Vim muaj ntau cov ntawv thov thiab kev ua haujlwm sib txawv ntawm cov twj tso kua dej, lawv yuav tsum tau kho sib txawv raws cov xwm txheej tshwj xeeb. Firstly, nws nyob ntawm lub system system nws yog siv rau, thiab kev faib tawm ntawm engineering yuav ntxhib cov hom thiab cov khoom siv ntawm cov twj. Tom qab, hauv txoj haujlwm ntawm tus kheej, raws li cov qauv tsim nyog, cov twj tso kua mis yuav raug faib ua ke raws li cov raj xa hluav taws xob, ntsuas tus nqi, thiab lub zog.
Txoj kev xaiv
Qhov kub ntawm qhov nruab nrab: tus brittleness ntawm cov khoom yuav nce ntawm cov khoom kub tsawg heev, tab sis nws yuav dhau los ua tus nkag siab kub; Qee cov ntaub ntawv tuaj yeem tiv thaiv cov xeb ntawm ib qho nruab nrab ntawm chav tsev kub, tab sis tsis yog corrosion ntawm qhov nruab nrab uas kub. Thaum xaiv cov ntaub ntawv, kev saib xyuas yuav tsum tau them rau qhov ntsuas kub thiab qhov ntsuas kub thiab lawv qhov sib txawv ntawm cov hloov pauv nruab nrab.
Corrosivation ntawm nruab nrab: cov corrosion tsis kam ntawm cov ntaub ntawv rau hauv nruab nrab yog tshwj xeeb rau hauv nruab nrab thiab nyob rau hauv ib tug ntau. Piv txwv li, cov acid resistant steel lcr18n19 siv nyob rau hauv IH tshuaj lom neeg centrifugal twj muaj peev xwm tiv thaiv cov kua qaub lossis cov organic accas, tab sis tsis tuaj yeem tiv thaiv corrosion los ntawm sulfuric acid.
Electrochemical corrosion: los tiv thaiv kev tsim ntawm electrochemical corrosion intrations nyob rau hauv cov ntaub ntawv sib txawv vim muaj peev xwm sib txawv rau txhua tus overcurrent Cheebtsam ntawm cov taub dej.
Kev lag luam ntawm cov khoom siv: nws yog tsis zoo siv cov ntaub ntawv zoo nrog cov khoom siv qis lossis tsis xeb-resistant cov ntaub ntawv uas yog corrosion-resistant cov ntaub ntawv hauv kev tsim qauv lossis siv.
Hnav tsis kam ntawm cov khoom khov kho: thaum lub nruab nrab ntawm nruab nrab muaj cov khoom siv tau muaj, cov khoom siv cuam tshuam yuav tsum ua los ntawm cov khoom siv uas tiv thaiv.
Clamping ntawm cov ntaub ntawv: rau cov seem uas txav tus txheeb ze rau ib qho kev teeb tsa thaum lub sij hawm lossis cov phiaj xwm sib npaug, cov paib, cov phiaj xwm, lub zog ntawm ob ntu yuav tsum Ua me ntsis txawv thaum xaiv cov ntaub ntawv lossis ua cov thev naus laus zis kom tsis txhob tom qhov chaw nres tsheb lossis kos ib qho thaum thauj khoom lossis kev ua haujlwm.
Cov chaw uas cov kua tsheb khiav nrawm dhau los ntawm: Lub tsho cuam tshuam thiab cov tsho sib dhos, sib npaug ntawm cov taub hau tsheb siab, thiab sib npaug ntawm cov twj nqa khoom siab yuav tsum tau ua los ntawm Yaig Resistant cov ntaub ntawv (xws li chromium stainless hlau lossis chromium npib acid resistant hlau, thiab lwm yam).
Taw qhia rau cov khoom siv rau cov twj tso kua dej
1, Nrum Hlau
1. Grey cam khwb cia hlau
Nws yog qhov feem ntau siv hom cam khwb cia hlau, nrog rau Suav code lub npe HT. Lub caij twj tso kua mis, impeller, nqus dej, tshem tawm, thiab lwm yam ua los ntawm cov khoom siv dej huv si, thiab peb qib feem ntau siv: HT150, HT200, HT250, HT250. Rau cov tsis tseem ceeb rau cov hauv paus thiab cov ntaub qhwv, HT150 feem ntau siv rau cov impellers, thiab lwm yam, looj tes tsho, thiab lwm yam. Thiab lwm yam.
Cov sawv cev ntawm grey hlau sib txawv ntawm cov teb chaws, xws li FC hauv Nyij Pooj, GG hauv Tebchaws Yelemees, thiab chav kawm hauv Tebchaws Asmeskas.
2. Zawv Hlau
Nws yog hom duab cam khwb cia nrog cov haujlwm zoo, nrog Suav code npe Qt. Vim tias nws cov khoom siv neeg yog ze rau cov hlau, thiab ua kom muaj peev xwm ua tau zoo dua rau cov hlau, nws feem ntau yog siv los hloov cov hlau pov tseg. Cov qhab nia siv ntau yog: Qt {450-10, qt {{1} 600-3.
Tus sawv cev rau tus hlau ductab hauv din teev yog ggg, thiab txoj sawv cev sawv cev yog pawg hlau.
Tsis tas li ntawd, muaj corrosion-resistant cam khwb cia hlau, hnav-resistant hlau - siab ruaj nrum hlau - maim nrum hlau hlau, thiab lwm yam.
2, Cam khwb cia hlau
Vim tias lub zog ntawm cam steel nce, thaum lub siab yog ntau dua 1.6mpa, cam khwb cia steel feem ntau siv rau sawv cev steel.
3, stainless hlau
Feem ntau siv stainless hlau yog Austenitic Stainless hlau, xws li {{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} {6}} Corrosion-resistant cov ntaub ntawv, feem ntau yog sawv cev los ntawm SS304, SS316, thiab SS316L.
Martensitic Stainless hlau xws li 2C13 thiab PC13 thiab muaj cov khoom siv zoo dua li cov khoom siv roj av ntawm cov twj tso kua mis thiab cov ntaub qhwv tes, sib raug mus rau code SS420.
Ntxiv rau, siab alloy stainless hlau (Alloy 20) thiab cov yas stuplex yog qhov zoo tshaj plaws corrosion-resistant cov ntaub ntawv.
4, alloy steel
Cov neeg sawv cev feem ntau alloy steel yog 40cr, feem ntau siv raws li cov khoom siv rau kev siv zog siab lub zog.
5, carbon qauv txheem hlau
Feem ntau faib ua cov roj carbon cov hlau thiab cov roj ua hluav taws xob zoo li qub.
Cov qauv sawv cev tshaj plaws rau tib neeg muaj txiaj ntsig Carbon cov hlau yog Q235, uas tau siv dav hauv ntau cov hlau thiab cov kab; Cov neeg sawv cev tshaj plaws feem ntau cov pa roj carbon ntau yog 45 hlau, uas tau siv dav ua lub taub hau cov khoom siv thaum tsis muaj kev xav tau txoj cai.
6, tsis yog xim hlau cov ntaub ntawv
Cov ntaub ntawv tsis yog xim hlau rau twj yog siv rau kev sib khi, xws li polytetrospenoroethylene, thiab lwm yam ntawm cov tshuab flueesrees vim nws cov khoom lag luam zoo li cas rau cov khoom siv hluav taws xob vim nws qhov zoo heev corrosion tsis kam thiab siab qhov kub txias kuj. Nws yog qhov haum rau yuav luag txhua cov tshuaj me me raws li 250 degree, tab sis nws qhov tsis zoo yog kev ua kom zoo thiab ua ke nyuaj.
Fluororubber kuj tseem yog cov khoom siv zoo rau qhov kub thiab corrosion tsis kam, nrog ib qho kev txwv siab tshaj plaws ntawm 160 degree. Thaum cov neeg siv tsis muaj kev cai tshwj xeeb, tshuaj chemical, siv tshuaj chemical tsuas yog siv cov nplhaib sib khi ua los ntawm cov khoom no; Cov roj hmab nitrile feem ntau yog siv rau kev sib khi ntawm cov roj lossis dej tsis kam tshaj.