Izinhlelo eziningi zokupholisa umoya kanye neziqandisi zifaka amayunithi azo okupholisa ngaphandle ngezizathu ezimbili eziyinhloko. Okokuqala, lokhu kusebenzisa izinga lokushisa elipholile ngaphandle ukuze kususwe ukushisa okumuncwa yi-evaporator, kanti okwesibili, ukunciphisa ukungcola komsindo.
Amayunithi okujikisa umoya ngokuvamile aqukethe ama-compressor, ama-condenser coil, abalandeli be-condenser bangaphandle, ama-contactor, ama-starting relay, ama-capacitor, nama-solid state plates anama-circuits. I-receiver ivame ukufakwa kuyunithi yokujikisa umoya ohlelweni lokuqandisa. Ngaphakathi kweyunithi yokujikisa umoya, i-compressor ivame ukuba ne-heater exhunywe ngandlela thile phansi noma ku-crankcase. Lolu hlobo lwe-heater luvame ukubizwa ngokuthiisifudumezi se-crankcase.
Iisifudumezi se-crankcase se-compressoriyi-heater yokumelana evame ukuboshelwa phansi kwe-crankcase noma ifakwe emgodini ongaphakathi kwe-crankcase ye-compressor.Izifudumezi ze-crankcasezivame ukutholakala kuma-compressor lapho izinga lokushisa elizungezile liphansi kunezinga lokushisa le-evaporator yokusebenza kwesistimu.
Uwoyela we-crankcase noma uwoyela we-compressor unemisebenzi eminingi ebalulekile. Nakuba i-refrigerant iwuketshezi olusebenzayo oludingekayo ekupholiseni, uwoyela uyadingeka ukuze kugcotshwe izingxenye zemishini ezihambayo ze-compressor. Ngaphansi kwezimo ezivamile, kuhlale kunomthamo omncane wamafutha aphumayo e-crankcase ye-compressor futhi ajikeleze ne-refrigerant kulo lonke uhlelo. Ngokuhamba kwesikhathi, isivinini esifanele se-refrigerant ngepayipi lesistimu sizovumela lawa mafutha aphunyukile ukuthi abuyele e-crankcase, futhi yingakho uwoyela ne-refrigerant kumele kuncibilike. Ngesikhathi esifanayo, nokho, ukuncibilika kwamafutha ne-refrigerant kungabangela enye inkinga yesistimu. Inkinga ukufuduka kwe-refrigerant.
Ukufuduka kuyinto eyenzeka ngezikhathi ezithile. Lena inqubo lapho iziqandisi eziwuketshezi kanye/noma umusi zifuduka noma zibuyela emigqeni ye-crankcase kanye ne-suction ye-compressor ngesikhathi sokuvala komjikelezo we-compressor. Ngesikhathi sokuphela kwe-compressor, ikakhulukazi ngesikhathi sokuphela kwesikhathi eside, i-refrigerant kuzodingeka ithuthwe noma ithuthwe iye lapho ingcindezi iphansi khona. Ngokwemvelo, uketshezi lugeleza lusuka ezindaweni ezinengcindezi ephezulu luye ezindaweni ezinengcindezi ephansi. I-crankcase ivame ukuba nengcindezi ephansi kune-evaporator ngoba iqukethe uwoyela. Izinga lokushisa elipholile le-ambient landisa ingcindezi ephansi yomhwamuko futhi lisiza ukuhlanganisa umhwamuko we-refrigerant uye oketshezini oluse-crankcase.
Uwoyela oqandisiwe ngokwawo unengcindezi ephansi yomhwamuko, futhi kungakhathaliseki ukuthi i-refrigerant isesimweni somhwamuko noma uketshezi, izogeleza iye ku-oyela oqandisiwe. Eqinisweni, ingcindezi yomhwamuko wowoyela oqandisiwe iphansi kakhulu kangangokuthi noma ngabe i-vacuum engama-micron ayi-100 idonswa ohlelweni lokuqandisisa, ngeke iphele. Umhwamuko wamanye amafutha aqandisiwe wehliswa ube ngama-micron angu-5-10. Uma uwoyela ungenayo ingcindezi ephansi kangaka yomhwamuko, uzophela noma nini lapho kukhona ingcindezi ephansi noma i-vacuum ku-crankcase.
Njengoba ukufuduka kwesiqandisi kungenzeka ngomusi wesiqandisi, ukufuduka kungenzeka ekukhuphukeni noma ekwehleni. Lapho umusi wesiqandisi ufika ekhabetheni, uzomuncwa futhi unciphe emafutheni ngenxa yokungahlangani kwesiqandisi/uwoyela.
Ngesikhathi somjikelezo omude ovaliwe, i-liquid refrigerant izokwakha ungqimba olunemigqa phansi kwamafutha ku-crankcase. Lokhu kungenxa yokuthi ama-liquid refrigerant asinda kakhulu kunamafutha. Ngesikhathi somjikelezo omfushane wokuvala i-compressor, i-refrigerant ethuthiwe ayinalo ithuba lokuhlala ngaphansi kwamafutha, kodwa izoqhubeka nokuxubana namafutha ku-crankcase. Ngesikhathi sokushisa kanye/noma izinyanga ezibandayo lapho kungadingeki i-air conditioner, abanikazi bezindlu bavame ukuvala ukuxhuma ugesi kuyunithi yokupholisa umoya yangaphandle. Lokhu kuzokwenza ukuthi i-compressor ingabi nokushisa kwe-crankcase ngoba i-crankcase heater iphelelwe amandla. Ukufuduka kwe-refrigerant ku-crankcase kuzokwenzeka ngempela phakathi nalo mjikelezo omude.
Uma isizini yokupholisa isiqalile, uma umninikhaya engavuli i-circuit breaker okungenani amahora angu-24-48 ngaphambi kokuqala iyunithi yokupholisa umoya, kuzovela i-crankcase foam kanye nokucindezela okukhulu ngenxa yokufuduka kwesikhathi eside kwe-refrigerant engajikelezi.
Lokhu kungabangela ukuthi i-crankcase ilahlekelwe yizinga elifanele likawoyela, futhi kulimaze ama-bearings futhi kubangele okunye ukwehluleka kwemishini ngaphakathi kwe-compressor.
Ama-heater e-crankcase aklanyelwe ukusiza ukulwa nokufuduka kwe-refrigerant. Indima ye-crankcase heater ukugcina uwoyela ku-crankcase ye-compressor ekushiseni okuphezulu kunengxenye ebanda kakhulu yesistimu. Lokhu kuzoholela ekutheni i-crankcase ibe nomfutho ophakeme kancane kunezinye izinhlelo. I-refrigerant engena ku-crankcase izobe isishiswa umoya bese ibuyiselwa emuva emgqeni wokumunca.
Ngesikhathi esingesona esomjikelezo, ukufuduka kwe-refrigerant iye kwi-crankcase ye-compressor kuyinkinga enkulu. Lokhu kungabangela umonakalo omkhulu we-compressor
Isikhathi sokuthunyelwe: Septhemba-25-2024