320 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.

Embodiments of a method include connecting an inner end of a base of a fluid coupling assembly to an outer surface of a manifold of a hydraulic fracturing system. The base includes an outer end opposite the inner end and a through-passage extending from the outer end to the inner end. In addition, the method includes inserting a coupling adapter into the through-passage from the outer end to compress the coupling adapter into the through-passage and to position a connection device of the coupling adapter outside of the through-passage at the outer end.

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.

An undersea hydraulic coupling member having a ring-shaped seal with multiple sealing surfaces extending radially inwardly therefrom is disclosed. The multiple sealing surfaces help guide the probe of the male coupling member into the female member without the risk of drag or galling of the receiving chamber or metal seal retained therein. The seal has an interfit with reverse inclined shoulders in the female member to restrain the seal from moving radially inwardly due to vacuum or low pressure. The seal also includes an internal biasing element to restrain the seal from moving radially inwardly during de-mating of the coupling members.

Fluid couplings described herein are designed to prevent spillage of fluid when connecting and disconnecting the couplings. In some embodiments, the fluid couplings described herein include internal valve components. In some example embodiments, the internal valve components include two springs that are arranged to exert their spring forces in parallel with each other to bias a valve component to a normally closed position. Some embodiments include a single spring. In particular embodiments, components of the fluid couplings and fluid flow paths of the fluid couplings have oblong transverse cross-sectional shapes.

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.

Some fluid coupling devices described herein are configured as non-spill fluid couplings. Furthermore, some embodiments described in this document relate to fluid coupling devices of modular construction, and to modules that can be universally incorporated into the construction of a variety of different types of fluid couplings. In addition, fluid treatment component coupling members are described.

An aseptic fluid coupling includes a main body, a front face, a termination that is at an opposite end of the main body in comparison to the front face, an alignment post extending from a portion of the front face, and an alignment guide defining internal space configured to slidably receive an alignment post of another aseptic fluid coupling when two of the aseptic fluid couplings are mated together.

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.

The invention provides a temperature rise calculation method for a liquid-immersed transformer. The liquid-immersed transformer temperature rise calculation method comprises the steps that S1, a thermal circuit calculation model of the average oil temperature of a transformer and an electromagnetic and fluid coupling calculation model are established; s2, the thermal resistance R, the total heat capacity sigma CSUM and a heat source of the transformer are obtained, so that the average oil temperature theta om of the transformer is obtained, then the oil temperature theta bo of an oil outlet of a radiator of the transformer is obtained, and the oil temperature theta bo of the oil outlet of the radiator serves as the open boundary incoming flow temperature in the coupling calculation model; s3, acquiring a temperature distribution condition on the transformer, and obtaining a temperature value T2 on a coil grid unit of the transformer according to the temperature distribution condition; s4, judging whether the conductivity is corrected or not; and S5, after the conductivity is corrected, the steps S2, S3 and S4 are repeated until the temperature distribution is in a convergence state. According to the invention, the problems of low calculation efficiency and poor accuracy of the temperature rise calculation method of the liquid-immersed transformer in the prior art are solved.

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.