Umoya opholile kanyeindawo yokugcina ebandayoukucindezela okugcina ukusebenza kanye nezinyathelo zokuphepha.
I-ruhlelo lwesiqandisiluhlelo oluvaliwe. Ukuqina komoya kohlelo lokuqandisa ngemva kokulungiswa kumele kuhlolwe ngokuqinile ukuqinisekisa ikhwalithi yokulungisa, ukuthuthukisa ukuthembeka kokusebenza, ukunciphisa ukulahleka kwe-refrigerant, nokuthuthukisa ukonga kokusebenza. I-refrigerant ingena kakhulu emanzini. Ngakho-ke, kubalulekile ukuhlola ukuqina komoya kohlelo lokuqandisa.
Kufanele kuqashelwe ukuthi igesi ye-nitrogen kumele isetshenziselwe ukugcina ingcindezi ohlelweni lokuqandisa. I-oxygen iyigesi evuthayo. Uma i-oxygen isetshenziselwa ukugcina ingcindezi, ingabangela umlilo noma ukuqhuma!
- Ukusebenza kokugcina umfutho endaweni yokugcina ebanda encane nephakathi nendawo:
Kunconywa ukuthi ucindezele izinhlangothi zombili zegesi kanye noketshezi ngesikhathi esisodwa. Okokuqala, xhuma i-pressure gauge kumzila wezinhloso eziningi we-valve yokuvala umfutho ophezulu nophansi ye-compressor, bese ususa izingxenye ohlelweni lokuqala okungafanele zicindezelwe ngokweqile, njenge-valve yokulawula umfutho wokuhwamuka kanye nezinye izingxenye.
Uma sithatha i-refrigerant ye-R22 njengesibonelo, uma ingcindezi ephansi ingu-1.2MPa, ukushaja kwe-nitrogen kuyamiswa. Ngemva kokuthi ukuhlolwa kwesigaba sokucindezela okuphansi sekuqediwe, kwenziwa ukuhlolwa kwengcindezi yesistimu yokucindezela okuphezulu. Ngemva kokuthi ingcindezi yesistimu yokucindezela okuphezulu inyuswe ibe ngu-2.5MPa, ukushaja kwe-nitrogen kuyamiswa. Gcina ingcindezi amahora angu-24 ~ 48.
| Uhlelo lwesiqandisi | R134a | R22 | R401A, R402A,R404A,R407A,R407B,R407C,R507 |
| Uhlelo lokucindezela oluphansi | 1.2 | 1.2 | 1.2 |
| Uhlelo lokushisa oluphezulu | 2.0 | 2.5 | 3.0 |
Izinyathelo zokuzivikela:
Emahoreni okuqala angu-4 esistimu, ingcindezi yegeji yokwehla kwengcindezi ayidluli ku-0.03MPa, bese iqhubeka izinzile (ngesikhathi senqubo yokuhlola, ukwehla kwengcindezi ngenxa yokushintsha kwezinga lokushisa ngokuvamile akudluli ingcindezi yegeji engu-0.01~0.03MPa), futhi uhlelo lwesiqandisi lungabhekwa njengolufanelekela ukuhlolwa kokuvuza.
2. Ukusebenza kokugcina ingcindezi yesistimu yemigqa eminingi
Isixhumi esiningi kumele sicindezelwe kusukela ezinhlangothini zombili zepayipi legesi kanye nepayipi eliwuketshezi ngesikhathi esisodwa, ngoba ingcindezi ezinhlangothini zombili zegesi kanye noketshezi ingavikela izingxenye zevalvu njengevalvu yokwandisa kagesi ohlangothini lweyunithi yangaphakathi yesistimu yezixhumi eziningi ekulimaleni. I-nitrogen eyomile kumele isetshenziswe ekuhlolweni kokuqina komoya. Yenza i-medium.
Ngesikhathi sokuhlolwa kokuqina komoya, akuvunyelwe ukuxhuma ukuhlolwa kwepayipi lomshini wangaphandle. Ingcindezi yokuhlola yohlelo lwe-R410A ingu-4.0MPa, ukuhlolwa kokuqina komoya kumele kusebenzise i-nitrogen njenge-medium, kanti i-nitrogen kumele yome. Cindezela kancane, ngezinyathelo ezintathu:
| Cindezela | Isikhathi | Umsebenzi |
| 0.3MPa | >imizuzu emi-5 | Kungatholakala ukuvuza okukhulu |
| 1.5MPa | >imizuzu emi-5 | Kungatholakala ukuvuza okukhulu |
| 4.0MPa | Amahora angu-24 | Okuncane ukuvuza kungatholakala |
1. Cindezela ku-0.3MPa, hlala imizuzu emi-5 ukuze kuhlolwe ukuvuza, futhi ungase uthole ukuvuza okukhulu;
2. Cindezela ku-1.5MPa, hlala imizuzu emi-5 ukuze kuhlolwe ukuqina komoya, bese uthola ukuvuza okuncane;
3. Cindezela ku-4.0MPa, hlala imizuzu emi-5 ukuze uvivinye amandla, bese kutholakala amabhamuza amancane.
Ngemva kokucindezela ingcindezi yokuhlola, gcina ingcindezi amahora angama-24, bese ubheka ukuthi ingcindezi iyehla yini. Uma ingcindezi ingehli, iyafaneleka.
Ububanzi besilinganiso sokucindezela kokuhlolwa kwesistimu ye-R410A kufanele bube ngaphezu kwe-4.5MPa
Izinyathelo zokuzivikela:
Ukulungiswa kwengcindezi: Uma izinga lokushisa lishintsha ngo-1°C, ingcindezi ishintsha ngokufanayo ngo-0.01MPa. Uma ingcindezi idinga ukugcinwa isikhathi eside, ingcindezi kufanele yehliswe ibe ngu-0.5MPa noma ngaphansi. Ingcindezi ephezulu yesikhathi eside ingaholela ekuvuza kwezingxenye zokushisela, futhi kunezingozi zokuphepha ezingaba khona;
Ingcindezi ngemva kokubamba ingcindezi ithintwa yizinga lokushisa elizungezile. Njengoba izinga lokushisa likhuphuka, ingcindezi nayo izokhuphuka, futhi njengoba izinga lokushisa lehla, izinga lokushisa nalo lizokwehla. Uma izinga lokushisa elizungezile lalingu-10°C lapho ingcindezi igcinwa izolo, futhi izinga lokushisa likhuphuke ngokuzumayo laya ku-25°C namuhla, khona-ke uma izinga lokushisa lingu-15°C, igeyiji yokucindezela izokwehla, futhi kuvamile ukuthi ingcindezi yegeyiji ibe ngu-38.4kgf/cm².
ANgemva kokuhlolwa komfutho we-nitrogen okuqinisekisiwe, yomisa uhlelo nge-vacuum. Xhuma i-vacuum gauge bese usebenzisa i-vacuum pump isikhathi esingaphezu kwamahora ama-2. Uma ingakwazi ukufinyelela ku--755mmHg, qhubeka nokupompa ihora eli-1. Ngemva kokufinyelela ku--755mmHg, ingafakwa ihora eli-1, futhi ifanelekile uma i-vacuum gauge ingakhuphuki.
Isikhathi sokuthunyelwe: Juni-10-2022