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7results about How to "Enhanced blending" patented technology

A highly compact lobe mixer

ActiveCN117606049BQuick blendenhanced blendingContinuous combustion chamberFuel distributionMechanical engineering
This invention discloses a high-efficiency, compact lobe mixer, which consists of a lobe, an air distribution plate, a first air distribution hole, a primary fuel distribution chamber, a fuel mixing pipe, a fuel inlet pipe, a flow channel, a flow channel pipe, a flange, mounting holes, a second air distribution hole, a film gas hole, a secondary fuel distribution chamber, a fuel branch pipe, and fuel holes. It enables rapid, efficient, and low-pressure-loss mixing of fuel and air. The mixer utilizes the vortex development at the lobe tip for fuel and air mixing. Air enters the mixing channel at a predetermined velocity after being rectified by the air distribution hole. The fuel distribution chamber is attached to the outer wall of the lobe and connected to the fuel pipe at the lobe tip via the fuel branch pipe, ensuring uniform fuel distribution and lobe structural strength. The number, diameter, angle, and spatial position of the fuel holes at the lobe tip are determined based on the area of ​​the two ducts separated by the lobe. A film gas hole is provided at the outlet of the mixing channel, serving both to enhance mixing and for structural cooling.
Owner:JIANGSU ZHONGKE ENERGY POWER RES CENT +1

Flow guide structure for baffling type disinfection tank and design method of flow guide structure

PendingCN121850158AImprove velocity distribution uniformitydestabilizationGeometric CADFlow mixersMechanical engineeringMechanics
The invention discloses a flow guide structure for a baffling type disinfection tank and a design method thereof, the flow guide structure comprises baffles and flow guide plates arranged in the disinfection tank, the starting ends of the baffles are connected with the inner wall of the disinfection tank, flow channels exist between the open ends of the baffles and the inner wall of the disinfection tank, the multiple baffles are alternately arranged in the disinfection tank in parallel, and the flow guide plates are arranged in the disinfection tank. The guide plate is arranged at the open end of the baffle plate, and gaps exist between the guide plate and the open end of the baffle plate and between the guide plate and the inner wall of the disinfection tank, and the guide plate is used for guiding fluid flowing to the open end of the baffle plate. The inlet of each reaction chamber is divided into a left part and a right part through the guide plate, so that the influence of right-side high-speed fluid on left-side fluid flowing is weakened, meanwhile, the right-side high-speed fluid of each reaction chamber can be guided to flow through the guide plate, the flowing direction of the fluid is optimized, and the flowing speed of the left-side fluid of each reaction chamber is increased; therefore, the area of a backflow low-speed area is reduced, the strength of adherent flow is weakened, and the velocity distribution uniformity of fluid in the reaction chamber is optimized.
Owner:CENT SOUTH UNIV

Wide-speed-range self-adaptive structure and method of regenerative cooling channel

PendingCN121993294AMinimize hindranceaccelerated destructionTurbine/propulsion engine coolingHeat exchanger casingsThermodynamicsHeat management
The invention belongs to the field of regenerative cooling channels, and particularly relates to a wide-speed-range self-adaptive structure and method of a regenerative cooling channel. The structure comprises a spoiler and a metamaterial elastic connecting piece, wherein one end of the spoiler is connected with the metamaterial elastic connecting piece, and the other end of the spoiler is fixed on the wall surface of the air flow channel; the metamaterial elastic connecting piece is configured to form an acute included angle with the wall surface of the flow channel in a balance state; the spoilers are configured to be that under the action of fluid, the included angle between each spoiler and the wall face of the corresponding flow channel can be reduced along with increase of the fluid flow, and therefore self-adaptive adjustment that heat exchange is enhanced when the flow is low and resistance is reduced when the flow is high is achieved. The inclination angle is automatically adjusted through the movable spoilers under the action of fluid, and wide-speed-range heat management that heat exchange is enhanced at low flow and resistance is reduced at high flow is achieved.
Owner:NAT UNIV OF DEFENSE TECH

A radial flame stabilizer with airflow-assisted jet

ActiveCN118009358Bincrease jet velocityImprove evaporation effectContinuous combustion chamberJet flowMechanics
This invention discloses a radial flame stabilizer with airflow-assisted jet, comprising an outer wall and an inner wall. Both the outer and inner wall surfaces have V-shaped cross-sections, including a pointed tip and two tail ends. The two corresponding tail ends of the outer and inner wall surfaces are connected by a flow-rectifying wall. An air-guiding groove is provided at the pointed tip of the outer wall, and several injection holes are provided near the tail ends. The air-guiding groove, the interlayer between the outer and inner wall surfaces, and the injection holes form an airflow channel. A fuel injection extension pipe is provided near the tail ends of the inner wall, extending from the inner wall towards the injection holes. The fuel injection extension pipe guides the fuel injection from the injection holes. By introducing a portion of the incoming flow through the air-guiding groove at the stabilizer head, and utilizing the method of coaxial injection of the introduced incoming gas and fuel, the problem of shallow fuel jet depth and difficult evaporation under high-speed, large-flow conditions is improved, resulting in better fuel evaporation and mixing performance compared to conventional radial flame stabilizers.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A chemical oil removal device for raffinate

This invention provides a chemical oil removal device for raffinate, comprising an oil removal tank, above which are connected nickel sulfate solution and steam pipelines. A level gauge and a mixer are located at the top of the oil removal tank. A first sodium persulfate preparation tank and a second sodium persulfate preparation tank are connected to the side of the mixer. The first sodium persulfate preparation tank is equipped with a first sodium persulfate delivery pump, and the second sodium persulfate preparation tank is equipped with a second sodium persulfate delivery pump. The mixer is connected to the oil removal tank, the nickel sulfate solution pipeline, the first sodium persulfate delivery pump, and the second sodium persulfate delivery pump. This invention can adjust the valve to control the flow rate according to the oil content of the system, achieving satisfactory oil removal while maximizing reagent mixing and improving reagent utilization efficiency, thereby reducing system production costs. It is easy to operate and highly practical.
Owner:JINCHUAN GROUP NICKEL COBALT CO LTD

A hydrogen fuel turbine engine

This invention proposes a hydrogen fuel turbine engine, including an air intake, a compressor, a hydrogen combustion chamber, a turbine, an exhaust nozzle, and a hydrogen storage device. The hydrogen combustion chamber is supplied with hydrogen via a hydrogen supply pipe, which is installed in an air supply pipe to form an air supply unit. The hydrogen storage device is connected to the hydrogen supply pipe. The air compressed by the compressor enters the hydrogen combustion chamber and is split into two paths. One path directly enters the interior of the flame tube through air holes on the flame tube wall, while the other path is split into multiple paths and connected to the air pipe. The air supply unit enters from the rear end of the flame tube and extends to the front of the flame tube. The hydrogen supply pipe and the air pipe respectively spray hydrogen and air towards the head of the flame tube, where air and hydrogen are mixed and combusted at constant pressure in the flame tube. This invention incorporates an air pipe outside the hydrogen supply pipe. On one hand, this introduces more gas, which lowers the temperature of the main combustion zone in the combustion chamber and reduces the generation of nitrogen oxides. On the other hand, the air pipe can also serve as a heat insulation pipe, effectively reducing the surface temperature of the hydrogen supply pipe. Simultaneously, the air inside the pipe impacts the flame tube head, which not only lowers the temperature of the head panel but also generates a complex vortex structure at the flame tube head, further enhancing the mixing of hydrogen and air. The inconsistent natural frequencies of the vortices prevent thermal oscillation problems.
Owner:BEIJING POWER MACHINERY INST

Mixer with adjustable internal and external culvert areas

PendingCN121952761ARealize active controlBroaden the work envelopeJet propulsion plantsCombustion chamberTurbine
The invention provides a mixer with adjustable inner and outer culvert areas, and belongs to the technical field of aero-engines, the mixer is mounted in a mixing diffusion section of an afterburner, an area between the mixer and an inner cone cavity forms an inner culvert channel, and high-temperature fuel gas discharged after a turbine is filled in the inner culvert channel; an outer culvert channel is formed in a region between the mixer and the casing, and oxygen-enriched low-temperature gas behind the fan is filled in the outer culvert channel; the mixer comprises a polygonal mounting ring, a driving source, a driving piece and multiple sets of driven pieces, one end of the polygonal mounting ring is fixed to the front engine structure, the other end of the polygonal mounting ring is movably connected with the driving piece and the driven pieces, the driving piece is connected with the driving source, and the multiple sets of driven pieces are movably connected in parallel. The two driven pieces located on the edge are movably connected with the two sides of the driving piece respectively, and the driving piece and the driven pieces are connected to form an expandable and contractible circular ring structure. The working envelope of the afterburner is effectively widened, and the working performance of the afterburner under the wide speed range condition is improved.
Owner:AECC SICHUAN GAS TURBINE RES INST