Kev daws teeb meem Phau Ntawv Qhia Txog Kev Ua Tsis Zoo ntawm Plaub Hom Kev Tiv Thaiv -Corrosion Heating Tubes hauv Kab Fermentation

# Phau Ntawv Qhia Teeb Meem Txog Kev Ua Phem Ntawm Plaub Hom Kev Tiv Thaiv -Corrosion Heating Tubes nyob rau hauv Fermentation Lines Common Fault Diagnostic and Solutions for 316L Stainless Steel Heating Tubes # Fault 1: Localized xeb thaj ua rau thaj thiab pitting corrosion ntawm cov yeeb nkab nto Qhov nruab nrab vim chloride ion pp concentration ntau tshaj li 50 fault. Cov zaj duab xis passive raug puas tsuaj thaum lub alkaline tu kub tshaj 60 degree. Cov yeeb yaj kiab dej uas muaj nyob hauv qab yog nyob tom qab thaum lub sijhawm khaws cia vim tsis tiav ziab. Galvanic corrosion yog induced los ntawm unsolated carbon steel txhawb. Cov kauj ruam rau kev daws teeb meem 1. Ua kom tiav ultrasonic phab ntsa thickness scan los txiav txim qhov tob ntawm corrosion; cais cov hlua khi uas hnyav heev rau kev hloov pauv . 2. Hloov kho cov khoom raw ua ntej- cov txheej txheem pom kom txo cov ntsiab lus chloride; calibrate lub alkali kub interlock sensor kom ntseeg tau tias nws cia li tawm ntawm 60℃. 3. Ua lub zos pickling thiab passivation ntawm corroded cheeb tsam; nruab PTFE cais strips ntawm carbon steel brackets thiab raj bundles . 4. Txhim kho cov txheej txheem tiv thaiv dormant los ntawm kev ziab kom zoo rau sab hauv thiab sab nrauv ntawm lub raj nrog cua qhuav ua ntej kaw nws. Cov kev tiv thaiv muaj xws li txo qhov zaus ntawm phab ntsa tuab tshuaj ntsuam xyuas rau ob-ib hlis, ncua sij hawm rau cov dej tshiab ntws tawm tom qab ntxuav alkaline, thiab zam kev sib xyaw ntawm cov hlau tsis muaj steel thiab carbon hlau yam tsis muaj kev sib cais. # Fault 2: Lub tshav kub pauv kev ua haujlwm tau txo qis sai sai, thiab lub zog cua sov nce tsis tu ncua. Qhov kev ua txhaum no tshwm sim hauv cov khoom sib xyaw ntawm cov organic tuab ntawm qhov chaw tuag, cov yeeb yaj kiab tsis tu ncua npog cov yeeb nkab phab ntsa vim qhov tso pa tsis txaus, thiab ib feem ntawm cov kab khiav tau raug thaiv los ntawm thermal stress deformation. Cov kauj ruam rau kev daws teeb meem 1. Ua kom lub voj voog tsis siv neeg CIP pickling kom yaj cov organic deposits; Yog tias qhov ntsuas hnyav hnyav, rov ua dua ob zaug. 2. Cov kav xa dej kom huv si kom rov ua kom cov pa tawm kom zoo thiab tshawb xyuas cov pa tawm ntawm qhov chaw siab ntawm lub raj ntim rau kev txhaws. 3. Yog tias lub raj ntim cov khoom siv tsis txaus, kho nws kom tsawg kawg yog 12℃. Kev tiv thaiv kev tiv thaiv muaj xws li kev tshem tawm cov kua qaub hauv online txhua hli, ntxiv cov ceg txuas ntxiv rau txhua pab pawg ntawm cov raj cua sov, thiab kev txwv ntawm ib lub voj voog ntau lawm mus txog 30 hnub. # Fault 3: Cov kua dej tawm ntawm qhov chaw vuam Ntev ntev - lub sij hawm chloride pitting yog qhov tshwm sim ntawm qhov txhaum uas nthuav mus rau hauv - qhov. Cov pob txha me me sab hauv yog sab laug los ntawm qhov tsis tsim nyog argon shield welding, thiab tawg propagation yog nrawm los ntawm thermal stress los ntawm qhov kub thiab txias. Cov kauj ruam rau kev daws teeb meem 1. Tam sim ntawd tshem tawm cov cua sov thiab cov kab hluav taws xob kom cais cov kab hluav taws xob tsis zoo; Tshem tawm tag nrho cov nruab nrab kom tsis txhob muaj kuab paug xeb. 2. Cov pa paug me me: tshem lub raj ntim, zom cov corroded welds, thiab rov-weld nrog tag nrho argon rov qab tiv thaiv. Tom qab ntawd, ua cov passivation theem nrab. 3. Tag nrho lub raj ntim yuav tsum tau hloov ncaj qha vim yog qhov hnyav dhau los ntawm - phab ntsa corrosion. Kev tiv thaiv kev ntsuas: txwv qhov cua sov kom qis dua 0.8℃/ min thaum lub sij hawm teeb tsa kom txo tau qhov kev ntxhov siab thermal; tswj tag nrho weld refining thiab post-weld passivation. Kev Tshawb Fawb Kev Ua Phem thiab Kev daws rau Ntshiab Titanium Cua Sov Tubes # Fault 1: Lub raj saum npoo yog npog hauv txheej matte etching uas yog milky dawb. Cov tshuaj fluoride ions tau ntxiv rau qhov nruab nrab lossis ntxuav cov kua dej vim qhov ua txhaum; tus kheej- kho lub peev xwm ntawm cov yeeb yaj kiab passivation tsis muaj zog los ntawm lub sijhawm ntev - cov pa oxygen tsawg hauv cov dej ntws. Cov kauj ruam rau kev daws teeb meem 1. Tam sim ntawd kaw cov khoom siv fluoride raw khoom noj khoom noj thaum pom qhov zoo ntawm cov ntsiab lus fluorine ntawm qhov ntsuas nruab nrab thiab cov dej huv huv. 2. Ua 30-feeb paim pa- cov dej nplua nuj nrog cov pa oxygen ntau tshaj 8 mg/L kom rov qab tau cov phab ntsa compact TiO₂ 3 etch ntawm cov yeeb yaj kiab ntawm cov ntaub ntawv nyias nyias ntawm TiO₂ 3{3} kev sib sib zog nqus etching yuav tsum tau hloov tag nrho ntawm lub raj ntim, vim tsis muaj corrosion tsis tuaj yeem raug tshem tawm. Kev tiv thaiv kev ntsuas suav nrog kev teeb tsa ntawm ob lub fluoride interlock detectors ntawm cov kav xa dej, kev saib xyuas ntawm kev ua haujlwm aeration system thaum lub sij hawm tag nrho CIP tu cycles, thiab kev sib cais nruj ntawm cov tshuaj fluoride chaw cia khoom. # Fault 2: Fermentation broth yog paug los ntawm xeb sediment uas ntog los ntawm kev txhawb nqa txoj hauj lwm Kev laus los yog tsis muaj PTFE cais casings yog qhov tshwm sim ntawm qhov txhaum; galvanic corrosion yog pib los ntawm kev sib cuag ncaj qha ntawm titanium raj thiab carbon steel ncej. Cov kauj ruam rau kev daws teeb meem 1. Txhawm rau tshem tawm cov seem uas tsis muaj xeb, tshem tawm cov cua sov thiab rov ua kom lub tank thiab cov kav dej huv huv . 2. Tshem tawm cov hlua khi, hloov txhua lub tes tsho thiab cov gaskets, thiab ua kom tag nrho cov pa roj carbon hlau sib cuag nrog cov ntaub ntawv PTFE tuab. Kev Tiv Thaiv Kev Tiv Thaiv: Tshawb xyuas cov khoom siv cais tawm txhua lub hlis twg thiab siv cov nylon slings nkaus xwb thaum lub sij hawm disassembly kom tsis txhob khawb cov txheej cais. # Fault 3: Lub peev xwm hluav taws xob hluav taws xob tseem nyob qis dua cov qauv tsim nyog Qhov txhaum ua rau loj- thaj tsam tawv khawb uas tshuav los ntawm cov cuab yeej kho hlau, tsis muaj cua txaus thaum lub sij hawm ntev -CIP cycles, thiab ntev -lub sij hawm tsis siv neeg cia tsis muaj oxygen- nplua nuj dej tu. Cov kauj ruam rau kev daws teeb meem 1. Ua qhov kev ntsuam xyuas pom tag nrho ntawm qhov chaw txhawm rau txheeb xyuas cov cheeb tsam uas khawb tau faib tawm . 2. Siv cov kev kho mob offline txhim kho passivation thiab txwv qhov zaus ntawm kev tshem tawm kom txo tau txoj kev pheej hmoo ntawm cov khoom khawb. Kev tiv thaiv kev ntsuas suav nrog cov txheej txheem ntawm kev kho dua tshiab rau cov khoom siv nylon thiab cov yas, nrog rau kev ua haujlwm ntawm cov pa oxygen- nplua nuj dej ncig ua ntej ntev - lub sij hawm idle sealing. Quartz Anti-Corrosion Heating Tubes: Kev Ntsuas Kev Ntsuas thiab Kev Ntsuas # Fault 1: Qhov nruab nrab muaj cov iav microparticles thiab cov raj ruptures Cov cua kub siab tshaj 0.5℃/ min vim yog qhov txhaum, ua rau muaj kev kub ntxhov hnyav. Kev vibration hnyav yog tsim los ntawm xoob poob siab- nqus cov pawm, thiab cov khaubncaws sab nraud povtseg yog tsim los ntawm cov dej cawv alkali tsis tuaj yeem. Cov kauj ruam rau kev daws teeb meem 1. Tam sim ntawd txiav tag nrho cov khoom siv hluav taws xob thiab cov khoom siv ncig; Tshem tawm tag nrho lub tank nruab nrab thiab muab pov tseg cov kua paug kom huv si . 2. Nruab ib lub raj quartz tshiab nrog cov txheej txheem ntawm cov roj hmab tuab tuab; calibrate lub ntsuas kub nce siab tswj kom tswj lub hau kub ceev ntawm 0.4℃/ min. 3. Yog tias tsis ua haujlwm, tshawb xyuas cov khoom siv sib cuam tshuam ntawm cov kav dej alkali thiab rov ua kom lub valve sib cuam tshuam. Kev tiv thaiv muaj xws li ua ob-ib lub lis piam kuaj lub teeb pom kev tawg, txwv tsis pub khiav ceev ntawm lub twj tso kua mis mus rau tsawg dua 0.6 m / s, thiab nruj me ntsis txwv tsis pub nkag ntawm cov kua alkaline mus rau hauv quartz cua sov loops. #2 Fault: Ib txheej translucent mus tas li uas ntim cov quartz sab nrauv phab ntsa Cov neeg kho tshuab kev cuam tshuam tsis ua haujlwm vim qhov ua txhaum, ua rau lub sijhawm ntev ntawm cov kua dej alkaline ntxuav nrog quartz nto. Cov kauj ruam rau kev daws teeb meem 1. Txhawm rau tshem tawm cov khoom seem ntawm cov alkali ntawm lub raj nto, circulate diluted acid. 2. Yog tias qhov kev tiv thaiv frosting ntau tshaj 30%, nws yog ib qho tsim nyog los hloov lub raj quartz, vim cov txheej txheej frosted yuav txuas ntxiv tsim biofilm thiab tsis tuaj yeem tshem tawm tag nrho. Kev tiv thaiv muaj xws li ua ib lub hlis sib cuam tshuam yuam kev kaw rau cov kav dej alkali thiab sib cais cov kua qaub thiab alkali muab cov kav dej nrog cov khoom siv sib cuam tshuam nyuaj. # Fault 3: Tube bundle vibration uas txawv txav thaum lub sij hawm ua hauj lwm Kev laus thiab elastic tsis ua hauj lwm ntawm kev poob siab{101}} absorbing rubber pads yog qhov tshwm sim ntawm qhov ua txhaum; lub raj xa dej nrawm nrawm dhau; thiab qhov ruaj khov clamping txhawb yog xoob. Cov kauj ruam rau kev daws teeb meem 1. Hloov tag nrho cov kev laus damping Cheebtsam nrog cov tshiab, tuab roj hmab gaskets thiab ruaj nrees fasten xoob kev them nyiaj yug bases . 2. Txo qhov khiav ceev thiab txo cov kev co ntawm cov kua cuam tshuam los ntawm kev kho lub twj tso kua mis zaus. Kev tiv thaiv muaj xws li hloov cov khoom siv rau kev poob siab txhua peb lub hlis thiab tso cov khoom siv quartz nyob deb ntawm qhov siab - vibration twj tso kua mis. Kev Tshawb Fawb Kev Ua Phem thiab Kev daws teeb meem rau PFA Coated Heaters # Fault 1: Yellow brittle ageing, blistering, and peeling of the coating The long-term medium temperatures over 95℃because of the fault; qhov txias txias{107}}kub hloov pauv yog qhov tshwm sim ntawm kev hla tus ncej- ntxuav qhov kev ua kom txias qeeb; thiab kev siv cov tshuaj tua kab mob siab -concentration hydrogen peroxide yog nquag. Cov kauj ruam rau kev daws teeb meem 1. Rov pib qhov kev pab cuam CIP los tswj lub 40-feeb qeeb txias tom qab siab{117}} kub tu; calibrate qhov kub thiab txias interlock sensor kom paub tseeb tias tsis siv neeg fais fab - tawm saum 95℃. 2. Txo qhov concentration ntawm hydrogen peroxide los ntawm 50% rau kev tua kab mob txhua hnub; Hloov cov cua sov nrog loj- thaj tsam flaking txheej ncaj qha; Kev kho hauv zos raug txwv. Cov kev tiv thaiv muaj xws li ua ob-kev tshuaj ntsuam xyuas txheej txheej txhua hli thiab txwv qhov kub ua haujlwm tsis tu ncua kom qis dua 90℃. # Fault 2: Cov pa roj carbon steel substrate raug nthuav tawm los ntawm kev nkag mus khawb High-cov ntsiab lus nyuaj abrasive hais raug tshem tawm hauv nruab nrab yog qhov tshwm sim ntawm qhov txhaum. Cov twj siv hlau yog siv los ntxuav cov nplais saum npoo, thiab cov raj xa dej ua ntej - lim cuam tshuam tsis ua haujlwm. Cov kauj ruam rau kev daws teeb meem 1. Qhib tus kheej - txheej txheem ntxuav ntawm cov kav dej hauv ntej lim; Hloov cov lim lim uas puas lawm los tiv thaiv kev nkag mus ntawm cov khoom tsis huv ntawm cov khoom siv abrasive{129}} Txhawm rau tiv thaiv corrosion thiab cov yas micro-particle shedding, tag nrho lub rhaub yuav tsum tau hloov yog tias qhov khawb nkag mus txog cov hlau substrate. Kev tiv thaiv kev tiv thaiv suav nrog kev teeb tsa ntawm ntau-theem precision khoom particle lim ntawm cov raj xa dej thiab txwv tsis pub siv cov sponges mos thiab qis- cov dej ntws tawm rau kev tu txhua hnub. # Fault 3: Kev ruaj khov tus nqi nrog kev siv hluav taws xob tas mus li Kev laus ntawm cov fluoroplastic txheej ua rau tsim cov txheej txheem thermal ua kom tuab dua, uas yog nrog los ntawm kev sib kis ntawm cov hlwv me me hla thaj chaw dav dav. Cov kauj ruam rau kev daws teeb meem 1. Ua kom pom qhov pom ntawm tag nrho cov txheej txheem txhawm rau txiav txim siab txog qhov kev tiv thaiv blister . 2. Npaj rau kev npaj hloov pauv yog tias thaj tsam blister tshaj li 5% ntawm tag nrho qhov chaw txhawm rau tswj kev txhim kho kev siv hluav taws xob. Zam kev ua haujlwm tas mus li - thauj khoom rau lub sijhawm ntev; tsim kom muaj ib hnub 2-teev qis- qhov kub thiab txias kaw kom txo qhov nro sab hauv ntawm txheej txheej. Cov txheej txheem txheej txheem rau Universal Fault Handling ntawm Txhua Lub Cuab Yeej Cuab Yeej 1. Kev rho tawm thaum muaj xwm txheej ceev Qhov tseem ceeb: Thaum muaj kev cuam tshuam, tawg, los yog muaj kab mob loj heev raug txheeb xyuas, tshem tawm cov cua sov tam sim ntawd thiab kaw lub inlet / qhov hluav taws xob li qub kom cais cov khoom siv tsis raug los ntawm cov khoom siv ua ntej ua ntej kev soj ntsuam cov qauv{146} Cov kab mob fermentation nruab nrab rau kev kuaj sim thiab cov ntaub ntawv ntsuam xyuas cov ntaub ntawv raws li daim ntawv pov thawj zoo . 3. Tom qab- tsis ua tiav kev soj ntsuam yuav tsum tau ua: Ua ntej kev tsim khoom raug rov pib dua, tag nrho cov khoom ntsuas kev lees paub zoo li qub (hydraulic nruj, kev sib txuas sib txuas, kev sib tw ua haujlwm tau zoo) yuav tsum ua kom tiav 14 qhov kev ua txhaum ntawm kev ua txhaum cai} Cov ntaub ntawv: suav nrog lub sijhawm ua txhaum cai, lub hauv paus ua rau, cov kauj ruam pov tseg, qhov hloov pauv, thiab kev tiv thaiv kev ua kom zoo tshaj plaws rau hauv tag nrho -cov ntaub ntawv lub neej ntawm cov cuab yeej. 5. Cov ntaub ntawv txhaum cai txhua hli: Sau cov ntsiab lus txhua hli ntawm qhov txhaum zaus ntawm txhua lub raj cua sov cov khoom siv, thiab kho qhov hloov kho tsis siv neeg lub voj voog me me. ntawm rov zoo tib yam tsis ua hauj lwm. Executive Summary Cov yam ntxwv ntawm cov khoom siv ntawm txhua hom cua sov raj txiav txim siab tshwj xeeb siab - zaus raug faults. Cov laj thawj tseem ceeb ntawm cov hlau tsis zoo yog cov tshuaj chloride pitting, scaling, thiab weld to. Fluoride etching thiab galvanic xeb sediment pollution yog thawj qhov ua txhaum ntawm titanium tube cores. Thermal shock rupture thiab alkali frosting yog ib qho tshwm sim hauv cov khoom siv quartz. PFA txheej cov cua sov tuaj yeem ua rau tsis ua haujlwm vim qhov siab -kub aging thiab abrasive nkag mus khawb khawb. Phau ntawv qhia txog kev daws teeb meem no muaj cov txheej txheem kev kuaj mob, cov txheej txheem pov tseg ib ntus, thiab kev tiv thaiv mus sij hawm ntev rau txhua qhov kev ua txhaum. Cov kev ntsuas no tuaj yeem txo cov kev poob qis, ua kom ruaj khov ua haujlwm tsis tu ncua ntawm cov cua sov cua sov, thiab ua kom cov khoom siv qis qis.