Hauv kev tsim cov khoom siv dej thiab cov kav dej, kev xaiv cov khoom siv kav dej ncaj qha cuam tshuam rau kev nyab xeeb ntawm dej thiab kev pabcuam lub neej. Galvanized steel kav, raws li cov khoom siv yeeb nkab, ib zaug tau siv dav hauv cov tsev nyob, cov kav dej hauv nroog, thiab cov kav dej hauv tsev. Txawm li cas los xij, nrog kev txhim kho txuas ntxiv ntawm cov qauv kev nyab xeeb dej haus, txawm tias cov kav dej galvanized tseem tsim nyog rau kev xa dej haus tau dhau los ua ib qho kev txhawj xeeb ntawm cov kws tshaj lij thiab cov neeg siv kawg.
Tsab ntawv xov xwm no muab cov kev tshuaj ntsuam xyuas seb cov kav dej galvanized puas haum rau cov dej haus, los ntawm cov kev xav ntawm cov yam ntxwv ntawm cov qauv, kev ua tau zoo, kev nyab xeeb kev nyab xeeb, cov teeb meem kev laus, thiab cov qauv siv engineering tam sim no.
I. Galvanized Steel Pipes yog dab tsi?
Galvanized steel kav yog carbon steel kav coated nrog ib txheej ntawm zinc nyob rau saum npoo los ntawm kub -dip galvanizing los yog electroplating. Lub luag haujlwm tseem ceeb ntawm zinc txheej yog los tiv thaiv kev sib cuag ncaj qha ntawm cov hlau substrate thiab dej los yog cua, yog li ua kom qeeb corrosion thiab ncua kev pab cuam lub neej ntawm cov yeeb nkab.
Raws li cov txheej txheem galvanizing, galvanized steel kav feem ntau muab faib ua ob hom:
Kub-Dip Galvanized Steel Pipes
Tsim los ntawm immersing steel kav rau hauv molten zinc, ua ib txheej hlau sib txuas rau steel substrate. Cov kav dej no muaj zog adhesion thiab kuj zoo corrosion kuj, thiab feem ntau yog siv rau hauv cov dej thiab cov kav dej, cov dej num hauv nroog, thiab kev tiv thaiv hluav taws.
Electro-Galvanized Steel Pipes
Ua los ntawm electrochemical deposition ntawm zinc ntawm cov yeeb nkab nto. Txawm hais tias lawv muaj qhov ci ntsa iab, zinc txheej yog nyias thiab muab kev tiv thaiv corrosion tsis muaj zog. Raws li qhov tshwm sim, tam sim no lawv tsis tshua muaj siv nyob rau hauv cov khoom siv dej.
II. Keeb kwm kev siv cov kav dej Galvanized hauv Cov Dej Haus Dej
Ua ntej xyoo 1980 thiab 1990s, galvanized steel kav yog qhov kev xaiv tseem ceeb rau kev tsim cov dej hauv Suav teb. Lawv qhov zoo muaj xws li:
• Lub zog muaj zog thiab muaj zog ua haujlwm siab
• Tsim nyog rau cov tsev siab -nce thiab cov dej hauv nroog
• Cov txheej txheem tsim kho kom paub tab
• Yooj yim threaded thiab flanged kev sib txuas dav siv los ntawm pab pawg tsim kho
• Cov nqi tswj tau zoo, tshwj xeeb tshaj yog ua ntej cov kav dej yas tau nrov
Raws li qhov tshwm sim, ntau lub zej zog cov neeg laus, cov chaw tsim khoom, thiab cov tsev ua haujlwm tseem siv cov kav dej galvanized rau kev xa dej haus niaj hnub no.
III. Cov teeb meem muaj peev xwm ntawm kev siv cov kav dej Galvanized rau cov dej haus
Txawm hais tias cov kav dej galvanized muaj lub zog muaj zog, lawv qhov ntev - siv sijhawm nthuav tawm qee qhov kev pheej hmoo los ntawm kev pom kev nyab xeeb ntawm cov dej haus niaj hnub no.
1. Kev laus thiab Peeling ntawm Zinc Txheej
Cov zinc txheej tsis yog txheej txheej tiv thaiv mus tas li. Nyob rau tib lub sijhawm, nws maj mam deteriorates vim yog yaj, oxygen, thiab kab mob hauv dej. Localized peeling yuav tshwm sim, nthuav tawm cov hlau substrate rau corrosion thiab ua rau xeb tsim.
Cov khoom siv corrosion nkag mus rau hauv dej tuaj yeem ua rau:
• Dej daj los yog huab
• Ua kom impurities
• Deterioration ntawm saj thiab sensory zoo
2. Kev Tiv Thaiv Thib Ob
Cov kav dej qub galvanized zoo li tsim cov nplai thiab xeb nodules ntawm cov phab ntsa sab hauv. Cov deposits no tuaj yeem nqus tau cov hlau hnyav, cov kab mob, thiab cov kuab paug organic, tsim cov kab mob hauv lub cev. Thaum cov dej ntws hloov pauv, cov pa phem no tuaj yeem tso rov qab rau hauv dej, ua rau muaj kuab paug thib ob.
3. Kev pheej hmoo ntawm Hnyav Hlau Leaching
Hauv thaj chaw uas muaj dej acidic me ntsis, cov zinc me me tuaj yeem yaj los ntawm txheej txheej. Ntev- kev noj dej ntev ntev nrog cov ntsiab lus zinc siab tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv, tshwj xeeb tshaj yog rau cov menyuam yaus thiab cov neeg laus.
IV. Cov Cai tam sim no thiab cov qauv hais txog cov kav dej galvanized rau cov dej haus
Nrog rau cov qauv kev nyiam huv ntawm cov dej haus uas muaj zog zuj zus tuaj, ntau lub tebchaws thiab cheeb tsam tau maj mam txwv lossis txwv tsis pub siv cov kav dej galvanized hauv cov kav dej uas tau tsim tshiab.
Nyob rau hauv Tuam Tshoj tam sim no cov khoom siv dej hauv tsev tsim cov cai, cov kav dej galvanized tsis pom zoo ua cov khoom siv rau cov kav dej hauv tsev. Hloov chaw, cov ntaub ntawv xws li cov kav hlau tsis muaj steel, nyias- cov kav hlau stainless hlau, PPR kav, PE kav, thiab cov kav tooj liab tau pom zoo.
Niaj hnub no, cov kav dej galvanized feem ntau yog siv hauv:
• Kev tiv thaiv hluav taws xob tiv thaiv dej
• Industrial circulating water systems
• Cov kab dej hauv nroog
• Tsis yog -cov kav dej siv tau
Hauv kev lag luam dej haus, cov kav dej galvanized feem ntau nyob hauv cov tes hauj lwm qub uas twb muaj lawm, thaum cov haujlwm tshiab tsis tshua tau txais lawv.
V. Cov kav dej Galvanized puas tseem siv tau rau cov dej haus?
Zuag qhia tag nrho, galvanized steel kav tseem txhim khu kev qha, tab sis los ntawm cov dej zoo thiab kev saib xyuas kev noj qab haus huv, lawv tsis haum rau ntev li - cov khoom siv dej haus.
Rau cov txheej txheem galvanized uas twb muaj lawm tseem ua haujlwm, cov hauv qab no yuav tsum tau soj ntsuam:
• Kev pab cuam lub neej: Tom qab siv ntau tshaj 10 xyoo, qhov kev pheej hmoo ntawm zinc txheej degradation nce ntau
• Cov txiaj ntsig kev ntsuas dej zoo: Kev saib xyuas tsis tu ncua ntawm cov hlau, zinc cov ntsiab lus, thiab turbidity
• Internal yeeb nkab tej yam kev mob: Kev soj ntsuam ntawm sab hauv corrosion los ntawm pipeline endoscopy
Yog tias pom cov dej tsis zoo lossis muaj kev cuam tshuam loj heev, nws raug nquahu kom maj mam kho thiab hloov cov kav dej nrog cov ntaub ntawv uas ua tau raws li cov qauv dej haus niaj hnub no.
VI. Trends nyob rau hauv zoo tagnrho haus dej yeeb ntaub ntawv
Nrog rau kev nce qib hauv cov khoom siv thev naus laus zis, cov kav dej haus tau hloov zuj zus mus rau kev nyab xeeb dua, muaj kev xeb ntau dua - tiv taus, thiab cov tshuaj ntxuav kom huv. Cov kev xaiv tseem ceeb tam sim no suav nrog:
• Nyias-cov kav hlau tsis muaj phab ntsa: Kev tu cev zoo, kev ua haujlwm ntev, thiab muaj zog corrosion kuj
• Khoom noj khoom haus- qib cov kav dej yas: xws li PPR thiab PE kav, uas muaj cov phab ntsa du thiab tiv taus scaling
• Cov kav dej tooj liab: Ib txwm muaj tshuaj tua kab mob thiab tsim nyog rau kev siv siab -kawg
Cov ntaub ntawv no ua tau zoo dua cov kav dej galvanized steel raws li kev nyiam huv, durability, thiab tu nqi.
VII. Xaus
Galvanized steel kav ib zaug tau ua lub luag haujlwm tseem ceeb hauv kev tsim cov dej hauv tsev. Txawm li cas los xij, raws li cov qauv kev nyab xeeb dej haus tau nce ntxiv, lawv cov kev txwv hauv kev siv dej haus tau dhau los ua pov thawj. Los ntawm txoj kev xav niaj hnub engineering, cov kav dej galvanized tsis yog qhov kev xaiv zoo tshaj plaws rau kev xa dej haus.
Rau cov dej haus tshiab, qhov tseem ceeb yuav tsum tau muab rau cov khoom siv yeeb nkab uas ua raws li cov qauv kev nyiam huv tam sim no. Rau cov laus galvanized yeeb nkab tes hauj lwm, maj mam hloov kho thiab hloov yuav tsum tau npaj raws li qhov tseeb tej yam kev mob kom muaj kev nyab xeeb thiab noj qab nyob zoo cov dej haus rau cov neeg siv.
Nyob rau hauv ib lub sijhawm uas cov peev txheej dej muaj txiaj ntsig ntau ntxiv thiab kev paub txog kev noj qab haus huv rau pej xeem tseem loj tuaj, kev xaiv cov khoom siv kav dej tsis yog kev txiav txim siab engineering xwb - nws yog ib qho teeb meem ntawm pej xeem kev noj qab haus huv thiab kev noj qab haus huv.
