5324 results about "Cooling Units" patented technology

The invention provides a data center energy efficiency optimization method and system. A data acquisition node is arranged at the inlet end of a cooling unit to obtain refrigerant transportation data, the data are input into a path optimization model constructed based on a physical topological structure of the cooling unit, and a dynamic adjustment coefficient set containing heat exchange efficiency, phase change delay and pressure compensation parameters is generated. Meanwhile, the temperature difference generating capacity is converted into a driving parameter set based on the heat source distribution map by obtaining the surface waste heat of the cooling unit. And in combination with the dynamic adjustment coefficient set and the driving parameter set, the temperature gradient compensation amount, the phase change trigger threshold value and the pressure balance interval are determined, joint optimization is carried out, and a refrigerant flow rate control scheme adapting to machine room environment temperature fluctuation is generated. And energy efficiency optimization of the data center machine room environment is realized based on the refrigerant circulation parameters. According to the technical scheme provided by the invention, the energy efficiency optimization effect of the data center is remarkably improved by optimizing the flow speed control of the refrigerant.

The invention discloses a control method for a cooling circulation system of a multi-core processor, and relates to the technical field of computer hardware heat dissipation, and the control method comprises the following steps: the multi-core processor is responsible for executing a calculation task; the sensor module monitors the temperature of each core; the cooling system control module is used for receiving data from the temperature sensor and the load monitoring module, calculating the cooling requirement of each core according to the data and commanding a cooling unit to adjust; the cooling unit is used for adjusting cooling equipment to reduce the temperature of the processor according to an instruction of the control unit; and the debugging interface is used for monitoring the state of the system and displaying the temperature, the load and the cooling resource distribution condition of each core. The method has the beneficial effects that the rotating speed of the fan, the liquid cooling flow and the working state of the heat pipe system can be accurately controlled by combining the accurate analysis of the load change and the temperature data, the heat dissipation efficiency of the processor is improved, and the energy waste is reduced.

The invention provides a solid target system for simultaneously producing Ge-68 and PET nuclides under a high-power beam, and the system comprises an intermediate-energy cyclotron which is used for transmitting an intermediate-energy high-intensity proton beam; the cascade target is arranged beside the intermediate-energy cyclotron and comprises a shell, and a first aluminum target body, a second aluminum target body, a Ga4Ni alloy capsule target and a metal sealing target which are sequentially arranged along the emission direction of the intermediate-energy high-current proton beam, and the shell is filled with cooling water; the target film is erected between the intermediate energy cyclotron and the first aluminum target body; the helium cooling unit is erected between the target film and the first aluminum target body; and the control unit is used for controlling to start the helium cooling unit and the medium-energy cyclotron, so that the medium-energy high-intensity proton beam sequentially passes through the target film, the first aluminum target body, the shell and the cooling water, then enters the Ga4Ni alloy capsule target to produce Ge-68 nuclide, and then enters the metal sealing target to produce PET nuclide. The method has the beneficial effects that the melting of the target material can be reduced, the probability of direct chemical reaction of molten Ga and Nb is reduced, and the types of nuclide production are increased.

The invention discloses a multistage fire-fighting and intelligent heat management combined system and method for an energy storage system, a battery cluster is provided with a single fire extinguishing nozzle, a composite detector monitors the state of the battery cluster in real time, and when any battery cluster meets a spraying condition, the fire extinguishing nozzle is triggered to spray a fire extinguishing material; the internal state of the energy storage cabin is monitored in real time through a composite detector, and when the interior of the energy storage cabin meets the spraying condition, a spraying nozzle is automatically started to continuously spray for preset spraying time; according to the centralized liquid cooling unit, a dual-redundancy compressor is combined with an ethylene glycol aqueous solution circulating system to conduct dynamic flow regulation and control, the opening degree of an electromagnetic valve of the dual-redundancy compressor is dynamically adjusted through a composite detector, and the internal temperature of an energy storage cabin is controlled; dynamically distributing flow according to the energy storage time period by adopting an intelligent temperature control algorithm; after the multi-stage fire-fighting module acts, the centralized liquid cooling unit is started for cooling; when the temperature detected by the composite detector exceeds a high-temperature threshold value, the fan is started for air replacement, and the multi-stage fire-fighting module is triggered to act.

The utility model discloses a multi-battery pack energy storage system water cooling unit and an energy storage cabinet applied by the same, a plurality of circulating water cooling pipelines connected in parallel are adopted, and each battery pack is correspondingly distributed with one independently controlled circulating water cooling pipeline; a circulating pump, a flow regulating valve, a heater and a heat exchanger are arranged on each circulating water cooling pipeline in series; a water inlet and a water outlet of each circulating water cooling pipeline are respectively butted to the liquid cooling unit of the corresponding battery pack; each battery pack is provided with a temperature sensor, the liquid cooling unit corresponding to each battery pack is provided with a pressure sensor, the water cooling unit further comprises a liquid cooling controller, and the input end of the liquid cooling controller is in communication connection with the temperature sensors and the pressure sensors of all the battery packs and the liquid cooling units. And the output end is in communication connection with the circulating pump, the flow regulating valve and the heater on the circulating water cooling pipeline corresponding to each battery pack. According to the utility model, balanced temperature control among the multiple battery packs of the energy storage system is realized, and the reliability of the whole system is improved.

The invention provides an electronic device. The electronic equipment comprises a back shell, a decoration assembly, a heating device and a piezoelectric air cooling module. The back shell has a first opening. The decoration assembly is provided with a containing groove, a first air inlet and a first air outlet, the containing groove communicates with the first opening to form a containing space, and the first air inlet and the first air outlet communicate with the containing groove; the heating device is arranged in the accommodating space; the piezoelectric air cooling module is arranged in the containing space and corresponds to the heating device, the piezoelectric air cooling module comprises one or more piezoelectric air cooling assemblies, each piezoelectric air cooling assembly comprises one or more piezoelectric air cooling units, each piezoelectric air cooling unit comprises a vibration part and a piezoelectric part, the piezoelectric parts are borne on the vibration parts, and the piezoelectric parts are arranged on the piezoelectric air cooling units. And the piezoelectric piece is used for deforming under the control of the control signal and driving the vibration piece to deform so as to dissipate heat of the heating device. The thickness of the electronic equipment is small.

The invention discloses an energy storage cabinet temperature intelligent adjustment control system, which comprises a battery management system BMS, a liquid cooling unit controller TMS, a liquid cooling unit and an energy storage converter PCS, and is characterized in that the battery management system BMS further comprises a plurality of temperature sensors used for obtaining the battery cell temperature of a battery; the BMS judges that the battery is currently in a charging state, a discharging state or a standby state according to the output power of the PCS; and a corresponding instruction is sent to the liquid cooling unit controller TMS according to the cell temperature collected by the temperature sensor to control the liquid cooling unit to enter a heating mode, a refrigeration mode, a self-circulation mode or a shutdown mode, so that the temperature of the cell is ensured to be in an optimal state, the energy consumption of the energy storage system is reduced, and the energy consumption of the energy storage system is reduced. And the working efficiency and reliability of the energy storage system are improved.

The invention relates to the technical field of liquid cooling, in particular to a distributed full liquid cooling device which comprises a liquid cooling distribution module, a liquid supply main pipe, a liquid return main pipe and a plurality of liquid cooling modules, and the liquid cooling distribution module adjusts the flow speed of low-temperature cooling liquid in the liquid supply main pipe according to the total heating value, so that the overall heat dissipation balance of a system is guaranteed; the cooling liquid inlet flow of each liquid cooling unit is accurately regulated and controlled based on the inlet and outlet liquid temperature difference and the real-time liquid supply mass flow of the liquid cooling units in the liquid cooling module and the real-time reference power of the electronic equipment, so that the heat dissipation requirement of the single liquid cooling module can be met; meanwhile, the liquid cooling distribution module can control the opening state of the jet flow unit according to the surface temperature of the heating element in the electronic equipment, and local enhanced cooling can be conducted on the heating element. According to the distributed full liquid cooling device, accurate control from a global system to a local system is realized through distributed management, and heat dissipation requirements of different levels can be met.

Embodiments of the present disclosure provide a cooling system for electrical equipment. The cooling system includes a rack, a rear-door cooling unit, a liquid-to-air heat exchanger, a fan, a controller, and a power supply unit. The rear-door cooling unit is mounted to the rack, and is pivotable about a first axis between an open position and a closed position. The rear-door cooling unit defines a first side proximate the rack, and a second side opposite the first side. The liquid-to-air heat exchanger is mounted within the rear-door cooling unit. The fan, the controller, and the power supply unit are mounted to the rear-door cooling unit at the second side, and are accessible from the second side when the rear-door cooling unit is in the closed position.

The invention belongs to the field of thermal control and energy conservation of energy storage cabinets, and particularly relates to an intelligent energy-saving control method and system for a liquid-cooled thermal management system of an energy storage cabinet, and the method comprises the steps: obtaining the working state data of the energy storage cabinet and the data of the thermal management system, and introducing an electrothermal conversion model and an energy-saving cooling control model at the same time; secondly, based on the working state data of the energy storage cabinet and an electrothermal conversion model, accurately calculating electrothermal conversion efficiency and a charge-discharge-temperature rise mapping space; thirdly, inputting data of the charging and discharging-heating mapping space and the thermal management system into the energy-saving cooling control model, and generating a first cooperative control parameter and instruction; and finally, parameters and instructions are fed back to a cooperative control device, so that the state change time point and the cooling output power of the liquid cooling unit are accurately controlled, and the boosting rate of the energy storage cabinet is adjusted. According to the method, the accurate time point of cooling is effectively mastered through the accurate mapping space of the heating and cooling processes, the cooling efficiency is improved, and the cooling energy consumption is reduced.

The invention relates to the technical field of injection molding, and discloses a plastic part injection mold regulation and control system and method based on a complex curved surface and a thin-wall structure, and the plastic part injection mold regulation and control system based on the complex curved surface and the thin-wall structure comprises a mold modeling module, a temperature modeling module, a control modeling module, a control optimization module and a control execution module; the plastic part injection mold regulation and control method based on the complex curved surface and the thin-wall structure comprises the steps that a mold three-dimensional model and thermal control area mapping are built, a heat conduction model is built, modal dimensionality reduction is conducted, a target temperature field and a performance function are combined, optimal temperature regulation and control are achieved through a predictive control algorithm, real-time feedback is matched, and a heating and cooling unit is driven. And dynamic closed-loop control of the mold thermal field is realized. According to the method, thermal control precision and energy consumption efficiency are optimized through Galerkin modal dimension reduction, model predictive control and a weighted performance function, global closed-loop temperature control is achieved by combining mapping of a three-dimensional area and a heating and cooling unit of the mold, and system safety and stability are enhanced.

Liquid desiccant air conditioning systems and methods to operate them to achieved desired supply air dry bulb temperature and humidity conditions are described herein. In some embodiments, the liquid desiccant air conditioning systems can include a cooling unit, an absorber, a regenerator, and a control unit. The control unit can be operably coupled to the cooling unit, the absorber, and the regenerator such that the control unit can operate the liquid desiccant system to produce a supply air stream at a relatively independent target temperature and humidity. In some embodiments, the control unit can adjust one or more parameters and / or variables of the components of the liquid desiccant system to produce the supply air stream at a high energy efficiency.

The invention discloses a land energy storage container self-adaptive liquid cooling heat dissipation device and method, the device comprises a liquid cooling unit, a self-adaptive circulation pipeline, a variable flow pump valve group, a distributed temperature sensing module and a BMS main control module, through data monitoring, model establishment, thermal load prediction, selection of a proper cooling mode, and introduction of reasonable compensation, the self-adaptive liquid cooling heat dissipation of the land energy storage container is realized. And the variable-frequency circulating pump and the valve body are adjusted and combined for execution. Through multi-parameter fusion control, dynamic impedance matching and intelligent algorithm optimization, a cooperative control mode of a variable orifice regulating valve and a variable frequency circulating pump is innovatively adopted, and dynamic matching of cooling loop impedance is achieved; through temperature field modeling, heat dissipation demand grading prediction, a cooling parameter self-optimization algorithm and fault self-diagnosis, the balance degree of the temperature field is effectively improved, heat dissipation energy consumption is reduced, environmental adaptability is enhanced, and meanwhile the method has the advantages of being high in reliability, wide in environmental adaptability and low in operation and maintenance cost.

An air treatment system is disclosed which comprises a dehumidification unit (10) comprising a liquid desiccant system comprising liquid desiccant for dehumidifying process air; an indirect evaporative cooling unit (100) for cooling process air from the dehumidification unit and for cooling the liquid desiccant; and a vapour compression unit (200) comprising a compressor (201), a condenser (202) and an evaporator (206) for further cooling process air from the indirect evaporative cooling unit. A preferred desiccant is potassium formate.

The present invention relates to a treatment apparatus using RF energy, a method for controlling same, and a treatment method using same. More particularly, the present invention provides a treatment apparatus using RF energy, a method for controlling same, and a treatment method using same, the treatment apparatus comprising: a handpiece having an electrode configured to contact a skin surface and to transfer RF energy; an RF energy-generating unit for generating RF energy to be transferred to the electrode; a cooling unit provided to cool the electrode; and a control unit for controlling the operations of the RF energy-generating unit and the cooling unit and controlling the cooling unit so as to preliminarily cool the electrode before RF energy is applied to the electrode.

The invention relates to a liquid cooling pipeline and phase change material compounded novel energy storage system and method, which are mainly applied to the field of battery energy storage in an extremely cold environment. The system comprises a liquid cooling unit, a liquid cooling pipeline system, a battery cluster, a phase change module, a multi-stage bypass system, a valve system and a circulating pump. Through cooperative work of the liquid cooling unit and the phase change module, the system can recover the heat of the cooling liquid after the battery is heated and store the heat in the phase change module, and the heat stored in the phase change module is preferentially used for heating when the temperature of the battery is relatively low, so that the energy consumption of the liquid cooling unit is reduced, and the energy efficiency of the system is improved.

The invention discloses an energy storage liquid cooling unit control strategy generation method and device based on working condition prediction, equipment and a storage medium, and relates to the technical field of power grids, and the method comprises the steps: building a prediction model based on working condition data of an energy storage system, determining initial prediction power and predicted battery electric quantity based on a preset coefficient and the working condition data, the prediction model is used for correcting the initial prediction power to obtain target prediction power, the predicted heating power of the battery cell is determined based on the equivalent internal resistance of the battery cell and the voltage of the battery cell, the operation parameters of the liquid cooling unit are fitted based on a preset calibration coefficient to obtain the expected refrigerating capacity, and the predicted temperature of the battery cell is determined; adjusting the initial strategy by using the liquid cooling unit control rule and based on the temperature deviation degree and the temperature change rate to obtain a target energy storage liquid cooling unit control strategy so as to control the energy storage liquid cooling unit; the temperature deviation degree and the temperature change rate are data determined based on the preset battery working temperature range and the battery cell predicted temperature, so that the efficiency of generating the energy storage liquid cooling unit control strategy is improved.

The invention discloses an air cooling unit automatic spraying control system and method capable of reducing backpressure in a segmented mode. The system comprises a data acquisition module, a dirt recognition module, a control module and a spraying module. The data acquisition module is used for acquiring real-time meteorological data and unit operation data, and the unit operation data comprises real-time load data and cooling fin temperature data; the dirt identification module is used for collecting image data of the radiating fins and carrying out dirt identification and positioning on the image data to obtain dirt information; the control module is used for generating a segmented spraying scheme based on the real-time meteorological data, the unit operation data and the dirt information; and the spraying module is used for spraying, cleaning and cooling the cooling fins based on the segmented spraying scheme so as to reduce the back pressure of the air cooling unit. Through regular automatic spraying, cleaning and cooling, the system can effectively reduce the back pressure of the air cooling unit, reduce the energy consumption, improve the operation efficiency of the unit, reduce the requirement for manual cleaning and reduce the maintenance cost.

The embodiment of the invention provides an energy storage heat management system and energy storage equipment, and relates to the technical field of battery energy storage, and the energy storage heat management system comprises a battery cabinet, an electrical cabinet, a liquid cooling unit, an air cooling unit and a control unit. The battery cabinet is provided with at least one first cabin, and the first cabin is used for installing at least one high-voltage box and at least one battery. The electrical cabinet is provided with at least one second cabin, the liquid cooling unit is used for abutting against at least part of the surface of the battery, and the air cooling unit is sequentially communicated with the first cabin and the second cabin to form a first air cooling loop. And when the temperature of the battery is greater than or equal to a first preset temperature, the control unit controls the liquid cooling unit to refrigerate the battery and air passing through the liquid cooling unit, and when the temperature of the high-voltage box is greater than or equal to a second preset temperature, the control unit controls the air cooling unit to sequentially cool the high-voltage box and the second cabin. According to the energy storage heat management system provided by the embodiment of the invention, the energy efficiency utilization rate can be improved.

The invention discloses a thermal management method and device for a liquid cooling energy storage system and electronic equipment, and belongs to the technical field of energy storage systems, and the method comprises the steps: obtaining the temperature value of each single battery in a battery stack corresponding to any liquid cooling unit according to a preset collection period; on the basis of the obtained temperature value of each single battery, when it is determined that the thermal management requirement is met, controlling a BMS management mode to be started; determining a target temperature parameter of the cell stack based on the obtained temperature value of each single cell; determining a target control strategy based on the target temperature parameter of the cell stack and a temperature threshold value corresponding to a preset control strategy; and if the current operation state of any liquid cooling unit meets the execution condition, controlling any liquid cooling unit to execute the target control strategy. And the BMS uniformly controls the liquid cooling unit corresponding to the whole battery stack to execute the target control strategy according to the battery temperature, so that the temperature rise between the battery clusters is consistent, the current between the clusters is consistent, and the performance of the whole energy storage power supply system is improved.

Embodiments of the invention provide a system and method for housing electrical components of a high-density liquid cooling unit to liquid cool electrical components. The system includes a first electrical cabinet housing at least one electrical switch and a controller. The first electrical cabinet is swingable outward to open, and the first electrical cabinet opens while the high density liquid cooling system continues to operate to liquid cool electrical components. The system includes a second electrical cabinet housing a first motor drive and a second motor drive. The second electrical cabinet is accessible when the first electrical cabinet swings outward. One of the first motor drive and the second motor drive are replaceable while the high density liquid cooling unit continues to operate.

The invention discloses an intelligent cooling system for rapidly cooling a casting, and relates to the technical field of casting cooling. An intelligent cooling system for rapidly cooling a casting comprises a geometric perception module, a cooling template module, a cooling execution module, a dynamic regulation and control module, a resource circulation module, a cooling template iteration module and a data precipitation module. According to the method, the geometrical characteristics of the casting are accurately sensed, heat conduction and heat dissipation function modeling are combined, an initial cooling template is established, and the pertinence and scientificity of a cooling strategy are improved; three cooling units of air cooling, spray cooling and liquid cooling are arranged, differentiated regulation and control are carried out based on a heat dissipation distribution diagram of a space partition, and accurate cooling control over multiple areas of a complex casting is achieved.

A liquid cooling method and system for cooling rack-mounted processing assemblies is presented that provides a dry cooling unit, a first liquid distribution circuit to convey the cooling liquid and a second liquid distribution circuit to convey the heated liquid from the rack-mounted processing assemblies, in which each of the rack-mounted data processing assemblies comprises a smart control valve designed to be pressure independent and control the flow rate of the cooling fluid based on detected temperatures and pressure flows. Each of the smart control valves operative to measure current liquid flow rates, current input cooling liquid temperatures, and current output heated liquid temperatures and calculate a current differential temperature, determine a relationship between the current differential temperature and a target temperature value, and dynamically adjust the liquid flow rate of the smart control valve based on the determined relationship and the current liquid flow rate and current input cooling liquid temperature.

The invention belongs to the technical field of electrochemical energy storage, and provides an immersed energy storage system and a thermal management method thereof, the immersed energy storage system comprises a sealed cabin, a battery module, an immersion liquid, a liquid cooling unit, a cooling liquid, a liquid cooling pipeline, a temperature sensor, an electrical device and a thermal management controller; the non-conductive immersion liquid with the conductivity smaller than 10 <-6 > S / m and the flash point larger than 200 DEG C is adopted to completely wrap the battery module, it is ensured that the energy storage battery cells are located in the same temperature physical environment, the temperature consistency of the system is greatly improved, the problem of uneven heat dissipation is fundamentally solved, the service life of the energy storage cabinet is directly prolonged, the immersion liquid has the flame-retardant characteristic, and the service life of the energy storage cabinet is prolonged. Thermal runaway of a battery cell can be effectively restrained, fire and explosion risks are reduced from the source, system operation safety is guaranteed, meanwhile, the type selection standard of cooling liquid is defined, the design of a sealed cabin is optimized, the heat exchange efficiency is improved through a double-circulation branch of a liquid cooling unit, the key bottleneck of an immersed cooling technology in energy storage system integration is thoroughly solved, and the energy storage system integration efficiency is improved. And full landing of technical advantages is realized.

The invention provides a novel data center comprehensive thermal management system and method based on a composite liquid cooling technology. The novel data center comprehensive thermal management system comprises a photovoltaic power generation module, a composite liquid cooling heat dissipation module and a waste heat recovery module. The photovoltaic power generation module is used for providing electric energy for the composite liquid cooling heat dissipation module and the waste heat recovery module; the composite liquid cooling heat dissipation module comprises a cabinet, a micro electrostatic spray cooling unit and a heat exchange module; the micro electrostatic spray cooling unit is used for locally cooling the to-be-cooled element; the heat exchange module comprises a heat exchanger, a first high-voltage electrostatic generator and a guide assembly; the waste heat recovery module is connected with the heat exchanger and used for recovering heat energy in the third cooling liquid after heat exchange, converting the heat energy into electric energy and storing the electric energy into the photovoltaic power generation module. The photovoltaic power generation module, the composite liquid cooling heat dissipation module and the waste heat recovery module are coupled, an immersion type and electrostatic spraying composite cooling technology is adopted, energy efficiency management is optimized, and finally the energy utilization efficiency of the data center is greatly improved.

Disclosed is a single phase liquid immersion cooling system with a forced cooling circuit for cooling heat-generating electronic devices, such as servers. The cooling system comprises an immersion cooling unit, a heat exchanger, and a dielectric fluid circulating unit. The immersion cooling unit includes a tank within which dielectric fluid and heat-generating electronic devices are maintained. The heat-generating electronic devices are provided with a radiator and submerged in the body of dielectric fluid. The dielectric fluid circulating unit includes a fluid outlet pipe interconnecting the heat exchanger with the tank, a motor pump disposed on the fluid outlet pipe, a manifold, a first fluid inlet pipe interconnecting the manifold with the heat exchanger, and a second fluid inlet pipe interconnecting the manifold with the radiator.

The invention relates to a liquid cooling industrial and commercial temperature and humidity control energy storage system and a control method, and the method comprises the steps: collecting electric signals transmitted by a battery control management module, a fire-fighting fan, a liquid cooling unit, an industrial dehumidifier and a visual system based on an energy comprehensive management module; and temperature and humidity control is carried out based on a preset temperature and humidity adjusting strategy according to the electric signal, and the liquid cooling unit is controlled to enter a refrigeration mode, a self-circulation mode and a heating mode by judging the temperature of the battery cell, so that temperature and humidity adjustment is realized. The humidity in the cabinet is controlled through the dew-point temperature, it is guaranteed that no condensate water is generated in the cabinet in the plum rain season, the fire-fighting strong exhaust fan is used for forcibly discharging humidity, the visual system is used for increasing the humidity control means, it is guaranteed that the dew-point temperature in the cabinet is lower than the water outlet temperature of the liquid cooling unit, and through the temperature and humidity joint control adjusting strategy scheme, the temperature and humidity in the cabinet are adjusted. The safety of the battery in the whole life service cycle is ensured to the maximum extent, and thermal runaway and short circuit phenomena are avoided.

A connector part for a charging system for charging an electric vehicle includes: a plug-in portion for plugging connection to a mating connector part; at least one electric plug contact disposed on the plug-in portion so as to transmit a charging current; at least one busbar electrically connected to the at least one plug contact, the at least one busbar being connectable to a load conductor and having a face portion extending flat along a plane; and a cooling unit having a housing disposed on the face portion for conducting a coolant flow, the housing being open at a side facing the face portion, an electrically insulating separating layer being disposed between the housing and the face portion, the face portion being disposed on a first side of the separating layer so as to flow the coolant flow on a second side of the separating layer.

The invention relates to the field of cold end optimization control systems, in particular to a method for reconstructing a wind field of an axial flow fan group of a direct air cooling unit based on a physical information neural network. Comprising the following steps: S1, arranging a plurality of wind speed and pressure sensors near an axial flow fan group of the direct air cooling unit, and collecting sample data when axial flow fans rotate at a high speed by taking wind speeds and pressures in all directions of a wind field of the axial flow fan group of the unit as target variables; s2, performing data preprocessing on the sample data; s3, determining a differential equation of fluid motion satisfied by the axial flow fan group area, and constructing a physical information neural network of the axial flow fan group; s4, training a physical information neural network model of the axial flow fan group by using the preprocessed data obtained in the S2; and S5, reconstructing a wind field of the axial flow fan group of the direct air cooling unit according to the trained physical information neural network model of the axial flow fan group in the step S4. According to the method, the wind field data of the axial flow fan group of the direct air cooling unit is quickly and accurately predicted by using a physical information neural network method.

The invention relates to the technical field of die casting, in particular to a die-casting die for forming aluminum alloy die castings, which comprises an upper die and a lower die, the die further comprises a cooling unit, the cooling unit comprises an upper cooling pipeline arranged in the upper die and a lower cooling pipeline arranged in the lower die, cooling liquid is stored in the upper cooling pipeline and the lower cooling pipeline, a plurality of lifting grooves are formed in the bottom of the upper die in the vertical direction, and an upper die cavity is formed in the lower portion of the upper die. The lifting grooves are evenly distributed around an upper mold cavity of the upper mold, a lifting pipe is movably arranged on the upper portion of the lower mold in the vertical direction, the highest position and the lowest position are arranged on the moving path of the lifting pipe, and communicating sleeves are movably arranged in the lifting grooves in the vertical direction. A communicating hole communicating with the upper cooling pipeline is formed in the side wall of the communicating sleeve in a penetrating mode. According to the cooling device, the uniformity of the aluminum alloy die casting during cooling is guaranteed, and the risk of deformation of the aluminum alloy die casting during die opening is reduced.