75 results about "Fluid interface" patented technology

The invention discloses a capillary pressure and contact angle synchronous characterization method and device of a microfluidic fluid interface, and relates to the field of interface analysis and multiphase seepage in pore media, and the method comprises the following steps: based on a pre-configured pore, particle and fluid binary image, distinguishing and extracting a fluid-particle contact interface contour and an attack / defense fluid interface contour; fitting and determining the curvature radius of each fluid interface contour through a watershed region division algorithm and reordering smoothing of Fourier descriptors; generating a multi-level size pore space based on the pore binary image, and obtaining a pore overlook radius; calculating a necking angle in combination with the curvature radius and the multi-stage size pore space to obtain an apparent contact angle and an intrinsic contact angle; and calculating the capillary pressure of the attack / defense fluid interface by combining the curvature radius, the pore overlook radius, the chip depth and the interfacial tension. According to the invention, high-precision technical support is provided for micro-fluidic multiphase seepage research.

A method of determining at least one fluid interface in at least one annulus surrounding a tubing of a wellbore, the method comprising: providing a buoyancy module, floating the buoyancy module at the at least one fluid interface; generating an acoustic signal with an acoustic signal generator connected to the buoyancy module; detecting the acoustic signal with an optical signal carried within an optical fibre arranged in the longitudinal direction of the tubing.

The invention belongs to the field of porous medium multiphase flow research, and particularly relates to a three-dimensional micro-fluidic multiphase flow chip experimental platform based on a vibration condition and an experimental method of the three-dimensional micro-fluidic multiphase flow chip experimental platform based on the vibration condition. The device can simulate the micromechanism of oil-water-gas three-phase flow, and the micro-fluidic chip is arranged on the three-dimensional vibration table, so that the dynamic change of a multi-phase fluid interface is observed in real time through the high-speed camera under different vibration frequencies and amplitude conditions, and the influence of the dynamic change on the flow characteristics is analyzed. Through experiments, the influence of vibration conditions on residual oil mobilization can be discussed, and a microscopic basis is provided for optimizing a vibration-assisted oil extraction technology. A novel research tool and an experiment platform are provided for improving the recovery efficiency and developing complex reservoirs, and the development of the vibration oil extraction technology is promoted.

The present invention relates to the technical field of heating devices. Disclosed are a heating device and a manufacturing method therefor, and a household appliance. The heating device specifically comprises a heating accessory, water nozzles, and second supports. The heating accessory is provided with at least one fluid channel and fluid interfaces arranged at two ends of the fluid channel; the water nozzles are detachably connected to the respective fluid interfaces; the second supports are connected to the side of the heating accessory facing the water nozzles, a second through hole is formed in each second support, and one end of the corresponding water nozzle passes through and extends out of the second through hole, wherein the water nozzle can be moved into or out of the second through hole and can be detachably mounted to the fluid interface. The water nozzle can directly extend into the through hole and be mounted to the fluid interface, greatly simplifying the mounting steps of the water nozzle. In addition, the water nozzle can also be directly removed via the second through hole without removing the corresponding second support, thereby facilitating maintenance or replacement of the water nozzle.

The application discloses a charging plug, a charging gun and a joint assembly, and relates to the technical field of ground maintenance. The fluid channel defined by the charging plug is used for connecting a cooling source. The fluid flow cavities are respectively connected with the fluid channel and the fluid interface, so that the cooling circuit of external equipment such as an electric vehicle can be connected with the fluid interface on the charging plug conveniently and quickly, and the heat management capability is improved. In addition, the charging plug can switch the in-out liquid direction through the first and second fluid flow cavities, so that the internal temperature difference of the battery system of the corresponding external equipment can be reduced through the timing switching. Alternatively, the heat exchange fluid in the loop connection cavity can independently perform heat management through the cooling circuit of the external equipment, which is beneficial to improving the accuracy of heat management on the external equipment, improving the temperature uniformity of each position of the external equipment, and enabling the heat exchange fluid in the charging cooling cavity to independently dissipate heat for the to-be-cooled charging terminal or the charging wire harness.

The utility model provides an interface connecting joint, which is applied between a compressor and a pipeline system and is characterized in that a fixing piece is provided with a first fluid channel, and the first end of the first fluid channel is communicated with the pipeline system; the adjusting part is provided with a second fluid channel, offset exists between the axis of the first end face of the second fluid channel and the axis of the second end face of the second fluid channel, the first end of the second fluid channel communicates with a fluid connector of the compressor, and the second end of the second fluid channel communicates with the second end of the first fluid channel. The adjusting device is used for adjusting pipeline connection deviation between the compressor and the pipeline system; the adjusting piece is fixedly connected with a shell of the compressor through the fixing piece, and a sealing structure is arranged between the fixing piece and the adjusting piece to achieve sealing of the connector connecting joint. According to the utility model, the offset design is introduced into the adjusting piece, so that the installation positioning deviation caused by a hard pipe connection mode between the compressor and the pipeline system is effectively solved, and the alignment connection of the compressor and the pipeline system interface is realized.

Disclosed is an embodiment of an apparatus comprising a utility section adapted to be positioned in a server chassis and adapted to couple with an electronics section in the server chassis. The utility section comprises a power distribution panel, a fluid handling module, a fan module electrically coupled with the power distribution panel, or both the fluid handling module and the fan module. An external power interface is adapted to electrically couple the power distribution panel with a rack power supply, and an internal power interface is adapted to electrically couple the power distribution panel with one or more servers in the electronics section within the chassis. An external fluid interface is adapted to fluidly couple the fluid handling module with a rack fluid circulation loop, and an internal fluid interface is adapted to fluidly couple the fluid handling module with a server fluid inlet and a server fluid outlet of each of the one or more electronics sections.

This invention discloses a simulation method, apparatus, medium, and device for flip chip underfill, relating to the field of flip chip underfill simulation technology. The invention simulates the flip chip underfill process within a computational domain divided into two meshes in a flow plane perpendicular to the depth direction using a color gradient lattice Boltzmann model. A color function clearly distinguishes between the wetting phase (filler adhesive) and the non-wetting phase (air) to dynamically track the two-phase interface. When simulating the flow field changes during the self-absorption process of flip chip underfill, the average curvature of the interface in the depth direction and the average frictional force of the upper and lower solid walls of the flip chip are introduced to determine the force applied at the two-phase fluid interface, thus reflecting three-dimensional physical effects. While maintaining near-two-dimensional computational costs, this invention significantly improves the accuracy of flip chip underfill simulation and can quickly predict the entire flip chip underfill process at a lower cost.

A distributor assembly (14), particularly designed for a separation unit (12) of a modular process equipment unit (10), includes a fluid distribution device with a plurality of fluid interfaces (28, 30), wherein the fluid distribution device is capable of selectively establishing and blocking flow connections between the fluid interfaces (28, 30). The distributor assembly also includes an interface element (42) and a fastening element (58). The interface element (42) is mountable on one of the fluid interfaces (30), and the distributor assembly (14) has an associated mounting groove (60) at the fluid interface (30). The mounting groove (60) is adapted to the shape of the fastening element (58) such that the fastening element (58) can be introduced into the mounting groove (60) up to a defined fastening position in which the fastening element (58) engages with and secures the interface element (42).

The invention discloses a fuel gear pump fluid-solid coupling method based on RBF reconstruction. The method comprises the following steps: 1, establishing a fuel gear pump model, dividing grids, and carrying out internal flow field simulation to obtain a pressure field cloud picture; step 2, applying a test example to carry out RBF interpolation reconstruction precision verification, selecting a proper primary function by comparing fluid-solid interface data transmission relative errors of the example, and adopting the selected primary function to carry out subsequent gear pump fluid-solid interface flow field reconstruction; 3, gear finite element model preprocessing is carried out, fluid interface pressure data reconstruction is carried out, and then fluid interface data are transmitted to a gear interface; and 4, accurately transmitting the pressure data of the fluid interface to the solid interface through the steps, carrying out fluid-solid coupling solution to obtain a structural stress-strain field cloud picture, and analyzing the contact meshing characteristics of the gear. According to the invention, high-precision parameter transmission of a fluid-solid interface is realized, and coupling analysis of a gear pump pressure field and a gear stress-strain field is carried out.

The pressure fluid storage device for heat mass energy storage comprises storage wells, the storage wells comprise the first storage well and the second storage well which are communicated with each other, a fluid connector is formed in the side wall of the second storage well, and in the plane perpendicular to the center line of the storage wells, the projection of the first storage well covers the projection of the second storage well; the first gravity column is arranged in the first storage well; the second gravity column is arranged in the second storage well; the sealing film is arranged on the second storage well and located between the second gravity column and the second storage well, a sealed space is formed between the sealing film and the second storage well, and the fluid connector is in fluid communication with the sealed space so as to fill or discharge pressure fluid into the sealed space. When the pressure fluid is discharged, the second gravity column is suitable for being switched from the separation position to the embedded position relative to the first gravity column, and when the pressure fluid is discharged, the second gravity column is suitable for being switched from the embedded position to the separation position relative to the first gravity column. The storage device can realize engineering-magnitude fluid flexible sealing and constant-pressure storage.

A fluid interface is disclosed including a fluid controller mounted onto a host structure. The fluid controller includes a manifold with a fluid outlet port and a fluid inlet port. The fluid controller includes fluid sensors operatively configured to measure flow characteristics of one or more fluids transferred between the fluid inlet port and the fluid outlet port, wherein the fluid inlet port is coupled to at least one fluid source. The fluid interface includes a fluid connector mounted onto the host structure. The fluid connector includes an actuator mounted onto the exterior side of the host structure, a valve coupled to an actuator rod of the actuator, and an elastically deforming tubing comprising a first end and a second end, wherein the first end is operatively connected to the valve and the second end is operatively connected to the fluid outlet port.

Embodiments herein relate to calibration of a personal breath tester device. In an embodiment, a calibration system is included having a calibration station having a calibration standard fluid source and a fluid interface. The calibration station can include a first calibration station port and a second calibration station port. The calibration system can include a substance tester device having a first tester port, a second tester port, and a detection element. The substance tester device is configured to be docked to the calibration station such that the first calibration station port is in communication with the first tester port and the second calibration station port is in communication with the second tester port. The calibration station can charge the power supply of the substance tester device and upon receiving a calibration initiation signal, provide a portion of the calibration fluid to the detection element. Other embodiments are also included herein.

The application relates to the field of medical devices, and relates to a stimulating coil replacement device and method and a transcranial magnetic therapy instrument. The device comprises a coil fixing seat, the inside of the coil fixing seat is provided with a mounting portion and an interface assembly for connecting external pipelines, the surface of the coil fixing seat is provided with an operation window corresponding to the interface assembly; the coil carrier is provided with a connecting portion matched with the mounting portion and a connector assembly detachably connected to the interface assembly; a locking piece is detachably connected to the coil fixing seat to lock the connecting portion; a sealing cover plate is detachably connected to the operation window, when the sealing cover plate is in a connected state, the connector assembly is shielded by the sealing cover plate; when the sealing cover plate is detached, the connector assembly is exposed for plugging and unplugging operation. The scheme simplifies the coil replacement process, avoids the use of special tools, effectively protects the key high-voltage and fluid interface during non-operation period, and reduces the risk of interface damage and liquid leakage.

The invention discloses a liquid separation device for automatic library construction, which comprises a patch board, the upper surface of which is provided with a plurality of fluid interfaces communicated with an external injection pump or an air source through conduits; the temperature control structure comprises a low-temperature control area and a normal-temperature control area which are arranged in a mutual heat insulation manner The interface board comprises a laminated micro-fluidic structure of an upper-layer plate, a middle film and a lower-layer plate, the upper-layer plate is provided with a reagent injection port and an air valve interface, the middle film forms a micro-valve which can be controlled to be opened and closed under the action of air pressure, the lower-layer plate forms at least one metering micro-channel and a transmission micro-channel, and a quantitative volume of reagent is injected into the digital micro-fluidic chip through a liquid injection connector at the downstream. The device is compact in structure, reliable in sealing, high in modularization degree and suitable for gene sequencing library construction and related microfluidic automation application.

A combined plumb and level measurement apparatus can comprise a housing defining a sealed chamber and a viewing window with at least one transparent face. A fluid interface between a fluid occupying a first volume within the sealed chamber and a headspace above the fluid provides a level reference across the viewing window. A pendulum within the sealed chamber extends through the fluid and is pivotably supported about a pivot axis proximate a geometric center of the sealed chamber, where the pendulum aligns with a direction of gravity independently of an orientation of the housing to provide a plumb reference visible through the viewing window concurrent with the level reference of the fluid interface. Exterior indicia along a housing circumference include at least a first pair of opposed level reference marks and a second pair of opposed plumb reference marks angularly offset from the opposed level reference marks.

The invention relates to a valve arrangement (1) for supplying compressed air consumers, comprising a base plate (4) on which a plurality of valve sockets (6) are formed, each of which has a fluid interface (7) and a communication interface (8), wherein the communication interfaces (8) are connected to a controller (3) which is designed to provide electrical signals to the communication interfaces (7) and to receive electrical signals from the communication interfaces (7), and comprising at least one valve unit (51) which is arranged on one of the valve sockets (6) and is connected to the fluid interface (7) and the communication interface (8).According to the invention, the controller (3) is designed to read out a memory module (71) of the respective valve unit (51) and, depending on a result of the readout process, to block or release program modules (36, 37, 38) stored in a control memory (33) of the controller (3) and to use released program modules (36, 37, 38) for controlling the respective valve unit (51).

The invention relates to an underground holdup measuring method and an underground fluid interface and geometric distribution determining method, and belongs to the technical field of oil-gas exploration. According to the underground holdup measuring method, a plurality of tuning forks distributed on a flow cross section are utilized, oil-water judgment is achieved by comparing the fluid density collected by the tuning forks with a preset oil-water density distinguishing threshold value, and characterization of the underground fluid holdup is achieved by utilizing the time proportion of oil / water collected by the tuning forks. The method has the advantages of good universality, high measurement efficiency and high resolution. According to the method for determining the underground fluid interface, oil-water judgment is achieved through a plurality of tuning forks distributed on a flowing section, an oil-water demarcation point is recognized according to the oil-water alternate switching phenomenon, and the oil-water interface of the horizontal well is determined. According to the underground fluid geometric distribution determination method, oil-water judgment is achieved through a plurality of tuning forks distributed on a flowing cross section, and a fluid geometric distribution diagram is drawn by combining local oil holdup calculation and tuning fork position distribution.

The application relates to the technical field of polymer forming and processing equipment, and discloses a multi-material composite part embedding and glue sealing integrated injection molding equipment, which comprises a fixed mold assembly and a movable mold assembly. An inner layer positioning core for bearing an embedded part is arranged in the movable mold assembly, and a middle layer logic forming sleeve is arranged outside the inner layer positioning core. The middle layer logic forming sleeve is driven by a driving unit to move along the outer wall of the inner layer positioning core. A fluid control circuit and an adaptive support mechanism connected with the fluid control circuit are arranged in the fixed mold assembly. A fluid interface is arranged on the matching surface of the fixed mold assembly and the movable mold assembly. The shearing flow channel logic hole in the sidewall of the middle layer logic forming sleeve serves as a physical switch, directly converts the cavity reconstruction action of the movable mold into a hydraulic trigger signal of the support pin of the fixed mold, and enables the mold system to maintain high operation robustness under harsh working conditions such as high temperature, high pressure and strong electromagnetic interference.

The invention provides an intelligent automobile pump cooperative control method and system based on digital twinning, and the method comprises the steps: firstly recognizing the rheological characteristic difference of new and old concrete through a hopper sensor array, and generating a digital model of a heterogeneous fluid interface; self-excited vibration generated when the pumping system works is used as a detection source, and the spatial position of an interface in a conveying pipeline is positioned in real time by analyzing a vibration echo signal. A dynamic evolution model is constructed based on the position, the future motion deformation trend of the interface is predicted, and the time when the interface arrives at the key position is accurately calculated and the pressure impact is estimated. And a set of nonlinear cooperative control curve containing various execution parameters is generated in advance according to a prediction result, and the pumping system is driven to operate according to the curve in a predicted time window. According to the invention, active avoidance and cooperative control of the pumping risk are realized, and the construction safety is improved.

A pharmaceutical preparation system is provided defining first and second axes which intersect each other. The system includes: at least one platform comprising at least one container-receiving module configured to receive a first container; a first mechanism operably connected to the platform for linearly displacing the platform along the first axis; a manipulator configured for holding and manipulating a second container; a second mechanism operably connected to the manipulator for linearly displacing the manipulator along the second axis; and a controller configured for: a. instructing the second mechanism to linearly displace the manipulator; b. instructing the first mechanism to linearly displace the platform; and c. synchronizing actuation of the first and second mechanisms to enable a fluid interface between the first container received at the at least one container-receiving module and the second container held by the manipulator.

The invention discloses an integrated manufacturing method of a high-precision micro-fluidic chip, and relates to the technical field of chip manufacturing. The method comprises the following steps: providing a precision mold, wherein a cavity of the mold defines a micro-channel network and a functional chamber of the micro-fluidic chip; an independent and removable sacrificial mandrel is accurately assembled and fixed at a predetermined position of the mold before mold closing, and the sacrificial mandrel is used for directly defining the complete three-dimensional geometry of the fluid interface in the forming process. The sacrificial core shaft and the chip main body are integrally formed, so that the defects of interface collapse of a traditional bonding process and burrs of secondary machining are fundamentally eliminated, and high-precision and leakage-free manufacturing of a fluid interface is realized. According to the method, the reliability and the consistency of the chip are greatly improved, synchronous manufacturing of a complex three-dimensional flow channel and a high-quality interface is realized through an optional'dual sacrifice technology ', and the function integration capability of the micro-fluidic chip is remarkably enhanced.

The invention relates to an intermediate plate (100) for a distribution unit (200), wherein the distribution unit (200) has a first and a second housing part (210; 220), wherein the intermediate plate (100) can be arranged between the first and second housing part (210; 220) and is designed to at least partially seal the first and second housing part (210; 220), wherein the intermediate plate (100) has at least one fluid interface (110) for a fluidic exchange between the first and second housing part (210; 220), and wherein the intermediate plate (100) is designed to be at least partially thermally insulating.

A valve assembly for supplying compressed air consumers, with a base plate on which several valve slots are formed, each of which has a fluid interface and a communication interface and with at least one valve unit which is arranged on one of the valve slots and is connected to the fluid interface and the communication interface. The communication interfaces are connected to a controller to provide electrical signals to the communication interfaces and to receive electrical signals from the communication interfaces. The control unit is designed to read a memory module of the respective valve unit and, depending on a result of the read-out process, to block or enable program modules that are stored in a control memory of the control unit and to use released program modules for controlling the respective valve unit.

The invention relates to a valve module (100) for a valve unit (200) and for adjusting fluid flows, comprising: a module housing (110) with a circular receiving opening extending along a valve axis (VA) for receiving a circular channel disk (120), wherein the module housing (110) has a plurality of fluid interfaces (111; 112) for fluidic communication with the receiving opening; the circular channel disk (120) with a predetermined number of channels (121), wherein the channel disk (120) can be arranged in the receiving opening and is rotatable about the valve axis (VA) such that, based on a position of the channel disk (121), the plurality of fluid interfaces (111;112) are fluidically connectable by means of the channels (121), wherein the channel disk (120) extends from a front surface to a rear surface along the valve axis (VA) and the channel disk (120) has a coupling unit (130) at least on one of the two front and rear surfaces, wherein a rotation can be transmitted to the channel disk (120) by means of the coupling unit (130).

The invention relates to a valve assembly, a valve unit, and a method for controlling a valve unit in a valve assembly for supplying a compressed air consumer, comprising a base plate on which a plurality of valve slots are formed, each valve slot having a fluid interface and a communication interface, the communication interface being connected to a controller, the controller is designed to provide electrical signals to the communication interface and to receive electrical signals from the communication interface; and at least one valve unit, the valve unit being arranged at one of the valve slots, and the valve unit being connected with the fluid interface and the communication interface. According to the invention, the control unit is designed to read the memory module of the respective valve unit and to lock or unlock the program module stored in the control memory of the control unit depending on the result of the reading process, and to control the respective valve unit using the unlocked program module.

This invention relates to the technical field of fluid interface performance and discloses a dynamic contact angle measurement method based on the Boltzmann phase field model. The method uses a lattice Boltzmann phase field model to simulate the collision process between a dispersed phase fluid in a continuous phase fluid and an obstacle. Within each time step, the current sequence parameters corresponding to each lattice in the phase field model are calculated to determine the region of the dispersed phase fluid within the model, thereby determining the dispersion boundary. A trapezoidal structure is then used to divide the dispersion boundary containing the forward and backward contact angles of the dispersed phase fluid. Finally, the angles between the tangents corresponding to the obstacle boundary and the tangents corresponding to the forward and backward contact angles of the dispersion boundary are calculated, which represent the contact angle between the dispersed phase fluid and the obstacle. This allows for real-time detection of changes in the contact angle of the dispersed phase fluid during the collision process.

Methods for locating fluid interfaces in a cased wellbore include generating vibrations in the casing, thereby forming oscillations in the wellbore fluids and the casing. The oscillations are detected by a vibration detector. The oscillations are recorded by a data acquisition system. Mathematical processing of the oscillations by cepstrum analysis is performed to determine the depths of interfaces between fluids in the annulus. The methods may also be employed to determine the time at which a cement slurry begins to set and harden. The methods may be performed in real time.

The utility model discloses an expansion connection type air floating spindle which comprises a shell, the shell is provided with a fluid connector, and the fluid connector comprises a water inlet, a water outlet, an air inlet and an air outlet; the expansion connection type air floating spindle further comprises an expansion connector, one end of the expansion connector is connected with the fluid connector in a sealed mode, and the other end of the expansion connector is connected with a fluid pipeline. The fluid pipeline comprises a water inlet pipe communicated with the water inlet, a water outlet pipe communicated with the water outlet, an air inlet pipe communicated with the air inlet and an air outlet pipe communicated with the air outlet; the expansion joint extrudes the first sealing ring between the fluid interface and the fluid pipeline after the expansion body deforms through mutual extrusion of the expansion body and the circular truncated cone cylinder. According to the utility model, the expansion body and the circular truncated cone cylinder are extruded, so that the expansion body deforms, and the connection reliability and stability of a fluid pipeline and a fluid interface are improved by means of the principle of an expansion bolt.

The utility model discloses a charging plug, a charging gun and a charging assembly, and relates to the technical field of charging, the first surface of the plug body of the charging plug is provided with at least two charging terminals and at least two fluid interfaces, and the plug body also defines a fluid channel and a fluid flowing cavity. The fluid flowing cavity communicates with the fluid channel and the fluid connector and is used for allowing heat exchange fluid to flow through, and the fluid connector is used for being communicated with a cooling loop of external equipment. In the first direction, the axis of at least one fluid interface is located between the axes of the two charging terminals, and the first direction is located on the first surface, so that the charging terminals with relatively small cross-sectional areas can more fully utilize the space on the outer side of the arrangement direction of the fluid interfaces with relatively large cross-sectional areas; the arrangement between the charging terminal integrated on the charging plug and the fluid interface is more compact, and the overall occupied volume of the interface for connecting the plug body and the external equipment is reduced.