Product
Feature
Quick Research
Generate reliable direction feasibility study reports for your R&D in just a few steps.
Technical Q&A
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
Find Solutions
As an expert in R&D theories, this can generate solutions to your technical problems instantly.
Evaluate Feasibility
Analyze your overall solution with one click, know your potential R&D risks in advance.
Monitor Landscape
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
38results about How to "Realize independent control" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
High-flux super-resolution focal spot generation device based on optical fibers
The invention discloses a high-flux super-resolution focal spot generation device based on optical fibers. The high-flux super-resolution focal spot generation device firstly generates a suppression light beam array, and each path of laser is coupled to a vortex optical fiber, so that a light beam carrying a vortex phase can be formed, and the device cost and the system space can be reduced; thenspecific intensity modulation is carried out through a multi-channel acoustic modulator to generate high-flux dark spots; meanwhile, an exciting light beam array is coupled into an exciting path optical fiber array, and then specific intensity modulation is carried out through a multi-channel acoustic optical modulator to generate solid light spots; and finally, the two light beam arrays are combined, two overlapped light spot arrays are formed through focusing of an objective lens, and a super-resolution focal spot array is formed through the inhibition effect of the dark spots on the actionrange of the solid light spots. According to the high-flux super-resolution focal spot generation device, independent regulation and control of the dark spots can be realized to realize high-flux laser direct writing processing and parallel super-resolution microscopic imaging, and the processing speed and the imaging speed are effectively improved; and no extra modulation device is needed, and the system structure is compact.
Owner:ZHEJIANG LAB
Sea and air amphibious propeller
ActiveCN108839800AImprove propulsion performanceSwitch freelyPropellersPropulsion power plantsDucted propellerAerospace engineering
The invention provides a sea and air amphibious propeller. The propeller comprises a ducted propeller stator, air propellers, air propeller rotors, ducted propellers and ducted propeller rotors, wherein a group of magnets is fixed on the air propeller rotors and the ducted propeller rotors respectively, the air propeller rotors and the ducted propeller rotors rotate coaxially and are nested to thesame ducted propeller stator, and two coils corresponding to the air propeller rotors and the ducted rotors respectively are embedded into the ducted propeller stator. The air propellers are used foraerial propulsion, water propellers are used for underwater propulsion, and the both can work independently. During underwater propulsion, the air propellers are folded back and rotated at a lower speed to eliminate the resistance to the air propellers, and the shaftless ducted propellers work to generate propulsion. In the air, the air propellers are unfolded and rotate to generate propulsion, and the ducted propellers assist the operation. The shaftless ducted propellers have good propulsion performance under water, the air propellers are suitable for working in the air, and the air propellers are combined with the shaftless ducted propellers to realize efficient propulsion and free switching under water and in the air.
Owner:HARBIN ENG UNIV
Preparation method of three-frequency high-density plasma assisted magnetron sputtering film
ActiveCN103866257AIncrease plasma densityHigh ion fluxVacuum evaporation coatingSputtering coatingHigh plasmaVery high frequency
The invention discloses a preparation method of a three-frequency high-density plasma assisted magnetron sputtering film. The film is prepared from high-density plasmas enhanced by the inductively coupled discharge of a 13.56 MHz radio-frequency coil and the discharge of a 27.12 MHz radio-frequency substrate table by using a 60 MHz VHF (very high frequency) magnetron sputtering device. According to the novel preparation method of the three-frequency high-density plasma assisted magnetron sputtering film, disclosed by the invention, in the process of sputtering, by using three-frequency discharge, a high plasma density, a high ionic flux and a wide ion energy are obtained, so that defects that plasmas are low in density and low in activity in the process of reaction sputtering in the prior art are overcome, compositions of an obtained product film are close to those in theory, and properties are in line with actual requirements, thereby facilitating the industrialized production and application of advanced films.
Owner:SUZHOU UNIV
Broadband dual-frequency dual-circularly polarized reflective array antenna with independently controllable wave beams
ActiveCN113078477AAchieve independent controlRealize independent controlAntenna earthingsAntenna couplingsCommunications systemSoftware engineering
The invention relates to the field of wireless communication system electronic devices, and discloses a broadband dual-frequency dual-circularly-polarized reflective array antenna with independent and controllable wave beams. The antenna comprises a dual-band broadband circularly-polarized feed source and a plane reflective array, and is characterized in that the dual-band broadband circularly-polarized feed source is placed near a focal plane of the plane reflective array; the planar reflection array comprises low-frequency and high-frequency dual-circular polarization phase shift units which are arranged in a common-caliber periodic staggered manner, and each dual-circular polarization phase shift unit comprises a circular patch layer, a metal ground layer etched with an I-shaped gap, two microstrip line layers with different lengths, a metal bottom plate layer and the like. According to the invention, the dynamic phase and the rotation phase are combined, the left-handed phase and the right-handed phase are independently regulated and controlled at the K wave band and the Ka wave band at the same time, and the final dual-frequency broadband characteristic of the reflective array antenna is ensured by adopting the forms of cross-shaped slot processing, microstrip line slot coupling patches and the like; and the antenna has the advantages of low profile, easy processing, easy integration, low cost and the like, and has important application prospects in the fields of satellite communication and the like.
Owner:SOUTHEAST UNIV +1
Double-path parallel super-resolution laser direct writing device based on light field regulation and control
ActiveCN113189846ARealize independent controlHigh speedIncreasing energy efficiencyPhotomechanical exposure apparatusEnergy regulationLight spot
The invention discloses a double-path parallel super-resolution laser printing device based on light field regulation and control, and belongs to the field of super-resolution laser micro-nano machining. Laser emitted by a direct-writing laser sequentially passes through a direct-writing path collimator, a direct-writing path anti-drifting system, a direct-writing path energy regulation and control module and a direct-writing path wavefront regulation and control module to enter a beam combining module; laser emitted by the suppression path laser sequentially passes through the suppression path collimator, the suppression path anti-drifting system, the suppression path energy regulation and control module and the suppression path wavefront regulation and control module to enter the beam combining module; the direct writing light is modulated in the direct writing path wavefront regulation and control module, the suppression light is modulated in the suppression path wavefront regulation and control module, and two pairs of direct writing-suppression light spot combinations are formed after the two paths of light are combined. According to the invention, through partition multiplexing of the SLM and utilization of the polarization selection characteristic of the SLM, double focusing light spots are realized on the basis of a direct writing light beam and a suppression light beam, independent regulation and control of energy of each light spot are realized, and the speed of a laser direct writing printing system is doubled.
Owner:ZHEJIANG LAB +1
Preparation method of ordered ferroelectric topological domain structure array
ActiveCN110473873ARealize independent controlSolid-state devicesNanotechnologySingle crystalNanodot array
The invention relates to a preparation method of an ordered ferroelectric topological domain structure array. The preparation method comprises the following steps of: S1, depositing an SRO conductivelayer as a bottom electrode on an STO single crystal substrate in a (001) direction by adopting a pulse laser deposition method; S2, selecting a PZT target material with a Zr:Ti ratio being equal to 7:3, depositing a layer of diamond-phase PZT film on the SRO conductive layer by adopting the pulse laser deposition method; and S3, transferring the single-layer PS spheres to the surface of the PZT film to serve as a mask plate, then performing etching treatment by using oxygen plasma, then placing the mask plate in an ion beam etching machine for etching, and finally removing the residual mask plate of the single-layer PS spheres to obtain an ordered rhombic-phase PZT nano dot array which is a central topological domain structure. The ordered ferroelectric topological domain structure arrayprepared by the method reaches the nanoscale, and is a high-density ordered nano dot array structure. Ferroelectric topological domain structures are independent to each other, can be regulated and controlled by an external electric field, and have good thermal stability.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Wellhead combustible gas safe operation method based on adjustable annular suction discharge aiding
ActiveCN110566162AImprove drilling safetyConducive to the advantages of drilling speed increaseLiquid/gas jet drillingWell/borehole valve arrangementsLine tubingWell drilling
The invention provides a wellhead combustible gas safe operation method based on adjustable annular suction discharge aiding. A wellhead safe operation system based on adjustable annular suction discharge aiding is used for achieving a suction effect on wellhead combustible gas. The system comprises a sand discharging pipeline, an adjustable annular suction discharge aiding mechanism, an ignitiondevice, a gas injection unit and a first gas injection manifold, wherein the adjustable annular suction discharge aiding mechanism connects a wellhead with the sand discharging pipeline; inert gas generated by the gas injection unit is provided for the suction discharge aiding mechanism by the first gas injection manifold so as to form a negative pressure suction effect; and the ignition device isarranged at the outlet end of the sand discharging pipeline and ignites the combustible gas discharged from the sand discharging pipeline. The wellhead combustible gas safe operation method based onthe adjustable annular suction discharge aiding has the advantages that a dual-passage suction and gas injection adjustable and controllable nitrogen gas injection suction method can be realized; thesafety risk of natural gas overflowing from the wellhead during open well operation such as trip operation and rubber core replacement performed under the condition of production of a small amount ofnatural gas from the stratum is eliminated; the field operation safety is obviously improved; the gas drilling speed acceleration advantage realization is facilitated; and the method is applicable tothe field of counterflush drilling.
Owner:CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD +1
Double-output-shaft independent speed regulating combined motor
PendingCN109639083AIndependent speed adjustmentIndependent power adjustmentDynamo-electric machinesBrushless motorsElectric machine
The invention relates to a double-output-shaft independent speed regulating combined motor, belonging to the technical field of brushless motors. According to the invention, two rotors are arranged inthe motor and are respectively driven by corresponding stators, the independent regulation of rotating speeds and power of two output shafts can be realized, the relative positions of the two outputshafts can be accurately ensured, and two motor shafts can be coaxially or parallely arranged or can be arranged with an angle. The motor volume can be very small, the independent adjustment requirements of the output shafts of a double-output-shaft brushless motor are satisfied, the accurate relative position of the output shafts is ensured, the motor volume is minimized, and the motor has far-reaching implication in equipment miniaturization, precise control and cost reduction.
Owner:南京博思闻科技有限公司
Bismuth telluride nanowire with zigzag structure and preparation method of bismuth telluride nanowire
PendingCN112340708ALower lattice thermal conductivityHigh thermoelectric figure of meritPolycrystalline material growthMetal selenides/telluridesNanowireBismuth telluride
The invention discloses a bismuth telluride nanowire with a zigzag structure and a preparation method of the bismuth telluride nanowire. A solvothermal synthesis method is adopted; tellurium oxide, polyvinylpyrrolidone and potassium hydroxide are mixed and dissolved in ethylene glycol; oxygen in an obtained solution is removed in an inert gas protection environment; the solution is heated to a certain temperature, hydrazine hydrate is added, and heat preservation is conducted for a period of time; and a mixed solution of sodium bismuthate pentahydrate and ethylene glycol is added, and at the same time, injecting a certain amount of concentrated hydrochloric acid, and performing a reaction to obtain the bismuth telluride nanowire with the zigzag structure. According to the bismuth telluridenanowire with the zigzag structure and the preparation method of the bismuth telluride nanowire of the invention, the lattice thermal conductivity of the material can be significantly reduced under the condition of maintaining high conductivity.
Owner:XI'AN PETROLEUM UNIVERSITY
Total-space electromagnetic regulation metasurface and metasurface unit
PendingCN114583462ARealize independent controlEasy to controlAntennasSoftware engineeringReflected waves
The invention discloses a total-space electromagnetic regulation and control metasurface and a metasurface unit. The metasurface comprises a first electromagnetic wave coupling / decoupling part, a transmission layer and a second electromagnetic wave coupling / decoupling part which are arranged in sequence. A first patch is arranged on the surface of the first electromagnetic wave coupling / decoupling part; the transmission layer is conducted with the first electromagnetic wave coupling / decoupling part and the second electromagnetic wave coupling / decoupling part through the transmission line structure; the transmission layer is provided with an adjustable element which is used for dividing guided electromagnetic waves in the transmission line structure into reflected waves and transmitted waves and regulating and controlling the amplitude and the phase; and the second electromagnetic wave coupling / decoupling part is provided with a second patch. The invention aims to overcome the problem that rapid and accurate electromagnetic wave regulation and control cannot be realized in a conventional metasurface, and provides a method for regulating and controlling the amplitude phase and the polarization state of transflective electromagnetic waves. Through the method, the amplitude and phase of electromagnetic waves in a specific polarization state can be adjusted in real time.
Owner:XI AN JIAOTONG UNIV
Wellhead safety operation method based on axial oblique-injection and suction drainage assistance
ActiveCN110500064AImprove drilling safetyConducive to the advantages of drilling speed increaseFluid removalSealing/packingLine tubingWell drilling
The invention provides a wellhead safety operation method based on axial oblique-injection and suction drainage assistance. The operation method adopts a wellhead safety operation system based on theaxial oblique-injection and suction drainage assistance to realize the suction effect on combustible gas at a wellhead; the system includes a sand discharge pipeline, an axial oblique-injection and suction drainage assistance mechanism connecting the wellhead and the sand discharge pipeline, an ignition device, a gas injection unit and a first gas injection manifold; the first gas injection manifold provides inert gas produced by the gas injection unit to the inclined injection suction and drainage mechanism to form the negative pressure suction effect; and the ignition device is arranged at the outlet end of the sand discharge pipeline and ignites combustible gas discharged from the sand discharge pipeline. According to the operation method, a nitrogen injection suction method with doublechannel suction and adjustable gas injection can be realized, the safety risk of natural gas overflowing from the wellhead when "tripping operation and rubber core replacing" and other open well operation are carried out under the condition that a small amount of natural gas is produced from a formation is reduced, the safety of field operation is significantly improved, the operation method facilitates the development of gas drilling speed-up advantages, and is applicable to the field of reverse circulation drilling.
Owner:CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD +1
Preparation method of radio frequency and very high frequency based double frequency magnetron sputtering film
ActiveCN103866258AAchieve decouplingSolve the shortcomings of difficult independent regulationVacuum evaporation coatingSputtering coatingSputteringDouble frequency
The invention discloses a preparation method of a radio frequency and very high frequency based double frequency magnetron sputtering film, which is implemented by using a double-target magnetron sputtering device, and comprises the following steps: (1) installing targets for preparing a two-component film, and putting a cleaned substrate into a vacuum chamber, wherein the distance between the center of a sputtering target to the center of a substrate platform is 130 mm; (2) vacuumizing the vacuum chamber to be 5*10<-4> Pa, then feeding argon into the vacuum chamber, and under the condition that the flow of argon is 30 sccm, keeping the pressure of the vacuum chamber at 5 Pa; (3) applying a very high frequency power supply with a frequency of 60 MHZ on one of the targets, adjusting the very high frequency power to be 150 W, applying a radio frequency power supply with a frequency of 2 MHZ on the other target, and adjusting the radio frequency power to be 50-250 W; preparing a two-component film on the substrate by sputtering. By using the frequency decoupling performance between radio frequency and very high frequency, the respective independent control on the ion energies of double sputtering targets is realized, and the approximation of plasma properties (energy, density) of each sputtering target is avoided, thereby facilitating the independent control on each component sputtering.
Owner:SUZHOU UNIV
Gantry type manipulator removable spinal surgery robot
The invention relates to a gantry type manipulator removable spinal surgery robot. The gantry type manipulator removable spinal surgery robot comprises an operation table, X-direction guide control devices are arranged on two sides of the operation table in pairs, main swing arms are installed on the X-direction guide control devices through a main connecting base, main push bars are further installed on the main connecting base, each main push bar is connected to the lower end of each main arm to push the main arm to swing, the upper end connected with the main swing arms, of the main connecting base is connected with main positioning locks, a Y-direction guide device is further connected onto the main swing arms, a Z-direction guide control device is connected onto the Y-direction guide device, and main gantry manipulators are formed. The robot can map the surface coordinates of vertebrae in vitro, which is convenient to collect coordinate data of the bone surface accurately and rapidly, random switching of orthopaedic powder, pliers, soft tissue resection tools and other instruments can be realized through a drum instrument bank under the condition of 'heavy load', and precision operation of various different spinal surgery can be completed in the whole process; the advantages of large bearing capacity, good rigidity, dexterous structure, strong expansibility and the like are achieved.
Owner:SUZHOU DIANHE MEDICAL TECH
Air treatment method and system
InactiveCN111219802AMeet processing needsAvoid Blending LossMechanical apparatusLighting and heating apparatusAir filterAir treatment
The invention relates to an air treatment method and system. The method comprises the following steps that the temperature and humidity levels of fresh air reach the required state through a make-up air unit, the fresh air is filtered preliminarily and then conveyed into an air supply interlayer of a clean room after being filtered through a high-efficiency filter, and the fresh air is mixed withreturn air treated through a return air treatment dry cooling coil and a return air filter for air supply. According to the air treatment method and system, the requirement for the high-efficiency filter can be lowered, the treatment energy consumption is reduced, the air treatment requirement of a clean occasion is better met, and high-efficiency construction of a clean environment is achieved.
Owner:TSINGHUA UNIV
Cradle type massage armchair
PendingCN113367515AIncreased load-bearing capacityRealize independent controlStoolsAdjustable chairsSitting PositionsEngineering
Owner:SHANGHAI RONGTAI FITNESS TECH DEV CO LTD
A radial multi-beam slotted waveguide slot antenna array for microwave applications
ActiveCN110061348BHigh gainGood orientationParticular array feeding systemsRadiating elements structural formsSoftware engineeringWaveguide
The invention discloses a radial multi-beam gap waveguide slot antenna array applied to a microwave band. The radial multi-beam gap waveguide slot antenna array comprises three parts of a gap waveguide radial feeding network, a slot antenna array and a coaxial-gap waveguide conversion structure. By a design of a bottom-layer feeding network and each slot sub-array in a top layer in a radial direction, generation of random numbers of radial wave beams can be achieved, the size and the direction of each wave beam are independently adjustable, and a beam split phenomenon is proposed according toa certain radial asymmetric construction mode of the antenna.
Owner:SOUTHEAST UNIV
Broadband dual-circularly-polarized reflective array antenna and equipment based on reconfigurable dual-function layer
ActiveCN113285241ASmall sizeAchieving Phase Shift ResponseAntennasCommunications systemPhase shifted
The invention relates to the field of wireless communication system electronic devices, and discloses a broadband dual-circularly-polarized reflective array antenna and equipment based on a reconfigurable dual-function layer. The antenna comprises an X-band broadband dual-circularly-polarized feed source and a plane reflective array, the dual-circularly-polarized feed source is placed near a focal plane of the plane reflective array, the plane reflective array is composed of two function-layer-stacked dual-circularly-polarized phase shift surfaces, and the dual-circularly-polarized phase shift surfaces comprise a left-hand circular polarization selection surface and a right-hand circular polarization reflection surface. According to the invention, broadband dual-circularly-polarized beam regulation and control are realized in an X wave band by using polarization selection characteristics and circular polarization rotation phases of the polarization selection surface, a left-hand phase and a right-hand phase are simultaneously and independently regulated and controlled, broadband phase shift response is realized by using a processing mode of miniaturization of units such as a meander line structure, and the antenna ensures the final broadband characteristic of the dual-circularly-polarized reflective array antenna, has the advantages of replaceable functional layers, easy integration, low cost and the like, and has important application prospects in the fields of satellite communication and the like.
Owner:SOUTHEAST UNIV +1
A preparation method of an ordered ferroelectric topological domain structure array
ActiveCN110473873BRealize independent controlSolid-state devicesNanotechnologySingle crystalPulsed laser deposition
The invention relates to a preparation method of an ordered ferroelectric topological domain structure array, which comprises the following steps: S1: Depositing a layer of SRO conductive layer on the STO single crystal substrate in the (001) direction by using pulsed laser deposition method as the bottom electrode ; S2: Select a PZT target with Zr:Ti=7:3, and deposit a layer of rhombohedral PZT film on the SRO conductive layer by pulsed laser deposition; S3: transfer a single layer of PS beads to the surface of the PZT film as a mask, It is then etched with oxygen plasma, and then placed in an ion beam etching machine for etching. Finally, the remaining single-layer PS bead mask is removed to obtain an ordered diamond-phase PZT nano-dot array, which is a central topology. domain structure. The ordered ferroelectric topological domain structure array prepared by the invention reaches the nanometer level, and is a high-density ordered nano-dot array structure. The ferroelectric topological domain structures are independent of each other, can be tuned by an external electric field, and have good thermal stability.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Low-cost and high-efficiency pollutant and CO2 synergistic absorption-desorption decoupling method
ActiveCN114712989AStable controlGuaranteed Absorption EfficiencyGas treatmentDispersed particle separationPollutantConstrained optimization problem
The invention relates to a low-cost and high-efficiency pollutant and CO2 synergistic absorption-desorption decoupling method, which establishes a pollutant and CO2 synergistic absorption-desorption decoupling control optimization model under different working conditions, and takes low-cost and high-efficiency obtaining of high-purity liquid pollutants and CO2 as an optimization target. An adaptive penalty function is constructed to convert solution of a constrained optimization problem into an unconstrained optimization problem, and real-time, accurate and stable control of parameters is realized; and by means of flue gas pre-washing cooling, multi-stage intermediate cooling, tower top demisting and the like, efficient trapping of pollutants and CO2 is realized. According to the invention, the absorption process and the desorption process are decoupled, and coordinated regulation and control of each stage of temperature-pH-liquid-gas ratio and rich liquid flow-desorption temperature are carried out, so that efficient and low-energy-consumption coordinated capture-regeneration-concentration of pollutants and CO2 is realized, and the high cost of separated operation of an existing flue gas purification system and a carbon capture system is reduced.
Owner:ZHEJIANG UNIV +1
A method for independently adjusting the spin-orbit coupling parameters of semiconductor quantum wells
InactiveCN111208402BHigh feasibilityRealize independent controlSemiconductor devicesIndividual semiconductor device testingSemiconductor quantum wellsParticle physics
Owner:JILIN UNIV
Method and corresponding device for generation and adjustment control of adjustment controller for tridimensional graphs
InactiveCN107610243AImprove user experienceImprove drawing effectImage data processingSize adjustmentFunction application
The invention discloses a method and a corresponding device for the generation and the adjustment control of an adjustment controller for tridimensional graphs. The method for the generation of the adjustment controller comprises the steps of upon monitoring the tridimensional graph drawing operation on a first editing layer of a graph element, controlling the second editing layer and the third editing layer of the control graph to enter the editing mode; according to drawing parameters required for the tridimensional graph drawing operation and a preset first generation parameter, generatinga size adjuster associated with a tridimensional graph on the second editing layer; according to a preset second generation parameter, generating a rotation controller associated with a tridimensionalgraph on the third editing layer. Based on the method, an adjustment controller only suitable for tridimensional graphs is created for the tridimensional graph drawing operation on an electronic whiteboard in an independent three-dimensional scene. When a tridimensional graph needs to be rotated or the size of the tridimensional graph needs to be adjusted, the rotation or the size adjustment of the tridimensional graph can be realized simply and rapidly through the associated adjustment controller. The user experience of the drawing function application in the electronic whiteboard is effectively improved.
Owner:GUANGZHOU SHIRUI ELECTRONICS +1
Hydro-cracking method of catalytic diesel oil
PendingCN111088073AHigh aromatic contentImprove hydrogenation activityTreatment with hydrotreatment processesNaphthaCracking reaction
The invention discloses a hydro-cracking method of catalytic diesel oil. The hydro-cracking method comprises the following steps: (1) a catalytic diesel oil raw material enters a hydro-refining reactor to contact with a hydro-refining catalyst for reaction, and the reaction effluent enters a high-pressure separator; (2) high-pressure separation gas obtained at the upper part of the high-pressure separator is subjected to a desulfurization treatment and then is circulated back to the hydro-refining reactor or directly enters a hydro-cracking reactor without any desulfurization treatment, and aliquid phase obtained at the middle lower part of the high-pressure separator enters a low-pressure separator; (3) a liquid phase obtained at the middle lower part of the low-pressure separator entersa fractionating tower and is fractionated to obtain dry gas, liquefied gas, light naphtha, heavy naphtha and tail oil; and (4) the tail oil enters a hydro-cracking reactor and is in contact with a hydro-cracking catalyst for a hydro-cracking reaction, and the reaction effluent enters the high-pressure separator. The H2S and NH3 concentrations of the hydro-refining reactor and the hydro-cracking reactor are controlled in sections, so that the purposes of shortening the stabilization time at the initial stage of startup and prolonging the running period of the device are achieved.
Owner:CHINA PETROLEUM & CHEM CORP +1
A kind of rolling saggar rolling progressive mechanism and rolling progressive method
ActiveCN112524945BShorten the lengthMeet the needs of sintering small testFurnace typesClassical mechanicsStructural engineering
A rolling saggar rolling progressive mechanism and rolling progressive method belong to the technical field of high temperature sintering kilns. A rolling sagg rolling progressive mechanism, which comprises a plurality of lifting wheels which are cylinders, the axes of the lifting wheels and the axis of the sagger are parallel to each other in three-dimensional space, and the distance between the axes of two adjacent lifting wheels is smaller than that outside the saggar. The diameter of the profile cross-section, each lifting wheel is connected to an independent lifting mechanism so that each lifting wheel can be lifted and lowered independently in the vertical direction. The tumbling advancement method of the tumbling advancement mechanism of the rolling saggar utilizes the lifting and lowering coordination of the lifting wheels to realize the advancement of the saggar in the advancing direction. The above-mentioned rolling saggar tumbling advancement mechanism and tumbling advancement method can shorten the overall length of the kiln, the rotation speed of the sagger can be adjusted, the overall mechanical structure is reliable, and the sintering requirements of related materials can be met.
Owner:JIANGSU JITRI MOLECULAR ENG INST CO LTD
Inert gas suction well mouth combustible gas safety operation method
InactiveCN110529076APrevent overflowSimple structureJet pumpsMachines/enginesNitrogenCombustible gas
The invention provides an inert gas suction well mouth combustible gas safety operation method. An inert gas suction well mouth combustible gas safety operation system is adopted to achieve a suctioneffect on well mouth combustible gas; the safety operation system comprises a sand discharge pipeline, a first suction short connector, an ignition device, a gas injecting unit and a first gas injecting pipe collector; a well mouth is connected with the sand discharge pipeline by the first suction short connector; the gas injecting unit generates inert gas; the inert gas is provided to the first suction short connector by the first gas injecting pipe collector to form a negative-pressure suction effect in the first suction short connector; and the combustible gas discharged from the sand discharge pipeline can be ignited by the ignition device. A nitrogen injecting suction method with double-channel suction and gas injection adjustment can be realized; the safety risk of natural gas overflowing from the well mouth in such well opening operations as tripping and rubber core replacement under the condition of discharging less natural gas from stratums is eliminated; the scene operationsafety is prominently improved; the acceleration advantage of a gas drilling well is facilitated; and the safety operation system is suitable for reverse circulation drilling.
Owner:CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD +1
A method for preparing thin films by dual-frequency magnetron sputtering based on radio frequency and very high frequency
ActiveCN103866258BAchieve decouplingSolve the shortcomings of difficult independent regulationVacuum evaporation coatingSputtering coatingHigh frequency powerEngineering
Owner:SUZHOU UNIV
Method for realizing source control beam regulation and control of electromagnetic wave by using polarization confluence metasurface
The invention discloses a method for realizing source control beam regulation and control of electromagnetic waves by using a polarization confluence metasurface. According to the method, the metasurface with a row zero Jones matrix is designed, energy synthesis of two orthogonal beam electromagnetic waves is achieved, and then beam pointing regulation and control of emergent waves of the metasurface under the condition of different feed sources are achieved. Compared with a traditional polarization conversion device design, the metasurface achieved through the method has the anisotropic polarization conversion characteristic, in other words, energy of one incident polarization is subjected to polarization conversion, and orthogonal incident polarization of the metasurface is emitted in the original polarization direction; compared with a traditional metasurface scanning mechanism which carries out beam regulation and control by regulating and controlling each unit, the method can realize the control of the radiation beam by using the feed source, thereby greatly reducing the attenuation of the metasurface, and reducing the cost and design difficulty of the metasurface. The anisotropic chiral metasurface unit structure adopted by the invention can realize the design of a row zero Jones matrix, and the symmetrical operation can realize the regulation and control of a polarization conversion component 1Bt phase, thereby realizing the source control beam scanning of electromagnetic waves.
Owner:CHONGQING UNIV
Wellhead safe operation method based on axial oblique jet suction and drainage
ActiveCN110500064BPrevent overflowRealize independent controlFluid removalSealing/packingWell drillingCombustible gas
The present invention provides a wellhead safety operation method based on axial oblique jet suction and drainage, which adopts the wellhead safety operation system based on axial oblique jet suction and drainage to realize the suction of combustible gas at the wellhead. The system includes a sand discharge pipeline, an axial oblique injection suction drainage aid mechanism connecting the wellhead with the sand discharge pipeline, an ignition device, a gas injection unit and a first gas injection manifold; Provided to the oblique jet suction and drainage mechanism to form negative pressure suction; the ignition device is set at the outlet end of the sand discharge pipeline and ignites the combustible gas discharged from the sand discharge pipeline. The invention can realize dual-channel suction and a nitrogen injection suction method with adjustable gas injection, and eliminates the safety risk of natural gas overflowing the wellhead during open well operations such as "tripping and replacing rubber core" under the condition that a small amount of natural gas is produced from the formation , Significantly improve the safety of on-site operations, which is conducive to the advantages of gas drilling speed increase, and is suitable for the field of reverse circulation drilling.
Owner:CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD +1
Plant growth cabinet and control method thereof
InactiveCN111324159ARealize independent controlImprove versatilitySimultaneous control of multiple variablesAgricultural engineeringAgricultural science
The invention provides a plant growth cabinet and a control method thereof. The plant growth cabinet comprises a plurality of areas used for cultivating plants and a control system used for independently adjusting cultivation parameters of each area. The control system comprises a controller and modules which are in communication connection with the controller and used for independently controlling each cultivation parameter; and the controller controls a working state of the corresponding module according to the preset cultivation parameters of each area. According to the plant growth cabinetprovided by the invention, the multiple mutually independent cultivation areas are arranged in a cabinet body, the control system is arranged on the cabinet body, and each cultivation parameter of each area is independently controlled through the controller and the multiple modules. When the cabinet is used, a user can plant different types of plants in each area, the corresponding cultivation parameters of the different types of plants are accurately adjusted, simultaneous cultivation and independent regulation and control of various plants in the same cabinet body are realized, and universality of use in the same time period is improved.
Owner:GREE ELECTRIC APPLIANCES INC
Metasurface Array Structure and Its Application in Image Display Multiplexing with Adjustable Gray Scale
InactiveCN111025430BAdjust the intensityRealize independent controlPolarising elementsEngineeringOptical polarization
The invention discloses a metasurface array structure and its application in image display multiplexing with adjustable gray levels. The metasurface array structure includes a substrate and a nanobrick array; at the working wavelength, when linearly polarized light is incident on the metasurface array, the reflectance along the long axis of the nanobricks is the highest, and the transmittance along the short axis of the nanobricks is the highest . This kind of metasurface array structure can realize binary image display multiplexing with arbitrarily adjustable gray scale. Each nanobrick in the metasurface array can correspond to a pixel in a displayed image. In the case that two binary images for display multiplexing are selected, the nano-bricks in the metasurface array have only four values. The two binary images can be displayed separately under different lighting conditions (polarization direction of linearly polarized light and direction of transmission axis of analyzer). At the same time, the gray value in each image can be changed by adjusting the polarization direction of the incident ray, the steering angle of the nano-bricks and the direction of the transmission axis of the analyzer.
Owner:WUHAN UNIV
air-sea amphibious propulsion
ActiveCN108839800BImprove propulsion performanceSwitch freelyPropellersPropulsion power plantsMechanical engineeringDucted propeller
The invention provides a sea-air amphibious propeller. It includes a ducted propeller stator, an air paddle, an air paddle rotor, a ducted paddle, and a ducted paddle rotor. The air paddle rotor and the ducted paddle rotor each fix a set of magnets, and the air paddle rotor and the ducted paddle rotor rotate coaxially. Nested on the same ducted propeller stator, the ducted propeller stator is embedded with two coils corresponding to the air paddle rotor and the ducted paddle rotor respectively. The air paddle is used for air propulsion, and the water paddle is used for underwater propulsion, and the two can work independently. When propelling underwater, the air paddle folds back and rotates at a lower speed to eliminate the resistance of the air paddle. The shaftless ducted paddle works to generate thrust; the air paddle unfolds in the air and generates thrust through rotation, and the ducted paddle Auxiliary work. The shaftless ducted propeller has good propulsion performance underwater, and the air propeller is suitable for working in the air. By combining the air propeller and the shaftless ducted propeller, efficient propulsion and free switching between underwater and air can be realized.
Owner:HARBIN ENG UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com