Lub thawv siab stainless yog dab tsi?

Lub thawv ntim siab stainless yog ib hom thawv kaw tshwj xeeb uas ua los tuav cov pa roj lossis kua ntawm qhov siab uas txawv ntawm qhov ib txwm muaj, feem ntau siab dua 15 psig. Cov thawv no yog cov khoom tseem ceeb ntawm kev tsim kho hauv ntau lub lag luam sib txawv. Lawv yog ua los ntawm cov hlau tsis xeb austenitic, ferritic, lossis duplex. Tsis zoo li cov hlau carbon, cov thawv ntim siab stainless tsis pub muaj kuab paug rau hauv lub cev thiab tsis xeb sab hauv lossis sab nraud. Qhov no ua rau lawv tseem ceeb rau cov haujlwm uas yuav tsum huv, ruaj khov ntawm qhov kub siab, thiab tiv taus cov tshuaj oxidation.

Nkag Siab Txog Cov Thoob Dej Siab Uas Tsis Muaj Hlau

Cov Haujlwm Tseem Ceeb thiab Cov Khoom Siv

Cov hlab ntsha stainless siv lawv cov yam ntxwv tshwj xeeb hauv kev ua hlau kom lawv nyob ruaj khov hauv qhov chaw nyuaj. Cov ntsiab lus chromium - uas tuaj yeem nyob qhov twg los ntawm 10.5% txog 30% raws li qib - tsim cov txheej oxide passive uas kho nws tus kheej thaum nws raug khawb, tiv thaiv xeb ntev. Ib qho teeb meem loj hauv kev ua haujlwm hauv kev lag luam yog tias cov ntaub ntawv tawg hauv cov xwm txheej tshuaj lom neeg hnyav. Qhov no kho qhov teeb meem ntawd.

Cov Qib Hlau Stainless Feem Ntau

Kev xaiv cov hlau kom raug cuam tshuam rau nws qhov ruaj khov thiab kev nyab xeeb. Qib 304 yog xeb-resistant thiab tsim nyog rau kev sib cuam tshuam tshuaj lom neeg me me vim nws muaj 18% chromium thiab 8% nickel cov ntsiab lus. Qib 316 suav nrog 2-3% molybdenum kom tiv taus chlorine pitting thiab crevice corrosion. Qhov no yog qhov tseem ceeb rau cov txheej txheem chlorinated thiab cov chaw nyob hauv hiav txwv. Qib 321 tiv thaiv kev tsim carbide thaum lub sijhawm vuam thiab kev pabcuam kub siab tshaj 800 ° F nrog titanium stabilization.

Tus lej sib npaug ntawm Pitting Resistance (PREN) ntsuas qhov kev tiv thaiv xeb. 316L muaj PREN ntawm 24, thaum cov qauv duplex zoo li 2205 muaj 35, ua rau lawv zoo dua rau cov kua qaub thiab kev kho cov dej khib nyiab uas muaj chloride ntau.

Cov Qauv Tsim Qauv Thoob Ntiaj Teb

Ua raws li cov cai tsim kho uas paub zoo ua rau cov qauv ruaj khov nyob rau hauv cov xwm txheej hnyav. Pawg 2 tso cai rau kev tsim qauv-los ntawm kev tshuaj xyuas kom txo qhov hnyav zoo tshaj plaws, thaum Pawg VIII Pawg 1 tswj hwm kev tsim qauv-los ntawm txoj cai. Cov Lus Qhia Txog Khoom Siv Siab European (PED 2014/68/EU) faib cov nkoj los ntawm kev pheej hmoo thiab yuam kom muaj kev tshuaj xyuas los ntawm sab nraud rau qhov txaus ntshai tshaj plaws. Tus qauv Suav GB150 zoo ib yam li cov cai ASME tab sis muaj cov khoom siv tshwj xeeb rau kev tsim khoom Suav.

Yuav kom paub seb phab ntsa tuab npaum li cas, siv cov mis t = (P×R)/(S×E-0.6×P), qhov twg P yog qhov siab uas tsim los, R yog lub vojvoog sab hauv, S yog qhov kev ntxhov siab uas tso cai, thiab E yog qhov sib koom ua ke zoo. Cov kev kwv yees no teeb tsa cov kev txwv kev nyab xeeb uas suav nrog kev xeb, uas rau cov hlau tsis xeb hauv kev pabcuam huv si feem ntau yog 1/16" txog 1/8".

Cov txiaj ntsig ntawm Cov Hlau Stainless Steel Pressure Vessels hauv Kev Siv Hauv Kev Lag Luam

Superior Durability thiab Corrosion Resistance

Thaum cov khoom siv txheem siv rau hauv cov chaw lag luam uas cuam tshuam nrog cov slurries abrasive, cov dej khib nyiab acidic, lossis cov dej ntsev ntau, cov khoom siv yuav tawg sai dua. Cov txheej tsis ua haujlwm ntawm cov hlab ntsha stainless tsis oxidize txawm tias thaum nws raug rau pH theem ntawm 4 thiab 10. Qhov no txhais tau tias cov kab ke uas tau khaws cia kom zoo tuaj yeem kav ntev dua 25 xyoo. Lub neej ntev no ua rau muaj sijhawm tsis ua haujlwm tsawg dua, uas yog qhov tseem ceeb heev rau cov neeg tswj dej khib nyiab uas yuav tsum ua raws li cov sijhawm tso tawm nruj.

Qhov kev tiv thaiv no yog qhov tshwj xeeb tshaj yog pab tau rau cov chaw tsim tshuaj lom neeg. Thaum ua haujlwm nrog cov kua qaub sulfuric acid lossis alkaline peroxide ntxuav cov tshuaj, lub thawv stainless hlau tseem ruaj khov, thaum lub thawv carbon steel yuav tsum tau rov ua dua txhua xyoo. Qhov saum npoo tsis muaj qhov hws, yog li cov kab mob tsis tuaj yeem loj hlob ntawm nws. Qhov no txhais tau tias tsis muaj kev pheej hmoo ntawm kev ua qias tuaj hauv cov chaw khaws tshuaj thiab cov khoom noj khoom haus CIP (Clean-in-Place) systems.

Kev tswj hwm kev ua raws cai thiab kev nyab xeeb

Cov cuab yeej uas tsis ua rau cov dej ntws lossis cov dej hauv av qias neeg yog qhov yuav tsum tau ua raws li txoj cai ib puag ncig. Qhov chaw nruab nrab ntawm cov hlau tsis xeb tiv thaiv cov hlau oxide kom tsis txhob nkag mus rau hauv cov dej kho, pab cov chaw kho dej ua kom tau raws li EPA cov kev cai tag nrho. Cov khoom siv no tiv taus hluav taws thiab tswj tau cov khoom siv kho tshuab ntawm 1500 ° F. Qhov no ua rau nws muaj kev nyab xeeb rau cov chaw ua tshuaj lom neeg uas muaj cov organic uas tuaj yeem tawg.

Kev ua kom yooj yim rau kev tshuaj xyuas ua rau muaj kev ua raws li txoj cai. Cov nplaim electropolished du (qis dua Ra 0.4 micrometers), qhia txog cov kab nrib pleb ntawm kev ntxhov siab thaum lub sijhawm tshuaj xyuas ntau zaus. Cov neeg ua haujlwm EPC muaj kev ntseeg siab ntau dua vim lawv yuav tsum xyuas kom meej tias lub kaw lus ua haujlwm zoo ua ntej xa qhov project.

Tus nqi-txiaj ntsig tshuaj xyuas

Tus nqi ntawm cov thawv stainless hlau siab yog 2.5 txog 4 npaug ntawm cov thawv carbon hlau. Lub tank hlau carbon 500-gallon raug nqi txog li $ 8,000. Cov thawv hlau stainless 316L ntawm tib qhov loj me raug nqi kwv yees li $ 22,000. Txawm li cas los xij, kev lag luam thoob plaws lub neej txawv. Cov hlau carbon xav tau cov txheej tiv thaiv txhua 5-7 xyoo, raug nqi $ 3,500- $ 5,000 thiab muaj kev pheej hmoo ntawm kev ua qias tuaj ntawm cov khoom. Vim tias cov hlau stainless kav ntev li 20 xyoo, pheej yig dua los saib xyuas, txuag hluav taws xob vim tias sab hauv huv dua, thiab pheej yig dua los hloov, nws tus nqi tag nrho ntawm kev muaj yog 30 txog 40%.

Cov hlau tsis xeb ua tau zoo dua li titanium thiab Hastelloy. Titanium kim dua 8–12 npaug ntau dua li lwm cov khoom siv vim nws xeb tsawg dua. Tsuas yog thaum muaj teeb meem loj, zoo li cov kua qaub hydrochloric muaj zog, qhov no tseem ceeb heev. Nov yog cov qib stainless duplex. Lawv kim dua 1.5 npaug ntau dua li cov hom austenitic tab sis muaj zog ob npaug. Lawv tuaj yeem muaj phab ntsa nyias dua thiab qhov hnyav thauj khoom sib dua.

Yuav Ua Li Cas Xaiv Lub Taub Hau Stainless Hlau Uas Zoo Rau Koj Lub Lag Luam

Kev ntsuam xyuas cov kev xav tau ntawm daim ntawv thov

Ua ntej piav qhia txog qhov chaw ua haujlwm, cov kws ua haujlwm txheej txheem yuav tsum xav txog qhov siab tshaj plaws uas tso cai ua haujlwm siab (MAWP), qhov kub thiab txias tsim, cov tshuaj lom neeg hauv nruab nrab, thiab qhov chaw xav tau. Lub Hoobkas tshuaj uas khaws dej rau kev txhaj tshuaj ntawm 80 psi thiab pH ib txwm xav tau cov lus qhia txawv ntawm lub Hoobkas ua cov ntxhia uas tso cov slurry tooj liab ntawm 225 psi thiab pH 3.5.

Qhov kub thiab txias cuam tshuam loj heev rau kev xaiv cov hlab ntsha siab stainless. Cov hom Austenitic uas tau raug sim cuam tshuam yuav tsum tau siv hauv qab -20 ° F kom tsis txhob muaj kev tawg brittle. Cov nroj tsuag thee gasification siv cov qib ruaj khov lossis cov hlau nickel siab dua ntawm 600 ° F kom tswj tau theem sigma.

Cov Txheej Txheem Xaiv Cov Khoom Siv Qib

Tus nqi, lub zog ua haujlwm, thiab kev tiv thaiv xeb raug txiav txim siab hauv daim phiaj xaiv. Kev ua haujlwm hauv dej ntsev lossis cov chaw nyob hauv hiav txwv nrog cov tshuaj chloride ntau tshaj 500 ppm yuav tsum siv 316L. Cov lag luam pulp thiab ntawv uas ntxuav nrog chlorine dioxide siv duplex 2205 lossis super-austenitic 6% molybdenum alloys.

Cov kev tsim nyog ntawm tus kws vuam thiab kev muab khoom cuam tshuam rau kev txiav txim siab ua haujlwm. Tus qauv GMAW koom nrog qib 304 yooj yim. Txawm li cas los xij, cov qib duplex xav tau qhov nkag cua sov meej thiab kev tswj hwm roj nitrogen rov qab los tswj hwm qhov sib npaug ntawm austenite-ferrite uas xav tau rau kev ua haujlwm xeb.

Cov Qauv Kev Ntsuam Xyuas Tus Neeg Muab Khoom

Thaum soj ntsuam cov neeg muab khoom, cov thawj coj yuav khoom yuav tsum txheeb xyuas peb lub ntsiab lus tseem ceeb. ISO 9001: 2015, ASME U-Stamp, thiab PED Notified Body daim ntawv pov thawj hauv kev tsim khoom qhia txog cov txheej txheem zoo. Cov cim no lees paub tias kev tsim khoom, kev vuam, thiab cov qauv tshuaj xyuas ua tau raws li cov kev cai thoob ntiaj teb.

Lub peev xwm tsim khoom txiav txim siab lub sijhawm ua khoom. Ib lub chaw tsim khoom tshwj xeeb hauv cov hlab siab siab nrog nws tus kheej lub tshuab, kev kho cua sov, thiab cov chaw kuaj mob tuaj yeem txo lub sijhawm ua khoom thiab txhim kho qhov zoo, ib yam li lwm cov chaw tsim khoom tshwj xeeb hauv cov hlau tsis xeb. Muaj ntau cov ntaub ntawv hauv Tshuag ua rau kev tsim qauv tshwj xeeb sai dua.

Thaum cov tuam txhab thoob ntiaj teb loj hlob tuaj, cov kev pabcuam tom qab muag khoom tseem ceeb heev. Cov neeg muab khoom uas muab kev pabcuam teeb tsa, kev cob qhia tus neeg teb xov tooj, thiab cov khoom seem hauv Tshuag txo cov sijhawm tsis tau npaj tseg. Jingjin Equipment muaj nyob hauv 123 lub tebchaws sib xyaw cov khoom loj nrog cov peev txheej hauv cheeb tsam.

Cov Txheej Txheem Yuav Khoom thiab Cov Kev Xyaum Zoo Tshaj Plaws rau Cov Hau Dej Siab Stainless Hlau

Nkag Siab Txog Lub Sijhawm Ua Khoom Siv

Feem ntau nws yuav siv sijhawm li ntawm 8 thiab 12 lub lis piam txij li thaum muaj kev txiav txim kom txog thaum cov thawv siab stainless hlau txheem nrog ASME code xam thiab cov qauv nozzle yooj yim raug xa tuaj. Lub sijhawm no suav nrog kev tau txais cov ntaub ntawv (2-3 lub lis piam rau cov khoom lag luam zeb tau ntawv pov thawj), muab lawv ua ke thiab vuam lawv (3-4 lub lis piam), cua sov lawv thiab txo kev ntxhov siab rau ib lub lis piam, thiab thaum kawg tshuaj xyuas lawv thiab sim lawv rau lub zog thiab kev ruaj khov (1 lub lis piam).

Cov Qauv Nqe thiab Kev Xav Txog Qhov Ntim

Cov thoob dej uas ua raws li tus neeg xav tau nrog cov phaj baffle rau kev ntsuas kub lossis cov agitator mounts rau kev sib tov siv sijhawm 14-18 lub lis piam los xa khoom. Cov qauv tsim nyuaj xws li lub taub hau hemispherical lossis cov sab conical siv sijhawm ntev dua los tsim. Cov thawj coj ntawm EPC project yuav tsum teem sijhawm yuav nkoj kom haum rau txoj kev tseem ceeb thiab tso cov xaj thaum lub sijhawm engineering ntxaws ntxaws es tsis txhob tos kom txog thaum lub tsev npaj txhij.

45–55 feem pua ​​ntawm tus nqi ntawm lub tank yog cov khoom siv raw; yog li ntawd, kev hloov pauv ntawm tus nqi stainless hlau yog qhov tseem ceeb. Tus nqi khoom lag luam cuam tshuam rau tus nqi nickel thiab molybdenum. Tus nqi nickel tau nce 40% thaum ntxov xyoo 2022 vim muaj teeb meem kev muab khoom. Cov ntawv cog lus tus nqi ruaj khov nrog kev nce nqi khoom siv tiv thaiv ob tog thoob plaws hauv cov haujlwm txuas ntxiv.

Qhov nyuaj ntawm kev tsim khoom txiav txim siab cov nqi seem. Rau cov nkoj uas xav tau 100% RT rau 1.0 kev sib koom ua ke, tus nqi pib nce ntawm $ 2,500 txog $ 4,000. Tsis zoo li qhov chaw RT ntawm 0.85 kev ua haujlwm. Txhawm rau kom txo qhov kev ntxhov siab, kev kho cua sov tom qab vuam (PWHT) raug nqi $ 1,500– $ 3,000. Qhov no nyob ntawm qhov loj ntawm lub tank.

Kev txuag tau los ntawm cov ntawv cog lus ntim khoom yog qhov tseem ceeb heev. Cov xaj nrog 5 txog 10 chav sib piv txuag tau 15 txog 20% ​​ib chav los ntawm kev xa khoom rov qab zoo tshaj plaws thiab teeb tsa kev them nqi. Koj tuaj yeem npaj nyiaj txiag thiab khaws cov khoom siv kom yoog tau nrog cov xaj yuav khoom txhua xyoo thiab cov khoom xa tuaj sib txawv.

Kev Npaj Khoom Siv thiab Kev Teeb Tsa

Cov kev cai lij choj thauj khoom loj dhau siv rau cov nkoj uas siab tshaj 40 feet lossis dav 12 feet. Cov nkoj no xav tau daim ntawv tso cai tshwj xeeb mus ncig thiab cov tsheb tiv thaiv. Vim muaj kev txwv txoj kev, tus nqi thauj khoom nce ntawm $ 1.50 / mais mus rau $ 4– $ 6 / mais, thiab lub sijhawm xa khoom nce ntxiv. Faib cov nkoj loj ua cov khoom sib txuas. Cov flanged couplings tuaj yeem ua rau muaj qhov xau uas xav tau kev saib xyuas gasket.

Kev teeb tsa thiab kev tso cov khoom siv yuav tsum tau kev sib koom tes ntawm cov kws tshaj lij hauv kev tsim kho. Lub peev xwm thauj khoom hauv pem teb thiab kev nkag mus rau ntawm lub crane yuav tsum tau kuaj xyuas ntawm lub nkoj hnyav 15,000-phaus. Cov neeg muab khoom muab cov duab kos thiab kev kwv yees qhov hnyav ntawm lub nra hnyav ua rau kev npaj yooj yim dua.

Cov lus lav ntawm tus muag khoom sib txawv heev. Kev them nqi ib txwm kav ntev li 12–18 lub hlis txij li thaum pib siv khoom lossis 24 lub hlis tom qab xa khoom. Cov lus lav ntev rau cov twj siv lossis cov cuab yeej nkag mus rau hauv tej zaum yuav tsim nyog xav txog rau kev teeb tsa nyob deb uas kev hu xov tooj kho kim heev.

Kev Txij Nkawm, Kev Tshuaj Xyuas, thiab Cov Lus Qhia Txog Kev Nyab Xeeb rau Cov Thawv Siab Uas Tsis Muaj Hlau

Cov txheej txheem soj ntsuam niaj hnub

Cov txheej txheem kev cai lij choj yuav tsum tau kuaj xyuas tsis tu ncua ntawm lub sijhawm teem tseg raws li qhov hnyav ntawm qhov kev pabcuam. Raws li ASME Tshooj VIII, ob qho tib si sab hauv thiab sab nraud pom kev yuav tsum tau ua txhua 5 xyoos rau kev pabcuam dav dav. Rau cov ntsiab lus txaus ntshai lossis yooj yim hlawv, kev kuaj xyuas yuav tsum tau ua ib xyoos ib zaug. Vim tias hydrogen sulfide yog qhov txaus ntshai, cov hlab ntsha stainless hlau kho dej khib nyiab uas tuav cov biosolids feem ntau tsuas yog yuav tsum tau kuaj xyuas txhua peb xyoos.

Cov txheej txheem kuaj tsis ua puas tsuaj (NDT) nrhiav pom qhov tsis zoo hauv qab qhov chaw uas tsis tuaj yeem pom nrog lub qhov muag liab qab. Ultrasonic thickness mapping nrhiav qhov chaw uas xeb ua rau phab ntsa nyias ua ntej lawv mus txog qhov tuab tsawg kawg nkaus uas tso cai. Thaum kuaj cov qib ferritic nrog cov khoom sib nqus, cov kab nrib pleb ntawm qhov chaw tuaj yeem pom. Thaum kuaj cov qib austenitic ntawm cov hlau tsis xeb, cov txheej txheem sib nqus tsis ua haujlwm.

Tom qab kho lossis hloov pauv, kev sim siab hydrostatic ntawm 1.3 zaug MAWP ua kom ntseeg tau tias cov qauv tseem khov kho. Thaum txias sab hauv tsis ua tau, kev sim pneumatic nrog cua compressed tuaj yeem siv hloov chaw. Txawm li cas los xij, nws muaj kev pheej hmoo siab dua rau kev tso tawm lub zog thiab yuav tsum tau saib xyuas los ntawm deb, thiab yuav tsum tau hnav cov ntaub thaiv tawg.

Cov tswv yim tiv thaiv corrosion

Txawm hais tias cov hlau tsis xeb yog cov hlau uas tiv taus tau ntuj tsim los, nws tseem tuaj yeem raug tawm tsam hauv qee txoj kev. Kev tawg ntawm Chloride stress corrosion (CSCC) tshwm sim thaum cov qib austenitic raug muab tso rau hauv qab kev ntxhov siab ntev tshaj 140 ° F hauv cov kua uas muaj chloride. Txhawm rau kom txo qhov kev pheej hmoo, qhov kub ua haujlwm tuaj yeem raug txwv, cov hlau nickel siab dua (xws li 904L) tuaj yeem xaiv, lossis kev kho qhov chaw compressive xws li shot peening tuaj yeem siv.

Kev xeb tawg tshwm sim hauv thaj chaw uas tsis txav mus los thiab qhov twg qhov kev poob oxygen ua rau cov txheej tsis ua haujlwm tawg. Qhov no feem ntau tshwm sim nyob ib puag ncig lub rooj zaum gasket thiab cov xov sib txuas. Qhov kev poob qis no tuaj yeem nres los ntawm kev hloov pauv rau tus qauv tsim kom tshem tawm cov ceg tuag thiab xyuas kom meej tias muaj cua nkag tag nrho thaum kaw. Cov txheej txheem tiv thaiv chromium oxide raug muab tso rov qab tom qab vuam lossis raug rau kev ua qias tuaj los ntawm cov txheej txheem passivation nrog nitric lossis citric acid.

Kev Nyab Xeeb thiab Kev Nyab Xeeb Kev Nyab Xeeb

Kev xeb uas cuam tshuam los ntawm cov kab mob me me (MIC) yog ib qho txaus ntshai rau cov dej txias thiab cov kab mob phwj uas cov kab mob sulfate-reducing nyob thiab tsim cov biofilms. Kev ntxuav tshuab thiab cov kev txhaj tshuaj biocide tsis tu ncua yuav rhuav tshem cov kab mob ua ntej cov pitting ntxiv pib.

Ib lub tuam txhab tsim cov thawv siab yuav tsum xyuas kom meej tias cov khoom siv tso tawm siab yog kab kawg ntawm kev tiv thaiv tiv thaiv kev siab dhau. API Standard 520 hais tias cov qhov dej nyab xeeb uas muaj lub caij nplooj ntoos hlav yuav tsum muaj qhov loj me kom cia tag nrho cov kua dej ntawm lub thawv tawm ntawm 110% ntawm MAWP. Txhua xyoo, qhov siab teeb tsa raug kuaj ntawm lub rooj ntev kom paub tseeb tias nws raug hauv ± 3%. Cov discs tawg teb tam sim ntawd rau cov tshuaj tiv thaiv qus, tab sis lawv yuav tsum tau hloov txhua zaus lawv qhib.

Kev npaj rau kev teb rau thaum muaj xwm txheej ceev suav nrog cov xwm txheej phem tshaj plaws. Kev kwv yees qhov kev pheej hmoo ntau yam sim kwv yees seb yuav muaj dab tsi tshwm sim yog tias lub tank ammonia 10,000-gallon tawg. Yog tias huab cua tig rov qab, cov pa roj lom yuav ncav cuag 1.5 mais deb thiab cuam tshuam rau cov neeg nyob ntawd. Raws li qib kev tiv thaiv, muaj cov txheej txheem nres tsis siv neeg, cov tshuaj tsuag dej nyab rau kev tso cov pa tawm, thiab cov txheej txheem ceeb toom hauv zej zog.

Cov ntsiab lus ntawm cov hlab siab, kev phom sij tshwj xeeb ntawm cov khoom siv sab hauv, cov txheej txheem thaum muaj xwm txheej ceev, thiab cov cai lockout-tagout rau kev kho yuav tsum tau them rau hauv cov kev cob qhia neeg ua haujlwm. Thaum lub sijhawm OSHA tshuaj xyuas, cov ntaub ntawv pov thawj kev txawj ntse tiv thaiv kev nyab xeeb ntawm cov neeg ua haujlwm thiab kev ua raws li cov cai.

xaus

Xaus lus, cov hlab ntsha stainless ua haujlwm zoo dua li lwm yam khoom siv rau cov lag luam uas xav tau kom huv si, tiv taus xeb, thiab txhim khu kev qha dhau sijhawm. Thaum yuav khoom, cov pab pawg paub txog cov qib khoom siv, cov qauv tsim, thiab kev lag luam tas mus li, lawv tuaj yeem los nrog cov kev daws teeb meem uas txo cov nqi thaum tseem ua tau raws li cov qauv kev nyab xeeb thiab kev ua raws cai. Kev tshuaj xyuas kom meej ntawm cov neeg muab khoom, tsom mus rau cov ntawv pov thawj, peev xwm tsim khoom, thiab cov kev pabcuam hauv paus, ua kom muaj kev sib raug zoo uas tuaj yeem ua tau raws li qhov xav tau ntawm cov lag luam nyuaj. Kev siv cov phiaj xwm tshuaj xyuas nruj thiab kev saib xyuas tiv thaiv ua rau cov khoom siv zoo rau ntau xyoo, tiv thaiv ob qho tib si kev nqis peev nyiaj txiag thiab kev txuas ntxiv ntawm cov txheej txheem sib cais thiab kev kho mob tseem ceeb.

FAQ

Q1: Dab tsi txawv 316L ntawm 304 stainless hlau hauv cov ntawv thov siab?

Tsab ntawv "L" txhais tau hais tias cov hlau muaj cov pa roj carbon tsawg (qis dua 0.03%), uas tiv thaiv chromium carbide los ntawm kev tsim thaum lub sijhawm vuam. Qhov no hu ua sensitization, thiab nws ua rau thaj chaw uas yuav xeb ntau dua. Ntxiv molybdenum rau 316L ua rau nws tiv taus chloride pitting thiab crevice corrosion ntau dua. Qhov no ua rau nws tsim nyog rau kev siv hauv thaj chaw marine, kev ua tshuaj lom neeg nrog cov tshuaj halogenated, thiab cov chaw kho mob uas txawm tias me me ntawm kev ua qias tuaj tsis raug lees txais hauv lub thawv stainless.

Q2: Cov hlab ntsha siab yuav tsum tau kuaj xyuas ntau npaum li cas?

Kev tshuaj xyuas ntau zaus npaum li cas nyob ntawm hom kev pabcuam thiab txoj cai lij choj. Rau kev pabcuam kev lag luam dav dav, yuav tsum muaj kev tshuaj xyuas sab hauv txhua tsib xyoos, thaum rau kev tswj cov khoom phom sij, yuav tsum muaj kev tshuaj xyuas txhua xyoo. Kev tshawb fawb txog qhov tuab ntawm ultrasonic yuav tsum tau ua txhua peb xyoos rau kev siv lub voj voog siab, zoo li cov hlab ntsha uas dhau los ntawm ntau lub voj voog siab. Tsoomfwv hauv xeev thiab xeev yuav teem sijhawm nruj dua; xyuas koj lub boiler hauv zos thiab cov lej siab rau cov cai tseeb.

Q3: Cov hlab ntsha carbon uas twb muaj lawm puas tuaj yeem hloov kho mus rau cov qauv stainless hlau?

Vim tias cov txheej txheem stainless cladding lossis lining coj kev pheej hmoo ntawm galvanic corrosion ntawm thaj chaw sib cuag, tib txoj hauv kev kom zoo dua yog hloov tag nrho cov ntaub ntawv. Thaum lub neej ua haujlwm ntawm cov hlau carbon poob qis dua 7-10 xyoo, kev tshuaj xyuas kev lag luam feem ntau nyiam lub tsev stainless tshiab. Qhov no cia cov peev txheej tau them rov qab dhau sijhawm thaum zam qhov xav tau kev saib xyuas txheej txheem hauv lub sijhawm ntawd. Thaum xeb sab nraud tsis yog teeb meem loj, cov qauv tsim sib xyaw nrog cov hlau stainless hauv cov hlau carbon plhaub ua haujlwm zoo rau qee yam haujlwm.

Koom tes nrog Jingjin rau Kev daws teeb meem ntawm lub thawv siab uas txhim khu kev qha

Tsis yog koj yuav tsum saib qhov zoo ntawm cov khoom xwb, tab sis koj kuj yuav tsum saib seb tus neeg muag khoom mob siab npaum li cas los muab kev pabcuam mus sij hawm ntev. Jingjin Equipment Inc. muaj ntau tshaj 35 xyoo ntawm kev paub txog kev cais cov khoom khov thiab cov kua, uas tuaj yeem siv nrog cov hlab ntsha stainless hauv kev khawb av, kev ua tshuaj lom neeg, thiab kev kho dej khib nyiab. Peb qhov chaw tsim khoom tso cai rau peb ua cov hlab ntsha tshwj xeeb uas tiv taus xeb thiab tsim los ua haujlwm zoo nrog cov tshuab lim dej. Tsis tas li ntawd, peb lub network ntawm cov chaw ua haujlwm hauv 123 lub tebchaws ua kom ntseeg tau tias koj tuaj yeem tau txais kev pab sai sai thaum koj txoj kev lag luam loj hlob.

Peb cov ntaub ntawv ua tiav tag nrho, uas suav nrog daim ntawv pov thawj ASME U-Stamp, cov ntawv qhia txog kev taug qab cov khoom siv, thiab cov ntaub ntawv kuaj hydrostatic, ua rau nws yooj yim dua rau cov thawj coj kev yuav khoom los xyuas seb puas ua raws li txoj cai thiab pom zoo rau cov haujlwm. Peb pab neeg engineering muaj 136 daim ntawv pov thawj thiab ntau xyoo ntawm kev paub txog kev txhim kho cov txheej txheem, yog li lawv tuaj yeem pab koj txawm tias koj xav tau lub tank sib tov txheem rau kev kho cov dej phwj tuaj lossis lub thawv reactor tsim tshwj xeeb rau kev ua cov tshuaj tshwj xeeb.

Hu rau Jingjin tam sim ntawd kom tau tham nrog ib tus ntawm peb cov kws ua haujlwm txog koj cov kev xav tau ntawm lub tank siab. Koj tuaj yeem xa email rau peb ntawm [email protected] kom tau txais cov ntaub ntawv ntxiv, teem sijhawm ncig xyuas peb lub Hoobkas, lossis tiv tauj nrog lub tuam txhab ua lub thawv siab stainless uas mob siab rau kev ua haujlwm zoo tshaj plaws thiab kev sib raug zoo mus sij hawm ntev.

References

1. Lub Koom Haum Asmeskas ntawm Cov Kws Ua Haujlwm Tshuab. (2021). ASME Boiler thiab Cov Cai Tswjfwm Siab, Ntu VIII: Cov Cai rau Kev Tsim Cov Vessels Siab. New York: ASME Xovxwm.

2. Pawg Neeg Saib Xyuas Tebchaws Europe. (2014). Cov Lus Qhia Txog Cov Khoom Siv Siab 2014/68/EU: Cov Kev Cai Tseem Ceeb rau Kev Nyab Xeeb. Brussels: Phau Ntawv Xov Xwm Tseem Ceeb ntawm European Union.

3. Avery, RE & Tuthill, AH (2016). Cov Lus Qhia rau Kev Xaiv Cov Hlau Stainless rau Kev Lag Luam Tshuaj thiab Kev Lag Luam Txheej Txheem. Kev Lag Luam Hlau Tshwj Xeeb ntawm North America Cov Ntawv Xov Xwm Kev Tshawb Fawb.

4. Pawg Neeg Saib Xyuas Lub Tebchaws ntawm Boiler thiab Lub Vessel Siab. (2020). Kev Tshuaj Xyuas thiab Kev Txij Nkawm Lub Vessel Siab: Ib Phau Ntawv Qhia Ua Haujlwm rau Cov Neeg Ua Haujlwm Hauv Hoobkas. Columbus: National Board Publications.

5. Sedriks, AJ (2018). Kev xeb ntawm cov hlau tsis xeb: Cov txheej txheem thiab cov ntawv thov siv tau hauv kev lag luam. Tsab thib ob. New York: Wiley-Interscience.

6. Megyesy, EF (2019). Phau Ntawv Qhia Txog Lub Vessel Siab: Tsim, Ua, thiab Tshuaj Xyuas Cov Qauv Rau Kev Siv Hauv Kev Lag Luam. Tsab Ntawv Tshaj Tawm Thib Kaum Tsib. Tulsa: PV Publishing.