2897 results about "Mixing chamber" patented technology

Systems, devices, and methods for beverage preparation in portions. Embodiments of the present disclosure include a beverage system including: a fluid feeder configured to discharge a fluid; an ingredient feeder configured to discharge one or more ingredients; a mixing chamber having a dispensing opening, the mixing chamber configured to receive the fluid and the one or more ingredients; a dispenser configured to control dispensing from the mixing chamber via the dispensing opening; and a controller or control circuit programmed to perform operations including: receiving from a user a selection for a beverage; and producing the beverage automatically in portions. Different portions of the beverage may include different target ingredients.

The utility model provides a pottery clay 3D printing device capable of mixing and conveying raw materials in a fixed proportion, which comprises a rack, a 3D printing device, a 3D printing device and a 3D printing device, wherein the rack comprises an accommodating chamber and a printing chamber which are arranged in an up-down structure; the raw material conveying mechanism comprises a plurality of conveying assemblies arranged above the rack, and the conveying assemblies are used for conveying different raw materials; the mixing and extruding mechanism comprises an extruding assembly which can be transversely and movably arranged in the containing cavity and communicates with the conveying assembly, the extruding assembly comprises a material mixing bin body, a mixing cavity is formed in the material mixing bin body and communicates with the raw material conveying assembly, a stirring assembly is arranged in the mixing cavity, and an extruding head is connected to the lower portion of the material mixing bin body; the printing platform is arranged in the printing cavity in a longitudinal sliding mode and used for bearing 3D printing products, raw materials are directly printed in a printer after being mixed, efficiency can be greatly improved, and the problem that ceramic clay materials are possibly poor in uniformity and stability due to long-term placement or in the transferring process can be solved.

The invention provides a 3He internal circulation device for a dilution refrigerator and the dilution refrigerator, and relates to the technical field of dilution refrigerators. The dilution refrigerator is provided with a mixing chamber and an evaporation chamber, the 3He internal circulation device comprises at least one pair of circulation main bodies and a driving mechanism, the at least one pair of circulation main bodies are arranged between a first-stage cold disc and a second-stage cold disc which are distributed at intervals in the vertical direction, the temperature of the first-stage cold disc is located in a first temperature zone, and the temperature of the second-stage cold disc is located in a second temperature zone; each circulating main body has a first state in which the circulating main body moves downwards to be in contact with the second-stage cold disc, is cooled to a second temperature zone and adsorbs 3He steam from the evaporation chamber, and a second state in which the circulating main body moves upwards to be in contact with the first-stage cold disc, is heated to the first temperature zone and releases the 3He steam to the mixing chamber. The driving mechanism is suitable for driving the two circulating main bodies in each pair to move in the vertical direction so as to be switched between a first state and a second state, and the two circulating main bodies are kept in different states so as to form a 3He steam inner circulating passage.

The utility model relates to the field of gas-liquid mixing, and provides a bubble generator and an ozone aerator, the bubble generator comprises an inlet connecting end, an outlet connecting end and a throttler assembly, an inlet of the throttler assembly is detachably connected with the inlet connecting end, an outlet of the throttler assembly is detachably connected with the outlet connecting end, and the inlet connecting end is connected with the outlet connecting end. The throttler assembly comprises at least two sets of throttling holes and mixing chambers, and the throttling holes and the mixing chambers are alternately arranged in the direction from the inlet connecting end to the outlet connecting end. And the inner diameter of the throttling hole is continuously reduced. The utility model relates to a flow restrictor assembly, which is used for solving the defect of low inflation efficiency in the prior art, a gas-liquid mixed flow enters the flow restrictor assembly with a plurality of groups of throttling holes and a mixing chamber through an inlet connecting end, and the inner diameters of the plurality of groups of throttling holes are sequentially reduced to carry out multiple times of pressurization, gas dissolving, pressure reduction and gas release to obtain bubbles with smaller diameters, such as nano-scale bubbles. By arranging different groups of throttling holes and mixing chambers, the diameter of generated bubbles is adjusted, the adding efficiency of ozone and other gases is improved, and energy consumption is reduced.

The invention belongs to the technical field of turbine engine design, and particularly relates to a turbine interstage combustion chamber supersonic cruise engine and a control method thereof.The turbine interstage combustion chamber supersonic cruise engine comprises a fan adopting a FLADE fan; the gas compressor is arranged behind the fan; the main combustion chamber is arranged behind the gas compressor; the high-pressure turbine is arranged behind the main combustion chamber and is connected with the gas compressor through a high-pressure shaft; the mixing chamber is arranged behind the high-pressure turbine and is communicated with the fan through an outer duct; the interstage combustion chamber is arranged behind the mixing chamber; the low-pressure turbine is arranged behind the combustion chamber and is connected with the fan through a low-pressure shaft; the spraying pipe is arranged on the low-pressure turbine; and after the injection valve is arranged on the high-pressure turbine, the injection valve deflects to the inner runner surface of the outer duct when the injection valve is opened, and deflects to the outer runner surface of the outer duct when the injection valve is closed.

A three-dimensional (3D) object production process comprising providing a thermoset printing apparatus comprising a mixing chamber to receive and mix at least a first reactive component and a second reactive component to provide a thermosetting material, an extrusion nozzle to deliver the thermosetting material to form a 3D object, at least one actuator coupled to the extrusion nozzle to move the extrusion nozzle when delivering the thermosetting material to form the 3D object, and a controller comprising one or more processors and coupled to the extruded thermoset printing apparatus, and depositing the thermosetting material to form the 3D object, wherein the depositing comprises depositing a first layer of thermosetting material and depositing an at least second layer of thermosetting material, wherein the beads of thermosetting material in the at least second layer are offset from the beads of thermosetting material in the first layer.

The utility model discloses a novel tetrahydrothiophene concentration measuring device, which relates to the technical field of tetrahydrothiophene detection and comprises a natural gas pipeline, the rear side of the natural gas pipeline is fixedly connected with an L-shaped pipeline I, and the rear end of an L-shaped pipeline III is fixedly connected with a gas mixing chamber. The rear side of the natural gas pipeline is respectively provided with a gas mixing chamber unit, a compressed air preparation unit, a natural gas decompression preparation unit, a sample gas detection unit, a control unit and a communication unit. Air and natural gas are mixed in equal volume, an aerobic detection environment is created, and the working principle of an electrochemical tetrahydrothiophene detector is matched; according to the electrochemical tetrahydrothiophene concentration detector, the tetrahydrothiophene concentration of the mixed gas is accurately detected, then the tetrahydrothiophene concentration of the natural gas is deduced according to the isovolumetric proportional relation, reliable working conditions are created for the electrochemical tetrahydrothiophene concentration detector, continuous measurement can be achieved, detection data are stable, repeatability is good, and precision is high.

The invention relates to the technical field of preparation and purification of phenolic resin, and discloses a phenolic resin impurity separation device for production, which comprises a filter chamber, an inner cylinder is fixedly mounted in the filter chamber, a steam clamping cavity is arranged between the inner wall of the filter chamber and the outer wall of the inner cylinder, and a mixing chamber is fixedly mounted on the upper side in the inner cylinder. A centrifugal cylinder is movably installed on the lower side of the interior of the inner cylinder, a filter screen is fixedly installed at the bottom end of the mixing chamber, a three-phase asynchronous motor is fixedly installed in the middle of the top end of the filter chamber, and the driving end of the three-phase asynchronous motor extends into the filter chamber and is fixedly provided with a movable shaft; and a spiral paddle is fixedly mounted on the outer diameter section, positioned in the mixing chamber, of the movable shaft. According to the invention, the period is shortened through temperature control, energy conservation and enhanced mixing, the purity is improved through multi-stage separation, the labor is reduced through automatic operation, the structure is exquisite, the adaptability is wide, and the phenolic resin impurity separation efficiency and quality are comprehensively improved.

The invention belongs to the technical field of flame-retardant coating preparation, and discloses a flame-retardant coating preparation device and a preparation method thereof.The flame-retardant coating preparation device comprises a reaction cylinder, a water inlet, a first discharging pipe and a mixing mechanism arranged in the reaction cylinder and further comprises a discharging assembly installed at the top of a cavity of the reaction cylinder; the discharging assembly comprises a discharging opening fixedly formed in the top of the reaction cylinder and a funnel, and the funnel is rotationally provided with a conveying roller. According to the scheme, a mixture of water and a solvent is injected into the reaction cylinder through the water inlet, meanwhile, the turbine and the mixing blades rotate through rotation of the motor, and the turbine rotates to convey a mixed solution in the reaction cylinder to the top of the mixing cavity through the main pipeline; and meanwhile, the powder raw materials and the mixed solution in the mixing cavity can be stirred and mixed at a high speed through rotation of the mixing blades, the mixed coating can be discharged through a second discharging pipe, operation is completed, and the situation that the powder coating is accumulated and agglomerated is avoided.

The embodiment of the invention discloses an ultrahigh compression ratio adjustable ejector and a variable working condition performance optimization design method thereof. The adjustable ejector comprises a nozzle, an adjusting cone, a suction chamber, a mixing chamber and a diffusion chamber, wherein working fluid is introduced into the nozzle, the adjusting cone is arranged at the throat part of the nozzle, and the fluid to be ejected is introduced into the suction chamber; the adjusting cone is formed by alternately and repeatedly connecting cylindrical surface sections and conical surface sections, and the adjusting cone can axially move; the method comprises the steps that the pressure of working fluid input into the adjustable ejector is monitored; when the pressure of the working fluid is changed between the first pressure and the second pressure, the adjusting cone is axially moved, and each cylindrical surface section directly faces the throat part in sequence, so that step type adjustment of the pressure of the working fluid is realized; when the pressure of the working fluid is changed between the second pressure and the fourth pressure, the adjusting cone is axially moved, and each conical surface section directly faces the throat part in sequence, so that the continuous adjustment of the pressure of the working fluid is realized; the mass flow of the ejected fluid in the adjustable ejector belongs to a preset range; the first pressure, the second pressure, the third pressure and the fourth pressure are gradually increased in sequence.

The invention relates to the technical field of bypass ventilation denitration systems, and discloses an intelligent bypass ventilation SCR (Selective Catalytic Reduction) coupling SNCR (Selective Non-Catalytic Reduction) denitration system which comprises a smoke chamber, a cyclone cylinder, a precise ammonia spraying system, an air mixing chamber, a cooling fan, a cold air valve, a dust collection chamber, an SCR reactor, an exhaust fan, a chimney, a stock bin, a bin pump, a compressed air system and an intelligent control system, the air inlet is connected with the smoke chamber, and the feed opening is connected with the bin pump. Under any working condition, NOx emission at a chimney outlet can reach the standard, the ammonia water consumption is lowest, the denitration effect is good, the investment cost is low, the problem that NOx emission of the kiln tail chimney is unstable and prone to exceeding the standard is solved, the catalyst abrasion and blocking risk can be greatly reduced, the catalyst dosage is small, the maintenance cost is low, and the method is suitable for industrial production. And long-term stable operation of the system is realized.

An extruder for an additive manufacturing machine has a first and second extrusion duct (6, 7) separated from each other; a first and a second feeding system (8, 9), configured to feed a first and a second material into the first and the second extrusion duct (6, 7); a first and a second heating assembly (10, 11) configured to heat the first and the second material so as to determine the melting of the first and the second material; a mixing chamber (12), which is configured to allow the mixing of the first and of the second melt material exiting from the first and from the second extrusion duct (6, 7); and a control unit (14), configured to independently control the first and the second feeding system (8, 9) and the first and the second heating assembly (10, 11).

The invention provides a textile sizing agent heat preservation mixing device, and relates to the technical field of textile sizing agent treatment. The device comprises a supporting base, a mixing bin, a driving motor, a main shaft transmission mechanism, a rotating seat, a bevel gear train, an electromagnetic suction seat and a constant-temperature liquid storage bottle, wherein the driving motor drives the rotating seat to horizontally rotate in the mixing bin through a synchronous belt; a transmission bevel gear on the rotating seat is meshed with a fixed driving gear to generate autorotation and drives a driven bevel gear, so that the liquid storage bottle realizes revolution and autorotation at the same time to form a three-dimensional spiral stirring track, and a heating cup seat is arranged at the bottom of the liquid storage bottle and is matched with a double-layer heat preservation mixing bin to realize constant-temperature maintenance of slurry; and the electromagnetic suction seat realizes tool-free quick disassembly through the cross-shaped limiting groove and the limiting block. The problems that in the prior art, stirring is uneven, energy consumption is high, and maintenance is inconvenient are effectively solved, and the slurry uniformity and the sizing efficiency can be remarkably improved.

A mixing valve including a body having first and second inlets, an outlet, and a mixing chamber. A first valve seat is located between the first inlet and the mixing chamber, and a second valve seat is located between the second inlet and the mixing chamber. A shuttle is moveable in the mixing chamber between the first and second valve seats and includes a first plug facing the first valve seat and a second plug facing the second valve seat. The plugs have trim surfaces that are one of, or a combination of, a fast-opening shape, a linear shape, and an equal percentage shape.

The invention belongs to the technical field of electric heating, and particularly relates to a waste heat utilization ejector coupled with a plasma generator, the waste heat utilization ejector comprises the plasma generator, a nozzle and a Laval pipe structure, the rear end of the nozzle is provided with a working fluid inlet, and the Laval pipe structure sequentially comprises a receiving chamber, a mixing chamber, a throat pipe structure and a diffuser from back to front. A front end opening of the diffuser is a mixed fluid outlet, the nozzle is located in the receiving chamber, an anode structure of the plasma generator penetrates through the rear end of the receiving chamber and is communicated with an inner cavity of the nozzle through a working fluid inlet, a driving fluid inlet is formed in the side face of the receiving chamber, and a front end opening of the nozzle faces the throat pipe structure. The diffuser is conical, and the size of the mixed fluid outlet is larger than that of the rear end inlet of the diffuser. According to the invention, the waste heat utilization efficiency can be improved while the heating area of the plasma is obviously increased.

The utility model provides a fluid flow measuring system of an ultrasonic flow meter, which at least comprises an ultrasonic flow meter with four or more sound channels, an embedded rectifier embedded in a fluid inlet of the ultrasonic flow meter, front-end straight pipe sections which are arranged at the front ends of the ultrasonic flow meter and the embedded rectifier and are not less than 5D in length, and the inner diameters of the front-end straight pipe sections and the front-end straight pipe sections are the same and are D; the embedded rectifier sequentially comprises a spiral flow generator, a straight pipe mixing cavity and a flow straightener in the flow direction of fluid. The space intersection angle O of the upper and lower end faces of the blades of the spiral flow generator and the intersection angle P of the blades and the outer wall of the inner rectification cylinder and the inner wall of the outer rectification cylinder are changed; meanwhile, the side length U and the wall thickness K of a regular hexagon rectification hole of the flow straightener are changed, it is verified that the embedded rectifier measures fluid through combination of a large amount of analog simulation data and single actual measurement verification experiment data, and the four-channel ultrasonic flowmeter can meet the fluid measurement precision of 1% under different turbulent flow conditions.

The utility model relates to the technical field of polyurethane spraying devices, in particular to a polyurethane spraying gun which comprises a gun body, a movable cavity is arranged in the gun body, and a material inlet gun body channel and a cleaning fluid inlet movable cavity channel are arranged on the side portion of the gun body. A mixing chamber is arranged in the movable cavity, and the front and rear ends of the mixing chamber are slidably connected with the movable cavity through sliding sealing pieces; a fluid inlet mixing cavity channel is formed in the side part of the mixing chamber, and a material spray head is arranged at the front part of the mixing chamber; the cleaning fluid inlet movable cavity channel is connected with a cleaning fluid pipe; the cleaning fluid pipe is connected with a liquid inlet pipe and an air inlet pipe; a good cleaning effect can be guaranteed, and residual materials are prevented from being attached to the gun head; and the residual cleaning liquid and the spraying raw materials are prevented from chemical reaction, and the use effect of the spraying raw materials is prevented from being influenced.

An axial fuel stage (AFS) injector includes a mixing member including axially elongated mixing chambers in fluid communication with a combustion liner of a combustor, and fuel injectors in opposing side walls of the mixing chambers. A high-pressure (HP) air injection member defines a set of HP air jets spaced from the inlet of each mixing chamber. A fuel plenum in the mixing member delivers fuel from a fuel source to each set of fuel injectors. Each set of HP air jets directs a HP air from a HP air source and, in some embodiments, to draw a low-pressure (LP) air from a LP air source to direct the LP air with the HP air into the inlet of a respective mixing chamber where fuel is injected. The axially elongated mixing chambers direct the air-fuel mixture into the combustion liner for combustion in a secondary combustion zone thereof.

A pressure regulating device includes an on-board storage tank, a mixing chamber, first and second lines, a recirculation line, a pressure sensor and a controller. The storage tank stores and supplies cryogenic fuel to a combustion chamber and includes a booster pump. The first line supplies cryogenic fuel in the liquid state and includes a pressurizing pump and a first regulation valve. The second line supplies cryogenic fuel in the gaseous state and includes a compressor and a first control valve. The recirculation line includes a second regulation valve and with a first heat exchanger. The pressure sensor detects the pressure inside the storage tank. The controller receives the pressure and controls the first and second regulation valves, the first control valve, the pressurizing pump, the booster pump and the compressor, as a function of a value of a setpoint pressure inside the storage tank.

The invention relates to the technical field of heat exchange equipment, and particularly discloses a composite mixed-flow air cooler with a peak device. The device comprises a shell, an induced draft fan, a medium transfer pipe, a water feeding pipe, a first adjusting valve, a water feeding tee joint, a second adjusting valve, cooling filler, an evaporation coil, an evaporation coil adjusting air inlet window, a cooling filler adjusting air inlet window, an air cooler adjusting air inlet window, a medium inlet, a circulating water tank, an air cooler, a fogging bed, an air mixing chamber and a cooling filler water distribution device. And the evaporation coil pipe water distribution device comprises a medium outlet and a water collector. The system has multiple operation modes, such as a peak operation mode, a summer operation mode, a spring and autumn combined operation mode, a water cut-off operation mode and an anti-freezing mode, and can meet different use scenes. And a mixed-flow type drop flow cooling and condensing technology and a condensing, recycling and reheating technology are originally created, so that multiple functions of saving water and energy and eliminating white fog are realized.

The invention discloses a working medium self-recovery organic working medium turbine without a horizontal split. The organic working medium turbine comprises a cylinder without the horizontal split, a whole-circle partition plate group and a rotating part, the rotating part is divided into three parts along the axial direction; the whole-circle partition plate set is divided into a plurality of whole-circle partition plates arranged at intervals in the axial direction. The whole circle of partition plates and the three parts are alternately assembled in the air cylinder without the horizontal split in a vertical installation mode, and the three parts are connected into a whole after being alternately assembled. The rotating part is provided with a sealing arm and a sealing shoulder to form a balance cavity, and the pressure of the cavity is set by adopting a balance pipe; the rotating part is connected with a mechanical seal at the shaft extension part of the air cylinder without the horizontal split; according to the mechanical seal, cold spacer fluid is adopted to wash a movable and static ring friction pair, and meanwhile, the cold spacer fluid is adopted to spray a gas-liquid mixing cavity to achieve cooling, and the spacer fluid of the mechanical seal leaks to a balance cavity, is isolated by a centrifugal pressurizing ring on a rotating part and is separated and recycled in a gas-liquid header. According to the invention, external zero leakage and self-recovery of the organic working medium are effectively realized.

The invention discloses a combustor and a stove. The burner includes: a base; the air distribution disc is arranged on the base and comprises an outer ring part and an inner ring part; the outer ring fire cover is arranged on the outer ring part, an outer ring gas mixing cavity is defined by the outer ring fire cover and the outer ring part, the outer ring fire cover is provided with a plurality of middle ring fire holes, the multiple middle ring fire holes are formed in the circumferential direction of the combustor at intervals, and the middle ring fire holes communicate with the outer ring gas mixing cavity; a plurality of flame stabilizing grooves communicating with the outer ring gas mixing cavity are formed in the surface, facing the central axis of the combustor, of the outer ring part, the flame stabilizing grooves are formed in the circumferential direction of the combustor at intervals, and the flame stabilizing grooves correspond to the middle ring fire holes in the direction parallel to the central axis of the combustor. According to the combustor, the flame stabilizing effect of middle ring fire can be improved, the combustion performance is improved, and the smoke concentration during combustion of the combustor is reduced.

The invention discloses an engine configuration using liquid hydrogen as a coolant and fuel and an overall design method, and relates to the field of aero-engines, and the engine configuration comprises an air inlet channel, a fan, a precooler, an air compressor, a main combustion chamber, a high-pressure turbine, a low-pressure turbine, a mixing chamber, an afterburner and an exhaust nozzle. Only the inner culvert airflow is cooled, on the basis of solving the difficulty of rotation limitation under the high Mach number working condition of the core engine, the problem of cooling capacity waste generated by precooling the outer culvert airflow is avoided, and the liquid hydrogen amount depends on the combustion amount needed by the main combustion chamber and the afterburner; therefore, the waste problem caused by the fact that the amount of liquid hydrogen needed by pre-cooling is larger than the amount of liquid hydrogen needed by combustion is avoided. According to the overall design of the engine, from the angle of flight / intake / launch integration, the size and performance parameters of an engine body are determined in a ground state based on the take-off task requirement of an aircraft, the size of an intake and exhaust system is determined in a cruise state based on the cruise task requirement of the aircraft, and a control rule is determined by the engine demand flow and the intake passage capture flow.

The utility model discloses a mixing device for steam and condensate water, which comprises a mixing cavity, a condensate water guide pipe is hermetically welded at one end of the mixing cavity, a mixture discharge pipe is hermetically welded on the other end face of the mixing cavity, a steam guide pipe is hermetically welded at the bottom of the mixing cavity, and the steam guide pipe extends into the mixing cavity. The position, close to the end face, of the mixing cavity is arranged in a chamfering mode, the steam guide pipe is arranged in an inverted-L shape, the end face of the mixture discharging pipe is connected into an external steam stripping system, end face connecting flanges are symmetrically and fixedly connected to the end face of the mixing cavity, and the two end face connecting flanges are welded to the condensate water guide pipe and the mixture discharging pipe in a sealed mode respectively. According to the utility model, the mixing cavity is additionally arranged at the mixing position of the steam and the condensate water, so that the scouring of the steam to the pipeline can be reduced, the service life of the pipeline is prolonged, the normal production time is prolonged, and the use efficiency of the steam is improved.

The utility model provides a water outlet device capable of discharging different water from the same hole. The water outlet device comprises a body, a water inlet assembly, a water distribution assembly and a water outlet assembly. The water distribution assembly comprises a water distribution body provided with a first water flow channel and a second water flow channel, and a switching piece used for communicating at least one of the first water flow channel and the second water flow channel with the water inlet assembly. The water outlet assembly is provided with a first water inlet hole and a second water inlet hole which are respectively communicated with the first water flow channel and the second water flow channel; the mixing cavity is simultaneously communicated with the first water inlet hole and the second water inlet hole; the water outlet assembly comprises a first water nozzle and a second water nozzle, and the first water nozzle and the second water nozzle are basically coaxial or basically parallel to each other; the mixing cavity is formed in the second water nozzle, the first water inlet hole is formed in the first water nozzle, and the second water inlet hole is formed in the second water nozzle.

The invention discloses a mixing and clarifying tank, a liquid level adjusting method thereof and a nuclide recovery and extraction system, which can adjust the liquid level of a two-phase interface in an overflow chamber by adjusting the air pressure difference between the overflow chamber and a clarifying chamber through an air pressure adjusting assembly, thereby avoiding the increase of maintenance workload of the mixing and clarifying tank due to the increase of mechanical moving parts. The mixing and clarifying tank comprises a clarifying tank body and a liquid level adjusting device. A sealing top cover is arranged at the top of the clarifying tank body, and the clarifying tank body comprises a mixing chamber, a clarifying chamber and an overflow chamber which are sequentially communicated from front to back; the overflow chamber is defined by a front heavy-phase flow baffle, a rear sealing baffle and a sealing top cover. The liquid level adjusting device comprises an air pressure adjusting assembly. The air pressure adjusting assembly is arranged in the overflow chamber and used for adjusting the air pressure difference between the overflow chamber and the clarifying chamber so as to adjust the liquid level difference between the highest liquid level in the overflow chamber and the liquid level of the two-phase interface in the overflow chamber, and then the liquid level of the two-phase interface in the overflow chamber is adjusted to the target liquid level.

The invention discloses a multistage intelligent adjustable rotational flow atomization granulation system and device, and belongs to the technical field of atomization granulation, the multistage intelligent adjustable rotational flow atomization granulation system comprises a first end cover and a second end cover, a roller is arranged between the first end cover and the second end cover, and spiral conveying blades are arranged on the inner wall of the roller; the mixing head is fixed to the first end cover, a mixing chamber is arranged in the mixing head, and multiple first spraying holes are circumferentially distributed in the end face; the liquid conveying pipe extends to the material mixing chamber along the axis of the gas conveying pipe, a plurality of nozzles are arranged at the tail end of the liquid conveying pipe, and the spraying direction of the nozzles is perpendicular to the gas conveying direction of the gas conveying pipe; and the sleeve is sleeved with the infusion tube and is provided with a spiral guide vane, so that the airflow is accelerated into a high-speed spiral shape in the contraction channel. Feed liquid and air flow are vertically collided and sheared, so that the turbulence mixing strength is enhanced, and the atomization uniformity is improved; the adjusting assembly switches the nozzles of different specifications through the rotating shell, and multi-stage crushing particle size adjustment is achieved.

The invention discloses a gas inlet structure, a gas supply system of a semiconductor process and a processing method. The gas inlet structure is positioned at the upper part in a reaction cavity, and comprises a first gas channel and a second gas channel which are respectively used for introducing first gas and second gas; a gas inlet of the gas mixing cavity is connected with the first gas channel and the second gas channel, so that the first gas and the second gas are subjected to primary gas mixing in the gas mixing cavity to obtain primary mixed gas, and the caliber of a gas outlet of the gas mixing cavity is smaller than that of the gas inlet, so that the primary mixed gas is subjected to secondary gas mixing when being output; the final mixed gas is obtained. According to the gas inlet structure, the mixing point of two kinds of process gas easy to react can be delayed, the situation that the two kinds of process gas are mixed and reacted in advance to generate solid particles in the conveying process is avoided, meanwhile, the gas mixing effect of delayed gas mixing can be improved, and therefore the film forming quality and reliability of equipment are guaranteed.

Disclosed are an emulsification device and a beverage machine having the same. The emulsification device includes a Venturi structure and a switching apparatus. The Venturi structure includes a first mixing chamber and a second mixing chamber. In a case that a first steam channel is communicated with a steam source, steam flows through the first steam channel into the first mixing chamber to produce a mixed fluid with a first temperature based on a Venturi effect; and in a case that a second steam channel is communicated with the steam source, steam flows through the second steam channel into the second mixing chamber to produce a mixed fluid with a second temperature based on the Venturi effect, and the first temperature is not equal to the second temperature. Different types of beverages may be obtained by using milk foam with different temperatures.

The invention belongs to the technical field of cells, and relates to a hydrogen ejector for a fuel cell, which comprises a mixing chamber, a buffer chamber, a jet flow gas inlet, a liquid discharge hole, an ejection chamber and a plurality of jet flow holes, one end of the first nozzle is located outside the buffer chamber, the other end of the first nozzle penetrates through the side wall of the buffer chamber and then is located in the injection chamber, the part, located in the injection chamber, of the first nozzle is of a gradually-shrunk tubular structure, and a plurality of first arc-shaped rotational flow grooves are evenly formed in the position, close to the gradually-shrunk tubular structure, of the side face of the first nozzle in the circumferential direction of the first nozzle; each first arc-shaped rotational flow groove is formed in the length direction of the first nozzle, and the positions of the multiple first arc-shaped rotational flow grooves correspond to the positions of the multiple jet flow holes in a one-to-one mode. According to the invention, unreacted hydrogen entering the injection chamber can form rotational flow, so that water vapor is separated under the action of centrifugal force, the content of the water vapor in the unreacted hydrogen is reduced, the water logging phenomenon caused by the fact that excessive water vapor increases the resistance of the hydrogen entering an electrode is avoided, and the performance of the fuel cell is improved.