Iimitha zokuhamba kwe-electromagneticzisetyenziswa kakhulu kwiinkqubo zoshishino ukuze kulinganiswe ngokuchanekileyo ukuhamba kwamanzi. Nangona kunjalo, kukho iimeko ezahlukeneyo apho ukusetyenziswa kwazo kusenokungafaneleki.
1. Ulwelo oluNgenawo Umoya
Iimitha zokuhamba kwe-electromagneticzisebenza ngokusekelwe kumthetho kaFaraday wokungenisa i-electromagnetic. Zifuna ukuba ulwelo olulinganiswayo lube luqhuba umbane. Xa ulwelo oluqhuba luhamba ngemagnethi, i-voltage ifakwa kububanzi betyhubhu yokuhamba, nto leyo ehambelana nesantya sokuhamba kolwelo. Kwiziselo ezingezizo eziqhuba umbane ezifana nee-hydrocarbons ezininzi (umz., ipetroli, idizili), amanzi acocekileyo akwimeko yokungafumani i-ion, kunye nezinyibilikisi ezininzi ze-organic, i-voltage ebangelwayo iphantsi kakhulu okanye ayikho. Kwiimeko ezinjalo, i-flowmeter ye-electromagnetic ayinakulinganisa ngokuchanekileyo isantya sokuhamba kombane njengoko ingenayo i-conductive medium efunekayo ukuvelisa i-voltage elinganiswayo ebangelwayo.
2. Ulwelo olunoMxholo oQinileyo okanye iiNgcambu eziHlambayo
Ulwelo olunezinga eliphezulu lamasuntswana aqinileyo okanye izinto ezirhabaxa lunokubangela iingxaki ezinkulu kwiimitha zokuhamba kwe-electromagnetic. Ulwelo lwangaphakathi lwetyhubhu yokuhamba kwimitha yokuhamba kwe-electromagnetic lubalulekile ekusebenzeni kakuhle kwemitha. Amasuntswana arhabaxa kulwelo anokonakalisa ulwelo ngokuhamba kwexesha. Njengoko ulwelo luwohloka, lunokuchaphazela ukuchaneka komlinganiselo we-voltage ebangelwayo. Ukongeza, amasuntswana aqinileyo anokubangela ukuvaleka kwi-electrodes zemitha yokuhamba kwe-voltage. Ezi electrodes zibalulekile ekufumaneni i-voltage ebangelwayo. Ukuvaleka kunokuphazamisa unxibelelwano lombane phakathi kolwelo kunye nee-electrodes, okukhokelela ekufundweni kokugeleza okungachanekanga okanye okungaguqukiyo. Umzekelo, kwimibhobho ye-slurry yemigodi apho i-slurry ineeminerali ezininzi ezirhabaxa, imitha yokuhamba kwe-electromagnetic isenokungabi lolona khetho lulungileyo njengoko ubomi bayo kunye nokuchaneka kokulinganisa kuya kuphazamiseka kakhulu.
3. Iimeko Zokuhamba Komoya Eziphantsi
Iimitha zokuhamba kwe-electromagneticbanesantya esithile sokuhamba esingaphantsi apho ukusebenza kwabo kuyehla khona. Kwizinga lokuhamba eliphantsi kakhulu, i-voltage ebangelwa lulwelo oluhambayo incinci kakhulu. Le voltage incinci inokuchaphazeleka lula yingxolo yombane kunye neminye imithombo yokuphazamiseka. Umlinganiselo wesandi - ukuya kwingxolo uba mbi kakhulu, okwenza kube nzima kwimitha ukwahlula ngokuchanekileyo i-voltage ebangelwayo enxulumene nokuhamba komoya kwingxolo yangasemva. Ngenxa yoko, ukuchaneka kokulinganisa kwe-electromagnetic flowmeter kwiimeko zokuhamba okuphantsi kudla ngokuba kubi, kwaye isenokungakwazi ukubonelela ngedatha yesantya sokuhamba ethembekileyo. Oku kubaluleke ngakumbi kwizicelo apho izinga lokuhamba lihluka kakhulu kwaye linokwehla liye kumaxabiso aphantsi kakhulu kangangexesha elide, njengakwiinkqubo zeekhemikhali ezincinci okanye kwiinkqubo zokubonelela ngamanzi ngexesha lemfuno ephantsi.
4. Iindawo eziphantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu (Ngaphaya kwemida elinganisiweyo)
Imitha nganye yokuhamba kwe-electromagneticYenzelwe ukusebenza ngaphakathi kobushushu obuthile kunye noxinzelelo. Ukuba ubushushu okanye uxinzelelo lolwelo ludlula le mida ilinganisiweyo, lunokubangela iingxaki. Ubushushu obuphezulu bunokuchaphazela iimpawu zomzimba nezombane zezinto ezisetyenziswa kwi-flowmeter, ezifana nezinto ze-lining kunye nobushushu be-electrodes. I-lining inokwanda, inciphe, okanye ide yonakale kubushushu obuphezulu, oku kunokukhokelela ekuvuzeni okanye kutshintsho kwi-geometry ye-flow tube, ngaloo ndlela ichaphazela ukuchaneka kokulinganisa. Ngokufanayo, uxinzelelo oluphezulu lunokubeka uxinzelelo olugqithisileyo kwi-flow tube kunye nezinto zayo. Ukuba uxinzelelo luphezulu kakhulu, lunokubangela ukuba i-flow tube iguquke okanye iqhekeke, okwenza i-flowmeter ingasebenzi. Kwizicelo ezibandakanya ulwelo olushushu kakhulu, njengakwiindawo ezithile zoshishino ezinobushushu obuphezulu, okanye kwimibhobho yoxinzelelo oluphezulu kushishino lweoyile negesi apho uxinzelelo lunokufikelela kumanqanaba aphezulu kakhulu, i-electromagnetic flowmeter isenokungafaneleki ngaphandle kokuba yenzelwe ngokukodwa iimeko ezinjalo eziqatha.
Ukuqukumbela, ngelixaii-flowmeters ze-electromagneticNjengoko zibonelela ngeenzuzo ezininzi ekulinganisweni kokuhamba kwamanzi, kubalulekile ukuqwalasela ngononophelo uhlobo lolwelo, iimeko zokusebenza, kunye neempawu zokuhamba kwamanzi ukuze kuchongwe ukuba zezona zikhetho zifanelekileyo na. Kwiimeko ezichazwe apha ngasentla, ezinye iindlela zokulinganisa ukuhamba kwamanzi zinokufaneleka ngakumbi ukuqinisekisa ukuqinisekiswa kwesantya sokuhamba kwamanzi ngokuchanekileyo nangokuthembekileyo.
Ixesha lokuthumela: Matshi-10-2025