Kubunjiniyela obusebenzayo, kunezindlela ezintathu eziyinhloko zokuvikela ukugqwala kwensimbi.
1.Indlela yefilimu evikelayo
Ifilimu yokuvikela isetshenziselwa ukuhlukanisa insimbi endaweni ezungezile, ukugwema noma ukunciphisa umphumela olimazayo we-corrosive medium on the steel.Ngokwesibonelo, fafaza ngopende, koqweqwe lwawo, ipulasitiki, njll phezu kwensimbi;noma sebenzisa ukufakwa kwensimbi njengefilimu evikelayo, njenge-zinc, ithini, i-chromium, njll.
2.Indlela yokuvikela i-Electrochemical
Imbangela ethile yokugqwala ingahlukaniswa ngendlela yokuvikela engekho manje kanye nendlela yokuvikela yamanje ehlabeke umxhwele.
Indlela yokuvikela engekho okwamanje ibizwa nangokuthi indlela ye-anode yomhlatshelo.Iwukuxhuma insimbi esebenza kakhulu kunensimbi, njenge-zinc ne-magnesium, esakhiweni sensimbi.Ngenxa yokuthi i-zinc ne-magnesium inamandla aphansi kunensimbi, i-zinc, ne-magnesium iba i-anode yebhethri yokugqwala.ezilimele (i-anode yomhlatshelo), kuyilapho isakhiwo sensimbi sivikelekile.Le ndlela ivame ukusetshenziselwa izindawo lapho kungelula noma kungenzeki khona ukumboza isendlalelo esivikelayo, njengama-boilers esitimu, amapayipi angaphansi komhlaba amagobolondo omkhumbi, izakhiwo zobunjiniyela bechweba, izakhiwo zemigwaqo namabhuloho, njll.
Indlela yokuvikela yamanje esetshenziswayo ukubeka ezinye izinsimbi ezilahliwe noma ezinye izinsimbi eziphikisayo eduze nesakhiwo sensimbi, njengensimbi ene-silicon ephezulu kanye nesiliva eholayo, bese uxhuma isigxobo esinegethivu sikagesi wangaphandle we-DC esakhiweni sensimbi esivikelwe, kanye isigxobo esihle sixhunywe esakhiweni sensimbi esiphikisayo.Ensimbi, ngemva kokufakwa kukagesi, insimbi ephikisayo iba i-anode futhi igqwalile, futhi isakhiwo sensimbi siba i-cathode futhi sivikelwe.
3.I-Taijin Chemical
I-Carbon steel yengezwa ngezinto ezingathuthukisa ukumelana nokugqwala, njenge-nickel, i-chromium, i-titanium, ithusi, njll., ukwenza izinsimbi ezahlukene.
Izindlela ezingenhla zingasetshenziswa ukuvimbela ukugqwala kwemigoqo yensimbi kukhonkolo eqinisiwe, kodwa indlela eyonga kakhulu futhi ephumelelayo iwukuba ngcono ukuminyana kanye ne-alkalinity kakhonkolo nokuqinisekisa ukuthi imigoqo yensimbi inogqinsi olwanele lokuvikela ungqimba.
Emkhiqizweni we-cement hydroxide, ngenxa ye-calcium hydroxide engaba ngu-1/5, inani le-pH yendawo ephakathi licishe libe ngu-13, futhi ukuba khona kwe-calcium hydroxide kubangela ifilimu ye-passivation ebusweni bensimbi ukuze yakhe ungqimba oluvikelayo.Ngesikhathi esifanayo, i-calcium hydroxide ingase futhi isebenze ngewashi lasemkhathini CQ ukunciphisa i-alkalinity kakhonkolo, ifilimu ye-passivation ingase ibhujiswe, futhi indawo yensimbi isesimweni sokusebenza.Endaweni enomswakama, ukugqwala kwe-electrochemical kuqala ukwenzeka phezu kwebha yensimbi, okuholela ekuqhekekeni kukakhonkolo eduze kwebha.Ngakho-ke, ukumelana ne-carbonization kakhonkolo kufanele kuthuthukiswe ngokuthuthukisa ukuhlangana kokhonkolo.
Ngaphezu kwalokho, i-chloride ions inomphumela wokubhubhisa ifilimu ye-passivation.Ngakho-ke, lapho ulungiselela ukhonkolo oqinisiwe, inani likasawoti we-chloride kufanele lilinganiselwe.
Isikhathi sokuthumela: Oct-10-2022