Imitha yokuhamba kwe-ultrasonic yetshaneli evulekileyo ibandakanya ukusebenzisa imitha yokuhamba kwe-ultrasonic kunye ne-Parshall flume ukulinganisa ukuhamba kolwelo kumjelo ovulekileyo. Nazi izinto ezibalulekileyo:
- Ingaba isebenza kanjani:
- I-Parshall flume: I-Parshall flume sisakhiwo esizinzileyo se-hydraulic esikhawulezisa ukuhamba komjelo ongaphantsi kwe-subcritical, ovulekileyo. Iyancipha zombini iindonga ezilinganayo kwaye inethontsi emgangathweni kwi-flume throat. Oku kuvumela ukuba izinga lokuhamba kwamanzi kwicandelo elingaphezulu kwe-flume limiselwe ngokulinganisa kwinqanaba elinye kwindawo ethile.
- Imitha yokuhamba kwe-Ultrasonic: I-sensor efakwe ngaphezulu komjelo wokuhamba kwi-Parshall flume idlulisela isandi esibonakaliswa ngumphezulu wamanzi. Ixesha elidlulayo phakathi kokuthumela i-pulse nokufumana i-echo limisela inqanaba lamanzi kwi-flume. Olu linganiso lwenqanaba luguqulwa lube yisantya sokuhamba ngokusebenzisa i-equation ecwangcisiweyo ethile kuhlobo kunye nobukhulu be-flume yeParshall esetyenziswayo.
- Iingenelo:
- Ukuchaneka: Kunokubonelela ngokuchaneka okuhle ngokubanzi kokulinganisa ukuhamba kwamanzi, ngesiqhelo ngaphakathi kwe-±8-10% kuxhomekeke kwizinto ezahlukeneyo ezifana nokuchaneka kwe-flume, ukuchaneka kwemitha yokuhamba kwamanzi, impazamo yokufakela, kunye nempazamo yokulinganisa.
- Ukufakelwa okungadibaniyo: I-sensor ye-ultrasonic ayidibani nolwelo, oko kuthetha ukuba ayichaphazeleki zizinto ezifana namafutha, izinto eziqinileyo ezixhonyiweyo, i-silt, kunye neekhemikhali ezirhabaxa kumjelo wokuhamba. Ikwafuna ulondolozo oluncinci.
- Iindlela ezahlukeneyo zokusetyenziswa: Ii-Parshall flumes zisetyenziswa kakhulu kwiindawo ezahlukeneyo ezifana nemijelo yokunkcenkceshela, amanzi angaphezulu, iindawo zokukhupha amanzi kwimizi-mveliso, kunye neendawo zokunyanga amanzi amdaka. Ukudibanisa ne-ultrasonic flow meter kwenza kube sisisombululo esisebenzisekayo sokulinganisa ukuhamba kwamanzi kwimijelo evulekileyo.
- Iingxaki kunye nemingeni:
- Izinto ezisingqongileyo: Iimitha zokuhamba ze-Ultrasonic zinokuchaphazeleka ngumoya, umphunga, kunye ne-gradients yobushushu bomoya. Utshintsho kubushushu bomoya lunokuchaphazela isantya sesandi, ngoko ke imitha yokuhamba kufuneka ihlawulele olu tshintsho. Ukukhanya kwelanga kunokuchaphazela nokusebenza kwe-sensor ngokufudumeza i-sensor ngokwenziwa.
- Ukuphazamiseka kokuhamba kwamanzi: Ukuxinana kwamanzi, igwebu, kunye nenkunkuma edadayo kukuhamba kwamanzi kunokubonelela ngokufundwa kokuhamba kwamanzi okuphezulu ngokwenziwa njengoko imitha isenokuzibona ezi zinto ngaphambi kokuba ibone umgangatho womphezulu womsinga wokuhamba kwamanzi.
- Iimfuneko zokufakelwa kweflume: Iiflume zeparshall kufuneka zibe kumgangatho othe tye ukusuka phambili ukuya ngasemva kunye nokusuka ecaleni ukuya kwelinye ukuze kulinganiswe ngokuchanekileyo. Nangona kwenziwe izilungiso kwezinye iiflume, ukuqinisekisa ukufakwa kunye nokulungelelaniswa okufanelekileyo kubalulekile ukuze kulinganiswe ngokuchanekileyo ukuhamba kwamanzi.
Ixesha lokuthumela: Novemba-05-2024