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32results about How to "Maximum collection" patented technology
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Single-stage boosting/reducing energy storage type photovoltaic grid-connected power generation control system
InactiveCN101917017AEliminate random fluctuationsImprove the quality of power supplySingle network parallel feeding arrangementsEnergy storageCapacitanceSingle stage
The invention discloses a single-stage boosting / reducing energy storage type photovoltaic grid-connected power generation control system, which comprises an energy storage type power conversion main circuit and a control system which are connected mutually. The energy storage type power conversion main circuit comprises a photovoltaic cell, an inductance and capacitance circuit network, an energystorage cell and a three-phase inverter which are connected mutually; and the control system is used for performing charging and discharging management on the energy storage cell, maximum power tracking and threshold control on the photovoltaic cell and closed-loop control on output active and reactive power of the three-phase inverter. The system finishes boosting / reducing, inversion and energy storage through single-stage power conversion, realizes the minimum inverter capacity with a simple structure, ensures the steady power of the power grid, can collect solar energy to the greatest degree, improves the power generation efficiency, realizes reactive compensation, electric peak regulation control and the like, and improves the quality of the power grid.
Owner:BEIJING JIAOTONG UNIV
Mobile-type shared agricultural unmanned aerial vehicle service station
PendingCN107792383ALower operating thresholdHighly integratedBatteries circuit arrangementsElectric powerElectricityAgricultural engineering
The invention aims to provide a mobile-type shared agricultural unmanned aerial vehicle service station capable of being simple in structure, self-sufficient, convenient to manage and high in integration level. The mobile-type shared agricultural unmanned aerial vehicle service station comprises at least one box body (1), a plurality of functional areas are arranged in the box bodies (1), and eachfunctional area is internally provided with an electricity supply system, an electricity storage system, an unmanned aerial vehicle operating system, a replenishment system, a transportation tool system and a management system. Each electricity supply system supplies electricity to the corresponding replenishment system and the management system. Each management system is connected with the corresponding electricity supply system, the electricity storage system, the unmanned aerial vehicle operating system and the replenishment system in an electrical signal mode. The management systems of each box body (1) are in communication with one another. The management systems are in communication connection with a peripheral master control console. The mobile-type shared agricultural unmanned aerial vehicle service station is applied in the field of agricultural equipment.
Owner:ZHUHAI YUREN AGRI AVIATION CO LTD
Optical system of multichannel fluorescent quantitative PCR instrument
PendingCN108181239AImprove spectral utilizationOvercoming the large difference in light intensity between holesFluorescence/phosphorescenceAgainst vector-borne diseasesFluorescenceLight source
The invention relates to an optical system of a multichannel fluorescent quantitative PCR instrument. A plurality of optical fiber scanning ends are arranged on a plurality of scanning lenses respectively; each optical fiber scanning end is provided with two transmission optical fibers, each optical fiber scanning end is connected with an optical fiber light inlet end through one of the transmission optical fibers, and each optical fiber scanning end is connected with an optical fiber light outlet end through the other transmission optical fiber; the exciting light emitted by an LED light source enters the optical fiber light inlet end after being condensed by a convex lens, the exciting light enters each transmission optical fiber respectively through the optical fiber light inlet end, then is transmitted to each optical fiber scanning end and exits from each scanning lens, the emission light emitted by a sample after being irradiated by the exciting light is converged to each opticalfiber scanning end through the scanning lens, enters each transmission optical fiber scanning end respectively and then is transmitted to the optical fiber light outlet end, and the emission light exits from the optical fiber light outlet end and enters an imaging sensor through a lens assembly. The technical scheme can improve the spectral utilization rate of a light source, and can overcome theproblem of large light intensity difference between holes without adding internal reference fluorescent substances for internal reference correction.
Owner:张哲夫
A photovoltaic panel fixing device for intelligent buildings, which is convenient to adjust the daylighting angle
InactiveCN109167560AImprove cleaning efficiencyStrengthen supportPhotovoltaic supportsSolar heating energyWater tanksWater supply
The invention discloses a photovoltaic panel fixing device for intelligent building which is convenient to adjust daylighting angle, including the base, Support bar and fixing bar, the left and rightends of the base are penetrated with fixed bolts, the upper end of the supporting column is penetrated with a bearing plate, the right side of the support bar is provided with a first motor, the upperend of the fixing rod is fixedly connected with the fixing plate through a connecting shaft, the rear end of the limiting plate is penetrated with an adjusting shaft, The brush is fixedly connected with the connecting plate through a screw rod, the right end of the adjusting shaft is provided with a second motor, the right side of the supporting column is provided with a third motor, the upper surface of the bearing plate on the left side of the fixing rod is provided with a water tank, the right side of the water tank is penetrated with a water supply pipe, and the upper end of the water supply pipe is connected with a sprinkler head. The photovoltaic panel fixing device for intelligent buildings, which is convenient to adjust the daylighting angle, can rotate the photovoltaic panel, enable the photovoltaic panel to collect solar energy to a greater extent, and can clean the impurities on the surface of the photovoltaic panel.
Owner:安徽高科电子股份有限公司
Catchment thin film for improving survival rate of planting in desert
InactiveCN101347085AMaximum collectionRetain moistureSelf-acting watering devicesPlant protective coveringsImproved survivalEngineering
The invention discloses a water collecting film for improving the survival rate of trees planted in deserts. The water collecting film is provided with a funnel-shaped film body (3) which is wide at the top and narrow at the bottom, a funnel upper opening (1) is arranged on the funnel-shaped film body (3) and a funnel lower opening (2) is arranged below the funnel-shaped film body (3); the upper half part of the funnel-shaped film body (3) is an nonporous section (4), and the lower half part thereof is a through hole section (5); the through hole section (5) is evenly distributed with a plurality of round holes around the circle center. By adopting the water collecting film of the invention, the moisture around the root part can be effectively maintained, and the survival rate of seedlings can be improved under the same natural environment.
Owner:彭小航
Display device
InactiveCN103325359AAvoid accidental touchMaximum collectionCathode-ray tube indicatorsDisplay deviceEngineering
The invention provides a display device which comprises a display unit, a photoinduction unit and a control unit. An accommodating hole is formed in the middle position of the top of the display unit. The vertex angle of the vertical cross-section of the accommodating hole is an obtuse angle. The photoinduction unit is arranged in the accommodating hole and used for periodically inducting the brightness of the environment surrounding the display device. The control unit is electrically connected with the photoinduction unit and used for obtaining the ambient brightness value inducted by the photoinduction unit so as to determine a current brightness level corresponding to the current ambient brightness value and judge whether the current brightness level changes relative to a historical brightness level; if the current brightness level changes, the display brightness of the display unit is adjusted according to the current brightness level. The display device can be effectively prevented from being touched by a user by mistake, and can collect the light in the environment surrounding the display device to the maximum extent so as to improve the sensing accuracy.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
Single-particle sampler
ActiveCN102221483AShort sampling timeEasy to carryWithdrawing sample devicesAir pumpParticle sampling
The invention relates to a single-particle sampler, comprising an air inlet, a sampling head, an air pump, a flowmeter and an air outlet, wherein the air inlet is communicated with an admission nozzle of the sampling head by a vent pipe; the air outlet is communicated with an air outlet nozzle of the sampling head by the vent pipe; the flowmeter is arranged on the vent pipe; and the air outlet iscommunicated with the air pump. The single-particle sampler is characterized in that the sampling head is a single-particle sampling head and comprises the admission nozzle, the air outlet nozzle, anaccelerating chamber, a collecting chamber and a sample platform, wherein the admission nozzle is hermetically connected with the upper end of the accelerating chamber; the air outlet nozzle is hermetically connected with the lower end of the collecting chamber; the accelerating chamber is communicated with the collecting chamber by a hole; the accelerating chamber is funnel-shaped; the collecting chamber is internally provided with the sample platform; and a sampling membrane is arranged on the upper end surface of the sample platform. When being used for collecting single particles in the atmosphere, the single-particle sampler has the advantages of short sampling time, convenience in carrying, simpleness in operation, independent direct-current power supply, and the like.
Owner:QINGDAO GENSTAR ELECTRONICS TECH CO LTD
Water-saving type irrigating device for rose garden
InactiveCN107842058AAvoid churnImprove water saving performanceGeneral water supply conservationWater supply tanksWater savingInsulation layer
The invention discloses a water-saving type irrigating device for a rose garden, and relates to the field of irrigation. The water-saving type irrigating device for the rose garden comprises a water storage tank, wherein a water inlet tube penetrates through the top of the water storage tank; a water tank is fixedly mounted in the water storage tank; an irrigating tube penetrates through one sideof the water tank; one end of the irrigating tube penetrates through the water storage tank and extends out of the outer side of the water storage tank; a solenoid valve is arranged on the irrigatingtube; a through hole is formed in the top of the water tank; and an evaporation preventing device is arranged on the through hole and comprises a tube body. By arrangement of the evaporation preventing device, after rainwater enters the water tank, water evaporated in the water tank cannot reach the outside through the through hole, and therefore, loss of the rainwater is avoided; and by arrangement of a heat-insulation layer, the circumstance that water in the water tank is evaporated due to over-high temperature when the temperature of the outside in the summer is high is avoided, therefore,water loss is avoided, and the water-saving effect is improved.
Owner:无锡市鹅湖玫瑰园艺文化有限公司
Equipment for extracting hydrophobic fulvic acid in soil by adopting combination of two-stage resins
InactiveCN106706404AEfficient extractionSimple structurePreparing sample for investigationAlkalinityControl system
The invention provides equipment for extracting hydrophobic fulvic acid in soil by adopting combination of two-stage resins. The equipment comprises a reaction kettle, a pH regulating unit, a first filtering and purifying unit, an acidifying box, an acidity and alkalinity regulating unit, a second filtering and purifying unit, a liquid storage device, a fulvic-acid extracting unit and a main control system, wherein an inlet of the reaction kettle is connected with an outlet of the pH regulating unit, and an outlet of the reaction kettle is connected with an inlet of the first filtering and purifying unit; an inlet of the acidifying box is connected with an outlet of the first filtering and purifying unit and the acidity and alkalinity regulating unit, and an outlet of the acidifying box is connected with an inlet of the second filtering and purifying unit; an outlet of the second filtering and purifying unit is connected with an inlet of the liquid storage device, and an outlet of the liquid storage device is connected with an inlet of the fulvic-acid extracting unit; and the pH regulating unit and the acidity and alkalinity regulating unit are connected with the main control system. The equipment for extracting hydrophobic fulvic acid in soil provided by the invention has the advantages that the structure is simple and convenient, the automation degree is high and solution with needed concentration can be effectively extracted.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Method for measuring phthalate in toys for children
InactiveCN110068626ASimple and fast operationLow detection limitComponent separationMicrowaveOrganic solvent
The invention belongs to the technical field of chemical detection, and particularly relates to a method for measuring phthalate in toys for children. The method comprises the following steps: 1) configuring a standard solution; 2) sample extraction: taking a representative sample, cutting or grinding the same, quantitatively weighing 0.500g and placing the same in an extraction flask, adding 15mlorganic solvent, performing microwave extraction, cooling to the room temperature, then performing rotary evaporation until 3-8ml concentrated solution is left, then adding the concentrated solutioninto a solid phase extraction column to perform a purification treatment, then rinsing the solid phase extraction column for several times with 9-15 ml organic solvent, collecting the eluent, fixing the volume to 25ml by using the organic solvent, and finally performing filtering by using a 0.45 mu m organic filtering membrane; and 3) analyzing the sample by using a gas chromatograph-mass spectrometer. Compared with the prior art, the method provided by the invention has the advantages of simple and convenient operation, high detection speed and high accuracy.
Owner:东莞市信准检测技术服务有限公司
Sand-containing gas sand collecting device in gas well sand production and sand control simulation experiment
InactiveCN104634618AThe principle is simpleEasy to operateWithdrawing sample devicesWeighing apparatus for materials with special property/formSoil scienceStreamflow
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Industrial indoor welding dust-collecting device
InactiveCN109249154AExtend the lifespanMaximum collectionDispersed particle filtrationTransportation and packagingActivated carbonEngineering
The invention discloses an industrial indoor welding dust-collecting device, comprising a box, a first support post, a second support post and a bottom plate. The box includes an intake port, an exhaust port, a filter chamber and a dust-collecting bucket; the filter chamber is communicated with the intake port; the filter chamber is releasably connected with the dust-collecting bucket; a suction fan is arranged below the dust-collecting bucket; the box is connected with the first support post via a driving mechanism mounted on the first support post; the driving mechanism includes a motor, a speed changer, a crankshaft, a bearing block and a transmission link; an output shaft of the motor is coaxially connected to one end of the crankshaft; the other end of the crankshaft is fitted in thebearing block; two ends of the transmission link are hinged to a round hole in a box lug and an eccentric segment of the crankshaft; the other side of the box is connected with the second support postvia a spring. The support posts and the driving mechanism allow surplus welding dust, attaching to the sidewall of the filter chamber during working of the device herein, to be shaken into the dust-collecting bucket, so that the service life of an activated carbon net is extended.
Owner:镇江微芯光子科技有限公司
Single-stage boosting/reducing energy storage type photovoltaic grid-connected power generation control system
InactiveCN101917017BEliminate random fluctuationsImprove the quality of power supplySingle network parallel feeding arrangementsEnergy storageCapacitanceSingle stage
Owner:BEIJING JIAOTONG UNIV
Vehicle-mounted test system for solar thermal collector
The invention relates to a vehicle-mounted test platform of a solar mobile hot water system or a thermal collector test system, and particularly relates to a vehicle-mounted test system for a solar thermal collector. The vehicle-mounted test system is connected with a sliding rack through a sliding rack driving device; in the moving process of a test device removing system, the sliding rack driving device moves on a chain drive removing mechanism fixed by chains through a servo motor drive sprocket to drive the sliding rack to slide on the guide rail, so that the solar energy realizes flexible operation by vehicle-mounted movement and the purpose of flexible detection is achieved. By adopting the system, the restriction that the working condition of the conventional solar thermal collector is at a permanent position is avoided, different-place operation by a vehicle-mounted moving method is used as the creative point, and the maneuvering detection on different positions can be realized according to the weather forecast information, so that the resources can be integrated and saved, and the natural sunlight detection utilization rate and the annual detection efficiency in China can be improved.
Owner:湖北省产品质量监督检验研究院 +1
Magnetic chip removal machine
PendingCN112045477AMaximum collectionThorough chip removalMaintainance and safety accessoriesWater wheelWater storage tank
The invention discloses a magnetic chip removal machine. The magnetic chip removal machine comprises a permanent magnet chip removal machine body, wherein a conveying belt and a permanent magnet are arranged on the permanent magnet chip removal machine body; a water pulse lifting part and a water wheel part are arranged on the lower end surface, close to the end part, of the permanent magnet chipremoval machine body; and the water wheel part is located on one side of the water pulse lifting part and is distributed in the arrangement direction of the conveying belt. According to the magnetic chip removal machine, the water pulse lifting part and the water wheel part are arranged on the lower end surface of the permanent magnet chip removal machine body, the water pulse lifting part is formed by hinging a suspension rod and a semicircular body, a semicircular water storage tank is formed in the upper end surface of the semicircular body, a lifting plate which is obliquely distributed isbent on one side of the semicircular body, one end of the lifting plate is put in liquid, an opening of the semicircular water storage tank faces upwards, the water wheel part rotates to generate water flow pulses, iron chips in flowing water enter the lifting plate, meanwhile, the water flow is pushed into the semicircular water storage tank, the semicircular water storage tank is overturned after being fully loaded with water, the iron chips are driven to ascend to be close to the permanent magnet chip removal machine body, so that the iron chips are adsorbed, and the iron chips do not needto be in direct contact with the liquid.
Owner:NANTONG GUOSHENG PRECISION MACHINERY
Device for extracting water-repellent humic acid from soil
InactiveCN106905382AEfficient use ofEasy to separateOrganic chemistryHigh concentrationControl system
The invention provides a device for extracting water-repellent humic acid from soil. The device comprises a reaction kettle, a pH regulating unit, a filtering and purifying unit, a first acidification tank, a first pH value regulating unit, an adsorption and enrichment unit, a second acidification tank, a second pH value regulating unit, a humic acid extraction unit and a total control unit. The device for extracting the water-repellent humic acid from the soil, provided by the invention, is simple in structure, convenient to operate and high in automation degree, can separate the water-repellent humic acid and other impurities conveniently and effectively, and can obtain a high-concentration water-repellent dissolved humic acid solution.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Drainage air sweeping blade and air conditioner
PendingCN110940079AAvoid drippingBlowout preventionCondensate preventionLighting and heating apparatusCold airFan blade
The invention provides a drainage air sweeping blade and an air conditioner, and relates to the technical field of air conditioners. The drainage air sweeping blade comprises a blade body and an installation structure, the installation structure is arranged on the blade body and connected with a fan blade cross beam, and a water guide rib is further arranged on the blade body, located over the installation structure and used for guiding condensate water on the blade body to the fan blade cross beam. During actual work, condensate water on the blade body can be guided to the fan blade cross beam through the water guide rib, the condensate water on the blade body is prevented from being gathered to the installation structure and dripping from the installation structure, and therefore the condensate water on the blade body is prevented from being blown out of the air conditioner under the effect of cold air. Thus, compared with the prior art, the drainage air sweeping blade further has the advantages that the experience feeling of the air conditioner is improved.
Owner:NINGBO AUX ELECTRIC +1
Preparation method for high brightness aluminum pigment
ActiveCN101585978BIncrease brightnessMaximum collectionVacuum evaporation coatingSputtering coatingOrganic solventSolid content
A preparation method for high brightness aluminum pigment is disclosed, which belongs to the technical field of preparing the aluminum pigment and which is implemented in accordance with the followingsteps that: A, on a roller coating machine, peelable resin is roller-coated on an aluminized film carrier formed by a high polymer thin film; B, the aluminized film carrier is put in a vacuum aluminizing machine and vacuum aluminizing is performed on the peelable resin so as to form an aluminized film with an aluminized layer; C, the aluminized film is put into a peeler and organic solvent is used to dissolve the peelable resin so that the aluminized layer can be separated from the high polymer thin film to form suspension; D, the suspension is subjected to liquid-solid phase separation on acentrifugal machine, obtaining an aluminum sheet aggregate having particle size of 20-50 microns; E, the aluminum sheet aggregate is agitated and pulverized on an all-purpose pulverization dispersionemulsifier to obtain aluminum sheets having particle size of 6-10 microns; F, the aluminum sheets are mixed and agitated with the organic solvent to form the high brightness aluminum pigment with 10-20% of solid content. With reasonable process, the invention can effectually reduce environmental pollution and enhance comprehensive performance of aluminum pigment.
Owner:长沙族兴新材料股份有限公司
A device for extracting soil hydrophobic humic acid
The invention provides a device for extracting soil hydrophobic humic acid, which includes a reaction kettle, a pH adjustment unit, a filtration purification unit, a first acidification tank, a first pH adjustment unit, an adsorption enrichment unit, a second acidification tank, and a second acidification tank. Two pH adjustment unit, humic acid extraction unit and total control system; the device for extracting soil hydrophobic humic acid provided by the present invention has simple structure, convenient operation, high degree of automation, and can conveniently and effectively extract hydrophobic humic acid and humic acid Other impurities are separated to obtain a high-concentration hydrophobic dissolved humic acid solution.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
A vehicle-mounted test system for solar collectors
ActiveCN102865997BFlexible operationFlexible detectionOptical apparatus testingMobile vehicleCollector device
The invention relates to a vehicle-mounted test platform for a solar mobile hot water system or a heat collector test system, in particular to a vehicle-mounted test system for a solar heat collector. The present invention connects the sliding frame driving device with the sliding frame. During the movement of the test device removal system, the sliding frame driving device drives the sprocket through the servo motor to move on the chain drive removal mechanism fixed by the chain, thereby driving the sliding frame to move Sliding on the guide rail realizes the purpose of flexible operation of solar energy by vehicle-mounted movement and flexible mobile inspection. The invention breaks through the limitations of the solar collector detection system with a fixed position as the working condition in the past, and uses the vehicle-mounted mobile mode to realize remote operation as an innovative point, and can realize the mobile detection at different positions according to the weather forecast information, so as to integrate and save detection resources, and improve my country's Natural sunlight detection utilization rate and annual detection efficiency.
Owner:湖北省产品质量监督检验研究院 +1
Pressure type blast furnace red slag waste heat recycling system and method
PendingCN110205418AGuaranteed not to leakReduce dosageIncreasing energy efficiencyWaste heat treatmentSteam condensationSlag
The invention discloses a pressure type blast furnace red slag waste heat recycling system and method, and belongs to the technical field of blast furnace red slag treatment. The system is characterized by at least comprising a slag flushing unit, a steam condensation heat exchange unit and a slag flushing water heat exchange unit, wherein the bottom of the slag flushing unit is connected with theslag flushing water heat exchange unit through a pipeline valve, and the top of the slag flushing unit is connected with the steam condensation heat exchange unit through a pipeline valve. A traditional slag flushing ditch and a tank are changed into a pressure method slag flushing tank, steam generated by slag flushing is collected, and waste heat is sufficiently recycled. The system and methodare suitable for iron and steel enterprises with relatively high environment control requirements.
Owner:XIAN HUAJIANG ENVIRONMENTAL TECH
A recyclable flexible surface-enhanced Raman scattering substrate and its preparation and application
ActiveCN108867026BQuick collectionMaximum collectionPhysical treatmentRaman scatteringPhysical chemistryTitanium dioxide
Owner:DONGHUA UNIV
Soil hydrophobic fulvic acid component extraction and purification device
InactiveCN106872231BSimple structureEasy to operatePreparing sample for investigationAlkalinityControl system
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
A floating wave energy generation system
ActiveCN104265550BRealize monitoringAchieve deliveryWind motor combinationsMachines/enginesEngineeringFloating platform
Owner:JIMEI UNIV
Method for batch preparation of large-pore nanofiber membrane
InactiveCN108774809AMaximum collectionReduce wasteFilament/thread formingNon-woven fabricsAir pumpNanofiber
The invention relates to a method for batch preparation of a large-pore nanofiber membrane. The method comprises the following steps that 1, a spinning solution needed by preparing the nanofiber membrane is prepared; 2, a second air pump connected with a roller through a second gas-guide tube is switched on, the second air pump conveys gas into the roller until the gas in the roller is uniform; 3,the prepared spinning solution is poured into a spraying device, a first air pump connected with the spraying device through a first gas-guide tube is switched on, the first air pump conveys gas intothe spraying device until stable bubbles are generated in the spraying device, a high voltage power supply is turned on, voltage is adjusted until electrostatic spinning is conducted on the surfacesof the bubbles. Accordingly, by arranging a receiving device to be a roller, the effects that nanofiber is collected to the maximum extent, and waste of resources is reduced are achieved. The method is simple in step and convenient to operate.
Owner:NANTONG TEXTILE & SILK IND TECH RES INST
Maintenance-free intelligent solar leading mark lamp
ActiveCN103267259BMaximum collectionHorizontal adjustment angleLighting applicationsPoint-like light sourceRemote controlEngineering
The invention provides a maintenance-free intelligent solar leading mark lamp. A base of the leading mark lamp is connected with a box body through an antitheft locking bolt, a bearing frame seat, a bearing frame, a solar support and a solar panel are arranged at the lower end of the box body, a light-operated device is arranged at the upper middle portion of the box body, a storage battery and a remote-control monitoring assembly are arranged in the box body, a turning cover is arrange at the top of the box body, a square sealing ring is arranged at the joint position between the turning cover and the box body, a rotating seat is arranged at the upper portion of the turning cover, and a waterproof pressing cover and a lamp head assembly are arranged on the rotating seat. The maintenance-free intelligent solar leading mark lamp can horizontally adjust an angle of the solar panel, can collect solar energy to the maximum degree and is suitable for light-limited mountains and rivers, especially the Heilong River Valley.
Owner:JINGZHOU LANYU NAVIGATION MARK EQUIP +1
Equipment for extracting soil hydrophobic fulvic acid using two-stage resin combination
InactiveCN106706404BEfficient extractionSimple structurePreparing sample for investigationControl systemEnvironmental engineering
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Single-particle sampler
ActiveCN102221483BShort sampling timeEasy to carryWithdrawing sample devicesParticle samplingAtmosphere
The invention relates to a single-particle sampler, comprising an air inlet, a sampling head, an air pump, a flowmeter and an air outlet, wherein the air inlet is communicated with an admission nozzle of the sampling head by a vent pipe; the air outlet is communicated with an air outlet nozzle of the sampling head by the vent pipe; the flowmeter is arranged on the vent pipe; and the air outlet iscommunicated with the air pump. The single-particle sampler is characterized in that the sampling head is a single-particle sampling head and comprises the admission nozzle, the air outlet nozzle, anaccelerating chamber, a collecting chamber and a sample platform, wherein the admission nozzle is hermetically connected with the upper end of the accelerating chamber; the air outlet nozzle is hermetically connected with the lower end of the collecting chamber; the accelerating chamber is communicated with the collecting chamber by a hole; the accelerating chamber is funnel-shaped; the collecting chamber is internally provided with the sample platform; and a sampling membrane is arranged on the upper end surface of the sample platform. When being used for collecting single particles in the atmosphere, the single-particle sampler has the advantages of short sampling time, convenience in carrying, simpleness in operation, independent direct-current power supply, and the like.
Owner:QINGDAO GENSTAR ELECTRONICS TECH CO LTD
Method and system for acquiring broadcast video clips
ActiveCN107147959BImprove viewing experienceMaximum collectionSelective content distributionPersonalizationEngineering
Owner:ZHONGGUANG REDIANYUN TECH CO LTD
Tea garden purging physical deinsectization machine
The invention relates to a tea garden purging physical deinsectization machine which comprises an air blower, an isolating membrane, an insect collection frame, a gas-distributing pipe and a pulling rope. The air blower is connected with the gas-distributing pipe through a gas outlet pipe, the gas-distributing pipe is mounted on the isolating membrane, and the insect collection frame covers the isolating membrane. The tea garden purging physical deinsectization machine is light in weight, high in overall strength, large in wind energy, wide in effective range and good in insect collection effect, wind directions can be changed back and forth, and insect leakage is omitted.
Owner:ZUNYI INST OF FORESTRY
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