Zvava pedyo kuwana zvinotsiva mafiriji echizvarwa chechipiri nechechitatu!
Musi wa15 Gunyana, 2021, "Kigali Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer" yakatanga kushanda kuChina. Sekureva kwe "Montreal Protocol", refrigerant refrigerant HCFC yechizvarwa chechipiri icharega kushandiswa muna 2030. Kugadziriswa uku kunoda kuti panosvika 2050, kushandiswa kweHFC pasi rose kudzikire ne85%.
Ichi chiitiko chakakosha mukugadzirisa kudzima kwemvura mufiriji, uye chinopawo chiratidzo chikuru chezvematongerwo enyika chekuti nharaunda yepasi rose yakatsunga kubvisa kushandiswa kweHFCs.
Panguva imwe chete, nekugadzwa kwechinangwa che "dual-carbon" chemuno uye kushandiswa zvishoma nezvishoma kwemutemo wekudzora HFCs dzechizvarwa chechitatu, zvakakosha kuti tidzidze nezveHCFC, zvinhu zvinotsiva HFCs uye matekinoroji ane hukama nazvo.
Refrigerant inopinda munguva yeGWP yakaderera, uye dambudziko rekuti moto haugone kufuratirwa!
Kazhinji, kushandiswa kwemafiriji anobvira moto ane GWP shoma kutsiva HCFC nemamwe magasi ane fluorine kunoonekwa semhinduro inoshanda uye inodhura zvishoma. Zvisinei, zvidzidzo zvakaratidza kuti mafiriji echinyakare haawanzo sangana nezvinodiwa zvemafiriji emangwana eGWP shoma, kuchengetedzeka, kushanda kwethermodynamic uye kushanda kwezvakatipoteredza panguva imwe chete.
Nemamwe mashoko, akawanda ma GWP values akaderera anogona kutsva!
Muyero wenyika wekuti "Refrigerant Numbering Method and Safety Classification" GB/T 7778-2017 unopatsanura chepfu yerefrigerants muClass A (chepfu yakaderera yenguva refu) neClass B (chepfu yakanyanya yenguva refu), uye kutsva kwakakamurwa muClass 1 (Hapana kupararira kwemurazvo), Kirasi 2L (zvinogoneka zvishoma), Kirasi 2 (zvinogoneka), uye Kirasi 3 (zvinobvira uye zvinoputika). Sekureva kweGB/T 7778-2017, kuchengetedzeka kwerefrigerants kwakakamurwa muzvikamu zvisere, zvinoti: A1, A2L, A2, A3, B1, B2L, B2, uye B3. Pakati pazvo, A1 ndiyo yakachengeteka uye B3 ndiyo ine njodzi zvikuru.
Ungashandisa sei firiji yeA2L HFO zvakachengeteka uye zvinobudirira?
Kunyangwe ma air conditioner epamba, ma air conditioner epakati nemimwe michina yekutonhodza yakaedzwa kuti ione kana ichishanda zvakanaka pafekitori, kukosha kwe refirizant kuchaja kwakaratidzwa. Zvisinei, mayuniti mazhinji makuru ekutonhodza epakati nema industrial chillers anofanira kuzadzwa ne refrigerant panzvimbo yacho, sezvinoita ma air conditioner epamba, mafiriji, nzvimbo inotonhorera, nezvimwewo panguva yekugadzirisa.
Uyezve, nekuda kwemhando dzakasiyana dzema evaporator anoshandiswa mune mimwe michina, muripo we refrigerant wakasiyana. Pamusoro penzvimbo yekugadzirisa nekuisa, nekuda kwemamiriro mashoma, vashandi vazhinji vekugadzirisa vanobhadharisa refrigerant zvichibva pane zvavakaona. Pamusoro pezvo, indasitiri iyi inonyanya kunetseka nenyaya yekubvira kwe refrigerant.
Zvichibva pane izvi, Chemours yakatanga R1234yf, R454A, R454B, R454C nedzimwe A2L dzisingabatike zvakanyanya, mafiriji eGWP asina simba, uye yakazvipira kukurudzira dhizaini yemasisitimu uye kudzidziswa kwesainzi kwakakurumbira kugadzirisa njodzi dzekuti moto upfute.
Kuchengetedzwa kweA2L kune hunhu hwekuti ine chepfu shoma (A) uye haibatike zvakanyanya (2L). Mafiriji mazhinji eA2L HFO ane hunhu hwepamusoro uye husina GWP, uye akakodzera kutsiva chizvarwa chekare cheHFC refrigerants. Zvigadzirwa zveA2L hazvingoshandiswi zvakanyanya mumusika wepasi rose, asi makambani mazhinji emuno akakurumidzisawo kumhanya kwekuvandudza uye kuisa rudzi urwu rutsva rwerefrigerant mumashandisirwo ekugadzira. Semuenzaniso, Johnson Controls inoshandisa Oteon™ XL41 (R-454B) muYork ® YLAA scroll chiller yayo yemusika weEurope; Carrier inosarudzawo R-454B (ndiko kuti, Semufiriji wayo mukuru weGWP wakaderera, Carrier ichashandisa R-454B muzvigadzirwa zvayo zveHVAC zvekugara uye zvekutengesa zviri nyore zvinotengeswa kuNorth America kubva muna 2023. Tsiva R-410A.
Nguva yekutumira: Gumiguru-23-2021