Imitha yokuHamba kweChannel evulekileyo yeParshall Flume

I-Parshall flume sisakhiwo esisetyenziswa kakhulu xa kulinganiswa ukuhamba kwamanzi kwiindlela ezivulekileyo. Ibonelela ngendlela elula nechanekileyo yokulinganisa ukuhamba kwamanzi kwiindlela zokunkcenkceshela, kwiinkqubo zamanzi emvula kunye nezityalo zonyango lwamanzi amdaka. Ukuphucula ngakumbi ukuchaneka kokulinganiswa kokuhamba kwamanzi, ii-flowmeters zeendlela ezivulekileyo zihlala zisetyenziswa kunye nee-Parshall flumes.

Iimitha zokuhamba kwemisele evulekileyo zenzelwe ngokukodwa ukulinganisa ukuhamba kolwelo kwiindlela ezivulekileyo ezifana nemilambo, imilambo kunye nemijelo. Zisebenzisa ubuchwepheshe obahlukeneyo ukumisela ngokuchanekileyo ukuhamba kwezithuthi, zibonelela ngedatha ebalulekileyo kwiindlela ezahlukeneyo zokusebenza. Kwiiflume zaseParshall, iimitha zokuhamba kwemisele evulekileyo zidlala indima ebalulekileyo ekuqinisekiseni ukulinganiswa kokuhamba ngokuchanekileyo nangokuthembekileyo.

Enye yezona ntlobo zixhaphakileyo zee-flowmeters zetshaneli evulekileyo ezisetyenziswa kwi-Parshall flumes yi-ultrasonic flowmeter. Olu hlobo lwe-flow meter lusebenzisa amaza e-ultrasonic ukulinganisa isantya solwelo oluhambayo. Ngokuthumela nokufumana ii-pulses ze-ultrasonic, i-flow meter inokubala ngokuchanekileyo ukuhamba kwayo ngokusekelwe kwixesha elithathwa yi-pulse ukuhamba phakathi kwee-transducers. Ii-flow meter ze-Ultrasonic aziphazamisi kwaye zinokufakwa ngokulula kwiisinki zeParshall, nto leyo eyenza ukuba zibe lukhetho oludumileyo kwiizicelo ezininzi.

Isiphumo semitha yokuhamba kwamanzi evulekileyo ye-Parshall flume sidla ngokuba yindlela yokulinganisa ukuhamba kwamanzi enokuboniswa kwisikrini sedijithali okanye idluliselwe kwinkqubo yokufumana idatha ukuze ihlalutywe ngakumbi. Le datha ibalulekile ekujongeni nasekulawuleni imithombo yamanzi, ukuphucula iinkqubo zokunkcenkceshela, kunye nokuqinisekisa ukusebenza kakuhle kwezityalo zonyango lwamanzi amdaka.

Ngamafutshane, iimitha zokuhamba kwemisele evulekileyo zidlala indima ebalulekileyo ekuphuculeni ukuchaneka nokuthembeka kokulinganisa ukuhamba kwetanki yaseParshall. Ngokusebenzisa ubuchwepheshe obuphambili obufana neemitha zokuhamba kwe-ultrasonic kunye ne-electromagnetic, ukulinganisa ukuhamba okuchanekileyo kunokufunyanwa, okubonelela ngedatha ebalulekileyo kwiintlobo ngeentlobo zezicelo. Ukuqonda ukusebenza kwemitha yokuhamba kwemisele evulekileyo yaseParshall kubalulekile ekuqinisekiseni ulawulo olufanelekileyo lwemithombo yamanzi kunye nokusebenza ngokufanelekileyo kweenkqubo ze-hydraulic.