24results about How to "Improve flow uniformity" patented technology

The utility model discloses a liquid cooling plate which comprises an upper cover plate and a lower cover plate, and a main flow channel is formed between the upper cover plate and the lower cover plate; the water inlet nozzle is communicated with the water inlet of the main flow channel and is used for allowing a refrigerant to flow in; the water outlet nozzle is communicated with a water outlet, corresponding to the water inlet, of the main runner and is used for allowing a refrigerant to flow out; the heat exchange columns are arranged in the main flow channel, and the densities of the heat exchange columns in different areas in the main flow channel are different. According to the liquid cooling plate, the plurality of heat exchange columns are arranged, so that the structural strength of the liquid cooling plate can be enhanced, the contact area between a refrigerant and the flow channel wall can be increased, and the heat exchange efficiency is improved. Besides, the heat exchange columns with different densities are arranged in different areas, so that the flow distribution of the refrigerant in the flow channel can be optimized, the refrigerant is uniformly distributed, and the uniformity of the heat dissipation performance of the liquid cooling plate is improved.

The present application relates to the technical field of turbine double-sided array blade processing of an aero-engine, and particularly relates to a turbine double-sided array blade integrated forming electrolytic machining tool and method, through the continuous feeding of the left and right tool cathodes to the direction of the part to be processed at the same time, the double-sided array blade is simultaneously machined; the machining tool comprises a cathode clamping block, a tool cathode, a sealing device and a support seat device; a plurality of electrolyte input channels are arranged on the left and right sides of the support seat, the liquid of the electrolyte input channels passes through the flow blocking cavity of the sealing device, the electrolyte is integrated and then flows into the machining area, then flows to the current collection area arranged in the cathode clamping block through the built-in plastic insulation device of the tool cathode, and finally flows out of the electrolyte output channel. Through the double-sided multi-feature integrated forming electrolytic machining technology, the machining efficiency and machining precision can be improved; the electrolyte flow channel adopting the reverse flow type flow field design can effectively improve the uniformity of the flow field.

The utility model discloses a water-air intercooler capable of improving the heat dissipation effect, and belongs to the technical field of radiators. Comprising a heat dissipation core body which is provided with a plurality of gas channels and liquid channels which are arranged at intervals; the water inlet seal head and the water outlet seal head are arranged on the two sides of the heat dissipation core body respectively, the water inlet seal head is provided with a water inlet, the water outlet seal head is provided with a water outlet, and the two ends of the liquid channel are communicated with the water inlet and the water outlet respectively; and the fan cover is connected to the end face of the heat dissipation core body, an air guide channel is defined by the fan cover, and all the gas channels communicate with the air guide channel. The air guide channel is formed by arranging the fan cover and communicates with the gas channel, cooling air is effectively guided in a centralized mode, the problems that in a traditional structure, airflow distribution is uneven, and a heat dissipation blind area exists are solved, and the heat exchange efficiency is remarkably improved.

This invention discloses a display panel and a display device, belonging to the field of display technology. The display panel includes a first substrate, a second substrate, and a plasma layer disposed opposite to each other. The plasma layer includes at least a first channel and a second channel, and plasma containing color-developing particles is disposed in the first and second channels. In a first region of the plasma layer: the first channel includes at least a first sub-channel and a second sub-channel, which are adjacent to each other, interconnected, and both extend along a first direction; along a second direction, at least a portion of the second channel is located on the side of the first sub-channel away from the second sub-channel, and at least a portion of the second channel is adjacent to the first sub-channel; at least a portion of the second channel is located on the side of the second sub-channel away from the first channel, and at least a portion of the second channel is adjacent to the second channel. The display device includes the above-described display panel. This invention enables uniform distribution of the electrophoretic liquid in an electrophoretic display device, improving the display effect.

This utility model discloses a composite duct structure, belonging to the field of ventilation equipment technology. The composite duct structure includes an inlet duct and an outlet duct. Connecting plates are fixedly connected to both ends of the inlet and outlet ducts. Two clamping plates are engaged between the connecting plates at their closest ends. Opening slots are provided on the top of both sides of each clamping plate, and T-shaped clamping rods are installed within these slots. Return springs are installed on the outer periphery of each T-shaped clamping rod. One end of the T-shaped clamping rod passes through the clamping plate and engages with the corresponding connecting plate. Guide plates are installed inside the inlet and outlet ducts. This design effectively solves the problems of cumbersome installation, difficult disassembly, and easy damage to the duct or surrounding structure in traditional composite duct connection methods, as well as uneven internal airflow distribution and lack of effective filtration structures. It improves the convenience of duct installation and disassembly, reduces maintenance costs, and optimizes ventilation and air quality.

The present application relates to a kind of dish washer and its control method, dish washer includes cabinet, front side is open;Door body, can be movably arranged at the opening of cabinet, to open or close cabinet;Air inlet assembly, including air inlet pipe, located in the outside of cabinet, the air inlet pipe is equipped with with its inside communication air inlet and first air outlet;Fan, for driving airflow from air inlet to flow to first air outlet;Air outlet pipe, air inlet end is communicated with first air outlet, and the air outlet end of air outlet pipe is located in cabinet;Moving plate, transversely arranged and can be movably arranged in cabinet along front and back direction, the moving plate is equipped with air outlet hole, the air outlet hole is located in the flow path of the airflow that the air outlet end of air outlet pipe flows out, and airflow coverage area is large.

The utility model belongs to the technical field of bipolar plates, and particularly discloses a hydrogen fuel cell bipolar plate which comprises an anode plate and a cathode plate, the anode plate and the cathode plate are overlapped and attached, and a cooling inlet, an air inlet and a hydrogen inlet penetrate through one end of the anode plate and one end of the cathode plate. A hydrogen outlet, an air outlet and a cooling outlet penetrate through the other ends of the anode plate and the cathode plate, a wavy hydrogen flow channel is arranged on the front surface of the anode plate, the hydrogen inlet is communicated with the hydrogen outlet through the hydrogen flow channel, a throttling table is arranged in the hydrogen flow channel, a cooling flow channel is arranged on the back surface of the anode plate, and the cooling inlet is communicated with the cooling outlet through the cooling flow channel; an air flow channel is formed in the back surface of the cathode plate; the air inlet is communicated with the air outlet through the air flow channel. According to the utility model, the front surface of the anode plate adopts the design of the wave-shaped hydrogen flow channel, and the throttling table is arranged in the hydrogen flow channel, so that the flow efficiency and uniformity of hydrogen in the flow channel are improved, the effective contact between the hydrogen and an anode catalyst is promoted, and the power generation efficiency of the battery is improved.

The invention discloses a vacuum drying device. The vacuum drying device comprises a mounting cover, an inner cover and an extraction opening, a mounting space for accommodating a substrate is formed in the mounting cover, a plurality of uniformly distributed first air holes are formed in the mounting cover, the first air holes are communicated with the mounting space, and at least part of the first air holes are located above the substrate; the inner cover covers the mounting cover, the inner cover and the mounting cover are arranged in a spaced mode, a first cavity is formed between the inner cover and the mounting cover, the first cavity is communicated with the mounting space through the first air holes, and a plurality of second air holes which are evenly distributed are formed in the upper portion of the inner cover; an extraction opening is communicated with the second air hole and is positioned above the inner cover; and gas in the mounting space sequentially flows to the first gas hole, the first cavity, the second gas hole and the extraction opening. The upper air exhaust vacuum drying device is simple in structure and low in installation precision requirement.

The utility model discloses an oblique folding wave anti-blocking counter flow type cooling tower packing sheet with bonding points, and belongs to the technical field of cooling tower packing. The cooling structure comprises a group of transverse flow channel cooling structures and oblique flow channel cooling structures, the transverse flow channel cooling structure comprises a set of first protrusions, a vertical first channel is formed between every two adjacent first protrusions, and a set of first retention areas are arranged in each first channel. The inclined flow channel cooling structure comprises a group of second bulges, an inclined second channel is formed between the adjacent second bulges, and a group of second retention areas are arranged in the second channel; the first channels and the second channels are in one-to-one correspondence and staggered arrangement, and inclined flow guide planes are arranged between the first channels and the second channels. Based on the alternate structural design of the transverse flow channels and the inclined flow channels, the transverse flow channels can provide a larger contact area, so that cooling water can be in full contact with the surface of the filler, and the heat and mass transfer efficiency is improved; the introduction of the inclined flow channel provides flow paths in different directions for the water flow, so that the water flow can be more uniformly and stably distributed in the whole filler.

The invention relates to a crucible structure for growth of a low-carbon inclusion low-stress silicon carbide single crystal and a growth method, a seed crystal support, a TaC isolating ring and a flow guide filtering assembly are sequentially arranged at the upper part in the crucible from top to bottom, and the flow guide filtering assembly is composed of multiple layers of TaC microporous rings, a TaC microporous plate and a TaC flow guide cylinder from bottom to top; the multi-layer TaC microporous ring comprises at least two annular microporous rings which are coaxially arranged, and the inner diameter and the outer diameter of the lower-layer microporous ring are larger than those of the upper-layer microporous ring. The crucible structure disclosed by the invention is provided with the flow guide filtering assembly, the flow guide filtering assembly changes an edge flow field, carbon particles from powder graphitization are concentratedly deposited in an edge polycrystalline deposition area, the carbon particles in the powder are prevented from participating in crystal growth, and the silicon carbide single crystal with a low-carbon inclusion is obtained.

The utility model discloses a screw extrusion device for composite fibers, which comprises a screw extruder body, and the screw extruder body is provided with an extrusion pipeline; a feeding hopper is arranged on the extrusion pipeline, the feeding hopper is communicated with an inner cavity of the extrusion pipeline, a supporting frame is arranged in the feeding hopper, a disturbance rod is arranged on the supporting frame, a driving assembly is further arranged on the supporting frame, and the driving assembly is matched with the disturbance rod, so that the disturbance rod shakes in the feeding hopper to prevent material blockage; the feeding device has the advantages that the disturbance rod driven by the driving assembly is arranged in the feeding hopper and shakes in the movable hole of the supporting frame in a non-rotating mode, the bridging or arching phenomenon possibly formed in the feeding process of raw materials is actively destroyed, blocking of the materials in the feeding hopper is effectively prevented through dynamic disturbance, and the feeding efficiency is improved. And the flowing uniformity and continuity of the raw materials entering the extrusion pipeline are obviously improved, so that the stable operation of the extrusion process is ensured.

The utility model discloses a high -efficient centrifugal ventilator of boiler exhaust gas suitable for inflow distortion, including air inlet tank, air inlet tank one side is provided with anti distortion current collector, and anti distortion current collector one end communicates with air inlet tank, and anti distortion current collector other end is not into volute, and anti distortion current collector is not into volute one end outside and is provided with airfoil impeller. High -efficient centrifugal ventilator of boiler exhaust gas suitable for inflow distortion, through optimizing the airflow import flow state, effectively reduced the internal flow loss of centrifugal ventilator, thereby significantly improved the whole machine operating efficiency, especially in the design working condition vicinity efficiency promotion is more outstanding, provides an effective way for realizing the design of high -efficient energy -conserving centrifugal ventilator.

This invention relates to a hydrogen blending and combustion system with a hydrogen distribution component. The hydrogen pipeline is perpendicular to the main pipeline and positioned between the natural gas tank and the burner. The connection point between the hydrogen pipeline and the main pipeline is located between the natural gas tank and the burner. The key feature is that the hydrogen pipeline is horizontally positioned and contains a hydrogen flow equalization device. The hydrogen distribution component is a blade structure comprising multiple blades. The flow channels between adjacent blades are horizontal, and the flow area decreases progressively from bottom to top vertically. The burner with this hydrogen distribution component, through the spacing between the blades, ensures uniform hydrogen distribution, avoids uneven natural gas and hydrogen ratios in certain areas, improves combustion efficiency, and prevents accidents.

The invention belongs to the technical field of reactor simulation, and provides a numerical flow experiment-based reactor optimization method, system, equipment and medium, and the method comprises the following steps: establishing a three-dimensional model of a reactor; carrying out regional division on the three-dimensional model to obtain a plurality of flow field numerical calculation domains; collecting actual working conditions, and setting boundary conditions according to the actual working conditions; determining a flow field calculation model; calculating the flow field based on the flow field calculation model and the boundary condition to obtain the three-dimensional distribution of the air flow structure; and judging whether the velocity uniformity and the pressure uniformity of the symmetry plane meet the index requirements of the reactor or not, if not, adjusting the length or / and the direction of the spoiler of the reactor, and returning to the step of establishing the three-dimensional model of the reactor. According to the invention, the reactor can be designed and optimized based on flow field uniformity with high efficiency and low cost.

The utility model is suitable for the technical field of automobile brake, provides a kind of automobile brake cylinder body casting uses conical side face pouring type mould, including mould frame, the mould frame includes the horizontal setting fixed mould frame and movable mould frame, the fixed mould frame inside is close to movable mould frame one side and is provided with fixed mould, the movable mould frame inside is close to fixed mould frame one side and is provided with movable mould;The fixed mould is set to quadrangle structure, and its close movable mould one side is provided with fixed mould cooperation groove, the movable mould is set to quadrangle structure, and shape is adapted with fixed mould, and the movable mould top is close to fixed mould one side end and is provided with material handle shunt cone.This device solves the problem that the uneven flow rate of the metal liquid generated in the one-piece inner gate encounters collision and generates eddy current, which increases the internal stress of the metal liquid, ultimately affects the uniformity of the finished product, achieves pouring from the conical runner side, uniformly distributes the metal liquid to reduce the internal stress, improves the uniformity of the finished product, and facilitates subsequent removal of the gate.

The application discloses a waste gas filtering treatment device and treatment method for an incinerator, relates to the technical field of waste gas filtering, and comprises a dust treatment bin, one side of the dust treatment bin is provided with a waste gas channel, and the lower part of one side of the waste gas channel is provided with an air inlet. In the application, the air guide pipe realizes airflow directional guidance and dust preliminary filtering by means of the oblique cutting opening and the internal filter frame plate, reduces the subsequent load, and then the space multi-channel structure composed of the side flow plate, the sharp cone plate and the center U plate divides and rectifies the waste gas, optimizes the flow field uniformity, realizes pressure balance between regions through the flow guide holes, avoids local vortex or dead zone, and the key lies in that the inclined plate and the built-in cooling pipe form a high-efficiency heat conduction unit, the waste gas temperature is actively reduced, tar vapor is condensed into liquid, the adsorption felt on the air guide plate and the high specific surface area net structure of the adsorption plate synergistically act, and condensed tar and fine particulate matters are efficiently captured.

The utility model relates to the technical field of thermal management, in particular to a bionic liquid cooling plate high-efficiency heat dissipation assembly, which comprises a battery pack formed by arranging a plurality of battery units; the liquid cooling plate is attached to the bottom of the battery pack, the liquid cooling plate is composed of a back plate attached to the battery pack and a base plate fixedly connected with the back plate, a cooling liquid flow channel is formed in the base plate, and a water inlet pipe and a water outlet pipe which are communicated with the cooling liquid flow channel are arranged on the surface of the end of the back plate; the number of the positioning strips is two, the positioning strips are fixedly connected to the liquid cooling plate, and the two positioning strips are arranged on the two sides of the battery pack respectively; according to the bionic liquid cooling plate efficient heat dissipation assembly, by simulating the flow channel design of natural efficient heat dissipation structures such as veins and blood vessel networks, the flowing uniformity of cooling liquid in the flow channel is improved, and the common problems of flowing dead zones and uneven flow distribution in a traditional regular flow channel are effectively reduced; the problem of local hot spots of the power battery in a high-heat-density scene is effectively solved.

The invention discloses a flow field simulation optimization method of a fused salt electric heater. The method comprises the following steps: constructing a flow field domain geometric model of the fused salt electric heater; establishing a dynamic coupling model of molten salt density and viscosity physical property parameters changing along with temperature, and embedding the dynamic coupling model into the simulation framework; dividing the flow field domain by adopting an unstructured grid; setting boundary conditions and initial conditions of an inlet boundary, an outlet boundary and a wall surface boundary; carrying out iterative solution by adopting a fluid dynamics numerical calculation method; and a multi-dimensional flow field quality quantitative evaluation system is constructed, and the heater structure is optimized and adjusted based on an evaluation result. According to the flow field simulation optimization method of the fused salt electric heater, the change rule of the thermophysical property parameters of the fused salt along with the temperature is incorporated into a simulation framework, real-time bidirectional feedback of the thermophysical property parameters and the flow field parameters is achieved, and the problem of flow field distortion caused by fixed physical property parameters in traditional simulation is solved.

The invention discloses a preparation method of a light-weight low-tensile high-modulus polyester industrial yarn, which comprises the following steps of: tackifying a high-viscosity polyester chip by a solid-phase tackifying device, melting and extruding by a screw extruder, entering a spinning manifold, distributing the melt in the spinning manifold by a spinning component, and pressing into a porous spinneret plate to form a tow, sequentially cooling, oiling, drafting, heat setting and winding to obtain the low-stretch high-modulus polyester industrial yarn. The intrinsic viscosity of the high-viscosity polyester chip is 1.10-1.16 dL / g, the melting point is 257-265 DEG C, the specification of the chip is 2.35 + / -0.50 g / 100, the number of holes of a spinneret plate is 280f, the hole pitch of the spinneret plate is 0.96 cm, and the hole diameter is 0.8-0.99 mm. The industrial yarn produced by the method shows excellent characteristics of light weight, low stretching and high modulus, and completely meets the requirements of high-end rubber framework materials such as radial tires and the like on high-performance fibers.

This invention discloses an automatic control method for the sickle bend of a medium-thick plate rolling mill, belonging to the field of metal processing. The method includes billet heating and rolling, optimizing the steel rolling production scheduling principles and the roll crown configuration, dividing the work roll cycle into initial roll, intermediate roll, and final roll, and establishing scheduling principles for steel plate width and thickness. This invention significantly improves equipment stability and reduces the stock shortage rate.

The invention relates to the technical field of plastic nozzle processing, in particular to a processing technology of a plastic nozzle for mercury coating of a semiconductor capillary tube, which comprises the following steps: step 1, blank pretreatment: selecting a plastic blank to be processed for preheating treatment; 2, turning the outer diameter by a lathe, and clamping the pretreated blank on a numerical control lathe for turning the outer diameter; thirdly, the workpiece is clamped in a sequence turning mode, an inner hole is machined, and after the workpiece subjected to outer diameter turning is detached, the workpiece is clamped on a tool clamp of a horizontal machining center; and fourthly, burrs are removed. The processing technology has the effect of improving the production quality of the processing technology of the plastic nozzle in the processing process.

The application discloses a small-size curved end face gear electrolytic machining device, which comprises a cathode clamp, a tool cathode, an electrolyte through cavity, a workpiece axial positioning cavity I and a workpiece axial positioning cavity II, the cathode clamp is provided with an electrolyte rectification area, an electrolyte output channel and a communication hole, the lower end of the cathode clamp is used for connecting the tool cathode, the lower end of the tool cathode is provided with an end face tooth, and the upper end of the cathode clamp is used for being connected with a machine tool driving device; the upper end of the workpiece axial positioning cavity II is sequentially provided with the workpiece axial positioning cavity I and the electrolyte through cavity, the electrolyte through cavity is used for abutting against the cathode clamp and the tool cathode and inserting a workpiece blank, and the workpiece axial positioning cavity I is used for clamping the workpiece blank; and the side wall of the electrolyte through cavity is provided with an electrolyte input channel. The workpiece is formed by the tool cathode end face tooth, and defects such as tool wear in traditional mechanical cutting machining are avoided.

The application discloses a kind of high copper electrolytic device and method of arc convex rib type cathode plate, belong to nonferrous metal electrolytic refining technical field.The device includes electrolytic cell, anode plate, cathode plate and electrolyte circulating system;Cathode plate includes plate body, electrically conductive crossbeam and suspension part;Plate body front and back are provided with multiple parallel distribution's flow guide convex rib, flow guide convex rib extends along plate body height direction and section is trapezoidal;Plate body both sides are provided with inclined transition edge, and bottom is provided with arc flow guide groove;During electrolysis, electrolyte is sprayed from multiple spray ports in the bottom of electrolytic cell, and flows steadily from bottom to top along the vertical channel formed by flow guide convex rib and flow guide groove, and is discharged from top overflow to form internal circulation.The application increases effective electrodeposition area by cathode plate shape innovation, optimizes electrolyte flow field, suppresses concentration polarization and anode passivation, improves electrolytic efficiency, reduces energy consumption, and is convenient to operate.

This utility model discloses a plate heat exchanger with strong pressure resistance, including a heat exchange assembly, a top plate, and a bottom plate. The heat exchange assembly includes a first heat exchange plate and a second heat exchange plate. Corner holes are provided at the four corners of the top plate, the first heat exchange plate, and the second heat exchange plate. A first boss and a first recess are respectively provided at the two corner holes at the same end of the first heat exchange plate. A second recess and a second boss are respectively provided on the second heat exchange plate. A fixing post is provided between the two corner holes at the same end of the top plate. Several first ridges and first grooves in a parallel, alternating "I" shape are provided between the first boss and the first recess on the first heat exchange plate. The distance between two adjacent first ridges is less than the diameter of the fixing post. A second groove and a second ridge are provided between the second recess and the second boss on the second heat exchange plate. The plates at the fixing posts are connected by line contact, thus effectively improving the connection strength and pressure resistance.