Gulu la refrigerant mafuta
Chimodzi ndi mafuta amchere amchere;
Zina ndi zopangidwa polyethylene glycol esters monga PO,Polyester mafuta ndi kupanga polyethylene glycol lubricating oil.POE mafuta angagwiritsidwe ntchito osati HFC refrigerant dongosolo, komanso hydrocarbon refrigerant.PAG mafuta angagwiritsidwe ntchito HFC, hydrocarbon ndi ammonia machitidwe ngati mafiriji.
Ntchito yaikulu ya refrigerating mafuta
· Chepetsani kugundana, kutentha kwamphamvu komanso kutha
· Dzazani malo osindikizira ndi mafuta kuti muwonetsetse kuti kusindikiza kumagwira ntchito komanso kupewa kutayikira kwa firiji.
·Kuyenda kwamafuta kumachotsa tizidutswa ta abrasive tomwe timakangana ndi chitsulo, motero kuyeretsa pamwamba
· Perekani mphamvu zama hydraulic potsitsa makina
Zofunikira pakugwira ntchito kwa refrigerate mafuta
· Viscosity yoyenera: mawonekedwe a viscosity yamafuta a makina a refrigerate sikuti amangotsimikizira kuti kukangana kwa gawo lililonse losuntha kumakhala ndi mafuta abwino, komanso kumachotsa kutentha kumakina a firiji ndikuchita ntchito yosindikiza. Kusungunuka kwakukulu kwamafuta a makina opangira firiji, mafuta omwe ali ndi kukhuthala kwakukulu ayenera kuganiziridwa kuti athetse mphamvu ya mafuta osungunuka ndi firiji.
Kusakhazikika kwakung'ono, kung'anima kwakukulu: Kutentha kwamafuta akuzizira kumakhala kokulirapo, ndikuzungulira kwa firiji, kuchuluka kwamafuta kumakhala, makamaka magawo amafuta am'firiji ang'onoang'ono ang'onoang'ono ang'onoang'ono ayeneranso kukhala apamwamba kuposa kutentha kwa makina opitilira 25-30. ℃.
Kukhazikika kwamankhwala abwino komanso kukhazikika kwa okosijeni wamafuta: mu makina omaliza opangira firiji kutentha ndi 130 ℃ ~ 160 ℃, kutentha kwamafuta oundana komanso kuwonongeka kwa metamorphism kosalekeza, kupanga gawo la kaboni m'makina osokonekera komanso kuvala. Komanso, kuwonongeka Mafuta amafuta amatha kuchitapo kanthu ndi refrigerant, zomwe zimapangitsa kuti kuziziritsa kuipire, ndipo asidi wotsatirayo amawononga kwambiri mbali za firiji.
· Palibe madzi ndi zonyansa: chifukwa madzi amaundana mu evaporator adzakhudza kutentha kwabwino, kukhudzana ndi refrigerant kumathandizira kuwonongeka kwa firiji ndikuwononga zida, kotero kuti mafuta a furiji sangakhale ndi madzi ndi zonyansa.
Zina: Mafuta opangira furiji ayeneranso kukhala ndi zinthu zabwino zoletsa kuchita thovu ndipo asasungunuke kapena kukulitsa kukhala mphira, waya wa enameled ndi zinthu zina.Kutchinjiriza kwamagetsi kwabwino kuyenera kugwiritsidwa ntchito pamakina otsekera mufiriji.
Mfundo zofunika kuziganizira posankha mafuta a refrigerate
·Viscosity: kuthamanga kwa kompresa kukakhala kokwezeka, m'pamenenso kukhuthala kwamafuta akufiriji kumakwera.
Kukhazikika kwa kutentha: Kukhazikika kwa kutentha kumayezedwa ndi kung'anima kwa injini yowuma.Flash point imatanthauza kutentha komwe nthunzi yamafuta amakina opangira furiji imayaka ikatenthedwa. kutentha kwa kompresa utsi, monga R717, R22 kompresa ntchito firiji mafuta kung'anima mfundo ayenera kukhala pamwamba 160 ℃.
·Fluidity: mafuta opangira firiji ayenera kukhala ndi madzi abwino pa kutentha kochepa.Mu evaporator, chifukwa cha kutentha kochepa komanso kuwonjezereka kwa kukhuthala kwa mafuta, fluidity idzakhala yosauka.Mafuta a makina a firiji akafika pa kutentha kwina, amasiya kuyenda.Kuzizira kwa mafuta a makina a firiji kumafunika kukhala otsika, makamaka kuzizira kwa mafuta a cryogenic makina ndi ofunika kwambiri.
·Kusungunuka: kusungunuka kwa mafiriji osiyanasiyana ndi mafuta a refrigerant ndikosiyana, komwe kumatha kugawidwa m'magulu atatu: imodzi ndi yosasungunuka, inayo ndi yosasungunuka, ndipo inayo ili pakati paziwirizi.
·Turbidity point: kutentha komwe mafuta a mufiriji amayamba kuchulukira parafini (mafuta amakhala a turbid) amatchedwa turbidity point.Mufiriji ikakhalapo, matope amafuta amafuta amachepa.
Chifukwa chachikulu cha kuwonongeka kwa refrigerating mafuta
·Kusakaniza madzi: chifukwa cha kulowetsedwa kwa mpweya mu firiji, madzi a mumlengalenga amasakanikirana ndi mafuta a makina a refrigerating pambuyo pokhudzana.Madzi omwe ali mufiriji ndi ochuluka, amathanso kusakaniza madzi mu mafuta a friji. mafuta a refrigerate, viscosity imachepa ndipo zitsulo zimawonongeka.Mu freon refrigeration system, "ice plug" imayambitsanso.
Oxidation: mafuta a refrigerate akagwiritsidwa ntchito, kutentha kwa mpweya wa kompresa kukakwera, kungayambitse kuwonongeka kwa okosijeni, makamaka mafuta a refrigerating osakhazikika bwino, omwe amatha kuwonongeka.M'kupita kwa nthawi, zotsalira zidzapangidwa mu mafuta a firiji, zomwe zimapangitsa kuti mafuta a ma bere ndi malo ena awonongeke.
Kusakaniza mafuta a makina opangira firiji: pamene mitundu ingapo ya mafuta opangira firiji ikugwiritsidwa ntchito palimodzi, kukhuthala kwa mafuta a makina opangira firiji kudzachepetsedwa, ndipo ngakhale kupanga filimu yamafuta kudzawonongeka.
Ngati mitundu iwiri yamafuta am'makina a refrigerate ili ndi zowonjezera zotsutsana ndi okosijeni zamitundu yosiyanasiyana, zikasakanikirana, kusintha kwamankhwala kumatha kuchitika ndikupangika, zomwe zidzakhudza kudzoza kwa kompresa.Choncho, chidwi chiyenera kulipidwa pakugwiritsa ntchito.
•Muli zodetsedwa m'mafuta akufiriji
Momwe mungasankhire mafuta a firiji
·Sankhani mafuta opaka molingana ndi mtundu wa kuponderezedwa: kompresa yamakina opangira firiji ili ndi mitundu itatu ya piston, screw ndi centrifugal.Mitundu iwiri yoyamba ya mafuta odzola imakhudzana mwachindunji ndi refrigerant yothinikizidwa, poganizira kugwirizana pakati pa mafuta odzola ndi refrigerant.Centrifugal mafuta amangogwiritsidwa ntchito kuti azipaka rotor.Ikhozanso kusankhidwa molingana ndi katundu ndi liwiro.
·Sankhani mafuta opaka molingana ndi mtundu wa refrigerant: mafuta opaka mafuta omwe amalumikizana mwachindunji ndi firiji ayenera kuganizira za kugwirizana pakati pa awiriwo. mafuta ayenera kukhala giredi imodzi yapamwamba kuposa ya refrigerant yosasungunuka, kuti mafuta opaka mafuta asathe kutsimikiziridwa atachepetsedwa. Kuphatikiza apo, ziyenera kuzindikirika kuti mafuta ochepa opaka mafuta osakanikirana ndi firiji adzakhudza ntchito ya refrigeration system.The flocculation point of refrigerating machine oil is the quality index to check if the lubricating oil mix with refrigerant can precipitate sera crystal and block the firiji system.
Sankhani mafuta opaka mafuta molingana ndi kutentha kwa refrigerant: nthawi zambiri, evaporator ya refrigerant yokhala ndi kutentha pang'ono kwa evaporation iyenera kusankha mafuta a furiji omwe ali ndi malo oziziritsa ocheperako, kuti apewe mafuta opaka mafuta otengedwa ndi refrigerant kupita mufiriji kuti asasunthike pamiyendo. valavu ndi evaporator, zomwe zimakhudza magwiridwe antchito a firiji.
Kuzizira kwa mafuta opaka omwe amagwiritsidwa ntchito mufiriji ya ammonia kuyenera kukhala kotsika poyerekeza ndi kutentha kwa mpweya.
Kumene freon amagwiritsidwa ntchito ngati firiji, malo oundana a mafuta opaka amatha kukhala okwera pang'ono kusiyana ndi kutentha kwa mpweya.
·Sankhani mafuta opaka molingana ndi momwe mufiriji amagwirira ntchito.
HERO-TECH amangogwiritsa ntchito zapamwambamafuta a firiji.Magawo onse a zoziziritsa kukhosi athu ndi apamwamba kwambiri, zomwezo zimapitanso kumafuta afiriji.Timafunikira mafuta abwino a firiji kuti azithandizira makina okhazikika komanso otalika.
Chifukwa chake, khulupirirani HERO-TECH, khulupirirani katswiri wanu wothandizira firiji.
Nthawi yotumiza: Dec-14-2018