Cov lus qhia ntxaws ntxaws rau daim ntawv thov ntawm Galvanized cov kav nkoj hauv kev thauj mus los ntawm cov kua dej hauv cov tshuaj hauv cov tshuaj.
Hauv kev lag luam tshuaj, kev thauj mus los cov kua uas muaj kev thauj khoom hauv cov roj yog cov thoob ntiaj teb kev tsim khoom txuas ntxiv. Cov cai tseem ceeb yuav muaj kev xa khoom ruaj khov, corrosion tsis kam, thiab kev txij nkawm tsawg. Galvanized rwb thaiv tsev, ua tsaug rau lub cev rwb thaiv tsev thiab cov tshuaj malalys muab los ntawm feem ntau tsis- cov kua roj heev. Thaum tuav lub zog ntawm cov hlau, lawv yog ib qho kev xaiv muaj nuj nqis rau daim ntawv thov no. The following details specific applications from four perspectives: application scenario classification, compatible fluid types, key selection requirements, and installation and maintenance tips.
1. Cov ntaub ntawv thov cov xwm txheej: tsom mus rau "ib qho" kua dej, tsis yog cov txheej txheem tseem ceeb
Cov tub ntxhais ntawm kev caij cov kua dej thauj khoom hauv cov kab kev lag luam tseem ceeb (xws li thauj khoom ntau heev, thiab siab {- kub molten salts). Galvanized round pipes yog feem ntau siv nyob rau hauv peb qhov xwm txheej nram qab no:
1. Cua txias ncig cov dej dej: Qhov "cua txias Lifeline" ntawm cov khoom siv tshuaj lom neeg
Hauv cov khoom siv tshuaj lom ntau zog, cov khoom siv tseem ceeb xws li reactors, kev sib pauv cua sov, thiab compressors tsim kev kub ntxhov. Cov cua sov no yuav tsum tau muab tshem tawm los ntawm cov dej ntws los tswj kev ua haujlwm ruaj khov. Galvanized round cov kav dej yog cov khoom siv yeeb nkab nrov rau cov kab ke no, nrog cov ntawv thov tshwj xeeb suav nrog:
Khoom Siv Cua Txias Txhuas Txhuas Cov kav dej: Cov no yog cov "cov kav dej txias txuas rau cov khoom siv dej txias rau cov roj av thiab cov pas dej txias rau cov pa hluav taws xob. Cov kav dej no yuav raug pib nquag thiab nres (nyob ntawm cov khoom siv ntau lawm) thiab muaj kev sib cuag nrog dej tas li. Lub galvanized txheej tiv thaiv xeb thiab cov ntsuas (uas txo cov kev hloov kho tshav kub) rau ntawm cov yeeb nkab phab ntsa. Piv rau cov txiv kav dej dub dub, kev hloov cua sov tuaj yeem tswj tau rau 3-5 xyoos nrog kev ua kom tsawg.
Circulating Dej Circulating BackPass filtration filtration system kav: Txhawm rau tiv thaiv kev tsis txaus siab (xws li cov dej sib dhos los ntawm cov khoom sib xyaw ua ke, yuav tsum muaj kev sib zog ua ke. Galvanized cov kav dej tau siv rau cov inlet thiab qhov hluav taws xob cov kav dej ntawm bypass lub twj tso kua thiab raws li kev sib txuas rau cov ntxaij lim dej. Vim tias dej ntws qeeb qeeb (feem ntau 0.8-1.2 Cov kav dej khov kho nrog cov kav hlau uas muaj cov tshuaj tiv thaiv kev ua kom tsis zoo. Lub phab ntsa tuab yuav tsum tau yoog raws li lub system siab (feem ntau 0.4-1.0 MPa, coj mus rau ib phab ntsa tuab ntawm 3.5-5 hli).
Thaum muaj xwm ceev cov kav dej txias: qee qhov siab- Cov tshuaj uas muaj kev pheej hmoo txias (xws li cov txheej txheem cua txias kub Galvanized cov kav dej yuav siv rau cov tso tsheb hlau luam ceev los ntawm kev tso tsheb hlau dej thaum muaj xwm txheej ceev (haum rau sab nraum zoov teeb tsa). DN50-DN100 (txheej txheem hla 57-114 mm) yog ib txwm raug xaiv los ua kom muaj kev kub ntxhov rau kev lom zem thiab cov kev ua kom huv
Tshuaj lom neeg siv tau cov khoom siv ntxuav thiab tom qab tsim tawm cov kuab tshuaj sab hauv dua (piv txwv li, tshuaj tiv thaiv 95% rau kev siv tshuaj tua kab mob). Galvanized cov kav dej muab cov khoom tseem ceeb nyob rau hauv cov qis {{}} siab} {[Corrosion Daim Ntawv Siv:
Cov cuab yeej tu kav dej: Siv los thauj cov kua dej (piv txwv li dej tsis muaj zog, thiab qis {{{{{{lip (tu nyob rau hauv qhov chaw) thiab lim backwash kab. Vim tias ntxuav cov kua dej yog feem ntau yog nruab nrab lossis tsis muaj zog alkaline (pH 7 {{{{}} 9), lawv tsis ua rau kev puas tsuaj zinc. Tsis tas li ntawd, txoj kev du sab hauv ntawm galvanized kav txwv tsis pub cov kua nyeem tsis huv, yog li tiv thaiv cov paug tsis huv. Cov kev qhia tshwj xeeb ntau ntawm DN25 - dni}} {{}} siab}}} siab}}} siab} Kuv cov zis siv tshuab ntxuav (0.2-0.6mpa). Kev daws teeb meem Piping: Siv rau kev ua haujlwm (xws li cov dej nyab thiab cov kuab tshuaj yeeb yaj kiab) rau cov kuab tshuaj sib xyaw tank. Piv txwv li, thaum diluting highhanol mus rau qhov qis dua, galvanized roos loos kav hlau tuaj yeem siv los thauj cov dej tawm. Tseem Ceeb: Cov piping no tsuas yog tsim nyog rau tsis-polar, solubility solvents (xws li eethanol thiab acetone). Zam kev siv cov kuab tshuaj polar heev (xws li DMF thiab DMOPS) -Tes cov kuab tshuaj yuav nkag rau qhov zinc txheej zinc thiab ua rau nws ua kom tsis txhob cuam tshuam. Piping yuav tsum mus kuaj dhau mus (xws li cua siab sim) kom tiv thaiv cov kuab tshuaj evaporation thiab to.
3. Ib qho khoom lag luam thiab kev thauj khoom tshaj tawm: ib qho "hloov channel" rau tsawg-} kev pheej hmoo cov ntaub ntawv
Hauv kev tsim cov tshuaj lom neeg, galvanized round los thauj qee qhov qis - kev pheej hmoo cov ntaub ntawv, catalalt cov cab kuj, thiab txheej txheem inert gases). Cov no suav nrog:
Khoom qab zib thauj khoom: Qee cov hmoov ntxiv (xws li stabilizers thiab kev pab cuam tshuam nrog dej) yuav tsum tau tov nrog dej ua ntej tau ntxiv rau cov tshuaj tiv thaiv ua ntej. Galvanized cov kav dej tau siv raws li kev sib ceg ceg rau slurry thauj (cov kav dej loj yog feem ntau ua los ntawm kev coj {{1} {resistant steel). Vim tias cov slurry muaj cov khoom me me me me, tuab galvanized flaval (4-6mm) yuav tsum los tiv thaiv yaig thiab phab ntsa thickning vim tias particle erosion. Kuj tsis tu ncua yog tseem yuav tsum tau los tiv thaiv kom tsis txhob muaj kev sib txuam thiab txhaws ntawm cov yeeb nkab.
Tsawg -} h siab inert gas me nyuam: Qhov no yog siv los xa cov pa nitrogen thiab compressed huab cua (raws li kev thaiv khaub ncaws (raws li cov ntaub thaiv npog lossis nplawm. Piv txwv li, thaum Nitrogen tau qhia rau hauv cov tshuaj reactor kom cais oxygen, galvanized round rounds txuas cov nitrogen tank rau cov khoom siv. Vim tias cov roj siab roj yog tsawg (feem ntau 0.1 - 0.}} 0.} Corrosive, galvanized kav dej tuaj yeem ua tau raws li cov tseev kom ua tau. Cov kev qhia tshwj xeeb muaj xws li DN15-DN40 (txheej txheem uas hla 21.3-48.3 mm) nrog lub phab ntsa tuab ntawm 2-3 hli. Cov kav dej ywj pheej yog qhov tseem ceeb kom tsis txhob muaj roj pov tseg thiab cuam tshuam kev ua haujlwm.
Ii. Kev sib xyaw thiab cov ntsiab lus: txiav txim siab txiav txim siab "thaj tsam" ntawm cov kua dej
Cov kev txwv tseem ceeb ntawm galvanized round round hauv tshuaj lom neeg thauj khoom yog cov xeb tsis kam ntawm cov txheej zinc. Zinc Plinolves sai sai hauv cov muaj zog, thiab cov neeg ua kom muaj zog oxidizing, thiab muaj zog tswj kev sib koom tes, ua rau cov yeeb nkab tsis ua haujlwm. Ib qho kev sib cav nruj yuav tsum tau ua nruab nrab ntawm "cov kua dej tau tshaj" thiab "tej yam dej caw":
Qeb dej hom lus tshwj xeeb yog vim li cas thiaj li ua kom haum / tsis sib thooj
Cov tshuaj ntau tshaj plaws: nruab nrab / tsis muaj zog alkaline cov kev daws teeb meem: part ib qho kev daws teeb meem hydium hydrocide), dej deionized. Zinc yooj yim ua cov tuab zinc oxide passivation zaj duab xis nyob hauv ib puag ncig / tsis muaj zog alkaline ib puag ncig, tiv thaiv ntxiv corrosion ntxiv.
Tsawg -}}}}} pamen nruab nrab cov kuab tshuaj: ethanol (tsawg dua los yog sib npaug ntawm 95%), acetone, antenger). Cov kuab tshuaj muaj tsawg polarity, tsis txhob chemically react nrog zinc, thiab tsis muaj cov nyhuv yaj.
Inert gases: nitrogen, compressed huab cua (roj {{{0} {{{{1} {} Pub dawb paug), Qhuav carbon dioxide. Gases tsis yog - corrosive thiab tsuas yog xav tau withstescent qhov pressures. Lub galvanized yeeb yuav tsum muaj zog txaus.
: Cov kua dej tsis sib haum: Hydrochloric acid, sulfuric acid, ntau dua los yog sib npaug rau 10%), nitric acid (ntau dua lossis sib npaug li 5%). Muaj zog acids sai sai ntawm zinc txheej (zom {}} hcl {} zcl₂ + h}
Xav tau oxidizing tshaj tawm: hydrogen peroxide (ntau dua lossis sib npaug rau 30%), sodium hypochlorite (ntau dua lossis sib npaug ntawm 10%), poov tshuaj permanganate daws. Cov neeg muaj zog oxidants oxidize zinc rau soluble zincates, nrawm degrading cov txheej.
Yuav muaj kev sib koom tes tshaj tawm: ammonia (loj dua los yog sib npaug rau 25%), cov tshuaj cyanide, Edta daws. Ammonia thiab cyanide daim ntawv nyob ruaj khov nrog zinc ions, nrawm qhov kev sib cais ntawm cov txheej zinc.
High - dej txias (ntau dua los yog sib npaug nrog 120 {} {}} kub sov roj (ntau dua los yog sib npaug rau 150 degree). Kev kub siab tuaj yeem ua rau kev puas tsuaj zinc passive zaj duab xis. Zinc kuj muaj qhov tsawg me me me me me me me me me me (419 degree) thiab yooj yim softens thaum kub siab, muaj kev cuam tshuam yeeb nkab.
III. Cov kev xaiv tseem ceeb: los ntawm "haum" rau "kev ua raws"
Tshuaj lom neeg pab thauj mus los rau qhov xav tau siab heev ntawm cov yeeb nkab kev nyab xeeb thiab kev ruaj ntseg. Kev xaiv ntawm Galvanized cov kav dej yuav tsum yog raws li plaub qhov tseem ceeb: kev ua kom muaj qhov kub thiab kev ua raws. Qhov no yog qhov tseem ceeb heev kom tsis muaj kev pheej hmoo xws li txeej thiab tawg tshwm sim los ntawm xaiv tsis raug:
1. Txiav txim siab phab ntsa tuab raws cov kab ke siab: zam dhau cov kav dej dhau, ua kom tawg lossis tuab heev, so
Cov tshuaj lom neeg cov tshuab ua haujlwm feem ntau yog cov kev siab feem ntau (tsawg dua los yog sib npaug rau 1.6 MPa). Phab ntsa tuab yuav tsum tau muab xam raws li kev ua haujlwm tiag tiag. Tus qauv siv yog "galvanized welded steel kav rau tsawg {3} Kev nqus dej kom siab li cas" (GB / T 3091-2015):
Tsawg - cov pa hluav taws xob siab (0.1-0.6 mpa): rau cov roj tuab ntawm 3.0 mm tuaj yeem tiv taus ib lub siab ntawm 1.0 MPA).
Tsawg - tshuab hluav taws xob nruab nrab ntawm lub taub hau ntawm 89 lub taub hau, siv cov kab cua sov ntawm 8,0 mm tuaj yeem tiv thaiv tau ib lub siab ntawm 1.6 MPA).
Muab xam hauv paus: Reserve 1.2 - 1.5 hli. Ib qho kev nyab xeeb ntawm 100 npaug ntawm cov kev ua haujlwm siab (piv txwv li, phab ntsa tiag tiag phab ntsa yuav tsum ua kom tau raws li cov kabmob thauj khoom ntawm "ua haujlwm siab x kev nyab xeeb rau qhov tseeb"). Piv txwv li, yog tias cov haujlwm siab ua haujlwm yog 0.8 MPa, ib lub phab ntsa thickness muaj peev xwm ntawm nrog cov kev pom zoo tshaj 1.2 MPA (0.8 x 1.5) yuav tsum tau xaiv.
2. Xaiv cov txheej txheem galvanizing raws li cov yam ntxwv ua kua: kub- dip galvanizing yog qhov zoo tshaj plaws txias- dip galvanizing.
Tshuaj lom neeg cov ntawv thov thauj tsheb thauj mus los feem ntau koom nrog ntev {} {} - rip galvanized kav dej) yog pom zoo. Qhov sib txawv ntawm ob yog raws li hauv qab no:
Kub - dip galvanized cov kav dej: lub zinc txheej yog 100 {}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} us--galvanizing txheej txheem. Cov coating hlineserly rau cov yeeb nkab steel, muab cov yeeb yam corrosion muaj zog thiab lub neej kev pabcuam ntawm 5-8 xyoos nyob rau hauv kev ncig dej.
Txias - dip galvanized kav dej (cov kav dej eleces): lub zinc txheej yog 10 {{}}}}}}}}}}}}} 30μm tuab thiab siv ib tus txheej txheem pov hwm electrolytic. Cov txheej txheej yog nquag ua rau flaking thiab muaj kev tsis zoo corrosion tsis kam. Rusting tshwm sim tsis pub dhau 1-2 xyoo nyob rau hauv 1-2 xyoo ntawm cov piping noo nyob rau hauv chav qhuav (xws li kev ua kom huv si raws li qauv
Kev lag luam tshuaj muaj cov qauv nruj rau cov kav dej. Galvanized cov kav dej yuav tsum ua kom tau raws li cov hauv qab no:
Cov Qauv Khoom: Lub hauv paus STEEL YEES YUAV TSUM TAU Q235 lossis Q345 QU345 QIS-}}} {) Txhawm rau tiv thaiv kom pom kev tawg ntawm qhov chaw kub qhuav lossis nrawm hloov pauv.
Cov txheej txheem sab nraud: cov taub sab nraud thiab phab ntsa thickness tiv thaiv yuav tsum tau ua kom tsis txhob muaj kev sib txawv uas tuaj yeem ua rau tsis sib thooj nrog cov li qub thiab flanges.
Kev Tu Kom Huv Si Cov Qauv: Yog hais tias cov kua dej uas nkag mus rau hauv cov khoom lag luam rau cov khoom noj (xws li ntxuav cov khoom siv cov khoom noj khoom haus. " Sab hauv phab ntsa yuav tsum tau du thiab Burr {{4 4} pub dawb, thiab cov roj galvanized yuav tsum muaj cov hlau ntau (ua raws li GB 4806.11).