Mazhinji air conditioning uye mafiriji masisitimu anowana mayunitsi avo ekunze kunze kwezvikonzero zviviri zvikuru. Chekutanga, izvi zvinotora mukana weiyo inotonhorera ambient tembiricha kunze kubvisa kumwe kupisa kwakatorwa ne evaporator, uye chechipiri, kuderedza kusvibiswa kweruzha.
Condensing mauniti anowanzo kuve nemacompressor, condenser coils, ekunze condenser mafeni, anobatika, ekutanga relays, capacitor, uye yakasimba state mahwendefa ane maseketi. Iyo inogamuchira inowanzobatanidzwa muchikwata chekugadzirisa chefriji yefriji. Mukati meiyo condensing unit, iyo compressor kazhinji ine heater neimwe nzira yakabatana nepasi kana kune crankcase. Rudzi urwu rwekupisa runowanzo kunzi acrankcase heater.
Thecompressor crankcase heateriheater yekudzivirira iyo inowanzosungirirwa pasi pecrankcase kana kuiswa mutsime mukati mecompressor's crankcase.Crankcase heatersanowanzo kuwanikwa pamacompressor apo tembiricha yakadzika yakadzikira pane tembiricha yekushandisa evaporator.
Mafuta ecrankcase kana mafuta ecompressor ane mabasa mazhinji akakosha. Kunyange zvazvo firiji iri mvura inoshanda inodiwa pakutonhodza, oiri inodiwa kusveta zvikamu zvinofamba zvemushini zve compressor. Mumamiriro ezvinhu akajairwa, panogara paine mafuta mashoma anopukunyuka kubva mu crankcase ye compressor uye anotenderera nefiriji mukati mehurongwa. Nekufamba kwenguva, iyo yakakodzera firiji kumhanya kuburikidza neiyo tubing system inobvumira aya mafuta akapukunyuka kuti adzokere kune crankcase, uye nekuda kweichi chikonzero mafuta nefiriji zvinofanirwa kunyungudika. Panguva imwecheteyo, zvisinei, kunyungudika kwemafuta uye refrigerant kunogona kukonzera imwe dambudziko rehurongwa. Dambudziko iri refrigerant migration.
Kutama chinhu aperiodic phenomenon. Iyi inzira iyo mvura uye/kana mafiriji ehutsi anotama kana kudzokera kucompressor's crankcase uye mitsetse yekuyamwa panguva yekuvharwa kweCompressor. Munguva yekubuda kwe compressor, kunyanya panguva yekubuda kwenguva refu, firiji inoda kufambiswa kana kutamirwa kune iyo yakanyanya kuderera. Muchisikigo, zvinwiwa zvinoyerera kubva kunzvimbo dzepamusoro-soro kuenda kunzvimbo dzepasi. Iyo crankcase kazhinji ine yakaderera kudzvinyirira kupfuura evaporator nekuti ine mafuta. Iyo inotonhorera ambient tembiricha inokwidziridza yakaderera mhute pressure phenomenon uye inobatsira kudzikamisa mhute yefiriji mukati memvura mu crankcase.
Mafuta efiriji pachawo ane low vapor pressure, uye kana refrigerant iri mumhute kana mvura, inoyerera ichienda kumafuta efiriji. Muchokwadi, mhute yemafuta echando yakadzikira zvekuti kunyangwe vacuum ye100 microns ikadhonzwa pafiriji system, haizonyungudika. Iyo mhute yemamwe mafuta akaomeswa nechando inoderedzwa kusvika 5-10 microns. Kana oiri isina mhute yakaderera kudaro, inonyura pese painenge paine kuderera kana vacuum mu crankcase.
Sezvo refrigerant migration inogona kuitika ne refrigerant vapor, kutama kunogona kuitika kukwira kana kudzika. Kana iyo refrigerant steam inosvika kune crankcase, inobatwa uye yakanyungudutswa mumafuta nekuda kwekukanganisika kwefiriji / mafuta.
Munguva yakareba yakavharwa kutenderera, mvura yefiriji inoumba striated layer pazasi pemafuta mu crankcase. Izvi zvinodaro nekuti mafiriji emvura anorema kupfuura mafuta. Munguva pfupi pfupi compressor shutdown cycles, iyo inotama firiji haina mukana wekugara pasi pemafuta, asi icharamba ichisanganiswa nemafuta mu crankcase. Munguva yekudziya uye / kana mwedzi inotonhora kana mhepo isingadikanwi, varidzi vekugara vanowanzodzima magetsi emagetsi kune air-conditioning yekunze condensing unit. Izvi zvichaita kuti compressor isave nekupisa kwecrankcase nekuti crankcase heater yapera simba. Kutama kwefiriji kuenda kune crankcase kuchaitika panguva iyi yakareba kutenderera.
Kana mwaka wekutonhodza watanga, kana muridzi wemba akasatendeutsa muputsi wedunhu kumashure kweanenge maawa 24-48 asati atanga air conditioning unit, yakanyanya crankcase foaming uye pressurization ichaitika nekuda kwekurebesa kusingatenderere refrigerant migration.
Izvi zvinogona kuita kuti crankcase irasikirwe neiyo mafuta level, zvakare kukuvadza mabhengi uye kukonzera kumwe kutadza kwemakanika mukati me compressor.
Crankcase heaters akagadzirirwa kubatsira kurwisa refrigerant migration. Basa re crankcase heater ndere kuchengetedza mafuta ari mu compressor crankcase pane tembiricha yakakwira kupfuura iyo inotonhora zvakanyanya ye system. Izvi zvinozoita kuti crankcase ive neshongedzo yakakwira zvishoma pane yese system. Iyo refrigerant inopinda mu crankcase inozove vapor uye inodzoserwa kumashure mumutsetse wekusveta.
Munguva dzisiri dzekutenderera nguva, kutama kwefiriji kuenda kune compressor crankcase idambudziko rakakura. Izvi zvinogona kukonzera kukanganisa kwakakomba compressor
Nguva yekutumira: Sep-25-2024