V锥流量计软件设计指南

V-Cone FlowmeterCone FlowmeterSizing Program User’s GuideSizing Program User’s Guidesion 4.4.33For VersionFor VerWindows 95, 98, 2000, ME Program Installation(1) Close all major applications.(2) Start the installation by running the setup.exe provided on the CD.(3) Once the program has been installed there will be a new menu item in the start menu at the bottom of the list.The program will also create a shortcut to the program on your desktop.(4) When the program first runs you will be asked for some configuration information.Configuration questions:•Enter METRIC or US to set the default units of measure.METRIC or USIf nothing is entered then US units are the default.•Please enter a sub-title to print on sizing sheets; ie. Natural Gas Systems Inc.•Please enter the initials of the default applications engineer 5 characters max.•Select either 16 or 32 pixel height for the toolbar icons.SettingsThe following files can be customized by the program user:__SETTINGS.TXT basic settings, created when the program is first run__By.TXT list of user initials__CAL FACILITY.TXT calibration facilities__CAL FLUID.TXT calibration fluids__NDT DYEPEN.TXT dye penetrant exam standards__NDT HYDRO.TXT hydrostatic pressure test standards__NDT XRAY.TXT x-ray examination standardsSoftware Technical Support & UpdatesURL: /sizingsPhone #: USA 1-909-652-6811File SystemNew Open Save E-mail PrintFiles are saved using standard Windows conventions.1. New File: This clears the fields, but does not allocate a filename, nor save any data.2. Open File: This opens a dialog to open a *.V25 file. The dialog will remember the last location thatyou navigated to using the dialog.3. Save File: If there isn’t a current file name the user will be asked to select a filename which can bedifferent than the tag number. If the file was opened or saved previously the file will be saved withoutasking for a file name or location. If you want to save the file to a different name or location select‘Save As’ on the file menu. The current file name is displayed in the program title bar.4. E-mail: The current file is added to an attachment in a new email.5. Print: The sizing is printed to the current printer settings.To change the current printer settings select ‘Printer Setup’ on the File Menu.Entered and Estimated Data1. Fluid properties and other sizing values are estimated by default but can be entered directly.Click the label to the left of the field to change a field to and from entered and estimated.2. There is not always an estimation available for a property.Warnings1. There are seven warning boxes:Low Y Factor The Y factor is less than 0.96, however the application may be acceptableLow Dp The minimum Dp is <= 0.1 inWC.Low Re The minimum Re is <= 8000, however the application may be acceptable.Cavitation Cavitation (flashing) may be present. Possible fix is to decrease the fs Dp.High Dp The Dp fullscale is too high.Gas at P,T The fluid may be in a gas state at the pressure and temperature given. (check Pv)Liquid at P,T The fluid may be in a liquid state at the pressure and temperature given. (check Pv)2. There are borders that appear around the density, viscosity, compressibility and isentropic exponentfield labels when a value is required.Calculation1. After the last field is populated with data, select another field to execute the calculation.If the sizing program does not solve for the target value please see the troubleshooting section.2. The sizing can be solved for one of the following:2a. fullscale flowrate (Q)2b. fullscale differential pressure (Dp)2c. meter inside diameter (ID)2d. beta ratio (Beta)*The solution for inside diameter is only intended to narrow the possible pipe sizes. Standard insidediameters are solved for. Once the inside diameter is populated the user should change the solve methodto Dp or Q and then change the inside diameter to meet the application requirements. To change thesolve method click one of the radio buttons located left of 2a, 2b, 2c, and 2d.Gas Expansion FactorNew Gas Expansion Factor (Rev August 2001)•conventional V-Cones:The new equation is the default. The adiabatic can be selected.•Wafer-Cone:The adiabatic equation is used with no option to use the new equation.•Pre-existing sizings:The above two rules apply.•low y factor warning:< 0.8 for new equation< 0.96 for Adiabatic equationThe option to set which equation is used is accessed from the menu bar – Options / Gas Expansion Factor TroubleshootingIf the sizing program does not solve for the target value:(a) The density can not be calculated or was not entered.(b) The flowrate entered causes the DP calculation to be so high that the DP calculation fails.Try lowering the flowrate or increasing the line size.(c) The flowrate unit of measure is inappropriate for the application.(d) The density calculation may fail due to the entered operating temperature.(e)Gas application.: Normal and Standard gas flows require values for Pb, Tb, and Zb.(f)Gas application.: The isentropic exponent doesn't have a value and therefore the Y factor is zero.TablesRange Beta vs. Dp (0.05 increments)This table shows a range of beta ratios from 0.45 to 0.85 in 0.05 increments.The user can click a row in the table to set the sizing beta ratio and Dp relationship.Range Beta vs. Dp (0.01 increments)This table shows a range of beta ratios from 0.45 to 0.85 in 0.01 increments.The user can click a row in the table to set the sizing beta ratio and Dp relationship.Turndown TableThe maximum flowrate divided by the minimum flowrate is the turndown.Example: 1000 SCFM / 100 SCFM = 10:1 turndownAll three tables above require that all of the necessary data is present.Sending FilesReceiving party has the sizing program:1. E-Mail the file from the program.Receiving party does not have the sizing program:1. Copy the data to the clipboard and paste the text into a new notepad file. Email the file.After the person receives the file it can be double clicked and should open in Notepad on their system.2. Copy the data to the clipboard and paste the text directly into an email.If this is done you should change the font to Courier New which is fixed size font.3. Print and fax the sizing report.4. Print the sizing directly to your fax server.5. Print the sizing directly to Adobe Acrobat 3.0 writer and then email.For more information on this method go to /acrobat.Special ModelsIf you require a special model please use the following syntax:{series}{size}-xx ie. VS10-XX, VW04-XXWith any special model be specific regarding material grades and coatings.Screen ColorsThe color settings can be changed by the user.Definitions:FG - ForegroundBG – BackgroundFG: units of measureFG: labels which can be clickedFG: labels for calculated only fieldsFG: labels for general fieldsFG: text boxes enteredFG: text boxes estimatedBG: text boxes estimatedSave ChangesFluid StateGAS or LIQUIDFluid list selections: The fluid state is set by the program.User entered fluid: The fluid state can be changed by clicking the fluid state label.If the fluid state is GAS it will toggle to LIQUID and visa versa.Fluid SelectionsFluid Selection Fluid StateWATER LIQUIDWATER BOILER FEED LIQUIDSTEAM GASNATURAL GAS 17.4mw GASNATURAL GA S 23.3mw GASNATURAL GAS 19.7mw GASAIR GASNITROGEN GASOXYGEN GASCARBON DIOXIDE GASMETHANE GASDIGESTER GAS 25.8mw GASDIGESTER GAS 30.0mw GASOVEN 11.294mw GASHYDROGEN GASPROPANE GASCHLORINE GASAMMONIA GASETHYLENE GASOZONE GASHELIUM GASARGON GASHYDROGEN CHLORIDE GASCARBON MONOXIDE GASSULFUR DIOXIDE GASLIQUID OXYGEN LIQUIDLIQUID PROPANE LIQUIDKEROSENE 60°F 0.8sg LIQUID *User must only use this selection at 60 F°NAPTHALENE LIQUIDMETHANOL LIQUIDPROPYLENE LIQUIDBENZENE LIQUIDTypical Sizing Process1. Start a new record.2. Select the desired units of measure.3. Select a fluid from the fluid list. Examples: a. STEAM b. NATURAL GAS 17.4 mW c. TANK FEED WATER d. TANK SUPPLY LINE (WATER) In example c the properties of water are used even though there is a special name.In example d the properties of water are used and the word WATER is not printed on reports.4. Select a model number.For standard meter tubes the meter inside diameter is set automatically. 5. Select meter tube and cone material thermal coefficients.The aPE values are used to calculate the Fa term.Click the pipe and cone buttons in the dialog to set the values to entered on the main screen.6. Select the desired operating range; turn down. The maximum flowrate divided by the minimum flowrate is the turndown.7. Enter the line pressure, line temperature, full-scale flowrate, and inside pipe diameter: P, T, Q, I.D.8. Adjust the fullscale Dp and beta ratio relationship until satisfactory.A beta ratio can be selected by clicking the appropriate row in either of these two tables.The beta ratio and Dp can also be entered directly.9. Specify calibration requirements.10. Specify non-destructive testing. 11. Specify an application industry. 12. Save the file.Tag # Fluid Serial #Fluid State Job Ref. End User ModelIndustryDescriptionNoteC f coefficient of flow Q max. Flowrate McCrometer Cal. P f line pressure Re max. Reynolds Third Party Cal. T f line temperature V max. VelocityDye Pen. ExamNDTρ density (rho) ∆P max. Dp Hydro. Test Non - µ viscosity (mu) ∆P min. DpX-Ray Exam. Destructive - G specific gravity D Meter I.D. inside diameter Mag. Part. TestsZ gas compressibility d Cone O.D. cone outside diameter PMI NDTY gas exp ansion factor βBeta RatioCMTR Copies material cert. k isentropic exponentTurn Down max./min flow Application Eng. sized byC P gas specific heatVelocity Gas Exp.∆P Flowrate Mw molecular weightReu/m Y u/m u/m P b gas base pressure T b gas base temperatureZ b gas base comp. P baro barometric pressure P c critical pressure T c critical temperature F a thermal exp. factor aPE material therm. coef. P v vapor pressure HLestimated headloss ⇐ Entered ValueTable based on one flow condition (P,T, Z, k . . .) Program Version 4.3Record Start Date Print Datecustomer tag numberSerial # (used as required)used as requiredV-Cone Model Number fluid nameGAS or LIQUIDend userselect from a McCrometer list of industriesdescription of model: If model is from the literature then the description is entered by the program.misc. note V-Cone® Preliminary Sizing"sub title: user defined"“ The V-Cone Sizing Program can not be installed, copied nor used without permission from the sales andmarketing staff of McCrometer Inc. ”。