1. Ithonya lengxenye yepayipi eqondile neyaphansi yomfula ekulinganisweni kokulinganisa kwe-ultrasonic flowmeter. I-calibration coefficient K iwumsebenzi wenombolo kaReynolds. Lapho ijubane lokugeleza lingalingani kusukela ekugelezeni kwe-laminar kuya ekugelezeni okuguquguqukayo, i-calibration coefficient K izoshintsha kakhulu, okuholela ekwehleni kokunemba kokulinganisa. Ngokwezidingo zokusebenzisa, i-transducer yemitha yokugeleza ye-ultrasonic kufanele ifakwe engxenyeni yepayipi eqondile ephezulu ye-10D, ingxenye yepayipi eqondile engezansi yesikhundla se-5D, ukuze kube khona amaphampu, amavalvu neminye imishini ephezulu lapho ubude bengxenye yepayipi eqondile, izidingo "zebanga ukusuka ekuguqukeni, ukudlidliza, umthombo wokushisa, umthombo womsindo kanye nomthombo we-ray ngangokunokwenzeka". Uma kukhona amaphampu, amavalvu neminye imishini ephezulu yesikhundla sokufaka se-ultrasonic flow meter transducer, ingxenye yepayipi eqondile iyadingeka ibe ngaphezu kwama-30D. Ngakho-ke, ubude bengxenye yepayipi eqondile yisici esiyinhloko sokuqinisekisa ukunemba kokulinganisa.
2. Ithonya lemishini yepharamitha yepayipi ekulinganisweni kokulinganisa kwe-ultrasonic flowmeter. Ukunemba kokusetha ipharamitha yepayipi kuhlobene kakhulu nokunemba kokulinganisa. Uma ukusetha kwezinto nosayizi wepayipi kungahambisani nokwangempela, kuzobangela iphutha phakathi kwendawo ye-cross-section yokugeleza kwepayipi okunengqondo nendawo ye-cross-section yokugeleza kwangempela, okuholela emiphumeleni yokugcina enganembile. Ngaphezu kwalokho, isikhala sokukhishwa phakathi kwe-ultrasonic flow meter transducer siwumphumela wokubala okuphelele kwamapharamitha ahlukahlukene njengoketshezi (ijubane lomsindo, i-dynamic viscosity), ipayipi (izinto nosayizi), kanye nendlela yokufaka ye-transducer, njll., kanye nebanga lokufaka le-transducer liyaphambuka, okuzophinde kubangele amaphutha amakhulu okulinganisa. Phakathi kwazo, ukusetha kanye nebanga lokufaka le-warp yangaphakathi yepayipi kunethonya elibonakalayo ekulinganisweni kokulinganisa. Ngokusho kwedatha efanele, uma iphutha langaphakathi le-longitude yepayipi lingu-±1%, lizobangela cishe iphutha lokugeleza elingu-±3%; Uma iphutha lebanga lokufaka lingu-±1mm, iphutha lokugeleza lizoba ngaphakathi kuka-±1%. Kungabonakala ukuthi kuphela ngokusetha okulungile kwamapharamitha epayipi lapho i-flowmeter ye-ultrasonic ingafakwa khona ngokunembile futhi ithonya lamapharamitha epayipi ekunembeni kokulinganisa lingancishiswa.
3, ithonya lesikhundla sokufakwa kwe-transducer yemitha yokugeleza kwe-ultrasonic ekunembeni kokulinganisa. Kunezindlela ezimbili zokufaka i-transducer: uhlobo lokubonisa kanye nohlobo oluqondile. Uma ukusetshenziswa kokuhamba kwesivinini somsindo wokufaka ngqo kufushane, amandla esignali angathuthukiswa.
4. Ithonya le-coupling agent ekunembeni kokulinganisa. Ukuze kuqinisekiswe ukuthintana okugcwele nepayipi, lapho kufakwa i-transducer, ungqimba lwe-coupling agent ludinga ukumbozwa ngokulinganayo ebusweni bepayipi, futhi ubukhulu obujwayelekile buyi-(2mm - 3mm). Amabhamuza nama-granule ku-coupler asuswa ukuze ubuso be-emitter be-transducer bunamathele ngokuqinile odongeni lwepayipi. Ama-flowmeter okulinganisa amanzi ajikelezayo afakwa kakhulu eWells, futhi indawo imanzi futhi ngezinye izikhathi igcwele amanzi. Uma kusetshenziswa i-coupling agent ejwayelekile, izohluleka ngesikhathi esifushane, okuthinta ukunemba kokulinganisa. Ngakho-ke, i-coupler ekhethekile engangeni manzi kumele ikhethwe, futhi i-coupler kufanele isetshenziswe phakathi nesikhathi esisebenzayo, ngokuvamile izinyanga ezingu-18. Ukuqinisekisa ukunemba kokulinganisa, i-transducer kufanele ifakwe kabusha njalo ezinyangeni ezingu-18 futhi i-coupler kufanele ishintshwe.
Isikhathi sokuthunyelwe: Septhemba-04-2023