6858results about "Heat exchange apparatus" patented technology

The invention discloses a high-performance copper alloy pipe and a preparation method thereof. The Sn, Ni and P elements are compositely added into Cu, the content and proportion of all the elements are regulated and controlled, meanwhile, a recrystallization treatment process is combined, a high-proportion sigma 3, sigma 9 and sigma 27 coincidence lattice grain boundary is introduced, and the copper alloy pipe with high strength, high machining forming capacity and excellent pressure resistance, corrosion resistance and high-temperature softening resistance is prepared. Meanwhile, Zr, Co and B (optionally) elements are added on the basis of the alloy components, so that the performance of the copper alloy pipe is further improved. The tensile strength, the processing formability, the pressure resistance, the corrosion resistance and the high-temperature softening resistance of the copper alloy pipe are far better than those of a TP2 copper pipe of the same specification and an existing high-strength copper pipe, the performance requirements of the high-pressure-resistance thin-wall seamless copper pipe are met, and the copper alloy pipe has wide application prospects in the heat exchange field.

The invention relates to the technical field of system control data processing, in particular to a waste heat recovery heat supply system based on an injection type heat pump, which comprises a multi-source data acquisition module, a genetic algorithm optimization module, a dynamic mode switching module, a thermal stress suppression module and a self-learning updating module. The multi-source data collection module collects industrial waste heat temperature, power grid load and heat supply network backwater flow data through a temperature sensor array and a flow metering device, and feature vectors are extracted through sliding window standardization and principal component analysis. And heat transfer end difference fluctuation is restrained through closed-loop feedback. And the self-learning updating module constructs a multi-parameter incidence matrix to dynamically adjust the weight of a fitness function, and realizes parameter iterative optimization in combination with a historical optimal solution caching mechanism. The problems that the industrial waste heat recovery efficiency is low, thermoelectric coupling adjustment is delayed, and thermal stress of equipment is accumulated are solved.

The invention provides an automatic waste heat recovery method which comprises the steps that waste heat pressure parameters, component media and flow characteristic data are obtained, waste heat data are classified, characteristic vectors of different types of waste heat are obtained, and the characteristic vectors of different types of preheating are stored in a waste heat characteristic database; analyzing and predicting randomness and intermittency rules of waste heat generation and a waste heat concentration area, and dynamically adjusting a cold absorption strategy or a heat absorption strategy; corresponding cold absorption or heat absorption operation parameters are called from the waste heat characteristic database, and cold absorption or heat absorption equipment is controlled to set a self-adaptive adjustment operation state according to the parameters; the cold and heat storage energy in the recovery process is monitored in real time, and the energy loss value of waste heat recovery is analyzed; and constructing a photovoltaic power storage energy optimization scheduling model, solving to obtain an energy distribution strategy, dynamically adjusting a use strategy of cold and heat storage energy, optimizing a distribution proportion and a time sequence of cold and heat energy, and realizing collaborative optimization control of photovoltaic power storage and waste heat recovery.

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 invention discloses a molten salt heat storage and heat exchange efficiency optimization system and method in a whole-plant technological process. The system comprises a high-temperature molten salt storage tank, a low-temperature molten salt storage tank, a temperature sensor group, a variable-frequency pump group, a multi-stage heat exchanger, an intelligent control unit, a heat buffer module and the like, and the high-temperature molten salt storage tank and the low-temperature molten salt storage tank are connected through a conveying pipeline to form a circulation loop. The intelligent control unit regulates and controls the rotating speed of the pump set and the valve opening degree based on a fuzzy PID algorithm, the heat buffering module reduces heat loss, and the multi-stage heat exchanger enhances heat exchange. The method comprises the steps of temperature and flow data collection, efficiency deviation value calculation, fuzzy PID control, thermal buffer optimization, waste heat feedback and the like. Besides, the system also has the functions of digital twinborn prediction, multi-objective optimization, abnormal working condition self-healing and the like, can be connected with a DCS (Distributed Control System) to obtain energy consumption data and dispatch stored energy, and also can predict equipment faults. The fused salt heat energy storage and heat exchange efficiency is effectively improved, reasonable energy allocation and cost control are achieved, and the reliability and stability of the system are enhanced.

The invention discloses a cold station multi-equipment combination energy efficiency optimization method and system, relates to the field of cold station energy efficiency optimization, and aims to solve the problems of low energy efficiency and response lag caused by manual adjustment. The method comprises the following steps: S1, acquiring key operation data (power, state, temperature, flow and frequency) of a water chilling unit, a cooling tower and a water pump and external environment data (temperature and humidity, wind speed and load prediction) in real time; s2, constructing an equipment energy efficiency model based on historical data, and quantifying the change of the equipment efficiency along with the load rate, the temperature difference and the environment temperature; s3, according to the current load and environment prediction, simulating and traversing the energy consumption of the equipment start-stop combination and the water pump frequency combination by applying a Monte Carlo algorithm, and screening a combination strategy with the lowest total energy consumption of the system; s4, converting the optimization strategy into a control instruction, and issuing the control instruction to equipment for execution; and S5, comparing the actual energy consumption with the predicted value, and if the deviation exceeds 5%, correcting model parameters by adopting a least square regression algorithm to realize closed-loop optimization. And the energy efficiency and the response speed of the cold station are obviously improved.

The invention provides a steam extraction energy storage and heat energy storage integrated regulation control method and system, and relates to the technical field, and the method comprises the steps: building a digital twinborn model of a steam extraction energy storage and heat energy storage integrated system, and respectively obtaining corresponding data; establishing a multi-objective optimization model based on the collected data; solving the multi-objective optimization model by using an improved multi-objective differential evolution algorithm in combination with an adaptive variation strategy and a non-dominated sorting mechanism to obtain an optimal adjustment strategy; on the basis of the optimal adjusting strategy, the opening degree of a steam extraction valve of each stage of steam extraction point is adjusted in real time through a distributed control system, and the steam extraction flow is controlled; the inflation power and the deflation power of the compressed air energy storage unit are dynamically adjusted, and meanwhile the charging and discharging power of the flywheel energy storage unit is controlled; the heat charging and discharging rate of the phase change material heat storage unit is adjusted in a self-adaptive mode, and meanwhile the heat charging and discharging flow of the fused salt heat storage unit is controlled.

The present application provides a molten salt heat storage and release unit and a deep peak regulation system for a boiler unit, the molten salt heat storage and release unit comprising a molten salt storage assembly, a heat exchange energy storage assembly, and a heat exchange energy release assembly, wherein the molten salt storage assembly comprises a high-temperature molten salt storage tank and a low-temperature molten salt storage tank; the heat exchange energy storage assembly is connected to the high-temperature molten salt storage tank and the low-temperature molten salt storage tank, and comprises a flue gas heat exchange device and a steam heat exchange device, and molten salt in the low-temperature molten salt storage tank sequentially passes through the flue gas heat exchange device and the steam heat exchange device and then flows into the high-temperature molten salt storage tank; and the heat exchange energy release assembly is connected to the high-temperature molten salt storage tank and the low-temperature molten salt storage tank, and comprises a pulverized coal heating device and a feedwater heating device, and molten salt in the high-temperature molten salt storage tank releases energy through the pulverized coal heating device and / or the feedwater heating device and then flows into the low-temperature molten salt storage tank. The present application provides a molten salt heat storage and release unit and a deep peak regulation system for a boiler unit with flexible peak regulation and high energy efficiency.

The invention discloses a multi-branch middle-deep geothermal well efficient heat exchange system which comprises a main well, a plurality of branch wells and heat exchange pipes extending downwards in the main well in the vertical direction. The main well comprises a first well opening section and a second well opening section, the first well opening section extends downwards from the ground in the vertical direction to be communicated with an upper port of the second well opening section, a lower port of the second well opening section extends downwards in the vertical direction to a geothermal water layer, and an upper port of each branch well is communicated with the second well opening section. The lower port of each branch well obliquely and downwards extends to the geothermal water layer in the direction gradually away from the second opening well section; the vertical distances between the upper ports of the multiple branch wells and the ground are different, and a heat conduction metal stranded wire is arranged in each branch well in the extension direction of the branch well. The medium-deep geothermal well is designed to be of a multi-branch directional well structure, the heat conduction metal stranded wires are arranged in the branch wells in the extension directions of the branch wells, and therefore the geothermal energy taking capacity and the heat transfer efficiency of the stratum far away from the medium-deep geothermal well are greatly improved.

The invention relates to the technical field of fused salt energy storage, and discloses a fused salt heat storage and exchange device and a control method thereof, and the fused salt heat storage and exchange device comprises a storage tank, an input main body, at least one output main body and a power mechanism. The storage tank is used for containing a molten salt medium, and the inlet end of the input body is arranged in a non-edge area between the middle and the top of the storage tank and used for extracting the molten salt medium. The inlet end of each output main body is communicated with the outlet end of the input main body, and the outlet ends of the output main bodies are arranged in the edge area, close to the circumferential side wall, of the bottom of the storage tank, so that at least one medium conveying path extending from the center to the edge is formed. The power mechanism is used for pushing the fused salt medium to flow along the conveying path. The device improves the heat exchange efficiency and reduces the temperature gradient in the storage tank by optimizing the molten salt flowing mode, and is suitable for molten salt heat storage and heat exchange application.

The invention relates to the technical field of industrial control, and discloses a dry-wet combined cooling tower operation state prediction and diagnosis system comprising a load prediction module used for obtaining production plan data and environment information, constructing a basic heat load prediction model, and outputting a total prediction heat load; the thermal modeling module is used for establishing a heat transfer model and an energy consumption model, the heat transfer model outputs cooling amounts in different operation modes, and the energy consumption model outputs total predicted power; the dry-wet decision module is used for constructing a multi-objective optimization function and solving the multi-objective optimization function to obtain a dry-wet switching strategy; and the control execution module is used for executing the dry-wet switching strategy. According to the method, the basic thermal load prediction model is established, so that the prediction precision of the thermal load is improved, and differentiated cooling strategies are provided for different production stages; on the basis of real-time load requirements and environmental conditions, a dry mode or a wet mode is intelligently selected for operation, and a multi-objective optimization function is constructed, so that the balance between cooling requirement meeting and system energy consumption minimization is realized.

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.

A two-phase immersion cooling apparatus may include an immersion tank with a primary condenser in thermal communication with an interior volume of the immersion tank and a vapor management system fluidically connected to the immersion tank. The vapor management system may enable the apparatus to effectively manage periods of high vapor production by removing vapor and other gases from a headspace of the immersion tank, condensing the vapor to liquid, and returning the liquid to the immersion tank.

An adiabatic cooling system including a controller is operable to determine a time period between a first cycle in a recovery mode and a second cycle in the recovery mode. If the time period is less than a first preset time period, then there is a first time lapse before the controller enters the fluid supply mode, and if the time period is greater than a second preset time period, then there is a second time lapse before the controller enters the fluid supply mode, and the first time lapse is greater than the second time lapse.

The invention relates to the technical field of solar thermal power generation and energy storage, in particular to a multi-temperature-zone coupled staged fused salt heat storage system and a control method thereof.The system comprises a multi-stage heat storage module, a multi-stage heat storage module and a multi-stage heat storage module, the multi-stage heat storage module comprises a high-temperature storage tank, a medium-temperature storage tank, a low-temperature storage tank and a buffer storage tank, and the storage tanks are dynamically partitioned through adjustable partition plates; the self-adaptive heat exchange network comprises a plate heat exchanger and a double-pipe heat exchanger which are combined in series-parallel connection, the plate heat exchanger is used for a high-temperature section, the double-pipe heat exchanger is used for a medium-low-temperature section, and an electric three-way valve is arranged between the heat exchangers to automatically switch connection modes according to the temperature of a heat source; and the intelligent control module integrates a temperature gradient sensor and a fused salt flow regulating valve, and optimizes the heat storage priority and the heat release rate in real time. The heat storage density is increased by 20%-30%, and the system circulation efficiency reaches 85% or above; multi-heat-source input and multi-grade heat energy output are supported, and complex working conditions are adapted; and through the modular design, the construction cost is reduced by 30%, and the service life is prolonged to 25 years.

The invention relates to the technical field of thermal equipment operation state dynamic test and compensation control, in particular to an AI-based boiler air pre-heater temperature uniformity regulation and control system, which comprises a collaborative closed-loop control network of a data acquisition module, an AI prediction module, a heat storage system control module, a temperature compensation control module and a thermal stress analysis module. The data acquisition module acquires flue gas temperature, coal quality parameters and load instructions in real time, the flue gas temperature, the coal quality parameters and the load instructions are transmitted to the AI prediction module through an industrial bus, XGBoost, LightGBM and a deep neural network model are used for carrying out spatial-temporal feature extraction on the evolution trend of a temperature field, and the heat storage system control module dynamically switches heat storage and release modes according to the load state. The heat distribution proportion among the multiple units is adjusted by combining the three-dimensional stress field distribution data of the thermal stress analysis module; the bottleneck of lack of thermal inertia regulation of an existing system is broken through, dynamic balance of a temperature field under the condition that thermal stress of a heat transfer element is controllable is achieved, and the heat exchange efficiency and operation stability of the air pre-heater are improved.

The invention provides a steam turbine, a regenerative system and a control method thereof, and the method comprises the steps: collecting data through a multi-mode sensor such as a steam pressure sensor, and constructing a digital twin model containing a thermodynamic equation and equipment aging parameters through the fusion of a space-time alignment algorithm; model deviation is predicted and dynamically calibrated by means of an LSTM network, a near-end strategy optimization algorithm is adopted to solve a Pareto optimal solution of heat recovery efficiency maximization and corrosion rate minimization in a digital twin environment, and a control instruction is generated. And when the corrosion prediction risk exceeds a threshold value, a control strategy is dynamically adjusted, and health-efficiency cooperative control is realized. Meanwhile, the invention further relates to a corresponding collaborative optimization device and corrosion monitoring equipment, and a multi-modal data fusion module is deployed at an edge computing node to realize efficient data processing and analysis. The thermodynamic cycle efficiency of the steam turbine regenerative system is effectively improved, the corrosion risk is reduced, the service life of equipment is prolonged, and remarkable economic and technical benefits are 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 provides a comprehensive early warning control method and device suitable for a steam-fused salt heat storage system. The method comprises the steps that the temperature value of a mixed mother pipe temperature arrangement temperature field of a fused salt side outlet of a steam-fused salt heater is obtained so that fused salt can be guided to a fused salt tank; acquiring a temperature value of a molten salt side outlet temperature arrangement temperature field to trigger an associated protection action; according to the real-time temperature data of the fused salt circulation process temperature field, an electric heat tracing device at the corresponding position is started for preheating and condensation prevention; temperature values of the inner wall of the molten salt tank and a molten salt medium in the molten salt tank are obtained to carry out molten salt tank thermal stress early warning; obtaining the temperature value of the temperature of ceramsite at the bottom of the molten salt tank to judge whether the molten salt leaks or not; and the temperature value of the molten salt tank bottom basic temperature is obtained for ventilation control. Based on temperature monitoring and condition analysis, gradient early warning of the safety working condition of the fused salt side of the steam-fused salt heat storage system is effectively achieved, corresponding protection operation can be correspondingly implemented, and safety and stability of the fused salt system can be effectively prevented and guaranteed.

The invention provides a copper-steel composite heat pipe and a preparation method thereof, and relates to the technical field of heat pipes, the copper-steel composite heat pipe comprises a steel-copper composite pipe, and the steel-copper composite pipe is composed of a copper inner pipe and a steel outer pipe. An internal copper structure is arranged in the steel-copper composite pipe; the internal copper structure is copper powder or a copper wire mesh. The copper powder is unilateral copper powder or bilateral copper powder or ring copper powder; the copper wire mesh is a copper mesh, or a copper mesh and a copper wire capillary, or a copper wire capillary. The steel outer pipe is made of steel 316L, and the copper inner pipe is made of copper C1020. The copper-steel combined material is used, the cost is saved, and it is guaranteed that materials are saved in the whole heat dissipation field. The double-layer combination of the copper inner pipe (C1020, high heat conduction) and the steel outer pipe (316L, corrosion resistance and high strength) is adopted, the efficient heat conduction of copper is utilized, and the environment erosion resistance and mechanical impact resistance of steel are utilized, so that the heat pipe is adaptive to complex working conditions (such as industrial high-temperature, humid or corrosion risk scenes), and the service life of the heat pipe is prolonged.

The invention relates to the technical field of coal gas molten salt heat storage, and discloses a steel mill coal gas molten salt heat storage system and a heat storage operation method and device.According to the coal gas molten salt heat storage system, a coal gas combustion unit adjusts heat power to output flue gas; the high-temperature heat exchange unit and the combustion unit are integrated, and fused salt is heated to the target temperature; the flue gas waste heat exchange unit uses waste heat flue gas flowing out of the high-temperature heat exchange unit as a heat source to heat low-temperature fused salt to medium temperature; the molten salt flow mixing unit realizes high-temperature molten salt flow division backflow and closed-loop circulation; the closed-loop control system dynamically adjusts the backflow proportion and the combustion power based on real-time data to ensure stable and efficient operation of the system, the problems that a blast furnace gas heat source is unstable, temperature rise of molten salt is limited and an existing system lacks dynamic control are solved, safe operation of the system is guaranteed, the service life of equipment is prolonged, and the energy utilization efficiency is further improved. And stable fused salt temperature output and energy efficiency optimization are realized.

The invention discloses a temperature monitoring and adjusting method based on a phase change microcapsule composite cooling liquid, and relates to the technical field of adjusting control, and the method comprises the steps: calculating the equivalent thermal resistance in the operation process in the continuous circulation operation process of the composite cooling liquid, calculating a comprehensive impedance index by using the equivalent thermal resistance in the operation process and the cooling liquid pressure drop in the operation process; based on the comprehensive impedance index and the hot spot area temperature, the cooling liquid circulation flow velocity and the liquid supply temperature are subjected to segmented adjustment operation, and cooling liquid drop after segmented adjustment, turbidity after segmented adjustment, a cooling liquid circulation flow velocity control value and a liquid supply temperature control value are obtained; according to the method, the comprehensive impedance index is calculated, so that the heat exchange performance change and the flow resistance change of the cooling liquid in the current operation state can be quantified in a unified manner, the common phenomena of adjustment overshoot and response hysteresis in a single temperature control strategy are avoided, and the problem that the heat exchange capacity change and the flow resistance change are difficult to cooperatively judge is solved.

The invention discloses a shell-and-tube heat exchanger welding device, and relates to the technical field of heat exchanger machining, the shell-and-tube heat exchanger welding device comprises a support frame and a tube body, a transverse plate is arranged on the side wall of the support frame, a support plate is integrally formed on the upper end face of the transverse plate, a support cylinder is arranged on the side wall of the support plate, a mounting plate is arranged on the inner side of the support plate, and a tube plate is arranged in the mounting plate; a first air cylinder is arranged on the upper end face of the transverse plate, a welding piece is arranged at the bottom end of the transverse plate, an adjusting mechanism is arranged in the supporting plate, the adjusting mechanism is used for adjusting the position of the pipe body, the annular piece and the driving piece are matched to adjust the position of the movable piece, and accurate butt joint of the pipe body and a through hole where the pipe plate is located can be achieved; and accurate welding work of a welding part is conveniently achieved, multiple locking of the pipe body is achieved through the locking mechanism and the positioning mechanism, and the stability of the device during welding is further improved.

The present application discloses a welding gun for U-shaped dense tubes, which relates to the field of welding equipment, and includes a fuselage and a machine head. The machine head is arranged at one end of the fuselage, and a receiving cavity is formed in the machine head. The receiving cavity is arranged at an end away from the fuselage, and the U-shaped tube and two straight tubes connected to the U-shaped tube extend from the open end of the receiving cavity into the receiving cavity of the machine head, and the end wall of the machine head away from the fuselage abuts against the outer wall of the heat exchanger chassis, and a welding mechanism is arranged on one side of the machine head located in the receiving cavity, and the welding mechanism welds the plug-in joint of the U-shaped tube and the straight tube. The present application uses the fuselage to drive the machine head to move, and the machine head is arranged on a U-shaped tube and two straight tubes through the receiving cavity cover, so as to weld the plug-in joint of the U-shaped tube and a straight tube, thereby facilitating the welding of the dense tube bundle of the heat exchanger.

The invention discloses an efficient gradient utilization medium and low temperature flue gas waste heat recovery system and method, and relates to the technical field of waste heat recovery. When the contact time between the medium and low temperature flue gas and a heat medium is short and the heat conduction contact area is small, the heat transferred to the heat medium by the medium and low temperature flue gas is small, the waste heat recovery amount is small, and the recovery effect is affected. The arc-shaped recess in the center of the inner side of the heat medium bin is matched with the smoke exhaust mechanism, the contact area between the inner side of the heat medium bin and smoke is increased through the recess, the smoke exhaust mechanism limits smoke exhaust, the contact area between the smoke and the heat medium bin is increased, and meanwhile the contact time between the smoke and the heat medium bin is prolonged; the heat of medium and low temperature flue gas is more effectively transferred to the heat medium in the heat medium bin, and the situation that the flue gas and the heat medium bin are small in contact area and short in retention time, heat is not completely transferred and discharged, and the waste heat recycling rate is low is avoided.

The invention relates to the technical field of heat exchangers, and particularly discloses an efficient heat transfer device of a heat exchanger for a geothermal source heat pump, which comprises a heat exchanger shell, a water tank and a buried pipe, end covers are installed at the two ends of the heat exchanger shell, and heat exchange pipes are arranged in the heat exchanger shell. A cold source water inlet pipe and a cold source water outlet pipe are arranged on the outer wall of the heat exchanger shell; the water tank is arranged outside the heat exchanger shell; the buried pipe is buried in soil; a heat source water inlet pipe communicated with the buried pipe is arranged on the end cover at one end of the heat exchanger shell, and a heat source water outlet pipe communicated with the water tank is arranged on the outer wall of the end cover at the other end; a water conveying mechanism is further arranged outside the heat exchanger shell. A descaling mechanism is arranged in the heat exchanger shell; in the long-time working process of the heat exchange pipe, the outer wall of the heat exchange pipe is cleaned through the descaling mechanism, water scales on the outer wall of the heat exchange pipe are scraped off, and the heat exchange efficiency is improved.

According to the high-low-temperature double-tank photovoltaic abandoned electricity coupling binary fused salt heat storage and exchange system and the operation method thereof, binary fused salt heat storage is adopted, light condensation heat storage and power generation load dynamic decoupling are achieved through independent heat storage of a cold salt tank and a hot salt tank and two-stage fused salt path control, and the power generation stability is improved. According to the system, photovoltaic abandoned electricity is utilized to drive a 25MW fused salt electric heater, fused salt is heated from 290 DEG C + / -10 DEG C to 550 DEG C + / -10 DEG C, the energy storage efficiency is larger than or equal to 93%, and the abandoned electricity is effectively absorbed. An intelligent salt dredging system is arranged, gravity self-flowing and compressed air assistance are combined, the emptying rate within 30 minutes + / -2 minutes reaches 99.5% + / -0.3%, and the risk of molten salt residue is reduced. The annular distribution pipe and the variable frequency pump are cooperatively controlled, so that the temperature stratification of the hot salt tank is less than or equal to 3 DEG C + / -0.5 DEG C, and the heat efficiency is improved by 8-12%. And the anti-condensation energy consumption of the storage tank is controlled to be smaller than or equal to 15 MWh / day through circulating anti-condensation of the MI heat tracing cable and the temperature adjusting pump, and the advantages of efficient heat storage, flexible peak regulation, high reliability and the like are achieved.

The invention provides a radiator bending process quality control method, and belongs to the technical field of bending process.The radiator bending device comprises a frame body, a power mechanism, a bending mechanism and a control system.The power mechanism is provided with a pressure sensor for monitoring bending force in real time; the method comprises the following steps: establishing a relational expression between bending force and bending time, bending speed, process parameters of a bending device and performance parameters of a to-be-bent plate when bending equipment stably operates and has no fault; and the control system dynamically analyzes the actual bending force and the actual bending time monitored in real time in each bending process and regulates and controls the bending force according to the analysis result until the design requirements are met, so that the intelligence of equipment is improved, and the bending quality of products is ensured.

The invention belongs to the technical field of intelligent heat supply, and provides a green power consumption heat storage and release matching control method and system based on a water heat storage boiler, and the method comprises the steps: firstly obtaining a heat load prediction sequence and an electric power spot market price prediction sequence of a heat supply system; secondly, regarding the heat supply network as a graph structure composed of nodes and pipelines, and establishing a pipe network dynamic model for describing the hydraulic and thermal characteristics of the heat supply pipe network; and finally, with the purpose of minimizing the comprehensive operation cost of the heat supply system in the whole scheduling period, and with the whole network heat balance, heat source operation, centralized heat storage device operation, heat supply network safety and user comfort as constraint conditions, solving to obtain a source network load storage cooperative control strategy. The purpose of integrated collaborative optimization of the heat source, the energy storage, the pipe network and the load is achieved, a scheduling strategy with better economical efficiency can be generated, and the problems that the absorption capacity is insufficient, and the overall operation economical efficiency of the system is not high are solved.

The invention relates to a chemical looping combustion device of a coupling heat exchanger and a using method of the chemical looping combustion device. The chemical looping combustion device comprises an air reactor and a fuel reactor. The air reactor is provided with a top discharge port, and the fuel reactor is provided with a lower overflow port; the chemical looping combustion device further comprises a return feeder with an inlet and a first outlet, the inlet is communicated with the overflow port, and the first outlet is communicated with the air reactor through the fluidized bed heat exchanger. According to the chemical looping combustion device, flexible control over the temperature of the air reactor is achieved by conveniently and flexibly controlling the amount of materials entering the fluidized bed heat exchanger. According to the chemical looping combustion device, by arranging the fluidized bed heat exchanger, heat in the chemical looping combustion device is safely and effectively recycled, and the problems that a conventional heating surface arranged in an air reactor is prone to abrasion, and the efficiency of a wear-resistant heating surface is low are solved.