140 results about "Liquid dynamics" patented technology

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:

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention discloses a process for extracting and separating isoflavones from kudzu slag, which comprises the steps of disintegrating kudzu slag 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.