Uhlelo lokufudumeza imoto kaphethiloli
Okokuqala, ake sibukeze umthombo wokushisa wesistimu yokushisa yemoto kaphethiloli.
Ukusebenza kahle kokushisa kwenjini yemoto kuphansi kakhulu, cishe u-30%-40% wamandla akhiqizwa ukusha aguqulwa abe amandla omshini wemoto, kanti okusele kuthathwa yi-coolant kanye negesi yokukhipha umoya. Amandla okushisa athathwa yi-coolant alinganiselwa ku-25-30% wokushisa kokusha.
Uhlelo lokushisa lwemoto kaphethiloli yendabuko luqondisa i-coolant ohlelweni lokupholisa injini iye ku-heat exchanger yomoya/amanzi ekhabini. Uma umoya ugeleza nge-radiator, amanzi ashisa kakhulu angadlulisela ukushisa kalula emoyeni, ngaleyo ndlela avunguze. Umoya ongena ekhabini umoya ofudumele.
Uhlelo olusha lokufudumeza amandla
Uma ucabanga ngezimoto zikagesi, kungaba lula ngawo wonke umuntu ukucabanga ukuthi uhlelo lwesifudumezi olusebenzisa ngqo ucingo lokumelana nokushisa umoya alwanele. Ngokwethiyori, kungenzeka ngokuphelele, kodwa cishe azikho izinhlelo zesifudumezi sezintambo zokumelana nezimoto zikagesi. Isizathu ukuthi ucingo lokumelana ludla ugesi omningi kakhulu.
Njengamanje, izigaba zezinhlobo ezintshaizinhlelo zokushisa amandlaikakhulukazi izigaba ezimbili, esinye ukushisa kwe-PTC, esinye ubuchwepheshe bephampu yokushisa, kanti ukushisa kwe-PTC kuhlukaniswe ngezigaba ezimbili.i-air PTC kanye ne-coolant PTC.
Isimiso sokushisa sesistimu yokushisa yohlobo lwe-PTC thermistor silula futhi kulula ukusiqonda. Sifana nesistimu yokushisa yentambo yokumelana, encike kumandla kagesi ukukhiqiza ukushisa ngokumelana. Umehluko kuphela yizinto ezisetshenziswayo zokumelana. Intambo yokumelana iyintambo yensimbi evamile enokumelana okuphezulu, kanti i-PTC esetshenziswa ezimotweni zikagesi ezihlanzekile iyi-semiconductor thermistor. I-PTC yisifinyezo se-Positive Temperature Coefficient. Inani lokumelana nalo lizokhula. Lesi sici sinquma ukuthi ngaphansi kwesimo se-voltage engaguquki, i-heater ye-PTC ishisa ngokushesha lapho izinga lokushisa liphansi, futhi lapho izinga lokushisa likhuphuka, inani lokumelana liba likhulu, amandla kagesi aba mancane, futhi i-PTC idla amandla amancane. Ukugcina izinga lokushisa lingaguquki kuzokonga ugesi uma kuqhathaniswa nokushisa kwentambo yokumelana okumsulwa.
Yilezi zinzuzo ze-PTC eziye zamukelwa kabanzi yizimoto zikagesi ezihlanzekile (ikakhulukazi amamodeli asezingeni eliphansi).
Ukushisa kwe-PTC kuhlukaniswe ngezigaba ezimbili:Isifudumezi sokupholisa se-PTC kanye nesifudumezi somoya.
Isifudumezi samanzi se-PTCivame ukuhlanganiswa namanzi okupholisa enjini. Uma izimoto zikagesi zisebenza nenjini isebenza, injini nayo izoshisa. Ngale ndlela, uhlelo lokushisa lungasebenzisa ingxenye yenjini ukushisa kusengaphambili ngesikhathi sokushayela, futhi lungasindisa nogesi. Isithombe esingezansiIsifudumezi sokupholisa esine-voltage ephezulu ye-EV.
Ngemva kwe-i-PTC yokushisa amanziifudumeza i-coolant, i-coolant izogeleza ngaphakathi kwe-heating core ekhabini, bese ifana nesistimu yokushisa yemoto kaphethiloli, futhi umoya osekhabini uzojikeleziswa futhi ufudumale ngaphansi kwesenzo somshini ophehlayo.
Ii-PTC yokushisa umoyaukufaka i-PTC ngqo engxenyeni engaphakathi ye-heater ye-cab, ukujikeleza umoya emotweni nge-blower bese ufudumeza umoya ngqo e-cab nge-heater ye-PTC. Isakhiwo silula, kodwa sibiza kakhulu kune-PTC yokufudumeza amanzi.
Isikhathi sokuthunyelwe: Agasti-03-2023
