Kokoke mai ka loaʻa ʻana o nā mea pani no ka lua a me ke kolu o ka hanauna refrigerants!
Ma Sepatemaba 15, 2021, ka "Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer" i hoʻomaka i ka mana no Kina. Wahi a ka "Montreal Protocol", e pau ka hoʻohana ʻana o ka HCFC i ka lua o ka hoʻohana ʻana ma 2030. Pono ka hoʻololi e hiki i ka makahiki 2050, e hāʻule ka hoʻohana ʻana o ka HFC honua ma kahi o 85%.
He hanana koʻikoʻi kēia ma ke kaʻina hana hoʻopau refrigerant, a hoʻouna pū aku i kahi hōʻailona politika nui e hoʻoholo nei ke kaiāulu o ka honua e hoʻopau i ka hoʻohana ʻana i nā HFC.
I ka manawa like, me ka hoʻokumu ʻana i ka pahuhopu "ʻelua-carbon" home a me ka hoʻokō lohi ʻana i ke kulekele hoʻomalu HFCs refrigerant kolu o ka hanauna, pono e aʻo i ka HCFC, HFCs mea pani a me nā ʻenehana pili.
Hoʻokomo ka pahu hau i ke au o ka waiwai haʻahaʻa GWP, a ʻaʻole hiki ke mālama ʻia ka pilikia flammability!
ʻO ka ʻōlelo maʻamau, ʻo ka hoʻohana ʻana i nā mea hoʻoheheʻe flammable me nā waiwai GWP haʻahaʻa e pani i ka HCFC a me nā kinoea fluorine ʻē aʻe i manaʻo ʻia he hopena kūpono a haʻahaʻa. Eia nō naʻe, ua hōʻike ʻia nā haʻawina ʻaʻole hiki i nā mea hoʻoheheʻe kuʻuna ke hoʻokō i nā koi āpau o ka wā e hiki mai ana no ka GWP haʻahaʻa, ka palekana, ka hana thermodynamic a me ka hana kaiapuni i ka manawa like.
I nā huaʻōlelo ʻē aʻe, he nui nā waiwai GWP haʻahaʻa i hoʻopau ʻia!
ʻO ka maʻamau "Refrigerant Numbering Method and Safety Classification" GB / T 7778-2017 e puʻunaue i ka toxicity o nā refrigerants i loko o ka papa A (haʻahaʻa haʻahaʻa toxicity) a me ka papa B (kiʻekiʻe mau loa toxicity), a ua hoʻokaʻawale ʻia ka flammability i ka papa 1 (ʻaʻohe hoʻolaha ahi), papa 2L (hiki i ka nāwaliwali), papa a me 2 (hiki i ka hiki ke hoʻopaʻa ʻia). Wahi a GB / T 7778-2017, ua māhele ʻia ka palekana o nā mea hoʻoheheʻe i 8 mau ʻāpana, ʻo ia hoʻi: A1, A2L, A2, A3, B1, B2L, B2, a me B3. Ma waena o lākou, ʻo A1 ka mea palekana a ʻo B3 ka mea weliweli loa.
Pehea e hoʻohana ai i ka refrigerant A2L HFO me ka palekana a me ka maikaʻi?
ʻOiai ua hoʻāʻo ʻia nā ea ea hale, nā ea kikowaena a me nā mea hoʻonaninani ʻē aʻe no ka hana ma ka hale hana, ua hōʻike ʻia ka waiwai kuhikuhi o ka uku refrigerant. Eia nō naʻe, pono e hoʻopiha ʻia ka nui o nā kikowaena ea kikowaena nui a me nā chillers ʻoihana me ka refrigerant ma ka pūnaewele, e like me nā ea air-conditions hale, nā lako pahu hau, ka mālama anu, a me nā mea ʻē aʻe i ka wā o ka mālama ʻana.
Eia kekahi, ma muli o nā ʻano like ʻole o nā evaporator i hoʻohana ʻia i kekahi mau mea hana, ʻokoʻa ka uku o ka refrigerant. Ma waho aʻe o ka mālama ʻana a me ka hoʻonohonoho ʻana, ma muli o nā kūlana liʻiliʻi, nui nā limahana mālama e uku i ka refrigerant ma muli o ka ʻike. Eia kekahi, pili loa ka ʻoihana i ka pilikia o ka flammability refrigerant.
Ma muli o kēia, ua hoʻokumu ʻo Chemours iā R1234yf, R454A, R454B, R454C a me nā mea hoʻonāwaliwali ʻē aʻe o ka A2L, haʻahaʻa GWP refrigerants, a ua kūpaʻa ʻo ia i ka hoʻolaha ʻana i ka hoʻolālā ʻōnaehana a me ka hoʻomaʻamaʻa ʻepekema kaulana e hoʻoponopono i nā pilikia hiki ke ahi.
Loaʻa i ka pae palekana A2L nā hiʻohiʻona o ka haʻahaʻa haʻahaʻa (A) a me ka palupalu palupalu (2L). Nui nā mea hoʻoheheʻe A2L HFO i loaʻa nā hiʻohiʻona kiʻekiʻe a me nā hiʻohiʻona GWP haʻahaʻa, a he mau pani kūpono no ka hanauna mua o nā mea hoʻoheheʻe HFC. ʻAʻole hoʻohana nui ʻia nā huahana A2L i ka mākeke honua, akā nui nā hui kūloko i hoʻolalelale i ka wikiwiki o ka hoʻomaikaʻi ʻana a me ka hoʻokomo ʻana i kēia ʻano hou o ka refrigerant i nā noi hana. No ka laʻana, hoʻohana ʻo Johnson Controls i ka Oteon™ XL41 (R-454B) i kāna pahu chiller ʻo York ® YLAA no ka mākeke ʻEulopa; Koho pū ka mea lawe iā R-454B (ʻo ia hoʻi, ʻo ia ka mea hoʻoheheʻe haʻahaʻa haʻahaʻa haʻahaʻa, e hoʻohana ʻo Carrier iā R-454B i kāna mau hale kūʻai kūʻai a me nā huahana HVAC kūʻai māmā i kūʻai ʻia ma ʻAmelika ʻĀkau mai 2023. Hoʻololi iā R-410A.
Ka manawa hoʻouna: Oct-23-2021