387results about "Boiler indication operations" patented technology

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 present application discloses a fault prediction system and electronic equipment, which relates to the field of data processing technology, including: a data acquisition module, a data fusion module and a fault prediction module; the data fusion module is connected with the data acquisition module and the fault prediction module; the data acquisition module is used to collect multi-dimensional data of boiler heating surface tubes, and the multi-dimensional data includes temperature data, pressure data, flow data, vibration data, audio sound wave data and wall thickness data; the data fusion module is used to fuse multi-modal data, and analyze the health status of boiler heating surface tubes through big data analysis and deep learning algorithms, and determine the risk information of boiler heating surface tubes based on the analysis results; the fault prediction module is used to predict the fault of boiler heating surface tubes based on risk information. Compared with the current existing technology, the present application can identify the potential fault or wear risk of equipment in advance and issue early warnings in time.

The invention discloses a thermal power generating unit operation state detection method and system, and relates to the technical field of operation state detection, and the method comprises the steps: S100, building a working condition variable label; s200, carrying out statistics on correlation coefficients of sensors and faults under various working conditions in historical operation data of the thermal power generating unit, dynamically updating weights, and storing the weights in a working condition database; s300, based on the energy transfer chain of the thermal power generating unit, establishing a parameter incidence matrix between devices; according to the method, the data weights of different sensors are adaptively adjusted according to the real-time operation state of the equipment, the defect that the traditional multi-sensor fusion adopts fixed weight or simple weighted average and is difficult to adapt to the working condition change is overcome, a physical relationship network between the equipment is constructed, key associated parameters are identified in an energy transfer form, and the fault identification accuracy is improved. The robustness of anomaly monitoring under complex working conditions is improved, and the false alarm rate is reduced.

Systems and methods for generating electrical power in an organic Rankine cycle (ORC) operation include one or more heat exchangers incorporated into mobile heat generation units, and which will receive a heated fluid flow from one or more heat sources, and transfer heat therefrom to a working fluid that is circulated through an ORC unit for generation of power. In embodiments, the mobile heat generation units comprise pre-packaged modules with one or more heat exchangers connected to a pump of a recirculation system, including an array of piping, such that each mobile heat generation unit can be transported to the site and installed as a substantially stand-alone module or heat generation assembly.

【Problem】To provide a method for diagnosing faults in an industrial boiler based on a physics knowledge adversarial generation network even when boiler fault data is of poor quality or insufficient. 【Solution】First, step 1 of obtaining historical operation data of the industrial boiler and performing preprocessing of the data; step 2 of constructing a physics knowledge neural network model, constructing a mass and energy conservation formula related to the boiler, and simulating the operation of the boiler by the physics knowledge neural network; step 3 of constructing an improved adversarial generation network model, where the adversarial generation network generates good data using the competition between a generator and a discriminator, and its parameters are alternately trained by the generator and the discriminator; step 4 of training a diagnostic model using a training sample set, performing a fault diagnosis test using a test set, and verifying the effectiveness and superiority of the method by algorithm comparison. 【Selected Drawing】Figure 1

The invention belongs to the technical field of boiler monitoring, and particularly relates to a non-contact boiler expansion monitoring device capable of being movably installed. Comprising an expansion displacement measuring device, a movable installation assembly and a marker, the expansion displacement measuring device is fixedly arranged on the movable installation assembly, and the marker is directly or indirectly arranged on the outer wall of a boiler to be monitored. The expansion displacement measuring device is aligned with the marker during expansion monitoring operation; according to the invention, the monitoring points can be deployed conveniently and quickly without complex transformation of the boiler body, the boiler expansion data can be acquired in real time in a high-precision and non-contact manner, a precise basis is provided for boiler operation and maintenance, and the boiler operation safety and management efficiency are improved.

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 present invention belongs to the technical field of stress detection and provides a method and device for testing stress of a high-temperature component of a power plant boiler. The adjusting assembly includes a plurality of bearing blocks, each bearing block is provided with an accommodating groove vertically, limiting blocks are disposed at two ends of the accommodating groove symmetrically, an elastic member, a first connecting rod, and a second connecting rod are disposed in the accommodating groove, and a limiting plate is fixedly connected to one end of each of the first connecting rod and the second connecting rod. According to the present invention, lengths of the first connecting rod and the second connecting rod extending out of the accommodating groove are adjusted, so that the device can be adjusted according to a caliber of a pipeline of the power plant boiler.

The invention discloses a boiler operation state intelligent monitoring method and system, and the method comprises the steps: collecting multi-source heterogeneous data in a boiler operation process, carrying out the cleaning and normalization processing of the multi-source heterogeneous data, extracting key features through wavelet transform, and obtaining standard multi-source heterogeneous data; modeling time series data in the standard multi-source heterogeneous data on the basis of an LSTM (Long Short-Term Memory) network, capturing a dynamic change trend of boiler operation to obtain time series characteristics, analyzing a hearth flame image and an infrared thermal image by using a CNN (Convolutional Neural Network), and extracting combustion state characteristics and thermal distribution characteristics; and based on the comprehensive state vector, a confidence interval of each feature dimension is calculated through a GMM Gaussian mixture model, an operation state deviation degree is analyzed and evaluated in combination with an entropy value, and when the deviation degree exceeds a preset threshold value, graded early warning is triggered. And the accuracy of boiler operation state intelligent monitoring is improved.

The invention relates to the technical field of boiler temperature measurement, and discloses a boiler furnace temperature field measurement system based on multi-sensor fusion. According to a temperature acquisition module of the system, a plurality of groups of infrared temperature measurement sensors and thermocouple sensors are arranged in preset space grids of a boiler hearth, and real-time temperature data of each space grid are synchronously acquired; the data fusion module performs time alignment and space registration on the acquired data to generate a space-time synchronous original temperature data set; the noise suppression module performs multi-scale decomposition on an original data set based on wavelet transform, extracts a high-frequency noise component and performs adaptive filtering, and outputs a temperature data sequence after noise reduction; the temperature field reconstruction module reconstructs a hearth three-dimensional temperature field distribution model through a radial basis function interpolation algorithm according to the denoised data sequence; and the dynamic compensation module calculates the heat conduction lag compensation amount of the temperature field distribution model according to the flowing speed of the flue gas in the hearth and the working condition parameters of the combustor, and generates a compensated dynamic temperature field model.

The invention relates to the technical field of automatic control, in particular to a water quality control method and system for a through-flow boiler. The method comprises the following steps: collecting a liquid sensing signal and a temperature sensing signal in the through-flow boiler; performing preliminary liquid resistance value calculation processing according to the liquid sensing signal to generate preliminary liquid resistance value data; performing liquid resistance value correction processing of temperature compensation on the initial liquid resistance value data based on the temperature sensing signal to generate liquid resistance value data; water feeding operation of a water feeding pump of the through-flow boiler is executed; performing instant liquid conductivity and dissolved solid concentration analysis processing on the liquid resistance value data according to the water supply operation of the water supply pump to respectively obtain an instant liquid conductivity signal and instant dissolved solid concentration data; and according to the instant liquid conductivity signal and the instant dissolved solid concentration data, pollution discharge control operation of the through-flow boiler is executed. By analyzing the water quality characteristics of the through-flow boiler, intelligent and efficient water quality pollution discharge control is realized.

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 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 relates to a hearth temperature measuring system, which comprises a video monitoring module, an image monitoring module, an integrated sensor platform and a central processing unit (CPU), and is characterized in that the video monitoring module comprises at least one high-temperature camera, a video signal processing device and a display which are arranged in a boiler hearth; the high-temperature camera collects a flame video in the hearth and transmits the flame video to the display through the video signal processing device; the image monitoring module comprises an image acquisition card, a field programmable gate array (FPGA) and a graphic processing unit (GPU); the image monitoring module is used for acquiring image data in the hearth from a flame video in the hearth and transmitting the image data to the central processing unit (CPU); the integrated sensor platform comprises a plurality of different types of sensors, and each type of sensor is used for collecting operation parameters of the corresponding type of the coal-fired unit and transmitting the operation parameters to the central processing unit; and the central processing unit CPU outputs hearth temperature measurement data through the image data in the hearth and the operation parameters of the coal-fired unit.

The invention provides a boiler four-pipe leakage monitoring device and method and a boiler four-pipe system.The boiler four-pipe leakage monitoring device comprises a measuring pipeline, a pressure sensor and a controller, the measuring pipeline is used for being inserted into boiler four pipes, the pressure sensor is communicated with an inner cavity of the measuring pipeline, the pressure sensor is electrically connected with the controller, and the controller is electrically connected with the measuring pipeline. And the signal is transmitted to the controller. According to the boiler four-pipe leakage monitoring device, the pressure sensor is adopted to monitor the pressure of the measuring pipeline so as to judge whether the boiler four pipes leak or not, and compared with the prior art, the pressure sensor is slightly influenced by environmental noise and the like, so that the stability of the monitoring process can be effectively improved; and the probability of false alarm and missing alarm phenomena is reduced.

The invention discloses a boiler anti-leakage monitoring and positioning method and system, a product and a medium. The method comprises the following steps: when the dissolved hydrogen concentration variation of two or more monitoring units in a unit time period exceeds a preset rising or falling threshold value and one of the monitoring units periodically fluctuates, controlling to apply instantaneous electric pulse disturbance to all the monitoring units; collecting dissolved hydrogen response change values and capacitance change values before and after the pulse of each monitoring unit, and selecting the unit with the maximum dissolved hydrogen response change value as the unit with the maximum amplitude; and if the capacitance change value of the unit with the maximum amplitude has nonlinear offset or is lower than a threshold value, judging whether the change trend of the unit with the maximum amplitude is consistent with that of other units, and if so, pausing the alarm function of the unit with the maximum amplitude and continuing to monitor other units. By implementing the technical scheme provided by the invention, the accuracy of boiler leakage monitoring and positioning is improved.

The invention relates to the technical field of thermal power generation, in particular to a boiler operation optimization method, device, equipment, medium and program, and the method comprises the steps: obtaining the grating fiber Bragg wavelength data of a boiler during peak regulation operation; the grating fiber Bragg wavelength data are input into a pre-trained boiler temperature prediction model, the boiler temperature prediction model outputs the predicted temperature of the boiler, the boiler temperature prediction model comprises a function relationship between wavelength and temperature, the predicted temperature of the boiler is determined by using the function relationship, and the function relationship between the wavelength and the temperature is P (x) = a0 + a1x + a2x2 +... + akxk; wherein P (x) is the predicted temperature of the boiler, x is fiber bragg grating Bragg wavelength data, a0, a1, a2,..., ak are coefficients of a polynomial, and k is the order of the polynomial; and optimizing the operation state of the boiler according to the predicted temperature. Therefore, the problems that in the related technology, when the coal-fired boiler is operated in a deep peak regulation mode, the temperature change in the boiler is difficult to accurately capture, and consequently the operation stability of the boiler is affected by local overheating are solved.

The invention discloses an electrode boiler corrosion on-line monitoring sensor which comprises a spiral guide rail, the guide rail extends in a threaded mode in the vertical direction, the electrode boiler is sleeved with the guide rail, the lower end of the guide rail is rotationally connected to an assembly base, and the upper end of the guide rail is connected with the upper end of the electrode boiler through a vertical adjusting mechanism. A walking type monitoring mechanism capable of moving along the guide of the guide rail is assembled on the guide rail, and the monitoring end of the walking type monitoring mechanism is in contact with the peripheral wall of the electrode boiler. According to the invention, the corrosion condition of the inner circumferential wall of the electrode boiler can be effectively monitored, the monitoring accuracy and comprehensiveness are improved, an operator can adjust the adding amount of an agent in boiler water according to the monitoring condition, and maintenance personnel can conveniently carry out targeted maintenance on the corrosion area of the electrode boiler subsequently, so that the use safety of the electrode boiler is improved, and the service life of the electrode boiler is prolonged. And meanwhile, the service life of the electrode boiler is prolonged. The method is suitable for the technical field of electrode boiler corrosion monitoring.

The invention belongs to the technical field of cooking equipment, and discloses a steam generation assembly, a control method of the steam generation assembly, a steam box and an integrated cooker. According to the steam generation assembly, the water inlet of the heating disc is provided with the protruding part, the protruding part is higher than the water level in the water tank, the water temperature and / or the temperature rise rate of the position, close to the water inlet, of the water inlet pipe are / is monitored through the first temperature sensing element, and the water shortage state of the water tank can be rapidly judged due to the fact that the water amount is small and the temperature change is more remarkable. And after determining that the water inlet is lack of water, further judging whether the heating disc is in dry burning or not by combining the heating body temperature and / or the temperature rise rate monitored by the second temperature sensing element. And the accuracy and the reliability of judgment are improved through cooperative monitoring of the double temperature-sensing elements. In addition, by recognizing the water shortage of the water tank in advance, the temperature threshold T3 of the heating body in the dry burning state can be properly reduced, the logic judgment time is shortened, the dry burning duration is shortened, the heating disc is effectively protected, and the service life of the heating disc is prolonged.

The utility model relates to a steam boiler for a fermented soybean workshop. The steam boiler comprises a body. A burner is arranged on one side of the body; a smoke pipe is arranged in the body, and a smoke chamber is arranged on the burner; the smoke pipe is provided with a smoke inlet and a smoke outlet; a multi-channel lifting smoke exhaust assembly is arranged in the smoke chamber; a first inlet and a second inlet which are communicated with the smoke outlet are formed in the multi-channel lifting smoke exhaust assembly; the multi-channel lifting smoke exhaust assembly is connected with the driving end; and a temperature detection element is arranged in the flue gas chamber. Under the condition that the length of the smoke pipe is not increased, the temperature of the smoke subjected to heat exchange in the boiler is detected through a temperature detection element; if the temperature of the smoke is high, it is proved that heat exchange between the smoke and water is not thorough, the second inlet in the multi-channel lifting smoke exhaust assembly is controlled to be connected with the smoke outlet, and due to the fact that the flow limiting plug is arranged in the second inlet, the smoke passing time can be prolonged, the duration of the smoke in the smoke pipe is prolonged, and more thorough heat exchange is facilitated.

The invention relates to a water level control method and device of a steam generator and computer equipment. The method comprises the steps that under the condition that it is detected that a main feed water valve of the steam generator has an upward floating fault, the feed water flow adjustment amount of the steam generator is determined according to the inlet and outlet water flow, the current water level value and the preset water level fixed value of the steam generator; determining an opening signal of a bypass valve based on a preset corresponding relation between the feed water flow and the opening signal of the bypass valve of the steam generator and the feed water flow adjustment amount; and the opening degree of the bypass valve is adjusted according to the opening degree signal, so that water level control over the steam generator is achieved. By the adoption of the method, disturbance to other steam generators can be avoided while the water level of the steam generator with the main water supply valve having the floating fault is adjusted to the stable state.

Devices, systems, and techniques relating to steam trap monitoring are described. These include battery-less steam trap monitors that run on power harvested from their environments, systems for acquiring steam trap monitor data for the traps in a facility or across multiple facilities, and techniques for processing steam trap monitor data to reliably determine the status of individual steam traps and potentially other system parameters.

A gas amount prediction method is a method of predicting an amount of gas generated in a plant, including: a generation amount calculation step in which a generation amount of gas that is actually usable is calculated using a learning model that learns a relationship between a generation amount of gas and a usage amount of gas in past operation data.

To stabilize the water quality of boiler water in a boiler, thereby preventing the generation of carry-over in which a large amount of boiler water is mixed into generated stream, corrosion of each part of a can body, and an overheat state of a heat transfer surface due to the adhesion of scale to a can wall surface.SOLUTION: A method of stabilizing the water quality of boiler water in a boiler is provided. A water supply pump for supplying the boiler water to the boiler is intermittently operated. Whenever the water supply pump is intermittently operated, blow operation for discharging the boiler water to the outside of a can is performed.SELECTED DRAWING: Figure 2

To provide a heat transfer surface cleaning system capable of making proper cleaning capacity act on a thickness of a deposit adhering to a heat transfer surface.SOLUTION: A heat transfer surface cleaning system comprises: an infrared camera that measures a surface temperature of a heat transfer surface by photographing the heat transfer surface exposed inside the boiler; a thermometer that measures a gas temperature in an internal space of the boiler; a cleaning device that cleans the heat transfer surface by injecting cleaning fluid; and a controller that controls an injection amount of the cleaning fluid. The controller performs machine learning of outputting the injection amount, acquiring state values including the measured surface temperature of the heat transfer surface and the gas temperature, acquiring a post-cleaning gas temperature measured by the thermometer after cleaning is performed by the cleaning device based on the injection amount, calculating a reward based on the post-cleaning gas temperature, and determining the injection amount to be output at current state values based on the injection amount, a state amount and the reward.SELECTED DRAWING: Figure 5

A method of integrating steam systems of first and second chemical plants, which includes transferring steam from at least one lower pressure steam header of a first steam production and transport system in the first plant to at least one lower pressure steam header of a second steam production and transport system in the second plant, such that steam produced by the first steam production and transport system is transferred to the second steam production and transport system in the second plant, which can reduce the GHG emissions of the combined first and second plants.

The present application relates to the technical field of heating boiler maintenance, and in particular to a heating boiler pressure maintenance method and system. It includes: establishing a heating boiler pressure monitoring model; presetting multiple pressure monitoring points, generating a boiler pressure evaluation value based on the real-time pressure data of the pressure monitoring points and the heating boiler pressure monitoring model; generating a boiler maintenance instruction based on the boiler pressure evaluation value. By establishing a heating boiler pressure monitoring model, setting multiple monitoring points, performing a horizontal analysis of the boiler pressure, and performing a vertical analysis based on the historical pressure data of each monitoring point, real-time monitoring of the heating boiler is achieved, and at the same time, the maintenance instructions are dynamically adjusted according to the boiler pressure evaluation value at the feedback time node, to ensure the timeliness of the maintenance, timely eliminate the potential failure risks of the heating boiler, and ensure the efficient operation of the heating boiler.

The invention relates to a thermal power plant electric steam boiler coupling spherical heat storage tank system and a peak regulation and frequency modulation method, and belongs to the technical field of novel energy storage. The system comprises a thermal power generating unit, a steam extraction outlet of the thermal power generating unit is connected with a first three-way valve, the first three-way valve is further connected with a second three-way valve and a first regulating valve, and the outlet end of the first regulating valve is connected with a steam heat storage spherical tank; a power supply outlet of the thermal power generating unit is electrically connected with an electric steam boiler and a frequency modulation control module, the output end of the electric steam boiler is connected with a second adjusting valve, and the output end of the second adjusting valve is connected with the steam heat storage spherical tank. The output end of the steam heat storage spherical tank is connected with an electric superheater, the output end of the electric superheater is connected with a second three-way valve, and the output end of the second three-way valve is externally connected with an industrial steam pipe network. The frequency modulation control module is further electrically connected with the first adjusting valve. Water in the electric steam boiler is heated to generate steam through thermal power flexible peak-shaving frequency-modulation surplus electric power, or steam is extracted from a steam turbine and fed into the steam heat storage spherical tank for heat storage and energy storage, and the peak-shaving frequency-modulation response capacity of the thermal power generating unit is improved.

To provide an in-furnace monitoring structure that can image a furnace interior with a simple and inexpensive configuration, and to provide a boiler including the same, a monitoring system and an inspection method.SOLUTION: An in-furnace monitoring structure 100 includes: a pinhole member 110 made of a heat insulation material, installed on an outside of a furnace wall 150 which is formed with a furnace wall through-hole 151, and formed with a pinhole 111 for viewing an interior of the furnace wall 150 via the furnace wall through-hole 151; and an imaging part 140 for imaging the interior of the furnace wall 150 via the furnace wall through-hole 151 and the pinhole 111.SELECTED DRAWING: Figure 1