109 results about "Particle deposition" patented technology

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 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 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.

This application provides a simulation system and method for the AC characteristics of vacuum diodes based on a physical information neural network, belonging to the field of numerical simulation technology for electronic devices. The system includes a particle injection module, a particle deposition module, a Poisson equation solving module, an electric field calculation module, and a particle propulsion module. The particle injection module continuously injects electron particles; the particle deposition module maps particle information to a grid and calculates the electron density; the Poisson equation solving module uses a physical information neural network method to solve for the potential distribution based on the electron density; the electric field calculation module obtains the spatial electric field; and the particle propulsion module updates the particle velocity and position, forming a self-consistent coupled simulation. This application achieves continuous and smooth potential solutions through hard constraint embedding of boundary conditions, two-stage optimization, and loss scale adjustment mechanisms, reducing grid dependence and improving computational accuracy and efficiency. It is suitable for numerical simulation of vacuum electronic devices, electron beam systems, and space charge transport problems.

The application discloses a heat pipe condensing section anti-particle deposition system and relates to the fields of energy sources including nuclear energy and mechanical equipment, and solves the technical problem of particle deposition in a heat pipe and influence on heat exchange efficiency, and the technical scheme is as follows: the main part of the heat pipe is a condensing section, further comprising an evaporating section and an adiabatic section between the condensing section and the evaporating section; a wick is arranged in the pipe body, and a working medium is filled and circulated in the pipe body. A special structure is designed on the inner and outer surfaces of the condensing section, the flow rate of the fluid can be changed, the fluid is disturbed, the fine particles in the fluid collide, the deposition rate of the fine particles is reduced, and the heat transfer outside the pipe is enhanced. The application is suitable for heat pipe systems related to energy sources including mobile small reactors, and can be widely applied to the fields of space, deep sea, medical emergency energy and the like.

The invention relates to the technical field of shield tunnel construction, in particular to an underground structure compaction grouting permeation filtration diffusion time-varying analysis system and method.The method comprises the following steps that a grouting pressure and grouting time relation calculation model is built, and construction parameters are obtained; inputting the obtained construction parameters into a constructed grouting pressure and grouting time relation calculation model; the situation that the grouting pressure changes along with the grouting time and considering the deep percolation effect and the slurry viscosity time-varying characteristic at the same time, the situation that the grouting pressure changes along with the grouting time and considering the deep percolation effect independently and the situation that the grouting pressure changes along with the grouting time and considering the viscosity time-varying characteristic independently are obtained through calculation and output. According to the method, the pore blocking effect caused by particle deposition of the slurry in the soil body and the dynamic change of the slurry viscosity along with time are coupled, and the influence of the deep percolation effect and the time-varying property of the slurry viscosity on the permeation and diffusion of the slurry is considered at the same time.

The utility model discloses a sedimentation tank for recycling PCB waste etching liquid, and relates to the technical field of PCB waste etching liquid recycling, the sedimentation tank comprises a sedimentation tank body, one end of the bottom wall of the sedimentation tank body is provided with a stand column, the top end of the stand column is movably provided with a first hinge seat, the top of the first hinge seat is provided with a filter box, and the filter box is in a right trapezoid shape; waste liquid is filtered through the arranged turnable filtering box, the obliquely arranged filtering box facilitates natural flowing and filtering of the liquid, the multiple sets of filtering sieve plates with the sieve hole diameters gradually reduced from top to bottom are arranged in the filtering box, a multi-stage filtering structure is formed, copper particles with different diameters in the waste etching liquid are effectively intercepted, and the copper particles are effectively filtered. According to the device, copper particles are prevented from being deposited in a sedimentation tank, great convenience is provided for subsequent extraction and storage of waste liquid, the inclination angle of the filter box can be flexibly adjusted through the arranged movable storage sleeve and telescopic rod, and the device can meet the filtering requirements under different working conditions.

The invention discloses a method for optimizing a lead-bismuth venturi flow meter with ferroferric oxide particle deposition intervened by a magnetic field. The method comprises the following optimization steps: constructing a parameterized three-dimensional geometric model of the venturi flow meter; performing grid division on the model in computational fluid dynamics (CFD) software, and setting a multiphase flow model and a discrete phase model; compiling UDF for dynamically applying a virtual magnetic field in the flow field area of the tapered fillet section in the CFD solving process; the UDF is loaded, the virtual magnetic field serves as a source item to be coupled to a control equation of the fluid and the particle phase, and the influence of the virtual magnetic field on the particle motion trail is simulated; obtaining and analyzing the motion trail of the particles and the particle deposition amount of the fillet transition structure; based on an analysis result, adjusting the next one or more optimization variables and iteratively executing the steps until the particle deposition amount meets a preset requirement; according to the method, a virtual magnetic field which can be flexibly regulated and controlled is introduced by embedding a user-defined function, and an efficient simulation tool and a theoretical basis are provided for collaborative optimization of a flowmeter structure and a deposition suppression strategy.

The invention relates to a solar cell and a preparation method thereof. The preparation method comprises the following steps: depositing an electrode base layer on a battery piece through a magnetron sputtering process, and controlling the magnetic field intensity on the surface of a target material to be gradually increased in the process of the magnetron sputtering process. According to the preparation method of the solar cell, the electrode base layer is prepared through magnetron sputtering, in the initial stage, the magnetic field intensity of the surface of the target material is low, the energy of sputtering particles is low, the deposition kinetic energy is low, and damage to the surface of the cell caused by particle bombardment is reduced. And then the magnetic field intensity of the surface of the target material is gradually increased in the sputtering coating process, as the influence of particle deposition kinetic energy on the surface of the battery piece is reduced along with the thickening of the metal film layer, the damage to the battery piece can be reduced through the sputtering mode that the magnetic field intensity of the surface of the target material is gradually increased, the sputtering rate is increased, and the production efficiency is improved. Compared with a mode of reducing sputtering power density, the preparation method can obtain an electrode film layer with higher density and better adhesive force.

The invention discloses a medical ozone water production and preparation premixing device and method, and relates to the technical field of mixing, the medical ozone water production and preparation premixing device comprises a tank body, a connecting pipe circulates at the top of the tank body, a suction port is formed in one side of the connecting pipe, and a jet pipe is communicated with the side, close to the suction port, of the connecting pipe; a flow channel of the jet pipe is gradually narrowed from an inlet to an outlet, the connecting pipe and the jet pipe form a Venturi jet device structure, a fixing block is fixedly connected to the side, close to the outlet of the jet pipe, of the outer portion of the connecting pipe, and a lifting flushing frame is connected to the fixing block in a sliding mode. By arranging the lifting flushing frame and the back flushing tank, back flushing operation can be manually or automatically executed when flow is abnormal, high-pressure water is used for reversely impacting the throat pipe section, scale or microparticle deposition is removed, blockage of the throat pipe section is effectively prevented, the operation stability is improved, the equipment maintenance period is prolonged, and continuous and stable production of ozone water is guaranteed.

Disclosed is a method for deposition formation of deposits within an immersion region, comprising:-receiving a sedimentary facies classification and a sedimentary environment classification; -simulating the evolution of the topography of the submerged deposition area over time, comprising: defining a model of the submerged deposition area, the model having an earth surface, a plurality of deposit supply or generation processes and at least one water flow to be simulated; simulating a formation in which at least one deposit is deposited on the earth surface over a time period, including: introducing particulate deposits into a model; conveying at least one particle by applying a water flow, wherein the conveying comprises displacing or depositing the particle onto the earth surface; and recording data about the deposited particles; and updating the terrain of the earth surface. For at least one unit of the sedimentary formation, associating the unit with the sedimentary facies and the sedimentary environment based on a comparison of the recorded data with the sedimentary facies classification and the sedimentary environment classification.

The invention relates to a high-temperature oil slurry pump, in particular to a high-temperature oil slurry pump capable of automatically flushing medium particles and a flushing method and an assembling method of the high-temperature oil slurry pump, which are used for solving the problems of the existing high-temperature oil slurry pump that the medium particles are difficult to automatically discharge, so that the end surfaces of movable and static rings in a mechanical seal assembly are abnormally abraded, the elasticity of a spring is invalid, and mechanical seal leakage is finally caused. And the long-period safe operation of the pump is seriously influenced. The floating sealing ring is arranged on the mechanical seal end cover, and a 0.15-0.2 mm unilateral radial gap is formed between the floating sealing ring and the impeller hub, so that particle interception is enhanced; an independent backflow pipeline with a valve is connected between the mechanical seal cavity and the pump inlet, and the intruded particles are automatically sucked back to the pump inlet by using the operation pressure difference; and the end face of the mechanical sealing assembly is arranged in the sealing cavity, so that the mechanical sealing assembly is isolated from the particles. The mechanical seal cavity is continuously and automatically cleaned, particle deposition is fundamentally prevented, the operation reliability of a mechanical seal assembly in a high-solid-content oil slurry medium at the temperature of 350-420 DEG C is remarkably improved, and the service life of the mechanical seal assembly is remarkably prolonged.

The utility model discloses a kind of drying devices. Drying device includes drying cavity, filtering mechanism, outer circulation heating pipeline and heating mechanism, the filtering mechanism is installed in the air inlet end of the drying cavity, the outer circulation heating pipeline is located in the outside of the drying cavity, one end of the outer circulation heating pipeline is connected to the filtering mechanism and another end is connected to the air outlet end of the drying cavity, the outer circulation heating pipeline realizes the airflow circulation in the drying cavity, the heating mechanism is installed on the outer circulation heating pipeline to be used for heating outer circulation heating pipeline. The present application can dry silicon wafer, can avoid particle deposition on the surface of silicon wafer, improve the cleanliness of the surface of silicon wafer, improve drying efficiency.

The utility model discloses a device for realizing anti-deposition material transfer of a solid-containing solution in AKD (Alkyl Ketene Dimer) production, which comprises a material storage container, a turbulent flow inner cylinder is arranged in the material storage container, the top of the turbulent flow inner cylinder is fixedly connected with the top of the material storage container, the bottom of the turbulent flow inner cylinder is suspended, and a plurality of turbulent flow holes are uniformly distributed on the cylinder wall of the turbulent flow inner cylinder; an ultrasonic vibration assembly; a bottom stirring assembly; a transfer pump; the turbulent flow inner barrel in the material storage container can change the flowing path and speed of a solid-containing solution, the turbulent flow effect is enhanced, solid particles are effectively prevented from depositing at the bottom of the container and the barrel wall, and meanwhile, the material storage container has the advantages of being simple in structure, convenient to operate and high in practicability. The ultrasonic vibrator on the outer side wall further inhibits particle deposition through ultrasonic vibration, the stirring assembly at the bottom ensures that the solution is uniform during discharging, and the mixing element efficiently divides, shears and mixes the solution in the rotating process, so that the solid-containing solution is always kept in a uniform state in the whole material transferring process.

The application discloses a coarse particle flotation machine, and particularly relates to the technical field of flotation machines, which comprises a flotation bin, a flotation mechanism, a driving mechanism, a scraping mechanism and a feeding mechanism, and further comprises a protection mechanism and a deposition treatment mechanism. Through the arrangement of the protection mechanism, the first jetting ports arranged in an inclined manner can spray upwardly moving rotating air flow to the inner wall of the flotation bin during the working process of the flotation machine. On the one hand, the coarse particles can be effectively reduced in deposition at the bottom or the corners, and when the coarse particles sink due to gravity, the upwardly moving rotating air flow can push the particles to move along a spiral track, prolong the residence time of the particles in the bubble enrichment area, and increase the collision frequency of the particles and the bubbles. On the other hand, the sprayed gas can form bubbles, the bubbles can collide with the coarse particles in the ore pulp, provide buoyancy for the upward floating of the coarse particles, reduce the deposition of the particles, and thus improve the recovery rate of the coarse particles and the flotation efficiency.

The utility model relates to the field of waste gas purification devices, and discloses an organic waste gas purifier which comprises a treatment box, a partition plate is fixedly connected to the interior of the treatment box, first fixing plates are fixedly connected to the front side wall and the rear side wall of the left side of the interior of the treatment box, and hydraulic cylinders are arranged on the front side walls and the rear side walls of the four first fixing plates. And connecting blocks are fixedly connected to the outer sides of the bottom ends of the telescopic ends of the four hydraulic cylinders. Through the arrangement of the first fixing plate, the hydraulic cylinder, the suction pump and the transfer pipe, the problems that large-particle-size liquid drops are prone to settling, fine particulate matter or gaseous pollutants cannot be effectively captured, and the operation cost is increased can be solved, when the telescopic end of the hydraulic cylinder retracts upwards, a connecting block drives a first hinge frame to move upwards, and therefore the large-particle-size liquid drops can be effectively captured. The support rod rotates to enable the second connecting rod to rotate upwards and reset, so that solid particle deposition is effectively reduced, the equipment maintenance period is prolonged, the subsequent sewage treatment cost is reduced, and the equipment service life is prolonged.

The application discloses a kind of coupling molecular dynamics first principle's gas cooled reactor cladding surface particle adsorption calculation method, steps are as follows: (1) based on computational fluid dynamics and particle discrete phase model establishes numerical simulation framework, including cladding, break, flow channel modeling, grid drawing, boundary condition setting;(2) according to the first principle of molecular dynamics, the binding surface energy of fission product molecules released into the gas gap and the cladding material molecular base is calculated;(3) establish the particle deposition model including particle's own attribute, effective modulus, relaxation time and surface energy;(4) the binding surface energy is implanted into the particle deposition model, and the particle deposition model is used as the wall boundary, and the gas-solid two-way coupling calculation of particle deposition is carried out.The method solves the problem that traditional macroscopic model depends on empirical parameters, realizes high-precision simulation based on physical mechanism, reveals the mechanism of micro-interface properties on macroscopic deposition behavior, and predicts complex deposition morphology.

The invention discloses a power transmission line pollution online monitoring method and system, and relates to the technical field of power system state monitoring, and the method comprises the steps: obtaining multispectral polarization scattering data of the surface of a power transmission line insulator, and constructing a three-dimensional digital twinborn body corresponding to the insulator; based on the multispectral polarization scattering data, identifying the component type and deposition intensity of the insulator surface dirt, and generating a local dirt feature vector; performing space matching on the local pollution feature vector and the three-dimensional digital twinborn body, and updating surface pollution state parameters of corresponding positions in the three-dimensional digital twinborn body; calculating an equivalent salt deposit density evolution curve of the insulator in a future preset time period through a particle deposition kinetic model in combination with the updated surface pollution state parameters and weather forecast data; and on the basis of the equivalent salt deposit density evolution curve, generating a pollution risk grade distribution diagram of a power transmission line level, and completing on-line monitoring. According to the invention, the accuracy and timeliness of power transmission line insulation state evaluation are improved.

This application provides a microalgae particle culturer and system for carbon capture. The microalgae particle culturer for carbon capture includes a tank, a first guide tube, and a second guide tube. The tank has a bottom inlet pipe and an upper overflow port. The first guide tube is coaxially located in the middle of the tank, with its bottom opposite the inlet pipe and forming a flow gap with the bottom of the tank. A guide member is located above the top of the first guide tube, below the overflow port, forming a flow gap with it. The top of the second guide tube is fixed to the top wall of the tank, and its bottom is fitted around the outer periphery of the first guide tube, forming flow gaps with both the inner wall of the tank and the first guide tube. At least one of the tank, the first guide tube, or the second guide tube contains a lighting component. This application achieves efficient particle culture, convenient harvesting, and carbon fixation by constructing a stable reflux channel, inducing particle deposition, promoting microalgae suspension and particle aggregation, and providing directional supplemental lighting to improve photosynthetic efficiency and enhance CO2 absorption in the water.

The utility model discloses a processing lathe convenient to clearance, including body mechanism and solid -liquid separation mechanism, the body mechanism includes operation panel, waste outlet and filter unit, the waste outlet is established on operation panel in the mode of down and up through -punching, the filter unit is installed in the waste outlet and is used for filtering to big swarf, the solid -liquid separation mechanism includes liquid collecting tank, solid -liquid separation unit and deposit cleaning unit, the liquid collecting tank fixed connection is in operation panel's bottom, and the liquid collecting tank is installed below the waste outlet, the utility model discloses being provided with solid -liquid separation mechanism, and the swarf and coolant produced when lathe processing enter solid -liquid separation mechanism, and the swarf and coolant are separated through solid -liquid separation unit, and the coolant is recovered and used after the particle deposition in the liquid collecting tank, thereby realizing the recovery and use of coolant and avoiding the silt breeding bacteria at the same time, improve the working environment and improve the equipment life.

The invention discloses a device and a method for depositing crystal particles in flowing liquid lead-bismuth alloy. The device comprises a particle deposition tank, liquid lead-bismuth alloy and corrosion product powder are loaded in the tank, and an extraction opening, a sampling opening and a stirring opening are formed in a top cover of the particle deposition tank; a first purification opening and a second purification opening are formed in the lower part of the tank body; the vacuum pump is communicated with the extraction opening; a machine body of the stirrer is fixedly mounted on the stirring opening, and a transmission shaft of the stirrer penetrates through the stirring opening and is arranged in the particle deposition tank; one part of the deposition system penetrates through the stirring opening and is arranged inside the particle deposition tank, and the other part of the deposition system is arranged outside the particle deposition tank; and the two ends of the lead-bismuth purification system communicate with the first purification opening and the second purification opening correspondingly. Efficient directional deposition and mixing of corrosion product powder in the liquid lead bismuth alloy are achieved, the electric heating wire and a deposition system are combined, the experiment temperature, the oxygen control environment and the cooling water flow are accurately controlled, and the stability of experiment conditions is ensured.

A micro-particle deposition morphology dynamic prediction method comprises the following steps: based on a micro-particle energy dissipation collision theory and a particle stripping model, establishing a particle-wall surface collision deposition calculation method and compiling a collision deposition calculation program; the microparticle energy dissipation collision theory is used for calculating a normal collision recovery coefficient and a tangential collision recovery coefficient of collision between microparticles and a wall surface, and the particle stripping model is used for providing a criterion for judging whether the microparticles are stably deposited or not; a grid distribution strategy of the particle volume is provided, and the grid distribution strategy of the particle volume is used for determining the moving direction and the moving height of grid nodes of a deposition face according to the particle deposition condition so as to simulate formation and growth of a deposition layer and dynamically update the particle deposition morphology. According to the method, a particle-wall surface collision deposition calculation method is established based on a microparticle energy dissipation collision theory, the deposition morphology of particles in a complex transportation channel can be accurately predicted, and the method has the advantages of being high in simulation calculation speed, high in precision, visual and the like.

The invention relates to a particle visual deposition collision experiment device which comprises a high-level water tank, a material storage tank and a circulating experiment system which are sequentially connected in series. The circulating experiment system comprises a water pump, a heating section and a test section; the front end of the heating section is provided with a third valve, the front end of the test section is provided with a flow meter, the front end of the water pump is provided with a fifth valve, and the rear end of the water pump is provided with a second valve; a sixth valve is arranged at the front end of the high-level water tank; the high-level water tank is used for exhausting and is a solution-free empty tank body before the water pump is started; a first valve is arranged at the rear end of the storage tank; a glycerol aqueous solution with adjustable dynamic viscosity is stored in the storage tank; the test section is of a transparent body structure, and the particle deposition amount and the particle collision behavior of the wall surface are obtained through photographing and speed measurement.