401 results about "Free cooling" patented technology

The invention discloses an intelligent air conditioner water chilling unit control method and system based on predictive optimization. Operation data and weather forecast data are collected to establish a dynamic response reference, building cold load sudden change opportunity is recognized, the mismatching relation between magnetic suspension frequency and wet bulb temperature is detected, and energy-saving opportunity recognition data is generated to determine a cooling starting judgment table; identifying equipment response delay characteristics by using a dynamic response reference, extracting time sequence advantage parameters to determine dislocation configuration among multiple pieces of equipment, and generating coordination control parameters; cloud-local transmission delay analysis is carried out according to the coordination control parameters, and a coordination control sequence is generated through buffer opportunity identification and delay compensation; mechanical refrigeration suppression data is generated through energy efficiency mode classification, free cooling potential mining is implemented to form a cold source optimization factor, and an emergency response strategy is generated; an emergency response strategy is used to identify a multi-device linkage trigger critical zone, a prediction correction feedback network is constructed, a global collaborative optimization instruction is generated, and the system operation efficiency and the control precision are improved.

The invention relates to the technical field of electric workover rig thermal management, and discloses a workover pump truck electric drive thermal management method and system, and the system comprises a multi-source temperature collection module, an operation state monitoring module, a thermal management analysis module, a strategy matching engine module, a dynamic execution control module, a feedback optimization module, and a prediction decision module. The method comprises the following steps: acquiring environment temperature, motor temperature, battery temperature and cooling liquid temperature data; obtaining motor power, battery current and a vehicle operation mode; generating a thermal management demand level based on the temperature and the operating parameters; matching natural cooling, air cooling or liquid cooling strategies according to grades; cooling operation is executed, the temperature change rate is calculated in real time, and the cooling intensity is dynamically adjusted; when the threshold value is exceeded, liquid cooling cooperative control is started; predicting a thermal load trend through an LSTM model, generating a dynamic cooling plan, and optimizing an execution priority; and a thermal management efficiency evaluation report is output, so that the operation reliability and energy efficiency of the electrically-driven workover pump truck are improved.

The invention belongs to the field of machine tool linear feed shaft thermal error prediction, and provides a cross-working-condition migration machine tool thermal error step-by-step prediction method and a cross-working-condition migration machine tool thermal error step-by-step prediction system. According to the technical scheme, the method comprises the following steps: acquiring thermal error data of the linear feed shaft of the machine tool under two working conditions of natural cooling and forced cooling and time-temperature distribution data of each temperature measurement point of the linear feed shaft; decoupling the thermal error data under each working condition into a linear component and a nonlinear deviation component; according to a heat conduction and convective heat transfer coupling mechanism, the inhibition effect of low-temperature water on the temperature rise of the lead screw is quantified, and a temperature rise inhibition coefficient is calculated; based on the inhibition coefficient, mapping the original temperature rise data and the nonlinear deviation component under the natural cooling working condition to an equivalent temperature rise characteristic space under the forced cooling working condition; and predicting a cross-working-condition linear component and a non-linear deviation component according to the equivalent temperature rise characteristic space, and performing superposition to obtain a thermal error prediction value of the linear feed shaft. And high-precision prediction of the thermal error of the linear feed shaft under different cooling working conditions is realized.

A hybrid adiabatic cooling system for a data center includes an outer conduit loop including a feed segment and a return segment and an inner conduit loop fluidly coupled to the feed and return segments of the outer conduit loop. The hybrid adiabatic cooling system includes a hybrid adiabatic cooler fluidly coupled to the outer conduit loop to cool a first cooling liquid circulating from the return segment to the feed segment of the outer conduit loop. The hybrid adiabatic cooling system includes a direct liquid cooling unit fluidly coupled to the outer conduit loop and an air handling unit fluidly coupled to the inner conduit loop. The hybrid adiabatic cooling system operates in a free cooling mode when the outdoor air temperature is less than a first threshold temperature and a chiller mode when the outdoor air temperature is greater than the first threshold temperature.

A heating, ventilation, air conditioning, and refrigeration (HVAC&R) system configured to operate in a plurality of cooling modes includes a mechanical cooling system configured to place a working fluid in a heat exchange relationship with a cooling fluid, a free cooling system configured to place the cooling fluid in a second heat exchange relationship with an ambient air flow, and a controller comprising processing circuitry and a memory, wherein the memory comprises instructions that, when executed by the processing circuitry, are configured to cause the processing circuitry to transition operation of the HVAC&R system between the plurality of cooling modes based on a cooling demand of the HVAC&R system and based on an estimated power consumption of the HVAC&R system.

A hybrid adiabatic cooling system for a data center includes an outer conduit loop including a feed segment and a return segment and an inner conduit loop fluidly coupled to the feed and return segments of the outer conduit loop. The hybrid adiabatic cooling system includes a hybrid adiabatic cooler fluidly coupled to the outer conduit loop to cool a first cooling liquid circulating from the return segment to the feed segment of the outer conduit loop. The hybrid adiabatic cooling system includes a direct liquid cooling unit fluidly coupled to the outer conduit loop and an air handling unit fluidly coupled to the inner conduit loop. The hybrid adiabatic cooling system operates in a free cooling mode when the outdoor air temperature is less than a first threshold temperature and a chiller mode when the outdoor air temperature is greater than the first threshold temperature.

The invention discloses an angle-variable and self-revolution wafer base device, and belongs to the technical field of wafer bases, the angle-variable and self-revolution wafer base device comprises a revolution base, a gear carrier is fixedly connected to the center of the top of the revolution base, and a base is arranged above the gear carrier. According to the cooling device, an external liquid supply device conveys cooling water into the connecting base through a cooling water inlet pipe, inclined blades in the connecting base drive a driving shaft and a double-end protruding block to rotate, a sliding block drives an annular gear and a cooling disc to rotate through a rack, and the rotating cooling disc centrifugally throws out the cooling water; a uniform and dead-corner-free cooling water curtain is formed, the rotation shaft and the adjusting shaft are completely wrapped, the cooling uniformity of the peripheral side of the shaft body is ensured, stable and efficient heat exchange is achieved, sprayed cooling water can cool the revolution seat and the gear carrier at the same time, the influence of the high temperature in the reaction cavity on the device is reduced in an auxiliary mode, and the reaction efficiency is improved. And the operation reliability and the overall performance of the device are obviously improved.

The invention discloses a controlled cooling method of a steel wire rod 87Mn for a bridge cable. The rolling temperature, the spinning temperature and the roller way speed are accurately controlled, the Stelmor air cooling control cooling technology is adopted, it is ensured that the temperature of a wire rod is evenly distributed in the cooling process, and too fast or too slow local cooling is avoided. A sectional controlled cooling process is adopted, network cementite is prevented from being generated through first-section rapid cooling, uniform transformation of the structure is ensured through second-section slow cooling, the structure is stabilized through third-section natural cooling, the process design is reasonable, and operation is easy and convenient. The finally obtained 87Mn hot-rolled wire rod is free of martensite and network cementite in the core, the sorbite rate is larger than or equal to 93%, and the 87Mn hot-rolled wire rod has high strength, high plasticity and good drawing performance and is suitable for the high-requirement field such as bridge cables.

The invention discloses an energy storage battery liquid cooling temperature control system combining natural cooling and compressor refrigeration, and relates to the technical field of energy storage equipment temperature control. The system comprises a compression cooling loop, a natural cooling loop, an environment temperature sensor and a controller, the compression cooling loop adopts a compressor refrigeration technology, the natural cooling loop is connected with the compression cooling loop in parallel, and the compression cooling loop comprises a compressor, a condensation pipe, an expansion valve and a first heat exchange plate which are sequentially and circularly communicated. The natural cooling loop comprises a liquid storage tank, a circulating pump, a natural cooling coil and a second heat exchange plate which are sequentially and circularly communicated, the two heat exchange plates are integrated in the evaporator and used for exchanging heat with the energy storage battery, and a compression cooling mode and a natural cooling mode can be switched at different environment temperatures through the hardware structure relation of the two heat exchange plates; therefore, the system energy efficiency can be improved by avoiding long-term operation of the compressor, and the phenomena of poor oil return and insufficient lubrication are avoided by avoiding long-term low rotating speed of the compressor, so that the reliability is improved and the service life is prolonged.

The invention belongs to the technical field of ocean engineering. According to the seabed data intelligent calculation center structure and the working method, a plurality of stand columns and a tubular structure are connected to form a frame used for bearing a tank body, a supporting seat is fixed in the frame, and the tank body is arranged on the supporting seat; grating plates are arranged at the two ends and the top of the frame, a plurality of suction foundations are fixed to the bottom of the frame, and data intelligent calculation equipment is arranged in the tank body; a temperature and humidity real-time monitoring sensor and a pressure balance adjusting module are integrated in the tank body, the temperature and humidity real-time monitoring sensor communicates with a cooling system outside the tank body, the heat dissipation efficiency in the tank body is adjusted in a linkage mode according to real-time temperature and humidity data, and the pressure balance adjusting module is used for automatically compensating air pressure in the cabin according to water pressure differences of different depths of the seabed; according to the invention, the structural stability of the seabed is ensured, natural cooling is carried out through low-temperature seawater, the problem of high heat dissipation energy consumption of a traditional data center is solved, and a stable working temperature environment is provided for data intelligent calculation equipment.

The invention discloses a combined type air conditioning system based on shallow geothermal utilization and a working method thereof, and belongs to the technical field of air conditioners. A combined type air conditioning system based on shallow geothermal utilization comprises a user side floor heating system, a user side air conditioning unit, a ground source heat pump unit, an air source heat pump unit and a ground source circulating water pump for free cooling. The ground source heat pump unit, the air source heat pump unit and the ground source circulating water pump for free cooling are connected into a user side floor heating water supply and return pipeline and a user side air conditioner water supply and return pipeline through pipelines respectively, and the ground source heat pump unit, the air source heat pump unit and the ground source circulating water pump are arranged in parallel. A water supply pipeline and a water return pipeline of the ground source circulating water pump for free cooling are connected with the ground source side water supply pipeline, and an electric control valve is arranged between the water supply pipeline and the water return pipeline of the ground source circulating water pump for free cooling. The cold and heat supply energy efficiency can be improved, free cold supply in local time in summer is achieved, and the system has important significance on energy conservation and consumption reduction.

The invention relates to the technical field of plastic bottle production, and discloses a plastic bottle pressurizing and blowing device and a bottle blowing method thereof, and cold air is quickly sprayed to the outer surface of a just formed plastic bottle through air holes uniformly formed in the inner wall of a mold cavity. Cold air is in direct contact with the plastic bottles, heat is rapidly taken away through forced convection, and the plastic bottles are cooled and shaped in a short time. Compared with a traditional natural cooling mode, the cooling efficiency is remarkably improved through the cooling mode, the product quality is guaranteed, the production cycle of a single product is shortened, and therefore the overall production efficiency is improved. In addition, the high-pressure gas in the main exhaust pipe is shunted through the auxiliary gas filling pipe, so that the cross sectional area of circulation of the high-pressure gas can be increased, the total flow of the gas entering the bottle preform can be increased, and the expansion speed of the bottle preform is obviously increased.

The utility model discloses an efficient cooling device for PVC (polyvinyl chloride) color film production, and relates to the technical field of efficient cooling devices. The cooling roller comprises a cooling roller body, a circulating cooling device and a transmission device, the transmission device moves outside the cooling roller body, a first pipeline is fixedly installed outside the transmission device, the circulating cooling device is fixedly installed outside the first pipeline, and a water injection pipeline is fixedly installed outside the circulating cooling device. In order to solve the problems that a traditional cooling method such as natural cooling or water cooling is low in cooling speed, high in energy consumption and low in production efficiency, the cooling roller is cooled through the water circulation cooling assembly, the temperature of a thin film is reduced through circulating cooling water in the roller body, the cooling speed is high, and the production efficiency is high. In this way, the uniform cooling effect can be achieved, water marks cannot be generated, and the requirement for large-scale production can be met.

The invention relates to the technical field of rock mechanics experiments, and discloses a high-temperature rock strength testing method for eliminating thermal stress interference through active temperature control, and the method comprises the following steps: determining a temperature control cooling rate threshold value for eliminating thermal stress accumulation based on a temperature field-stress field coupling model; the rock sample is controlled to be heated to a target temperature value, heat preservation is conducted for a preset time length, the constant-temperature box containing the rock sample subjected to heat preservation is subjected to temperature-controlled cooling to the room temperature at the target temperature-controlled cooling rate not higher than the temperature-controlled cooling rate threshold value, and therefore the internal temperature field of the rock sample is made to change evenly; and carrying out mechanical strength test on the rock sample subjected to temperature-controlled cooling to obtain a test rock strength parameter without thermal stress interference. According to the invention, thermal stress accumulation caused by natural cooling can be effectively avoided, the precision and reliability of high-temperature rock strength testing are remarkably improved, measurement errors caused by thermal stress interference are reduced, and the engineering requirements of deep ultrahigh-temperature stratum rock mechanical property research are met.

The invention discloses a melt separation titanium slag modification treatment method and system. The method comprises the steps that in the direct reduction-melt separation process, melt separation titanium slag components are regulated and controlled to enable the melt separation titanium slag to contain 40 wt%-60 wt% of TiO2 and 1.1 wt%-9 wt% of C, deslagging is conducted, after heat preservation melting is conducted on the melt separation titanium slag at the temperature of 1550-1600 DEG C for 30-60 minutes, slow cooling is conducted to 1200 DEG C at the cooling rate of 5-10 DEG C / min, then rapid cooling is conducted to 900 DEG C at the cooling rate of 20 DEG C / min or above, finally natural cooling is conducted to the room temperature, and modified slag is obtained. According to the method, regulation and control of components of the melt-separated titanium slag are combined with heat preservation, slow cooling, quenching and natural cooling, anosovite is directionally induced to serve as a main phase of the titanium slag, micronized spinel and an amorphous glass phase, titanium resources are enriched in the anosovite phase, and the modified titanium slag high in grade and good in activity is obtained; and the problems of low additional value, small utilization scale, poor economic benefit and the like of molten titanium slag products are solved.

The utility model provides a metal casting cooling device which comprises a box body and a box cover, a thermal insulation layer is arranged on the inner wall of the box body, a circle of sealing groove is formed in the top end of the box body in the circumferential direction, sealing sand is contained in the sealing groove, the box cover can be inversely buckled on the sealing sand, an air inlet is formed in the box body, an air inlet pipe is arranged at the air inlet, and an air outlet pipe is arranged at the air outlet. The air inlet pipe is connected with an inflation pump or an inflation bottle. The casting is naturally cooled in an oxygen-free state, and oxidation is effectively prevented.

The utility model discloses a plastic mould for plastic ring production, which comprises an operating platform, an upper mould, a lower mould, a hydraulic lifting device and an adjusting device, the upper mould is fixedly connected to the bottom of the inner side of the hydraulic lifting device, the lower mould is fixedly connected to the top of the adjusting device, and the left side of the front side of the top of the operating platform is fixedly connected with a water tank. Lifting mechanisms are arranged on the two sides of the water tank. By arranging the water tank, when the hydraulic lifting device drives the upper grinding tool and the lower grinding tool to be used in cooperation to machine a plastic ring, then the lower grinding tool and the plastic ring are driven by the adjusting device to move to the left side of the top of the operation table, and finally the plastic ring in the lower mold is put into the water tank to be subjected to water cooling. The problems that after the rubber ring is produced through a mold, the formed rubber ring usually needs to be cooled, and if a natural cooling mode is adopted, long time is possibly needed, so that the working efficiency is reduced are solved.

The utility model relates to the technical field of LED backlight sources, in particular to LED backlight source rubber frame processing equipment. Comprising a machine table and an injection molding mechanism, and the injection molding mechanism comprises a lower mold body, an upper mold body, a lower sealing plate, a rear sealing plate, a front sealing plate, a water inlet pipe, a water outlet pipe, a control valve and a descending device. When cooling water circulates, heat conducted by the lower mold body can be taken away, cooling of the lower mold body is achieved, and therefore rapid cooling of an internal injection molding product is indirectly facilitated, and the problem that an existing LED backlight rubber frame injection molding mold structure is not provided with a corresponding cooling structure; and therefore, a product in the mold cannot be quickly cooled after injection molding, and only natural cooling is adopted, so that the processing efficiency is influenced.

The invention relates to the technical field of heat dissipation, and discloses an energy-saving liquid cooling system and a control method thereof.The system comprises a liquid path subsystem, a fluorine path subsystem, a control module, a heat exchanger and an air cooling heat dissipation module, a secondary refrigerant circulates in the liquid path subsystem, and a refrigerant circulates in the fluorine path subsystem; the liquid path subsystem is in coupling connection with the fluorine path subsystem through the heat exchanger; the air cooling heat dissipation module is used for conducting air cooling heat dissipation on the liquid circuit subsystem and the fluorine circuit subsystem. The control module is electrically connected with the liquid path subsystem, the fluorine path subsystem and the air cooling heat dissipation module, and the control module is used for enabling the liquid cooling system to be switched between a natural cooling mode and a mixed cooling mode by adjusting the flow direction and flow of a secondary refrigerant of the liquid path subsystem, the refrigeration intensity of the fluorine path subsystem and the heat dissipation intensity of the air cooling heat dissipation module. Natural cooling and mechanical refrigeration are combined, and the system is controlled to switch different operation modes so as to reduce the energy consumption of the system.

The utility model provides a cooling structure and a tubular heat treatment furnace, and belongs to the technical field of heat treatment furnaces. The cooling structure comprises a bottom plate and a cooling device. A furnace tube is arranged in the lower furnace body, the cooling device comprises a water conveying piece and a conveying pipe set, the output end of the water conveying piece communicates with one end of the conveying pipe set, cold water cavities are formed in the two fixing blocks correspondingly, and the two cold water cavities communicate with one end of the conveying pipe set correspondingly; the connecting pipe set is communicated with the cold water cavity and the cooler, and the cooler is communicated with the water conveying piece. According to the utility model, cold water is conveyed into the cold water cavity of the fixed block through the matching of the water conveying piece and the conveying pipe group, the possibility that the furnace tube needs long time to be naturally cooled and cannot be quickly and effectively cooled is reduced, and water in the cold water cavity is conveyed into the cooler through the connecting pipe group, so that the water with over-high temperature is favorably cooled; and cold water can be conveyed into the water conveying piece.

The utility model discloses a chain type aluminum casting machine with a cooling function. In the prior art, after casting of one product is completed, a mold needs to be replaced manually or the product needs to be moved manually, the process is time-consuming and labor-consuming, and the production efficiency is low; natural cooling or simple fan cooling is adopted, enough cooling speed and uniformity cannot be provided, and products have defects; the utility model relates to a continuous production line, in particular to a continuous production line, which solves the technical problems that a heating area and a cooling area are not connected by an effective conveying system, continuous production is difficult to realize, and the overall efficiency of the production line is limited in the prior art. The continuous production line comprises a chain type conveying belt, a cooling device and a plurality of molten aluminum molds, the molten aluminum molds are evenly fixed to the chain type conveying belt, one end of the chain type conveying belt is located below the molten aluminum distributor, the demolding device is arranged at the other end of the chain type conveying belt, and the cooling device is located at the middle end of the chain type conveying belt.

Embodiments of the present application relate to an air conditioner control method and device, air conditioner equipment and storage medium. In the case where the air conditioner operates in a natural cooling mode, environmental temperature change data in a future first time period is predicted according to future weather data, and load demand change data in the first time period is predicted according to historical load data of the air conditioner. It is determined whether the environmental temperature change data meets a first preset condition. If the first preset condition is met, it is determined whether the load demand change data meets a second preset condition. If the second preset condition is met, the air conditioner is controlled to maintain the natural cooling mode in the first time period. Thus, the energy-saving air conditioner equipment is prevented from frequently switching to a compressor refrigeration mode due to short-term temperature fluctuations. The natural cooling operation time is prolonged, the number of compressor start-stop times is reduced, the compressor wear and failure rate are reduced, water temperature fluctuations are avoided, indoor comfort is improved, and the overall energy consumption of the air conditioning system is significantly reduced.

A heating, ventilation, air conditioning, and / or refrigeration (HVAC&R) system includes a vapor compression loop configured to receive a working fluid, an additional fluid loop configured to selectively bias an additional fluid to a condenser of the vapor compression loop and an evaporator of the vapor compression loop, and an air-cooled heat exchanger disposed on the additional fluid loop and configured to selectively cool the additional fluid.

The present application relates to the technical field of rail production process, in particular to a production method for improving wear resistance of channel rail for tram. After universal rolling, compressed air is applied to the channel rail for forced cooling in parts. In the first stage, supersonic air jet cooling is applied to the rail head tread, rail head running edge, rail head left side, rail lip and rail bottom to control the cooling speed of each part. In the second stage, supersonic air jet cooling is continuously applied to each part of the rail to control the cooling speed of each part. In the third stage, subsonic air jet cooling is applied to each part of the rail to control the cooling speed of each part, and then the rail is naturally cooled in air. The quenching effect of the channel rail tread and running edge is improved, the pearlite interlamellar spacing is refined, the rail strength and hardness are improved, and the channel rail has good wear resistance.

The application belongs to the technical field of power transmission and distribution equipment, and particularly relates to a dry-type transformer cooling device with intelligent wind direction guiding function, which comprises two groups of double-layer racks, an iron core is installed between the two groups of double-layer racks, and a supporting seat is installed on the top of the lower double-layer rack. The application aims at the problems that the traditional cooling air flow cannot effectively enter the deep internal area and the top of the winding, there is a heat dissipation dead zone, and local overheating and low efficiency are caused. The application is designed through a precise air supply unit, specifically, a first air fan of an annular array vertically cools upwardly against the main hole, a second air fan vertically sprays and cools inside the low-voltage winding, and a third air fan penetrates and cools along the transverse groove, which realizes omnidirectional and dead-angle-free cooling from the core inside the winding, the radial gap and the axial height, effectively covers the winding back, the deep internal area and the top area which cannot be reached by the traditional air cooling, and fundamentally prevents the generation of local overheating points.

A condenser includes valves allowing the total condensing surface of the condenser to be varied. The valves are controlled to maintain suitable pressure differentials in a mechanical cooling circuit while in a hybrid mode combining mechanical cooling by the mechanical cooling circuit with free cooling. Fan speeds for condenser / free cooling can be controlled in concert with the valves, allowing the fan speeds to be increased without causing the pressure differential to fall below requirements for operation of the mechanical cooling circuit.

The invention discloses a cooling control system and method for salt bath quenching of bearing parts, and relates to the technical field of bearing heat treatment, and the cooling control system comprises a miniature simulation body which is arranged in a salt bath tank and comprises a sealing sleeve, a thermocouple temperature sensor and an electric heating element, and the thermocouple temperature sensor and the electric heating element are sealed in the sealing sleeve; the electric heating element is configured to be capable of actively heating the micro simulation body to a preset target temperature, immediately stopping heating and naturally cooling; and the thermocouple temperature sensor is configured to acquire temperature data of the miniature simulation body in a natural cooling process in real time. According to the cooling control system and method, the quenching intensity of salt bath quenching can be dynamically monitored in real time, a cooling characteristic curve is automatically generated through collected temperature data, a special control model is constructed by utilizing a self-learning algorithm, finally, the water supplementing amount is automatically and accurately adjusted according to the technological requirements, and the water supplementing efficiency is improved. And the cooling rate of the bearing part is stabilized in an ideal range.

The invention belongs to the technical field of data center energy saving, and discloses a data center intelligent cooling PUE optimization system which comprises a wet bulb variable flow cooling module, a critical phase change water cooling module, a free cooling AHU air conditioning box module, a heat exchanger module for providing energy through liquid cooling and an I T machine room PUE evaluation module. On the basis that the original indoor layout is not changed, the automatic critical phase change water cooling system replaces traditional air cooling, the heat dissipation efficiency is improved through phase change heat transfer, the unit failure rate is reduced by over 60%, and stable operation of the data center is guaranteed. Meanwhile, a free cold control method is introduced, mechanical refrigeration dependence is reduced by means of a natural cold source, cooling energy consumption is reduced by 30%-40%, and energy conservation and cost reduction are achieved; in addition, the PUE monitoring, tracking and evaluating system cooperates with all the modules, energy consumption is monitored in real time, accurate regulation and control are achieved, the system adapts to environment and load changes, the data center is promoted to develop towards the intelligent and green direction, and reliability and economical efficiency are both achieved.

This utility model discloses an auxiliary device for coal quality testing and analysis, including a cooling tank. A placement slot is provided on the side of the cooling tank, and a coal sample placement assembly is movably placed inside the placement slot. A cooling component is provided on the side of the cooling tank, and an exhaust component is provided on the top of the cooling tank. The coal sample placement assembly includes a placement rack, a cover plate, and a positioning component. This utility model achieves faster cooling of the coal sample by setting up a coal sample placement assembly and a cooling component. The coal sample placement assembly is moved by a pull-out mechanism to place the coal sample. The cooling component provides dehumidified air into the cooling tank to accelerate gas flow and simultaneously injects fresh air, allowing the heated air to be discharged from the top exhaust component. This accelerates the cooling of the coal sample by increasing gas flow within the cooling tank, solving the problem in existing technologies where natural cooling after coal drying results in a long cooling time, thus extending the overall coal quality testing time.

The invention belongs to the technical field of cooking preparation devices, and particularly relates to a cooking boiler with a cooling structure, which comprises a cooking boiler, a sealing cover plate is fixedly connected to the digester; a movable cover plate is connected to one side, close to the sealing cover plate, of the digester in a sliding manner; the outer part of the digester is fixedly connected with a heat insulation plate; a cooling pipe is fixedly connected to the interior of the heat preservation plate; the cooling pipe is assembled outside the digester in a surrounding mode, after materials in the digester are cooked, steam in the digester is discharged, cooling water is pumped into the cooling pipe, the cooling water flows in the cooling pipe in a surrounding mode and cools the heat preservation plate and the digester, and the digester and the materials in the digester are efficiently cooled; water circulating in the cooling pipe is discharged from the first discharge pipe, efficient cooling is performed by introducing cooling water to the outside of the digester for heat exchange, the duration of traditional natural cooling can be shortened, and the working efficiency of a kitchen is improved.