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3175 results about "Liquid drop" patented technology

Semiconductor cleaning anti-splash shield and semiconductor cleaning equipment

The invention relates to a semiconductor cleaning anti-splash shield and semiconductor cleaning equipment, and the semiconductor cleaning anti-splash shield is used for preventing liquid drops thrown out by a rotating wafer (101) in the tangential direction from being splashed and comprises a shield body (1) which comprises a side wall (11), and the side wall (11) is annular and coaxially surrounds the wafer (101); the anti-splash assembly (2) is arranged in the cover body (1), the anti-splash assembly (2) comprises a first annular plate (21), a second annular plate (22) and an anti-splash component (20), the first annular plate (21) and the second annular plate (22) are both connected to the side wall (11) and are arranged at intervals from top to bottom in the height direction, and the anti-splash component (20) is connected between the first annular plate (21) and the second annular plate (22); the anti-splash component (20) and the side wall (11) are arranged at intervals in the radial direction of the cover body (1) to form an annular containing cavity (4), and the anti-splash component (20) is provided with a channel for liquid drops to enter the containing cavity (4).
Owner:SHENZHEN PENGXIN MICRO INTEGRATED CIRCUIT MFG CO LTD

Equipment and method for preparing spray condensation microcapsules

The invention discloses equipment and a method for preparing spray condensation microcapsules, and relates to the technical field of spray condensation microcapsule preparation, the equipment comprises a melting homogenizing kettle and a condensing tower, a spray head is arranged in the condensing tower, and a movable spray mechanism used for enabling the spray head to move circumferentially and swing back and forth at the same time is mounted on the condensing tower. Through the arrangement of the movable spraying mechanism, the spraying head can spray material liquid drops in the condensing tower in a back-and-forth swinging manner while moving circumferentially, so that the material liquid drops can be uniformly dispersed in a wider area and can be in contact with more cold air, local supercooling or superheating is avoided, and a more uniform cooling effect is obtained; meanwhile, through the matched arrangement of the spiral blades, cooling airflow can spirally flow and be uniformly distributed, the gas-liquid contact area is increased, the gas-liquid contact time is prolonged, gas-liquid exchange is more sufficient, finally, it can be ensured that each material liquid drop can be sufficiently cooled, and the embedding efficiency and the quality of microcapsules are effectively improved.
Owner:JIANGXI TIANJIA BIOLOGICAL ENG CO LTD

Nuclear reactor core channel analysis method based on two fluid models

The invention discloses a nuclear reactor core channel analysis method based on two fluid models, which comprises the following steps of: 1, establishing a fluid domain computational grid according to the structure of a nuclear reactor core or an assembly; 2, respectively establishing a control equation set and a heat conduction model of the fuel rod for the continuous gas-liquid phase and the discrete liquid drop phase; 3, considering physical phenomena such as flow heat exchange, resistance pressure drop and turbulence mixing in a reactor core, and implanting a corresponding constitutive model; 4, discretizing the control equation based on a second-order discrete format to obtain a discrete equation set; 5, dividing parallel tasks and parallel regions through an MPI parallel strategy to form a large coefficient matrix of a pressure equation; and 6, solving a discrete equation set and a large coefficient matrix through a pressure coupling semi-implicit algorithm and a stable biconjugate gradient method. According to the method, the key physical parameter distribution of the pressurized water reactor can be more accurately and reasonably calculated, so that technical guidance is provided for safety analysis and engineering design of the reactor.
Owner:XI AN JIAOTONG UNIV

Droplet device with surface tension plate

An electronically actuated droplet delivery device with a mouthpiece for inhaling fluid droplets includes an ejector mechanism having an electronic actuator operably coupled to an aperture plate. A fluid reservoir provided fluid to the ejector mechanism through a surface tension plate that increases contact between the fluid from the fluid reservoir and the aperture plate.
Owner:PNEUMA RESPIRATORY INC

Water working medium quasi-saturated compression high-temperature heat pump system based on ejector

The invention provides a water working medium quasi-saturated compression high-temperature heat pump system based on an ejector, and belongs to the field of compression heat pumps. The problems that after an existing compression system flows through a throttling valve, the superheat degree of steam exhaust is large due to high-temperature lift compression, and the loss of available energy in the throttling process from condensate to a two-phase region is too large are solved. A multi-stage spraying atomization structure is adopted, a micro-nano liquid drop mist flow with the particle size controllable to be 50-200 nm and the liquid mass fraction adjustable to be 5%-10% is formed before compression, the airflow humidity regulation and control precision is remarkably improved, the quasi-saturation compression process is matched, and the thermal matching performance and the energy efficiency level of a system are effectively improved; a main flow inlet of the jet atomizer is changed into a compressor outlet from a condenser outlet, so that the response speed is increased, and meanwhile the jet atomizer is suitable for a complex variable-working-condition system; or single-stage compression is optimized into a two-stage compression form, so that higher heating temperature and more stable system operation are realized; or liquid from a lower-pressure position is injected, so that the injection capacity is improved.
Owner:HARBIN INST OF TECH

Microfluidic system for target object pairing

The utility model discloses a microfluidic system for target object pairing, which comprises a first flow channel, a second flow channel, an oil liquid flow channel, a buffer liquid flow channel, a matching flow channel and a pairing micro valve, a first micro valve, a second micro valve and a buffer liquid micro valve are arranged, the matching flow channel is communicated to the oil liquid flow channel, and the first flow channel, the second flow channel and the buffer liquid flow channel are all communicated to the matching flow channel; when a single first target object and a single second target object exist in the matching runner, the first micro valve and the second micro valve are in a closed state, and the matching micro valve and the buffer solution micro valve are in an open state; and the buffer liquid in the buffer liquid flow channel feeds the single first target object and the single second target object in the flow channel into the oil liquid in the oil liquid flow channel to form liquid drops. According to the utility model, other first target objects and / or other second target objects can be completely prevented from entering liquid drops, so that the success rate of packaging is improved, and the cell loss caused by multiple packaging is reduced.
Owner:GUANGZHOU NAT LAB

A microbead production process with adjustable internal phase based on microfluidic technology and its application

The present invention belongs to the field of microbead preparation technology, and specifically relates to a microbead production process with adjustable internal phase based on microfluidic technology and its application. The microbead production process includes the following steps: (1) raw material transportation: the required materials are transported to the microfluidic chip separately through a pump under heat preservation conditions; (2) logistics shearing: the required materials are sheared in the microfluidic chip to obtain composite droplets; (3) cooling and molding: after the sheared droplets are cooled, they are cooled and solidified using a cooling medium to form microbead particles; (4) product collection: the microbead particles and the cooling medium are subjected to solid-liquid separation, filtered, and collected to obtain microbeads. The microbead production process of the present invention can quickly realize the continuous production of double-layer microbeads, realize the precise regulation of the inner layer of the double-layer microbeads, and quickly and accurately control the particle size of the microbeads; at the same time, it can quickly realize the production conversion between single-layer microbeads and double-layer microbeads.
Owner:MOGE UM FLOW TECH (SHANTOU) CO LTD

Corrosion resistance detection device for PFA film production

The invention discloses a corrosion resistance detection device for PFA film production, and relates to the technical field of film corrosion detection. Comprising a box body, a mounting plate is fixedly connected to the interior of the box body, a mounting frame is fixedly connected to the upper end of the mounting plate, a rotating column is arranged on the inner top wall of the mounting frame in a penetrating mode, the rotating column is rotationally connected with the mounting frame, a rotating plate is fixedly connected to the lower end of the rotating column, and a plurality of corrosive liquid dropwise adding mechanisms are arranged on the rotating plate; the multiple corrosive liquid dropwise adding mechanisms are arranged in the circumferential direction of the rotating plate at equal intervals, a rotating mechanism connected with the rotating column is arranged on the mounting frame, a mounting groove is formed in the upper end of the mounting frame, a limiting mechanism is arranged in the mounting groove, and a partition plate located below the mounting plate is fixed in the box body. According to the invention, through movement of the PFA film, different corrosive liquids can carry out corrosion resistance detection on different positions of the PFA film in sequence, so that the corrosion resistance detection process is more efficient.
Owner:NANTONG ZHICHENG TECH CO LTD

Microbead production process with adjustable internal phase based on microfluidic technology and application of microbead production process

The invention belongs to the technical field of microbead preparation, and particularly relates to a microbead production process with an adjustable internal phase based on a microfluidic technology and application of the microbead production process. The micro-bead production process comprises the following steps: (1) conveying raw materials: respectively conveying required materials to a micro-fluidic chip through a pump under a heat preservation condition; (2) material flow shearing: shearing the required material in the micro-fluidic chip to obtain composite liquid drops; (3) cooling and forming: cooling and curing the sheared liquid drops by using a cooling medium after the sheared liquid drops are cooled, so as to form microbead particles; and (4) product collection: carrying out solid-liquid separation on the microbead particles and a cooling medium, filtering, and collecting to obtain the microbeads. According to the microbead production process disclosed by the invention, continuous production of double-layer microbeads can be quickly realized, accurate regulation and control of inner layers of the double-layer microbeads are realized, and the particle sizes of the microbeads are quickly and accurately controlled; and meanwhile, the production conversion of single-layer microbeads and double-layer microbeads can be quickly realized.
Owner:MOGE UM FLOW TECH (SHANTOU) CO LTD

Method for determining critical safety diameter of emulsion drop of liquid energetic material synthesis reaction conveying pipeline

The invention discloses a method for determining the critical safety diameter of an emulsion drop of a liquid energetic material synthesis reaction conveying pipeline, which comprises the following steps of: curing and heating a sampled emulsion, determining pyrolysis kinetic parameters of the detected emulsion, constructing a heat production and heat transfer heat insulation system model of a mixed solution of an acid ester emulsion and the emulsion drop by utilizing Comsol, and determining the critical safety diameter of the emulsion drop of the liquid energetic material synthesis reaction conveying pipeline. Calculating a temperature rise change rule of the mixed liquid heat insulation system under different emulsion droplet sizes, determining a function relationship between the emulsion droplet particle size and the temperature rise of the mixed liquid heat insulation system, and deriving to obtain the critical safety diameter of the emulsion droplet; the method comprises the following steps: adsorbing emulsified liquid by using a porous particle material, testing whether the emulsified liquid explodes due to collision and friction of emulsified liquid with different pore diameters at different rates in an impact tank-piston device to obtain the relationship among the movement rate of emulsified liquid drops, the particle size of the emulsified liquid drops and the explosion risk, and determining the explosion risk of the emulsified liquid drops under a specific conveying speed condition according to the relationship. The liquid energetic material is used for synthesizing the optimal size of emulsified liquid drops in a reaction mixed solution.
Owner:NANJING UNIV OF SCI & TECH

Gas distributor and carbon dioxide absorption tower

The utility model relates to the technical field of carbon dioxide capture, in particular to a gas distributor and a carbon dioxide absorption tower. The gas distributor comprises an inner cylinder, a perforated plate and a guide plate group, a gas flow channel is formed between the outer peripheral surface of the inner cylinder and the inner peripheral surface of a tower body, and a gas inlet communicated with the gas flow channel is formed in the tower body; a plurality of through holes are formed in the perforated plate, and the perforated plate is connected to the top end of the inner cylinder; the two guide plate groups are symmetrically arranged on the two sides of the inner cylinder by taking the longitudinal axis section of the gas inlet as a symmetric plane; and each flow guide plate group comprises a plurality of flow guide plates which are distributed at intervals along the outer circumferential direction of the inner cylinder body. Smoke entering the gas flow channel can be divided into a plurality of gas flows through the two flow guide plate sets, the smoke is rapidly dispersed, meanwhile, gas and liquid can be separated in the downward flowing process of the gas flows, and therefore liquid drop entrainment is reduced; and a plurality of air flows are reflected upwards by the tower bottom, penetrate through the perforated plate and are further homogenized, so that uniformly distributed air flows are formed.
Owner:MSTN TECH CO LTD

Device for preparing double-droplet microspheres

The utility model discloses a device for preparing a double-droplet microsphere. The device comprises a fluid injection unit, a liquid injection unit and a control unit, the micro-fluidic chip comprises a cover glass, one side of the cover glass is provided with a dispensing needle a, the dispensing needle a is connected with an internal phase glass capillary tube, the internal phase glass capillary tube is partially nested in an intermediate phase glass capillary tube, the intermediate phase glass capillary tube is partially nested in an external phase glass capillary tube, and the external phase glass capillary tube is connected with the external phase glass capillary tube. A dispensing needle b is vertically arranged above one end, which is overlapped with the inner phase glass capillary, of the intermediate phase glass capillary, and a dispensing needle c is vertically arranged above one end, which is overlapped with the intermediate phase glass capillary, of the outer phase glass capillary; and a micro-droplet collection unit. According to the utility model, through the coaxially arranged glass capillary tube and the dispensing needle head communicated with the glass capillary tube, the double-droplet microsphere is prepared, meanwhile, the groove is formed in the dispensing needle head, so that the construction of a coaxial glass capillary tube micro-fluidic chip is facilitated, the preparation equipment is simple, and the operation is simple.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Gas-liquid separation device and gas-liquid separation method

The invention provides a gas-liquid separation device, which comprises: a tank body, the side wall of the tank body is provided with a gas-liquid inlet and a liquid outlet, and the top of the tank body is provided with a gas outlet; the gas-liquid separation cavity is formed in the tank body, a gas-liquid separation unit is arranged in the gas-liquid separation cavity, and the gas-liquid separation unit comprises a rotational flow plate and a baffle plate assembly located below the rotational flow plate; the gas washing cavity is formed in the tank body and is positioned above the gas-liquid separation cavity; a gas washing unit is arranged in the gas washing cavity; wherein the gas-liquid inlet penetrates through the side wall of the tank body and extends inwards to be communicated with the rotational flow plate, the rotational flow plate is configured to enable to-be-separated gas-liquid fluid from the gas-liquid inlet to rotate and then enter the baffle plate assembly so as to realize gas-liquid separation, separated gas with liquid drops moves upwards, liquid removal is carried out through the gas washing unit, and the gas washing unit is used for washing the gas with the liquid drops. The gas after liquid removal is discharged through the gas outlet, and the separated liquid moves downwards and is discharged through the liquid outlet. The invention also provides a gas-liquid separation method.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Dropping bottle with bacteria-blocking and oxygen-blocking dual-protection functions

The invention discloses a liquid dropping bottle with bacteria-blocking and oxygen-blocking dual protection functions, which comprises a bottle body, a composite film bag arranged in the bottle body, a ventilation hole formed in the bottle body, a pump body arranged on the bottle body, a trigger movably arranged on the pump body, a liquid dropping column arranged on the trigger, and a first spring arranged in the pump body, the trigger abuts against the first spring, a pump core is arranged in the trigger, a one-way valve shaft is inserted in the pump core, a first ring groove is reserved between the one-way valve shaft and the pump core, a one-way valve plate is arranged on the one-way valve shaft, a pressure limiting deformation gap is reserved between the one-way valve plate and the one-way valve shaft, and a second spring is arranged in the one-way valve shaft. The second spring abuts against the one-way valve plate, and the one-way valve plate blocks the liquid outlet hole. The liquid dripping device can play a good role in resisting oxygen and bacteria during liquid dripping, and only quantitative liquid medicine can be squeezed out no matter how much force is used for pressing the trigger, so that the liquid medicine drips in the form of liquid drops and cannot be jetted.
Owner:ZHANGJIAGANG ZHONGHUI MEDICAL PLASTIC TECHNOLOGY CO LTD

Liquid separation-convergence integrated liquid drop micro-fluidic chip and liquid drop preparation method

The invention belongs to the technical field of microfluidics, and particularly relates to a liquid separation-convergence integrated liquid drop micro-fluidic chip and a liquid drop preparation method.The liquid separation-convergence integrated liquid drop micro-fluidic chip is characterized in that a liquid drop generation unit is arranged at the communication position of a branch splitting channel and a convergence channel which is correspondingly communicated with the branch splitting channel; and under the action of continuous phase shearing force, the dispersed phase solution is sheared off by the continuous phase solution, so that liquid drops are formed. The droplet generation units are symmetrically arranged along the circumference of the channel, the distance from each unit to the center is equal, and a continuous phase solution and a dispersed phase solution encountered at each droplet generation unit are almost equivalent, so that the sizes of the generated droplets are consistent, the droplets with basically consistent sizes are obtained at a collection port, and high-flux preparation of microspheres with uniform sizes is realized.
Owner:XIAN MICRO-CHEMICAL PRECISION TECHNOLOGY CO LTD

Method for constructing food-grade Janus liquid drops with adjustable particle sizes based on multiphase spatial recombination

The invention discloses a method for constructing food-grade Janus liquid drops with adjustable particle sizes based on multiphase spatial recombination, and belongs to the technical field of liquid drop preparation. According to the preparation method, space phase behaviors of a zein solution and a sodium alginate solution are controlled, the zein solution and the sodium alginate solution which are incompatible with each other are taken as a dispersion phase, and an emulsifier is dissolved in an oil phase to serve as a continuous phase. The laminar behavior of the zein solution and the sodium alginate solution is controlled, and the food-grade Janus liquid drops are prepared under the shearing action of a continuous phase. A series of food-grade Janus liquid drops with controllable particle sizes are constructed by controlling the molecular weight of sodium alginate, the concentration of a dispersed phase, the concentration of an emulsifier, three-phase interface equilibrium and three-phase flow velocity. According to the method for constructing the food-grade Janus liquid drops, the Janus liquid drops which are uniform in particle size and stable in structure can be constructed, and meanwhile, the material for constructing the Janus liquid drops has good biocompatibility and safety.
Owner:OCEAN UNIV OF CHINA

Double-fluid nozzle and substrate processing equipment

The invention discloses a double-fluid nozzle and substrate processing equipment. The double-fluid nozzle comprises a liquid outlet main body, the first buffer part is arranged on the first extension part; a plurality of circulation channels are formed in the first buffer piece; the shell is provided with a liquid outlet, and the liquid outlet main body is sleeved with the shell; a buffer space is defined by the inner wall of the shell, the end of the liquid outlet body, the end of the first buffer piece and the side wall of the first extending part and used for gathering fluid in the second pipeline to slow down the flow speed. A substrate processing device comprises a two-fluid nozzle, a bearing part and a supply part. The bearing part is used for bearing a wafer; the double-fluid nozzle sprays fluid to the wafer; the supply part comprises a supply device, a first supply pipeline and a second supply pipeline, one end of the first supply pipeline is communicated with the supply device, and the other end is communicated with the first pipeline; one end of the second supply pipeline is communicated with the supply device, and the other end is communicated with the second pipeline. The liquid drop forming speed can be increased, and meanwhile damage to the surface of the wafer is reduced.
Owner:SHANGHAI XINYUAN MICRO ENTERPRISE DEV CO LTD

Gas-liquid redistributor for small packed tower

The utility model relates to the technical field of gas-liquid redistributors, and discloses a gas-liquid redistributor for a small packed tower, which comprises a distribution plate, gas uniform distribution holes and liquid uniform distribution holes are arranged on the distribution plate and are arranged on different circles taking the center of the distribution plate as the center, and the gas uniform distribution holes and the liquid uniform distribution holes are arranged on each circle. The gas uniform distribution holes and the liquid uniform distribution holes are alternately distributed, the distances between two adjacent circles are equal, and the liquid distribution holes of the two adjacent circles are distributed in a staggered manner; a gas distribution pipe and a liquid distribution pipe are respectively arranged above and below the distribution disc, the gas distribution pipe is connected with the gas uniform distribution holes, and the liquid distribution pipe is connected with the liquid uniform distribution holes. The gas-liquid redistributor disclosed by the utility model is suitable for being used in a small-sized gas-liquid mass transfer packed tower, has a simple structure, cuts a gas phase into smaller gas flows, uniformly distributes liquid into smaller liquid drops, and increases the contact area between the liquid and the gas, thereby improving the mass transfer efficiency.
Owner:SHAOXING XINGXIN CHEM

Methods for determining water content of hygroscopic solvents

A method for determining the water content of a hygroscopic fluid. The method includes inserting an amount of hygroscopic fluid into a fluid ejection cartridge; attaching the fluid ejection cartridge to a fluid ejection device; activating the fluid ejection cartridge to dispense a predetermined number of fluid droplets from one or more nozzles of an ejection head attached to the fluid ejection cartridge onto a substrate to determine a total mass of the fluid droplets dispensed, a velocity of the dispensed fluid droplets or a combination of the total mass of the fluid droplets dispensed and the velocity of the dispensed fluid droplets; and using an information database that correlates the water content of the hygroscopic fluid to an average mass per fluid droplet dispensed and the velocity of the fluid droplets dispensed to determine the water content of the hygroscopic fluid.
Owner:BRADY WORLDWIDE INC

Experimental device and method for researching kinetics and evaporation characteristics of liquid drops

The invention relates to an experimental device and method for researching liquid drop dynamics and evaporation characteristics. The experimental device comprises a liquid drop generation system, a metal flat plate control system, a height adjusting system and a data acquisition system, the liquid drop generation system is used for generating liquid drops impacting the metal flat plate; the metal flat plate system is used for adjusting the inclination angle of a metal flat plate to heat the metal flat plate; the height adjusting system is used for adjusting the height from the liquid drop generating system to the metal flat plate, so that the liquid drops impact the metal flat plate at different speeds; the data acquisition system comprises a high-speed camera, an infrared camera, a particle image velocity measurement device, a light source and a computer, and is used for measuring the morphological change, velocity field and temperature field of liquid drops in the process of impacting the metal flat plate; the invention further provides an experimental method. According to the invention, the morphological evolution process of the liquid drops can be measured, and the dynamics and evaporation characteristics of the liquid drops when impacting metal plates with different inclination angles and surface types can be studied.
Owner:XI AN JIAOTONG UNIV

Organic extraction device for preparing organic framework material

The invention discloses an organic extraction device for preparing an organic framework material, and relates to the technical field of extraction devices. Comprising an extraction tank, the extraction tank is provided with an upper feeding port, a lower feeding port, an upper discharging port and a lower discharging port, and fixing rings distributed in a linear array mode are installed in the extraction tank; the fixed shell is rotationally connected to the extraction tank; the plurality of first telescopic shells and the plurality of second telescopic shells are embedded in the fixed shell; the first turntable is in limited sliding connection with the fixed shell; and the second turntable is connected to the fixed shell in a limiting and sliding manner. By detecting the concentration of an organic component in a stock solution, when the concentration of the organic component is increased, the distance between the first turntable and the second turntable and the fixed ring is reduced, so that the flow area of liquid in the extraction tank is reduced, a higher shearing force is generated when the solution flows, the dispersion degree of liquid drops of the solution is increased, and the extraction efficiency is improved. The mixing speed of the stock solution and the extractant is accelerated, and the mass transfer efficiency is improved.
Owner:SHANDONG PETROCHEMICAL INST

Jet type micro-droplet generation device and micro-droplet generation method thereof

The invention discloses a jet type micro-droplet generation device and a micro-droplet generation method thereof, and belongs to the technical field of liquid-liquid heterogeneous / homogeneous reaction devices. The device comprises an injection pipe, the injection pipe is used for conveying a first liquid phase, the interior of the injection pipe is of a cavity structure, the injection pipe comprises a feeding section, a mixing section, a diffusion section and a feeding pipe, the feeding section, the mixing section and the diffusion section are sequentially communicated and coaxially arranged, the feeding pipe is used for conveying a second liquid phase, and the feeding pipe penetrates through the side wall of the feeding section and extends into an inner cavity of the injection pipe; a discharging opening of the feeding pipe is formed in the mixing section, and an annular flowing space is formed by the outer wall of the feeding pipe and the inner wall of the mixing section. The feeding pipe extends into the mixing section to form an annular flowing space, and a second liquid phase is dispersed into small liquid drops by fully utilizing the annular space and a strong shear flow field in the mixing section. The method is suitable for a liquid-liquid heterogeneous / homogeneous system, including a liquid-liquid heterogeneous / homogeneous reaction crystallization system generated by solid particles.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1

Horizontal coalescence phase splitter suitable for phase-change absorbent lean-rich liquid phase splitting

The invention provides a horizontal coalescence phase splitter suitable for phase-change absorbent lean and rich liquid phase splitting. The horizontal coalescence phase splitter sequentially comprises a section I phase splitting buffer area, a section II coalescence phase splitting area and a section III gravity phase splitting area in the fluid flowing direction. The I-section split-phase buffer area is provided with a tangential feeding hole and a flow guide baffle plate; the section II coalescence split-phase area is filled with stainless steel mesh coalescence filler subjected to composite modification of AP adhesive and nano Al2O3; and a heavy phase outlet and a light phase outlet are formed in the section III gravity phase-splitting area. According to the horizontal phase splitter, the gas-liquid interface area is large, the gas-liquid movement directions are perpendicular to each other, gas-liquid phase balance is facilitated, and the separation effect is better; in addition, the liquid level is stable, when the incoming liquid flow changes, the liquid level change of the horizontal separator is small, the buffering capacity is high, and stable flow can be provided for downstream equipment; in addition, by adding the composite modified stainless steel mesh coalescence filler into the phase splitter, tiny liquid drops can be effectively captured and coalesced, the separation effect is further improved, and comprehensive liquid-liquid separation is achieved.
Owner:CHINA HUADIAN ENG CO LTD +1

Fine atomization resonant cavity structure and gluing method

The invention relates to the technical field of photoresist coating of wafer level packaging, in particular to a fine atomization resonant cavity structure and a gluing method.The fine atomization resonant cavity structure comprises a resonant cavity, a spherical resonant cavity is arranged in the resonant cavity, and the diameter of the spherical resonant cavity is integer multiples of the half-wavelength of ultrasonic excitation; the top end of the resonant cavity is provided with an opening for ultrasonic excitation input, and the bottom end of the resonant cavity is provided with an acoustic resonance resonant cavity; and the liquid supply needle is inserted into the acoustic resonance cavity from the resonance cavity. According to the structure and the method, the uniformity of photoresist spraying and the quality of a film layer can be improved, accurate sound field regulation and control are utilized, a micro-channel is not needed to provide fluid flow, and the potential problem of spray hole blockage is avoided; the acoustic wave is focused in the resonant cavity, and liquid drops can be broken in an extremely short time, so that the atomization particle size is small, the concentration ratio is high, and the film thickness of the photoresist is uniform and controllable; and the film layer uniformity is high, the film layer defects are few, the conformal coating of the complex three-dimensional microstructure can be realized without being limited by the surface morphology of the wafer.
Owner:CHENYANG QINGLAI MICROELECTRONICS TECHNOLOGY CO LTD

Liquid drop generating device for low-temperature sample injection

The utility model relates to the field of liquid drop microfluidics, in particular to a low-temperature sample injection liquid drop generating device. The utility model discloses a low-temperature sample injection liquid drop generation device which comprises a gas source, a pressure controller, a water-phase sample injection bottle, an oil-phase sample injection bottle, a water-phase sample injection pipe, an oil-phase sample injection pipe, a collecting bottle, a temperature control device and a liquid drop generation chip, and the liquid drop generation chip comprises at least one water-phase chamber, one oil-phase chamber and one sample discharge chamber. Temperature control devices are arranged at the sample introduction bottle and the collection bottle; the device is simple in structure, temperature adjustment can be carried out in the process from liquid drop generation to liquid drop collection completion, and the problem that reaction of liquid drops generated firstly and liquid drops generated later is not synchronous is solved, so that experimental errors are reduced, and experimental accuracy is improved.
Owner:LUOYANG TMAXTREE BIOTECH CO LTD

Systems and methods for generating droplets and performing digital analyses

This disclosure provides for devices, methods, and systems for generating a plurality of droplets within a collecting container at an extremely high rate (e.g., of at least 1 million droplets per minute, etc.), each of the plurality of droplets comprising an aqueous mixture for a digital analysis, wherein upon generation, the plurality of droplets is stabilized in position within a region of the collecting container. The inventions enable partitioning of samples for digital analyses at unprecedented rates, where readout of signals from targets within such partitions can still be achieved in accordance with various assays.
Owner:COUNTABLE LABS INC

Automatic premixing equipment for float glass production line

The invention discloses automatic premixing equipment for a float glass production line, and relates to the technical field of glass production, the automatic premixing equipment comprises a premixing tank, a cover plate, a heating wire arranged outside the premixing tank and a stirring frame arranged in the premixing tank, the stirring frame is internally provided with a cleaning mechanism, and the cleaning mechanism comprises a scraping assembly; through the designed cleaning mechanism, the scraper rotates along with the driving assembly and moves up and down, splashing raw material liquid drops on the inner wall of the premixing tank and an area above a liquid level line can be scraped in real time, drying and solidification of the raw material liquid drops are avoided, the two groups of rolling brushes rotate oppositely and move up and down, raw materials attached to the surface of the scraper can be synchronously cleaned, the scraping effect is ensured, and the production efficiency is improved. The inner hydrophobic coatings on the inner wall of the premixing tank and the bottom of the cover plate can reduce adhesion of raw material liquid drops on the top of the premixing tank, subsequent cleaning can be facilitated, and dry and solidified raw material liquid drops are prevented from being mixed into a new batch of raw materials.
Owner:BENGBU CTIEC INFORMATION DISPLAY MATERIALS