Lub catalytic converter ua dab tsi?
Lub tshuab tso tsheb niaj hnub no tau ua ntau dua li qhov uas muaj txawm tias tsuas yog ob peb xyoos dhau los. Pom tau tias lub tsheb nruab nrab yog lub hauv paus tseem ceeb ntawm kev ua qias tuaj thoob ntiaj teb, Tsoomfwv Meskas tau dhau Txoj Cai Huab Cua Huv Huv uas xav kom txhua lub tsheb tsim tom qab hnub ntawd kom muaj kev ua haujlwm catalytic converter, ntawm lwm cov khoom tseem ceeb. Koj "miv" zaum hauv koj lub tsheb lub qhov tso pa tawm, khiav ntsiag to thiab txo cov pa phem.
Yuav ua li cas?
Lub catalytic converter muaj ib txoj hauj lwm: kom txo cov pa phem hauv koj lub tsheb kom txo cov pa phem. Nws siv cov khoom siv hluav taws xob (qhov tseeb ntau dua ib qho) los hloov cov tshuaj phem xws li carbon monoxide, hydrocarbons, thiab oxides ntawm nitrogen rau hauv cov khoom tsis zoo. Cov catalyst tuaj yeem yog ib qho ntawm peb cov hlau, los yog ua ke ntawm lawv:
- Platinum
- Palladium
- Rhodium
Qee cov catalytic converter manufacturers tam sim no ntxiv kub rau qhov sib tov vim tias nws yeej pheej yig dua li peb cov hlau thiab tuaj yeem muab oxidation zoo dua rau qee cov tshuaj.
oxidation yog dab tsi?
Oxidation yog siv nyob rau hauv qhov kev nkag siab no txhais tau tias "hlawv". Qhov tseem ceeb, cov catalyst yog rhuab mus rau qhov kub siab heev. Cov kub no, ua ke nrog cov khoom tshwj xeeb ntawm cov hlau siv los ua catalysts, tsim cov tshuaj hloov pauv hauv cov khoom tsis xav tau. Los ntawm kev hloov cov tshuaj muaj pes tsawg leeg, lawv ua tsis zoo.
Cov pa roj carbon monoxide (tshuaj lom) hloov mus ua carbon dioxide. Nitrogen oxides tau tawg mus rau hauv nitrogen thiab oxygen, ob qho tib si tshwm sim hauv cov huab cua. Hydrocarbons tshuav ntawm cov roj uas tsis tau hlawv yog hloov mus rau hauv dej thiab carbon dioxide.
