Umjikelo we-compressor we-refrigeration wamanqanaba amabini ngokubanzi usebenzisa i-compressor ezimbini, ezizezi, i-compressor ephantsi kunye ne-high-pressure compressor.
1.1 Inkqubo yokwanda kwerhasi engumphunga ukusuka kuxinzelelo oluphuma ngumphunga ukuya kuxinzelelo lokujiya yahlulwe ngokwezigaba ezi-2.
Inqanaba lokuqala: Ukucinezelwa kuxinzelelo oluphakathi yicompressor yenqanaba elisezantsi kuqala:
Inqanaba lesibini: igesi ephantsi koxinzelelo oluphakathi iphinda ixinzelelwe kwi-condensation ye-condensation yi-compressor ye-high-pressure compressor emva kokupholisa okuphakathi, kwaye umjikelo wokubuyisela ugqiba inkqubo yefriji.
Xa uvelisa amaqondo okushisa aphantsi, i-intercooler yomjikelezo we-refrigeration ye-refrigeration yamanqanaba amabini inciphisa ukushisa kwe-inlet ye-refrigerant kwi-high-pressure stage compressor, kunye nokunciphisa ukushisa kokukhutshwa kwe-compressor efanayo.
Ekubeni umjikelo we-refrigeration wamanqanaba amabini uhlula yonke inkqubo yefriji ibe ngamanqanaba amabini, umlinganiselo wokunyanzeliswa kwesigaba ngasinye uya kuba ngaphantsi kakhulu kunokokunyanzeliswa kwenqanaba elinye, ukunciphisa iimfuno zamandla ezixhobo kunye nokuphucula kakhulu ukusebenza kakuhle komjikelezo wefriji. Umjikelo wokupholisa wamanqanaba amabini wahlulwe waba ngumjikelo ophakathi opheleleyo wokupholisa kunye nomjikelo wokupholisa ophakathi ongaphelelanga ngokweendlela ezahlukeneyo zokupholisa eziphakathi; ukuba isekelwe kwindlela ye-throttling, inokwahlulwa ibe yinqanaba lokuqala lokujikeleza kunye nomjikelezo wesigaba sesibini.
1.2 Iintlobo zefriji zokucinezelwa kwamanqanaba amabini
Uninzi lweenkqubo zefriji zokuxinwa kwezigaba ezimbini zikhetha iifriji eziphakathi kunye neziphantsi. Uphando lovavanyo lubonisa ukuba i-R448A kunye ne-R455a zizinto ezilungileyo ezithatha indawo ye-R404A ngokokusebenza kakuhle kwamandla. Xa kuthelekiswa nezinye izinto ezinokusetyenziswa kwi-hydrofluorocarbons, i-CO2, njengolwelo olusebenzayo oluhambelana nokusingqongileyo, inokuthatha indawo yeefriji ze-hydrofluorocarbon kwaye ineempawu ezintle zokusingqongileyo.
Kodwa ukutshintsha i-R134a nge-CO2 kuya kuphazamisa ukusebenza kwenkqubo, ngakumbi kumaqondo obushushu aphezulu, uxinzelelo lwenkqubo ye-CO2 luphezulu kakhulu kwaye lufuna unyango olukhethekileyo lwamacandelo aphambili, ngakumbi icompressor.
1.3 Uphando lokuphucula kwifriji yoxinzelelo olunamanqanaba amabini
Okwangoku, iziphumo zophando lokuphucula umgangatho wenkqubo yomjikelo wefriji woxinzelelo lwamanqanaba amabini zimi ngolu hlobo lulandelayo:
(1) Ngelixa unyusa inani lemiqolo yetyhubhu kwi-intercooler, ukunciphisa inani lemiqolo yetyhubhu kwi-cooler yomoya kunokunyusa indawo yokutshintshiselana kobushushu be-intercooler ngelixa unciphisa ukuhamba komoya okubangelwa inani elikhulu lemiqolo yetyhubhu kwindawo epholileyo yomoya. Ukubuyela kwi-inlet yayo, ngokuphuculwa ngasentla, ukushisa kwe-inlet ye-intercooler kungancitshiswa malunga ne-2 ° C, kwaye ngelo xesha, umphumo wokupholisa we-cooler air unokuqinisekiswa.
(2) Gcina i-frequency ye-low-pressure compressor rhoqo, kwaye utshintshe i-frequency ye-high-pressure compressor, ngaloo ndlela utshintshe umlinganiselo wevolumu yokuhanjiswa kwegesi ye-high-pressure compressor. Xa ubushushu be-evaporation buhlala buhlala kwi--20 ° C, i-COP ephezulu yi-3.374, kwaye ubuninzi Umlinganiselo wokuhanjiswa kwegesi ohambelana ne-COP yi-1.819.
(3) Ngokuthelekisa iinkqubo ezininzi ze-CO2 eziguqulelwe kwizigaba ezibini zoxinzelelo lwefriji, kugqitywa ukuba ubushushu bokukhutshwa kwegesi epholileyo kunye nokusebenza kakuhle kwenqanaba loxinzelelo oluphantsi lwecompressor kunempembelelo enkulu kumjikelo kuxinzelelo olunikiweyo, ngoko ke ukuba ufuna ukwenza Ukuphucula ukusebenza kakuhle kwenkqubo, kuyimfuneko ukunciphisa ubushushu bendawo yokuphola kwegesi kwaye ukhethe inqanaba eliphantsi loxinzelelo oluphezulu.
Ixesha lokuposa: Mar-22-2023