Molao-motheo oa sehatsetsing oa sehatsetsing o itšetlehile ka potoloho ea Carnot, eo ho eona sehatsetsi e leng setsi sa mantlha, 'me mocheso ka sehatsetsing o isoa ka ntle ka mohato oa phetoho ea mouoane endothermic - condensation exothermic.
Lintlha tsa bohlokoa:
①Sebaka se belang:E etsa qeto ea mocheso oa mouoane (ho theola ntlha e belang, ho theola mocheso oa sehatsetsing).
②Ho fokotsa khatello:Ha khatello e phahame, mojaro o moholo oa compressor (e amang tšebeliso ea matla le lerata).
③Thermal conductivity:Ho phahama ha mocheso oa mocheso, ho potlakisa lebelo la ho pholisa.
U tlameha ho tseba mefuta e 4 ea mantlha ea katleho ea sehatsetsing:
1.R600a (isobutane, sehatsetsi sa hydrocarbon)
(1)Tšireletso ea tikoloho: GWP (Global Warming Potential) ≈ 0, ODP (Potential Destruction ea Ozone) = 0, tumellanong le European Union F - melao ea Khase.
(2)Katleho ea sehatsetsing: ntlha e belang - 11.7 °C, e loketse litlhoko tsa kamore ea sehatsetsi sa sehatsetsi (-18 °C), bophahamo ba sehatsetsing sa unit bo ka ba 30% ho feta R134a, phallo ea compressor e nyane, 'me tšebeliso ea matla e tlase.
(3)Tlhaloso ea nyeoe: Sehatsetsi sa 190L se sebelisa R600a, ka matla a letsatsi le letsatsi a sebelisoang ke likhato tse 0.39 (maemo a sebetsang a matla a 1).
2.R134a (tetrafluoroethane)
(1)Tšireletso ea tikoloho: GWP = 1300, ODP = 0, European Union e tla thibela tšebeliso ea lisebelisoa tse ncha ho tloha 2020.
(2)Katleho ea sehatsetsing: ntlha e belang - 26.5 °C, ts'ebetso ea mocheso o tlase e betere ho feta R600a, empa matla a ho futhumatsa a unit a tlase, a hloka compressor e kholo ea phalliso.
(3) Khatello ea condenser e phahame ka 50% ho feta ea R600a, 'me tšebeliso ea matla ea compressor ea eketseha.
3.R32 (difluoromethane)
(1)Tšireletso ea tikoloho: GWP = 675, e leng 1/2 ea R134a, empa e ka cha (ho thibela kotsi ea ho lutla).
(2)Katleho ea sehatsetsing: ntlha e belang - 51.7 ° C, e loketseng li-air conditioners tsa inverter, empa khatello ea condensation ka sehatsetsing e phahame haholo (ka makhetlo a mabeli ho feta R600a), e ka lebisang habonolo compressor overload.
4.R290 (propane, sehatsetsi sa hydrocarbon)
(1)Botsoalle ba tikoloho: GWP ≈ 0, ODP = 0, ke khetho ea pele ea "refrigerant ea ka moso" ho European Union.
(2)Katleho ea sehatsetsing: ntlha e belang - 42 °C, matla a ho pholisa a unit 40% ho feta R600a, a loketse lihatsetsi tse kholo tsa khoebo.
Tlhokomeliso:Lihatsetsi tsa ka tlung li hloka ho koaloa ka thata ka lebaka la ho chesa (ho khantša 470 ° C) (litšenyehelo li eketseha ka 15%).
Sehatsetsi se ama lerata la sehatsetsi joang?
Lerata la sehatsetsi haholo-holo le tsoa ho vibration ea compressor le lerata la sehatsetsing. Litšobotsi tsa sehatsetsing li ama lerata ka litsela tse latelang:
(1) Ts'ebetso ea khatello e phahameng (khatello ea 2.5MPa), compressor e hloka ts'ebetso e phahameng ea maqhubu, lerata le ka fihla ho 42dB (sehatsetsi se tloaelehileng se ka bang 38dB), ts'ebetso ea khatello e tlaase (khatello ea 0.8MPa), mojaro oa compressor o tlaase, lerata le tlaase ho 36dB.
(2) R134a e na le viscosity e phahameng (0.25mPa · s), ’me e sekamela ho lerata la throttling (e tšoanang le molumo oa “hiss”) ha e phalla ka har’a tube ea capillary. R600a e na le viscosity e tlase (0.11mPa · s), phallo e thellang, le lerata le fokotsehileng ka hoo e ka bang 2dB.
Tlhokomeliso: Sehatsetsi sa R290 se hloka ho eketsa ho phatloha - moralo oa bopaki (joaloka lesela le teteaneng la foam), empa se ka etsa hore lebokose le be le molumo le lerata le nyolohang ka 1 - 2dB.
Mokhoa oa ho khetha mofuta oa sehatsetsing?
R600a e na le lerata le tlaase bakeng sa tšebeliso ea lapeng, litšenyehelo li nka 5% ea kakaretso ea theko ea sehatsetsi, R290 e na le tšireletso e phahameng ea tikoloho, e finyella litekanyetso tsa European Union, theko ke 20% e theko e boima ho feta R600a, R134a e lumellana, e loketse lihatsetsi tsa khale, R32 ha e ea hōla, khetha ka hloko!
Refrigerant ke "mali" a sehatsetsing, 'me mofuta oa eona o ama ka ho toba tšebeliso ea matla, lerata, polokeho le bophelo ba tšebeletso. Bakeng sa bareki ba tloaelehileng, R600a ke khetho e ntle ka ho fetisisa bakeng sa ts'ebetso e akaretsang ea hajoale, 'me R290 e ka nkuoa molemong oa ts'ireletso e feteletseng ea tikoloho. Ha u reka, u ka netefatsa mofuta oa sehatsetsi ka letšoao la nameplate le ka morao ho sehatsetsi (joaloka "Refrigerant: R600a") ho qoba ho khelosoa ke likhopolo tsa papatso tse kang "frequency conversion" le "frost - free".
Nako ea poso: Mar-26-2025 Maikutlo: