Cov khoom siv rau cov txheej txheem: li cas tppyk steel yeeb nkab fittings tsoo hydrocacking

 

Nyob rau hauv lub teb ntawm petrochemicals, lub siab - hydrocacking chav tsev yog zoo li lub tsev fuabtais muaj kev pab cuam tshuam hnyav rau hauv cov roj teeb hnyav. Hauv qhov "Tsev fuabtais" tag nrho ntawm cov kev ua haujlwm hnyav, raws li qhov siab, Tp321 cov kab mob siab, cov kab mob siab ntawm kev tiv thaiv ", twj ywm tiv thaiv kev ua haujlwm ruaj khov ntawm cov cuab yeej.

 

01 cov mis tsis sib xws

Tp321 cov yeeb nkab fittings bortings bortings bortaging stainless hlau tsev neeg, thiab nws cov ntsiab lus tseem ceeb xws li chromium (XICEL (NI). Chromium muab cov yeeb nkab fittings zoo oxidation tsis kam thiab corrosion tsis kam thiab ua yeeb yaj kiab los tiv thaiv kev yauv thiab lwm yam xov xwm corrosive; Nickel txhim kho cov tawv thiab corrosion tsis kam ntawm cov yeeb nkab fittings, cia nws nyob ruaj khov nyob rau hauv ib puag ncig hnyav; Thiab qhov ntxiv ntawm titanium yog tus yuam sij rau Tp321 cov yeeb nkab fittings. Nws sib xyaw nrog cov pa roj carbon los tsim ruaj ruaj titanium carbide, uas tau zoo tiv thaiv intergranular corrosion, uas yog qhov tshwj xeeb tshaj yog nyob rau hauv qhov chaw kub. Nws cov tshuaj lom neeg sib piv yog cov pa roj carbon monoxide (c) {{119.00 - 12.00, thiab titanium (ti) cov ntsiab lus ntau dua los yog sib npaug rau 5 × C%. Qhov kev piv txwv no tsim cov khoom tau zoo ntawm Tp321 fittings.

 

02 haib ua tau

1. Zoo heev corrosion: Seb puas muaj zog acids thiab alkalis hauv kev lag luam muaj kuab lom lossis high {{1} {} {} {} {1} {}} Nyob rau hauv cov kua qaub roj pipeline ntawm petrochemical kev lag luam, nws tuaj yeem tiv thaiv kev lag luam acidic xws li cov kev pheej hmoo ntawm cov roj to, thiab kom muaj kev nyab xeeb ntau.

2. Kev ntsuas kub zoo tshaj plaws: hauv qhov kub ib puag ncig, ntsuas hluav taws xob ntau, tsis yooj yim rau deform lossis oxidize, thiab tuaj yeem tswj cov khoom siv zoo. Piv txwv li, hauv cov kav boiler ntawm cov nroj tsuag thilal, nws tuaj yeem tiv thaiv ntev rau hauv qab no 650 degree, muab kev ntseeg tau yooj yim rau kev txuas ntawm lub zog ntau lawm.

3. Cov khoom siv zoo cov khoom siv: Tp321 fittings muaj lub zog siab thiab muaj peev xwm tiv thaiv ntau dua thiab cuam tshuam. Hauv kev tsim qauv tsev, nws tuaj yeem siv ua cov yeeb nkab txhawb kev ua kom muaj kev nyab xeeb ntawm cov vaj tse nyob rau hauv ntau lub zog sab nraud; Nyob rau hauv lub teb ntawm kev tsim kho tshuab, nws tuaj yeem ua tau raws cov khoom siv yuav tsum muaj rau cov yeeb nkab thiab kav ntev.

4. Kev ua haujlwm zoo: Tp321 cov yeeb nkab fittings muaj kev ua haujlwm zoo, ncab thiab lwm yam kev ua kom tau raws li cov kev xav tau sib txawv ntawm cov phiaj xwm sib txawv. Cov ntsiab lus siab ntawm FE2O3 vim tias cov cua sov ua kom sov thiab raug cov huab cua ua ntej kev txij nkawm, thiab qee yam tshuaj yog oxidized; Cov ntsiab lus siab ntawm fes thiab fecl3 qhia tau tias kev xeb yog tshwm sim los ntawm cov sulfides thiab chlorides.

 

03 dav siv

1. Petrochemical: Tp321 cov yeeb nkab fittings tau siv dav hauv cov roj ua kom zoo, thiab lwm yam kev sib txuas thiab cov raj hluav taws xob rau kev sib txuas rau ntau yam kev tawm tswv yim. Nws corrosion tsis kam thiab kub ua kom ntseeg tau qhov ruaj khov thiab kev nyab xeeb ntawm kev tsim cov tshuaj lom neeg.

2. Fais Fab Kev Lag Luam: Hauv cov hluav taws xob nuclear thiab cov hluav taws xob hluav taws xob ua kom muaj zog thiab cov chav ua haujlwm siab, thiab muaj txiaj ntsig zoo thiab ruaj khov ua haujlwm ntawm kev tsim hluav taws xob.

3. Aerospace teb: Vim yog nws lub teeb, muaj zog thiab cov khoom siv hluav taws xob tsis zoo, thiab muab kev tiv thaiv cov tsheb muaj kev nyab xeeb ntawm cov tsheb muaj kev nyab xeeb hauv cov teeb meem dav heev.

4. Khoom noj khoom haus thiab kev lag luam thiab kws tshuaj ntsuam xyuas: Tp321 cov yeeb nkab fittings tsis- kev lom zem, yooj yim los ntxuav cov qauv kev nyiam noj thiab cov tshuaj lom neeg. Lawv tau siv dav hauv cov khoom noj thiab dej qab zib xa tawm thiab cov raj xa dej ntawm cov khoom siv tshuaj ntsuam tshuaj kom paub tseeb cov khoom lag luam zoo thiab kev nyab xeeb.

TPP32 cov yeeb nkab fittings tau dhau los ua kev pab cuam muaj zog hauv kev lag luam nrog lawv cov ntaub ntawv tshwj xeeb, kev ua tau zoo thiab kev ua tau zoo ntawm daim teb. Nrog kev nce qib nro ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho cov yeeb nkab, Tp321 cov yeeb nkab tseem ceeb hauv kev txhim kho kev lag luam ntawm ntau yam kev lag luam.