Difluoromethane-1 Yapamwamba Kwambiri Yogulitsa
Chidule cha Zamalonda
Dzina la Mankhwala: Difluoromethane
Nambala ya CAS: 75-10-5
Fomula ya Molekyulu: CH₂F₂
Kulemera kwa Mamolekyulu: 52.02 g/mol
Dzina Lodziwika: R-32 (monga firiji)
Difluoromethane (R-32) ndi hydrofluorocarbon (HFC) yopanda utoto, yopanda poizoni, komanso yoyaka pang'ono yokhala ndi mphamvu yabwino kwambiri yotentha. Monga refrigerant yochokera ku mbadwo wotsatira, yakhala njira ina yofunika kwambiri m'malo mwa refrigerant yachikhalidwe ya high-GWP (Global Warming Potential), yodziwika bwino chifukwa cha magwiridwe ake abwino, chitetezo, komanso kusamala chilengedwe.
Katundu Wofunika
| Katundu | Kufotokozera | Ubwino |
| Malo Owira (pa 1 atm) | -51.6°C (-60.9°F) | Zimathandiza kusamutsa kutentha bwino pa kutentha kochepa |
| GWP (Kuthekera kwa Kutentha kwa Dziko Lonse, Zaka 100) | 675 | Kutsika kwambiri kuposa R - 410A (GWP = 2088) ndi R - 22 (GWP = 1810), zomwe zimachepetsa kuchuluka kwa mpweya woipa. |
| ODP (Kutha kwa Ozone) | 0 | Kusawononga konse kwa ozone layer, mogwirizana ndi malamulo apadziko lonse lapansi okhudza zachilengedwe (monga Montreal Protocol) |
| Kutentha Kovuta Kwambiri | 78.1°C (172.6°F) | Yoyenera makina oziziritsira mpweya ndi makina opopera kutentha omwe amagwira ntchito m'malo otentha pang'ono mpaka okwera kwambiri. |
| Kuyaka | Yoyaka pang'ono (gulu la A2L pa ASHRAE 34) | Zotetezeka pa ntchito zambiri zogona ndi zamalonda zokhala ndi kapangidwe koyenera |
| Kutentha kwa Matenthedwe | Wapamwamba (wabwino kuposa R - 410A) | Zimathandizira kuziziritsa/kutenthetsa bwino, kuchepetsa kugwiritsa ntchito mphamvu kwa zida |
Mapulogalamu Odziwika
R-32 imagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana a mafakitale ndi ogula chifukwa cha magwiridwe ake abwino komanso ubwino wake pa chilengedwe:
Mpweya Woziziritsa M'nyumba ndi Mabizinesi: Monga firiji yayikulu ya mayunitsi a AC ogawanika, ma AC a mawindo, ndi makina a VRV (Variable Refrigerant Volume). Imalowa m'malo mwa R-410A m'zida zatsopano, kuchepetsa kugwiritsa ntchito mphamvu ndi 10-15%.
Mapampu Otenthetsera: Abwino kwambiri pa mapampu otenthetsera ochokera ku mpweya (ASHPs) ndi mapampu otenthetsera ochokera ku madzi (WSHPs), omwe amapereka mphamvu yotenthetsera yokhazikika ngakhale kutentha kotsika (-10°C mpaka 5°C).
Machitidwe Oziziritsira: Amagwiritsidwa ntchito m'mafiriji ang'onoang'ono mpaka apakatikati, m'mabokosi owonetsera, komanso m'malo osungiramo zinthu zozizira, kuonetsetsa kuti kuziziritsa bwino komanso kopanda kuwononga chilengedwe.
Zinthu Zopangira Thovu: Mu mafakitale ena, R-32 imagwira ntchito ngati chinthu chopangira thovu lolimba la polyurethane, zomwe zimapangitsa kuti thovu likhale lolimba.
Kupanga Zachilengedwe: Kumagwiritsidwa ntchito ngati zinthu zopangira mankhwala okhala ndi fluorine, kuphatikizapo mankhwala ndi ma polima apadera.
Chitetezo ndi Kutsatira Malamulo
Malangizo a Chitetezo
Kugwira: Pewani kukhudzana mwachindunji ndi khungu/maso; gwiritsani ntchito magolovesi oteteza, magalasi a maso, ndi zida zopumira m'malo opanda mpweya wabwino.
Kusunga: Sungani pamalo ozizira, ouma, komanso opumira bwino kutali ndi malawi otseguka, kutentha kwambiri, ndi zinthu zopangitsa kuti zinthu ziume. Gwiritsani ntchito zotengera zotsekedwa, zosapsa ndi dzimbiri (monga ma silinda achitsulo kapena aluminiyamu).
Mayendedwe: Tsatirani malamulo a UN okhudza kunyamula ma refrigerant (nambala ya UN: 3252); onetsetsani kuti ma silinda ali otetezedwa bwino komanso olembedwa.
Kutsatira Malamulo
Imakwaniritsa miyezo ya ASHRAE 34 (gulu la chitetezo cha A2L).
Mogwirizana ndi EU F-Gas Regulation (Regulation (EU) 2014/512), kuchepetsa kutulutsa mpweya wa F-gas ndikulimbikitsa njira zina zotsika mtengo za GWP.
Yavomerezedwa ndi opanga zida zazikulu (monga Daikin, Mitsubishi Electric, Gree) kuti igwiritsidwe ntchito mu mitundu yawo yaposachedwa ya AC ndi heaty pump.
Mfundo Zazikulu za Technical Data Sheet (TDS)
| Chizindikiro | Mtengo | Njira Yoyesera |
| Chiyero (mphindi) | 99.9% | GC (Gas Chromatography) |
| Chinyezi (chosapitirira muyeso) | 10 ppm | Karl Fischer Titration |
| Kuchuluka kwa asidi (kuchuluka) | 0.1 ppm | Kugawa kwa Titration |
| Zotsalira Zosasinthasintha (zosatha) | 10 mg/kg | Gravimetry |
| Kupanikizika kwa nthunzi (pa 25°C) | 1.72 MPa | Kuyeza kwa Kupanikizika |
N’chifukwa Chiyani Tiyenera Kusankha Difluoromethane Yathu (R-32)?
Kuyera Kwambiri: Kuyera kosalekeza kwa 99.9% kumatsimikizira magwiridwe antchito okhazikika komanso moyo wautali wa ntchito.
Zosamalira Zachilengedwe: GWP Yochepa (675) imathandizira zolinga zapadziko lonse zosakhudzana ndi mpweya wa carbon ndipo imakwaniritsa malamulo okhwima okhudza chilengedwe.
Yotsika Mtengo: Kugwiritsa ntchito bwino kutentha kwambiri kumachepetsa ndalama zamagetsi kwa ogwiritsa ntchito, pomwe mphamvu zathu zogulira zambiri zimachepetsa ndalama zogulira.
Thandizo Padziko Lonse: Timapereka upangiri waukadaulo, maphunziro achitetezo, komanso kutumiza makasitomala nthawi yake kwa makasitomala padziko lonse lapansi, ndi ziphaso kuphatikizapo ISO 9001 ndi REACH.
Lumikizanani nafe
Kuti mudziwe mitengo, zitsanzo, kapena zikalata zonse za TDS/COA, funsani gulu lathu logulitsa:
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