IN0x isivamvolelinye lawona malungu abalulekileyo kwinkqubo yonyango lwasemva.Ngethuba lokusebenza kwe-injini, i-N0x yoxinaniso kwi-gas yokukhupha i-injini yokukhupha ipayipi ihlala ibonwa, ukuze ibone ukuba ukukhutshwa kwe-N0x kuhlangabezana neemfuno zokulawula.
I-sensor ye-N0x yinxalenye egqityiweyo equka i-probe ye-induction, imodyuli yokulawula kunye ne-wiring harness.Kukho umsebenzi wokuzixilonga ngaphakathi, kwaye ulwazi lokubeka iliso luxelwe kwi-ECU ngonxibelelwano lwebhasi ye-CAN.
1. Ufakelo ngokwasemzimbeni lwenzwa yenitrogen oxide:
1. N0x isivamvoiimfuno zeqondo lokushisa lokufakela: Ukufakwa kwe-sensor ye-N0x kufuneka uqaphele ukuba ungayifaki kwindawo apho iqondo lokushisa liphezulu kakhulu.Kunconywa ukuba uhlale kude nombhobho wokukhupha kunye nomphezulu webhokisi le-SCR, kunye nesikhuselo sokushisa kunye nekotoni ye-insulation kufuneka ifakwe ngexesha lokufakwa.Kwaye uvavanye ubushushu obujikeleze ukufakwa kwe-sensor ECU, kucetyiswa ukuba ubushushu obuphezulu bokusebenza kwe-N0x sensor akufanele bube ngaphezulu kwe-85 degrees.
2. I-wire harness kunye neemfuno zokufakela isiqhagamshelo: yenza umsebenzi omhle wokulungisa kunye nokukhusela amanzi kwintambo yocingo, gcina umgca ukhululekile ngexesha lofakelo kunye nokusetyenziswa kwenzwa ye-N0x, kwaye yonke intambo yocingo ayikwazi ukugoba kakhulu ukukhusela intambo yocingo. ukusuka ekuweni ngenxa yamandla angaphandle okanye amandla othusayo, kwaye uzame ukuphepha intambo yocingo kunye ne-N0x sensor ibonakaliswe.Ukuba kukho iingcingo zetsimbi eziveziweyo, kufuneka zisongelwe ngeteyiphu ngokulandelanayo, kwaye iintambo zocingo akufanele zichaphazeleke ngeoli, inkunkuma, udaka kunye namanye amaphephancwadi, kunye nokungangeni kwamanzi.Ngaphandle koko, inzwa iya kusilela ngenxa yamanzi kwi-wiring harness.
2. Isitayela sokubonakala kwe-N0x i-nitrogen oxide sensor: i-2.1 isizukulwana kunye ne-2.8 isizukulwana
1. Inzwa ye-NOx ine-12V kunye ne-24V.
2. Inzwa ye-NOx ine-4-pin kunye ne-5-pin plugs.
3. Iimpawu zeemodeli zesicelo se-nitrogen oxide zezi: Cummins, Weichai, Yuchai, Sinotruk, njl.
3. Inkqubo yokusebenza ye-nitrogen oxide sensor ichazwe ngokweenkcukacha:
Umsebenzi oyintloko we-sensor ye-N0x kukubona ukuba ixabiso le-concentration ye-N0x kwi-gas yokukhupha idlula umda, kwaye uhlolisise ukuba i-catalytic converter muffler iyaguga okanye ichithwa.
IN0x isivamvoinxibelelana neyunithi yolawulo ngebhasi ye-CAN kwaye inomsebenzi wayo wokuxilonga.Emva kokuba i-sensor ihlolisise ngaphandle kwephutha, iyunithi yokulawula iyalela i-heater ukutshisa inzwa ye-N0x.Ngethuba lenkqubo yokufudumeza, ukuba isignali ye-sensor ayifumanekanga emva kokuba umda wexesha lokufudumala ugqithiswe, kunqunywe ukuba ukufudumeza kwenzwa akuthembeki.
1. "Akukho Mbuso waMandla":
A. Kule meko, amandla e-24V awanikezelwanga kwinzwa.
B. Le yimeko eqhelekileyo yenzwa xa i-ignition switch of the body icinyiwe.
C. Ngeli xesha, inzwa ayinayo imveliso.
2. “Inamandla – isivamvo asisebenzi”:
A. Ngeli xesha, amandla anikwe kwi-sensor ngokusebenzisa i-ignition switch.
B. Inzwa ingena kwinqanaba lokufudumala.Injongo yokufudumeza kwangaphambili kukukhupha konke ukufuma kwintloko yenzwa.
C. Inqanaba lokufudumala liya kuhlala malunga nemizuzwana engama-60.
3. Xa i-ignition switch ivuliwe, i-sensor ye-N0x iya kutshisa ukuya kwi-100 ° C.
4. Emva koko ulinde i-ECM ukuba ikhuphe uphawu lweqondo lokushisa "lombethe" (indawo yombethe):
Iqondo lokushisa "lombethe" liqondo lokushisa apho akuyi kubakho umswakama kwinkqubo yokukhupha enokuthi yonakalise inzwa ye-N0x.Ubushushu bendawo yombethe okwangoku bubekwe kwi-120 ° C, kwaye ixabiso lobushushu lixabiso elilinganiswe yinzwa yobushushu be-outlet ye-reference EGP.
5. Emva kokuba i-sensor ifumene umqondiso wokushisa kombethe kwi-ECM, inzwa iya kuzitshisa kwiqondo lokushisa elithile (ubukhulu be-800 ° C) - Qaphela: Ukuba intloko yenzwa idibana namanzi ngeli xesha, inzwa iya kuba yonakele.
6. Emva kokufudumeza kwiqondo lokushisa elisebenzayo, inzwa iqala ukulinganisa ngokuqhelekileyo.
7. Inzwa ye-nitrogen oksijini ithumela ixabiso le-nitrogen oxide elilinganisiweyo kwi-ECM ngebhasi ye-CAN, kwaye injini ye-ECM ibeka esweni ukukhutshwa kwe-nitrogen oxide ngezikhathi ezithile ngolu lwazi.
4. umgaqo osebenzayo we-nitrogen oxide sensor:
Umgaqo osebenzayo: Eyona nto ingundoqo ye-nitrogen kunye ne-oxygen sensor yi-Zr02 zirconia ceramic ityhubhu ye-ferry, eyi-electrolyte eqinile, kunye ne-porous platinum (Pt) i-electrode i-sintered kumacala omabini.Xa ukufudumala kwiqondo lokushisa elithile (600-700 ° C), ngenxa yokwahlukana kwe-oksijini yoxinaniso kumacala omabini, i-zirconia iya kungena kwi-chemical reaction, intshukumo yentlawulo iya kwenzeka kumacala omabini e-electrode, kwaye intlawulo ehambayo iya kuvelisa ngoku. .Ngokobungakanani bexesha eliveliswayo, i-oxygen concentration ibonakaliswe, kwaye i-oxygen concentration ibuyiselwa kumlawuli ukubala i-nitrogen oxygen concentration yangoku kwaye uyithumele kwi-ECU ngebhasi ye-CAN.
5. Umsebenzi wenzwa wokuzikhusela kunye nezilumkiso:
Xa i-ignition ivuliwe, inzwa ye-N0x iya kutshisa ukuya kwi-100 ° C.Emva koko ulinde i-DCU ukuba ithumele uphawu lobushushu "lombethe".Xa i-sensor ifumana uphawu lobushushu bombethe oluthunyelwe yi-DCU, inzwa iya kuzitshisa kwiqondo lokushisa elithile (ubuninzi be-800 ° C. Qaphela: Ukuba inzwa idibana namanzi ngeli xesha, iya kubangela inzwa eyonakalisiweyo)
Umsebenzi wokukhusela i-Dew point: Ngenxa yokuba i-nitrogen oxygen sensor ngokwayo idinga ukushisa okuphezulu xa i-electrode isebenza, i-nitrogen oxygen sensor inesakhiwo se-ceramic ngaphakathi.I-ceramic iya kuqhuma xa idibana namanzi kwiqondo lokushisa eliphezulu, ngoko inzwa ye-nitrogen oxygen iya kubeka umsebenzi wokukhusela umbethe.Umsebenzi walo msebenzi kukulinda ixesha elithile emva kokufunyanwa kweqondo lokushisa eliphumayo lifikelela kwiqondo elithile.Inguqulo yekhompyutheni ikholelwa ukuba kwiqondo lokushisa eliphezulu, nokuba kukho amanzi kwi-sensor emva kwexesha elide, inokuvuthelwa yome ngegesi etshisayo yokukhupha.
6. Olunye ulwazi lwe-nitrogen kunye ne-oxygen sensor:
Isixhobo esibizwa ngokuba yi "Gortex"* sisetyenziswa kwiUluvo lwe-NOxukuqinisekisa ukuba umoya omtsha ungena kwindawo yokuthelekisa ireferensi ngaphakathi kwinzwa.Ngoko ke, kubaluleke kakhulu ukuqinisekisa ukuba le venti ayiphazamiseki, kwaye kuyimfuneko ukuphepha ukuthintela izinto zangaphandle okanye ukuvala le vent ngexesha lofakelo.Ukongezelela, zama ukuqinisekisa ukuba inzwa ifakwe emva kokuba umzimba upeyintwe kwaye upende.Ukuba umzobo womzimba kunye nomsebenzi wokupeyinta kufuneka uqhutywe emva kokuba inzwa ifakwe, i-vants ye-sensor kufuneka ikhuselwe ngokufanelekileyo, kwaye izinto ezikhuselayo kufuneka zisuswe emva kokuba umzobo kunye nomsebenzi wokupenda ugqityiwe ukuqinisekisa ukusebenza okuqhelekileyo kwenzwa. .
Ixesha lokuposa: Jul-09-2022