1.Viscosity yamafuta oundana: Mafuta oundana amakhala ndi kukhuthala kwina kuti asunge kukangana kwa magawo osunthika pamalo abwino opaka mafuta, kuti athe kutenga gawo la kutentha kwa kompresa ndikuchita ntchito yosindikiza.
Mafuta amagwira ntchito pazigawo ziwiri zotentha kwambiri: Kutentha kwa valve ya compressor kumatha kukhala madigiri oposa 100, ndi valavu yowonjezera, kutentha kwa evaporator kudzakhala kochepa mpaka -40 madigiri. kuvala ndi phokoso la chotengera cha compressor ndi silinda, ndipo panthawi imodzimodziyo kuchepetsa kuzizira ndikufupikitsa moyo wautumiki wa compressor.Ngakhale pazovuta kwambiri, compressor ikhoza kutenthedwa.
2.Kuthira mafuta oundana: Kutsanulira ndi chizindikiro chomwe chingapangitse makina oyaka moto.Kutentha kwa ntchito ya compressor kumakhala ndi kusiyana kwakukulu.Choncho, pofuna kuonetsetsa ntchito ya lubricant akhoza kuchitidwa bwinobwino, nthawi zambiri chofunika kukhalabe ntchito yabwino pa kutentha otsika.Chotero, kuthira mfundo ayenera kukhala m'munsi kuposa kuzizira kutentha, ndi mamasukidwe akayendedwe ndi kutentha ayenera kukhala zabwino, kotero. kuti mafuta oundana amatha kubwereranso bwino ku kompresa kuchokera ku evaporator mu malo otsika a kutentha.Ngati malo othira mafuta oundana ndi okwera kwambiri, Zimapangitsa kuti mafutawo abwerere pang'onopang'ono kuti makina osavuta amawotchedwa.
3.Flash point yamafuta owumitsidwa: Palinso ngozi yoti kung'anima kwamafuta owuma kumakhala kotsika kwambiri.Chifukwa cha kusakhazikika kwakukulu, kutsika kwamafuta ochepa kumawonjezera kuchuluka kwamafuta mufiriji.Kuwonjezera kuvala ndi kung'amba. zimawonjezera mtengo.Choopsa kwambiri ndi kuwonjezereka kwa chiwopsezo cha kuyaka panthawi ya kuponderezedwa ndi kutentha, zomwe zimafuna kuti kung'anima kwa mafuta a mufiriji ndi madigiri oposa 30 kuposa kutentha kwa firiji.
Kukhazikika kwa 4.Chemical: Mapangidwe amafuta amafuta osungunuka amakhala osasunthika, samatulutsa okosijeni, samawononga zitsulo.Ngati mafuta otsika oundana ali ndi refrigerant kapena chinyezi, amayambitsa dzimbiri.Pamene mafuta oxidize, izo zimatulutsa asidi ndi corrode metal.Pamene mazira mazira ndi kutentha kwambiri, padzakhala coke ndi ufa, ngati chinthu amalowa fyuluta ndi throttle valavu mosavuta chifukwa blockage.Lowani kompresa ndipo mwina nkhonya kupyolera galimoto. filimu ya insulation.Makina osavuta kwambiri amenewo adawotchedwa.
5. Zonyansa zamakina ndi chinyezi chambiri: Zonyansa kwambiri zamakina ndi chinyezi: ngati mafuta oundana ali ndi chinyezi, amakulitsa kusintha kwamafuta, kupangitsa kuwonongeka kwamafuta, kuchititsa dzimbiri kukhala chitsulo, komanso kumayambitsa "ice block" pamoto. kapena valavu yowonjezera.Mafuta opaka mafuta amakhala ndi zonyansa zamakina, zomwe zidzakulitsa kuvala kwa mikangano pamwamba pazigawo zosuntha ndikuwononga compressor.
6..Zambiri za parafini: Kutentha kogwira ntchito kwa kompresa kutsika kufika pamtengo wina, parafini imayamba kupatukana ndi mafuta oundana, ndikupangitsa kuti ikhale yaphokoso.
Mafuta oziziritsa amatulutsa parafini ndipo amawunjikana pakhosi kuti atseke phokoso kapena atha kuwunjikana pamtunda wotengera kutentha kwa evaporator, zomwe zimasokoneza magwiridwe antchito a kutentha.
Momwe mungadziwire ngati mafuta oundana ndi oyipa
Ubwino wa mafuta oundana ukhoza kuweruzidwa ndi mtundu wa mafuta.Mtundu wamba wa mafuta oundana a mchere umakhala woonekera komanso wachikasu pang'ono, ngati mitambo kapena mtundu uli wozama kwambiri mu mafuta, zonyansa ndi parafini zimakhala zapamwamba. mtundu wabwinobwino wa ester synthetic mafuta oundana ndi lamba wowonekera wachikasu, woderapo pang'ono kuposa mafuta amchere.Kukwera kwa viscosity ya kinematic ndi, mtundu wakuda umakhala.Pamene mamasukidwe akayendedwe afika 220mPa.Mtundu ndi wonyezimira wachikasu ndi zofiirira zofiirira.
Titha kutenga pepala loyera la pepala loyera, kutulutsa mafuta oundana pang'ono, kuwaponya pa pepala loyera, ndiyeno penyani mtundu wa mafuta. mafuta ndi abwinoko, Ngati madontho akuda kapena mabwalo apezeka papepala loyera, mafuta oundana awonongeka kapena ndi otsika kwambiri owunda mafuta.
Nthawi yotumiza: Dec-14-2018
