the fin structures are additionally arranged on the wall surfaces, facing the outer side of the hearth, of the fins, and the fin structures are located in the middle areas, in the second direction, of the fins, so that on the premise that the widths of the fins are not changed, the fins can be prevented from being cracked; and effective heat dissipation is carried out on the middle area of the fins in the second direction, and the problem that in the prior art, the fins crack due to overheating of the fins, and then the heating surface pipe cracks and leaks is solved.

The invention relates to a water pumping compressed gas phase change heat and energy storage system, and belongs to the technical field of energy storage power generation. The water pumping and gas compressing phase change heat and energy storage system comprises a water-gas co-containing tank, a water pumping generator set, a water storage tank, a phase change energy storage power generation subsystem and a current stabilizer, wherein the water pumping generator set is communicated with the water-gas co-containing tank; the water storage tank is communicated with the pumping generator set; the phase change energy storage power generation subsystem is communicated with the water storage tank and the water-gas co-containing tank, and water in the water storage tank enters the phase change energy storage power generation subsystem; the current stabilizer is installed on the phase change energy storage power generation subsystem. Therefore, according to the water pumping and gas compressing phase change heat storage and energy storage system, energy storage and power generation are achieved in one or more modes of water pumping energy storage and power generation, gas compressing energy storage and power generation and phase change energy storage and power generation, and a current stabilizer is arranged in the phase change energy storage and power generation subsystem to stabilize steam flow, so that the phase change energy storage and power generation subsystem can better store energy and generate power; the power generation effect is more stable, and the power generation efficiency is improved.

The invention provides an integrated vehicle-mounted steam-injection boiler with high maneuvering characteristics and a using method of the integrated vehicle-mounted steam-injection boiler. The integrated vehicle-mounted steam-injection boiler comprises a steam-injection boiler pressed assembly, an auxiliary system and a carrying tool, and the steam-injection boiler pressed assembly and the auxiliary system are arranged on the carrying tool; and the carrying tool is used for driving the steam-injection boiler compression assembly and the auxiliary system to move. The components are integrally arranged, so that the vehicle-mounted steam injection boiler can form a complete independent working unit from water supply to steam production, the dismounting workload in the steam injection transition and movement process is reduced, a carrying tool with a good suspension system is adopted, and the vehicle-mounted steam injection boiler is convenient to use. And the vehicle-mounted steam-injection boiler has good field driving capability and maneuverability.

The utility model relates to a steam generator, in particular to an electric heating steam generator convenient to control water quantity, which comprises a heating assembly, an induction assembly is slidably connected in the heating assembly, the induction assembly comprises a positioning frame, the positioning frame is slidably connected in the heating assembly, and a rack is fixed in the positioning frame. The heating assembly comprises a shell, the positioning frame is connected into the shell in a sliding mode, a motor is fixed to the top of the shell, a gear is fixed to the output shaft end of the motor, the gear is meshed with a rack, and the rack is meshed with the gear. A water gauge is fixed to one side of the shell, and first scales are arranged on one side of the water gauge. The water level on the floating plate can be calculated through the combination of the scale I and the scale II, and then the steam generator can quantitatively evaporate water by utilizing the buoyancy of the floating plate and the pressure sensor.

The invention provides a subcritical boiler platen reheater clamping pipe leakage prevention method, device and equipment. The subcritical boiler platen reheater clamping pipe leakage prevention method comprises the steps that dissimilar steel welding connection of a clamping pipe and a pulling plate is relieved; assembling a pipe ring on the outer wall of the clamping pipe to form non-welding type mechanical isolation, and welding and fixing a pulling plate on the outer wall of the pipe ring to complete reconstruction of a stress conduction path; after reconstruction is completed, a two-factor monitoring mechanism for spheroidizing degradation of the clamping pipe and temperature fluctuation of the screen reheater is established; monitoring data are collected based on a two-factor monitoring mechanism, and combustion parameter pre-adjustment and pipeline preventive replacement are dynamically triggered; according to the method, the leakage correlation event is periodically analyzed, the coal blending combustion and maintenance strategy is reversely optimized, the problem that leakage is likely to be caused in a traditional welding mode is solved by removing welding and completing stress conduction path reconstruction, faults can be warned in advance through two-factor monitoring and periodic analysis, and the possibility of leakage is reduced.

The invention discloses a demineralized water replenishing and ammonification control method and system for a waste incineration power plant. The method comprises the steps that S1, the target conductivity in a demineralized water pipeline is preset; s2, supplementing water to a boiler system through a desalting water pump; s3, ammonia water is added into the demineralized water pipeline through an ammonia adding pump; s4, the real-time conductivity and the demineralized water flow value in the demineralized water pipeline are collected through the control device for PID calculation, the control device controls the output frequency of the frequency converter according to the PID calculation result so as to adjust the output of the ammonia adding pump, the PID calculation formula is # imgabs0 #, Q is the demineralized water flow value, Ti is an integral time constant, Td is a differential time constant, and the control device controls the output frequency of the frequency converter according to the PID calculation result so as to adjust the output of the ammonia adding pump. E (t) is the difference between the expected value and the sampling value of the conductivity, and u (t) is the control quantity of the frequency converter. The system has the advantages of being simple in structure, low in cost, capable of enabling a control system to be more stable, higher in anti-interference capacity and the like.

The invention discloses a system for assisting energy storage and peak regulation of a high-temperature hot water tank through fused salt and a control method, and belongs to the technical field of energy storage and peak regulation. The system comprises a unit power generation circulating system and a heat storage system. The heat storage system comprises a high-temperature hot water energy storage part and a fused salt energy storage part, and a high-temperature fused salt storage tank and a low-temperature fused salt storage tank are arranged in the fused salt energy storage part, so that part of heat of redundant steam of a boiler is stored in high-temperature fused salt when the unit operates at low load; the high-pressure and high-temperature steam after heat exchange with the high-temperature fused salt is bubbled in the water storage tank, water in the water storage tank is heated into high-temperature hot water, and therefore steam heat generated by the boiler is completely stored. When the unit is high in load and needs to release energy, high-temperature hot water in the high-temperature hot water tank is converted into saturated steam through the pressure reducer, then exchanges heat with the high-temperature fused salt and is heated into superheated steam, and the superheated steam enters the medium-pressure cylinder to expand and do work. The system can improve the peak regulation capacity of the unit and quickly realize the change of the unit response load.

The invention discloses an adjusting method and device for reducing high-temperature corrosion of a water cooling wall of an opposed firing boiler, and the method comprises the steps: testing the sulfur content of coal as fired, and controlling the sulfur content of the coal as fired; the opening degree or the rotating speed and the ventilation quantity of a baffle of a separator of the coal mill are adjusted, and the primary air speed, the pulverized coal fineness and the uniformity index value of each layer of combustor are adjusted to be within the required range; the boiler operation oxygen amount, the opening degree of a secondary air box and the opening degree of an over-fire air door are adjusted, and the excess air coefficient of a main combustor area is controlled; the opening degree of internal and external secondary air and the rotational flow strength of a main combustor of the boiler are adjusted, a secondary air door in the combustor is fully opened, the rotational flow angle of the internal secondary air is adjusted to be minimum, the rotational flow angle of the external secondary air of the combustor close to two side walls is adjusted to be smaller, and meanwhile the external secondary air volume is increased. After adjustment, pulverized coal airflow deflection wall-attaching combustion is relieved, air supply in the initial stage of combustion is increased, H2S generation is reduced, and meanwhile the air supply amount of a flowing dead zone of the opposed firing boiler and the isolation capacity of a wall-attaching air film on pulverized coal airflow deflection wall-attaching are also increased.

The invention discloses a heat pipe type premixed water cooling inter-pipe combustion steam generator boiler and an operation method, the boiler is vertically arranged and comprises a steam generator, the steam generator is connected with an upper header through a downcomer I and an ascending gas guide pipe, and the steam generator is connected with a lower header through a downcomer II; the upper header and the lower header are communicated through the left and right membrane water-cooled walls, the front wall micropore combustion membrane wall, the heat exchange light tube bundle and the finned tube bundle; an area enclosed by the left and right membrane water-cooled walls, the front wall micropore combustion membrane wall, the heat exchange light tube bundle and the finned tube bundle is a hearth; a condensed steam heat exchange pipe is arranged in the steam generator and is connected with a water inlet and a water outlet of the steam generator; the energy-saving condenser and the air pre-heater are arranged behind the hearth, the overall structure is compact, and water vapor can be fully condensed; boiler feed water is indirectly heated through the steam generator, water circulation in the steam generator is promoted, the scaling risk in a boiler body pipe is eliminated, and the operation stability of the steam generator is improved.