1. Umthelela wengxenye yepayipi eliqonde phezulu naphansi komfula ekunembeni kokulinganisa kwe-flowmeter ye-ultrasonic.I-coefficient yokulinganisa K iwumsebenzi wenombolo ye-Reynolds.Uma isivinini sokugeleza singalingani ukusuka ekugelezeni kwe-laminar kuye ekugelezeni okuyaluza, i-coefficient yokulinganisa K izoshintsha kakhulu, okuholela ekwehleni kokunemba kokulinganisa.Ngokwezidingo zokusetshenziswa, i-ultrasonic flow meter transducer kufanele ifakwe engxenyeni yepayipi eliqondile elikhuphukayo elingu-10D, ingxenye yepayipi eliqondile eliya phansi le-5D, ukuze kube khona amaphampu, ama-valve nezinye izinto zokusebenza lapho ubude bendawo eqondile. ingxenye yamapayipi, izimfuneko "zebanga lesiyaluyalu, ukudlidliza, umthombo wokushisa, umthombo womsindo nomthombo we-ray ngangokunokwenzeka".Uma kukhona amaphampu, ama-valve kanye nezinye izinto zokusebenza phezulu komfula wendawo yokufaka ye-ultrasonic flow meter transducer, ingxenye yepayipi eqondile iyadingeka ukuba ibe ngaphezu kwe-30D.Ngakho-ke, ubude besigaba sepayipi eqondile yisici esiyinhloko sokuqinisekisa ukunemba kokulinganisa.
2. Ithonya lemishini yepharamitha yamapayipi ekunembeni kwesilinganiso se-flowmeter ye-ultrasonic.Ukunemba kokulungiselelwa kwepharamitha yamapayipi kuhlobene eduze nokunemba kokulinganisa.Uma ukulungiselelwa kwempahla nosayizi wepayipi kungqubuzana nokwangempela, kuzodala iphutha phakathi kwendawo enqamulayo yokugeleza kwamapayipi okucatshangelwayo kanye nendawo enqamulayo yangempela, okuholela emiphumeleni yokugcina enganembile.Ngaphezu kwalokho, isikhala sokukhishwa phakathi kwe-ultrasonic flow meter transducer siwumphumela wokubala okuphelele kwemingcele ehlukahlukene njengoketshezi (isivinini somsindo, i-viscosity eguquguqukayo), ipayipi (impahla nosayizi), kanye nendlela yokufaka i-transducer, njll., futhi ibanga lokufakwa kwe-transducer liyachezuka, okuzophinde kubangele amaphutha amakhulu okulinganisa.Phakathi kwazo, ukusethwa kanye nebanga lokufakwa kwe-warp yangaphakathi yepayipi kunethonya elivelele ekunembeni kokulinganisa.Ngokusho kwedatha efanelekile, uma iphutha lelongitudi langaphakathi lepayipi lingu-±1%, lizodala cishe iphutha lokugeleza elingu-±3%;Uma iphutha lebanga lokufaka lingu-±1mm, iphutha lokugeleza lizoba phakathi kuka-±1%.Kungabonakala ukuthi kuphela ngokumiswa okufanele kwemingcele yepayipi lapho i-flowmeter ye-ultrasonic ingafakwa ngokunembile futhi nomthelela wemingcele yepayipi ekunembeni kwesilinganiso kungancishiswa.
3, umthelela we-ultrasonic flow meter imitha yokufaka i-transducer isikhundla ngokunemba kokulinganisa.Kunezindlela ezimbili zokufaka i-transducer: uhlobo lokubonisa kanye nohlobo oluqondile.Uma ukusetshenziswa kohambo lwesivinini somsindo okhuphukayo kukufushane, amandla esiginali angathuthukiswa.
4. Umthelela we-ejenti yokuxhuma ekunembeni kwesilinganiso.Ukuze kuqinisekiswe ukuthintana okugcwele nepayipi, lapho ufaka i-transducer, ungqimba lwe-ejenti yokuxhuma ludinga ukumbozwa ngokulinganayo ebusweni bepayipi, futhi ubukhulu obujwayelekile bu (2mm - 3mm).Amabhamuza nama-granules ku-coupupr ayasuswa ukuze i-emitter surface ye-transducer inamathele ngokuqinile odongeni lweshubhu.Ama-Flowmeters okulinganisa amanzi ajikelezayo afakwa kakhulu e-Wells, futhi indawo ezungezile inomswakama futhi ngezinye izikhathi igcwele amanzi.Uma i-ejenti yokuhlanganisa evamile isetshenziswa, izohluleka ngesikhathi esifushane, ithinte ukunemba kokulinganisa.Ngakho-ke, i-coupler ekhethekile engangeni manzi kufanele ikhethwe, futhi i-coupler kufanele isetshenziswe phakathi nesikhathi esisebenzayo, ngokuvamile esiyizinyanga eziyi-18.Ukuqinisekisa ukunemba kwesilinganiso, i-transducer kufanele ifakwe kabusha njalo ngemva kwezinyanga eziyi-18 futhi i-coupler kufanele ishintshwe.
Isikhathi sokuthumela: Sep-04-2023