Clogged catalyst: cov tsos mob, cov tsos mob, cov laj thawj tseem ceeb thiab cov lus pom zoo

2024 Tus sau: Erin Ralphs | [email protected]. Kawg hloov kho: 2024-02-19 16:10

Catalytic txo cov tshuab yog siv los txo cov khoom phom sij uas tawm mus rau hauv qhov chaw los ntawm cov yeeb nkab ntawm lub tsheb. Txawm li cas los xij, cov converters ua haujlwm ntev npaum li cov khoom catalytic nyob rau hauv qhov zoo. Thaum lub sij hawm, nws tsis ua hauj lwm zoo. Cia peb ua tib zoo saib seb qhov catalyst yog dab tsi, nws cov haujlwm tsis zoo, thiab cov kev daws teeb meem. Nws kuj tseem ceeb heev rau kev kuaj mob kom paub cov cim qhia thaum lub catalyst tau txhaws, cov tsos mob ntawm qhov teeb meem.

Catalytic converter - nws yog dab tsi thiab vim li cas?

Ntawm cov tsheb niaj hnub, nws yog ib qho tseem ceeb tshaj plaws ntawm cov pa tso pa tawm. Cov cuab yeej ntxuav cov pa tawm ntawm cov khoom tsis zoo. Cov no yog nitric oxide, carbon monoxide, ntau pawg ntawm hydrocarbons. Hauv cov catalyst yog cov lim tshwj xeeb hauv daim ntawv ntawm honeycombs.

Lawv yog tsim los ntawm cov hlau muaj txiaj ntsig. Nws tuaj yeem yog iridium lossis platinum. Nws yog ua tsaug rau cov hlau honeycombs uas muaj teeb meem tshuaj neutralized. Muaj peb lub ntsiab lus tseem ceeb hauv kev tsim cov cuab yeej - hlau casing, ib chav tsev nrog honeycombs thiab ib txheej thermal rwb thaiv tsev. Lub ntsiab tseem ceeb yog lub thaiv cov cab kuj. Nws tsim yog raws li cov khoom siv refractory ceramic. Cov muaj pes tsawg leeg suav nrog ntau lub hlwb zoo ib yam li honeycombs. Lawv tau tsim los ua kom thaj tsam ntawm kev sib cuag nrog cov pa roj. Lub honeycomb yog coated nrog ib tug alloy ntawm platinum thiab iridium. Cov tshuaj tiv thaiv uas tshwm sim thaum lub sij hawm sib cuam tshuam ntawm cov pa pa nrog ib txheej ntawm platinum-iridium alloy ua rau muaj cua sov ntawm cov catalyst. Raws li qhov tshwm sim, tag nrho cov teeb meem uas tsis tau hlawv sai sai thaum kov cov hlau saum npoo ntawm honeycombs. Cov txheej txheem combustion siv cov pa oxygen uas tseem nyob hauv cov pa tawm tom qab tawm hauv lub combustion chamber. Tsis tas li ntawd, cov tshuaj tsis muaj teeb meem kiag li tawm hauv cov pa tawm ntawm cov catalyst - N₂ thiab CO_2..

Cov khoom siv hauv catalyst thiab lawv txoj haujlwm

Catalytic converters siv ntau yam khoom. Cov no yog rhodium, platinum, palladium, iridium. Thawj lub ntsiab yog ib tug reductive catalyst. Nws txoj hauj lwm yog los kho NO thiab hloov nws mus rau hauv cov nitrogen zoo tib yam.

Platinum thiab palladium ua haujlwm oxidizers. Lawv yuav tsum ua kom nrawm nrawm ntawm oxidation ntawm unburned hydrocarbons, thiab tom qab ntawdhloov lawv mus rau chav. CO hloov mus ua carbon dioxide.

Cov tsos mob thiab cov tsos mob ntawm cov khoom txhaws

Yog tias lub catalytic converter tau txhaws, cov tsos mob yuav pab txiav txim siab. Lawm, cov tsos mob no tuaj yeem qhia tau tias muaj lwm yam ua haujlwm tsis zoo. Tab sis nrog kev kuaj mob kom ntxaws, txhua yam hais txog cov catalyst. Yog hais tias lub caij yog tag nrho clogged, lub cav yuav pib, tab sis tam sim ntawd nres tom qab ntawd. Lub tsheb nrawm dua. Thaum tus neeg tsav tsheb nias lub accelerator pedal, tej zaum yuav muaj kev xav tias lub tsheb tuav ib yam dab tsi ntawm lub rear bumper. Qhov no qhia tau hais tias muaj qhov thaiv hauv lub converter. Yuav ua li cas lwm tus koj tuaj yeem pom tias lub catalytic converter yog clogged? Cov tsos mob muaj xws li kev siv roj ntau ntxiv. Tab sis qhov no tsuas yog coj mus rau hauv tus account thaum lub tsheb tau poob lub zog thiab kev ua haujlwm ntawm lub accelerator pedal. Ntawd yog, lub tsheb nres tsav tsheb, thiab kev noj tau nce ntxiv. Tsis tas li ntawd, thaum pib lub cav txias, cov ntxhiab tsw tsw qab yuav tshwm sim.

Check Engine

Qhov no yog lub cim thoob ntiaj teb, yog li koj yuav tsum xub paub txog qhov yuam kev uas lub kaw lus tau tshaj tawm. Kev txiav txim siab ntawm cov lej no yog nyob rau hauv cov lus qhia rau lub tsheb. Tab sis nws yuav tsum tau borne nyob rau hauv lub siab hais tias xws li ib tug teeb yuav teeb tsuas yog hais tias ob lambda probes ntsia nyob rau hauv lub tsheb lub tso pa system. Thawj yog feem ntau nyob ua ntej lub converter. Nws yog tsim los kho tus nqi roj nkag rau lub cav.

Qhov thib ob sensor yog xav tau los tswj kev ua haujlwm ntawm lub converter. Nws yog qhov no lambda sojntsuam uas yuav muab qhov yuam kev. Piv txwv li,Yog hais tias muaj tag nrho cov tsos mob saum toj no ntawm lub clogged catalyst ntawm Ford Focus-2, thiab ECU muab qhov yuam kev P0420, qhov no qhia txog teeb meem nrog lub converter. Qhov yuam kev txhais tau tias kev tshem tawm cov pa roj tsawg.

Ntawm cov ntsiab lus txhaws ntawm ntau lub tsheb

Cia peb xav txog cov tsheb sib txawv uas tau nruab nrog catalytic converters txhawm rau kuaj xyuas qhov kev puas tsuaj ntau dua. Nws tsim nyog pib nrog cov qauv hauv tsev los ntawm AvtoVAZ. Qhov no yog VAZ-2110, -2114, Kalina. Ntxiv rau qhov tseeb tias lub tsheb yuav maj mam nrawm, muaj lwm cov cim qhia thiab ua haujlwm tsis zoo ntawm cov khoom siv hluav taws xob. Yog li, muaj ib lub suab uas tshwm hauv qab lub tsheb. Muaj kev xav tias pob zeb crushed tau nchuav rau hauv lub tsev converter. Lub suab no yog lub teeb liab qhia txog kev puas tsuaj ntawm lub hauv paus ceramic.

Yog tias peb tham txog cov tsheb tuaj txawv teb chaws, Ford Focus muaj cov tsos mob zoo ib yam ntawm cov khoom siv hluav taws xob. VAZ-21124 kuj tau nruab nrog xws li cov khoom tu. Yog hais tias peb tham txog lub domestic "dvenashka", ces muaj raws nraim tib yam txo hwj chim thiab suab nrov nyob rau hauv lub caij. Feem ntau, clogging lossis melting ntawm catalysts yuav nyuaj heev los xyuas thiab txiav txim. Tag nrho cov paib no tseem qhia txog teeb meem nrog cov sensors, ua haujlwm tsis zoo hauv lub zog hluav taws xob, thiab qhov hluav taws xob tsis ua haujlwm. Nco ntsoov tias malfunctions nyob rau hauv lub xeem ob system yog vim li cas vim li cas lub catalyst yog clogged. Cov tsos mob paub meej qhov no. Yog hais tias lub tsheb yog refueled nrog cov roj tsis zoo, cov roj sib tov yog npajtsis raug. Yog hais tias muaj misfires, qhov sib tov tsis hlawv tag nrho nyob rau hauv lub combustion chambers. Vim li no, cov pa tso pa muaj cov kua qaub ntau heev.

Nws yog vim li cas koj yuav tsum hloov cov nodes ntau zaus. Cov hlwb hauv catalyst sai clog thiab yaj.

Ua tsis tiav

Cov node pab ntau tshaj 200 txhiab km. Tab sis nyob rau hauv Russia tej yam kev mob, lub sij hawm no yog txo. Cov catalysts tsis zoo vim roj tsis zoo, noj roj ntau, tsis raug kho qhov hluav taws xob tsis raug, kev puas tsuaj.

Yuav kuaj li cas?

Cia saib yuav ua li cas txiav txim siab seb lub catalytic converter puas raug kaw. Cov txheej txheem muaj rau txhua tus thiab tsis tas yuav muaj kev txawj tshwj xeeb thiab kev paub. Koj yuav tsum pib lub tsheb thiab khaws lub cav ceev kom nws siab tshaj plaws. Tsis tas li ntawd, lub cav yog twisted ntawm qis, nruab nrab thiab siab zaus. Nyob rau hauv txhua hom, lub pedal yog sharply nias rau hauv pem teb. Lub cev muaj zog yuav tsum tsis txhob poob, tab sis, ntawm qhov tsis sib xws, hnov mob sharply. Yog tias muaj cov lus teb tsis muaj zog lossis lub cav tsis xav tig mus rau ntau tshaj 5000 rpm, koj yuav tsum xav txog kev hloov lub converter. Nov yog lwm txoj hauv kev los kuaj cov catalytic converter. Cov tsos mob thiab cov tsos mob tau lees paub, thiab nws yog lub sijhawm los xyuas kom meej tias cov khoom tawg. Txhawm rau kuaj mob, muab ib txhais tes rau ntawm cov yeeb nkab tso tawm. Cov pa hluav taws xob txav mus rau hauv pulses. Koj tuaj yeem xav zoo nrog koj txhais tes li cas lawv raug thawb tawm ntawm txhua lub tog raj kheej tig. Yog hais tias nyob twj ywm qhov ntws yog qhov sib npaug thiab tsis tu ncua, qhov no qhia ncaj qha rau qhov txhawsneutralizer. Yog tias koj nias lub khawm, thiab tom qab ntawd kaw lub cav, lawv yuav tawm maj mam. Cov no yog cov gases uas tau sau los ntawm ib tug clogged catalyst.

Zoo kawg

Yog li, peb pom los ntawm cov tsos mob dab tsi koj tuaj yeem txiav txim siab qhov ua haujlwm tsis zoo. Txhawm rau kom cov catalyst ua haujlwm tau zoo, cov kws tshaj lij pom zoo kom sau lub tsheb tsuas yog cov roj zoo thiab kuaj xyuas txhua lub tshuab hauv lub tsheb kom raws sijhawm.