17. Saib xyuas thiab kho cov tswv yim
Q1: Cov kev saib xyuas ib txwm ua li cas Q355B piping xav tau?
A1: Q355B Piping Systems Yuav tsum muaj kev tswj hwm kev pab kom ntseeg tau ntev- sij hawm kev ntseeg tau. Kev kuaj xyuas txhua xyoo yuav tsum kuaj xyuas rau kev kho mob hauv corrosion sab nraud, kev puas tsuaj txhua zaus, thiab txhawb kev ncaj ncees. Ultrasonic thickness ntsuas ntawm 2 {{{{{}}}}}}}}}} arta 5 xyoo sib kis ntsuas phab ntsa thinning phab ntsa thinning hauv cov kev pabcuam corrosive. Flange pob qij txha regici-} torquing, tshwj xeeb tshaj yog tom qab lub voj voog thermal. Kev tshuaj xyuas sab hauv uas siv cov koob yees duab lossis npua ntsuas kev xeb thiab cov nyiaj tso rau hauv cov piping. Txoj kev qoj ib ce kom tsis txhob qaug dab peg hauv cov ntu tsis tshua muaj. Rwb thaiv tsev yuav tsum tau khaws cia qhuav thiab khov kho kom tiv thaiv corrosion hauv qab rwb thaiv tsev (cui). Cov ntaub ntawv saib xyuas cov ntaub ntawv khaws tseg tseg tsis tshua muaj kev pab cuam lub neej uas tseem tshuav. Cov txheej txheem tseem ceeb yuav xav tau kev soj ntsuam online nrog kev ua haujlwm corrosion lossis kev ntsuas ntsuas rau kev ntsuas kev kawm tiag tiag.
Q2: Dab tsi yog cov txheej txheem kho tau zoo ib txwm rau corroded q355b kav?
A2: Muaj ntau txoj kev kho cov qauv nyob hauv Q355B kav nyob ntawm qhov mob hnyav. Rau cov pittingized (<20% wall loss), weld deposition repairs restore material thickness using compatible electrodes. Full-encirclement split sleeves provide structural reinforcement for more extensive damage. Composite repair systems (fiberglass/epoxy wraps) offer temporary fixes until permanent repairs can be scheduled. For through-wall leaks, bolted clamp-on repair sleeves provide immediate sealing. Hot tapping allows repairs without system shutdown in critical services. Replacement of severely corroded sections (typically >50% poob) feem ntau muaj kev lag luam ntau dua li rov kho dua. Txhua yam kev kho yuav tsum ua raws li PCC-2 cov lus qhia thiab ua yeeb yam cov neeg ua haujlwm tsim nyog nrog cov ntaub ntawv tsim nyog.
Q3: Yuav ua li cas cov dej xau hauv q355b piping yuav hais?
A3: Cov lus teb yog nyob ntawm seb hom kua dej, siab, thiab qhov chaw nyob. Cov dej xau me me nyob rau hauv tsis- Cov tshuab tsim kev phom sij tuaj yeem muaj nrog ib ntus kom txog thaum tau txais kev npaj kom txog thaum npaj shutdowns. Muaj teeb meem lossis siab - siab} cov dej xau yuav tsum tau muaj kev sib cais tam sim ntawd thiab kev nyab xeeb. Cov kev kho kho mob mus zog yuav tsum tshawb xyuas lub hauv paus ua rau - Txawm yog cov khoom siv kho tshuab, lossis khoom puas yooj yim. Kev kho vaj weld yuav tsum tshem tawm cov khoom siv uas tsis zoo thiab txuas ntxiv tsawg kawg 50mm dhau ntawm thaj chaw cuam tshuam. Tshaj tawm -}}}}}}}}}}}}}}} hydr hydrostostat kuaj ntawm 1.5 zaug ua haujlwm siab rau tsawg kawg 30 feeb. Rau cov xau dej rov qab hauv cov chaw tshwj xeeb, xav txog cov khoom hloov kho lossis cov qauv tsim dua li rov kho dua. Txhua qhov xwm txheej hnyav yuav tsum tau sau cia nrog cov duab thiab kev txheeb xyuas metall tsis zoo thaum tsim nyog.
Q4: Cov kev coj ua zoo tshaj plaws rau cov yeeb nkab txhawb kev txij nkawm?
A4: cov roj hmab txhawb nqa kom ua kom cov txheej txheem ua kom nruj thiab thauj khoom. Kev tshuaj xyuas txhua xyoo yuav tsum tau txheeb xyuas kev txhawb nqa kev ua haujlwm ntxiv txhua xyoo- Kev kuaj rau cov chais khov, dhau}}} nrawm dua. Corrosion ntawm kev txhawb nqa kev cuam tshuam yuav tsum tau saib xyuas sai li ntau dua li cov yeeb nkab hluav taws xob. Kev ntsuas cov tshuaj ntsuam xyuas Springs yog li ntawm 10% ntawm cov qauv tsim thau khoom {{} Kev rov qab siv dua lossis hloov pauv sab nraud qhov no. Kev Hloov Kho Cov Hloov Kho yuav tsum tau ua rau suav nrog tus account rau kev hloov chaw thau khoom cov kev mob {9} Tsis txhob muaj kev txwv daws kev txhawb nqa. Saib xyuas tshwj xeeb yog xav tau rau high- kub nruab qhov twg kev txhawb nqa kev ua haujlwm yog qhov tseem ceeb rau kev tswj hluav taws xob nthuav dav. Cov ntaub ntawv cov ntaub ntawv ntawm cov kev txhawb nqa cov mob txhawb kev soj ntsuam kev ntsuas thiab kev npaj kho yav dhau los.
Q5: Yuav ua li cas thiaj li muaj kev soj ntsuam lub neej zoo Q35b cov yeeb nkab hloov cov tswv yim?
A5: Cov kev ntsuam xyuas lub neej nyob ntxiv ua ke kev tshuaj xyuas cov ntaub ntawv nrog kev tshawb xyuas engineering kom ua kom tiav sijhawm. Corrosion tus nqi suav raws li ultrasonic thickness ntsuas qhov project thaum tsawg kawg nkaus yuav tau mus txog. Skacture mechanicate tsom xam screen screen - zoo li tsis xws luag los txiav txim siab tseem ceeb heev. Creep lub neej kev ntsuas yog qhov tseem ceeb rau high- kub cov kev pabcuam ua haujlwm saum toj tshaj 350 degree. Kev pheej hmoo -}}} Ua Ntej Kev Tshuaj Ntsuam Xyuas Ua Ntej Cov Khoom Siv Ua Ntej kom muaj kev kub siab {9 {} lub txim. Qoj - {12} {579 / ASME}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} 8) Txheeb xyuas yog tias cov khoom siv tsis muaj kev nyab xeeb. Cov ntaub ntawv no {{18 {}}} diven kom dhau kev hloov chaw ua haujlwm thaum tiv thaiv kev ua tsis tau zoo ntxiv piv rau cov tswv yim hloov pauv ruaj khov.
