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31results about How to "Increase velocity gradient" patented technology
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Device and method for promoting interaction of fine particles in smoke of coal-fired boiler
The invention relates to a device and method for promoting interaction of fine particles in smoke of a coal-fired boiler.The device is characterized by comprising a rectangular channel, a shrinking and expanding throat, a turbulence clustering chamber and a smoke outlet, the rectangular channel serves as a smoke inlet, the shrinking and expanding throat comprises a gradually-shrinking part and a gradually-expanding part, the gradually-shrinking part is connected with the rectangular channel, the gradually-expanding part is connected with one end of the turbulence clustering chamber, and the smoke outlet is formed in the other end of the turbulence clustering chamber and connected with a subsequent dust removing device; a plurality of rectangular fins are arranged in the turbulence clustering chamber, every two rectangular fins form a set, n sets of fins are arranged, n is larger than or equal to 2, the two rectangular fins of each set are in a splay shape, the small opening end of the splay shape faces the smoke flow incoming direction, and the n sets of rectangular fins are sequentially arranged in the turbulence clustering chamber in the smoke flow incoming direction; an included angle ranging from 20 degrees to 60 degrees is formed between the rectangular fins and the smoke flow incoming direction, and the proportion of the length, in the width direction, of the turbulence clustering chamber to the diameter of the throat part of the shrinking and expanding throat is 6:5.
Owner:HEBEI UNIV OF TECH
Inclined pipe and clarifying/precipitating device for separating mud from water
ActiveCN102078711AImprove separation efficiencyEasy to separateSedimentation settling tanksFlocculationWater quality
The invention relates to the improvement of a separation inclined pipe and a clarifying / precipitating device for clarifying and precipitating in a water treatment process, which is characterized in that parallel opposite wave plates which form an inclined pipe are oppositely and adjacently arranged at intervals; the adjacent space is provided with separated inclined plate strips which are arranged up and down at intervals; and the water inlet and outlet of the inclined pipe and the separated inclined plate strips are parallel or approximately parallel. Compared with the mud-water separation of an incongruous flow of the existing inclined plate and inclined pipe, the inclined pipe provided by the invention has higher surface load, higher mud-water separation efficiency and better mud-waterseparation effect and can effectively separate tiny suspended matters which can not be precipitated and separated originally, the quality of the separated water is better, the muddy matters are removed completely, and the treatment is more stable. The clarifying / precipitating device provided by the invention can enhance the efficiency by above 30% and can obviously improve the water quality. The invention adopts grid turbulence flocculation, can be beneficial to improvement of the quality of the clarified / precipitated water and can realize basically powerless flocculation. The separation inclined pipe and the clarifying / precipitating device provided by the invention can be used for clarifying in various water supply treatments and recycled water treatments and for precipitating in sewage treatment.
Owner:JIANGSU NEW EPOCH ENVIRONMENTAL PROTECTION
Integrated device and method for efficient magnesium ammonium phosphate crystallization and solid-liquid separation
InactiveCN109928542AEfficient crystallizationEasy to separateSedimentation separationMultistage water/sewage treatmentWater dischargeSludge
Belonging to the technical field of sewage recycling treatment, the invention relates to an integrated device and method for efficient magnesium ammonium phosphate crystallization and solid-liquid separation. A mixed reaction crystallization zone is connected to water intake pumps; a solid-liquid separation zone is disposed between an inner cylinder and an outer cylinder; a buffer zone is under the mixed reaction crystallization zone; an MAP sludge zone is disposed in a cone at the bottom of a reactor, and the bottom is connected to a large aperture valve; a water outlet zone is arranged at the top of the reactor, and employs an overflow water discharge way. The reactor operation includes crystallization reaction and solid-liquid separation processes. The reactor device adopts rapid mechanical stirring way to accelerate crystallization reaction, thus improving the reactor treatment capacity; at the same time, a baffled continuous flow treatment way with the same inflow and outlet waterdirection is employed to prolong the flow path of materials in the reactor, so that the crystallization reaction and solid-liquid separation process can be more complete; by setting an inclined platein the solid-liquid separation zone, efficient solid-liquid separation can be achieved, and MAP loss and secondary pollution can be avoided during water discharge.
Owner:BEIJING UNIV OF TECH
High-pressure rotational flow mixing device
InactiveCN102698625AIncreased turbulence areaMix well and evenlyFlow mixersMixer accessoriesWear resistantSpray nozzle
The invention provides a high-pressure rotational flow mixing device. The main mixing chamber of the high-pressure rotational flow mixing device is formed by connecting and combining a cylindrical mixing chamber and a conical mixing chamber in series; a liquid inlet pipe is connected with the cylindrical mixing chamber; the liquid inlet pipe is internally provided with a nozzle which can resist a pressure of larger than 10MPa; a solid phase charging opening is formed above the cylindrical mixing chamber; the axis of the solid phase charging opening is perpendicular to that of the nozzle; the outlet of the conical mixing chamber is provided with a mixing baffle plate; the baffle plate consists of 2-6 blades which are distributed at the outlet and have the angle from 20 degrees to 60 degrees relative to the horizontal plane; and the outlet of the conical mixing chamber is connected with the inlet of a constant-current elbow pipe; the elbow pipe is of a diameter-changing structure, wherein the elbow pipe inlet diameter D1 / the elbow pipe outlet diameter D2=1.5-1.8, and the curvature radius of the central axis of the elbow pipe R / D=3.0-3.5. The inner wall of the mixing chamber is sprayed with a wear-resistant material mixed with solid particles, so that the abrasive resistance of a chamber body can be improved, the concavity of the spraying surface can be increased, the turbulent condition in the mixing chamber can be enhanced, and the mixing efficiency can be improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Draining stirring paddle
ActiveCN108246143AIncrease velocity gradientImprove the mixing effectTransportation and packagingRotary stirring mixersEngineeringMixing effect
The invention belongs to the technical field of stirring paddles and discloses a draining stirring paddle. The draining stirring paddle comprises a stirring shaft, a disc and paddles, wherein the center of the disc is sheathed on the stirring shaft; the paddles are arranged on the disc along the circumferential direction, draining holes are formed on the surfaces of the paddles and the surfaces ofthe paddles are the wavy structures. The draining stirring paddle disclosed by the invention has the beneficial effects that in the rotation process of the high-efficiency draining stirring paddle, after penetrating through the draining holes, fluid can form numerous high-speed jets behind the paddles with the wavy structures, and also can form impact flow to damage the periodic motion of fluid in a mixed isolation area, so that the speed gradient of the fluid in a stirring groove is increased, the mixing effect of materials is improved, the mixing time of the materials is shortened, and compared with the existing stirring equipment, the draining stirring paddle has higher stirring efficiency.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Secondary-fluid mixing method and mixer for coagulating procedure
InactiveCN1981908AUniform flow fieldSmall difference in velocity gradientSedimentation separationWater/sewage treatment by flocculation/precipitationEngineeringHydraulic retention time
A secondary flow mixing method for the coagulation procedure features that after the coagulant is added to raw water, the raw water is flowing in the pipeline able to generate secondary flow for mixing under the action of secondary flow. Its apparatus is composed of a coagulant adding tube and a secondary flow pipe which may be a spirally coiled hard tube or a flexible tube wound on a cylindrical body.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Pulsation swirler with internally arranged screw rod
ActiveCN107824346AEasy to separateReduce radial rangeReversed direction vortexEngineeringVolumetric Mass Density
Provided is a pulsation swirler with an internally arranged screw rod. The main purpose is to provide swirling separation equipment which is high in separation efficiency, small in equipment size andconvenient to operate and maintain. The pulsation swirler is characterized in that the interrupted screw rod is arranged in the center of a cyclone separator, the interrupted screw rod is of a hollowstructure and is composed of spiral sections and open hole sections in an interval distribution manner, and the spiral rotation direction of the spiral sections is opposite to the rotational flow direction after liquid enters the swirler; a backwash round tube is nested in the interrupted screw rod, open hole sections on the backwash round tube correspond to those of the interrupted screw rod, a top end opening of a hollow part of the interrupted screw rod and the backwash round tube is connected with an overflow port of the swirler, the liquid can enter the internal hollow part through the open hole sections of the screw rod and the backwash round tube, moves upwards and is discharged from the swirler through the overflow port. The swirler can effectively solve the technical problems of small density differences of two-phase media, high viscosity of separation media, low separation accuracy and the like.
Owner:NORTHEAST GASOLINEEUM UNIV
Heat exchange pipe, heat exchanger and air conditioning unit
InactiveCN106052458AImprove heat transfer coefficientImprove heat transfer effectIndirect heat exchangersHeat transfer modificationEngineeringAir conditioning
The invention provides a heat exchange pipe, a heat exchanger and an air conditioning unit. The heat exchange pipe comprises at least one flow disturbing segment and flow disturbing structures. Each flow disturbing structure is arranged in a refrigerating fluid flowing channel of the corresponding flow disturbing segment. According to the heat exchange pipe, the heat exchanger and the air conditioning unit, the flow disturbing segments are arranged on the heat exchange pipe, the flow disturbing structures are arranged in the flowing channels of the flow disturbing segments, and refrigerating fluid flowing through the flow disturbing segments can be disturbed by means of arrangement of the flow disturbing structures; turbulent flow in the flowing channels is enhanced, the velocity gradient in the flowing channels is increased, and then the refrigerating fluid can be fully in contact with the inner wall of the heat exchange pipe; and therefore the heat exchange coefficient of the heat exchange pipe is increased, and the heat exchange performance of the heat exchange pipe, the heat exchanger and the air conditioning unit is improved.
Owner:GREE ELECTRIC APPLIANCES INC
Powder particle sorting device and sorting method
The invention discloses a powder particle sorting device and a sorting method. The powder particle sorting device comprises a storage silo and N groups of sorting units (N is larger than or equal to 1). Each group of sorting unit comprises one inclined plate and two material receiving bins connected in parallel; the storage silo is used for storing powder particles to be sorted; in each group of sorting unit, the inclined plate is used for enabling the powder particles flown out from the storage silo to form a stacking layer on the surface of the inclined plate, and enabling continuously flown-out powder particles to form a flowing layer above the stacking layer when the stacking angle reaches to an angle of repose; each two material receiving bins are used for receiving the powder particles flown out from the flowing layer of the corresponding inclined plate at different flow speed ranges; and the vertical interval between a discharge hole of the storage silo and each inclined plate is not lower than the sum of the maximum thickness of each stacking layer and the thickness of each flowing layer. The sorting method is carried out by utilizing the sorting device. The device and themethod provided by the invention can be used for effectively sorting and collecting the powder particles, and have the advantages of simple structure, good separation effect, multiple functions, portability, high efficiency, durability and the like.
Owner:EAST CHINA UNIV OF SCI & TECH +1
Stirring tank
ActiveCN108714388AImprove stirring efficiencyIncrease velocity gradientRotary stirring mixersTransportation and packagingWave shapeEngineering
The invention discloses a stirring tank and relates to the technical field of a stirring device. The stirring tank comprises a tank body, a stirring shaft, blades and stop plates, the tank body is used for holding to-be-stirred materials, an axis of the stirring shaft coincides with an axis of the tank body, the blades are arranged on the stirring shaft, the stop plates are arranged inside the tank body and positioned on the periphery of the stirring shaft, flow holes are formed in the stop plates, and cross sections of the stop plates are wave-shaped. The stirring tank has the advantages thatduring stirring of the blades, fluid penetrates through the flow holes and forms multiple high-speed jets, by the aid of the stop plates with the wave-shaped cross sections, the high-speed jets can collide with one another to form colliding flows after penetrating the stop plates, velocity gradient of the fluid within stop plate areas in the stirring tank is increased furtherly, flowing conditions in flow stagnating areas behind the stop plates are improved, mixing effect of the fluid is improved, and stirring efficiency of the stirring tank is improved.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Combined unexploded ammunition energy-gathered destruction device
The invention belongs to the field of unexploded ammunition destruction and particularly discloses a combined unexploded ammunition energy-gathered destruction device. The combined unexploded ammunition energy-gathered destruction device comprises an end cover, a shell, a main charge, a metal liner and a detachable head jet energy regulator. The end cover is located at the top of the shell and connected with the shell, the metal liner is arranged on the lower portion in the shell, the shell is loaded with the main charge, and the bottom of the main charge makes contact with the top of the metal liner. When an impact induced explosion mode is adopted to destroy unexploded ammunition, the head jet energy regulator is not arranged at the bottom of the shell, and when a deflagration disintegrating or ignition overburning mode is adopted to destroy the unexploded ammunition, the bottom of the shell is connected with the head jet energy regulator. The combined unexploded ammunition energy-gathered destruction device destroys the unexploded ammunition in situ in a contactless mode and can be used in a combined mode according to the type of the unexploded ammunition and the destruction environment conditions, and the disposal effect of impact induced explosion, deflagration disintegrating or ignition overburning on the exploded ammunition is achieved.
Owner:ARMY ENG UNIV OF PLA
Method for preventing ice-slurry preparing device adopting super-cooling method from generating ice blockage and device thereof
InactiveCN105135776AAchieve enhanced heat transferAvoid ice blockageLighting and heating apparatusIce productionSuper coolingIce storage
The invention discloses a method for preventing an ice-slurry preparing device adopting a super-cooling method from generating ice blockage and a device thereof. An ice-making fluid firstly flows through a fluid pulsation generating device before entering a super cooler, so that flow and pressure of the ice-making fluid generate pulsation; then, the fluid is cooled and super-cooled in the super cooler, and velocity gradient near the wall surface of the super cooler is increased by virtue of the fluid pulsation, so that fluid shearing force is increased, and ice crystal particles are prevented from being adhered on the surface of the super cooler, thereby preventing ice blockage. The device comprises a pulsation generating device, a flow meter, an ice slurry generating device, an ice storage slot, an ice crystal filter device and a related valve. According to the device, the pulsation generating device is mounted in front of the super cooler, so that on one hand, pulsation of the fluid in the super cooler is reinforced, a heat exchange coefficient is increased, formation of an ice layer is avoided, heat exchange thermal resistance is reduced and heat exchange efficiency of the super cooler is integrally improved; and on the other hand, the problem that an ice slurry generating process adopting the super-cooling method is liable to generate ice blockage is solved.
Owner:CENT SOUTH UNIV
Mixing device for various microbeads
The invention discloses a mixing device for various microbeads, and belongs to the technical field of highway road marking. According to the adopted technical scheme, the mixing device for the variousmicrobeads comprises a pre-mixer, distributing nozzle openings and a scattering device, the pre-mixer is of a tubular structure and is internally provided with spiral sheets, the upper end of the pre-mixer serves as a glass microbead inlet, the lower end of the pre-mixer communicates with the upper ends of the multiple distributing nozzle openings, and the lower ends of the distributing nozzle openings communicate with an inlet of the scattering device; and the scattering device comprises a stirring cavity, a scattering cavity, blade wheels, a scattering shaft, a speed adjusting motor, a first transmission wheel and a second transmission wheel, each of the stirring cavity and the scattering cavity is a cavity body with the open upper end, the open lower end and the sealed periphery, and the lower end of the stirring cavity communicates with the upper end of the scattering cavity. The mixing device for the various microbeads is widely applied to the field of road marking.
Owner:山西长达交通设施有限公司
Pulverized coal burner of grading ignition preburning chamber and burning method
PendingCN108758622ASmooth transmissionValidation of the three-high theory for high temperature gradientsPulverulent fuel combustion burnersThermodynamicsCombustor
The invention discloses a pulverized coal burner of a grading ignition preburning chamber and a burning method. The burner comprises a center bluff body, and multistage air spraying pipes for formingthe grading ignition preburning chamber; the center bluff body and multistage secondary air spraying pipes are engaged to sleeve the same axis; the secondary air spraying pipes are engaged step by step to form multistage air distribution preburning chambers for direct flowing of primary air and cyclone flowing of multistage secondary air; air distribution outlets of each stage of preburning chamber and air distribution outlets of the next stage of preburning chamber are arranged at intervals; flame is wrapped in middle; and secondary air from the next stage is used as previous stage of wall air film cooling air. The problems of coking burning loss and low-load stable combustion of a traditional preburning chamber are solved. The lowest stable combustion load can be reduced to 10%; the unburned carbon in flue dust under low load is still lower; the power of an ignition air gun is only 3% of the rated power of the burner; the working time is only about 3 minutes; and the adapted coal types are wider. The burner is simple in structure, convenient to operate and excellent in use effect.
Owner:徐州燃烧控制研究院有限公司 +1
Oxygen supply device for aquaculture
ActiveCN109197745AAddressing the diverse needs of dissolved oxygenGuaranteed survival ratePisciculture and aquariaAquatic productEngineering
The invention discloses an oxygen supply device for aquaculture, and belongs to the technical field of aquaculture. The oxygen supply device comprises a culture tank. The top of the culture tank is provided with an inwardly recessed sliding chute. A water collecting tank is movably connected in the sliding chute. A separator plate is disposed in the culture tank. The surface of the separator plateis provided with a plurality of meshes. An oxygenation device is installed on the upper surface of the separator plate. An air compressor and a circulating pump are respectively disposed at left andright sides of the culture tank and located on supporting frames. Layered oxygen supply is achieved, oxygen requirements of different aquatic products are satisfied, oxygen concentration in culture water can be increased, and impurities in the water can also be filtered to recycle the culture water.
Owner:ZHEJIANG OCEAN UNIV
Agglomeration device for heterogeneous condensation and turbulent agglomeration coupling and application thereof
ActiveCN108159829ALarge particle sizeIncrease exposureAuxillary pretreatmentElectrostatic separationCouplingEllipse
The invention relates to an agglomeration device for heterogeneous condensation and turbulent agglomeration coupling and application thereof. The agglomeration device is generally in a rectangular parallelepiped shape and generally of an axially symmetric structure in the direction of incoming flue gas, the left end of an agglomeration device body is a flue gas inlet and is connected with a desulfurization device, and the right end of the agglomeration device body is a flue gas outlet and is connected with a wet electrostatic precipitator; a plurality of semi-elliptical cylindrical protrusionsare symmetrically arranged on the upper and lower side walls of the rectangular parallelepiped along a central axis of the device body, the upper and lower opposite semi-elliptical cylindrical protrusions serve as a group, there are altogether n groups, and n is greater than or equal to 2; the lowest point of each semi-elliptical cylindrical protrusion faces toward the interior of the device body; a rectangular parallelepiped pin fin is arranged between the first group of semi-elliptical cylindrical protrusions and the flue gas inlet, the center line of the rectangular parallelepiped pin fincoincides with the central axis of the device body, the rectangular parallelepiped pin fin is of a hollow cavity structure, and the upper and lower surfaces of the rectangular parallelepiped pin fin are both provided with a steam nozzle. According to the device, the particle size of ultrafine particles is increased by means of a heterogeneous condensation and turbulent agglomeration coupling mode,and the structure is simple.
Owner:HEBEI UNIV OF TECH
A device for preventing ice blockage in a device for preparing ice slurry by supercooling
InactiveCN105135776BIncreased pulsationHigh shear forceLighting and heating apparatusIce productionSuper coolingFluid shear
The invention discloses a method for preventing an ice-slurry preparing device adopting a super-cooling method from generating ice blockage and a device thereof. An ice-making fluid firstly flows through a fluid pulsation generating device before entering a super cooler, so that flow and pressure of the ice-making fluid generate pulsation; then, the fluid is cooled and super-cooled in the super cooler, and velocity gradient near the wall surface of the super cooler is increased by virtue of the fluid pulsation, so that fluid shearing force is increased, and ice crystal particles are prevented from being adhered on the surface of the super cooler, thereby preventing ice blockage. The device comprises a pulsation generating device, a flow meter, an ice slurry generating device, an ice storage slot, an ice crystal filter device and a related valve. According to the device, the pulsation generating device is mounted in front of the super cooler, so that on one hand, pulsation of the fluid in the super cooler is reinforced, a heat exchange coefficient is increased, formation of an ice layer is avoided, heat exchange thermal resistance is reduced and heat exchange efficiency of the super cooler is integrally improved; and on the other hand, the problem that an ice slurry generating process adopting the super-cooling method is liable to generate ice blockage is solved.
Owner:CENT SOUTH UNIV
Boiler gray water treatment and recycling device
ActiveCN109179778ACleverly structuredHigh recycling efficiencyTreatment involving filtrationMultistage water/sewage treatmentThree stageWater storage tank
The invention discloses a boiler gray water treatment and recycling device. The device comprises a tank shell, three-stage reaction zones, a sedimentation zone and a clear water zone are arranged in the tank shell, a water inlet is arranged in a primary reaction zone, the lower part of the primary reaction zone is provided with a water passing port communicated with a secondary reaction zone, thesecondary reaction zone is communicated with the upper part of a tertiary reaction zone, the lower part of the tertiary reaction zone is communicated with the sedimentation zone, the lower part of thesedimentation zone is provided with a mud collection zone and a mud discharge pipe, the upper part of the mud collection zone is provided with an inclined pipe sedimentation zone, the upper part of the inclined pipe sedimentation zone is provided with an overflow tank communicated with a water discharge tank, the lower part of the clear water zone is provided with a filter bin, the top of the filter bin is connected to an automatic backwashing device, the lower part in the filter bin is provided with a filter zone, the bottom of the filter zone is provided with a water drain port communicatedwith the clear water zone, the clear water zone is connected to a water storage tank through a water outlet pipe, the water discharge tank is communicated with the filter bin through a downcomer, thetail end of the downcomer is provided with a guide cover and the upper part of the guide cover is communicated with the water discharge tank through a gas discharge pipe. The boiler gray water treatment and recycling device has a small footprint and less water usage.
Owner:广西青科环保科技有限公司
Apparatus and method for promoting interaction of fine particles in coal-fired boiler flue gas
InactiveCN105749690BWell mixedPromote heteronucleationAuxillary pretreatmentFlue gasParticle interaction
The invention relates to a device and method for promoting interaction of fine particles in smoke of a coal-fired boiler.The device is characterized by comprising a rectangular channel, a shrinking and expanding throat, a turbulence clustering chamber and a smoke outlet, the rectangular channel serves as a smoke inlet, the shrinking and expanding throat comprises a gradually-shrinking part and a gradually-expanding part, the gradually-shrinking part is connected with the rectangular channel, the gradually-expanding part is connected with one end of the turbulence clustering chamber, and the smoke outlet is formed in the other end of the turbulence clustering chamber and connected with a subsequent dust removing device; a plurality of rectangular fins are arranged in the turbulence clustering chamber, every two rectangular fins form a set, n sets of fins are arranged, n is larger than or equal to 2, the two rectangular fins of each set are in a splay shape, the small opening end of the splay shape faces the smoke flow incoming direction, and the n sets of rectangular fins are sequentially arranged in the turbulence clustering chamber in the smoke flow incoming direction; an included angle ranging from 20 degrees to 60 degrees is formed between the rectangular fins and the smoke flow incoming direction, and the proportion of the length, in the width direction, of the turbulence clustering chamber to the diameter of the throat part of the shrinking and expanding throat is 6:5.
Owner:HEBEI UNIV OF TECH
Aquaculture oxygen supply device
ActiveCN109197745BSpeed up the flowPromotes relative motionPisciculture and aquariaAquatic productOxygen enhanced
The invention discloses an oxygen supply device for aquaculture, which belongs to the technical field of aquaculture, and comprises a breeding box. The top of the breeding box is provided with an inwardly recessed chute, and the inside of the chute is movably connected to a water collection tank. There are several mesh holes, an oxygen increasing device is installed on the upper surface of the partition, an air compressor and a circulation pump are respectively arranged on the left and right sides of the breeding box, and the air compressor and the circulation pump are located above the supporting frame. The device supplies oxygen in layers to meet the oxygen demands of different aquatic products, can increase the oxygen concentration in the aquaculture water, and can also filter impurities in the water, so that the aquaculture water can be recycled.
Owner:ZHEJIANG OCEAN UNIV
A cross-flow stirring paddle
ActiveCN108246143BIncrease velocity gradientImprove the mixing effectTransportation and packagingRotary stirring mixersCircular discEngineering
The invention belongs to the technical field of stirring paddles, and discloses a through-flow stirring paddle. The through-flow stirring paddle includes a stirring shaft, a disc and a paddle, the center of the disc is sleeved on the stirring shaft, the paddle is arranged on the disc along the circumferential direction, and the surface of the paddle is provided with a through-flow hole, and the surface of the paddle is It is a wavy structure. During the rotation of the high-efficiency through-flow stirring paddle of the present invention, after the fluid passes through the through-flow hole, many high-speed jets will be formed behind the blades of the wave-shaped structure, and impact flows will also be formed, which destroys the periodic motion of the fluid in the mixing isolation area. Therefore, the velocity gradient of the fluid in the stirring tank is increased, the mixing effect of the materials is improved, the mixing time of the materials is shortened, and the stirring efficiency is higher than that of the existing stirring equipment.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
A high-efficiency and energy-saving rigid-flexible mixing impeller
ActiveCN106823900BReduce energy consumptionImprove mixing efficiencyTransportation and packagingRotary stirring mixersEngineeringMulti body
The invention provides a high-efficiency energy-saving rigid-flexible combined stirring paddle, which is characterized in that it comprises a stirring shaft, a rigid paddle I, a rigid paddle II, a spring and a perforated flexible sheet. There are two nodes on the stirring shaft. One of the nodes is connected to the rigid impeller I, and the other node is connected to the rigid impeller II. A perforated flexible sheet is connected between the rigid paddle I and the rigid paddle II, and the two ends of the perforated flexible sheet in the length direction are connected to the rigid paddle I and the rigid paddle II through a spring transition. The technical effect of the present invention is unquestionable. During the rotation of the paddle, the energy consumption of the blade is reduced, and the perforated flexible sheet can perform multi-body movement, and many high-speed jets can be generated during the movement of the perforated flexible sheet, increasing the The velocity gradient of the fluid increases the degree of turbulence of the fluid, increases the energy utilization rate of the paddle, and improves the mixing efficiency of the fluid. Moreover, the cost of the stirring device can also be saved.
Owner:CHONGQING UNIV
Inclined pipe and clarifying/precipitating device for separating mud from water
ActiveCN102078711BImprove separation efficiencyEasy to separateSedimentation settling tanksFlocculationWater quality
Owner:JIANGSU NEW EPOCH ENVIRONMENTAL PROTECTION
a mixing tank
ActiveCN108714388BImprove stirring efficiencyIncrease velocity gradientRotary stirring mixersTransportation and packagingEngineeringMixing effect
The invention discloses a stirring tank and relates to the technical field of stirring devices. The stirring tank includes a tank body, a stirring shaft, paddles and baffles, the tank body is used to hold materials to be stirred; the axis of the stirring shaft coincides with the axis of the tank body; the paddles are arranged on the stirring shaft; the baffles are arranged on Inside the tank and located on the outer periphery of the stirring shaft, the baffle plate is provided with flow holes, and the cross section of the baffle plate is wavy. In the stirring tank of the present invention, during the stirring process of the paddle, the fluid passes through the through-flow hole to form many high-speed jets. Since the cross section of the baffle is wavy, the high-speed jets will collide with each other after passing through the baffle to form a collision flow. Therefore, the velocity gradient of the fluid in the baffle area in the stirring tank is further increased, the flow condition in the flow stagnation area behind the baffle is improved, the mixing effect of the fluid is improved, and the stirring efficiency of the stirring tank is improved.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Micron or nano aerosol particle enrichment device
ActiveCN113954364AIncrease velocity gradientEnhanced Safman lift effectAdditive manufacturing apparatusManufacturing auxillary operationsMaterials sciencePhysics
The invention belongs to the technical field of aerosol enrichment, and discloses a micron or nano aerosol particle enrichment device which comprises an aerosol particle sample adding micro-channel, an aerosol particle enrichment micro-channel and a sheath airflow micro-channel. The airflow outlet side of the aerosol particle sample adding micro-channel is connected with the airflow inlet side of the aerosol particle enrichment micro-channel; a through hole is formed in the side wall of the aerosol particle enrichment micro-channel and is connected with the airflow outlet side of the sheath airflow micro-channel; a preset included angle is formed between the sheath airflow micro-channel and the aerosol particle enrichment micro-channel, the preset included angle is an acute angle, and the airflow inlet side of the sheath airflow micro-channel extends in the direction from the aerosol particle sample adding micro-channel to the aerosol particle enrichment micro-channel. By arranging the reverse sheath airflow micro-channel, micron or nano aerosol particles quickly move to the center position of the aerosol particle enrichment micro-channel, efficient enrichment is achieved, and great significance is achieved for improving the 3D printing precision and improving the performance of micro-nano components.
Owner:XI AN JIAOTONG UNIV
A V-type high-efficiency clarifier
ActiveCN109534469BImprove space utilizationReduce site occupancyWater/sewage treatment by flocculation/precipitationWater/sewage treatment apparatusFlocculationProcess engineering
Owner:郑州江宇水务工程有限公司
Fluid mixer and flow guiding device
PendingCN108404698AWell mixedIdeal turbulenceFlow mixersTransportation and packagingEngineeringFluid input
The invention relates to a fluid mixer, which comprises a mixer shell. The mixer shell comprises a front wall, a rear wall and a peripheral wall; the front wall and the rear wall are arranged oppositely and are connected through the peripheral wall so as to form a mixing chamber; a fluid input end is arranged on the front wall; a fluid output end is arranged on the peripheral wall; the fluid inputend is perpendicular to the fluid output end. A flow guiding device comprises a flow guiding converter and the fluid mixer. The fluid output end is connected with an input end of the flow guiding converter in a matching way; the fluid mixer is used for uniformly mixing a fluid so as to obtain a mixed fluid; the flow guiding converter is used for lowing the turbulivity of the mixed fluid to a preset range. According to the fluid mixer and the flow guiding device provided by the invention, the fluid can be uniformly mixed so as to be fully mixed, uniform in composition and ideal in turbulivity,the occurrence of the phenomenon of diffused flying of pollutants is reduced, and the sintering processing efficiency is ensured.
Owner:苏州倍丰智能科技有限公司
A built-in screw-rod pulsating cyclone
A built-in screw type pulsating cyclone. The main purpose is to provide a cyclone separation device with high separation efficiency, small device size and convenient operation and maintenance. It is characterized in that: a discontinuous screw rod is built in the center of the cyclone separator, and the discontinuous screw rod is a hollow structure, which is composed of a helical section and an opening section distributed at intervals. The direction of the swirling flow behind the device is opposite; a backwash circular tube is nested inside the intermittent screw rod, and the opening section on the backwash circular tube corresponds to the opening section of the intermittent screw rod. The top opening of the hollow part of the screw rod and the backwashing tube is connected with the overflow port of the cyclone. Through the opening section of the screw rod and the backwashing tube, the liquid can enter the inner hollow part and move upward through the overflow port. Drain the cyclone. This cyclone can effectively solve technical problems such as small density difference between two-phase media, high viscosity of separation medium and low separation precision.
Owner:NORTHEAST GASOLINEEUM UNIV
V-shaped efficient clarifier
ActiveCN109534469AImprove space utilizationReduce site occupancyWater/sewage treatment by flocculation/precipitationWater/sewage treatment apparatusFlocculationClarifier
The invention discloses a V-shaped efficient clarifier, which belongs to the technical field of water treatment, aims at solving the problems of great occupied field and low clarification efficiency of a clarification pool in the prior art and provides a clarification pool with the advantages of small occupied area and higher water clarification efficiency. The V-shaped efficient clarifier comprises a clarification pool body, wherein the upper end and the bottom of the clarification pool body are respectively provided with a water inlet pipe and a mud discharging pipe; the top of the clarification pool body is provided with a plurality of separation plates for separating the clarification pool body into a flocculation region and a classification region; the flocculation region is arrangedat the outer side of the clarification region; the top of the clarification region is provided with an inclined pipe precipitation region; an opening is formed in the bottom of the clarification region, and the opening is communicated with the flocculation region. A zigzag flocculation gallery is also installed, so that the flocculation is efficient; the occupied space is saved; the clarificationeffect is excellent.
Owner:郑州江宇水务工程有限公司
Primary air rich-lean separation multi-stage turbulent burner and working method thereof
PendingCN113819461AStable air volumeGuaranteed oxygenPulverulent fuel combustion burnersIndirect carbon-dioxide mitigationThermodynamicsCombustor
The invention discloses a primary air rich-lean separation multi-stage turbulent burner and a working method thereof, and belongs to the technical field of pulverized coal burners. The primary air rich-lean separation multi-stage turbulent burner comprises a central air pipe, a primary air channel, an inner secondary air channel and an outer secondary air channel which are sequentially arranged from inside to outside; a pulverized coal dense-thin separation device and a primary air channel partition plate are arranged in the primary air channel; inner primary air rotational flow blades are arranged in the inner primary air channel, outer primary air rotational flow blades are arranged in the outer primary air channel, and the rotational flow strength of the outer primary air rotational flow blades is larger than that of the inner primary air rotational flow blades; secondary air rotational flow blades are arranged in the inner secondary air channel; and an outlet of the outer primary air channel is provided with an outer primary air flaring, an outlet of the inner secondary air channel is provided with an inner secondary air flaring, and an outlet of the outer secondary air channel is provided with an outer secondary air flaring. The problems that an existing pulverized coal boiler is low in pulverized coal burn-off rate, difficult to adapt to inferior coal, poor in combustion stability and high in NOx emission amount are solved through dense-thin separation and a multi-stage rotational flow structure.
Owner:XI AN JIAOTONG UNIV
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