45results about How to "Increased air turbulence" patented technology

The invention relates to a cable-stayed bridge stay rope capable of resisting the aerodynamic instability, which comprises a center steel wire cable and a surface sheath, wherein the surface sheath covers the center steel wire cable, a wave-shaped open hole outer cover is covered on the periphery of the surface sheath, rain can be leaked from holes of the outer cover, the formation of rain lines on the surface of the outer cover is blocked, and the wave-shaped open hole outer cover can also damage the regularity of the Karman vortex street in the tail current region of the stay rope and the regularity of the axial flow and the axial vortex, so the occurrence of the stay rope wind-rain induced vibration can be avoided, the occurrence condition of dry galloping can be damaged, and the safety of the stay cable is improved.

A golf ball (20) having a plurality of standard dimples (33) and a plurality of covered dimples (31) is disclosed herein. Each of the plurality of covered dimples (31) has at least one overhang land area portion (50) that covers a portion of a concavity (55) of the covered dimple (31). A covered region (70) under the overhang land area portion (50) generates eddy currents during the flight of the golf ball (20) which creates greater turbulence at the surface (22) of the golf ball (20) allowing for greater distance.

A heat exchanger for a dryer includes a plurality of tube units configured to conduct warm humid air and a plurality of fin units configured to conduct a flow of ambient air. The tube units and fin units are alternately stacked to form a core. The fin units includes a plurality of air channels formed by repeatedly bending a flat metal plate in a zigzag fashion and a plurality of fins formed on surfaces of the air channels. The tube units have a duct form with both ends opened. The tube units may be formed by extrusion. A plurality of channel walls can be formed inside the tube units. A plurality of grooves or fins can also be formed inside the tube units. A plurality of channel walls can also be vertically formed inside the tube units. In this case, the grooves or fins can be formed on the channel walls. The grooves or fins can also be formed in a spiral form on the inner surfaces of the tube units.

The invention discloses an intelligent control oxygen-enriched firing system for a kiln. The intelligent control oxygen-enriched firing system for the kiln comprises an oxygen-enriched system, an oxygen-enriched burner, a temperature measurement and analysis system, a firing expert optimization system and an intelligent control system. According to the intelligent control oxygen-enriched firing system for the kiln, the oxygen enrichment is produced and provided by a special oxygen-enriched system; the novel oxygen-enriched burner is adopted; according to different coal powder types, coal powder amount and grinding granularity of a kiln system, the shapes and temperature distribution of flames are obtained by the accurate temperature measurement and analysis system, all on-site actual thermal parameters and on-site states of the kiln are combined, the system analysis and the prediction and judgment are carried out by the firing expert optimization system, and the intelligent regulationand dynamic matching of the special oxygen-enriched system are controlled by the intelligent control system, so that the optimal operation state of the firing system of the kiln is kept, the efficientand stable burning of coal powder in the oxygen-enriched burner is realized, the consumption of the coal powder is reduced, the quality of burned materials is improved, the generation and emission ofNOx are effectively reduced, meanwhile, the fluctuation of the kiln system caused by the debugging experience and level difference of operators is reduced, and the normal and stable operation of thekiln system is guaranteed.

The invention provides an air conditioner, an operation control method of the air conditioner, an operation control device of the air conditioner and a readable storage medium, wherein the operation control method of the air conditioner comprises the following steps of obtaining the opening angle and the room temperature of an air guide assembly at a specified operation stage; and configuring a swinging stroke according to the opening angle and/or the room temperature so as to control the air guide assembly to swing in a reciprocating way according to the swinging stroke. By executing the technical scheme, on one hand, the uniformity of the temperature in a room can be improved; on the other hand, the airflow disturbance in the room can be increased; and the body feeling comfort of users is improved.

The invention discloses innocent treatment equipment and method for naphthalene-bearing hazardous wastes. The equipment comprises a crushing system, an air delivery system and a combustion system. A sinterer ignition furnace of the combustion system comprises a flame nozzle (1), refractory bricks (2), an observation window (3) and a hearth (11). The air delivery system is connected with the combustion system through a high temperature resistant nozzle (10). The crushing system is connected with the air delivery system. An inlet of a feed bin (5) is connected with a roll crushing mill (4). An outlet of the feed bin (5) is connected with an air-particle mixing bin (6) through a feed inlet valve (8). An entry end of the air-particle mixing bin (6) is connected with an air compressor (7) through an air inlet valve (9), and an exit end of the air-particle mixing bin is connected with a high temperature resistant nozzle (10). After mixed with air through the air delivery system, naphthalene-bearing hazardous waste particles are ejected into the sinterer ignition furnace of the combustion system and boil-combusted under the action of high-temperature environment more than 900 DEG C. Air-particle mixing ratio is regulated by regulating the feed inlet valve (8) and the air inlet valve (9).

A deputation process and corresponding apparatus for purification of the air of a closed environment characterized by indoor pollution, in which, in order to reduce the pollution, a water tank is provided that contains a multiplicity of active biomasses designed to absorb and metabolize the pollutant substances that are contained in the water and come from the air of the closed environment, and elements of water-air contact, designed precisely to transfer the pollutant substances from the closed environment into the water within the tank.

The invention discloses a device for controlling a heating temperature field to purify and prepare polycrystalline silicon. The furnace body is provided therein with a heat insulation plate, a coolingplate, a crucible, a heating induction ring and a heat preservation tube. The heat preservation tube is provided therein with an upper graphite heating ring, a middle graphite heating ring and a lower graphite heating ring, connection rings are arranged between the upper graphite heating ring and the middle graphite heating ring, and between the middle graphite heating ring and the lower graphiteheating ring, respectively, and the connection rings are made from a high temperature resistant material with heat conduction coefficient of 10-50 W/m.k. A purification process comprises the steps: introducing a cooling gas into a cooling plate; introducing an inert gas into a furnace body, and meanwhile discharging through an exhaust pipe provided at the top of the furnace body to ensure a certain gas pressure existing in the furnace body; and controlling the upper graphite heating ring, the middle graphite heating ring, and the lower graphite heating ring to cool according to a certain procedure. The device and process for controlling heating temperature field to purify and prepare polycrystalline silicon facilitates the formation of a uniform temperature gradient, being favorable for crystal growth, and can effectively prevent the stepwise sudden change of a stepwise heat field from top down.

An efficient turn-back type SDS (sodium dodecyl sulfate) desulfurization tower device belongs to the technical field of flue gas desulfurization and purification. The device comprises an inlet compensator, an inlet flue, a first ascending bin ash bucket, a spraying hole, a first ascending bin, a flow guide plate, a communication opening, a flow guide plate, a descending bin, a descending bin ash bucket, a communication opening, a flow guide plate, a second ascending bin, a second ascending bin ash bucket, a flow guide plate, an outlet compensator, an ash discharging valve, a level gage, a vibrator, an access hole, a first partition plate and a second partition plate. The device has the advantage that the problems of short contact time of flue gas and a desulfurizing agent, low desulfurization efficiency, poor matching effect with a dust removal system and the like in a sodium-based dry desulfurization system are solved.

The invention discloses a device and method for reducing urea crystals of an SCR system. The device comprises a temperature sensor, a pressure sensor, a heating and pressurizing gas nozzle, a pressurizing device, an electric heating device, an electronic regulating valve, a pump machine, a waste gas temperature difference power generation device, a storage battery, a recycling waste gas pipe and an electronic control unit. By means of the device, aiming at the low-temperature working condition, waste gas reduced by the SCR system is heated, recycled and injected into the SCR system, and therefore the reaction temperature of NOx and a urea aqueous solution is increased. The reaction temperature is increased, so that the probability of forming a liquid film is reduced, and the generation of the urea crystals is reduced. Meanwhile, the urea aqueous solution and the heated recycled waste gas are oppositely jetted in the SCR system, so that airflow disturbance in a pipe is increased, the probability of forming the liquid film is reduced, and the urea aqueous solution and the recycled waste gas are fully mixed and fully reacted. Meanwhile, heat in waste gas is utilized to generate power by adopting a waste gas temperature difference power generation technology, power is supplied to electric appliances in the device, and energy conservation and emission reduction are achieved.

The invention discloses a heat exchange fin, a heat exchanger and an air conditioner. The heat exchange fin comprises at least one fin unit, each fin unit is provided with a plate-shaped body, and each plate-shaped body is a curved plate. A pipe hole is formed in the convex top of each plate-shaped body, a flange surrounding each pipe hole is formed, and the convex extending direction of each flange is the same as the convex direction of the corresponding plate-shaped body. First hollowed structures extending to the periphery in a divergent manner by taking the corresponding pipe hole as the center are formed at the position, around the corresponding pipe hole, of each plate-shaped body. First flow guide grooves are formed in one side or two sides of the pipe hole in each plate-shaped body in the radial direction of the pipe hole, one end of each first flow guide groove extends to the edge of the corresponding plate-shaped body, and the other end of each first flow guide groove extends to the corresponding flange. The first hollowed structures are distributed on the two sides of the first flow guide grooves.

The present invention provides dry powder inhaler (DPI) devices (100) for dispensing dry powder and methods for using the same. The DPI devices feature vortex mechanisms for directing air in a turbulent manner sufficient to entrain an amount of a dry powder dose for delivery into a user's lungs. The DPI devices feature replaceable dry powder cartridges (200). The DPI devices also feature a retractable configuration for storage and for accidental dispensing of dry powder. The DPI devices dispense dry powder in controlled dosages.

A compact, energy efficient air cooling system for a rotating shaft bearing module includes a Coanda surface having a periphery that smoothly curves from a radial center to axial alignment with a side of the module. A fan blade mounted on the shaft directs an airflow radially parallel and adjacent to the Coanda surface, causing the airflow to be bent by the Coanda effect from radial to axial, and to be directed along the side of the housing. Embodiments that can be applied to existing housings include a Coanda panel adjacent to the housing end face. A double suction fan blade can draw both external air and air from between the panel and the housing. In other embodiments the housing end face itself is a Coanda surface. A fan cover can have an inwardly curved periphery that forms a reduced gap or nozzle with the Coanda surface.