Kwizixhobo ze-elektroniki ze-elektroniki, umgaqo wokulinganisa i-electromagnetic flowmeter ngumthetho kaFaraday wokungeniswa kwe-electromagnetic. Ulwakhiwo lwe-electromagnetic flowmeter luquka ikakhulu inkqubo yesekethe ye-magnetic, i-conduit yokulinganisa, i-electrode, i-shell, i-lining kunye ne-converter. Isetyenziswa kakhulu ukulinganisa ukuhamba komthamo we-conductive liquids kunye ne-slurry kwimibhobho evaliweyo. Kubandakanya ii-asidi, ii-alkalis, iityuwa kunye nezinye izinto ezibola kakhulu. Le mveliso isetyenziswa kakhulu kwi-petroleum, iikhemikhali, i-metallurgy, i-textile, ukutya, amayeza, ukwenza iphepha kunye neminye imimandla, kunye nokukhuselwa kwendalo, ulawulo lukamasipala, ulwakhiwo lolondolozo lwamanzi kunye neminye imimandla.
Kwinkqubo yokusebenzisa i-electromagnetic flowmeter, ezinye izixhobo ziya kusilela ngokuqinisekileyo. Zihlala zimbini iintlobo zokusilela ekusebenzeni: enye kukusilela kwesixhobo ngokwaso, oko kukuthi, ukusilela okubangelwa kukonakala kweendawo okanye izinto zesixhobo; eyesibini, ukusilela okubangelwa zizizathu zangaphandle, ezinje ngokufakelwa okungafanelekanga, ukuphazamiseka kokuhamba kwamanzi, ukufakwa kunye nokulinganisa, njl.
Xa i-electromagnetic flowmeter ingaphumeleli, sidla ngokufuna ukuhlalutya ukuba yeyiphi inxenye enengxaki size sifumane indlela yokulungisa ingxaki.
1. Iimpazamo eziqhelekileyo ze-electromagnetic flowmeter – i-electromagnetic flowmeter ayinayo i-flow signal output
Olu hlobo lokungasebenzi luxhaphake kakhulu xa lusetyenziswa, kwaye izizathu ngokubanzi zezi:
(1) Umbane wesixhobo awuqhelekanga;
(2) Uqhagamshelo lwentambo kunye nemveliso yebhodi yesekethe yamandla ayiqhelekanga;
(3) Ukuhamba kolwelo akuhlangabezani neemfuno zofakelo;
(4) Izinto zesensor zonakele okanye kukho umaleko oncamathelayo eludongeni lwangaphakathi lomlinganiselo;
(5) Izixhobo zokuguqula ezonakeleyo
Ungayisombulula njani?
Ukuba oku kuyenzeka, qala ujonge ukuba umbane wesixhobo unesiphako na, uqinisekise ukuba umbane uqhagamshelwe, ujonge ukuba i-voltage yokuphuma kwebhodi yesekethe yombane iqhelekile na, okanye uzame ukutshintsha yonke ibhodi yesekethe yombane ukuze ubone ukuba ilungile na. Jonga ukuba iintambo zilungile kwaye ziqhagamshelwe ngokuchanekileyo na. Jonga indlela ukuhamba kolwelo kwaye ulwelo olukwipayipi lugcwele. Ukuba akukho lwelo kwisensor, kuya kufuneka utshintshe ityhubhu okanye utshintshe indlela yokufakela. Zama ukuyifaka ngokuthe nkqo.
2. Isignali ye-electromagnetic flowmeter iya isiba ncinci okanye isignali iyehla ngequbuliso
Uninzi lwezi mpazamo zibangelwa yimpembelelo yesixhobo sokulinganisa okanye imeko-bume yangaphandle, kwaye impazamo inokususwa yodwa emva kokuba ukuphazamiseka kwangaphandle kususiwe. Ukuqinisekisa ukuchaneka komlinganiselo, ezo mpazamo azinakubethwa ngoyaba. Kwezinye iindawo zemveliso, ngenxa yokungcangcazela okukhulu kombhobho wokulinganisa okanye ulwelo, ibhodi yesekethe ye-flowmeter iya kukhululeka, kwaye ixabiso lemveliso linokutshintshatshintsha.
Ungayisombulula njani?
(1) Qinisekisa ukuba sisizathu sokusebenza kwenkqubo, kwaye ulwelo luyabetha. Ngeli xesha, i-flowmeter ibonisa kuphela imeko yokuhamba ngokwenyani, kwaye impazamo inokususwa yodwa emva kokuba i-pulsation iphelile.
(2) Ukuphazamiseka kwe-electromagnetic okubangelwa yimisinga yangaphandle elahlekileyo, njl. Jonga ukuba kukho izixhobo zombane ezinkulu okanye oomatshini bokuwelda bombane abasebenza kwindawo yokusebenza yesixhobo, kwaye uqinisekise ukuba isixhobo simile kwaye indawo yokusebenza ilungile.
(3) Xa umbhobho ungazaliswanga lulwelo okanye ulwelo luneebhamu zomoya, zombini ezi zinto zibangelwa zizizathu zenkqubo. Ngeli xesha, ingcali inokucelwa ukuba iqinisekise ukuba ixabiso lemveliso lingabuyela kwisiqhelo emva kokuba ulwelo luzele okanye iibhamu zomoya zithotyiwe.
(4) Ibhodi yesekethe yetransmitter yisakhiwo seplagi. Ngenxa yokungcangcazela okukhulu kombhobho wokulinganisa okanye ulwelo kwindawo, ibhodi yamandla ye-flowmeter idla ngokukhululeka. Ukuba ikhululekile, i-flowmeter inokwahlulwa kwaye ibhodi yesekethe inokulungiswa kwakhona.
3. Inqaku elingu-zero le-flowmeter ye-electromagnetic ayizinzanga
Uhlalutyo lweMbango
(1) Umbhobho awuzaliswanga lulwelo okanye ulwelo lunamaqamza omoya.
(2) Ngokwembono, kukholelwa ukuba akukho manzi aphumayo kwimpompo yetyhubhu, kodwa kukho amanzi amancinci.
(3) Izizathu zolwelo (ezifana nokungahambelani kakuhle kokuhambisa ulwelo, ungcoliseko lwe-electrode, njl.njl.).
(4) Ubushushu besekethe yesignali buyancitshiswa.
Ungayisombulula njani?
Kuyimfuneko ukujonga ukuba i-medium igcwele imibhobho na kwaye ingaba kukho amaqamza omoya kwi-medium. Ukuba kukho amaqamza omoya, i-air eliminator ingafakwa phezulu kwamaqamza omoya. Ufakelo oluthe tye lwesixhobo lunokutshintshwa lube lufakelo oluthe nkqo. Jonga ukuba isixhobo simile kakuhle na. Ukumelana komhlaba kufuneka kube ngaphantsi okanye kulingane ne-100Ω; umbane we-conductive medium akufanele ube ngaphantsi kwe-5μs/cm. Ukuba i-medium iqokelelana kwityhubhu yokulinganisa, kufuneka isuswe ngexesha. Kuphephe ukukrwela i-lining ngexesha lokususwa.
Ixesha lokuthumela: Agasti-11-2022