Sensor ya azote (sensor ya NOx) ni sensor ikoreshwa mugutahura ibiri muri oxyde ya azote (NOx) nka N2O, oya, NO2, N2O3, N2O4 na N2O5 mumashanyarazi.Ukurikije ihame ryakazi, irashobora kugabanywamo amashanyarazi, optique nizindi sensor ya NOx.Ukoresheje uburyo bwiza bwa electrolyte yttrium oxyde doped zirconia (YSZ) ceramic ibikoresho bya ogisijeni ion, guhitamo catalitiki yumvikanisha ibintu bidasanzwe bya NOx byoroshye bya electrode kuri gaze ya NOx, no guhuza hamwe na sensor idasanzwe kugirango ubone ibimenyetso byamashanyarazi bya NOx, amaherezo, ukoresheje Ikimenyetso kidasanzwe cyerekana ibimenyetso hamwe nubuhanga bwa elegitoronike yo kugenzura, gaze ya NOx mumashanyarazi yimodoka iramenyekana kandi ihindurwamo ibimenyetso bisanzwe bya bisi ya bisi.
Imikorere ya azote ya ogisijeni
- Urwego rwo gupima NOx: 0-1500 / 2000 / 3000ppm NOx
- O2 igipimo cyo gupima: 0 - 21%
- Ubushyuhe bwa gaze ntarengwa: 800 ℃
- irashobora gukoreshwa munsi ya O2 (21%), HC, Co, H2O (<12%)
- Imigaragarire y'itumanaho: birashoboka
Umwanya wo gusaba wa NOx sensor
- moteri ya mazutu isohora imyuka ya SCR (yujuje ubuziranenge bwa IV, V na VI)
- moteri ya lisansi isohora sisitemu yo gutunganya gaze
- desulfurisation na denitration sisitemu yo kugenzura no kugenzura urugomero rw'amashanyarazi
Ibigize sensororo ya azote
Ibyingenzi byingenzi bigize sensor ya NOx ni ceramic yunvikana nibintu bya SCU
Intangiriro ya NOx sensor
Kubera ibidukikije bidasanzwe bikoreshwa mubicuruzwa, chip ceramic yatejwe imbere hamwe namashanyarazi.Imiterere iragoye, ariko ibyasohotse bisohoka birahagaze, igisubizo cyihuta, kandi ubuzima bwa serivisi ni burebure.Igicuruzwa cyujuje igenzura ryibintu byangiza imyuka ya NOx mugikorwa cyo gusohora imyuka ya mazutu.Ibice byoroshye bya ceramic birimo imyumbati yimbere yimbere, irimo zirconiya, alumina hamwe na Pt zitandukanye zicyuma cyayobora ibyuma.Igikorwa cyo gukora kiragoye, icapiro rya ecran rirakenewe, kandi birahuye nibisabwa muburyo bwa formula / gutuza no gucumura birakenewe
Kugeza ubu, hari ibyuma bitatu bisanzwe bya NOx ku isoko: igipande cya pin eshanu, igipande enye hamwe na bine bine
NOx sensor irashobora gutumanaho
Rukuruzi ya NOx ivugana na ECU cyangwa DCU binyuze mu itumanaho.Inteko ya NOx ihujwe imbere na sisitemu yo kwisuzumisha (sensor ya azote na ogisijeni irashobora kurangiza iyi ntambwe yonyine idasabye ECU cyangwa DCU kubara nitorojeni na ogisijeni).Ikurikirana uko ikora kandi igaburira ibimenyetso bya NOx kuri ECU cyangwa DCU binyuze muri bisi itumanaho.
Icyitonderwa cyo gushiraho sensor ya NOx
Ubushakashatsi bwa NOx bugomba gushyirwaho igice cyo hejuru cya catalizator yumuyoboro usohoka, kandi sensor ya sensor ntishobora kuba kumwanya muto wa catalizator.Irinde ogisijeni ya azote guturika mugihe uhuye namazi.Icyerekezo cyo kwishyiriraho ibice bya azote ya ogisijeni igenzura: shyiramo urwego rugenzura uhagaritse kugirango urinde neza.Ubushyuhe bukenewe bwa NOx sensor igenzura: sensor ya azote na ogisijeni ntishobora gushyirwaho ahantu hamwe nubushyuhe bukabije.Birasabwa kwirinda umuyoboro usohoka no hafi ya tank ya urea.Niba sensor ya ogisijeni igomba gushyirwaho hafi yumuyoboro usohoka hamwe na tank ya urea kubera imiterere yikinyabiziga cyose, hagomba gushyirwaho ingabo yubushyuhe hamwe nipamba yo kubika ubushyuhe, kandi hagomba gusuzumwa ubushyuhe bukikije aho bwashyizweho.Ubushyuhe bwiza bwo gukora ntabwo buri hejuru ya 85 ℃.
Igikorwa cyo gukingira ikime: kubera ko electrode ya sensor ya NOx ikenera ubushyuhe bwo hejuru kugirango ikore, sensor ya NOx ifite imiterere yubutaka imbere.Ubukorikori ntibushobora gukora ku mazi ku bushyuhe bwo hejuru, kandi biroroshye kwaguka no kwandura iyo buhuye n’amazi, bikavamo guturika.Kubwibyo, sensor ya NOx izaba ifite ibikoresho byo gukingira ikime, ni ugutegereza igihe runaka nyuma yo kubona ko ubushyuhe bwumuyoboro usohoka bugera ku giciro cyagenwe.ECU cyangwa DCU itekereza ko munsi yubushyuhe bwo hejuru, kabone niyo haba hari amazi kuri sensor ya NOx, izahuha byumye na gaze yubushyuhe bwo hejuru.
Kumenya no gusuzuma sensor ya NOx
Iyo sensor ya NOx ikora mubisanzwe, itahura agaciro ka NOx mumiyoboro isohoka mugihe nyacyo ikagaburira muri ECU / DCU binyuze muri bisi ya CAN.ECU ntisuzuma niba umuyaga wujuje ibisabwa mugushakisha igihe nyacyo NOx agaciro, ariko ikamenya niba agaciro ka NOx mumiyoboro isohoka irenze igipimo binyuze muri gahunda yo gukurikirana NOx.Kugirango ukore NOx detection, ibintu bikurikira bigomba kuba byujujwe:
Sisitemu yo gukonjesha ikora mubisanzwe idafite kodegisi.Nta kode yamakosa ya sensor ibidukikije.
Ubushyuhe bwamazi buri hejuru ya 70 ℃.Kumenya neza NOx bisaba ingero zigera kuri 20.Nyuma yo gutahura NOx imwe, ECU / DCU izagereranya amakuru yatanzwe: niba impuzandengo yagaciro yindangagaciro zose za NOx ziri munsi yagaciro kagenwe mugihe cyo gutahura, gutahura birarengana.Niba impuzandengo yagaciro yibintu byose byatoranijwe NOx iruta agaciro kashyizweho mugihe cyo gutahura, monitor izandika ikosa.Ariko, itara rya mil ntirizima.Niba igenzura ryananiranye inshuro ebyiri zikurikiranye, sisitemu izatanga raporo ya kode ya super 5 na super 7, kandi itara rya mil rizimya.
Iyo code 5 yamakosa irenze, itara rya mil rizaba ryaka, ariko itara ntirizagarukira.Iyo code 7 yikosa irenze, itara rya mil rizacanwa kandi sisitemu izagabanya itara.Umupaka wa torque washyizweho nuwakoze icyitegererezo.
Icyitonderwa: niyo imyuka irenze urugero ya moderi zimwe na zimwe zarasanwe, itara rya mil ntirizima, kandi imiterere yamakosa izerekanwa nkikosa ryamateka.Muri iki kibazo, birakenewe koza amakuru cyangwa gukora imikorere ya NOx yo gusubiramo.
Yunyi Electric yifashishije itsinda ryitsinda ryimyaka 22 yuburambe hamwe nubushobozi bukomeye bwa software R & D, Yunyi Electric yakoresheje itsinda ryinzobere mu gihugu imbere kandi ihuza umutungo w’ibigo bitatu bya R & D ku isi kugira ngo bigere ku guhanga udushya mu kugenzura sensor ya NOx Porogaramu ya algorithm hamwe na kalibrasi yibicuruzwa bihuye, kandi byakemuye ingingo zibabaza isoko, byacitsemo kwiharira ikoranabuhanga, biteza imbere iterambere hamwe na siyanse n'ikoranabuhanga, kandi byemeza ubuziranenge hamwe n'ubunyamwuga.Mugihe amashanyarazi ya Yunyi atezimbere umusaruro wa sensor ya NOx kurwego rwo hejuru, igipimo cy'umusaruro gikomeje kwaguka, kuburyo Yunyi azote na sensor ya ogisijeni yashyizeho igipimo cyiza mu nganda!
Igihe cyo kohereza: Nzeri-02-2022