Yuav ua li cas tsis tsim nyog CIP khiav ceev ceev ceev corrosion thiab tsis ua hauj lwm ntawm cua sov raj

# Kev nrawm nrawm ntawm kev xeb thiab tsis ua haujlwm ntawm cov cua kub cua vim yog qhov tsis txaus CIP ntws nrawm Cov kev siv zog, biofilm stripping nyhuv, thiab cov khoom seem corrosive flushing efficiency yog ncaj qha cuam tshuam los ntawm CIP kev khiav nrawm nrawm. Localized corrosion yog induced los ntawm biofilm, chloride, thiab alkali uas yog daig nyob rau hauv cov kav dej tuag zones vim tsis txaus khiav ceev. Conversely, muaj zog erosion thiab particle abrasion yog tsim los ntawm ib tug ntau heev khiav ceev ceev, uas mechanically demolish lub tiv thaiv txheej ntawm cua sov raj. Kev pabcuam lub neej ntawm cov cuab yeej raug txo qis los ntawm ob qho tib si huab cua ntws. Cov lus hauv qab no qhia txog qhov zoo tshaj plaws khiav tsis tau, kev txiav txim siab, thiab kev phom sij rau plaub ntawm cov khoom siv cua sov tshaj plaws.|Cua sov Tube Khoom|Kev pheej hmoo ntawm qhov tsis txaus Flow Velocity|Txaus ntshai dhau heev lawm|Pom Zoo Phab Ntsa Flow Velocity|Sib piv cov txheej txheem optimization|| ----|----|----|----|----|| 316 Stainless Hlau|Biofilm accumulates ntawm welds / luj tshib, oxygen concentration cell pitting|Particle erosion scrapes chromium passive zaj duab xis, weld abrasion grooves|1.2–1.8 m/s|Nruab lub twj tso kua mis ntau zaus thiab ua cov lim dej tsis tu ncua kom txo cov khoom seem|| Qib 2 Titanium|Hauv zos yaj oxygen depletion nyob rau hauv biofilm, fluoride enrichment etching|Sib sib zog nqus khawb khawb thaiv TiO₂ zaj duab xis tus kheej- kho|1.0–1.6 m/s|Tsis txhob tshaj 2.0 m / s; ncua aeration flushing rau qis- ntws tuag xaus|| PFA Coated rhaub|Alkali residues nyob rau hauv txheej khawb kom tsim cov hlwv zais|Siab- ceev particle cuam tshuam txiav fluoroplastic txheej, nthuav tawm khawb infiltration channels|1.0–1.5 m/s|Ob-theem zoo lim kom tshem tawm cov khib nyiab abrasive, txwv qhov siab tshaj plaws twj tso kua mis zaus|| Quartz iav|Organic acid biofilm residues aggravate alkali frosting puas|Siab-kev poob siab ceev ua rau microcracks ntawm lub raj nto|0.8–1.2 m/s|Smooth inner phab ntsa pipeline tsim, tsis muaj lub luj tshib ntse kom txo tau kev quab yuam|## 1. Corrosion mechanism ntawm tsis txaus CIP flow velocity Fluid scouring force yog tsis txaus tshem tawm cov viscous microbial biofilm los ntawm lub raj phab ntsa, tshwj xeeb tshaj yog nyob rau hauv lub luj tshib, weld crevices, raj bundle bottoms, thiab kev txhawb nqa qhov khoob, thaum qhov tsawg kawg nkaus pom zoo tus nqi rau phab ntsa ntws biofilm 7}, nyob rau hauv qhov sib txawv ntawm cov pa oxygen (2 m) anaerobic microorganisms tsim cov organic acid, thiab chloride / alkali ntxuav kua yog nyob hauv zos, tsis tu ncua tawm tsam cov qauv tiv thaiv. 2. Nyob rau hauv cov ntaub ntawv ntawm 316 stainless hlau, cov zaj duab xis passive dissolves nyob rau hauv ib tug acidic microenvironment, ua rau chloride los mus sib sau ua ke thiab ua rau sib sib zog nqus weld pitting . 3. Nyob rau hauv lub hauv paus ntawm cov pa oxygen refilled, titanium refined tube. TiO₂ film. Cov tshuaj fluoride yog concentrated nyob rau hauv cov zaj duab xis, ua rau ib tug uniform opaque etching . 4. Rau PFA cov cua sov, cov tsub zuj zuj ntawm cov kua nruab nrab ntawm lub substrate thiab txheej ua rau lub tsim ntawm cov hlwv nyob rau hauv lub hlwv tom qab rov ua cua sov, raws li alkali detergent tsis muaj peev xwm ua kom tag nrho ntws tawm ntawm cov khawb me me {{3} rossible, tube; silicon dioxide crystal nto yog ceev los ntawm residual alkaline ntxuav kua uas yog daig los ntawm biofilm. Twj zaus txo kom txuag tau lub zog, lim dej thaiv, cov kav xa dej ib feem ntawm qhov thaiv, lossis qhov tsim tsis tsim nyog me me-inch ceg tsim yog feem ntau ua rau qis qis tshaj tawm. Tus neeg teb xov tooj tsuas yog saib xyuas cov nyhuv tu tsis tiav nyob rau theem tom qab, thaum qhov chaw nkaum hauv cheeb tsam corrosion twb tau tsim rau lub hlis. ## 2. Mechanism ntawm kev puas tsuaj tshwm sim los ntawm qhov siab tshaj plaws CIP ntws nrawm nrawm nrawm thiab tshem tawm cov khoom hauv nruab nrab ua rau cov neeg kho tshuab yaig thiab cuam tshuam rau ntawm phab ntsa ntawm lub raj thaum qhov ntws nrawm tshaj qhov txwv kev nyab xeeb sab saud . - Cov cua kub cua sov (316 stainless hlau) yog cov hlau tsis zoo / Grade. hnav-resistant. Cov txheej tiv thaiv tsis tu ncua tev tawm los ntawm lub sij hawm ntev high-speed particle scouring, nthuav tawm cov liab qab hlau matrix mus rau qhov nruab nrab corrosive. Qhov kev puas tsuaj loj tshaj plaws yog welds nrog qhov tsis sib xws ntawm qhov chaw zoo nkauj, uas tsim cov strip-zoo li hnav fissures. - PFA-coated heaters: Cov fluoroplastic nto raug ntaus los ntawm cov tawv mycelium thiab inorganic hais nyob rau hauv lub siab tshaj tawm, uas ua rau tsim nyob rau hauv lub tsim ntawm tshiab sib sib zog nqus khawb thiab nthuav ntawm thawj khawb qhov dav. Cov txheej txheem no tseem ua kom cov hlwv delamination thiab tsim cov channel ntxiv rau alkali kua infiltration. - Quartz iav: Cov phab ntsa sab hauv thiab lub luj tshib yog raug rau cov kua dej nrawm nrawm, uas ua rau muaj qhov tsis pom ntawm qhov chaw microcracks thiab tiam ntawm kev cuam tshuam kev ntxhov siab. Nyob rau hauv lub tom ntej no txias-kub alternating thermal stress, lub fractures nthuav, ua rau lub rupture ntawm lub raj . 3. Standardized tswj thiab modulation ntawm tus tshaj tawm ntawm CIP txaus ### Kauj Ruam 1: Tsim kom muaj kev sib cuam tshuam nrog cov khoom ntws ruaj khov uas yog cov khoom siv raws li cov khoom siv sib txawv ntawm qhov sib txawv ntawm cov twj tso kua mis kev khiav hauj lwm cov twj tso kua mis, thiab cov twj tso kua mis sib txawv ntawm cov twj tso kua mis lub twj tso kua mis. cov khoom siv cua sov tube, thiab tiv thaiv kev hloov kho zaus ntawm kev ceev. ### Kauj Ruam 2: Tshem tawm ntawm qhov chaw tsis muaj zog uas tsis tuaj yeem nkag mus rau tus qauv ntws Hloov kho mob 90℃lub luj tshib rau hauv lub luj tshib nkhaus loj thiab sib txuas nrog cov kav dej me me rau cov raj ntim hauv qab thiab cov ceg qis qis kom lav cov khoom zoo sib xws. ### Kauj Ruam 3: Txo cov abrasive particle load ntawm qhov chaw Teeb tsa ntau theem pem hauv ntej cov ntxaij lim dej rau cov voj voog ncig thiab ntxuav cov ntxaij lim dej txhua qhov kev hloov pauv kom tiv thaiv kev nkag mus ntawm cov khoom siv hluav taws xob nrawm nrawm. ### Kauj Ruam 4: Kev tshuaj xyuas cov raj xa dej niaj hnub thiab ntsuas qhov ntsuas ntsuas kom tsis txhob ntws tawm qhov sib txawv, ntsuas cov ntsuas ntsuas txhua hli thiab txheeb xyuas cov xwm txheej ntawm cov kav dej ntsuas, lim dej, thiab lub valve ib nrab-qhib thaum lub sij hawm hloov kho peb lub hlis twg . 4. Cov cai rau kev pov tseg ntawm cov dej tsis huv hauv lub sijhawm ntev uas tau ua tiav. poob qis dua, cov kauj ruam hauv qab no yuav tsum tau ua: ncua lub sijhawm tuav rau alkali ntxuav, qhia lub sijhawm ua haujlwm siab ntawm cov mem tes flushing hauv txhua pawg kom tshem tawm cov khoom siv biofilm, thiab txhim kho lub twj tso kua mis zaus kom ua tiav cov txheej txheem ntau yam thaum lub sij hawm kaw tom ntej no . 2. Yog tias qhov khiav ceev tsis tu ncua ntau tshaj qhov siab tshaj qhov nruab nrab ntawm lub twj tso kua mis, tam sim ntawd txo cov ntsiab lus ntawm kev ruaj ntseg twj tso kua mis, tam sim ntawd. txhim kho cov dej ntws tsis zoo ntawm lub luj tshib kom txo tau qhov cuam tshuam ntawm cov kua dej . 3. Txhawm rau tiv thaiv kev hloov pauv siab-low flow compound puas tsuaj rau cov cua sov, nws yog ib qho tsim nyog yuav tsum tau kuaj xyuas cov raj xa dej thiab lub twj tso kua mis impeller, nrog rau kev daws teeb meem flowmeter tsis ua haujlwm. Lub flow velocity yog unstable nrog ib tug tseem ceeb fluctuation. ## Cov ntsiab lus tseem ceeb Cov kev pabcuam lub neej ntawm cov raj cua sov yog cuam tshuam los ntawm kev khiav nrawm ntawm CIP. Tsis txaus txaus ua rau biofilm deposition thiab localized tshuaj corrosion, thaum ntau txaus ua rau txhua yam attrition thiab structural qaug zog puas. Ib qho yooj yim, tus nqi qis tus txheej txheem optimization lub tswv yim yog los tswj qhov nrawm ntawm phab ntsa ntws nyob rau hauv cov khoom tshwj xeeb kev nyab xeeb lub sijhawm. Txoj hauv kev no tuaj yeem txhim kho cov nyhuv tu ib txhij thiab ncua qhov pib ntawm txhua hom cua sov raj corrosion tsis ua haujlwm.