Qhov kev ua tau zoo thiab kev ua haujlwm ntev ntawm lub tshuab nqus hlau nqus hlau yog nyob ntawm qhov kev xaiv kom raug ntawm cov ntaub ntawv rau nws qhov chaw ntub dej, vim tias cov khoom no yuav tsum tiv taus corrosive nres, kub heev, thiab kev ntxhov siab ntawm txhua yam.
Rau qhovwetted- xaus cov khoom(casing, impeller), cov khoom siv xaiv yog dictated los ntawm cov tshuaj ntawm cov kua. Rau cov kua dej corrosive zoo li muaj zog acids thiab alkalis,fluoroplasticsxws li ETFE, PFA, lossis PVDF yog cov khoom xaiv. Cov no muaj cov tshuaj tiv thaiv tshwj xeeb thiab xyuas kom cov kua nruab nrab tseem tsis muaj kab mob hlau. Rau cov tshuaj lom neeg tsawg dua los yog siab dua - kev siv siab, cov khoom siv hlau zoo liStainless hlau (AISI 316)yog tus qauv vim lawv lub zog thiab durability. Nyob rau hauv cov xwm txheej hnyav uas muaj qhov kub thiab txias tshwj xeeb tshaj yog qhov chaw corrosive, siab -kev ua tau zoo alloys xws liHastelloy los yog titaniumtuaj yeem siv tau.
Covbearings thiab shaftsyog qhov tseem ceeb rau lub twj tso kua mis ntev. Txij li cov twj tso kua mis no siv cov txheej txheem dej rau lubrication, cov khoom siv bearing yuav tsum muaj tus kheej zoo heev -lubricating zog thiab hnav tsis kam.Silicon carbide (SiC)yog dav suav hais tias yog cov khoom siv zoo tshaj plaws rau zawv zawg bearings vim nws qhov hardness, siab thermal conductivity, thiab superior corrosion kuj, ua rau nws haum rau feem ntau xav tau daim ntaub ntawv.
. Lwm txoj hauv kev suav nrogsiab -purity alumina ceramicslos yogcarbon graphite(feem ntau impregnated nrog hlau los yog resin), uas yog siv nyob rau hauv tsawg daim ntaub ntawv.
Thaum kawg, tussib nqus sib nqusthiablub plhaub ntimyuav tsum tau ua tib zoo xav. Lub plhaub ntim khoom yuav tsum tau ua los ntawm cov khoom tsis yog- cov khoom siv hlau nplaum uas muaj hluav taws xob tiv thaiv kom txo tau qhov poob tam sim no, uas ua kom muaj cua sov thiab txo qhov ua haujlwm. Cov ntaub ntawv muaj xws liHastelloy, titanium, lossis siab - cov yas muaj zog. Rau cov hlau nplaum, qhov kub thiab txias yog qhov txiav txim siab. ThaumNeodymium (NdFeB)muaj qhov muaj zog tshaj plaws magnetic teb, nws yog txwv rau cov ntawv thov hauv qab 120 degree. Rau siab - kev pabcuam kub txog li 300℃lossis ntau dua,Samarium Cobalt (SmCo)Cov hlau nplaum yog qhov tseem ceeb los tiv thaiv tsis tau demagnetization.
