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144 results about "Liquid dynamics" patented technology
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Apparatus and method for testing solid-liquid dynamic and static contact angles by actual liquid droplet method
InactiveCN101865807AHigh precisionEasy to operateSurface tension analysisPeristaltic pumpSmall droplet
The invention discloses an apparatus and a method for testing solid-liquid dynamic and static contact angles by an actual liquid droplet method. The method comprises the following steps of: during the testing, placing a solid phase sample on a sample table; controlling X, Y and Z of the sample table to move to a focusing position of a lens; sucking the liquid phase sample into a micro sample injector, injection pump or peristaltic pump; controlling the X, Y and Z of the sample injector to move to the focusing position; dripping a small droplet of the liquid and adsorbing the droplet to a needle head; moving the needle head to the surface of the solid phase sample until the liquid phase sample is adsorbed to the surface of the solid; making a software system control an optical imaging system (CCD) to capture a real-time picture and analyzing the picture by using the actual liquid droplet method; and displaying calculated solid-liquid contact angle value, solid surface free energy value and adhesion work value and managing the values by a database. The apparatus and the method can completely improve the accuracy of the analysis of the solid-liquid interfacial tension, are simple to operate, can be widely applied and have high popularization value.
Owner:上海梭伦信息科技有限公司
Inkjet recording medium and ink set, and inkjet recording method
ActiveUS20130002776A1Measurement apparatus componentsDuplicating/marking methodsChemical structureOrganic solvent
A inkjet recording medium and ink set including ink containing water, a hydrosoluble organic solvent comprising an amide compound represented by the following Chemical Structure 1, a surface active agent; and a coloring agent, and a recording medium containing a substrate; and a coated layer on at least one side of the substrate, wherein the transfer amount of pure water to the recording medium having the coated layer is 2 ml / m2 to 35 ml / m2 during a contact time of 100 ms and 3 ml / m2 to 40 ml / m2 during a contact time of 400 ms when measured by a liquid dynamic absorption tester at 23° C. and 50% RH:
Owner:RICOH KK
Intelligent infusion device
ActiveCN104784771AMonitor drop rateRealize automatic integrationFlow monitorsLiquid temperatureAutomatic control
The invention discloses an intelligent infusion device. The intelligent infusion device comprises an infusion bottle control mechanism, a puncture outfit mechanical arm mechanism, an infusion liquid dynamic monitoring mechanism, an infusion liquid temperature control mechanism, an automatic needle plugging and unplugging mechanism, a central control station and a central control unit. The central control unit corresponds to the puncture outfit mechanical arm mechanism, the liquid dynamic monitoring mechanism, the liquid temperature control mechanism and the automatic needle plugging and unplugging mechanism. The intelligent infusion device has the advantage that automatic integration in the infusion process can be achieved, which is concretely embodied in that an infusion bottle can be automatically changed; infusion dripping speed, flowing speed and liquid bubbles are monitored, the infusion dripping speed and flowing speed are controlled, and the bubbles are eliminated in time; in the infusion process, an infusion tube is heated, and heating temperature is automatically controlled; through control of mechanical arms, automatic needle plugging and unplugging are achieved; the central receiver controls controllers of all units, so that control over all stages in the infusion process is achieved.
Owner:深圳文健医疗科技有限公司
Method for estimating open-circuit voltage of lithium-ion battery based on temperature input, and system
ActiveCN109884528AEasy to identifyLittle experimental dataElectrical testingLiquid dynamicsElectrical battery
The invention provides a method for estimating the open-circuit voltage of a lithium-ion battery based on temperature input, and a system. The method comprises the steps that step one, a to-be-determined open-circuit voltage estimating equation based on temperature input is deduced according to a gas-liquid dynamics model; step two, estimating equation parameters are identified according to experimental data and substituted into the to-be-determined open-circuit voltage estimating equation in the step one to obtain a complete open-circuit voltage estimating equation; and step three, the open-circuit voltage estimating method based on temperature input is designed according to the complete open-circuit voltage estimating equation. According to the method, a state equation of the gas-liquiddynamics model contains the influence of the temperature on the battery open-circuit voltage, and a temperature compensation coefficient and an empirical formula do not need to be introduced; experimental data required for parameter recognition are few, and model parameters are easy to identify; the sampling temperature at the previous time and the sampling temperature at the current time are input into the model, and more temperature information is reflected in the process of estimating the open-circuit voltage of the battery; and as for the equation for estimating the open-circuit voltage, the sampling error can be eliminated through iteration of the equation, an initial value is not needed, and the estimation accuracy is high.
Owner:DANYANG ZHONGHE ENVIRONMENTAL PROTECTION TECH CO LTD
Suspension base disc polishing device capable of being actively driven
InactiveCN102699809ALow costImprove surface roughnessLapping machinesWork carriersLiquid dynamicsGyration
The invention discloses a suspension base disc polishing device capable of being actively driven. The suspension base disc polishing device comprises an actively driven grinding transmission device, a suspension base disc, a correction ring and a grinding disc; the actively driven grinding transmission device is fixedly connected with the correction ring, and drives the correction ring to rotate; the correction ring is fixedly arranged on the grinding disc through a fixing piece and can rotate around a fixing center line; the suspension base disc is clamped in the correction ring; the suspension base disc polishing device is characterized in that a plurality of wedged grooves are arranged on the suspension base disc along the circumference direction; the wedged grooves are full of polishing liquid; the correction rings drive the suspension base disc to do gyration movement; the suspension base disc generates liquid dynamic pressure under the gyration movement, so that a work piece floats; and the work piece is in contact with a grinding material of the polishing liquid. The suspension base disc polishing device provided by the invention has the advantages of simple structure and relatively low cost; the surface roughness and the flatness of the work piece can be improved; the internal damage of the work piece, caused by polishing, can be reduced due to flexible contact between the work piece and each polishing particle; and the simple operation conditions are simple and the development prospect is wide.
Owner:ZHEJIANG UNIV OF TECH
Method for extracting and separating isoflavone from kudzu
InactiveCN1769278AReduce consumptionThe ecological environment has a huge effectOrganic chemistryDaidzinEcological environment
The invention discloses a process for extracting and separating isoflavones from kudzu vine, which comprises the steps of disintegrating kudzu vine to 60-150 meshes, loading into a liquid dynamic continuous flow upstream extraction device for alcohol extraction, combining the extract liquid and filtering, concentrating the filtrate to obtain total isoflavones extract, and separating the total isoflavones extract to obtain puerarin and soybean aglycone.
Owner:ZHEJIANG UNIV OF TECH
Vortex-type cleaning spraying device
ActiveCN108772218AImproved droplet performanceEasy to cleanLiquid spraying apparatusLiquid dynamicsSpray nozzle
The invention relates to a vortex-type cleaning spraying device. The vortex-type cleaning spraying device comprises a first cleaning agent tank (1), a first conical part, a first liquid outlet pipe, asecond cleaning agent tank (4), a second conical part, a second liquid outlet pipe, a selecting mixing valve (7), a flow adjusting valve and a spraying head (9). The first cleaning agent tank and thesecond cleaning agent tank are connected with the selecting mixing valve through the first liquid outlet pipe and the second liquid outlet pipe correspondingly; the first conical part is arranged atthe lower end of the first cleaning agent tank, and the second conical part is arranged at the lower end of the second cleaning agent tank; and the selecting mixing valve is connected with the flow adjusting valve through a hose, and the flow adjusting valve is connected with the spraying head (9). The vortex-type cleaning spraying device is characterized in that the spraying head is provided witha nozzle, and a vortex generating device is arranged at an outlet of the nozzle. The liquid dynamic property of a vortex medium can be further improved, rotating centrifugal force and local vortex force are achieved, jetting liquid drops are smaller and finer, accordingly, the liquid drop property and the cleaning force property of cleaning agents are both improved obviously, and the cleaning affect is further improved.
Owner:XINYI XIYI ADVANCED MATERIALS RES INST OF IND TECH CO LTD
High-temperature high-pressure foam liquid dynamic filtration evaluation system and method
ActiveCN103969160AMaintain fluid loss pressureHighly creativeSurface/boundary effectRock coreVapor–liquid separator
The invention relates to a high-temperature high-pressure foam liquid dynamic filtration evaluation system and method. A filtration system comprises a filtration chamber and a stirrer, wherein a paddle-type stirrer is mounted in the filtration chamber; bubbled liquid and gas are mixed fully and uniformly, and meanwhile, the foam liquid is driven to rotate and move relative to the surface of a rock core; the filtration chamber is connected with a gas supercharging device and a heating device respectively; the gas supercharging device can ensure the filtration pressure in the filtration chamber to keep stable; a gas-liquid separator is connected with the outlet end of a back-pressure valve; the gas-liquid separator is connected with a gas metering device and a liquid metering device respectively. The high-temperature high-pressure foam liquid dynamic filtration evaluation system and method provided by the invention have the advantages that the system is scientific and reasonable in design, the evaluation method is accurate, and higher creativity is achieved.
Owner:伊向艺 +2
Gas-liquid dynamic model-based accurate lithium-ion battery soc estimation method
ActiveUS20200158783A1Improve adaptabilityHigh complexityCells structural combinationSecondary cells testingTransient stateLiquid dynamics
A gas-liquid dynamic model-based accurate lithium-ion battery SOC estimation method, the gas-liquid dynamic model being a cylindrical closed container, a pipe and a valve that can be opened or closed being mounted at the top of the container, a liquid having a volume of Vw being held in the cylindrical container, and the remaining volume, V, being the volume of a gas having a pressure of P. According to the accurate SOC estimation method, a model, different from conventional RC equivalent circuit model and electrochemical model, is established from the perspective of a gas-liquid coexistence system. The method comprises the following steps: setting up an ideal gas state equation, a gas continuous motion equation, a gas-liquid dissolution equilibrium equation, etc. according to a gas-liquid coexistence system model; deriving steady state and transient state recursion formula of the gas-liquid coexistence system according to the model equations; performing intermittent charging and discharging stationary test on a certain model of battery; and fitting the expression of the relation between SOC and open circuit voltage, and recognizing parameter values of the gas-liquid coexistence system model, so as to achieve online estimation of a battery SOC value. The recursion formula is simple, has self-convergence characteristics, and can accurately describe the nonlinear characteristics of the battery.
Owner:JIANGSU UNIV
A traceable liquid sinusoidal pressure calibrating device
ActiveCN106153249AIncreased bandwidthHigh measurement accuracyFluid pressure measurementObservational errorLiquid dynamics
The invention relates to a traceable liquid sinusoidal pressure calibrating device based on an optical measurement method, and belongs to the field of optical metrology and measurement. The traceable liquid sinusoidal pressure calibrating device comprises a liquid sinusoidal pressure generator, a liquid dynamic pressure laser interference measurement system, a vibration isolation platform, a static pressure loading system and a data acquisition and analysis system. According to the invention, the frequency bandwidth of a sinusoidal pressure source is increased through cooperation between a piezoelectric transducer and a double-resonance tube cavity, and a frequency vacancy caused by the anti-resonance of a pressure transducer is filled; measurement of the refractive index change of water through a laser interferometric measuring system with a extremely high frequency band and in-situ static calibration enable dynamic pressure values to be reliably traced to static pressure; systems errors due to optical window vibration and the reflective index difference between water and air are eliminated through an optical window compensation cavity; a laser measurement optical head is fixedly connected with a secondary resonance tube and connected flexibly with a main resonance tube to eliminate the measurement errors introduced by the complex motion of the tubes driven by a transducer and improve the measurement accuracy.
Owner:BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
Method for estimating open-circuit voltage of battery based on gas-liquid dynamic model and device
ActiveCN110045286AThe estimation equation is simpleSmall amount of calculationElectrical testingComplex mathematical operationsBattery chargeTerminal voltage
Owner:承德神奥新能源科技有限公司
Floating berth loading and unloading system
InactiveCN101481002AIncrease effective working freeboardIncrease working freeboardWaterborne vesselsFloating buildingsWind waveMarine engineering
The invention relates to a floating anchoring loading and unloading system which comprises a fixed operation platform and a plurality of groups of floating and anchoring blocks, wherein the floating and anchoring blocks can be arranged on one side or both sides of the fixed operation platform. The invention has the main advantages that the mutual intense collision can not occur between floating bodies and between the floating body and a fixed building object under the actions of anchoring operation and wind wave flow combination so as to increase the safety and the reliability of the floating bodies, a liquid dynamic damping device is reasonably and additionally arranged to keep the relative stabilization of the floating bodies, increase the viability of the floating bodies in great storm and effectively ensure the anchoring safety of ships, and a special anchoring member is reasonably arranged to increase the effective operating freeboard of the floating and anchoring blocks, facilitates the anchoring operation of large ships and the anchoring stability and is convenient for personnel to take on and off the ship. The front edge of a dock is extended to a deep water area by using a fixing trestle to change a shallow water anchorage ground into a deep water port.
Owner:福建省交通科学技术研究所
Inkjet recording medium and ink set, and inkjet recording method
ActiveUS8883275B2Measurement apparatus componentsDuplicating/marking methodsChemical structureOrganic solvent
Owner:RICOH KK
Method and device for measuring axial force and lateral force of rod strings in three-dimensional well
ActiveCN103616117AMeet oil production engineering requirementsMeasurement of force componentsLiquid dynamicsEngineering
The invention provides a method and device for measuring axial force and lateral force of rod strings in a three-dimensional well. The method comprises the steps of obtaining track measure point data of the three-dimensional well, selecting one rod string between any two data points from the track measure point data to be used as a rod string unit, collecting the curvature, the length, the effective gravity, the inertia moment and the elasticity modulus of the rod string unit, collecting the first hole drift angle, the second hole drift angle, the first azimuth angle, the second azimuth angle, the well friction resistance coefficient, the stroke, the stroke frequency, the liquid dynamic viscosity in an oil pipe, the pump depth and the ratio between the inner diameter of the oil pipe and the diameter of the rod string of the track measure point corresponding to the rod string unit, determining the axial force of the second end, the axial force of the first end, and the lateral force of the unit length of the rod string unit, and determining the axial force and the lateral force of the rod strings in the three-dimensional well. The method can be used for designing and calculating the control measures of oil extraction eccentricity preventing of a sucker-rod pump, and also can be used for force analysis of the rod strings in the three-dimensional well.
Owner:PETROCHINA CO LTD
Inner blowout preventer of full-port drilling tool
ActiveCN101629480AImprove erosion resistanceNo erosionWell/borehole valve arrangementsSealing/packingSEMI-CIRCLEWell drilling
The invention relates to an inner blowout preventer of a full-port drilling tool. A valve body is internally provided with a passage and a lug boss; a left valve plate and a right valve plate are semi-circle conical; and the upper ends of the left valve plate and the right valve plate are respectively provided with outer flanges which are hung on the upper end surface of the lug boss and are in an open state so that the passage is in a through state. The invention has reasonable and compact structure and convenient use; and the conical valve plates can be fully opened in a positive cycle or static state to smoothen the passage of the drilling tool so as to reduce circulating pressure loss, basically have no erode to a valve core and carry out corresponding drilling operation by various instruments and tools with outside diameters smaller than a certain size. The inner blowout preventer of the full-port drilling tool can be automatically closed under the push of liquid dynamic power soas to take the blowout-preventing effect in case of blowouts in the drilling tool during the drilling operation, thereby not only extremely improving the processing rate during downhole accidents, but also improving the anti-erosion capability of the valve and further measuring the pressure of a vertical pipe.
Owner:中国石油集团西部钻探工程有限公司准东钻井公司
Machine tool liquid kinetic pressure center frame
InactiveCN101439469AAbsorb and dampen vibrationsNo wearRevolution surface grinding machinesAuxillary equipmentLiquid dynamicsEngineering
The invention relates to a liquid dynamic-pressing central frame of a machine tool, which solves the problems that the rigid central frame bearing of the machine tool has poor capability of absorbing the vibration of the workpiece, abrades the surface of the processed workpiece and has low bearing precision. The liquid dynamic-pressing central frame comprises an upper pressing cover and a central supporter which are correspondingly matched and fixed by screws. The liquid dynamic-pressing central frame is characterized in that the internal ring surface of the upper pressing cover is provided with an upper bearing; the lower concave semi-round surface of the central supporter is provided with more than one lower bearings; the working surface of the upper bearing and the lower bearing is Archimedean curved surface or eccentric arc surface; two side surfaces of the upper pressing cover in the axial direction are respectively provided with an upper-half end cover; two side surfaces of the lower-concave semi-round surface of the central supporter in the axial direction are respectively provided with a lower-semi end cover; the lower-half end cover at one side is provided with an oil inlet and the upper-half end cover is provided with an oil outlet. The liquid dynamic-pressing central frame is not rigidly contacted with the workpiece directly, generates no abrasion on the surface of the workpiece, can absorb and restrict the vibration of the supported bearing and has high bearing precision.
Owner:HEFEI UNIV OF TECH
Coal bed gas extraction hole drilling viscose liquid dynamic recyclable hole sealing device and coal bed gas extraction hole drilling viscose liquid dynamic recyclable hole sealing method
PendingCN109488250AAchieve infiltrationImprove extraction efficiencyGas removalSealing/packingAdhesiveLiquid dynamics
The invention relates to the technical field of coal and gas exploitation, and discloses a coal bed gas extraction hole drilling viscose liquid dynamic recyclable hole sealing device. The coal bed gasextraction hole drilling viscose liquid dynamic recyclable hole sealing device is used for blocking orifice sections of drilled holes in a coal bed, and is characterized in that second ends of 3 high-pressure hoses are connected with an orifice expansion capsule, a hole tail-end expansion capsule and a blocking section, a dynamic grouting system is connected with first ends of the 3 second high-pressure hoses in a switchable manner, and blocking adhesive can be injected into the orifice expansion capsule, the hole tail-end expansion capsule or the blocking section by the dynamic grouting system; the outer walls of the orifice expansion capsule and the hole tail-end expansion capsule are elastic walls, the orifice expansion capsule and the hole tail-end expansion capsule can be expanded after the blocking adhesive is injected, gaps between the inner walls of the drilled holes and the outer wall of a hole sealing pipe further can be blocked, and gaps between the inner walls of the drilled holes and the outer wall of the hole sealing pipe can be filled after the blocking adhesive is injected into the blocking section. The invention further provides a coal bed gas extraction hole drilling viscose liquid dynamic recyclable hole sealing method.
Owner:CCTEG SHENYANG RES INST
Large-sized precise direct-driving main shaft structure
InactiveCN102335755ARealize "zero transmission"Solution to short lifeMetal-working apparatusNumerical controlMotor drive
The invention relates to a large-sized precise direct-driving main shaft structure of a numerical control machine in the technical field of mechanical engineering, which comprises a main shaft structure formed by utilizing a liquid dynamic and static hydraulic technology and an electrical main shaft technology, and a precise direct-driving numerical control machine tool main shaft part which can realize large-sized liquid dynamic and static hydraulic bearings, wherein the precise direct-driving numerical control machine tool main shaft part is internally provided with a motor. The motor is arranged between the front dynamic and static hydraulic bearing and the rear dynamic and static hydraulic bearing; according to the direct-driving structure, the span of the bearings of the main shaft is increased; when the motor drives the main shaft to rotate, due to the external force action of a transmission link, the main shaft only bears the peripheral rotating torque without bearing the radial driving force, is more balanced due to no middle transmission impact during the high-speed operation of the main shaft, and the accuracy of a processed part is higher. The large-sized precise direct-driving main shaft structure has the advantages of high accuracy, large rigidity, long service life, good shock absorption property and vibration resistance, and excellent work stability and reliability, and can be used for the main shafts of precise processing machinery and the main shafts of high-speed and high-precise equipment.
Owner:宝鸡忠诚机床股份有限公司
Deep sea gas detection device based on gas partial pressure dynamic balance principle
PendingCN107884365ALow detection limitColor/spectral properties measurementsOcean bottomLiquid dynamics
The invention discloses a deep sea gas detection device based on gas partial pressure dynamic balance principle. The deep sea gas detection device comprises an upper end cover arranged at the front section of the device, wherein the lower end of the upper end cover is provided with a macromolecule gas-permeable membrane; a sintering block is arranged behind the macromolecule gas-permeable membrane; the sintering block is arranged on a water-gas separation base; the upper end cover is connected with the water-gas separation base through screws; the water-gas separation base is arranged on a cavity end cover through the screws; the cavity end cover is arranged on a cavity through screws; an electronic control cabin and a laser detection cavity are arranged in the cavity; a clamp sleeve connecting element is arranged at the end part of the water-gas separation base; the clamp sleeve connecting element is connected with an inlet and outlet opening of the laser detection cavity through a hose; a sealed inside gas path is formed. The long-period detection on deep sea in-situ methane solution gas can be realized by a membrane structure based gas-liquid dynamic balance method; by laser detection, the detection lower limit is lower; meanwhile, the electronic circuit part is positioned in the high-intensity cavity; high pressure at the deep sea bottom can be born.
Owner:INST OF DEEP SEA SCI & ENG CHINESE ACADEMY OF SCI
Water turbine with multiple vanes
ActiveCN103244335ASimple structureSimple design and manufactureFinal product manufactureHydro energy generationLiquid dynamicsControl system
The invention discloses a water turbine with multiple vanes. The water turbine comprises volutes, rotating wheels, a support cover, a bearing, a bottom ring and a drainage pipe. Nozzle rings are arranged in volute spiral runners and on the radial peripheries of the rotating wheels, orifices for jetting liquid flow to drive the rotating wheels are arranged on the nozzle rings at equal intervals, vanes are evenly arranged on the circumferences of the rotating wheels at equal intervals, and arc-shaped runners matched with the liquid flow jetted by the orifices are formed between the vanes. The runners of the water turbine with multiple vanes can convert not only kinetic energy of the liquid flow but also part of potential energy of the liquid flow; within a certain range of revolving speed, output power and flow are basically in a linear relationship, so that a complex adjustment and control system is not needed; and the structure of the water turbine is greatly simplified, the production process is simple and the cost is reduced. The water turbine is compact in structure, applicable to purposes such as small-size (miniature) hydroelectric generation and conversion from liquid dynamic energy to rotary mechanical energy in pipelines.
Owner:XIHUA UNIV
Electric main shaft based on dynamic-pressure sliding bearings
ActiveCN106425635AExtended service lifeHigh precisionCooling/ventillation arrangementDriving apparatusElectricityCarrying capacity
The invention discloses an electric main shaft based on dynamic-pressure sliding bearings. The electric main shaft comprises an electric main shaft shell, a main shaft, a motor and a lubricating and cooling system, wherein a front liquid dynamic-pressure sliding bearing and a back liquid dynamic-pressure sliding bearing are arranged at the front part and back end of the main shaft respectively; a rotor of the motor is fixedly connected with the main shaft and drives the main shaft to rotate; the lubricating and cooling system comprises a front nozzle, a back nozzle and a cooling jacket; the front nozzle communicates with the front liquid dynamic-pressure sliding bearing and penetrates through the electric main shaft shell; the back nozzle communicates with the back liquid dynamic-pressure sliding bearing and penetrates through electric main shaft shell; and the cooling jacket is provided with a cooling oil passage, and a cooling oil inlet and a cooling oil outlet which communicate with the cooling oil passage. The invention breaks through a traditional electric main shaft design concept based on a rolling bearing, and provides the electric main shaft based on the dynamic-pressure sliding bearings, and the electric main shaft based on the dynamic-pressure sliding bearings can bear a higher rotating speed, so that the service life can be effectively prolonged; and the electric main shaft based on the dynamic-pressure sliding bearings can bear a greater load, thereby having the characteristics of high carrying capacity, high precision, compact structure and long service life.
Owner:CHANGZHOU INST OF MECHATRONIC TECH
Grinding head device with a plurality of grinding wheel main shafting
ActiveCN101722471AEfficient grindingHigh precision grindingGrinding machine componentsGrinding/polishing safety devicesElectricityLiquid dynamics
The invention discloses a grinding head device with a plurality of grinding wheel main shafting, which comprises a grinding head box body, a dynamic and static pressure shafting, a dynamic pressure shafting, an electric main shafting, an oil supply device and a cooling device, wherein the dynamic and static pressure shafting, the dynamic pressure shafting and the electric main shafting are respectively arranged on the grinding head box body; a front end radical support bearing and a back end radical support bearing of the dynamic and static pressure shafting are liquid dynamic and static pressure bearings; a thrust bearing is a liquid dynamic and static pressure bearing; the liquid dynamic and static pressure bearing is respectively connected with the independent oil supply device; the overflow outlet of the oil supply device is connected with an oil pool of the dynamic and static pressure shafting; and a condensing pipe of the cooling device is arranged in the oil pool of the dynamic pressure shafting. With a forced circulation system of main shaft lubricating oil, the dynamic pressure shafting is arranged on the rotatable grind head; and with the dynamic and static pressure shafting, the dynamic pressure shafting and the electric main shafting which are arranged on the grinding head box body, various sand wheels for outer circles, end faces and inner holes for grinding parts such as rotatable bodies can be simultaneously installed to realize the high-speed high-efficiency grilling, the high-precision grinding, and the inner hole grinding of the grinding head.
Owner:BEIJING NO 2 MACHINE TOOL WORKS
Method for treating plant protein whey
The invention discloses a plant protein whey processing method, firstly ultra-filtering the concentrated plant protein whey by inorganic ceramic diaphragm, to hold back large-molecular alcohol-soluble protein, the alcohol-soluble protein able to return to the concentrated protein and also able to directly extract the alcohol-soluble protein with specific function; then making depressured concentration on the ultrafiltrate to reclaim the alcohol to obtain the concentrated liquid; and finally purifying the concentrated liquid by solvent and large-aperture resin or directly making acid / enzyme hydrolyzation, and during the hydrolyzing course, adding with acetic ester to carry out alternate / refluent liquid-liquid dynamic extraction, and making depressured concentration on the acetic ester layer to obtain isoflavone ligand with remarkable bioactivity, and refining the water phase to obtain higer-purity oligose.
Owner:SANHE HOPEFULL GRAIN & OIL GROUP
Dynamic balance device of roller washing machine, inner cylinder component of roller washing machine and roller washing machine
PendingCN107829260AImprove running stabilityGood vibration dampingOther washing machinesTextiles and paperLiquid dynamicsDynamic balance
The invention provides a dynamic balance device of a roller washing machine, an inner cylinder component of the roller washing machine and the roller washing machine. The dynamic balance device can beinstalled on an inner cylinder of the roller washing machine, liquid dynamic balance can be directly conducted on a rotary vibration source, namely an inner cylinder rotor, through a radial balance chamber structure, an axial balance chamber structure and balance liquid capable of freely flowing, wherein the radial balance chamber structure and the axial balance chamber structure are mutually communicated and filled with the balance liquid. The vibration reduction effect is more obvious, the weight is lower, and the dynamic balance device plays an important role in vibration reduction designand lightweight design of the washing machine.
Owner:GREE ELECTRIC APPLIANCES INC
Method and system for estimating open-circuit voltage on line based on gas-liquid dynamic battery model
ActiveCN111077452AImprove adaptabilitySimple calculationElectrical testingVehicular energy storageTerminal voltageLiquid dynamics
The invention provides a method and a system for estimating an open-circuit voltage on line based on a gas-liquid dynamics battery model. The method comprises the following steps: estimating a first open-circuit voltage of a battery through a gas-liquid dynamics open-circuit voltage battery model; looking up an open-circuit voltage-capacity table according to the first open-circuit voltage to obtain a first capacity; taking the first capacity as an initial value, and obtaining a second capacity by using a micro-step ampere-hour integral method; looking up a capacity-open-circuit voltage tableaccording to the second capacity to obtain a second open-circuit voltage; estimating a end voltage of the battery through a gas-liquid dynamics end voltage battery model; calculating a coefficient matrix and a covariance matrix of an extended Kalman filtering algorithm of the gas-liquid dynamics open-circuit voltage battery model; and updating the coefficient matrix and the covariance matrix of the extended Kalman filtering algorithm of the gas-liquid dynamics open-circuit voltage battery model, and then circulating to finish online identification of model parameters and online estimation of the open-circuit voltage of the battery. According to the method, model parameters and initial values do not need to be identified or recognized before the open-circuit voltage of the battery is estimated.
Owner:JIANGSU UNIV
Gear transmission structure
The invention provides a gear transmission structure comprising a rotating shaft and a gear. The rotating shaft is provided with an oil inlet channel and an oil communication groove. The oil inlet channel is arranged inside the rotating shaft. The oil communication groove is arranged on the outer wall of the rotating shaft and communicates with the oil inlet channel. Oil communication holes are formed inside the gear. The first end of each oil communication hole is arranged on a gear tooth of the gear or the surface where a root circle of the gear is located. The second end of each oil communication hole is arranged on the inner wall of the center hole. The gear is arranged on the rotating shaft in a sleeving manner, and the oil communication hole communicates with the oil communication groove. According to the gear transmission structure, lubricating oil is conveyed to the engagement position of the gear, so that the gear forms liquid dynamic pressure oil film at the engagement position, and the lubricating effect is guaranteed; it is guaranteed that the lubricating oil amount is uniform, the lubricating effect is uniform, and the lubricating oil is saved.
Owner:GUANGDONG POLYTECHNIC NORMAL UNIV
Method for simulating seismic oscillation of sedimentary basin in 3D saturated space
InactiveCN105869208ARealize scattering simulationEfficient and accurate solutionImage generation3D modellingCircular discTime domain
The invention provides a method for simulating seismic oscillation of a sedimentary basin in a 3D saturated space. The method, based on the indirect boundary element method, derives a full-space saturated inclined plane disc load Green's function, and addresses the problem of solving boundary singularity. The method comprises the following steps: simulating solid-liquid dynamic coupling effects, pore pressure and flow changing rules for a saturated two-phase model; establishing a 3D saturated area model, based on a Biot saturated multi-media theory, deriving a saturated Green's function, based on boundary conditions, establishing an equation for solution, finally conducting frequency-time domain seismic response simulation analysis so as to predict future seismic oscillation. According to the invention, the method provides an efficient algorithm and a practical application for solving oscillation of saturated inhomogeneous medium engineering, provides theoretical basis for seismic regionalization and structure anti-seismic fortification in coastal complex saturated areas, and brings explicit economic benefits for simulating actual complex engineering.
Owner:TIANJIN CHENGJIAN UNIV +1
Numerical control ultra-precision spindle system of head stock
The invention relates to an ultra-precision spindle system which adopts a liquid dynamic and static press technology, the system comprises a liquid dynamic and static press semispherical bearing, a liquid dynamic and static press column-anti-thrust unloading bearing, an automatic workpiece clamping device and a flexible articulator between the spindle and an unloading device, and the system is characterized in that: a half convex ball which is fixed with the spindle rotates in oil liquid with pressure relatively to a half concave ball which is fixed in a box hole of the headstock of a lathe; a belt wheel is driven by a stepless speed regulating motor, and the weight and the radial tensile force of the belt wheel are borne by the liquid dynamic and static press column-anti-thrust unloading bearing; and the workpiece is clamped by a cylinder pull-rod spring chuck or a hydraulic (pneumatic) three-jaw chuck in the liquid dynamic and static press column unloading bearing, and the workpiece is driven to rotate by the flexible articulator. The spindle system consisting of the special structures has very small spindle rotation error and high shafting rigidity.
Owner:黎永明 +2
Viscometer
PendingCN107643237AImprove adaptabilityLess susceptible to interferenceFlow propertiesLiquid dynamicsControl theory
The invention provides a viscometer. The viscometer comprises a servo motor and a viscosity sensor, wherein the servo motor comprises a servo motor body, a motor shaft, a motor rotor, a permanent magnet and a coder, wherein a first end of the motor shaft is arranged inside the servo motor body; the motor rotor, the permanent magnet, the coder are fixedly connected with the first end of the motor shaft; a second end of the motor shaft extends outside the servo motor body, and is directly and fixedly connected with the viscosity sensor; the rotation of viscosity sensor is lagged under the actionof viscosity torque generated in liquid to be tested; the coder is used for reading a lagging angle fed back by the motor shaft, and liquid dynamic viscosity of the liquid to be tested is calculatedaccording to the lagging angle. The viscometer is simple in structure, the rotation of the motor shaft and the viscosity sensor device is insusceptible to the interference of external environment, sothat the adaptivity of the viscometer in a plurality of industrial flows is improved, and the accuracy of the liquid hydraulic viscosity measured by the viscometer is increased.
Owner:奇思智控(天津)商贸有限公司
Extracting tank with heat recycling and dynamic circular extracting function and medicine liquid extracting method
InactiveCN103736292AHeating evenlyConsistent concentrationSolid solvent extractionLiquid dynamicsEngineering
The invention belongs to the technical field of a medicine extracting device, in particular to an extracting tank with a heat recycling and dynamic circular extracting function and a medicine liquid extracting method, which aim at solving the technical problem of the prior art such as the unreasonability in design. The extracting tank comprises an extracting tank with a cavity, wherein the top of the extracting tank is provided with a material inlet and a liquid inlet mechanism, which are communicated with the cavity, the bottom of the extracting tank is provided with an extracted liquid outlet pipe, the top of the extracting tank is also provided with an extracted liquid inlet which is communicated with the cavity, the bottom of the extracting tank is provided with an extracted liquid outlet which is communicated with the cavity, an extracted liquid dynamic circulating mechanism which is connected with the liquid inlet mechanism is arranged between the extracted liquid inlet and the extracted liquid outlet, the extracted liquid dynamic circulating mechanism is provided with a heating device for heating the material liquid or the extracted liquid, and the extracting tank is provided with a heat energy recycling extracting mechanism. The invention relates to a medicine liquid extracting method. The method comprises the steps of A, immersing; B, vapor heating; and C, dynamically and circularly extracting. The extracting tank and the extracting method have the advantages of energy conservation and low cost.
Owner:XIANGSHAN MEDICAL PRECISION INSTR
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