智能石油密度分析仪(英文版).doc

SKM-1Intelligent oil density analyzerMakeUseSaysMingBook泰州市奥普特分析仪器有限公司TaiZhou City AoPuTe Analysis Instruments Co. Ltd.Chapter IIntroduction to instruments1-1Introduction to instrumentsSKM-1type smart oil density Analyzer is by computer control automatic run of gas expansion really density analysis system, can accurate determination powder body, and block solid, and pulp shaped material, and bubble, variety material of skeleton volume (containing closed hole) and really density, its measurement of speed fast, single station analysis process time is less than2min; results accuracy high, is superior to 0.04%.Analysis of material size ranges for10ml25ml.1-2Technical parametersTest principle:Gas expansion and substitution method;Test accuracy:Accuracy is better than0.04%Repeatability is better than0.02%Resolution:0.0001g/mlTest volume range:10ml25mlTest speed: Single station0.52minComplete the entire testing process.Automatically repeat tests:Automatically repeat tests until they reach a specified precision;Scope of application:Sample density of oil and petroleum products。Developed on the basis of this size is not restricted, can determine a variety of powdered, granular, lumpy, foam-like solid samples, volatile liquid and paste-like substance, not samples;Sample cell volume:25mlSample cell installation:Mounted below (quick connector), to sample cell samples directly as a sample cartridge, with samples of sample storage volume utilization high vantage, which makes precision can be improved; mounted bayonet under sample cell, can meet the needs of large volume zhuangyang in order to achieve the objective of improving test precision.Standard cartridge:Analysis of each station has a built-in1A standard cartridge,1Extended cavity; extended cavity for different sample pool size to improve testing precision program according to the sample pool size automatically select whether to enable extended cavity;Pressure balancing time:With automatic by default, user choice and user-defined three models of pressure balancing time and adapt without the structural State of the samplePressure range:7585kPaAdjustable air supplySelf test process:Advanced Smart self test process, intelligent sample cell for any leak tightness and the instrument is qualifiedA thorough solution to human error;Test gases:40Pure helium rise, purity 99.999%; Nitrogen and other gases can be selected;Remote control:With remote control functions;Accessories:Valves and pressure sensors all imports;Instrument appearance:H610*W450*L550mm；25kg；Figure11-3Instrument features1. thewhole process runs fully automated intelligentto avoid errors caused by human action.2.Accuracy tests good, solve the problem of leaching method for sample dissolution, high accuracy, significantly better than liquid pycnometer method.3.Test procedure does not change the properties of the sample, after testing samples of intact, can be used for other projects4.-Mounted under sample pools installation, improve utilization of sample storage volume, improve test accuracy.5.testing is completed automatic recovery function at atmospheric pressure to prevent sample splash.6.clear images of graphical control interface, and all the hardware at the interface of control actions.7.Super stability, even if an unplanned outage, break, and current data will be lost.8.Network remote control functions.1-4Test principleApplication Archimedes principle-gas expansion replacement law, uses small molecular diameter of inert gas in must conditions Xia of glass, law (PV=nRT), through determination due to samples samples warehouse into samples by caused of samples samples warehouse gas capacity of reduced to precise determination samples of skeleton volume (containing closed hole), thereby get its really density, really density = quality/skeleton volume.Gas expansion and substitution method is replaced by a gas discharge in the liquid sample volume.This method excludes the possibility of leaching method for sample dissolution, has the advantage of without damage to the sample.Because the gas can into the small samples of irregular air porosity and surface subsidence, so sample size closer to the skeleton of the sample volume is measured, which can be used to calculate the density of the sample, the test values are closer to the true density of the sample.Instrument test system and standard of the sample the sample Bin bin form, as shown in figure.When the sample density, the instrument automatically collect standard cartridge pressurep1and volumev1and recorded; must have samples of unknown volumevsamplesinto a known volumev2samples samples of silo,To inject a certain amount of gas into the bunker and record samples samples stabilizes pressureP2; sample sample cartridge with the standard cartridge connected and logged steady pressurep3, the balancing stable pressure values and the associated known volumev1, andv2is calculated to be measured sample volumeVThe sample, calculated by the quality and volume of the sample the sample density.SKM-1Smart oil density determination instrument due to has advanced of fast connector, samples pool installed convenient, to samples pool directly as samples samples warehouse, has on samples samples warehouse volume utilization high of advantage; for25mlof samples pool, samples warehouse volume utilization above90%; thereby makes for few samples of test precision to improve; and usually of samples pool put stamped type,Load the sample cell test after test barrels stamped with the seal, test barrel+sample cell samples samples consisting of warehouses has a lot of useless space left, samples of low storage volume utilization,25mlpool of samples, samples of silo volume is below10%; resulting in a small sample of test accuracy it is difficult to guarantee.On the, put stamped type samples pool of volume subject Yu stamped of test barrels of volume, not applies big volume zhuangyang volume (difficult meet150mlvolume above of zhuangyang volume), and Xia loaded card mouth type of samples pool, can meet big volume zhuangyang of needs, makes zhuangyang ceiling reached500mlabove, to reached widened test range, and expanded applies surface, and improve test precision of purpose.1-5Calculation formulaAccording to the measuring principle, the specific calculation methods are described below:Instrument pneumatic structure diagramKeywords:P1: The standard cartridge pressureP2: The sample cartridge pressureP3: The equilibrium pressureV1: Standard bunker volumeV2: The sample bin volumeV3: Pipe sizeOpen the test valve, making Unicom sample warehouse and sample pools, pressure stabilizes, record pressure valueP2。Then close test valve, open the inlet valve, standard cartridge gas, filled to a specified pressure, close the inlet valve, pressure stabilizes, record pressureP1.At this point within the system (standard warehouse and sample warehouse) the molar volume of the gas is:N1RT=P2*V+P1*V(1)Then turn the test valve, standard warehouse and sample cell, pressure stabilizes, record pressureP3.Molar volume of gas in the system at this time are:N2RT=P3* (v+V)(2)Because this open location valve before and after the total molar volume of gases within the system without any changes, soyou can arrive at the following formula:n1RT= n2RT (3)By the formula(3)formula can be drawn (4):P2*V+P1*V= P3* (v+V)(4)The formula (4) changes equation (5):V=(P1-P3)*V/(P3-P2)(5)V-logging=Vsample tubing+V-vsample and, therefore, equation (5) can be turned into a formula (7):Vsamples= vsample bin+Vpipe-(P1-P3)*V/(P3-P2)(7)Proportion of sample=gsample quality/VsamplesChapter IISoftware interface3H-2000TDEquipment density is the companys independent research and development of automatic testing system software, database modules, and affinity with the powerful interface, making it easy and understandable.Software after the connection is completed, there will be software navigation pages interface (as in Figure2）。2Software interface is divided into2major modules, namely, the shortcut bar (figure3) and the action bar (figure4).(Historical data)34Chapter IIIEquipment and procedure descriptionsTest operations Description:Step one: open airTotal gas cylinder valve turn half a turn, valve opening pressure it to7585kPa(0.0750.085mPa).Step two: onlineOpen the power switch on the side of the instrument, then click theSKM-1-software icon.(Note: the first, and then open software)The third step: calibration(Note: when manipulating the sample tubes, please wear gloves to prevent hand temperature effects on the test)According to the sample, the selection of the appropriate sample tubing.(Fewer samples, select a small sample tube; amount of samples, select medium or large sample tube),Tube installed in the test sample.Align the nozzle and test sample interface, left-handed wild card and pushed up right push the sample tube from the Middle upwards, let go of the left hand sleeve automatically locking (when taken above).Click in the software, enter and click.When the test is finished, automatically save data for a week.(Note: the recommended disposable sample tubes all volume testing, labels, tests can be directly used in the future will no longer test the air traffic volume, after testing you can omit this step)The fourth step: zhuangyang(Note: when manipulating the sample tubes, please wear gloves to prevent hand temperature effects on the test)To get the specimen to be measured in the sample tube and then put to the test, installation method and measuring air traffic volume.Fifth step: testingATrue density test1,click on the configuration run project, enter and click configuration works, in the settings window, enter sample number and sample quality, install sample tube, click, and then clickAnd automatic sample volume measurement instrument, specific gravity, eventually automatic translation into standard density (20)2,determination of completion of real-time data can be automatically printed in the background, the measured data and automatically saves a week, available for future reference.The sixth step: shutdown, turn off gasClick on the left corner of the software menu, exit, then power off the instrument; close the cylinder valve to tighten, closing the valve to loosen.The fourth chapterInstruments, software installation4-1Instrument installation4-1-1Environmental requirements1. theuse of environmental requirements: temperature2025best (others on the temperature has little effect), the relative humidity is less than80%, vibration-free laboratory bench, clean and free of dust, clean gas.2.power supply: power supply, stable, requires AC220V 5%,50Hz.3.analytical balance: the need for use of 1 per thousand grams of analytical balance and.4-1-2Instrument installation and precautions1.standard configuration:SKM-1intelligent instrument for oil density of complete set of equipment shipped to the customers a total of5, including the host (in cartons), computer hosts a single (cartons), computer monitors (cartons), all-in-one printer (cartons), gas generators1.2.connect: the power to the connected equipment, and computers, printers, a printer connected to your computer.Serial data cable connected to the computer at one end232serial interface with instruments hosting data outlet connection at the other end.Pressure relief valve installed on the high-purity helium gas cylinders, tubes will be exports and instruments hosting helium valve inlet connection, make sure the airway is tight to prevent leakage.3.check: main interface plug, always check the gas road, valve leakage.Decompression valve ch