7403 results about "Air cooling" patented technology

The invention relates to the technical field of wind power operation and maintenance technologies, and discloses a combined heat dissipation system of a fan, the system comprises a multi-source sensing module, a decision control module, a heat dissipation execution module and a safety early warning module, and by setting multi-mode cooperative control, when fan heat dissipation regulation and control are carried out, the heat dissipation of the fan can be controlled in a multi-mode cooperative mode; a dynamic matching mechanism of temperature field characteristics and heat dissipation modes is established, and air cooling, liquid cooling and phase change strengthening modes are automatically switched in real time according to the temperature rise rate and the heat distribution gradient, so that the system can accurately adapt to heat dissipation requirements under different working conditions, timely heat dissipation of a high-temperature core area is guaranteed, the heat dissipation response accuracy is improved, and the service life of the system is prolonged. By arranging the three-dimensional thermal field balancing system, the hot area distribution difference of the bearing, the winding and the power module is recognized in real time, the cooling liquid flow and the airflow guide angle are dynamically adjusted, the three-dimensional thermal unbalance phenomenon in a traditional heat dissipation mode is eliminated, and it is guaranteed that the temperature gradient of all areas in the motor is always kept within a safety threshold value.

The invention relates to the technical field of air-cooled air conditioner control, in particular to an air-cooled air conditioner control method and system based on deep learning, and the method comprises the following steps: obtaining sensor readings of indoor temperature, outdoor temperature and humidity and Wi-Fi channel state information, judging the position number and the activity state of personnel, calculating the position distribution of the personnel in combination with a time window, and calculating the position distribution of the personnel. And integrating to obtain a multi-dimensional environment and load state vector. According to the method, indoor and outdoor temperature, humidity, Wi-Fi channel state information and personnel position distribution and activity states are integrated through a multi-dimensional environment and load state vector, the personnel density change trend is dynamically calculated through a time window, the comprehensiveness and real-time performance of environment perception are enhanced, and high-dimensional data support is provided for control decision making. And a basic comfort degree deviation index is constructed based on the temperature deviation value and the humidity deviation value, and a multi-target performance index set is generated in combination with the wind speed value, the compressor start-stop frequency and the energy consumption power.

The utility model relates to the technical field of hydraulic stations, and discloses an automatic temperature control system for a hydraulic station, which comprises an air-cooled radiator for radiating hydraulic oil, an oil inlet pipe and an oil outlet pipe for connecting the air-cooled radiator with the hydraulic station, a controller, a temperature sensor A, a temperature sensor B and an alarm, the temperature sensor monitors the temperature of hydraulic oil entering and exiting the air-cooled radiator in real time, and the controller adjusts the heat dissipation effect of the air-cooled radiator according to monitored data so as to maintain the oil temperature within a suitable range. And if the oil temperature exceeds a set threshold value, the controller can activate the alarm to prompt an operator to intervene. The system can monitor the oil temperature in real time and quickly respond to temperature changes, and it is guaranteed that the performance of hydraulic oil is in the optimal state all the time.

The invention discloses a battery prefabricated cabin intelligent refrigeration control method and system based on data driving, and relates to the technical field of battery energy storage system thermal management, and the method comprises the steps: collecting the operation multi-source data of a battery prefabricated cabin, and constructing the current thermal environment state expression; constructing a battery cabin short-term internal heat change trend prediction model based on the operation multi-source data of the battery prefabricated cabin; and according to the current thermal environment state expression and the thermal trend prediction result of the battery compartment short-term internal thermal change trend prediction model, an optimal control strategy for an air cooling, liquid cooling or composite refrigeration mode is formulated. According to the method, a closed-loop thermal management system driven by data is formed by constructing a thermal state expression module, a thermal trend prediction module and an intelligent refrigeration decision module, accurate recognition and active regulation and control of the thermal risk of the battery prefabrication cabin are achieved, the temperature control precision and the response efficiency are improved, energy consumption and over-control risks are effectively reduced, and the method is suitable for popularization and application. And the system has the advantages of remarkable engineering practical value and system intellectualization.

The present invention relates to the technical field of control cabinets, and provides an electrical control cabinet for a thermal power plant, comprising an electrical control cabinet, wherein the electrical control cabinet is provided with a plurality of ventilation openings, a heat absorption plate is fixedly mounted on an inner wall of the electrical control cabinet, a heat dissipation structure is mounted on the heat absorption plate, four connecting bases are symmetrically and fixedly mounted on a top side of the electrical control cabinet, a ventilation structure is mounted on the four connecting bases, two mounting frames are symmetrically and fixedly mounted on the top side of the electrical control cabinet, and an anti-snow structure is mounted on the two mounting frames. According to the present invention, heat dissipation is achieved by means of a combination of heat conduction and air cooling, thereby further improving the heat dissipation effect of the electrical control cabinet. When the present invention is used in winter, if the ambient temperature is low, a fan and an electric heating tube can be turned on to heat internal equipment within the electrical control cabinet, so as to prevent any impact on the operation of the equipment due to excessively low temperatures; when the present invention is used outdoors, a protective metal roof can be employed for snow protection. Furthermore, the present invention also includes a snow removal function.

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 relates to the technical field of electric welding machines, in particular to a dynamic heat dissipation control method and system for an intelligent electric welding machine. A heat load real-time calculation and heat accumulation trend prediction step; a dynamic collaborative heat dissipation strategy generation and execution step: dynamically generating and executing an air cooling heat dissipation strategy, an air cooling and liquid cooling collaborative heat dissipation strategy or a protective heat dissipation strategy according to a comparison result; wherein the control parameters of the air cooling heat dissipation strategy are determined according to the difference value between the predicted temperature and the corresponding threshold value and the environment temperature; the control parameters of the air cooling and liquid cooling collaborative heat dissipation strategy are determined according to the difference value between the predicted temperature and the corresponding threshold value and the environment humidity; and a heat dissipation effect feedback and self-adaptive calibration step. Real-time sensing, thermal load prediction, a dynamic heat dissipation strategy and feedback calibration are combined, the heat dissipation strategy can be dynamically adjusted according to the working environment and the operation state of the electric welding machine, and the stability and reliability of equipment are improved.

The invention relates to a clean energy combustion technology, and aims to provide a rotational flow on-duty multi-element micro-mixing coupling type low-nitrogen combustion device for hydrogen-doped natural gas. Comprising an air cooling cavity, an air bin fixing cavity and a gas bin fixing cavity which are sequentially stacked from top to bottom. An on-duty combustion unit of a sleeve structure is arranged in the center of the burner in a penetrating mode, and micro-mixing combustion units, independent air bins and independent fuel gas bins are evenly arranged in the circumferential direction in a surrounding mode. A plurality of micro-mixing spray pipes are arranged in an air cooling sleeve of the micro-mixing combustion unit in the axial direction in an array mode, and fuel spray pipes are arranged on a second fixed disc in the axial direction in an array mode. The closed end of the fuel spray pipe extends into the micro-mixing spray pipe corresponding to the fuel spray pipe, and a fuel gas inlet is formed in the bottom of the fuel gas bin fixing cavity. After external air is introduced through an air circulation path from top to bottom to cool the head of the combustor, the heated air is mixed with fuel for combustion, and safe, efficient and low-emission application of natural gas large-proportion hydrogen-doped fuel is achieved.

The present application belongs to the technical field of superalloys. Disclosed is a preparation method for a nickel-based superalloy. The present application solves the problem of a nickel-based superalloy in the prior art making it difficult to satisfy the comprehensive requirements of a component for both a long alloy endurance life and a low crack propagation rate. The preparation method comprises: step 1: performing smelting, so as to obtain a cast ingot; step 2: subjecting the cast ingot to a homogenizing heat treatment, wherein the homogenizing heat treatment comprises two sections of heat preservation; and after the second-section heat preservation, performing furnace cooling to 1000+ / -10°C or below, and then performing discharging and air cooling; step 3: preparing a bar blank and a forging piece by means of forging; step 4: performing a solution treatment; and step 5: performing a stabilization and aging treatment, so as to obtain a nickel-based superalloy. The nickel-based superalloy prepared by means of the method of the present application has a high strength, good low-cycle fatigue performance, a low crack propagation rate and excellent comprehensive performance.

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.

The invention belongs to the field of overvoltage protection, and relates to an overvoltage stabilizing and protecting device which comprises a data acquisition operation module, a control logic module, a display module, an overvoltage protecting assembly and a high-voltage vacuum circuit breaker or an electric isolation handcart structure. The real-time monitoring and protection of the working state of the overvoltage protection assembly are realized; through the arrangement of the high-voltage circuit breaker or the electric isolation handcart, when the overvoltage protection assembly is detected to be abnormal, the connection between the overvoltage protection assembly and the high-voltage bus can be rapidly cut off, so that the system safety is ensured; the device integrates a transient fault recording function and can capture wave map data before and after a power frequency overvoltage fault of the system; the overvoltage protection assembly in the device adopts a geometric center air cooling heat dissipation mode, the fan is quick in starting response, the operating temperature of the overvoltage protection assembly is greatly reduced, the operating time of the overvoltage protection assembly can be effectively prolonged, and the device adopts an integrated modular structural design, so that the operation safety, the maintenance and the management are greatly facilitated.

The wind power generation equipment with the heat dissipation mechanism comprises a shell, a base is fixedly connected to the bottom of the inner wall of the shell, a power generator is fixedly connected to the top of the base, a round rod is fixedly connected to a driving shaft of the power generator, and a speed increasing box is fixedly connected to the end, away from the power generator, of the round rod; a wind wheel shaft is fixedly connected to the side, away from the round rod, of the speed increasing box, a hub is fixedly connected to the end, away from the speed increasing box, of the wind wheel shaft, blades are fixedly connected to the hub, a cooling device is fixedly connected to the top of the inner wall of the shell, air cooling devices are fixedly connected to the two sides of the inner wall of the shell, and rectangular holes are formed in the two sides of the shell. According to the wind power generation equipment with the heat dissipation mechanism, when a power generator works to generate heat, a water pump is started, cooling liquid in a cooling liquid box is pumped, the cooling liquid enters a cooling liquid pipe through a water outlet pipe and a folding pipe, and the cooling liquid conducts heat dissipation on the surface of the power generator.

The invention relates to the technical field of dry-type transformers, and discloses a high-heat-dissipation dry-type transformer which comprises a transformer body and fixing supports arranged at the upper end and the lower end of the transformer body, the transformer body comprises an iron core, a low-voltage winding, a heat dissipation cylinder and a high-voltage winding, and the heat dissipation cylinder comprises a lower air inlet cavity, an upper air outlet cavity and a heat dissipation cavity. The heat dissipation cavity comprises a first heat dissipation shell and a second heat dissipation shell, a first annular cavity is formed between the first heat dissipation shell and the second heat dissipation shell, a second annular cavity is formed between the second heat dissipation shell and the high-voltage winding, multiple sets of rotary air cooling assemblies are arranged in the second annular cavity in the circumferential direction, and multiple air guide blades are rotationally arranged at air outlets of the rotary air cooling assemblies; the rotary air cooling assembly is provided with a driving assembly for driving the air guide blades to swing up and down, so that the airflow direction of the rotary air cooling assembly can be changed, and balanced and rapid heat dissipation is achieved. According to the heat dissipation cylinder, the airflow channel of the first annular cavity is matched with the rotary air cooling assembly capable of changing the airflow direction of the second annular cavity for heat dissipation, and the heat dissipation uniformity is improved.

An air cooled resistor arrangement comprising a first elongated tube member forming a first air flow channel and a second elongated tube member forming a second air flow channel, wherein the first elongated tube member is at least partly housed inside the second elongated tube member. The air-cooled resistor arrangement further comprises an air dilution portion comprising at least one opening at which the first air flow channel is arranged in fluid communication with the second air flow channel.

The invention discloses a sleeve type annular cathode open type air cooling hydrogen fuel cell, and belongs to the technical field of hydrogen fuel cells. The air cooling module is vertically arranged on the rack, and the air cooling module comprises an inner cooling bin and an outer cooling bin coaxially arranged outside the inner cooling bin; an air cavity for conduction of an air source is defined between the inner cooling bin and the outer cooling bin; the hydrogen fuel cell stack is vertically arranged in the inner cooling bin; the inner cooling bin is a hollow rectangular shell with two open ends, and a through hole through which an air source is conducted to the hydrogen fuel cell stack is formed in the side wall in a penetrating manner; the outer cooling bin is a hollow rectangular shell with two open ends; the air suction module is vertically arranged in the middle of the inner cooling bin; and the air supply module is vertically arranged in the air cavity in a sliding mode, and the air supply module comprises an upper limiting unit and a lower limiting unit which are arranged in the air cavity in a sliding mode. According to the invention, efficient heat dissipation can be carried out on the hydrogen fuel cell stack, the heat dissipation section can be dynamically adjusted, and the heat dissipation efficiency is high.

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

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 utility model discloses a heat dissipation mechanism of an air cooling motor and the air cooling motor thereof, the heat dissipation mechanism is distributed on the outer circumference of a motor housing, and the heat dissipation mechanism is provided with fins which are distributed along the circumferential direction of the motor housing and are vertically arranged on the outer circumference of the motor housing. Wherein the fins are equally divided into N sections in the axial direction of the motor shell, and every two adjacent sections of fins are arranged in a staggered mode in the air; the included angle formed by every two adjacent fins in each section ranges from 20 degrees to 40 degrees. The included angle with a certain angle is formed between every two adjacent fins, the air flowing path can be changed, the time and distance for air to flow through the surfaces of the fins are prolonged, and therefore the heat exchange efficiency is improved. Meanwhile, two adjacent sections of fins are arranged in a staggered manner to the air, so that more interference and eddy current can be created in the airflow, the airflow can be more uniformly distributed on the whole heat dissipation mechanism, local hot spots are avoided, and the overall temperature uniformity of the air cooling motor is ensured.

The invention discloses a hybrid heat dissipation type power transformer, and relates to the technical field of power transformers. The dry-type transformer comprises a mounting box, a dry-type transformer body and a mixed heat dissipation system. A cooling fan and an air outlet barrel are arranged at the rear end of the mounting box, a fan rotating shaft is connected with a self-cleaning filter barrel cover, vibration dust removal of the filter barrel cover is achieved through cooperation of a spring, a brush plate and a knocking spherical surface, and dust enters a detachable collecting box through a collecting opening. Profiling cooling fins are arranged in the mounting box and tightly attached to the transformer body, liquid cooling heat dissipation is carried out on the outer portion of the mounting box through a C-shaped cooling fin assembly, and cooling liquid is circularly cooled through the cooling box. The box door is provided with a dustproof air inlet and a rain shielding structure. By combining the air cooling and liquid cooling dual heat dissipation modes, the rotating shaft drives the brush plate to be matched with the filter cartridge cover supported by the spring, dust on the filter screen is automatically cleaned, blockage is avoided, continuous and efficient work of the heat dissipation fan is guaranteed, the internal temperature of the transformer is effectively reduced, equipment damage caused by heat accumulation is avoided, and the service life is remarkably prolonged.

The invention provides a flexible adjustable mixed line machine tool spindle cooling system and method, and belongs to the technical field of machine manufacturing. The system comprises a main shaft cooling unit, a dry type air cooling unit, a circulating cooling water unit and a cutting fluid cooling unit, integrates four cooling modes of traditional cutting fluid, minimal quantity lubrication, dry type air cooling and circulating water cooling, and is provided with temperature, flow, cutting force and liquid level monitoring instruments as well as a regulating valve, a switching valve, power equipment and the like which are correspondingly interlocked. By monitoring machine tool machining states such as spindle temperature and cutting force in real time and dynamically optimizing a cooling strategy, flexible switching among four modes and parameter regulation and control are achieved, so that machining heat damage is reduced, the service life of a tool is prolonged, the machining efficiency is improved, meanwhile, cooling medium consumption is reduced, and the efficient, low-cost, low-carbon and safe machining process is achieved.

The utility model discloses a high-efficiency air-cooled radiator, which is provided with a radiating plate and a plurality of fins arranged at the bottom of the radiating plate, the plurality of fins are distributed in parallel along the length direction of the radiating plate to form a radiating fin group, and a fan is arranged at the bottom of the radiating plate along the direction of the fins; air guide windows are formed in the heat dissipation plate in a penetrating mode and distributed between the draught fan and the fins, and beveled corners are arranged on the sides, facing the heating devices, of the tops of the air guide windows. Air flow generated by the fan passes through the air guide window and then forms turbulent flow to be blown to the heating device. According to the utility model, the air guide window is arranged on the heat dissipation plate, air flow can be directly blown to a heating device from the air guide window, secondary heat conduction of the heat dissipation plate is reduced, the air flow is in a turbulent flow shape, air molecules move irregularly, and heat exchange is sufficient, so that heat exchange is greatly enhanced, rapid heat transfer can be better realized, and the service life of the heat dissipation plate is prolonged. Therefore, the heat dissipation effect is improved.

The invention discloses a high-power stadium LED lighting ceiling lamp with high heat dissipation performance, and relates to the technical field of LED lighting ceiling lamps. The LED lamp comprises a lamp shell and an LED lamp panel, a heat insulation plate, a circulating pipe and a cooling fan which are sequentially distributed are arranged in the lamp shell, a heat conduction barrel is arranged on the heat insulation plate, the LED lamp panel is arranged on the heat conduction barrel, a plurality of heat conduction fins are arranged on the heat conduction barrel, and an air inlet, an exhaust pipe and a micro water pump are arranged on the lamp shell. The input end of the micro water pump communicates with the heat conduction cylinder through a pipeline, and a plurality of cooling fins are arranged on the circulating pipe. According to the LED lamp panel, a passive heat dissipation mode (for example, natural heat diffusion only depends on cooling fins or radiators) which is commonly depended on in the prior art is abandoned, an air cooling system and a liquid cooling system are innovatively and efficiently coordinated to work, active multi-stage heat dissipation of the LED lamp panel is achieved, and compared with a traditional passive heat dissipation scheme, the LED lamp panel has the advantages of being high in heat dissipation efficiency and good in heat dissipation effect. The internal temperature of the lamp can be obviously prevented from rising, and the heat dissipation efficiency is greatly improved.

The present invention discloses a photovoltaic step-up transformer with air-cooling heat dissipation and its auxiliary equipment, including a transformer protection box. A number of groups of heat dissipation blocks are symmetrically installed on both sides of the transformer protection box, and heat exchange windows are penetrated and opened between every two adjacent groups of heat dissipation blocks corresponding to each side of the transformer protection box. By setting the air box to work, external air is pumped into the heat dissipation plate, and the heat exchange copper tube extending into the heat dissipation plate is used to accelerate the cooling of the heat dissipation plate. And during the air exchange process, gas is discharged to the outside through a one-way air valve, so that the air flow inside the heat dissipation block is accelerated, which can better improve the heat dissipation effect of the transformer protection box. At the same time, because the heat dissipation plate is located between two adjacent voltage transformation structures and the headquarters, the temperature between each group of voltage transformation structures can be quickly reduced by the incoming heat dissipation plate, thereby better completing the cooling inside the transformer protection box, completing the protection of the voltage transformation structure, and reducing energy consumption at the same time.

The invention discloses an electric engine assembly integral forming process based on precision integral casting, which comprises the following steps: designing a split type precision mold through computer aided design software, and carrying out nitriding treatment to improve the performance; selecting a specific aluminum alloy raw material, performing vacuum induction melting and refining, and injecting the aluminum alloy raw material into a preheated and sprayed mold cavity in a low-pressure casting manner; and demolding after air cooling and water cooling are combined, then after-treatment procedures such as deburring and heat treatment are conducted, and finally detection and assembly are conducted. A conformal cooling water channel design and an ultrasonic-assisted smelting technology are adopted in the process innovation, and the casting process is monitored in real time. According to the process, manufacturing procedures are reduced, compared with a traditional mode, the production efficiency is improved by 30%-50%, the cost is reduced by 20%-30%, the assembling problem is effectively avoided, the sealing performance and reliability of the electric engine are improved, the service life of the electric engine is prolonged, high integration is achieved, and the modern industrial requirement is met.

The invention discloses a fuel cell heat and humidity integrated management system and an evaporation phase change cooling method thereof, and belongs to the technical field of fuel cell heat management. The system comprises an air cooling and humidifying module, a heat dissipation, evaporation and phase change module and a water recovery and distribution module. The air cooling and humidifying module distributes compressed air to an ultrasonic atomizing nozzle to be mixed with atomized water, and cooling and humidifying of main path air are achieved. The heat dissipation evaporation phase change module sprays atomized water to the surfaces of ATS radiator fins, and heat dissipation is enhanced through evaporation phase change. And the water recovery and distribution module recovers moisture in wet air at an electric pile outlet through condensation and intelligently distributes the moisture to the two atomization systems. A traditional intercooler and a traditional membrane humidifier are omitted, the air flow resistance is reduced by 15-20%, the heat dissipation efficiency is improved by 10% or above, the weight of the system is reduced by 8%, closed-loop utilization of reaction water is achieved, and the system is particularly suitable for fuel cell systems of mobile carriers such as vehicles and unmanned aerial vehicles.

The invention relates to the technical field of manufacturing of engineering machinery parts, and discloses an engineering machinery driving wheel made of a medium carbon alloy cast steel material. The invention also discloses a preparation process of the engineering machinery driving wheel material, which comprises the following steps: S1, casting treatment: melting the medium carbon alloy steel material, and casting into a driving wheel blank; s2, normalizing heat treatment: carrying out normalizing heat treatment on the driving wheel blank; s3, rough machining treatment; s4, quenching treatment: carrying out induction quenching treatment; and S5, finish machining treatment. The synergistic effect of alloy elements in a medium carbon alloy cast steel material is combined with an optimized air cooling process, so that the cast steel is normalized to obtain a uniform structure which mainly contains superfine pearlite and contains extremely little ferrite, the matrix hardness is stable, and the requirement of a high-performance driving wheel is completely met; after the process route is improved, tempering and shot blasting and flaw detection procedures after tempering are canceled; the technological process is greatly shortened, material turnover is reduced, and the production efficiency is improved.

The utility model relates to an efficient heat dissipation type motor, which comprises a stator and a main shaft, the outer end of the stator is fixedly connected with a heat dissipation shell, the outer end of the heat dissipation shell is fixedly connected with a plurality of heat dissipation fins which are distributed in a circumferential array around the axis of the stator, and the outer end of the heat dissipation shell is fixedly connected with a front end cover through screws. A heat absorption cavity is formed in the front end cover, a plurality of hollow heat absorption rings are fixedly connected to the end, close to the stator, of the front end cover, the heat absorption cavity and the heat absorption rings are filled with phase change materials, an overflowing ring is fixedly connected to the end, away from the stator, of the front end cover, and a plurality of phase change circulating pipes are fixedly connected to the outer end of the front end cover. According to the utility model, the collaborative design of multiple heat dissipation mechanisms is adopted, the heat dissipation efficiency of the motor is significantly improved through the organic combination of phase change material heat storage, forced air cooling and heat conduction and dissipation, and the technical problem of insufficient heat dissipation of a high-power motor is effectively solved.

The invention discloses a reactor core of an air-cooled fuel cell stack, the stack and a thermal management design method of the stack, and belongs to the technical field of fuel cells. The reactor core of the air-cooled fuel cell stack comprises a plurality of bipolar plates and a plurality of membrane electrodes which are sequentially stacked, the bipolar plate is formed by combining an anode plate and a cathode plate, a hydrogen runner is arranged on the anode surface, far away from the cathode plate, of the anode plate, and an air runner is arranged on the cathode surface, far away from the anode plate, of the cathode plate; and an air cooling runner is arranged between the anode plate and the cathode plate. The air-cooling fuel cell stack comprises the stack core, and the opening direction of the air-cooling flow channel on the stack core is opposite to the air supply direction of an air-cooling fan. By adopting the air-cooled fuel cell stack, the problems of difficulty in balancing oxygen and membrane water content, environmental sensitivity, unstable performance and the like of a cathode open type air-cooled fuel cell polar plate structure can be solved, the stack performance is improved, and the service life is prolonged.

The utility model discloses a novel efficient energy storage air cooling air conditioning system which comprises a compressor, a three-phase heat exchanger I, a three-phase heat exchanger II, an outer fan, an inner fan, a capillary tube, a water pump, an expansion kettle, a drying tank and an air bellow. A first cavity and a second cavity which are independent are formed in the air bellow, an inner fan and a three-phase heat exchanger II are arranged in the first cavity, and an outer fan and a three-phase heat exchanger I are arranged in the first cavity; on the basis, a refrigerant circulation system and a cooling water circulation system are constructed. According to the air cooling system, the refrigerant circulation system or the cooling water circulation system can be selected to work in time according to the temperature of the external environment and the return air temperature of the air bellow, so that the heat dissipation requirement of the air cooling system under the condition that the environment temperature is high can be met, and meanwhile the use frequency of the compressor is reduced when the environment temperature is low; power consumption is reduced and system efficiency is improved.