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41 results about "Field cooling" patented technology
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Magnetic coupler for holding a magnetic pumping or mixing element in a vessel
InactiveUS20050201201A1Minimize thermal transferShorten the separation distancePump componentsTransportation and packagingLevitationHybrid system
A kit for assisting in the set-up of a fluid pumping or mixing system including a superconducting element capable of reaching a transition temperature during a field cooling process is disclosed. In one embodiment, the kit comprises at least one pumping or mixing element including a levitation magnet and at least one charging magnet substantially corresponding in size, shape, and magnetic field distribution to the levitation magnet. The presence of the charging magnet adjacent the superconducting element during the field cooling process enables stable levitation of the pumping or mixing element, including when in a fluid-filled vessel positioned adjacent the superconducting element.
Owner:PALL TECH UK
Waste gas purification system in rubber processing field
InactiveCN103230729ALow costReduce difficultyCombination devicesActivated carbon filtrationCatalytic oxidation
The invention discloses a waste gas purification system in the rubber processing field. The waste gas purification system comprises a plurality of wind collecting covers, an assistant recovery tower, a desulfurization purification tower, a draught fan, an activated carbon filtration tower or ultraviolet catalytic oxidation waste gas purification apparatus, an oxyhydrogen flame combustor and a treating liquid circulating device, wherein the wind collecting covers are respectively arranged above each working station; the assistant recovery tower is communicated with the wind collecting covers through gas inlet pipes; the desulfurization purification tower is communicated with a gas outlet of the assistant recovery tower; the draught fan is communicated with a gas outlet of the desulfurization purification tower and is used for forcing air into the wind collecting covers and finally discharging to the outside; the activated carbon filtration tower or ultraviolet catalytic oxidation waste gas purification apparatus is connected in series between the desulfurization purification tower and the draught fan; the oxyhydrogen flame combustor is arranged at a wind outlet of the draught fan; and the treating liquid circulating device is used for supplying treating liquid to the desulfurization purification tower. According to the invention, the waste gas purification system in the rubber processing field cools and depressurizes high-temperature waste gas to gradually separate particles and liquid drops included in the waste gas from the waste gas and collect in the collecting covers; and the assistant recovery rate can be up to 70%.
Owner:TIANJIN DONGZHEN RUBBER
Energy storage device of vacuum super-conducting magnetic suspension integrated flywheel
InactiveCN102594008AImprove energy storage efficiencyReduce lossesMechanical energy handlingMagnetic holding devicesBrushless motorsFlywheel energy storage
The invention discloses an energy storage device of a vacuum super-conducting magnetic suspension integrated flywheel and relates to the field of energy storage of a flywheel. The device comprises a base, a bracket, a stepper motor, a vacuum cover, a vacuum cavity, a lead rail, a cooling device, a direct current brushless motor stator, an integrated flywheel rotor and a high-temperature super-conducting block; wherein the stepper motor, the lead rail and the cooling device are fixed on the base; the stepper motor and the lead rail are connected with the vacuum cavity and can control the field cooling height of a high-temperature super-conducting magnetic suspension bearing and the gap of a direct current brushless motor; the direct current brushless motor stator is fixed at the inner part of the vacuum cavity; the integrated flywheel rotor is arranged in a coaxial groove inside the vacuum cavity, and the high-temperature super-conducting block is arranged inside the cooling device and can be refrigerated by pouring liquid nitrogen into the cooling device. The energy storage device of the vacuum super-conducting magnetic suspension integrated flywheel has the advantages of being simple in structure and easy in operation; the rotation loss of the flywheel can be reduced by adopting the super-conducting magnetic suspension bearing; the energy consumption is reduced; the brushless motor is utilized as a drive, and the flywheel rotor adopts a shaftless design so as to reduce the motor loss.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Method for realizing magnetic suspension state through adoption of closed loop constant current high-temperature superconducting coil
ActiveCN106059394AReduce dependenceReduce construction costsPermanent magnetsSuperconducting magnets/coilsClosed loopEngineering
The present invention provides a method for realizing magnetic suspension state through adoption of a closed loop constant current high-temperature superconducting coil which takes places of the novel superconductive suspension mode of high-temperature superconductor materials. The high-temperature superconductor materials are wound on a coil framework through a certain winding method (a drying winding method and a wet winding method), a closed loop structure is formed by employing the superconduction welding technology; and the closed loop high-temperature superconducting coil (1) is disposed in the low-temperature container and is located at the upper portion of a high-intensity magnetic field source, and field cooling enters the superconducting state. The superconducting coil has zero resistance property in the superconducting state, the induced current forms a constant current state in the closed loop high-temperature superconducting coil and maintains the interaction between an induced magnetic field and the high-intensity magnetic field source so as to realize passive and self-stable suspension similar to the high-temperature superconductor materials suspension.
Owner:SOUTHWEST JIAOTONG UNIV
Method for setting total water amount of thermal process of steel slag strip ladle
InactiveCN102071270AEasy to handleReduce consumptionContainer/cavity capacity measurementVisual observationSlag
A method for setting the total water amount of the thermal process of a steel slag strip ladle aims to reduce iron oxide slag after the thermal process and the cooling process and also reduce the amount of cooling water for 1 ton of slag. The inside of the slag ladle is provided with a slag pot surveying rod; the spraying pipe of a field spraying system is provided with a watermeter; the actual volume of the slag ladle and the actual flow of the nozzle used in actual working condition are measured according to the water amount fo the slag ladle; a trial rod or the comparison visual observation method is utilized to measure the value L which is the distance between the upper surface of steel slag in the slag ladle and the upper edge of the tank, the sampling tables of the value L and the volume of the slag ladle are given; the set total water amount parameter is calculated; and the total water amount is adjusted continuously according to the actual field cooling effect to form a chart that the smoldering time of steel slag changes with the value L and provide a reference for setting technological parameters.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD
Electromagnetic action device improving high-field large-current electromagnetic launch force and being used for body to be launched
InactiveCN102075064ASolve the technical problems of material magnetizationIncrease field strengthMagnetic circuit rotating partsLaunching/towing gearElectromagnetic launchHigh-temperature superconductivity
The invention discloses an electromagnetic action device improving high-field large-current electromagnetic launch force and being used for a body to be launched, namely a high temperature superconducting launch rotor mechanism. The electromagnetic action device comprises the following materials and components: a high temperature bulk superconductor magnet, high temperature superconducting coils,a low temperature cabinet, refrigerating fluid and large-current electrodes. The electromagnetic action device is characterized in that via the high temperature superconducting coil magnets, the hightemperature bulk superconductor can be magnetized by adopting a stable impressed field cooling or zero pulsed field cooling magnetizing scheme; and the prepared rotor and an electromagnetic rotor actto generate greater electromagnetic thrust to implement launch. Through the electromagnetic action device, the technical difficulty of magnetizing the high temperature bulk superconductor magnet usedin the above scheme is effectively overcome and the magnetizing effect is obviously improved. The high temperature bulk superconductor and the high temperature superconducting coils form a whole in the design, so on the one hand, the intensity of the trapped field of the high temperature bulk superconductor is structurally improved, and on the other hand, the intensity of the magnetic field is improved from the current density of the high temperature superconducting material, thus greatly improving the effective field intensity.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
Device for online measuring wall thickness of hot-rolled metal pipe by using gamma rays
InactiveCN102059257ARelaxed conditions of useRealize anti-jamming transmissionMeasuring devicesUsing wave/particle radiation meansMeasurement deviceControl signal
The invention discloses a device for online measuring the wall thickness of a hot-rolled metal pipe by using gamma rays, which comprises a horizontally movable field measurement C-shaped box, a gamma ray detector, a charge coupled device (CCD) camera, a radioactive source, a field control box with a programmable logic controller (PLC) and a measurement signal conversion unit, an industrial personal computer main cabinet, an exchanger, a database server, a terminal set, a field cooling circulation water channel, a gas circuit and an infrared temperature measurer. The device realizes continuous automatic measurement on a hot-rolled metal pipe production line, and simultaneously can output control signals for realizing the automatic closed-loop control of a rolling mill. The CCD camera takes part in eccentricity correction calculation, so using restrictions to the measurement device are relaxed, and the measurement accuracy is improved and is lower than + / -0.2 percent. Simultaneously, measurement data is digitally transmitted, so the device realizes the long-distance and anti-interference transmission of the measurement signals and effectively solves the problems of long distance between a measurement field and an operating room and intensive field interference.
Owner:天津市核人仪器设备有限公司
Fuel cell device
ActiveCN105161739AImprove performanceImprove overall lifespanFuel cell auxillariesPower flowFuel cells
The invention provides a fuel cell device, which comprises a negative collector plate, a negative combined flow field cooling plate, a membrane electrode assembly, a positive combined flow field cooling plate and a positive conducting panel, which are sequentially fitted and connected with one another, wherein the membrane electrode assembly comprises an exchange membrane, a plurality of negative catalyst layers, a plurality of negative gas diffusion layers, a plurality of positive catalyst layers and a plurality of positive gas diffusion layers; the negative collector plate comprises an insulting base body and a plurality of conductive layers; each conductive layer is connected with a collector terminal through a lead; each lead between each conductive layer and each collector terminal is connected with a current sensor in series; the negative combined flow field cooling plate and the positive combined flow field cooling plate are composed of a plurality of sequentially arranged conductive region modules and insulating region modules; and the insulating region modules are arranged between the adjacent conductive region modules. According to the fuel cell device provided by the invention, practical reaction performance distribution and reaction condition distribution of various local regions in the cell can be monitored in real time.
Owner:DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
Portable cooling unit for field-level cooling of product
A portable cooling unit is disclosed for vacuum cooling products such as product at a worksite such as a field where the produce is harvested. When cooling product, the portable cooling unit includes a retort, at least one shuttle coupled to the retort and a condensation assembly. The condensation assembly includes primary and secondary refrigerant load subassemblies. Each of these components may be disassembled from each other into modular units which may be easily transported to and from the worksite.
Owner:AZZOPARDI TECH GRP
Cooling device in automobile fastener machining process
PendingCN107877256AAchieve coolingCool evenlyMaintainance and safety accessoriesCooling effectField cooling
The invention relates to the technical field of fastener cooling devices and discloses a cooling device in the automobile fastener machining process. The cooling device in the automobile fastener machining process comprises a machine body and a first cooling box; a motor is fixedly connected with one side of the machine body; a first air blower is fixedly connected under the motor; an air outlet of the first air blower is fixedly connected with an air entering pipeline; an output shaft of the motor is fixedly connected with a rotating rod; and an installing pipe is fixedly connected to one side of the rotating rod. According to the cooling device in the automobile fastener machining process, by arranging a refrigerator, a main cooling pipe, and an auxiliary cooling pipe, after water in a water tank is atomized, the extracting performance on the water is enhanced, the atomized water performs temperature lowering on an automobile fastener, and the work efficiency of the cooling device inthe automobile fastener machining process is improved; and by arranging a second air blower and a condenser, the second air blower is adopted to cool gas generated in the machine body, heat is blownaway through the condenser, cooling of an automobile fastener is achieved, and the cooling effect is good.
Owner:苏州东吾丰机械科技有限公司
Synchronous rising and falling system of high-temperature superconducting maglev train and field cooling method
ActiveCN112848913AReduce mistakesReduce the difficulty of manipulationSliding/levitation railway systemsElectric propulsionHigh temperature superconductingEngineering
The invention discloses a synchronous rising and landing system of a high-temperature superconducting maglev train and a cooling method. The synchronous rising and landing system comprises a synchronous rising and landing unit and an auxiliary supporting mechanism. In the field cooling process of the high-temperature superconducting maglev train, synchronous field cooling of a plurality of suspension Dewares can be achieved, the positioning precision between the suspension Dewares and a permanent magnet track is effectively improved, the defects of unbalanced bearing performance distribution, suspension force attenuation, transverse drifting, side rolling and the like caused by vertical and transverse positioning errors and asynchronous field cooling are overcome, the suspension guiding performance, stability, reliability and safety of the distributed and large-bearing-capacity high-temperature superconducting maglev train are improved, and the system and method have high application value in the fields of high-speed electromagnetic emission and maglev transportation.
Owner:FUJIAN NORMAL UNIV
Method for improving stability of high temperature superconducting magnetic suspension system
InactiveCN100577465C"Magnetic Enhancement"Magnetism" enhancedMagnetic measurementsElectric propulsionSupporting systemStable state
Owner:SOUTHWEST JIAOTONG UNIV
Combined two-stage cooling transverse flow closed cooling tower
PendingCN111121487AAchieve regulationIncrease profitDispersed particle filtrationTrickle coolersWater savingThermodynamics
The invention relates to the technical field cooling towers, in particular to a combined two-stage cooling transverse flow closed cooling tower which comprises a base, wherein a tower body is welded to the outer wall of the top of the base; a high temperature cooling tower and a low temperature cooling tower are connected with one side of the inner wall of the top of the base through bolts; two water absorption pipes are connected with the outer wall of one side of the base in an inserting manner and are connected with valves through flanges; the valves are connected with spraying pumps through water pipes; the water outlet ends of the spraying pumps are connected with water conveying pipes through the flanges; top net pipes are welded with the top ends of the water conveying pipes; and spraying heads is in threaded connection with the bottom outer walls of the top net pipes. The combined two-stage cooling transverse flow closed cooling tower has the following benefits: through arranging the high temperature cooling tower, the low temperature cooling tower and the spraying pumps, the two cooling towers and the two spraying pumps are operated independently, and the cooling temperature is adjusted; and when the two cooling towers are opened, cooling gas discharged by the low temperature cooling tower is re-utilized, so that the air utilization ratio is increased, and energy and water are saved to the maximum while realizing the cooling requirement.
Owner:广东览讯科技开发有限公司
Induction cooker
InactiveCN104266234AReduce restrictionsImprove heating efficiencyDomestic stoves or rangesLighting and heating apparatusInduction motorElectrical polarity
The invention relates to an induction cooker, belongs to the technical field of ovens, and solves the technical problems that the electromagnetic radiation exists and the heating efficiency is low in an existing induction cooker. The induction cooker comprises a cooker seat and a turnplate, wherein the turnplate is a flat non-magnetic insulating plate body and is rotatably mounted on the cooker seat; an even number of permanent magnets are fixed on the turnplate; the magnetization direction of each permanent magnet is parallel to the rotation axis of the turnplate; the permanent magnets are arranged in an axial symmetry manner around the rotation axis of the turnplate in a polarity alternating manner; and the cooker seat is provided with a power machine for driving the turnplate to rotate and fixedly provided with a pot bracket for holding heated pots. The induction cooker is free from the electromagnetic radiation, low in energy consumption, high in heating efficiency, and little in limit on the heated pots, and can continuously regulate the temperature. The induction cooker can be used as kitchen cooking equipment in households, mess halls, restaurants and hotels, or can be used for field cooling.
Owner:魏乐汉 +1
Apparatus and method for tissue ablation with near-field cooling
InactiveUS9108037B2Sufficient energyUltrasound therapyChiropractic devicesThermal energyAcoustic energy
Owner:ST JUDE MEDICAL ATRIAL FIBRILLATION DIV
Integrated high temperature resistant aerosol spray pipe
InactiveCN102294310ASimplify the external structureEasy to useLiquid spraying apparatusAerosol spraySpray nozzle
The invention relates to an integrated high-temperature-resistant aerosol spray pipe, which belongs to the technical field of cooling and dust removal, and includes an air pipe, a spray pipe water pipe, an air-water mixing chamber and an aerosol nozzle connected to the mixing chamber, and is characterized in that: the air pipe and the spray pipe The water pipes are arranged parallelly in the water pipe of the spray pipe, the mixing chamber is arranged in the water pipe of the spray pipe, and both the air pipe and the water pipe of the spray pipe are connected with the mixing chamber. The air pipe of the present invention is installed inside the water pipe of the spray pipe, the external structure is simple, and the installation and use are convenient; the outer wall of the spray pipe is self-cooled by the cooling water in the pipe, and can be used under high temperature and closed conditions; the air-water mixing chamber of the aerosol nozzle is built-in For the spray pipe, the structure of the external nozzle is simple; the air mist cooling method is adopted, the cooling is uniform, and the cooling intensity can be adjusted in a large range.
Owner:武钢集团有限公司
Co/CoO nano composite film with zero-field cooling exchange bias effect as well as preparation method and application of Co/CoO nano composite film
InactiveCN110993785AHigh coercive forceThe exchange bias field is largeMagnetic-field-controlled resistorsGalvano-magnetic material selectionSputteringComposite film
The invention belongs to the technical field of magnetic materials, and provides a Co / CoO nano composite film with a zero-field cooling exchange bias effect and a preparation method and application thereof. The invention discloses a Co / CoO nano composite film with a zero-field cooling exchange bias effect. The Co / CoO nano-particle composite film comprises a substrate, a Co / CoO nano-particle composite film body and a protective layer which are stacked from bottom to top, the particle size of the Co / CoO nano-particle composite film body ranges from 3 nm to 8 nm, and the thickness of the Co / CoO nano-particle composite film body ranges from 3.6 nm to 270 nm. The Co / CoO nano composite film with the zero-field cooling exchange bias effect is prepared by adopting a direct-current magnetron sputtering technology, and the film with a Co / CoO composite nanoparticle structure is obtained by controlling oxygen partial pressure and the thickness of the film.
Owner:扬州旭磁智能科技有限公司
Crystal pulling system
InactiveCN110067018AHigh speedImprove efficiencyPolycrystalline material growthBy pulling from meltManufacturing technologyCrucible
The invention provides a crystal pulling system. The system comprises a thermal field cooling device, and the thermal field cooling device comprises a cylindrical heat absorbing device and a cooling liquid loop which is arranged inside the cylindrical heat absorbing device; the length direction of the cylindrical heat absorbing device is consistent with the crystal pulling direction, the cooling liquid loop is arranged in the length direction, and the thermal field cooling device is used for cooling a thermal field which is generated by heating a silicon melt in a crucible. According to the crystal pulling system, the thermal field in a crystal pulling chamber can be cooled through the thermal field cooling device after crystal pulling is finished; the cylindrical heat absorbing device absorbs heat of the thermal field, the cooling liquid loop in the cylindrical heat absorbing device takes away the heat, thus cooling of the thermal field is accelerated, the efficiency of cooling the thermal field is improved, the efficiency of the crystal pulling manufacturing technology is further improved, and the capacity is increased.
Owner:ZING SEMICON CORP
Active and passive dual-purpose liquid cooling radiator and manufacturing method thereof
InactiveCN111970908ASolve the cooling problemAchieving Field CoolingCooling/ventilation/heating modificationsIn vehicleEngineering
An active and passive dual-purpose liquid cooling radiator is used for heat dissipation of a chip and comprises a liquid cooling base and a heat pipe heat dissipation piece. The liquid cooling base iscomposed of a substrate and a cover plate, and a cooling water tank is arranged on the substrate; the heat pipe heat dissipation piece comprises a radiating block and a plurality of heat pipes; a plurality of heat dissipation air ducts are arranged on the side surface of the radiating block; the bottom surface of the radiating block is connected with the cover plate; the heat pipe is in a squarering shape, one long edge of the heat pipe transversely penetrates through the heat dissipation air ducts of the radiating block, and the other long edge of the heat pipe is located in the round hole.The active and passive dual-purpose liquid cooling radiator can be connected with a vehicle-mounted liquid cooling source, and efficient vehicle-mounted cooling is achieved; and field cooling can berealized by virtue of a self heat pipe cooling structure. According to the invention, the heat dissipation problem of the CPU chip of the communication equipment in a vehicle-mounted or field workingenvironment is solved. According to the manufacturing method of the radiator, through integral manufacturing, the thermal resistance of the radiator is the lowest, the heat dissipation performance isthe best, and normal use of communication equipment under vehicle-mounted or field conditions is ensured.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD
Vehicular micro-vacuum fruit-vegetable picking field cooling device and pre-cooling method thereof
PendingCN106212648AUniform temperature differenceSmall temperature fluctuationsFruit and vegetables preservationEngineeringCheck valve
The invention discloses a vehicular micro-vacuum fruit-vegetable picking field cooling device and a pre-cooling method thereof. The device comprises a micro-vacuum container and further comprises a liquid nitrogen steel cylinder, a vaporization pressure reducing device, a vacuum generator, an air storage tank and an evacuation pipe in sequential communication through an air pipe. An air suction pipe and an air return pipe are arranged on two opposite inner sides of the micro-vacuum container respectively, and the vacuum generator and the air storage tank are communicated with the air suction pipe and the air return pipe through the air pipe with a check valve and a first electromagnetic valve respectively. A second electromagnetic valve is mounted on the air pipe between the air storage tank and the evacuation pipe. The vehicular micro-vacuum fruit-vegetable picking field cooling device has advantages that short pre-cooling time and low temperature fluctuation and uniform internal temperature difference of the micro-vacuum container are realized, and instant cooling after picking can be guaranteed; safety and reliability are achieved due to adoption of nitrogen as a gas source for the cooling device, and by sensible heat and latent heat of vaporization of liquid nitrogen, unpowered power source cooling is realized, the problem of lack of electricity and power in a picking field is solved, flexibility in use of a pre-cooling device is improved, and excellent comprehensive performances and promising market prospect are realized.
Owner:SUZHOU BTBS ENERGY TECH
Device and method for measuring magnetic characteristic curve of soft magnetic material
PendingCN114779136AHigh measurement accuracyGood repeatabilityHysteresis curve measurementsWater resource assessmentHysteresisMagnetization curve
The invention discloses a device and a method for measuring a magnetic characteristic curve of a soft magnetic material. The method comprises the following steps: firstly, saturating and magnetizing a soft magnetic sample by using a pulsed magnetic field at a specific temperature, then changing the distance between the soft magnetic sample and a rubidium bubble, and rapidly measuring magnetic fields at the rubidium bubble at different positions of the soft magnetic sample by using a pumping-detection rubidium atom magnetometer, so as to obtain the saturation residual magnetic moment of the soft magnetic sample; dividing the saturation residual magnetic moment by a magnetic field generated by the soft magnetic sample at the initial position at the rubidium bubble to obtain a calibration coefficient of the soft magnetic sample at the initial position under a specific temperature condition; and finally, converting magnetic field values generated by the soft magnetic sample at the rubidium bubble in various measurement processes into magnetic moment values of the soft magnetic sample by utilizing the calibration coefficient. Measurement of magnetic characteristic curves such as a soft magnetic sample isothermal residual magnetism loop, a low-field part isothermal hysteresis loop, a low-field part isothermal initial magnetization curve and a zero-field cooling magnetic moment-temperature curve is realized. The method is high in measurement precision and good in repeatability.
Owner:LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
A high-temperature superconducting maglev train synchronous landing system and field cooling method
ActiveCN112848913BReduce mistakesReduce the difficulty of manipulationSliding/levitation railway systemsElectric propulsionHigh temperature superconductingField cooling
The invention discloses a synchronous landing system and a cooling method for a high-temperature superconducting maglev train. The synchronous landing system comprises a synchronous landing unit and an auxiliary support mechanism. In the field cooling process of high-temperature superconducting maglev trains, this application can realize synchronous field cooling of multiple suspended Dewars, effectively improve the positioning accuracy between the suspended Dewars and the permanent magnet track, and suppress vertical and lateral positioning errors and non-synchronization The unbalanced load-carrying performance distribution, suspension force attenuation, lateral drift and rollover caused by field cooling have improved the distribution, suspension guidance performance, stability, reliability and safety of high-temperature superconducting maglev trains with large loads. It has important application value in the fields of electromagnetic launch and maglev transportation.
Owner:FUJIAN NORMAL UNIV
Sub-mN-level superconductive plane suspension type vacuum attitude and orbit control test system
PendingCN114013695ALarge range of motionLow motion dampingCosmonautic condition simulationsEngineeringBinocular vision
The invention discloses a sub-mN superconductive plane suspension type vacuum attitude and orbit control test system, which specifically comprises a superconductive translation magnetic suspension system, a dual-mode motion measurement device and an ultralow-temperature refrigeration system, and realizes a large-area low-damping translation suspension method based on complete diamagnetism of a superconductor under zero-field cooling. A superconductive fence structure is introduced to inhibit the fringe effect of a superconductive plane, and more than 80% of an effective translation area is realized; in order to achieve a high-suspension air gap exceeding 10 mm, the superconductive temperature of the ultralow-temperature refrigerating system is required to be lower than 5 K; in order to realize sub-mN level translation resistance, the low-temperature uniformity of a superconducting plane is required to be superior to 0.5 K, the mounting planeness is required to be superior to 0.5 mm, and the magnetic field uniformity of a circular ring magnetic structure below a permanent magnetic levitation platform is controlled to be 1% or less; in order to measure the [mu]N-level micro force, a combined measurement mode of circumferential distribution of four precision nm-level displacement sensors is adopted; and in order to evaluate the large-range motion control capability of the micro-thruster, binocular vision is adopted to collect motion trails.
Owner:BEIHANG UNIV
A superconducting translational magnetic levitation system based on superconductor complete diamagnetism
ActiveCN112087162BGuaranteed SuspensionReduce lossMagnetic holding devicesFlux pinningMeasurement device
The invention belongs to the field of high-temperature superconducting magnetic levitation, and is a superconducting translational magnetic levitation system based on superconductor complete diamagnetism, mainly including a superconducting translational magnetic levitation structure, a calibration device and a measuring device. Specifically, it is divided into superconducting flat layer, permanent magnetic floating platform, coolant container, small ball, arc guide rail, image acquisition equipment, and bracket. The complete diamagnetism of the superconductor under zero-field cooling eliminates the pinning of the magnetic flux, so that the translation of the permanent magnetic levitation platform is not hindered; The levitation force also reduces the influence of the superconductor splicing gap on the translational damping, the structure is simple and the feasibility is high; the size of the permanent magnetic levitation table is much smaller than the superconducting plane size, which reduces the edge effect of the superconductor and ensures the stability of the levitation force. The invention solves the problems of complex structure, large mass, large frictional damping and the like in the existing semi-physical simulation method of the air flotation platform.
Owner:BEIHANG UNIV
A superconducting motor using field-cooled superconducting permanent magnets
InactiveCN103855909BImprove performanceReduce energy consumptionDynamo-electric machinesTemperature controlSuperconducting electric machine
The invention provides a superconducting motor adopting field cooling superconductive permanent magnets. The superconducting motor comprises a vacuum cover, a temperature control module, a heat conduction core, the superconductive permanent magnets, an armature and a magnetizing module. The heat conduction core is connected with the temperature control module, heat can be transferred between the heat conduction core and the temperature control module, the temperature control module is used for transferring the heat through the heat conduction core and then controlling the temperature of the superconductive permanent magnets; the superconductive permanent magnets at even number are evenly fixed to the heat conduction core in the circumferential direction; the armature and the heat conduction core are coaxially arranged and can rotate relatively in the axial direction; the heat conduction core and the armature are covered with the vacuum cover; the magnetizing module is arranged outside the vacuum cover. According to the superconducting motor adopting the field cooling superconductive permanent magnets, a field cooling magnetizing method is adopted, so powerful magnetic fields can be captured by the superconductive permanent magnets; in addition, the magnetic fields can be maintained without electric energy consumption. The superconductive permanent magnets can serve as stators or rotors of the motor. Compared with the prior art, the superconducting motor adopting the field cooling superconductive permanent magnets has the advantages that the performance is greatly improved and power consumption is reduced.
Owner:GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
Method for setting total water amount of thermal process of steel slag strip ladle
InactiveCN102071270BEasy to handleReduce consumptionContainer/cavity capacity measurementVisual observationSlag
A method for setting the total water amount of the thermal process of a steel slag strip ladle aims to reduce iron oxide slag after the thermal process and the cooling process and also reduce the amount of cooling water for 1 ton of slag. The inside of the slag ladle is provided with a slag pot surveying rod; the spraying pipe of a field spraying system is provided with a watermeter; the actual volume of the slag ladle and the actual flow of the nozzle used in actual working condition are measured according to the water amount fo the slag ladle; a trial rod or the comparison visual observation method is utilized to measure the value L which is the distance between the upper surface of steel slag in the slag ladle and the upper edge of the tank, the sampling tables of the value L and the volume of the slag ladle are given; the set total water amount parameter is calculated; and the total water amount is adjusted continuously according to the actual field cooling effect to form a chart that the smoldering time of steel slag changes with the value L and provide a reference for setting technological parameters.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD
8-shaped magnetic flux density amplifying device of superconducting closed loop
PendingCN114460509ANo lossReduce cooling costsMagnetic field measurement using superconductive devicesInterference resistanceField cooling
The invention discloses an 8-shaped magnetic flux density amplifying device of a superconducting closed loop. The device is formed by cutting a single superconducting strip and then bending around a specific node. Based on the magnetic flux conservation principle of a superconducting closed loop, an amplifying device with a function of amplifying the magnetic flux density in a space is manufactured, and the amplification factor is related to the ratio of the radiuses of two circular rings. The specific implementation method of the magnetic flux density amplifying device has field cooling and zero field cooling, the former is suitable for a constant magnetic field, and the latter is suitable for a constant magnetic field and an alternating magnetic field. The device is manufactured without any welding, and belongs to a full-superconducting closed loop. According to the invention, resistance-free operation can be realized at a low temperature, the magnetic flux density in a space is amplified, and the anti-interference capability when a weak magnetic field is measured is improved. The device has the advantages of simple structure, no need of an external power supply, stable operation, adjustable amplification factor and the like.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Energy-saving method and system for block chain cargo compartment ventilation
PendingCN113353231AAccurate implementation of controlEasy to controlAuxillariesVessel ventillation/heating/coolingData centerData acquisition
The invention discloses an energy-saving method and system for a cargo compartment ventilation system supporting a block chain. The method is characterized in that according to requirements of goods and personnel in a cargo compartment for ventilation, cooling, space temperature field cooling, power consumption and the like, an external communication device is connected with a micro base station through a wireless network or a built-in communication circuit is connected with the micro base station through a power line carrier, and data such as air outlet, temperature field, power consumption and the like of an active container are collected; for data such as airflow and heating of a passive container and non-container goods, ventilation requirements of all points in the compartment are calculated, and energy-saving control such as lowest energy consumption and longest equipment service life is realized by adopting steps such as a real-time control algorithm and an artificial intelligence algorithm. The system is characterized by comprising a data acquisition subsystem, a fan control subsystem, a data center subsystem and the like, and the system supports block chain remote maintenance and adjustment. Compared with traditional control, energy can be saved by 63% according to prediction, and the method and system can be used for new ship design and can also be used for old ship transformation and land storage.
Owner:深圳艾迪宝智能系统有限公司
Device and method for testing supporting characteristics of high-temperature superconducting suspension type flywheel rotor
PendingCN113899535ARealize measurementMachine part testingMechanical energy handlingRotational axisHigh temperature superconducting
The invention discloses a device and method for testing the supporting characteristics of a high-temperature superconductive suspension type flywheel rotor, and the device comprises a vacuum chamber, a cross-shaped sliding table, a first clamping structure, a second clamping structure, and a driving mechanism, and the first clamping structure clamps and fixes a superconductive stator at a preset position in the vacuum chamber. The second clamping structure clamps and fixes the rotor penetrating into the superconducting stator, the second clamping structure is arranged on the cross-shaped sliding table, the rotor is in power connection with the driving mechanism through the rotating shaft, and the rotor can be driven to move in the transverse direction and the longitudinal direction of the horizontal plane through movement of the cross-shaped sliding table, wherein a displacement sensor for sensing the horizontal relative position of the rotor and the superconducting stator is arranged on the rotating shaft, and a force sensor for sensing the axial suspension force and / or the radial suspension force is arranged in the axial direction and / or the radial direction of the superconducting stator. According to the invention, a field cooling position of the high-temperature superconducting suspension type flywheel can be adjusted to reach the optimal state, and the measurement of operation parameters in static and dynamic rotation states can be realized.
Owner:BEIJING MECHANICAL EQUIP INST
fuel cell device
The invention provides a fuel cell device, which comprises a negative collector plate, a negative combined flow field cooling plate, a membrane electrode assembly, a positive combined flow field cooling plate and a positive conducting panel, which are sequentially fitted and connected with one another, wherein the membrane electrode assembly comprises an exchange membrane, a plurality of negative catalyst layers, a plurality of negative gas diffusion layers, a plurality of positive catalyst layers and a plurality of positive gas diffusion layers; the negative collector plate comprises an insulting base body and a plurality of conductive layers; each conductive layer is connected with a collector terminal through a lead; each lead between each conductive layer and each collector terminal is connected with a current sensor in series; the negative combined flow field cooling plate and the positive combined flow field cooling plate are composed of a plurality of sequentially arranged conductive region modules and insulating region modules; and the insulating region modules are arranged between the adjacent conductive region modules. According to the fuel cell device provided by the invention, practical reaction performance distribution and reaction condition distribution of various local regions in the cell can be monitored in real time.
Owner:DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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