193 results about "Particle deposition" patented technology

The invention discloses an engineering vehicle multi-area environment control system based on AI, and particularly relates to the technical field of engineering vehicle environment control. Humidity, electric field, air pressure and dust multi-mode sensing arrays are arranged in multiple areas of an engineering vehicle, dust particle deposition distribution time sequence characteristics are extracted, and a deposition acceleration coefficient and a humidity response coefficient are calculated; calculating a dust deposition risk coefficient, comparing the dust deposition risk coefficient with a preset value, and marking a region exceeding a threshold value as a region in a dust deposition abnormal state; analyzing a deposition trend based on a time sequence prediction model, inputting environmental parameters, and predicting a dust deposition velocity curve of each area of the engineering vehicle in a future set time; according to the method, the static electricity, humidity, air pressure and dust coupling deposition risk is assessed in a prospective mode, a collaborative intervention strategy is triggered through a dynamic early warning threshold function, the effect of rapidly restraining the risk is achieved, and the problem that traditional single-parameter monitoring lags behind, and ventilation efficiency is suddenly reduced due to the fact that a coupling mechanism cannot be captured is effectively solved.

The invention relates to the technical field of filtering devices, in particular to an ultrafine particle filtering device with an automatic deslagging function, which comprises a filtering tank and an internal conical filtering cylinder, the upper end of the filtering cylinder is connected with a liquid inlet pipe, the lower end of the filtering cylinder is communicated with a deslagging pipe, a rotating rod is arranged in the filtering cylinder, and a flow guide wheel is fixed at the top of the rotating rod; when liquid flows in, the flow guide wheel is driven to rotate, the rotating rod is driven to rotate, a first reciprocating spiral guide groove is formed in the outer wall of the rotating rod, and the flow pushing plate moves up and down along the guide groove to push the liquid to turn over, accelerate liquid drainage and avoid particle deposition. An eccentric wheel periodically pushes the lower end of the filter cartridge under the action of a limiting spring seat, a ball head and a limiting plate, so that the filter cartridge generates self-adaptive shaking, filter hole blockage is reduced, the lower end of a rotating rod drives an ejector rod to eject an overturning plate through a second reciprocating spiral guide groove, and deposited impurities are automatically discharged through a slag discharging pipe. According to the device, coordinated actions of plug flow disturbance, shaking and automatic deslagging can be realized by utilizing liquid flow, the filtering efficiency is remarkably improved, and manual cleaning is reduced.

The invention discloses a real-time early warning method and system for precise mold production and processing, and relates to the technical field of mold processing, and the method comprises the steps: when a residual pressure disturbance energy aggregation function F1 exceeds a disturbance threshold Q1, the system automatically switches to a trend tracking mode, further calculates and outputs a flow velocity abrupt change rate variation factor F2 and a composite migration pressure difference index F3, and then outputs a flow velocity abrupt change rate variation factor F3; through second-order flow velocity derivative analysis and particle-heat flow-pressure difference coupling behavior modeling, a complex blocking trend caused by particle deposition, heat stagnation accumulation and countercurrent disturbance is effectively identified. And calculating a blockage risk index Irisk by combining the two indexes, and setting a first blockage threshold W1 and a second blockage threshold W2 to realize automatic evaluation and classified response of different blockage levels. Compared with an existing mode of only judging a single parameter of pressure, the method can analyze a blockage evolution path in multiple dimensions and output a grading result, and the risk controllability and the strategy adjustment elasticity are enhanced.

The invention discloses a double-wall blade internal particle deposition characteristic rapid prediction method based on a reduced-order model. The method comprises the steps of model establishment, grid division, numerical simulation, data set establishment and establishment of a rapid prediction model combining POD and MLP. A deep learning method is combined with an internal channel of a cooling structure, high-dimensional data are converted into low-dimensional modal coefficients representing particle deposition characteristics based on POD decomposition for three parameters of film hole diameter, air blowing ratio and temperature ratio, an MLP deep neural network method is used for fitting the modal coefficients and related parameters, a rapid prediction model is established, and a rapid prediction result is obtained. And rapid analysis and evaluation of the particle deposition rule in the blade are realized. According to the method, the particle deposition condition in the double-wall turbine blade can be effectively predicted, and certain data support and guidance are provided for design and timely cleaning of a cooling channel in the blade.

The invention provides a method for calibrating a rolling friction coefficient and surface energy in a process of simulating a ceramic membrane to filter lignin by DEM-CFD, develops a semi-analytical DEM-CFD coupling interface, and on the basis, takes movement and deposition behaviors of lignin particles in a process of filtering black liquor lignin by a single ceramic membrane pore as research objects, and provides a method for calibrating the rolling friction coefficient and the surface energy in the process of simulating the ceramic membrane to filter the black liquor lignin. The capturing mechanism of lignin particles in a ceramic membrane is researched, and it is determined that key factors influencing lignin particle deposition morphology, average coordination number, coordination number distribution and lignin particle deposition structure porosity are rolling friction coefficients and surface energy among lignin particles; the rolling friction coefficient and the surface energy between the lignin particles and the ceramic membrane have little influence on the ceramic membrane; the influence of the rolling friction coefficient among lignin particles and the surface energy parameters on the deposition morphology, coordination number and porosity of the lignin particles is comprehensively considered, calibration work of the rolling friction coefficient and the surface energy parameters is completed, and a powerful tool and accurate simulation parameters are provided for subsequent research of a membrane pollution mechanism.

A method for predicting unsteady filtering resistance of a dry type dust removal system comprises the following steps: constructing a loading fiber layer filtering resistance model by utilizing the pressure loss of a fiber collecting body; constructing a relation model between the resistance on the cleaning fiber and the resistance acting on the loaded fiber trapping body; constructing a relation model among the diameter change rate of the fiber capturing body, the filtering efficiency and the filtering time parameter; the influence of particle deposition non-uniformity is eliminated through an integral method, and a loading fiber layer filtering resistance model is solved; according to the Darcy law, constructing a relation model among the filtering resistance, the dust layer thickness and the dust layer permeability coefficient when the dust-containing airflow flows through the dust layer; a dust layer filtering resistance model is constructed and solved through the equivalent relation between the deposited dust mass and the captured dust mass; and based on the fiber layer filtration resistance model and the dust layer filtration resistance model, obtaining an unsteady state filtration resistance prediction model of the dry dust removal system. According to the method, the accuracy and practicability of unsteady filtering resistance prediction can be improved.

The invention relates to the technical field of coating preparation, in particular to a spraying process of a compact yttrium oxide coating, which comprises the steps of pretreatment, powder activation, matrix surface modification, meltallizing spraying, cooling curing, de-shielding treatment and post-cleaning. Yttrium oxide powder is activated through low-temperature plasma, sand blasting parameters and a high velocity oxy-fuel spraying process are optimized, the porosity of the coating is remarkably reduced to 1.5% or below, and the hardness is improved to 500 HV0.3. Internal stress is reduced in a sectional cooling mode, and balance of coating performance and economical efficiency is achieved in combination with a parameter optimization algorithm based on particle deposition dynamics. The preparation method can meet the requirement of the high-end semiconductor manufacturing field on a high-performance protective coating, and solves the problem of high porosity of a traditional process.

The invention discloses a micro-channel cooling turbine blade inner cavity anti-deposition bionic structure design method and system, and relates to the field of turbine blade cooling of aero-engines. The problems of optimizing the wall cooling effect, flow resistance and calculation efficiency of the micro-channel structure are solved. The method comprises the steps that parameterization design is conducted on a bionic turbulent flow structure, and characteristic geometric parameters are obtained; establishing a micro-channel three-dimensional model of the bionic fish scale structure; screening the characteristic geometric parameters as design variables, and designing upper and lower intervals of the variables; taking heat exchange, pressure drop and particle deposition of the micro-channel as optimization targets, adjusting a design variable interval, and constructing a test sample space; performing numerical calculation by using the channel model to obtain a multi-objective optimization parameter value; establishing an agent model between the optimization parameter values and the geometric characteristic parameters; and optimizing by utilizing an agent model and a multi-objective optimization algorithm to obtain the optimal geometric parameters of the bionic fish scale turbulent flow structure, so that the efficient design of the micro-channel structure and the efficient utilization of the cold air consumption are realized.

The invention relates to the technical field of superconducting quantum computing, and discloses a hole structure metallization deposition method and system, a sacrificial layer is deposited on the surface of a silicon substrate, a hole structure with a preset depth-to-width ratio is etched on a to-be-processed substrate, a substrate with the hole structure is obtained, a first metal material is used for surface deposition of the substrate with the hole structure, and a metallization deposition layer is formed on the surface of the substrate with the hole structure. The preparation method comprises the following steps: forming a hole structure on a substrate, forming a metal induction layer on the surfaces of the substrate and the hole structure to obtain a substrate with the metal induction layer, performing magnetron sputtering on the substrate with the metal induction layer by using a second metal material, and applying a magnetic field around the substrate with the metal induction layer to form a metal film on the surface of the metal induction layer, and obtaining the substrate with the hole structure subjected to metallization deposition. The metal coverage in the holes can be improved by using a metal induction mode, and the deposition uniformity of particles in the holes can be ensured by combining a magnetic field applying mode, so that a deep hole scene can be well dealt with.

The invention discloses an experimental research device and an experimental method for deposition of particles in high-temperature liquid lead bismuth, and belongs to the technical field of lead-based reactor thermotechnical waterpower. The device comprises a lead-bismuth liquid storage tank, a main loop, a test section, a sampling branch, a filtering branch, a heat exchange branch and a pipeline, the test section comprises a rod bundle structure with a winding wire, a rectangular channel with a visual window and a rectangular channel with a temperature measuring point; through the design of the test section of the device, the device can well test the influence of factors such as thermophoresis, gravity and buoyancy on particle deposition in a lead-bismuth medium, and can simulate the deposition of particles in liquid lead-bismuth on a pipeline wall surface and a reactor core rod bundle structure so as to analyze the deposition behavior of the particles in lead-bismuth; and meanwhile, basic experimental data is provided for numerical calculation in the field.

The invention discloses furnace tube equipment, and relates to the field of semiconductor manufacturing equipment, and the furnace tube equipment comprises a process tube which is internally used for forming a process region; the flange piece is arranged below the process pipe and is used for bearing the process pipe; the wafer boat is used for bearing a plurality of substrates; the sealing cover is arranged below the wafer boat and the flange piece, the sealing cover comprises an air inlet channel and a blowing part, the air inlet channel is provided with an air inlet end and an air outlet end, the air inlet end is used for receiving inlet air, the air outlet end is communicated with the blowing part, the blowing part is provided with a plurality of air holes, and the air holes are communicated with the air inlet end and the air outlet end. The plurality of air holes are arranged towards the process area, and the purging part is close to the flange piece. Particle deposition on the surfaces of the flange piece and the sealing cover can be remarkably reduced through continuous blowing of the gas, so that the pollution risk is reduced, the cleanliness of the process environment is optimized, and the cleaning frequency of the flange piece and the sealing cover can be reduced.

The invention provides a wind-break wall simulation analysis method and system for a photovoltaic power station in a desert area, and relates to the technical field of information. Wind speed gradient change data under a specific terrain are obtained by constructing a wind-sand movement simulation framework, a wind-sand movement track is simulated, and sand grain deposition distribution is analyzed; the influence of wind-break wall parameters on wind-sand flow blocking is optimized, a boundary division model of a cleaning area and a deposition area is constructed in combination with the area requirement of a photovoltaic panel cleaning area, the wind-break wall parameters are finely adjusted through an iterative optimization algorithm, and the influence of wind-sand flow dynamics on photovoltaic panel cleaning is analyzed. And finally, determining a wind-shield wall parameter configuration scheme, and generating a spatial distribution rule verification model of the wind-sand protection design. The method can effectively improve the protection effect of the photovoltaic panel in the desert area, prolong the cleaning period and improve the power generation efficiency.

The invention relates to the technical field of monitoring operation and maintenance, and discloses a method and system for monitoring operation and maintenance of equipment in a purification machine room, and the method comprises the steps: obtaining a surface deposition image of a related witness surface of a micropore array airflow component, analyzing the arrangement and construction information of a micropore array from the surface deposition image, and calculating the effective permeability of the micropore; positioning the center of the micropore according to the arrangement construction information, performing hole circumference radial statistics on the deposition intensity field, and generating a hole circumference jet flow deposition radial distribution map; within a limited microjet influence domain, calculating a microjet deposition diffusion attenuation factor based on the map; carrying out physical field coupling on the attenuation factor and the effective permeability of the micropore, analyzing a micropore flow field inertia enhancement coefficient and a macroscopic particle deposition mode weight, and further synthesizing an equipment operation comprehensive risk index; and finally, in response to the index and the permeability attenuation degree, generating an operation and maintenance strategy containing the surface clean recovery strength of the microporous panel and the airflow organization current-sharing correction amplitude.

The invention discloses a high-sulfur-content natural gas elbow sulfur particle deposition simulation experiment device and a testing method, and relates to the technical field of high-sulfur-content natural gas gathering and transportation pipeline sulfur particle dynamic deposition. The sulfur particle deposition simulation experiment device for the high-sulfur-content natural gas pipeline can simulate the dynamic deposition process of sulfur particles under various working conditions such as different flow rates of the sulfur particles, different flow rates of gas, different particle sizes of the sulfur particles, different pipeline pressures, different pipe bending angles and different pipe bending materials; through the two-stage recovery and two-stage purification scheme of the activated carbon adsorption device, the cloth bag dust collector and the secondary filter screen, the sulfur particle recovery rate is highly reliable, and the danger to the environment and testers is remarkably reduced; and through the coupling design of the micro vibrator and the sulfur particle injection device, the problem of blockage caused by sulfur particle agglomeration is effectively solved, and the manual intervention frequency is reduced.

The invention provides a turbine blade inner cavity particle deposition prevention bionic shark placoid scale structure applied to micro-channel cooling, and belongs to the field of turbulent flow structures. The problems of how to improve the flow heat exchange characteristic of the micro pipeline of the turbine blade to the maximum extent and how to reduce the influence caused by particle deposition are solved. A plurality of bionic shark placoid scale turbulent flow structures are installed on a bottom plate in the middle of the interior of the micro-fine pipeline, the bionic shark placoid scale turbulent flow structures are turbulent flow structures in a channel and are arranged in a staggered mode from the bottom of the micro-fine channel 20 mm away from an inlet, the arrangement length is 20 mm, the cross section of the bottom face of each bionic shark placoid scale turbulent flow structure is a rectangle of 1 mm * 1 mm, the maximum height is 0.6 mm, and the cross section of the bottom face of each bionic shark placoid scale turbulent flow structure is a rectangle of 1 mm * 1 mm. And an included angle of 24.6 degrees is kept between the upper surface and the bottom surface. According to the invention, along with the increase of the air flow at the inlet of the pipeline, larger particles have higher energy, are not easy to deposit due to energy loss caused by collision, and are easier to blow away due to higher flowing speed.

The utility model discloses a coating machine for compound fertilizer. The coating machine comprises a base, a supporting plate, a coating roller, a rotating shaft, a first motor, an atomizing system, an atomizing nozzle, a stirring rod, a row brush, a feeding hopper, a receiving box and a second motor. Atomizing holes are uniformly distributed in the spherical surface of the atomizing nozzle, and sprayed atomized liquid drops cover the interior of the film coating roller by 360 degrees; a row brush and a stirring rod are arranged, so that particles on the inner wall of the film coating roller are scraped and brushed away, and particle deposition or blockage is prevented; particles at the bottom of the coating roller are dispersed and stirred, so that each particle is convenient to wet; the atomizing system is adopted to generate atomized liquid drops of a coating agent, the atomized liquid drops are sprayed into the coating roller through the atomizing nozzle, the atomized liquid drops of the coating agent rapidly wet the surfaces of fertilizer particles, and coating of the atomized coating agent on the fertilizer particles is achieved. According to the utility model, the problem of non-uniform film coating caused by deposition, agglomeration or caking of fertilizer particles is solved, and the purposes of uniform film coating and improvement of film coating quality are achieved.

The invention discloses a method for cold spraying of a hard repair coating on a 7xxx-series ultrahigh-strength aluminum alloy, and relates to a method for cold spraying of a repair coating. In order to improve the performance of a cold spraying repair coating of a high-strength aluminum alloy structural part, the invention provides a method for cold spraying of a hard repair coating of a 7xxx-series ultrahigh-strength aluminum alloy, the cold spraying coating deposition is assisted by utilizing the advantage of plasma rapid heating, online heat treatment is carried out on a matrix and the coating before, during and after particle deposition, and the cold spraying repair coating of the 7xxx-series ultrahigh-strength aluminum alloy is obtained. Deposited particles, a substrate and the surface of the coating are softened under the action of plasma arc light, so that particle deposition can reach critical heat and force conditions more easily, the metallurgical bonding proportion is increased, the bonding force and compactness of the coating are improved, online heat treatment is beneficial to regulation and control of the substrate and the coating structure, and the performance of the coating is improved.

The invention discloses a surface-enhanced Raman detection method based on laser-induced deposition, and belongs to the technical field of micro-nano particle deposition and detection. According to the method disclosed by the invention, the gold nanoparticles and the to-be-detected particles are driven to be enriched and precisely deposited to a target area by utilizing laser local heating, and Raman detection is synchronously carried out, so that high-sensitivity detection on trace substances is realized. According to the method, the problems of uneven particle deposition, uncontrollable signal enhancement and the like in the traditional surface enhanced Raman scattering substrate preparation are solved, meanwhile, the requirement of an extra laser source in a traditional detection method is avoided, and integration of laser deposition and detection is realized.

The present invention relates to a miniaturized spaceborne high-energy particle detection device and method based on a silicon detector module. The detection device comprises a silicon detector module, a trigger circuit, a differential amplifier circuit, an ADC sampling circuit, an FPGA processor, a data storage unit, a data communication interface, a power conversion circuit, and a sensor bias circuit. The silicon detector module comprises a silicon semiconductor detector and a front-end preprocessing circuit arranged on the same printed circuit board. The silicon semiconductor detector converts received space charged particles into charge signals reflecting particle deposition energy, and the front-end preprocessing circuit converts the charge signals into fast and slow forming pulse signals. The trigger converts the fast forming pulse signal into a trigger signal. The differential amplifier converts the slow forming pulse signal into a differential signal. The ADC collector converts the differential signal output by the differential amplifier into a digital signal. The FPGA processor processes the digital signal output by the ADC collector and converts it into space particle energy spectrum and flux information.

The invention discloses a soil particle directional deposition sample preparation method based on magnetic / electric field regulation and control, which comprises the following steps: mixing soil particles with a functional medium which is a magnetic nanoparticle dispersion liquid or a charged surfactant solution; enabling the surfaces of the soil particles to adsorb a functional medium through ultrasound or stirring to form temporarily magnetized or charged modified particles; injecting the modified particle suspension into a deposition tank, applying a magnetic field or an electric field, and regulating the long axis direction of the modified particles to a target angle; capturing a particle deposition image in real time through a monitoring system, processing the particle deposition image and calculating a particle deposition direction by utilizing an intelligent image analysis module, and feeding back and adjusting parameters of a magnetic field or an electric field according to a processing result of the intelligent image analysis module; and after deposition is completed, removing the external field to obtain the sample with the controllable deposition angle. The method can be used for accurately preparing soil particle directional deposition samples with different deposition angles, and is simple and convenient to operate and good in repeatability.

The invention discloses a particle deposition prevention shielding piece for coating equipment, which is arranged in a coating cavity and comprises an annular upper plate and an annular lower plate, and a labyrinth type airflow channel is formed between the upper plate and the lower plate through baffles which are staggered up and down and arranged at intervals; a gap of 0-2mm exists between the outer edge of the shielding piece and the inner wall of the film coating cavity, the cavity wall of the film coating cavity is grounded, and the gap is constructed into an electron depletion region mainly comprising positive charges; according to the utility model, particles entering by mistake are intercepted through the labyrinth type channel, particles escaping along the gap are blocked through the electron depletion region, the pollution frequency of the lower cavity can be greatly reduced, and thus the downtime and the maintenance cost of equipment are reduced; the labyrinth type airflow channel and the electron depletion area are both designed in a non-blocking mode, the labyrinth type airflow channel does not hinder normal conveying of reaction gas, the electron depletion area does not affect lifting of the wafer and the shielding piece, the anti-pollution function is achieved, meanwhile, the technological rhythm of existing coating equipment is completely adapted, and the main body structure of the equipment does not need to be changed.

An apparatus for extracting and utilizing noble gases from carbonate rock includes a container body. A gas-solid separation assembly defines filter pores, and a diameter of each filter pore is micrometer-scale. A mechanical crushing assembly is disposed at a bottom of the gas-solid separation assembly, and is configured to crush a carbonate-rock sample until particles each have a size on the order of micrometers or larger. The gas-solid separation assembly is elastic. The particle deposition device is disposed inside a crushing chamber. The particle deposition device includes connecting ropes and spheres. The connecting ropes are fixed to an inner wall of the crushing chamber, and the spheres are fixed to the connecting ropes. This apparatus not only avoids the generation of large quantities of impurity components, but also separates solid carbonate-rock sample particles from the noble gases, enabling effective extraction of the noble gases from the carbonate-rock sample for utilization.

The application discloses a kind of wind-driven generator lubricating oil on-line monitoring device, belong to lubricating oil detection technical field, including on-line monitor, on-line monitor includes monitoring shell, monitoring shell is set with multiple detection stations according to detection cavity mouth position, multiple on-line monitoring sensors for detecting the lubricating oil in detection cavity mouth are set on the monitoring shell at detection station position.The application obtains the lubricating oil circulating in system by directly, regularly sampling from main circulating pipeline, guarantees that sample can truly reflect the oil state of entire lubricating system, by built-in resistance type heating layer, can preheat lubricating oil sample to standard detection temperature, effectively eliminates the interference of oil temperature change to detection result caused by the harsh environment of fan, and using ultrasonic vibration source, oil sample is mixed, prevent particle deposition, ensure oil sample uniform, to improve the accuracy of each sensor detection data.

The invention provides a treatment device for reducing ABS particle deposition in oil slurry boiler flue gas. The treatment device comprises a connecting base, a plurality of connecting rods and a plurality of connecting rods, the shell is installed at an opening in the top of the connecting base, the reinforcing plate is longitudinally installed at the top of the shell, and inclined flow guide plates are installed on the two sides of the reinforcing plate; a supporting pipe is longitudinally arranged in the lower portion of the shell, the front end of the supporting pipe penetrates out of the front end face of the shell, a reinforcing beam is longitudinally and fixedly connected to the rear end of the supporting pipe, and the rear end of the reinforcing beam penetrates out of the rear end face of the shell. A rotating shaft is vertically and rotationally arranged at the rear end of the top of the supporting pipe, the top end of the rotating shaft is rotationally connected with the bottom face of the reinforcing plate, the rotating shaft is sleeved with a treatment mechanism used for reducing ABS particle deposition, and a driving assembly used for enabling the treatment mechanism to rotate is arranged in the supporting pipe. By means of the device, ABS deposition existing in oil slurry boiler flue gas is reduced, and the influence on oil slurry boiler flue gas flowing and heat exchange performance is reduced.

The invention provides a thermal barrier coating high temperature resistance CMAS sedimentability evaluation method and system, and the method comprises the steps: preparing CMAS simulation particles with uniform particle size distribution through a spray granulation technology; spraying the CMAS to the surface of a thermal barrier coating sample to be evaluated by using a thermal spraying technology, observing the deposition state of the CMAS on the surface of the sample through a scanning electron microscope, carrying out image analysis and statistics based on the deposition state, and calculating the area deposition rate of the CMAS; performing three-dimensional shape reconstruction on the CMAS simulation particle sediment on the surface of the sample through a laser confocal microscope, and calculating the volume deposition rate of the CMAS based on reconstruction data; and comparing the area and volume deposition rate of the thermal barrier coating to be evaluated with a reference thermal barrier coating serving as a benchmark, and quantitatively evaluating the high-temperature CMAS deposition resistance of the thermal barrier coating to be evaluated. According to the method, the deposition behavior of the high-temperature CMAS on the surface of the thermal barrier coating is evaluated and measured, and the anti-CMAS performance of the thermal barrier coating in a real service environment is evaluated more accurately.

The utility model discloses a kind of coating liquid constant-temperature storage containers, relate to coating liquid storage technical field, the coating liquid constant-temperature storage container, including support frame, the top surface of support frame is equipped with storage tank, the top surface of storage tank is equipped with the full component for assisting circulation constant temperature, the inner wall of storage tank is equipped with constant-temperature cavity, the inner wall of constant-temperature cavity is connected with the input pipe and output pipe for circulation constant temperature;The full component includes stepper motor, the top surface of storage tank is installed with stepper motor, the bottom end of stepper motor is equipped with transmission rod, the outer side surface of transmission rod is equipped with rotating plate, the lower portion of rotating plate is provided with bottom plate, the side of bottom plate is equipped with scraping plate for scraping coating liquid deposited by sedimentation.The utility model is through the ring array layout of scraping plate and the and of circle arc angle, fully covers storage tank bottom in the rotating process, effectively prevents coating liquid particle deposition, and the uniformity of mixing is promoted.

The application discloses a kind of transmission line pollution on-line monitoring method and system, it is related to power system state monitoring technical field, including obtaining the multispectral polarization scattering data of transmission line insulator surface, and constructs the three-dimensional digital twin of corresponding insulator;Based on the multispectral polarization scattering data, the component type and deposition intensity of insulator surface pollution are identified, and local pollution feature vector is generated;The local pollution feature vector is matched with the three-dimensional digital twin in space, and the surface contamination state parameter of corresponding position in the three-dimensional digital twin is updated;Combined with the updated surface contamination state parameter and weather forecast data, the equivalent salt density evolution curve of insulator in future preset period is calculated through particle deposition dynamics model;Based on the equivalent salt density evolution curve, the pollution risk level distribution map of transmission line level is generated, and on-line monitoring is completed.The application improves the accuracy and timeliness of transmission line insulation state evaluation.

The invention discloses a heat exchange surface particle deposition dynamic visualization simulation analysis method, and belongs to the field of heat exchange surface particle deposition simulation.The method comprises the steps that meshing is conducted on a heat exchange surface cold surface physical model, and a sedimentable area is determined; based on the simulated working condition, setting inlet particulate matter mass concentration and environmental parameters of the flow field area; setting a simulation time length, and in each time step, carrying out the following operations: calculating a local flow field parameter based on a control equation, and outputting a particle deposition rate and a particle denudation rate; obtaining a particle net deposition rate according to the particle deposition rate and the particle denudation rate; determining a volume source item according to the particle net deposition rate; and updating the dirt layer parameter, the flow field parameter, the sedimentable area and the compact deposition area according to the volume source item. The problem that an existing method cannot truly reflect the dynamic influence of the deposition layer on the airflow flowing characteristics is solved.

The invention discloses a particle surface coating behavior process simulation method and device, equipment and a medium, and the method comprises the steps: determining current airflow field information according to historical particle field information and historical airflow field information of a limited three-dimensional space at a previous moment; in the process of determining the current particle field information corresponding to the current cycle period according to the current airflow field information and the historical particle field information, simulating the surface adhesion behavior process of the reaction particles on the base material particles by determining at least one adhesion reaction particle corresponding to the base material particles; according to the method, deposition reaction particles are determined from at least one adhesion reaction particle based on the current adhesion duration of the at least one adhesion reaction particle, and the surface deposition behavior process of the reaction particles on substrate particles is simulated. And the accuracy and universality of particle deposition calculation are improved.