Nws pib Kho Tus Kws Kho Mob|Auto Repair Technician
Lub teb chaws tau lees paub kev kho tsheb kho tsheb, 15 xyoo ntawm German, Asmeskas, Nyij Pooj thiab lwm yam kev kho tsheb, zoo ntawm: kev kuaj mob nyuaj thiab kho, kev cob qhia kev kho tej thaj chaw deb
Tus kws kho mob sab laj
Ordinary urea tov: 32.5% high-purity urea, 67.5% deionized dej. Antifreeze urea tov: 32.5% high-purity urea, 52.5% deionized dej, 15% methanol. Cov hauv qab no yog cov lus qhia txog cov ntsiab lus tseem ceeb:
Kev tsim nyog tsheb urea ua tau raws li cov ntsiab lus hauv qab no:
Ua ntej, nws ua raws li GB29518-2013, thib ob, nws muaj AdBlue ntawv pov thawj los ntawm German Automobile Industry Association, thiab thib peb, nws muaj CGT ntawv pov thawj los ntawm Tuam Tshoj Internal Combustion Engine Association. Tsuav yog muaj peb yam khoom, nws yog cov khoom tsim nyog. Cov khoom tsis tsim nyog muaj kev puas tsuaj loj rau peb txoj kev catalyst ntawm lub tsheb. Ib zaug puas lawm, nws tsuas yog hloov tau, thiab tus nqi kho yog siab heev.
Qhov zoo:
Nws yog siv los txo cov nitrogen oxides hauv lub tsheb tso tsheb thiab txo qis cov pa phem. Lub tsheb urea tov yog cov xim tsis muaj xim, pob tshab, cov kua ntshiab nrog cov concentration ntawm 31.8% thiab 33.2%. Lub tsheb urea tov tam sim no siv feem ntau yog tsim los ntawm 32.5% high-purity urea thiab 67.5% deionized dej. Tsheb urea tov yog tus yuam sij kom txo tau cov pa phem ntawm lub tsheb diesel. Lub tsheb urea tov yog urea-raws li tshuaj reactant, uas yog sib tov ntawm high-purity urea thiab deionized dej thiab yog ib tug tov nrog ib tug concentration ntawm 32.5%. Daim ntawv thov ntawm lub tsheb urea tov nyob rau hauv lub SCR (xaiv catalytic txo) system yog tus yuam sij rau lub cav tso pa tawm mus txog lub teb chaws IV thiab saum toj no emission qauv.
Tsheb urea tov:
Nws yog thawj zaug siv hauv Tebchaws Europe thiab hu ua Adblue. Nws tau raug hu ua DEF (Diesel Exhaust Fluid, piv txwv li lub tshuab hluav taws xob siv hluav taws xob tso tawm) hauv North America. Nws yog hu ua tsheb urea tov los yog "tsheb thauj neeg denitrification" nyob rau hauv Suav teb. Tab sis tam sim no nws feem ntau hu ua "tsheb urea" hauv Suav teb.