Tikuyembekezera kupeza zinthu zina zoti zilowe m'malo mwa ma refrigerant a m'badwo wachiwiri ndi wachitatu!
Pa Seputembala 15, 2021, "Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer" idayamba kugwira ntchito ku China. Malinga ndi "Montreal Protocol", HCFC ya m'badwo wachiwiri ya refrigerant idzasiya kugwiritsidwa ntchito mu 2030. Kusinthaku kumafuna kuti pofika chaka cha 2050, kugwiritsa ntchito HFC padziko lonse lapansi kuchepe ndi pafupifupi 85%.
Ichi ndi chochitika chofunika kwambiri pa ndondomeko yochotsera mpweya wozizira m'firiji, ndipo chikuwonetsanso kuti anthu padziko lonse lapansi atsimikiza mtima kuthetsa kugwiritsa ntchito ma HFC.
Nthawi yomweyo, ndi kukhazikitsidwa kwa cholinga cha "dual-carbon" chapakhomo komanso kukhazikitsa pang'onopang'ono mfundo zoyendetsera ma HFC a m'badwo wachitatu, ndikofunikira kuphunzira za HCFC, zinthu zolowa m'malo mwa HFC ndi ukadaulo wofanana nawo.
Refrigerant yalowa mu nthawi ya GWP yochepa, ndipo vuto la kuyaka silinganyalanyazidwe!
Kawirikawiri, kugwiritsa ntchito mafiriji oyaka omwe ali ndi GWP yotsika m'malo mwa HCFC ndi mpweya wina wokhala ndi fluorine kumaonedwa kuti ndi njira yothandiza komanso yotsika mtengo. Komabe, kafukufuku wasonyeza kuti mafiriji achikhalidwe nthawi zambiri sakwaniritsa zofunikira zonse za mafiriji amtsogolo kuti achepetse GWP, chitetezo, magwiridwe antchito a thermodynamic komanso magwiridwe antchito achilengedwe nthawi imodzi.
Mwa kuyankhula kwina, mitengo yambiri yotsika ya GWP imatha kuyaka!
Muyezo wa dziko lonse wa "Refrigerant Numbering Method and Safety Classification" GB/T 7778-2017 umagawa poizoni wa mafiriji m'magulu A (poizoni wochepa kwambiri) ndi Gulu B (poizoni wochuluka kwambiri), ndipo kuyaka kumagawidwa m'magulu 1 (Palibe kufalikira kwa moto), Gulu 2L (kochepa), Gulu 2 (kotheka), ndi Gulu 3 (yoyaka komanso yophulika). Malinga ndi GB/T 7778-2017, chitetezo cha mafiriji chimagawidwa m'magulu 8, omwe ndi: A1, A2L, A2, A3, B1, B2L, B2, ndi B3. Pakati pawo, A1 ndiye otetezeka kwambiri ndipo B3 ndiye yoopsa kwambiri.
Kodi mungagwiritse ntchito bwanji firiji ya A2L HFO mosamala komanso moyenera?
Ngakhale kuti ma air conditioner apakhomo, ma air conditioner apakati ndi zida zina zoziziritsira zayesedwa kuti zigwire ntchito bwino pafakitale, mtengo woyerekeza wa refrigerant chaji wasonyezedwa. Komabe, mayunitsi ambiri akuluakulu oziziritsira mpweya ndi ma cooler a mafakitale amafunika kudzazidwa ndi refrigerant pamalopo, monganso ma air conditioner apakhomo, zida za firiji, malo osungiramo ozizira, ndi zina zotero panthawi yokonza.
Komanso, chifukwa cha mitundu yosiyanasiyana ya ma evaporator omwe amagwiritsidwa ntchito mu zida zina, mphamvu ya refrigerant ndi yosiyana. Kuwonjezera pa malo okonzera ndi kukhazikitsa, chifukwa cha mikhalidwe yochepa, ogwira ntchito ambiri okonza amalipiritsa refrigerant kutengera zomwe akumana nazo. Kuphatikiza apo, makampaniwa amakhudzidwanso kwambiri ndi nkhani ya kutentha kwa refrigerant.
Kutengera izi, Chemours yatulutsa R1234yf, R454A, R454B, R454C ndi ma refrigerant ena a A2L omwe amayaka pang'ono, otsika GWP, ndipo yadzipereka kupititsa patsogolo kapangidwe ka makina ndi maphunziro otchuka a sayansi kuti athetse mavuto omwe angayake.
Mulingo wa chitetezo cha A2L uli ndi zizindikiro za poizoni wochepa (A) komanso kuyaka pang'ono (2L). Mafiriji ambiri a A2L HFO ali ndi magwiridwe antchito apamwamba komanso otsika a GWP, ndipo ndi olowa m'malo mwa mibadwo yakale ya mafiriji a HFC. Zogulitsa za A2L sizimangogwiritsidwa ntchito kwambiri pamsika wapadziko lonse lapansi, komanso makampani ambiri am'nyumba nawonso afulumizitsa liwiro la kukweza ndikuyambitsa mtundu watsopano wa refrigerant mu ntchito zopangira. Mwachitsanzo, Johnson Controls imagwiritsa ntchito Oteon™ XL41 (R-454B) mu York ® YLAA scroll chiller yake pamsika waku Europe; Carrier imasankhanso R-454B (ndiko kuti, Monga refrigerant yake yayikulu yotsika ya GWP, Carrier idzagwiritsa ntchito R-454B muzinthu zake zopepuka za HVAC zogulitsa ku North America kuyambira 2023. Sinthani R-410A.
Nthawi yotumizira: Okutobala-23-2021