154 results about "Fluid coupling" patented technology

A fluid coupling may include a receiving element, a securing element, a retaining element and a plug-in element. The securing element may be displaceable between a release position and a locking position. The securing element being may be engaged with the retaining element in the release position of the securing element. The plug-in element may allow the securing element to be displaced. The fluid coupling may include a spring element which exerts a spring force on the securing element so that the securing element is preloaded in the direction of the locking position so that, when the plug-in element is inserted into the receiving space of the receiving element, the securing element is displaced out of the release position into the locking position due to the spring force of the spring element.

The invention discloses a precise liquid feeding structure control method applied to a single-phase immersion liquid cooling data center box body, which comprises the following steps: step 1, data acquisition and modeling: acquiring parameters by using a sensor, and simulating a cooling liquid flow path and temperature field distribution through thermal analysis; 2, simulation analysis and problem positioning are carried out, the flow velocity, flow distribution and temperature field of cooling liquid under different loads are simulated, and an unsmooth flow area, a hot spot area and a high-energy-consumption node are positioned; 3, hardware deployment and debugging: adjusting the installation position of a mainboard water pump to optimize the initial axial direction of a cooling liquid, simulating different server loads, and comparing test data with a simulation result to perform fine tuning optimization; 4, dynamically controlling the flow, executing multi-mode control logic based on the temperature parameters, and dynamically adjusting the rotating speed of a main board water pump and the rotating speed of a circulating pump; cooling liquid is forced to flow through the mainboard water pump, flow distribution is optimized in combination with the heat-flow coupling model, and forced flowing of the cooling liquid is achieved.

The invention discloses a surface texturing bearing lean oil state lubricating oil distribution prediction method and system, and relates to the field of cylindrical roller bearing surface texturing, and the method comprises the steps: extracting a fluid domain from 1 / n of a simplified geometric model; the fluid domain is subjected to unstructured grid division and then imported into FLUENT software, a lubricating oil density cloud picture and a speed vector diagram in a lean oil state are obtained through the software, and then the oil flow density and the speed distribution condition of an inner raceway contact area of the cylindrical roller bearing containing the surface texture are obtained; and utilizing finite element software to perform fluid-solid coupling on the fluid domain subjected to unstructured mesh division and 1 / n of the simplified geometric model to obtain the oil film thickness of the surface texture, and further obtaining the oil film thickness distribution condition of the surface texture. According to the method, the oil flow density distribution and speed distribution condition of the inner raceway contact area of the cylindrical roller bearing containing the surface texture can be predicted, and the oil film thickness distribution condition of the surface texture can be predicted.

The application discloses a water pump group fault early warning method and system based on an Internet of Things sensor, belongs to the technical field of water pump fault early warning, and specifically comprises the following steps: collecting sensing data of all water pump devices through sensing devices arranged at key positions of the water pump group; dividing independent pipe sections based on a pipe network topological structure and calculating fluid coupling strength coefficients of the pipe sections through the sensing data; generating an environment adaptive matching degree by combining a vibration main frequency of a target device with a basic frequency matching degree of pipe pressure pulsation main frequency and the coupling coefficient; if the environment adaptive matching degree is greater than or equal to a preset matching degree threshold, distinguishing between body abnormalities and conduction resonance by performing a rotating speed deviation test; if it is conduction resonance, maintaining flow stability by cooperative speed regulation of devices on the shortest conveying path; and if it is a body abnormality, issuing a fault early warning. The application realizes accurate fault early warning and risk mitigation by considering the coupling relationship between water pump devices.

This document describes fluid coupling devices for fluid handling systems. For example, some embodiments described in this document relate to fluid coupling devices that snap together, and are then secured to each other using a collar and collet mechanism. Some fluid coupling devices described herein are well suited for use in systems that provide fluid cooling for heat generating devices such as computer hardware. The fluid coupling devices described herein are also suitable for many other uses.

The invention relates to the technical field of engineering machinery, in particular to an electric cabinet cracking fault diagnosis method, device and equipment and engineering machine.The method comprises the steps that a fluid CFD simulation model corresponding to a cooling water channel in an electric cabinet is built; according to the fluid CFD simulation model, fluid pressure information corresponding to the wall face of the cooling water channel is obtained; based on a finite element FEM technology, establishing an electric cabinet structure simulation model with geometric features corresponding to the welding root notch at the welding root position; coupling the fluid pressure information corresponding to the wall surface of the cooling water channel to the wall surface of a fluid domain cavity corresponding to the electric cabinet structure simulation model to obtain a structure fluid coupling analysis model; and performing deduction calculation on stress information corresponding to the weld root notch in the structural fluid coupling analysis model based on the weld fatigue curve so as to diagnose the cracking fault of the weld root position. According to the invention, accurate diagnosis of the welding root cracking fault of the electric control box can be realized, and a reliable basis is provided for identifying the fault hidden danger of the electric control box in advance.

The invention relates to a fluid coupling arrangement 1 for sealingly connecting a hose 40 to a pressurized fluid line 50, such as a drinking water line. It is provided with at least one open elastic ring 10 for supporting the hose 40, the outer diameter of which corresponds to the inner diameter of the hose 40. It further comprises a coupling part 20, which includes a ring of inwardly chamfered, spring-elastic tongues 21 and a clamping element 22, which interacts with the ring of spring-elastic tongues 21 and is suitable for clamping the hose 40 between the tongues 21 and the open ring 10. It also includes a rubber-elastic, fluid-tight hose element 30, which is suitable and designed to enclose one end of the hose 40 to be connected in a U-shaped and ring-shaped manner, thus sealing it. This fluid coupling arrangement 1 proves to be very robust, seals very well and is advantageous in handling.

The present application relates to the technical field of marine engineering geology research, and particularly relates to a deep-sea cold spring system methane gas release simulation device and method based on PIV. The device comprises a stable pressure gas supply module, a simulation reaction module, a control collection module and a visual and PIV synchronous observation module. The stable pressure gas supply module comprises a bubble generation reaction kettle and a membrane gas-liquid pressure stabilizing device, and the membrane gas-liquid pressure stabilizing device is connected in parallel on the gas supply pipeline connecting the bubble generation reaction kettle and the simulation reaction module. The simulation reaction module comprises a flexible airbag valve system and a cold spring environment reaction cabin system, and the flexible airbag valve system is located at the air inlet of the cold spring environment reaction cabin system. The control collection module is used for controlling the bubble generation and directional release, and the visual and PIV synchronous observation module is located outside the cold spring environment reaction cabin system. The device can synchronously obtain the flow field structure, hydrate generation process, and inversion vorticity, shear rate, turbulence statistics, pressure field and acceleration, and provide a reliable experimental platform for revealing the bubble-hydrate-fluid coupling mechanism in the cold spring environment.

This invention relates to the field of ultra-precision polishing technology, specifically to an ultrasonic cavitation microjet polishing module for polishing microstructures. The module includes an acoustic focusing nozzle, a center-penetrating piezoelectric transducer, an adaptive acoustic impedance frequency tracking system, and a liquid supply and bubble nucleation system. The acoustic focusing nozzle employs a variable cross-section acoustic amplitude rod structure, ensuring that the standing wave antinodes and nozzle outlet are confocal, thus increasing energy density. The piezoelectric transducer has a ring structure with fluid flowing through its center, achieving efficient energy conversion. The frequency tracking system adjusts the excitation frequency in real time to maintain resonance. The liquid supply system introduces cavitation nuclei through a venturi tube, reducing the cavitation threshold. This invention, through an acoustic-fluid coupling mechanism, utilizes the dual effects of macroscopic kinetic energy removal and microscopic cavitation removal to solve the problems of traditional polishing techniques, such as difficulty in processing high aspect ratio microstructures, incomplete bottom polishing, and low efficiency. It achieves high-precision polishing of microstructure surfaces, and is particularly suitable for ultra-precision machining of deep and narrow grooves.

Fluid coupling devices can be used in fluid handling systems. Some fluid couplings include multiple rigid components, two fluid seal members, and a seal spacer that is mechanically captured and / or clamped between rigid components of the fluid coupling. Such seal spacers can be used to separate the two fluid seal members and to position the fluid seal members in desired operational positions.

The invention discloses an underwater robot depth and course control system, which relates to the technical field of underwater robots, and is characterized in that an equivalent strain energy anomaly index and a local maximum principal stress anomaly index are extracted through a structure-heat-fluid coupled three-dimensional finite element simulation model, and a failure risk prediction model is constructed by using a machine learning model; taking the comprehensive feature vector as input, and outputting a sealing structure failure prediction coefficient as a basis for dynamically adjusting a control strategy; the system limits or optimizes the propeller power, buoyancy adjusting frequency and course angle change rate in real time according to the failure prediction coefficient of the sealing structure so as to reduce the structural load and delay the fatigue process, a prediction model is continuously optimized through an error sample driven incremental learning mode, closed-loop self-learning and self-adaptive evolution of the control system are achieved, and the system reliability is improved. Therefore, the operation safety and the task execution stability of the underwater robot in the complex deep sea environment are improved.

A pump system may include a fluid pump including a fluid end. The fluid end may include a plunger configured for reciprocating movement, a suction valve biased to a closed position and configured to open during suction cycles of the fluid pump, and a discharge valve biased to a closed position and configured to open during discharge cycles of the fluid pump.The fluid pump may include a power end configured to drive reciprocating movement of the plunger. The pump system may be configured to variably control a torque requirement of the fluid pump. The pump system may include a reciprocating engine to produce torque to drive the power end of the fluid pump. The pump system may include a fixed-ratio gearbox or a dual-ratio gearbox operably coupling the power end of the fluid pump to the reciprocating engine using a non-fluid coupling.

The utility model belongs to the technical field of liquid coupler disassembly, and particularly relates to a device for quickly disassembling a liquid coupler, which comprises a sliding rod, a limiting plate is fixedly arranged at the front end of the sliding rod, a connecting column is in threaded connection with the tail end of the sliding rod, and the connecting column is in threaded connection with the liquid coupler. A balancing weight is arranged on the sliding rod in a sliding mode, two handles are symmetrically arranged on the balancing weight, traction ropes are fixedly connected to the handles, and the traction ropes are manually pulled to drive the balancing weight to slide on the sliding rod. When the hydraulic coupler dismounting device is used, the sliding rod is connected with the hydraulic coupler through the connecting column, then the counterweight block is pulled through the pulling rope to impact the limiting plate, and the sliding rod drags the hydraulic coupler out little by little under the action of inertia, so that the dismounting speed of the hydraulic coupler is increased, and the risks of breakage and deformation of the lead screw are completely eradicated.

Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a single-use, aseptic disconnection functionality that substantially prevents fluid spillage when being disconnected. In some embodiments, the coupling portions cannot be functionally reconnected to each other after being disconnected from each other. Some fluid coupling device embodiments described herein include a fluid flow path that is a metallic-free. Moreover, some embodiments of the fluid coupling devices provided herein include no metal whatsoever. That is, the fluid coupling devices are entirely metal-free.

A coupling assembly for a blind mate fluid coupling includes a housing unit with a through channel extending axially and a first recessed portion at a first end. A slide plate is disposed in the first recessed portion and movable in a first radial direction perpendicular to the axial direction, the slide plate having an opening. A slide base has a flat portion and a sleeve portion extending through the opening of the slide plate. The slide base is movable in a second radial direction perpendicular to both the axial direction and the first radial direction. The sleeve portion includes a tapered channel with a gradually narrowing diameter towards the flat portion. An inlet valve is at least partially disposed in the tapered channel and is movable in the axial direction and angularly pivotable within the tapered channel. This two-stage floating mechanism could accommodate radial, axial, and angular misalignment during blind mate coupling operations.

An electric cable assembly is provided. The electric cable assembly includes an electric cable and a connector. The connector includes an interface portion and a pivotable member. The interface portion includes an electrical interface and a fluid coupling. The pivotable member includes an arm that is configured to be engageable with the fluid coupling of the interface portion. The fluid coupling is configured to be removable from the fluid socket of the electric device or the charging station when the arm of the pivotable member is engaged with the fluid coupling.

The application discloses a reaction flow and solid fluid coupling calculation method, equipment and medium, relates to the fluid coupling calculation technical field, and the method comprises the following steps: performing an estimation process and a correction process in a current time step of a current time cycle; comparing the difference between the result obtained in the last time step and the result obtained in the current time step; in the case of being less than a preset tolerance, entering the next time cycle until the number of time cycles reaches a preset number, and outputting the fluid coupling result; in the case of being greater than or equal to the preset tolerance, entering the next time step until it is determined that each difference is less than the preset tolerance. The application is used to solve the problem that the change of the solid is not considered when the fluid coupling is carried out in the prior art, resulting in low accuracy of the result obtained when the fluid coupling is calculated, and realizes accurate calculation of the fluid coupling by combining the mechanical interaction, thermal interaction and chemical reaction of the reaction flow and the solid.

The utility model relates to the technical field of fluid control, in particular to a fluid coupling component and a fluid coupling device. The fluid coupling part comprises a shell, a valve body, a sealing part and a spring. The shell is provided with a containing cavity, an abutting face, a first guide face and a valve port. The valve body is provided with a liquid passing opening and a second guide face extending in the axial direction of the fluid coupling component. The second guide surface is in sliding fit connection with the first guide surface in the closing process of the valve port; the sealing part is arranged on the outer surface of the valve body; the spring is used for applying force to the valve body in the valve port direction; when the fluid coupling part is in an open state, liquid enters the fluid coupling part from one end of the fluid coupling part and is discharged from the valve port after passing through the liquid passing port, so that a fluid channel is formed. When the fluid coupling component is in a closed state, the sealing part abuts against the abutting face to seal the fluid channel. The fluid passage is provided with a first guide surface arranged on the valve body and a second guide surface arranged on the sealing part, the first guide surface guides fluid to flow to the second guide surface, and the second guide surface guides the fluid to avoid the second guide surface. The phenomena of turbulence and pressure drop can be reduced.

According to various embodiments, a vacuum assembly comprises: a first vacuum flange (102) and a second vacuum flange (112), which are designed to be vacuum-tightly joined together along a coupling direction (101); a fluid coupling having a fluid coupling plug (106) coupled to the first vacuum flange (102) and a fluid coupling socket (116) coupled to the second vacuum flange (112), said fluid coupling socket (116) having a recess (116v), which tapers in the coupling direction (101), for receiving the fluid coupling plug (106); and one or more fluid connections, a first fluid connection (206) of which is fluid-conductively coupled to the recess (116v) for example and / or a second fluid connection (216) of which is fluid-conductively coupled to the fluid coupling plug (106) for example.

Fluid coupling devices can be configured for use in fluid systems for purposes of providing a single-use, aseptic disconnection functionality that can substantially limit fluid spillage when being disconnected. In some embodiments, the coupling portions cannot be functionally reconnected to each other after being disconnected from each other. The coupling portions can be identical to each other in some embodiments. A retainer component of the fluid coupling devices can be removably engaged with the coupling portions while the coupling portions are abutted against each other in an operative arrangement.

This invention provides a method and apparatus for controlling the mesh generation of a thermal-fluid coupling model for a distribution transformer. The method includes establishing a thermal-fluid coupling numerical model of the distribution transformer, dividing the mesh nodes, constructing rectangular mesh nodes for oil passages within the winding, oil passages surrounding the winding, and oil passages on the heat sink, and constructing arbitrary mesh nodes for winding structural components and the main oil passages of the tank. The rectangular mesh nodes are then subjected to rectangular mesh mapping, and the arbitrary mesh nodes are subjected to arbitrary mesh mapping, with the rectangular mesh mapping scale being smaller than the arbitrary mesh mapping scale. A heat source is applied to the winding, and the winding temperature is obtained based on the thermal-fluid coupling numerical model of the distribution transformer. Rectangular mesh nodes are added until the winding temperature meets the accuracy requirements to obtain the temperature distribution characteristics of the winding. This invention can improve the overall mesh quality of the winding, reduce the number of meshes while ensuring the accuracy of the winding temperature rise characteristic solution, and improve mesh quality. It also has strong versatility.

The subject matter described herein relates to a method for filling fluid containers, in particular fluid containers for fuel cells The method includes: providing a pressure chamber having a pressure chamber interior; positioning a fluid container within the pressure chamber interior in such a manner that a holding space of the fluid container is fluidically connected to the pressure chamber interior; evacuating the pressure chamber interior up to a target negative pressure in such a manner that, due to the fluid coupling, a negative pressure difference initially forms in the pressure chamber interior with respect to the holding space; and filling the fluid container by introducing a fluid into the holding space.

A fluid coupling element (1) comprising: a body (2); a locking ball (3); a locking ring (5) slidably cooperating with the body (2) and having an inner radial covering surface (51) to hold and release the locking ball (3); the gasket (7) is used for guiding the locking ring (5) to slide and is arranged between the main body (2) and the locking ring (5); a spring (63) is interposed between the body (2) and the washer (7) to push back the lock ring (5) through the rear surface (57). The minimum inner diameter (D53) of the locking ring (5) behind the rear surface (57) is greater than or equal to the outer diameter (D72) of the gasket (7). The inner diameter (D71) of the gasket (7) is strictly smaller than the diameter (D51) of the inner radial covering surface (51).

A fluid coupling system is provided that includes a first coupler that can be mounted to a first support, and a second coupler that can be mounted to second support. Each of the first and second couplers include a coupler body extending through openings of the respective support walls, and gaskets positioned over the coupler body and on opposing sides of the respective walls of the first and second supports. The gaskets form a fluid tight seal between the first and second coupler bodies and the respective supports, while permitting pivoting of the first and second couplers relative to the respective supports to accommodate for misalignment of the first and second couplers. In some embodiments the first and second supports can be walls of a container or can include framing that supports the containers.

The invention relates to the technical field of assembly, and discloses a heatable magnetofluid coupling drawing device which comprises a workbench, a bearing table is installed on the workbench, a workpiece is placed on the bearing table and comprises a coupling needing to be disassembled and a main shaft, and a mica electric heating ring body is arranged on the outer wall of the coupling in a sleeving mode and used for heating the coupling. Through a double limiting structure of axial pressure locking and radial clamping locking, the pressing plate is always tightly attached to the upper portion of the coupler under the pressure maintaining effect of the air cavity, stable axial constraint is formed, the pushing block drives the clamping rod to be clamped to the inner side wall of the coupler to achieve radial locking after resetting, the jumping space and amplitude of the coupler can be effectively limited through double constraint, and the reliability of the coupler is improved. Risks of core damage such as sealing cavity deformation and matching surface scratching caused by jumping are remarkably reduced, and the structural integrity and subsequent assembly precision of the magnetofluid coupling are well guaranteed.

The invention provides a shield slurry discharge pump blockage prediction method and device based on geological-fluid coupling parameters. The shield slurry discharge pump blockage prediction method comprises the following steps: pre-constructing a slurry discharge pump blockage prediction model; in the tunneling process of the shield tunneling machine, i-ring tunneling time sequence data are obtained in real time, the i-ring tunneling time sequence data are preprocessed and then input into the slurry discharge pump blockage prediction model to obtain i-ring predicted blockage results, and the i-ring predicted blockage results are slurry discharge pump blockage conditions at all time points in the i-ring tunneling process; 1 is added to the value of i, the above content is repeated until i = L, L > = i > = 1, and L is the total number of tunneling rings of the shield tunneling machine. According to the scheme, the prediction model is constructed based on the slurry parameters of the slurry discharge pump, the geological parameters and the auxiliary working condition parameters, so that the geological-fluid coupling influence is fully captured, and the blockage core driving factors are accurately described.

A fluid coupling containing two coupling halves coupled to one another via connecting elements. Each of the coupling halves containing a housing which has an end face. The end face having at least one connecting element for the mutual connection of the coupling halves. The housing having connecting faces of the two coupling halves contacting one another when in the coupled state. A spherical valve element and a locking element, which can be mutually operated via the connecting elements and releases a rotary lever for operating the valve element.

The present invention relates to the technical field of fluid coupling maintenance equipment. Disclosed is a puller for fluid coupling maintenance, comprising a hydraulic cylinder and a connecting sleeve. A screw rod is threadedly mounted inside the hydraulic cylinder. The connecting sleeve is sleeved on the outside of the screw rod. A threaded sleeve is provided inside the connecting sleeve. The threaded sleeve extends outwards from an end portion of the connecting sleeve away from the hydraulic cylinder, and the threaded sleeve is detachably connected to the connecting sleeve. An end portion of the screw rod proximal to the connecting sleeve is movably inserted into the threaded sleeve. An ejector rod having an adjustable length is disposed on the end portion of the screw rod inserted into the threaded sleeve. The ejector rod is arranged to extend out of the threaded sleeve. In the present invention, the connecting sleeve and the threaded sleeve are detachably connected, such that the threaded sleeve can be easily replaced when threads on the threaded sleeve are damaged. The screw rod is provided with an ejector rod having an adjustable length, so as to adapt to disassembly of different models of fluid couplings. The invention provides the advantages of reduced usage costs, ease of use, and improved disassembly efficiency.

The utility model discloses an auxiliary positioning device for hydraulic coupler installation, which comprises a lifting sleeve, a lifting rod is slidably connected in the lifting sleeve in a penetrating manner, a supporting leg is arranged in the middle of the lifting sleeve, and a second push rod is fixedly installed at the bottom of one side of the lifting sleeve. Moving wheels are fixedly installed at the bottoms of the supporting legs, a moving cross rod is fixedly installed at the tops of the lifting rods, a displacement motor is fixedly installed at one end of the top of the moving cross rod, the moving cross rod is slidably connected with a moving frame located between the two lifting rods, and a fixed clamping jaw is arranged at the bottom of the moving frame; and the top of the second push rod and the bottom of the movable cross rod are fixedly mounted. And the first push rod or the second push rod is controlled to retract to a proper position, and the mounting part is aligned with the part mounting position of the hydraulic coupler, so that mounting is facilitated, the stability during rotary mounting is improved, and shaking or deflection in the mounting process is avoided.

This invention provides a variable damping magnetohydrodynamic coupler for marine generator sets and its control method, comprising a housing, an input shaft, an output shaft, an excitation assembly, a control unit, a piezoelectric element assembly, and an auxiliary sensing assembly. A damping cavity is provided within the housing. The excitation assembly includes a magnetorheological fluid, an excitation coil, and a magnetic ring. The magnetorheological fluid fills the damping cavity, and the excitation coil adjusts the magnetic field of the magnetic ring through the excitation current to control the damping torque of the magnetorheological fluid. Based on the controllable viscosity of the magnetorheological fluid, the damping torque can be continuously adjusted over a wide range of 50~500 Nm by adjusting the excitation current to change the magnetic field strength, dynamically adapting to complex operating conditions such as shipboard turbulence and sudden load changes. Combined with the micro-compensation function of the piezoelectric element assembly, the coaxiality accuracy of the shaft system is improved to ±0.002 mm, and the resonance risk caused by over-compensation under high-speed conditions is avoided through a speed correction coefficient.