Tub yees, kuj tseem hu ua lub teb tub yees, yog cov tshuaj ua haujlwm hauv cov pa tawm hauv tub yees. Tam sim no, muaj ntau tshaj 80 hom tshuaj uas tuaj yeem siv ua cov tub yees. Cov tub yees uas feem ntau yog Freon (suav nrog: R22A, R40A, thiab lwm yam), cov pa roj carbon monoxide (H2O), cov pa roj carbon monoxide (H2O)
Qhov ntsuas ntsuas ntawm cov tub yees ntawm thaj chaw thoob ntiaj teb muaj xws li: ozone depletion muaj peev xwm (ODP) thiab ntiaj teb sov peev xwm (GWP); Ntxiv nrog rau qhov cuam tshuam rau ib puag ncig, yuav tsum muaj kev nyab xeeb uas muaj kev tiv thaiv tib neeg lub neej thiab cov cuab yeej.
Odp ozone depletion muaj peev xwm: qhia tias muaj peev xwm ntawm Chlorofluorocarbons hauv cov huab cua los rhuav tshem txheej ozone txheej. Tus me dua tus nqi, qhov zoo dua ib puag ncig cov yam ntxwv ntawm cov tub yees. Cov tub yees nrog ODP qhov tseem ceeb tsawg dua los yog sib npaug rau 0.05 yog suav tias yog siv tau raws li qib tam sim no.
GWP Ntiaj Teb Sov Sov Muaj Peev Xwm: Qhov taw qhia txog kev nyab xeeb ntawm kev nyab xeeb roj emissions, qhia txog qhov ua tau zoo ntawm CO2 nrog tib cov nyhuv, CO2 lub GWP = 1.0. Feem ntau xam GWP raws 100 xyoo, denoted li GWP100, "Montreal raws cai" thiab "Kyoto raws tu qauv" ob leeg siv GWP100.
1. Kev faib tawm ntawm cov tub yees
According to GB/T 7778-2017, refrigerant safety is subdivided into 8 categories, namely: A1, A2L, A2, A3, B1, B2L, B2, B3, among which A1 is the safest and B3 is the most dangerous.
Cov qib kev nyab xeeb ntawm cov tub yees uas ib txwm muaj raws li nram no:
Ntaus A1: R12: R12, R13, R113, R123, R201B, R40, R40, R404B, R403b, R404A, R407A, R407C, R407C, R407D, R40, R502A, R507A, R508B, R509a, R513A, R744
Ntaus A2: R142B, R13A, R406A, R411A, R411A, R412A, R415B, R418A, R512A
A2L Qeb: R143A, R32, R1234YF, R1234Ze (e)
Chav Kawm A3: R290, R600, R600A, R600A, R1270, R1270, R510A, R511A
Qeb B1: R123, R245FA
B2L Qeb: R717
Raws li txoj kev evaporation ts ntawm cov tub yees hauv cov qauv siab (100kpa), nws tuaj yeem faib ua: txias txias tub yees, thiab tsawg-taws txias.
Tsawg-siab siab-kub-kub cov tub yees txias: Qhov cua sov sov yog siab dua 0 ° C, thiab cov hws khov yog qis dua 29.41305 × 104pa. Cov tub yees no haum rau siv nyob rau hauv centrifugal tub yees compressors hauv tshuab cua txias.
Nruab nrab-siab nruab nrab-qhov kub-txias: Nruab nrab nruab nrab-txias: evaporation kub -50 1 ° siab (196.113 ~ 29.41PA. Hom rau ntawm cov tub yees no feem ntau yog siv nyob rau hauv tib neeg ib feem-theem compression thiab ob-theem compression piston rewration systems.
Kev siab siab thiab tsawg-kub cov tub yees: kev kub siab thiab qis-kub thiab qis dua: qhov kev ua kom zoo dua -50 ° C, thiab cov hws khov yog siab dua 196.133 × 104pa. Cov tub yees no haum rau qhov tsawg-qhov kub ntawm cov tub yees tub yees lossis cov khoom siv kub tsawg dua hauv qab -70 ° C.
Lub Sijhawm Post: Dec-28-2022
