IInzwa ye-N0xingenye yezingxenye ezibaluleke kakhulu ohlelweni lokwelashwa ngemuva.Ngesikhathi sokusebenza kwenjini, ukugxilwa kwe-N0x kugesi ephumayo yepayipi le-exhaust yenjini kuhlale kutholwa, ukuze kutholwe ukuthi ukukhishwa kwe-N0x kuhlangabezana nezidingo zokulawula.
Inzwa ye-N0x iyingxenye egcwalisiwe ehlanganisa i-induction probe, imojula yokulawula kanye nehhanisi lezintambo.Kunomsebenzi wokuzihlola ngaphakathi, futhi ulwazi lokuqapha lubikwa ku-ECU ngokuxhumana kwebhasi le-CAN.
1. Ukufakwa ngokomzimba kwenzwa ye-nitrogen oxide:
1. Inzwa ye-N0xizidingo zokushisa zokufaka: Ukufakwa kwenzwa ye-N0x kufanele kuqaphele ukuthi ungayifaki endaweni lapho izinga lokushisa liphezulu kakhulu.Kunconywa ukuba uhlale kude nepayipi yokukhipha kanye nobuso bebhokisi le-SCR, futhi isivikelo sokushisa kanye nekotini yokufakelwa kufanele kufakwe ngesikhathi sokufakwa.Futhi uhlole izinga lokushisa elizungeze ukufakwa kwenzwa ye-ECU, kunconywa ukuthi izinga lokushisa elilungile lokusebenza lenzwa ye-N0x akufanele libe ngaphezu kwama-degree angu-85.
2. Izintambo zocingo kanye nezidingo zokufakwa kwesixhumi: yenza umsebenzi omuhle wokulungisa nokuvimbela amanzi izintambo zocingo, gcina ulayini ukhululekile ngesikhathi sokufakwa kanye nokusetshenziswa kwenzwa ye-N0x, futhi lonke ihhanisi locingo alikwazi ukugotshwa kakhulu ukuvimbela izintambo zocingo. kusukela ekuweni ngenxa yamandla angaphandle amaningi noma amandla okwethuka, bese uzama ukugwema izintambo zokubopha futhi Inzwa ye-N0x iyavezwa.Uma kunezintambo zensimbi eziveziwe, kufanele zisongwe nge-tape ngokulandelana, futhi izihlanganisi zocingo akufanele zithintwe amafutha, udoti, udaka nabanye omagazini, kanye nokungangeni kwamanzi.Uma kungenjalo, inzwa izohluleka ngenxa yamanzi kuhhanisi lezintambo.
2. Isitayela sokubukeka senzwa ye-N0x nitrogen oxide: isizukulwane esingu-2.1 nesizukulwane esingu-2.8
1. Inzwa ye-NOx ine-12V kanye ne-24V.
2. Inzwa ye-NOx inamapulagi angu-4 namaphini angu-5.
3. Izinhlobo zamamodeli wesicelo se-nitrogen oxide yilezi: Cummins, Weichai, Yuchai, Sinotruk, njll.
3. Inqubo yokusebenza yenzwa ye-nitrogen oxide ichazwa ngokuningiliziwe:
Umsebenzi oyinhloko wenzwa ye-N0x ukuthola ukuthi inani lokugxilisa ingqondo le-N0x kugesi ephumayo liyaweqa yini umkhawulo, futhi uhlole ukuthi i-catalytic converter muffler iyaguga noma ihlakaziwe.
IInzwa ye-N0xixhumana neyunithi yokulawula ngebhasi le-CAN futhi inomsebenzi wayo wokuxilonga.Ngemuva kokuthi inzwa izihlole ngokwayo ngaphandle kwephutha, iyunithi yokulawula iyalela i-heater ukuthi ishise inzwa ye-N0x.Ngesikhathi senqubo yokushisa, uma isignali yenzwa ingatholakali ngemuva komkhawulo wesikhathi sokushisa esiphezulu, kunqunywa ukuthi ukushisa kwenzwa akuthembeki.
1. "Asikho Isifunda Samandla":
A. Kulesi simo, amandla angu-24V awanikezwa inzwa.
B. Lesi yisimo esivamile senzwa lapho inkinobho yokuvutha yomzimba icishiwe.
C. Ngalesi sikhathi, inzwa ayinakho okukhiphayo.
2. “Inikwe amandla – inzwa ayisebenzi”:
A. Ngalesi sikhathi, amandla anikezwe inzwa ngokusebenzisa iswishi yokubasa.
B. Inzwa ingena esigabeni sokushisa.Inhloso yokushisisa kuqala ukuhwamulisa wonke umswakama osekhanda lenzwa.
C. Isiteji sokushisa kuqala sizohlala cishe imizuzwana engama-60.
3. Uma iswishi yokubasa ivuliwe, inzwa ye-N0x izoshisa kufika ku-100°C.
4. Bese ulinda i-ECM ukuthi ikhiphe isignali yezinga lokushisa "yezinga lamazolo" (Iphuzu lamazolo):
Izinga lokushisa elithi "iphuzu lamazolo" liyizinga lokushisa lapho kungeke kube khona umswakama ohlelweni lwe-exhaust olungalimaza inzwa ye-N0x.Izinga lokushisa lendawo yamazolo lisethelwe ku-120°C, futhi izinga lokushisa yinani elikalwa inzwa yokushisa ye-outlet ye-EGP yesithenjwa.
5. Ngemuva kokuthi inzwa ithole isignali yokushisa yamazolo evela ku-ECM, inzwa izoshisa ngokwayo ekushiseni okuthile (okungaphezu kuka-800 ° C) - Qaphela: Uma ikhanda lenzwa lihlangana namanzi ngalesi sikhathi, inzwa izoba ezilimele.
6. Ngemuva kokushisa ekushiseni okusebenzayo, inzwa iqala ukulinganisa ngokujwayelekile.
7. Inzwa ye-nitrogen oxygen ithumela inani elilinganisiwe le-nitrogen oxide ku-ECM ngebhasi le-CAN, futhi injini i-ECM iqapha ukukhishwa kwe-nitrogen oxide ngezikhathi ezithile ngalolu lwazi.
4. isimiso sokusebenza senzwa ye-nitrogen oxide:
Umgomo wokusebenza: Isici esiyinhloko senzwa ye-nitrogen ne-oksijini yishubhu le-ceramic le-Zr02 zirconia lesikebhe, okuyi-electrolyte eqinile, kanye nama-electrode angenazimbobo zeplatinamu (Pt) afakwa ezinhlangothini zombili.Uma ishiselwa ezingeni elithile lokushisa (600-700 ° C), ngenxa yomehluko ekugxilweni kwe-oxygen ezinhlangothini zombili, i-zirconia izobhekana nokusabela kwamakhemikhali, ukunyakaza kokushaja kuzokwenzeka ezinhlangothini zombili ze-electrode, futhi ukushaja okuhambayo kuzokhiqiza okwamanje. .Ngokosayizi wamanje okhiqiziwe, ukugxiliswa komoyampilo kuyaboniswa, futhi ukugxiliswa komoyampilo kubuyiselwa kusilawuli ukuze sibale ukugxiliswa komoyampilo we-nitrogen wamanje futhi sikudlulisele ku-ECU ngebhasi le-CAN.
5. Umsebenzi wenzwa wokuzivikela kanye nezinyathelo zokuphepha:
Uma ukuvutha kuvuliwe, inzwa ye-N0x izoshisa kufika ku-100°C.Bese ulinda i-DCU ukuthi ithumele isignali yezinga lokushisa "yephuzu lamazolo".Uma inzwa ithola isignali yezinga lokushisa lamazolo ethunyelwe yi-DCU, inzwa izoshisa ngokwayo ekushiseni okuthile (ubukhulu obungu-800 ° C. Qaphela: Uma inzwa ihlangana namanzi ngalesi sikhathi, izobangela inzwa eyonakele)
Umsebenzi wokuvikela indawo yamazolo: Ngenxa yokuthi inzwa ye-nitrogen oxygen ngokwayo idinga izinga lokushisa eliphezulu lapho i-electrode isebenza, inzwa ye-nitrogen oxygen inesakhiwo se-ceramic ngaphakathi.I-ceramic izoqhuma lapho ihlangana namanzi ezingeni lokushisa eliphezulu, ngakho-ke inzwa ye-nitrogen oxygen izobeka umsebenzi wokuvikela iphuzu lamazolo.Umsebenzi walo msebenzi ukulinda isikhathi esithile ngemva kokutholwa kwezinga lokushisa lokukhipha umoya lifinyelela izinga elithile lokushisa.Inguqulo yekhompiyutha ikholelwa ukuthi ekushiseni okuphezulu okunjalo, ngisho noma kukhona amanzi ku-sensor ngemva kwesikhathi eside kangaka, ingashaywa igesi ekhishwayo eshisayo.
6. Olunye ulwazi lwenzwa ye-nitrogen ne-oxygen:
Into ebizwa ngokuthi "Gortex"* isetshenziswa ku-Inzwa ye-NOxukuqinisekisa ukuthi umoya omusha ungena endaweni yokuqhathanisa yereferensi ngaphakathi kwenzwa.Ngakho-ke, kubaluleke kakhulu ukuqinisekisa ukuthi lesi sikhala asivimbeli, futhi kuyadingeka ukugwema izinto zangaphandle ukuvimba noma ukumboza lesi sikhala ngesikhathi sokufakwa.Ngaphezu kwalokho, zama ukuqinisekisa ukuthi inzwa ifakiwe ngemva kokuba umzimba upendwe futhi upende.Uma umdwebo womzimba kanye nomsebenzi wokudweba kufanele wenziwe ngemuva kokufakwa kwenzwa, ama-vents we-sensor kumele avikelwe kahle, futhi izinto ezivikelayo kufanele zisuswe ngemuva kokuqedwa komsebenzi wokudweba nokudweba ukuze kuqinisekiswe ukusebenza okujwayelekile kwenzwa. .
Isikhathi sokuthumela: Jul-09-2022