1542 results about "Thermal fluids" patented technology

An aircraft system is provided. The aircraft system includes: a gas turbine engine; a fuel system having a fuel tank and a fuel delivery system fluidly connecting the fuel tank to the gas turbine engine; an electric drive assembly including a component module; and a thermal management system including: a thermal fluid loop; a heat source heat exchanger in thermal communication with the component module and the thermal fluid loop; an airflow heat sink heat exchanger in thermal communication with the thermal fluid loop and further configured to be in thermal communication with a cooling airflow during operation of the gas turbine engine; and a fuel heat sink heat exchanger in selective thermal communication with the thermal fluid loop, the fuel tank, or both, the fuel heat sink heat exchanger in fluid communication with the fuel tank independently of the fuel delivery system during at least a first operating condition.

The invention relates to the technical field of temperature control, in particular to an enzyme reaction kettle self-adaptive temperature control system and method, and the system comprises a temperature detection module, a temperature control module, a heat conduction oil flow control module and an automatic regulation and control module; temperature data of a reaction kettle are collected in real time through a temperature detection module, a temperature control module adjusts parameters based on a PID algorithm and fuzzy logic to generate a control instruction, and a heat conduction oil flow control module adjusts flow by combining double-closed-loop cascade control with a feedforward compensation algorithm, so that thermal inertia lag is shortened. And the automatic regulation and control module generates optimized process parameters based on a reaction kinetic model and a genetic algorithm, and dynamically adjusts a temperature set value. The control method comprises the steps of temperature data acquisition, PID control instruction generation, conduction oil flow coordinated regulation, process parameter optimization and the like. The problems that in the prior art, temperature control precision is insufficient, conduction oil flow control is not accurate enough, and technological parameters cannot be automatically regulated and controlled are solved.

The invention relates to the technical field of hydraulic systems, in particular to a hydraulic and thermal fluid dynamic lubrication calculation model and an optimization method, comprising the following steps: S1, modeling a multi-scale heterogeneous system; s2, carrying out heat-friction-viscosity synergistic effect modeling; and S3, dynamic boundary lubrication and lubricant behavior prediction. According to the method, by integrating nanoscale, mesoscale and macroscopic level lubrication system modeling, physical phenomena on different scales and interaction of the physical phenomena are comprehensively captured, and the step covers multiple aspects of multi-scale heterogeneous system modeling, nanoscale lubrication behavior modeling, macroscopic fluid field and structure field coupling and the like; high-precision predictive capacity and systematic thermal management are achieved by combining multiple physical fields such as heat, friction, viscosity and fluid dynamics, through collaborative modeling of multiple scales and multiple physical fields, the accuracy and stability of a lubricating system are improved, a solid theoretical basis is provided for optimization design, and the method is suitable for popularization and application. And stable operation in high-load and high-temperature environments is ensured.

The invention discloses a laser cladding preparation method for improving the wear resistance of a cladding layer by doping tungsten carbide. According to the method, cladding process parameters are preliminarily obtained based on finite element heat flow analogue simulation, cladding layer preparation is carried out, cladding quality characterization is carried out to obtain the optimal cladding process parameters, and finally the cladding layer with the wear-resistant characteristic is obtained. The method comprises the following steps: firstly, constructing a heat flow coupling three-dimensional model, carrying out grid division, establishing a heat source model, defining thermophysical parameters of tungsten carbide (10-15%) nickel alloy composite powder and a matrix, and determining simulated boundary conditions; setting a multi-factor process parameter combination to carry out numerical simulation calculation, and determining laser processing process parameters of laser power, scanning speed and light spot diameter; preparing a cladding layer on the surface of the nodular cast iron by using tungsten carbide (10-15%) nickel alloy composite powder through a laser cladding method; and carrying out microscopic morphology and microhardness experiments to carry out quality analysis verification on the cladding layer, determining the optimal process parameters of laser power, scanning speed and light spot diameter when the cladding layer has no obvious defect morphology and the hardness is higher than that of the raw material, and obtaining the laser cladding preparation method for improving the wear resistance of the cladding layer by doping tungsten carbide. The invention provides a new research method and a high-quality preparation approach for improving the wear resistance of the cladding layer by tungsten carbide, and can be widely applied to the fields of strengthening and repairing mining machinery, aerospace parts and the like.

The embodiment of the invention provides a heat conduction oil heating temperature control system and method. The system comprises a first detection module, a temperature control module, a circulating pump, a waste heat recovery module, a plurality of segmented heat conduction oil pipelines, heating modules corresponding to the heat conduction oil pipelines and a second detection module. The first detection module sends the environment temperature to the temperature control module; the temperature control module calculates the initial heating power corresponding to each heat-conducting oil pipeline, contains the initial heating power in a heating instruction and sends the heating instruction to the corresponding heating module; the circulating pump drives the heat-conducting oil to each heat-conducting oil pipeline; the heating module heats the heat utilization equipment according to the initial heating power; the second detection module sends the heating temperature of the conduction oil pipeline corresponding to the current time period to the temperature control module; the waste heat recovery module calculates the waste heat utilization rate and sends to the temperature control module; and the temperature control module calculates to-be-adjusted heating power required by the next time period, contains the to-be-adjusted heating power in a heating instruction and sends the heating instruction to the corresponding heating module for subsequent heating temperature control, so that the heating temperature control precision of the heat-conducting oil is improved, and the energy consumption is reduced.

A multi-way valve adapted to control a flow of fluid to different thermal fluid circuits includes a valve housing, a valve flow controller, and a sealing system. The valve flow controller is arranged in the valve housing to control flow through the valve housing. The sealing system is configured to seal between the valve housing and the valve flow controller.

The utility model discloses a magnesium-based solid hydrogen storage device which comprises a tank body, an upper cover, a hydrogen pipe and a heat-conducting oil pipe, the tank body is of an upward opening structure and comprises an outer tank and an inner tank, an oil guide inlet is formed in the top of the outer tank, an oil guide outlet is formed in the bottom of the outer tank, an oil guide channel is formed between the outer tank and the inner tank, and a magnesium-based solid hydrogen storage material is filled in the inner tank; the upper cover covers the tank body; the hydrogen pipe penetrates through the upper cover and is communicated with the inner tank, and a plurality of air holes are formed in the hydrogen pipe; the heat conduction oil pipe penetrates through the upper cover and extends into the inner tank. An oil guide channel and a heat-conducting oil pipe are arranged, heat-conducting oil is continuously added in the hydrogen absorption and desorption process, the internal temperature of the tank body is regulated and controlled, the magnesium-based hydrogen storage material is in a high-temperature environment through internal and external combination, the temperature of the inner tank is kept stable, and the hydrogen absorption and desorption reaction rate is increased; and a plurality of air holes are formed in the surface of the hydrogen pipe, so that hydrogen fully reacts with the magnesium-based hydrogen storage material in each area of the inner tank body, and the hydrogen storage performance is enhanced.

The invention relates to the technical field of solar thermal power generation, and discloses a mirror field and heat absorber cooperative control method and system, and the system comprises a simulation coupling module which determines a light incident angle based on irradiation data and a sun position model, builds a heliostat model in a simulation environment, simulates a three-dimensional thermal fluid, determines a heat absorber model, and controls the heliostat model and the heat absorber model; the control strategy module determines a control strategy according to the heliostat model and the heat absorber model, the control strategy module integrates a plurality of intelligent control algorithms, predicts a future state and adjusts control input based on the models, and the environment simulation module provides a training scene and a fault working condition scene of extreme weather and sets the extreme weather as a plurality of risk levels. The data analysis module collects and stores operation data, the operation state and performance indexes are displayed through a visual interface, control input is adjusted for the actual working condition and the future state on the basis of a dynamic model, and good control stability is achieved.

The invention relates to the technical field of microorganism culture, and discloses a microorganism culture tank device which comprises a culture tank, a concave observation area is arranged in the center of the top of the culture tank, a central culture area surrounding the observation area is arranged in the culture tank, an oil path temperature control area wraps the culture tank, and a double-helix heat conduction oil path is integrated in the oil path temperature control area. Through the cooperation of the uniform distributor and the distributed simulated liquid conveying unit, the gas-liquid proportion and fluid distribution can be accurately regulated and controlled, the physical and chemical conditions in the deep sea or extreme environment are simulated, the constant-temperature precision of + / -0.005 DEG C is realized through the double-helix heat conduction oil way, the low-temperature environment is stably maintained, and the real thermodynamic conditions of deep-sea sediments are simulated; the device meets the sensitive requirements of different microorganisms on temperature, and has the characteristics of high practicability and capability of simulating a dynamic fluid environment of deep sea.

An aircraft system includes an electrified powertrain having a first power module and a second power module. The aircraft system further includes a thermal management system having a thermal fluid loop for conveying a thermal fluid. The first power module and the second power module are in thermal communication with the thermal fluid loop. The thermal management system further includes a heat exchanger in thermal communication with the thermal fluid loop upstream of the first power module and the second power module such that the thermal fluid from the heat exchanger is partitioned between the first power module and the second power module.

The invention discloses a pure electric vehicle heat pump type whole vehicle thermal management system and method, and relates to the technical field of new energy vehicle thermal management, and the method comprises the following steps: constructing a combined twin system of thermal fluid, structural vibration and acoustic fluctuation, collecting pressure waves and vibration phases by using an array sensor, forming a steady state baseline spectrum and a transient state baseline spectrum, and calculating the temperature of the steady state baseline spectrum and the transient state baseline spectrum; and a unified reference is established. According to the method, a combined twinborn system of thermal fluid, structural vibration and acoustic fluctuation is constructed, the dynamic characteristics of pulsating waves are accurately monitored, and instability early warning is carried out by using a phase locking tracking method. Through pipeline topology reconstruction and segmented damping link design, a self-adaptive pulsation buffer zone is introduced, and pulsation energy is effectively absorbed. And in combination with a multi-target control law and a time reflection mirror cooperative regulation strategy, refrigerant flow is accurately controlled, pulsation energy is actively counteracted, and stable operation of the system is guaranteed. Through the innovative design, the stability of a heat management loop is improved, the fault risk caused by pulsation is reduced, and the cooling efficiency and safety are improved.

The invention provides a conduction oil boiler system optimization control method and system based on an adaptive algorithm. The method comprises the steps of data acquisition, data preprocessing, model training, parameter optimization and real-time control. The system comprises a sensor network, a data processing module, a model training module, an optimization calculation module and a control execution module. Boiler operation data are collected in real time through a sensor network, a combustion boiler natural gas dynamic prediction model and a circulating pump efficiency optimization model are constructed after preprocessing, parameters such as the number of boilers, the circulating pump frequency and the oil supply temperature are optimized through an adaptive differential evolution (ADE) algorithm, and finally closed-loop adjustment is achieved through a control execution module. According to the method, the data-driven modeling technology and the self-adaptive optimization capability are utilized, so that system parameters can quickly respond to process demand changes, the heat efficiency is remarkably improved, the energy consumption is reduced, the temperature fluctuation is reduced, the operation and maintenance cost is optimized, and the operation performance and the economical efficiency of the heat conduction oil boiler system are comprehensively improved.

A multi-way valve adapted to control a flow of fluid to different thermal fluid circuits includes a valve housing, a valve flow controller, and sealing systems. The valve flow controller is arranged in the valve housing to control flow through the valve housing. The sealing systems are configured to seal between the valve housing and the valve flow controller.

The invention relates to the technical field of temperature control, in particular to an intelligent solar heat supply temperature management and adjustment system which comprises a thermal distribution modeling module, a thermal equilibrium optimization module, a fluid heat transfer design module, a dynamic layout adjustment module and an environmental factor coupling module. According to the method, through calculation based on solar radiation intensity and heat absorption parameters, a thermal distribution field is accurately established, a dynamic optimization basis is provided, thermal gradient differences are reduced, heat distribution balance is achieved, and through optimization of heat absorption coating covering density and pipeline layout, the heat energy transfer efficiency is improved, and local overheating and energy loss are reduced; pipeline distribution and fluid flow rate optimization are combined with heat transfer oil heat exchange performance, heat transfer efficiency is enhanced, radiation angles and layout parameters are dynamically adjusted, the solar energy absorption rate of the heat collection device is improved, output parameters are adjusted in real time in combination with environment temperature and wind speed, the capacity of the system for adapting to complex climate conditions is improved, and efficient and stable heat energy utilization is achieved.

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

The invention discloses an oil heat conduction emulsification tank based on the Internet of Things, and relates to the technical field of stirring, the oil heat conduction emulsification tank comprises a rotating shaft, blades, hollow adjusting blocks, a heating pipe, a cooling pipe and other assemblies, the flow can be adjusted in a deformable mode through a piezoelectric material, emulsification stirring and accurate temperature control integration is achieved, and unique double-cone through holes in the blades are matched with a partition plate structure; the materials are fully dispersed and mixed in the extrusion-expansion process, so that the emulsification efficiency is remarkably improved; through the hollow design of the rotating shaft and the blades, heat conduction oil or cooling liquid circularly flows along a preset path, the temperature can be rapidly increased and decreased, the temperature can be flexibly controlled in a partitioned mode, the controller has the functions of data collection, the Internet of Things and remote monitoring, temperature information collected by multiple sensors in the tank can be processed in real time and fed back and adjusted, and efficient, energy-saving and intelligent production is achieved.

According to the composite cascade power generation system coupled with the multi-stage different turbines, through coupling of high-pressure supercritical heat absorption and low-pressure subcritical heat absorption of a working medium, a dual-pressure heat absorption organic Rankine cycle is formed, the working efficiency and the heat utilization rate of the system are synchronously improved, and # imgabs0 # loss is reduced; the temperature matching effect of circulation and heat source fluid is effectively improved; according to the system, the design of coupling multi-stage different turbines is adopted in the expansion power generation process, the system can better adapt to the expansion ratio and flow characteristics of a working medium under the same pressure level, higher expansion efficiency can be achieved by conducting cooperative expansion on the turbines at all stages, and therefore efficient gradient utilization of medium-low-temperature heat energy from water, flue gas, heat conduction oil and the like is achieved; and efficient operation of the system can be ensured under all working conditions. On the basis, the invention further provides a composite cascade power generation method executed by using the system.

A method of operating a thermal system implementing a ground-source heat pump includes receiving design parameters associated with a design of the thermal system and receiving one or more measurement inputs associated with a flow of a thermal fluid through a borefield of a ground heat exchanger. The method further includes, based on the measurement inputs and the design parameters, predicting one or more predicted thermal values of the thermal fluid using a forward model. The method further includes predicting one or more predicted borefield parameters of the borefield based on inverting the forward model. The method further includes monitoring the thermal system based on the predicted borefield parameters.

The invention discloses an aluminum alloy flat cable for a new energy automobile, and relates to the technical field of power cables, the aluminum alloy flat cable comprises an aluminum alloy solid conductor, the outer side of the aluminum alloy solid conductor is provided with a composite insulating layer, the composite insulating layer is internally coated with an aerogel thermal insulation layer, the inner side of the aerogel thermal insulation layer is provided with a limiting center groove, and the inner side of the aerogel thermal insulation layer is provided with a limiting groove. A heat conduction silica gel sheet is clamped to the inner side of the limiting center groove, and a center connecting sleeve is connected to the middle of the heat conduction silica gel sheet. Heat in the flat cable is directionally transferred through circulation of heat conduction oil in the flow guide outer pipe and the backflow inner pipe; the flat cable ensures that the interior of the flat cable can be kept in a proper temperature range in the using process, effectively prevents the situation that heat generated in the working process of the flat cable is randomly diffused to cause abnormal temperature rise of peripheral electronic components to affect normal use, and ensures that the flat cable does not affect normal use of an automobile in the using process. And the use safety of the flat cable is effectively improved.

The invention discloses a heat energy cyclic utilization control system and method for a copper-clad plate factory, and relates to the technical field of heat energy cyclic utilization. The heat energy cyclic utilization control system for the copper-clad plate factory comprises a heat energy circulation module, wherein high-temperature waste gas is introduced to perform efficient countercurrent heat exchange with low-temperature high-medium heat-conducting oil; the temperature-pressure dynamic model building module is used for building a temperature-pressure coupling function according to the thermal expansion and phase change characteristics of the medium and building a temperature-pressure dynamic model in combination with the basic equation and the temperature-pressure coupling function; the temperature and pressure coupling optimal control sequence determination module is used for solving an optimal control sequence in a prediction window through a rolling optimization algorithm; and the heat energy utilization module is used for inputting the high-temperature and high-medium heat conduction oil obtained by heating in the heat energy circulation module into a plurality of heat utilization devices according to the optimal control sequence. According to the method, the optimal control sequence in the prediction window is solved through the rolling optimization algorithm to dynamically adjust the operation parameters of the system, and the problem that the heat energy circulation efficiency is reduced in the prior art is solved.

The utility model discloses a pilot plant for producing fulvic acid by a pyrolysis method. The pilot plant comprises a conduction oil boiler, a grinding machine, a reaction kettle, a sleeve cooler, a buffer tank, a circulating cooling tower and a circulating cooling water pump, wherein the heat-conducting oil boiler is circularly connected with the reaction kettle; the grinding machine is sequentially connected with the reaction kettle and the buffer tank; the sleeve cooler is arranged on a pipeline between the reaction kettle and the buffer tank in a sleeving manner; the sleeve cooler is further connected with a circulating cooling tower, a circulating cooling water pump and a buffer tank in sequence; and the buffer tank is also respectively connected with the sleeve cooler and the circulating cooling tower.

The invention relates to the technical field of ocean engineering, and particularly discloses a deep-sea pressure-resistant electric thruster which comprises a thruster body, and the inner wall of the thruster body is rotationally connected with a rotating shaft; through the arrangement of the propeller body, the rotating shaft, the oil bag, the oil guide hole and the oil seal, when the propeller is used, silicon-based heat conduction oil is stored in the oil bag, the rotating shaft and related parts are continuously lubricated through the oil guide hole, the rotating smoothness and the durability of the parts are ensured, the internal pressure is balanced, seawater is prevented from permeating due to the pressure difference, and the service life of the propeller is prolonged. The oil seal prevents leakage of the silicon-based heat conduction oil and infiltration of seawater, the stability of the internal environment of the propeller is guaranteed, the mode of the pressure balancing oil bag is adopted, the inner cavity of the motor is filled with the silicon-based heat conduction oil, and the external pressure oil bag can be adjusted along with the change of water pressure, so that the pressure of the inner cavity of the motor and the external water pressure are kept balanced, and the sealing performance is improved; and water cannot enter the motor inner cavity through the sealing element of the rotating shaft, so that the insulating property of the motor is protected.

The invention discloses a solvent deasphalting extraction tower, which comprises a tower body, which is internally provided with a heating settling section, an extraction section and a deoiled asphalt collection area in sequence from top to bottom; an inner cylinder is arranged in the tower body, an annular space is formed between the inner cylinder and the tower wall, and asphaltene and colloid are separated out from the extracted deasphalted oil solution in the heating settling section and are downwards settled in the annular space; the heat exchange pipe is spiral and is arranged in the annular space, a heat exchange medium used in the heat exchange pipe has the same property as a solvent used for deasphalting in the tower body, and the temperature of the solvent used as the heat exchange medium is higher than that of the solvent used for deasphalting in the tower body. The heat exchange medium is replaced by the heated solvent, so that the heat exchange requirement of the top of the extraction tower can be met, and the problem that the discharged material of the extraction tower carries steam or heat-conducting oil and other existing heat exchange media can be effectively avoided; the heat exchange pipe is arranged in the annular space between the inner cylinder and the tower wall, so that colloid and asphaltene separated out after heat exchange can move downwards from an independent channel, and the solvent-oil ratio per unit volume in the extraction section filler is effectively increased.

The invention belongs to the technical field of marine turbochargers, and discloses a marine turbocharger floating ring bearing rotor system lubrication model construction method, which comprises the following steps: S1, respectively carrying out physical modeling and mathematical modeling according to a real object of a three-blade and half-floating ring bearing of a marine turbocharger, and solving; s2, according to the oil film temperature-viscosity effect, the steady-state heat balance, the power consumption and the flow, a steady-state thermal fluid dynamic lubrication analysis model of the three-blade and semi-floating-ring bearing is constructed, and the static characteristics of the three-blade and semi-floating-ring bearing are obtained; s3, establishing a lubricating and wear characteristic theoretical calculation model in the starting process and the transient variable working condition process after starting, and obtaining the transient film thickness, the transient oil film force and the transient rough bearing force in the starting process; and the transient film thickness and the transient oil film bearing capacity after work starting are obtained. According to the method, a floating ring bearing rotor system lubrication model is constructed, the operation performance and safety of the marine turbocharger are improved, and the service life of the marine turbocharger is prolonged.

The invention belongs to the technical field of thermoplastic composite material forming preparation, and relates to an automatic thermoplastic composite material part laying device and method based on an oil heating mold. The device comprises a forming mold and a high-heat-conduction oil circulating system, a profiling runner network is integrated in the mold, and the runner layout is dynamically adjusted according to the local curvature radius and is combined with a high-temperature stable material to achieve efficient heat conduction. Through the three-stage process of forced circulation heating of high-thermal-conductivity silicone oil, prepreg laying and gradient cooling, and by dynamically adjusting the oil temperature and the flow speed, the fusion interface bonding and non-isothermal crystallization behaviors are synchronously optimized. The problems of large temperature gradient, dynamic response delay, high energy consumption and the like of a traditional heating scheme are solved, high-precision forming of a complex molded surface workpiece is achieved, the comprehensive energy consumption is low, and an efficient equipment foundation is provided for automatic manufacturing of thermoplastic composite materials.

The utility model provides a low-energy-consumption fused salt micro-channel heat exchanger performance testing platform supporting long-time operation. The platform comprises a fused salt loop, a steam loop and a heat conduction oil heat storage loop. Wherein the steam loop can perform primary steam energy recovery, is led out from a steam side outlet of a tested fused salt micro-channel heat exchanger, is sequentially connected with a steam pipeline of the fused salt preheater, a steam pipeline of the steam-water-oil heat exchanger and the steam-water electric heater, and then is connected into a steam side inlet of the tested fused salt micro-channel heat exchanger; wherein the fused salt preheater is connected to a pipeline between a low-temperature fused salt tank and a high-temperature fused salt tank in the fused salt loop, and recycled steam energy is used for heating low-temperature fused salt; the heat conduction oil heat storage loop can conduct secondary energy recovery, and residual steam energy in the steam-water-oil heat exchanger is further recovered into heat conduction oil. According to the test platform, high-temperature steam energy discharged by the test platform can be fully recycled and utilized, and long-time operation of the test platform is realized while energy waste is reduced.

The invention discloses a spiral steam conduction oil heat exchange device. A heat exchange shell comprises an oil inlet cavity, an oil outlet cavity and a heat exchange cavity arranged between the oil inlet cavity and the oil outlet cavity, and the heat exchange cavity is independent of the oil inlet cavity and the oil outlet cavity; the oil inlet cavity and the oil outlet cavity are provided with a heat conduction oil inlet and a heat conduction oil outlet respectively, a steam inlet and a steam outlet are formed in the two ends, in the reverse flow direction of heat conduction oil, of the heat exchange cavity respectively, the threaded heat exchange pipe comprises a heat exchange section located in the heat exchange cavity and an oil inlet section and an oil outlet section which are communicated with the two ends of the heat exchange section, and a spiral groove is formed in the outer surface of the heat exchange section. A spiral protrusion is correspondingly formed on the inner surface of the heat exchange section, the oil inlet section and the oil outlet section extend out of the heat exchange cavity and communicate with the oil inlet cavity and the oil outlet cavity correspondingly, heat transfer is enhanced by disturbing a heat conduction oil boundary layer through the spiral protrusion and the spiral groove, and meanwhile the spiral groove located in the outer surface of the heat exchange section is used for increasing the steam side heat exchange coefficient. Therefore, a traditional boiler system can be replaced, safety is remarkably improved, maintenance cost is reduced, and the service life of heat conduction oil is prolonged.

The invention relates to the technical field of unit gap vibration testing, in particular to a unit gap vibration testing method based on transient numerical simulation, and the method comprises the steps: building a multi-degree-of-freedom dynamic model through obtaining unit structure parameters and operation parameters, carrying out the global optimization of stiffness matrix and damping matrix parameters through employing a genetic algorithm, and generating a high-precision dynamic model; a thermal fluid coupling module is integrated in the model, a coupling weight factor is dynamically corrected in combination with a particle swarm optimization algorithm, a multi-physical-field unsteady-state coupling vibration response equation is generated, and a Pareto optimal solution set is solved in combination with a multi-objective genetic algorithm to optimize gap parameters. According to the invention, real-time evaluation of the vibration state and closed-loop output of fault early warning signals are realized. According to the invention, the problem of insufficient characterization of unsteady state multi-field coupling characteristics in the prior art is solved, and high-precision technical support is provided for online monitoring of rotating machinery.

The invention relates to the technical field of compressed air energy storage, and discloses a compressed air energy storage system compression side heat exchanger optimized operation method which comprises the steps that a compressor model is obtained; acquiring a heat exchanger model; and based on the compressor model and a heat exchanger module, with compressor constraint conditions and heat exchanger constraint conditions, and with the minimum power deviation value of each stage of compressor and the minimum heat conduction oil complementary energy of each stage of heat exchanger as optimization targets, optimization control is conducted on the heat exchanger. According to the scheme, the performance and the parameters of the compressor during working and the performance and the parameters of the heat exchanger during working serve as constraints, the multi-objective optimization problem is constructed, the optimization problem can be solved under the condition that the system safe operation constraints are met by solving the multi-objective optimization problem, and the safety of the system is improved. The dual purposes of compression power tracking and efficient heat conduction oil energy utilization are achieved.

The invention discloses a hydrogen charging system and method for a magnesium-based solid hydrogen storage reaction kettle. A hydrogen storage tank is placed in each placement position in an inner cavity of the reaction kettle, and a heat exchange coil pipe is arranged outside each placement position; the hydrogen charging system comprises a hydrogen charging part, a temperature control part and a safety protection part; the hydrogen filling part comprises a hydrogen filling main pipeline; a hydrogen flow controller and a hydrogen heat exchanger are arranged on the hydrogen filling main pipeline; the temperature control part comprises an external heat-conducting oil circulating system, the external heat-conducting oil circulating system comprises a heat-conducting oil tank, a flow bypass pipeline is arranged between the oil inlet pipeline and the oil return pipeline, and a heat-conducting oil shunting automatic switch valve is arranged on the flow bypass pipeline; the safety protection part comprises a safety valve arranged on the reaction kettle, the safety valve is externally connected with an emptying pipeline, a pressure relief bypass pipeline is arranged between the emptying pipeline and the hydrogen filling main pipeline, and an automatic opening and closing pressure relief valve is arranged on the pressure relief bypass pipeline. The system has the advantages that the hydrogen storage tanks in the reaction kettle can be quickly and efficiently filled with hydrogen, and the safety of the system is ensured.