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3392results about "Steam boilers" patented technology

Intelligent pollution and carbon reduction method based on combustion control and load distribution

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.
Owner:ZHEJIANG UNIV +1

Thermal power plant boiler combustion visual monitoring and early warning method and system, storage medium and electronic equipment

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.
Owner:GUODIAN DAWUKOU THERMAL POWER CO LTD

Boiler anti-abrasion and anti-explosion online early warning system based on sensor and big data

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.
Owner:XIAN THERMAL POWER RES INST CO LTD

Cooking utensil superheated steam system and temperature control method thereof

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.
Owner:吴迪

Molten salt heating direct-flow type wet saturated steam generation system

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.
Owner:LIAOHE GASOLINEEUM EXPLORATION BUREAU CO LTD +2

Electric steam generator with waste heat recovery device

The invention discloses an electric steam generator with a waste heat recovery device, and relates to the technical field of steam generators, the electric steam generator comprises a main body, a heating cavity is fixedly connected to the inner side of the main body, a plurality of electric heating pipes are fixedly connected to the inner side of the main body and located on the periphery of the heating cavity, and a recovery unit is arranged on the outer side of the main body. The upper side of the main body is fixedly connected with a first water inlet pipe, the right side of the main body is fixedly connected with a steam discharge pipe and a gas pipeline, the recovery unit comprises a fixing frame, and the fixing frame is fixedly connected to the outer side of the main body. According to the electric steam generator with the waste heat recovery device, the main body, the heating cavity, the electric heating pipe, the smoke conveying pipe, the heat exchange pipe and the recovery barrel are arranged, generated high-temperature smoke waste heat is conveniently recovered, stirring plates on the upper side and the lower side are conveniently controlled to rotate through a control rod, a second gear, a first gear, a motor and a fixing ring, water is stirred, and the heat exchange effect is improved.
Owner:HEBEI XINMAIFA ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH CO LTD

Steam generator water level control method, system and device based on digital twinning

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.
Owner:CHINA NUCLEAR POWER ENGINEERING COMPANY LTD +1

Cooking equipment

The utility model discloses cooking equipment, which comprises a cooking device, a heating device and a control device, the gas steaming and baking module is connected with the cooking device and used for supplying steam and / or smoke to the cooking cavity, the gas steaming and baking module comprises a combustor, the combustor comprises a body and a gas supply structure, the body defines a combustion cavity, the gas supply structure defines a gas mixing cavity communicated with the combustion cavity, and the gas supply structure is provided with a gas inlet, an air inlet and an outlet; the gas inlet communicates with the gas mixing cavity, the air inlet communicates with the gas mixing cavity, the gas mixing cavity communicates with the combustion cavity through the outlet, and the combustion cavity is suitable for introducing gas in the gas mixing cavity. According to the cooking equipment provided by the embodiment of the utility model, the gas supply structure with the gas mixing cavity is arranged on the combustor, and the gas mixing cavity is communicated with the combustion cavity of the combustor, so that the premixing of the gas and the air can be realized, the sufficient mixing of the gas and the air can be ensured, and the sufficient combustion of the gas can be ensured.
Owner:HANDAN MIDEA INTELLIGENT KITCHEN ELECTRIC MFG CO LTD

Automatic monitoring method and device for pipe explosion of boiler heating surface

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.
Owner:广州特种设备检测研究院(广州市特种设备事故调查技术中心广州市电梯安全运行监控中心)

Thermal power plant boiler fault monitoring and early warning method and system

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.
Owner:HUANENG TONGCHUAN ZHAOJIN COAL POWER CO LTD

Boiler energy saving method based on IOT data analysis

The invention relates to the technical field of machine learning, in particular to a boiler energy saving method based on IOT data analysis, which comprises the following steps: acquiring a boiler operation parameter set in real time through an Internet of Things sensor, and substituting the boiler operation parameter set into a parameter optimization model to obtain a plurality of different boiler operation parameter combinations; the multiple different boiler operation parameter combinations are substituted into the boiler operation state prediction model, and then multiple sets of prediction results in one-to-one correspondence with the boiler operation parameter combinations are obtained; the fitness is evaluated based on the prediction result corresponding to each boiler operation parameter combination, the boiler operation parameter combination with the highest fitness is marked as the optimal boiler operation parameter, and a corresponding boiler operation parameter optimization suggestion is generated based on the optimal boiler operation parameter. According to the method, the boiler operation data collected in real time are analyzed, the optimization suggestions are generated, operators are helped to reasonably adjust the operation parameters of the boiler under various working conditions, and the effects of energy conservation and emission reduction are achieved.
Owner:CHENGDU XIEZHI YOUNENG INTELLIGENT TECHNOLOGY CO LTD

Automatic closing device for pipe explosion of boiler water level gauge

The utility model discloses a boiler water level gauge tube explosion automatic closing device which is arranged between a boiler drum and a glass tube water level gauge and comprises a boiler connecting flange, an automatic closing tube and a water level gauge connecting flange. The automatic closing pipe comprises a straight pipe section and a bent pipe section; the straight pipe section sequentially comprises a first concentric reducer, a sealing equal-diameter tee joint, a second concentric reducer and a reducer tee joint; the bent pipe section sequentially comprises a first long-radius elbow, a check valve, a second long-radius elbow and a sealing ball; the first long-radius elbow is connected with the sealing equal-diameter tee joint, and the second long-radius elbow is connected with the reducing tee joint. When a pipe explosion accident occurs, the device can be closed in time, a large amount of water and steam are prevented from being sprayed out, the influence of the accident is effectively reduced, the sweep range is reduced, and the accident loss is reduced. The utility model has the advantages that the water level gauge communicating pipe can be automatically closed after pipe explosion, the accident influence is reduced, and the loss is reduced.
Owner:GUIZHOU BAILING GRP PARMACEUTIAL CO LTD

CFB (circulating fluid bed) boiler for heating fused salt by extracting smoke from tail flue

The invention provides a CFB (circulating fluid bed) boiler for heating molten salt by sucking smoke in a tail flue, and belongs to the technical field of CFB boilers coupled with molten salt heat storage. The problem that the scale and efficiency improvement of industrial production are seriously limited due to the fact that a traditional CFB boiler unit is generally lack of high-capacity and high-parameter industrial gas supply capacity is solved. The system comprises a hearth, a separating and returning system and a tail flue, the separating and returning system comprises a cyclone separator, and a low-temperature superheater high-temperature section, a low-temperature superheater low-temperature section, a high-temperature economizer, an SCR device, a low-temperature economizer and an air preheater are sequentially arranged in the tail flue in the flowing direction. A high-temperature flue gas leading-out pipeline is arranged between the low-temperature superheater high-temperature section and the low-temperature superheater low-temperature section, a low-temperature flue gas leading-out pipeline is arranged between the high-temperature economizer and the SCR device, and the outlet end of the high-temperature flue gas leading-out pipeline and the outlet end of the low-temperature flue gas leading-out pipeline are both connected with the inlet end of the mixer. The device is mainly used for the CFB boiler unit.
Owner:HARBIN BOILER CO LTD

Steam boiler

Conduction oil is adopted as a heat-carrying medium of a boiler tail flue gas heat recoverer and an external air pre-heater, flue gas low-temperature corrosion is effectively avoided, meanwhile, efficient recycling of waste heat of flue gas of the steam boiler is achieved, and the steam boiler is compact and convenient to install and arrange. The composite heat-carrying type steam boiler is characterized in that the steam boiler adopting water as a heat-carrying medium and the heat-conducting oil boiler adopting heat-conducting oil as a heat-carrying medium are combined, and the composite heat-carrying type steam boiler has a good application prospect.
Owner:WUXI WALIFA ENERGY-SAVING & ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD

Copper oxide-based photothermal conversion material as well as preparation method and application thereof

The invention discloses a copper oxide-based photo-thermal conversion material, a preparation method and application thereof, and belongs to the technical field of photo-thermal materials.According to the method, a copper oxide microflower / carbon nano tube photo-thermal conversion material is synthesized through a microwave hydrothermal method, microflowers are formed by mutually supporting ordered nanosheets, and carbon nano tubes are wound on the nanosheets; the refraction and reflection times of incident light in the material can be increased by utilizing a light trap formed by the staggered micro-nano hierarchical structure, so that multiple absorption of sunlight is effectively promoted, and light capture is increased. Meanwhile, through the synergistic photo-thermal effect of the metal oxide semiconductor / carbon-based composite material, the evaporation rate and the light absorptivity can be improved. In addition, the composite photo-thermal material is applied to a 3D nested structure solar driving interface steam system, and continuous and efficient seawater desalination is achieved.
Owner:YANBIAN UNIV +1

Fixing device for boiler

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.
Owner:JIANGXI KAISITONG ENVIRONMENTAL PROTECTION EQUIP

Dual-pressure gas turbine waste heat boiler with afterburning function

The double-pressure gas turbine waste heat boiler with the afterburning function comprises a boiler flue, and a second high-pressure superheater, a first high-pressure superheater, a high-pressure evaporator, a low-pressure superheater, a high-pressure economizer, a low-pressure evaporator and a low-pressure economizer are sequentially arranged in the boiler flue. An afterburning flue is arranged between the high-pressure superheater II and the high-pressure superheater I in the boiler flue; the high-pressure boiler barrel and the low-pressure boiler barrel are connected through a pipeline, and a shut-off valve and an adjusting valve are arranged in the pipeline. Under the afterburning working condition, the evaporation capacity of a low-pressure system is increased by opening a shut-off valve and an adjusting valve, the problem that the steam yield of the low-pressure system is insufficient is solved, the unit requirement is met by adjusting the opening degree of the adjusting valve and adjusting the steam yield of the low-pressure system, the low-pressure superheater is prevented from being in the dry burning condition, and safe and stable operation of the low-pressure superheater is guaranteed; under the non-afterburning working condition, the shut-off valve and the adjusting valve on the communicating pipeline between the high-pressure boiler barrel and the low-pressure boiler barrel can be closed, and the high-pressure steam yield is guaranteed.
Owner:HANGZHOU BOILER GRP CO LTD

Natural gas boiler cleaning device

The invention discloses a natural gas boiler cleaning device, and belongs to the technical field of boiler equipment.The natural gas boiler cleaning device comprises a boiler body and a combustor, the combustor is fixedly connected to one end of the boiler body, a smoke outlet is formed in the other end of the boiler body, a hearth is arranged in the boiler body, the combustor communicates with the hearth, and the combustor communicates with the hearth. The hearth is sleeved with a cleaning mechanism, the cleaning mechanism is slidably connected into the furnace body, one end of the furnace body is fixedly connected with an electric push rod, and the top end of the electric push rod is fixedly connected with the cleaning mechanism. In the using process of the boiler, the internal surface of the boiler can be regularly cleaned, incrustation generated on the inner wall of the boiler is removed, accumulation of the incrustation is delayed, the heat efficiency is improved, energy is saved, the frequency of overall overhauling and cleaning of the boiler during shutdown is reduced, and the production efficiency is effectively improved.
Owner:西安沣东华能热力有限公司

Centralized sampling device and method for water vapor of power plant

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.
Owner:华能海南发电股份有限公司南山电厂 +1

Condensation integrated steam boiler

The utility model discloses a condensation integrated steam boiler, which relates to the technical field of steam boiler design, and comprises an installation fixing plate, a residual smoke condensation utilization unit and a heating use unit, four corners of the lower side surface of the installation fixing plate are respectively and fixedly connected with a support leg, and the upper side surface of the installation fixing plate is fixedly connected with a steam boiler protection shell. A heating use unit is arranged in the steam boiler protection shell, the residual smoke condensation utilization unit comprises a smoke exhaust pipeline, a stable supporting rod, a purification filter element, a power pump, a smoke inlet pipeline and a recycling box, a smoke exhaust port is formed in the right side surface of the mounting fixing plate, and the smoke exhaust port extends into the steam boiler protection shell. The generated flue gas can be treated, the environment is prevented, the flue gas also has a relatively high temperature, heat in the flue gas is utilized, energy is saved, and the use efficiency is improved.
Owner:TAIKANG COUNTY DADAO XINYUAN TECHNOLOGY CO LTD

Combustion engine air inlet temperature coordinated regulation and control system based on waste heat multi-stage utilization and operation method

The invention discloses a gas turbine air inlet temperature coordinated regulation and control system based on waste heat multi-stage utilization and an operation method, and relates to the technical field of combined cycle unit energy conservation, the system comprises a waste heat recovery module, an air inlet temperature regulation and control module, an energy conversion module and a control module; high-temperature exhaust smoke of the waste heat boiler is used as a heat source to heat a flue gas heat exchanger at the tail of the waste heat boiler of the combined cycle unit to generate hot water, and the hot water is used for directly heating inlet air of a gas turbine, driving an absorption heat pump to generate cold water to cool the inlet air of the gas turbine or driving an organic Rankine cycle module to generate power to be connected into auxiliary power, so that multipurpose utilization of waste heat of the unit is realized; in addition, the invention provides an operation method for synergistically improving the efficiency of the system and the combined cycle unit, the wide-load operation capacity and the partial-load energy utilization capacity of the unit can be effectively improved, meanwhile, the waste heat recovery capacity under the high-temperature condition is guaranteed, and the energy consumption efficiency of the unit is comprehensively improved.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

Novel tubular steam generator

The utility model discloses a novel tubular steam generator, which relates to the technical field of steam generators and comprises a boiler body, a condenser and a water supply pump, and the condenser is positioned on the left side of the boiler body. The circulating water pump is arranged, soft water is pumped into the condenser, water in the condenser is preheated and deoxygenized through hot smoke and then enters the boiler body, the boiler body is heated through the combustor, and after air and natural gas are fully mixed through the combustor, combustion is more sufficient; the problems that most existing through-flow type gas steam generators have unsafe factors such as steam saturation and furnace body overheating phenomena, in addition, most condensers installed in equipment are pressure-bearing components, the pressure-bearing requirements of the condensers are high, and certain potential safety hazards exist are solved, and the purposes that the condensers are adopted as normal-pressure components, the potential safety hazards are reduced, and the service life of the condensers is prolonged are achieved. A special separating device is adopted inside, the steam saturation reaches up to 98% or above, and the phenomenon that a furnace body is overheated is greatly reduced.
Owner:SHANDONG PALAYTON BOILER MFG CO LTD

Water-fused salt cascade energy storage steam generation device and system

The utility model provides a water-fused salt cascade energy storage steam generating device and system, a first input end of a high-temperature water storage tank is communicated with a water supply device, a second input end of the high-temperature water storage tank is communicated with a gas constant pressure device, and a water storage electric heater is arranged in the high-temperature water storage tank and is used for heating water in the high-temperature water storage tank under a high-pressure condition; the input end of the fused salt storage and heat exchange device is communicated with the output end of the high-temperature water storage tank through a pipeline and a valve body, a steam opening is formed in the output end of the fused salt storage and heat exchange device, and a fused salt electric heater is arranged in the fused salt storage and heat exchange device and used for heating fused salt in the fused salt storage and heat exchange device. According to the water-fused salt cascade energy storage steam generation device, the heating and energy storage functions of the water body and the fused salt are achieved respectively, the steam production efficiency is improved, and the electric energy cost in the steam production process is reduced.
Owner:ZHEJIANG YANRONG ENERGY STORAGE TECHNOLOGY CO LTD

Electrolyzer system including a heat pump and method of operating thereof

An electrolyzer system includes stacks of electrolyzer cells configured receive steam and air, and output a hydrogen product stream and an oxygen exhaust stream, and a first heat pump configured to extract heat from the oxygen exhaust stream to generate a first portion of the steam provided to the stacks.
Owner:BLOOM ENERGY CORP

Intelligent monitoring method and device for boiler state and electronic equipment

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.
Owner:HONGTA TOBACCO (GROUP) CO LTD

Nuclear power plant secondary side cleanliness evaluation and radiation shielding method

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.
Owner:YANGJIANG NUCLEAR POWER

Inlet duct system for a heat recovery steam generator

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.
Owner:GE INFRASTRUCTURE TECH LLC

Steam boiler with steam waste heat recovery function

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.
Owner:SUZHOU WEISUO THERMAL ENERGY EQUIP CO LTD

Anti-abrasion and anti-explosion detection early warning method and system for boiler

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.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Steam system

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.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI