110results about How to "Enhance swirl effect" patented technology

The invention discloses an array antenna for generating microwave orbital angular momentum based on a phase gradient super-surface. The array antenna is formed by the arrangement of phase shift units (1), each phase shift unit (1) comprises a dielectric plate (3), a metal patch (4) is arranged on the surface of the dielectric plate (3), an upper hole (5) is formed in the middle of the metal patch (4), a metal ground plate (6) is arranged at the bottom of the dielectric plate (3), a lower hole (7) is formed in the middle of the metal ground plate (6), and a metal pipe (8) is arranged at the middle of the dielectric plate (3) and communicates with the upper hole (5) and the lower hole (7). The array antenna has the characteristics of small size, light weight and low cost; meanwhile, the continuous control of the orbital angular momentum in phases of 0 to 2Pi is further achieved, and obvious vortex orbital angular momentum is generated; and moreover, the array antenna has an excellent reflection effect.

The invention discloses a juice extraction machine, which comprises a base, a driving unit, a container, a cover, a spiral extraction device and a juice extraction net, wherein the bottom wall of the container 30 is provided with a through hole and a residue outlet, and the peripheral wall of the container 30 is provided with a juice outlet. The cover 40 can be covered and connected onto the peripheral wall of the container 30 and is provided with a material input opening. The spiral extraction device 50 is arranged in the container 30, and the driving unit is connected with the rotating extraction unit 50 for driving the spiral extraction device 50 to rotate relative to the container 30 for realizing the juice extraction. The juice extraction net 60 is arranged in the container 30 and is positioned outside the rotating extraction device 50, the inner wall of the juice extraction net 60 is provided with a plurality of jade cutter ribs 61 capable of realizing the jade cutter effects, and the jade cutter ribs 61 are in inclined arrangement at intervals. The juice extraction machine has the following advantages that the jade cutter ribs are in inclined arrangement at intervals and are matched with the spiral extraction device, the extracted object vortex effect can be generated and enhanced, the extraction time number and the collision time number of the extracted objects are increased, the juice extraction rate is improved, the operation speed of the extracted objects can be accelerated, and the juice extraction speed is accelerated.

The invention relates to a two-way rotational flow cylinder type urea mixing device which comprises a nozzle base, a base supporting cover, a rotational flow pipe, a metal mesh ring, a supporting plate, a back rotational flow plate, a front rotational flow plate and a cylinder; the supporting plate is arranged inside the cylinder, a hole is formed in the front part of the supporting plate, the front rotational flow plate is installed inside the hole, the back rotational flow plate is installed at the rear part of the supporting plate, and the front rotational flow plate, the supporting plate and the back rotational flow plate form a mixing cavity inside the cylinder; the nozzle base, the base supporting cover, the rotational flow pipe and the metal mesh ring are sequentially fixedly connected from top to bottom, the base supporting cover penetrates through the hole in the cylinder and is fixedly connected with the cylinder, and the rotational flow pipe runs into the hole in the middle of the supporting plate to be fixedly connected with the supporting plate; the metal mesh ring stretches into the mixing cavity; the nozzle base, the base supporting cover, the rotational flow pipe and the metal mesh ring are inclined. On the condition of ensuring urea mixing uniformity, the crystallization problem that the urea decomposition efficiency is not high in an SCR system is solved.

The present invention belongs to the field of industrial waste gas purifying technology, and is one circular composite swirl-uniflow fluidizing device for fume desulfurizing fluidized bed. The fluidizing device includes an inlet fume channel, a Venturi tube, a reducing section and a desulfurizing barrel connected successively from bottom to top, and features that it includes also an inner sleeve installed inside the Venturi tube and a swirl fluidizing unit installed between the inner sleeve and the Venturi tube. Partial fume flows inside the inner sleeve and the rest flows in the swirl fluidizing unit, so as to form the composite fume fluidizing comprising the uniflow fluidizing inside the inner sleeve and swirl fluidizing outside the inner sleeve. The composite fluidizing device has simple structure, less gas flow deflection, high fluidizing effect, long grain retaining period, great inner circulation multiple and high desulfurizing efficiency.

The invention discloses a low shearing plunger type throttling valve used for oil production gathering and transporting. Based on a rotational flow agglomeration and unit mass energy dissipation rate control technology, orifices of a valve cage are designed to be in the tangential direction, a rotational flow chamber which is converged firstly and expanded afterwards is connected behind the orifices, the basic function of flow and pressure adjustment can be achieved on the plunger type throttling valve, meanwhile, the velocity gradient and the turbulence energy dissipation rate in a flow field are reduced, the shearing force of the orifices for fluid is reduced, the liquid drop breaking degree is lowered, and the subsequent oil water separation difficulty is lowered.

The invention discloses a phosphorization and phosphorization deslagging integrated device and process. The device comprises a main tank body, a conical tank bottom, an overflow tank, a filtering device, a liquid inlet and a liquid outlet, wherein the main tank body is positioned above the conical tank bottom; the liquid outlet is formed in the conical tank bottom; the overflow tank is arranged at one side of the main tank body; the liquid inlet is formed in the other side of the main tank body; and the filtering device is arranged at the lower part in the main tank body. The process comprises the steps of on-line checking, oil removal, washing, rust removal, washing, neutralizing, washing, surface adjustment, phosphorization, washing, washing, sealing treatment and drying. The phosphorization treatment in the phosphorization process step comprises the step of tank building, parameter test, adjustment of a phosphorization liquid and control and clearing of sediments. The device and the process are used for coating flow line production, so that phosphorization and deslagging integration is realized, and therefore, the device and process are novel.

The invention discloses a shaking table surface used for separation production of zircon sand. The shaking table surface comprises a feed chute, a water feed chute, table bars, table surfaces and table bar teeth. The table surface is rectangular, one corner of the rectangular table surface is the high end, the opposite corner of the corner is the lower end, the table surface is an inclined plane relative to the horizontal plane, the gradient of the plane is adjustable, the multiple table bars are arranged at intervals on the table surface from the corner of the high end to the corner of the lower end, the multiple table bar teeth are arranged at intervals from the middle to the two sides on the third to sixth table bars starting from the first table bar at the high end of the table surface, the interval is 25-50mm, and every table bar tooth is 10-15mm long, 4-8mm high and 4-8mm wide. The table bar teeth are arranged in the feed area, so that the eddy effect in the hydraulic jump process is enhanced, the efficiency of loosening and layering is improved, and mineral separation efficiency is improved. Magnetic bars are arranged on the back face of a table surface in a mineral discharging area, and therefore discharged valuable components in tailings are reduced.

The invention relates to a dual-swirl inclined cylindrical type urea mixer and application in an exhaust after-treatment device thereof, and belongs to the technical field of tail gas after-treatmentof diesel engines. The double-swirl inclined cylindrical type urea mixer comprises a Z-shaped partition plate, a swirl tube, a cylinder body, a nozzle base, a swirl plate, a blocking cover and a ureanozzle, the urea nozzle is mounted on the nozzle base, both of the urea nozzle and the nozzle base are obliquely mounted on the cylinder body; and the blocking cover and the swirl tube are welded intoa whole and obliquely welded to the Z-shaped plate. According to the application of the dual-swirl inclined cylindrical type urea mixer in the exhaust after-treatment device, the exhaust after-treatment device is in a cylinder shape, and sequentially comprises an air inlet pipe assembly, a DOC assembly, a DPF assembly, the double-swirl inclined cylindrical type urea mixer, a SCR assembly and an air outlet pipe assembly in the air flow direction. According to the double-swirl inclined cylindrical type urea mixer, two swirl devices are adopted, the mixing effect of urea and waste gas is ensured, and the crystallization risk of the urea is effectively reduced.

An existing flue gas dust removal device comprises a casing and an ash bucket arranged on the lower side of the casing, wherein an air inlet pipe is connected into a cavity of the casing from the upper side of the casing; an air outlet pipe is connected into the cavity from the upper side of the casing and extends to the bottom of the cavity; flue gas enters the upper part of the cavity from the air inlet pipe, rotational flow is formed and enters the air outlet pipe from an air outlet pipe orifice at the lower part of the cavity, and when the flue gas forms the rotational flow, relatively large particles in the flue gas are thrown to the wall of the cavity under the action of centrifugal force and discharged from an ash falling port in the lower end of the ash bucket. To solve the existing technical problem, the invention provides the cyclone type flue gas dust removal device. The device comprises the casing, the ash bucket, the air inlet pipe and the air outlet pipe and is characterized in that a fan is further arranged in the casing and supplies air from bottom to up, the air inlet pipe is arranged on the lower side of the fan, the air outlet pipe is arranged on the upper side of the fan, and a filter net is further arranged on the upper side of the air inlet pipe. Due to arrangement of the fan, the cyclone effect of flue gas in the cavity is better, and the flue gas dust treatment capacity is further improved.

The invention discloses a high-efficiency defogging device. The high-efficiency defogging device comprises a plurality of parallel defogging components; each defogging component comprises a gas riserpipe and an outer barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, the gas riser pipe II is fixed on a tray, and the gas riser pipe I and the gas riser pipe II are connected with each other by a bearing; the top of the gas riser pipe I is provided with an upper capping plate; the gas riser pipe I is circumferentially provided with a plurality of slits; and vanes arecircumferentially arranged on the gas riser pipe I at positions close to the slits. The high-efficiency defogging device of the invention realizes the separation of droplets from gas by multiple baffling, acceleration and scraping effect in the flowing process of fluids. The high-efficiency defogging device of the invention has the advantages of simple structure, small pressure drop, small possibility of scale formation, convenient installation, reduced mist entrainment and capacity of effectively realizing gas-liquid separation, and is especially applicable to occasions with large gas flow fluctuations.

The present invention relates to a filtering apparatus for filtering raw water containing various impurities and mixtures into purified water, and more particularly to a multistage filtering apparatus in which a rotor for generating vortex are installed in each of multiple layers of filtration membrane stacked within a closed barrel and the rotors are formed in multistage by having different diameter of each rotor so that the power for generating vortex can be remarkably minimized by generating the vertical vortex from top and bottom of the rotary rotor and the horizontal vortex from the outer side of circumference plate of the rotary rotor to be crossed over between membranes to prevent from blocking the pores or remove the deposited pollutants, and the closed-type barrel having multistage of membranes, rotary shaft, and rotary rotors for vortex generation within are constructed as a single module of filter pack, and the filter pack is connected and extended in accordance with required purified capacity so that large scale installation of filtering apparatus is possible.

A hanging type insulating device of a wet electric precipitator insulating box comprises an insulating cover, an insulating box base, an insulator, a hanging rod and a cyclone disc. The insulating cover is arranged on the insulating box base through a bottom disc flange. A conical hole is formed in the center of a bottom plate of the insulating cover, and the large opening end of the conical hole faces upwards. The cyclone disc is a circular ring. A plurality of air flues are evenly distributed on the circumferential wall of the cyclone disc. The air flues are inclined air flues with the large outer ports and the smaller inner ports and are consistent in inclination direction. The cyclone disc is arranged in the conical hole of the bottom plate of the insulating cover, is coaxial with the bottom disc flange and is arranged at the upper end of the bottom disc flange. The insulator is placed at the upper portion of the cyclone disc. An air inlet is formed in the top of the insulating cover. After entering a cavity of the insulating cover through the air inlet, the hot air enters the insulating box base through the air flues on the cyclone disc, and a backspin cyclone curtain can be formed after hot air enters the insulating box base; partition is formed for an insulating box base inner cavity where wet smoke invades, the short circuit between the hanging rod with high-voltage electricity and the cavity of the insulating cover so that electric conduction can be avoided, and the short-circuit access among the hanging rod, a gland and the insulating box base is blocked.

The invention discloses a rotational-flow-structure deodorizing floor drain. The rotational-flow-structure deodorizing floor drain comprises a floor drain cover, a large filtering net, a small filtering net, a floor-drain-core inner pipe, a floor-drain-core pulling ring, a floor-drain-core shell, a floor drain body and the like, wherein the floor-drain-core inner pipe is matched with the floor-drain-core shell, the floor-drain-core pulling ring is installed in the floor-drain-core shell, the floor-drain-core inner pipe, the floor-drain-core pulling ring and the floor-drain-core shell jointly form a floor drain core, the floor drain core is installed in the floor drain body, then the small filtering net is installed in an installing groove reserved in the top end of the floor-drain-core inner pipe, the large filtering net covers the small filtering net, the large filtering net is installed in an installing groove reserved in the center of the floor drain body, and the floor drain covercovers the floor drain body. According to the rotational-flow-structure deodorizing floor drain, the spiral-wall-structure water draining principle is adopted, water flow is drained through a rotational-flow wall during water draining, and the rotational-flow effect during water draining appears; rotational flow forms negative pressure to improve the water draining effect; meanwhile, the rotational-flow-structure deodorizing floor drain has the multiple-filtering-net structure easy to clean, and it is effectively reduced that as hair falls down on the floor drain core, the water draining performance is influenced.

The invention discloses a metasurface orbital angular momentum array antenna with good reflectivity. The array antenna is an array phase plate formed by arranging more than two phase-shifting units, each phase-shifting unit comprises a dielectric layer, the surface of the dielectric layer is provided with square annular metal patches; the bottom portion of the dielectric layer is provided with metal grounding layers, the array phase plate is divided into a first quadrant, a second quadrant, a third quadrant, a fourth quadrant, a fifth quadrant, a sixth quadrant, a seventh quadrant and an eighth quadrant in the clockwise direction, the superficial area of the metal patch in each quadrant is the same, and the superficial areas of the metal patches on the phase-shifting units in the first quadrant, the second quadrant, the third quadrant, the fourth quadrant, the fifth quadrant, the sixth quadrant, the seventh quadrant and the eighth quadrant are decreased in order. The metasurface orbital angular momentum array antenna has a very excellent incident wave reflection vortex effect, the reflection efficiency can reach more than 70 percent, and the metasurface orbital angular momentum array antenna has good energy transmission efficiency; in addition, the metasurface orbital angular momentum array antenna has the advantages of the simple structure, high utilization rate of unit areasof the phase-shifting units, the simple manufacturing process and the low cost.

The invention discloses a device and a method for preparing biodiesel. The device comprises a pipeline system, a reaction system and a measurement system, wherein the pipeline system comprises a raw material circulating storage box, a material circulating pump, an inflow pipeline, a return pipeline, an adjustable butterfly valve, and an unadjustable butterfly valve, the reaction system comprises a hydrodynamic cavitation reactor, a hydrodynamic cavitation porous plate, a striking room, and a motor driving rotating nozzle, and the measurement system comprises an upstream pressure gage and a downstream pressure gage as well as a flowmeter. Based on the coupling hydrodynamic cavitation and rotating impinging stream technologies, the device realizes efficient preparation of biodiesel. Circulating fluid flows through throttling holes in the porous plate inside the cavitation reactor, so that the cavitation phenomenon increases the turbulence intensity of the fluid, and the mass transfer area of an alcohol phase and an ester phase is greatly increased; the rotating impinging stream technology strengthens the tangential force in collision and enhances the cavitation effect on the collision surface; the device runs safely, has low running cost, can greatly improve the preparation efficiency of biodiesel, and shortens the preparation time of the biodiesel.

The invention relates to a concave-convex structure filter screen device of a range hood. The concave-convex structure filter screen device at least comprises a concave-convex structure filter screen and a filter screen frame, wherein a concave-convex structure of the concave-convex structure filter screen is formed by connecting a single or a plurality of strip-type convex sections with adjacent planar sections or adjacent curved sections, by connecting a single or a plurality of ring-shaped convex sections with the adjacent planar sections or the adjacent curved sections, or by arranging a single or a plurality of convex closures or lug bosses on a plane or a curved surface according to a certain rule; the concave-convex structure filter screen at least comprises any structure of a metal pore plate filter screen, a metal screen plate filter screen and a metal gauze filter screen, and a metal filter plate structure comprising flanging ventilation holes; the concave-convex structure filter screen is large in surface area and ventilation area, and is favorable for oil smoke purification and reduction of air loss; the three-dimensional ventilation holes of the concave-convex structure filter screen are favorable for separation, attachment, condensation and purification of oil smoke; and the concave-convex structure filter screen can ensure that the structural rigidity of the filter screen is multiplied, and is favorable for reducing the material consumption.

The invention relates to a vortex drainage type large pool floating object clearing device based on a cloud picture. The vortex drainage type large pool floating object clearing device comprises siphons, submersible sewage pumps, water spraying guns, water pumping pumps, clearing pools, controllers and controllable visual monitors; the clearing pools are partitioned into clean water areas and impurity collection areas through filtering screens; water inlets of the siphons are upwards formed in a pool, eddy accelerators are arranged at the water inlets of the siphons, water outlets of the siphons are formed in the impurity collection areas of the clearing pools, the submersible sewage pumps are arranged at the water outlets of the siphons, water inlets of the water pumping pumps communicatewith the clean water areas of the clearing pools, and the water outlets of the water pumping pumps communicate with the water spraying guns; and the water spraying guns are movably arranged at the top of the peripheral wall of the pool, the controllable visual monitors are arranged at the peripheral of the pool and connected with the input ends of the controllers, and the output ends of the controllers are connected with the submersible sewage pumps, the water pumping pumps and the water spraying guns correspondingly. According to the vortex drainage type large pool floating object clearing device, the pool is cleared automatically, the efficiency is high, and the clearing effect is good.

The invention relates to a method used for pneumatically spraying liquid especially such as colourant, enamel paint, paint, and the like and generating spray that is applied to an object, wherein the method is characterized in that a spraying device (1) is utilized. In the method, liquid basically departs from the spraying device (1) under zero pressure. Spraying air in the spraying device is formed through rotation at a first angle (14) relative to a longitudinal axis (6) of the spraying device and at a second angle (21) relative to an axes (22) perpendicular to the longitudinal axis (6) of the spraying device, so that spraying air can depart from the spraying device in a whirlwind manner. The first angle (14) ranges from 25 to 40 degrees, and the second angle (21) ranges from 35 to 55 degrees. Liquid is sprayed by spraying air after departing from the spraying device.

The invention relates to a combined pressure rotational flow open type water mist spraying head applied to a large cruise ship. The spraying head comprises a connecting part, a filter net cylinder, anozzle base and multiple nozzles, wherein the connecting part comprises a first cylinder part, a second cylinder part and a third cylinder part fixedly connected in sequence and all hollowed; multipleinclined holes are formed in the side wall of the first cylinder part; the filter net cylinder is reversely buckled on the first cylinder part through a tight matching mode for covering the first cylinder part on the inner side; the nozzle base is detachably connected with the third cylinder part, and is provided with multiple nozzle mounting holes; the multiple nozzles are correspondingly mounted in the multiple nozzle mounting holes; first conical holes near the nozzle mounting holes and second conical holes connected with the first conical holes are axially arranged in the nozzles; the diameters of the first conical holes are gradually reduced in a direction of leaving away from the nozzle mounting holes; and the diameters of the second conical holes are gradually increased in a direction of leaving away from the first conical holes. The spraying head conveniently mounts and replaces each part, conveniently stores wearable parts, and meanwhile, is large in coverage area sprayed bythe nozzles and excellent in fire extinguishing effect.

The invention discloses a urea mixing device. A partition is arranged between a front housing and a rear housing, a breaking plate is fixed to the partition, a front baffle is arranged on the front end part of the partition, an opening is formed in a part corresponding to the partition, of the front baffle, a flow guide plate and a hole plate are arranged on the opening, and an intake port is formed between the flow guide plate and an inner wall surface corresponding to the front housing; a blade opened inwards and towards an injection cavity is formed in the flow guide plate; a plurality of first through holes are formed in the hole plate; grating openings are formed in a wall surface facing the breaking plate, of the partition; and the rear housing is provided with a waist-reducing part.According to the urea mixing device, the plurality of grating openings are formed in the part facing the breaking plate, of the partition, and play a role of secondary breaking on urea drops, and more thorough atomization and volatilization for the urea drops are ensured, so that adequate mixing for mixed gas flow is much benefited, and higher mixing uniformity is achieved. The rear housing is provided with the waist-reducing part, and the flowing speed of the mixed gas flow while passing through the waist-reducing part, is increased, so that a better mixing effect and higher mixing uniformity are achieved.

The invention provides a combined gas and water separating device. The device comprises a housing which is provided with an opening in the upper part and a water draining port in the lower part, a solenoid valve which is mounted on the water draining port, a gas outlet and a volute gas inlet which cover the opening in the upper part of the housing and are independent from each other, an upper cover of a volute rotating chamber which is connected to the volute gas inlet, a sleeve which is coaxially positioned in the housing and is mounted on an upper cover in a manner of communicating with thegas outlet, and a filter element which is mounted at the lower part of the sleeve and is coaxial with the housing. The device integrates the functions of a cyclone separator and a filter element filter; flow guide blades are saved; and the device has the beneficial effects of being small in structure, small in pressure reduction, good in water separating effect, and flexible to mount.

An underwater anti-blocking and resistance-reducing elbow structure comprises an elbow as well as an inlet flange and an outlet flange which are arranged at two ends of the elbow; multiple spiral grooves are formed in a flow channel of the elbow in the length direction of the channel; and multiple pits are formed in the outer surface of a main pipe section and the outer surface of a switching section respectively. When the structure is used for conveying a particle-containing fluid in an underwater environment, the multiple spiral grooves are machined in the elbow to enhance the rotational flow effect of the fluid in the elbow, the particle-containing fluid rotates in the flow channel of the elbow, the rotational flow acting force is applied to particles, the particles are in the suspended state, deposition of solid particles due to the secondary flow effect of the elbow is avoided, and the particles are effectively prevented from blocking the elbow; and the surface pits are formed in the outer surface of the elbow, so that resistance produced by flow boundary layer separation is reduced.

The present invention belongs to the field of industrial waste gas purifying technology, and is one circular composite swirl-uniflow fluidizing device for fume desulfurizing fluidized bed. The fluidizing device includes an inlet fume channel, a Venturi tube, a reducing section and a desulfurizing barrel connected successively from bottom to top, and features that it includes also an inner sleeve installed inside the Venturi tube and a swirl fluidizing unit installed between the inner sleeve and the Venturi tube. Partial fume flows inside the inner sleeve and the rest flows in the swirl fluidizing unit, so as to form the composite fume fluidizing comprising the uniflow fluidizing inside the inner sleeve and swirl fluidizing outside the inner sleeve. The composite fluidizing device has simple structure, less gas flow deflection, high fluidizing effect, long grain retaining period, great inner circulation multiple and high desulfurizing efficiency.

The invention relates to an efficient feces separation device of a pond circulating water system. By means of the design of a conical dirt collection pond and a flow guide notch, the device effectively improves the swirling flow effect, so that solid waste finally settles in the dirt collection pond; an insertion pipe and a dirt discharge pipe form a communicating vessel which can control whether feces in the dirt collection pond can flow into a dirt discharge pond or not. The device is simple in structure, can effectively discharge residual bait and feces in a breeding tank, and can effectively solves the problems that residual bait and feces settlement causes ammonia nitrogen accumulation and harmful bacterium breeding and accordingly normal growth of bred objects is affected or even the bred objects are dead.

The invention discloses a non-splash-type winter coral recovery and separation protection device based on homogeneous principle vortex impact and belongs to the technical field of winter coral pickingmachinery, in particular to a device for non-splash protective recovery of juice of toxic plant fruit, and innovative combining of the homogeneous principle technical theory, mechanical stirring andthe vortex technology perfectly to realize complete separation of the winter coral pulp seeds by vortex impact. The non-splash-type winter coral recovery and separation protection device comprises a spray curtain blocking non-splash branch and leaf clamping non-destructive recovery mechanism, a reciprocating fit impact cutting self-positioning recognition type primary pulp seed separation mechanism, a homogeneous principle vortex energy impact type contradictory pulp-crushing complete separation mechanism and a pulp seed separation and loading box, the spray curtain blocking non-splash branchand leaf clamping non-destructive recovery mechanism is arranged on the pulp seed separation and loading box, and both the reciprocating fit impact cutting self-positioning recognition type primary pulp seed separation mechanism and the homogeneous principle vortex energy impact type contradictory pulp-crushing complete separation mechanism are arranged in the pulp seed separation and loading box.

The invention discloses a flue gas rotational flow device for flue gas desulfurization and a use method thereof. The flue gas rotational flow device comprises a fixing plate, supporting legs are fixedly connected to the four corners of the bottom of the fixing plate, a control panel is fixedly installed at one end of the top of the fixing plate, and a rotational flow box is fixedly connected to the top of the fixing plate, and the bottom of the rotational flow box extends to the bottom of the fixing plate. The flue gas rotational flow device is compact in structure, simple and convenient to operate and high in practicability, a plurality of rotational flow blades are arranged in the rotational flow box and matched with a driving ash removal mechanism, flue gas passing through the interior of the rotational flow box can be fully subjected to rotational flow operation, then the flue gas is subjected to demisting operation, and meanwhile, a dust removal mechanism and the ash removal mechanism are arranged to be matched with each other, dust removal operation can be rapidly conducted on the rotary knob blades and the interior of the rotational flow box, therefore the cleanliness of the surfaces of the rotational flow blades is guaranteed, the rotational flow effect is greatly improved, and actual use is facilitated.

The invention relates to an exhaust mixing device for hydrogen fuel cell automobile. The exhaust mixing device comprises a connecting pipe, one end of the connecting pipe is connected with one end ofa hydrogen mixer, and the other end of the hydrogen mixer is connected with an exhaust tail pipe; the hydrogen mixer comprises an outer cylinder body; a shunting pipe is arranged in the middle of theouter cylinder body, a front fixing ring is arranged in one end of the shunting pipe, a rear fixing ring is arranged in the other end of the shunting pipe, front swirl blades are arranged in the frontfixing ring, rear swirl blades are arranged in the rear fixing ring, one end of the outer cylinder body and one end of the front fixing ring are connected with a front end cover, and the other end ofthe outer cylinder body and the other end of the rear fixing ring are connected with a rear end cover. The hydrogen mixer is additionally arranged, and hydrogen and water vapor can be uniformly mixedwhen waste gas is exhausted, so that the overall hydrogen concentration is reduced; the hydrogen mixer adopts a double-swirl blade structure, so that the mixing capacity is stronger, and the generated swirl effect is more obvious; and a light plastic material can be selected to reduce the cost of the exhaust mixing device.

The invention provides a limit-level disconnection type double helix well bottom sand fluid mixing tubular column. The limit-level disconnection type double helix well bottom sand fluid mixing tubular column comprises a first-level oil tube and an n-level oil tube which are sequentially connected from the well opening to the well bottom. A plurality of double helix short sections and oil tubes are arranged between the first-level oil tube and the n-level oil tube. The double helix short sections and the oil tubes are alternately connected. The lower end of the n-level oil tube is sequentially connected with an upper double helix short section and an upper hydraulic ejector. The lower end of the upper hydraulic ejector is sequentially connected with a lower double helix short section and a lower hydraulic ejector. The lower end of the lower hydraulic ejector is connected with a retractable compensator. The lower end of the retractable compensator is connected with a bottom seal dragging fracture packer. According to the limit-level disconnection type double helix well bottom sand fluid mixing tubular column, a large amount of sand-carrying fluid at a high flow speed moves in a helix rotational flow state along a helix flow way, the effective sand concentration of the large amount of sand-carrying fluid flowing at the high speed is guaranteed, the stable state of the sand concentration of the sand-carrying fluid entering the upper ejector and the lower ejector of a multi-level clustering perforation is kept, and the perforating effect is improved.

The invention provides a throwing washing assisting device of a full-automatic cleaning machine. The device comprises a net barrel, wherein a rotating mechanism used for driving the net barrel to rotate is connected to one side of the net barrel, and a horizontal throwing mechanism used for driving the net barrel to move horizontally is connected to the side, opposite to the rotating mechanism, ofthe net barrel. The top of the horizontal throwing mechanism is connected with an up-down throwing mechanism used for driving the horizontal throwing mechanism to move up and down, a plurality of clamping rods arranged at equal intervals are arranged on the upper side of the outer wall of the net barrel, and a supporting edge is arranged at the top of the net barrel. The function of horizontal throwing is added, and the arrangement position and mode of a power output mechanism are changed, so that the problems that an existing throwing washing assisting device is single in washing assisting mode and poor in safety are solved.

The invention discloses a multistage demisting device. The multistage demisting device comprises a plurality of parallel demisting assemblies, each of the demisting assemblies comprises multistage risers and an outer cylinder, the multistage risers are multiple coaxial risers with the caliber gradually increasing from inside to outside, and the multistage risers are the risers of at least two stages; the outer cylinder is arranged at the outer side of the multistage risers, and is on the same axis with the risers; and the innermost layer riser of the multistage risers is the first stage riser,and the tops of all the risers gradually rise from inside to outside. A plurality of outgassing rectification passages are uniformly arranged in the circumference of the upper end of every riser, andthe rotation direction of the outgassing rectification passages of the risers is same to the rotation direction of the gas inflow rectification passages of the first stage riser. The multistage demisting device has the advantages of simple structure, small pressure drop, no scale formation, convenience in installation, reduction of mist entrainment, and effectiveness in realization of gas-liquidseparation, and is especially suitable for occasions with large gas flow rates and high demisting requirements.