24 results about "Icing" patented technology

This invention provides a mobile wind tunnel device capable of outputting uniform droplets, belonging to the field of icing and anti-icing technology for ships and marine structures. The device includes: a stabilizing rectangular cavity and a transitional circular-to-square cavity, the stabilizing rectangular cavity and the transitional circular-to-square cavity being connected. The circular opening of the transitional circular-to-square cavity is connected to a variable frequency fan. A honeycomb rectifier and multiple airfoil spray frames are installed inside the stabilizing rectangular cavity, with the honeycomb rectifier located between the variable frequency fan and the airfoil spray frames. This mobile wind tunnel achieves uniform droplet output, maintaining a stable airflow field through the honeycomb rectifier; by arranging heating tape in the water and air pipes inside the airfoil spray frames, the wind tunnel device can operate for extended periods in low-temperature environments without icing; and a control cabinet controls wind speed, water pressure, and air pressure to obtain icing data for the ship's superstructure under different wind speeds and droplet diameters.

The application provides a wind power short-term power prediction method, system and device affected by icing. First, weather data and icing data on the surface of a fan blade are acquired, the icing data is analyzed to obtain an icing type, then changes in the weather data are monitored and analyzed to obtain weather prediction data, and finally, the wind power short-term power is predicted in real time according to the icing type and the weather prediction data. The application can observe the icing structure characteristics from multiple directions, subdivide the icing structure, facilitate more detailed understanding of the type of the icing, better control the change trend of the icing, and make more reasonable prediction on the short-term power.

The application discloses a ship gas turbine air inlet anti-icing device and an anti-icing method. The device is clamped and fixed on the gas turbine through a clamping type positioning connecting assembly, then hot air is uniformly blown in the rotating control cylinder through a hot air generating assembly and a blowing and heating assembly, the moisture and frost in the rotating control cylinder are dried and removed, and the temperature control effect of the air inlet of the ship gas turbine is improved, so that the air inlet of the gas turbine is prevented from icing.

The invention relates to the technical field of composite structure ship plate forming, in particular to a basalt fiber composite structure ship plate and forming equipment thereof, the basalt fiber composite structure ship plate comprises a surface protection layer, a middle functional layer, a core supporting layer and a bottom joining layer which are arranged from top to bottom, and the thickness ratios of all the layers are 15%, 30%, 40% and 15% in sequence; and the middle functional layer comprises a flexible heating layer which is electrified to heat. The outer side of the ship plate can be effectively prevented from being frozen when the ship sails in a severe cold area, so that the problems of ship weight increase, gravity center shift, stability reduction, sailing resistance increase, fuel consumption increase, ship structure damage, key equipment damage and the like caused by freezing are prevented, sailing risks are remarkably reduced, and the sailing efficiency is improved. Pollution and damage of accidents such as sinking and oil leakage to the marine environment are reduced, meanwhile, the living environment of sailors is improved, and cargo safety and normal operation of equipment on the ship are guaranteed.

The invention relates to the technical field of port transportation ship loading equipment, and discloses a wharf ship loader all-weather automatic water feeding device which comprises a fixing frame, a ship loader is arranged on the upper side of the fixing frame, a transfer water tank is arranged on the front side of the interior of the ship loader, and the front side of the transfer water tank communicates with a conveying pipe. A main water tank is arranged on the right side of the front wall of the ship loader, the top end of the conveying pipe communicates with the main water tank, a water feeding mechanism is arranged on the inner side of the fixing frame and comprises a fire-fighting water pipe, the fire-fighting water pipe is installed on the rear side of the top end of the interior of the fixing frame, and the bottom of the fire-fighting water pipe communicates with a plurality of water feeding pipes. The electric telescopic rod drives the connecting pipe to rotate to the water feeding angle, water is injected into the transfer water tank through the water discharging opening and then conveyed to the main water tank through the submersible pump, dynamic balance and automatic control over the water feeding amount are achieved, and the problem that a traditional water tank is prone to icing in the low-temperature environment is effectively solved.

The invention relates to the technical field of marine natural gas hydrate exploitation, in particular to an ultra-long gravity heat pipe assisted natural gas hydrate exploitation system and method. The horizontal mining well extends to the NGH reservoir and is used for collecting natural gas; the horizontal injection well extends to the NGH reservoir and is used for injecting CO2; the directional well penetrates through the NGH reservoir and extends to the geothermal reservoir, and the section, located in the NGH reservoir, of the directional well is obliquely arranged; according to the flexible gravity assisted heat pipe, a heat-pressure-replacement three-in-one mining system is formed through the mining mode that heat exchange of the flexible gravity assisted heat pipe is combined with horizontal well pressure reduction and CO2 replacement, and the problems of reservoir cooling and secondary hydrate generation of a pressure reduction method, heat loss and interlayer pollution of a traditional heat injection method and slow dynamics and icing risks of a CO2 replacement method are solved in a targeted mode.

The invention relates to a water level measuring method and a water level measuring system. The water level measuring method comprises the following steps: step 1, acquiring a water level acquisition value through a water level sensor; 2, detecting a water level calibration signal, and after the water level calibration signal is obtained, performing water level calibration on the water level acquisition value obtained in the step 1 to obtain a calibrated water level acquisition value; 3, abnormal alarm detection is carried out on the calibrated water level collection value; 4, whether an alarm signal is obtained or not is judged, and if yes, a water level forbidding signal is generated; and if not, taking the calibrated water level acquisition value as the water level measurement value. The water level measuring method has the advantages that the water level measuring method can realize automatic timing calibration so as to realize automatic compensation and ensure that the measured water level continuously keeps high precision; in addition, abnormal alarm detection is performed on the calibrated water level acquisition value, so that the problem of false alarm caused by fluctuation caused by heavy storm waves or water level signal drifting caused by freezing of a low-temperature water surface in winter can be effectively avoided, and the accuracy of water level measurement is improved.

The application relates to the technical field of anti-icing and deicing, in particular to a self-adaptive anti-icing microclimate monitoring device which comprises an environmental data acquisition module, a control module, a heating module and a protective shell. The control module triggers the heating module to heat the protective shell based on the rainfall data, the light intensity data, the temperature data and the humidity data of the current environment collected by the environmental data acquisition module, can accurately identify icing weather, improves the judgment accuracy based on multiple influence factors, avoids invalid heating in a dry and cold environment, improves the heating efficiency, and effectively solves the icing failure problem of the microclimate monitoring device.

The application provides a bridge component anti-icing performance test method and equipment, and the system realizes multivariate simulation test on the bridge cable icing process through integration of an adjustable angle support, a test piece refrigeration bin, an ice water control module and an automatic spraying module. The method comprises the following steps: recording initial parameters of the test piece, establishing a simulated freezing rain environment, performing a cyclic spraying test, measuring icing state parameters, and calculating and evaluating a comprehensive anti-icing index based on an equivalent icing amount, an anti-icing delay coefficient and an environmental correction factor. The application can solve the technical problems of low test efficiency, high cost and lack of evaluation method in the prior art.

The invention discloses an icing wind tunnel test section flow field multi-dimensional simulation method, device and equipment and a medium. The method comprises the following steps: S1, establishing a geometric model according to an actual structure of a test section; S2, carrying out grid division on the geometric model; s3, determining a control equation and selecting a physical model; S4, defining boundary conditions of a test section computational domain; s5, utilizing aero-engine performance analysis or test data to construct an aero-engine performance agent model to be coupled with the CFD solver; and S6, transmitting data between the CFD solver and the agent model by adopting a time step-by-step iteration mode, and carrying out coupling calculation to realize multi-dimensional simulation. According to the method, the aero-engine performance agent model is introduced into icing wind tunnel flow field simulation, a high-precision and efficient numerical simulation method is developed, and then prediction and analysis of an aero-engine icing meteorological condition test simulation result are achieved.

The application provides a kind of intelligent icing weather cloud and mist parameter sensor, belongs to intelligent sensor technical field, the sensor includes fixed seat, the top of the fixed seat is equipped with conductive slip ring, the bolt connection between the conductive slip ring and fixed seat, the top of the conductive slip ring is equipped with pipeline structure, the inside of the pipeline structure is equipped with heating unit and sensing unit, the heating unit and sensing unit are all arranged on the inner wall surface of the pipeline structure.The application adopts the above-mentioned intelligent icing weather cloud and mist parameter sensor, solves the technical problems of insufficient measurement accuracy, reliability and data processing capability of existing sensors under complex weather conditions, can accurately measure weather cloud and mist parameters, and improves the accuracy and reliability of measurement by solving data through a neural network model, meets the demand of weather parameter measurement in the field of aerospace, etc.

The application relates to the technical field of icing prediction, in particular to an icing weather time series prediction method and system based on a space-time generation network. The method comprises the following steps: an airborne terminal receives in-situ data; the airborne terminal performs a light compression and packaging operation on the in-situ data to generate a light file, and sends the light file to a ground terminal; wherein the following steps are included: denoising processing is performed on the in-situ data to obtain denoised data; the denoised data is compressed by using a target compression scale to make a light file; the ground terminal receives non-in-situ data; the ground terminal predicts a first icing probability of an airplane in a future period of time by using the non-in-situ data and the light file through a time series prediction model; and the ground terminal sends the icing probability to the airborne terminal. The application can greatly reduce the data fusion difficulty of a model input end.

The application discloses an infrared identification adaptive anti-freezing control system and method for a seawater vaporizer, and belongs to the technical field of anti-freezing control and temperature monitoring. The system comprises an infrared thermal imaging unit, which is used for collecting infrared thermal images of key parts of the seawater vaporizer; a temperature sensing unit, which is used for monitoring ambient temperature and seawater inlet temperature; a control unit, which is configured to perform low-temperature abnormal point analysis on an area prone to icing, judge a current icing risk level, and generate a corresponding anti-freezing control signal; an anti-freezing execution unit, which is used for receiving the anti-freezing control signal and executing anti-freezing measures on the seawater vaporizer; a data storage and communication unit, which is used for storing temperature data, anti-freezing control signals and a reference temperature field model, and realizing remote state monitoring and alarming; and an alarm unit, which is used for triggering sound-light alarming or sending an alarm signal to a remote monitoring center when the icing risk exceeds a safety threshold or the system itself fails.

The application discloses a direct-current ice melting self-adaptive control method for non-uniform icing, and comprises the following steps: identifying the icing shape characteristics of an icing section; calculating the ice melting control parameters of non-uniform icing according to the icing shape characteristics; and carrying out segmented control on ice melting within the ice melting control parameter range; the ice melting segmented control at least comprises an initial heating stage, a dynamic current ice melting stage and a safe cooling stage. The application establishes a special ice melting control method for non-uniform icing, solves the defects that the existing ice melting technology is long-term limited by the ideal uniform cylindrical hypothesis and cannot cope with actual complex micro-meteorological environments, and establishes a refined thermal field model considering the ice ridge heat dissipation enhancement effect and the non-uniform distribution of circumferential thermal resistance, so that the ice melting current calculation error is reduced.

The utility model relates to environmental simulation test technical field, specifically disclose a kind of adjustable icing and freezing rain device based on high-low temperature damp heat test chamber;Including high-low temperature damp heat test chamber, its internal test cavity can accommodate large test samples such as aircraft wing;Rainfall device is located at the top of test cavity by moving assembly, spray unit contains adjustable spray head group, the pitch angle of atomizing nozzle in spray head group is adjustable, inside is equipped with guide vane and aperture adjustment ring;Flow control unit passes through water pump, flowmeter, water valve and air valve;Water temperature control unit utilizes water cooler to adjust water temperature.Moving assembly is composed of first, second moving frame and extension structure, bottom is equipped with moving wheel, can flexibly adjust device layout.The device is coordinated each unit by controller, and in combination with temperature, humidity and icing thickness sensor, accurately simulate icing / freezing rain environment, can accurately test large equipment resistance, functional performance and deicing equipment technical effectiveness, provide reliable technical scheme for large component test.

The invention discloses a deicing device and application thereof, the deicing device comprises a vibration assembly and a driving assembly, the vibration assembly comprises a first eccentric block and a second eccentric block, and a driving part is connected with a first rotating shaft and a second rotating shaft through a steering part to drive the first rotating shaft and the second rotating shaft to coaxially and reversely rotate. Meanwhile, the first eccentric block is connected with the second rotating shaft, and the second rotating shaft drives the first eccentric block to rotate around the axial center of the second rotating shaft. The second eccentric block is connected with the first rotating shaft which drives the second eccentric block to rotate around the axial center of the first rotating shaft. As the first rotating shaft and the second rotating shaft coaxially and reversely rotate, the first eccentric block and the second eccentric block are respectively driven to coaxially and reversely rotate. The first eccentric block and the second eccentric block drive the deicing device to vibrate in the reverse rotation process, so that the overhead transmission line coated with ice vibrates at the same time, ice blocks or frost layers are shaken off, and efficient deicing is achieved.

The application discloses an icing wind tunnel test section flow field multidimensional simulation method, device, equipment and medium, the method comprises the steps that S1, a geometric model is established according to the actual structure of test section, S2, grid division is carried out to the geometric model;S3, control equation is determined and physical model is selected, S4, the boundary condition of test section calculation domain is defined;S5, using the performance analysis or test data of aeroengine, constructs aeroengine performance proxy model and CFD solver coupling;S6, data is transmitted between CFD solver and proxy model in the way of time step iteration, and coupling calculation is carried out to realize multidimensional simulation.The application introduces aeroengine performance proxy model into icing wind tunnel flow field simulation, develops a kind of high-precision, high-efficiency numerical simulation method, and then realizes the prediction and analysis to aeroengine icing weather condition test simulation result.

A supercooled large droplet detector capable of accurately and reliably identifying and distinguishing supercooled large droplet icing weather. The supercooled large droplet detector includes a detector base and a detection structure for detecting supercooled droplets in an air flow and for identifying and distinguishing supercooled large droplet icing weather from icing weather, the detection structure having an outer layer of temperature sensor layer, an intermediate layer of electrically heated film layer, and an inner layer of structural base, the electrically heated film layer providing heating energy through a plurality of electrically heated circuits to maintain a uniform temperature on the surface of the detection structure, the temperature sensor layer having a plurality of temperature sensors, and a controller disposed in the structural base, the controller inferring an impact range of a supercooled droplet by temperature changes at a plurality of different locations caused by the supercooled droplet impacting the detection structure, and determining whether the supercooled droplet that was previously impacted was a supercooled large droplet by determining whether the impact range exceeds a critical impact range for a supercooled droplet of a critical size impacting the detection structure.

This application relates to a spray system for icing wind tunnel testing, its control method, controller, and medium. This application addresses multiple water supply branches of the spray system for icing wind tunnel testing by training a target prediction model using historical test data under multiple operating conditions. This model pre-calculates the second target opening degree of the outlet regulating valve after the solenoid valve opens the nozzle. Then, based on the on / off state signal of the solenoid valve, the outlet regulating valve is controlled to adjust to the second target opening degree. In this way, the coupling relationship between the opening ratio of the outlet regulating valve before and after the solenoid valve opens the nozzle and the steady-state parameters before the solenoid valve opens the nozzle can be learned under different test conditions. This allows for adaptation to multi-condition icing wind tunnel test scenarios, shortens the time for water supply pressure to stabilize, thereby reducing the deterioration of cloud parameters caused by excessive adjustment time and ensuring the accuracy of icing shape simulation.

The invention discloses a heat exchange equipment self-adaptive pulse deicing method and system based on multi-dimensional pressure difference characteristics, and relates to the technical field of polar region ship automation control. The invention aims to solve the problems of high energy consumption and response lag of the existing ice blockage prevention technology. The method comprises the steps that the inlet and outlet pressure difference of the heat exchange equipment is collected in real time, and the pressure difference growth rate is calculated; based on the multi-dimensional characteristics of the pressure difference value and the growth rate, the state is judged to be normal, rapid ice accumulation or serious blockage; when ice accumulation or blockage is judged, a pulse thermal shock mode is triggered, and an ice layer is stripped by utilizing thermal stress through alternate high-energy heating and fluid scouring; finally, the next round of impact parameters are adjusted in a self-adaptive mode through pressure difference feedback. Through early warning and a pulse thermal stress stripping mechanism, energy consumption is greatly reduced, meanwhile, rapid and intelligent deicing dredging is achieved, and ship navigation safety is effectively guaranteed.

The application provides a multi-branch new energy grid-connected line fault diagnosis device and method, and relates to the field of diagnosis devices, which comprises a main body, movement shafts arranged on the left and right sides of the main body, movement wheels arranged on the circumferential outer wall of the movement shafts, a motor arranged at the bottom rear side of the main body, a drive shaft arranged at the central position of the bottom of the main body, a cylindrical structure of the drive shaft, a bevel gear A arranged at the front end of the drive shaft, and mounting plates arranged on the top front and rear sides of the main body. The impurities or ice layers on the line are removed through the cooperation of the cleaning ring and the cleaning rotating ring, the existence of the impurities or ice layers on the line is avoided to affect the diagnosis of the line fault by the detection probe, the misjudgment is prevented, and the problem that the misjudgment of the diagnosis device is caused by the icing on the line due to the weather or other impurities on the surface of the line, and unnecessary troubles are brought to the subsequent use of the new energy grid-connected line are solved.