Kutama kwemvura inotonhorera
Kufamba kwemufiriji zvinoreva kuunganidzwa kwemvura inotonhorera mucompressor crankcase kana compressor yadzimwa. Chero bedzi tembiricha iri mukati mecompressor yakaderera pane tembiricha iri mukati meevaporator, musiyano wekumanikidzwa pakati pecompressor neevaporator uchaendesa refrigerant kunzvimbo inotonhora. Chiitiko ichi chinowanzoitika munguva yechando. Zvisinei, kune zvishandiso zvemhepo inotonhodza uye zvinopisa, kana condensing unit iri kure necompressor, kunyangwe tembiricha iri yakakwira, chiitiko chekutama chinogona kuitika.
Kana sisitimu yadzimwa, kana ikasabatidzwa mukati memaawa mashoma, kunyangwe pasina musiyano wekumanikidzwa, chiitiko chekutama chinogona kuitika nekuda kwekukwezvwa kwemafuta ari mufiriji mu crankcase kuenda kufiriji.
Kana refrigerant yemvura yakawandisa ikapinda mu crankcase ye compressor, kuvhunduka kwemvura kwakanyanya kunoitika kana compressor yatanga, zvichikonzera kutadza kushanda kwe compressor, zvakaita sekuputika kwe valvu disc, kukuvara kwe piston, kutadza kushanda kwe bearing uye kukurwa kwe bearing (refrigerant inosuka mafuta anotonhorera kubva pa bearing).
Mvura inofashaira mufiriji
Kana vharuvhu yekuwedzeredza ikatadza kushanda, kana kuti feni ye evaporator ikakundikana kana kuti ikavharirwa ne air filter, refrigerant yemvura inozadza mu evaporator yopinda mu compressor semvura pane kuti ipfuure nemuchubhu yekusveta. Kana unit iri kushanda, mvura inozadza inonyungudutsa mafuta ari mufiriji, zvichiita kuti zvikamu zvinofamba zve compressor zviparare, uye kuderedzwa kwesimba remafuta kunotungamira kukushanda kwemudziyo wekuchengetedza kumanikidzwa kwemafuta, zvichiita kuti crankcase irasikirwe nemafuta. Muchiitiko ichi, kana muchina ukadzimwa, chiitiko che refrigerant chinokurumidza kuitika, zvichikonzera kuvhunduka kwemvura kana watangazve.
Nyundo yemvura
Kana mvura yarova, ruzha rwesimbi runobuda mucompressor runogona kunzwika, uye compressor inogona kuperekedzwa nekudengenyeka kwakasimba. Hydraulic percussion inogona kukonzera kuputika kwevharuvhu, kukuvara kwe compressor head gasket, kutyoka kwetsvimbo yekubatanidza, kutyoka kweshaft nedzimwe mhando dzekukuvara kwe compressor. Kana mvura yapinda mu crankcase, kuvhunduka kwemvura kunoitika kana crankcase yavhurwa. Mune mamwe mayuniti, nekuda kwechimiro chepipeline kana nzvimbo yezvikamu, mvura yakapoteredza ichaungana mu suction tube kana evaporator panguva yekudzikira kweyuniti, uye ichapinda mu compressor muchimiro chemvura yakachena nekumhanya kwakanyanya kana yavhurwa. Kumhanya uye kusagadzikana kwe hydraulic stroke zvakakwana kuparadza dziviriro yechinhu chipi zvacho chakavakirwa mukati me compressor anti-hydraulic stroke device.
Chiito chemudziyo wekudzora kuchengetedzeka kwemafuta
Muchikamu chinopa simba rekudzivirira kupisa, mushure menguva yekubvisa chando, kuwanda kwemvura inotonhorera mufiriji kunowanzoita kuti mudziyo wekudzivirira kumanikidzwa kwemafuta ushande. Masisitimu mazhinji akagadzirwa kuti abvumire mufiriji kuungana mu evaporator ne suction tube panguva yekunyungudutsa, uye wozoyerera mu compressor crankcase pakutanga zvichiita kuti kumanikidzwa kwemafuta kudonhe, zvichiita kuti mudziyo wekuchengetedza kumanikidzwa kwemafuta ushande.
Dzimwe nguva, kamwe chete kana kaviri, kushanda kwemudziyo wekudzora kumanikidzwa kwemafuta hakuzokanganisi zvakanyanya compressor, asi kakawanda kana pasina mamiriro akanaka ekuzora mafuta kuchaita kuti compressor isashande zvakanaka. Mudziyo wekudzora kumanikidzwa kwemafuta unowanzoonekwa nemushandi sechikanganiso chidiki, asi inyevero yekuti compressor yave ichishanda kwemaminitsi anopfuura maviri isina kuzora mafuta, uye matanho ekugadzirisa anofanira kuitwa nenguva.
Mishonga inokurudzirwa
Kana system yekufiriji ichichajwa zvakanyanya, mukana wekuti iputsike unokura. Kana compressor nezvimwe zvikamu zvikuru zvesystem zvakabatana pamwe chete kuti zviongororwe system ndipo panogona kuwanikwa charge yakanyanya uye yakachengeteka yerefrigerant. Vagadziri vecompressor vanokwanisa kuona huwandu hwakanyanya hwerefrigerant yemvura inofanira kuchajwa pasina kukuvadza zvikamu zvinoshanda zvecompressor, asi havakwanise kuona kuti huwandu hwakawanda sei hwerefrigerant yemvura iri musystem yekufiriji iri mucompressor mune zviitiko zvakanyanya. Huwandu hwakanyanya hwerefrigerant yemvura inogona kutsungirira compressor hunoenderana nekugadzirwa kwayo, huwandu hwezviri mukati uye huwandu hwemafuta erefrigerant achajwa. Kana kufamba kwemvura, kuwanda kana kudonha kukaitika, chiito chekugadzirisa chinodiwa chinofanira kutorwa, rudzi rwekugadzirisa chinoenderana nekugadzirwa kwesystem uye rudzi rwekutadza.
Deredza huwandu hwemuchina wekuchengetedza firiji
Nzira yakanakisisa yekudzivirira compressor kubva mukukundikana kunokonzerwa nemafiriji emvura ndeyekuganhurira huwandu hwerefrigerant kusvika padanho rinobvumirwa necompressor. Kana izvi zvisingaite, huwandu hwekuzadza hunofanira kuderedzwa zvakanyanya sezvinobvira. Kana zvichidikanwa kuti isvike pakuyerera kwemvura, condenser, evaporator uye pombi yekubatanidza zvinofanirwa kushandiswa zvishoma sezvinobvira, uye mvura inofanira kusarudzwa diki sezvinobvira. Kuderedzwa kwehuwandu hwekuzadza kunoda kushanda kwakakodzera kuti girazi remaziso rizive mabhuru anokonzerwa nedhayamita diki yechubhu yemvura uye kumanikidzwa kwemusoro kwakaderera, izvo zvinogona kukonzera kuzadza zvakanyanya.
Kutenderera kwekubuda
Nzira inonyanya kushanda uye yakavimbika yekudzora refrigerant yemvura ndeye evacuation cycle. Kunyanya kana huwandu hwesystem charge hwakawandisa, nekuvhara solenoid valve yepombi yemvura, refrigerant inogona kupombwa mu condenser uye mu liquid reservoir, uye compressor inomhanya ichidzorwa ne low-pressure safety control device, saka refrigerant inobviswa kubva ku compressor kana compressor isiri kushanda, kudzivirira kufamba kwe refrigerant kuenda ku compressor crankcase. Zvinokurudzirwa kushandisa continuous evacuation cycle panguva ye shutdown phase kudzivirira leave ye solenoid valve. Kana iri single evacuation cycle, kana inonzi non-recirculating control mode, pachava nekukuvadzwa kwakawanda kwe refrigerant leaking ku compressor kana yadzimwa kwenguva yakareba. Kunyangwe continuous evacuation cycle iriyo nzira yakanakisa yekudzivirira kufamba, haidziviriri compressor kubva kumigumisiro yakaipa ye refrigerant overflow.
Chitofu checrankcase
Mune mamwe masisitimu, nzvimbo dzekushanda, mitengo, kana zvinodiwa nevatengi zvinogona kuita kuti nguva dzekubuda dzisashande, ma crankcase heater anogona kunonotsa kutama.
Basa re crankcase heater nderekuchengetedza tembiricha yemafuta anotonhorera mu crankcase pamusoro petembiricha yechikamu chepazasi chesystem. Zvisinei, simba rekupisa re crankcase heater rinofanira kuganhurirwa kudzivirira kupisa zvakanyanya uye kuomesa mafuta kabhoni. Kana tembiricha yemhepo iri pedyo ne -18° C, kana chubhu yekusveta yaonekwa, basa re crankcase heater richadzikiswa zvishoma, uye chiitiko chekutama chinogona kuramba chichiitika.
Ma crankcase heaters anowanzo gara achidziiswa kana achishandiswa, nekuti kana refrigerant yapinda mu crankcase yopinda mumafuta anotonhorera, zvinogona kutora kusvika maawa akati wandei kuti idzoserwe zvakare mu suction tube. Kana mamiriro acho asina kunyanya kuipa, crankcase heater inoshanda zvikuru kudzivirira kufamba, asi crankcase heater haigone kudzivirira compressor kubva mukukuvadzwa kunokonzerwa nekubuda kwemvura mumvura.
Chinoparadzanisa gasi-mvura nechubhu yekusvuta
Kune masisitimu anowanzo zara nemvura, muchina wekuparadzanisa gasi nemvura unofanirwa kuiswa pamuchina wekusveta kuti uchengetedze kwenguva pfupi mufiriji wemvura wabuda kubva musisitimu uye wodzorera mufiriji wemvura kucompressor nekukurumidza uko compressor inogona kutsungirira.
Kuzara kwemufiriji kunowanzoitika kana pombi yekupisa ikachinjwa kubva mumamiriro ekutonhodza kuenda kumamiriro ekudziya, uye kazhinji, chiparadzanisa chegasi-mvura chinosveta chinhu chinodiwa mumapombi ese ekupisa.
Masisitimu anoshandisa gasi rinopisa pakunyungudutsa anogonawo kuzara mvura pakutanga nepakupera kwe defroster. Midziyo isina kupisa zvakanyanya yakaita se liquid freezers nema compressor muzviratidziro zvekupisa kwakaderera dzimwe nguva zvinogona kukonzera kuzara nekuda kwekusadzora zvakanaka refrigerant. Kune michina yemotokari, kana ichinge yavharwa kwenguva refu, inogonawo kuzara zvakanyanya painotangazve.
Mu compressor ine nhanho mbiri, kusveta kunodzoserwa zvakananga ku cylinder yepasi uye hakupfuuri nemukamuri remota, uye muchina wekuparadzanisa gasi nemvura unofanirwa kushandiswa kudzivirira vharuvhu ye compressor kubva mukukuvadzwa nekuputswa kwemvura.
Nekuti zvinodiwa zvekuchaja zvese zvemasisitimu akasiyana ekufiriji zvakasiyana, uye nzira dzekudzora refrigerant dzakasiyana, kana gas-liquid separator ichidiwa uye kuti inodiwa gas-liquid separator yakakura sei zvichienderana nezvinodiwa zvesystem chaiyo. Kana huwandu hwemvura inodzokera shure husina kuyedzwa nemazvo, nzira yekugadzira ine hungwaru ndeyekuona kugona kwegas-liquid separator pa50% yehuwandu hwese system charging.
Musiyanisi wemafuta
Chinoparadzanisa mafuta hachigone kugadzirisa dambudziko rekudzoserwa kwemafuta rinokonzerwa nekugadzirwa kwesystem, uye hachigone kugadzirisa dambudziko rekudzora refrigerant remvura. Zvisinei, kana kutadza kwekudzora system kusingagone kugadziriswa nedzimwe nzira, chinoparadzanisa mafuta chinobatsira kuderedza huwandu hwemafuta anotenderera musystem, izvo zvinogona kubatsira system kuburikidza nenguva yakaoma kusvika system control yadzorerwa kune yakajairika. Semuenzaniso, muyuniti yekupisa yakaderera kana full liquid evaporator, mafuta ekudzoserwa anogona kukanganiswa nekunyungudika, uye muchiitiko ichocho chinoparadzanisa mafuta chinogona kubatsira kuchengetedza huwandu hwemafuta anotonhorera mucompressor panguva yekunyungudika kwesystem.
Nguva yekutumira: Gunyana-07-2023
