Sekuseduze ukuthi kutholwe ezinye iziqandisi zesizukulwane sesibili nesesithathu!
Ngomhla ziyi-15 kuMandulo 2021, "Ukuchitshiyelwa Kwesichibiyelo Sase-Kigali Sephrothokholi YaseMontreal Ezintweni Ezicekela Ungqimba Lwe-ozone" saqala ukusebenza e-China.Ngokwe-"Montreal Protocol", i-HCFC yesiqandisi sesizukulwane sesibili izoyeka ukusetshenziswa ngo-2030. Lesi sichibiyelo sidinga ukuthi ngo-2050, ukusetshenziswa kwe-HFCs emhlabeni wonke kuzokwehla cishe ngama-85%.
Lesi isenzakalo esiyingqopha-mlando ohlelweni lokuqeda esiqandisini, futhi siphinde sithumele uphawu olukhulu lwezepolitiki lokuthi umphakathi wamazwe omhlaba uzimisele ukuqeda ukusetshenziswa kwama-HFC.
Ngesikhathi esifanayo, ngokusungulwa kwethagethi yasekhaya "ye-dual-carbon" kanye nokuqaliswa kancane kancane kwenqubomgomo yokulawula i-HFCs yesiqandisi sesizukulwane sesithathu, kuyaphuthuma ukutadisha i-HCFC, izinto ezithatha indawo ye-HFC kanye nobuchwepheshe obuhlobene.
Isiqandisi singena enkathini yenani eliphansi le-GWP, futhi inkinga yokuvutha ayikwazi ukushaywa indiva!
Ngokuvamile, ukusetshenziswa kweziqandisi ezivuthayo ezinamavelu e-GWP aphansi esikhundleni se-HCFC namanye amagesi aqukethe i-fluorine kuthathwa njengesixazululo esisebenzayo nesiphansi.Nokho, ucwaningo luye lwabonisa ukuthi iziqandisi zendabuko azivamile ukuhlangabezana nazo zonke izidingo zeziqandisi zesikhathi esizayo ze-GWP ephansi, ukuphepha, ukusebenza kwe-thermodynamic nokusebenza kwemvelo ngesikhathi esifanayo.
Ngamanye amazwi, amanani amaningi aphansi e-GWP ayasha!
Izinga kazwelonke "Indlela Yokubala Ngezinombolo Eziyisiqandisi Nokuhlelwa Kokuphepha" GB/T 7778-2017 ihlukanisa ubuthi beziqandisi zibe Ikilasi A (ubuthi obuphansi obungamahlalakhona) kanye Nesigaba B (ubuthi obungapheli obuphezulu), futhi ukuvutha kuhlukaniswa ku-Class 1 ( Akukho ukusakazeka kwelangabi ), Ikilasi 2L (ngokubuthakathaka okunokwenzeka), Ikilasi 2 (kungenzeka), kanye Nekilasi 3 (elinokusha nokuqhuma).Ngokusho kwe-GB/T 7778-2017, ukuphepha kweziqandisi kuhlukaniswe izigaba eziyi-8, okungukuthi: A1, A2L, A2, A3, B1, B2L, B2, kanye ne-B3.Phakathi kwazo, i-A1 iphephe kakhulu futhi i-B3 iyingozi kakhulu.
Ungasisebenzisa kanjani isiqandisi se-A2L HFO ngokuphepha nangempumelelo?
Nakuba ama-air conditioner asendlini, ama-air conditioners aphakathi kanye nezinye izinto zokuqandisa zihlolwe ukusebenza embonini, inani lereferensi yenkokhelo yesiqandisi liyaboniswa.Kodwa-ke, amayunithi amaningi amakhulu okupholisa umoya amaphakathi nendawo yokupholisa umoya ezimbonini kudingeka agcwaliswe ngesiqandisi endaweni, njengoba kwenza ama-air-conditioner asendlini, izinto zesiqandisi, indawo ebandayo, njll. phakathi nenqubo yokulungisa.
Ngaphezu kwalokho, ngenxa yezinhlobo ezahlukene zama-evaporator asetshenziswa kwezinye izinto zokusebenza, ukushaja kwesiqandisi kuhlukile.Ngaphezu kwendawo yokulungisa nokufaka, ngenxa yezimo ezilinganiselwe, izisebenzi eziningi ezilungisayo zikhokhisa isiqandisi ngokusekelwe kokuhlangenwe nakho.Ngaphezu kwalokho, imboni nayo izwela kakhulu endabeni yokuvutha kwesiqandisi.
Ngokusekelwe kulokhu, i-Chemours yethule i-R1234yf, i-R454A, i-R454B, i-R454C nezinye i-A2L evutha kalula, iziqandisi eziphansi ze-GWP, futhi izibophezele ekukhuthazeni ukuklanywa kwesistimu nokuqeqeshwa kwesayensi okudumile ukuze kuxazululwe izingozi zokuvutha.
Izinga lokuphepha le-A2L linezimfanelo zobuthi obuphansi (A) kanye nokuvutha okubuthakathaka (2L).Iziqandisi eziningi ze-A2L HFO zinokusebenza okuphezulu kanye nezici ze-GWP eziphansi, futhi zithatha indawo ekahle yesizukulwane sangaphambilini seziqandisi ze-HFC.Imikhiqizo ye-A2L ayisetshenziswa kabanzi emakethe yamazwe ngamazwe kuphela, kodwa izinkampani eziningi zasekhaya nazo ziye zasheshisa ijubane lokuthuthukisa kanye nokwethula lolu hlobo olusha lwesiqandisi ezinhlelweni zokukhiqiza.Isibonelo, i-Johnson Controls isebenzisa i-Oteon™ XL41 (R-454B) ku-York ® YLAA scroll chiller yayo yemakethe yaseYurophu;Inkampani yenethiwekhi iphinde ikhethe i-R-454B (okungukuthi Njengesiqandisi sayo esiyinhloko esine-GWP ephansi, Inkampani Yenethiwekhi izosebenzisa i-R-454B endaweni yayo yokuhlala eneshubhu kanye nemikhiqizo yokuthengisa elula ye-HVAC ethengiswa eNyakatho Melika kusukela ngo-2023. Miselela i-R-410A.
Isikhathi sokuthumela: Oct-23-2021