Imisebenzi yokuhlanza nokusatshalaliswa kwamanzi iqinile ngokwemvelo, okuhlanganisa ukuhambisa amanzi esuka endaweni eyodwa eya kwenye, ukucindezela kokuhlunga, ukujova amakhemikhali okuhlanza amanzi, nokusabalalisa amanzi ahlanzekile ezindaweni lapho asetshenziswa khona. inqubo.
Amasistimu okuphakelayo azinikele asetshenziselwa ukuhlinzeka ngamakhemikhali kuzo zonke izigaba zokusebenza kwamanzi namanzi angcolile.Inqubo yokuhlanza amanzi idinga ukuhlanganiswa okuphelele, ngakho-ke amakhemikhali angase adinge ukungezwa ukuze kumiswe indawo ekahle yokukhula kwezinto eziphilayo.Kuyadingeka futhi ukuthola i-alkalinity eyanele ukuze kugcinwe ububanzi obudingekayo be-pH yokusebenza.
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. amazinga okugqwala, ukugcinwa njalo kwemishini, neminye imiphumela emibi.
Uhlelo ngalunye lokuphakela ngamakhemikhali luhlukile, kuye ngohlobo lwamakhemikhali okufanele lumponswe, ukugxilwa kwalo, kanye nezinga lokuphakela elidingekayo.Amaphampu okulinganisa angasetshenziswa njengengxenye yenqubo yokujova amakhemikhali ohlelweni lokuhlanza amanzi.Lokhu kuvame ukutholakala ekusebenzeni kwamanzi omthombo.Isilinganiso esincane sokuphakela sizodinga iphampu enemitha enganikeza umthamo othize wamakhemikhali emfudlaneni owamukelayo.
Ezimweni eziningi, iphampu yemitha esetshenziswa esitshalweni sokuhlanza amanzi iyisisetshenziswa esihle sokulinganisa amakhemikhali esikwazi ukushintsha umthamo ngesandla noma ngokuzenzakalelayo ngokuya ngezidingo zezimo zenqubo.Lolu hlobo lwepompo luhlinzeka ngezinga eliphezulu lokuphindaphinda futhi lungakwazi ukupompa amakhemikhali ahlukahlukene, okuhlanganisa ama-acids, ama-alkali nezinto ezibolayo noma uketshezi lwe-viscous nama-slurries.
Izikhungo zokuhlanza amanzi zihlale zifuna izindlela zokwenza ukusebenza kwazo kube ngcono 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 emijovo yamakhemikhali awavumeli umsebenzisi ukuthi ashayele ezilungiselelweni eziphelele ngenani elithile lomthamo.
Okuhlangenwe nakho kubonise ukuthi ukusetshenziswa kwamamitha okugeleza kokuqinisekisa ukusebenza kwephampu kunganikeza ulwazi olubalulekile mayelana nokusebenza kwepompo kanye nokunemba kwezicaciso zomenzi. Ingakwazi futhi ukukhomba izinkinga zokusebenza kanye nokusebenza okuncishisiwe ngenxa yokuguga kwengxenye noma ezinye izimo.Ngokwengeza amamitha okugeleza namavalvu phakathi kwephampu nenqubo, abasebenzisi bangathola ulwazi lokuhlola ukusebenza kwesisetshenziswa sangempela, bagqamise noma yimuphi umehluko, futhi balungise isivinini sepompo.
Izinhlobo eziningi zamamitha agelezayo zikala uketshezi, kanti ezinye zifaneleka kakhulu endaweni yokuhlanza amanzi namanzi angcolile kunezinye.Amanye amamitha anembe kakhulu futhi ayaphindaphindeka kunamanye.Amanye adinga ukunakekelwa okuyinkimbinkimbi noma okuyinkimbinkimbi, kanti amanye ahlala isikhathi eside kunezinye.Kubalulekile ukucabangela zonke izindlela zokukhetha futhi ungagxili nje esicini esisodwa, njengamanani. Uma kucatshangelwa ukusebenza okudingekile kanye nemisebenzi yokunakekela, amanani aphansi okuthenga ngokuvamile ayisikhombi se-TCO esidukisayo, ingqikithi yentengo yokuthenga inkohliso. ayibheki nje kuphela inani lokuthenga, kodwa futhi nezindleko zokufakwa, ukugcinwa, nokushintshwa kwamamitha.
Uma kucatshangelwa izindleko, ukunemba kanye nempilo yesevisi, ama-flowmeter ka-electromagnetic angaba yinketho ekahle ekufuneni izicelo zokwelashwa kwamanzi.Ubuchwepheshe bokulinganisa i-electromagnetic buqeda isidingo sezingxenye ezihambayo, ezingabangela izinkinga zokusebenza nokugcinwa kwazo lapho zisetshenziswa emanzini anokuqukethwe okuqinile okuqinile.I-flowmeter ye-electromagnetic ingakala cishe noma yikuphi uketshezi oluqhutshwayo, okuhlanganisa amanzi enqubo kanye namanzi angcolile.Lawa mamitha ahlinzeka nge-turndown ratio ephansi kakhulu eyaziwayo, i-turndown high ratio eyaziwayo ihlinzeka ukwehla komfutho ophansi kanye nokuphindaphindayo. rates ngezindleko ezifanele.
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 ahambayo endaweni kazibuthe.
Kuye ngekhwalithi yoketshezi kanye/noma ikhwalithi yamanzi, ama-electrode ensimbi engagqwali evamile (AISI 316) asetshenziswa kumamitha amaningi okugeleza kuka-electromagnetic angase anele.Nokho, lawa ma-electrode angaphansi kokubhobozwa nokuqhekeka ezindaweni ezigqwalile, okungabangela ukunemba kwe-flowmeter ukuthi kushintshe ngokuhamba kwesikhathi.Abanye abakhiqizi bezinsimbi bashintshele ku-Hastelloy C ukuze banikeze izinto zokumelana ne-superloy yesevisi engcono kakhulu yokuphila njenge-corroy. ukumelana okuphezulu kokugqwala kwendawo, okuyinzuzo ezindaweni ezine-chloride emazingeni okushisa aphezulu.Ngenxa yokuqukethwe kwe-chromium ne-molybdenum, inezinga eliphezulu lokumelana nokugqwala okuzungezile.I-Chromium ikhulisa ukumelana nezimo ze-oxidizing, futhi i-molybdenum yandisa ukumelana nokunciphisa izindawo.
Abanye abakhiqizi basebenzisa i-Teflon lining esikhundleni selayini yerabha eqinile ukuze banikeze into ekwazi ukumelana nokushisa okuphezulu enezinto zamakhemikhali ezinamandla.
Amaqiniso afakazele ukuthi ama-flowmeters ka-electromagnetic afaneleka kakhulu ekufakweni komjovo wamakhemikhali ezindaweni zokuhlanza amanzi. Avumela abaqhubi bezitshalo ukuthi balinganise ngokunembile umthamo woketshezi oludlula kuwo. Lawa mamitha angasetshenziswa njengengxenye yesistimu evaliwe ukuthumela okukhiphayo kusilawuli esinengqondo esihlelekayo (PLC) ukuze sinqume umthamo wamakhemikhali kunoma yisiphi isikhathi. zenzelwe ukufeza ukunemba kwe-+0.25% ngaphansi kwezimo ezingaphansi kwezimo ezikahle zokugeleza kwamanzi.Ngaso leso sikhathi, ukumiswa kwe-tube yokugeleza okungaphendukiyo, okuvulekile cishe kuqeda ukulahlekelwa kwengcindezi.Uma kucaciswe kahle, imitha ayithinteki kakhulu yi-viscosity, izinga lokushisa, nokucindezela, futhi azikho izingxenye ezihambayo ezivimbela ukugeleza, futhi ukugcinwa nokulungiswa kugcinwa okungenani.
Esimeni esinzima sesitshalo sokuhlanza amanzi, ngisho nephampu yemitha yobukhulu obungcono 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