Ntsia thawv twj, raws li kev hloov pauv tau zoo thiab ruaj khov hloov cov khoom siv, tau siv dav hauv kev lag luam xws li tshuaj lom neeg, khoom noj khoom haus, thiab roj av. Kev xaiv kom zoo ntsia hlau kom zoo yog qhov tseem ceeb rau kev ua kom muaj zog tsim khoom, txo cov zog siv hluav taws xob, thiab kev nce khoom ntawm lub neej. Cov hauv qab no piav qhia tseem ceeb cov ntsia hlau tso cov kev xaiv cov kev xaiv, suav nrog cov tsis tseem ceeb, cov yam ntxwv xov xwm, thiab daim ntawv thov kev xaiv.
1. Txiav txim siab txaus thiab siab yuav tsum tau
Ntsia thawv cov khoom xaiv pib nrog txiav txim siab lub kaw lus yuav tsum tau ntws tawm ntau thiab cov hluav taws xob siab. Lub twj tso kua hlau sib txuas yog qhov haum rau qhov tsis muaj txiaj ntsig (xws li sib npaug nrog rau 1.6 mpa}} pakiv cov twj tso kua mis), thaum muaj cov ntsia hlau sib npaug Yog tias tus txheej txheem yuav tsum tau strict stability, tus qauv nrog siab volumetric txuag yuav tsum tau nyiam. Xyuas kom meej tias lub twj tso dej ntws tawm yog siab dua li qhov xav tau tiag tiag kom them nyiaj rau cov raj xa dej poob.
2. Txheeb xyuas cov yam ntxwv tshaj tawm
Cov xov xwm viscosity, corrosiveness, thiab cov khib nyiab cov ntsiab lus ncaj qha rau cov khoom siv thiab cov qauv tsim ntawm cov ntsia hlau twj tso kua mis. High-viscosity fluids (such as lubricating oils and polymer solutions) require a high-lead screw pump to reduce shear forces. Corrosive media (xws li cov kua qaub thiab alkalis) yuav tsum tau lub twj tso kua mis, rotor kom ua los ntawm corrosion {} astelloy, lossis fluororubber. Slurries muaj cov khoom muaj cov khoom yuav tsum tau nqus dej nrog cov kab mob dav dav kom tsis txhob qaug dab peg thiab hnav ntau dhau.
3. Xav txog qhov chaw ua haujlwm thiab txij nkawm.
Rau siab - kub lossis siab {{1} Lub cev kub siab, xws li lub thawv txias lossis khoom siv hluav taws xob) yuav tsum tau ntsuas. Rau cov tshuab nrog kev ua haujlwm sib quas ntus lossis nquag pib thiab nres, tus ntsia hlau lubricating qauv yog pom zoo kom txo qis kev pheej hmoo ntawm kev tawm tsam thermal. Tsis tas li ntawd, Modular cov twj tsim qauv yog qhov nyiam dua los pab tu thiab hloov hloov chaw, yog li txo qhov nqi ntev}.
Hauv cov ntsiab lus, kev xaiv ntawm lub tshuab ntsia hlau kom muaj kev txiav txim siab ntawm tus nqi ntws tsawg, siab, xov xwm kev ua haujlwm. Los ntawm qhov tseeb piv txwv thiab cov khoom siv, kev ua tau zoo yog ua kom muaj txiaj ntsig thaum ntsuas tus nqi sib npaug- ua hauj lwm zoo thiab ntseeg tau.
