728 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 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 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 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.

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 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 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 auxiliary deicing of conveying equipment, and discloses a deicing device applied to a belt conveyor, which comprises support frames, box bodies are fixedly connected to the sides, close to each other, of the support frames, ice blades are fixedly connected to the inner walls of the box bodies, and high-pressure steam nozzles are fixedly connected to the inner walls of the box bodies. A hot water spray head is fixedly connected to the inner wall of the box body, a brush roller is rotatably connected to the inner wall of the box body, and an air spray head is fixedly connected to the inner wall of the box body. A first fixing rod fixed to the outer wall of a connecting rod moves along a first sliding groove, meanwhile, two cams fixed to a second fixing rod jack up a jacking block, and thin ice frozen into blocks can be crushed; the scraper scrapes ice blocks frozen on the top block, the scraper reciprocates and the top block crushes to remove frozen thin ice, the phenomenon that liquid in the box body is frozen at the bottom of the box body after being cooled is reduced, and the problem that normal operation of devices in the box body is affected due to thickening of an ice layer is solved.

The application discloses a preparation method of a photo-thermal ice-resistant super-hydrophobic coating and the super-hydrophobic coating, and comprises the following steps: heating and vacuumizing polytetrahydrofuran (PTMG) to remove water, so as to obtain PTMG after water removal; heating and vacuumizing hydroxypropyl-terminated polydimethylsiloxane (PDMS-OH) to remove water, so as to obtain PDMS-OH after water removal; mixing the PDMS-OH after water removal and the PTMG after water removal, adding ethyl acetate solvent to stir, adding dicyclohexylmethane diisocyanate (HMDI) and dibutyltin dilaurate (DBTDL) dropwise, pre-polymerizing, adding di(2-hydroxyethyl) disulfide (HEDS) when the reaction reaches equilibrium, and preparing polyurethane after the reaction is completed; mixing ZrN nanoparticles, SiO2-F and the polyurethane to obtain a suspension through ultrasonic treatment; spraying the suspension to obtain a coating, and drying the coating to obtain the photo-thermal ice-resistant super-hydrophobic coating. The coating prepared by the application has excellent ice-resistant performance, and can delay the icing time for up to 1422s at-20 DEG C, and the icing time of a blank control group is 17s, which is better than most of the known ice-resistant super-hydrophobic coatings.

The invention discloses a distributed quick-frozen vegetable processing and freezing device and a freezing process thereof. The distributed quick-frozen vegetable processing and freezing device comprises a freezing box body, a base box body, a positioning conveying roller, a floating conveying roller, a lifting mechanism, a rotating mechanism and a side rotating bin, a plurality of lifting blocks and a plurality of floating conveying rollers can be driven by a hydraulic air cylinder to move up and down, so that vegetables are continuously dispersed and separated up and down on the upper sides of the floating conveying rollers and a plurality of positioning conveying rollers, freezing and bonding among the vegetables are reduced, and in the discharging stage, a plurality of friction wheels are driven by friction during reciprocating transmission of a friction belt to rotate synchronously; in this way, the multiple positioning conveying rollers and the multiple floating conveying rollers synchronously rotate and are separated from the vegetables, the vegetables are frozen and bonded with the multiple positioning conveying rollers and the multiple floating conveying rollers and then rapidly rotate and are separated, and meanwhile the vegetables are rapidly conveyed out through synchronous rotation of the multiple positioning conveying rollers and the multiple floating conveying rollers. The separation efficiency and the conveying and discharging efficiency of the vegetables are greatly improved.

The invention relates to the technical field of cross-linked polyethylene insulated cables, and discloses an overhead insulated cable with an anti-icing coating, which comprises a cable core, an inner shielding layer, an insulating layer, an outer shielding layer, an inner sheath, an armor layer and other conventional structures, and is characterized in that a driving assembly and an anti-icing jacket assembly are arranged outside at equal intervals; the driving assembly is driven by the fixed ring, the rotating ring and the micro motor to drive the spiral twisting wire to be alternately tightened and loosened, so that the flexible twisting sleeve synchronously realizes radial wriggling and circumferential bidirectional torsion, the outer wall of the flexible twisting sleeve is provided with a V-shaped axial twisting groove, and the outer wall of the flexible twisting sleeve is coated with a compound anti-icing coating; according to the scheme, a bonding interface for breaking an ice blank and the surface of the cable at the initial stage can be formed on an ice shell, a thin water film is quickly discharged to block an icing core, and the hydrophobic and ice-hydrophobic characteristics of the coating are matched, so that ice layer growth circulation is cut off from the source, icing thickening is effectively inhibited, and safety accidents caused by large-scale icing are avoided; and the operation reliability of the aerial cable in the freezing rain, high-humidity and low-temperature environment is improved.

The present application relates to a kind of glass fiber CVD monolayer ice-removable composite packaging box manufacturing method, and ethylene etc. Alkenyl substance is converted into graphene at high temperature by CVD method and uniformly deposited on glass fiber cloth (referred to as monolayer), while the monolayer glass fiber cloth is sprayed by plasma with conductive material containing nickel, and positive and negative electrodes are led out, and then the RTM forming method in the field of composite material is used to make packaging box, the purpose of keeping the internal temperature of packaging box constant by Joule heat in use, while the outer surface of packaging box is frozen, it can be melted using heat energy, to achieve the purpose of deicing, and the packaging box can be used as a separate system, so that the packaging box has good environmental adaptability and strong practicability. At the same time, it meets the needs of constant temperature and ice-removable composite packaging box in the field of aerospace or special function.

The invention provides a polymorphic wear-resistant repairable anti-icing coating and a preparation method thereof, and relates to the technical field of anti-icing coatings. Comprising the following steps: dispersing conductive carbon black particles and multi-walled carbon nanotubes in absolute ethyl alcohol, and stirring at room temperature to obtain dispersion liquid containing functional particles; the preparation method comprises the following steps: adding a long-chain alkyl silane coupling agent and deionized water into absolute ethyl alcohol, and stirring to obtain a hydrophobic modifier; then adding a hydrophobic modifier into the dispersion liquid, and stirring to obtain a mixed liquid; separating the mixed solution, cleaning and drying the obtained functional particles, adding epoxy resin and a curing agent, and stirring to obtain a spraying solution; and spraying the spraying liquid on the surface of a base material according to parameters, and drying to obtain the product. Through the design that epoxy resin wraps multi-structure and scale functional particles, the coating gives consideration to mechanical durability and super-hydrophobicity, has the rapid heating capacity, can deal with all-weather extreme anti-icing scenes, can work for a long time due to the extremely high self-repairing efficiency, and saves a large amount of maintenance cost.

The embodiment of the invention provides a carbon nanotube / fluorocarbon resin composite microsphere photo-thermal super-hydrophobic anti-condensation coating and a preparation method thereof.The preparation method comprises the steps that firstly, carbon nanotubes and fluorocarbon resin are evenly dispersed in a solvent, then a small amount of non-solvent water is added to enable a solution system to be subjected to phase separation, and carbon nanotube / fluorocarbon resin composite microsphere dispersion liquid is formed; and finally, spraying the carbon nanotube / fluorocarbon resin composite microsphere dispersion liquid, and curing to obtain the photo-thermal super-hydrophobic anti-condensation coating. The carbon nano tube is in a microsphere shape in the coating, so that a typical micro / nano coarse structure is obtained on the surface, the water drop contact angle of the coating is as high as 158 degrees, the icing delay time is as high as 434s, and the ice adhesion force is as low as 16kPa; under the irradiation of sunlight, the temperature of the coating can be increased to 54.5 DEG C within 10 minutes under the photo-thermal action of the carbon nanotubes, so that the melting of ice is accelerated.

The invention discloses an ice adhesion strength measuring device and an ice adhesion strength measuring method, and belongs to the technical field of ice adhesion strength measurement. The measuring device comprises an inner arc guide rail, an outer arc guide rail, an icing mold, an action line, a tension sensor, a first movable part, a second movable part and a steering part. The inner arc guide rail is coaxially sleeved with the outer arc guide rail, the icing mold is fixedly connected with the inner arc guide rail and provided with an icing cavity, the icing cavity can make contact with the surface of a sample to be tested, the first movable part is movably installed on the inner arc guide rail, the second movable part is movably installed on the outer arc guide rail, and the steering part is fixedly arranged. One end of the action line is fixed on the first movable part, and the other end is wound on the second movable part and the steering part and connected with the tension sensor; the first movable part can be driven by the action line to move along the inner arc guide rail. The ice adhesion strength at any angle is measured by adjusting the position of the action line, and the measurable angle range of the ice adhesion strength is expanded.

The frost crack prevention water inlet valve comprises a valve assembly, the valve assembly is provided with a valve inner cavity, a water inlet and a water outlet, the water inlet and the water outlet are communicated with the valve inner cavity, the valve inner cavity is provided with a valve port communicated with the water inlet and the water outlet, the valve port is provided with a valve element movably matched with the valve port to open and close the valve port, and the valve assembly is further provided with a frost crack prevention cavity. The inner side end of the anti-frost-crack cavity is communicated with the valve inner cavity, the anti-frost-crack cavity is provided with a movable part and a first elastic part which are movably matched with the anti-frost-crack cavity, when liquid in the valve inner cavity is frozen, the volume of ice blocks expands to drive the movable part to move towards the outer side end of the anti-frost-crack cavity, and when the ice blocks in the valve inner cavity are melted, the movable part is driven to move towards the outer side end of the anti-frost-crack cavity. And the movable part is driven by the first elastic part to move and reset towards the inner side end of the frost crack prevention part. According to the anti-frost-crack water inlet valve, the structure of the anti-frost-crack cavity is arranged, the water inlet valve can be effectively prevented from being damaged, and meanwhile the structural design is simple, reasonable and compact.

The utility model relates to a cold accumulation and ice melting drinking water cooler which comprises a machine body and a control system, a refrigerating system and a water taking nozzle are arranged on the machine body, a cold accumulation water tank is arranged in the machine body, a cold water cavity used for storing water is formed in an inner cavity of the cold accumulation water tank, and an evaporation coil pipe and a cold water coil pipe which are formed in a repeated winding mode are arranged in the cold accumulation water tank. The evaporation coil pipe and the cold water coil pipe are matched in a cold water cavity in a heat exchange mode, the evaporation coil pipe is connected to a refrigerating system in series, one end opening of the cold water coil pipe is connected with a water taking nozzle, and the other end of the cold water coil pipe is connected with a water source. The refrigerating efficiency of drinking water can be improved, the preparation amount of cold water in unit time is further improved, the cooling uniformity is facilitated, and meanwhile the interior of the cold storage water tank or the cold water coil pipe is prevented from being frozen.

The utility model provides an ice crushing structure of a blender of a smoothie machine, which comprises an ice crushing rod, an impeller and a base, ribs are arranged on the inner side of the ice crushing rod, the ice crushing rod scrapes large smoothies on the outer wall of an evaporator, the ribs scrape the icing surface of the outer wall of the evaporator, the contact area between the ribs on the inner side of the ice crushing rod and the outer wall of the evaporator is small, and the ice crushing effect is good. The normal operation of the stirrer is not influenced while the ice crushing efficiency is improved.

The invention discloses a living cattle egg collecting operation room, and relates to the technical field of living cattle egg collecting facilities, the living cattle egg collecting operation room comprises an egg collecting chamber, a first buffer chamber and a second buffer chamber, and the first buffer chamber and the second buffer chamber are arranged on the two sides of the egg collecting chamber respectively; opening and closing doors are arranged between the egg collecting chamber and the first buffering chamber, between the egg collecting chamber and the second buffering chamber, on the side, away from the egg collecting chamber, of the first buffering chamber and on the side, away from the egg collecting chamber, of the second buffering chamber. Heating devices are arranged in the egg collecting chamber and the first buffering chamber or the second buffering chamber connected with an inlet of the egg collecting chamber. The first buffering chamber and the second buffering chamber play a role in temperature buffering, the influence on the temperature of the egg collecting chamber is reduced, the egg collecting operation room is suitable for an annular cold environment, the working environment temperature is guaranteed, the operation convenience of egg collecting personnel is improved, the phenomenon that the egg collecting pipe is frozen and frozen is avoided, and the survival state of eggs is guaranteed.