Kukho iindlela ezininzi zokugcina ifriji, kwaye ezi zilandelayo zisetyenziswa rhoqo:
1. Ulwelo olukhupha umphunga olubandayo
2. Ukwandiswa kwegesi kunye nokugcinwa kwefriji
3. Ifriji yetyhubhu yeVortex
4. Ukupholisa nge-thermoelectric
Phakathi kwazo, ukupholisha ulwelo oluphuma kwi-vaporization yeyona isetyenziswa kakhulu. Isebenzisa isiphumo sokufunxa ubushushu sokufunxa ulwelo ukuze ifumane i-friji. Ukucinezelwa komphunga, ukufunxa, ukujova umphunga kunye nokupholisha ukufunxa zonke zii-friji zokufunxa ulwelo.
Ukupholisa ngokucinezelwa komphunga kuxhomekeke ekufudumaleni okutshintsha isigaba, okusebenzisa isiphumo sokufunxa ubushushu xa ifriji itshintsha ukusuka kulwelo ukuya kwigesi ukuze ifumane amandla abandayo. Yakhiwe ngamacandelo amane: i-compressor, i-condenser, i-throttling mechanism kunye ne-evaporator. Ziqhagamshelwe ngemibhobho ukuze zenze inkqubo evaliweyo.
Izinto eziphambili zokukhenkceza kunye nezixhobo
1. Isixinizelelo
Iicompressor zahlulwe zibe zizakhiwo ezintathu: uhlobo oluvulekileyo, uhlobo oluvulekileyo kancinci, kunye nohlobo oluvaliweyo. Umsebenzi wecompressor kukufunxa i-refrigerant enobushushu obuphantsi kwicala le-evaporator, kwaye uyicinezele ibe ngumphunga we-refrigerant onobushushu obuphezulu, kwaye uyithumele kwi-condenser.
2.Isikhondensi
I-condenser sisixhobo sokutshintshiselana nobushushu esidlulisela amandla okukhenkceza e-evaporator kwinkqubo yokukhenkceza kunye nomsebenzi wokubonisa ukucinezelwa kwe-compressor ukuya kwindawo yokusingqongileyo (amanzi apholisayo okanye umoya). Ngokwendlela yokukhenkceza, i-condenser inokwahlulwa ibe yi-air-cooled, i-water-cooled kunye ne-evaporative. I-condenser sisixhobo sokutshintshiselana nobushushu esidlulisela amandla okukhenkceza e-evaporator kwinkqubo yokukhenkceza kunye nomsebenzi wokubonisa ukucinezelwa kwe-compressor ukuya kwindawo yokusingqongileyo (amanzi apholisayo okanye umoya). Ngokwendlela yokukhenkceza, i-condenser inokwahlulwa ibe yi-air-cooled, i-water-cooled kunye ne-evaporative.
3. Umphunga
I-evaporator ithetha ukuba ulwelo lwe-refrigerant luyabila luze lufunxe ubushushu be-medium epholileyo (umoya okanye amanzi) kubushushu obuphantsi ukuze kufezekiswe injongo yokuyibeka efrijini.
4. Ivalvu yeSolenoid
Ivalvu yeSolenoid luhlobo lwevalvu yokuvala evulwa ngokuzenzekelayo phantsi kolawulo lombane. Idla ngokufakelwa kumbhobho wenkqubo ukuze ivule kwaye icime ngokuzenzekelayo i-actuator yesilawuli seendawo ezimbini sombhobho wenkqubo yokufriji. Ivalvu yeSolenoid idla ngokufakelwa phakathi kwevalvu yokwandisa kunye ne-condenser. Indawo kufuneka isondele kangangoko kunokwenzeka kwivalvu yokwandisa, kuba ivalvu yokwandisa yinto nje yokuthomalalisa kwaye ayinakuvalwa yodwa, ngoko ke kufuneka kusetyenziswe ivalvu yesolenoid ukusika umbhobho wokuhambisa ulwelo.
5. Ivalvu yokwandisa ubushushu
Izixhobo zokukhenkcisa zihlala zisebenzisa iivalvu zokwandisa ubushushu ukulungisa ukuhamba kwefriji. Ayisiyovalvu elawulayo kuphela elawula ulwelo lwe-evaporator, kodwa ikwayivalvu yokunyusa yesixhobo sokukhenkcisa. Ivalvu yokwandisa ubushushu isebenzisa utshintsho kubushushu obukhulu befriji kwindawo yokuphuma ye-evaporator ukulungisa ulwelo. Ivalvu yokwandisa ubushushu iqhagamshelwe kumbhobho wokungena ulwelo we-evaporator, kwaye ibhalbhu yokuva ubushushu ibekwa kumbhobho wokukhupha we-evaporator. Idla ngokwahlulwahlulwa ibe zizakhiwo ezahlukeneyo ngokwesakhiwo sevalvu yokwandisa ubushushu:
(1) Ivalvu yokwandisa ubushushu elinganisiweyo ngaphakathi;
(2) Ivalvu yokwandisa ubushushu elinganisiweyo ngaphandle.
Ivalvu yokwandisa ubushushu elungelelanisiweyo ngaphakathi: Yenziwe ngebhalbhu yokuva ubushushu, ityhubhu ye-capillary, isihlalo sevalvu, i-diaphragm, intonga ye-ejector, inaliti yevalvu kunye nendlela yokulungisa. Iivalvu zokwandisa ubushushu ezilungelelanisiweyo ngaphakathi zihlala zisetyenziswa kwii-evaporators ezincinci.
Ivalvu yokwandisa ubushushu elinganisiweyo ngaphandle: Ivalvu yokwandisa ubushushu elinganisiweyo ngaphandle Kwi-evaporators ezinemibhobho emide okanye ukumelana okukhulu, iivalvu zokwandisa ubushushu ezilinganisiweyo ngaphandle zihlala zisetyenziswa. Kwi-evaporator enobukhulu obufanayo, ivalvu yokwandisa elinganisiweyo ngaphakathi ingasetyenziswa xa isetyenziswa kwindawo yokugcina ubushushu obuphezulu, ngelixa ivalvu yokwandisa elinganisiweyo ngaphandle ingasetyenziswa xa isetyenziswa kwindawo yokugcina ubushushu obuphantsi. Kwi-evaporator enobukhulu obufanayo, ivalvu yokwandisa elinganisiweyo ngaphakathi ingasetyenziswa xa isetyenziswa kwindawo yokugcina ubushushu obuphezulu, ngelixa ivalvu yokwandisa elinganisiweyo ngaphandle ingasetyenziswa xa isetyenziswa kwindawo yokugcina ubushushu obuphantsi.
6. Isahluli seoyile
Isixhobo sokwahlula ioyile sidla ngokufakelwa phakathi kwecompressor kunye necondenser ukuze kwahlulwe ioyile yomatshini wokukhenkcisa efakwe kumphunga wefriji. Isixhobo sokubuyisela ioyile sisetyenziselwa ukubuyisela ioyile yomatshini wokukhenkcisa kwi-crankcase yecompressor; isakhiwo esisetyenziswa kakhulu somatshini wokukhenkcisa ioyile sineentlobo ezimbini: uhlobo lwe-centrifugal kunye nohlobo lwesihluzi.
7. Isahluli segesi nolwelo
Yahlula i-refrigerant yegesi kwi-refrigerant engamanzi ukuze uthintele i-compressor kwi-hammer engamanzi; gcina ulwelo lwe-refrigerant kumjikelo we-friji, kwaye ulungise umbane ngokwenguqu yomthwalo.
8. Idama lokugcina amanzi
Ngokumisela i-accumulator, amandla okugcina ulwelo lwe-accumulator angasetyenziselwa ukulinganisela nokuzinzisa ukujikeleza kwe-refrigerant kwinkqubo, ukuze isixhobo sokufriji sisebenze ngendlela eqhelekileyo. I-accumulator idla ngokubekwa phakathi kwe-condenser kunye ne-throttling element. Ukuze i-refrigerant yolwelo kwi-condenser ingene kakuhle kwi-accumulator, indawo ye-accumulator kufuneka ibe ngaphantsi kune-condenser.
9. Umatshini wokomisa
Ukuze kuqinisekiswe ukuba i-refrigerant ihamba rhoqo, inkqubo yokukhenkcisa kufuneka igcinwe icocekile kwaye yomile. Isixhobo sokuhluza sidla ngokufakelwa ngaphambi kokuba i-throttling element idlule. Xa i-refrigerant engamanzi idlula kwi-filter dryer, inokuthintela ngokufanelekileyo ukuvaleka kwe-throttling element.
10. Iglasi yokubona
Isetyenziswa kakhulu ukubonisa imeko yefriji kumbhobho wolwelo wesixhobo sokuqandisa kunye nomxholo wamanzi kwifriji. Ngokwesiqhelo, imibala eyahlukeneyo iphawulwa kwikhava yeglasi ukubonisa umxholo wamanzi kwifriji kwinkqubo.
11. Ukudluliselwa kwamandla ombane aphezulu naphantsi
Ukuba uxinzelelo lokukhupha i-compressor luphezulu kakhulu, luya kuqhawula ngokuzenzekelayo, luyeke i-compressor kwaye lususe unobangela woxinzelelo oluphezulu, uze uyiqalise ngesandla ukuze uqalise i-compressor (impazamo + i-alamu); xa uxinzelelo lokufunxa luhla luye kumda osezantsi, luya kuqhawula ngokuzenzekelayo. Yima i-compressor, kwaye uyinike amandla kwakhona i-compressor xa uxinzelelo lokufunxa lunyuka luye kumda ophezulu.
12. Ireyi yoxinzelelo lweoyile eyahlukileyo
Iswitshi yombane esebenzisa umahluko woxinzelelo phakathi kokufunxa kunye nokukhupha ipompo yeoyile yokuthambisa njengomqondiso wolawulo, xa umahluko woxinzelelo ungaphantsi kwexabiso elibekiweyo, iyayimisa icompressor ukuba iyikhusele.
13. Ukudluliselwa kobushushu
Sebenzisa ubushushu njengophawu lolawulo ukulawula ubushushu bendawo yokugcina ebandayo. Ukuqala kunye nokuma kwecompressor kunokulawulwa ngokuthe ngqo ngokulawula ukuvulwa kunye nokucinywa kwevalvu yesolenoid yombane; xa umatshini omnye uneebhanki ezininzi, ukudluliselwa kobushushu bebhanki nganye kunokuqhagamshelwa ngaxeshanye ukulawula ukuqala kunye nokuma ngokuzenzekelayo kwecompressor.
14. Isiqandisi
Iifriji, ezaziwa ngokuba ziifriji kunye neefriji, zizixhobo zemidiya ezisetyenziswa kwiinjini ezahlukeneyo zobushushu ukugqibezela ukuguqulwa kwamandla. Ezi zinto zihlala zisebenzisa utshintsho lwesigaba oluguqukayo (njengotshintsho lwesigaba segesi-ulwelo) ukwandisa amandla.
15. Ioyile yefriji
Umsebenzi weoyile yomatshini wokufrijisa ngokuyintloko kukuthambisa, ukuvala, ukupholisa kunye nokucoca. Kwiicompressors ezineesilinda ezininzi, ioyile yokuthambisa ingasetyenziselwa ukulawula indlela yokukhupha impahla.
Ixesha lokuthumela: Novemba-15-2021