19results about How to "Improve flow status" patented technology

The utility model provides a waste calcium carbide remelting and upgrading conveying device, which belongs to the technical field of conveying devices, and comprises a crushing chamber, a rotator arranged in the crushing chamber, two first rotating shafts rotationally connected in the rotator, two crushers fixedly connected to the lower ends of the two first rotating shafts, and two second rotating shafts rotationally connected in the two crushers. The two first gears are fixedly connected to the circumferential surfaces of the two first rotating shafts, the gear ring is fixedly connected to the interior of the crushing chamber, and the first gears are meshed with the gear ring. Meanwhile, powder calcium carbide directly reaches the furnace bottom through the inside of the electrode and does not make contact with a furnace charge layer, current shunting is eradicated, waste products are directly added to the furnace bottom after being powdered and can be rapidly reacted and fused with semi-finished product calcium carbide, and electric energy consumption is greatly reduced.

The application discloses a kind of composite pipe fittings first-in first-out injection molding structure, including a storage cylinder, the front of the storage cylinder is equipped with a rotating valve, the storage cylinder is equipped with a tubular bushing and a movable plunger, the plunger penetrates the bushing, a material injection port is arranged on the lateral wall of the storage cylinder, a pre-plastic component is arranged on the material injection port, an annular annular groove is arranged on the outer wall of the bushing, and the annular groove is matched with the material injection port, wherein the plunger is between a starting position and an end position, and the material injection port is located at the rear of the starting position. The composite pipe fittings first-in first-out injection molding structure utilizes annular runner, uniform feeding, good flow state, easy to remove air, solves the problem of residual material long retention decomposition and carbonization, and also solves the problem of product quality caused by the injection of degraded material into the pipe fittings, improves the material utilization rate.

The utility model belongs to the technical field of coating production, and particularly relates to a dispersion machine for epoxy resin paint production, which comprises a base and a mounting frame, a hydraulic cylinder is mounted on the base, a cross beam is arranged at the output end of the hydraulic cylinder, one end of the cross beam is rotatably connected with a stirring shaft, and a dispersion disc is arranged at the bottom of the stirring shaft; the mounting frame is arranged at the end, located at the stirring shaft, of the cross beam, a flow field mechanism is arranged on the mounting frame, the flow field mechanism comprises two arc-shaped adjusting blocks which are oppositely arranged, the adjusting blocks are in sliding connection with the mounting frame, the stirring shaft is located between the two adjusting blocks, and the two adjusting blocks are close to each other and away from each other through an adjusting part. At least two baffles are rotationally connected to the lower portion of each adjusting block, and the baffles are locked through locking pieces.

The invention discloses a spraying structure for a devolatilization device, which comprises an outer pipe, a conveying pipe and a nozzle, the outer pipe is tightly connected with an input pipe of circulating hot water through an auxiliary pipe, and is used for receiving the supply of hot water; one end of the conveying pipe is firmly connected to the outer pipe, the other end of the conveying pipe extends into the kettle body and is tightly connected with the spray head, and a spraying opening of the spray head is arranged downwards; the outer pipes and the sprayers are arranged in two sets, each set of outer pipes is provided with one set of sprayers correspondingly connected with the outer pipes, and the upper set of sprayers and the lower set of sprayers are arranged in a staggered mode in the spatial layout.

The utility model discloses a glass-lined reaction tank with built-in heat exchange baffles, and belongs to the technical field of glass-lined reaction tanks. Comprising a tank body, baffling heat exchange mounting holes are formed in the side wall and the bottom of the tank body, L-shaped baffling heat exchange devices are mounted in the holes through sealing connecting devices, a glass lining surface is arranged on the part of the outer wall located in the tank body, and a heat exchange medium inlet and a heat exchange medium outlet are formed in the two ends respectively. The sealing connection device comprises an installation cylinder, a guide-out cylinder, a sealing support and a sealing pressing cylinder, two or more polytetrafluoroethylene sealing rings are arranged between the sealing support and the baffling heat exchange device in a sleeved mode, and radial sealing is achieved through pressing of the sealing pressing cylinder. The baffling and heat exchange functions are integrated, the connection reliability is ensured through multiple sealing structures, meanwhile, detachable installation of the baffling heat exchange device is achieved, overhauling and replacement are convenient, damage to a glass lining layer in a traditional welding mode is avoided, and the heat exchange efficiency, use safety and maintenance convenience are remarkably improved.

The invention discloses a resistance-reducing turbulent flow rib structure in a wheel cover, and belongs to the technical field of automobile parts, the resistance-reducing turbulent flow rib structure in the wheel cover comprises a wheel cover body, a wheel brow is fixedly connected to the edge of the outer side of the wheel cover body, a wheel cover internal turbulent flow rib is arranged on the upper edge of the inner side wall of the wheel cover body, and the wheel cover internal turbulent flow rib and the wheel cover body are integrally formed in a compression molding mode. The top of the outer side wall of the wheel eyebrow is fixedly connected with a wheel eyebrow decorating part. An inner concave part is arranged at the top of the wheel cover body, and the inner concave part is of an arc-shaped concave structure; according to the wheel cover, the inner turbulence rib structure of the wheel cover is additionally arranged in the wheel cover body, so that the flowing state of air flow in a wheel cavity is improved, generation of vortexes at the inwards-concave position is greatly reduced, energy dissipation and air resistance in the vehicle running process are reduced, and the endurance mileage of a vehicle is increased.

The utility model discloses a flow-limiting orifice plate for a backflow pipeline of a nuclear power plant, relates to the technical field of transportation of fluid in a pipeline, and is used for solving the problems of violent vibration and noise of the pipeline caused by cavitation of an existing flow-limiting orifice plate for a pipeline of a safety facility system. The restriction orifice plate comprises an orifice plate and a handle arranged above the orifice plate, the pore plate is round, the thickness of the pore plate is 1 / 10-1 / 4 of the inner diameter of the pipeline where the pore plate is located, a round hole is formed in the middle of the pore plate, and a chamfer is arranged on one side of the round hole; the size of the chamfer is 1 / 2-2 / 3 of the thickness of the pore plate; and the flow-limiting orifice plate is mounted in the pipeline through an ASME standard flange. The flow state behind the pore plate can be improved by adopting the oblique-angle flow limiting pore plate, the pipe nozzle jet flow of the right-angle pore plate is changed into orifice diffusion flow, the lowest pressure P2 behind the pore plate can be further increased, the cavitation phenomenon behind the pore plate is weakened, and the cavitation performance of the pore plate is improved.

The utility model relates to aquatic products breeding equipment technical field especially fish breeding is with feed screening device, solved the feed screening device in the mixing process lack of effective stirring structure, leading to the feed component mixed uneven and the problem that the secondary screening mechanism is not set and causes the pelletization granule too big influence fish feeding. The device includes rotating frame and mixing bin, and the mixing bin sets up in the inner top of rotating frame, and both sides of mixing bin are with the inside rotation connection of rotating frame, and the one side top of rotating frame is provided with the rotating module for and the cooperation of mixing bin. The utility model discloses through the cooperation of stirring rod and cutting blade and realizes even mixing and crushing, and promotes the evenness of feed, and through the setting of screening bin and collecting bin carries out secondary screening and centralized collection to the feed after mixing, removes the caking and big granule.

This invention relates to the field of membrane separation process control technology, and provides a full-membrane method for concentrating and purifying iron phosphate by makeup water reuse regulation. The system includes a white material tank, a pre-concentration and washing unit, an intermediate white material storage tank, a washing and concentration unit, and a purified white material storage tank connected in sequence. It also includes a white material analysis module that uses solid content uniformity as a prerequisite check combined with conductivity distribution characteristics to determine the membrane inlet status into four types: normal material inlet, abnormal material flow, localized abnormal mixing, or overall high salt load. A membrane segment evaluation module assesses the effectiveness of makeup water using both desalination release degree and filtration impedance as dual indicators. Based on this, a tiered decision-making module determines the average makeup water strategy for the entire membrane segment or localized makeup water strategies and allocates makeup water to different membrane segments based on effectiveness. This system, through the coordinated control of accurate membrane inlet status identification and quantitative assessment of makeup water effectiveness, significantly reduces energy waste and concentration load caused by ineffective makeup water.

This invention discloses a pressurized oxygen-enriched burner based on adjustable ejector and wall micro-airflow synergistic drag reduction, belonging to the field of burners. It includes a burner body, primary air-coal duct, and oxidant supply system. Its core improvement lies in the inclusion of an ejector anti-clogging device within the primary air-coal duct. This device comprises a Venturi ejector, an adjustable external mechanism for dynamically adjusting the effective flow area at its throat, and a porous fluidized bed bushing embedded in the wall of the downstream easily clogged section. A closed gas chamber connecting to the gas supply pipeline is located on the outside of the porous fluidized bed bushing. This invention generates a controllable negative pressure at the throat through adjustable ejector to "macroscopically draw" coal powder, while simultaneously utilizing the pressure difference to create a "microscopic air cushion" through the porous bed bushing. This synergistic effect solves the technical problems of high coal powder concentration and easy clogging under pressurized oxygen-enriched conditions, improving combustion stability and load regulation capability.

The utility model provides a kind of pouring system, belong to preparation technical field. Including: sprue, it includes the first straight section with the second straight section of first vertical direction extension, and the second straight section is communicated and is provided with the bend section between first straight section;Anti-impact part, it includes the anti-impact cavity of second straight section connection arrangement, the bottom of anti-impact cavity is provided with refractory part, and the both sides of anti-impact cavity are respectively communicated and provided with the cross gate, and the filter part is arranged in cross gate;Inner gate, it is communicated and arranged with cross gate, and inner gate is used to be communicated with cavity;Advantage is that molten iron enters bend section after first straight section, can smoothly transition to second straight section, effectively reduce flow rate and improve flow state;The setting of anti-impact cavity and refractory part can prevent high-temperature molten iron from directly impacting sand, avoid causing sand mould damage or sand particle drop, significantly improve mould service life and casting surface quality.

The utility model discloses an oil pipe support relates to engine technical field, the utility model discloses a support body is fixedly installed on the engine air intake connector, and the support body is L type, and the first limit groove and the second limit groove are arranged on the support body, and the oil inlet connector is fixedly arranged in the first limit groove, and the oil return connector is fixedly arranged in the second limit groove, and the both ends of oil inlet connector and oil return connector are fixedly provided with the convex ring, the support body is fixed in the high engine to elevate oil inlet pipe and oil return pipe, and when the engine starts, the oil pump oil inlet pipe can provide fuel in time, and the oil return pipe stores fuel and prevents air from entering, which helps to improve the flow state of fuel in the oil pipe, forms the local low pressure oil circuit arrangement, improves the engine starting capacity, and the cooperation of convex ring, first hoop ring and second hoop ring can stably connect the rubber tube on oil inlet connector and oil return connector, preventing the rubber tube from falling off.

This disclosure provides a transition section structure, a combustion chamber testing apparatus, and a combustion chamber testing method. The transition section structure sequentially comprises a first pipe section and a second pipe section along the X direction. Along the X direction, the first pipe section sequentially comprises a first inlet end, a gradually expanding pipe section, and a first outlet end; the second pipe section sequentially comprises a second inlet end, a contracting wall surface, and a second outlet end. The flow channel cross-section of the gradually expanding pipe section gradually expands along the X direction; the contracting wall surface contracts inwards perpendicular to the X direction; the first inlet end provides a first flow channel cross-section; the first outlet end and the second inlet end are fixedly connected and provide a circular flow channel cross-section; the contracting wall surface and the second outlet end provide a second flow channel cross-section; the first flow channel cross-section and the second flow channel cross-section have definite shapes, and the shapes of the first flow channel cross-section and the second flow channel cross-section are different.

A high-low temperature gas mixer includes: a hot air distributor, which is a long cylindrical structure with uniformly distributed distribution holes in the lower section; hot air is input from the top end of the hot air distributor and output from the bottom end; a mixing chamber, with a process gas inlet at the bottom and an inverted L-shaped mixed process gas outlet at the top; the bottom end of the hot air distributor is inserted into the mixing chamber from the top of the mixed process gas outlet; square hollow steel sections are arranged at equal intervals on the bottom surface of the mixing chamber; a distribution brick layer is located at the bottom of the mixing chamber and is formed by vertically contacting the distribution bricks; the distribution bricks are vertically placed on the square hollow steel sections, and strip-shaped notches are provided on both sides of the bottom of the distribution bricks, which are in close contact with the upper end and side of two adjacent square hollow steel sections to achieve stable support; the distribution bricks have vertical honeycomb-shaped square channels inside to promote uniform gas distribution.

This application discloses a hot-dip galvanizing lifting device for guardrails, including a lifting assembly, multiple traction ropes, multiple swing assemblies, and multiple clamping assemblies. The clamping assemblies are connected to the swing assemblies, and are connected to the lifting assembly via the traction ropes. Each swing assembly includes a base, a rotating shaft, and a swing drive mechanism. The rotating shaft is rotatably connected to the base, and the swing drive mechanism is housed within the base and connected to the rotating shaft. Each clamping assembly includes a support seat, a lifting mechanism, a bearing seat, and a clamping mechanism. The support seat is fixedly connected to the rotating shaft via a connecting frame. The lifting mechanism is mounted on the support seat, the bearing seat is fixedly connected to the movable end of the lifting mechanism, and the clamping mechanism is pivotally connected to the bearing seat. This effectively improves the stability of the guardrail during lifting and the efficiency of hot-dip galvanizing. It also effectively removes residual impurities and bubbles from the guardrail surface, thus ensuring a tight bond between the zinc layer and the substrate and improving the protective performance of the guardrail.

The utility model discloses an anti-clogging C4 raw material pretreatment device for MTBE (methyl tert-butyl ether) production, which relates to the technical field of clogging prevention and comprises a feed pipe, a group of guide cylinders are arranged in an inner cavity of the feed pipe, and the guide cylinders are used for realizing drainage of C4 raw materials; the feeding pipe is connected with the guide cylinder through a buffer piece; a vibration assembly is arranged outside the guide cylinders and used for scattering C4 raw materials accumulated in the feeding pipe and preventing the C4 raw materials from blocking the inner walls of the guide cylinders, the C4 raw materials enter through the feeding pipe, the guide cylinders in the inner cavity of the feeding pipe are used for guiding the raw materials, the feeding pipe is connected with the guide cylinders through buffering pieces, and the vibration assembly is used for scattering the C4 raw materials accumulated in the feeding pipe and preventing the C4 raw materials from blocking the inner walls of the guide cylinders. When the raw materials are fed, the impact force during feeding can be buffered, the vibration assembly outside the guide cylinder works, the vibration is stably conducted to the inner wall of the guide cylinder through the buffering piece connected with the guide cylinder, the accumulated raw materials can be scattered in time through the vibration, the raw materials are mixed into the flowing raw materials again, and the inner wall of the guide cylinder is prevented from being blocked.

The utility model discloses a kind of helical baffle heat exchanger, including shell, heat exchange pipe, the heat exchanger further include helical baffle and center baffle component, the center baffle component includes first center baffle and second center baffle, first center baffle and second center baffle are arranged in helical baffle inside along the central axis of helical baffle, overflow hole is provided on first center baffle, second center baffle is not provided overflow hole, the size of first center baffle is greater than the size of second center baffle.Through setting center baffle component, medium in shell forms complex flow path in helical baffle inside, reduce the situation that dead zone is generated in helical baffle inside, and relative turbulence is generated with outside helical plunger flow, complex flow field is formed in heat exchanger shell, can guarantee under the premise that heat exchanger heat exchange performance is not reduced, substantially improve processing efficiency.

This invention relates to the field of polymer material synthesis and chemical reaction equipment, specifically to a high-efficiency flame-retardant polymer additive synthesis reaction device and method; it includes a main reaction pipeline, a feeding mechanism, an ultrasonic intervention mechanism, a self-smoothing diffusion mechanism, and a controller; the system transports materials through a servo motor and an external gear pump, and achieves stable diffusion in the pipeline through the linkage of a flexible bellows, a damping chamber, and a pressure relief valve; its core is to use a piezoelectric ceramic transducer to emit high-frequency ultrasonic waves, generating vibration and micro-cavitation effects in the boundary layer, destroying the physical entanglement of materials and inducing near-wall plug flow slippage; this invention completely eliminates the pipe wall retention and core flow of high-viscosity fluids without increasing mechanical shear force, avoids macromolecular chain breakage or thermal degradation, resolves the contradiction between mass and heat transfer deterioration and shear sensitivity, and greatly improves the uniformity of the residence time of materials in continuous polymerization reactions.