Ua kom tiav Technical Specification rau Installation thiab Retrofit ntawm 316L Stainless hlau cua sov Tubes

# Cov Kev Qhia Tshwj Xeeb rau Kev Txhim Kho thiab Retrofit ntawm 316L Stainless Steel Heating Tubes ## Yuav Tsum Tau Siv Cov Khoom Sib Tw thiab Ua Ntej-Kev Tshawb Fawb Txhawm rau tiv thaiv galvanic corrosion tshwm sim los ntawm kev sib xyaw carbon steel, tag nrho cov raj lub cev, flanges, txuas cov kav dej, thiab cov khoom siv vuam yuav tsum tau tsim los ntawm 316L stainless hlau. Ua ntej kev teeb tsa, lub Hoobkas passivation soj ntsuam cov ntaub ntawv thiab cov ntaub ntawv raw cov ntaub ntawv spectral xeem yuav tsum tau tshuaj xyuas tag nrho. Phab ntsa thickness kam rau ua tiav ntawm cov khoom siv ua tiav yog khaws cia ntawm ± 5%; cov yeeb nkab ntu nrog cov phab ntsa hauv zos thinning uas tshaj 10% ntawm nominal thickness yog tsis lees paub. Qhov saum npoo qhov tseem ceeb ntawm cov khoom noj khoom haus -passivation txheej yuav tsum yog cov nyiaj tsis zoo- grey xim, tsis muaj hlau liab, xeb me ntsis, lossis cov seem welding oxidation scale. Rau lub hom phiaj ntawm kev sib cais thiab sealing, tag nrho cov gaskets yuav tsum yog PTFE thiab yuav tsum tau sib phim nrog stainless hlau flanges. Roj hmab gaskets uas raug detachment thiab aging yog tsis tso cai nyob rau hauv ntev - lub sij hawm fermentation ua hauj lwm tej yam kev mob. ## Kev Tsim Kho Cov Qauv rau On-Qhov Chaw Txhim Kho thiab Kev Txhim Kho ntawm Vuam thiab Polishing Txais tag nrho argon rov qab tiv thaiv vuam rau txhua lub pob tw welds thiab ceg welds los tiv thaiv kev sib tsoo ntawm kev sib tsoo thiab sab hauv vuam oxidation. Welders yuav tsum muaj daim ntawv pov thawj zoo stainless hlau vuam siv tau. Tom qab welding, tag nrho cov welds yuav tsum tau mechanically hauv av thiab polished los tsim ib tug seamless arc hloov ntawm lub weld thiab cov yeeb nkab lub cev, tsis muaj seem pits, undercuts, tawg, los yog dub oxide txheej. Ua qhov thib ob hauv zos pickling thiab passivation ntawm qhov chaw vuam tom qab vuam siv los kho cov chromium tiv thaiv{18}}nplua nuj passive zaj duab xis uas raug puas los ntawm qhov kub{19}} vuam kub. Ib nrab passivation yog txwv tsis pub nyob rau hauv tsis muaj tag nrho cov kev pab cuam ntawm weld nto. ## Mechanical Installation Layout and Anti-Corrosion Structural Requirements Qhov tsawg kawg nkaus installation inclination ntawm raj bundles yog 12 degree, thiab nws yog advisable siv 13℃rau tshiab installation tej yaam num. Tsim kom muaj kev ywj pheej auxiliary tso tawm ceg ntawm qhov siab tshaj plaws ntawm txhua pab pawg ntawm cov cua sov raj kom tag nrho cov pa roj carbon monoxide, yog li tshem tawm cov cua sov hauv zos thiab weld pitting tshwm sim los ntawm cov hnab tshos huab cua. Nyob rau hauv cov xwm txheej uas cov pa roj carbon steel txhawb nqa thav duab tsis tuaj yeem zam tau, nws yog qhov yuav tsum tau ua kom huv si PTFE cais strips ntawm txhua qhov chaw sib cuag ntawm cov hlua khi thiab cov hlua khi kom tiv thaiv galvanic corrosion raws. Txhawm rau tiv thaiv kev nruj extrusion thiab kev sib tsoo nyuaj thaum lub sij hawm hoisting, tsuas yog cov nylon nylon slings raug tso cai rau lub disassembly thiab kev thauj mus los ntawm lub raj bundles. Tuav ib qho txaus ntawm qhov chaw overhaul nyob ib ncig ntawm lub voj voog cua sov kom ua rau offline phab ntsa thickness kuaj thiab disassembly passivation thaum kho tom ntej. ## Kev hloov pauv yuav tsum tau txhawb nqa los ntawm CIP Pipeline Nruab qhov tshwj xeeb kub sib cuam tshuam sensors ntawm alkali kua Circuit Court thiab tswj kev ywj pheej cais alkali ntxuav thiab kua qaub descaling ncig kav dej thaum lub sij hawm retrofit. Lub zog cua sov yuav tsum tau txiav tawm los ntawm kev sib cuam tshuam thaum cov kua alkali kub tshaj 60 degree. Ob lub tswb ceeb toom, ob qho tib si pom thiab hnov, yuav tsum tau teeb tsa. Txhim kho qhov dej ntws tawm ntawm qhov ntsuas - thaj chaw muaj kev sib tw los ntawm kev nce tus nqi ntawm cov dej ntws thiab ua kom zoo dua cov raj xa dej kom txo tau cov fab tuag ntawm cov welds thiab lub raj ntim hauv qab. Muab cov chaw nres nkoj piv txwv los pab txhawb qhov tiag - lub sijhawm tshawb pom cov tshuaj chloride ions hauv cov kav dej nruab nrab noj thaum lub sijhawm kho cov tank loj. ## Standards for Electrical System Transformation Matching Configure heating power regulators to support a safe surface power density range of 1.0–1.5 W/cm² and secure the upper power limit to prevent over-power operation, which accelerates thermal stress damage to welds. Ua kom lub tswb tsis siv neeg txo hwj chim thaum lub tso pa tawm los ntawm kev sib txuas cov cua sov tswj module mus rau alkali kub interlock thiab tso pa tawm xyuas qhov system. Txhawm rau tiv thaiv kev kub ntxhov hauv cheeb tsam, nws raug nquahu kom txhua pab pawg ntawm cov khoom siv hluav taws xob cua sov yuav tsum tau nruab nrog kev tiv thaiv kev tiv thaiv hluav taws xob ntau dhau. ## Post-Txheej Txheem Txais Kev Xeem Yam Yuav Tsum Tau Ua 1. Cov phab ntsa tuab ntawm tag nrho cov raj sib dhos tau raug txheeb xyuas los ntawm kev kuaj ultrasonic puv -scanning phab ntsa thickness test. 2. Hydraulic siab nruj ntsuas rau 30 feeb ntawm 1.2 npaug ntawm kev tsim ua haujlwm siab, tsis muaj lub siab poob los yog kua seepage ntawm cov ntaub ntawv pov thawj pom tau tias muaj peev xwm dhau los ntawm - pom tseeb ua kom tiav cov kev tiv thaiv zaj duab xis 4. Simulation sim kom paub meej tias lub zog ceev- tawm thiab lub tswb teb ntawm cov kua alkali dhau -kub interlock 5. Kev ntsuas kev ua haujlwm tsis tu ncua ntawm cov pa ua haujlwm kom paub tseeb tias tsis muaj roj txuas mus ntxiv ntawm cov ntsiab lus siab ntawm lub raj ntim 6. Ua ib qho kev ua kom sov rau peb lub zog {{56}. Kev hloov pauv tau khaws cia ntawm qhov siab tshaj plaws ntawm ± 5%. ## Kev Hloov Kho rau Cov Qauv Tshaj Tawm-Retrofit Operation and Maintenance Matching Kho lub voj voog txij nkawm tom qab kev teeb tsa lossis kho dua tshiab. Rau siab -chloride nruab nrab cov kab ntau lawm, ua cov phab ntsa tuab tshuaj xyuas txhua ob lub hlis. Ua raws li peb lub hlis twg lub teeb pickling passivation es tsis yog ib nrab -kev kho mob offline txhua xyoo kom ntseeg tau tias cov yeeb yaj kiab tsis ruaj khov.. Kho CIP qhov kev pab cuam kom ntev lub sij hawm ntawm cov dej ntshiab ntws tawm tom qab ntxuav alkali thiab nce qhov zaus ntawm txhua hli hauv online acid ncig descaling los tiv thaiv kev sib sau ntawm cov organic ntom ntom. Thov xyuas kom meej tias tag nrho cov kev teeb tsa kev hloov pauv, cov ntaub ntawv xeem, thiab cov ntaub ntawv passivation raug kaw rau hauv tag nrho -lub neej- cov ntaub ntawv lub voj voog los pab GMP thiab kev soj ntsuam kev nyab xeeb. ## Cov Cwj Pwm Txwv Tsis Pub Siv Hauv Kev Txhim Kho thiab Kev Txhim Kho 1. Muab cov pa roj carbon steel yeeb nkab fittings, bolts, thiab kev txhawb nqa yam tsis muaj kev sib cais PTFE . 2. Tshem tawm kev siv cov argon rov qab tiv thaiv thaum vuam thiab tawm ntawm cov oxidised weld nto unpolished. 3. Cov pa tsis zoo yog qhov tshwm sim ntawm kev txhim kho hollow hauv cov tube ntau dua. 12℃. 4. Txhawm rau txhim kho kev ua haujlwm kom zoo, tshem tawm cov alkali ntxuav qhov kub thiab txias sib cuam tshuam. 5. Siv cov txhuam hlau thiab cov hlau txhuam txhuam los ntxuav lossis ua kom zoo dua stainless hlau raj qhov chaw. 6. Tshem tawm cov kev kho mob thib ob hauv zos passivation tom qab ntawm - qhov chaw vuam siv. ## Cov ntsiab lus tseem ceeb ntawm kev tswj hwm lub hom phiaj ntawm kev teeb tsa thiab rov ua dua ntawm 316L stainless hlau cua sov raj yog los tiv thaiv chloride-induced weld pitting thiab tiv thaiv chromium- nplua nuj zaj duab xis. Qhov no yog ua tiav los ntawm cov kev cai nruj heev txog cov khoom sib xws, vuam polishing qauv, raj bundle inclination layout, alkali kub interlock configuration, thiab tom qab-kev kho mob passivation. Kev ua tiav ntawm cov lus qhia tau hais tseg saum toj no tuaj yeem ua kom muaj txiaj ntsig zoo rau kev pabcuam lub neej ntawm stainless hlau cua sov raj hauv cov chaw tsim khoom fermentation, stabilize ntev -lub sij hawm cua sov efficiency, thiab tshem tawm cov txheej txheem corrosion zais kev phom sij qhia thaum siv thiab kho dua tshiab.