Ka'idar sanyaya firiji ta dogara ne akan zagayowar Carnot ta baya, inda refrigerant shine tsakiyar tsakiya, kuma ana jigilar zafi a cikin firiji zuwa waje ta hanyar canjin yanayi na vaporization endothermic - condensation exothermic.
Maɓallan mahimmanci:
①Wurin tafasa:Yana ƙayyade zafin ƙafewa (ƙasa da wurin tafasa, ƙasa da zafin sanyaya).
②Matsi mai narkewa:Mafi girman matsin lamba, mafi girman nauyin damfara (yana shafar amfani da makamashi da hayaniya).
③Maida wutar lantarki:Mafi girman ƙarfin wutar lantarki, haka nan saurin sanyaya yake da sauri.
Dole ne ku san manyan nau'ikan guda 4 na ingancin sanyaya firiji:
1.R600a (isobutane, injin sanyaya hydrocarbon)
(1)Kare Muhalli: GWP (Ƙarfin Dumama Duniya) ≈ 0, ODP (Ƙarfin Lalacewar Ozone) = 0, bisa ga ƙa'idodin Tarayyar Turai F – Gas.
(2)Ingancin firiji: wurin tafasa - 11.7 °C, ya dace da buƙatun ɗakin firiji na gida (-18 °C), ƙarfin sanyaya naúrar ya fi R134a girma da kusan kashi 30%, canjin matsa lamba kaɗan ne, kuma yawan amfani da makamashi ƙasa ne.
(3)Bayanin shari'aFiriji mai ƙarfin lita 190 yana amfani da R600a, tare da amfani da wutar lantarki a kowace rana na digiri 0.39 (matakin ingancin makamashi na 1).
2.R134a (tetrafluoroethane)
(1)Kare Muhalli: GWP = 1300, ODP = 0, Tarayyar Turai za ta haramta amfani da sabbin kayan aiki daga shekarar 2020.
(2)Ingancin firiji: wurin tafasa - 26.5 °C, ƙarancin aikin zafin jiki ya fi R600a kyau, amma ƙarfin sanyaya na'urar yana da ƙasa, yana buƙatar babban matsewar motsi.
(3) Matsin na'urar sanyaya iska ya fi na R600a da kashi 50%, kuma yawan amfani da makamashin damfara yana ƙaruwa.
3.R32 (difluoromethane)
(1)Kare Muhalli: GWP = 675, wanda shine 1/2 na R134a, amma yana iya kamawa da wuta (don hana haɗarin zubewa).
(2)Ingancin firiji: wurin tafasa - 51.7 °C, ya dace da na'urorin sanyaya iska na inverter, amma matsin lamba na danshi a cikin firiji ya yi yawa (ya ninka R600a sau biyu), wanda zai iya haifar da yawan danshi cikin sauƙi.
4.R290 (propane, hydrocarbon refrigerant)
(1)Amincin muhalli: GWP ≈ 0, ODP = 0, shine zaɓi na farko na "mai sanyaya iska a nan gaba" a Tarayyar Turai.
(2)Ingancin firiji: wurin tafasa - 42 °C, ƙarfin sanyaya naúrar ya fi R600a 40%, ya dace da manyan injinan daskarewa na kasuwanci.
Hankali:Ana buƙatar a rufe firiji na gida sosai saboda yadda wuta ke ci (wurin ƙonewa 470 °C) (farashi ya ƙaru da kashi 15%).
Ta yaya na'urar sanyaya sanyi ke shafar hayaniyar firiji?
Hayaniyar firiji galibi tana fitowa ne daga girgizar matsewa da kuma hayaniyar kwararar firiji. Halayen firiji suna shafar hayaniya ta hanyoyi kamar haka:
(1) Aikin matsi mai yawa (matsin matsi 2.5MPa), matsi yana buƙatar aiki mai yawa, hayaniyar na iya kaiwa 42dB (firiji na yau da kullun kusan 38dB), aikin matsi mai ƙasa (matsin matsi 0.8MPa), nauyin matsi yana ƙasa, hayaniyar tana ƙasa da 36dB.
(2) R134a yana da yawan danko (0.25mPa · s), kuma yana iya kamuwa da hayaniya mai ƙarfi (kamar sautin "shiss") lokacin da yake gudana ta cikin bututun capillary. R600a yana da ƙarancin danko (0.11mPa · s), kwarara mai santsi, da kuma raguwar hayaniya da kusan 2dB.
Lura: Firiji na R290 yana buƙatar ƙara ƙirar fashewa - mai hana fashewa (kamar kauri mai kumfa), amma yana iya sa akwatin ya yi ƙara kuma hayaniya ta tashi da 1 - 2dB.
Yadda ake zaɓar nau'in firiji mai sanyi?
R600a yana da ƙarancin hayaniya don amfani a gida, farashin ya kai kashi 5% na jimlar farashin firiji, R290 yana da kariyar muhalli mai yawa, ya cika ƙa'idodin Tarayyar Turai, farashin ya fi R600a tsada da kashi 20%, R134a ya dace, ya dace da tsoffin firiji, R32 bai cika ba, zaɓi a hankali!
Firji shine "jini" na firiji, kuma nau'insa yana shafar amfani da makamashi, hayaniya, aminci da rayuwar sabis kai tsaye. Ga masu amfani da shi na yau da kullun, R600a shine mafi kyawun zaɓi don cikakken aiki na yanzu, kuma ana iya la'akari da R290 don neman kariyar muhalli mai tsanani. Lokacin siye, zaku iya tabbatar da nau'in firiji ta hanyar tambarin suna a bayan firiji (kamar "Refrigerant: R600a") don gujewa ruɗewa ta hanyar ra'ayoyin talla kamar "juyawa akai-akai" da "babu sanyi".
Lokacin Saƙo: Maris-26-2025 Dubawa: