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2601 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

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

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

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

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

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

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

Double-emulsification high-flux micro-fluidic chip

The utility model provides a double-emulsification high-flux micro-fluidic chip. The double-emulsification high-flux micro-fluidic chip comprises a substrate, a middle layer and a cover plate, according to the utility model, the substrate is not processed, the main micro-channels are processed on the two sides of the middle layer, and the cover plate is punched, so that fluid can be conveniently introduced. A plurality of liquid drop generation units based on the flow focusing technology are designed on one side of the middle layer so as to generate liquid drops for the first time, and a stepped liquid drop generation structure based on interfacial tension is designed on the other side of the middle layer so as to generate liquid drops for the second time. The structures on the two sides of the chip are connected through the through holes. The preparation method comprises the following steps: carrying out photoetching to form a mold, preparing the middle layer by using the mold, forming the required micro-channels on the two sides of the middle layer, punching on the cover plate, and finally bonding the substrate, the middle layer and the cover plate. Through the design of the flow channel and the structure, a large number of double-emulsion droplets can be rapidly prepared, the production efficiency is improved, and the double-emulsion droplet preparation device is suitable for various applications such as drug delivery and biological research.
Owner:BEIJING UNIV OF CHEM TECH

Uniform tin droplet target generating device for inhibiting axial shaking of tin droplets

The invention provides a uniform tin droplet target generating device for inhibiting axial shaking of tin droplets, which comprises a crucible, tin melt, a nozzle, a heating assembly and a disturbance assembly, the tin melt is located inside the crucible, and the heating assembly is located outside the crucible and is used for heating the tin melt in the crucible; the nozzle is located at the bottom of the crucible and used for spraying uniform tin liquid drops and reducing axial shaking of the tin liquid drops. The disturbance assembly comprises a signal generator, a piezoelectric transducer and a vibration transmission rod, the vibration transmission rod is located in the molten tin, the piezoelectric transducer is located above the crucible and connected with the vibration transmission rod through a connecting piece, and the signal generator is connected with the piezoelectric transducer; a sine disturbance signal generated by the signal generator is provided for the vibration transmission rod through the piezoelectric transducer, and the disturbance signal is transmitted into molten tin through the vibration transmission rod, so that the jetted tin jet flow is broken into uniform liquid drop flow; according to the device provided by the invention, the distance between the liquid drops can be regulated and controlled; the designed nozzle can reduce the axial jitter of the liquid drop flow and increase the axial stability of the liquid drop.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

A method and device for multi-layer droplet vacuum distillation

A method and apparatus for multi-layer droplet vacuum distillation, comprising an upper cover, a furnace body, and a distillation chamber formed by the upper cover and the furnace body; a feed pipe is mounted on the upper cover, and a vacuum displacement chamber is provided on the feed pipe; a condensation outlet is provided on the furnace body, a discharge port is provided at the bottom of the furnace body, and a plurality of heating wires are provided within the furnace wall; the distillation chamber is provided with a plurality of layers of porous trays mounted on the furnace body, and a plurality of holes are distributed on the bottom surface of the porous trays. The method mainly comprises the following steps: loading - solution droplet droplet droplet droplet droplet droplet droplet droplet polymerization - repeated distillation - purified solution collection. The present invention increases the proportion of atomized droplets, increases the droplet gas-liquid interface, and prolongs the duration of the droplet atomization state by providing a plurality of layers of porous trays, thereby improving the distillation efficiency of the device.
Owner:XI AN JIAOTONG UNIV +1

A corrosion resistance testing device for PFA film production

This invention discloses a corrosion resistance testing device for PFA film production, relating to the field of film corrosion testing technology. It includes a housing, with a mounting plate fixedly connected inside the housing. A mounting frame is fixedly connected to the upper end of the mounting plate. A rotating column is penetrating the inner top wall of the mounting frame and rotatably connected to the mounting frame. A rotating plate is fixedly connected to the lower end of the rotating column. Multiple corrosive liquid droplet application mechanisms are provided on the rotating plate, evenly spaced along the circumference of the rotating plate. A rotating mechanism connected to the rotating column is provided on the mounting frame. A mounting groove is provided at the upper end of the mounting frame, and a limiting mechanism is provided inside the mounting groove. A partition plate is fixed inside the housing, located below the mounting plate. This invention, through the movement of the PFA film, enables different corrosive liquids to sequentially test the corrosion resistance of different positions on the PFA film, making the corrosion resistance testing process more efficient.
Owner:NANTONG ZHICHENG TECH CO LTD

Device and method for continuously generating liquid drops

The invention provides a liquid drop continuous generation device which comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel comprise first positions which are tightly attached to each other, and each first position comprises a through hole communicating with the first flow channel and the second flow channel; the first flow channel and the second flow channel are used for introducing a first liquid and a second liquid respectively; the special ultrasonic device can act on the first liquid in the first flow channel, when the special ultrasonic device is driven in a first power period, an acoustic beam current facing the through hole is generated in the first liquid, the acoustic beam current enters the second liquid through the through hole, and liquid drops formed by the first liquid are formed in the second liquid. The invention also correspondingly provides a method for continuously generating liquid drops. The liquid drop generation mode is more flexible, the controllability is higher, and the cost is lower.
Owner:CONVERGENCY (TIANJIN) BIOTECH LTD

Leak detection method, device and system for pressure vessel

The invention relates to the technical field of sealing performance detection, in particular to a pressure vessel-oriented leakage detection method, device and system, and the method comprises the steps: respectively obtaining the acoustic emission signals of each detection sensor on the outer wall surface of a pressure vessel and a guard sensor right above the detection sensor, and the liquid level height at each moment; judging the appearing acoustic emission event; obtaining each event set and a noise interference degree corresponding to the event set, and dividing the event sets into a noise event set and a non-noise event set; and determining a sound source estimation value and a liquid drop estimation value to obtain a modal decomposition layer number, performing signal reconstruction on all modal components corresponding to non-noise through modal decomposition, and positioning the leakage position of the pressure vessel. According to the method, the number of decomposition layers of the modal decomposition algorithm is dynamically adjusted, insufficient decomposition or excessive decomposition of the mode of the acoustic emission signal is avoided, the filtering effect on the acoustic emission signal is improved, and the leakage point of the pressure vessel can be positioned more accurately.
Owner:SINOPEC PIPELINE TECH SERVICE CO LTD

Warm forging reverse extrusion die device

The invention belongs to the technical field of reverse extrusion dies, and particularly relates to a warm forging reverse extrusion die device which comprises a main body and a cleaning assembly arranged on the main body and further comprises a forging and pressing mechanism and a pretreatment assembly, the forging and pressing mechanism is arranged on the main body, and the pretreatment assembly is arranged on the main body; the forging and pressing mechanism comprises a reverse extrusion die, a die wall spraying assembly and an air outlet assembly, the reverse extrusion die is arranged on the forging and pressing mechanism, the die wall spraying assembly is arranged on the forging and pressing mechanism, and the air outlet assembly is arranged on the reverse extrusion die; through the arrangement of the forging and pressing mechanism, nitrogen compressed in a nitrogen storage tank enters a compression cavity through an output pipe II, enters a vent pipe through a round hole after being mixed with an atomized lubricant, and finally is sprayed out and sprayed on the inner wall of the mold cavity through an air outlet I, so that micron-sized liquid drops are formed to cover the surface of the inner wall of the mold cavity, and the friction coefficient is reduced.
Owner:江苏大洋精锻有限公司

Spray monitoring systems, devices, and methods

A method of monitoring agricultural spray performance includes spraying a fluid from spray nozzles, sensing spray parameters (e.g., droplet size, a flow rate, an application density, or a pressure of the fluid) for the spray nozzles, receiving the spray parameters, generating an average spray parameter value, determining a minimum spray parameter value and a maximum spray parameter value, and displaying the average, minimum, and maximum spray parameter values. Other methods include spraying a fluid from a spray nozzle, sensing a spray parameter for the spray nozzle, detecting that the spray parameter has exceeded a pre-defined threshold value, displaying an alarm, and ceasing spraying the fluid from the spray nozzle. A user interface continues to display the alarm after the act of ceasing spraying the fluid. Related systems and other methods are also disclosed.
Owner:PRECISION PLANTING LLC

Particle sorting system and particle sorting method

To provide a technology for improving accuracy in a technology for sorting particles contained in a fluid. Provided is a particle sorting system including: a first detection unit that detects light from particles contained in a fluid; a vibration element that forms a droplet containing the particles; a second detection unit that is arranged downstream of the first detection unit and detects light from the particles in a fluid stream containing the droplet; and a sorting control unit that controls sorting of the particles on the basis of a delay time from detection by the first detection unit to formation of the droplet; in which the sorting control unit identifies a parameter used for calculation of the delay time from two or more feature values acquired by the second detection unit using two or more different parameters.
Owner:SONY GROUP CORP

Underground coal mine wet-type centrifugal dust removal mechanism, dust removal system and use method of dust removal system

The invention discloses an underground coal mine wet-type centrifugal dust removal mechanism, a dust removal system and a use method of the dust removal system. The mechanism comprises an inner shaft, a middle barrel and an outer barrel which are coaxially arranged, a second blade is arranged on the outer side of the inner shaft; a plurality of through holes are formed in the peripheral side of the middle barrel, and first blades are arranged on the inner side of the middle barrel; a first annular area is formed between the middle barrel and the inner shaft, a second annular area is formed between the middle barrel and the outer barrel, and the inner shaft and the middle barrel are driven to rotate in the same direction. Dust-containing fluid enters from one end of the first annular area and is discharged from the other end of the first annular area or is upwards discharged from a hollow hole of the inner shaft; and dust-containing liquid drops subjected to rotating centrifugation are discharged from the sewage draining exit. A controllable forced rotating flow field can be formed, so that dust-containing fluid is subjected to larger centrifugal force, stress is uniform, the track is stable, the risk of impact rebound is reduced, fine dust capture and gas separation are completed, decoupling of centrifugal separation and collection of the dust-containing fluid is achieved, and the dust removal effect is better.
Owner:ANHUI UNIV OF SCI & TECH

Immersed rotating packed bed combined coil device and method for reaction extraction

The invention discloses an immersed rotating packed bed combined coil device and method for reactive extraction, and the combined coil device comprises a shell, a liquid inlet, a sealing assembly, a liquid premixing pipe, a packing assembly, a heat exchange jacket, a liquid emptying port, a liquid outlet and a spiral coil assembly; according to the device, a reactor cavity is completely filled with liquid, so that an immersed reaction environment is formed; and a strong shearing effect is generated by utilizing the supergravity silk screen filler, so that rapid heterogeneous mixing is realized, and the reaction selectivity is improved. Meanwhile, a supergravity reaction area and a coil flow area are combined into a whole, the spiral coil can repeatedly change the flow direction and form vortex to realize continuous flow of the material and maintain the dispersion state of liquid drops, and the retention time of the material is flexibly regulated and controlled by adjusting the length of the coil, so that the reaction conversion rate is remarkably improved.
Owner:BEIJING UNIV OF CHEM TECH

High-performance spraying type saturator

The utility model relates to the technical field of coking, in particular to a high-performance spray type saturator. The main body structure is a vertical container, the lower part of the container is a crystallization chamber, the upper part is an absorption chamber, and the absorption chamber is communicated with the crystallization chamber through an inner conical section and a downcomer; the lower part of the spiral deacidification device is positioned in the absorption chamber, the upper part of the spiral deacidification device is higher than the absorption chamber, and the spiral deacidification device, the absorption chamber and the crystallization chamber are coaxially arranged. Coke oven gas enters the absorption chamber of the saturator from the gas inlet and is in countercurrent full contact with spraying mother liquor in the absorption chamber to remove ammonia in the gas, then the gas enters the spiral acid remover, and most liquid drops in the gas are removed under the action of a spiral structure, so that the gas and the liquid are better separated, and meanwhile, the gas flow resistance is reduced.
Owner:ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC