20results about How to "Enhanced blending" patented technology

The invention relates to the field of chemical incineration, in particular to a waste gas heat value self-adaptive combined combustor which comprises an ignition device, a flame detector, a sight glass, a hearth, a waste gas pipeline, a waste gas combustion-supporting pipeline, a main gas pipeline and a main gas combustion-supporting pipeline. Different types of waste gas can enter the hearth through the waste gas pipeline, the waste gas can effectively flow to the hearth under the action of the waste gas combustion-supporting pipeline, main gas can be better and fully combusted through the arrangement of the main gas pipeline and the main gas combustion-supporting pipeline, meanwhile, the ignition device, the flame detector and the sight glass are matched, and the combustion efficiency is improved. The high-concentration waste gas combustion-supporting device has the advantages that in the chemical incineration process, when the heat value of the waste gas is low, the waste gas can be sprayed into the hearth, when the heat value of the waste gas is high, combustion-supporting air and the high-concentration waste gas can be rapidly mixed, and meanwhile the effect of stabilizing waste gas flames can be achieved.

The invention provides a powder fuel-based cross-medium ramjet engine which comprises a powder fuel cabin, a combustion chamber and a spray pipe are fixedly connected to the axial front end of the powder fuel cabin, a high-pressure gas tank is fixedly connected to the axial rear end of the powder fuel cabin, and a plurality of gas generators are fixedly arranged on the inner wall of the combustion chamber; a plurality of air inlet channels are arranged on the outer wall of the combustion chamber; the high-pressure gas tank is communicated with the powder fuel cabin through a high-pressure gas flow channel and a fluidization pipeline, and is communicated with the gas inlet channel through a gas inlet channel pressurizing pipeline; a liquid medium cavity is formed in the air inlet channel and communicates with the combustion chamber through a liquid medium main supply pipeline, an upstream liquid supply pipeline and a downstream liquid supply pipeline. Combustion energy release of the powder fuel in the air mode and the underwater mode of the cross-medium ramjet engine is effectively promoted, and the method is suitable for the powder fuel cross-medium ramjet engine.

The invention discloses a plasma jet device based on ionic wind driving, which comprises a hollow cylinder, a high-voltage metal needle electrode plate is mounted in the cylinder, a plurality of high-voltage metal needle electrodes are fixed on the high-voltage metal needle electrode plate in an annular array manner and are connected with a high-voltage excitation power supply circuit, and the inner wall of the cylinder is covered with a metal wall ground electrode. The insulating medium rings cling to the metal wall ground electrode and are arranged at intervals from the high-voltage metal needle electrode plate; the needle body of the high-voltage metal needle electrode, the insulating medium ring and the metal wall ground electrode form a plasma jet structure, the needle head of the high-voltage metal needle electrode and the metal wall ground electrode form an ionic wind generation structure, ionic wind generation areas and plasma generation areas are arranged in a staggered manner, and generation of plasma jet is driven by multistage ionic wind. The ion wind structure and the plasma jet structure are coupled, large gas carrier equipment is not needed, the application scene of the device is expanded, and meanwhile the plasma jet performance is improved.

The invention discloses a composite rectification control and guidance method for improving the mixing flow state of a river channel intersection area. The method comprises the following steps that in the flood season and the dry season, the river width and the water depth of a branch flow intersection and the river width and the water depth of a downstream section of a main flow intersection are surveyed respectively; inner elliptic arc treatment is conducted on the positions, close to the intersection position of the water flow separation area embankment line and the main flow intersection opening, of the branch flow intersection openings; outer elliptic arc treatment is conducted on the intersection position, away from the water flow separation area embankment line and the main flow intersection opening, of the branch flow intersection opening; a lifting spur dike is arranged at the position of a water flow acceleration area at the downstream of the main stream intersection; in the dry season, the spur dike is lifted; in the flood season, the spur dike descends, and main stream flood discharge is facilitated. The flood discharge efficiency of the river channel in the flood season is improved, the flood threat faced by dikes on the two banks in the flood season is reduced, and the concentration of water pollutants on the bank side of the downstream water flow separation area of the intersection is reduced.

The present invention relates to the technical field of gas turbines, and provides a flame tube of a combustion chamber, a combustion chamber and a gas turbine, comprising a first body, wherein the air inlet end of the first body comprises a plurality of air inlet channels, and the air inlet channels are used to introduce a main airflow; a mixing channel is arranged in the air inlet channel, and the mixing channel is used to introduce a combustion-supporting gas into the air inlet channel, so that the combustion-supporting gas is mixed with the main airflow; a vortex generator is arranged in the air inlet channel, and the cross-section of the vortex generator gradually increases along the flow direction of the main airflow. The main airflow is mixed with the combustion-supporting gas in the process of passing through the air inlet channel, and when the main airflow passes through the vortex generator, at least a first vortex along the flow direction of the main airflow and a second vortex deviating from the flow direction of the main airflow are formed, and the first vortex and the second vortex formed by the main airflow through the vortex generator can significantly reduce the flow velocity of the main airflow, thereby enhancing the mixing of the combustion-supporting gas and the main airflow, improving the distribution uniformity of the combustion-supporting air in the main airflow, and reducing the emission of nitrogen oxides in micro-mixed combustion.

The utility model discloses a combined gravity mixing bin which comprises a primary storage unit, a secondary storage unit, a pneumatic valve and a mixing bin, according to the scheme, external circulating material mixing is not needed, energy consumption can be reduced, material crushing is reduced, and the situation that quality is affected by dust, wiredrawing and the like is reduced. And 64 batches of materials can be uniformly mixed. According to the scheme, the stock bin is composed of the two storage stock bin bodies and the mixing stock bin body, and the partition plates are arranged to be in an arc shape, so that large material pressure can be borne under the condition that materials are saved; a rotating mechanism of the feeding port and the discharging port is accurate in control angle, simple in structure and small in energy consumption, and only compressed air is needed; a central pipe and a partition plate are arranged in each storage bin, blanking and mixing are carried out through a slotted hole in the central pipe, the structure is simple and efficient, and a blocking pipe is driven to control the discharging speed at a discharging port of the central pipe of the first-stage storage bin through stretching and retracting of an air cylinder with an outlet adjusting valve; a baffle and a baffle pipe are arranged in the mixing bin, and mixing is further enhanced through collision and dispersion.

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.

The present invention relates to the technical field of gas turbines, and provides a combustion chamber micro-mixing head, a gas turbine combustion chamber and a gas turbine. The combustion chamber micro-mixing head comprises: a honeycomb unit, a vortex generator and an injection channel, wherein a plurality of honeycomb holes are arranged in the honeycomb unit, and the honeycomb holes extend along the thickness of the honeycomb unit to form a flow channel in the honeycomb unit, and injection holes for injecting hydrogen are arranged on the side wall of the flow channel, and by arranging a vortex generator in the flow channel in the honeycomb hole, the disturbance of air in all directions is increased, and a flow vortex along the way is generated, and the air flow rate is reduced, so that hydrogen is dispersed into the air very quickly along the entire cross section, thereby reducing the emission of NOx of micro-mixing combustion, and at the same time preventing the problem of hydrogen flashback, enhancing the safety and service life of hydrogen combustion, and reducing carbon emissions and carbon management costs.

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.

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.

The invention discloses a machine tool liquid cooling heat dissipation device based on a Tesla valve principle and interpolation turbulent flow. The machine tool liquid cooling heat dissipation device comprises a base plate, interpolation turbulent flow units and a cover plate. An inlet groove, an outlet groove and a plurality of parallel main flow channels are formed in the base plate, and the main flow channels are located between the inlet groove and the outlet groove and communicate with the inlet groove and the outlet groove; a working medium circulating inlet and a working medium circulating outlet are respectively formed in the inlet groove and the outlet groove; a plurality of pairs of auxiliary flow channels are arranged in each main flow channel, mounting grooves are symmetrically formed in each pair of auxiliary flow channels, and interpolation type turbulent flow units are detachably mounted in the mounting grooves; each main runner and an auxiliary runner arranged in the main runner jointly form a Tesla valve structure; the cover plate is fixed to the base plate and carries a heat source, heat of the heat source is distributed on the cover plate, sealed Tesla valve structures are formed between the base plate and the cover plate to provide circulation channels for heat exchange working media, and cooling liquid in the Tesla valve structures circularly flows to achieve cooling.

The invention discloses an air intake structure for a gaseous fuel pulse detonation combustion chamber, belonging to the field of combustion; the structure comprises a mainstream channel sleeve, an interlayer sleeve, an outer wall sleeve and a twisted plate section, wherein the interior of the mainstream channel sleeve is a convergent-divergent structure, and 12 to 32 fuel inlet holes are opened at the throat and downstream of the throat; the fuel inlet holes on the interlayer sleeve correspond one-to-one with the fuel inlet holes of the mainstream channel sleeve, and the tail is a contraction structure with anti-backflow holes; the head of the outer wall sleeve contains 2 to 4 fan-shaped cavities, connecting the fuel inlet holes of the interlayer sleeve and the main fuel inlet holes; the interior of the twisted plate section is a twisted plate structure composed of multiple groups of bent plates with different rotation bending angles, and the aspect ratio of the bent plates is 1 to 3. The present invention reduces the cross-sectional area of ​​the mainstream channel and increases the air flow velocity. The kidney-shaped vortex formed at the throat can enhance the mixing process of the explosive mixture. At the outlet of the contraction section of the interlayer sleeve, the cross-sectional area of ​​the channel increases suddenly, and the increased turbulence intensity further enhances the mixing effect, and finally flows through the orthogonally arranged curved plates to obtain a uniformly mixed explosive mixture. When the combustion chamber is working stably, the torsion plate section generates shock wave reflections that can effectively reduce the total backflow pressure, and a part of the backflow gas forms a radial air curtain through the anti-backflow hole to block the high-pressure gas, and changes the flow direction of the other part of the gas, thereby playing a better backflow isolation role.

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.

The invention relates to the technical field of cell culture, and particularly discloses a continuous cell culture method based on a culture mixed model, which comprises the following steps: acquiring cell culture environment data; segmenting the environment data according to preset culture time, and calculating statistical characteristics and analysis characteristics of the environment data in each culture time period; performing factor analysis on the statistical characteristics to obtain culture characteristics; carrying out integrated analysis on the analysis features to obtain mixed features; classifying the culture features into a plurality of culture types, and establishing an identification rule based on the culture features of the category center; classifying the mixed features into a plurality of mixed types by using database analysis, and establishing a judgment rule based on the mixed types of professional judgment; combining the recognition rule and the judgment rule to establish a composite judgment rule; and collecting and inputting current cell culture data, and outputting a cell culture mode based on the composite discrimination rule. By means of the culture method, the mixed state of cell culture can be efficiently adjusted, and therefore the success rate of continuous cell culture is increased.

The invention discloses a special-shaped central cone with the function of suppressing infrared radiation and strengthening mixing, including a central cone located in the inner channel of the engine, a mixing tube is provided at the tip of the central cone extending along the airflow direction, one end of the mixing tube is rotatably matched with the tip of the central cone, and a tail cone is provided at the other end, the mixing tube is spiral, so that the body-attached incoming flow of the central cone generates circumferential velocity and strengthens mixing, the windward surface area of ​​the tail cone is larger than the mixing tube, and the tail cone is used to generate reflux of the inner channel airflow, and reduce the engine wake length by strengthening mixing. The invention can effectively strengthen mixing to shorten the length of the nozzle wake, and strengthen heat dissipation, so that the temperature is reduced faster.

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.

The invention belongs to the technical field of design of circumferential flame stabilizers in aero-engines, and particularly relates to a circumferential flame stabilizer in an aero-engine, which comprises a U-shaped outer groove, a U-shaped inner groove, a U-shaped outer culvert gas partition plate and a tail plate, an inner air inlet is formed in the front end of the U-shaped outer groove; the U-shaped inner groove is formed in the U-shaped outer groove; the two U-shaped outer culvert gas partition plates are connected between the inner side of the U-shaped outer groove and the outer side of the U-shaped inner groove; an inner culvert air flow channel is formed between the two U-shaped partition plates and is communicated with the inner culvert air inlet; the tail plate is arranged in the U-shaped outer groove, and a plurality of longitudinal fuel gas outflow seams are formed in the tail plate; the two side edges of the tail plate are connected to the inner side of the U-shaped outer groove; the side wall of the tail plate is connected to an opening of the U-shaped inner groove, and a fuel gas circulation channel is formed between the side wall and the U-shaped inner groove.

The invention discloses an inclined jet circulation interstage combustion chamber and low-pressure turbine guide vane coupling test device, and relates to the technical field of aero-engine experiment devices, the inclined jet circulation interstage combustion chamber and low-pressure turbine guide vane coupling test device comprises a combustion chamber test section and a guide vane test section, and inner and outer casings of the guide vane test section and the combustion chamber test section are fixedly connected through flanges and screws; the other end of the guide vane test section is fixedly connected with the tail gas section through a flange and a screw. According to the inclined-spraying circulation interstage combustion chamber and low-pressure turbine guide vane coupling test device, the oil spraying piece extends into the flame tube at a certain angle to supply oil, and the inclined holes are formed in all parts of the flame tube to supply air, so that the residence time of fuel in the combustion chamber is prolonged, the combustion efficiency is improved, and the design concept of the interstage combustion chamber of pneumatic organization is realized; and a temperature sensor, a pressure sensor and a flue gas analysis device are arranged for data collection, and the method has important significance for analyzing related performance indexes of coupling of the oblique-spraying circulation interstage combustion chamber and the low-pressure turbine guide vane.

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.

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.