Umlinganiselo ochanekileyo ophezulu:
Ii-electromagnetic flowmeters zisebenza ngokusekelwe kumthetho kaFaraday wokungenisa i-electromagnetic. Xa ulwelo oluqhubayo (zombini indle kunye namanzi zinomoya othile) luhamba kwindawo yemagnethi, kuveliswa amandla e-electromotive abangelwayo, kwaye ubukhulu bawo buhambelana nesantya sokuhamba kolwelo. Ekusetyenzisweni okusebenzayo kwezityalo zamanzi amdaka kunye namanzi, le ndlela yokulinganisa inokubonelela ngedatha yokuhamba ngokuchanekileyo okuphezulu. Umzekelo, kwinkqubo yokulinganisa iikhemikhali zonyango lwamanzi amdaka, ukulinganisa ngokuchanekileyo ukuhamba kwamanzi kunokuqinisekisa ukuba iikhemikhali kunye nendle zixutywe ngokulinganayo ukuze kufezekiswe isiphumo esihle kakhulu sonyango lwamanzi amdaka.
Iindawo ezihamba ngokukhululekileyo:
Imitha yokuhamba kwe-electromagnetic ayinazo izinto zangaphakathi ezithintela ukuhamba kolwelo, ezifana namanzi aluhlaza aqulethe i-sediment, i-algae kunye nezinye izinto ezingcolileyo kwisityalo samanzi, kwaye ulwakhiwo lwelindle luyinkimbinkimbi, olunokuba namasuntswana aqinileyo, imicu kunye nezinye izinto. Imitha yokuhamba kwe-electromagnetic ayizukuvalwa ngenxa yezi zinto zingcolileyo, ezinokuqinisekisa ukuhamba kakuhle kolwelo, ukunciphisa iindleko zokugcinwa kwezixhobo kunye nempazamo yokulinganisa ebangelwa kukuxinana.
Umlinganiselo woluhlu olubanzi:
Ungalinganisa isantya sokuhamba kwamanzi ukusuka kwesezantsi kakhulu ukuya kwephezulu kakhulu. Kwinkqubo yokubonelela ngamanzi kwisityalo samanzi, ukusetyenziswa kwamanzi kwamaxesha ahlukeneyo kuyahluka kakhulu, njengexesha eliphezulu lokusetyenziswa kwamanzi emini kunye nexesha lokungena emanzini ebusuku, i-electromagnetic flowmeter inokulinganisa ngokuchanekileyo ubungakanani bamanzi phantsi kokuhamba kwamanzi ahlukeneyo kwaye ivumelane notshintsho lokuhamba kwamanzi. Kwisityalo se-sewage, ukuhamba kwamanzi amdaka kumanqanaba ahlukeneyo onyango kuya kuba notshintsho olukhulu, kwaye i-electromagnetic flowmeter nayo inokuyisingatha ngempumelelo.
Ubuchule bokulinganisa i-Bidirectional measurement:
Kwezinye iinkqubo zokunyanga amanzi amdaka namanzi, ulwelo lunokuhamba ngasemva. Umzekelo, kwezinye iinkqubo ezijikelezayo okanye izikhululo zokumpompa kwizityalo zokunyanga amanzi amdaka, ukuguquka kokuhamba kwamanzi kunokwenzeka ngexesha lokuqaliswa kwezixhobo okanye ukusombulula iingxaki. Ii-flowmeters ze-electromagnetic zinokulinganisa ngokuchanekileyo ukuhamba phambili nokubuya umva, zibonelela ngedatha epheleleyo yokusebenza kwenkqubo kunye nokubeka esweni.
Iindawo zokufakela
Ukukhetha indawo:
Ukuze kuqinisekiswe ukuchaneka komlinganiselo, i-electromagnetic flowmeter kufuneka ifakwe kwipayipi apho imeko yokuhamba kolwelo izinzile. Kwinkqubo yepayipi yezityalo zamanzi amdaka namanzi, kuyimfuneko ukuphepha ukufakwa kufutshane neendawo zokumelana zasekuhlaleni ezifana neengqiniba kunye nee-tee zepayipi. Umzekelo, ukuba i-electromagnetic flowmeter ifakwe kufutshane kakhulu nendawo esezantsi yengqiniba kwipayipi ehambisa udaka yesityalo samanzi amdaka, impazamo yokulinganisa iya kubangelwa yi-vortex kunye nokusasazwa kwesantya sokuhamba kolwelo kwingqiniba. Indawo efanelekileyo yokufakela ikwicandelo lepayipi ethe tye, ubude becandelo lepayipi ethe tye ephezulu bucetyiswa ukuba buphindwe ka-5-10 ububanzi bepayipi, kwaye ubude becandelo lepayipi ethe tye ephantsi ngokubanzi buphindwe ka-3-5 ububanzi bepayipi.
Iimfuno zokumisa umhlaba:
Umhlaba olungileyo ubalulekile ekusebenzeni okuqhelekileyo kwee-flowmeters ze-electromagnetic. Ngenxa yokuba i-flowmeter ye-electromagnetic isekelwe kumgaqo wokungeniswa kwe-electromagnetic, ukufunyanwa kwesignali ngokuchanekileyo kufuna umhlaba ofanelekileyo. Kwimeko-bume yezityalo zamanzi amdaka namanzi, kuba kunokubakho izixhobo zombane ezingaphezulu kunye nemithombo yokuphazamiseka ejikeleze, nikela ingqalelo engakumbi ekumhlaba. Ngokubanzi, indawo ye-sensor ye-flowmeter ye-electromagnetic kufuneka ibekwe ngokwahlukileyo, kwaye ukumelana komhlaba kufuneka kube ngaphantsi kwe-10Ω. Ukuba umbhobho wenziwe ngesinyithi, umbhobho ungasetyenziswa njengenxalenye yomhlaba, kodwa qiniseka ukuba uqhagamshelo lomhlaba lombhobho lulungile.
Iimfuno ezipheleleyo zetyhubhu:
Ii-electromagnetic flowmeters zifuna ukuba ulwelo olukwipayipi lube kwimeko yetyhubhu epheleleyo. Kwisikhululo sokumpompa amanzi amdaka sesityalo senkunkuma, kuyimfuneko ukuqinisekisa ukuba iiparameter zokukhetha nokusebenza kwepompo yamanzi amdaka zifanelekile, ukuze amanzi amdaka ahambe kwipayipi. Ukuba kukho igesi kwipayipi, iya kuchaphazela ukusasazwa kwentsimi yemagnethi kunye nokuveliswa kwamandla e-electromotive, okubangela ukulinganiswa okungachanekanga. Kwipayipi yokuhambisa amanzi yesityalo samanzi, kwinkqubo yokuqala nokumisa unikezelo lwamanzi, kufuneka kuqwalaselwe ukuthintela umoya ukuba ungangeni kwipayipi ukuqinisekisa ukulinganiswa okuqhelekileyo kwetyhubhu epheleleyo yemitha yamanzi amdaka.
Amanyathelo okulungisa
Jonga ii-electrodes rhoqo:
I-electrode yinxalenye ebalulekileyo ye-electromagnetic flowmeter. Kwimeko-bume yezityalo zamanzi amdaka namanzi, umphezulu we-electrode unokugqunywa bubumdaka emanzini, njengeoyile kunye nesikali kumjelo wamanzi amdaka. Ukucocwa rhoqo kwe-electrode kuqinisekisa ukuchaneka komlinganiselo. Ngokubanzi, indlela yokucoca ngeekhemikhali ingasetyenziselwa ukukhetha i-arhente yokucoca efanelekileyo ngokwendlela obunjwe ngayo ukungcola komphezulu we-electrode. Umzekelo, ukuba umphezulu we-electrode ikakhulu yi-calcium carbonate scale, ungasebenzisa isisombululo se-dilute hydrochloric acid ukucoca, kodwa qaphela ukuhlamba ngamanzi emva kokucoca ukuze uphephe i-arhente yokucoca eseleyo kwi-electrode kunye nolwelo.
Jonga imeko yelayini:
Ulwelo lwe-electromagnetic flowmeter lunokukhusela umzimba we-sensor, kodwa lunempembelelo ethile ekuchanekeni kokulinganisa. Ekusebenzeni kwexesha elide kwezityalo zamanzi amdaka namanzi, ulwelo lungahlanjwa kwaye ludliwe lulwelo. Umzekelo, xa izityalo zamanzi amdaka zinyanga ulwelo lwemizi-mveliso olune-asidi enamandla okanye i-alkalescence, ulwelo lungadli. Kubalulekile ukujonga rhoqo ukuba ulwelo lonakele, lugugile, njl.njl., kwaye utshintshe ulwelo ngexesha ukuqinisekisa ukusebenza okuqhelekileyo kwemitha yokuhamba.
Ukujonga umgca wesiginali:
Umgca wesignali we-electromagnetic flowmeter udlulisela isignali yokulinganisa, kwaye kwindawo enzima yemizi-mveliso yezityalo zamanzi amdaka namanzi, umgca wesignali unokuba phantsi kokuphazamiseka kwe-electromagnetic, ukufuma njalo njalo. Jonga rhoqo ukuba uqhagamshelo lomgca wesignali luqinile na, ukuba kukho umonakalo na njalo njalo. Ukuba umgca wesignali ufunyenwe uneengxaki zokuphazamiseka, amanyathelo anjengeentambo zokukhusela angasetyenziselwa ukuphucula uzinzo lokudluliselwa kwesignali.
Ixesha lokuthumela: Novemba-05-2024