88 results about "Fluid shear" patented technology

The invention belongs to the technical field of cold-rolled sheet processing, and particularly relates to a physical defoaming alkali liquor circulation method which comprises the following steps: a foam capacitive monitoring array at the top of an alkali liquor tank generates a foam thickness gradient map in real time; real-time alkali liquor temperature, conductivity, circulating flow, strip steel running speed and historical foam thickness data are fused, a foam layer height prediction value is output, and when the prediction value exceeds a safety threshold value, a turbulence generator is automatically triggered to generate high-frequency pulse water flow; when the foam finally flows downwards to the top opening of the alkali liquor tank through the foam overflow pipe, the foam is crushed by high-frequency pulse water flow in the alkali liquor backflow pipeline and becomes alkali liquor to drop into the alkali liquor tank, the foam is physically crushed through fluid shear force and high-frequency vibration under the synergistic effect of the sectional type backflow pipeline and the capacitive foam monitoring array, the defoaming efficiency is high, and the defoaming effect is good. Dependent chemical defoaming agents are reduced, and the problems of strip steel surface residues and wastewater treatment are solved.

The invention belongs to the technical field of petrochemical equipment, and provides a continuous flow control type closed decoking flow-limiting valve which comprises a valve body, a first composite valve element and a second composite valve element. The first composite valve core comprises a first valve plate, a first valve core, a first driving mechanism and the like; the second composite valve element and the first composite valve element are symmetrical. According to the flow-limiting valve, the through grooves of the first combined valve element and the second combined valve element jointly form a small valve hole, the first driving mechanism drives the first connecting rod to move to drive the first transmission rod and the first valve element to move, and therefore the small valve hole can be opened. The first driving mechanism drives the first connecting rod to continue to move until the first transmission rod abuts against the first limiting ring and drives the first valve plate to move, and then the large valve hole can be opened. Equipment is arranged at the position of a small valve hole during flow limiting, and is arranged at the position of a large valve hole during coke cutting, so that the problem that the fluid shear force cannot be dynamically adjusted to inhibit coking due to the adoption of a fixed flow limiting hole diameter in a traditional plate type flow limiting valve is effectively solved.

The invention belongs to the technical field of graphene preparation, and particularly discloses a graphene preparation method and device based on coupling of an ultrasonic phased array and a micro-fluidic chip, and the preparation method comprises the following steps: graphite oxide dispersion liquid enters a micro-fluidic main channel through a sample inlet of the micro-fluidic chip; in a standing wave sound field and a laminar flow state of an ultrasonic phased array, stripping the graphite oxide dispersion liquid through a micro-jet shear force generated by a cavitation effect of the standing wave sound field to obtain a graphene oxide sheet layer; graphene oxide lamellas are synchronously separated to a specified separation flow channel through fluid shear force generated by a micro-channel contraction section and an inertia focusing effect caused by curvature of an arc-shaped separation section, and non-single-layer graphene oxide lamellas are separated to a flow channel. The proportion of the single-layer graphene obtained by the preparation method provided by the invention is as high as 95%, and the problem of microchannel blockage can be relieved.

The invention relates to the technical field of viscose staple fiber production, in particular to a defoaming device for improving the defoaming efficiency of viscose staple fiber production and a production process, the defoaming device comprises a defoaming barrel, a detachable filler barrel group and a linkage driving system, the top of the defoaming barrel is provided with a sealing assembly, and the interior of the defoaming barrel is of a modular two-stage structure. The first filling barrel is connected with the clamping mechanism through the limiting rod, and the driving assembly drives the clamping plate to be quickly locked. The second filling barrel is in linkage with the clamping mechanism through the sliding rod and is matched with the pressing ring to achieve assembly, the mechanical linkage design of the limiting block and the clamping rod is adopted for the connecting assembly, and tool-free disassembly and assembly are supported. In the aspect of the production process, the two-stage spiral filler strengthens the fluid shear force, prolongs the flow path and improves the defoaming efficiency; the modular design facilitates cleaning of deposited scales, and traditional cutting maintenance is avoided. The sealing assembly is combined with a waste gas condensation recovery system, energy consumption is reduced, and waste gas emission is controlled. According to the scheme, through structural innovation and process integration, the maintenance cost is reduced, the fiber quality is guaranteed, and efficient, continuous and environment-friendly operation is achieved.

The application relates to the technical field of biological sample pretreatment, and discloses a high-efficiency separation method of a tissue cell extraction device. The method comprises the following steps: performing parameter calibration and reference loss modeling of a driving motor, and eliminating background interference of an actuator; applying a disturbance signal to a dissociation chamber, locking the characteristic resonance frequency of a tissue sample through frequency domain energy analysis, and performing pulsating crushing to accelerate the dissociation of a matrix structure; extracting the net torque of the motor in real time, deducing the fluid dynamic viscosity, adaptively adjusting the motor speed according to the viscosity drop trend, maintaining the fluid shear force in a preset target interval, and avoiding mechanical damage to cells; calculating the mechanical energy dissipation power in real time, and performing feedforward temperature control compensation to eliminate temperature overshoot caused by thermal conduction lag. The application realizes closed-loop control of the physical phase evolution of a heterogeneous tissue dissociation process, solves the limitation of a fixed parameter in a traditional method, shortens the dissociation time, and significantly improves the single-cell yield and survival rate.

The utility model provides a liquid mixing bottle with a self-cleaning function, which is characterized in that the top of a bottle body is locked with an extension ring butt-joint thread II of a connecting cover through a butt-joint thread I to form primary sealing, and a fixing ring at the top of the connecting cover is locked with a bottle opening thread II at the bottom of a bottle opening through a bottle opening thread I to form secondary sealing; a V-shaped spiral flow guide strip is arranged on the inner wall of the bottle body, a gap is kept between the highest point of the flow guide strip and the bottle wall to form a capillary channel, the inner wall inclined face of the connecting cover is seamlessly connected with the outlet end of the flow guide strip to form a continuous flow guide path, and the spiral washing effect can be triggered to achieve self-cleaning when liquid is poured. A hydrophobic nano-coating is arranged on the inner wall of the liquid outlet hopper, and the inclination angle is larger than the inclined surface of the connecting cover; the flow guide strip extension design of the extension ring and the fixed ring ensures no dead angle of mixing, the modular thread structure supports rapid disassembly and maintenance, and the inclination angle of the flow guide strip and the curvature of the bottle body are coupled to optimize the fluid shear force.

This invention discloses an electronic-grade reinforced textile fiberglass cloth product and its production method, belonging to the field of high-performance PCB and copper-clad laminate substrates. The fiberglass cloth is woven from warp yarns and flat-section weft yarns, with a reactive impregnation layer covering the surface of each glass fiber monofilament. Two-dimensional sheet-like nanofillers, preferentially parallel-oriented along the fiber axis, are dispersed within this layer. The production method achieves axial orientation of the nanofillers through a fluid shearing and external field synergistic coating process, followed by low-temperature conditioning to form a semi-cured state and lock the orientation structure. This invention eliminates the need for high-temperature heat cleaning, maximizing the preservation of the fiber's original strength. Furthermore, the synergistic effect of the macroscopically dense weft yarns and the microscopically oriented thermally conductive network of the nanofillers significantly improves the in-plane thermal conductivity of the substrate and reduces dielectric loss, solving the thermal resistance and warping problems caused by resin enrichment at the interlacing points of traditional fiberglass cloth.

This invention discloses a high-strength composite membrane with a multi-barrier structure and its preparation process, belonging to the field of composite membrane preparation technology. It addresses the technical problem that the barrier and tensile properties of existing composite membranes need further improvement. Specifically, it includes the following steps: uniformly coating a carboxyl-rich polysaccharide graft copolymer solution onto the surface of a release PET film, drying it to a moisture content of 15-20% to obtain a matrix layer. This invention sequentially coats carboxyl-rich polysaccharides to construct a highly active matrix, sprays zirconium phytate sol at the interface to induce coordination crosslinking, then coats dopamine-modified MXene and uses fluid shear force to achieve highly parallel orientation of nanosheets. Finally, it removes micropores through segmented vacuum hot pressing and deeply cures the membrane. This integrates interfacial chemical anchoring, forced shear orientation, and thermal coupling densification, constructing a dense three-dimensional interpenetrating barrier network in situ, synergistically improving the tensile strength and gas-liquid shielding performance of the composite membrane.

The utility model belongs to the technical field of petrochemical equipment, and provides a continuous flow control type closed decoking flow-limiting valve which comprises a valve body, a first composite valve element and a second composite valve element. The first composite valve core comprises a first valve plate, a first valve core, a first driving mechanism and the like; the second composite valve element and the first composite valve element are symmetrical. According to the flow-limiting valve, the through grooves of the first combined valve element and the second combined valve element jointly form a small valve hole, the first driving mechanism drives the first connecting rod to move to drive the first transmission rod and the first valve element to move, and therefore the small valve hole can be opened. The first driving mechanism drives the first connecting rod to continue to move until the first transmission rod abuts against the first limiting ring and drives the first valve plate to move, and then the large valve hole can be opened. Equipment is arranged at the position of a small valve hole during flow limiting, and is arranged at the position of a large valve hole during coke cutting, so that the problem that the fluid shear force cannot be dynamically adjusted to inhibit coking due to the adoption of a fixed flow limiting hole diameter in a traditional plate type flow limiting valve is effectively solved.

The application belongs to the technical field of oil detection, and particularly relates to a spinning oil online detection system based on edge computing, which comprises the following steps: obtaining spinning oil frequency shift and energy loss data, fitting to obtain oil film adsorption capacity, viscoelasticity and shear loss modulus, combining microfluidic pressure signal to calculate fluid shear force, constructing a friction energy loss database and normalizing to form a feature vector, fusing with dielectric constant and ion mobility data, extracting interface conductance and molecular motion parameters, establishing a lubrication and charge conduction coupling model, converting the model into a spatial charge density matrix, matching the matrix with time domain data of the yarn tension transient state, calculating a correlation coefficient and generating an antistatic and smoothness coupling evaluation index, fitting a prediction model through multi-temperature and humidity, and outputting a quantitative conclusion to guide the formula and process. Through multi-sensing fusion and edge computing, the application realizes full-dimensional detection and optimization of oil performance, and improves detection precision and production efficiency.

This invention belongs to the field of energy exploration, specifically relating to a novel vibratory cementing tool designed to solve problems such as poor frequency controllability and uncontrollable vibration time in existing conventional electric vibratory tools. The invention includes an upper connector assembly, one end of which is detachably and fixedly connected to the vibratory cementing tool body, and the other end of which is detachably and fixedly connected to a triggering and starting assembly; a control assembly, disposed on one side of the other end of the triggering and starting assembly and fixed to a power assembly; a power assembly, disposed below and fixed to the control assembly; a vibration assembly, disposed below and fixed to the power assembly; and a rotary guide assembly, disposed below the vibration assembly and detachably and fixedly connected to the inner surface of the vibratory cementing tool body. This invention reduces drilling fluid shear force, removes cement cake from the cementing surface, improves cement slurry displacement efficiency, and the generated vibration waves propagate longitudinally, allowing for more thorough contact between the cement slurry and the wellbore and casing.

The invention discloses a microfluidic device and method for observing generation and migration of microbubbles. According to the chip related to the microfluidic device, generation and migration of microbubbles can be carried out in a plane, gas-phase fluid is sheared by liquid-phase fluid in a cross-shaped channel to generate continuous microbubbles with controllable and uniform sizes, and the fluid is introduced into a porous medium model after passing through a slow flow design in the chip; therefore, the migration and plugging effects of the microbubbles in different media can be observed. The integrated design can greatly reduce the interference of the external environment on the microbubbles, and prevents the microbubbles from coalescence and floating in the storage process. Compared with a common glass etching chip, the polydimethylsiloxane (PDMS) chip is lower in cost and shorter in construction period, and can be customized and replaced according to different porous media.

This invention discloses a method and apparatus for micro-lubrication of magnetic shear-thickening nanofluid, belonging to the field of micro-lubrication and cooling in machining. The method is based on a micro-lubrication system, which includes an air pump, a pressure valve, a Rank-Hillsch vortex tube, a reservoir, a reciprocating pump, a flow controller, and a micro-lubrication nozzle. The reciprocating pump pressurizes and delivers the magnetic shear-thickening fluid from the reservoir to the micro-lubrication nozzle. Compressed air, after being pressurized by the pressure valve, enters the vortex tube for diversion. The hot airflow at the hot end of the vortex tube preheats the fluid in the reservoir, shear-thinning it to improve its flowability. The low-temperature cold air at the cold end mixes with the fluid within the nozzle. Under the influence of the built-in magnetic field in the nozzle, a low-temperature nano-atomized particle cluster spray is formed and directed towards the machining area. Upon contact with the workpiece, the spray transforms into the magnetic shear-thickening fluid, forming a lubricating film at the tool-workpiece interface, achieving efficient cooling and lubrication and improving machining quality.

This invention discloses a method and system for emission control of high-salinity wastewater through cascaded evaporation and concentration, relating to the field of intelligent control technology. The method includes: heating the high-salinity wastewater with an external heat source, employing seed deposition and frequency conversion regulation based on a fluid shearing device to perform evaporation and concentration treatment in the precipitated phase state, obtaining a concentrated liquid with low scaling tendency; sequentially flowing the concentrated liquid into a temperature-controlled crystallizer connected in series in a gradient separation unit for temperature control stabilization and gradient separation treatment to obtain the separation result; and multi-threaded transport and post-processing of the various crystalline components and mother liquor based on the separation result. This invention solves the technical problem in existing technologies where the differences in salt composition during high-salinity wastewater treatment are difficult to effectively identify and target, leading to insufficient adaptability and low overall treatment efficiency. It achieves the technical effect of adaptive optimization and adjustment of the treatment path based on changes in salt composition, thereby improving overall treatment efficiency and operational stability.

The invention discloses a hyperbolic spiral groove induction type impinging stream reaction kettle for preparing ultrafine powder, and relates to a reaction kettle device for preparing the ultrafine powder. According to the device, the arc-shaped baffle is arranged at the lower part of the impinging zone of the reaction kettle, and the spiral grooves are formed in the hyperbolic wall surface of the kettle bottom, so that the fluid shearing effect is enhanced, and efficient preparation of superfine powder is realized. Firstly, after two reactant solutions collide in the kettle body, radial jet flow formed by the two reactant solutions impacts an arc-shaped baffle to form high-speed impact jet flow; and the fluid flows into a groove in the wall surface of the bottom of the hyperboloid, and the groove strengthens fluid mixing and regulation through a special wall surface structure. The hyperbolic bottom wall surface grooves guide fluid to flow orderly, so that the mixing time is prolonged, the mixing and reaction effects are enhanced, and the reaction efficiency is improved. The reactant solution is impacted again on the baffle after being impacted in the impinging area, so that the turbulence degree of the fluid is effectively enhanced, the fluid mixing efficiency is improved, a more ideal environment is provided for reaction, and the reactor can be applied to the fields of fine chemical engineering, biological pharmacy and the like.

The invention relates to the technical field of sewage treatment, and particularly discloses sewage treatment equipment for cleaning waste incineration slag, which comprises a tank body, and a discharging hopper is arranged in the tank body and is used for temporarily storing medicine powder; at least one material mixing barrel is arranged in the tank body, the material mixing barrel is communicated with the discharging hopper and can do revolution motion and autorotation in the tank body, and a through groove is formed in the side wall of the material mixing barrel; a sealing assembly is arranged at the top of the mixing barrel and used for controlling communication or separation between the discharging hopper and the interior of the mixing barrel; according to the sewage treatment equipment for cleaning the waste incineration slag, medicine powder is directly released in the middle depth of sewage from the moving material mixing barrel instead of being thrown from the liquid level, so that the medicine powder is immediately located in an environment surrounded by water flow and is quickly dispersed by utilizing fluid shear force, and the treatment effect is improved. The problems that light medicine powder floats on the liquid level, is caked and is difficult to dissolve are fundamentally solved, each material mixing barrel serves as a moving point source, and the medicine adding position is continuously changed in the revolution and rotation process.

The invention relates to a method for measuring cohesive force and micromechanical parameters of a wax crystal flocculating constituent based on a microfluidic-CFD-DEM (Cyclic Frequency Division-Digital Elevation Model), which combines microfluidic experimental observation with CFD-DEM numerical simulation to quantitatively characterize the formation-crushing dynamic behavior of the wax crystal flocculating constituent. Microfluidic experiment observation is carried out through the wax crystal flocculating constituent dynamic behavior observation platform, and visual observation of the wax crystal flocculating constituent forming process and the breaking process under the fluid shearing effect is achieved. A mathematical model consistent with microfluidic experiment conditions is constructed in the CFD-DEM, and a dynamic crushing process of a flocculating constituent in a shear flow field is calculated and simulated through bidirectional fluid-solid coupling; and comparing the simulated crushing result with microfluidic experiment observation data, and when the relative error between the simulated crushing result and the microfluidic experiment observation data is smaller than a certain value, accurately measuring the cohesive force and the micromechanical parameters of the wax crystal flocculating constituent. According to the device and the method, accurate measurement of the cohesion and micromechanical parameters of the wax crystal flocculating constituent through inversion of experimental phenomena is realized.

This invention belongs to the field of water environment monitoring technology, specifically providing a remote operation and maintenance system for water environment quality monitoring equipment. The system includes an alternating measurement and decoupling module, a mutually exclusive collaborative decision-making module, a hydraulic transient suppression and calibration reconstruction module, and a physical mechanism mapping correction module. The alternating measurement and decoupling module acquires signals through three alternating measurements and decouples the equivalent fouling film thickness and probe sensitivity attenuation coefficient based on a joint inversion model. The mutually exclusive collaborative decision-making module generates mutually exclusive control commands accordingly, outputting a timing combination command of cleaning followed by calibration during mixed degradation. The hydraulic transient suppression and calibration reconstruction module calculates the delay time by fitting a hydraulic time constant to the pipeline pressure attenuation data and obtains the reconstructed calibration signal. The physical mechanism mapping correction module updates the fluid shear force mapping coefficient in the joint inversion model by combining the previous and subsequent fouling film thicknesses with the hydraulic time constant. This invention achieves physical separation of the root causes of anomalies and precise mutually exclusive scheduling.

A fluid shear inducer includes a housing defining a primary flow path, a secondary flow path branching from the primary flow path, a return junction connecting the secondary flow path back to the primary flow path, and a fluid accelerator associated with the secondary flow path. A method for shearing fluid includes flowing a fluid into a housing defining a primary flow path and a secondary flow path, branching some of the flowing fluid from the primary flow path into the secondary flow path, accelerating the fluid in the secondary flow path, and impinging the accelerated fluid from the secondary flow path into the fluid in the primary flow path. A fluid system includes a fluid reservoir, a pump operably connected to the reservoir, and a fluid shear inducer fluidly connected to the pump.

The invention relates to the technical field of tissue engineering and regeneration, in particular to a stem cell membrane-stent dynamic co-culture device and a gradient regulation culture process. The stem cell membrane-stent dynamic co-culture device comprises a) a multi-modal mechanical loading module (1), a compression strain unit (2) and a multi-modal mechanical loading module (3), the frequency is adjustable from 0.1 Hz to 2 Hz, the strain amplitude is 5%-15% (the precision is + / -0.5%), and the periodic compression stress of bone tissue can be simulated; (2) a fluid shear force unit: generating 0.1-5Pa laminar shear force (Re < 2000) through a conical flow channel (with a taper angle of 15 degrees) and a peristaltic pump, and simulating a shear microenvironment of a blood vessel or periodontal ligament area; the method has the beneficial effects that multi-modal mechanical synergy is achieved, and the cell differentiation efficiency is remarkably improved through coupling loading of compression and shearing force. Experiments show that the ALP activity reaches 38.2 + / -3.1 U / mg (only 12.5 + / -2.3 U / mg in traditional single-mode stimulation), and the proportion of a CD31 + vascularized region is increased to 41.7 + / -3.8% (plt; 0.01).

The invention relates to the technical field of lithium carbonate precipitation equipment, in particular to a lithium precipitation reaction device and an application method. The device comprises a lithium precipitation reaction kettle, a stirring part, a flow blocking assembly and a fluid shearing part, a lithium-rich liquid feeding pipe, an alkali liquid feeding pipe, a discharging pipe and a material returning pipe which are communicated with the interior of the lithium precipitation reaction kettle are arranged on the lithium precipitation reaction kettle; the stirring part is arranged on the lithium precipitation reaction kettle, and the stirring end of the stirring part is arranged in the lithium precipitation reaction kettle; the flow blocking assembly is arranged in the lithium precipitation reaction kettle; and the fluid shearing component is arranged at the bottom or outside the lithium precipitation reaction kettle. The application method of the device not only can promote collision aggregation and sedimentation among lithium carbonate particles in the lithium sedimentation process, but also can effectively solve the problem of high impurity content of lithium carbonate, so that the product quality is improved, and the lithium sedimentation efficiency is improved.

The utility model relates to the technical field of microfluidic structures, and provides a microfluidic chip, which comprises a filter membrane layer, a first plate body and a second plate body, the first plate body is provided with a first end face and a first side face, the first end face is recessed to form a first groove structure, the first side face is provided with a first sample inlet and a first sample outlet, and the second plate body is provided with a second groove structure. The first sample inlet and the first sample outlet are both communicated with the first groove structure; the second plate body is provided with a second end face and a second side face, the second end face is sunken to form a second groove structure, a second sample inlet and a second sample outlet are formed in the second side face, and the second sample inlet and the second sample outlet are both communicated with the second groove structure. According to the micro-fluidic chip provided by the utility model, the characteristics of the filtering membrane layer are fully utilized, and the stimulation and interference on the fluid shear force of a sample in the second plate body when fluid is injected into the first plate body can be greatly reduced on the premise of ensuring the material exchange between the first plate body and the second plate body.

The invention relates to the field of pulverized coal combustion, and discloses a composite injection process for improving the pulverized coal combustion rate, which comprises the following steps: preparing a superheated steam flow carrying oxygen-containing micro-nano bubbles and carbon dioxide as a composite activation injection medium; the medium is sprayed into a combustion chamber in a high-speed rotating vortex form through a coaxial vortex spray gun, meanwhile, pulverized coal is sprayed into the vortex center from the center, a strong shear layer is formed between the pulverized coal and the vortex center, and according to the method, an ordered reaction area which is layered in the radial direction is constructed in the combustion chamber, the outer layer is mainly based on surface gasification of the pulverized coal, and the inner layer conducts gas combustion. And oxygen required by combustion of the inner layer comes from oxygen-containing micro-nano bubbles which are broken and released due to bearing of fluid shearing force in the shearing layer, so that accurate controlled supply of an oxidizing agent is realized. Through space decoupling and ordered regulation and control in the combustion process, the combustion rate and the burn-off rate are remarkably increased, and generation of nitric oxide is effectively inhibited.

The invention provides a preparation method of aramid fiber with high thermal stability, and relates to the technical field of aramid fiber preparation, and the preparation method comprises the following three steps: synthesis of a narrow distribution aramid precursor solution, acid coagulating bath spinning and three-section boosting mode drafting forming, and catalytic crosslinking and stabilizing treatment. By controlling molecular weight distribution and removing low-molecular-weight impurities, structural defects caused by component volatilization during heat treatment are reduced from the source, a uniform molecular basis is provided for fibers, molecular chains are forced to be highly oriented in the axial direction by utilizing fluid shear force in a three-section pressure rising mode drafting mode, the structural compactness of the fibers is enhanced, and meanwhile, the mechanical property of the fibers is improved. The molecular chain slippage tendency at a high temperature is reduced, finally, through catalytic cross-linking stabilization treatment, the activation energy of the imidization reaction is reduced by utilizing a supported catalyst, and the residual stress is eliminated in cooperation with a gradient heating stabilization process, so that the fiber shows excellent thermal stability in a high-temperature environment.

The invention discloses a welding process for parts of a water storage tank of a liquid cooling system, suspension liquid is needed during welding, the suspension liquid is prepared from deionized water, citric acid monohydrate, nitric acid, hydrofluoric acid, precipitated barium sulfate micro powder, magnesium fluoride micro powder and composite corrosion inhibition dispersion premixed liquid, and the welding process comprises the steps that the parts of the water storage tank are tailor-welded and subjected to electrolytic polishing; argon is filled for closed welding; a suspension and a stainless steel grinding needle are injected into the cavity, and alternating magnetic force polishing is conducted; and discharging waste liquid, and performing high-pressure washing and neutralization. According to the method, a fluid physical network with yield stress is constructed, and a high-viscosity state is maintained in a static non-working area to shield and protect a base material; in a closed weld zone, a magnetic field drives a grinding needle to generate mechanical shearing force to shear and dilute fluid, targeted release of acid liquor softens oxide skin, physical stripping is completed by combining inorganic micro powder friction, and fixed-point removal of blind zone welding spots and synchronous protection of base metal in a non-working zone are achieved.

This application discloses a fracture-resistant tensile clamp for a push-pull force gauge, comprising a base, a force gauge, and a clamp. The force gauge is fixed on the base, and the clamp is used to hold the product under test. The base has a slide rail cavity, in which a slider is slidably fitted, and the slider is rigidly connected to the clamp. The slide rail cavity is filled with a non-Newtonian fluid, and the slider has a fluid shear structure. The fluid shear structure causes the non-Newtonian fluid in the slide rail cavity to generate velocity-related flow resistance when the slider moves. The slide rail cavity includes a main working cavity and a secondary compensation cavity that are interconnected, and a fluid channel is provided between the two cavities. This fracture-resistant tensile clamp for a push-pull force gauge, through the buffering effect of the non-Newtonian fluid and the shear structure, combined with the main and secondary cavity structure of the slide rail cavity, can effectively protect the clamp and equipment under various actual testing conditions, especially when facing sudden tensile impacts. It also has good compatibility with the tested products, and has significant practical value and promotional significance.

The invention relates to the technical field of food processing and industrial automation control, and discloses a bone soup sterilization effect real-time detection and intelligent regulation and control system based on machine vision, which comprises a bone soup industrial sterilization main loop, a bypass online intelligent detection feedback loop and a central control unit, the bypass loop is provided with a heat flow coupling conditioning unit, a micro-fluidic sorting chip and a polarized optical detection unit; wherein the heat flow coupling conditioning unit maintains a constant Reynolds number by adjusting fluid temperature; the microfluidic sorting chip physically separates fat globules from microorganisms by using the difference between inertial lift force and Dean drag force; the polarization optical detection unit quantifies the thermal lethal state of the microorganisms by calculating the polarization retention rate according to the fluid shear induced deformation principle; and the central control unit adjusts a steam adjusting valve and a feeding pump of the main loop by adopting a split-range PID (Proportion Integration Differentiation) strategy based on a detection result. According to the invention, fat interference is effectively eliminated, and real-time nondestructive detection of the sterilization effect and process closed-loop control are realized.

This invention relates to the field of food and beverage processing machinery, specifically a degassing device for fruit juice production. It comprises a vacuum degassing tank, a variable frequency drive motor, a central feed pipe, a rotating umbrella-shaped film-forming disc, a streamlined impact turbulence ring, and an adaptive control module. The device utilizes the central feed pipe in conjunction with the rotating umbrella-shaped disc to spread the fruit juice into a liquid film through centrifugal force. The adaptive module calculates the dynamic shear resistance of the fruit juice based on the effective working current, thereby adjusting the motor speed in real time. Its core principle is to generate fluid shearing and reversal effects by impacting the streamlined turbulence ring with the high-speed liquid film, effectively tearing apart the fruit fiber network that encapsulates the air bubbles, allowing the microbubbles to escape rapidly in a vacuum environment. This invention avoids complex flow channel structures, solving the problems of easy clogging and material residue, reducing cleaning frequency, and significantly improving degassing efficiency.

The present application provides a portable device and a method for relieving the impact force of a pump station flap, which comprises: an inertia disc for containing fluid sheared with a brake vane, the inertia disc being interference fitted with a fixed shaft of the pump station flap; a surface of the inertia disc facing the pump station flap is concave to form a containing cavity I for containing fluid; a fluid filler receiving box for providing fluid, which is provided with a containing cavity II in communication with the containing cavity I, the volume of the containing cavity II being adjustable; a transmission turntable for driving the brake vane to do centrifugal motion, the transmission turntable being arranged in the containing cavity I of the inertia disc; one end of the brake vane is hinged to a surface of the transmission turntable, and the other end is a free end; a resistance reset unit for prolonging the action time of the brake vane with the fluid and resetting the brake vane in the radial direction; and a sealing plate for sealing the surface of the inertia disc facing the pump station flap. The present application can slow down the impact speed of the pump station flap and reduce the impact force of the pump station flap on the door seat when the pump station flap is closed.

The invention discloses a cavitation risk assessment and correction method and system for a repaired contour of a water pump impeller, and belongs to computer aided design and manufacturing, and the method comprises the steps: generating a difference matrix through point cloud and standard data registration; calling operation data to calculate grid fluid shear and impact values; establishing a load and thickness mapping table according to the three-layer material parameters; constructing a simultaneous inequality group covering the fluid load; screening the thickness ratio solution with the lowest material consumption to generate a repairing instruction; and constructing and outputting a hierarchical repair visualization model. According to the method, the flow field can be actively optimized and cavitation can be inhibited in the repairing stage, and an optimized repairing scheme considering economical efficiency, reliability and hydraulic performance is generated.