Izici ze-Open – Channel Flowmeter ku-Weir noma ku-Flume

1. Ukulinganisa Ukugeleza Okunembile​

• Ethangini le-weir, ama-flowmeter e-open-channel aklanyelwe ukukala izinga lokugeleza kwamanzi ngokunemba okuphezulu. Avame ukusebenzisa isimiso sokulinganisa ikhanda (izinga lamanzi) ngaphezu kwesakhiwo esithile se-weir noma i-flume. Isibonelo, ku-V-notch weir, ubudlelwano phakathi kwezinga lamanzi kanye nezinga lokugeleza bulandela ifomula yezibalo echazwe kahle. Ngokulinganisa izinga lamanzi ngokunembile, i-flowmeter ingabala izinga lokugeleza ngokunembile. Ukunemba kungaba ngaphakathi kwamaphuzu ambalwa amaphesenti, okubalulekile ekusetshenzisweni njengokuphathwa kwemithombo yamanzi, lapho idatha yokugeleza enembile iyadingeka khona ukuze kwabelwe futhi kuqashwe kahle amanzi.​

2. Ukufaneleka Kwezinhlobo Ezihlukene Ze-Weir kanye ne-Flume​

• Ama-flowmeter eziteshi ezivulekile ayakwazi ukuzivumelanisa nezinhlobo ezahlukene zama-weir nama-flume. Kungakhathaliseki ukuthi i-weir engunxande, i-weir engunxantathu, noma i-Parshall flume, i-flowmeter ingalungiselelwa ukusebenza kahle. Izinhlobo ezahlukene ze-weir kanye ne-flume zinezimpawu zazo ze-hydraulic, kanti i-flowmeter yeziteshi ezivulekile ingalinganiswa futhi ihlelwe ukuze ilandise lo mehluko. Isibonelo, i-Parshall flume ivame ukusetshenziswa ezimweni lapho izinga lokugeleza lidinga ukukalwa ebangeni elibanzi. I-flowmeter yeziteshi ezivulekile ingalungiswa ukuze ilinganise ngokunembile ukugeleza nge-Parshall flume, kungakhathaliseki ukuthi ukugeleza kusezingeni eliphansi noma eliphezulu.​

3. Ukufakwa Okungaphazamisi​

• Ukufakwa kwama-flowmeter avulekile emathangini e-weir ngokuvamile akuphazamiseki. Iningi lala ma-flowmeter lisebenzisa izinzwa ezifakwe ngaphezulu noma eduze kwe-weir noma i-flume, ngaphandle kwesidingo sokuphazamisa ukugeleza kwamanzi. Isibonelo, izinzwa zezinga le-ultrasonic zivame ukusetshenziswa. Zifakwa ngaphezu kobuso bamanzi ethangini le-weir futhi zilinganisa ibanga eliya ebusweni bamanzi. Le ndlela yokufaka engaphazamiseki inciphisa umthelela ekugelezeni okuvamile kwamanzi ethangini le-weir, futhi yenza lula inqubo yokufaka. Asikho isidingo sokumisa ukugeleza kwamanzi ngesikhathi sokufakwa, okuyinto elula kakhulu ezinhlelweni zokusebenza eziqhubekayo njengezitshalo zokuhlanza amanzi amdaka.​

4. Ukuthembeka Ezindaweni Ezinzima​

• Amathangi e-Weir avame ukutholakala ezindaweni zangaphandle noma zezimboni lapho izimo zingaba nzima khona. Ama-flowmeter eziteshi ezivulekile aklanyelwe ukuthembeka ezindaweni ezinjalo. Ngokuvamile enziwe ngezinto eziqinile ezingamelana nokuchayeka emanzini, umswakama, kanye nokushintshashintsha kwezinga lokushisa. Ngaphezu kwalokho, izinzwa ezisetshenziswa kula ma-flowmeter zivame ukuvikelwa ekuphazamisekeni kwezinto zangaphandle njengezinkambu ze-electromagnetic. Isibonelo, esitshalweni sokwelapha amanzi amdaka, lapho kungase kube nemishini eminingi kagesi esebenza eduze, i-flowmeter yeziteshi ezivulekile isengasebenza ngokuzinzile nangokunembile ukugeleza kwamanzi amdaka ethangini le-weir.​

5. Ukuqapha Okukude Nokudluliswa Kwedatha​

• Ama-flowmeter eziteshi ezivulekile zanamuhla emathangini emisele ahlonyiswe ngekhono lokuqapha kude kanye nokudlulisa idatha. Angaxhunywa ohlelweni lokulawula oluphakathi ngezindlela zokuxhumana ezinezintambo noma ezingenantambo. Lokhu kuvumela opharetha ukuthi baqaphe izinga lokugeleza ethangini lemisele ngesikhathi sangempela besuka endaweni ekude. Isibonelo, ohlelweni lokunisela olukhulu olunamathangi amaningi emisele asatshalaliswa endaweni ebanzi, idatha yokugeleza evela ku-flowmeter ngayinye yemisele evulekile ingadluliselwa egumbini lokulawula eliphakathi. Opharetha bangabe sebehlaziya idatha, benze izinguquko ohlelweni lokusabalalisa amanzi njengoba kudingeka, futhi baqinisekise ukusetshenziswa kwamanzi okuphumelelayo.