Muchina we ultrasonic flowmeter we transit-time difference unoyerwa uchishandisa A pair of transducers (sensors A na B mumufananidzo uri pazasi), izvo zvinotumira nekugamuchira mafungu e ultrasonic zvichichinjana (kana panguva imwe chete). Chiratidzo chinofamba nekukurumidza kumusoro kupfuura kumusoro mumvura, uye musiyano wenguva izero kana mvura ichiripo. Saka, chero bedzi nguva yekupararira kwe downstream ne countercurrent ichiyerwa, musiyano we △t unogona kuwanikwa. Zvadaro, zvichienderana nehukama huripo pakati pe △ T ne velocity V, avhareji ye velocity ye medium inogona kuyerwa zvisina kunanga, uye volume flow Q inogona kuverengerwa zvichienderana nenzvimbo ye cross-sectional.
V = K * △ t
Q=S×V, apo K iri chinhu chisingachinji uye S iri nzvimbo inoyambuka miganhu iri mukati mepombi.
Chiyero che ultrasonic che transit-time chakakodzera kuyera mvura yakachena mupombi yakazara yakavharwa, uye huwandu hwezvinhu zvakasungirirwa kana mabubbles mumvura yakayerwa husingasviki 5.0%. Iyi mhando ye flowmeter inogona kushandiswa zvakanyanya mumvura dziri pasi.
1) Mvura yepombi, mvura inotenderera, mvura inotonhorera, mvura inodziya, nezvimwewo;
2) Mvura isina kubikwa, mvura yegungwa, tsvina yakajairika, kana tsvina yechipiri;
3) Chinwiwa, doro, doro, mushonga wemvura, nezvimwewo;
4) Zvinonyungudutsa zvemakemikari, mukaka, yogati, nezvimwewo;
5) peturu, parafini, dhiziri, nezvimwe zvigadzirwa zvemafuta;
6) Chiteshi chemagetsi (chenyukireya, chekupisa, uye chehydraulic), kupisa, kupisa, kupisa;
7) Kuunganidzwa kwemvura inoyerera, kuonekwa kwekubuda kwemvura; Kutarisirwa kwehuwandu hwemvura inoyerera, kutarisirwa kwehuwandu hwekupisa, kutariswa kwehurongwa hwe network;
8) Kugadzira simbi, migodhi, peturu, indasitiri yemakemikari;
9) Kutarisa kuchengetedza simba uye kuchengetedza mvura;
10) Chikafu nemishonga;
11) Kuyera kupisa uye kuenzana kwekupisa;
12) Kuongororwa kwemuchina wekuyerera kwemvura panzvimbo, kuongororwa kwedata, nezvimwewo.
Nguva yekutumira: Nyamavhuvhu-20-2021