Amaphutha amanje e-flowmeter ye-ultrasonic ngokuyinhloko ukuthi ububanzi bokushisa bomzimba wokugeleza olinganisiwe bunqunyelwe ukumelana kokushisa kwe-aluminium yokushintshana kwamandla e-ultrasonic kanye nezinto zokuxhumanisa phakathi kwe-transducer kanye nepayipi, futhi idatha yokuqala yesivinini sokudlulisa umsindo womzimba wokugeleza olinganisiwe emazingeni okushisa aphezulu ayiphelele. Njengamanje, iShayina ingasetshenziswa kuphela ukukala uketshezi olungaphansi kuka-200℃. Ngaphezu kwalokho, umugqa wokulinganisa we-flowmeter ye-ultrasonic uyinkimbinkimbi kakhulu kunowe-flowmeter ejwayelekile. Lokhu kungenxa yokuthi izinga lokugeleza koketshezi ekulinganisweni kwezimboni okujwayelekile livame ukuba amamitha ambalwa ngomzuzwana, futhi ijubane lokusabalala kwegagasi lomsindo kuketshezi lingaba ngu-1500m/s, futhi ushintsho ejubaneni lomsindo olulethwa ushintsho ejubaneni lokugeleza lomzimba wokugeleza olinganisiwe nalo luyi-oda eli-10-3 lobukhulu. Uma ukunemba kwesilinganiso sokugeleza kudingeka kube yi-1%, ukunemba kokulinganisa isivinini somsindo kudingeka kube yi-oda lobukhulu obuyi-10-5 ~ 10-6, ngakho-ke kumele kube nomugqa wokulinganisa ophelele ukuze ufezwe, okuyi-flowmeter ye-ultrasonic engasetshenziswa kuphela ngaphansi kwentuthuko esheshayo yobuchwepheshe besekethe ehlanganisiwe.
(1) Ububanzi bokulinganisa izinga lokushisa le-ultrasonic flowmeter abuphezulu, futhi ngokuvamile bungalinganisa uketshezi olunezinga lokushisa elingaphansi kuka-200 ° C kuphela.
(2) Ikhono elibi lokulwa nokuphazamiseka. Kulula ukuphazanyiswa umsindo we-ultrasonic oxutshwe namabhamuza, ukukala, amaphampu neminye imithombo yomsindo futhi kuthinte ukunemba kokulinganisa.
(3) Ingxenye yepayipi eqondile iyadingeka kakhulu ku-20D yokuqala kanye ne-5D yokugcina. Ngaphandle kwalokho, ukuhlakazeka kubi futhi ukunemba kokulinganisa kuphansi.
(4) Ukungaqiniseki kokufakwa kuzoletha iphutha elikhulu ekulinganisweni kokugeleza.
(5) Ukulinganiswa kwepayipi lokulinganisa kuzothinta kakhulu ukunemba kokulinganisa, okuholela emaphutheni amakhulu okulinganisa, futhi kungabikho ngisho nokuboniswa kokugeleza ezimweni ezinzima.
(6) Izinga lokuthembeka nokunemba aliphezulu (ngokuvamile cishe ku-1.5 ~ 2.5), futhi ukuphindaphindeka kubi.
(7) Impilo yesevisi emfushane (ukunemba okuvamile kungaqinisekiswa unyaka owodwa kuphela).
(8) I-Ultrasonic flowmeter iwukulinganisa ijubane loketshezi ukuze inqume ukugeleza komthamo, uketshezi kufanele lulinganise ukugeleza kwalo kobuningi, ukulinganisa kwethuluzi lokugeleza kobuningi kutholakala ngokuphindaphinda ukugeleza komthamo ngobuningi obubekwe ngokwenziwa, lapho izinga lokushisa loketshezi lishintsha, ubuningi boketshezi bushintshwa, inani lobuningi obubekwe ngokwenziwa, alikwazi ukuqinisekisa ukunemba kokugeleza kobuningi. Kuphela uma ijubane loketshezi lilinganiswa ngesikhathi esifanayo, ubuningi boketshezi buyalinganiswa, futhi izinga lokugeleza kobuningi bangempela lingatholakala ngokubala.
(9) Ukunemba kokulinganisa i-Doppler akuphezulu. Indlela ye-Doppler ifanelekela uketshezi lwe-biphase olungenawo okuqukethwe okuphezulu kakhulu okuhlukahlukene, njengendle engalashwanga, uketshezi olukhishwa efektri, uketshezi lwenqubo engcolile; Ngokuvamile akufanelekeli uketshezi oluhlanzekile kakhulu.
Isikhathi sokuthunyelwe: Disemba 18-2023