Ngesikhathi sokusebenza kwenjini, i-exhaust yayo eningi ishisa kuze kufike kumadigri angamakhulu amaningana, okuyingozi endaweni enyinyekile yenjini.Ukuxazulula le nkinga, izimoto eziningi zisebenzisa i-exhaust isihlangu sokushisa - konke mayelana nale mininingwane kuchazwe kulesi sihloko.
Inhloso yesikrini se-exhaust ehlukahlukene
Njengoba wazi, izinjini ezivuthayo zangaphakathi zisebenzisa amandla akhishwe ngesikhathi sokusha kwengxube ye-fuel-air.Le ngxube, kuye ngokuthi uhlobo lwenjini kanye nezindlela zokusebenza, zingashisa emazingeni okushisa afinyelela ku-1000-1100 ° C. Amagesi akhiphayo aphumela futhi anokushisa okuphezulu, futhi lapho edlula emfucumfucwini eminingi, ayibeka ekushiseni okukhulu.Izinga lokushisa lokukhipha amandla enjini ehlukahlukene lingasukela ku-250 kuye ku-800 ° C!Yingakho ama-manifolds enziwe ngamamaki akhethekile ensimbi, futhi ukwakheka kwawo kunikeza ukumelana okuphezulu nokushisa.
Kodwa-ke, ukushisa i-multifold exhaust kuyingozi hhayi yona kuphela, kodwa futhi nezingxenye ezizungezile.Phela, i-manifold ayitholakali ku-void, kodwa ekamelweni le-injini, lapho eduze kwayo kunezingxenye eziningi zenjini, izintambo, izingxenye zikagesi kanye nezintambo, futhi ekugcineni, izingxenye zomzimba zemoto.Ngomklamo ongaphumelelanga noma emakamelweni enjini aminyene, ukushisa ngokweqile kwe-multifold exhaust kungaholela ekuncibilikeni kwe-wiring insulation, ukuguqulwa kwamathangi epulasitiki nokuwa kwezingxenye zomzimba ezinodonga oluncane, ukwehluleka kwezinye izinzwa, futhi ezimweni ezinzima kakhulu, ngisho emlilweni.
Ukuxazulula zonke lezi zinkinga, izimoto eziningi zisebenzisa ingxenye ekhethekile - i-exhaust manifold heat shield.Isikrini sigxunyekwe ngaphezu kwe-multifold (njengoba ngokuvamile azikho izingxenye ezingaphansi kwe-manifold, ngaphandle kwama-tie rods noma isigxivizo), sibambezela imisebe ye-infrared futhi yenze kube nzima ku-air convection.Ngakho-ke, ukwethulwa komklamo olula kanye nengxenye engabizi kusiza ukugwema izinkinga eziningi, ukuvikela izingxenye zenjini ekuqhekekeni, kanye nemoto emlilweni.
Izinhlobo kanye nomklamo we-exhaust izihlangu zokushisa eziningi
Njengamanje, kunezinhlobo ezimbili eziyinhloko zokukhipha izikrini eziningi:
- Izikrini zensimbi ngaphandle kokushisa okushisayo;
- Izikrini ezinesendlalelo esisodwa noma ngaphezulu zokufakwa kwe-thermal.
Izikrini zohlobo lokuqala zingamashidi ensimbi anesitembu anomumo oyinkimbinkimbi amboza i-exhaust manifold.Isikrini kufanele sibe nabakaki, izimbobo noma ama-eyelets ukuze kufakwe enjinini.Ukwandisa ukuthembeka kanye nokumelana nokuguquka lapho kushisa, izigxivizo zigxivizwa esibukweni.Futhi, izimbobo zokungenisa umoya zingenziwa esikrinini, eziqinisekisa imodi evamile yokushisa yokusebenza komqoqi, kuyilapho kuvimbela ukushisa ngokweqile kwezingxenye ezizungezile.
Izikrini zohlobo lwesibili nazo zinesisekelo esigxivizwe sensimbi, esibuye simbozwe ngesendlalelo esisodwa noma ngaphezulu se-high-temperature resistant thermal insulation.Imvamisa, amashidi amancanyana e-mineral fiber material ambozwe ngeshidi lensimbi (ucwecwe) abonisa imisebe ye-infrared asetshenziswa njenge-thermal insulation.
Zonke izikrini zenziwe ngendlela yokulandela ukuma kwe-exhaust manifold noma ukumboza indawo yayo ephezulu.Izikrini ezilula cishe ziyishidi lensimbi eliyisicaba elimboza umqoqi ovela phezulu.Izikrini eziyinkimbinkimbi ngokwengeziwe ziphinda umumo namakhontosi wesiqoqi, okugcina isikhala endaweni yenjini kuyilapho kuthuthukisa izici zokuvikela ukushisa.
Ukufakwa kwezikrini kwenziwa ngokuqondile ku-multifold (imvamisa) noma ibhulokhi yenjini (imvamisa kakhulu), ama-bolts angu-2-4 asetshenziselwa ukufakwa.Ngalokhu kufakwa, isikrini asihlangani nezinye izingxenye zenjini nengxenye yenjini, okwandisa izinga lokuvikelwa kwayo futhi sihlangabezane nezidingo zokuphepha komlilo.
Ngokuvamile, izikrini eziningi ezikhipha amandla zilula kakhulu ekwakhiweni futhi zithembekile, ngakho-ke zidinga ukunakwa okuncane.
Izinkinga zokunakekelwa kanye nokushintshwa kwezikrini ze-exhaust eziningi
Ngesikhathi sokusebenza kwemoto, isikrini se-exhaust manifold singaphansi kwemithwalo ephezulu yokushisa, okuholela ekugqokeni kwayo okujulile.Ngakho-ke, isikrini kufanele sihlolwe ngezikhathi ezithile ubuqotho baso - akufanele singabi nasici kanye nomunye umonakalo, kanye nokugqwala ngokweqile.Kufanele kuqashelwe ngokukhethekile izindawo lapho isikrini sifakwe khona, ikakhulukazi uma singabakaki.Iqiniso liwukuthi amaphuzu okuxhumana nomqoqi angaphansi kokushisa okukhulu kakhulu, ngakho-ke asengozini enkulu yokulimala.
Uma kukhona umonakalo noma ukucekelwa phansi kutholwa, isikrini kufanele sishintshwe.Lesi sincomo sisebenza ikakhulukazi ezimotweni lapho isikrini se-exhaust manifold sifakwe ngokujwayelekile (kusuka efektri).Ukushintshwa kwengxenye kwenziwa kuphela enjini ebandayo, ukwenza umsebenzi, kwanele ukukhulula amabhawodi abambe isikrini, susa ingxenye endala bese ufaka entsha ncamashi.Ngenxa yokuchayeka njalo emazingeni okushisa aphezulu, ama-bolts "anamathele", ngakho-ke kunconywa ukuwaphatha ngezindlela ezithile ezenza kube lula ukuphuma.Futhi emva kwalokho, kuyadingeka ukuhlanza zonke izimbobo ezinezintambo kusuka ekugqwaleni nasekungcoleni.Awudingi ukwenza enye into.
Uma imoto ingenaso isikrini, ukubuyisela kabusha kufanele kwenziwe ngokuqapha.Okokuqala, udinga ukukhetha isikrini esifanele ekwakhiweni, ukuma, usayizi nokucushwa.Okwesibili, lapho ufaka isikrini, akufanele kube nezintambo, amathangi, izinzwa nezinye izingxenye eduze kwaso.Okwesithathu, isikrini kufanele sifakwe ngokuthembeka okukhulu, ukuvimbela ukudlidliza nokunyakaza kwayo ngesikhathi sokusebenza kwemoto.
Okokugcina, akukhuthazwa ukudweba isikrini somqoqi (ngisho nangosizo lwamapende akhethekile aphikisana nokushisa), sebenzisa ukufakwa kwe-thermal kuso futhi ushintshe umklamo.Ukupenda nokushintsha ukwakheka kwesikrini kunciphisa ukuphepha emlilweni futhi kwenza izinga lokushisa libe libi kakhulu endaweni yenjini.
Ngokufakwa okufanele kanye nokushintshwa kwesikrini se-exhaust eningi, izinga lokushisa elinethezekile lizogcinwa endaweni yenjini, futhi imoto izovikelwa emlilweni.
Isikhathi sokuthumela: Aug-27-2023