60 results about "Rotational flow" patented technology

A special valve device (500) for an infusion device (100), the special valve device (500) comprising: a special valve body (501) comprising a rotatable special valve (550) in an inner cavity of the special valve body (501), at least one inlet port (504) and at least one outlet port (505), wherein a flow control section (552) of the rotatable special valve (550) has a through-bore communicating with the at least one inlet port (504) and the at least one outlet port (505), wherein the valve port (509) has a valve retaining means (509a) therein; and the rotatable flow control section (552) with a through-bore for a medial flow path (560) therein, wherein the rotatable flow control section (552) has an outer surface (552a), wherein the through-bore for the medial flow path (560) has a first opening (561) to the outer surface (552a) and a second opening (562) to the outer surface (552a), wherein the outer surface (552a) of the rotatable flow control section (552) has a valve fastening means (509b) thereon, which is arranged to secure the rotatable flow control section (552) to the valve fastening means (509a) by means of a snap / latch connection, wherein the outer surface (552a) has a first conical groove (561a) communicating with the first opening (561) and a second conical groove (562a) communicating with the second opening (562), wherein the first and second grooves (561a, 562a) are arranged such that, when the rotatable flow control section (552) is rotated, they communicate with the at least one inlet opening (504) and the at least one outlet opening (505), wherein each of the first conical groove (561a) and the second conical groove (562a) has a groove tip (561c, 562c) and a groove end (561b, 562b) defining a curved groove bottom (561d, 562d), wherein the groove end (561b, 562b) has a substantially conical (tapered) groove opening (561e, 562e) which opens into an inner surface (560a) of the medial flow path (560), wherein the curved groove bottom (561d, 562d) of the groove end (561b, 562b) extends in a direction towards the respective opposite opening (562,561) is curved, wherein the rotatable flow control section (552) is arranged so that it can be rotated to close off fluid flow through the special valve body (501) or to adjustably regulate fluid flow through the special valve body (501) via the medial flow path (560).

The application discloses a single-hole rotational flow urea nozzle with geometrically induced vortex line cavitation, which comprises a ball valve, a valve seat, a rotational flow sheet, a flow converging sheet, an outer shell and a hole plate, the valve seat is fixedly connected with the inner wall of the outer shell, an annular protrusion is arranged in the valve seat, a through hole is arranged in the middle of the annular protrusion and is communicated with both ends of the annular protrusion, a sealing ball is arranged at one end of the annular protrusion, and the sealing ball is fixed at one end of the ball valve; the ball valve is movably connected with the inner wall of the outer shell, and a gap for fluid flow is arranged between the ball valve and the outer shell; the other end of the annular protrusion is sequentially provided with the rotational flow sheet, the flow converging sheet and the hole plate, the rotational flow sheet is abutted against the annular protrusion, and a plurality of rotational flow channels which are inclined relative to the axis of the rotational flow sheet are arranged on the rotational flow sheet; and the flow converging sheet is provided with a flow converging channel. The rotational flow sheet provided with the rotational flow channels cooperates with the flow converging sheet, so that the spray cone angle is smaller and the spray is uniformly distributed in the circumferential direction under the working condition of determining the flow of the nozzle.

The utility model discloses a novel surplus paste blow nozzle relates to battery plate manufacturing equipment field. This novel surplus paste blow nozzle, compressed air is into the air chamber through the admission valve tangentially, and the pressure fluctuation is reduced after cyclone deceleration, and the airflow is ejected from the front nozzle and rear nozzle in two ways, and is swept twice under the action of the front nozzle and rear nozzle, so that the residual rate of surplus material is lower, when the gas enters the cylindrical cavity from the tangent direction, the high-speed rotating flow field is formed, the rotating airflow gathers to the cavity wall under the action of centrifugal force, and the low-pressure cavity is formed in the central region, this process can effectively attenuate the pressure pulsation, and the fluid kinetic energy is converted into stable potential energy due to the rotation inertia, thereby the pressure fluctuation is inhibited, and the uniformity of blowing force through the nozzle body is guaranteed.

The application discloses a fresh water pump with noise reduction and vibration reduction, and relates to the technical field of fresh water pumps.The fresh water pump comprises a driving assembly, a pump body, a secondary impeller, a primary impeller, a steam elimination shell, a floating compensation assembly and a flow slowing assembly.The steady flow channel formed by the inner wall of the floating ring and the secondary rectification through the rectifier grid make the fresh water after flow slowing and pressure reduction further be guided to a relatively stable flow state, so that the deflection, rotational flow and local turbulence of the water flow before entering the primary impeller are reduced, and the vibration and noise caused by the unstable inlet flow state are reduced.When the primary impeller and the secondary impeller accelerate rotation and cause the instantaneous increase of the suction demand at the suction inlet of the pump body, the floating ring can slide towards the pump body under the action of the pressure difference, the blocking section is gradually separated from the compensation inlet, the compensation outlet and the compensation inlet are overlapped and communicated, and the fresh water in the compensation cavity is supplemented into the steady flow channel.The instantaneous low pressure in the steady flow channel is compensated, and the pressure stability of the front end of the suction inlet of the pump body is improved.

The present application relates to the technical field of aerospace engine, in particular to a liquid fuel engine thrust chamber needle bolt head regenerative cooling structure, comprising: a thrust chamber and a needle injection injector, the injector shell of the needle injection injector is arranged in the thrust chamber from the top of the thrust chamber, and the injector shell is located in the thrust chamber, at least one week main injection hole is arranged on the radial of the injector shell, the annular gap is formed between the injector shell and the top shell of the thrust chamber, and the end of the injector shell is provided with an inner recess structure in the thrust chamber; The first cooling flow channel and the second cooling flow channel are arranged in the injector shell above and below the main injection hole, and the outlet of the second cooling flow channel is connected with the rotational flow tangential hole; wherein, the liquid propellant in the propellant combination is injected into the injector shell, and the annular gap between the injector shell and the top shell of the thrust chamber is used for injecting another propellant in the propellant combination. The present application improves the combustion efficiency of the thrust chamber, and improves the specific impulse and the thrust-to-weight ratio of the engine.

The utility model discloses a kind of mixers for heat pump plate evaporator, including mixer main body, including connecting section, mixing section and rectifier section, the passage inside mixing section includes tapering speed-increasing section, arc throat section and gradual expansion pressure-increasing section;At least two spiral grooves are provided on tapering speed-increasing section, at least one spiral groove starts from the lower edge of the inlet and terminates at the upper edge of the outlet, and at least one spiral groove starts from the upper edge of the inlet and terminates at the lower edge of the outlet;The ratio of the length and the inner diameter of rectifier section is 3~5.The utility model can make gas-liquid two-phase in refrigerant uniformly mixed by tapering structure speed-increasing section tapering structure speed-increasing section and cooperate with the rotational flow shear of spiral groove;Meanwhile, by the cooperation of gradual expansion pressure-increasing section and rectifier section, the fluid radial force can be eliminated, to output flow state stable and two-phase distribution uniform refrigerant fluid, thereby improve the uniformity of refrigerant distribution between each passage of evaporator, improve heat exchange energy efficiency.

This invention discloses an emulsifier with a passive rotating turbulence component, belonging to the field of fluid mixing. It includes a pipe body, within which a flow-guiding rotating component, an annular baffle, and a snowflake turbulence component are coaxially arranged along the fluid flow direction. By setting a flow-guiding rotating component consisting of a two-stage flow-guiding component and a passively rotating swirl impeller coaxially arranged within the pipe body, the axial flow of the fluid is transformed into a deflected flow with a tangential velocity component. This improves the starting sensitivity of the swirl impeller and the efficiency of fluid kinetic energy conversion, enabling the swirl impeller to achieve stable rotation without external power, relying on the fluid's own kinetic energy. The original axial flow is transformed into a composite flow field coupling axial and rotating flows, significantly enhancing the local shear stress and flow field complexity, promoting the efficient breaking down and refining of large oil droplets. Combined with the multi-stage snowflake turbulence component after the flow-guiding rotating component, the emulsification effect is improved.

This utility model relates to the field of rotary joint technology, and in particular to a multi-channel rotary joint, comprising: a stationary part and a guide fluid connected to the stationary part; a fixed flow channel and a rotating flow channel are configured between the stationary part and the guide fluid, and a rotating body is rotatably connected to the outside of the guide fluid; the medium cavity is connected to the rotating flow channel, and the outside of the rotating body has an output port connected to the medium cavity. This utility model, by designing a fixed flow channel and a rotating flow channel inside the rotary joint, enables the medium to be transported from a stationary pipe to a rotating device, supporting the simultaneous transmission of multiple different media, and each channel is independent of each other and does not interfere with each other. When one end of the rotary joint is connected to a stationary pipe and the other end is connected to a rotating device, the medium enters the input port of the rotary joint under pressure, and then is transmitted to the corresponding part of the rotating device through the internal channel, realizing the supply of medium.

The application discloses a modularized turbine moving blade rotating flow and cooling test device, which comprises a test air inlet module, a test air outlet module and a test test module. The test air inlet module is provided with a pre-stage main air flow channel extending along a first direction. The test air outlet module is provided with a post-stage air outlet flow channel extending along the first direction. The test air outlet module and the test air inlet module are arranged at intervals in the first direction. One end of the test test module in the first direction is detachably connected with the test air inlet module. The other end of the test test module in the first direction is detachably connected with the test air outlet module. The test test module is provided with a test cavity, which is suitable for placing a test moving blade. The test air inlet module further comprises a guide vane, which is arranged in the pre-stage main air flow channel and adjacent to the test cavity. The guide vane can rotate around a second direction. The modularized turbine moving blade rotating flow and cooling test device has the advantages of more collected test data and lower test cost.

The application discloses a kind of adaptive mixed powder auxiliary electric spark machining system and method, including executing electric spark machining, and the processing subsystem of composite processing liquid injection into processing gap;According to the need of working condition, different particle size of mixed powder is selected, and composite processing liquid is formed by mixing with processing liquid clear liquid according to preset ratio;Mixed powder and working liquid clear liquid in waste liquid are separated, and recycling is recycled to the filtering subsystem of mixed powder subsystem;Mixed powder subsystem includes double-drive stirring mechanism, centrifugal force is generated by mechanical stirring, and the rotational flow stirring is formed by centrifugal force driving and pump liquid driving cooperation, rotational flow stirring and mechanical stirring cooperate, form the space circulation stirring flow along the axis of mechanical stirring shaft.The application cooperates with adaptive liquid supplement and adaptive double-drive stirring, enhances uniformity while effectively shortening non-uniform window period, to solve the contradiction between continuous processing production and mixed powder uniformity maintenance.

The embodiment of the present application provides a kind of annular rotational flow passage fuel atomization characteristic test device, it is related to combustion chamber fuel nozzle atomization test field.The purpose is to improve the problem that the observation of annular rotational flow passage fuel atomization characteristic is not comprehensive enough.It includes glass sleeve, rotational flow device, oil collecting ring and nozzle, the downstream of glass sleeve is used for atomization characteristic shooting observation;Rotational flow device is installed in the upstream of glass sleeve;Oil collecting ring is arranged in the middle of rotational flow device, annular rotational flow passage for oil-gas mixing is formed between the outside of oil collecting ring and the inside of glass sleeve, and oil collecting ring is provided with oil collecting cavity and nozzle communicated with oil collecting cavity.Laser sheet light illuminates annular rotational flow passage through glass sleeve, glass sleeve is arranged along the axial direction, camera and sheet light source are arranged to be synchronous along the axial direction, the atomization characteristics of fuel at different axial positions can be obtained, and finally three-dimensional distribution is formed, the atomization characteristics in annular rotational flow passage are observed comprehensively, and the test effect is improved.

The invention relates to a method for determining the flow rate and / or the differential pressure of a rotary fluid pump and to a control unit (300) for a rotary fluid pump (200), in particular a blood pump, wherein the rotary fluid pump (200) comprises a rotor (240), which is rotatable about an axis of rotation (500) for the purpose of conveying fluid, and a stator (220), which has a plurality of motor coils (221), and the control unit (300) is designed to: generate electrical drive signals which are applied to the motor coils; detect and / or determine phase current values and phase voltage values for one or more motor coils; determine the mutual induction voltage from the phase current values and the phase voltage values; detect and / or determine the rotational speed of the rotor; determine a mutual induction coefficient kv from the mutual induction voltage and the rotational speed; determine the torque of the rotor from the mutual induction coefficient and the phase current values; and determine the flow rate and / or the differential pressure of the rotary fluid pump taking into account the rotational speed and the torque of the rotor.

The utility model discloses a kind of filling head structures of penicillin bottle filling machine, it is related to penicillin bottle filling machine technical field, including filling head main part, the filling head main part output end is fixedly installed with filling pipe, the filling pipe output end is provided with rotating discharge component;The rotating discharge component includes fixed head, fixed pipe, waterproof bearing, fixed nut, meshing thread, rotating shell and several discharge pipes;In the technical scheme provided by the utility model, by setting rotating discharge component, specifically, when filling, filling pipe discharges, liquid is discharged by the discharge pipe of rotating shell side wall, under the reaction force of liquid discharge, rotating shell is rotated, rotating flow is generated in the process of canning, it is helpful that the component in solution is more evenly distributed in penicillin bottle, reduce the possibility of solution stratification or precipitation.

The application discloses a high-viscosity ionic liquid flue gas desulfurization system and method, which comprises an absorption reaction unit, the absorption reaction unit comprises a self-boosting supergravity reactor and an adjustable rotational flow jet reactor connected in series, a composite injection assembly and a vane angle self-adjusting flue gas deflector are arranged at the top of the adjustable rotational flow jet reactor, the composite injection assembly adopts a central injection peripheral impact structure and is arranged at the throat of the adjustable rotational flow jet reactor, the self-boosting supergravity reactor comprises a vane type porous rotor, a regeneration reaction unit and a solvent storage and conveying unit are arranged. The system can realize efficient dispersion of high-viscosity absorbents, low-energy-consumption gas phase mass transfer boosting, efficient and complete gas-liquid separation and precise control of system water balance, and realizes economic, efficient and stable ultra-low emission of coal-fired flue gas.

This utility model discloses a dispersion and feeding device for viscous liquids, relating to the field of mixing and feeding technology. It aims to solve the problem that existing feeding methods easily lead to material concentration in a certain area, requiring longer processing time to achieve a uniform state. A screen is installed inside the tank; the screen is annular, and an annular discharge trough is provided on the top surface of the screen. Multiple sets of screen holes are provided on the bottom surface of the discharge trough. A discharge mechanism is detachably installed at the bottom of the screen, and a loosening mechanism is slidably connected to the top surface of the screen. Through the discharge mechanism at the bottom of the screen, the discharge holes are blocked by the area between the screen holes when not in use. After the motor is started, the rotating baffle plate achieves annular feeding through the discharge holes. Compared to existing feeding methods, this design allows the material to be more evenly dispersed throughout the liquid, avoiding excessively high or low local concentrations. The rotating flow field itself has a mixing effect, accelerating the mixing of the material and the liquid.

The utility model discloses an improved high -pressure oil oil supply rotation assembly structure belongs to high -pressure oil oil supply rotation assembly technical field, including valve block, install rotation solenoid valve, open -and -close solenoid valve, shunt and rotation speed regulating valve on the valve block, through with the rotation solenoid valve and open -and -close solenoid valve integration to a valve block, and cooperate shunt and rotation speed regulating valve use, excavator high -pressure oil enters valve block IN mouth from the broken hammer pipeline, then divides into two -way supply rotation oil circuit and shunt oil circuit. Rotation oil circuit supplies rotation solenoid valve after through rotation speed regulating valve and rotates the flow to the flow required by rotation motor, through the coil of rotation solenoid valve two ends respectively energized can realize the commutation to rotation action. Another way supplies open -and -close solenoid valve, and open -and -close solenoid valve oil circuit can realize oil circuit 360 degrees arbitrary rotation and oil circuit's one divides into two through shunt, and supplies oil for open -and -close two oil cylinders.

The present application relates to gasification furnace technical field, provide a kind of feed pipe, nozzle and gasification furnace, the feed pipe includes main pipe (1) and sleeve pipe (2), the main pipe (1) has spirally extended first channel, for transporting first fuel, the sleeve pipe (2) is sleeved in the outer of the main pipe (1), and the inner side wall of at least part of the sleeve pipe (2) is spaced apart from the corresponding outer side wall of the main pipe (1) to be formed into spirally extended second channel, for transporting second fuel, so that the feed pipe can provide the rotational flow mixture formed by the first fuel and the second fuel.The present application solves the problem of poor reaction efficiency caused by the three nozzles of the corlins furnace in the prior art.

The application relates to the field of aerospace technology, in particular to a center rotational flow-double coaxial shearing injector. The center rotational flow-double coaxial shearing injector comprises a shell; a first channel for conducting a first propellant and a first channel and a second channel for conducting a second propellant are formed in the shell; the leading-out part of the first channel is formed between the first channel and the second channel; the application has three outlets, the outlet for conducting the first propellant is located between the two outlets for conducting the second propellant, that is, the two sides of the leading-out first propellant will be in contact with the second propellant and participate in the reaction; compared with the injector structure with two outlets in the prior art, the combustion area of the application is obviously increased, the combustion efficiency can be obviously improved, the length required for complete combustion is shortened, and the design length of the gas-gas combustion chamber when working under the conditions of large flow and significant deviation from the equivalent mixture ratio is shortened.

The application provides a nanoscale cavity generating device and a design method thereof, comprising a shell, an air inlet and a nozzle; a mixing chamber is arranged in the shell, a water suction chamber is arranged outside the mixing chamber, and the water suction chamber is used for communicating with a liquid medium; the mixing chamber and the water suction chamber are communicated through a guide hole, which is used for forming a rotational flow when the liquid medium enters the mixing chamber; the mixing chamber is provided with the air inlet, which is used for providing a gas medium into the mixing chamber; the liquid medium and the gas medium are mixed in the mixing chamber to generate nanoscale cavities; and the nozzle is arranged on the mixing chamber and used for outputting the nanoscale cavities. The mixed fluid of the application increases in speed after passing through the nozzle, and the mixed fluid leaving the nozzle directly impacts water wrapped outside the device, so that nanobubbles are formed under the impact and stored in the liquid.

The present disclosure discloses a push-operated water on-off and rotary flow-adjusting valve core, a push operation member (2) is used to drive a central rod (4) and a first sealing component to move between a first position and a second position; when the central rod and the first sealing component are at the first position, the first sealing component seals a communication between a water inlet (13) and the first flow passage, and the central rod cooperates with the second sealing component to close the second flow passage (14); when the central rod and the first sealing component are at the second position, the first sealing component opens the communication between the water inlet and the first flow passage, and the central rod disengages from the second sealing component to open the second flow passage; and a rotary adjusting member (3) is used to control the first sealing component to move between the second position and a third position through a linkage control mechanism to adjust a water outlet flow rate of the first flow passage when the central rod is at the second position. The present disclosure further discloses a shower, a shower controller and a faucet assembled with the push-operated water on-off and rotary flow-adjusting valve core.

The utility model relates to the technical field of dispersion machine discloses a dispersion machine for anticorrosion material production, including bearing mechanism, the bearing mechanism is slidably connected with the dispersion mechanism of opposite through telescopic mechanism, still include the linkage clamping mechanism for automatic clamping mixing bowl between the dispersion mechanism of opposite and bearing mechanism, the dispersion mechanism of opposite includes installation assembly, sets up the drive assembly on installation assembly, drive assembly is connected with conversion subassembly, and conversion subassembly is connected with first dispersion subassembly and second dispersion subassembly of turning opposite. The utility model has the advantages that: through setting the dispersion mechanism of opposite can form the reverse rotational flow to the liquid in mixing bowl, has improved dispersion effect, through setting linkage clamping mechanism can be beforehand to mixing bowl self -fixing before carrying out dispersion raw material, has dispensed with the separate fixing step, has improved dispersion efficiency.

A vaporizer device that utilizes suction to draw gas into the device and percolate the gas through a liquid contained within the device. The gas may be then directed through a chamber assembly equipped with a heat source, which vaporizes precursor composition held in a reservoir. The chamber assembly incorporates features to induce a rotational flow path, enhancing the mixing and aerosolization of the precursor compounds and selectively removing particles from an aerosol by modifying velocity and pressure of the flow. A heat exchanger system is included within the liquid container to ensure efficient thermal regulation of the aerosol before the aerosol may be inhaled. This abstract provides an introduction to the concepts disclosed herein and should not be used to limit the scope of the claimed subject matter.

The application discloses a glass blowing forming equipment and a use method thereof, a combustion device of the glass blowing forming equipment comprising a Venturi premixing unit, a rotational flow mixing cavity, an oxygen adding system and a multi-tube array type furnace head, high-temperature stable combustion is realized through a two-stage internal mixing and grading external mixing structure, and a tempering risk is avoided; and matched tools comprise a bull's eye wheel support and a multi-purpose blowing roller support, the bull's eye wheel support can adjust a blowing rod supporting state, and the multi-purpose blowing roller support can guarantee coaxial positioning of the blowing rod and a connecting rod. The application belongs to the technical field of glass processing, and specifically provides the glass blowing forming equipment and the use method thereof, solves problems of inability of traditional equipment to melt high-boron silicon glass, large volume, insufficient operation precision and the like, has the advantages of equipment miniaturization, flexible operation, wide adaptation range and the like, can reduce a glass art creation threshold, and expands a technical boundary and artistic expressiveness of a small furnace forming process.

This utility model discloses a copper-cased, brass-insulated distributor, relating to the field of distributor technology. The utility model includes a distributor body with a plurality of evenly spaced dispensing holes around its circumference. A shell is threaded onto the outer circumference of the distributor body, and an inlet end with an inlet hole is located at the upper end of the shell. A flow-dividing structure is installed on the distributor body. This utility model utilizes the funnel-shaped design of the inner wall of the dispensing end and the flow-dividing seat, along with a uniformly spiral-designed flow-dividing baffle, to force the refrigerant into a spiral rotational flow after entering the distributor. Centrifugal force is used to achieve uniform circumferential distribution. Combined with the symmetrical circumferential layout of the dispensing holes, this completely eliminates the flow difference caused by abrupt changes in the flow channel in traditional distributors, ensuring uniform refrigerant distribution to the capillary tube and improving the energy efficiency and cooling effect of the refrigeration system.

The present application belongs to the technical field of CO2 capture and gas-liquid reaction, and solves the problems of low efficiency, large equipment volume and ineffective heat recovery of the existing absorption technology. A CO2 absorption and heat recovery method based on centrifugal force field is disclosed. The flue gas containing CO2 is introduced into the tower in a rotating manner about the absorption tower axis to form an upward rotating gas flow. The absorption liquid is sprayed downward from the top of the absorption tower. During the downward process of the absorption liquid, it passes through the alternating arrangement of dynamic and static rotational flow layers. In the dynamic rotational flow layer, the absorption liquid collides with the rotating part and is torn into droplets or liquid membranes by centrifugal force. In the static rotational flow layer, the absorption liquid containing CO2 and the flue gas pass through the fixed guide vanes for deflection and separation. The purified flue gas is discharged from the top of the absorption tower, and the absorption liquid enriched with CO2 is discharged from the bottom of the absorption tower. The mass transfer efficiency is greatly improved, the equipment volume is significantly reduced, and the reaction heat and flue gas waste heat are absorbed in time.

To provide a defoaming machine that can efficiently eliminate foam. [Solution] The defoaming machine 100 eliminates foam generated on the liquid surface by the rotation of a defoaming blade 1. The defoaming blade 1 is provided with a foam flow path having an inlet 3 into which foam flows in by rotation and an outlet 4 into which the defoamed liquid is discharged. There is a portion between the inlet 3 and the outlet 4 in which the cross-sectional area of ​​the flow path is reduced, and the inlet 3 and the outlet 4 are opposite each other in the tangential direction of rotation.

The present application relates to drying equipment technical field, especially to a kind of drying equipment for traditional Chinese medicinal material processing, comprising: base, as the support of equipment;Outer cylinder part, it includes outer roller, the outer roller is rotatably installed in support part, the support part is arranged on the surface of base and is used to support outer roller, the inner wall of outer roller is surrounded with several outer pushers.This application adopts a set of driving part to drive outer roller and inner roller rotation, and realizes the elastic linkage of both through adapter, when hot air enters the inside of inner roller from hot gas inlet pipe, the rotation of inner roller drives helical guide plate to rotate, forces hot air to form the rotational flow opposite to the rotation direction of roller, so as to be evenly sprayed from each hot air hole, hot air must penetrate the material layer repeatedly scooped up, spilled by outer pusher and inner pusher, to be discharged from the moisture discharge port of outer roller, greatly prolongs the contact path and time of hot air and material.