65 results about "Acoustic streaming" patented technology

The invention relates to the technical field of wind turbine generator maintenance, and discloses a wind turbine generator blade unmanned aerial vehicle deicing assembly and method.The wind turbine generator blade unmanned aerial vehicle deicing assembly comprises an unmanned aerial vehicle, and a laser radar and an installation shell integrating an ultrasonic transducer, a pulse nozzle and a hydraulic pump are installed at the bottom of the unmanned aerial vehicle. The deicing control system obtains focus space coordinates and interface resonance frequency of the blade surface by using a space state sensing module; the stress field focusing module calculates the phase delay amount of the ultrasonic transducer, compensates the pose deviation of the unmanned aerial vehicle by adjusting the emission time sequence, and drives the ultrasonic transducer to generate resonance stress on an ice layer-skin interface; and the sound stream synchronous control module determines a jet flow triggering moment according to synchronous phase locking solution, drives a pulse nozzle at an instantaneous negative pressure phase point of a sound wave period to inject a small amount of deicing fluid into an interface crack, and generates shear stress to induce the interface crack to expand and peel off an ice layer. Accurate throwing of deicing energy is achieved, and the icebreaking efficiency is improved on the premise that the safety of the blade structure is guaranteed.

The invention discloses a digital acoustic fluidic chip, a preparation method and a multi-dimensional sample processing method, the digital acoustic fluidic chip comprises an upper polar plate and a lower polar plate, and the upper polar plate comprises a glass layer, a coating layer and an upper hydrophobic layer which are arranged in sequence; the lower polar plate comprises a lower hydrophobic layer, a dielectric layer, an electrode layer and a substrate which are arranged in sequence; the electrode layer comprises an EWOD pin electrode, a driving electrode, a sound wave pin electrode and an interdigital transducer; the interdigital transducer comprises a sound field and electric field multiplexing module, a sound standing wave field and thermal field module, a focusing sound field and thermal field module and a sound vortex enrichment module; each driving electrode is connected with one EWOD pin electrode, the two sides of the sound field and electric field multiplexing module, the two sides of the sound standing wave field and thermal field module, the two sides of the focusing sound field and thermal field module and the two sides of the sound vortex enrichment module are all connected with the two sound wave pin electrodes, and one side of the sound field and electric field multiplexing module is further connected with one EWOD pin electrode. The method has the advantages of multi-dimensional sample treatment and high-flexibility treatment.

The invention belongs to the technical field of metal-based composite material additive manufacturing, and particularly relates to ultrasonic-assisted green laser equipment for copper-based diamond cooling fin machining, which comprises a rack, a printing cabin, a green laser machining system, an ultrasonic-assisted system, a powder spreading system, a gas control system, an intelligent control system and an online monitoring system. By integrating a green laser processing system and an ultrasonic auxiliary system, an ultrasonic-green laser-powder multi-energy field coupling processing system is constructed, the wavelength of green laser is 532 nm, the absorption rate of copper is increased, and compared with traditional infrared laser, low-power and high-efficiency melting of copper can be achieved, the diamond graphitization risk is reduced from the angle of a heat source, and the production cost is reduced. Ultrasonic vibration is transmitted to a molten pool through a substrate coupling type structure, by means of the cavitation effect and the acoustic streaming effect, the interface wettability of copper and diamond is effectively improved, the interface bonding force is enhanced, the interface thermal resistance is reduced, meanwhile, grains are refined, pores are eliminated, residual stress is reduced, and the comprehensive performance of the cooling fin is remarkably improved.

The present application relates to the technical field of nanomanipulation, and more particularly to a method and device for manipulating nanoparticles based on the principle of acoustic streaming suppression, the method comprising the following steps: S1. setting a microfluidic chip with a cavity; S2. establishing a target standing wave acoustic field in the cross section of the cavity, wherein the sound pressure node plane of the target standing wave acoustic field is parallel to the adjacent side wall of the cavity; S3. introducing a fluid containing nanoparticles into the cavity, and the nanoparticles can be driven to the sound pressure node region under the action of acoustic radiation force and form a stable aggregation cluster; the device comprises a microfluidic chip, the microfluidic chip is provided with a cavity, and the surface of the microfluidic chip is provided with an acoustic wave driving structure, and the sound pressure node plane of the standing wave acoustic field generated by the acoustic wave driving structure is parallel to the adjacent side wall of the cavity. The present application can realize the directional or point manipulation of nanoparticles under the action of actively suppressing acoustic streaming interference.

This invention relates to the field of ultra-precision polishing technology, specifically to an ultrasonic cavitation microjet polishing module for polishing microstructures. The module includes an acoustic focusing nozzle, a center-penetrating piezoelectric transducer, an adaptive acoustic impedance frequency tracking system, and a liquid supply and bubble nucleation system. The acoustic focusing nozzle employs a variable cross-section acoustic amplitude rod structure, ensuring that the standing wave antinodes and nozzle outlet are confocal, thus increasing energy density. The piezoelectric transducer has a ring structure with fluid flowing through its center, achieving efficient energy conversion. The frequency tracking system adjusts the excitation frequency in real time to maintain resonance. The liquid supply system introduces cavitation nuclei through a venturi tube, reducing the cavitation threshold. This invention, through an acoustic-fluid coupling mechanism, utilizes the dual effects of macroscopic kinetic energy removal and microscopic cavitation removal to solve the problems of traditional polishing techniques, such as difficulty in processing high aspect ratio microstructures, incomplete bottom polishing, and low efficiency. It achieves high-precision polishing of microstructure surfaces, and is particularly suitable for ultra-precision machining of deep and narrow grooves.

A method for spatializing a sound stream including a sound object in a motor vehicle comprises the steps of: extracting (203) the voice using an artificial intelligence model to separate the sound stream into two tracks, a first track including the sound object and a second track including the other sound elements of the sound stream; spatializing (205) the first track so that the sound object is perceived by a user of the motor vehicle as originating from a predefined location in the vehicle; and simultaneously broadcasting (209) the first and second tracks in the vehicle. A spatialization device and a motor vehicle including the device are also described. Figure to be published with the abbreviation: Fig 2

The invention relates to the technical field of micropore machining, in particular to an ultrasonic micropore machining method and device, and the ultrasonic micropore machining method comprises the steps that a first ultrasonic vibration table is arranged between a workbench and a workpiece; the ultrasonic cutter punches the workpiece; the ultrasonic vibration table generates vibration and transmits the vibration to the grinding material flowing above the workpiece; determining the sound stream drag force Fdrag of the first ultrasonic vibration table on the abrasive particles in the abrasive material; determining the acoustic radiation force Frad of the first ultrasonic vibration table on the abrasive particles in the abrasive material; and the impulse I of the abrasive particles in the horizontal direction is determined based on the acoustic streaming drag force Fdrag and the acoustic radiation force Frad, and the impulse I is made to be larger than 0. And abrasive particles are driven to move through ultrasonic waves, so that the technical effect of improving the machining quality is achieved.

The invention relates to a heating device and cooking equipment, and the heating device comprises a heating assembly which comprises a heat transfer part and a first heating part, the heat transfer part is provided with a cavity, the cavity is filled with heat conduction liquid, and the first heating part is arranged in the cavity; the ultrasonic assembly is arranged on the outer wall of the heat transfer piece and comprises an ultrasonic generator and a piezoelectric transducer. The first heating piece is immersed in the heat conduction liquid filled in the cavity, heat generated by the first heating piece is firstly transferred to the heat conduction liquid, and the temperature of the outer surface of the whole heat transfer piece is uniform by utilizing the heat conductivity and the fluidity of the liquid; the ultrasonic assembly generates high-frequency vibration, the vibration can generate an acoustic streaming effect, micro fluid movement is triggered, heat diffusion of the heating assembly is promoted, and temperature distribution in the inner container is more uniform. The ultrasonic waves can also generate a cavitation effect, microbubbles are generated in liquid or grease of the food to explode, a static thermal boundary layer is destroyed, heat is more uniformly transmitted to each part of the surface of the food, and the cooking effect is improved.

The embodiment of the invention provides a preparation method of graphene composite powder. The preparation method comprises the following steps: adding a mixed material of powder and a solid carbon source into a reaction cavity; vacuumizing the interior of the reaction cavity, and then filling inert gas to normal pressure; treating the mixed material in the reaction cavity by adopting an acoustic resonance process, and setting sound wave frequency, acceleration, treatment time and material temperature; and collecting products, and cleaning and separating powder. A mixed material in a reaction cavity is treated by adopting an acoustic resonance process, direct contact friction between a grinding material and powder is avoided through acoustic resonance mixing, the risk that impurities are introduced due to mechanical abrasion is reduced, and the problems that the cost is high and the compounding efficiency is low when graphene powder is prepared through a conventional vapor deposition method are solved; the acoustic streaming effect generated by resonance can permeate into the powder aggregate, the aggregate structure is effectively disassembled and is not influenced by different material densities, powder particles with different particle sizes and different components are promoted to be uniformly dispersed and interacted, and the shape of the original powder is not changed.

The invention relates to a colorimetric method-based rapid detection device and method for organic matters in industrial byproduct gypsum. The colorimetric method-based rapid detection device comprises a sample introduction and pre-dispersion module, an extraction reaction module, a pneumatic cyclone separation and refined filtration module, a color development mixing module and a colorimetric detection module, the sample injection and pre-dispersion module realizes continuous quantitative conveying and mixing of samples, the extraction reaction module performs micro-cutting type enhanced extraction on particles by utilizing an acoustic streaming effect generated by high-frequency standing waves, and the pneumatic cyclone separation and fine filtration module realizes rapid and efficient solid-liquid separation through tangential gas injection enhanced cyclone and in cooperation with an air flotation effect. The developing and mixing module is used for automatically and quantitatively mixing reagents. According to the invention, automation and continuity of the whole process from coarse particle sample feeding to organic matter content result output are realized, the detection time is greatly reduced, and the method is especially suitable for rapid quality monitoring of production and application sites of industrial by-product gypsum such as ardealite and the like.

Provided is a decontamination device capable of confirming whether a mist circulation dispersion unit is working properly before and after decontamination operation or during decontamination and capable of ensuring the operation of the decontamination device. The decontamination device is provided with a mist supply unit, a mist circulation dispersion unit, and an ultrasonic wave detection unit. The mist supply unit changes a decontamination liquid used for decontaminating the inside of a work chamber into a decontamination mist and supplies the decontamination mist to the inside of the work chamber. The mist circulation dispersion unit makes a vibration plate provided with a plurality of ultrasonic wave transmitters vibrate ultrasonically to generate an ultrasonic wave-based acoustic flow from the surface of the plate to the vertical direction, and makes a pressing action based on acoustic radiation pressure of the acoustic flow act on the decontamination mist to make the decontamination mist circulate and disperse in the work chamber. The ultrasonic wave detection unit is provided with an ultrasonic wave receiver for detecting the operation of the ultrasonic wave transmitters, and detects the operation of the plurality of ultrasonic wave transmitters as a whole and / or each ultrasonic wave transmitter provided in the vibration plate.

The invention discloses an automobile auxiliary frame welding method for reducing welding spatter through ultrasonic assistance. The automobile auxiliary frame welding method aims at solving the problems that spatter is serious and quality is not stable in a traditional welding process. The method comprises the steps that in the process of welding the automobile auxiliary frame, ultrasonic vibration is synchronously applied to a welding area; the core is that the ultrasonic vibration is started at the same time as or before the start of the welding current and is stopped after the stop of the welding current, and the generation of spatter is physically suppressed by the acoustic streaming effect and / or cavitation effect generated in the welding pool. Compared with the prior art, through real-time synchronous coupling of the ultrasonic and welding processes, welding spatter can be reduced by 70% or above, meanwhile, welding seam forming is improved, the grain structure is refined, an online monitoring and feedback control system can be integrated, and the welding quality, the production efficiency and the automation level are remarkably improved.

The utility model relates to the technical field of welding systems, in particular to a synchronous plug-in type ultrasonic-assisted laser welding system which is arranged on a guide rail group and comprises a laser welding part and a welding head connecting part, the laser welding part is connected with the guide rail group through the welding head connecting part, and the welding head connecting part is connected with the laser welding part. The laser welding part is used for emitting laser and welding a welding part; through the acoustic streaming effect and the cavitation effect of ultrasonic waves generated by the ultrasonic generation part, the fluidity of a molten pool is improved, the grain structure is refined, the quality and stability of a welding joint are improved, the joint strength and the welding seam quality of metal material laser welding are improved, and a laser welding head and an ultrasonic variable-amplitude needle head are rotated to proper angles to adapt to welding seams of different shapes; ultrasonic welding and laser welding are effectively combined, a welding part is welded, the quality and stability of a welding joint are guaranteed, and the adaptability of the welding system is improved.

This invention discloses a method and system for detecting the strongest Rayleigh acoustic current in immobilized microdroplets. Specifically, it involves: calculating the acoustic current suppression coefficient through experimental quantitative testing to establish a quantitative mapping relationship between acoustic current intensity and droplet contact angle; utilizing an electrowetting structure composed of interdigitated electrodes, a dielectric layer, and a hydrophobic layer to actively regulate the droplet contact angle through an applied voltage; and dynamically adjusting the applied voltage in real time by monitoring the droplet vibration amplitude, particle velocity, and contact angle through a collaborative control program to maintain the acoustic current intensity at its strongest. This invention also provides a detection system for implementing the above method, including an indium tin oxide transparent interdigitated electrode substrate, a lead zirconate titanate piezoelectric transducer, a laser Doppler vibrometer, a microscope, and a collaborative control module. This invention can maximize and dynamically maintain the Rayleigh acoustic current intensity in immobilized microdroplets, significantly accelerating the solid-liquid interface mass transfer process, and is applicable to biochemical analysis fields such as rapid immunoassay and biological particle mixing.

The application discloses a composite digital acoustic flow control chip, a preparation method and a multi-dimensional processing method. The chip comprises detachably connected upper and lower plates and a gap support assembly arranged between the upper and lower plates. The upper plate comprises a piezoelectric substrate, an acoustic surface wave interdigital electrode array arranged on the piezoelectric substrate, a first dielectric layer covering the interdigital electrode array, a conductive layer arranged on the first dielectric layer, and a first hydrophobic layer arranged on the conductive layer. By constructing the multi-dimensional acoustic wave control unit of the upper plate and the electrode array of the lower plate based on the dielectric wetting effect, the programmable and controllable movement of the droplet sample and the action of the acoustic surface wave in the droplet are realized, the digital control of the acoustic flow control technology is realized, and the capacity of the chip for sample enrichment, control, mixing and fixed-point heating is greatly improved through the design of multiple IDTs.

The invention relates to the technical field of automatic packaging of medical instruments, in particular to a packaging device for medical textiles. The acoustic streaming composite pressing plate comprises a compression driver, an integrated piezoelectric array and a porous bottom plate; the system generates a strong sound pressure field through high-frequency vibration of piezoelectric ceramics, and composite exhaust is conducted in cooperation with pulsation negative pressure. The core of the method is that an acoustic streaming effect and acoustic radiation pressure are utilized to destroy an air boundary layer on the fiber surface and induce microscopic turbulence, the high-pressure air bag effect under high-speed compression is effectively overcome, the exhaust resistance is reduced, meanwhile, fiber tearing caused by mechanical compaction is avoided, and the structural integrity of textiles is ensured.

This invention relates to a microfluidic chip driven by acoustically excited droplet-shaped microbubbles and its fabrication process. A droplet-shaped microbubble array is obtained through microfluidic chip structure design. Under acoustic excitation, the microbubbles oscillate, generating asymmetric acoustic-flow vortices, which in turn directionally drive the microfluidic fluid within the microchannels. The flow rate can be linearly controlled by adjusting the driving voltage, offering advantages such as non-contact, pollution-free, and highly efficient directional driving. The fabrication process is based on MEMS technology, employing nitrogen plasma bonding and soft lithography, resulting in low cost and suitability for mass production. This invention solves the problem of the lack of directionality in traditional symmetrical acoustic-flow vortices and can be widely applied in fields such as biomedicine, drug delivery, and chemical analysis.

The application discloses a method and device for growing silicon carbide crystal by ultrasonic-assisted liquid phase method. The method comprises the following steps: forming a melt containing silicon and a complexing agent, contacting a silicon carbide seed crystal with the melt to grow a crystal, applying ultrasonic waves to the growth interface and / or the interior of the melt by an ultrasonic wave generating device during the growth process, and separating the crystal after the growth is completed to obtain a silicon carbide crystal. The device comprises a furnace body, a seed crystal rod for fixing the seed crystal, an ultrasonic wave generating device and a control system. The cavitation effect generated by the ultrasonic waves in the melt is used to break carbon atom clusters to reduce defects, and the acoustic streaming effect is used to strengthen carbon solute transport to improve the growth rate and homogenize the melt temperature and the doping distribution, so that the growth rate and the crystallization quality of the silicon carbide crystal are significantly improved, the doping uniformity is improved, and a new technical approach is provided for the preparation of high-quality silicon carbide single crystal.

The invention discloses a nanopore transistor biomolecular sensor based on surface acoustic wave constraint and a preparation method thereof. The sensor comprises a substrate, a silicon nitride thin film layer, a detection layer, a first passivation layer covering the detection layer, a surface acoustic wave excitation structure arranged on the first passivation layer, a second passivation layer covering the surface acoustic wave excitation structure, a nanopore penetrating through the sensor, and a hydrophilic gate dielectric oxide layer covering the inner circumferential surface of the nanopore, which are stacked in sequence. The surface wave excitation structure is used for exciting a surface acoustic wave which is focused in a nanopore and generates a blocking effect on biomolecules, and comprises a piezoelectric film and an interdigital electrode layer arranged on the piezoelectric film. According to the invention, through the acoustic streaming effect of the acoustic surface wave, the charge induction of the transistor and the confinement effect of the nanopore, the broad-spectrum detection of various biomolecules can be realized without modifying a specific biological capture layer.

This invention discloses a method and system for detecting the dielectric properties of cells in a coplanar waveguide based on Rayleigh acoustic flow manipulation and optical tracking. It employs a closed-loop detection scheme of identification-manipulation-detection-correction, specifically: a Rayleigh acoustic flow field is generated in a fixed microdroplet; the three-dimensional motion trajectory of the cell in the fixed microdroplet is obtained through optical measurement to identify the real-time height of the cell in the Rayleigh acoustic flow field; the acoustic flow excitation parameters are optimized based on the acoustic flow suppression coefficient, and the cell is stably manipulated to the electrode gap region of the coplanar waveguide sensor using acoustic flow; broadband scattering parameters are measured using the coplanar waveguide sensor, simultaneously obtaining the precise three-dimensional position of the cell within the electrode gap region; the precise three-dimensional position and broadband scattering parameters are input into a pre-constructed mapping model to obtain the cell dielectric parameters after position deviation correction. This invention has advantages such as good biocompatibility, high position manipulation accuracy, high detection accuracy, and the ability to be arrayed for high-throughput operation.

The application provides a sound flow coupling calculation method and device based on a Galbrun equation. The method provided by the application comprises the following steps: obtaining a Galbrun equation based on Euler equations of an ideal fluid under no external force, in combination with Euler disturbance, Lagrange disturbance and mixed disturbance relationship; the Galbrun equation represents the coupling effect of a flow field and a sound field; obtaining flow field data of a non-uniform flow field based on Navier-Stokes equations, in combination with a k-ε turbulence model in a RANS model; introducing a perfect matched layer for sound wave propagation simulation in an unbounded region, and constructing boundary conditions suitable for the Galbrun equation through geometric transformation, complex variable definition and coordinate conversion; performing weak transformation on the Galbrun equation, embedding the boundary conditions, combining the flow field data, adopting triangular finite elements for discretization processing, constructing a global linear algebraic equation group and solving, and obtaining discrete solutions of sound field parameters.

The application discloses a kind of anti-static dust removal mechanisms for liquid crystal display screen production, belong to display panel manufacturing field.The mechanism is sequentially arranged pre-charging suspension zone, standing wave excitation stripping zone and zero potential negative pressure recovery zone along the direction of conveyance.Pre-charging suspension zone utilizes detection probe to identify electrostatic polarity, and makes microdust into electrostatic suspension state by same polarity charging component emitting transient high-voltage pulse charge, and is equipped with the flexible edge grounding component of synchronous linkage to provide charge discharge loop;Standing wave excitation stripping zone utilizes high-frequency alternating air valve drive to set micro-gap air knife of face-to-face, forms spatial oscillation pressure field with preset phase difference above panel, and directly acts on suspended microdust by generated vertical acoustic streaming excitation force and strips it;Finally, by negative pressure recovery zone, microdust is recycled and potential is zeroed.The application is coupled by electrostatic body force repulsion and aerodynamic vertical excitation force in time sequence rigidity, significantly improves the removal rate of submicron microdust, effectively prevents TFT array from being punctured.

The invention discloses a magnetostriction multi-mode ultrasonic wave prevention and removal method for ship body protection, and relates to the technical field of ship ocean engineering. The method comprises the following steps: installing a magnetostrictive transducer array in a ship body, inputting a modulated driving electric signal to the magnetostrictive transducer array based on a corresponding working mode, and exciting transducers to generate high-power mechanical vibration; the mechanical vibration is coupled to a ship body steel plate to excite an ultrasonic composite field comprising at least two modes of longitudinal waves, transverse waves and surface waves; and inhibiting the attachment of the marine organism larvae and / or removing the attached marine organisms by utilizing the interface stress, cavitation effect and sound stream generated by the ultrasonic composite field. High-strength and multi-mode ultrasonic waves can be excited through the magnetostrictive transducer, a complex stress field and a strong sound stream are generated in the hull shell, so that attached organisms are effectively removed, and a microenvironment which is not beneficial to attachment of biological larvae is created.

The application discloses a capacitive deionization seawater desalination device of an ultrasonic reinforced flow electrode charging method, after ions are adsorbed by charging the positive / negative flow electrode, the electric potential difference of the system is improved by using the electric charge loaded on the surface of the flow electrode, thereby the adsorption capacity of the opposite charge ions is strengthened; meanwhile, the ultrasonic field is coupled on the side of the current collector of the flow electrode capacitive deionization device, the collision and contact frequency between active particles and the ion migration rate are improved by using the acoustic streaming and acoustic cavitation effect generated by the ultrasonic field, thereby the adsorption efficiency and the charge loading capacity of the flow electrode are improved. Compared with the prior art, the application has the beneficial effects as follows: 1, the electric potential difference between the positive electrode and the negative electrode is increased by using the electric charge loaded on the surface of the flow electrode, the electric field driving force and the attraction force of the opposite charge ions are enhanced, thereby the ion adsorption efficiency is improved; 2, the collision and contact frequency between active particles and the ion migration rate in the flow electrode are improved by coupling the ultrasonic field with the flow electrode capacitive deionization device, thereby the charge loading capacity of the flow electrode is improved. 3, the average desalination rate of the capacitive deionization seawater desalination device of the ultrasonic reinforced flow electrode charging method is improved by more than 223.78% compared with the traditional flow electrode capacitive deionization technology, and the charge efficiency is improved from below 70% to above 90%.

The invention relates to the technical field of ultrasonic gas meter optimization, and particularly provides an ultrasonic gas meter flow channel optimization method and system based on sound stream coupling, and the method comprises the steps: building a parameterized geometric model of an ultrasonic gas meter; generating N groups of design parameter values based on the flow channel design parameters and constraint conditions, and generating a corresponding flow channel geometric model based on the parameterized geometric model; performing flow field and sound field simulation on the flow channel geometric model to obtain flow field performance and sound field performance index values of the flow channel geometric model; by taking minimization of the flow field performance index and the sound field performance index as a target, a multi-target optimization algorithm is adopted to optimize the flow channel design parameters, and optimized design parameter values are generated; and judging whether the optimized design parameter value meets a convergence condition or not, and if so, outputting a Pareto optimal solution as an optimal flow channel design. Through parametric modeling, sound stream simulation and multi-objective optimization, optimal design of the flow channel can be realized, and time and labor cost of flow channel design are effectively shortened.

The invention discloses an alloy preparation method for improving mechanical properties based on 6110 aluminum alloy component optimization, and relates to the technical field of 6110 aluminum alloy preparation, and the alloy preparation method comprises the following steps: step 1, the 6110 aluminum alloy component is subjected to optimization design, and the 6110 aluminum alloy comprises the following components in percentage by weight: the balance of Al serving as a matrix element; and 0.05-0.1% of Cr, wherein the Cr is used for refining crystal grains. By controlling the proportion of Si / Mg and Cu / Fe key elements, the strengthening potential and the structure stability of the alloy are optimized, gradient heating smelting and composite refining technologies are combined, the melt purity and the component uniformity are improved, element burning loss is effectively reduced, crystal segregation is fully eliminated through multi-stage homogenization treatment, a uniform microcosmic foundation is laid for follow-up treatment, and the high-strength and high-toughness alloy is obtained. An ultrasonic external field is introduced into the dynamic solid solution process, and the cavitation and acoustic streaming effects of the ultrasonic external field are utilized to promote the dissolution of a strengthening phase, so that a supersaturated solid solution with higher saturation and more uniform components is obtained.

The invention discloses a method for improving the capacitive deionization performance of a flow electrode, and belongs to the technical field of capacitive deionization of the flow electrode. Ultrasonic action is added in a system, ultrasonic waves generated by an ultrasonic transducer are transmitted to a flow channel through a graphite collector plate, and the laminar flow state is broken through sound streams, shock waves and micro jet flow formed by the ultrasonic cavitation effect, so that the capacitive deionization performance of the flow electrode is improved. The fluid is more turbulent; meanwhile, snakelike runners on the graphite collector plates can avoid channeling and dead zones, so that flowing electrode liquid is distributed more uniformly, and concentration polarization is further reduced; the ion adsorption rate of the electrode is improved, and the electrode is especially suitable for high-concentration seawater desalination and other scenes with high efficiency requirements; the flowing electrode liquid circulates in a short-circuit mode, the electrode liquid on the two sides flows into the same container to be mixed and reused after leaving the module, electrode regeneration can be synchronously completed without independently setting a desorption step, and the time for shutdown regeneration is saved.

The invention discloses a waste electrolyte chemical dispersion synergistic gradient oxidation decarburization method, which comprises the following steps: firstly, carrying out ultrasonic dispersion treatment on waste electrolyte by adopting a citric acid solution, promoting carbon components in the waste electrolyte to be fully dispersed by utilizing the synergistic effect of chemical surface modification and acoustic streaming effect, and improving the surface adsorption and bonding characteristics of the waste electrolyte; on the basis, a gradient low-temperature roasting process is further adopted to oxidize and decarburize the waste electrolyte: in the pre-oxidation stage, residual citric acid is effectively decomposed, and then carbon is efficiently removed by heating. The waste electrolyte chemical dispersion synergistic gradient oxidation decarburization method solves the problems that in the prior art, waste electrolyte carbon residues are difficult to recycle, and carbon bonding is difficult to oxidize and ablate, the carbon content of the waste electrolyte is reduced, and the recycling rate of the waste electrolyte is achieved.

The application discloses a battery pack thermal boundary layer destruction method and a thermal management method based on acoustic streaming effect. The method comprises the following steps: generating an alternating magnetic field outside a box body, penetrating the box body wall to drive the flexible vibration element of the inner wall to generate high-frequency micro-vibration; the vibration radiates acoustic waves in the immersed liquid, and the acoustic streaming effect is generated by utilizing the viscous dissipation of the liquid; the acoustic streaming forms local shear force in the micron boundary layer near the surface of the battery cell, and destroys the thermal boundary layer attached to the surface of the battery cell. The application also provides a thermal management method comprising the method, immersing the battery cell in the insulating cooling liquid, and simultaneously removing the air film by using the acoustic streaming. The application adopts non-contact acoustic streaming disturbance, has no mechanical wear and no sealing damage, can accurately remove the micron-level air film, reduces the interface thermal resistance, and is suitable for the full-life maintenance-free energy storage system.

To provide a battery capable of suppressing dendrite formation and ion depletion.SOLUTION: The battery may include a first electrode, a second electrode, an electrolyte, and at least one acoustic wave device configured to generate acoustic streaming during charging and / or discharging of the battery. Charging of the battery can be triggered such that cations from the first electrode migrate through the electrolyte and deposit on the second electrode, and discharging can be triggered such that cations from the second electrode migrate through the electrolyte and deposit on the first electrode. The acoustic streaming may drive mixing and / or turbulence of the electrolyte, which may increase the diffusion rate of the cations and / or anions, thereby increasing the charge rate and / or discharge rate of the battery. The mixing and / or turbulence may further prevent the formation of dendrites on the first electrode and / or the second electrode by at least homogenizing the distribution of cations and / or anions in the electrolyte.SELECTED DRAWING: Figure 1