I-Parshall flume iyisakhiwo esisetshenziswa kabanzi lapho kulinganiswa ukugeleza kwamanzi eziteshini ezivulekile. Ihlinzeka ngendlela elula nenembile yokulinganisa ukugeleza eziteshini zokunisela, izinhlelo zamanzi emvula kanye nezitshalo zokuhlanza amanzi angcolile. Ukuze kuthuthukiswe ukunemba kokulinganiswa kokugeleza, ama-flowmeter eziteshi ezivulekile avame ukusetshenziswa kanye nama-flume e-Parshall.
Amamitha okugeleza kwesiteshi esivulekile aklanyelwe ngqo ukukala ukugeleza koketshezi eziteshini ezivulekile njengemifula, imifudlana kanye nemisele. Asebenzisa ubuchwepheshe obuhlukahlukene ukunquma ngokunembile ukugeleza kwethrafikhi, enikeza idatha ebalulekile yezinhlelo zokusebenza ezahlukahlukene. Kuma-flume aseParshall, amamitha okugeleza kwesiteshi esivulekile adlala indima ebalulekile ekuqinisekiseni ukulinganiswa kokugeleza okunembile nokuthembekile.
Enye yezinhlobo ezivame kakhulu zama-flowmeter eziteshi ezivulekile ezisetshenziswa kuma-Parshall flumes yi-ultrasonic flowmeter. Lolu hlobo lwe-flow meter lusebenzisa amagagasi e-ultrasonic ukukala ijubane loketshezi olugelezayo. Ngokuthumela nokwamukela ama-pulse e-ultrasonic, i-flow meter ingabala ngokunembile ukugeleza ngokusekelwe esikhathini esithathayo ukuze i-pulse ihambe phakathi kwama-transducer. Ama-flow meter e-Ultrasonic awaphazamisi futhi angafakwa kalula kuma-Parshall sinks, okwenza kube ukukhetha okuthandwayo kwezinhlelo eziningi.
Umphumela wemitha yokugeleza ye-Parshall flume open channel ngokuvamile uba ngesimo sokulinganisa ukugeleza okungaboniswa esikrinini sedijithali noma kudluliselwe ohlelweni lokuthola idatha ukuze kuhlaziywe kabanzi. Lolu lwazi lubalulekile ekuqapheni nasekuphatheni izinsiza zamanzi, ekwenzeni ngcono izinhlelo zokunisela, kanye nokuqinisekisa ukusebenza kahle kwezitshalo zokuhlanza amanzi amdaka.
Ngamafuphi, amamitha okugeleza kwesiteshi esivulekile adlala indima ebalulekile ekuthuthukiseni ukunemba nokuthembeka kwezilinganiso zokugeleza kwethangi likaParshall. Ngokusebenzisa ubuchwepheshe obuthuthukisiwe njengemitha yokugeleza ye-ultrasonic kanye ne-electromagnetic, izilinganiso zokugeleza ezinembile zingatholakala, zinikeze idatha ebalulekile yezinhlelo eziningi ezahlukene. Ukuqonda ukusebenza kwemitha yokugeleza kwesiteshi esivulekile sikaParshall kubalulekile ekuqinisekiseni ukuphathwa kahle kwemithombo yamanzi kanye nokusebenza kahle kwezinhlelo ze-hydraulic.
Isikhathi sokuthunyelwe: Mashi-28-2024