Tsheb Siv Qib UREA

Diesel cav tail gas kho kua feem ntau hu ua tsheb siv qib urea, tsheb urea, lossis tsheb ib puag ncig urea. Tuam Tshoj thiab Europe feem ntau hu ua ADBLUE, Tebchaws Meskas feem ntau hu ua DEF, thiab Brazil feem ntau hu ua ARLA.

Rau kev sib txuas ntawm lub cav nrog SCR systems, nws yog ib qho tsim nyog yuav tau siv peb ADBLUE los xyuas kom meej tias kev ua haujlwm zoo ntawm SCR system.

Automotive qib urea yog dab tsi?

Tsheb siv qib urea yog ib hom tshuaj siv tsheb uas siv los txo cov pa phem uas raug tso tawm los ntawm cov tsheb diesel. Qhov no yog ib qho tseem ceeb heev uas yuav pab tiv thaiv peb ib puag ncig thiab ua kom huab cua peb ua pa huv si thiab noj qab nyob zoo.

Thaum lub cav diesel hlawv roj, lawv tsim cov pa roj uas muaj nitrogen oxides. Cov nitrogen oxides no tuaj yeem ua rau huab cua paug thiab tuaj yeem ua rau tib neeg noj qab haus huv. Txhawm rau tiv thaiv qhov teeb meem no, cov tuam txhab tsim hluav taws xob tau tsim cov tshuab uas txhaj tshuaj urea rau hauv cov dej ntws ntawm cov tsheb diesel. Cov urea reacts nrog cov nitrogen oxides tsim tsis muaj nitrogen thiab dej vapor.

Cov txheej txheem no yog hu ua selective catalytic reduction (SCR), thiab nws tau dhau los ua neeg nyiam hauv cov tsheb diesel thoob ntiaj teb. Qhov tseeb, ntau lub teb chaws muaj cov kev cai uas yuav tsum muaj cov tsheb tshiab diesel siv SCR thev naus laus zis txhawm rau ua kom tau raws li cov qauv emissions.

Ib qho zoo ntawm kev siv tsheb siv qib urea yog tias nws yooj yim heev rau siv. Nws tsuas yog yuav tsum tau ntxiv rau lub tank cais ntawm lub tsheb, thiab lub tsheb lub cav tswj kev tswj hwm tuaj yeem saib xyuas tus so. Qhov no txhais tau hais tias cov tswv tsheb diesel tuaj yeem txaus siab rau tag nrho cov txiaj ntsig ntawm SCR thev naus laus zis yam tsis tas yuav txhawj xeeb txog cov khoom siv nyuaj lossis kim.