1. Kev cuam tshuam ntawm cov dej ntws thiab cov dej ntws ncaj qha ntu ntawm qhov ntsuas qhov tseeb ntawm ultrasonic flowmeter.Lub calibration coefficient K yog qhov ua haujlwm ntawm Reynolds tus lej.Thaum qhov khiav ceev tsis sib npaug los ntawm laminar ntws mus rau turbulent flow, lub calibration coefficient K yuav hloov zoo heev, ua rau txo qhov ntsuas qhov tseeb.Raws li cov kev xav tau ntawm kev siv, ultrasonic flow meter transducer yuav tsum tau nruab rau hauv cov kav dej ncaj nraim ntawm 10D, cov yeeb nkab ncaj nraim ntawm 5D txoj hauj lwm, rau cov dej ntws ntws ntawm cov twj, li qub thiab lwm yam khoom siv thaum qhov ntev ntawm qhov ncaj. cov yeeb nkab seem, qhov yuav tsum tau ntawm "kev ncua deb ntawm kev kub ntxhov, kev co, qhov chaw kub, suab nrov thiab qhov hluav taws xob kom deb li deb tau".Yog hais tias muaj cov twj tso kua mis, li qub thiab lwm yam khoom siv upstream ntawm lub installation txoj hauj lwm ntawm ultrasonic flow meter transducer, cov yeeb nkab ncaj seem yuav tsum muaj ntau tshaj 30D.Yog li ntawd, qhov ntev ntawm txoj kab ncaj nraim yog qhov tseem ceeb los xyuas kom meej qhov tseeb ntawm qhov ntsuas.
2. Kev cuam tshuam ntawm cov khoom siv hauv cov kav dej ntawm qhov ntsuas qhov tseeb ntawm ultrasonic flowmeter.Qhov tseeb ntawm cov kav dej parameter teeb tsa yog ze ze rau qhov ntsuas qhov tseeb.Yog tias qhov kev teeb tsa ntawm cov khoom siv thiab qhov loj ntawm cov kav dej tsis sib haum nrog qhov tseeb, nws yuav ua rau muaj qhov yuam kev ntawm qhov theoretical pipeline flow cross-sectional area thiab qhov tseeb ntws hla-sectional cheeb tsam, ua rau qhov tsis raug qhov kawg.Tsis tas li ntawd, qhov sib txawv ntawm qhov sib txawv ntawm cov ultrasonic flow meter transducer yog qhov tshwm sim ntawm kev suav ntawm ntau yam tsis xws li kua (suab nrov, dynamic viscosity), pipeline (khoom siv thiab loj), thiab cov txheej txheem installation ntawm transducer, thiab lwm yam. thiab qhov kev ncua deb ntawm lub transducer deviates, uas tseem yuav ua rau kev ntsuas loj.Ntawm lawv, kev teeb tsa thiab kev teeb tsa kev ncua deb ntawm lub puab warp ntawm lub raj xa dej muaj qhov cuam tshuam rau qhov ntsuas qhov tseeb.Raws li cov ntaub ntawv cuam tshuam, yog tias qhov kev ua yuam kev hauv qhov ntev ntawm cov kav dej yog ± 1%, nws yuav ua rau ± 3% ntws yuam kev;Yog hais tias qhov kev ncua deb ntawm qhov yuam kev yog ± 1 hli, qhov yuam kev khiav yuav nyob hauv ± 1%.Nws tuaj yeem pom tau tias tsuas yog nrog qhov tseeb qhov chaw ntawm cov kav dej tsis muaj peev xwm tuaj yeem ntsia tau ultrasonic flowmeter kom raug thiab qhov cuam tshuam ntawm cov kav dej tsis zoo ntawm kev ntsuas qhov tseeb tuaj yeem txo qis.
3, kev cuam tshuam ntawm ultrasonic flow meter transducer installation txoj hauj lwm ntawm kev ntsuas qhov tseeb.Muaj ob txoj hauv kev rau nruab lub transducer: hom kev xav thiab hom ncaj qha.Yog hais tias kev siv ncaj qha mounting suab ceev mus los yog luv luv, lub teeb liab lub zog tuaj yeem txhim kho.
4. Kev cuam tshuam ntawm coupling tus neeg sawv cev ntawm kev ntsuas qhov tseeb.Txhawm rau kom muaj kev sib cuag nrog lub raj xa dej, thaum txhim kho lub transducer, ib txheej ntawm tus neeg sawv cev sib txuas yuav tsum tau muab sib npaug ntawm cov kav dej, thiab qhov dav dav yog (2mm - 3mm).Cov npuas thiab granules nyob rau hauv lub coupler raug tshem tawm kom lub emitter nto ntawm lub transducer yog nruj nreem txuas rau lub raj phab ntsa.Flowmeters rau ntsuas cov dej ntws feem ntau yog ntsia hauv Wells, thiab ib puag ncig yog ntub thiab qee zaum dej nyab.Yog tias siv tus neeg sawv cev sib txuas dav dav, nws yuav ua tsis tiav hauv lub sijhawm luv luv, cuam tshuam rau qhov ntsuas qhov tseeb.Yog li ntawd, tshwj xeeb waterproof coupler yuav tsum tau xaiv, thiab lub coupler yuav tsum tau siv nyob rau hauv lub sij hawm zoo, feem ntau 18 lub hlis.Txhawm rau kom ntsuas qhov tseeb, lub transducer yuav tsum tau rov nruab dua txhua 18 lub hlis thiab yuav tsum tau hloov pauv.
Post lub sij hawm: Sep-04-2023