502 results about "Air current" patented technology

The invention discloses a numerical simulation prediction method and system for typhoon binocular wall structure reconstruction judgment and maintenance duration after terrain interference and a medium, and relates to the technical field of typhoon fine structure evolution description and numerical simulation. According to the method, the binocular wall typhoon is identified through multi-source data fusion, a high-resolution numerical simulation system is constructed, and a typhoon structure is divided into four quadrants for differential diagnosis according to the wind shear direction based on vertical wind shear phase limit analysis. And the distribution characteristics of the rapid vortex silking area are captured by calculating vortex silking time parameters. And establishing a ditch sinking airflow detection mechanism, and quantitatively evaluating the contribution of radial advection, tangential advection, vertical advection and friction force items to tangential wind evolution by using tangential wind income and expenditure diagnostic analysis. And calculating an energy growth rate, and predicting a double-eye wall maintaining time length. According to the method, the outer eye wall re-formation judgment is output, the outer eye wall radius zone, the maintenance duration interval and the uncertainty are predicted, and the method is suitable for real-time business and research.

The invention discloses a multi-agent cooperative control system based on adaptive learning, and belongs to the technical field of multi-agent system control, and the system specifically comprises the steps: collecting and analyzing the wind field data of the position of each agent; distinguishing two typical working conditions of a global uniform wind field and a local disturbance wind field based on a consistency analysis result; for a global uniform wind field, a model prediction control method is adopted to generate a wind field compensation strategy for keeping formation stability; for a local disturbance wind field, an accurate airflow disturbance state is obtained through environment three-dimensional reconstruction and fluid simulation, then the expected track deviation of each agent is predicted, and a collaborative avoidance instruction set is generated in combination with a relative position relationship. According to the method, adaptive cooperative control of multiple agents under different wind field working conditions is realized, the hidden conflict problem caused by local wind field disturbance is effectively solved, and the flight safety and task reliability of an agent cluster in a complex environment are remarkably improved.

The invention discloses a wind power generation system. The system comprises a ground device; the floating device comprises an adjusting air floating piece and a first annular air floating piece, the adjusting air floating piece is movably connected with the ground device, the first annular air floating piece is connected with the adjusting air floating piece, and a through duct is defined by the inner wall of the first annular air floating piece; the wind power generation device is arranged in the duct; and the position of the gravity center of the adjusting air floating piece in the extending direction of the duct is adjustable. According to the wind power generation system, the influence of airflow disturbance, temperature change and buoyancy lift gas leakage on the floating device can be reduced, the phenomenon that the pitching posture change amplitude is large is reduced, particularly, the included angle between the wind receiving face of the blade of the wind power generation device and the airflow direction is closer to the optimal value, the effective wind energy area flowing through the blade is increased, and the wind power generation efficiency is improved. And the fluctuation of the wind energy yield along with the posture is reduced, so that the wind energy utilization efficiency and the power generation output power are improved.

The invention discloses a mountainous area wind field downscaling optimization method based on high-precision simulation, and relates to the technical field of meteorological numerical simulation, and the method comprises the steps: obtaining the terrain elevation data and meteorological monitoring data of a target mountainous area, recognizing slope abrupt change points, constructing a spiral sampling path, calculating a slope change value, determining the distance between sampling points, and generating target sampling data; performing orthogonal decomposition on the sampled data to obtain a frequency component, calculating a surface fluctuation coefficient, and constructing a boundary disturbance equation to obtain surface stress distribution; calculating an airflow motion state based on surface stress distribution, solving a vorticity equation to obtain vorticity characteristics of a leeward area, and calculating airflow motion correction parameters; and carrying out downscaling iterative operation on the corrected parameters and the meteorological monitoring data to generate target area wind field data with hectometer-magnitude spatial resolution. The simulation precision of the local wind field under the complex terrain condition is improved.

The invention relates to the technical field of ocean new energy technology utilization, and discloses an oscillating water column type wave energy power generation system with an energy gathering structure at the bottom, which comprises a jacket, an air chamber, a turbine power generation system, a radar altimeter, an infrared camera, an airflow velocity sensor, a control host and a bottom energy gathering assembly, the bottom energy-gathering assembly is installed at the lower end of the air chamber and provided with a transmission mechanism, reflection and diversion of seawater at the bottom of the air chamber are achieved through the arranged horizontal bottom plate and the two symmetrically-arranged energy-gathering plates, energy gathering beyond the width of the air chamber is completed, and opening and closing of the energy-gathering plates are synchronously controlled through the transmission mechanism. And the amount of seawater flowing into the air chamber from the water inlet is changed. According to the wave energy power generation system, the oscillation intensity of the water column in the air chamber can be adjusted according to changes of sea surface waves, the speed of the generated air flow can be matched with the optimal working frequency of the turbine power generation system, the power generation efficiency of the device is guaranteed, and the oscillation water column type wave energy power generation device can be protected and prevented from being impacted by sea waves.

The invention relates to the technical field of helicopter aerodynamic force simulation, and discloses a sea rescue helicopter rotor aerodynamic force simulation method and system. The method comprises the following steps: acquiring a rotor wing downwash airflow historical speed data set, a historical sea surface wave data set and a historical aerodynamic pressure data set monitored within a preset historical time range; executing a dynamic volatility analysis process on the three types of historical data sets to generate a speed volatility index, a sea surface wave volatility index and an aerodynamic pressure volatility index; taking the three types of volatility indexes as guide parameters, performing adaptive search operation in a rotor aerodynamic force simulation parameter database, and determining an optimal simulation time interval; and performing numerical calculation simulation on pneumatic coupling between the rotor wing and the sea surface according to the optimal simulation time interval to generate a simulation data sequence, performing feature extraction and classification on the simulation data sequence by using an aerodynamic force recognition model, and outputting a rotor wing aerodynamic force simulation result.

The invention provides a radar rainfall real-time estimation system based on double-method fusion and ground verification, belongs to the technical field of meteorological radar rainfall estimation, and adopts double-method fusion of a physical model estimation module and a driving model estimation module to cooperate with a causal inference fusion engine to improve the precision and adaptability of rainfall estimation and improve the rainfall estimation accuracy. The physical model module adaptively selects a Z-R, ZDR-R or KDP-R relation according to the quality of radar-based data and rainfall scenes, drives the model module to capture space-time nonlinear evolution characteristics of rainfall echoes and predicts short-time rainfall dynamics, and the causal inference engine identifies differentiated characteristics of two estimation fields, inferes hail, vertical airflow and other physical hybrid factors, and performs real-time prediction on the hail, the vertical airflow and other physical hybrid factors. A comprehensive rainfall estimation field is generated, a continuous error correction field converted from ground station observation data is corrected through a space-time error atlas network, and finally rainfall estimation information is generated for real-time rainfall estimation, so that the adaptability to a complex weather field and the precision of the estimation field are improved.

The invention discloses an intelligent smoke furnace catalysis operation condition suitability grading method. The method comprises the steps that basic parameters of an operation point are obtained; calling a Passive-Toner algorithm to calculate the atmospheric stability grade of the operation point; the continuous cigarette lighting source intensity is calculated according to the used flame bar combustion data; calculating the vertical airflow distribution of the operation point by adopting a Matviyerv vertical velocity theoretical model based on the altitude and vertical airflow observation data of the operation point; based on the continuous cigarette lighting source intensity, calculating the ice nucleus number concentration distribution in the cloud in combination with the vertical airflow distribution and the horizontal wind field; calculating an operation suitability index by adopting a comprehensive index algorithm in combination with the lifting condensation height, the cloud amount and the cloud classification data; and performing grading processing on the job suitability index according to a set threshold value combination so as to output a plurality of job suitability grading results. According to the method, comprehensive analysis is carried out by considering the meteorological condition and the catalytic condition of the operation point, so that the accuracy and the credibility of an operation condition suitability judgment result are improved to a certain extent.

The invention discloses a low-altitude aircraft route real-time meteorological risk early warning method and system, and belongs to the technical field of flight risk identification. The method is used for solving the technical problem that the missing report rate of sudden weather phenomena such as wind shear and micro downburst in an existing scheme is high. The three-dimensional wind shear and turbulence intensity is identified through bimodal cooperation, and the limitation of traditional single-parameter identification is broken through; through independent modeling of normal rigidity and tangential damping, the risk characteristics of vertical airflow and horizontal wind shear are decoupled, so that the risk identification precision can be effectively improved; a height self-adaptive threshold value can effectively reduce the false alarm rate of a low-altitude complex terrain scene; according to the nonlinear attenuation control, through a tanh function, a dynamic response that the larger the risk overshoot is, the stronger the control force is is, and the risk energy propagation depth can be effectively reduced; by using the amplification effect of fractional differential on weak disturbance, the detection rate of risk abrupt change can be effectively improved, and missing report of sudden risks is avoided.

The invention discloses a design method of an array type silencer adaptive to a main ventilation air path between a stator iron core of a hydraulic generator and an air cooler and the array type silencer, and relates to the technical field of suppression or reduction of noise of the hydraulic generator. The method comprises the steps of S1, obtaining aerodynamic noise data and airflow parameters of a main ventilation air path, S2, determining a silencing thought and a micro-perforated plate array core structure according to broadband vortex, discrete rotation, vortex falling and surge noise, S3, determining the boundary dimension and preliminarily calculating the airflow parameters, S4, designing plate parameters in combination with a micro-perforated resonance formula, and S5, calculating the noise of the micro-perforated plate array. S5, performing simulation optimization and S6, accurately accounting airflow parameters, and locking a scheme meeting requirements; the silencer comprises a shell and a plurality of micro-perforated plates, and the multiple layers of micro-perforated plates are arranged in series. The invention has the advantages of no sound absorption material, low wind resistance (the air volume attenuation is less than or equal to 5%, and the pressure loss is less than or equal to 200Pa), the noise of the main wind path is reduced by 5-7dB (A), the service life is long, the operation and maintenance cost is low, and the requirements of the main wind path are met.

The invention relates to the technical field of intelligent sampling, in particular to an unmanned aerial vehicle water sediment intelligent sampling method and system based on rotational flow sorting, and the method comprises the following steps: collecting disturbance trajectory and rotational flow data, identifying a stable inlet, screening an alignment interval, executing screen mesh alignment, and generating a sampling record. According to the method, stable section calibration is formed by superposing wind speed direction fluctuation and rectifying plate track change, the screening range is locked to an alignment interval in combination with multi-parameter mapping of the rotating speed and the particle density, and the sediment movement state is captured in a layered mode in a deposition layer through a screen; a whole-process sampling sequence is constructed by a collaborative time sequence of rectification action and screen operation, so that real water disturbance characteristics can be dynamically extracted, sediment movement rules can be matched, the sampling trigger response accuracy is improved, and the screening alignment precision under multi-factor coupling is enhanced; the target section is accurately captured under the interlaced interference of the airflow disturbance and the particle settling process, and the particle layered structure is stably kept.

The invention relates to the field of ocean renewable energy technology utilization, and provides an oscillating water column type wave energy power generation device based on a superstructure, which comprises an oscillating water column main body, a superstructure assembly, a top shell and a power generation unit, and is characterized in that the interior of the oscillating water column main body is provided with the superstructure assembly formed by a plurality of guide plates which are arranged along the radial direction and extend in a horn shape; the oscillating water column body is internally divided into a plurality of independent oscillating water column cavities with gradually-changed sizes by combining with the partition plate assembly, an air chamber is defined by the top shell and the oscillating water column body, and airflow energy generated by water column oscillation driving is converted into electric energy through the power generation unit. The power generation unit can adopt a plurality of split type air turbines to generate power or a general type air turbine to generate power. The special fluctuation performance of the superstructure is fully exerted, efficient broadband capture and wave absorption are achieved, meanwhile, wave loads are effectively reduced, diversified integration of wave energy power generation devices is developed, sea area resources and operation and maintenance cost are saved, and negative environmental influences are reduced.

The presentation system 100 comprises: a tornado fan in which a plurality of blowers each perform blowing so that clockwise or counterclockwise air flow is generated in a presentation space surrounded by exhaust ports 114 of the plurality of blowers when viewed in a plan view; and a supply device 12 that supplies a float body such as a bubble into the presentation space. It is possible to cause an aggregate of bubbles to float in the vicinity of the center in the presentation space by means of a vortex air flow formed in the presentation space.

The invention discloses multistage duct turbofan power generation equipment, and relates to the technical field of power generation equipment. The ducted shell comprises a first ducted shell body and a second ducted shell body which are coaxially arranged in a communicating mode. The flow guide assembly is arranged in the first duct shell and used for guiding external airflow into the second duct shell; the positioning assembly is arranged in the duct assembly; and the middle shaft is arranged in the duct assembly through a positioning assembly. Aiming at the pain points of structural fatigue, shaking and space waste caused by one-way torque conduction when a conventional wind driven generator is mounted on a mobile platform, a conformal integrated duct design is adopted, and a two-stage turbofan, a planetary reverse rotation mechanism and a permanent magnet generator are coaxially integrated, so that air flow shrinks in a trumpet-shaped duct to accelerate pre-swirl flow guide, and the flow guide efficiency is improved. The contra-rotating turbofan is further driven to do work synchronously, the torque is completely self-counteracted, high tip speed ratio operation can be achieved at the low wind speed, and efficient and zero-reaction-torque power generation in the narrow space of the mobile platform is achieved.

The invention belongs to the technical field of environment detection, and particularly relates to atmospheric pollution environment governance detection equipment which comprises a mounting rod, a detection device is mounted at the top end of the mounting rod, a control box is mounted in the middle of the mounting rod, a rotating sleeve sleeves the top end of the mounting rod, and a supporting rod is fixed to one side of the rotating sleeve. A connecting plate is rotationally connected to the side, away from the rotating sleeve, of the bottom end of the supporting rod, a photovoltaic panel is fixed to the bottom end of the connecting plate, rotating plates are rotationally connected to the two sides of the rotating sleeve, and transmission assemblies are arranged below the rotating plates; the wind blows the photovoltaic panel to drive the rotating plate to rotate through the transmission assembly, and the rotating plate drives the protective shell to be closed. The photovoltaic panel is blown by wind power, and the photovoltaic panel drives the protective shell to be closed to cover the detection device, so that the outside of the detection device is protected, and the detection device can be prevented from being damaged due to inaccurate data caused by detection in extreme weather or being smashed by an object in airflow.

The invention discloses a wind field super-resolution method and system based on a virtual wind lidar, and belongs to the technical field of radar simulation, and the method comprises the steps: simulating a three-dimensional transient turbulent flow wind field according to a computational fluid mechanics model, and obtaining a three-dimensional wake flow wind field containing the influence of airflow around a building; a radial projection visual angle of the simulated wind measurement laser radar converts a wind field slice with a preset height into a corresponding radial speed field, and simulated scanning wind field data and random sampling wind field data are generated through a simulated structured radar scanning process and random sampling according to a preset radial distance resolution and a scanning stepping angle. And based on the random sampling wind field data and the radial velocity field, constructing training data to train a modern generation type denoising model, and inputting the simulated scanning wind field data into the trained modern generation type denoising model to obtain a reconstructed radial wind field. According to the invention, the problems of pulse crosstalk, spectrum broadening, prolonged signal accumulation time and poor system stability caused in practice in the prior art are solved.

The invention discloses a generator control method and system based on bionic eddy current regulation and control and magnetic variable pitch. The generator control method based on bionic vortex regulation and control and magnetic variable pitch comprises the steps that the wind speed is obtained, a variable geometric vortex generator is regulated and controlled according to the wind speed, when the wind speed is smaller than a first preset wind speed, the height of a fin of the variable geometric vortex generator is increased, and when the wind speed is larger than a second preset wind speed, the height of the fin is reduced. The first preset wind speed is smaller than the second preset wind speed; pressure distribution on the surface of the blade is obtained, when the pressure distribution on the surface of the blade is abnormal, the deformation area is positioned, and the bionic self-adaptive deformation structure is controlled to conduct self-adaptive deformation in the deformation area so as to guide airflow attachment; according to the wind speed and the pressure distribution on the surfaces of the blades, the magnetostriction variable pitch system is controlled to drive the blades to change the angles and the lengths, and according to the embodiment of the invention, the environmental adaptability, the reliability and the working efficiency of the wind driven generator can be effectively improved.

The invention relates to the technical field of low-altitude atmosphere monitoring, and particularly discloses a low-altitude meteorological digital twinborn reconstruction method based on three-dimensional entity data modeling, seamless connection from a regional macroscopic wind field to an urban microscopic flow field is realized through combination of a mesoscale meteorological model and a computational fluid mechanics model, and the low-altitude meteorological digital twinborn reconstruction method based on three-dimensional data modeling of a real city is realized. The physical effect of surface features on airflow is directly considered, errors of a CFD grid model are continuously corrected through real-time observation data, the uncertainty of pure numerical simulation is made up, the capturing capacity of a space-time mutation phenomenon is improved, a hidden rule in the data is mined through an intelligent prediction model, and the real-time prediction model is established. According to the method, the precision of urban boundary layer airflow simulation can be remarkably improved, and a more accurate meteorological guarantee service is provided for the fields of atmospheric environment monitoring, urban planning, aviation safety and the like.

The invention provides a supersonic rotational flow atomization dust removal spray head device and a spray pipe optimization simulation analysis method, and relates to the technical field of supersonic rotational flow atomization spray heads, the device comprises an air inlet pipe, a liquid inlet, a shell, a Laval spray pipe, an outer rotational flow pipeline and an atomization spray nozzle, the Laval spray pipe is arranged in the outer rotational flow pipeline, and the atomization spray nozzle is arranged in the shell; a wave elimination section of the Laval nozzle is connected with the atomizing nozzle, a spirally distributed liquid film circular seam is formed in the side wall of a mixing chamber at the lower end of a throat part of the Laval nozzle, and a spiral flow deflector is arranged at an outlet of the atomizing nozzle. Efficient dynamic interaction with rotating liquid supplied by the outer ring spiral channel occurs at the outlet of the nozzle, efficient fog drop crushing and uniform spraying are achieved through airflow acceleration and kinetic energy conversion, and it is guaranteed that the particle size of fog drops meets the requirements of capturing coal dust, improving the atomization efficiency, strengthening the wind resistance and reducing water consumption; better fogdrop particle size matching is realized; and the blocking risk is reduced.

The invention discloses a self-adaptive load reduction wind power blade assembly and a wind power generator set, and relates to the technical field of wind power generation, the self-adaptive load reduction wind power blade assembly comprises a blade body, a spiral blade plate and a cover body; a first load reduction air channel and a second load reduction air channel which are communicated with the rear edge are arranged in the blade body, and the second load reduction air channel is arranged around the first load reduction air channel and forms an overflowing cavity; an air inlet is formed in the front edge of the blade body; the spiral blade plate extends in the overflowing cavity to form a spiral overflowing channel; the cover body is hinged to the front edge and covers the air inlet; when the cover body rotates inwards by a first preset angle under the impact of external airflow, the air inlet is communicated with the first load reduction air channel; when the cover body rotates inwards by a second preset angle under the impact of external airflow, the air inlet communicates with the first load reduction air channel and the overflowing channel. According to the scheme, the cover body swings in a self-adaptive mode at the two preset angles, light drainage and heavy drainage can be achieved based on different wind conditions, and the structural safety of the wind power blade under the extreme wind condition and the power generation efficiency under the conventional high wind speed can be both considered.

The invention discloses an air turbine type power generation device, particularly discloses an air turbine type power generation device for generating power by utilizing wave energy, and belongs to the technical field of design and manufacturing of wave energy utilization equipment. The invention provides an air turbine type power generation device for generating power by utilizing wave energy, which can effectively improve the flow field and flow state characteristics of oscillating airflow and effectively improve the power generation efficiency. The air turbine type power generation device comprises a floating type arrangement foundation, an oscillation air chamber and an air turbine generator body, the air turbine generator body is connected with the oscillation air chamber, and the oscillation air chamber arranged on the floating type arrangement foundation outputs pressure power generation airflow under the cooperation of waves. The air turbine type power generation device further comprises a pressure airflow composite adjusting mechanism, the flow field, the flow state and / or the flow of pressure power generation airflow output by the oscillation air chamber are adjusted at least once through the pressure airflow composite adjusting mechanism, and the air turbine generator body is driven to generate power by inputting the adjusted pressure power generation airflow.

Processes and systems for providing a CO2 enriched stream from an air stream, by: selectively adsorbing, in a first separation zone, CO2 and H2O in an air stream and providing a CO2 and H2O depleted gas stream; separating, in a second separation zone, the CO2 and H2O depleted gas stream and providing an N2 enriched stream, an O2 enriched stream, and an N2 enriched regeneration stream; heating the N2 enriched regeneration stream to provide a heated N2 enriched regeneration stream; selectively desorbing, in the first separation zone, the CO2 and H2O using the heated N2 enriched regeneration stream and providing a spent regeneration gas stream; drying the spent regeneration gas stream to remove H2O and providing a dried spent regeneration gas stream; and separating, in a third separation zone, the CO2 from the dried spent regeneration gas stream to provide a CO2 enriched stream.

The invention relates to the technical field of temperature and humidity control, in particular to a temperature and humidity control method and system for a test box and a medium. The method comprises the following steps: arranging a plurality of tangential air inlets which are circumferentially distributed at the top of a test box, and forming a spiral flow field from top to bottom in the box body by adjusting the air speed and direction of each air inlet; arranging a plurality of measuring points along the airflow path of the spiral flow field, wherein each measuring point measures the wind speed, temperature and humidity of the current position; correcting the temperature and humidity readings according to the measured wind speed to obtain corrected temperature and humidity data; weighting the corrected temperature and humidity data according to the volume weight of the test box, and calculating to obtain the overall temperature and humidity state of the box body; the humidity difference between the air inlet and the air outlet is measured and the moisture change condition in the box body is calculated by combining the wind speed. The temperature and humidity of the test box are accurately and intelligently controlled through a spiral flow field and a dual inspection mechanism comprising a dominant mode and a distribution state.

The invention discloses a wavy low-resistance efficient cooling structure for cooling the interior of a turbine blade, and belongs to the technical field of aero-engines, the wavy low-resistance efficient cooling structure comprises a plurality of stacked wavy units arranged on the inner wall of a cooling channel in the turbine blade, and the wavy units are obliquely arranged in the airflow direction; the lap joint width between the adjacent wave units is 1 / 4 of the diameter of the wave units, the adjacent wave units are arranged in a staggered mode at the angle of 30 degrees, the wave units gradually compress a boundary layer through the gradient of 8: 1, and flow separation is avoided. The unique form of the wave-shaped low-resistance efficient cooling structure can effectively guide cold air, effectively relieve boundary layer separation, reduce the area of a separation area and further reduce flow resistance. The stacked wave units increase the effective heat exchange area of the inner cavity of the cooling channel and disturb cold air, the turbulence intensity is remarkably enhanced, the heat exchange coefficient is improved, the pressure loss of the cooling channel is effectively reduced, and efficient cooling is achieved.

The invention relates to the technical field of holographic electric quantity sensing and local hot spot regulation and control, in particular to an intelligent control system and method for energy-saving turn-off of an air conditioner based on holographic electric quantity sensing. The position marking unit associates the equipment position with an air conditioner airflow path, records a hot spot area wind speed reference value and an attenuation coefficient and marks a hot spot influence range, and the control unit calculates the minimum wind speed of a hot spot for maintaining a standard temperature through a heat diffusion model, predicts a global heat load in combination with the total electric quantity, coordinates frequency reduction of a compressor and generates a wind speed instruction. The fan control unit adjusts the wind speed in a partitioned mode, self-adaptive compensation is started in combination with actually-measured temperature rise, bidirectional closed-loop control over the fan and the compressor is achieved, and the energy-saving and temperature-control requirements are balanced.

The invention discloses an automatic control system for drying waste heat recovery. The automatic control system comprises a heat energy utilization rate calculation module, a flow control module, an airflow analysis module and an adjusting module. The heat energy utilization rate calculation module calculates the current heat energy utilization rate in combination with a preset heat transfer model to obtain the matching deviation of heat exchanger operation and dryer state; the flow control module extracts wind speed and pressure distribution data from the air duct system, analyzes the uniformity of airflow distribution by adopting an airflow simulation algorithm, and determines a deviation area and an adjustment amplitude of air volume adjustment; the airflow analysis module executes accurate adjustment through an automatic control module of an air volume adjusting valve according to the deviation area, the adjusted air speed and pressure data are obtained, and whether airflow distribution reaches a preset uniformity standard or not is judged; the adjusting module obtains flow and temperature monitoring data of the condensate water pipeline, analyzes linkage efficiency of condensate water management and waste heat recovery in combination with a heat recovery rate calculation formula of the waste heat recovery device, and determines optimization requirements.

The utility model discloses an air curling iron which comprises an inner support used for air inlet and an air guide outer shell arranged outside the inner support in a sleeving mode and used for air outlet, and the air guide outer shell can rotate to switch the air outlet direction. The inner support comprises a plurality of air outlet inner edges axially arranged on the inner wall of a cylinder of the inner support, and a first air outlet and a second air outlet in the axial direction are formed in the two sides of each air outlet inner edge correspondingly. The air guide shell is cylindrical and comprises an air guide opening formed in the air guide shell in the axial direction. The air outlet direction is switched by rotating the outer shell, a user only needs to slightly rotate the outer layer to easily change the direction of airflow, leftward or rightward hair curling is achieved, operation is easy and visual, and using convenience and comfort are greatly improved.

To improve the corrugated separators inserted between the filter media of an air filter so that they do not damage the filter media. In particular, to improve the ends of cross-shaped corrugated separators, which are used with their ridges intersecting, so that they do not damage the filter media. [Solution] A separator formed in a wave shape, wherein the cut surface of the end of the separator does not have an edge, and in the case of a wave separator used by intersecting the ridges of the wave, the end of the separator is formed in a flat portion parallel to the direction perpendicular to the direction of airflow passage.

The utility model provides an anti-blocking device for a mud-containing liquid compressed air aeration pipe, which comprises an air cap and a needle-shaped anti-blocking device, the air cap is arranged at an air distribution hole on an air distribution pipe of a reaction tank, the air cap covers the outside of the air distribution hole, and the needle-shaped anti-blocking device penetrates through the air distribution hole and is arranged inside the air cap. An exhaust hole array is arranged in the air cap, and the needle-shaped anti-blocking device is driven by air flow to generate irregular motion in the aeration process. The needle-shaped anti-blocking device is driven by airflow to move irregularly in the aeration process, so that sludge and sediments in the air distribution holes are automatically scraped, blockage is avoided, and the manual cleaning frequency is reduced. Air flow distribution is optimized through exhaust holes of the air caps, it is ensured that compressed air evenly enters liquid, and the oxidation reaction or sewage treatment efficiency is improved. The movement of the anti-blocking device does not influence the original gas speed and gas flow, and a stable aeration effect is maintained.

The application discloses a humidifying assembly and a refrigeration equipment, and relates to the technical field of humidification. The humidifying assembly comprises a shell, a water storage element, a first fan, a wind distribution pipe and a partition plate. The water storage element is located in the shell and is used for storing moisture or generating humidity. The first fan generates a conveying airflow passing through the water storage element to take away the moisture of the water storage element. The wind distribution pipe is connected with the first fan, and the wind distribution pipe is provided with a plurality of first air outlets which are arranged at intervals. All the first air outlets are directed towards the water storage element. The partition plate is arranged in the shell and is used for separating the airflow of two adjacent first air outlets. By arranging a plurality of first air outlets which are arranged at intervals in the wind distribution pipe, the air outlet of the distributor is more dispersed. Then, the airflow of two adjacent first air outlets is separated by the partition plate, so that the mutual gathering of the airflow is reduced, and the air outlet uniformity and humidity distribution uniformity are ensured.