Ama-flowmeter eziteshi ezivulekilebadlala indima ebalulekile ekusetshenzisweni kwesimanjeizinhlelo zokuphatha, okuthola ukusetshenziswa okubanzi kokubili kumapayipi kanye neziteshi. Lawa mamitha aklanyelwe ukukala izinga lokugeleza koketshezi emifuleni evulekile lapho ubuso boketshezi buvezwa khona emoyeni, okunikeza izinzuzo eziyingqayizivele ezenza zibe yinto ebalulekile ezindaweni ezahlukene zezimboni, ezemvelo kanye nezomasipala.
Izimiso Zokusebenza Nezinhlobo
Ama-flowmeter eziteshi ezivulekile asebenza ngokusekelwe ezimisweni ezahlukene zomzimba. Uhlobo olulodwa oluvamile i-flowmeter esekelwe ku-weir. Ama-Weir ayizakhiwo ezibekwe ngaphesheya kwesiteshi, futhi njengoba amanzi egeleza phezu kwawo, ukuphakama kwamanzi angenhla kwe-weir kulinganiswa. Ngokusebenzisa amafomula e-hydraulic asunguliwe, izinga lokugeleza lingabalwa. Isibonelo, i-weir engunxande inobuhlobo obuthile phakathi kwekhanda lamanzi (ukuphakama kwamanzi ngaphezu kwe-weir crest) kanye nezinga lokugeleza, okuvumela ukulinganiswa kokugeleza okunembile.
Olunye uhlobo i-flowmeter esekelwe ku-flume. Ama-flume ayizithiyo zesiteshi eziklanywe ngokucophelela ezidala iphethini ethile yokugeleza. Ama-Venturi flume, isibonelo, anciphisa isiteshi ngesimo esithile, okwenza ijubane lamanzi lande futhi izinga lamanzi lishintshe ngendlela ebikezelwayo. Ama-sensor abekwe ezindaweni ezithile ku-flume alinganisa amapharamitha afana nokujula kwamanzi kanye nejubane, asetshenziswa ukunquma izinga lokugeleza.
Ama-flowmeter e-Doppler ultrasonic open-channel nawo asetshenziswa kabanzi. Asebenza ngokukhipha amagagasi e-ultrasonic ku-fluid egelezayo. Njengoba izinhlayiya ku-fluid zihamba, zibonisa amagagasi e-ultrasonic, futhi ushintsho ku-frequency yamagagasi ahlaziyiwe (i-Doppler shift) luyalinganiswa. Lokhu kushintsha kuhlobene nejubane loketshezi, futhi kuhlanganiswe nendawo enqamula isiteshi, izinga lokugeleza lingabalwa.
Izicelo kumapayipi
Ezinhlelweni zamapayipi,ama-flowmeter eziteshi ezivulekilezivame ukusetshenziswa ezimweni lapho ipayipi liphuma khona liye emgudwini ovulekile noma lapho kunesidingo sokulinganisa izinga lokugeleza ngaphambi kokuba uketshezi lungene enkambisweni yokwelapha. Isibonelo, ezitshalweni zokwelapha amanzi amdaka, amapayipi athwala indle eluhlaza evela ezinhlelweni zokuqoqa. Ama-flowmeter avulekile afakwe emnyango wezindawo zokwelapha asiza abaqhubi ukuthi banqume ngokunembile inani lendle engena esitshalweni. Lolu lwazi lubalulekile ekulungiseni umthamo wamakhemikhali okwelapha, ukuhlela ukususwa kodaka, kanye nokuqinisekisa ukusebenza kahle kwenqubo yokwelapha.
Emapayipini ezimboni, lapho uketshezi ludinga ukudluliselwa kusuka ohlelweni lwepayipi oluvaliwe luye endaweni yokugcina noma yokucubungula evulekile, ama-flowmeter eziteshi ezivulekile anganikeza idatha yesilinganiso sokugeleza ngesikhathi sangempela. Lokhu kuwusizo ikakhulukazi ezimbonini ezifana nokudla neziphuzo, lapho ukulawulwa okunembile kokugeleza koketshezi kuyadingeka ukuze kulondolozwe ikhwalithi yomkhiqizo kanye nokuvumelana. Isibonelo, ngesikhathi senqubo yokugcwalisa imikhiqizo yoketshezi ezitsheni ezivulekile noma emathangini, i-flowmeter yeziteshi ezivulekile ingaqapha futhi ilawule izinga lokugeleza ukuze ivimbele ukugcwalisa ngokweqile noma ukugcwalisa okungaphansi.
Izinhlelo zokusebenza kuziteshi
Eziteshini zemvelo nezenziwe ngabantu, ama-flowmeter eziteshi ezivulekile abalulekileukuphathwa kwemithombo yamanzi, ukulawulwa kwezikhukhula, kanye nokuqapha imvelo. Ezinhlelweni zemifula, ama-flowmeter afakwa ezindaweni eziqakathekile ukuze kulinganiswe izinga lokugeleza komfula. Le datha ibalulekile ekubikezeleni izikhukhula. Ngokuqhubeka nokuqapha ukugeleza komfula, iziphathimandla zingakhipha izixwayiso ngesikhathi sezikhukhula, zihlele izindlela zokuphuma, futhi zithathe izinyathelo zokuvimbela ukuvikela izimpilo kanye nempahla.
Eziteshini zokunisela, ama-flowmeter avulekile asiza abalimi ukuphatha ukusatshalaliswa kwamanzi ngempumelelo. Ngokulinganisa ngokunembile izinga lokugeleza kwamanzi eziteshini, abalimi bangaqinisekisa ukuthi insimu ngayinye ithola inani elifanele lamanzi, okwenza ngcono ukukhula kwezitshalo ngenkathi kulondolozwa imithombo yamanzi. Lokhu kubaluleke kakhulu ezindaweni lapho amanzi entuleka khona.
Ngaphezu kwalokho, ekuqapheni imvelo, ama-flowmeter avulekile asetshenziswa ukukala ukugeleza kwamanzi emvula. Ukuqonda umthamo kanye nesivinini sokugeleza kwamanzi emvula kusiza ekuhloleni umthelela ekhwalithini yamanzi, kanye nasekuklameni izinhlelo zokuphatha amanzi emvula ezisebenzayo zokunciphisa ukungcola nokuvimbela izikhukhula zasemadolobheni.
Izinzuzo kanye nezinselele
Ukusetshenziswa kweama-flowmeter eziteshi ezivulekilekumapayipi kanye neziteshi kunikeza izinzuzo eziningana. Angaphatha amazinga ahlukahlukene okugeleza, kusukela ekugelezeni okuphansi kakhulu kuya kokuphezulu, okwenza afaneleke ukusetshenziswa okuhlukahlukene. Ama-flowmeter amaningi aneziteshi ezivulekile adinga ukulungiswa okuncane uma kuqhathaniswa namanye ama-flowmeter angaphakathi kwepayipi, ikakhulukazi lawo anezingxenye ezihambayo. Kulula futhi ukuwafaka, ikakhulukazi eziteshini ezikhona noma ezindaweni zokuphuma kwamapayipi.
Kodwa-ke, kunezinselele futhi. Ukunemba kungathinteka yizici ezifana nokushintsha kwezici zoketshezi (isb., ukugcwala kwenhlabathi emanzini), ukufakwa okungafanele, kanye nokwehluka kwejiyometri yesiteshi. Kwezinye izimo, izici zangaphandle njengokuqongelela udoti esiteshini zingaphazamisa ukulinganiswa. Ngaphezu kwalokho, ukulinganiswa kwama-flowmeter eziteshi ezivulekile kungaba yinkimbinkimbi kakhulu uma kuqhathaniswa nezinye izinhlobo zama-flowmeter, njengoba kuvame ukuhilela ukucabangela izimo ze-hydraulic kanye nomklamo othize we-weir, flume, noma i-ultrasonic sensor setting.
Ekuphetheni, ama-flowmeter eziteshi ezivulekile abe yingxenye ebalulekile yokulinganisa uketshezi emapayipini nasezindleleni. Ukusetshenziswa kwawo okuhlukahlukene, kusukela ezinqubweni zezimboni kuya ekuvikelweni kwemvelo, kugcizelela ukubaluleka kwawo kwesimanje.ukuphathwa koketsheziNaphezu kwezinselele, intuthuko eqhubekayo kwezobuchwepheshe ithuthukisa ukunemba kwayo, ukuthembeka, kanye nokulula kokusetshenziswa, okuqinisekisa ukuthi ama-flowmeter avulekile azoqhubeka nokudlala indima ebalulekile emikhakheni eyahlukene iminyaka ezayo.
Isikhathi sokuthunyelwe: Juni-05-2025