Ziziphi iintlobo ezimbini ze-ultrasonic flow meter?

Iimitha zokuhamba ze-ultrasonic zahlulwe zibe ziintlobo ezimbini eziphambili ngokusekelwe kwimigaqo yazo yokusebenza:

1. Iimitha zokuhamba ze-Ultrasonic zexesha lokuThutha
• Indlela Ezisebenza Ngayo:
• Linganisa umahluko kwixesha lokuhamba kwemiqondiso ye-ultrasound phakathi kwee-transducers ezimbini:
• Ezantsi (ngokuhamba komsinga): Isignali ihamba ngokukhawuleza.
• Phezulu (ngokuchasene nokuhamba kwamanzi): Isignali ithatha ixesha elide.
• Umahluko kumaxesha okuhamba (\Delta t) uhambelana nesantya sokuhamba kolwelo.
• Ezona mpawu:
• Eyona ilungileyo kulwelo olucocekileyo okanye oluphantse lucoceke (umz., amanzi, iioyile, okanye ulwelo olungenazingqiniba zininzi).
• Ichaneke kakhulu (±0.5% ukuya ku-±2.0% phantsi kweemeko ezifanelekileyo).
• Ayingenisi ntsholongwane kwaye isetyenziswa kakhulu kumashishini ahlukeneyo.
• Iingenelo:
• Isebenza kakuhle ngolwelo olufana nolwelo.
• Ifanelekile kwiindidi ezahlukeneyo zobukhulu beepayipi kunye nezinto zokwakha.
• Kukho ukufakelwa okuphathekayo okanye okusisigxina.
• Imida:
• Ukuchaneka kuncipha xa ulwelo lunezinga eliphezulu lamasuntswana, amaqamza, okanye izinto ezingcolisayo.

2. Iimitha zokuhamba zeDoppler Ultrasonic
• Indlela Ezisebenza Ngayo:
• Linganisa ukutshintsha kwemvamisa (isiphumo seDoppler) yemiqondiso ye-ultrasound ebonisa amasuntswana okanye amaqamza ngaphakathi kolwelo.
• Umahluko phakathi kwemiqondiso edluliselweyo nebonakalisiweyo usetyenziselwa ukubala isantya sokuhamba komoya.
• Ezona mpawu:
• Yenzelwe ulwelo olunamasuntswana okanye amaqamza axhonyiweyo (umz., amanzi amdaka, amaqhekeza, okanye ulwelo olungcolileyo).
• Ukuchaneka kudla ngokuba ngaphantsi kuneemitha zexesha lokuhamba (±1.0% ukuya ku-±5.0%).
• Iingenelo:
• Ingalinganisa ukuhamba kwamanzi kwi-opaque okanye kwi-multiphase fluids.
• Ifanelekile ukusetyenziswa kwimizi-mveliso nakumanzi amdaka.
• Imida:
• Ifuna ubuncinci boxinzelelo lwee-particles okanye amaqamza (ngesiqhelo >100 ppm).
• Ayifanelekanga kwiindawo ezicocekileyo zolwelo.

Ezi ntlobo zimbini zilungele ukusetyenziswa ngeendlela ezahlukeneyo, apho iimitha zexesha lokuhamba zigqwesa ngokuchanekileyo kulwelo olucocekileyo kwaye iimitha zeDoppler zilungele ukuhamba kwamanzi okunzima okanye axutyiweyo.