30 results about "Particle erosion" patented technology

The invention discloses a test device and a test method for filling fracture seepage-erosion visualization. The test device comprises a fracture overflowing model, a fluid flow control system and an image and pressure data acquisition and analysis system. The fracture overflowing model has the appearance of a real rock fracture surface, and the opening degree can be quantitatively adjusted through a filler gauge gasket; the fluid flow control system uses a peristaltic pump and a stirrer to provide constant-flow fluid and particle input for the fracture overflowing model; according to the test device, the light transmission principle is utilized, quantitative and visual observation and research of the seepage-erosion process of the filled fracture are achieved, and form and permeability evolution data of a particle erosion area in the filled fracture are accurately obtained.

The invention discloses a particle erosion test device and method, and belongs to the technical field of particle erosion tests.The particle erosion test device comprises a clamping piece used for clamping a workpiece, a sand blasting device and a laser emitter, and the laser emitter is used for emitting laser to irradiate the workpiece so as to heat the workpiece; the particle erosion test device further comprises cooling water pipes and a vacuum pipe, the vacuum pipe is arranged outside the laser transmitter in a sleeving mode, the two opposite ends of the vacuum pipe are connected with the cooling water pipes, and the cooling water pipes are communicated with the cooling water tank. The cooling water pipe is used for introducing circulating cooling water into the vacuum pipe so as to adjust the temperature of the laser transmitter, and the air compressor sprays compressed air to the workpiece through the compressed air spraying pipe so as to cool the workpiece. Through combined use of the laser heating device and the particle erosion device, a particle erosion test in an extreme environment is stably simulated, and the effectiveness of the test is ensured.

The invention relates to an aircraft outer surface coating high temperature and wear resistance detection device, and relates to the technical field of detection devices.The aircraft outer surface coating high temperature and wear resistance detection device comprises a detection table, the interior of the detection table is divided into a high temperature simulation detection cabin and a wear simulation detection cabin through a partition plate, and a detection piece and a leak hole supporting table are arranged in the high temperature simulation detection cabin; the device further comprises a moving mechanism, a rotary friction piece and a cooling assembly, the moving mechanism is used for driving the leak hole supporting table to achieve stretching, retracting, deflection and transverse displacement, the rotary friction piece can stretch and retract and rub the to-be-detected sample piece in a line contact or surface contact mode, and the cooling assembly comprises a cooling mechanism and a stretching and retracting mechanism. The rotary friction piece has a linear contact friction mode and a surface contact friction mode, telescopic adjustment can be achieved through a fourth telescopic rod, rotation can be controlled through a first motor, dynamic conversion of contact forms of movable parts of an airplane in movement can be simulated, and abrasion detection of friction abrasion and particle erosion is achieved in cooperation with erosion simulation of a particle acceleration device.

The utility model relates to the technical field of testing of equipment erosion caused by annulus particles, and discloses an underground annulus particle erosion experiment device which comprises an annulus simulation bin, an experiment cavity is formed in the annulus simulation bin, experiment equipment is arranged in the experiment cavity, and a particle erosion arc groove is formed in the inner wall of the experiment cavity; the testing mechanisms are located at the upper end and the lower end of the annulus simulation bin, each testing mechanism comprises a bearing assembly, a pressing assembly and a rotating assembly, the bearing assemblies are located at the bottom of the annulus simulation bin, the pressing assemblies are located at the top of the annulus simulation bin, and the rotating assemblies are located in the pressing assemblies; through the arrangement of the testing mechanism, an underground annular particle erosion experiment can be simulated, the erosion effect of particles on equipment under different working conditions can be simulated through the erosion experiment, the erosion resistance and the service life of the equipment can be evaluated, a scientific basis is provided for design, material selection and maintenance of the equipment, and it is ensured that the equipment can safely and reliably operate underground.

This utility model relates to a fiber-reinforced composite polypropylene pipe. It solves the technical problems of insufficient stability in existing interlayer connections and easy wear and tear on the outer surface of the composite pipe due to particle erosion. It includes a hollow pipe body with an inner layer on its inner side, a middle layer on its outer side, and an outer layer away from the inner layer. A fixing structure is provided between the inner and middle layers, and between the middle and outer layers. The inner layer has several internally protruding ribs on its circumferentially inner side, and the outer layer has a wear-resistant surface on its circumferentially outer side, with wear-resistant parts on the wear-resistant surface. The advantages are: the fixing structure makes the pipe body structurally stable, enhancing the overall structural stability and mechanical strength of the pipe, and improving its resistance to deformation; the internally protruding ribs reduce resistance during fluid transport; and the wear-resistant parts on the outer surface of the pipe body resist friction and scratches from external objects, thereby effectively extending the service life of the pipe.

The application provides a calculation method for pipeline erosion process simulation based on large eddy simulation, which comprises the following steps: S1, meshing a geometric piece by using ICEM software; S2, setting boundary conditions and particle parameters; S3, setting a fluid calculation format; S4, setting a particle erosion model; S5, calculating by using OpenFOAM software and post-processing by using Paraview software. The application adopts large eddy simulation, and simultaneously considers the calculation cost and accuracy, especially for a bent pipe, and can better capture the secondary flow phenomenon. Moreover, the calculation method can obtain the erosion condition in advance by using the simulation method, and the actual process can be adjusted accordingly, so that the experimental cost is greatly saved.

The invention relates to an on-line measuring device and a measuring method for sample abrasion loss under a single variable condition, an impact particle swarm generation unit generates particle swarms with different impact speeds, and a measuring box is used for placing a sample and is provided with a temperature adjusting unit, a gas guide unit and a measuring unit for on-line measurement of sample quality. And the controller controls and cooperates to complete the abrasion loss test of the high-temperature oxidation sample under the variable temperature condition and the corrosion atmosphere. According to the method, the erosion rate data is calculated more accurately by monitoring the sample quality in real time, the prediction logic of the damage period caused by erosion is obtained by mastering the relationship between particle erosion and steel sheet quality change under different working conditions, and a theoretical basis is provided for equipment maintenance; the erosion weight loss of the steel sheet sample under the conditions of different particle components, impact angles and medium flow rates at high temperature can be tested, and repeated erosion experiments are performed on a single sample by testing the mass of the erosion steel sheet in real time, so that the change rule of the surface damage degree and the weight loss of the sample along with time under different working conditions is obtained.

The invention discloses a pressure-measurable arc heater high-pressure erosion test particle broadcast mixing chamber, which comprises: a mixing cavity, which is of a cylindrical tubular structure, and two end surfaces of which are provided with a plurality of through holes for circulation of a cooling liquid; the flange is connected to the mixing cavity and is used for realizing connection and sealing between the particle broadcasting and mixing chamber and other equipment and cooling the mixing cavity; the at least one filler neck is arranged on the side wall of the mixing cavity and is used for broadcasting particles into the mixing cavity; and the at least one pressure measuring filler neck is arranged in the mixing cavity and is used for measuring the pressure in the mixing cavity. According to the invention, stable operation of the particle erosion test under the conditions of high power and high arc chamber pressure can be realized, the pressure measuring function is realized, and the installation of test equipment is simplified.

The application discloses a kind of particle erosion test device and test method, belong to particle erosion test technical field, including for clamping workpiece clamping piece, sand blasting device and laser emitter, laser emitter is used to emit laser to irradiate workpiece to heat workpiece, sand blasting device is used to spray particle to workpiece to erode workpiece, particle erosion test device further includes cooling water pipe and vacuum pipe: vacuum pipe is sleeved in laser emitter outside, opposite ends of vacuum pipe are connected with cooling water pipe, cooling water pipe is communicated with cooling water tank, cooling water pipe is used to circulate cooling water into vacuum pipe to adjust the temperature of laser emitter, air compressor is sprayed compressed air to workpiece by compressed air spray pipe to cool workpiece.The application is realized by the combination use of laser heating device and particle erosion device, realizes stable simulation particle erosion test in extreme environment, guarantees the effectiveness of test.

The present application relates to the technical field of thermal protection material performance evaluation, and particularly relates to a particle scouring dynamic load calculation method based on a discrete element material model, which comprises the following steps: obtaining mechanical parameters of a thermal protection material; obtaining particle flow parameters; obtaining local surface geometric information of the thermal protection material impacted by the particles; obtaining a local surface unit normal vector and a radius of curvature; constructing a corresponding particle-surface interaction physical model; and obtaining particle scouring dynamic load based on the particle-surface interaction physical model according to the mechanical parameters of the thermal protection material, the particle flow parameters, the radius of curvature and the particle impact normal velocity. The present application calculates the dynamic load of the particle flow applied to the material surface grid on the basis of taking into account the calculation efficiency and model accuracy, and provides a new idea for the anti-particle erosion performance evaluation of engine components such as gas rudders and throat liners.

The present invention discloses a coating with high wear resistance, a preparation method and a centrifugal pump, which belongs to the technical field of coating preparation. The coating comprises the following components in weight percentage: 40-50% Ni-based self-fluxing alloy powder, 40-50% cast tungsten carbide powder, WC 13 Co alloy powder (5-15%), with the balance being YG alloy, is used. The coating produced by this invention significantly improves the hardness and wear resistance of the eroded areas of the centrifugal pump body and pump cover. Even in operating conditions characterized by severe particle erosion and wear in conveying media, such as those encountered in powder metallurgy and mining, the service life of the centrifugal pump can be extended to 4-6 times that of conventional high-chromium cast iron centrifugal pumps.

The invention provides a test method for evaluating the reliability of an EBPVD (electron beam physical vapor deposition) coating of a turbine blade of a gas turbine, which is characterized by comprising the following steps: acquiring a test blade, and coating the surface of the test blade with an EBPVD thermal barrier coating to be tested; the test blade is fixed through the supporting tool; spraying a flame flow containing particles to the surface of the test blade by using a supersonic flame gun, and simulating the working conditions of gas scouring and particle erosion; the failure form of the thermal barrier coating is observed, and testing times are recorded; and judging the reliability of the thermal barrier coating according to the failure form and the test count. According to the testing method, high-temperature and high-speed fuel gas is obtained, and the fuel gas is washed by particles and is closer to a real fuel gas incoming flow state. The high velocity oxy-fuel spray gun sprays emery to impact the blade coating area, the technological process is simpler and more efficient, the testing period is short, and the judgment standard of reliability evaluation is simple and direct.

The application discloses a kind of water turbine blade fatigue damage numerical simulation and life prediction method and related device, comprising: obtaining the three-dimensional geometric model of water turbine blade and operating condition parameter;According to the three-dimensional geometric model of the water turbine blade and operating condition parameter, fluid-structure interaction model is established, and the fluid pressure fluctuation, cavitation impact stress and sand particle erosion load distribution on the surface of blade in the operation process are extracted;According to the fluid pressure fluctuation, cavitation impact stress and sand particle erosion load distribution on the surface of blade, the equivalent stress of blade is formed;Based on the equivalent stress and cycle number, fatigue damage evolution model is constructed;According to the fatigue damage evolution model and cumulative damage theory, the fatigue damage amount of blade under different operating time is calculated, and the life prediction result is output, and the method and related device can dynamically predict the fatigue life of water turbine blade.

The invention discloses a static plasma flame ablation test system which comprises a plasma control cabinet, a switching cabinet, a plasma spray gun, a plasma power supply, a liquid material powder feeder, a powder feeder, a six-axis manipulator, a manipulator control cabinet, an infrared thermometer, a tensile machine, a cooling-water machine, an air compressor system, a freezing dryer, a nitrogen making machine, an induced draft fan and a centralized control cabinet. High-temperature ablation, particle erosion and liquid loading tests are realized; the working method of the system comprises the steps of system starting, ablated sample piece installation, ablated process control, particle erosion and liquid loading test, and tensile test and data recording and analysis after the test is completed. Parameters of the plasma spray gun are accurately regulated and controlled through the plasma control cabinet, temperature data are fed back in real time through the infrared thermometer, and the position of the spray gun is accurately adjusted through the six-axis mechanical arm. The device has the advantages of multifunctional integration, high-precision control, automatic operation, integrated design, safety, reliability and the like, and is suitable for ablation tests of various high-performance materials.

This invention provides a finite element analysis method for coating crack propagation and spalling characteristics, comprising: Step 1, establishing a particle erosion model; Step 2, assigning material properties to three components and selecting corresponding damage parameters; Step 3, assembling the model and selecting analysis; Step 4, setting contact and boundary conditions and loading methods; Step 5, meshing different components separately and selecting different mesh element types; Step 6, observing crack propagation, delamination, and failure behavior. This invention uses numerical simulation technology to reveal the surface structure and stress variation state of the coating, revealing the intrinsic relationship between crack behavior and erosion stress, clarifying the interrelationship between crack propagation behavior of protective coatings and failure modes such as delamination and spalling, thereby mastering the control method for coating crack change behavior, further guiding coating repair, reducing the repair cost of aircraft protective coatings, and showing great promise for engineering applications.

This invention discloses a method for predicting the erosion characteristics and temperature distribution of a rough thermal barrier coating surface based on adjacent grids. The method includes establishing a grid model, using a particle enrichment model suitable for thermal barrier coatings, using a thin-wall thermal resistance model that supports the dynamic thickness of the coating, establishing a particle trajectory correction method based on the slope of the adjacent grids, and setting a time magnification factor. The method considers the influence of the coating roughness characteristics in the direction of particle flow on the particle's future collision trajectory. The presence of existing particle trajectories in the opposite direction is determined based on the coating roughness characteristics, thereby accurately predicting the actual collision trajectory of the particles on the coating surface. The particle erosion model and the dynamic thin-wall thermal resistance model are combined to predict the erosion characteristics and temperature distribution of the coating surface at any time in the future. The method of the invention can predict the surface life of thermal barrier coatings to a limited extent, providing data support and guidance for thermal protection system design and equipment maintenance.

The present application relates to a kind of high pressure coal slurry conveying valve spool surface strengthening high-entropy alloy composite powder and its laser cladding method.The component of the composite powder is as follows in percentage by mass: rare earth oxide powder 0~3 wt.%, Nb powder 28.33~29.18 wt.%, the balance is CoCrFeNi pre-alloy powder.The present application uses the regulating effect of rare earth oxide in the process of laser cladding rapid solidification to change the Laves phase in CoCrFeNiNb high-entropy alloy cladding layer from coarse continuous network distribution to fine dispersed distribution by the above-mentioned powder ratio and laser cladding process, which eliminates the hidden danger of brittle peeling of coating under the condition of high-speed coal slurry particle erosion.The surface hardness of cladding layer is not less than 670 HV 0.5 , the friction coefficient is not more than 0.60, and the corrosion current density is as low as 30.36 μA·cm ‑2 , which can meet the use requirements of high pressure coal slurry conveying valve spool under the coupling condition of coal chemical plant high pressure coal slurry erosion, abrasive wear and corrosion.

The invention belongs to the technical field of water and sand erosion research, and discloses a supercritical liquid driven high-temperature and high-pressure particle swarm assessment experiment system, which comprises a high-temperature and high-pressure particle swarm simulation module, a PIV particle image velocity measurement module, a test piece, a high-speed photographing module, a strain measurement module and a temperature measurement module, and the outlet of the high-temperature and high-pressure particle swarm simulation module is connected with the high-temperature and high-pressure nozzle, and the high-temperature and high-pressure nozzle is used for spraying out the high-temperature and high-pressure particle swarm. Evaluating the vaporization degree of the supercritical liquid, shooting a high-speed image of the high-speed particle erosion material, and measuring the temperature and deformation of the test piece during erosion; the device can be used for evaluating the driving effect of supercritical liquid on high-temperature and high-pressure particle swarms, researching the erosion mechanism of the high-temperature and high-pressure particle swarms, and researching the erosion resistance of test pieces and the thermodynamic effect after erosion.

The present application relates to the technical field of inorganic glass polishing powder preparation, in particular to a long-acting anti-abrasion glass polishing powder and a preparation method thereof. The present application overcomes the problems of traditional cerium-based polishing powder, such as easy settlement and pipeline blockage during processing, and lack of long-acting anti-abrasion protection after polishing. By in-situ combination and addition of sodium lignosulfonate and double-end epoxy polyethylene glycol in the precursor liquid, cross-linking reaction is carried out, and particle settlement is inhibited by steric hindrance and electrostatic repulsion. In addition, calcium metaborate or barium metaborate is added as a boron-containing fluxing component during pyrolysis and multiphase eutectic calcination, which locks the lamellar wear-reducing component in the inorganic skeleton, and integrates the cutting phase and the lubricating phase. Finally, the continuity of the processing flow is improved, and under the shear force, the glass surface migrates to form a film to play a dynamic lubrication role, effectively reducing the scratch width and inhibiting the rise of haze after long-term sand particle erosion.

The invention discloses a titanium nitride / aluminum nitride titanium multilayer nano composite ceramic coating with high hardness and excellent particle erosion resistance, the titanium nitride / aluminum nitride titanium multilayer nano composite ceramic coating comprises a nitride layer and a titanium and aluminum nitride layer, the first titanium layer is made on a pre-nitrided surface of a base material, the second layer is in the form of an interactive nano layer of titanium and titanium nitride, and the first titanium layer is made on the pre-nitrided surface of the base material. And the third layer is also in the form of an interactive nano layer of titanium nitride and aluminum nitride, and the fourth layer is made of aluminum nitride. When transitioning from a frangible nitrided surface through a solid base nanolayer to a continuously coated aluminum nitride outer side with high chemical inertness, the conventional layer is fabricated to provide a smooth plastic change to the layer. This surface during the run-in layer provides an optimal pair of kinetic friction surfaces, thereby enhancing the durability of nanolayer coatings (TiN-AlN coatings), and typically providing any type of wear resistance, including erosion of harsh environments.

The invention discloses a particle washout composite rotary printing electrolytic machining device and method, and relates to the technical field of electrolytic machining, the particle washout composite rotary printing electrolytic machining device comprises an anode assembly, a cathode assembly and a particle washout assembly, the anode assembly drives the to-be-machined rotary component to keep a certain gap with a cathode tool in the cathode assembly and rotate reversely at the same speed, electrolyte is sprayed out from the interior of the cathode tool and is sprayed towards the to-be-machined rotary component, and meanwhile, the erosion assembly sprays solid particles towards the rotary component; a passivation film generated by a metal material easy to passivate due to electrolysis is removed in time; while rotary printing electrolytic machining is carried out on the rotary component, the erosion solid particles are synchronously coupled, the impact strengthening effect on the material surface is facilitated, meanwhile, the machining precision, the machining efficiency and the surface strength are improved, and therefore the high-quality and uniform smooth surface of rotary printing electrolytic machining easy-passivation metal is obtained.

A simulation device for testing thermal barrier coatings in combustion chambers subjected to both swirling and particle erosion includes a swirling and particle erosion flame spray gun. An electronic igniter is installed inside the spray gun to apply different environmental loads to the sample. A sliding mechanism at the bottom allows the spray gun to slide back and forth relative to the thermal barrier coating sample. An adjustable emissivity infrared detector monitors the sample surface temperature. An air compressor provides compressed air to the spray gun, and a mass flow controller regulates the compressed air flow rate. Part of the air is supplied to an air-cooled nozzle to cool the sample. An aviation kerosene storage device supplies aviation kerosene to the spray gun. A PLC controller controls the aviation kerosene and air flow rates, receives real-time temperature monitoring from the infrared detector to control the relative distance between the spray gun and the sample, and controls the electronic igniter for ignition. This invention provides a test platform for effectively evaluating the failure behavior of thermal barrier coatings in combustion chambers under the synergistic damage effects of swirling flames and erosion / corrosion particles at different fuel-to-air ratios.

The invention discloses a high-temperature particle erosion metal surface experiment device which comprises an experiment cabin, the interior of the experiment cabin is a cavity, the upper end of the experiment cabin is an opening, a box cover is matched with the opening in an overturning mode, the experiment cabin is provided with an inclined bottom face inclining towards the lower right portion, and an arc-shaped discharging groove is machined in the lower end position of the inclined bottom face. The rear end of the discharging groove inclines downwards, a sealing block is machined on the inclined bottom face, a slope face is machined on the left side of the sealing block, and the slope face inclines towards the left lower portion. The clamping device is movably installed in the experiment cabin and is matched with the sealing block, and when the clamping device transversely moves to the limiting position towards the right side, the bottom of the clamping device is sealed through the sealing block; according to the device, hot air can be recycled, hard particles can be separated, automatic recovery is achieved, and operation is safer.

The invention belongs to the technical field of coal mine underground digging and anchoring all-in-one machine transmission devices, and relates to a compact multi-stage mechanical sealing drill box which comprises a shell, a mud cover, a drill bushing, a main shaft, an inner hexagon screw, a water sealing assembly, a cylindrical roller bearing I, a stop pin I and a cylindrical roller bearing II. According to the compact multi-stage mechanical seal drilling box, a seal, a sealing ring and a shell are designed into an integrated module through a water seal assembly, and installation, disassembly and maintenance are convenient; the mechanical sealing design of the combination of the sealing static ring and the sealing moving ring is more suitable for cooling water with impurities, and has self-lubricating property and particle erosion resistance; the water sealing assembly is compact in design and smaller in axial space, original radial sealing of water sealing is changed into axial end face sealing through the design of the water sealing assembly, the surface of the main shaft is not abraded, and the service life of the main shaft is prolonged; the overflow hole is designed, when leakage occurs between seals, cooling water can be discharged through the overflow hole, and a warning effect can also be achieved when the cooling water is discharged.

The invention discloses a corrosion-resistant and wear-resistant suspender and a heat treatment method thereof, and belongs to the field of boiler parts and metal heat treatment. In order to solve the problems that an existing suspender is insufficient in molten salt corrosion resistance and particle washing resistance, uneven in large section performance and short in service life, low alloy components with specific weight percentage are designed, the low alloy components comprise 0.18-0.28% of C, 3.00-5.00% of Cr, 0.80-2.00% of Ni, 0.15-0.35% of V, 0.0010-0.0035% of B and the like, normalizing, austenitizing at the temperature of 870-910 DEG C, salt bath isothermal quenching at the temperature of 360-410 DEG C and tempering at the temperature of 500-560 DEG C are adopted, and a complex-phase structure with lower bainite as the main part is obtained. The hanger rod is remarkably improved in corrosion resistance and wear resistance, uniform in large-section performance, capable of prolonging the service life to 8-12 years, less than or equal to 20% in cost increase, compatible with an existing production line, suitable for hanging a boiler heating surface tube bundle, and outstanding in economic benefit and environmental protection benefit.

The application discloses a test device and a test method for filling fissure seepage-erosion visualization, and the test device comprises a fissure flow model, a fluid flow control system and an image and pressure data acquisition and analysis system. The fissure flow model has the topography of a real rock fissure surface, and the opening degree can be quantitatively adjusted through a plug gauge gasket; the fluid flow control system utilizes a peristaltic pump and a stirrer to provide constant flow of fluid and particle input for the fissure flow model; the test device utilizes the light transmission principle to realize quantitative and visual observation and research on the filling fissure seepage-erosion process, and accurately obtains the particle erosion area shape and the permeability evolution data in the filling fissure.

The invention discloses a single-particle erosive wear online monitoring device based on a three-dimensional holographic technology, relates to the field of particle erosion, and is used for measuring the relationship between single-particle erosion and impact crater morphology, depth and erosive wear rate under different working conditions. According to the technical scheme, the device comprises a metal sample heating and oxidizing device used for heating a metal sample and setting the heating temperature and time; the impact particle impact speed measuring system comprises a single particle emitter used for emitting single particles and a single particle erosion impact speed measuring assembly used for measuring and recording the single particle erosion impact speed; and the surface topography measuring system is used for measuring the surface topography of the metal sample subjected to erosion-oxidation in situ by adopting interferometry.

The invention relates to the technical field of erosive wear experimental devices, and discloses a novel pneumatic multi-particle continuous ejection experimental system, which comprises an experimental base station, a replacement mechanism is arranged on the experimental base station, the replacement mechanism is used for replacing the position of a particle carrier clamping device, a feeding mechanism is arranged on the experimental base station, and the feeding mechanism is used for feeding the particle carrier clamping device into the experimental base station. The novel pneumatic type multi-particle continuous ejection experiment system can solve the problems that incidence parameters in the particle erosion process are uncontrollable, repeated erosion characteristic research of multiple particles under the same or different incidence conditions cannot be carried out and the like, research variables are controllable, and the particles can complete impact on a target body according to the preset incidence conditions; according to the method, researchers are helped to reveal the corresponding relation between the movement rebound behavior of the particles and the material surface damage mechanism under different incidence conditions and the accumulated damage stripping mechanism of the material in the repeated erosion process, and then primary and secondary factors influencing material removal are determined, so that the researchers can conveniently put forward better improvement measures.

The present invention provides a particle erosion simulation experimental device for a wellhead acquisition device. The inlet of the main pipeline is respectively connected to the outlet of the gas circulation pipeline and the outlet of the liquid circulation pipeline. The outlet of the main pipeline is respectively connected to the inlet of the first branch pipeline and the inlet of the second branch pipeline. The experimental chamber is connected to the main pipeline. The outlet of the first branch pipeline is connected to the waste gas treatment device, and the outlet of the second branch pipeline is connected to the liquid storage tank. The inlet of the liquid circulation pipeline is connected to the liquid storage tank, and the inlet of the gas circulation pipeline is connected to an air compressor. A particle adder is connected to the gas circulation pipeline, and a liquid pump is connected to the liquid circulation pipeline. An image acquisition device is installed outside the experimental chamber corresponding to the position of the image acquisition device and is electrically connected to a computer. The present invention can conduct simulation experiments on the erosion and wear of the wellhead acquisition device by liquid-solid two-phase fluid, gas-solid two-phase fluid, and gas-liquid-solid three-phase fluid.

This invention relates to a fish slurry concentration device and its concentration process, belonging to the field of fish slurry concentration technology. It overcomes the shortcomings of traditional flange-sealing ring structures by employing a quick-release sealing assembly. This assembly, through the coordinated design of a vertical sliding part, a rotating part, a conical sealing part, and a roller guide part, achieves a self-locking seal by automatically rotating horizontally to fit against the inner wall of the pipe after vertical insertion, eliminating the need for bolt fastening. The self-locking mechanism uses the radial force component of the conical sealing part to apply pressure evenly, avoiding leakage caused by uneven preload. The roller guide part converts sliding friction into rolling friction, reducing disassembly resistance and minimizing damage to the sealing surface. The combination design of the trapezoidal sealing ring and the elastic ring can adapt to high-temperature expansion and corrosive environments, mitigating the effects of particle erosion and thermal stress, eliminating the risk of damage to the sealing surface from repeated disassembly, and simplifying the operation process.