Isiqandisi kumakhaza ezimboni sidlula izigaba ezine: ukuhwamuka, ukuminyanisa, ukufingqa, nokunwetshwa. Imunca ukushisa ku-evaporator, icindezelwe ekucindezelweni okuphezulu, ikhiphe ukushisa ku-condenser, bese iyanwebeka, iqale kabusha umjikelezo. Le nqubo ephumelelayo iqinisekisa ukupholisa okuphumelelayo kwezinhlelo zokusebenza ezihlukahlukene zezimboni.
Kumasistimu okupholisa apholile ezimbonini , isiqandisi sizungeza uchungechunge lokuguqulwa kwamandla kanye nezinguquko zesigaba ukuze kuzuzwe ukupholisa okusebenzayo. Le nqubo ihlanganisa izigaba ezine ezibalulekile: ukuhwamuka, ukuminyanisa, ukufingqa, nokunwetshwa.
1. Ukuhwamuka:
Ku-evaporator, isiqandisi soketshezi esinomfutho ophansi simunca ukushisa endaweni ezungezile, sisenze sihwamuke sibe igesi. Lokhu kumunca ukushisa kwehlisa izinga lokushisa le-ambient, kudala umphumela wokupholisa ofunekayo.
2. Ukucindezelwa:
Isiqandisi segesi sibe sesingena ku-compressor, lapho kusetshenziswa khona amandla omshini ukuze kwandiswe ingcindezi kanye nezinga lokushisa. Lesi sinyathelo siguqula isiqandisi sibe yisimo somfutho ophezulu, izinga lokushisa eliphezulu.
3. Ukujiya:
Okulandelayo, i-high-pressure, i-high-temperature epholile igeleza ku-condenser. Lapha, idedela ukushisa endaweni ezungezile bese ijiya kancane kancane ibuyele esimweni samanzi. Phakathi nalesi sigaba, izinga lokushisa esiqandisini liyancipha ngenkathi ligcina ukucindezela okukhulu.
4. Ukunwetshwa:
Ekugcineni, isiqandisi se-high-pressure liquid refrigerant sidlula ku-valve yokwandisa noma i-throttle, lapho ukucindezela kwaso kwehla ngokuzumayo, kusibuyisela esimweni sokucindezela okuphansi. Lokhu kulungiselela isiqandisi ukuthi siphinde singene ku-evaporator bese siphinda umjikelezo.
Lo mjikelezo oqhubekayo uqinisekisa ukudluliswa kokushisa okuphumelelayo futhi ugcina ukusebenza okuzinzile kokupholisa kwama-industrial chiller, okusekela izinhlelo zokusebenza ezihlukahlukene zezimboni.
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