8860 results about "Thermal efficiency" patented technology

The invention relates to the field of power equipment control data processing, in particular to a boiler combustion optimization control method based on data driving, which comprises the following steps of: acquiring multi-source data such as temperature field distribution, air and smoke pressure, smoke components and coal quality characteristics, and eliminating noise interference by adopting sliding window mean filtering; generating a standardized feature matrix in combination with principal component analysis and a dynamic time warping algorithm; constructing a dynamic coupling model fusing a gradient boosting decision tree and a long short-term memory network, analyzing a nonlinear relationship between pulverized coal particle size distribution and a wind-coal ratio, and predicting combustion efficiency, pollutant concentration and temperature field uniformity; and model parameter self-correction and weight dynamic adjustment are triggered through actual combustion data feedback, and a closed-loop control link is formed. According to the method, accurate modeling of the multi-physical field coupling characteristic of the combustion system is achieved, the time sequence generalization ability under the dynamic working condition is improved, and the purposes of heat efficiency improvement and pollutant emission reduction are effectively balanced.

The invention relates to the technical field of control and regulation systems, in particular to a hearth auxiliary regulation control system which comprises a data processing module, an analysis module, a control module, a regulation and control module, an optimization module and a safety early warning module. The data processing module collects temperature data of a hearth combustor area, a water cooling wall and a tail flue in real time through a distributed temperature sensor network, and a dynamic combustion field three-dimensional model is generated through Kalman filtering denoising, redundancy cross validation and a temperature compensation algorithm in combination with combustor flame position signals and an air door opening state. And the optimization module updates the strategy weight based on the combustion efficiency improvement rate, and reinforces learning to extend the adaptive boundary of the strategy library. And the safety early warning module calculates the matching coefficient of the pipe wall temperature and the allowable stress in real time, triggers a grading intervention strategy to reduce the overtemperature risk, forms full-process closed-loop control, and improves the thermal efficiency and the operation safety of the boiler.

The invention provides a power plant steam extraction energy storage and power generation optimization method and system based on fused salt heat storage, and relates to the technical field of electric power. The extracted steam is introduced into a multi-stage tandem type steam-molten salt heat exchanger group; when the load of the power grid is higher than a preset dynamic threshold value, conveying the high-temperature fused salt to the cascade fused salt-water heat exchanger group by adopting a multi-path parallel fused salt conveying system; in the fused salt-water heat exchanger group, a structure of combining countercurrent flow heat exchange and a spiral heat exchange pipe is adopted, so that the heat exchange efficiency is improved, and superheated steam is generated; the generated high-temperature and high-pressure steam is conveyed to the improved steam turbine with the variable air inlet area, the air inlet area is dynamically adjusted according to the power grid load requirement, and the efficiency of the steam turbine is optimized; the intelligent power grid technology and the demand side response strategy are utilized to realize bidirectional interaction between the power generation end and the power utilization end, and power supply and demand are dynamically balanced.

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

The invention relates to the technical field of remote control, in particular to a steam boiler operation remote dosing control system which comprises a multi-source acquisition module, a state judgment module, a path switching module, a quality verification module and a health evolution module. According to the method, a monitoring system is constructed by fusing multi-dimensional parameters such as flow, pressure and temperature in real time, a single sensor error is eliminated through Kalman filtering, a heat transfer correlation model is established to quantify the water quality and thermal coupling relation, a pipeline blockage critical point is pre-judged based on grey correlation analysis, and non-inductive switching of a dosing path is achieved by adopting a double-electromagnetic-valve redundancy architecture. The stability of medicament conveying is verified by combining the flow offset of a standby path, closed-loop comparison of a concentration amplification value and a target value is synchronously executed to trigger self-calibration to correct the feeding deviation, a water quality adjustment-path switching-precision verification linkage control chain is formed, the abnormal response period is shortened, the scaling rate of a heat transfer surface is reduced, and the stability of the heat efficiency of the boiler is maintained. The equipment maintenance period is prolonged.

The invention discloses a cold plate-immersion liquid cooling cooperative heat dissipation method based on steam zone coupling modeling, and relates to the technical field of cooperative heat dissipation. Comprising the following steps of S1, collecting collaborative heat dissipation monitoring data of each key position in real time, and performing data preprocessing; s2, the comprehensive risk of the steam area is judged, and a risk cooling adjustment instruction is issued according to the comprehensive risk judgment result; s3, receiving a risk cooling adjustment instruction, carrying out collaborative heat dissipation, evaluating the collaborative heat dissipation capability, adjusting the rotating speed of a circulating pump and the opening degree of a valve, and requesting condensation backflow adjustment; s4, judging the adjusting quantity of condensation reflux, executing reflux adjustment and performing safety monitoring; and S5, continuously monitoring the data of each link, and carrying out anomaly detection on the state of each link to realize anomaly regulation and control. The problems that in an existing single-phase cold plate or two-phase immersion liquid cooling mode, steam accumulation is prone to occurring in a high-heat-flow scene, so that the pressure intensity is increased, the boiling point is increased, and the heat exchange efficiency is reduced, and then the operation reliability of equipment is affected are solved.

The invention discloses a boiler combustion strategy optimization method, system, equipment and medium, and relates to the technical field of combustion strategy optimization, and the method comprises the steps: employing a width-adaptive triangular convolutional neural network to establish a prediction model of boiler thermal efficiency, NOx emission and superheated steam temperature; constructing a boiler multi-target combustion optimization intelligent agent, and introducing a maximum entropy parameter to obtain all boiler combustion optimal strategies as a target, and obtaining any strategy of which the value is higher than a threshold value; and based on the combustion strategy, outputting a next state through the trained prediction model, obtaining a reward corresponding to the current state, and performing iterative optimization on the boiler multi-target combustion optimization agent according to the current state, the combustion strategy, the next state and the reward corresponding to the current state. And taking the combustion strategy until the optimal reward is obtained as the optimal boiler combustion strategy. On the premise of guaranteeing the stability of the hot steam temperature, the effects of reducing the emission concentration and guaranteeing the stability of the heat efficiency of the boiler are achieved.

The invention discloses a dispersed transformer cooling system and method, and relates to the technical field of transformers, integration supporting rods are mounted on the inner side of a transformer integration box through fixing bolts, a treatment transformer box is welded to the top ends of the two integration supporting rods, a hollow supporting rod is clamped to the inner side of the treatment transformer box, and a transformer core is mounted at the top end of the hollow supporting rod; the device effectively solves the problems that in the prior art, due to the fact that oil cannot circulate, heat is concentrated at the position of a transformer core, the internal temperature cannot be homogenized, only external air cooling treatment is conducted, the heat removal efficiency is poor, meanwhile, oil overflow and oil liquid level control are utilized, and the heat removal efficiency is poor. And the heat exchange area is increased, and the influence of oil on the operation environment and the operation stability is avoided, so that the heat exchange area is increased, the heat exchange speed is increased, the overall temperature is balanced, and stable operation treatment of the transformer is realized.

The invention relates to a boiler combustion optimization control system of a thermal power plant, relates to the technical field of thermal power generation control, and aims to solve the problems of inaccurate multi-source data perception, slow control response and insufficient multi-target collaborative optimization capability under fire coal quality fluctuation and load change. The system comprises a data perception and fusion module, a working condition self-adaptive identification module, a multi-target dynamic optimization decision module and a distributed execution control module, and through multi-source data acquisition and feature extraction, depth time sequence mode identification, multi-target optimization model solving and distributed coordination control, the multi-target dynamic optimization decision module and the distributed execution control module are subjected to multi-source data fusion. Dynamic balance of boiler heat efficiency improvement and nitrogen oxide emission reduction is achieved, and adaptability and control precision of the system under complex working conditions are enhanced.

The invention discloses a horizontal shell and tube heat exchanger, which relates to the technical field of heat exchangers and comprises a shell, two sides of the shell are fixedly connected with a first tube box and a second tube box respectively, an inner cavity of the shell is provided with a plurality of baffle plates, each baffle plate is provided with a plurality of heat exchange tubes, and one side of each baffle plate is provided with a control assembly mounted in the second tube box. According to the horizontal shell and tube heat exchanger, the scraping ring can move left and right along with the movable rod, impurities on the outer wall of the heat exchange tube can be scraped away, in the long-term operation process of heat exchange equipment, various impurities are prone to being accumulated on the outer wall of the heat exchange tube, the impurities can reduce the heat exchange efficiency and increase the energy consumption of the equipment, and the scraping ring can slide to clean the heat exchange tube. The impurities can be effectively removed in time, the surface of the heat exchange pipe is kept clean, it is ensured that heat exchange equipment is in a good working state all the time, good heat exchange between a heat exchange medium and the heat exchange pipe can be ensured through the clean outer wall of the heat exchange pipe, heat resistance is reduced, and therefore the heat exchange efficiency is improved.

The joint module comprises a motor and a harmonic reducer, the motor comprises a shell, a stator assembly and a rotor assembly, the shell comprises an outer shell and an inner oil cavity, a first oil port and a second oil port are formed in the two ends of the inner oil cavity respectively, the stator assembly is fixed to the inner side of the inner oil cavity, and the rotor assembly is fixed to the outer side of the inner oil cavity. The rotor assembly comprises a rotating shaft and a rotor hub arranged on the rotating shaft, the rotor hub comprises an inner shell and an outer shell, the inner shell and the outer shell are fixed through a connecting piece, an oil stirring channel is formed, the harmonic reducer comprises a wave generator, a flexible gear, a supporting bearing outer ring and a supporting bearing inner ring, and the rotating shaft is connected with the wave generator. The wave generator drives the flexible gear to deform, the flexible gear is fixed to the rear end cover, the outer ring of the supporting bearing is fixed to the rear end cover, and a gear ring is arranged on the inner wall of the inner ring of the supporting bearing and is in staggered tooth transmission with the flexible gear. Oil liquid is in direct contact with a stator heating source, the stator heat dissipation efficiency is improved, the rotor hub drives the oil liquid to flow, and the heat exchange efficiency is improved.

The invention discloses a two-phase cold plate heat dissipation control method and system based on vibration and flow coordinated regulation and control, and relates to the technical field of liquid cooling heat dissipation. The two-phase cold plate heat dissipation control method and system based on vibration and flow collaborative regulation and control comprises the steps that S1, cold plate collaborative heat dissipation data is collected in real time, and the cold plate collaborative heat dissipation data is preprocessed; s2, the heat dissipation degradation degree of the two-phase cold plate is evaluated, heat dissipation state classification judgment is executed, and a regulation and control instruction is issued; s3, executing the control instruction, evaluating the regulation and control response state of the cooling path, judging the regulation and control effect, and triggering a time-sharing coordinated regulation and control strategy; and S4, whether heat dissipation of the cooling path fails or not is judged, the thermal degradation trend of the two-phase cold plate is evaluated, and a liquid path switching strategy is executed. The problems that in an existing cold plate liquid cooling heat dissipation technology, oil films are generated by cooling liquid due to temperature changes, the oil films are prone to being attached to the inner walls of micro-pore channels, flowing is blocked, the heat exchange efficiency is reduced, and local overheating and unstable equipment performance are further caused are solved.

The present invention relates to the technical field of boiler drain treatment, and specifically to a headless full thermal deaerator for collecting boiler drain, comprising: a deaerator, a connecting shell and a base, the connecting shell is located outside the deaerator, the base is located at the bottom of the deaerator and the connecting shell, the end of the deaerator away from the deaerator is fixedly connected with a drain inlet pipe, the drain inlet pipe extends to the inside of the deaerator and is fixedly connected with a drain dispersion head, the inside of the drain inlet pipe and one end close to the drain dispersion head is provided with a guide component, the outside of the drain dispersion head is provided with a drain water separation tray, the end of the drain water separation tray away from the drain dispersion head is provided with a softened water pipeline, the end of the connecting shell close to the deaerator is fixedly connected with a sealing component, the connecting shell is connected to the deaerator through the connecting component, and a buffer component is provided inside the base. The beneficial effects of the present invention are: boiler drain is recycled, the deoxidizer and steam are mixed, the steam consumption for deoxidation is reduced, the thermal efficiency of the boiler is improved, and high efficiency and energy saving are achieved.

An automatic control system of an air source heat pump analyzes collected multi-dimensional operation parameters in real time based on a machine learning algorithm, constructs a high-precision thermal load prediction model, predicts thermal load requirements in the future 1-24 hours, controls prediction errors within 5%, and achieves minimization of energy consumption and maximization of heat storage efficiency on the premise of meeting operation constraints. The overall energy consumption is reduced by 15%-25% compared with that of a traditional system, the heat loss is reduced by dynamically adjusting the flow of a heat storage medium and optimizing the thermodynamic process of heat storage and heat release, and the heat storage efficiency is improved by 10%-15%. According to the invention, the advanced machine learning algorithm is adopted through the big data analysis module, the multi-dimensional operation parameters are analyzed in real time, a high-precision thermal load prediction model is constructed, the thermal load demand in the future 1-24 hours is predicted, and the prediction error is controlled within 5%.

The invention discloses a twisting clamping refrigerating and heating device with cold and hot end separation and work recovery functions. The twisting clamping refrigerating and heating device comprises a stator module, a rotor module and a heat exchange module. The stator module comprises an inner gear and an outer gear, and teeth are arranged on partial edges of the inner gear and the outer gear. The rotor module comprises a torsion clamping refrigerant and a loading gear; the heat exchange module comprises an inner cylinder and an outer cylinder. And the loading gear revolves to drive the torsion clamping refrigerant to change the heat exchange position, and rotates to drive the torsion clamping refrigerant to be loaded and unloaded. When the loading gear is meshed with the inner gear, the loading gear rotates in the forward direction, and the torsion clamping refrigerant generates heat due to loading; when the loading gear is meshed with the outer gear, the loading gear rotates reversely, and the torsion clamping refrigerant absorbs heat due to unloading. According to the device, a heat exchange area is effectively separated, the problem of mutual interference of cold and heat is avoided, and the heat exchange efficiency and power are greatly improved; the resilience force generated when the torsion clamping refrigerant is unloaded is transmitted to the loading area, auxiliary power is provided for the loading process, recycling of work is achieved, and the energy utilization efficiency is improved.

The invention relates to the technical field of heat energy recovery, in particular to an efficient multistage waste heat recovery and reutilization combined heat and power generation system which comprises a heat output calculation module, a temperature difference mode analysis module, a heat exchange efficiency analysis module, an optimal parameter identification module, a condenser management module and a condensate water recovery control module. According to the method, temperature, flow and pressure data of multiple positions are collected in real time, the heat fluctuation trend under multiple input conditions is accurately predicted, a basis is provided for follow-up optimization decision making, and through dynamic prediction of a temperature difference mode, the heat exchanger inlet and outlet temperature and the mutual relation between multiple equipment working parameters are combined, so that the heat exchange efficiency is improved. Real-time evaluation of the heat exchange efficiency is achieved, construction of a working model of a heat exchanger is combined, optimal working parameters under multiple temperature gradients are accurately recognized, optimization of working parameters of a condenser and condensate water recovery equipment is combined, the energy utilization rate of the combined heat and power generation system is increased, energy consumption is reduced, and resource waste is reduced.

The invention discloses a self-correction optimization method and system for heat transfer boundary conditions of a water jacket heater, and particularly relates to the technical field of condition optimization control. The method comprises the following steps: constructing a thermal fatigue deformation trend estimation model by collecting a furnace wall surface temperature sequence, furnace wall surface heat flux distribution information and a furnace wall thermal stress response curve of a furnace body structure component, and generating a geometric parameter drift vector; performing structure equivalent mapping analysis on the geometric parameter drift vector, and extracting contact thermal resistance change information; performing furnace wall heat flow field reconstruction on the geometric parameter drift vector to obtain a dynamic correction vector; and the contact thermal resistance change information and the heat flow correction vector are comprehensively analyzed, a time-varying boundary condition inversion model is constructed, and a multi-parameter coupling boundary correction set is output and used for updating the boundary conditions in the water jacket heating furnace heat transfer simulation model, so that identification and self-adaptive correction of the boundary conditions are realized, and the heat transfer control precision and the heat efficiency are improved.

The invention discloses a single-phase immersed liquid cooling temperature stratification evaluation and disturbance liquid injection balance control system, and relates to the technical field of liquid cooling circulation structures. The single-phase immersed liquid cooling temperature stratification evaluation and disturbance liquid injection balance control system comprises a backflow liquid multi-point liquid inlet dynamic monitoring module used for collecting liquid cooling branch state data; the immersion liquid temperature layering monitoring module is used for evaluating the non-uniform degree of heat distribution and adjusting a disturbance liquid injection strategy; the liquid flow distribution equilibrium evaluation module is used for analyzing the matching degree of liquid flow distribution and heat dissipation and optimizing a flow direction coverage strategy; the cooling path dynamic judgment and switching module is used for evaluating the cooling state and the thermal load change and regulating and controlling the circulation path; and the immersed liquid cooling cabinet local disturbance self-balancing regulation and control module is used for guiding local convection and adjusting the disturbance direction. The problem that heat dissipation efficiency of a chip is affected by local heat accumulation in the immersed liquid cooling cabinet due to serious cold and hot lamination after backflow of a cooling liquid branch is solved.

The invention relates to the technical field of motor heat dissipation, and discloses a lightweight motor heat dissipation structure, which comprises a shell, a stator structure, a rotor structure and a heat dissipation fan, cooling oil in the liquid storage tank is guided into the annular guide groove, the multiple sets of vortex grooves are diffused to the outside in a vortex mode, the cooling oil can be sprayed out to the turbofan blades at the inner diameter position in an accelerated mode through the conical liquid outlet holes in the inner wall of the annular guide groove, and therefore the turbofan blades at the lower portion can conduct vortex rotation; the introduced cooling oil can quickly flow from one side of the stator structure to the other side along the coil gap, so that the flow speed of the cooling oil in the inner cavity of the shell can be accelerated from one side of the stator structure, and the cooling and heat exchange efficiency of the compact coil in the stator structure is improved; the turbofan blades and the vortex grooves can enable cooling oil liquid to be diffused in a vortex mode to flow in the same direction with a rotating shaft in the rotor structure, and therefore the situation that the cooling oil liquid is guided into an inner cavity of the machine shell and influences the rotating speed of the rotor structure is avoided.

The present invention relates to the technical field of water distillers, and disclosed are a thermocompression multi-effect water distiller system and a control method therefor. The thermocompression multi-effect water distiller system comprises a distillation unit and a control unit; the distillation unit comprises a multi-effect evaporator; the multi-effect evaporator is a horizontal tube falling film evaporator and has a side-by-side configuration, and the shell pass of a preceding effect evaporator is communicated with the tube pass of a following effect evaporator; the control unit controls the distillation unit during working, and the control unit is a feedforward-cascaded fuzzy PID model predictive control system and comprises an inner-loop control system and an outer-loop control system; the inner-loop control system uses fuzzy PID control, and the inner-loop control system is provided with a control system for fluctuations in industrial steam pressure Psteam; and the outer-loop control system uses model predictive control. In the present invention, by using the thermocompression multi-effect water distiller system and the control method therefor, the heat exchange efficiency is greatly improved; and a novel control system is provided, enabling normal operation within a range of 40-200% of a set operating condition.

The invention provides a multi-stage heat release regulation optimization method and system based on steam extraction energy storage, and relates to the technical field of heat regulation, and the method comprises the steps: building a dynamic thermodynamic model of a heat release process of a steam extraction energy storage system containing a plurality of state variables of heat release power, heat release time, heat release efficiency and temperature change of a heat storage water tank; establishing a multi-objective optimization model by taking minimization of total energy consumption of the system and minimization of entropy production of the heat exchanger as optimization objectives and combining constraint conditions corresponding to the optimization variables; solving the multi-objective optimization model by adopting a hybrid optimization strategy combining an improved non-dominated sorting genetic algorithm and a multi-objective particle swarm optimization algorithm, and determining an optimal regulation strategy set of the multi-stage heat release process of the steam extraction energy storage system; the valve position opening degree of the steam extraction electric adjusting valve and the water supply flow of the steam extraction temperature and pressure reduction device are controlled through the steam extraction energy storage control system, optimized adjustment of steam extraction parameters is achieved, meanwhile, the rotating speed of the cold source side water supply and return pump is controlled, and optimized matching of water supply and return parameters is achieved.

The invention discloses a double-medium thermochemical energy storage system and method. The double-medium thermochemical energy storage system comprises a first regulating valve, a gas storage tank, a thermochemical reactor, a fan, a steam pocket, a water feeding pump and a circulating water pump, the first regulating valve is communicated with an inlet of the gas storage tank through the fan and the electric heater, an outlet of the gas storage tank is communicated with an inlet of a heat exchange tube in the thermochemical reactor, an outlet of the heat exchange tube in the thermochemical reactor is divided into two paths, one path is communicated with an inlet of the fan, and the other path is communicated with a shell side inlet of the steam pocket; a bottom outlet on the shell side of the steam drum is communicated with an inlet of the circulating water pump after being combined with an outlet of the water feeding pump through a pipeline, an outlet of the circulating water pump is communicated with an inlet of a heat exchange pipe in the thermal chemical reactor, a shell side outlet of the thermal chemical reactor is communicated with the pipe side of the steam drum, and a pipe side inlet of the thermal chemical reactor is communicated with a drainage pipe. According to the system and the method, the heat exchange efficiency of the thermochemical reactor can be improved.

The invention discloses an intelligent management and control system and coordination control method for an indirect cooling air cooling island, and belongs to the technical field of intelligent operation and maintenance of equipment, and the method comprises the steps: collecting key operation parameters in real time through building an intelligent sensing network, and calculating a fin heat exchange efficiency attenuation coefficient and a back pressure early warning value; when the attenuation coefficient of the heat exchange efficiency is lower than a threshold value or the back pressure exceeds a limit, a linkage control mechanism of the intelligent cleaning system and the intelligent spraying system is synchronously started; constructing a control effect evaluation matrix based on the back pressure-attenuation coefficient coupling degree, dynamically adjusting the spraying intensity and the number of cleaning times, and switching to a conventional monitoring mode until the parameters return to normal and are continuously stable; according to the method, cooperative intelligent control of cleaning and spraying is creatively achieved, the heat exchange efficiency of the air cooling island is improved through multi-parameter fusion evaluation and a closed loop feedback mechanism, energy consumption is reduced, meanwhile, the self-adaptive anomaly monitoring and quick response capacity is achieved, and an efficient intelligent operation and maintenance solution is provided for a thermal generator set air cooling system.

The embodiment of the invention provides an energy storage peak regulation system and method coupling waste heat recovery and water body heat storage. The system comprises a thermal power generation subsystem, a circulating water waste heat utilization subsystem, a water body heat storage subsystem and a heating subsystem. By recycling waste heat of circulating water, the heat efficiency of the unit can be improved under the same combined heat and power generation capacity, the coal consumption rate is reduced, and energy-saving and carbon-reducing transformation is assisted to be achieved. After the water body heat storage technology is coupled, the system can participate in peak regulation and peak service all the year round, and flexible transformation is assisted to be achieved; the diversified heat supply modes of steam extraction heat supply, circulating water waste heat recovery heat supply and heat storage water body heat supply assist in achieving heat supply transformation. The circulating water waste heat utilization technology and the water heat storage technology are deeply coupled with an existing combined heat and power generation unit, and energy-saving and carbon-reducing transformation, flexible transformation and heat supply transformation of the combined heat and power generation unit can be achieved at the same time.

The invention relates to the field of power equipment intelligent control, and discloses a power equipment maintenance management system and method based on artificial intelligence, and the method comprises the steps: carrying out the multi-source data collection through a sensor, eliminating the noise of the sensor, generating a three-dimensional thermal field model, displaying the temperature gradient between power equipment, and recognizing a high-temperature aggregation region; the heat conduction coefficient and the convection heat dissipation efficiency are corrected in real time by combining environmental parameters to build a model, historical data temperature changes are analyzed, the temperature abnormal condition is analyzed through a temperature threshold value according to the average temperature change and the highest temperature in a period, and the heat dissipation power is adjusted in time; the temperature of the power equipment is predicted based on the temperature change trend of the power equipment, the future heat dissipation efficiency is adjusted, the heat dissipation efficiency is improved to the minimum, the temperature of the power equipment after the heat dissipation efficiency is adjusted is predicted, the actual temperature and the adjusted predicted temperature are analyzed, the deviation is compared, and the formula for adjusting the heat dissipation power is dynamically compensated. And ensuring that the deviation degree and the deviation proportion meet preset standards.

The invention belongs to the field of pollutant control, and particularly discloses a method and system for reducing generation of nitric oxide in the ammonia coal combustion process. The method specifically comprises the steps that liquid ammonia is gasified and then subjected to a thermocatalytic reaction to generate hydrogen and nitrogen, and ammonia-doped mixed gas is obtained; and judging whether the ratio of the concentration of hydrogen to the concentration of ammonia in the ammonia-doped mixed gas is greater than or equal to a threshold value or not, if so, discharging the ammonia-doped mixed gas for blending combustion, and if not, carrying out thermal catalytic reaction on the ammonia-doped mixed gas again. According to the method, the ratio of the concentration of hydrogen to the concentration of ammonia in the ammonia-doped mixed gas serves as the judgment standard for whether blending combustion can be conducted or not, the calculation formula of the threshold value is provided by balancing the influence of H2 and NH3 on NOx generation in the combustion process, then flexible regulation and control can be conducted on the raw material side according to the actual blending combustion condition, and the blending combustion efficiency is improved. The method effectively reduces the generation of nitrogen oxides in the ammonia coal combustion process, does not need to regulate and control the combustion side, does not affect the combustion stability and the boiler thermal efficiency, and has the advantages of simple operation and low cost.

The invention provides a fused salt energy storage system with a seal, and relates to the technical field of energy storage. The fused salt energy storage system comprises a high-temperature storage tank used for storing hot fused salt; the low-temperature storage tank is used for storing the cold molten salt; the nitrogen supply device is used for conveying nitrogen into the high-temperature storage tank and the low-temperature storage tank; the balance pipeline is used for balancing the internal pressure of the high-temperature storage tank and the low-temperature storage tank; a heat exchange working medium flows through the heat exchange device, the hot molten salt stored in the high-temperature storage tank can flow through the heat exchange device and exchange heat with the flowing heat exchange working medium in the heat exchange device, and the hot molten salt becomes cold molten salt after releasing heat and enters the low-temperature storage tank; or the cold fused salt stored in the low-temperature storage tank can flow through the heat exchange device and exchanges heat with the flowing heat exchange working medium in the heat exchange device, and the cold fused salt becomes hot fused salt after absorbing heat and enters the high-temperature storage tank. The fused salt energy storage system solves the problems that in the prior art, ternary salt in fused salt energy storage is prone to oxidation, so that the melting point of fused salt rises, and the heat storage efficiency is reduced.

The invention discloses a gas turbine running state data regression prediction method based on a fusion network, a plurality of sensors are arranged at different positions of a gas turbine, and the prediction method comprises the following steps: obtaining multi-source heterogeneous real-time data of the gas turbine in a current control period, the multi-source heterogeneous real-time data comprises sensor time sequence data, high-frequency vibration data, environment working condition data and control instruction log data, and constructing a unified data representation matrix of the multi-source heterogeneous real-time data; and based on the unified data representation matrix, a thermal efficiency prediction value and an emission concentration prediction value of the gas turbine in the next control period are obtained through a dynamic weight fusion network. By constructing the uniform data representation matrix of the multi-source heterogeneous real-time data and combining the dynamic weight fusion network, the problems of insufficient spatial-temporal characteristic difference processing of the multi-source data and rigid dynamic weight distribution in the prior art are effectively solved.

The invention relates to the technical field of waste heat recovery, in particular to an intelligent waste heat recovery device and method.The intelligent waste heat recovery device comprises a heat exchange box, a heat exchange structure is arranged on the inner side of the heat exchange box, a connecting structure is connected between the heat exchange structure and the heat exchange box, and a positioning structure is arranged on the inner side of the connecting structure; a cleaning structure is arranged on the side face of the heat exchange box, ventilation structures are arranged at the two ends of the heat exchange box, and a sealing structure is arranged on the top side of the heat exchange box. The heat exchange plate can be disassembled and assembled through the heat exchange structure, the sealing performance of liquid flowing in the heat exchange plate can be guaranteed through the connecting structure, meanwhile, the heat exchange plate can be disassembled and assembled conveniently, the fixing state of the heat exchange plate can be controlled through the positioning structure, overhaul and maintenance are convenient, and the surface of the heat exchange plate can be cleaned through the cleaning structure. The heat exchange efficiency of the heat exchange plate is kept, multiple devices can be connected in series for use through the ventilation structure, the use flexibility is improved, and the top side of the heat exchange box can be sealed through the sealing structure.

The present invention relates to the technical field of geothermal systems, and specifically discloses a buried high-efficiency heat exchanger in a medium-deep geothermal well, comprising: an outer sleeve, an inner sleeve coaxially embedded in the outer sleeve, and a heat storage slow-flow unit located at the lower end of the inner sleeve; the heat storage slow-flow unit effectively separates a heat exchange flow channel and a return flow channel through a flow partition to prevent direct mixing of cold and hot fluids and avoid thermal short circuits; the spiral diverter and the slow-flow unit are used for dynamic adjustment to extend the fluid's underground residence time, enhance turbulence intensity, and improve heat exchange efficiency; the kinetic energy of the fluid is used to drive turbine blades and a rotating shaft to drive the diverter and reciprocating parts to move, and dynamic adjustment of the fluid path can be achieved without external energy; the slow-flow structure and the flexible capsule reduce the impact of the fluid on the formation and reduce reservoir disturbance; the closed-loop design avoids the extraction of groundwater and prevents pollution, and the inner sleeve insulation cavity blocks radial heat transfer and reduces heat loss in the return flow channel.