Uma kulinganiswa ukugeleza kwesiteshi esivulekile, izindlela ezimbili ezivame ukusetshenziswa yindlela yendawo yejubane kanye nendlela ye-weir kanye ne-channel. Zombili lezi zindlela zinezici nezinhlelo zokusebenza ezihlukile, futhi ukuqonda umehluko wazo kubalulekile ekukhetheni ubuchwepheshe bokulinganisa ukugeleza obufanele besimo esithile.
Isilinganiso sokugeleza kwendlela yejubane:
Indlela ye-velocity area, eyaziwa nangokuthi indlela ye-float, iyindlela esetshenziswa kabanzi yokulinganisa ukugeleza kwesiteshi esivulekile. Le ndlela ihilela ukulinganisa ijubane lamanzi ageleza ngamaphuzu ahlukene esiteshi bese kubalwa izinga lokugeleza ngokusekelwe endaweni enqamula isiteshi.
Enye yezingxenye ezibalulekile zendlela yendawo yejubane ukusetshenziswa kwemitha yokugeleza, okuyidivayisi elinganisa ijubane lokugeleza kwamanzi. Le ndlela isebenzisa izinhlobo eziningana zamamitha okugeleza, okuhlanganisa amamitha okugeleza kagesi, e-ultrasonic, kanye namamitha okugeleza omshini. Lawa madivayisi abekwa ezindaweni ezahlukene esiteshini ukuze abambe idatha yejubane, bese esetshenziselwa ukubala amazinga okugeleza.
Indlela yendawo yejubane ifanelekela ukusetshenziswa okuhlukahlukene kokugeleza kwemisele evulekile, okuhlanganisa imifula, imifudlana, kanye nemisele yokunisela. Inikeza isilinganiso sokugeleza esinembile nesithembekile, okwenza kube ukukhetha okuthandwayo kumaphrojekthi amaningi okuphathwa kwamanzi kanye nokuqapha imvelo.
I-flowmeter yesiteshi esivulekile se-Weir:
Ngakolunye uhlangothi, indlela ye-weir kanye ne-channel ingenye indlela esetshenziswa kabanzi ekulinganiseni ukugeleza kwesiteshi esivulekile. Le ndlela ihilela ukusetshenziswa kwe-weir, isakhiwo esibekwe ngaphesheya kwesiteshi ukudala izimo ezithile zokugeleza. Izinga lamanzi elingaphezulu kwe-weir liyalinganiswa futhi ukuphuma kubalwa ngokusekelwe ezicini ze-weir kanye nezinga lamanzi.
Ama-Weirs angafika ngezindlela ezahlukene nobukhulu, kufaka phakathi ama-weirs anezingqimba ezingu-V, ama-weirs angunxande, kanye nama-weirs ane-trapezoidal, ngalinye lenzelwe ukusetshenziswa kokulinganisa ukugeleza okuthile. Indlela ye-weir kanye ne-channel iwusizo kakhulu lapho izimo zokugeleza ezihambisanayo nezibikezelwayo zingadalwa khona, okuvumela ukubalwa kokugeleza okunembile.
Umehluko kanye nezicelo:
Umehluko omkhulu phakathi kwendlela ye-velocity area kanye nendlela ye-weir kanye ne-channel yindlela esetshenziswa ukukala izinga lokugeleza. Indlela ye-velocity-area igxile ekubambeni ijubane lamanzi ezindaweni ezahlukene esiteshini, kuyilapho indlela ye-weir-channel incike ekusebenziseni isakhiwo se-weir ukudala izimo ezithile zokugeleza.
Ukukhetha phakathi kwalezi zindlela ezimbili kuncike ezidingweni ezithile zokusetshenziswa kokulinganisa ukugeleza. Indlela yendawo yejubane ifaneleka ezimweni lapho kudingeka khona ukulinganisa ukugeleza okuqhubekayo, kwesikhathi sangempela, njengezindawo zamanzi zemvelo kanye neziteshi zokunisela. Ngakolunye uhlangothi, indlela ye-weir kanye nesiteshi ifaneleka kahle ezimweni lapho izimo zokugeleza ezilawulwayo zingasungulwa khona, njengezitshalo zokuhlanza amanzi amdaka kanye neziteshi zokukhipha izimboni.
Ekuphetheni, kokubili indlela yendawo yejubane kanye nendlela ye-weir kanye ne-channel kuyizindlela ezibalulekile zokulinganisa ukugeleza kwesiteshi esivulekile. Ukuqonda umehluko phakathi kwalezi zindlela kanye nokusetshenziswa kwazo kubalulekile ekukhetheni indlela yokulinganisa ukugeleza efanele kakhulu yesimo esithile. Ngokukhetha indlela efanele, kungatholakala izilinganiso zokugeleza ezinembile nezithembekile, okunegalelo emizamweni yokuphathwa kwamanzi okuphumelelayo kanye nokuqapha imvelo.
Isikhathi sokuthunyelwe: Meyi-26-2024