Hauv cov tsheb thauj khoom hnyav, muaj ntau lub luag haujlwm uas ua lub luag haujlwm tseem ceeb hauv kev ua kom lub tsheb ua haujlwm tau zoo thiab ua tau raws li cov cai ntawm ib puag ncig.Ib qho piv txwv zoo li no yog nitrogen oxide sensor, uas saib xyuas thiab tswj cov qib nitrogen oxide (NOx) tawm los ntawm lub tsheb lub cav.Hauv qhov blog no, peb yuav ua tib zoo saib qhov tseem ceeb ntawm tsheb NOx sensors thiab lawv qhov cuam tshuam rau kev ua haujlwm ntawm lub tsheb thiab ib puag ncig.
Nitrogen oxide sensors yog ib feem tseem ceeb ntawm lub tsheb thauj khoom emissions tswj system.Lawv ua haujlwm los ntawm kev ntsuas qhov concentration ntawm nitrogen oxide roj hauv cov kwj deg thiab xa cov ntaub ntawv mus rau lub tsheb lub cav tswj chav tsev (ECU).ECU tom qab ntawd siv cov ntaub ntawv no los kho cov cua-roj sib tov thiab txhim kho cov txheej txheem combustion, thaum kawg txo cov nitrogen oxide emissions tso rau hauv cov huab cua.
Ib qho txiaj ntsig tseem ceeb ntawm NOx sensors yog tias lawv pab cov tsheb thauj khoom ua raws li cov qauv tsim tawm nruj.Raws li kev tswj hwm ib puag ncig tau nruj dua, cov tuam txhab tsheb thauj khoom raug yuam kom txo qis cov pa phem tawm los ntawm lawv lub tsheb.NOx sensors pab cov tsheb thauj khoom kom ua tau raws li cov qauv no los ntawm kev soj ntsuam thiab tswj cov qib NOx, yog li txo qhov cuam tshuam ib puag ncig ntawm lawv txoj haujlwm.
Ntxiv rau cov txiaj ntsig ib puag ncig, NOx sensors pab txhim kho tag nrho kev ua haujlwm thiab kev ua haujlwm ntawm koj lub tsheb.Los ntawm muab cov ntaub ntawv ntawm lub sijhawm tiag tiag ntawm qib nitrogen oxide, cov sensors no ua rau ECU ua kom raug hloov kho rau lub cav ua haujlwm, yog li txhim kho roj kev lag luam thiab txo cov cav hnav.Tsis tsuas yog qhov no zoo rau ib puag ncig, tab sis nws tseem txuag cov neeg tsav tsheb cov nyiaj hauv daim ntawv ntawm kev txo cov roj noj thiab cov nqi tu.
Tsis tas li ntawd, NOx sensors ua lub luag haujlwm tseem ceeb hauv kev ua kom cov tsheb thauj khoom tau nruab nrog qhov zoo Selective Catalytic Reduction (SCR) system.SCR systems siv catalysts los hloov cov roj nitrogen oxide rau hauv cov pa tsis muaj nitrogen thiab dej vapor.Txawm li cas los xij, rau SCR system ua haujlwm tau zoo, nws tso siab rau qhov tseeb NOx sensor nyeem los kho qhov ntau npaum li cas ntawm cov kua roj (DEF) txhaj rau hauv cov kwj deg.Yog tias tsis muaj NOx sensor, qhov ua tau zoo ntawm SCR system yuav raug cuam tshuam, ua rau muaj NOx emissions ntau ntxiv thiab ua tsis tau raws li kev cai emissions.
Nws yog ib qho tseem ceeb rau cov neeg tsav tsheb thiab cov neeg saib xyuas lub nkoj kom paub txog qhov tseem ceeb ntawm NOx sensors thiab saib xyuas lawv qhov tseem ceeb thiab hloov thaum tsim nyog.Sij hawm dhau mus, NOx sensors tuaj yeem ua paug lossis ua tsis tiav vim raug rau qhov kub thiab txias thiab ua haujlwm hnyav.Kev tshuaj xyuas tsis tu ncua thiab hloov cov sensors no yog qhov tseem ceeb los xyuas kom meej tias koj lub tsheb thauj khoom txuas ntxiv ua haujlwm tau zoo thiab ua tau raws li cov qauv emissions.
Hauv cov ntsiab lus, tsheb NOx sensors yog ib qho tseem ceeb hauv kev txo cov pa phem los ntawm cov tsheb hnyav.Los ntawm kev saib xyuas tsis tu ncua thiab tswj cov qib nitrogen oxide, cov sensors no tsis tsuas yog pab cov tsheb thauj khoom ua raws li cov kev cai ib puag ncig tab sis kuj pab txhim kho kev ua haujlwm thiab kev ua haujlwm.Raws li kev lag luam tsheb thauj mus los tseem tseem ua qhov tseem ceeb rau kev ruaj ntseg, lub luag haujlwm ntawm NOx sensors hauv kev txo cov kev cuam tshuam ib puag ncig ntawm cov tsheb thauj khoom tsis tuaj yeem kwv yees.Cov neeg tsav tsheb yuav tsum nkag siab txog qhov tseem ceeb ntawm cov sensors no thiab nqis peev rau kev saib xyuas kom zoo thiab kev saib xyuas kom muaj txiaj ntsig rau lawv txoj haujlwm thiab ib puag ncig.
Post lub sij hawm: Mar-30-2024