Ingxaki yokubuyiselwa kweoyile kwiicompressor zefriji ibisoloko ingumxholo oshushu kwiinkqubo zefriji. Namhlanje, ndiza kuthetha ngengxaki yokubuyiselwa kweoyile kwiicompressor zescrew. Ngokubanzi, isizathu sokubuyiselwa kweoyile embi kwicompressor yescrew sibangelwa kakhulu kukuxubana kwegesi kweoyile yokuthambisa kunye nefriji ngexesha lokusebenza. Ngexesha lokusebenza kwenkqubo yefriji, ifriji kunye neoyile yokuthambisa yefriji ziyanyibilika zombini, nto leyo ebangela ukuba ioyile yokuthambisa ikhutshwe kwi-condenser ngendlela ye-aerosol kunye ne-droplet gas xa umatshini kunye nefriji isebenza. Ukuba i-oyile yokwahlulahlula ayisebenzi okanye uyilo lwenkqubo alulunganga, luya kubangela isiphumo sokwahlukana esibi kunye nokubuyiselwa kweoyile yenkqubo okubi.
1. Zeziphi iingxaki eziya kwenzeka ngenxa yokubuya kakubi kweoyile:
Ukubuya kakubi kweoyile ye-screw compressor kuya kubangela ukuba inani elikhulu leoyile yokuthambisa lihlale kumbhobho we-evaporator. Xa ifilimu yeoyile isanda ukuya kwinqanaba elithile, iya kuchaphazela ngqo ukupholisa kwenkqubo; Iya kukhokelela ekuqokeleleni kweoyile yokuthambisa eninzi kwinkqubo, nto leyo ekhokelela kwisangqa esibi, ukwandisa iindleko zokusebenza kunye nokunciphisa ukuthembeka kokusebenza. Ngokubanzi, ngaphantsi kwe-1% yokuhamba kwegesi yefriji kuvunyelwe ukuba ijikeleze kwinkqubo ngomxube weoyile nomoya.
2. Izisombululo zokungasebenzi kakuhle kweoyile:
Kukho iindlela ezimbini zokubuyisela ioyile kwicompressor, enye kukubuyisela ioyile kwisahluli seoyile, enye kukubuyisela ioyile kumbhobho wokubuyisela umoya.
I-oil separator ifakwe kumbhobho wokukhupha umoya wecompressor, onokuhlukanisa ngokubanzi i-50-95% yeoyile esebenzayo. Isiphumo sokubuya kweoyile silungile kwaye isantya siyakhawuleza, nto leyo enciphisa kakhulu inani leoyile engena kumbhobho wenkqubo, ngaloo ndlela yolula ukusebenza ngaphandle kwexesha lokubuyisa ioyile.
Kwiinkqubo zokugcina iifriji ezibandayo ezinemibhobho emide ngokukodwa, iinkqubo zokwenza umkhenkce ezigcwele amanzi, kunye nezixhobo zokomisa umkhenkce ezinamaqondo obushushu aphantsi kakhulu, akuqhelekanga ukubona ukubuya kweoyile okanye ukubuya kweoyile okuncinci kakhulu imizuzu elishumi okanye amashumi emva kokuqalisa umatshini. Inkqubo embi iya kubangela ukuba icompressor ivale ngenxa yoxinzelelo lweoyile oluphantsi. Ukufakelwa kwesixhobo sokwahlula ioyile esisebenza kakuhle kule nkqubo yokukhenkceza kunokwandisa kakhulu ixesha lokusebenza kwecompressor ngaphandle kokubuya kweoyile, ukuze icompressor idlule ngokukhuselekileyo kwinqanaba lengxaki yokungabikho kokubuya kweoyile emva kokuqalisa. Ioyile yokuthambisa engahlukaniswanga iya kungena kwinkqubo ize ihambe nefriji ekwityhubhu ukuze yenze ukujikeleza kweoyile.
Emva kokuba ioyile yokuthambisa ingenile kwi-evaporator, kwelinye icala, ngenxa yobushushu obuphantsi kunye nokunyibilika okuphantsi, inxalenye yeoyile yokuthambisa iyahlulwa kwi-refrigerant; kwelinye icala, ubushushu buphantsi kwaye i-viscosity inkulu, ioyile yokuthambisa eyahlukileyo kulula ukuyinamathela eludongeni lwangaphakathi lwetyhubhu, kwaye kunzima ukuyihamba. Okukhona ubushushu bokuthambisa buphantsi, kokukhona kunzima ukubuyisela ioyile. Oku kufuna ukuba uyilo kunye nokwakhiwa kombhobho wokuthambisa kunye nombhobho wokubuyisela kufuneka kube luncedo ekubuyeni kweoyile. Isiqhelo kukusebenzisa uyilo lombhobho ohlayo kwaye kuqinisekiswe isantya esikhulu sokuhamba komoya. Kwiinkqubo zokufriji ezineqondo lobushushu eliphantsi kakhulu, ukongeza ekukhetheni abahluli beoyile abasebenza kakuhle, izinyibilikisi ezikhethekileyo zihlala zongezwa ukuthintela ioyile yokuthambisa ekuvaleleni iityhubhu ze-capillary kunye neevalvu zokwandisa, kunye nokunceda ioyile ibuyele.
Kwiindlela ezisebenzayo, iingxaki zokubuyisa ioyile ezibangelwa kuyilo olungafanelekanga lwepayipi yegesi ephumayo kunye negesi ebuyayo aziqhelekanga. Kwiinkqubo ze-R22 kunye ne-R404A, ukubuya kweoyile yepayipi ephumayo kunzima kakhulu, kwaye uyilo lwepayipi yokubuyisela ioyile yenkqubo kufuneka luqaphele kakhulu. Kwinkqubo enjalo, ukusetyenziswa kokwahlulwa kweoyile esebenza kakuhle kunokunciphisa kakhulu inani leoyile engena kwipayipi yenkqubo, nto leyo eyandisa ixesha apho ipayipi yokubuyisela igesi ingabuyisi ioyile emva kokuqala umatshini.
Xa icompressor iphezulu kune-evaporator, ukugoba kweoyile kumbhobho wokubuyisela othe nkqo kuyimfuneko. Umgibe wokubuyisela ioyile kufuneka ube mncinci kangangoko ukunciphisa ukugcinwa kweoyile. Isithuba phakathi kokugoba kweoyile kufuneka sibe sihle. Xa inani lokugoba kweoyile likhulu, kufuneka kongezwe ioyile yokuthambisa. Kufuneka kuthathelwe ingqalelo nakwiindlela zokubuyisela zeenkqubo zomthwalo oguquguqukayo. Xa umthwalo uncitshisiwe, isantya sokubuyisela umoya siya kuncipha, kwaye isantya siphantsi kakhulu, nto leyo engayi kunceda ekubuyiseleni ioyile. Ukuze kuqinisekiswe ukubuya kweoyile phantsi komthwalo ophantsi, umbhobho wokufunxa othe nkqo unokusebenzisa i-double riser.
Ngaphezu koko, ukuqala rhoqo kwecompressor akuhambisani nokubuyiselwa kweoyile. Ngenxa yokuba ixesha lokusebenza eliqhubekayo lifutshane kakhulu, icompressor iyayeka, kwaye akukho xesha lokwenza ukuhamba komoya okuzinzileyo ngesantya esiphezulu kumbhobho wokubuyisela, ngoko ke ioyile yokuthambisa ingahlala kuphela kumbhobho. Ukuba ioyile yokubuyisela ingaphantsi kweoyile esebenzayo, icompressor iya kuba ncinci kwioyile. Okukhona ixesha lokusebenza lifutshane, kokukhona umbhobho umde, kokukhona inkqubo inzima, kokukhona ingxaki yokubuyiselwa kweoyile ibonakala ngakumbi. Ke ngoko, phantsi kweemeko eziqhelekileyo, musa ukuyiqala rhoqo icompressor.
Ukunqongophala kweoyile kuya kubangela ukunqongophala okukhulu kwe-oyile. Isizathu esiyintloko sokunqongophala kweoyile asikokuba i-screw compressor isebenza kangakanani kwaye ikhawuleza kangakanani, kodwa kukubuya kweoyile okungalunganga kwenkqubo. Ukufaka i-oyile yokwahlulahlula kunokubuyisela ioyile ngokukhawuleza kwaye kwandise ixesha lokusebenza kwe-compressor ngaphandle kokubuya kweoyile. Uyilo lwe-evaporator kunye nomgca wokubuyisela kufuneka luqwalasele ukubuya kweoyile. Amanyathelo okugcina anjengokuphepha ukuqala rhoqo, ukunyibilikisa rhoqo, ukugcwalisa kwakhona i-refrigerant ngexesha, kunye nokutshintsha iindawo ezigugileyo (ezifana neebheringi) ngexesha nako kunceda ukubuya kweoyile.
Xa kuyilwa inkqubo yokukhenkcisa, uphando ngengxaki yokubuyiselwa kweoyile alunakulinganiswa. Kuphela ngokuqwalasela zonke iinkalo apho inkqubo yokukhenkcisa ekhuselekileyo nethembekileyo inokuqinisekiswa khona.
Ixesha lokuthumela: Feb-21-2022
