253 results about "Fluid coupling" patented technology

The embodiment of the invention provides a filling production line control method and system based on a virtual reality technology. According to the embodiment of the invention, the method comprises the steps: synchronously collecting a real-time dynamic parameter set of a fluid medium, constructing a dynamic coupling factor, generating a dynamic response coefficient matrix through a fluid coupling identification model, generating a nonlinear control parameter combination according to the dynamic response coefficient matrix, and inputting the nonlinear control parameter combination into a motion trail planner. Generating an optimized motion track instruction, driving an execution mechanism to execute filling operation according to the optimized motion track instruction through a servo controller, monitoring the deviation degree in real time, reconstructing the fluid coupling identification model when the deviation degree exceeds a preset threshold value, and updating a dynamic coupling factor; the nonlinear control parameter combination is corrected through the updated dynamic coupling factor, a closed-loop interlocking control mechanism is generated, and the technical scheme provided by the embodiment of the invention not only improves the intelligent level of a filling production line, but also improves the precision and stability in the filling process.

The invention provides a dynamic-fluid coupling effect induced earthquake simulation test device and a test method. The test device comprises a dynamic true triaxial electromagnetic Hopkinson bar system, a sealed loading system and a data monitoring and control system, wherein the dynamic true triaxial electromagnetic Hopkinson bar system is used for acting on a simulated fault sample and simulating a true triaxial stress state and multi-axis and multi-direction power disturbance of an underground fault; the sealed loading system is used for pressurizing and injecting fluid into the simulated fault sample and sealing the fluid under dynamic and static combined loading of the simulated fault sample; the sealed loading system is matched with the dynamic true triaxial electromagnetic Hopkinson bar system to load dynamic disturbance to a simulated fault sample containing fluid, simulate a fault stress state in an underground engineering project involving fluid activity and perform a dynamic-fluid coupling effect induced earthquake simulation test. According to the invention, the true triaxial stress state and the multi-axis and multi-direction power disturbance of the underground fluid-containing fault can be simulated.

The invention provides a dry-type transformer turn-to-turn short circuit multi-physical field simulation analysis method considering insulation aging and harmonic influence, and relates to the technical field of simulation analysis, and the method comprises the following steps: constructing a physical simulation model of a to-be-tested dry-type transformer; setting physical parameters and multi-physical field operation conditions of the physical simulation model; calculating a corresponding physical field operation calculation result under each physical field operation condition; performing post-processing on the physical field operation calculation result; by establishing a detailed simulation model and accurately assigning physical property parameters of each component, physical property changes of the turn-to-turn insulating material at different aging stages and under different temperature and frequency conditions are emphatically considered; turn-to-turn short circuit fault modeling is further introduced, magnetic-thermal-flow coupling simulation calculation is carried out under multi-harmonic excitation, the multi-physical field distribution characteristics of the dry-type transformer during different turn-to-turn short circuit faults are explored, and a reliable basis is provided for design optimization and safety evaluation.

A coupling member for a blind mate fluid coupling includes a housing and a valve body that is self-centering and alignable relative to the housing. The valve body may include at least two radial shoulder portions or abutments that are configured to engage at least two corresponding radial abutments of the housing to improve self-centering when in a decoupled state. A biasing member may urge the valve body abutments against the corresponding housing abutments to compensate for misalignment and / or provide self-centering in both a decoupled and mated state.

The invention discloses a laser cladding preparation method for improving the wear resistance of a cladding layer by doping tungsten carbide. According to the method, cladding process parameters are preliminarily obtained based on finite element heat flow analogue simulation, cladding layer preparation is carried out, cladding quality characterization is carried out to obtain the optimal cladding process parameters, and finally the cladding layer with the wear-resistant characteristic is obtained. The method comprises the following steps: firstly, constructing a heat flow coupling three-dimensional model, carrying out grid division, establishing a heat source model, defining thermophysical parameters of tungsten carbide (10-15%) nickel alloy composite powder and a matrix, and determining simulated boundary conditions; setting a multi-factor process parameter combination to carry out numerical simulation calculation, and determining laser processing process parameters of laser power, scanning speed and light spot diameter; preparing a cladding layer on the surface of the nodular cast iron by using tungsten carbide (10-15%) nickel alloy composite powder through a laser cladding method; and carrying out microscopic morphology and microhardness experiments to carry out quality analysis verification on the cladding layer, determining the optimal process parameters of laser power, scanning speed and light spot diameter when the cladding layer has no obvious defect morphology and the hardness is higher than that of the raw material, and obtaining the laser cladding preparation method for improving the wear resistance of the cladding layer by doping tungsten carbide. The invention provides a new research method and a high-quality preparation approach for improving the wear resistance of the cladding layer by tungsten carbide, and can be widely applied to the fields of strengthening and repairing mining machinery, aerospace parts and the like.

A pair of fluid couplings for liquid cooling electronic devices comprises a first fluid coupling and second fluid coupling. The first fluid coupling comprises a female coupling interface and the second fluid coupling comprises a male coupling interface to couple with the female coupling interface. Each of the fluid couplings comprises a magnetic latch assembly coupled to the coupling interface thereof. Each magnetic latch assembly comprises a shell, magnets housed within the shell, and a group of ramp-and-hook latches coupled to the shell. The magnets cause the magnetic latch assemblies to magnetically attract one another during coupling, reducing the force a user may need to apply to complete the coupling. The ramp-and-hook latches of one magnetic latch assembly are complementary to the ramp-and-hook latches of the other magnetic latch assembly, and they are arranged to engage with one another and interlock when the first and second fluid couplings are coupled.

A nozzle includes a nozzle bayonet with a warm seal positioned at a distal end and a nose seal positioned at a proximal end so that a distal passage is defined between the warm and nose seals. The nozzle also includes a nozzle poppet valve. Purge and vent lines are in fluid communication with the distal passage. A receptacle includes a receptacle poppet valve, a receptacle inner tube and a receptacle outer tube with a receptacle insulation space defined therebetween. A coupling space is defined between an outer casing and the receptacle outer tube. The receptacle coupling space receives the nozzle bayonet. The receptacle sequentially engages the warm seal and the nose seal of the nozzle during insertion of the nozzle bayonet into the receptacle coupling space with the nozzle and receptacle poppets engaging to open the nozzle and receptacle poppet valves when the nozzle bayonet is fully inserted into the receptacle coupling space.

A coupling member for a blind mate fluid coupling includes a housing and a valve body that is self-centering and alignable relative to the housing. The valve body may include at least two radial shoulder portions that are configured to engage at least two corresponding radial abutments of the housing to improve self-centering when in a decoupled state. An engagement member, such as a socket, may be provided in the housing to engage a radial shoulder of the valve body with a concave interface to enhance the misalignment compensating and / or self-centering functionality. The engagement member may be free to float radially relative to the housing to further enhance such effects. A compensator that urges an engagement member against a shoulder of the valve body may be provided to compensate for misalignment and / or provide self-centering in both a decoupled and mated state.

A fluid coupling may include a valve housing defining an internal fluid passage extending along a longitudinal axis between a first end and a second end of the valve housing; a valve member including a central longitudinal bore and disposed within the valve housing, the valve member operable between an open position and a closed position to permit and block fluid flow through the internal fluid passage, respectively; a handle assembly operably connected to the valve member, the handle assembly being movable between a first position in which the valve member is in a closed position and a second position in which the valve member is in an open position; an interface member secured to the valve housing, the interface member including at least one engagement feature for coupling the fluid coupler with a similarly shaped engagement feature of a second fluid coupler.

Fluid handling couplings can include a main body with a front face and defining a longitudinal axis. Fluid handling couplings can include a post extending parallel to the longitudinal axis, and a post receptacle. Fluid handling couplings can include a seal coupled to the main body around the longitudinal axis. A portion of the seal can protrude from the front face of the main body. Fluid handling couplings can include a removable membrane releasably attached to the front face of the main body and covering the portion of the seal protruding from the front face of the main body. Fluid handling couplings can be genderless, can include manually openable valves, and can be configured for single-use aseptic fluid handling usage.

The invention provides a heat conduction and airflow coupling heat dissipation system and method for a medium-voltage switch cabinet, and relates to the technical field of heat dissipation of medium-voltage switch cabinets, and the method comprises the steps: carrying out the heat dissipation demand evaluation of heat source data obtained through the recognition of a heat source in the medium-voltage switch cabinet, and determining a temperature rise threshold value; performing heat conduction path optimization through the heat source data and the temperature rise threshold value to obtain heat dissipation structure data; carrying out airflow organization design and flow optimization based on the heat dissipation structure data to obtain a flow optimization scheme; performing heat-flow coupling simulation according to the heat dissipation structure data and the flow optimization scheme to obtain a heat-flow simulation result; and carrying out structure optimization and heat dissipation enhancement on a heat-flow simulation result, and carrying out engineering implementation through an obtained heat dissipation optimization structure. According to the invention, the technical target of design-manufacturing-operation and maintenance full-link collaborative optimization can be realized, and the technical effects of improving the energy efficiency consistency of the heat dissipation system, reducing the dispersion of product performance and enhancing the adaptability to complex working conditions are achieved.

Disclosed is a fluid coupling comprising a receiving element, a securing element, a retaining element and a plug-in element, the securing element being designed to be displaceable between a release position and a locking position, the securing element being engaged with the retaining element in the release position of the securing element, the plug-in element allowing the securing element to be displaced, the fluid coupling comprising a spring element which exerts a spring force on the securing element so that the securing element is preloaded in the direction of its 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.

Some fluid coupling devices described herein are configured as non-spill fluid couplings. In addition, some embodiments described in this document relate to fluid coupling devices that are constructed modularly, and to modules that can be universally incorporated into the construction of multiple different types of fluid couplings. Further, fluid handling component coupling members are described.

A pair of fluid couplings for liquid cooling electronic devices comprises a first fluid coupling and second fluid coupling. The first fluid coupling comprises a female coupling interface and the second fluid coupling comprises a male coupling interface to couple with the female coupling interface. Each of the fluid couplings comprises a magnetic latch assembly coupled to the coupling interface thereof. Each magnetic latch assembly comprises a shell, magnets housed within the shell, and a group of ramp-and-hook latches coupled to the shell. The magnets cause the magnetic latch assemblies to magnetically attract one another during coupling, reducing the force a user may need to apply to complete the coupling. The ramp-and-hook latches of one magnetic latch assembly are complementary to the ramp-and-hook latches of the other magnetic latch assembly, and they are arranged to engage with one another and interlock when the first and second fluid couplings are coupled.

This document describes fluid coupling devices for fluid handling systems. For example, this document describes male and female couplings that can be snapped together, and that are disconnectable by manually compressing an ovular collar of the female coupling. Some fluid coupling devices described herein are well suited for use in systems that provide liquid cooling for heat generating devices such as batteries, power sources, electronics, computer hardware and the like. Moreover, the fluid coupling devices described herein are also suitable for many other fluid coupling uses.

Fluid couplings can be designed to prevent spillage of fluid when disconnecting the couplings after use. In some embodiments, the fluid couplings include internal valve components but no springs, or no springs in the fluid flow path. In some embodiments, the internal valve components of a male coupling and a female coupling can be designed to latch together in an abutted arrangement.

Aseptic fluid coupling devices can be used for fluid systems and manufacturing processes that require sterilized fluid flow pathways. For example, aseptic fluid coupling devices that include removable membrane strips that protect the interior of the aseptic fluid coupling devices from contamination prior to use can be used in such contexts. Methods for attaching removable membranes to the aseptic fluid coupling devices can include the use of a pre-formed membrane or heat sealing using a protruding die that reduces the resultant tension of the removable membranes.

The invention relates to the technical field of fluid connecting devices, in particular to a fluid connecting piece which comprises a connecting component, a limiting assembly and an operating mechanism. A mounting cavity is formed in the connecting component; the limiting assembly is movably accommodated in the mounting cavity; the limiting assembly comprises a limiting pin, a switch pin and a locking piece, the switch pin and the limiting pin are movably arranged relatively, and the locking piece is movably connected to the limiting pin; the operating mechanism is in transmission connection with the limiting pin; wherein the switch pin can move between a first position and a second position, and when the switch pin is in the first position, the locking piece is locked to the limiting pin and the connecting component; in the second position, the locking piece releases the limiting pin and the connecting component, and the operating mechanism can drive the limiting pin to move relative to the connecting component. According to the fluid connecting piece in the embodiment, the combination mode of the connecting component and the limiting assembly is improved, the problem that in the prior art, a locking pin of a connecting piece is insufficient in strength is effectively solved, and therefore the safer and more reliable connecting effect is achieved.

A service brake control system for a combination vehicle including a towing member and first and second towed members includes an electro-pneumatic brake control valve on the first towed member that delivers fluid pressure through a delivery port in response to an electronic control signal that is generated by a brake controller on the towing member. A double check valve includes a first supply port in fluid communication with a forward fluid coupling on the first towed member that delivers a first fluid control signal from the towing member, a second supply port in fluid communication with the delivery port of the electro-pneumatic brake control valve and a delivery port in fluid communication with a rear fluid coupling on the first towed member that delivers a second fluid control signal from the double check valve to the second towed member.

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 relates to the technical field of fluid mechanics data processing, in particular to a construction method of a fluid mechanics simulation model applied to a fan. The method comprises the following steps: acquiring fan drawing information; the geometric structure of the fan drawing information is recognized, wherein the geometric structure comprises an air inlet and outlet, an air guide cover, an air guide direction rotating shaft and an air bag connector; judging the structural shape of the fan according to the air inlet / outlet and the air guide direction rotating shaft to obtain structural shape data; performing fan structure corresponding position identification on the wind scooper and the wind bag connector to generate structure position data; and constructing a fan structure model based on the structure shape data and the structure position data. Through the data processing technology and the analogue simulation technology, the fan fluid mechanics simulation model is constructed according to the fan application scene information, so that heat flow coupling vibration simulation and turbulent vortex separation phenomenon simulation of the fan are realized, and the accuracy and efficiency of fan simulation are higher.

The invention belongs to the technical field of power equipment insulation structure design, and discloses a power equipment heat flow coupling field rapid calculation method and a related device. Processing unknown working conditions by using the trained KAN neural network agent model to obtain feature coefficients corresponding to the unknown working conditions; calculating to obtain a power equipment heat flow coupling field corresponding to an unknown working condition by using the calculated orthogonal basis vector and the characteristic coefficient corresponding to the unknown working condition; the orthogonal basis vector calculation process comprises the following steps: establishing a power equipment heat flow coupling field simulation model, and calculating to obtain simulation results corresponding to different working conditions; constructing a sample set through a simulation result; performing eigenorthogonal decomposition on the sample set to obtain feature coefficients and orthogonal basis vectors of the corresponding sample set under different working conditions; according to the method, rapid calculation of the heat flow coupling field of the power equipment can be met, and the accuracy of a calculation result can be ensured while the calculation efficiency is improved.

Fluid couplings described herein are designed be assembled efficiently and economically. In example embodiments, the fluid couplings are designed with minimal component parts so that the fluid couplings are additionally economical to produce. A main body of the fluid coupling defines an opening through a side wall. A valve member and a conical spring are insertable into an internal space defined by the main body. The maximum outer diameter of the conical spring is smaller than the opening through the side wall. Accordingly, the conical spring can be inserted through the opening.

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.