Imisebenzi yokuhlanza nokusatshalaliswa kwamanzi iqinile ngokwemvelo, okuhlanganisa ukuhambisa amanzi esuka endaweni ethile eya kwenye, ukwandisa umfutho wokuhlunga, ukujova amakhemikhali okuhlanza amanzi, nokusabalalisa amanzi ahlanzekile ezindaweni lapho asetshenziswa khona.Ukunemba nokwethembeka kubaluleke kakhulu uma usebenzisa iphampu yokulinganisa umthamo olawulwayo. njengengxenye yohlelo lomjovo wamakhemikhali kanye nokwengeza ohlelweni lokwelapha amanzi.I-flowmeter ye-electromagnetic ingaba yisixazululo esiphumelelayo sokuqinisekisa ukusebenza kahle kwemishini ukuze kuqinisekiswe ukusebenza kahle okuphezulu kwenqubo yokudosa amakhemikhali.
Amasistimu okuphakelayo azinikele asetshenziselwa ukuhlinzeka ngamakhemikhali kuzo zonke izigaba zokusebenza kwamanzi namanzi angcolile.Inqubo yokuhlanza amanzi idinga ukuhlanganiswa okuphelele, ngakho amakhemikhali angase adinge ukungezwa ukuze kumiswe indawo ekahle yokukhula kwezinto eziphilayo.Kuyadingeka futhi ukuthola i-alkalinity eyanele ukuze gcina uhla lokusebenza oludingekayo lwe-pH.
Njengengxenye yomjovo wamakhemikhali, ngokuvamile kuyadingeka ukwengeza i-asidi noma i-caustic ukulawula i-pH, ukwengeza i-ferric chloride noma i-alum ukuze kukhishwe imisoco, noma ukwengeza imithombo yekhabhoni eyengeziwe njenge-methanol, i-glycine noma i-acetic acid ukuze kuthuthukiswe inqubo.Lapho ujova amakhemikhali abizayo inqubo yokuhlanza amanzi, abaqhubi bezitshalo kumele baqinisekise ukuthi inani elifanele lengezwa ohlelweni njengengxenye yokulawulwa kwekhwalithi.Ukusetshenziswa kakhulu noma okuncane kakhulu kwamakhemikhali kungaholela ezindlekweni eziphakeme zokusebenza, ukugqwala kwamazinga okugqwala, ukugcinwa njalo kwemishini, nokunye okungekuhle. imiphumela.
Isistimu ngayinye yokuphakela ngamakhemikhali ihlukile, kuye ngohlobo lwekhemikhali okufanele iphampe, ukugxilwa kwayo, kanye nezinga lokuphakela elidingekayo.Amaphampu okulinganisa angasetshenziswa njengengxenye yenqubo yokujova amakhemikhali ohlelweni lokuhlanza amanzi.Lokhu kuvame ukutholakala ku- ukusebenza kwamanzi omthombo.Isilinganiso esincane sokuphakelayo sizodinga iphampu enemitha enganikeza umthamo othize wamakhemikhali emfudlaneni owamukelayo.
Ezimweni eziningi, ipompo yokulinganisa esetshenziswa esitshalweni sokuhlanza amanzi iyisisetshenziswa esihle sokulinganisa samakhemikhali esingashintsha umthamo ngesandla noma ngokuzenzakalelayo ngokuvumelana nezidingo zezimo zenqubo.Lolu hlobo lwepompo luhlinzeka ngezinga eliphezulu lokuphindaphinda futhi lungakwazi ukupompa. amakhemikhali anhlobonhlobo, okuhlanganisa ama-asidi, ama-alkali nezinto ezibolayo noma uketshezi lwe-viscous nama-slurries.
Izikhungo zokuhlanza amanzi zihlale zifuna izindlela zokwenza ukusebenza kwazo ngokugcwele ngokunciphisa ukunakekelwa, isikhathi sokuphumula, ukuphuka kanye nezinye izinkinga. Isici ngasinye sithinta ukusebenza kahle nokukhiqiza. Kodwa uma sekuhlanganiswa, sizoba nomthelela omubi ekukhiqizeni kwefekthri kanye nesisekelo.
Okuwukuphela kwendlela yokwazi ukujova inani elifanele lekhemikhali elinikeziwe enqubweni yokuhlanza amanzi ukunquma izinga langempela lomthamo eligcinwe iphampu yokukala. Inselele iwukuthi amaphampu amaningi omjovo wamakhemikhali awavumeli umsebenzisi ukuthi ashayele ucingo ngokuphelele. izilungiselelo zesilinganiso somthamo othize.
Okuhlangenwe nakho kubonise ukuthi ukusetshenziswa kwamamitha okugeleza ukuze kuqinisekiswe ukusebenza kwepompo kunganikeza ulwazi olubalulekile mayelana nokusebenza kwepompo kanye nokunemba kwezicaciso zomkhiqizi.Ingakwazi futhi ukukhomba izinkinga zokusebenza kanye nokusebenza kahle okuncishisiwe ngenxa yokuguga kwengxenye noma ezinye izimo.Ngokwengeza amamitha okugeleza kanye ama-valve phakathi kwepompo nenqubo, abasebenzisi bangathola ulwazi lokuhlola ukusebenza kwemishini yangempela, bagqamise noma yikuphi ukuhluka, futhi balungise isivinini sepompo lapho kudingeka.
Izinhlobo eziningi zamamitha okugeleza zikala uketshezi, kanti ezinye zifaneleka kakhulu endaweni yokuhlanza amanzi namanzi angcolile kunezinye.Amanye amamitha anembe kakhulu futhi ayaphindaphindeka kunamanye.Amanye adinga ukulungiswa okuncane noma okuyinkimbinkimbi, kanti amanye ahlala isikhathi eside kunamanye.Kubalulekile ukucabangela zonke izindlela zokukhetha hhayi nje ukugxila esicini esisodwa, njengentengo. Uma kucatshangelwa ukusebenza okudingekile kanye nemisebenzi yokunakekela, amanani aphansi okuthenga ngokuvamile ayinkomba edukisayo.Umbandela ongcono yisamba sezindleko zobunikazi (TCO), ecubungula hhayi kuphela inani lokuthenga, kodwa nezindleko zokufakwa, ukugcinwa, nokushintshwa kwamamitha.
Uma kucatshangelwa izindleko, ukunemba kanye nempilo yesevisi, ama-flowmeter ka-electromagnetic angaba yisinqumo esifanelekile sokufuna izicelo zokwelashwa kwamanzi.Ubuchwepheshe bokulinganisa i-electromagnetic buqeda isidingo sezingxenye ezihambayo, ezingabangela izinkinga zokusebenza nokugcinwa kwazo lapho zisetshenziswa emanzini anokuqukethwe okuphezulu okuqinile.I-electromagnetic flowmeter ingakala cishe noma yikuphi uketshezi oluqhutshwayo, okuhlanganisa amanzi acutshungulwa kanye namanzi angcolile.Lawa mamitha anikeza ukwehla komfutho ophansi, isilinganiso esinwetshiwe sokujika phansi kanye nokuphindaphinda okuhle kakhulu.Aziwa ngokuhlinzeka ngezilinganiso zokunemba okuphezulu ngenani elifanele.
I-electromagnetic flowmeter isebenza ngokomthetho ka-Faraday wokungeniswa kuka-electromagnetic ukukala isivinini soketshezi. Umthetho uthi uma ikhondukta ihamba endaweni kazibuthe, kukhiqizwa isignali kagesi ku-conductor, futhi isignali kagesi ilingana nesivinini samanzi. ukuhamba endaweni kazibuthe.
Ngokuya ngekhwalithi yoketshezi kanye/noma ikhwalithi yamanzi, ama-electrode ensimbi engagqwali ajwayelekile (AISI 316) asetshenziswa kumamitha amaningi okugeleza kuka-electromagnetic angase anele. i-flowmeter izoshintsha ngokuhamba kwesikhathi.Abanye abakhiqizi bezinsimbi bashintshele kuma-electrode e-Hastelloy C njengezinto ezijwayelekile ukuze banikeze ukumelana nokugqwala okungcono nempilo yesevisi ende.Le superalloy inokumelana okuphezulu nokugqwala kwendawo, okuyinzuzo ezindaweni ezine-chloride emazingeni okushisa aphezulu. Ngenxa yokuqukethwe kwe-chromium ne-molybdenum, inezinga eliphezulu lokumelana nokugqwala nxazonke.I-Chromium ikhulisa ukumelana nezimo ze-oxidizing, futhi i-molybdenum yandisa ukumelana nokunciphisa izindawo.
Abanye abakhiqizi basebenzisa i-Teflon lining esikhundleni serabha eqinile ukuze banikeze izinto ezimelana nezinga lokushisa eliphezulu ezinezici zamakhemikhali ezinamandla.
Amaqiniso afakazele ukuthi ama-flowmeter ka-electromagnetic afaneleka kakhulu ekufakweni komjovo wamakhemikhali abalulekile ezindaweni zokuhlanza amanzi.Avumela abaqhubi bezitshalo ukuthi balinganise ngokunembile umthamo woketshezi oludlula kuwo.Lawa mamitha angasetshenziswa njengengxenye yesistimu ye-loop evaliwe ukuthumela okukhiphayo. kusilawuli se-programmable logic (PLC) ukuze sinqume umthamo wamakhemikhali nganoma yisiphi isikhathi.Lolu lwazi lusiza ukuphatha izindleko zamakhemikhali futhi luxazulule imithetho esebenzayo yezemvelo.Futhi bahlinzeka ngezinzuzo ezibalulekile zomjikelezo wokuphila zokuhlanza nokusatshalaliswa kwamanzi.Ziklanyelwe ukuzuza Ukunemba okungu-+0.25% ngaphansi kwezimo ezikahle zokugeleza kwamanzi.Ngaso leso sikhathi, ukumiswa kweshubhu eligelezayo elingahlaseli, elivulekile cishe kuqeda ukulahlekelwa kwengcindezi.Uma kucaciswe kahle, imitha ayithinteki kangako yi-viscosity, izinga lokushisa, nokucindezela, futhi lapho. azikho izingxenye ezihambayo ezithiya ukugeleza, futhi ukunakekelwa nokulungiswa kugcinwa kuncane.
Esimeni esinzima sesikhungo sokuhlanza amanzi, ngisho nephampu yokulinganisa usayizi ongcono kakhulu ingase ihlangabezane nezimo zokusebenza ezihlukile kulokho okulindelekile.Ngokuhamba kwesikhathi, ukulungiswa kwenqubo kungashintsha ukuminyana, ukugeleza, ukucindezela, izinga lokushisa, kanye ne-viscosity yoketshezi okufanele iphampu iluphathe. .
Chris Sizemore is the technical sales manager for Badger Meter Flow Instrumentation.He joined the company in 2013 and has held positions in the technical support team.You can contact him at csizemore@badgermeter.com.For more information, please visit www.badgermeter.com.
Isikhathi sokuthumela: Jan-04-2022