Qhagamshelana nathiukukunceda uyisombulule ngempumelelo
1. Ukuvaleka komkhenkce
Izizathu zokuvaleka komkhenkce
Isizathu esiphambili kukuba kukho ukufuma okugqithisileyoinkqubo yokukhenkcisa. Xa i-refrigerant ijikeleza rhoqo, ukufuma kwinkqubo yokukhenkceza kugxila kancinci kancinci kwindawo yokuphuma kwevalvu yokwandisa. Ekubeni ubushushu kwindawo yokuphuma kwevalvu yokwandisa buphantsi, amanzi ayabanda abe ngumkhenkce aze anyuke kancinci kancinci. Xa efikelela kwinqanaba elithile, ayivala ngokupheleleyo ivalvu yokwandisa kwaye i-refrigerant ayikwazi ukujikeleza.
Eyona mithombo iphambili yokufuma kwinkqubo yokukhenkceza yile:
- Iphepha lokukhusela injini kwicompressor liqulathe umswakama, ongumthombo ophambili womswakama kwinkqubo.
- Ukufuma okuseleyo kwiindawo kunye nemibhobho edibanisayo yenkqubo yokukhenkceza ngenxa yokungomi ngokwaneleyo;
- Ioyile yokukhenkcisa kunye nefriji ziqulathe umswakama ongaphezulu kunovunyelweyo;
- Ngexesha lokuhlanganiswa okanye ukugcinwa, umbhobho uhlala uvulekile ixesha elide, nto leyo ebangela ukuba umswakama osemoyeni ufunxwe liphepha lokukhusela injini kunye neoyile yokukhenkcisa.
Ngenxa yezi zizathu zingasentla, umthamo wamanzi kwinkqubo yokukhenkcisa udlula ubungakanani obuvumelekileyo benkqubo yokukhenkcisa, nto leyo ebangela ukuba umkhenkce uvaleke.
Impembelelo yokuvaleka komkhenkce kwinkqubo yokukhenkcisa
Kwelinye icala, ukuvaleka komkhenkce kubangela ukuba i-refrigerant ingakwazi ukujikeleza, kwaye inkqubo ye-friji ayinakuyibeka efrijini ngokuqhelekileyo; kwelinye icala, ukufuma kuya kusabela ngokweekhemikhali kunye ne-refrigerant ukuvelisa i-hydrochloric acid kunye ne-hydrogen fluoride, okubangela ukubola kwimibhobho yesinyithi kunye nezinto, kwaye kubangele nomonakalo kwi-insulation kwi-motor windings. Kwangaxeshanye, kuya kubangela nokuba ioyile ye-friji yonakale kwaye ichaphazele ukuthambisa kwe-compressor.
Ukubonakaliswa kokuvaleka komkhenkce kwinkqubo yokukhenkceza kukuba isebenza ngokuqhelekileyo kwinqanaba lokuqala, iqabaka kwi-evaporator, ukusasazwa kobushushu kwi-condenser, iyunithi isebenza kakuhle, kwaye isandi somsebenzi we-refrigerant kwi-evaporator sicacile kwaye sizinzile. Xa kusenziwa ukuvaleka komkhenkce, ukuhamba komoya kunokuvakala ukuba kubuthathaka kancinci kancinci kwaye kuqhubeke. Xa ukuvaleka kukhulu, isandi sokuhamba komoya siyanyamalala, ukujikeleza kwe-refrigerant kuyaphazamiseka, kwaye i-condenser iphola kancinci kancinci.
Ngenxa yokuvaleka, uxinzelelo lokukhupha umoya luyanda, isandi sokusebenza komatshini siyanda, akukho refrigerant ingena kwi-evaporator, indawo yokuqandisa iyancipha kancinci kancinci, ubushushu buyanda kancinci kancinci, kwaye ubushushu bevalvu yokwandisa buyanda kunye, ngoko ke umkhenkce uqala ukunyibilika, kwaye i-refrigerant iqala ukujikeleza kwakhona. Emva kwexesha elithile, ukuvaleka komkhenkce kwenzeka kwakhona, okwenza into yokuthintela ukudlula rhoqo.
Ukususwa kokuvaleka komkhenkce
Ukuvaleka komkhenkce kwenzeka kwinkqubo yokukhenkcisa kuba kukho ukufuma okugqithisileyo kwinkqubo, ngoko ke yonke inkqubo yokukhenkcisa kufuneka yomiswe. Zimbini iindlela zokuyilungisa:
- Sebenzisa i-oven yokomisa ukuze ufudumale kwaye womise inxalenye nganye. Le ndlela yeyona isebenzayo ekupheliseni ukuvaleka komkhenkce, kodwa isebenza kuphela kwiwaranti yomenzi wendawo yokugcina izinto ezibandayo.
- Sebenzisa iindlela zokucoca umoya oshushu kunye neendlela zokucoca umoya wesibini ukuze ususe umswakama kwicandelo ngalinye lenkqubo yokufriji.
2. Ukuvaleka kokungcola
Unobangela wokuvaleka okungcolileyo
Ibangelwa kukungcola okugqithisileyo kwinkqubo yokukhenkceza.
Xa ukungcola kunye nomgubo kudlula kwisihluzo esomileyo, uninzi lwazo lususwa sisihluzo esomileyo. Xa kukho ukungcola okungakumbi kwisihluzo esomileyo, ukungcola okuncinci kunye nokungcola kuziswa kwivalvu yokwandisa yifriji enesantya esiphezulu sokuhamba, kwaye kugcinwa kwaye kuqokelelene kwindawo enokumelana okukhulu kwicandelo lokugoba levalvu yokwandisa. Ukumelana kuya kusanda, okwenza kube lula ukuba ukungcola kugcinwe de ivalvu yokwandisa ivalwe kwaye inkqubo yokufriji ingakwazi ukujikeleza.
Ukongeza, umgama phakathi kwevalvu yokwandisa kunye nesihluzo kwisihluzo esomileyo usondelelene kakhulu, nto leyo elula ukubangela ukuvaleka okungcolileyo; ukongeza, xa kudityaniswa ivalvu yokwandisa kunye nesihluzo esomileyo, kulula nokuwelda umbhobho wevalvu yokwandisa.
Impembelelo yokuvaleka okungcolileyo kwinkqubo yokukhenkcisa
Xainkqubo yokukhenkcisaingcolile kwaye ivalekile, i-refrigerant ayikwazi ukujikeleza, nto leyo ebangela ukuba i-compressor isebenze rhoqo, i-evaporator ayibanda, i-condenser ayishushu, igobolondo le-compressor alishushu, kwaye akukho sandi sokuhamba komoya kwi-evaporator.
Ukuba ivalekile kancinci, i-evaporator iziva ipholile okanye inomkhenkce, kodwa akukho frost. Xa uchukumisa umphezulu ongaphandle we-filter dryer kunye ne-expansion valve, ivakala ibanda kakhulu, iqandisiwe, kwaye kuya kubakho umaleko we-white frost. Oku kungenxa yokuba xa i-refrigerant idlula kwi-filter dryer okanye i-expansion valve evalekileyo kancinci, ivelisa i-throttling kunye ne-pressure reduction effect, ebangela ukuba i-refrigerant ehamba nge-blockage yande, i-vaporize, kwaye ifunxe ubushushu, nto leyo ebangela ukuba i-condensation okanye i-frost ibe phezu komphezulu ongaphandle we-blockage.
Umahluko phakathi kokuvaleka komkhenkce kunye nokuvaleka okungcolileyo:
Emva kwexesha lokuvaleka komkhenkce, ifriji inokubuyiselwa, yenze umjikelo wokungavalwa, ngamanye amaxesha ungavalwa, ungavalwa uze ungavalwa. Nangona kunjalo, ifriji ayinakwenziwa emva kokuba kuvalwe ukungcola.
Ukusombulula iingxaki zokuvaleka kokungcola
- Sebenzisa i-nitrogen enoxinzelelo oluphezulu kunye nezinye iindlela zokukhupha ukungcola kwivalvu yokwandisa evaliweyo;
- Emva kokuba ivalvu yokwandisa ivuthuziwe, coca kwaye womise zonke iindawo ezikwinkqubo yokufriji uze uzihlanganise kwakhona kwaye uzidibanise ukuze kususwe ingxaki.
- Ukuba ivalvu yokwandisa ivalekile kakhulu, yitshintshe ivalvu yokwandisa ukuze ucime ingxaki.
3. Ukuvaleka kweoyile kunye nokunye ukuvaleka kwemibhobho
Ingxaki yokuvaleka kweoyile
Isilinda secompressor sigugile kakhulu okanye indawo ephakathi kwepiston nesilinda inkulu kakhulu.
Isizathu sokuvaleka kwezinye iipayipi zezi:
Umbhobho uvalwe yi-solder ngexesha lokuwelda; okanye xa umbhobho utshintshwa, umbhobho ngokwawo uvalwe ngaphandle kokuba ufunyanwe. Ke ngoko, kufuneka usebenze kwaye ujonge njengoko kufuneka xa uwelda kwaye utshintsha umbhobho, ukuze ungabangeli ukuvaleka okwenziweyo.
Impembelelo yokuvaleka kweoyile kwinkqubo yokukhenkcisa
Ipetroli ekhutshwa kwicompressor ikhutshwa kwi-condenser, ize ingene kwi-dryer filter kunye ne-refrigerant. Ngenxa ye-viscosity ephezulu yeoyile, ivalwa yi-desiccant ekwi-filter. Xa kukho ioyile eninzi kakhulu, yenza i-blockage kwindawo yokungena yesihluzo, ukuze i-refrigerant ingakwazi ukujikeleza ngokuqhelekileyo kwaye inkqubo yokufriji ayifaki efrijini.
Ukusombulula iingxaki zokuvaleka kweoyile
Kukho ioyile yokukhenkcisa eninzi kakhulu eseleyo kwinkqubo yokukhenkcisa, nto leyo echaphazela isiphumo sokukhenkcisa okanye ingaphumeleli nokuba sefrijini. Ke ngoko, ioyile yokukhenkcisa ekwinkqubo kufuneka icocwe.
Xa isihluzo sivalwe yioyile, kufuneka kutshintshwe isihluzo esitsha, kwaye kufuneka kusetyenziswe initrogen enoxinzelelo oluphezulu ukuze kuphulwe inxalenye yeoyile yokukhenkceza eqokelelwe kwi-condenser. Xa kungeniswa initrogen, isomisi seenwele singasetyenziselwa ukufudumeza i-condenser.
Qhagamshelana nathiukukunceda uyisombulule ngempumelelo
Ixesha lokuthumela: Juni-04-2025
