Kwindawo yeumlinganiselo wolwelo, ii-electromagnetic flowmeters kunye nee-ultrasonic flowmeters zihlukile njengezixhobo ezimbini ezisetyenziswa kakhulu. Nganye ineempawu ezahlukileyo, kwaye ukuqonda umahluko wazo kubalulekile ekwenzeni ukhetho olufanelekileyo kwizicelo ezahlukeneyo zoshishino.
1. Imigaqo Yokusebenza
Ii-flowmeters ze-electromagnetic
Ii-electromagnetic flowmeters zisebenza ngokusekelwe kumthetho kaFaraday wokungenisa i-electromagnetic. Xa ulwelo oluqhubayo luhamba nge-magnetic field eyenziwe yimitha, i-voltage ifakwa kulwelo lonke. Le voltage ibangelwayo ihambelana nesantya solwelo. Ngokwezibalo, i-voltage ebangelwayo u-E inikwa yi-E=BDV, apho u-B ingamandla e-magnetic field, u-D bububanzi betyhubhu yokulinganisa, kwaye u-V yisantya esiphakathi solwelo. Lo mgaqo uvumela ukulinganiswa ngokuchanekileyo kolwelo oluqhubayo.
Ii-Ultrasonic Flowmeters
Ii-ultrasonic flowmeters zisebenzisa amaza esandi ukulinganisa isantya solwelo. Kukho iintlobo ezimbini eziphambili: i-transit - ixesha kunye ne-Doppler. I-Transit - ixesha ii-ultrasonic flowmeters zilinganisa umahluko kwixesha elithathwayo ukuze imiqondiso ye-ultrasonic ihambe phezulu nasezantsi kulwelo. Isantya sokuhamba sibalwa ukusuka kulo mahluko wexesha. Ii-Doppler ultrasonic flowmeters, kwelinye icala, zixhomekeke kwisiphumo se-Doppler. Xa amaza e-ultrasonic ebonakaliswa kwiisuntswana okanye amaqamza kulwelo, isantya samaza abonakalisiweyo siyatshintsha. Isantya sokuhamba simiselwa kolu tshintsho lwesantya.
2. Ukuchaneka koMlinganiselo
Ii-flowmeters ze-electromagnetic
Ii-electromagnetic flowmeters zibonelela ngokuchaneka okuphezulu, ngesiqhelo ngaphakathi kwe-±0.2% ukuya kwi-±1% yexabiso elilinganisiweyo. Zibonelela ngokusebenza okulinganayo kumanqanaba amaninzi okuhamba kwamanzi, nto leyo ezenza zifaneleke ukusetyenziswa apho ukulinganisa ngokuchanekileyo kubalulekile, njengakwimizi-mveliso yamayeza kunye neekhemikhali.
Ii-Ultrasonic Flowmeters
Ukuchaneka kwee-flowmeters ze-ultrasonic kuyahluka ngokuxhomekeke kuhlobo. Ii-flowmeters ze-ultrasonic zexesha lokuhamba zinokufikelela ukuchaneka kwe-±0.5% ukuya kwi-±2%, ngelixa ii-flowmeters ze-ultrasonic ze-Doppler zihlala zichanekile kancinci, malunga ne-±2% ukuya kwi-±5%. Izinto ezinje ngokusasazwa kwamasuntswana okanye amaqamza kulwelo zinokuchaphazela kakhulu ukuchaneka kwee-flowmeters ze-Doppler.
3. Ulwelo oluSebenzayo
Ii-flowmeters ze-electromagnetic
Ezi flowmeters zilungele ulwelo oluqhuba umbane kuphela. Ulwelo kufuneka lube nombane ophantsi kakhulu, odla ngokuba ngaphezulu kwe-5 μS/cm. Zisetyenziswa kakhulu ukulinganisa ukuhamba kwamanzi, amanzi amdaka, kunye nezisombululo ezahlukeneyo zeekhemikhali.
Ii-Ultrasonic Flowmeters
Ii-ultrasonic flowmeters zingasetyenziselwa zombini ulwelo olucocekileyo nolungcolileyo. Ii-transit-time flowmeters zisebenza kakuhle nolwelo olucocekileyo okanye olungcoliswe kancinci, ngelixa ii-Doppler flowmeters zilungele ngakumbi ulwelo olunenani elikhulu lamasuntswana axhonyiweyo okanye amaqamza, afana ne-slurries kunye ne-sewage.
4. Iimfuno zoFakelo
Ii-flowmeters ze-electromagnetic
Ii-electromagnetic flowmeters zifuna icandelo lepayipi elithe tye elivela phezulu nasezantsi ukuqinisekisa ukuhamba ngokulinganayo. Ngokubanzi, kucetyiswa ukuba kubekho ipayipi elithe tye elivela phezulu elinobubanzi obuziimitha ezi-5 ukuya kwezi-10 kunye nobude obuvela phantsi obuziimitha ezi-2 ukuya kwezi-5 zepayipi. Zikwafuneka zifakwe kwindawo apho ulwelo luzaliswe ngokupheleleyo kumbhobho.
Ii-Ultrasonic Flowmeters
Ukufakelwa kwee-flowmeters ze-ultrasonic kuguquguquka ngakumbi. Ii-clamp - kwi-flowmeters ze-ultrasonic zinokufakwa ngaphandle ngaphandle kokusika umbhobho, nto leyo enciphisa ixesha kunye neendleko zokufakela. Nangona kunjalo, ukufakelwa ngokuchanekileyo kusafuna ukulungelelaniswa okufanelekileyo kunye nokuqwalaselwa kwezinto ezinje ngobukhulu bodonga lombhobho kunye nezinto.
5. Ixabiso
Ii-flowmeters ze-electromagnetic
Ii-electromagnetic flowmeters zidla ngokuba zibiza kakhulu ekuqaleni ngenxa yoyilo lwazo oluntsonkothileyo kunye nolwakhiwo lwazo. Nangona kunjalo, ukuthembeka kwazo kunye nokuchaneka kwazo kwexesha elide kunokubangela iindleko eziphantsi xa kusenziwa apho ukulinganisa ngokuchanekileyo kubalulekile.
Ii-Ultrasonic Flowmeters
Ii-ultrasonic flowmeters, ingakumbi ii-clamp - kwiimodeli, zihlala zibiza kakhulu xa kujongwa utyalo-mali lokuqala. Zilukhetho olufanelekileyo kwizicelo apho iimfuno zokuchaneka zingekho phezulu kakhulu okanye apho ukulula kokufakela kuyinto ephambili.
Ukuqukumbela, ii-flowmeters ze-electromagnetic kunyeii-flowmeters ze-ultrasonicnganye inezibonelelo zayo kunye nemida yayo. Ngokuqwalasela ngononophelo izinto ezifana nemigaqo yokusebenza, ukuchaneka komlinganiselo, ulwelo olufanelekileyo, iimfuno zokufakela, kunye neendleko, iinjineli kunye nabaqhubi banokukhetha eyona ifanelekileyo.i-flowmeterngezicelo zabo ezithile.
Ixesha leposi: Epreli-08-2025