228 results about "Cooling temperature" patented technology

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

According to the multi-path cooling control method for the non-adjustable flow of the cooling spray box after hot plate rolling, the mode that an annular rail is combined with a trolley is adopted, the trolley bears a sample through a sample bearing table to do annular motion, the annular rail is an oval rail comprising two parallel linear segments and two semicircular segments, and at least one cooling spray box is arranged along the linear segment rail; the cooling area can be infinitely lengthened at any workpiece speed; according to the cooling starting temperature, the water cooling speed, the cooling stopping temperature, the cooling stopping time between the cooling areas and the production line cooling spray box layout of the N cooling areas determined by the experiment, the experiment device is configured according to different spray box opening modes, the cooling experiment is carried out, and spray box opening mode parameters corresponding to the optimal cooling speed of the N cooling areas are obtained; carrying out cooling control after rolling on corresponding sample production; besides, the method is implemented under the condition basically consistent with the actual working condition of the production line, so that the product design output and the production line process control are more accurate and efficient, the product research and development speed can be effectively increased, the process control precision is improved, and the production line trial-manufacturing cost is reduced.

The invention provides a food pre-cooling temperature prediction method and device based on deep learning, and the method is characterized in that the method comprises the steps: obtaining the temperature time sequence data of a plurality of temperature measurement points based on the given technological parameter data measurement in the ventilation pre-cooling process of target food; preprocessing the temperature time sequence data to obtain a temperature fusion feature sequence; and inputting the temperature fusion feature sequence into a fusion deep learning model, and outputting a temperature prediction result. According to the method, errors caused by manual intervention are reduced, and the precision of temperature prediction in food ventilation and precooling is remarkably improved.

The invention discloses a wind-water combined heat dissipation method and device for a hydraulic station, and relates to the technical field of hydraulic heat dissipation control. The wind-water combined heat dissipation method comprises the steps that an expected die-casting plan of a target die-casting machine is read; an expected working load is determined, temperature rise trend prediction of oil liquid of the multiple hydraulic components is carried out, and multiple predicted oil temperatures are output; performing cooling demand analysis, and determining a plurality of initial cooling temperature values; carrying out lubrication performance attenuation analysis, compensating the plurality of initial cooling temperature values, and outputting a plurality of cooling temperatures; a wind-water combined heat dissipation twin model is constructed, heat dissipation parameter simulation optimization is carried out, and an optimized heat dissipation control strategy is output; and according to the optimized heat dissipation control strategy, heat dissipation control in the cooling backflow period is conducted on the target hydraulic station. The technical problems that in the prior art, heat dissipation accuracy and practicability are insufficient, and the working quality and working efficiency of the hydraulic station are affected are solved, and the technical effects that the heat dissipation accuracy and practicability of the hydraulic station are improved, and the working efficiency and working quality of the hydraulic station are improved are achieved.

The invention discloses a coil pipe cooling immersed box body coupled with a CO2 energy storage system. The coil pipe cooling immersed box body comprises a box body, a box cover and a cooling coil pipe, the box body is filled with cooling liquid, the density of the cooling liquid is reduced along with the rise of the temperature in the temperature range needing to be cooled, a part to be cooled is immersed in the cooling liquid, the cooling liquid forms circulation around the cooling part, and a vertical channel is formed in the box body; the box cover is covered on the box body; the cooling coil pipe is installed in the vertical channel, a circulating medium in the cooling coil pipe is subcritical carbon dioxide, and the cooling coil pipe is coupled with a CO2 energy storage system, so that the effects that the structure is simple, installation is convenient and fast, the temperature difference in the box body is reduced through CO2 phase change heat absorption, and the cooling efficiency is high are achieved.

The invention provides a finish rolling inlet temperature forecast control method and device, electronic equipment and a storage medium, and relates to the technical field of steel rolling, and the method comprises the following steps: firstly, constructing a temperature forecast control model based on historical data in the hot rolling cooling process of different plates, and then according to the temperature data collected at the real temperature and the output result of the temperature forecast control model, calculating the temperature forecast control value; dynamically adjusting parameters of the temperature forecast control model; based on the deviation between the temperature distribution predicted by the temperature forecast control model and the target temperature distribution, parameters of a cooling system are adjusted so as to control the cooling temperature of a finish rolling inlet; through the method, the technical problem that the cooling temperature control precision is low in the hot rolling production process is solved, and the technical effects of improving the temperature stability of a finish rolling inlet, and improving the cooling efficiency and the product quality stability are achieved.

The invention relates to the technical field of plastic molding, in particular to a plastic pad extrusion molding cooling device which comprises a vertical frame, a fixed cylinder, a roller, a spiral sleeve and a detection assembly. The roller is divided into a plurality of cooling cavities for independently supplying water, water is supplied to the cooling cavities at the same time, the problem of uneven cooling caused by water flowing is solved, the spiral sleeve forcibly cools water to form turbulent flow, and compared with smooth laminar heat exchange, the cooling efficiency is improved, and the service life of the roller is prolonged. Then, the cooling temperature is detected in real time by means of the detection assembly, external supplementary cooling is conducted according to the situation, and therefore the mode that water is independently supplied to the multiple cooling cavities for turbulent cooling and matched with external supplementary cooling is formed, and the uniform cooling degree of the plastic pad is comprehensively improved; and the quality problems of buckling deformation, sinking, shrinkage and the like of the plastic pad caused by non-uniform cooling are avoided.

An additive manufacturing method includes a heating step, a manufacturing step, a cooling step, a cutting step, a first correction step, and a second correction step. In the heating step, a build table is heated to a preheating temperature. In the manufacturing step, a solidified layer is formed. In the cooling step, the build table is cooled to a cooling temperature. In the cutting step, a cutting process is performed on the solidified layer. In a first correction step executed after the heating step and before the manufacturing step, a positional misalignment of the base plate is measured, and a coordinate system used in the manufacturing step is corrected. In a second correction step executed after the cooling step and before the cutting step, a positional misalignment of the base plate is measured, and a coordinate system used in the cutting step is corrected.

The present application relates to a rotary kiln cooler with external air chamber, comprising upper bin body, ring beam, central air distributor, chamber air distributor, lower cone bin, discharging cone and air supply pipeline; the rotary kiln cooler uses two different cooling methods to cool materials at different heights; in the upper part of the cooler, a plurality of air distributors embedded in the material layer and adapted to the shape characteristics of the material layer directly supply air to the material layer for pre-cooling; in the lower part of the cooler, the material is divided into multiple streams, and a plurality of air supply chambers are arranged to achieve uniform cooling in multiple regions; the cooler has simple structure, low material cooling temperature, can cool high-temperature materials from about 1100 DEG to more than 30 DEG to 50 DEG above room temperature, and has sufficient cooling, no red material inclusion, high thermal efficiency, and remarkable energy saving and emission reduction effect.

The invention discloses a fluid vacuum cooling method based on critical shear rate control. The fluid vacuum cooling method comprises the following steps: placing a fluid material in a rotationally symmetrical vacuum cavity with a material container; establishing a vacuum environment, and enabling the ultimate vacuum pressure in the vacuum cavity to be lower than the saturated vapor pressure corresponding to the target cooling temperature; stirring the fluid material to form a water directional migration channel pointing to the surface from the interior of the material; the stirring shear rate gamma is controlled to be larger than or equal to the critical shear rate gamma crit, a pressure shell layer in fluid is destroyed, an evaporation area is transferred to the surface from the interior of a material, and splashing is fundamentally restrained; and meanwhile, centrifugal backflow of splashing liquid drops is realized by adopting a rotary symmetrical vacuum cavity. Therefore, the splashing of fluid vacuum cooling is greatly reduced, the vacuum cooling time is shortened, and the cooling efficiency is greatly improved.

The present invention provides a dynamic energy-saving control method, system, and medium for a variable-frequency air handling unit. The method comprises: obtaining a current value of a post-surface cooling temperature, a temperature setpoint and a humidity setpoint, a return air temperature, a return air humidity, a user-set operating mode of the air conditioning system, and a direct expansion control word. A target dew point temperature is found based on the temperature setpoint and the humidity setpoint; a dynamic temperature setpoint is found based on the return air temperature and the temperature setpoint; based on the operating mode and the direct expansion control word, the air conditioning system dynamically configures a post-surface cooling temperature control target value according to the temperature setpoint, the return air temperature, the dynamic temperature setpoint, and the target dew point temperature; and finally, adjusting the frequency of the variable-frequency compressor of the air conditioning system through closed-loop control, using the post-surface cooling temperature control target value as the target value and the current post-surface cooling temperature value as the current value.

The purpose of the present disclosure is to provide an ozone generation device that can, in a structure having an object-transfer internal member, reduce environmental load and extend service life without decreasing the efficiency of use. In the present disclosure, an outer frame member (31) has an opening (31b), and an object-transfer internal member (32) is provided in the opening (31b). The object-transfer internal member (32) has a diameter variation property in which the member diameter (d2) becomes less than the opening diameter (d1) of the opening (31) at a cooling temperature (T1) or lower, and the member diameter (d2) becomes equal to or greater than the opening diameter (d1) in a non-cooling temperature range (TH). At a boundary surface (33) between the outer circumferential surface of the object-transfer internal member (32) and the inner circumferential surface of the opening (31b), the object-transfer internal member (32) and the opening (31b) are tightly attached to each other without having another member interposed therebetween.

The invention provides a liquid nitrogen cooling system for maintaining continuous infiltration of the upper surface of a cold cavity. The liquid nitrogen cooling system comprises a liquid nitrogen Dewar, a gas-liquid separator and a cooling temperature control cavity, wherein the liquid nitrogen Dewar is used for providing low-temperature liquid nitrogen; one end of the gas-liquid separator is connected with the liquid nitrogen Dewar through a liquid-phase pipeline, the bottom of the other end of the gas-liquid separator is connected with the cooling temperature control cavity through a liquid-phase pipeline, and the top of the gas-liquid separator is connected with a gas-phase pipeline for exhausting gas; a temperature sensor and an acoustic emission probe are mounted in the cooling temperature control cavity, the temperature sensor is used for monitoring the wall surface temperature change of the cooling temperature control cavity in real time, and the acoustic emission probe is used for monitoring a high-frequency elastic wave signal in the cooling temperature control cavity; the wetting state of the upper surface of the cooling temperature control cavity can be judged, so that liquid nitrogen on the surface of the cooling temperature control cavity is conveniently controlled, the cooling temperature control cavity is prevented from entering a dry condition, and the liquid nitrogen heat exchange efficiency is improved.

The heat treatment equipment comprises an inner furnace body, an outer furnace body, a vacuumizing component, a heating temperature control component, a cooling temperature control component, a heat exchange component, a fan component and a spray cooling component, all the parts are specifically arranged, particularly, the heating parts which are arranged in the heating stage and the heat preservation stage and are arranged for the shaft elements, independent control over all the areas and independent control over all the areas of the spray nozzle are adopted, and the specific arrangement mode in the heat treatment process is combined; particularly, high-pressure inert gas quenching and atomized cooling liquid composite cooling are combined, and independent control of a spray nozzle is matched, so that more uniform and reliable heating, heat preservation and quenching of the shaft element are realized, and the fatigue life and the dimensional stability of the shaft element are remarkably improved.

The application discloses a control method for cooking rice by a cooking utensil and the cooking utensil. The cooking utensil comprises an inner container for cooking rice, a heating device, a temperature sensor and a fan. The control method comprises a low-temperature water absorption stage, a heating temperature rising stage, a boiling stage, a high-temperature rice stewing stage and a fan cooling temperature reducing stage. The boiling stage comprises at least one boiling gradient control stage. In the boiling gradient control stage, the heating device is controlled to heat the bottom temperature of the inner container, so that the temperature rising rate of the bottom temperature of the inner container is in a required rate range. After the bottom temperature of the inner container reaches a boiling gradient temperature detected by the temperature sensor, the heating device and the fan are jointly controlled to maintain the bottom temperature of the inner container. When the time length during which the bottom temperature of the inner container is at the boiling gradient temperature is greater than a preset gradient stage time length, the heating device is turned off, and the fan is controlled to work, so that the bottom temperature of the inner container returns to an initial bottom temperature of the initial boiling stage.

The present invention discloses a sub-Kelvin temperature range refrigeration mechanism, comprising a pulse tube refrigeration unit, a first pre-cooling heat exchanger, a throttling refrigeration unit, a second pre-cooling heat exchanger, an adsorption refrigeration unit, a third pre-cooling heat exchanger, and a dilution refrigeration unit. The pulse tube refrigeration unit includes a pulse tube refrigeration unit, which is connected to the throttling refrigeration unit via the first pre-cooling heat exchanger to pre-cool the throttling refrigeration unit. The throttling refrigeration unit includes a throttling refrigeration unit, which is connected to the adsorption refrigeration unit via the second pre-cooling heat exchanger to pre-cool the adsorption refrigeration unit. The adsorption refrigeration unit includes an adsorption refrigeration unit, which is connected to the dilution refrigeration unit via the third pre-cooling heat exchanger to pre-cool the dilution refrigeration unit. The dilution refrigeration unit includes a dilution refrigeration unit, which serves as the refrigeration terminal of the sub-Kelvin temperature range refrigeration mechanism. Compared to the prior art, the refrigeration mechanism of the present invention can achieve lower cooling temperatures and greater cooling capacity.

The invention relates to a solution dehumidification evaporation cooling-water machine for a liquid cooling data center, which comprises an air filtering unit, a solution dehumidification unit, an evaporation cooling unit, a solution concentration regeneration unit, a heat exchange unit and an air supply unit, and is characterized in that the air filtering unit is used for filtering external air; the solution dehumidification unit is used for carrying out dehumidification treatment on ambient air in a solution dehumidification mode; the evaporative cooling unit is used for cooling the internal thermal circulating water to obtain cold water; the air supply unit is used for discharging air entering the air supply unit, and the solution concentration and regeneration unit is used for evaporating and concentrating the dehumidification solution with reduced concentration and then recycling the dehumidification solution; the heat exchange unit is used for carrying out secondary heat exchange cooling on external hot water by utilizing cold water obtained by the evaporative cooling unit; high-temperature cooling return water of the liquid cooling data center is used as heat to evaporate and concentrate a diluted solution, and then low-temperature cooling water generated by indirect evaporation of a cooling-water machine is used for carrying out secondary heat exchange on the high-temperature cooling water, so that the temperature requirement of cooling is met.

A cooling system (RS) includes a vacuum insulation container (4), an object to be cooled (3), a cryogenic refrigerator (CR), a thermal conduction connector (TC), a temperature sensor (TS), current leads (D1, D2), and a controller. The temperature sensor detects the temperature of one of the object to be cooled, a cold stage, the thermal conduction connector, and the current leads. The controller performs an operation stop process to stop operation of the cryogenic refrigerator in a case in which, while the cryogenic refrigerator is operating, the temperature detected by the temperature sensors drops to a predetermined target cooling temperature, and an operation start process to start operation of the cryogenic refrigerator in a case in which, while operation of the cryogenic refrigerator is stopped, the temperature detected by the temperature sensor rises to a predetermined operation start temperature that is higher than the predetermined target cooling temperature.

Typically, electric power sources, such as batteries and fuel cells, require cooling to temperatures near or below ambient temperature for safe and efficient operation. Traditional cooling systems are not be able or practical to cool the components to the required temperatures, due to the lack of temperature differential between the required cooling temperature and the ambient temperature, which drives the heat transfer. Disclosed embodiments optimize the efficiency of a cooling system based on ambient conditions. In particular, embodiments determine input parameters from one or more sensed parameters, such as ambient temperature and ambient pressure, and utilize these input parameters in a process that maximizes the operation of cooling units in the most efficient mode.

A cooling and molding apparatus for carbon-carbon composite materials relates to the field of composite material manufacturing technology, addressing the problem in existing technologies where precise control of cooling temperature is difficult, easily leading to stress concentration within the carbon-carbon composite material. The apparatus includes a cooling cylinder with a cover at its top, the top of which is connected to a gas storage cylinder via a gas supply pipe. An inlet pipe and an outlet pipe are fixedly connected to the outside of the cooling cylinder. The inlet pipe is connected to a cold water tank via an inlet pump, and the outlet pipe is connected to a first water storage tank via an outlet pump. Both the cold water tank and the first water storage tank are housed within the machine body, which also contains a second water storage tank. A main control device is connected to the side wall of the machine body. The advantages are: it allows the cooling process to be divided into multiple stages and dynamically adjusts the cooling water flow rate, avoiding stress concentration during the cooling process.

The invention relates to a cooling unit for storing temperature-sensitive goods at a desired cooling temperature, comprising a cooling compartment (9) for storing the temperature-sensitive goods, an insulation (1) separating the cooling compartment (9) from an ambient space (10), a multi-stage cascade refrigeration system adapted to cool down the cooling compartment (9) to the desired cooling temperature and / or maintain the desired cooling temperature in the cooling compartment (9), said multi-stage cascade refrigeration system comprising at least a high-temperature refrigeration cycle (11) and a low-temperature refrigeration cycle (12), whereas said low-temperature refrigeration cycle (12) comprises a low-temperature evaporator (13) arranged to absorb heat from the cooling compartment (9), and whereas the high-temperature refrigeration cycle (11) comprises a high-temperature condenser (14) arranged to reject heat to the ambient space (10), whereas a high-temperature evaporator (3) of the high-temperature refrigeration cycle (11) is thermally coupled to a low-temperature condenser (4) of the low-temperature refrigeration cycle (12) in order to form an intercooler, whereas said high-temperature evaporator (3) and / or said low-temperature condenser (4) are / is thermally coupled to the insulation (1).

The utility model discloses a kind of secondary zinc oxide settling chamber dust circulating devices, comprising: settling chamber;Dust cooling pond, the dust cooling pond one side is equipped with closed air auger conveyor, the discharge outlet of the bottom of settling chamber is communicated with dust cooling pond by closed air auger conveyor;Secondary zinc oxide raw material bin, bag-type dust collector is equipped on the secondary zinc oxide raw material bin, the air inlet end of bag-type dust collector is connected with conveying pipeline, the feeding end of the conveying pipeline is located at the bottom of dust cooling pond;Cooling temperature measuring assembly, the cooling temperature measuring assembly is used to carry out cooling temperature measurement to remote, the cooling temperature measuring assembly is equipped on dust cooling pond.The beneficial effects of the utility model are that cooling temperature measuring assembly is used to cool dust, dust can be fully contacted with cooling temperature measuring assembly, can discharge the heat of dust in time, reduce cooling time, improve cooling efficiency, can measure the temperature of dust of different depth, improve measurement precision.

The present application discloses a kind of extra-thick stainless steel composite plate and its preparation method.In the method, first, the composite blank with the stacking order of base material, composite material, composite material and base material is prepared; then, the obtained composite blank is heated, and the soaking temperature is 1170-1220 DEG C; two-stage controlled rolling of rough rolling+finish rolling is used to obtain the composite plate big plate with thickness ≥54 mm; then, intermittent cooling is carried out: when the composite plate big plate passes through the ultra-fast cooling system, the opening and closing state of 24 groups of cooling headers is controlled according to the mode of opening N groups of cooling headers and then not opening M groups of cooling headers, the cooling water pressure is 0.2 MPa, the cooling speed is 3-15 DEG C / s, the final cooling temperature is 380-450 DEG C, and the roller speed is 0.2-0.4 m / s; wherein N and M are 2, 3 or 4; the composite plate big plate passes through the ultra-fast cooling system once, which completes the intermittent cooling, and then is naturally cooled to room temperature on the cooling bed.

The application provides a finish rolling inlet temperature prediction control method and device, electronic equipment and storage medium, relates to the rolling technology field, and the method first constructs a temperature prediction control model based on historical data in the hot rolling cooling process of different plates. Then, according to the temperature data collected at the real temperature time and the output result of the temperature prediction control model, the parameters of the temperature prediction control model are dynamically adjusted. Based on the deviation between the temperature distribution predicted by the temperature prediction control model and the target temperature distribution, the parameters of the cooling system are adjusted to control the cooling temperature at the finish rolling inlet. The above method solves the technical problem of low cooling temperature control precision in the hot rolling production process, and achieves the technical effects of improving the finish rolling inlet temperature stability, improving the cooling efficiency and product quality stability.

The invention provides an after-rolling cooling method, device and equipment and a medium, and relates to the technical field of hot rolling. The method comprises the following steps: selecting a plurality of sample points on rolled strip steel; determining whether a target sample point passing through a target pyrometer in a target time period exists in the plurality of sample points in the cooling process or not; if the target sample point passes through the target pyrometer in the target time period, determining whether the target sample point needs to be subjected to adaptive calculation or not; if the target sample point needs to be subjected to adaptive calculation, determining a target adaptive coefficient based on the flatness of the target sample point and the attribute of the strip steel; and cooling the strip steel after rolling based on the target adaptive coefficient. According to the post-rolling cooling method, device and equipment and the medium, accurate control over the post-rolling cooling temperature can be achieved.

This invention relates to the field of metallurgical technology, specifically to an ultra-low yield strength ratio, high-phosphorus, atmospheric corrosion-resistant steel and its preparation method. The preparation method includes: placing a cut billet into a slow-cooling pit, with the initial slow-cooling temperature ≥500℃ and the final slow-cooling temperature not lower than 300℃; heating the slow-cooled billet, controlling the billet's exit temperature from the furnace to 1140~1170℃, and the furnace time coefficient to be 10~11 min / cm; employing a two-stage rolling process, with the billet undergoing the first stage of rolling after descaling, and the surface temperature of the rolled piece at the start of the second stage of rolling being T2=(T+1600 / H-1.8H)℃, and the rolled steel plate not being water-cooled; and then placing the rolled steel plate between steel plates at 500~600℃ for at least 48 hours to achieve stacking cooling. This invention utilizes a fine, uniform microstructure and phosphorus and chromium compounds to improve the material's corrosion resistance, meeting the requirements for corrosion resistance and high toughness of steel used in building and engineering structures in coastal atmospheric environments.

The application discloses a heat exchange device and a particulate matter forming device, and belongs to the technical field of heat exchange. The heat exchange device comprises a circulating module, a heat exchange module and a guide assembly. The circulating module comprises a supporting seat, a cooling water tank and a circulating pipeline. The cooling water tank is composed of a falling water section, a cooling section and a circulating sinking box distributed in sequence from left to right. The guide assembly comprises a fixed material guide plate and a metal partition plate. The fixed material guide plate is fixedly installed in the middle of the cooling section. A plurality of metal partition plates are fixedly installed on the fixed material guide plate at equal intervals. A plurality of through holes are uniformly formed on the fixed material guide plate at equal intervals. The heat exchange module comprises a heat exchange pipeline, a communication pipe, an electromagnetic valve and a thermometer. In the above manner, the material flows with the water flow during the cooling process. The temperature at different positions is adjusted, so that the cooling effect is guaranteed, and suitable cooling temperatures are provided for the material at different cooling stages. Energy waste and material damage caused by excessive cooling are avoided.

The utility model provides a low-temperature high-pressure hydrogen storage pressure container, which belongs to the technical field of hydrogen storage and comprises a storage bottle body, a pressure-resistant inner container is arranged on the inner wall of the storage bottle body, a hydrogen delivery pipe is communicated with one side of the pressure-resistant inner container in a sealed manner, a heat-conducting inner container bottle is arranged on the outer wall of the pressure-resistant inner container, and a threaded groove is formed in the outer wall of the heat-conducting inner container bottle. A cooling pipe is arranged in the threaded groove, one end of the cooling pipe is in pipe connection with a heat discharge pipe, a heat insulation plate is arranged between the heat discharge pipe and the cooling pipe, the heat discharge pipe is wound on the outer wall of the heat insulation plate, a heat insulation layer is wrapped on the outer wall of the heat discharge pipe, and a main tank body is arranged on the outer wall of the heat insulation layer. External heat is isolated through the heat insulation plate, meanwhile, the cooling temperature in the cooling cavity is kept through the heat preservation layer, the cooling cavity is in a low-temperature state, the cooling temperature is kept in a stable interval, temperature fluctuation in the cooling process is avoided, and the liquidation temperature level of reduction liquid hydrogen can be conveniently adjusted after equipment is transported to a designated position and the temperature changes.

The utility model provides a heat dissipation structure of a solar controller, which belongs to the technical field of photovoltaic controllers and comprises a controller shell, a sealing cover plate, a ventilation dustproof net, a partition plate, a mounting frame, a support, a controller component, a surface-mounted temperature sensor, a sintering heat pipe, a heat dissipation sheet and a heat dissipation fan. According to the utility model, the radiating fins hung at the upper ends of the controller components can absorb heat emitted upwards by the controller components from the upper ends, and the fins of the radiating fins are trapezoidal, so that the radiating fins can fully absorb the heat from a heat source part and quickly transfer the heat to a thinner area around, thereby improving the radiating efficiency and reducing the heat loss. The inclination angle of the flow guide grooves of the cooling fins is 15 degrees, natural convection airflow can be guided to pass through a cooling area in an accelerated mode, the circulation performance of air in the controller can be improved, heat on the side faces of controller components can be rapidly conducted to the far-end cooling fins through the sintering heat pipes, the cooling temperature difference can be reduced, and the service life of the controller is prolonged. And the condition of overlarge regional cooling difference is reduced.

An interval cooling control method based on a runway type high-speed cooling platform comprises the following steps that (1) a sample is placed on a sample bearing table on a trolley in the mode that an annular rail is combined with the trolley; at least one cooling device is arranged along the linear section track; the cooling jet flow ejected by the cooling device is directly jetted onto the sample to simultaneously perform double-sided cooling on the upper surface and the lower surface of the sample; 2) heating the sample according to cooling heat exchange research requirements, and synchronously measuring the temperature of the sample; (3) starting a cooling device after the sample reaches an initial cooling temperature T0 of 750-1000 DEG C, closing cooling water or moving the sample out of a cooling area when the temperature reaches a target temperature T1 of 500-800 DEG C after water cooling, and starting water cooling after continuous air cooling time t of 0-25 seconds; when the temperature reaches the final cooling temperature T2 = 0-700 DEG C, cooling water is closed or the trolley is moved out of the cooling area, and meanwhile the speed of the trolley is controlled to be reduced till the trolley is static; 4) testing the performance of the sample; and 5) repeating the step 2) to the step 4), and determining the cooling process test parameters of which the performance meets the requirements according to the measured data.