362results about How to "Reduce turbulence" patented technology

The utility model relates to the technical field of gas guiding of gas shielded welding guns, in particular to a gas guiding assembly of a gas shielded welding gun, which comprises a gas inlet pipe, a contact tube arranged at one end of the gas inlet pipe and gas dispersing holes arranged on the side wall of the gas inlet pipe. The side wall of the flow dividing sleeve is provided with a plurality of flow dividing holes, the inner wall of the flow dividing sleeve is provided with a vent groove, the flow dividing holes are communicated with the vent hole through the vent groove, the air inlet pipe is sleeved with an insulating cylinder, one side of the insulating cylinder is provided with a spray pipe, a spiral blade is sleeved with the spray pipe, and the spiral blade is arranged on the air inlet pipe in a sleeved mode. And the shunting hole and the contact tube are positioned in the spiral blade. The utility model provides a gas guide assembly of a gas shielded welding gun, which can reduce turbulent flow formed in a welding area, improve the welding quality and conveniently clean welding slag, and is used for overcoming the defects in the prior art.

The improved high-performance fire pump comprises a centrifugal impeller, a volute, a rotating shaft and a motor, the centrifugal impeller comprises a rear disc, a front disc and blades, and the inner side of the rear disc is provided with a first plane; the impeller is characterized in that the blade comprises a main blade part and a small blade part which are integrally formed, the main blade part is provided with a main blade front edge, the rear edge of the small blade part is repeated with the main blade front edge, and an included angle a is formed between the top edge of the small blade part and the first plane; the included angles a between at least more than 50% of the top edges in the plurality of small blade parts and the first plane are not equal, and the included angles a are equal to 1-15 degrees. Through the design of the small blade part, turbulent flow or backflow and secondary flow at the blade inlet in the impeller cavity can be reduced, the anti-cavitation performance of the fire pump can be improved, and therefore the hydraulic performance and efficiency of the fire pump can be improved.

The utility model provides an unmanned aerial vehicle aerial survey landing platform which comprises a platform assembly and a clamping mechanism, and the platform assembly comprises a platform base, a wind passing plate and an unmanned aerial vehicle body; wherein the air passing plate is fixedly connected to the top of the inner side wall of the platform base, and the unmanned aerial vehicle body is arranged above the platform base; the unmanned aerial vehicle and the landing platform are connected through the positioning and guiding mechanism, so that when the unmanned aerial vehicle lands vertically, the unmanned aerial vehicle is pulled and guided through the positioning and guiding mechanism, the influence of backflow and turbulent flow on the attitude of the unmanned aerial vehicle is reduced, and the stability of the unmanned aerial vehicle is improved; air flow generated during vertical landing of the unmanned aerial vehicle can be guided through cooperation of the air passing plate and the platform base, so that backflow and turbulent flow generated during landing are reduced; the electric push rods drive the clamping plates to clamp and fix the unmanned aerial vehicle landing to the designated height, direct contact between the unmanned aerial vehicle and the landing platform is prevented, and the landing stability is improved.

The invention relates to the technical field of glycerol triacetate preparation, in particular to an esterification phase splitter for preparing glycerol triacetate, which comprises a tower tray arranged in a rectifying tower, umbrella-shaped covers are uniformly distributed on the upper surface of the tower tray, and the tower tray comprises a movable tray, a fixed tray, a riser and an adjusting mechanism. By optimizing the structure of the umbrella-shaped cover and the design of the adjusting mechanism, the problems of a viscous layer and entrainment caused by high viscosity of glycerol triacetate are solved, by reducing the diameter of the bottom of the umbrella-shaped cover and reducing the comprehensive height of the overflow weir, the liquid flowing space is enlarged, the liquid retention time is shortened, and by forming an air inlet groove and an adjusting hydraulic oil cylinder, the liquid retention time is shortened. The gas-phase flow area is increased, gas-liquid contact is optimized, entrainment is reduced, through adjustment of the hydraulic oil cylinder, adaptation to the requirements of different reaction stages is achieved, the height of the downcomer is increased, and the flooding risk is reduced.

The invention discloses a circumferential air inlet gas spiral-flow type atomizing nozzle, and aims to solve the problems of disordered air flow distribution and unbalanced pressure in a gas storage cavity of an existing atomizing nozzle so as to improve the atomizing efficiency and the powder quality. Comprising an upper cover, an air inlet disc and a base, the upper cover and the air inlet disc are matched to form an air inlet cavity for circumferential air inlet and a circular seam outlet, an air inlet channel is arranged in the circumferential direction of the air inlet cavity, and three guide blades are arranged at the lower end of the upper cover at equal angles and used for guiding the airflow direction; in addition, a metal liquid flow channel is formed in the center of the upper cover, and a base groove is used for containing an air inlet pipe and fixing a nozzle. By arranging the circumferential air inlet channel and the guide vanes, gas flows in a vortex shape, the mixing efficiency is improved, vortexes and dead zones are reduced, pressure balance in the cavity is achieved, rotating airflow with high impact force is formed, and the atomization effect is optimized; by improving the structural design of the atomizing nozzle, the particle size uniformity and sphericity degree of atomized powder are remarkably improved, satellite powder is reduced, and the powder yield and the powder quality are improved.

The invention discloses a wafer post-processing device and a post-processing method, and relates to the technical field of semiconductor manufacturing, and the wafer post-processing device comprises a box body; the clamping assembly is arranged in the box body and is used for horizontally clamping and driving the wafer to rotate; the post-processing assembly comprises a spraying head, the spraying head is arranged above the clamping assembly, and the liquid medicine outlet end of the spraying head sprays liquid and / or gas towards the wafer so as to clean the surface of the wafer; the spraying head sprays protective gas towards the wafer so as to form a protective gas curtain above the sprayed liquid medicine, so that mist and particles in the box body are prevented from being in contact with the liquid medicine; the spray header comprises a spray seat, a spray head and a spray head, wherein an accommodating cavity is formed in the spray seat; the core part is arranged in the accommodating cavity; the liquid medicine tube extends downwards through the mounting hole of the core part; a first gap is formed between the liquid medicine tube and the mounting hole, and the protective gas is transmitted downwards through the first gap.

The invention relates to a wind tunnel PIV tracer particle rapid and uniform cooling and mixing device, and the device comprises a mixing channel section which is internally provided with a mixing channel, and the mixing channel is cylindrical; the first airflow inlets are formed in the end face of the inlet end of the mixing channel section and are annularly distributed along the end face of the inlet end of the mixing channel section; the center of the ring where the first airflow inlet is located coincides with the axis of the end face of the inlet end of the mixing channel; the second airflow inlet is formed in the end face of the inlet end of the mixing channel section and is formed in the axis of the end face of the inlet end of the mixing channel; the third airflow inlet is formed in the inlet end of the mixing channel section, and the third airflow inlet is formed in the tangential direction of the radial section of the mixing channel; the airflow outlet is formed in the outlet end of the mixing channel section; the first, second and third airflow inlets are in communication with the mixing channel. The device has the advantages of being simple in structure and low in cost, rapid mixing heat transfer of wind tunnel PIV tracer water particles can be achieved, and large-proportion collision in the mixing process is avoided.

The invention discloses a'seam-hole-weir 'combined fishway with four fish passing channels, and belongs to the field of fishway design. Four vertical seams, two inclined transverse baffles with bottom holes, two inclined rectangular weirs with bottom holes and two rectangular energy dissipation piers are arranged in each pool chamber, so that four fish passing channels are provided for migration and upstream of fishes, a more sufficient migration and upstream space is provided for the fishes, and the survival rate of the fishes is increased. And the flow velocity and turbulent fluctuation of the main flow area in the pool chamber are reduced by sharing the flow, and the flow velocity and turbulent fluctuation of the main flow area can be further reduced by promoting transverse / longitudinal diffusion and energy consumption of water flow. And the upstream success rate of the whole fish community (including fishes with strong swimming ability and fishes with weak swimming ability) can be improved. The'seam-hole-weir 'combined fishway with the four fish passing channels, provided by the invention, is beneficial to reducing the adverse effects of water conservancy projects on the ecological environment of a river, biological diversity and fishery resources.

The invention relates to a smoke purifier, and belongs to the field of purification. A smoke dust purifier comprises a shell assembly, and the shell assembly is provided with an air inlet, a containing cavity, an air draft cavity and an air outlet; the filtering assembly is arranged on the shell assembly and located in the containing cavity, and the filtering assembly is provided with a filtering air inlet and a filtering cavity; the air inlet assembly is arranged on the shell assembly, the air inlet assembly is provided with an air inlet channel, and the air inlet channel, the air inlet, the filtering air inlet, the filtering cavity, the air draft cavity and the air outlet are sequentially communicated; the fan assembly is arranged on the shell assembly and located in the air draft cavity; the display assembly is arranged on the shell assembly; the electric control assembly is arranged on the shell assembly, and the electric control assembly is electrically connected with the filtering assembly and the display assembly. The invention discloses a smoke dust purifier which is used for absorbing fine smoke dust generated in a working environment and reducing the risk that workers are exposed in a harmful dust environment.

The invention discloses a semi-coke tail gas chemical looping hydrogen production system which is characterized in that a first gas inlet chamber and a second gas inlet chamber are arranged in the hydrogen production system, and a reaction tube comprises a first reaction chamber and a second reaction chamber; the gas inlet of the first reaction chamber is communicated with the gas inlet of the second reaction chamber; the air outlet of the first reaction chamber is communicated with the air outlet of the second reaction chamber, so that the first reaction chamber and the second reaction chamber can supply air independently, the air speed in the first air inlet chamber is higher than that in the second reaction chamber, internal airflow circulation is effectively formed in the internal circulating fluidized bed, the reaction process is more sufficient, and the reaction efficiency is improved. The device effectively improves the hydrogen production efficiency, is simple in structure, realizes the independent air supply process through the independent design of the two cavities of the gas inlet pipe and the reaction pipe, realizes the effective circular reaction of tail gas in the reaction pipe through the control of the air speed, and improves the conversion efficiency.

The invention relates to the technical field of fluid dynamics experimental equipment, in particular to a circulating water tunnel in a low-noise environment, comprising: a water source power mechanism comprising a high-level water tank for bearing a water source and a water flow adjusting module for providing power for water flow in the high-level water tank through air pressure driving; the rectification test mechanism is used for adjusting water flow and performing a water flow test; the water source recovery mechanism is used for collecting the water source discharged by the rectification test mechanism and conveying the discharged water source to a high-level water tank of the water source power mechanism so as to maintain water balance of the circulating water tunnel; the noise reduction mechanism comprises a silencer, an iron sand frame and a flexible rubber plate; the data acquisition mechanism is used for acquiring the water level of the high-level water tank, the water flow speed of the test section and the noise intensity generated by the water flow adjusting module in the air pressure driving process. The noise can be effectively reduced.

The invention belongs to the technical field of sewage treatment, particularly relates to phase-change deoxidization and deamination equipment and a phase-change deoxidization and deamination method based on sewage treatment, and aims to solve the problems that wastewater is difficult to completely contact with phase-change deoxidization fibers in a wastewater flowing process, so that the deoxidization effect is influenced in deoxidization operation, and the operation and the safety of the equipment are influenced, the following scheme is provided: the phase-change deoxidization and deamination equipment comprises a shell, end shells are arranged at the two ends of the shell correspondingly, purging pipes are fixedly connected to the outer walls of one sides of the two end shells correspondingly, and purging air bins are fixedly connected to one ends of the two purging pipes correspondingly. The phase change deoxidization and deamination equipment and method based on sewage treatment have the effect of improving the sewage treatment effect, and during use, the device can disturb flow of wastewater in the sewage pipe bin, so that the contact effect of the wastewater and the deoxidization fiber body is improved when the wastewater flows; further, the degassing effect of the deoxidizing fiber on gases such as oxygen and ammonia gas in the wastewater is improved, and the using effect of the device is improved.

The invention discloses a natural gas transportation pipeline drag reduction structure, an optimization method and a system, and relates to the field of pipeline structures. The problems that groove drag reduction in the field of natural gas pipeline transportation aims at small-diameter pipelines, most grooves are in a traditional v shape, and the drag reduction effect is not remarkable enough are solved. The resistance reduction structure comprises a plurality of semicircular groove structures with alternate widths and widths; wherein the width of the wide groove is twice that of the narrow groove. The optimization method comprises the following steps: establishing a smooth pipeline and a model with a wide-narrow alternate semicircular groove on the wall surface; carrying out structured grid division on the smooth pipeline and the wall surface with the wide and narrow alternate semicircular grooves; numerical simulation is conducted through Fluent fluid simulation software, and a turbulent flow structure in the pipeline is obtained; and the drag reduction rate is calculated, and the final natural gas transportation pipeline drag reduction structure is determined according to the drag reduction rate. By reducing the resistance, the amount of conveyed gas can be increased under the same energy consumption, or the energy consumption is reduced under the condition of keeping the same flow, so that the overall conveying efficiency is improved.

The utility model discloses an improved large-flow centrifugal pump which comprises a connecting frame, a connecting rod is rotatably installed in the connecting frame, a motor is fixedly installed at one end of the connecting frame, an output shaft of the motor is fixedly installed at one end of the connecting rod, a pump shell is fixedly installed at one end of the connecting frame, and the connecting rod rotatably penetrates into the pump shell. A multi-stage pressurizing mechanism is rotatably mounted on the outer surface of the connecting rod in the pump shell, a communicating pipe is detachably mounted at one end of the water inlet of the pump shell, and a flow guide mechanism is rotatably mounted in the communicating pipe and fixedly mounted at one end of the connecting rod in the water inlet of the pump shell. Through the design of the flow guide mechanism and the multi-stage pressurization mechanism, the rotating threaded blades can reduce turbulent flow generated when liquid enters the pump, water flow is smoother and more stable, then the water inlet efficiency of the pump can be improved, meanwhile, the discharged liquid has high pressure, and the requirement for fluid pressure in daily use can be met.

The invention provides a plant protection spray head and a plant protection spraying device. The plant protection spray head comprises a shell, an isolation cylinder is coaxially sleeved with the shell, and an inner cavity with the left end open and the right end closed is formed between the shell and the isolation cylinder; a jet flow cavity with the right end open and the left end closed is formed in the isolation cylinder. A plurality of jet flow holes used for communicating the inner cavity with the jet flow cavity are formed in the barrel wall of the isolation barrel, and a set angle is formed between the jet flow holes and the axis of the inner cavity. By changing the internal structure of the plant protection sprayer, the liquid medicine flowing condition is improved, energy loss is reduced, and the liquid medicine utilization rate is increased. The plant protection spraying device can flexibly adjust the angle and direction of the spraying head according to the forms and growth stages of different crops, the utilization rate of pesticide is increased, and environmental pollution is reduced.

The invention discloses an evaporative crystallization device based on high-concentration wastewater and a zero discharge process, and relates to the technical field of wastewater treatment.The evaporative crystallization device based on the high-concentration wastewater comprises an evaporation tank, and a drainage device is arranged in the evaporation tank; the flow guide device comprises a heat conduction inner barrel fixed in the evaporation tank, an inner ring channel formed in the center of the heat conduction inner barrel, a flow guide pipe fixed in the inner ring channel and a plurality of groups of outer ring channels formed in the heat conduction inner barrel, and the plurality of groups of outer ring channels are sequentially formed from inside to outside by taking the inner ring channel as the center; first water outlets which are arranged up and down are formed between the inner ring channel and the adjacent outer ring channel, and second water outlets are formed between the other outer ring channels. By arranging the drainage device, when entering the evaporation tank, wastewater can sequentially pass through the multiple groups of outer ring channels along the inner ring channel in an S-shaped trend so as to diffuse and flow towards the periphery, so that disorder and stagnation of flow in a traditional system are avoided, and continuous flowability of the wastewater is ensured.

The invention discloses a high heat dissipation type direct current permanent magnet synchronous servo motor and a using method, and relates to the technical field of motors, the high heat dissipation type direct current permanent magnet synchronous servo motor comprises a center shaft and a stator, a rotor is arranged in the middle of the outer surface of the center shaft, the stator sleeves the rotor, and a sealing cover is arranged on one side of the outer surface of the center shaft. As the temperature of the electric brush assembly rises, the thermal expansion coefficient of the material can cause slight deformation or position adjustment of the electric brush, and the change can help maintain good contact pressure between the electric brush and the commutation copper sheet, so that contact resistance increase caused by temperature rise is reduced; graphite powder generated by abrasion of an electric brush can form a layer of conductive film on the surface of the commutation copper sheet, although the graphite is a conductor, if the graphite is not uniformly distributed, poor local contact is caused, and proper temperature control and design can ensure that the graphite layer is more uniformly distributed on the commutation copper sheet, and on the contrary, the electric contact quality can be improved.

The utility model relates to the technical field of sewage treatment devices, in particular to a chemical sewage treatment device which comprises a sedimentation tank and the like, the sedimentation tank is a main body of the sewage treatment device, an opening is formed in the top of the sedimentation tank, and supporting legs for supporting are arranged at four corners of the bottom of the sedimentation tank; the water inlet pipe is communicated with one side of the upper part of the sedimentation tank, and an electromagnetic valve I is arranged on the water inlet pipe and is used for controlling a water inlet switch of the water inlet pipe. Through the primary filter screen arranged at the opening in the top of the sedimentation tank, large suspended particles and impurities in chemical sewage can be effectively intercepted and removed, the contact and reaction speed between a sewage treatment agent and pollutants can be remarkably increased by matching the primary filter screen with the spiral stirring rod, the use efficiency of the chemical agent is improved, and the service life of the chemical agent is prolonged. And a plurality of settling ponds are sequentially connected in series, so that the sewage can be subjected to multi-stage treatment and settled, and finally, the sewage is ensured to reach the discharge standard.

The invention discloses falling film evaporation equipment, and relates to the technical field of falling film evaporation, and the falling film evaporation equipment comprises a rotating mechanism. According to the falling film evaporation equipment, through the design of the rotating mechanism, after liquid enters from the feeding port, the liquid washes the blades, the stress area of the blades to the liquid is increased, so that the effect of enlarging the rotating effect is achieved, the blades drive the rotating shaft to rotate, and the square plate is driven to rotate in the rotating process of the rotating shaft; the liquid flowing range is increased by stirring the liquid, so that the liquid flowing uniformity is improved, then the square notches are formed, the resistance borne by the square plates during rotation in the fluid is reduced through the open grooves, the energy consumption is reduced, and the uniform mixing of the materials is promoted; the stirring efficiency and quality are improved, the space with liquid is increased, and liquid attachment residues are reduced.

The utility model belongs to the technical field of electrolytic baths, and particularly relates to a pure water hydrogen production PEM electrolytic bath structure which comprises an anode plate and a cathode plate, the anode plate is provided with an oxygen outlet and a water inlet, the water inlet is fixedly provided with a first connecting shell and a second connecting shell, the first connecting shell is symmetrically provided with connecting assemblies, and the second connecting shell is fixedly provided with a second connecting shell. A filter screen is arranged on the frame and located on one side of the water inlet. According to the utility model, pure water can be conveniently filtered by the filter screen, tiny impurities in the pure water can be intercepted by the filter screen, water flow containing the impurities is prevented from entering the electrolytic bath, when the filter screen is regularly cleaned, the first connecting shell is detached from the second connecting shell by operating the connecting assembly, and then the frame is pulled to move out of the second connecting shell, so that the filter screen is cleaned; the filter screen is arranged on the filter screen to clean impurities on the filter screen, blockage of the filter screen caused by impurity accumulation is avoided, adverse effects of mechanical impurities possibly contained in pure water on the electrolysis process are avoided by filtering the pure water, and the purity of hydrogen produced by the electrolytic bath is improved.

The invention discloses a vertical axis wind turbine driving device with a wind deflector, and relates to the field of mechanical engineering, the driving device comprises a long shaft, a plurality of blades and a bearing assembly; the long shaft and all the blades form a wind wheel for driving the generator set to generate electricity; the wind deflector assembly is arranged on one side of the wind wheel; when the wind wheel rotates under wind power, the wind deflector assembly guides wind below the wind wheel to the upper portion of the wind wheel to form resultant force with wind acting on the upper portion of the wind wheel, driving torque generated by the wind wheel is enhanced, and the generator set is driven to generate power. The vertical-axis wind driven generator is very convenient to install and transport, the power generation efficiency of the vertical-axis wind driven generator is effectively improved, the blades are not prone to breakage and deformation, and meanwhile noise during working is effectively reduced. Therefore, compared with a traditional vertical axis wind driven generator driving device, the vertical axis wind driven generator driving device is more suitable for being popularized and applied in cities or areas with limited space, especially areas with rich wind energy.

The invention relates to the technical field of brazing materials, in particular to brazing filler metal and a preparation method and application thereof. The solid state of the brazing filler metal is in a sandwich foil shape, the brazing filler metal comprises a foil-shaped brazing filler metal core and an aluminum foil layer wrapping the peripheral side of the brazing filler metal core, and the brazing filler metal core contains Sr and foamed aluminum particles. The preparation method comprises the following steps: S1, melting a required amount of aluminum foil layer raw material into molten metal, and casting to obtain a hollow plate-shaped aluminum frame body with openings at two ends; s2, a required amount of brazing filler metal metal core raw material is heated to prepare a metal suspension containing solid foamed aluminum particles, the metal suspension is injected into the aluminum frame body, and a composite metal plate is obtained after cooling; and S3, the composite metal plate is subjected to multi-pass rough rolling and finish rolling, and the sandwich foil-shaped brazing filler metal is obtained. The brazing filler metal structure and the formula components are optimized and improved, brazing filler metal loss and brazing filler metal liquid turbulence during brazing can be restrained, and the shear strength of a brazed joint is improved.

The utility model relates to an air fryer with high cooking efficiency, which comprises a machine body, a cooking cavity arranged in the machine body and a heating component arranged in the cooking cavity, an air duct plate is arranged at the rear part of the cooking cavity, and an air deflector with an air suction port in the middle is arranged on the front side of the air duct plate. A flow guide channel communicated with the cooking cavity is formed between the air guide plate and the air duct plate, a centrifugal fan corresponding to the air suction opening is arranged in the flow guide channel, and the flow guide channel comprises a left flow guide channel body and a right flow guide channel body which extend towards the two sides. The left flow guide channel and the right flow guide channel are of a center line symmetrical structure, the left flow guide channel comprises an upper left flow guide channel body and a lower left flow guide channel body located below the upper left flow guide channel body, and the width of the upper left flow guide channel body is smaller than or larger than that of the lower left flow guide channel body. The air outlet direction of the centrifugal fan can be better corresponding, so that the air outlet efficiency and the cooking efficiency are improved.

The invention relates to the field of portable heat dissipation, in particular to a neck-hanging fan which comprises a fan, a ventilation channel, a first air inlet and a first air outlet, the first air inlet and the first air outlet are communicated with the ventilation channel, and the fan is arranged in the ventilation channel. The fan runs, air flow penetrating through the ventilation channel is formed between the first air inlet and the first air outlet, and the direction of the rotating center axis of the fan is consistent with the direction of the air flow; at least two silencing devices are arranged in the ventilation channel, at least one silencing device is arranged between the first air inlet and the draught fan, and at least the other silencing device is arranged between the draught fan and the first air outlet. The neck-hanging fan can achieve the effects of high wind speed and low noise, and can effectively reduce the influence of high-frequency noise on a user so as to improve the user experience.

The utility model belongs to the technical field of combustion, and particularly discloses a fire grate, a combustor and gas heating equipment. The fire grate comprises an inner shell, an inner core head and a rectification inner core. An injection channel and a first flame channel which communicate with each other are formed in the inner shell, and the upper end of the first flame channel is open; the inner core head comprises a fire hole plate covering an opening in the upper end of the first flame channel, and at least three first fire holes are formed in the fire hole plate in the first direction of the fire row; the rectifying inner core is vertically inserted into the first flame channel, the rectifying inner core and the two side walls, in the first direction, of the inner shell are arranged at intervals, the upper portion of the first flame channel is divided into a plurality of sub-flow channels through the rectifying inner core, and the upper end of each sub-flow channel communicates with the corresponding first fire hole. According to the fire grate, the combustor and the fuel gas heating equipment, the structure of the fire grate can be simplified while the combustion stability is improved, the machining difficulty of the fire grate is reduced, and therefore the cost of the combustor and the fuel gas heating equipment is reduced.

The utility model relates to the technical field of mechanical engineering, in particular to an air-floating suspension high-speed fan box which comprises a frame, supporting legs are arranged at the bottom of the frame, rubber pads are arranged at the bottom ends of the supporting legs, an air outlet flange door plate is arranged on the left side of the frame, and a ventilation door plate is arranged on the right side of the frame. The defects in the prior art are overcome, certain errors can be generated in the installation process by utilizing the ductility of the hoses through the corresponding hoses, the installation difficulty and the production cost can be reduced by replacing steel pipes with the hoses, gaps can be filled through the arranged noise reduction cotton, and the noise reduction effect is good. Through the arrangement of the air exhaust box, smooth flowing of airflow can be ensured, right-angle or acute-angle turning is avoided, sudden change and disturbance of the airflow in the air duct are reduced, the uniformity and stability of airflow flowing are improved, the airflow is guided to flow in the preset direction, and turbulent flow and impact are reduced.

The invention relates to the technical field of atomization devices, and discloses carbonyl iron powder atomization pyrolysis equipment with an atomization nozzle structure, the carbonyl iron powder atomization pyrolysis equipment comprises a collector, the collector is located at the bottom end of the inner wall of a pyrolysis machine and used for collecting iron powder particles, and an atomization nozzle is located above the collector. According to the invention, by arranging the adjusting piece and the blades, high-speed airflow rotates to form a special flow field, liquid hydroxyl iron is more fully mixed with gas under the action of centrifugal force and the rotating airflow after entering the flow field, and the gas can more uniformly apply acting force to liquid due to the full mixing of the gas and the liquid, so that liquid drops are further refined, and the atomization quality is improved; the edge effect that liquid drops are distributed unevenly may occur during spraying in the edge area, the liquid drops in the edge area can be distributed more evenly through rotating airflow generated by the blades, the difference between the spraying amount and the liquid drop distribution of the edge area and the center area is reduced by adjusting the motion trails of the airflow and the liquid drops, and the overall spraying uniformity is improved.

The utility model provides a lotus leaf tea fragrance capturing device, which relates to the technical field of flower fragrance collection and comprises an equipment shell, a control device arranged on the front side of the equipment shell, a breather pipe arranged at the top of the equipment shell, a support frame arranged at the top of the equipment shell, a gas collection tank arranged at the top of the equipment shell, and a gas concentration detector arranged at the top of the gas collection tank. A rubber sealing ring is arranged at the bottom of the air collection tank, an air guide plate is arranged on one side of the equipment shell, a placement plate is arranged on one side of the equipment shell, and an air guide turbine disc is additionally arranged at the top of the equipment shell, so that the air flowing speed and flow can be increased through the additionally arranged air guide turbine disc during use; the device is simple in structure and convenient to use, rapid spreading and capturing of fragrance are facilitated, the fragrance is more evenly distributed in the device, capturing efficiency is improved, meanwhile, the contact area of the fragrance and a capturing medium is enlarged, the adsorption effect is enhanced, and therefore more stable airflow is provided, normal operation of the device is maintained, the collection process of the fragrance is accelerated, and collection time is shortened.

The invention relates to the technical field of wastewater treatment, and discloses a concrete member environment-friendly production wastewater treatment device and method.The concrete member environment-friendly production wastewater treatment device comprises a treatment box, a feeding port and a drainage port, the feeding port and the drainage port are formed in the top end and the bottom end of the treatment box, and a stirring structure is arranged in the treatment box and driven by a motor; two oil absorption devices for absorbing grease are mounted at the top of the treatment box and are driven by a driving stirring structure. Air is blown into the treatment box through interaction of the magnetic piston and the magnetic fan and action of the magnetic piston and the inflation system, the air is divided into two parts, one part is guided into wastewater, decomposition of organic matter is accelerated, grease is driven to float upwards, the wastewater treatment efficiency is improved, the other part of air flows on the surface of the wastewater, and the wastewater treatment effect is improved. Air flow is accelerated, and foam generation is reduced.

The utility model relates to the technical field of oil separation, in particular to an oil separator and an air conditioning system thereof. The oil separator comprises a barrel, an air inlet pipe, an air outlet pipe, an oil outlet pipe and a spiral guide plate, a first communication hole is formed in one end of the barrel, a second communication hole is formed in the other end of the barrel, one end of the air outlet pipe extends into the barrel through the first communication hole, one end of the air inlet pipe penetrates through the side wall of the barrel and extends into the barrel, and the oil outlet pipe is communicated with the second communication hole. The spiral guide plate is wound on the peripheral side of the part, positioned in the cylinder, of the air outlet pipe; and one end, extending into the cylinder, of the air inlet pipe is positioned between two axial ends of the spiral guide plate. The gas-liquid separator has the advantages that the spiral guide plate is arranged to guide the flow direction of a refrigerant entering the cylinder through the gas inlet pipe, so that the gas-liquid separation effect is improved, the turbulent flow is reduced, and unnecessary pressure loss caused by disordered flowing paths of the refrigerant is avoided; and the power consumption and the refrigeration efficiency of an air conditioning system mounted on the oil separator are influenced.