255 results about "Fluid transport" patented technology

The invention relates to the technical field of fluid transportation and heat dissipation, and discloses a parameterization-based bionic vein micro-channel design method, which comprises the following steps of: constructing a vein channel model, and deducing to obtain bionic scale parameters of a secondary vein fractal channel and structural parameters of a primary vein channel on the basis of the vein channel model; and then calculating the temperature difference and the pressure drop value of each stage of secondary pulse through a Reynolds number based on the secondary pulse diameter and the secondary pulse flow velocity so as to construct a multi-target coupling optimization function, and solving the optimal value of the adjustable parameter of the corresponding vein flow channel model when the minimum value of the multi-target coupling optimization function is solved based on a Newton iteration method. According to the method, a systematic and precise design scheme is provided for the thermal control field through structural parameterization design, multi-objective function optimization and intelligent optimization calculation, organic unification of low-flow-resistance and efficient material transportation and heat dissipation is achieved, and the method has certain feasibility and engineering application value.

An assembly and method are disclosed for generating and detecting a modulated pressure signature in a fluid transported to a subsurface injection zone. The assembly includes a pump, a pulsation dampener, and a pressure modulation device that oscillates pressure to produce a frequency-modulated signature in the fluid, resulting in an alternating current streaming potential (AC-SP) at the injection zone. The method includes recording modulated electromagnetic signals at an array of electromagnetic field receivers on a surface above the subsurface injection zone, processing the data to identify source frequency signals, and correlating these signals to image subsurface fluid or pressure distribution, enabling three-dimensional mapping of subsurface structures.

The invention provides an FPVA biochip layout method considering reagent type difference in unit multiplexing, which comprises the following steps of: modeling a biochip layout task as a Markov decision process: according to the size of an input FPVA chip, the dependency relationship of each operation in a biochemical reaction sequence diagram, the reagent type contained in each operation and a binding scheduling scheme, determining the FPVA biochip layout task; initializing an FPVA mesh model and defining a state space, an action space and a reward function; wherein the reward function is set according to the total unit multiplexing complexity of the current layout scheme, the legality of the current component layout and the distance between the component and the center point of the FPVA chip; and finally, completing the FPVA biochip layout through the dual deep Q network based on a Markov decision process. By designing a reward function, the unit multiplexing complexity is minimized, and the distance between components containing the same type of reagents is reduced, so that the purposes of minimizing the cross contamination degree of a final layout scheme, the total length of a fluid transportation path and the bioassay completion time are achieved.

The invention discloses a water hammer eliminating device and method based on cloud network intelligent interconnection, and belongs to the technical field of fluid conveying system safety protection. Aiming at the problems of response lag, node isolation, lack of predictive ability and poor fault tolerance of a traditional water hammer elimination device, the invention provides an intelligent protection scheme fusing cloud edge collaboration and physical data hybrid modeling. The device comprises a distributed data acquisition module, a water hammer elimination execution module, an intelligent control module and a cloud platform, real-time fluid parameters are collected, pipe network topological information is combined, the action time sequence is calculated based on the pressure wave propagation speed and the node distance, and pre-action is started before pressure waves arrive; a physical simulation model and an LSTM data driving model are fused to predict the water hammer risk, the safety redundancy time and the execution strategy are dynamically adjusted, and local autonomy and fault tolerance under communication interruption are supported. Millisecond-level pre-action and multi-node cooperative pressure relief are achieved, the water hammer peak pressure is remarkably reduced, and the safety and the intelligent operation and maintenance level of a complex pipe network are improved.

The invention relates to a low-power-consumption data center refrigeration regulation and control method and system for gas-liquid heat exchange equipment, and belongs to the technical field of data center temperature control. The method comprises the following steps that a transient heat flux density distribution diagram of the surface of a data center is generated; reconstructing a three-dimensional temperature field and a three-dimensional airflow velocity field in the cabinet by using a computational fluid dynamics reduced-order model according to the obtained transient heat flux density distribution diagram; an abnormal thermal environment in the cabinet is self-adaptively identified to generate a dynamic jet flow control strategy; driving a micro-spraying pipe mounted at the back of the cabinet, spraying micro-jet of dielectric cooling liquid to the abnormal thermal environment by using the micro-spraying pipe, and impacting and damaging a boundary layer of the abnormal thermal environment by using the micro-jet; the rotating speed and the inclination angle of an exhaust fan at the top of the cabinet are adaptively adjusted to form a negative pressure suction flow field in which the internal area of the abnormal thermal environment is coupled with the inclination angle of the exhaust fan, so that the fluid conveying power consumption is reduced; the data center has the advantages that the power consumption of the data center is reduced by adjusting the rotating speed and the inclination angle of the exhaust fan.

The invention provides an acoustic damping device, comprising: an outer shell enclosing a flow channel having a first end to be connected to a liquid inlet and a second end to be connected to a liquid outlet, and an inner tube arranged within the outer shell, wherein a damping space is defined within the inner tube, 5 wherein the flow channel runs between the inner tube and the outer shell, and wherein the inner tube is at least partially made of elastic or viscoelastic material to damp pressure waves in fluid flowing through the flow channel.

The invention relates to a clamping pad (4) for a device for holding a tube (6) by means of friction, comprising a steel casing (8) in which a cavity (10) provided with a bottom (12) and two lateral edges (14) is formed. The cavity is filled with a flexible polymer material (16) in which a plurality of gripping bars (18a, 18b) are housed. The lateral gripping bars (18a) each have a different geometrical shape from the other gripping bars (18b) and each have a lateral face (22a) having a rounded profile matching the profile of the corresponding lateral edge of the cavity and which is in sliding contact therewith. Means (24) are provided for confining the flexible material in the cavity between the gripping bars at their respective contact face.

The invention relates to the technical field of bamboo processing and modification treatment, and discloses a method for improving high-permeability bamboo modification, which comprises the following steps: preparing a mixed aqueous solution of 9.25-37 mmol / L of alkali compound and 9.3-27.8 mmol / L of persulfate, and dipping bamboo at normal temperature for 3-6 hours; the soaked bamboo wood is heated and activated, and the activation mode is selected from one of 60-80 DEG C constant-temperature water bath treatment, 300-550 W microwave radiation treatment or 100-400 W ultrasonic radiation treatment; and after the activated bamboo wood is cleaned to be neutral, freeze drying is conducted at the temperature ranging from-50 DEG C to-70 DEG C. According to the method, free radicals generated by alkali liquor swelling and synergistic thermal activation of persulfate are utilized, bamboo blocking pore extracts are oxidized and degraded, a fluid conduction path is dredged, the permeability and porosity of the bamboo are improved, the original mechanical strength of the bamboo is kept, and the technical problems that traditional modified liquid medicine is difficult to permeate, and a skeleton is damaged due to strong base treatment are solved.

A device includes a first portion, a second portion moveably coupled to the first portion via a junction, and a cooling loop structure. The cooling loop structure includes a fluid transport structure and a fluid driving structure coupled to the fluid transport structure. The fluid driving structure is configured to move a fluid through the fluid transport structure. The fluid transport structure extends into the first portion, into the second portion, and across the junction to enable heat distribution between the first portion and the second portion.

The invention relates to a temperature control device (1) for temperature control of a fluid, comprising: at least one fluid supply (11), at least one fluid discharge (12), and at least one fluid transport element (13), wherein the fluid transport element (13) comprises a drive (131) and at least one fluid conveying element (132) connected to the drive (131), and the drive (131) moves the fluid conveying element (132) as required, wherein the fluid conveying element (132) is in contact with the fluid at least partially, and when the drive (131) is activated, the fluid conveying element (132) transports fluid from the fluid supply (11) to the fluid discharge (12). The fluid conveying element (132) comprises an elastocaloric material at least partially. The invention also relates to a vehicle with a temperature control device (1) and a method for temperature control of a fluid.

A damper with inner and outer tubes, a piston rod extending between first and second piston rod ends, and a piston mounted to the second piston rod end. The piston is disposed within the pressure tube to define rebound and compression chambers. A fluid transport chamber is positioned between the inner and outer tubes and an intake valve assembly, abutting one end of the pressure tube inside the outer tube, and defines at least one intermediate chamber that is arranged in fluid communication with at least one externally mounted, electro-mechanical control valve. A rebound chamber pressure relief valve, mounted inside the piston and piston rod end, releases excess fluid pressure in the rebound chamber. A compression chamber pressure relief valve, mounted inside the intake valve assembly, releases excess fluid pressure in the compression chamber.

The application discloses a kind of multi-element heat fluid generator oilfield water treatment method, applied in oilfield water treatment technical field, the application is by being equipped with flow adjusting mechanism, shunt component can be connected with oilfield water quality pumping equipment, and oilfield water quality is transported, while it can provide space to oilfield water quality and multi-element heat fluid mixing after processing, flow sending component can be connected with multi-element heat fluid generator, and multi-element heat fluid can be transported into shunt component, anti-tracking component can intercept impurities in oilfield water quality, flow guide component can uniformly transport multi-element heat fluid into oilfield water quality, adjusting component can control the flow rate and flow of multi-element heat fluid transported by flow guide component, shunt component can cooperate with flow sending component, and multi-element heat fluid is divided into multiple uniform streams and transported into oilfield water quality, so as to improve the efficiency of multi-element heat fluid on oilfield water treatment.

A turbomachine is provided that is configured for using a fluid for cooling and sealing functions conducted by a fluid transport pipe (216) with a hollow wall portion sealed to maintain a vacuum therein for thermally isolating the sealing fluid flowing though the fluid transport pipe (216) from an environment external to the fluid transport pipe (216).

The utility model belongs to the technical field of medical equipment, and particularly relates to a peristaltic pump. Aiming at the problems that a roller in a peristaltic pump in the prior art only extrudes one side of a fluid hose, friction force on the hose is larger, and abrasion of the hose is accelerated, the utility model provides a peristaltic pump which comprises a motor and a driving shaft connected to the motor, and one end of the driving shaft far away from the motor is further in driving connection with a bidirectional extrusion assembly. An extrusion cavity used for containing a hose is formed in the two-way extrusion assembly, and extrusion pieces used for extruding the hose are located on the two sides of the extrusion cavity correspondingly. The pair of extrusion pieces are arranged to extrude the hose for fluid transportation, extrusion force on the single side of the hose for transporting fluid and corresponding friction force are reduced, the service life of the hose is prolonged, and the fluid transportation speed is increased.

This application provides a triboelectric self-sensing piezoelectric pump for drug delivery, a flow monitoring device, and a method, relating to the field of fluid transport and flow monitoring. A first friction part of a triboelectric sensor is disposed on an actuating component, and a second friction part is disposed on the inner wall of the pump body. When the actuating component vibrates to control the change in pump chamber volume, driving liquid to flow out through the inlet channel and pump chamber from the outlet channel, the first friction part passively follows the actuating component in synchronous vibration, synchronously changing the gap between the first and second friction parts. An electrical signal corresponding to the vibration of the actuating component is output from the second friction part, and this electrical signal can be calibrated as the corresponding liquid flow rate. This enables long-term, continuous, and accurate flow monitoring of wearable piezoelectric pumps, thereby improving the drug delivery safety and control accuracy of wearable piezoelectric pumps used in medical applications.

A fluid transport system, a fluid transport method, and a biochemical substance analysis device are disclosed. The fluid transport system includes a fluid storage module, a fluid usage module, a fluid distribution module, and a fluid drive module. The fluid storage module stores fluid. The fluid usage module includes multiple independent channels, each channel having one end connected to the fluid storage module via the fluid distribution module and the other end connected to the fluid drive module. The fluid distribution module selects the transport direction of the fluid. The fluid drive module generates driving force, causing the fluid in the fluid storage module to be independently loaded into each channel via the fluid distribution module. The fluid transport system of this application has a simple structure, low cost, and can realize the function of independently loading samples into each channel. It is also simple to operate and can achieve automated loading.

This invention discloses a method for extracting the equivalent permeability of multi-stage seepage paths in a pore network, comprising the following steps: S1, binarizing the images captured by the experimental testing equipment, executing the pore numbering module L to obtain pore regions with different numbers; S2, executing the directed graph generation module B to generate a directed connectivity matrix C. B S3. Execute the path search module W, using continuous repeatability as a constraint during path search. S4. Execute the penetration rate equivalence module P to determine the experimental calibration coefficient C. E By confirming the magnitude of seepage resistance and the range of equivalent permeability for each path, this invention can quickly solve key issues such as the applicable range of permeability and multi-layer fluid distribution for fluid transport (such as geologically sealed CO2 and displacement fluids for reservoir development) in heterogeneous geological bodies. It provides important guidance and support for the formulation of schemes such as well location / well network layout, layer combination, and quantification of recovery / storage volume for reservoir development or CO2 geological storage.

The invention discloses a liquid leakage detection method, device and equipment for a liquid cooling system and a storage medium, and the method comprises the steps: collecting multi-node operation data reflecting a fluid transportation state, and constructing a baseline network representing a normal coupling relation of a liquid cooling loop based on the multi-node operation data; when the baseline network has structural abnormity in a local area, determining a corresponding detected area, and applying controlled perturbation input to the detected area under the condition of satisfying thermal safety constraint of the energy storage battery system, so that a liquid cooling loop forms a recognizable dynamic response process; fluid response data of the detected area are collected in the dynamic response process, dynamic features are extracted and subjected to difference measurement with the baseline features, and a liquid leakage risk detection result is output. According to the invention, effective identification of the liquid leakage risk of the liquid cooling system can be realized under a complex operation condition, and the detection reliability and the early warning capability are improved.

The invention discloses a centrifugal test device for the migration research of water-sand mixed fluid, and the device comprises a material source box module which simulates the supply of a water source and a sand source, and carries out the dynamic monitoring of the state of the material source through a water pressure sensor, an earth pressure sensor and a displacement sensor; the sand-bursting channel module is formed by combining a transparent acrylic front plate and an aluminum back plate, and a water pressure sensor and a temperature sensor are embedded in the sand-bursting channel module to simulate the water-sand migration process in fractures with different geometrical shapes; the collecting box module is used for receiving the outflow water-sand mixture, a water pressure sensor is arranged inside to monitor the residual pressure of the outflow end, and a weighing sensor is arranged outside to calculate the fluid mass change of the water-sand mixture in real time in a high-g environment; and the data acquisition module is used for acquiring water pressure, stress, vibration, acceleration and temperature signals and acquiring sand accumulation behaviors and interface flow characteristics through image comparison and analysis. The device is adjustable in channel structure, controllable in hydraulic condition, diversified in monitoring means, high in test precision and suitable for various water inrush and sand inrush disaster mechanism research scenes.

The invention belongs to the technical field of biomedical materials, and discloses a composite dressing with a bidirectional fluid transport function and a preparation method and application thereof, the composite dressing is a three-layer Janus composite fiber membrane, and the composite dressing sequentially comprises a hydrophobic layer, a middle hydrophilic layer and a hydrophilic layer from the contact side to the far side; the one-way transmission index difference value delta R is 300-600%; the average pore size of the hydrophobic layer is 2-3 microns; the preparation method comprises the following steps: respectively preparing the hydrophobic layer, the middle hydrophilic layer and a spinning solution of the hydrophilic layer, adding the micromolecule active components into the spinning solution of the hydrophilic layer and / or the middle hydrophilic layer, constructing a three-layer structure through layer-by-layer electrostatic spinning, and then performing vacuum drying to obtain the composite dressing with the bidirectional fluid transportation function. According to the application, the composite dressing can be applied to biomedical scenes where body fluid management and medicine intervention need to be synchronously achieved. A two-way conveying platform is established, the limitation of one-way moisture guiding is broken through, structural parameters are controllable, and the performance can be accurately regulated and controlled.

The utility model relates to a high-flow-precision diaphragm pump cover structure and a miniature diaphragm water pump and relates to the technical field of fluid conveying devices.The pump cover structure comprises a cover body, a water outlet pipe, a water inlet pipe and a backflow piece, the water outlet pipe and the water inlet pipe are both fixedly connected with the cover body, and the backflow piece comprises a backflow part and a pressure control opening and closing part; a pressure stabilizing plate is arranged in the water outlet pipe, and a pressure stabilizing cavity is formed in the side, away from a water outlet of the water outlet pipe, of the pressure stabilizing plate. Under the condition that an external pipeline connected with the water outlet pipe is not blocked, after water flow enters the water outlet pipe, relatively stable internal pressure is formed in the pressure stabilizing cavity due to the existence of the pressure stabilizing plate, and the size of the internal pressure is determined by the size of the cross sectional area in the water outlet pipe blocked by the pressure stabilizing plate and is not influenced by the external pipeline. The same water outlet cross sectional area is matched with the same flow speed to determine the consistency of the water outlet amount, and therefore the pump cover structure can effectively improve the accuracy of controlling the fluid conveying amount.

To provide a fluid carrier device and a flow channel switching valve advantageous for accelerating switching speed regarding feeding of fluid by simple device configurations.SOLUTION: A valve body part 12 comprises: a common flow channel C0; a first valve flow channel C1; a second valve flow channel C2, and a third valve flow channel C3 connected with the common flow channel C0. A valve rotor 13 is rotatably arranged centering on a rotational axis Ar on the common flow channel C0. At least either of an angle to be formed by a part connected with the common flow channel C0 of the first valve flow channel C1 and a part connected with the common flow channel C0 of the second valve flow channel C2 on the basis of a rotational axis Ar, or an angle to be formed by a part connected with the common flow channel C0 of the second valve flow channel C2 and a part connected with the common flow channel C0 of the third valve flow channel C3 on the basis of the rotational axis Ar is less than 90 degrees.SELECTED DRAWING: Figure 1

It is disclosed an automatic and modular spraying system. The system comprises a spraying module comprising a housing (1) in which fluid outlet connectors (2, 3) are installed which are coupled to fluid transport pipes (4, 5) used to transport the liquid to be sprayed to a Venturi valve, that is responsible for generating a jet of spraying liquid. The system can also include a contention module (8, 9, 10, 11, 12, 13, 14) and a stabilisation module (15, 16, 17, 18), which are operatively connected to the spraying module in order to optimise the spraying process by favouring more precise control of the area to be sprayed and keeping the system in a predefined orientation and perfectly stable and levelled.

This invention relates to the technical field of deep well mining, and particularly to a real-time analysis and early warning method for true triaxial hydraulic fracturing test data. The method includes the following steps: acquiring multi-source monitoring data during the true triaxial hydraulic fracturing test, wherein the multi-source monitoring data includes mechanical property data, fluid parameter data, deformation monitoring data, and fracture evolution correlation data; assigning verification weights matching the test conditions based on the heterogeneous attributes of the mechanical property data, fluid parameter data, deformation monitoring data, and fracture evolution correlation data; and verifying the acquisition timestamps and range matching of each data point using the verification weights to generate a standard dataset. The real-time analysis and early warning method for true triaxial hydraulic fracturing test data provided by this invention can simultaneously capture the stress field, fluid transport, deformation state, and internal fracture evolution characteristics of rock samples, improving the comprehensiveness of rock sample condition characterization and solving the problem of one-sided condition perception.

The invention is suitable for the technical field of valve management and fluid conveying control, and provides a dynamic valve control method and system based on environmental awareness, and the method comprises the steps: obtaining a historical operation record of a water return system to which a target overflow water return regulating valve belongs, a plurality of historical samples consistent with the current operation background and the upstream mechanical vibration condition are screened out, and the current valve dynamic health index generated for the target overflow backwater adjusting valve is obtained. The method has the beneficial effects that the slurry deposition-scouring alternating effect is introduced into valve health state evaluation for the first time, the deposition-scouring alternating strength index is calculated by extracting the first local vibration signal of the adjacent area of the valve, and the valve scouring deterioration index is calculated by combining the second local vibration signal of the designated area of the valve; therefore, a critical point is identified, a correction factor is generated, and the valve dynamic health index generated in the prior art is corrected.

The application provides an extremely low temperature regulating needle valve, and belongs to the technical field of low temperature valves. The extremely low temperature regulating needle valve comprises a needle valve, a transport channel one reserved on the needle valve, a connecting block connected to the transport channel one, a pair of ring blocks movably arranged in the connecting block, helical beryllium copper wires fixed to two ends of the ring blocks, a through hole reserved on the ring blocks, a receiving opening reserved at one end of the ring blocks close to the outside of the connecting block, and a flow guide channel one arranged at the upper end of the receiving opening. The application solves the problem that the existing extremely low temperature regulating needle valve is easy to cause the volume of the transport channel two to increase or decrease due to temperature factors during the stage of connecting the transport channel two to transport fluid, so that a gap is generated between the transport channel two and the receiving opening, and the fluid transport efficiency of the extremely low temperature regulating needle valve and the transport channel two is reduced.

Flexible fluid transport pipe end fitting, flexible pipe and associated process The end fitting (14) includes an end arch, a hood (51) defining with the end arch a chamber (52) for receiving end sections (32) of armor elements (29) and an end region (36) of an outer sheath (30) and a rear anchoring assembly (57) of the outer sheath (30) relative to the hood (51). The nozzle (14) has a rear sealing assembly (56) between the cap (51) and the outer sheath (30), comprising: an outer ring (110) disposed between the outer sheath (30) and the cap (51); at least one external sealing gasket (112A, 112B) carried by the outer ring (110) and interposed between the outer ring (110) and the cap (51); at least one internal sealing gasket (114A, 114B) carried by the outer ring (110) and interposed between the outer ring (110) and the outer sheath (30). (See Figure 2 for abbreviations.)

This utility model relates to a fiber-reinforced composite polypropylene pipe. It solves the technical problems of insufficient stability in existing interlayer connections and easy wear and tear on the outer surface of the composite pipe due to particle erosion. It includes a hollow pipe body with an inner layer on its inner side, a middle layer on its outer side, and an outer layer away from the inner layer. A fixing structure is provided between the inner and middle layers, and between the middle and outer layers. The inner layer has several internally protruding ribs on its circumferentially inner side, and the outer layer has a wear-resistant surface on its circumferentially outer side, with wear-resistant parts on the wear-resistant surface. The advantages are: the fixing structure makes the pipe body structurally stable, enhancing the overall structural stability and mechanical strength of the pipe, and improving its resistance to deformation; the internally protruding ribs reduce resistance during fluid transport; and the wear-resistant parts on the outer surface of the pipe body resist friction and scratches from external objects, thereby effectively extending the service life of the pipe.

The invention discloses a throat-adjustable gas-liquid flow metering device and a use method. The throat-adjustable gas-liquid flow metering device comprises a throttling device, a data processing system, a differential pressure sensor, a pressure guide pipe, a pressure sensor, an upstream pipeline, a temperature sensor, a downstream pipeline and a data acquisition system. Wherein the throat diameter and length of the throttling device can be adjusted, the throttling principle and a deep neural network model are combined, throat structures at different angles are switched through an adjusting hand wheel, pressure, temperature and differential pressure information of different throat structure combinations is obtained, differential pressure signals and the square root ratio of gas-liquid phase density are substituted into a pre-trained prediction model, and a prediction result is obtained. And outputting a prediction result under each throat structure combination so as to realize the measurement of the mass gas content and the total mass flow of the two-phase flow. The measuring range is widened through the variable throat structure combination, the flow measurement precision is improved based on multi-throat combination data fusion, fluid conveying does not need to be interrupted in the flow measurement process, equipment investment is effectively reduced, and wide application prospects are achieved.

The utility model discloses a flow guide device for improving the flow state of heavy sediment, and relates to the technical field of fluid transportation. The buffering device comprises a buffering cylinder, an input pipe is communicated with the middle of the rear end of the outer wall of the buffering cylinder, an output pipe is communicated with the middle of the front end of the outer wall of the buffering cylinder, two first rotating frames are welded to the upper end of the inner wall of each of the output pipe and the input pipe, and first rotating shafts are rotationally connected to the opposite sides of the outer walls of each pair of first rotating frames. Turnover spiral blades are fixedly installed on one side walls of the two rotating shafts, and two impact plates are slidably connected to the inner wall of the buffering cylinder in a bilateral symmetry mode. The motor is started to drive the front overturning spiral blade and the rear overturning spiral blade to rotate, large-particle heavy materials deposited on the lower portions in the input pipe and the output pipe are spirally stirred through the rotating overturning spiral blades, the suspension standing time of the large-particle heavy materials in the pipeline is prolonged, the large-particle heavy materials at the bottom of the pipeline are prevented from being deposited and accumulated, and the large-particle heavy materials are prevented from being separated. And the fluid transportation efficiency of the pipeline is improved.