IIifriji ezithe nkqokwaye iifriji ezithe tyaba kwimarike zisebenzisa ukupholisa umoya, ukukhenkceza, njl.njl., kodwa zonke ziintlobo ezahlukeneyo zeefriji i-R600A kunye ne-R134A. Kakade ke, "i-catalyst" apha ibhekisa ekudlulisweni kwamandla, oko kukuthi, ukufuma kunye nokufuma ukuze kufezekiswe ukudluliselwa kobushushu. Kubantu abaqhelekileyo, kufuneka siqonde kuphela ukuba yinxalenye ebalulekileyo yokukhenkceza ifriji.
Ukuze kube lula kuwe ukuqonda, umgaqo osisiseko wokukhenkceza uxhomekeke kumjikelo weCarnot ochaseneyo ngamanyathelo amane abalulekileyo:
(1) Uxinzelelo (ubushushu obuphezulu kunye negesi yoxinzelelo oluphezulu)
I-compressor icinezela igesi efrijini enobushushu obuphantsi noboxinzelelo oluphantsi ibe yigesi enobushushu obuphezulu noboxinzelelo oluphezulu, nto leyo ebangela ukuba ubushushu bayo bunyuke kakhulu (umz. ukusuka kwi -20 ° C ukuya kwi-100 ° C).
(2) Ukufuma (ukusasazwa kobushushu kuba lulwelo)
Ubushushu obuphezulu kunye negesi yoxinzelelo oluphezulu ingena kwi-condenser, ikhuphe ubushushu ngefeni yokupholisa, ize iguquke ibe lulwelo oluqhelekileyo kunye noxinzelelo oluphezulu emva kokupholisa.
(3) Ukwandiswa (uxinzelelo oluncitshisiweyo lwe-vaporization endothermic)
Emva kokuba ulwelo olunoxinzelelo oluphezulu ludlule kwivalvu yokwandisa, uxinzelelo luyehla kakhulu, luphembe kancinci kwaye lufunxe ubushushu obujikeleze i-evaporator, nto leyo ebangela ukuba ingaphakathi lefriji liphole.
(4) Ukufuma (ubushushu obuphantsi kunye negesi exinezelekileyo ephantsi)
Ulwelo olubandayo kubushushu obuphantsi kunye noxinzelelo lupheliswa ngokupheleleyo kwi-evaporator, lufunxa ubushushu obusefrijini, luze lubuyele kwi-compressor ukuze lugqibezele umjikelo.
Kule ngongoma, indima ephambili ye-refrigerant ibonakala ekufakweni kobushushu kunye ne-exotherm yokutshintsha kwesigaba, kwaye inkqubo yokufunxwa kobushushu nge-vaporization iya kuyipholisa ifriji.
Phawula:I-refrigerant iphinda isetyenziswe kwinkqubo evaliweyo kwaye isetyenziswa ngokuphindaphindiweyo ngaphandle kokutyiwa. Iimpawu zayo zomzimba (umz. iqondo lokubila eliphantsi, ubushushu obuphezulu obufihlakeleyo) zimisela ukusebenza kakuhle kokupholisa.
Apha ndifuna ukukuchazela ukuba abasebenzisi banokubhidanisa ingcamango "ye-catalyst" ne "medium". Iifriji azithathi nxaxheba kwiimpendulo zeekhemikhali, kodwa zidlulisela amandla ngotshintsho lwesigaba somzimba, kodwa ukusebenza kwazo kuchaphazela ngokuthe ngqo isiphumo sokupholisa (njengokusebenza kakuhle, ubushushu), njengokubaluleka kwee-catalysts kwiimpendulo zeekhemikhali, kodwa ezi ndlela zimbini zahlukile ngokupheleleyo.
Iimbonakalo:
(1) Kulula ukuyifunxa nokufunxa ubushushu kubushushu begumbi (umz. i-R600a yokubila – 11.7 ° C), izinzile ngokwekhemikhali, kwaye ayilula ukuyibolisa okanye ukuyidlakaza izixhobo.
(2) Ubuhlobo nokusingqongileyo: Nciphisa umonakalo kumaleko we-ozone (umz. i-R134a ithatha indawo ye-R12).
Iifriji zezona zinto ziphambili zokufrijiwa kwefriji zorhwebo. Zidlulisela ubushushu ngokutshintsha kwesigaba, ngendlela efanayo “nee-heat porters”, ezikhupha ubushushu ngaphakathi kwifriji ziye ngaphandle ngokujikeleza, ngaloo ndlela zigcina imeko-bume yobushushu obuphantsi.
Ixesha lokuposa: Matshi-10-2025 Imbono: