5724 results about "Cooling efficiency" patented technology

The invention relates to the technical field of temperature regulation and control, in particular to a liquid cooling control method and system of a battery control device, in the liquid cooling control method and system, through real-time collection and area screening of temperature and power data, accurate recognition of a high-temperature area is achieved, a clear cooling requirement partition is provided, and the cooling requirement of a battery is met. A dynamic adjustment strategy of pressure and flow parameters of the liquid cooling pump is optimized through a genetic algorithm, the cooling response speed and control precision are improved while energy consumption and cooling efficiency are effectively balanced, the pump speed and the valve opening degree are adjusted in real time, temperature changes are rapidly responded through automatic control, gradual implementation of a cooling target is ensured, and the cooling efficiency is improved. The hysteresis in the heat management process is reduced, the temperature control effect is continuously evaluated through a fuzzy control algorithm, the cooling intensity is dynamically adjusted according to the monitoring result, efficient cooling is ensured, meanwhile, equalization of temperature distribution is achieved, and a systematic heat management framework is established through long-term data monitoring and continuous optimization of cooling operation. And efficient and stable operation of temperature management is realized.

The invention discloses an aircraft wheel cooling method and device, and the method comprises the steps: collecting the temperature of a brake disc and the air pressure of a hub in real time through a temperature and pressure sensor, calculating the temperature change rate and the pressure difference through an embedded processing module, and generating a thermodynamic initial parameter set; calculating a thermal stress distribution value of the brake disc based on the initial parameter set, and generating a cooling liquid flow and spraying angle instruction set in combination with a material threshold database; the opening degree of an annular pipeline piezoelectric valve is regulated according to an instruction set, an injection area is regulated according to flow velocity-surface area heat exchange efficiency, and waste heat is synchronously recovered to optimize power consumption; the thermal infrared imager obtains temperature field distribution, the initial parameter tolerance range is compared, the spraying angle and the flow instruction are corrected through a fuzzy PID algorithm, and temperature gradient errors are eliminated; and based on the temperature drop rate, the pressure stability and the waste heat recovery efficiency, an efficiency index is generated by using a neural network scoring model, and algorithm weights and piezoelectric valve response parameters are dynamically adjusted. The cooling efficiency is effectively improved, and the thermal stress risk is reduced.

The technical scheme of the invention relates to the technical field of data processing, in particular to a method for improving the rapid cooling efficiency of a high-temperature graphite furnace, and the method comprises the steps: carrying out the time axis normalization processing based on a cubic spline interpolation algorithm, combining an adaptive Kalman filter, fusing multi-source data, and generating a time-synchronized three-dimensional temperature field reconstruction matrix; the problem of temperature field reconstruction lag caused by insufficient time sequence alignment precision of multi-modal sensing data is solved. And the reinforcement learning network dynamically optimizes the control parameter weight through the residual feature map, preferentially corrects the deviation of the rotating speed of the induced draft fan and the gas injection angle in a high-error region, and feeds back the deviation to the thermodynamic simulation model for online iterative updating of the specific heat capacity parameters of the material, so that model prediction and dynamic calibration of the actually measured thermal field are realized. Through multi-source data alignment, closed-loop feedback and cooperative control architecture, the timeliness and execution precision of cooling path planning are remarkably improved, and the cooling efficiency and equipment reliability of the high-temperature graphite furnace are optimized.

The invention relates to the technical field of direct-current transformers, in particular to a direct-current transformer for a power distribution network, which comprises an iron core, a coil and insulating oil, an insulating assembly is arranged between the coil and the iron core, and the insulating assembly comprises an insulating paperboard, an insulating cushion block, an insulating contour semi-ring and a semi-ring groove, the insulating paper board is of a structure with a round inner wall and an octagonal outer wall. Through the unique design of the insulating paperboards, the insulating partition strips and the insulating partition blocks, the longitudinal oil ducts and the transverse oil ducts are effectively reserved, the oil flow path of the transformer is optimized, the cooling efficiency is improved, and stable operation of the transformer is ensured; through the bisection splicing structure of the insulating cardboard and the overturning action of the insulating parting strip, the quick clamping assembly of the insulating cardboard and the iron core is realized, the time for adapting the winding on site is saved, the tightness and uniformity of the winding are improved, and the reliability and safety of the transformer are enhanced.

The invention relates to the technical field of automatic control, in particular to an automatic control method of a BOG low-temperature recovery system for a storage tank for an LNG (liquefied natural gas) ship, which comprises the following steps: acquiring BOG pressure fluctuation data and temperature difference trend, analyzing pressure rise rate and cooling efficiency change, identifying a pressure peak value and a cooling lag section, screening a low-efficiency section and marking an optimization unit. And identifying an energy matching degree, analyzing energy loss distribution, identifying an over-limit node and a fault signal, and obtaining an energy and fault synchronous control table. According to the system, through real-time data monitoring and intelligent analysis, the BOG recovery process can be accurately controlled, energy circulation and cooling treatment can be optimized, the efficiency of a low-temperature recovery system can be improved, BOG pressure and temperature difference changes can be monitored, pressure fluctuation and cooling lag can be analyzed, continuous improvement of condensation efficiency can be ensured, control parameters can be accurately adjusted, energy loss is avoided, and the energy efficiency of equipment can be improved; energy consumption and equipment fault management are optimized, and efficient and safe operation of the low-temperature recovery system is ensured.

The invention relates to the technical field of liquid cooling energy storage control, in particular to an efficient liquid cooling energy storage system and a control method thereof, and the system comprises a path monitoring module, a path recognition module, an abnormality marking module, a switching execution module and a path reinspection module. According to the method, through combined calculation of the main channel pressure change rate and the outlet pressure deviation value, early recognition of the cooling efficiency attenuation trend is achieved, the channel abnormity sensing precision is improved, the temperature recovery rate is introduced to serve as a heat release accumulation criterion, the dynamic judgment capacity for heat retention is enhanced, and the cooling efficiency is improved through a double abnormity parallel judgment mode. Misjudgment is avoided, early warning accuracy is improved, main and standby channel switching is implemented, an independent cooling path structure is formed, pressure and temperature fluctuation is dynamically rechecked after a standby path is started, stable switching is ensured, the continuous monitoring capacity is achieved, and a parameter trend recognition, path reconstruction and state verification closed-loop mechanism is integrally constructed. And the operation stability and the thermal control reliability of the energy storage system are improved.

The invention relates to the technical field of liquid cooling heat dissipation, in particular to a liquid cooling fin type heat dissipation structure for a processor and a manufacturing method.The liquid cooling fin type heat dissipation structure comprises a composite fin unit, a nano-porous thermal interface layer and a double-phase cooling runner, and the composite fin unit is composed of a plurality of heat dissipation fins; the heat dissipation fins are made of a silicon carbide particle reinforced copper-based double-gradient nano-structure composite material; the nano-porous thermal interface layer is arranged on the outer surface of the heat dissipation fins; the double-phase cooling flow channel is arranged in the heat dissipation fins and comprises a main cooling channel, a micro-jet branch pipe and a spiral fractal flow channel. According to the double-phase cooling flow channel, the main cooling channel, the micro-jet branch pipes and the spiral fractal flow channel are matched with one another, the main cooling channel extends in the length direction of the fins, it is ensured that cooling liquid can evenly flow in the fins, the contact area of the cooling liquid and the fins is increased, and the cooling efficiency is improved.

The invention provides an air-cooling and water-cooling integrated dry-type transformer, and relates to the field of transformers. The air-cooling and water-cooling integrated dry-type transformer comprises a transformer body, an annular gap is reserved between a primary winding insulating layer and a secondary winding insulating layer of the transformer body, a cooling pipeline is installed in the annular gap, a liquid inlet channel and a liquid outlet channel are arranged in the cooling pipeline, and the section of the cooling pipeline is in an 8 shape; according to the air-cooling and water-cooling integrated dry-type transformer, air cooling and water cooling are cooperatively used for heat dissipation, the heat dissipation efficiency is improved, the 8-shaped cooling pipeline is arranged, cooling liquid circularly absorbs heat of the winding through the liquid inlet channel and the liquid outlet channel, the spiral design increases the contact area and duration, the air cooling channel conducts double air cooling on the surface of the winding and the surface of the cooling liquid pipeline through the air spraying holes, and the cooling efficiency is improved. And the splayed structure of the gas spraying holes promotes gas-liquid heat exchange, the synergistic effect of assisting water cooling with air cooling and promoting air cooling with water cooling is formed, and the heat dissipation efficiency is greatly improved.

Disclosed in the present invention is a heat dissipation structure integrating a heat dissipation plate and a phase change heat transfer device, comprising a heat dissipation plate and a vapor chamber. The heat dissipation plate is provided with a flow channel allowing for flowing of a dielectric material, an inlet allowing for flowing of the dielectric material into the flow channel, and an outlet allowing for flowing of the dielectric material from the flow channel. In addition, the upper end surface of the heat dissipation plate is further provided with an opening, and the vapor chamber is blocked on the opening in the upper end surface of the heat dissipation plate to directly perform contact heat transfer with the dielectric material in the heat dissipation plate. The present invention can efficiently solve the problem of insufficient heat exchange efficiency between the vapor chamber and a cooling medium material during composite heat dissipation of the vapor chamber and the heat dissipation plate, and effectively improve the cooling efficiency of the composite heat dissipation mode of the vapor chamber and the heat dissipation plate. Since the vapor chamber has high structural requirements, there is no need to make significant modifications to components, and in the present application, there is no need to change the internal structure of the vapor chamber, thereby making the production and processing easier to implement.

The invention belongs to the technical field of crossing of intelligent manufacturing and thermal control systems, particularly relates to an intelligent cooling control system for a bionic micro-channel mold, and aims to solve the problems of low mold cooling efficiency, non-uniform temperature distribution, high energy consumption and the like. The system comprises a bionic microchannel mold body, a distributed temperature sensing network, a multi-area independent flow regulation and control module, a cooling medium dynamic supply unit and a central intelligent decision controller. Through cooperation of a bionic fractal micro-channel structure, partition flow regulation and control and an intelligent algorithm, fine regulation and control of a temperature field are achieved, the cooling efficiency is improved, energy consumption is reduced, and the self-adaptive optimization and fault redundancy capacity is achieved.

The invention relates to the technical field of vapor-liquid two-phase cooling, and discloses a vapor-liquid two-phase cooling method and system based on phase change immersion. The method comprises the following steps: acquiring a multi-modal monitoring data set of a target cooling system; performing spatial gradient feature extraction, transient response analysis and motion mode analysis processing on the data to obtain a temperature field feature matrix, a thermal load fluctuation vector and a bubble dynamics feature sequence; performing multi-physical field coupling processing on the features to generate a fusion cooling state feature set; a pre-configured multi-phase flow simulation model is called to carry out cooling efficiency evaluation, and a cooling efficiency index set containing the correlation mapping relation between the working medium flow characteristics and the heat exchange efficiency is generated; performing collaborative anomaly traceability processing based on the mapping relationship, and generating a phase change anomaly traceability report for identifying an abnormal boiling region and a working medium flow defect mode; and generating a cooling parameter self-adaptive control strategy according to the traceability report, and sending the cooling parameter self-adaptive control strategy to a cooling control system to execute real-time parameter adjustment.

The invention discloses a direct current charging pile, and relates to the technical field of charging. According to the scheme, the fixed plate, the movable plate and the movable heat dissipation piece which are matched with each other are arranged on the ventilation windows on the two sides of the cabinet body; when the dust concentration of outdoor air is relatively low, the flow channel between the fixed plate and the movable plate is opened for air-cooling heat dissipation of the environment in the cabinet body; when the dust concentration of outdoor air is high, the flow channel between the fixed plate and the movable plate is closed, and the heat dissipation piece moves to the position in contact with the fixed plate, so that heat conduction and heat dissipation of the environment in the cabinet body are realized; the situation that when the environment in the cabinet body is cooled in windy weather, a large amount of dust easily enters the cabinet body, so that the heat dissipation efficiency and the use stability are reduced is avoided; in addition, a negative pressure cavity, a capillary core, a coolant and the like are arranged in the fixing plate, so that the cooling efficiency during heat conduction and heat dissipation is further improved, dust in the external environment in strong wind weather is prevented from invading, and efficient cooling is ensured.

The invention belongs to the technical field of motors, and relates to a vertical magnetic suspension motor. On the basis of the magnetic bearing control module, the cooling control module and the control evaluation module, closed-loop control of the rotor stably suspending at the target position is achieved, oscillation and steady-state errors are reduced, and the control precision is effectively improved; by dynamically calculating the temperature gradient difference and the cooling power regulation and control value and combining the PID controller and the liquid cooling / air cooling cooperation strategy, on-demand cooling is achieved, the cooling energy consumption is reduced, the temperature balance is improved, and the problems of local overheating or too high energy consumption are avoided; by performing normalized weighted analysis on key parameters such as magnetic bearing energy efficiency and cooling efficiency, feeding back control evaluation coefficients in real time and guiding system parameter optimization, the stability and reliability of long-term operation of the motor are ensured, the failure rate of the motor is reduced, the functional integrity is ensured, and system-level optimization is facilitated.

The invention relates to the technical field of electric vehicle thermal management, discloses an electric vehicle motor and driver integrated intelligent cooling system and a control method, and aims at solving the problems that an existing motor driver thermal management system is low in cooling efficiency, high in energy consumption, complex and insufficient in space utilization rate. The method comprises the following steps: acquiring operation, thermal state and environment data; constructing a collaborative thermal model and predicting a thermal load; generating an optimal cooling strategy based on the predicted value and the target; the cooling liquid pump, the three-way valve and the cooling fan are adjusted, and cooling resources are dynamically distributed to achieve collaborative cooling. The system comprises a data acquisition module, a collaborative thermal model construction prediction module, an intelligent decision control module and an integrated cooling circulation execution module. By the adoption of the technical scheme, the cooling performance can be effectively improved, system energy consumption and complexity are reduced, space layout is optimized, the service life of parts is prolonged, and the reliability, the power performance and the endurance of the whole vehicle are improved.

The invention discloses an intelligent control method and system for a deep water cooling system of a reservoir in a data center, and relates to the technical field of cooling control, and the method comprises the steps: analyzing the cooling demand distribution of the data center, constructing a demand database, constructing a water source monitoring database in combination with the temperature, the water layer depth and the water quality monitoring data of the reservoir, and storing the water source monitoring database; the method comprises the following steps: decomposing a water taking treatment process and a cooling treatment process, extracting and fitting a relationship between control parameters and a treatment effect and energy consumption, searching optimal control parameters according to cooling demand data and a process flow, and generating cooling system control information. The technical problems that an existing data center cooling system cannot be dynamically adjusted according to real-time environment changes and water source conditions, so that the cooling effect is unbalanced, and energy is wasted are solved, the control parameters are dynamically optimized through an intelligent control method in combination with the real-time cooling requirement and water source monitoring data, and the cooling efficiency is improved. The technical effects of precise cooling and energy consumption reduction are achieved.

The invention provides a motor cooling structure, a motor and a vehicle, and relates to the technical field of vehicle parts, the motor cooling structure comprises a stator winding, a stator core, a first oil ring, a second oil ring and a shell; a first oil cavity is defined by the first oil ring, the shell and the stator iron core, a second oil cavity is defined by the second oil ring, the shell and the stator iron core, the first oil spraying hole and the second oil spraying hole are communicated with the first oil cavity and the second oil cavity respectively, and the oil inlet hole is communicated with the first oil cavity. The stator iron core is provided with a first cooling channel, a second cooling channel and a third cooling channel, the two opposite ends of the first cooling channel are communicated with the first oil cavity and the second oil cavity respectively, and the two opposite ends of the third cooling channel face the two axial ends of the stator winding respectively. The two opposite ends of the second cooling channel communicate with the middle position of the first cooling channel and the middle position of the third cooling channel correspondingly. Therefore, the stator winding and the stator iron core can be cooled in multiple directions, and the cooling efficiency and the cooling effect of the motor stator are improved.

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 discloses a cooling tower operation state monitoring method and system based on big data analysis, and relates to the technical field of data processing, and the method comprises the steps: obtaining water temperature data of an inlet and an outlet of a cooling tower, calculating a cooling temperature difference, and carrying out the cooling efficiency evaluation based on a time sequence temperature relation; analyzing the relationship between the control parameters of each level of the cooling tower in combination with historical operation data and a field big data sample, and establishing a level control analysis path; and on the basis of the cooling target of the heat source equipment, analyzing control parameters of each level through the time sequence cooling efficiency, identifying the running state of the cooling tower, and sending state feedback information. The technical problems that existing cooling tower operation state monitoring depends on simple static measurement, dynamic optimization and real-time adjustment of control parameters of all levels are lacked, and the operation efficiency of the cooling tower is affected are solved, and the purposes that the control parameters are dynamically optimized in real time through big data analysis and multi-level control analysis, and the operation efficiency of the cooling tower is improved are achieved. And the operation efficiency of the cooling tower is improved.

A cooling apparatus, comprising a mainboard and a cooling fan, where the novel cooling apparatus comprises: a heat sink, provided on the mainboard and affixed to one end of a vent of the cooling fan. The heat sink comprises: a groove, used for accommodating a heat-generating component provided on the mainboard; cooling fins, distributed within the heat sink and arranged on two sides of the groove. A venting and cooling channel is constituted between the interior of the heat sink and the vent of the cooling fan. The beneficial effect of the technical solution is such that, with other heat-generating components placed in the heat sink, the space in the heat sink is fully utilized, the fan is utilized to cool the heat sink and the heat-generating components therein, thus increasing the utilization rate of the fan, increasing the cooling efficiency, and effectively utilizing space.

The invention provides a cooling device for semiconductor manufacturing, which is characterized in that a choke plate divides a cooling cavity into a first cavity and a second cavity, and the first cavity and the second cavity are respectively communicated with an air inlet and an air outlet; the return assembly is arranged on the shell and connected with the choke plate, and the return assembly is used for providing reset driving force for the choke plate in the first direction; an air flow channel for air circulation is formed between the choke plate and the liquid level of cooling liquid in the cooling cavity, the first cavity and the second cavity are communicated through the air flow channel, and when the air inlet pressure of the air inlet is increased, air flow pushes the choke plate to move towards one side of the second cavity so as to increase the size of the first cavity; and when the air inlet pressure is reduced, the return assembly drives the choke plate to reset towards one side of the first cavity. According to the cooling device for semiconductor manufacturing, the problems that in the prior art, due to fluctuation of the liquid level of cooling liquid, the cooling efficiency is reduced, and the gas-liquid separation effect is poor are solved.

The invention provides a two-phase refrigerator control system and method applied to electrochemical energy storage, the system comprises a two-phase refrigerator, a sensor and a controller, the two-phase refrigerator is composed of a cooling circulation pipeline, a refrigeration circulation pipeline, a plate heat exchanger and a liquid storage tank, the sensor is used for monitoring temperature and pressure, and the controller is used for controlling the temperature and the pressure. The controller accurately controls the system through the electromagnetic valve, the circulating pump, the compressor and the centrifugal fan. The control method is divided into a self-circulation mode and a refrigeration mode, automatic switching can be achieved according to temperature changes, and the cooling efficiency and stability are ensured. Through dual-mode intelligent and frequency conversion control switching, the cooling efficiency and the energy efficiency ratio are remarkably improved, and the problem that in the prior art, the cooling power of a two-phase liquid cooling machine is difficult to effectively control is effectively solved.

The invention relates to the field of optical fiber drawing production and manufacturing, in particular to optical fiber drawing cooling equipment. The optical fiber drawing cooling equipment provided by the invention comprises an equipment main body, a water circulation device, an air supply device and a heat dissipation assembly, the equipment main body comprises a shell and an inner container, the inner container is embedded in the shell, and optical fibers pass through the inner container; the water circulation device is communicated with the shell, and the water circulation device is configured to cool the gas in the inner container and the shell; the air supply device is communicated with the inner container, and the air supply device is configured to introduce air into the inner container; the heat dissipation assembly is arranged in the inner container, and the heat dissipation assembly is configured to cool air in the inner container. According to the optical fiber drawing cooling equipment, heat of gas in the inner container is absorbed through the heat dissipation assembly, the gas usage amount can be reduced, and the cooling efficiency is improved.

The invention discloses a dynamic immersion type cooling battery pack structure which comprises a battery box groove shell and a dry and wet partition plate, and the dry and wet partition plate is fixed in a box groove of the battery box groove shell and divides the box groove into a wiring harness bin and an immersion battery bin. The immersion battery bin forms a cooling liquid flow channel through a plurality of flow channel resistance reduction limiting partition plates which are alternately arranged on the cavity walls of the two sides, a battery cell is installed in the cooling liquid flow channel, a BMS battery management module is installed in the wiring harness bin, a plurality of connector holes are formed in a plate body of the dry-wet partition plate, wiring harness sealing connectors are installed in the connector holes, and the wiring harness sealing connectors are connected with the battery cell. A liquid discharge three-way switching valve pipe and a liquid inlet three-way switching valve pipe are arranged in the wiring harness bin, and two inlet end pipe orifices of the liquid discharge three-way switching valve pipe and two discharge end pipe orifices of the liquid inlet three-way switching valve pipe extend to the immersion battery bin. The cooling device has the beneficial effects of high cooling efficiency, uniform temperature distribution, simplified structure, reduced installation and maintenance cost and strong adaptability.

The invention discloses a melt spinning cooling system which comprises a spinning box, a cooling cylinder section, a first heating assembly, a second heating unit and a recovery part, the first heating assembly outputs trace hot nitrogen, anti-oxidation protection of melt trickles is achieved, the oxidation risk possibly caused by direct contact of a traditional cooling medium is avoided, and the cooling efficiency is improved. Meanwhile, the second heating unit is matched to regulate and control the temperature of the cooling cylinder section, so that the whole-process temperature accurate control from oxidation prevention to high-temperature natural cooling and the high-temperature natural cooling and cold air supply-free operation process are realized, and the solidification orientation length and process of the melt trickle can be actively lengthened by combining gradient process temperature control; different from the defect of insufficient orientation caused by too fast cooling in the prior art, key conditions are provided for optimization of a fiber orientation structure; due to the coaxially stacked cooling cylinder sections and nitrogen recovery operation, a stable cooling environment is constructed, fiber shaking is avoided, the nitrogen utilization rate and the environmental safety are improved, and the process stability and economical efficiency are balanced.

The utility model discloses a vacuum cooling temporary storage mechanism and thin film deposition equipment, and relates to the technical field of semiconductor equipment. The vacuum cooling temporary storage mechanism comprises a temporary storage bin, a sealing gate valve, a storage box, a vacuumizing assembly and a cooling module. The vacuumizing assembly is connected with the temporary storage bin, the storage box is arranged in the temporary storage bin, the temporary storage bin is provided with a conveying opening, the sealing gate valve is used for closing or opening the conveying opening, the cooling module is connected with the temporary storage bin, and the cooling module is used for cooling the temporary storage bin. Compared with the prior art, the vacuum cooling temporary storage mechanism provided by the utility model adopts the vacuumizing assembly connected with the temporary storage bin and the sealing gate valve mounted in the temporary storage bin, so that the cleanliness of the temporary storage bin can be ensured, the temporary storage bin is prevented from being influenced by the transmission bin, gas in the temporary storage bin can be directly pumped out, and the service life of the temporary storage bin is prolonged. And heat emitted by the wafer is rapidly taken away, and the cooling efficiency is high.

The utility model discloses an efficient cooling-water machine which comprises a machine shell, and an installation cavity is formed in the machine shell. The water tank is provided with a water return connector and a water outlet connector. The heat exchanger is provided with a first heat exchange pipe and a second heat exchange pipe, one end of the first heat exchange pipe is communicated with the water return connector, and the other end of the first heat exchange pipe is communicated with a pipeline of external equipment; the refrigeration assembly comprises a compressor, a condenser, a drying filter and a capillary tube, an outlet of the compressor communicates with an inlet of the condenser, an outlet of the condenser communicates with an inlet of the drying filter, an outlet of the drying filter communicates with one end of the capillary tube, and the other end of the capillary tube communicates with one end of the second heat exchange tube. The other end of the second heat exchange pipe communicates with an inlet of the compressor. Heat exchange between water in the water tank and a refrigerant is achieved through the first heat exchange pipe and the second heat exchange pipe of the heat exchanger, cooling is conducted through cold water in the water tank, and the cooling amount and the cooling efficiency are improved.

The thermal protection structure comprises a first porous medium layer arranged on the arc-shaped wall face of the front edge of the aircraft and a plurality of second porous medium layers arranged on the upper wall face and the lower wall face of the front edge of the aircraft at intervals in the flow direction. Solid walls are arranged between the first porous medium layers and the second porous medium layers and between every two adjacent second porous medium layers; the porosity of each second porous medium layer is firstly increased and then reduced along the flow direction, and the porosity of the first porous medium layer is smaller than that of the second porous medium layer at the most upstream. The method is applied to the field of thermal protection of aircrafts, the problem of local overheating existing in a traditional sweating cooling technology is effectively solved through the synergistic effect of the intermittent sweating layout and the gradient porosity material, and the situation that the cooling efficiency is reduced due to overheating of a cooling agent is avoided.

The invention discloses an expanded air film cooling hole and a gas turbine combustion chamber wall surface, relates to the field of gas turbine combustion chambers, and aims to solve the problem of poor cooling effect of an existing air film hole. The expanding type air film cooling hole sequentially comprises a cylindrical section and an expanding section in the flowing direction of cooling air flow, the cylindrical section and the expanding section are coaxially arranged, the expanding section is gradually expanded in the flowing direction of the cooling air flow, the expanding direction is the spanwise direction, an outlet of the expanding section is in a trapezoid shape, and the four corners of the trapezoid are subjected to rounding treatment. And an outlet fillet of the expanding type air film cooling hole is formed. The expanding type air film cooling holes are formed in the wall face of the combustion chamber of the gas turbine based on the expanding type air film cooling holes, every two adjacent rows of expanding type air film cooling holes are arranged in a staggered mode, and the central axes of the expanding type air film cooling holes are parallel to each other. Generation of kidney-shaped vortexes can be weakened, the air film cooling efficiency is improved, and the cooling effect is improved. The invention is applicable to gas turbine combustion chambers.

The invention discloses a multi-action compound server liquid cooling method, which comprises the following steps of: forming an interlayer by adopting a partition plate, placing a server in the interlayer of the partition plate, immersing the server in a flowing liquid-phase cooling liquid for cooling, arranging a spray head above the partition plate to spray a phase-change cooling liquid, and driving the phase-change cooling liquid to be subjected to phase-change gasification by utilizing air flow to take away heat. And multiple composite cooling heat dissipation is realized. According to the invention, a multi-effect composite cooling mode is adopted, the cooling efficiency and the cooling effect are better, the problem of heat explosion in a local area of a server can be solved, and the overall working efficiency and the safety of a server chip are better improved.

The invention provides a high-temperature liquid cooling cabinet control system and method based on intelligent energy efficiency optimization, and relates to the technical field of intelligent adjustment control. And meanwhile, constructing a digital twin containing a heat flow coupling simulation model and multi-target dynamic optimization to process real-time operation data of the liquid-cooled cabinet acquired in real time, deducing a heat dissipation result, an energy consumption result and a heat recovery result of the liquid-cooled cabinet, and performing multi-target dynamic optimization by taking the deducing result as a basis. Simulation solution is carried out by taking the purposes of ensuring the safety of a computing chip, reducing the energy consumption and stabilizing the waste heat quality as targets, an optimal control instruction set is obtained, a global dynamic balance point is actively generated in each control period, and low-energy-consumption and stable high-temperature heat output are achieved while the optimal heat dissipation cooling efficiency is ensured. Multi-target maximization cooperation is achieved, the energy utilization rate and the cooling efficiency are improved, waste is avoided, and the cost is reduced.