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42results about How to "Meet the research requirements" patented technology
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Phase transition behavior measurement system for phase transition energy storage material
InactiveCN1542439AMeet the research requirementsSample size can be large or smallInvestigating phase/state changeTemperature curveAnalog signal
The multi-channel phase change behavior test system for phase change energy storing material consists of constant temperature container, sample cup, temperature sensor for measuring temperature inside the measured sample, signal processor for amplifying and processing the analog signal from the temperature sensor, A / D converter for converting the analog signal into digital signal, and notebook computer for analyzing the tested temperature curve to determine the phase change behavior parameters, connected successively. The system of the present invention completes the automatic monitoring and has high detection precision, high reliability, low cost and movability.
Owner:TONGJI UNIV
Dynamic simulation device and method thereof of super and extra high voltage controllable magnetic control shunt reactor
ActiveCN101741307AThe protection function is effectiveMeet the needs of experimental researchConversion without intermediate conversion to dcShunt reactorAlternating current
The invention provides dynamic simulation device and method thereof of a super and extra high voltage controllable magnetic control shunt reactor, wherein the dynamic simulation device is capable of accurately simulating magnetic control shunt reactors with different capacities in 500kV, 750kV and 1,000kV power transmission systems. A simulation body consists of three single-phase magnetic control reactors; each single-phase magnetic control reactor is in a three-column structure; two beside core columns are working iron cores; a main alternating current winding and a direct current control coil are wound on each working iron core; and main alternating current windings on the two iron core columns are connected in parallel and connected to a power grid. Control windings are separated from the main windings so as to ensure the safety and the reliability of the device during work. The main windings are provided with twelve turn-to-turn short circuit taps which can respectively simulate 1-25 percent of turn-to-turn short circuit faults from the high-voltage side and the neutral point side; and the control windings are provided with seven turn-to-turn short circuit taps which can simulate 1-25 percent of turn-to-turn short circuit faults from the neutral point side. The body of the device is provided with a current transformer and a voltage transformer on a primary side, which are used for meeting the requirement for protecting a reactor body in a dynamic simulation test.
Owner:CHINA ELECTRIC POWER RES INST +1
Dynamic analog device for graded controllable parallel reactors and test method thereof
ActiveCN101710820AMeet the research requirementsConversion without intermediate conversion to dcShunt reactorHigh pressure
The invention provides a method using a dynamic analog device for ultrahigh-voltage transformer type graded controllable parallel reactors, which is designed to accurately simulate a dynamic analog device for transformer type graded controllable parallel reactors with different capacities in 500 kV, 750 kV and 1000 kV power transmission systems. The primary side of the analog device body is in a single-phase discrete type, and three phases are connected to form a Y shape; and a primary winding is provided with 12 turn-to-turn fault taps which can respectively simulate 1-25% of turn-to-turn faults from the high-voltage side to the neutral point side. The secondary side of the analog device body is in a single-phase closed connection way, and the tail end is directly grounded. The capacities are divided into 9 grades: 100%, 75%, 62.5%, 56.25%, 46.875%, 37.5%, 31.25%, 18.75% and 15.625%. The primary side and the secondary side of the analog device body are respectively provided with a current transformer and a voltage transformer, thereby being capable of satisfying the demands for reactor body protection in a dynamic analog test. Aiming at the body protection on the ultrahigh-voltage controllable parallel reactors and the line protection on installation of the controllable parallel reactors, the invention provides a dynamic analog test method.
Owner:CHINA ELECTRIC POWER RES INST
Metering device and metering method of laboratory trace gases
InactiveCN103674156ASimple structureEasy to manufacture and installVolume measurement apparatus/methodsWater bathsControl cell
The invention relates to a metering device of laboratory trace gases. The metering device is composed of a gas purifying unit, a metering and collecting unit and a control unit. The gas purifying device comprises a gas inlet pipe, a drying pillar, a desulfurization pillar and a gas inlet electromagnetic valve. The drying pillar is filled with drying agents and the desulfurization pillar is filled with desulfurization agents. The metering and collecting unit comprises a U-shaped metering tube, a constant-temperature water bathing groove, a gas outlet electromagnetic valve, a gas outlet electromagnetic valve outlet pipe and a gas collecting bag. Metering liquid is put in the U-shaped metering tube which is arranged in the constant-temperature water bathing groove. The control unit comprises a liquid level control device, a gas inlet electromagnetic valve control switch, a gas outlet electromagnetic valve control switch, an electronic reader and a power supply. The metering device of laboratory trace gases has the advantages of being simple in structure, convenient to manufacture and install, low in manufacturing cost, easy to implement, high in accuracy of the metering method, high in applicability, capable of accurately measuring the total gas generation amount and the target gas amount, capable of measuring the speed of gases and capable of totally meeting the laboratory study requirements.
Owner:AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
Circulating pipe network water quality comprehensive simulation test system with multi-channel flow switching calibration
The invention discloses a circulating pipe network water quality integrative simulation test system with multichannel flow switching and calibrating devices. The system comprises a water supply subsystem and an independent circulating pipe network subsystem, wherein the water supply subsystem comprises a first water supply water tank and a second water supply water tank; the first water supply water tank is provided with a water inlet, a water outlet and a chemical filling hole; the second water supply water tank is communicated with the first water supply water tank by a pipeline with a second valve and is provided with a water inlet, a water outlet and a chemical filling hole; the independent circulating pipe network subsystem is a loop comprising a main circulating pump, a multichannelflow switching and calibrating device and a high-level water replenishing and exhausting water tank which are connected in series by virtue of pipelines; the loop is connected with a first pipeline branch for realizing closed circulation, a water replenishing system, an emptying branch, a water quality online monitoring system and a temperature control system; and meanwhile, chemical filling systems are also connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the advantages of high simulation degree and capability of simulating various working conditions of municipal water supply pipe network systems.
Owner:ZHEJIANG UNIV
A comprehensive water quality simulation test system for circulating pipe networks with visible pipe sections
The invention discloses a circulating pipe network water quality integrative simulation test system with visible pipe sections. The system comprises a water supply subsystem and independent circulating pipe network subsystems, wherein the water supply subsystem comprises a first water supply water tank and a second water supply water tank; the first water supply water tank is provided with a water inlet, a water outlet and a chemical filling hole; the second water supply water tank is communicated with the first water supply water tank by a pipeline with a second valve and is provided with a water inlet, a water outlet and a chemical filling hole; each independent circulating pipe network subsystem is a loop comprising a main circulating pump, a multichannel flow switching and calibratingdevice, a visible pipe section and a high-level water replenishing and exhausting water tank which are connected in series by virtue of pipelines; the loop is connected with a first pipeline branch for realizing closed circulation, a water replenishing system, an emptying branch, a water quality online monitoring system and a temperature control system; and meanwhile, chemical filling systems arealso connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the advantages of high simulation degree and capability of simulating various working conditions of municipal water supply pipe network systems.
Owner:ZHEJIANG UNIV +1
Shearing box device for rock-like material
InactiveCN103323327ASatisfy the dislocationReduce misalignmentMaterial strength using steady shearing forcesW-boxEngineering
The invention belongs to the technical field of mechanical test equipment, and relates to a shearing box device for a rock-like material. Upper box moving parts are positioned at two sides of an upper shearing box, and are connected with an upper box top and an upper box bottom respectively; an upper box bottom fixed groove is fixedly formed in the lower side of the upper box bottom; a lower box top fixed groove is fixed in the upper side of a lower box top and corresponds to the upper box bottom fixed groove; lower box top fixed rolling balls are uniformly distributed in the lower box top fixed groove; lower box moving parts are connected with a lower box top and a lower box bottom fixedly and respectively; two lower box direction moving plates are respectively fixed on the upper and lower end parts of different lower box direction fixed plates; a lower box bottom direction plate is combined with a lower box bottom threaded rod; the bottom end of the lower box bottom threaded rod is fixed on the lower box bottom, and the top end of the lower box bottom threaded rod is in contact with the lower box bottom direction plate. The shearing box device for the rock-like material is simple in integral structure principle, is flexible and convenient to use and operate, has a good observation effect, is high in sampling success ratio, is high in adaptability, and ensures high test result accuracy and environment-friendly experiments.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY
A comprehensive simulation test system for circulating pipe network water quality
ActiveCN102288738AMeet the research requirementsEasy to drainTesting waterMonitoring systemWater quality
The invention discloses a circulating pipe network water quality integrative simulation test system. The system comprises a water supply subsystem and an independent circulating pipe network subsystem, wherein the water supply subsystem comprises a water supply water tank provided with a water inlet, a water outlet and a chemical filling hole; the independent circulating pipe network subsystem isa loop comprising a main circulating pump, an electromagnetic flowmeter and a high-level water replenishing and exhausting water tank which are connected in series by virtue of pipelines; the loop isconnected with a first pipeline branch for realizing closed circulation which can be switched to quasi closed circulation, a water replenishing system for replenishing water for the loop, an emptyingbranch for discharging the water in the loop and a water quality monitoring system; and meanwhile, chemical filling systems are also connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the following advantages: the system has high simulation degree and is closer to the practical municipal water supply pipe network systems.
Owner:ZHEJIANG UNIV
A comprehensive simulation test system for water quality of circulating pipe network with temperature control system
The invention discloses a circulating pipe network water quantity integrated simulation test system with a temperature control system. The system comprises a water supply subsystem and an independent circulating pipe network subsystem; the water supply subsystem comprises a first water supply tank and a second water supply tank, wherein the first water supply tank is provided with a water inlet, a water outlet and an agent injection port, and the second water supply tank is communicated with the first water supply tank by using a pipeline with a second valve and provided with a water inlet, awater outlet and an agent injection port; the independent circulating pipe network subsystem is a loop comprising a main circulating pump, an electromagnetic flow meter and a high-level water supply and exhaust water tank connected in series through a pipeline; and the loop is connected with a first pipeline branch for realizing closed circulation, a water supply system, an emptying branch, a water quality monitoring system and the temperature control system. The pipeline of the independent circulating pipe network subsystem is connected with an agent injection system. The circulating pipe network water quantity integrated simulation test system with the temperature control system has the advantages of high simulation degree and capability of simulating multiple actual municipal water supply pipe network system working conditions by cooperation of the components.
Owner:ZHEJIANG UNIV +1
A comprehensive simulation test system for water quality of circulating pipe network with static water pipe section
The invention discloses a circulation pipe network water quality comprehensive simulation test system with a stationary water pipe section, which comprises a water supply subsystem and an independent circulation pipe network subsystem; the water supply subsystem comprises a first water supply water tank and a second water supply water tank which is communicated with the first water supply water tank by a pipeline with a second valve; the independent circulation pipe network subsystem comprises a main circulating pump, a multichannel flow-switching calibration device, a visible pipe section, and a loop of a high-level water-supplementing exhausting water tank which are in serial connection by pipelines; the loop is connected with a first pipeline branch, a water-supplementing system, an emptying system, a water quality on-line monitoring system, a temperature-control system, a replacement pipe section branch, and a stationary water pipe section which are used to realize closed circulation. Meanwhile, a medicament injecting system is connected to the pipeline of the independent circulation pipe network subsystem. With the mutual cooperation of each part, the circulation pipe networkwater quality comprehensive simulation test system has the advantages of high fidelity, and capability of simulation of conditions of various actual municipal water supply pipe network systems.
Owner:ZHEJIANG UNIV +1
A comprehensive water quality simulation test system for a circulating pipe network with a replacement pipe section
The invention discloses a water quality comprehensive simulation test system with replacement pipe sections for a circulating pipe network. The system comprises a water supply subsystem and independent circulating pipe network subsystems. The water supply subsystem includes a first water supply tank and a second water supply tank communicated with the first water supply tank through a pipeline with a second valve. Each independent circulating pipe network subsystem includes a main circulating pump, a multichannel flow switch calibration device, a visible pipe section and a loop of a high water supplement and exhaust tank that are connected in series by a pipeline. The loop is in connection with a first pipeline branch for realizing closed circulation, a water supplement system, a blowdownbranch, a water quality on-line monitoring system, a temperature control system and replacement pipe section branches. Meanwhile, the pipeline of the independent circulating pipe network subsystem isalso connected to a reagent filling system. Making use of the interaction among all parts, the water quality comprehensive simulation test system for a circulating pipe network has the advantages of high simulation degree and ability to simulate the working conditions of a plurality of municipal water supply pipe networks.
Owner:ZHEJIANG UNIV
Test device for stored/released energy of shaped phase-change material
InactiveCN104677933AMeet the research requirementsLow costMaterial heat developmentTest samplePhase-change material
The invention discloses a test device for stored / released energy of a shaped phase-change material. The test device comprises a test container, wherein the test container is connected with a signal conditioning module and an industrial controller through a guide wire respectively; an A / D (analog to digital) conversion module is arranged between the signal conditioning module and the industrial controller; the industrial controller is connected with a clock module, a display screen and a keyboard respectively. The test device for stored / released energy of the shaped phase-change material is relatively wide in scope of application, adjustable in size of a to-be-tested sample, capable of meeting research needs of a relatively phase-change material, and suitable for researching and developing a relatively thick material; a temperature distribution condition, in a phase-change process, inside the phase-change energy storage material can be tested to provide experimental data to research the phase-change mechanism; a plurality of test samples can be tested simultaneously; application environment under different conditions can be simulated by regulating the internal temperature and the size of the constant-temperature container. Compared with thermal analysis apparatuses such as a DSC (differential scanning calorimeter) which are millions of yuan in price and the like, the test system disclosed by the invention is low in cost.
Owner:SHAANXI UNIV OF TECH
A comprehensive water quality simulation test system for dual water source water supply circulation pipe network
ActiveCN102289979AUniform water qualityWell mixedTesting waterEducational modelsWater sourceMonitoring system
The invention discloses a double water source water supply circulating pipe network water quality integrative simulation test system. The system comprises a water supply subsystem and independent circulating pipe network subsystems, wherein the water supply subsystem comprises a first water supply water tank and a second water supply water tank; the first water supply water tank is provided with a water inlet, a water outlet and a chemical filling hole; the second water supply water tank is communicated with the first water supply water tank by a pipeline with a second valve and is provided with a water inlet, a water outlet and a chemical filling hole; each independent circulating pipe network subsystem is a loop comprising a main circulating pump, an electromagnetic flowmeter and a high-level water replenishing and exhausting water tank which are connected in series by a pipeline; the loop is connected with a first pipeline branch for realizing closed circulation, a water replenishing system for replenishing water for the loop, an emptying branch for discharging the water in the loop and a water quality monitoring system; and meanwhile, chemical filling systems are also connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the following advantages: the system has high simulation degree and is closer to the practical municipal water supply pipe network systems.
Owner:THE ARCHITECTURAL DESIGN & RES INST OF ZHEJIANG UNIV +1
Method and system for generating typical working condition of smooth fluctuation of energy storage system
ActiveCN105608302AShort operating time periodShort time periodData processing applicationsSpecial data processing applicationsAlgorithmData treatment
The invention discloses a method and system for generating a typical working condition of the smooth fluctuation of an energy storage system. The method comprises the following steps: obtaining the working data of the energy storage system under a smooth fluctuation mode; processing the working data to generate a smooth fluctuation curve and calculating according to the smooth fluctuation curve to generate corresponding feature distribution data; segmenting the smooth fluctuation curve according to a certain unit time so as to obtain a plurality of unit smooth fluctuation curve segments; selecting a certain quantity (a) of unit smooth fluctuation curve segments to form a plurality of combined smooth fluctuation curve segments with time length of a*t; calculating according to the combined smooth fluctuation curve segments to generate corresponding feature distribution data; calculating the error values between the feature distribution data corresponding to the combined smooth fluctuation curve segments and the feature distribution data corresponding to the smooth fluctuation curve; and selecting the feature distribution data, the error value of which is less than a certain numerical value, corresponding to the combined smooth fluctuation curve segments to synthesize a typical working condition diagram of the smooth fluctuation of the energy storage system.
Owner:STATE GRID CORP OF CHINA +1
Giant six-legged polar researchvehicle with tracked feet
ActiveUS20200216125A1Improve carrying capacityIncrease the effective contact areaSnowmobilesPV power plantsFlight vehicleSlide plate
A giant six-legged polar research vehicle with tracked feet, including a platform, six legs arranged at six ends of the platform and six tracked feet arranged below the six legs. A monitoring device is arranged on a top cover. Six power compartments each having a steering device are arranged at six ends of a chassis in the platform. Each leg includes a main traveling device with an upper end and a lower end respectively connected to the steering device and a tracked foot, an auxiliary traveling device with an upper end and a lower end respectively connected to the chassis and the main traveling device, and a connecting device arranged on the main traveling device. The tracked foot includes a main flipping mechanism, an auxiliary flipping mechanism, a tracked foot slewing device, a crawler, a sliding plate and a suspension.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY +2
Method for using dynamic analog device for graded controllable parallel reactors
ActiveCN101710820BMeet the research requirementsConversion without intermediate conversion to dcShunt reactorEngineering
The invention provides a dynamic analog system for ultrahigh-voltage transformer type graded controllable parallel reactors, which is designed to accurately simulate a dynamic analog device for transformer type graded controllable parallel reactors with different capacities in 500 kV, 750 kV and 1000 kV power transmission systems. The primary side of the analog device body is in a single-phase discrete type, and three phases are connected to form a Y shape; and a primary winding is provided with 12 turn-to-turn fault taps which can respectively simulate 1-25% of turn-to-turn faults from the high-voltage side to the neutral point side. The secondary side of the analog device body is in a single-phase closed connection way, and the tail end is directly grounded. The capacities are divided into 9 grades: 100%, 75%, 62.5%, 56.25%, 46.875%, 37.5%, 31.25%, 18.75% and 15.625%. The primary side and the secondary side of the analog device body are respectively provided with a current transformer and a voltage transformer, thereby being capable of satisfying the demands for reactor body protection in a dynamic analog test. Aiming at the body protection on the ultrahigh-voltage controllable parallel reactors and the line protection on installation of the controllable parallel reactors, the invention provides a dynamic analog test method.
Owner:CHINA ELECTRIC POWER RES INST
Leonurine phenolic acid ion salt and preparation method and application thereof
ActiveCN110251501AImprove antioxidant capacityGood solubilityCosmetic preparationsSalicyclic acid active ingredientsSolventLeonurine
The invention discloses leonurine phenolic acid salt and a preparation method and application thereof. The leonurine phenolic acid salt comprises anions and cations, the anions are phenolic acid ions and the cations are leonurine ions. The preparation method includes the steps of S1, adding phenolic acid to a solvent in an atmosphere of protective gas (preferably nitrogen or inert gas) and ice-water bath; S2, adding leonurine to the phenolic acid for neutral reaction to obtain a solution containing the leonurine phenolic acid salt which is applicable to preparation of drugs or cosmetics. The lenourine phenolic acid ion salt, which has various functions of the leonurine and phenolic salt has the effect of enhancing oxidation resistance compared with a phenolic acid monomer, has better solubility in both oil phase and water phase.
Owner:中科萱嘉医养(珠海)健康科技有限公司
Giant six-legged polar research vehicle with tracked feet
ActiveUS10913502B2Meet needsIncrease the areaSnowmobilesPV power plantsSlide plateSuspension (vehicle)
A giant six-legged polar research vehicle with tracked feet, including a platform, six legs arranged at six ends of the platform and six tracked feet arranged below the six legs. A monitoring device is arranged on a top cover. Six power compartments each having a steering device are arranged at six ends of a chassis in the platform. Each leg includes a main traveling device with an upper end and a lower end respectively connected to the steering device and a tracked foot, an auxiliary traveling device with an upper end and a lower end respectively connected to the chassis and the main traveling device, and a connecting device arranged on the main traveling device. The tracked foot includes a main flipping mechanism, an auxiliary flipping mechanism, a tracked foot slewing device, a crawler, a sliding plate and a suspension.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY +2
Circulating pipe network water quality integrative simulation test system
ActiveCN102288738BMeet the research requirementsEasy to drainTesting waterMonitoring systemWater quality
The invention discloses a circulating pipe network water quality integrative simulation test system. The system comprises a water supply subsystem and an independent circulating pipe network subsystem, wherein the water supply subsystem comprises a water supply water tank provided with a water inlet, a water outlet and a chemical filling hole; the independent circulating pipe network subsystem isa loop comprising a main circulating pump, an electromagnetic flowmeter and a high-level water replenishing and exhausting water tank which are connected in series by virtue of pipelines; the loop isconnected with a first pipeline branch for realizing closed circulation which can be switched to quasi closed circulation, a water replenishing system for replenishing water for the loop, an emptyingbranch for discharging the water in the loop and a water quality monitoring system; and meanwhile, chemical filling systems are also connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the following advantages: the system has high simulation degree and is closer to the practical municipal water supply pipe network systems.
Owner:ZHEJIANG UNIV
Dynamic simulation device and method thereof of super and extra high voltage controllable magnetic control shunt reactor
ActiveCN101741307BMeet the needs of experimental researchMeet the research requirementsConversion without intermediate conversion to dcShunt reactorAlternating current
The invention provides dynamic simulation device and method thereof of a super and extra high voltage controllable magnetic control shunt reactor, wherein the dynamic simulation device is capable of accurately simulating magnetic control shunt reactors with different capacities in 500kV, 750kV and 1,000kV power transmission systems. A simulation body consists of three single-phase magnetic control reactors; each single-phase magnetic control reactor is in a three-column structure; two beside core columns are working iron cores; a main alternating current winding and a direct current control coil are wound on each working iron core; and main alternating current windings on the two iron core columns are connected in parallel and connected to a power grid. Control windings are separated fromthe main windings so as to ensure the safety and the reliability of the device during work. The main windings are provided with twelve turn-to-turn short circuit taps which can respectively simulate 1-25 percent of turn-to-turn short circuit faults from the high-voltage side and the neutral point side; and the control windings are provided with seven turn-to-turn short circuit taps which can simulate 1-25 percent of turn-to-turn short circuit faults from the neutral point side. The body of the device is provided with a current transformer and a voltage transformer on a primary side, which areused for meeting the requirement for protecting a reactor body in a dynamic simulation test.
Owner:CHINA ELECTRIC POWER RES INST +1
A test device for storing/releasing energy of shaped phase change materials
InactiveCN104677933BMeet the research requirementsLow costMaterial heat developmentThermostatEngineering
A testing device for storing / releasing energy of a shaped phase change material disclosed in the present invention comprises a test container, the test container is respectively connected with a signal conditioning module and an industrial computer through wires, and an A / D conversion module is arranged between the signal conditioning module and the industrial computer , the industrial computer is respectively connected with a clock module, a display screen and a keyboard. The storage / release energy testing device for shaped phase change materials of the present invention has a wide range of applications, and the size of the sample to be tested can be large or small, which can meet the research requirements of relatively fine phase change materials, and is also suitable for the research and development of relatively coarse materials. Development; it can measure the temperature distribution inside the phase change energy storage material during the phase change process, and provide experimental data for the study of the phase change mechanism; it can measure multiple samples at the same time; by adjusting the internal temperature and volume of the constant temperature container, it can simulate different The application environment of the case. Compared with thermal analysis instruments such as DSC with a price of several million yuan, the test system proposed by the invention has low cost.
Owner:SHAANXI UNIV OF TECH
Circulating pipe network water quantity integrated simulation test system with temperature control system
The invention discloses a circulating pipe network water quantity integrated simulation test system with a temperature control system. The system comprises a water supply subsystem and an independent circulating pipe network subsystem; the water supply subsystem comprises a first water supply tank and a second water supply tank, wherein the first water supply tank is provided with a water inlet, a water outlet and an agent injection port, and the second water supply tank is communicated with the first water supply tank by using a pipeline with a second valve and provided with a water inlet, awater outlet and an agent injection port; the independent circulating pipe network subsystem is a loop comprising a main circulating pump, an electromagnetic flow meter and a high-level water supply and exhaust water tank connected in series through a pipeline; and the loop is connected with a first pipeline branch for realizing closed circulation, a water supply system, an emptying branch, a water quality monitoring system and the temperature control system. The pipeline of the independent circulating pipe network subsystem is connected with an agent injection system. The circulating pipe network water quantity integrated simulation test system with the temperature control system has the advantages of high simulation degree and capability of simulating multiple actual municipal water supply pipe network system working conditions by cooperation of the components.
Owner:ZHEJIANG UNIV +1
Magnetic droplet accelerator and operating method thereof
InactiveCN110095252AShrink the droplet acceleration regionCompact structureBatteries circuit arrangementsHydrodynamic testingMagnetic liquidsVoltage
The invention discloses a magnetic droplet accelerator and an operating method thereof, which relate to the field of droplet dynamics. The magnetic droplet accelerator comprises a droplet generator, alaser signal acquisition device, a solenoid, a coil gun module and a controller, wherein a magnetic liquid generated by the droplet generator drops into the solenoid from right above the solenoid, the laser signal acquisition device is arranged at an inlet of the solenoid, that is, where a droplet is about to fall into the solenoid, the coil gun module is connected with the solenoid and suppliespower to the solenoid, and the coil gun module and the laser signal acquisition device are each connected with the controller. The magnetic droplet accelerator occupies a small space and is convenientin placement and arrangement. The magnetic droplet accelerator accelerates the magnetic droplet by adopting a coil gun principle, and further controls acceleration of the droplet through changing anoutput voltage of a boosting module in the coil gun module, so as to achieve the purpose of controlling the droplet velocity. According to the magnetic droplet accelerator and the operating method thereof, the adjustable range of droplet acceleration is large, and the droplet is accelerated stably.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Cage structure microporous culture dish for forming three-dimensional microtissue of cells in vitro and preparation method thereof
ActiveCN108949524BAchieve trainingMeet the research requirementsBioreactor/fermenter combinationsBiological substance pretreatmentsCell culture mediaEngineering
The invention discloses a cage structure microporous culture dish for forming three-dimensional microtissues of cells in vitro and a preparation method thereof. The cage structure microporous culture dish is composed of four basic parts, and the first basic part is a modified bottom surface. Petri dish, the second basic part is the modified polymer microwell array, the third basic part is the cell screen, and the fourth basic part is the cell culture medium storage pool; the cage structure microporous culture dish can realize cell Inoculation, long-term cell culture, three-dimensional micro-tissue formation, online detection, multi-cell three-dimensional co-culture. The process of the invention is simple, easy to control and low in cost. When the cage structure microporous culture dish of the present invention is used for biological experiments, reagents are saved, the throughput is high, the operation is easy, and the three-dimensional culture of cells in vitro has high efficiency and good quality.
Owner:SHANGHAI UNIV
Preparation and regeneration method of Pythium oligandrum protoplast and composite enzymolysis solution
The invention provides a preparation and regeneration method of pythium oligandrum protoplasts. The reparation and regeneration method comprises the following steps: a, preparing thallospore hybrids; b, preparing protoplasts; c, purifying the protoplasts; and d, regenerating the protoplasts. According to the method, a complex enzyme system containing lysing enzyme, cellulsase and lyticase is adopted for carrying out enzymolysis on the mycelia of pythium oligandrum, then the pythium oligandrum protoplasts are obtained, and the protoplasts are regenerated through liquid shaking culture adopting a regeneration culture medium taking mannitol as an osmotic pressure stabilizer. The number of the pythium oligandrum protoplasts prepared by adopting the method is large, the yield is high, and the activity is good; through the liquid culture regeneration path, relatively high regeneration rate can be obtained, and the regeneration rate can achievce 1.25%. The method is easy and convenient to operate and good in stability, the obtained pythium oligandrum protoplasts can completely satisfy the research and application such as late gene genetic transformation and cell fusion. The invention further provides composite enzymatic hydrolysate for preparing the pythium oligandrum protoplasts, the composite enzymatic hydrolysate is a key factor in the preparation process of the pythium oligandrum protoplasts, and the enzymatic hydrolysate is suitable for being further developed and applied.
Owner:周剑平 +2
A metering method using a laboratory trace gas metering device
InactiveCN103674156BSimple structureEasy to manufacture and installVolume measurement apparatus/methodsSolenoid valveDesiccant
A laboratory trace gas metering device, which is composed of a gas purification unit, a metering collection unit and a control unit. The gas purification unit includes an air inlet pipe, a drying column, a desulfurization column and an inlet electromagnetic valve. The drying column is filled with desiccant, and the desulfurization column is filled with Filling with desulfurizer; the metering and collecting unit includes U-shaped metering tube, constant temperature water bath, gas outlet solenoid valve, outlet pipe of gas outlet solenoid valve and gas collection bag. The U-shaped metering tube is filled with metering liquid, and the U-shaped metering tube is placed in the constant temperature water bath. ; The control unit includes a liquid level controller, an air inlet solenoid valve control switch, an air outlet solenoid valve control switch, an electronic reader and a power supply. The advantages of the present invention are: the metering device is simple in structure, convenient to manufacture and install, low in cost, easy to implement, high in accuracy of the metering method, and strong in applicability. The rate can fully meet the laboratory research requirements.
Owner:AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
Carboprost tromethamine related impurity L-amyl 15-ketone and preparation method thereof
PendingCN112125874AMeet the research requirementsSimple and fast operationOrganic chemistryDehydrogenationKetone
The invention relates to a carboprost tromethamine related impurity L-amyl 15-ketone and a preparation method thereof. The preparation method comprises the following steps of: (1) in the presence of afifth organic solvent, carrying out dehydrogenation reaction on methyl triphenyl phosphine halide by using strong base, adding ethyl valerate after reaction for a certain time, continuously reactingfor a certain time to obtain 1-triphenylphosphine 2-hexanone; and (2) carrying out wittig reaction on the 1-triphenylphosphine 2-hexanone obtained in the step (1) and a second organic solvent solutionof benzoyl corey lactone aldehyde to obtain a pentyl-15 ketone crude product. The method has the advantages of simple and convenient operation, high safety, and high yield and purity of an obtained product under optimal conditions, and can meet the requirements for impurity research.
Owner:NORTHEAST PHARMA GRP
Design method and appearance of aerodynamic layout of plane-symmetric concave curved surface standard model
ActiveCN113886978ASimple configurationSmall disturbance in the flow fieldGeometric CADSustainable transportationFlight vehicleStructural engineering
The invention discloses a design method and appearance of aerodynamic layout of a plane-symmetric concave surface standard model. The design method comprises the following steps: S1, designing a contour line of a head area of an aircraft; S2, designing a plane area contour line of the surface of the aircraft; S3, designing a concave curved surface structure of the aircraft; S4, performing curved surface fillet processing on the concave curved surface structure designed in the step S3 to obtain an aircraft structure appearance; the invention provides a novel aerodynamic layout design method for a flight test standard model with a plane-symmetric concave curved surface feature and a shape generated based on the aerodynamic layout design method, and an optional standard model scheme can be provided for research on boundary layer transition.
Owner:CALCULATION AERODYNAMICS INST CHINA AERODYNAMICS RES & DEV CENT
Circulating pipe network water quality integrative simulation test system with visible pipe sections
Owner:ZHEJIANG UNIV +1
A method and system for generating smooth fluctuating typical operating conditions of an energy storage system
ActiveCN105608302BShort operating time periodShort time periodData processing applicationsSpecial data processing applicationsEngineeringData treatment
The present invention proposes a method and system for generating a typical working condition of smooth fluctuations in an energy storage system. The method includes: obtaining the working data of the energy storage system in the smooth fluctuation mode; The curve is calculated to generate the corresponding characteristic distribution data; the smooth fluctuation curve is segmented according to a certain unit time t to obtain multiple unit smooth fluctuation curve segments; a certain number of unit smooth fluctuation curve segments are selected to form multiple time length a The combined smooth fluctuation curve segment of ×t; according to the multiple combined smooth fluctuation curve segments, the corresponding characteristic distribution data is generated by calculation; the difference between the characteristic distribution data corresponding to the multiple combined smooth fluctuation curve segments and the characteristic distribution data corresponding to the smooth fluctuation curve is calculated The error value between; select the characteristic distribution data corresponding to the segment of the combined smooth fluctuation curve whose error value is less than a certain value, and synthesize a typical working condition diagram of the smooth fluctuation of the energy storage system.
Owner:STATE GRID CORP OF CHINA +1
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