1002 results about "Ice formation" patented technology

The invention relates to an ice crystal evaporator and an ice crystal water cooling device producing from the same, belonging to the technical field of refrigeration. The ice crystal evaporator is characterized in that a liquid inlet channel is formed by an evaporator tube, a liquid inlet and a liquid outlet in a tubular casing; and the outer channel of the evaporator tube of the tubular casing is divided into more than one S-shaped channel forming a water return channel through a water inlet of a water divider and a water outlet of a water collector. The ice crystal water cooling device is characterized in that the return air inlet of the ice crystal evaporator is communicated with a compressor, a condenser, a liquid feeding valve, a dry filter, a liquid feeding electromagnetic valve anda thermostatic expansion valve in sequence, and then is communicated with the liquid inlet of the ice crystal evaporator; a cooling water inlet / outlet of the condenser is connected with a cooling tower in series; and a water inlet / outlet of the ice crystal evaporator is communicated with a water circulating pump and an ice crystal energy storage tank in series. The invention has the advantages ofhigh cooling efficiency, no icing and low cooling temperature and is suitable for production of energy storage central air-conditioning, marine fishing, seafood processing, fruit, vegetable or meat processing, and the like; the cooled medium is municipal water.

The invention relates to the technical field of new energy, in particular to a fan blade composite deicing system and method.The fan blade composite deicing system comprises a sensing layer, a decision-making layer, an execution layer and a feedback layer, and the decision-making layer comprises a graph neural network ice type recognition module, a CFD-icing coupling simulation module, a health management module and an energy consumption scheduling algorithm unit; the execution layer comprises a control unit and an execution unit, the control unit comprises a dynamic partition heating controller and a self-adaptive vibration controller, and the execution unit comprises an electric heating system and a vibration deicing system; compared with the prior art that a single deicing mode is usually adopted, and the adaptability to different ice type physical characteristics is poor, the scheme adopts a differential execution strategy, and partition electric heating control is carried out on different chord length areas of the blade based on the ice type recognition result; and high-frequency piezoelectric standing wave vibration is adopted for glaze ice, low-frequency eccentric wheel vibration is adopted for glaze ice, and the beneficial effects that the deicing efficiency is remarkably improved, invalid energy consumption is reduced, and damage to blades is reduced are achieved.

The invention relates to the technical field of tunnel disaster identification, in particular to a tunnel portal icing disaster identification and prediction method based on a multi-modal data fusion technology. According to the technical scheme, the method comprises the steps of multi-source data acquisition, heterogeneous data processing, feature level fusion, disaster recognition, space-time prediction and dynamic early warning. According to the invention, a multi-modal sensor is deployed to collect tunnel portal temperature, space structure and environmental parameters, intelligent processing and multi-stage feature fusion are carried out, ice layer distribution identification, icing trend detection and time-space prediction are realized by using a deep network, an ice melting device is dynamically activated in combination with a graded early warning mechanism, and vehicle early warning is linked. A sensing, analysis, prediction, disposal and calibration closed loop is formed, the accuracy of ice coagulation disaster detection, the prospective performance of prediction and the intelligence of disposal are remarkably improved, and the tunnel traffic safety and the long-term robustness of the system are guaranteed.

The invention relates to the technical field of fan blade deicing, and discloses an intelligent temperature control type fan blade electric heating deicing control system and method, and the system comprises a meteorological sensing module which is used for collecting the environment temperature, humidity, wind speed and rainfall type; the blade state monitoring module is used for acquiring blade surface temperature distribution and ice layer thickness data; the dynamic decision-making module is used for generating a partition heating instruction based on the data of the weather sensing module and the blade state monitoring module; the temperature control execution module is used for converting the instruction into a gradient signal; the heating array module is used for executing electric heating deicing operation in the blade surface subareas; and the energy coordination module is used for dynamically constraining the total power of the system. The meteorological sensing module and the blade state monitoring module are integrated through the system, real-time collection and fusion of multi-source data of blade surrounding environment parameters and the thickness of an ice layer are achieved through the design, comprehensiveness and accuracy of icing monitoring are improved, a reliable basis is provided for dynamic decision making, and therefore the response capacity and early warning precision of the system to icing risks are improved.

The invention belongs to the technical field of cell cryopreservation, and relates to a cryopreservation method based on ultrasonic ice planting. In the method, the nucleation temperature of ice planting is less than-9 DEG C, and the cooling rate from nucleation to icing is less than 5 DEG C / min. Compared with the prior art, the method has the advantages that the time required for cryopreservation of the cells is remarkably shortened, meanwhile, damage to the cells caused by ice crystals generated in the cooling process is reduced, and the problem that an existing cell cryopreservation cooling method cannot meet the nucleation and freezing uniformity of a cell solution in the cooling process is solved.

The invention discloses an existing wind power blade electrothermal film deicing control method based on big data, and relates to the technical field of wind turbine generator operation control and ice prevention and removal. Frost ice / glaze ice probability output by an ice type discrimination model does not only give an alarm any more, but is directly converted into an increase / decrease coefficient constrained by boundary and monotonicity; energy can be fully put in a glaze ice scene, and overheating and over-consumption can be avoided in a frost ice scene; according to the method, the change trend of wind speed, temperature and relative humidity is introduced as modulation factors, the working condition of forming / turning glaze ice is responded in advance, and insufficient deicing caused by static threshold hysteresis is reduced; according to power deviation correction, a unit wind speed-power curve serves as a reference, a dead zone, segmented gain and accumulative saturation structure is adopted, on the premise of not depending on an external icing sensor, extrinsic performance of pneumatic degradation is closed into controlled quantity, sensitivity and stability are considered, and start-stop oscillation and duration drift are reduced.

The invention discloses an environment-friendly flame-retardant medium-voltage cable, and relates to the technical field of cables, the outer side of an inner conductor is provided with a flame-retardant protection assembly, the flame-retardant protection assembly comprises flame-retardant filling bodies, the middle parts of the opposite side surfaces of the adjacent flame-retardant filling bodies are provided with supporting grooves, and arc-shaped spring plates are adhered to the interiors of the supporting grooves. The outer side of the cable is extruded and collided, the impact force is attenuated layer by layer, the situation that the cable is damaged due to collision and impact is reduced, when the outer side of the cable is frozen, the heating wire emits heat, and the cable is prevented from being damaged. When the cable is deiced, the inflatable strip outside the insulating middle layer is uniformly heated, the outer insulating layer is pushed to bulge, and the ice layer outside is jacked open, so that the ice layer is broken and falls off, and compared with the conventional deicing method which only depends on heating, the energy consumption is lower, the cable is environment-friendly and energy-saving, the deicing effect is better, and the cable is more favorably protected.

The invention relates to the technical field of ice and snow environment simulation, and discloses an ice and snow environment simulation test method based on multi-field coupling. The method comprises the following steps: collecting a dynamic multi-field data set in a target ice and snow environment, wherein the dynamic multi-field data set covers a periodic temperature change sequence, a relative humidity fluctuation sequence and surface ice layer thickness real-time monitoring data; carrying out multi-physics field coupling numerical simulation processing to generate coupling field distribution characteristics including an axial heat conduction coefficient gradient, a radial fluid velocity cumulant and a tangential ice layer stress fluctuation coefficient; calling a pre-configured ice and snow growth simulation model to execute ice layer evolution analysis to obtain an ice layer growth rate prediction value and a high-risk icing area position identifier; performing environment dynamic compensation correction on the ice layer growth rate prediction value by using the correlation characteristic of the relative humidity fluctuation sequence and the material heat capacity attribute; based on the high-risk icing area position identification, scientific guidance is provided for related protection in the ice and snow environment.

The invention discloses a tunnel dew formation and icing rapid monitoring method and system based on a space-time phase change cooperation mechanism, and relates to the technical field of tunnel engineering safety monitoring and freeze injury prevention and control. Establishing a tunnel geometric model and a heat-humidity-turbulence multi-field coupling physical model; synchronously acquiring heat and humidity physical property parameters and outdoor hourly meteorological parameters; taking the outdoor hourly meteorological parameters as Dirichlet boundary conditions and initial conditions of a heat-humidity-turbulence multi-field coupling physical model; determining a heat and humidity exchange coupling process of the tunnel wall surface and the internal environment, and defining heat and humidity transfer parameters under an unsteady state boundary; performing discretization processing on the tunnel geometric model by adopting a grid division strategy; by setting a dew point temperature threshold value and an icing temperature threshold value, a condensation risk area is judged, dynamic changes of the thickness of an ice layer are quantified, and monitoring of tunnel condensation and icing is achieved. The method can effectively reflect the distribution rule of multiple physical fields on the surface and in the tunnel in any time, accurately judge the risk area and quantify the thickness of the ice layer.

The invention relates to the technical field of anti-icing, in particular to a photo-thermal phase change energy storage super-hydrophobic all-weather anti-icing composite coating and a preparation method thereof. Comprising the following steps: S1, preparing a phase change microcapsule of chitosan coated paraffin through a single coacervation method; s2, modifying a carbon nano tube, and adding the modified carbon nano tube into the suspension of the phase change microcapsule to form a composite microcapsule; and S3, uniformly mixing the composite microcapsule with organic silicon. Compared with the prior art, by combining the photo-thermal and super-hydrophobic characteristics and the energy storage effect of the phase change microcapsules, the effect of effectively delaying icing can be achieved, the ice resistance and deicing efficiency is high, the photo-thermal conversion performance is good, the super-hydrophobic performance is good, and surface ice prevention and deicing under the extreme weather condition can be achieved; and the coating can keep effective anti-icing and deicing functions under low-temperature and high-humidity conditions. 2, the nanoparticles are grafted to the surface of the chitosan phase change microcapsule to form an organic-inorganic composite phase change microcapsule, and the flexibility of organic substances and the stability of inorganic materials are combined;

The invention relates to the technical field of road ice melting, and discloses a road ice melting implementation system and method. The system comprises a meteorological monitoring platform, a snow-melting agent spraying platform and a management and control platform, the method comprises the following steps: firstly, collecting meteorological data and monitoring a road surface state to obtain an initial road ice melting data set, and then carrying out anomaly detection and filling missing data; establishing a road ice melting prediction model based on the neural network, predicting whether the road is iced or not, and outputting a road icing result; then ice melting work is carried out, an enhanced hawk optimization algorithm is introduced to optimize spraying parameters in the ice melting work, and a road ice melting implementation strategy is generated; and finally, adjusting a road ice melting implementation strategy, and establishing a snow melting environment coupling model and an alarm mechanism. By analyzing and processing the road ice melting data, the purpose of implementing road ice melting is achieved, and the method is objective and accurate.

The invention discloses a preparation method of a composite micro-groove super-hydrophobic low-ice-adhesion photo-thermal film. The preparation method comprises the following steps: (1) constructing a low-elasticity-modulus photo-thermal composite sponge substrate through a solvothermal method; (2) uniformly coating the surface of a substrate with a polydimethylsiloxane (PDMS) precursor solution by adopting an aerosol-assisted deposition technology, and carrying out thermocuring to form a functional composite interface layer; and (3) constructing a multi-stage scallop surface-imitating micro-nano groove composite structure on the surface of the interface layer by using a femtosecond laser micro-nano processing technology. The prepared film has super-hydrophobicity, the surface of the film is in a Cassie-Baxter wetting state with a 164-degree contact angle and a 1-degree rolling angle, and the film has a surface self-cleaning function. Under the icing condition, the adhesion strength of an ice layer of the system is obviously reduced to 2.57 kPa, the static delay icing time is effectively prolonged to 1587 s, and the system has the photo-thermal response characteristic and can realize rapid icing ablation under the standard solar irradiance; the preparation method has the characteristics of high process controllability, environment friendliness and the like, and is suitable for large-scale continuous production.

The invention relates to the technical field of constant-temperature control, in particular to a constant-temperature quick-cooling control method for 0.5-degree outlet water without freezing and containing low-temperature secondary refrigerants. The constant-temperature quick-cooling control method comprises the following steps that S1, the real-time outlet water temperature, target temperature and environment temperature sampling are obtained, and the difference between the target temperature and the real-time outlet water temperature is analyzed; and dividing three temperature control stages for the 0.5 DEG C effluent cooling condition according to the difference, and marking the corresponding section as a target cooling stage to obtain a temperature control stage identifier. According to the invention, through the real-time monitoring and the subdivision management of the temperature control stage, the response speed and accuracy of temperature adjustment are improved, the current temperature change can be reflected in real time, the future adjustment demand can be analyzed and predicted through the prospective temperature trend, the adjustment is more timely, and the adjustment efficiency is improved. The staged temperature management allows precise temperature regulation and control according to the actual cooling requirements, and especially effectively prevents ice crystals from being generated in the rapid cooling process.

The invention relates to the technical field of low-temperature gasification and heat management, and discloses an ice layer monitoring prediction and self-adaptive control device for a liquid hydrogen air temperature type gasifier. A data acquisition unit of the device acquires the running state of the gasifier and multi-source sensor data of an external environment; the weather prediction unit obtains weather change information in a future period and calculates a comprehensive influence coefficient of weather on the operation state of the gasifier; the data fusion and processing unit calculates an ice layer thickness correction value of each monitoring node according to the data of the multi-source sensor; the threshold value judgment unit judges the icing state of the node, and after the node is judged to be in the icing state, a judgment index representing the icing risk and the ice layer development trend is calculated; and the control response unit switches a deicing mode and executes a corresponding deicing control strategy according to the change state of the judgment index, and switches a high-energy-consumption deicing mode, a low-energy-consumption deicing mode and an observation mode. The deicing energy consumption of the gasifier is reduced, and the operation stability and the heat efficiency are improved.

The invention discloses a fan blade detecting and deicing system and method. The fan blade detecting and deicing system comprises a detecting unit, a deicing unit and a control unit. The detection unit comprises an icing detection assembly, an icing thickness detector and a temperature sensor are arranged in the icing detection assembly, the icing thickness detector detects icing thickness data of the blade surface in real time, and the temperature sensor detects temperature data of the fan blade surface in real time; the deicing unit comprises an electric heating film which is at least laid on the front edge of the blade in the length direction of the blade. And the control unit comprehensively analyzes the icing thickness and temperature change condition corresponding to the whole blade according to the icing thickness data and temperature data of the blade surface, and independently triggers and controls the heating state of each blade deicing unit based on the comprehensive analysis result. According to the fan blade detecting and deicing system and method, the precise monitoring function, the intelligent deicing strategy and stable and safe operation are integrated, and the wide application and popularization value is achieved.

According to the mixed phase ice crystal particle ground generation and icing experiment device and method, a water spray head generates a water drop particle swarm, an ice crystal particle generation device generates an ice crystal particle swarm, the water drop particle swarm and the ice crystal particle swarm are mixed in a controllable proportion to form an ice-water mixed phase, and then a mixed phase icing experiment can be achieved. The experimental device comprises an air duct system, a water drop atomization generation system, an ice crystal particle generation system, an impact surface system and a measurement system, the air duct system comprises an axial flow fan, an air duct and an experiment cavity; the impact surface system comprises an impact surface assembly, the water drop atomization generation system and the ice crystal particle generation system are used for providing water drops and ice crystals respectively, the axial flow fan provides high-speed airflow, the water drops and the ice crystals are conveyed through the air duct to impact the impact surface assembly at a high speed, and an impact icing experiment of a mixed phase is achieved; the measuring system is used for measuring the air speed, temperature and humidity in the air duct and measuring the thickness and temperature of an ice layer of the impact surface assembly.

The present invention relates to the field of detection equipment technology, solving the technical problem in the prior art that sensors are still easily lost in severe icing conditions. In particular, it relates to an anti-icing sensor with a V-shaped concave-convex groove on the windward side. A temperature measuring end is provided on the side of the sensor housing away from the mounting seat. The temperature measuring end is provided with an anti-icing structure. The sensitive element is connected to the sensor housing and is located on the inner side or leeward side of the temperature measuring end. The cross-section of the windward end parallel to the airflow direction is an isosceles triangle. The first vertex of the isosceles triangle of the windward end faces the direction of the incoming flow. The groove at the front edge of the windward end has a V-shaped cross-section. As the flow direction extends, the groove width increases with a linear gradient and the groove depth decreases with a linear gradient, forming a continuous three-dimensional topological surface. The present invention uses the different affinity and repellency surface properties of the concave-convex steps to break up water droplets and even water films, accelerate the flow of water droplets in the groove, reduce the overall ice adhesion of the windward end surface by nearly half, and greatly reduce the damage of ice to downstream components.

The invention relates to a four-degree-of-freedom icing adhesion strength testing device and a testing method. The testing device comprises a fixed platform, and a refrigerating and freezing module and a four-degree-of-freedom motion testing module which are arranged on the fixed platform. The fixed platform comprises a flat plate and a height-adjustable telescopic rod. The refrigerating and freezing module comprises a refrigerating platform, a refrigerating plate inclination angle assembly and at least one ice making mold. The four-degree-of-freedom motion test module comprises a Z-axis moving sliding table, a Y-axis rotating inclination angle assembly, an X-axis moving sliding table, a Y-axis moving sliding table, a pull and push dynamometer clamp and a pull and push dynamometer; the pull and push dynamometer can drive ice blocks in the ice making mold to be separated from a test sample under the driving of the Z-axis moving sliding table, the Y-axis rotating dip angle assembly, the X-axis moving sliding table and the Y-axis moving sliding table. Compared with the prior art, the device has the advantages of high experiment efficiency, wide measurement range, adjustable experiment parameters, diversified measurement modes and the like.

The invention discloses a super-amphiphobic flame-retardant ice-resistant coating as well as a preparation method and application of the super-amphiphobic flame-retardant ice-resistant coating with a multi-layer surface coating, and belongs to the technical field of functional materials of electrical equipment. The coating comprises micron-sized ammonium polyphosphate, a nano-sized inorganic filler, fluorinated alkyl silane and a fluorine surfactant, the super-amphiphobic, flame-retardant and ice-resistant coating is constructed through multi-scale components, and the super-amphiphobic, flame-retardant and ice-resistant coating is spontaneously assembled on the surface of a base material in the coating process to form a coating surface with a molecular nanometer, micrometer and macroscopic multi-level structure; the coating shows good super-amphiphobic characteristics, the contact angle of the structure surface after long-time placement under the room temperature condition is basically kept unchanged, the contact angle to water and oil is still larger than 150 degrees after multiple times of cyclic friction and washing, meanwhile, the coating has excellent flame retardance, ice resistance and wear resistance, the icing delay time is greatly prolonged, and the coating has the good anti-freezing effect. And no open fire is generated when the cable is in contact with an external fire source, so that the cable has important engineering application value for electric power facilities under harsh environmental conditions.

The invention discloses an icing monitoring method and system for a corner reflector deployed based on an unmanned aerial vehicle, and relates to the technical field of environment monitoring, and the method comprises the steps: deploying a corner reflector network, collecting radar cross-section characteristics and environment parameters to generate a data packet, and carrying out the icing monitoring based on the generated data packet; calculating a signal-to-clutter ratio, obtaining a standard deviation of target positioning and phase estimation by using a Cramer-Rao lower bound method, generating a dynamic weight by using the standard deviation, obtaining a corner reflector icing thickness estimation value through data fusion, and generating an optimized signal-to-clutter ratio based on the icing thickness estimation value; and carrying out cooperative judgment by utilizing the generated optimized signal-to-clutter ratio and combining the icing thickness and the attitude deviation, triggering combined adjustment based on a judgment result, and after the combined adjustment is triggered, obtaining the SAR image again and carrying out main and auxiliary image registration and interference pair optimization. According to the invention, the sensing precision and the monitoring robustness of the unmanned aerial vehicle on the state of the corner reflector in an icing environment are improved.

The utility model relates to the field of water conservancy equipment, and discloses intelligent icing protection equipment for a water conservancy gate, the intelligent icing protection equipment comprises a water conservancy gate frame, a gate plate is arranged in the water conservancy gate frame, two limiting grooves are symmetrically formed in the inner side wall of the water conservancy gate frame, and the side of the gate plate extends into the limiting grooves; an installation plate is fixedly installed on one side of the flashboard, an electric heating piece is started to heat the flashboard, the flashboard is prevented from being frozen to the maximum degree, and if the external temperature continuously drops and the front side of the flashboard is still frozen, an electric push rod will push an ice breaking base and an ice breaking rod to move downwards; according to the device, the intelligent anti-icing effect of the flashboard can be achieved, ice blocks formed in front of the flashboard can be broken through vertical movement of the ice breaking base and the ice breaking rod, and stable operation and normal function exertion of water conservancy facilities in the low-temperature environment are guaranteed.

The invention relates to a low-ice-adhesion super-hydrophobic anti-icing coating as well as a preparation method and application thereof. Single-end amino fluorosilicone oil is grafted to the surface of an aldehyde group functionalized metal organic framework material through an amino-aldehyde group condensation reaction to obtain a hydrophobically modified metal organic framework material, the hydrophobically modified metal organic framework material is compounded with a synthesized fluorinated acrylate copolymer, and the coating is prepared through ultrasonic dispersion and spraying curing processes. According to the prepared low-ice-adhesion super-hydrophobic anti-icing coating, through the synergistic effect of fluorosilane grafting modification and a micro-nano structure, the excellent performance that the static water contact angle is larger than or equal to 160 degrees, the rolling angle is smaller than or equal to 2 degrees, and the ice adhesion strength is smaller than or equal to 20 kPa is achieved. Compared with a traditional anti-icing coating, a metal organic framework material functional modification strategy is adopted, the ice adhesion force is remarkably reduced while the mechanical stability of the coating is kept, and uniform film forming on the surfaces of base materials such as aluminum wires can be achieved through the spraying technology. The coating is suitable for anti-icing protection of the aluminum conductor of the power transmission line, and has the characteristics of long-acting icing resistance and low ice adhesion.

The invention relates to the technical field of medical instruments, and provides an organ low-temperature perfusion system and a perfusion device.The organ low-temperature perfusion system comprises an organ bin and a perfusion assembly; the perfusion assembly is used for providing perfusion power and perfusing perfusion liquid into the blood vessel of the biological organ through the perfusion channel; the perfusion assembly comprises an oscillation generator, and the oscillation generator is used for applying alternating oscillation to perfusate, so that the perfusate flows in the perfusion channel and the blood vessel of the biological organ in a periodic oscillation state; a boundary layer can be broken by oscillating fluid flow, so that perfusate is more tightly attached to the surface of an organ, and the heat transfer efficiency is improved; the ice crystal structure which is being formed can be damaged, and the icing process is slowed down; a dead zone of fluid in an organ can be reduced, the uniformity of perfusate is ensured, the local temperature gradient is reduced, and tissue damage is reduced; in addition, the oscillating flow of the perfusate can more accurately simulate the physiological conditions in a real living body, and an environment closer to the interior of the living body is provided.

The invention discloses an ice rink re-paving ice layer thickness prediction method, system and equipment based on digital twinning, and relates to the technical field of ice rink ice surface thickness. The method comprises the following steps: step 1, constructing a digital twinborn model of the re-paved ice surface of the ice pouring vehicle through COMSOL numerical simulation software, and mapping and fusing the digital twinborn model of the re-paved ice surface of the ice pouring vehicle and real-time environmental data to generate a dynamic digital twinborn body; 2, real-time operation parameters of the ice pouring vehicle are input into the dynamic digital twin body, operation is simulated, and the simulated icing thickness is output; and 3, inputting the simulated icing thickness, the real-time operation parameters of the ice pouring vehicle and the real-time environment data into the trained machine learning model to obtain the thickness of the re-laid ice layer. According to the method, the icing thickness of the re-paved ice surface of the ice pouring vehicle corresponds to the twin model through the digital twin technology, so that the re-paved ice layer thickness prediction is more accurate and comprehensive, the re-paved ice layer thickness prediction is realized, the risk of different ice layer thicknesses is reduced, the waste of water resources is avoided, and the energy consumption is saved.

The invention discloses an anti-freezing device for a winter hydrological monitoring system in a severe cold area, and the anti-freezing device comprises water disturbance equipment which is provided with a water outlet located in water in a hydrological monitoring cylinder. And the water disturbance equipment continuously conveys water to water in the hydrological monitoring cylinder through the water outlet so as to disturb the water in the hydrological monitoring cylinder. According to the device, disturbance equipment, such as a submersible pump or a centrifugal pump, is integrated in a hydrological monitoring cylinder through an integrated frame; the disturbance equipment goes deep into a certain water level and then continuously disturbs a water body so as to achieve the anti-icing effect.

The invention relates to the technical field of wind power generation, in particular to a blade deicing device and method and a wind generating set, and the blade deicing device comprises heating modules which are arranged on the front edge, the rear edge, the pressure surface and the suction surface of a blade and used for heating an ice layer on the surface of the blade; the monitoring module is mounted on the surface of the blade and is configured to monitor the ice layer thickness, the environment temperature and the humidity of the surface of the blade; the control module is electrically connected with the heating module and the monitoring module, and the control module is configured to start the heating module to deice if the thickness of the ice layer is larger than or equal to a first threshold value and the environment temperature and humidity meet the icing condition. The icing state of the blade can be intelligently monitored, efficient deicing is achieved, and energy conservation and environmental protection are achieved.

The invention relates to the technical field of cooling towers, in particular to a novel water-saving open type cooling tower suitable for northern areas. A tower body; the heat exchange demisting and water collecting device, the wire mesh demisting device, the water collector, the hot water distributing device, the cold water supplementing and spraying device and the filler cooling device are sequentially arranged on the inner wall of the tower body in the vertical direction; the anti-freezing device is arranged at the top of the pouring cold water pool; and the PLC is arranged at the top of the pouring cold water pool. The cooling tower can achieve efficient and rapid cooling, and the cooling speed is increased by 20%-30% compared with a traditional tower through filler layered heat exchange, cold water replenishing opposite flushing and waste heat recovery; the freezing problem in winter in northern areas can be solved, freezing is blocked from the source, ice is actively melted, and operation is guaranteed; the drifting rate is reduced by more than 60% through three-stage demisting water collection, and the condensed water is completely recovered; low-cost transformation is achieved, maintenance is convenient, energy consumption is reduced by 30%, intelligent regulation and control can be achieved, industrial automation is adapted, and high efficiency, water saving, economy and stability are considered.

The application discloses an aero-engine rotating blade icing prediction method based on machine learning, relates to multiple technical fields of computational fluid dynamics, heat and mass transfer, multiphase flow simulation and artificial intelligence, and is used for quickly and accurately predicting icing forms of aero-engine fan or compressor rotating blade surfaces under different inflow conditions and blade type parameters. The method firstly constructs a parameterized model of the rotating blade, generates multiple sets of blade type and condition combinations in combination with orthogonal experimental design, and constructs a multi-source icing database through simulation and experiment; then, an icing prediction model is constructed based on a multilayer perception machine and a deconvolution neural network, and corresponding ice shape images can be output after inflow parameters and blade type parameters are input; finally, model optimization is realized through training and verification, and the recognition and fitting capacity for real ice shapes is improved. The application can effectively improve the efficiency and precision of icing prediction, and provides technical support for anti-icing design and safe operation of the aero-engine.

The invention relates to the technical field of aviation equipment, and discloses a wing-shaped structure suitable for anti-icing and deicing, which comprises a shell and an electric heating piece, an electric heating piece is arranged in a shell, a first heating layer is formed on the upper wing face and the lower wing face of the inner wall of the shell, a second heating layer is formed on the front edge of the inner wall of the shell, the first heating layer and the second heating layer are electrically connected, and the first heating layer and the second heating layer are connected with an external power source through an electrode layer so that power can be supplied to the electric heating piece, and temperature distribution of different parts can be controlled. After the electrode layer conducts electricity, a first temperature area is formed on the first heating layer, a second temperature area is formed on the second heating layer, and the temperature of the first temperature area is lower than that of the second temperature area, so that it is guaranteed that the front edge of the airfoil structure is kept at the high temperature, and the deicing and anti-icing requirements are met. According to the airfoil structure suitable for anti-icing and deicing, differentiated heating can be conducted according to icing characteristics of different parts of the airfoil structure, it is guaranteed that the anti-icing and deicing requirements are met, meanwhile, energy consumption is reduced, and the energy utilization rate is increased.

The invention relates to an anti-freezing air cooler and an anti-freezing method thereof. The anti-freezing air cooler comprises an outer frame; the heat exchange tubes are arranged in the outer frame in parallel; the fins are arranged on the heat exchange tube in parallel; the heat preservation layer is arranged around the outer frame; the heat storage plate is arranged in the outer frame; the fan is arranged at the bottom of the outer frame and blows gas into the outer frame; wherein two ends of the heat exchange tube are respectively communicated with a medium inlet and a medium outlet; the heat exchange pipe comprises an inner pipe and an outer pipe arranged on the inner pipe in a sleeving mode. An anti-freezing space is formed between the inner pipe and the outer pipe; the two ends of the anti-freezing space communicate with a medium inlet and a medium outlet correspondingly. The fins are connected with the outer frame; the heat storage plate is located between the outer frame and the heat preservation layer. The problems that in an existing scheme, a steam heating tube bundle continuously works to heat ambient air, an air cooler is high in energy consumption, and the melting efficiency of frozen substances in a heat exchange tube is low by transferring heat through air are solved.