Nitrogen oxides (NOx) inokuvadza inosvibisa inogadzirwa nekupisa kwemafuta emafuta mumotokari uye maindasitiri maitiro.Izvi zvinosvibisa zvinogona kukanganisa hutano hwevanhu uye nharaunda, zvichikonzera matambudziko ekufema uye kuumbwa kwehutsi.Kudzikisa kuburitswa kwenitrogen oxide, mota zhinji nemidziyo yemumaindasitiri ine nitrogen oxide sensors yekutarisa nekudzora izvi zvinosvibisa zvinosvibisa.
Nitrogen oxide sensors chikamu chakakosha chemazuva ano emission control masisitimu sezvo achibatsira kuona mota nemidziyo yemumaindasitiri inoshanda mukati memiganhu yekudzora.Masensa aya anoshanda nekuona kuwanda kwenitrogen oxides mukupopota uye nekupa mhinduro kune injini yekudzora system, ichibvumira kuti igadzirise kuwedzera kupisa uye kuderedza nitrogen oxide emissions.
Kune akawanda akasiyana marudzi eNOx sensors, kusanganisira chemiluminescence sensors uye electrochemical sensors.Chemiluminescence sensors inoshanda nekuyera mwenje unoburitswa panguva yekuchinja kwemakemikari pakati pe nitrogen oxides uye reactive magasi, nepo electrochemical sensors inoshandisa maitiro emakemikari kugadzira chiratidzo chemagetsi chinoenzana nenitrogen oxide concentration.
Rimwe rematambudziko akakosha mukugadzira NOx sensors kuve nechokwadi chekururama kwavo uye kuvimbika mukuona yakaderera mazinga eNOx mumagasi akaomarara.Pamusoro pezvo, masensa anofanirwa kukwanisa kumira tembiricha yakakwira uye nehutsinye mamiriro anowanikwa mune exhaust system, achivaita chinhu chakakosha cheemissions control system.
Mumakore achangopfuura, kufambira mberi mune tekinoroji tekinoroji kwakatungamira mukuvandudzwa kweimwe yepamusoro uye inonzwira tsitsi NOx sensors.Semuenzaniso, mamwe ma sensors ikozvino anosanganisira selective catalytic reduction (SCR) catalysts, iyo inogona kusarudza nekusarudza nitrogen oxides kuita nitrogen uye mvura uchishandisa zvinoderedza zvigadziriso seammonia.Izvi zvinobvumira kunyatso kudzora kweNOx emissions, kunyanya mumajini edhiziri, anozivikanwa nekugadzira mazinga epamusoro eNOx.
Pamusoro pezvo, kuunzwa kwemotokari onboard diagnostics (OBD) zvinodiwa zvakakurudzira kuvandudzwa kweakanyanya kuomarara NOx sensors.Aya ma sensors ave kukwanisa kupa data-chaiyo-nguva kumotokari yeOBD system, ichibvumira kutarisisa kwakaringana uye kuzivisa kwekubuda kweNOx.Izvi zvinobatsira kuona kuti mota inoenderana nezviyero zvinoburitswa uye inobatsira kuona chero zvingangoitika neiyo emission control system.
Sezvo hurumende dzepasirese dzichiramba dzichiomesa mirau paNOx emissions, kudiwa kweakavimbika uye kwakaringana NOx sensors inotarisirwa kukura.Izvi zvakakonzera kuwedzera kutsvagisa uye kusimudzira mune sensor tekinoroji ine tarisiro yekuvandudza sensor performance, kusimba uye mutengo-kubudirira.
Mukupedzisa, NOx sensors inoita basa rakakosha mukudzikisa zvinokuvadza zvinobuda kubva kumotokari nemidziyo yemaindasitiri.Sezvo tekinoroji inofambira mberi, masensa aya anova akanyanya, akavimbika uye akaomarara, achibvumira kudzora kuri nani uye kutarisa kweNOx kubuda.Sezvo kukosha kwekudzikisa kuburitswa kweNOx kuri kuramba kuchiwedzera, kuvandudzwa kweiyo NOx sensors kuchabatsira kuwana kuchena, hutano hwemhepo kuzvizvarwa zvichauya.
Nguva yekutumira: Zvita-09-2023