https://www.jonyautoparts.com/water-pump/
Muaj ob hom thev naus laus zis rau kev tswj lub tsheb tso pa: cov khoom siv sab hauv huv thiab ua kom huv sab nraud. Qhov qub yog lub hauv paus, thiab qhov kawg yog qhov tseem ceeb thiab tseem ceeb. Tsuas yog los ntawm kev sib koom ua ke ob lub tshuab hluav taws xob roj av tuaj yeem tswj tau nyob hauv thaj tsam ntawm txoj cai nruj dua. Catalytic converter yuav tsum yog thawj qhov kev xaiv rau kev ua kom huv sab nraud. Txawm li cas los xij, yog tias kev ntxuav sab hauv tsis zoo, lub neej ntawm catalytic hloov pauv yuav raug luv heev.
Cov catalyst yog cov khoom siv thiab cov khoom siv tseem ceeb ntawm cov hloov pauv catalytic. Nws ua kom nrawm cov tshuaj tiv thaiv kom sib npaug, thiab tsis qhia nws tus kheej hauv qhov khoom kawg ntawm cov tshuaj tiv thaiv. Lub hauv paus tseem ceeb ntawm cov catalyst yog: kev ua haujlwm, xaiv tus kheej, ruaj khov thiab lub neej ntsuas.
Kev ua haujlwm yog hais txog qib uas tus catalyst cuam tshuam rau kev hloov pauv ntawm cov txheej txheem tshuaj tiv thaiv. Kev ua haujlwm siab dua, qhov feem pua ntau dua ntawm kev hloov cov khoom siv raw; kev xaiv yog hais txog feem ntawm cov khoom siv raw uas tau hloov pauv mus rau hauv cov khoom lag luam; kev ruaj ntseg hais txog nws cov haujlwm thiab kev xaiv Cov xwm txheej uas hloov pauv lub sijhawm; lub catalyst tsis tuaj yeem siv tas mus li, thiab nyob rau lub sijhawm kub thiab ua haujlwm tshuaj, nws kuj tseem yuav raug hloov pauv lub cev thiab tshuaj lom neeg, thiab raug tawm tsam ntau pua txhiab lub sijhawm, uas thaum kawg yuav ua rau nws tsis ua haujlwm.
Cov khoom siv hlau niaj hnub muaj txiaj ntsig suav nrog oxidizers Pt (platinum), Pd (palladium) thiab txo cov catalysts Rh (rhodium). Qhov sib piv loj ntawm oxidation thiab txo oxidizer feem ntau yog 5: 1, thiab tag nrho qhov hnyav ntawm cov hlau muaj txiaj ntsig suav txog 0.1% ntawm txheej txheej- 0.5%, cov ntsiab lus hlau muaj txiaj ntsig thiab ntim ntawm cov nqa khoom tau suav txog li 1.5g /L os. Nyob rau lub sijhawm ntev, kev siv cov hlau dav dav tsis yog siv cov hlau muaj nqi yuav tsum yog kev coj ua ntawm kev siv zog. Tam sim no, tus nqi ntawm platinum hauv khw yog ntau dua ob zaug kim dua li kub. Nws kuj tseem yuav yog vim siv ntau dhau ntawm cov catalysts.
Cov khoom thauj khoom siv kuj tseem yog cov khoom siv tseem ceeb ntawm cov hloov pauv catalytic. Ib qho ntawm nws cov ntaub ntawv tseem ceeb yog cordierite, uas tiv taus qhov kub thiab txias, nrog qhov ua haujlwm siab tshaj plaws ntawm 1200 ° C, lub zog siab, thiab qis qis nthuav dav coefficient. Tus neeg nqa khoom tau txais kev ua haujlwm zoo thiab tsim qauv pore. Qhov qhib tus nqi ntawm cov khoom siv hluav taws xob hauv tsev tuaj yeem ncav cuag 400-460 mesh/inch2, thiab cov phab ntsa yam tsawg kawg nkaus tuaj yeem ncav cuag li 0.16mm.
Nws tuaj yeem txhim kho lub zog ntawm lub tshuab catalyst, thiab tseem txhim kho nws qhov tsis kam hnav, cuam tshuam, lub ntiajteb txawj nqus, siab, kub, thiab hloov theem, txhim kho kev ua haujlwm ntawm cov catalyst, thiab txo cov ntsiab lus ntawm cov khoom siv nquag, tshwj xeeb tshaj yog thaum siv cov hlau uas muaj txiaj ntsig zoo ntawm platinum, palladium, thiab rhodium, cov khoom siv nquag tuaj yeem sib faib tau ntau heev thiab tuaj yeem txo qis. Hauv ntej, qhov zoo ntawm tus neeg nqa khoom yog qhov tseem ceeb heev rau cov hloov pauv catalytic.
Kev sib dhos ntawm cov hloov pauv catalytic yuav tsum dhau los ntawm kev sim thiab ua haujlwm tau zoo rau kev hloov pauv tib lub sijhawm, thiab kev pabcuam lub neej feem ntau ntau dua 80,000 kilometers.
https://www.jonyautoparts.com/water-pump/