35 results about "Ultrasound cavitation" patented technology

The invention relates to a method for efficiently synthesizing graphene-polydimethylsiloxane (PDMS) functional sponge. The method comprises the following steps: (1) preparing a uniform suspension solution of graphene-PDMS prepolymer-diluent by means of an ultrasound cavitation effect; (2) coating the graphene-PDMS mixture to the surface of a template agent by utilizing the volatilization effect of a solvent; and (3) performing cross-linking and curing on PDMS, and removing the template and the dried sample to obtain the graphene-polydimethylsiloxane functional sponge. The synthesizing process is simple and efficient, and can be used for solving the defect that nano-additives are easily coagulated and easily separated in the using process; and the prepared functional sponge shows the characteristics of unique surface structure, excellent mechanical performance, special moistening performance, flexible plasticizing performance and the like. The graphene-polydimethylsiloxane functional sponge is applied to separation of oil or a non-polar organic solvent in a water body, has high adsorption capability, high adsorption speed, strong selectivity and good recycling capability, and has potential application values in the fields of crude oil leakage treatment, industrial organic liquid waste treatment and the like.

Ultrasound methods and apparatus for mixing two or more different liquids are disclosed. The ultrasound methods and apparatus may mix varied components including drugs, polymers, and coatings for application to a variety of medical apparatus surfaces. The apparatus and technique can generate a proper mixture which is uninterruptedly/continuously delivered to the surface of the medical apparatus. The apparatus may include specific ultrasound transducer/tip configurations which may allow for the mixing of different liquids in a mixing camera located inside of the vibrating tip. The apparatus and methods of the present invention may mix different drugs, applying them to stent surface using different effects like ultrasound cavitation and radiation forces. Furthermore, the disclosed methods and apparatus may generate a mixture and may deliver a targeted, gentle, highly controllable dispensation of continuous liquid spray which can reduce the loss of expensive pharmaceuticals.

The invention relates to an electroforming combined processing device and an electroforming groove used in the device. The device comprises an electroforming mandrel supporting device and the electroforming groove, wherein, an energy transducer device is arranged on the electroforming mandrel supporting device or/and inside the electroforming groove, and an energy transducer of the energy transducer device is in electric connection with an ultrasonic generator. A multi-frequency ultrasound irradiating system consisting of cathode ultrasound and groove type ultrasound is acted on the electroforming process in a way of alternating coupling, and more cavitation cases are generated by the ultrasound vibration of the cathode mandrel and the ultrasound vibration of an electrolysis bath to obtain intensified ultrasound cavitation effect, thereby intensifying the conflict and perturbation on the electroforming mandrel surface, effectively removing bubbles on the electrode surface, ensuring that the current passes through the electrode smoothly, increasing the moving speed of positive ions to the cathode, reducing the concentration polarization in order to increase the electroforming speed, thinning crystal grains of the metal electrocrystallization, and obtaining an electroforming product with even surface and even and compact tissue.

The invention provides a traveling wave type ultrasound reaction vessel, which relates to a device for processing liquid by using the ultrasound cavitation effect. The traveling wave type ultrasound reaction vessel comprises a box body (3), at least one pair of ultrasound energy exchangers and an ultrasound energy exchanger driving circuit, wherein the box body (3) is used for containing liquid to be processed, each pair of ultrasound energy exchangers consists of a first energy exchanger (2) and a second energy exchanger (6) which are respectively arranged on the box wall in opposite directions, and ultrasound traveling waves are formed in the box body of the reaction vessel by the overlapping of ultrasound standing waves with the 90 degrees of phase difference on space and 90 degrees of phase difference on time. The sound reaction vessel uses a traveling wave ultrasound field for working. Although each field point has different time phases, each field point has the same sound pressure amplitude value in theory. Because the intensity of the sound cavitation effect in the liquid only depends on the sound pressure amplitude value, and is irrelevant with the phases of the sound pressure, the sound cavitation effect in the traveling wave ultrasound field is more uniform than that in the standing wave ultrasound field.

The invention discloses an extraction method of Cinnamomum camphora seed oil by ultrasound-assisted compound enzyme. The technical scheme comprises steps of: drying Cinnamomum camphora seeds, crushing, adding a buffer, adding compound enzyme, adding petroleum ether, carrying out ultrasonic treatment, separating grease, recovering petroleum ether, carrying out vacuum drying, and acquiring the Cinnamomum camphora seed oil. By the utilization of ultrasound cavitation, high-frequency oscillation, emulsification and diffusion effects, plant cell walls can be broken so as to accelerate diffusion and releasing of grease components and make the grease components fully contact with a solvent for grease extraction. In addition, by the ultrasonic treatment, enzyme molecular conformation may be changed and catalytic activity of compound enzyme is raised. Therefore, the extraction effect of the Cinnamomum camphora seed oil is enhanced. By the adoption of the method provided by the invention, the recovery rate of the Cinnamomum camphora seed oil can reach 36%. The invention can provide a Cinnamomum camphora seed oil raw material for relative industries.

The invention relates to a complex frequency focused ultrasound non-invasive fat dissolving method and device. The invention is characterized in that low frequency ultrasound and medium high frequency high-power focused ultrasound are comprehensively applied to act on subcutaneous fat simultaneously, a mode of dissolving the subcutaneous fat by complex frequency is utilized, and long-time low frequency low-power ultrasound stably performs ultrasound cavitation in subcutaneous fat cells, thus interior tension accumulation is close to a critical threshold; because the medium high frequency high-power focused ultrasound waves which are instantly transmitted can focus the ultrasound waves within an accurate focusing range, the ultrasound waves can selectively act on the subcutaneous fat cells without damaging the surrounding tissues; and the medium high frequency high-power focused ultrasound waves which are transmitted instantly can induce instant unstable ultrasound wave cavitation under the condition that the stable cavities in the subcutaneous fat cells are close to the critical threshold, and explosion is induced in the subcutaneous fat cells to promote the subcutaneous fat cells to dissolve.

The invention relates to a calcium-based desulfurizer ultrasound loading method for coal burning or gas desulphurization in the chemical technology field. The steps are as follows: coal dust and calcium-based desulfurizer are mixed based on the calcium sulfur molar ratio that Ca/S equals to 0.5-3.5. The mixture is added to the water and processed ultrasound treatment under normal temperature. The treated sample is processed filtration and dried under the inert atmosphere. At last the coal dust contained with calcium is made. The invention uses the ultrasound treatment method, which not only makes the desulfurizer and the coal dust sufficiently mixed, the more important is that the surface of the coal dust is oxidized by using the chemical reaction of ultrasound cavitation, and the oxygen contained functional group is produced which can process ion exchange with the calcium ion in the solution, and the loading of the calcium is realized. The calcium bases are more evenly distributed on the surface of the coal dust, and the form that the fine calcium-based particle packs the coal dust is formed, at the same time, the highest desulfurization rate is achieved. The utilization rate of the desulfurizer is high. The energy consumption of the equipment is low. The treatment time is greatly reduced. The heat valve loss of the coal dust can not be caused.

The invention discloses a flow control microbubble-ozone coupling based water treatment device and a water treatment method. The device comprises an oxygen supply source (1), an ozone generator (2), apressure adjustment filter component (4), a flow control component (6) and to-be-treated water tank (7) that are sequentially and mutually connected through flow guide pipes (9) and further comprisesan ultrasound component (11), wherein the to-be-treated water tank (7) is internally provided with ultraviolet radiation components (10). According to the device and the method, a microbubble technology is used for quickly improving ozone mass transfer efficiency and ozone solubility; at the same time, ultrasound is used for inducing microbubble breakage to generate free radicals; synchronous ultrasound cavitation pyrolysis and ultraviolet radiation promote ozone to generate the free radicals to improve productivity of the free radicals; the device and the method are applied to deep treatmentof secondary effluent of an urban sewage plant; an organic content of the secondary effluent is reduced; an organic matter structure of the secondary effluent is changed; and the biodegradability ofthe secondary effluent is improved.

The invention relates to a method used for ultrasonic treatment of waste water. The method comprises following steps: a water purifying agent is added into pulping waste water for uniform stirring so as to obtain a waste water-water purifying agent mixed solution; the waste water-water purifying agent mixed solution is delivered into a reactor for heating reaction, after heating reaction the processed waste water-water purifying agent mixed solution is subjected to ultrasonic reaction for 0.2 to 5h; precipitates formed in the obtained processed waste water are removed via filtering, and an obtained product is subjected to ultrasonic treatment for a second time so as to degrade organic pollutant residues in the waste water; precipitation is carried out, precipitates are removed, and obtained waste water is discharged or recycled; the obtained precipitates are subjected to drying and incineration so as to realize ultrasonic treatment of paper-making pulping waste water. Occupied area of equipment used in the method is small; treatment speed is fast; combination with other water treatment methods can be realized; strong oxidative radicals obtained via ultrasound cavitation effects are used for decoloration of waste water obtained via biochemical treatment; bacteria left in waste water after crushing are capable of improving dewatering effects of subsequent waste water sludge and increasing sludge dryness degree, so that incineration treatment of sludge is more convenient, and economic and social benefits are great.

The invention discloses a coaxial type ultrasound and resistance coupling welding device and a welding method. The welding device comprises an upper ultrasound applicator, an upper annular electrode, a lower ultrasound applicator and a lower annular electrode, wherein the upper ultrasound applicator is coaxially sleeved with the upper annular electrode, and the lower ultrasound applicator is coaxially sleeved with the lower annular electrode. The upper ultrasound applicator and/or the lower ultrasound applicator are/is connected with a first servo pressurization device, and the upper annular electrode and/or the lower annular electrode are/is connected with a second servo pressurization device. The welding method includes a prepressing step, an electroplastic induction solid-phase connecting step, a nugget forming step and an ultrasound vibration cooling crystallization step. The coaxial type ultrasound and resistance coupling welding device and the welding method can guarantee that ultrasound vibration and resistance heating can simultaneously act on a welding spot, the ultrasound welding process and the resistance spot welding process are coupled effectively, the ultrasound cavitation cleaning effect is introduced, and metal generates the electroplastic effect and the high-frequency ultrasound fine grain effect in the welding procedure, so that nonferrous metal, high-strength steel and other typical metal materials difficult to weld can be welded in a high-efficiency, high-quality and low-energy-consumption mode.

The invention relates to an ultrasound-assisted column implanting method for CuCGA (Ceramic Copper Column Grid Array) device packaging, and relates to the technical field of microelectronic packaging.The invention aims to solve a problem that the column implanting quality of devices is easy to be affected by assistant dies and has poor heat transfer, welding spot porosity and welding column scratches in the traditional method. The method comprises the steps of printing soldering paste with non-eutectic point solder components on welding pads arrayed in an array mode of a chip carrier substrate and a printed circuit board, and realizing solder sphere placement on the bonding pad through reflow soldering; then forming positioning holes with the same size in the arrayed solder spheres; and inserting copper columns with the same specifications into the positioning holes of the solder spheres arranged in an array mode at two ends of the substrate, and achieving double-sided implantation connection of the arrayed copper columns by adopting an ultrasound-assisted solid-liquid coexistence zone solder reflow soldering method. Ultrasound cavitation can promote the destruction of an oxide film on the surface of the copper column, the micro-flow of the solder and the inter-diffusion of interfacial atoms, and can refine the solder structure, reduce the porosity and improve the joint strength. The ultrasound-assisted column implanting method is applied to CuCGA device column implanting without being die assistance.

The invention discloses a preparation method of squid water-soluble melanin chelated calcium salt. Aiming at the technical problem that squid natural melanin is poor in solubility and cannot be fullychelated with inorganic calcium salt in a solution system, the invention constructs an integrated technology system containing a technology integrating ultrasonic cavitation and melanin chelation, a centrifuge nanofiltration membrane separation technology and a spray drying technology, so that the squid water-soluble melanin chelated calcium salt is prepared, has mild reaction conditions and controllable quality, and is suitable for large-scale production. The prepared squid water-soluble melanin chelated calcium salt is concentrated in average relative molecular mass, good in solubility, highin bioavailability, high in safety and free of toxic and side effects, and can be applied to the field of health foods.

Growth in body tissue is slowed, arrested or reversed. In one aspect, this is accomplished by providing bubbles (S315), and delivering, to cause temporary change in physiology that at least one of retards, arrests and reverses said growth, a series of one or more pulses (206) of energy to respective focal points (213) at the site of the growth. In another aspect, temporary change in physiology, such as transient vasospasm (216) in vasculature of a neoplasm, is induced via the mechanical, non-thermal effects of fluid cavitation caused by the pulses. The bubbles, for facilitating the cavitation, in some embodiments, are afforded by administration of a microbubble agent to the host.

An enhanced advanced oxidation procedure comprises the steps of: forcing treated solution to pass through at least one flow-through tubular reactor chamber (24) of a ultrasound device (20); operating ultrasound transducers (26) which are longitudinally linear distributed in string and fixedly disposed along a length L of the at least one tubular reactor chamber (24), in order to cause cavitation along a width dimension WD; and operating the ultrasound transducers (26) and a circulating pump (3) to force the treated solution (10) to flow through the at least one flow-through tubular reactor chamber (24) for a number of cycles selected from a group consisting of 1 to 10 cycles per hour by using a frequency in a range of 15 kHz to 50 kHz and an an energetic load of 0.1 to 1.5 kW h/m, wherein the at least one flow-through tubular reactor chamber is adapted for achieving an ultrasound cavitation exposure time of the treated solution for a period of time of 1 to 60 seconds.

The invention discloses a method and device for modifying surfaces of the inner wall and the outer wall of a cavity based on ultrasonic cavitation, and belongs to the technical field of ultrasonic cavitation surface modification. The device comprises a device supporting unit, an ultrasonic cavitation unit, a workpiece clamping unit and a cooling liquid circulating unit. The surfaces are eroded by micro jet flow and shock waves generated by collapse of ultrasonic cavitation bubble groups to form a micron-sized structure, nano particles are projected to the surfaces by the jet flow and are effectively anchored, and a nano-micron composite structure is formed. The problems of high cost, environmental pollution, weak binding force and the like of a traditional modification method are solved. Particularly, the device can be used for realizing surface modification of a small-size cavity, the technological process is simple, and the prepared surface is good in performance.