I-catalysis yeendlela ezintathu.
I-catalysis yeendlela ezintathu ibhekisela ekuguqulweni kweegesi ezinobungozi ezifana ne-CO, i-HC kunye ne-NOx ukusuka kwi-automobile exhaust ibe yi-carbon dioxide engenabungozi, amanzi kunye ne-nitrogen ngokusebenzisa i-oxidation kunye nokunciphisa. Inxalenye yomphathi we-catalyst yeendlela ezintathu yisiqwenga se-porous ceramic material, efakwe kwipayipi ekhethekileyo yokukhupha. Ibizwa ngokuba ngumthwali ngenxa yokuba ayithathi nxaxheba kwi-catalytic reaction ngokwayo, kodwa igutyungelwe ngeentsimbi ezinqabileyo ezifana neplatinam, i-rhodium, i-palladium kunye nomhlaba onqabileyo. Sesona sixhobo sibaluleke kakhulu sokuhlanjululwa kwangaphandle esifakwe kwi-exhaust system yemoto.
Umgaqo osebenzayo wendlela ezintathu zokuguqula i-catalytic ngulo: xa umbhobho wobushushu obuphezulu wemoto udlula kwisixhobo sokucoca, isicoci kwindlela ezintathu zokuguqula i-catalytic siya kuphucula ukusebenza kweegesi ezintathu ze-CO, i-hydrocarbons kunye ne-NOx, kwaye iyikhuthaze ukuba ingene kwi-oxidation-ukunciphisa i-chemical reaction, apho i-CO engena-oxidized kwi-oxidized ye-carbon dioxide kwiqondo lokushisa eliphezulu; I-Hydrocarbons i-oxidized emanzini (H2O) kunye ne-carbon dioxide kumaqondo aphezulu; I-NOx iyancitshiswa ibe yinitrogen kunye neoksijini. Iigesi ezintathu eziyingozi ziba ziigesi ezingenabungozi, ukuze umbhobho wemoto ucocwe. Kucingelwa ukuba kusekho ioksijini ekhoyo, umlinganiselo wamafutha omoya ufanelekile.
Ngenxa yokuba i-fuel iqulethe i-sulfure, i-phosphorus kunye ne-agent ye-antiknock ye-MMT iqulethe i-manganese, la macandelo ekhemikhali aya kwenza ii-chemical complexes kumphezulu we-oxygen sensor kunye nangaphakathi kwe-converter ye-catalytic yeendlela ezintathu kunye negesi ephumayo ekhutshwe emva kokutsha. Ukongezelela, ngenxa yeendlela zokuqhuba kakubi zomqhubi, okanye ixesha elide lokuqhuba kwiindlela ezixineneyo, injini isoloko ikwimeko yokutsha engaphelelanga, eya kwenza i-carbon accumulation in the sensor oxygen and three-way catalytic converter. Ukongezelela, iindawo ezininzi zelizwe zisebenzisa i-petroli ye-ethanol, enefuthe elinamandla lokucoca, iya kuhlambulula ukungcola kwigumbi lokutsha kodwa ayikwazi ukubola nokutshisa, ngoko ke ngokukhutshwa kwegesi yokukhupha, oku kungcola kuya kufakwa kumphezulu we-oxygen sensor kunye ne-converter catalytic converter. Kungenxa yezinto ezininzi ezithi emva kokuba imoto iqhutywe kangangexesha elithile, ukongeza kuqokelelo lwekhabhoni kwivalve yokungena kunye negumbi lokutsha, oko kuya kubangela isivamvo se-oksijini kunye nokusilela kweendlela ezintathu zokutyhefa, ukuvaleka kweendlela ezintathu kunye nevalve ye-EGR ivalwe yintlenga kunye nokunye ukusilela, okukhokelela ekusetyenzisweni kwamafutha, ukonyuka kwamandla kunye nokunyuka kwamandla enjini. umgangatho.
Ukugcinwa kwe-injini yesiqhelo yesiqhelo kuthintelwe kugcino olusisiseko lwenkqubo yokuthambisa, inkqubo yokuthatha kunye nenkqubo yokubonelela ngamafutha, kodwa ayinakuhlangabezana neemfuno zogcino olubanzi lwenkqubo yokuthambisa injini yale mihla, inkqubo yokuthatha, inkqubo yokubonelela ngamafutha kunye nenkqubo yokukhupha, ngakumbi iimfuno zokugcinwa kwenkqubo yokulawula ukukhutshwa. Ngoko ke, nangona isithuthi sigcinwa ngokuqhelekileyo ixesha elide, kunzima ukuphepha iingxaki ezingentla.
Ukuphendula kwiintsilelo ezinjalo, amanyathelo athathwe ngamashishini olondolozo ahlala ethatha indawo ye-oxygen sensors kunye ne-catalytic converters ezintathu, kodwa ngenxa yengxaki yeendleko zokutshintsha, iingxabano phakathi kwamashishini olondolozo kunye nabathengi bayaqhubeka. Ngokukodwa, ezo zinzwa ze-oksijini kunye neendlela ezintathu ze-catalysts ezingakhange zitshintshwe ubomi babo obuncedo zihlala zigxininisa kwiingxabano, kwaye abathengi abaninzi bade bathi ingxaki kumgangatho wemoto.
Ukuze kulungiswe le ntloko ebuhlungu kwaye kunzima ukusombulula ingxaki yamashishini okuvelisa iimoto, amashishini olondolozo, amasebe olawulo lokugcinwa kunye namasebe okukhusela okusingqongileyo, amaziko ophando lwezenzululwazi afanelekileyo aphanda kwaye ayila iseti entsha yeendlela zokugcinwa kwe-injini yesiqhelo kunye nobuchwepheshe ngenxa yeziphene zeendlela zokugcinwa kwe-injini yesiqhelo.
Umxholo wobu buchwepheshe obutsha kukuba: xa uqhuba ukugcinwa rhoqo kubathengi, ngaphezu kokutshintsha ioli kunye nokugcinwa kwezihlunu ezintathu, ukucocwa kunye nokugcinwa kwendlela yokuguqula i-catalytic yeendlela ezintathu zongezwa. Iimpawu zayo zobuchwephesha zezi: Indibaniselwano ye-Organic "yokuhlola inkqubo yokulawula igesi yokukhupha igesi kunye nokugcinwa kwezinto" kunye neendlela zokugcinwa kwe-injini yesiqhelo ukwenza iindlela zokugcinwa kwe-injini yesiqhelo azikwazi ukuhlangabezana neemfuno zeziphene zokugcinwa kwe-injini yale mihla, Isisombululo sengxaki yokusebenza ngokungaqhelekanga kwenkqubo yokulawula ukukhutshwa kwe-injini yokhuseleko lokusingqongileyo iya kutshintshwa ibe yinkqubo esebenzayo yothintelo lolawulo olungaqhelekanga lwe-injini.
I-1, ukuba kukho umonakalo owenziwe ngoomatshini, i-sintering eshushu, i-mileage engaphezu kweekhilomitha ezingama-200,000, i-lead poisoning, isiphumo sokucoca asisikhulu.
2, njenge-injini embindini wokucoca, qhawula ngokukhawuleza i-injini kunye ne-hose yokudibanisa izixhobo, kwaye uvale ivalve yokuhamba. Qalisa kwakhona i-injini, ingasebenzi kakuhle, inokudityaniswa kwaye ihlengahlengiswe.
3, khangela ukuba umxube womxube ufanelekile na ukuqinisekisa ukuba ulwelo lunokuphefumlelwa kwi-inlet inkungu.
I-4, ukucoca iindawo ezintathu kufuneka zihlambuluke emva kwe-throttle, i-fuel nozzle kunye negumbi lokutshisa.
I-5, ngexesha lenkqubo yokucoca, isantya sokungenzi nto akufanele sibe phezulu kakhulu ukuphepha ukugqithiswa kwe-converter ye-catalytic yeendlela ezintathu.
6, musa ukulahla ulwelo lokucoca kwipeyinti yesithuthi.
I-7, indawo yokusebenza kude nomthombo womlilo, yenza umsebenzi omhle wamanyathelo omlilo.
Ukuba ufuna ukwazi ngakumbi, qhubeka ufunda amanye amanqaku kule ndawo!
Nceda usibize ukuba ufuna iimveliso ezinjalo.
Zhuo Meng Shanghai Auto Co., Ltd. uzibophelele ekuthengiseni MG & MAUXS iinxalenye auto wamkelekile ukuthenga.
