Kwimishini yezinzwa ze-elekthronikhi zezimboni, isimiso sokulinganisa i-flowmeter ye-electromagnetic ngumthetho kaFaraday wokungeniswa kwe-electromagnetic. Isakhiwo se-flowmeter ye-electromagnetic sakhiwe kakhulu uhlelo lwesekethe yamagnetic, i-conduit yokulinganisa, i-electrode, igobolondo, i-lining kanye ne-converter. Isetshenziswa kakhulu ukukala ukugeleza kwevolumu koketshezi oluqhubayo kanye nama-slurries emapayipini avaliwe. Kubandakanya ama-acid, ama-alkali, usawoti kanye nolunye uketshezi olubola kakhulu. Lo mkhiqizo usetshenziswa kabanzi ku-petroleum, amakhemikhali, i-metallurgy, indwangu, ukudla, imithi, ukwenza amaphepha kanye neminye imboni, kanye nokuvikelwa kwemvelo, ukuphathwa komasipala, ukwakhiwa kokulondolozwa kwamanzi kanye neminye imikhakha.
Enkambisweni yokusebenzisa i-flowmeter kagesi, ukwehluleka kwemishini kuzokwenzeka ngokungenakugwenywa. Ngokuvamile kunezinhlobo ezimbili zokwehluleka kokusebenza: okukodwa ukwehluleka kwethuluzi ngokwalo, okungukuthi, ukwehluleka okubangelwa ukulimala kwezingxenye zesakhiwo noma izingxenye zethuluzi; okwesibili, ukwehluleka okubangelwa yizimbangela zangaphandle, njengokufakwa okungafanele, ukuphazamiseka kokugeleza, ukufakwa kanye nokulinganisa, njll.
Uma i-flowmeter kagesi ihluleka, ngokuvamile sidinga ukuhlaziya ukuthi iyiphi ingxenye enenkinga bese sithola ukuthi singayilungisa kanjani inkinga.
1. Amaphutha avamile e-electromagnetic flowmeter – i-electromagnetic flowmeter ayinawo umphumela wesignali yokugeleza
Lolu hlobo lokwehluleka luvame kakhulu ngesikhathi sokusetshenziswa, futhi izizathu ngokuvamile ziyi:
(1) Ukunikezwa kwamandla kwethuluzi akujwayelekile;
(2) Ukuxhumeka kwekhebula kanye nokukhishwa kwebhodi lesekethe yamandla akuvamile;
(3) Ukugeleza koketshezi akuhlangabezani nezidingo zokufakwa;
(4) Izingxenye zenzwa zonakele noma kukhona ungqimba olunamathelayo odongeni lwangaphakathi lokulinganisa;
(5) Izingxenye zokuguqula ezonakele
Ungayixazulula kanjani?
Uma lokhu kwenzeka, qala uhlole ukuthi ukunikezwa kwamandla kwethuluzi kunephutha yini, uqinisekise ukuthi ukunikezwa kwamandla kuxhunyiwe, hlola ukuthi i-voltage yokukhipha yebhodi lesekethe lokunikezwa kwamandla ijwayelekile yini, noma zama ukufaka esikhundleni sebhodi lesekethe lokunikezwa kwamandla ukuze unqume ukuthi lilungile yini. Hlola ukuthi izintambo ziphelele futhi zixhunywe kahle. Hlola indlela yokugeleza koketshezi kanye nokuthi uketshezi olusepayipini lugcwele yini. Uma kungekho uketshezi ku-sensor, kuzodingeka ufake esikhundleni sepayipi noma ushintshe indlela yokufaka. Zama ukuyifaka ngokuqondile.
2. Isignali ye-flowmeter ye-electromagnetic iya ngokuya iba ncane noma isignali yehla ngokuzumayo
Iningi lala maphutha libangelwa ithonya lendawo yokulinganisa noma indawo yangaphandle, futhi iphutha lingasuswa lodwa ngemva kokususwa kokuphazamiseka kwangaphandle. Ukuze kuqinisekiswe ukunemba kokulinganisa, ukwehluleka okunjalo akunakunakwa. Kwezinye izindawo zokukhiqiza, ngenxa yokudlidliza okukhulu kwepayipi lokulinganisa noma uketshezi, ibhodi lesifunda le-flowmeter lizokhululwa, futhi inani lokukhipha nalo lingase lishintshe.
Ungayixazulula kanjani?
(1) Qinisekisa ukuthi ngabe yisona yini isizathu sokusebenza kwenqubo, nokuthi uketshezi luyashaya. Ngalesi sikhathi, i-flowmeter ibonisa kuphela isimo sokuhamba ngeqiniso, futhi iphutha lingasuswa lodwa ngemva kokuphela kwe-pulsation.
(2) Ukuphazamiseka kwe-electromagnetic okubangelwa yiziphethu zangaphandle ezilahlekile, njll. Hlola ukuthi kukhona yini izinto zikagesi ezinkulu noma imishini yokushisela kagesi esebenza endaweni yokusebenza yethuluzi, futhi uqiniseke ukuthi ithuluzi liqinile futhi indawo yokusebenza ilungile.
(3) Uma ipayipi lingagcwalisiwe ngoketshezi noma uketshezi luqukethe amabhamuza omoya, kokubili kubangelwa yizizathu zenqubo. Ngalesi sikhathi, uchwepheshe angacelwa ukuthi aqinisekise ukuthi inani lokukhipha lingabuyela esimweni esijwayelekile ngemva kokuba uketshezi selugcwele noma amabhamuza omoya ethule.
(4) Ibhodi lesekhethi lomthumeli liyisakhiwo se-plug-in. Ngenxa yokudlidliza okukhulu kwepayipi lokulinganisa noma uketshezi olusendaweni, ibhodi lamandla le-flowmeter livame ukukhululeka. Uma likhululekile, i-flowmeter ingahlukaniswa futhi ibhodi lesekhethi lingalungiswa kabusha.
3. Iphuzu elingu-zero le-flowmeter ye-electromagnetic ayizinzile
Ukuhlaziywa Kwembangela
(1) Ipayipi aligcwalisiwe ngoketshezi noma uketshezi luqukethe amabhamuza omoya.
(2) Ngokwemvelo, kukholelwa ukuthi akukho ukugeleza koketshezi ephampini yepayipi, kodwa empeleni kukhona ukugeleza okuncane.
(3) Izizathu zalolu ketshezi (njengokungahambisani kahle koketshezi, ukungcola kwe-electrode, njll.).
(4) Ukushisa kwesekethe yesiginali kuyehliswa.
Ungayixazulula kanjani?
Kuyadingeka ukuhlola ukuthi ngabe i-medium igcwele amapayipi nokuthi ngabe kukhona amabhamuza omoya ku-medium. Uma kukhona amabhamuza omoya, i-air eliminator ingafakwa phezulu kwamabhamuza omoya. Ukufakwa okuvundlile kwethuluzi nakho kungashintshwa kube ukufakwa okuqondile. Hlola ukuthi ngabe ithuluzi liqinile kahle yini. Ukumelana nokuphansi kufanele kube ngaphansi noma kulingane no-100Ω; ukuhanjiswa kwe-medium conductive akufanele kube ngaphansi kuka-5μs/cm. Uma i-medium iqoqana epayipini lokulinganisa, kufanele isuswe ngesikhathi. Gwema ukuklwebha ulwelwesi ngesikhathi sokususwa.
Isikhathi sokuthunyelwe: Agasti-11-2022