Qib 9 Titanium cov kav dej yog nquag siv rau kev siv corrosion, yuav tiv thaiv nws li cas?

Cov khoom siv titanium thiab titanium tubes yog qhov yooj yim rau kev siv corrosion, tshwj xeeb tshaj yog qhov dav ntawm qhov sib txawv ntawm li 0.5mm yog qhov ua rau corrosion. Thaum tshav kub kub exchanger raj thiab titanium raj phaj feem ntau tshwm sim ntawm qhov corrosion, titanium thiab non-metallic gasket tiv tauj, nyob rau hauv tas li ntawd, qhov corrosion nyob rau hauv qhov kub ntawm 120 degree saum toj no saturated brine yog nquag tshwm sim. Kev ntsuas los tiv thaiv kev tawg yog: (1) zam cov kab nrib pleb thiab stagnation ntawm cov khoom siv thiab cov kav dej; siv titanium-palladium alloy flange vuam rings lossis titanium gaskets thiab titanium composite gaskets; titanium raj rau cov cua kub exchangers thiab titanium tube nplooj ntawv txuas nrog lub zog expansion thiab sealing welds; thiab qhov kub ntawm cov kua qaub kua qaub yog tswj ntawm 70-85 degree .

Titanium rods thiab titanium alloys tsis tuaj yeem siv rau hauv cov roj chlorine qhuav, txawm tias qhov kub thiab txias qis dua {{0}}} degree, kev siv tshuaj lom neeg yuav tshwm sim, tsim titanium tetrachloride, thiab tom qab ntawd decomposed rau hauv titanium dichloride, thiab txawm kub. Titanium tuaj yeem tswj kev ruaj ntseg ruaj ntseg thaum cov dej hauv cov tshuaj chlorine siab dua 0.5%. Cov khoom tsim tawm ntau qhov kub thiab txias ntub dej chlorine ntawm 75 ~ 90 degree, uas yuav tsum tau txias thiab qhuav. Cov ntawv thov tseem ceeb ntawm titanium hauv ionic membrane caustic soda cov khoom siv yog: anode tank ntawm anode system, rhaub ntawm cov ntsev ntsev, concentrated ntsev dej twj, dilute ntsev dej twj tso kua mis, dechlorination ntauwd, dilute brine system distributor, ntsuas thiab txias; txias, nqus ntauwd thiab cais ntawm sodium hypochlorite system; chlorine ntub dej txias ntawm chlorine kho system; qib ntsuas ntawm brine system; tshav kub exchanger ntawm kev puas tsuaj system; circulating twj tso kua mis ntawm alkali, alkali system lye coolers thiab piping rau saum toj no systems.

Cov khoom siv titanium kis tau los ntawm cov hlau yuav txo nws txoj kev tiv thaiv corrosion, yog li ntawd titanium yooj yim nqus hydrogen thiab ua rau nkig hloov los ntawm hydrogen hydrogenation, qhov ntau kis los ntawm hlau, qhov tshwm sim loj ntawm titanium hydrogen nqus. Yog li ntawd, nyob rau hauv lub titanium cov cuab yeej ua, tsheb thauj mus los, installation, overhaul thiab txij nkawm, yuav tsum tsis txhob yuav ntau npaum li sai tau siv cov cuab yeej steel.

Vim yog qhov zoo tshaj plaws corrosion kuj ntawm titanium, daim ntawv thov ntawm titanium cov cuab yeej nyob rau hauv lub ionic membrane caustic soda kev lag luam muaj cuab kev zoo: Ua ntej, nws prolongs lub neej kev pab cuam ntawm cov khoom, txo cov sij hawm ntawm tu cov khoom thiab kav, thiab fundamentally daws qhov teeb meem ntawm kev khiav, bubbling, dripping thiab to, txuag lub zog thiab ua rau kom lub sij hawm ntau lawm. Qhov thib ob, kev siv cov khoom siv titanium thiab cov kav dej titanium tuaj yeem txo cov nqi ntawm cov khoom siv thiab cov khoom siv kav dej thiab txo cov nqi tsim khoom. Kev siv cov khoom siv titanium, txawm hais tias kev nqis peev ib zaug yog qhov loj, tab sis los ntawm cov ntsiab lus dav dav, nws yog kev lag luam hauv lub sijhawm ntev. Qhov peev txheej ntawm cov khoom siv titanium yog kwv yees li 2 npaug ntawm cov hlau tsis muaj steel, lub neej ntawm cov khoom titanium yog ntev, tus nqi ntawm kev hloov kho cov khoom siv thiab cov kav dej thiab kev kho tsis tu ncua raug txo, uas ua tau txuag nyiaj thiab txo tus nqi.