N’chifukwa chiyani refrigerant ndi chinthu chothandizira kuziziritsa firiji?

TheMafiriji owongokandipo mafiriji opingasa pamsika amagwiritsa ntchito kuziziritsa mpweya, kuziziritsa, ndi zina zotero, koma onse ndi mitundu yosiyanasiyana ya mafiriji R600A ndi R134A. Zachidziwikire, "chothandizira" apa chikutanthauza kusamutsa mphamvu, kutanthauza, kutenthetsa ndi kuzizira kuti kutentha kusamutsidwe. Kwa anthu wamba, timangofunika kumvetsetsa kuti ndi gawo lofunika kwambiri pakuziziritsa firiji.

Kuti mumvetsetse mosavuta, mfundo yoyambira yosungiramo zinthu mufiriji imadalira njira yosinthira ya Carnot kudzera mu magawo anayi ofunikira:

(1) Kupsinjika (kutentha kwambiri ndi mpweya wopanikizika kwambiri)

Chokometsera chimakanikiza mpweya wozizira wotentha pang'ono komanso wopanikizika pang'ono kukhala mpweya wotentha kwambiri komanso wopanikizika kwambiri, zomwe zimapangitsa kuti kutentha kwake kukwere kwambiri (monga -20 ° C mpaka 100 ° C).

(2) Kuzizira (kutentha kumakhala madzi)

Mpweya wotentha kwambiri komanso wopanikizika kwambiri umalowa mu condenser, kutulutsa kutentha kudzera mu fan yoziziritsira, ndipo umasanduka kutentha kwabwinobwino komanso madzi opanikizika kwambiri pambuyo pozizira.

(3) Kukulitsa (kuchepa kwa kupanikizika kwa mpweya wa endothermic)

Madzi othamanga kwambiri akadutsa mu valavu yokulitsa, kuthamanga kumatsika kwambiri, kumatulutsa nthunzi pang'ono ndikuyamwa kutentha kozungulira evaporator, zomwe zimapangitsa kuti mkati mwa firiji muzizire.

(4) Kutuluka kwa nthunzi (kutentha kochepa ndi mpweya wochepa mphamvu)

Madzi oziziritsa pa kutentha kochepa komanso kupanikizika kochepa amasungunuka kwathunthu mu evaporator, ndikuyamwa kutentha mufiriji, kenako nkubwerera ku compressor kuti amalize kuzungulira.

Pakadali pano, ntchito yofunika kwambiri ya refrigerant imawonekera mu kuyamwa kwa kutentha ndi kusintha kwa gawo, ndipo njira yoyamwa kutentha ndi nthunzi idzaziziritsa firiji.

Zindikirani:Firiji imabwezeretsedwanso mu dongosolo lotsekedwa ndipo imagwiritsidwa ntchito mobwerezabwereza popanda kugwiritsidwa ntchito. Kapangidwe kake (monga kutentha kochepa, kutentha kwambiri kobisika) ndi komwe kumatsimikizira momwe kuziziritsira kumagwirira ntchito.

Apa ndikufunika kukufotokozerani kuti ogwiritsa ntchito angasokoneze lingaliro la "catalyst" ndi "medium". Mafiriji satenga nawo mbali mu zochita za mankhwala, koma amasamutsa mphamvu kudzera mu kusintha kwa gawo la thupi, koma magwiridwe antchito awo amakhudza mwachindunji zotsatira zoziziritsira (monga kugwira ntchito bwino, kutentha), monga momwe zimakhudzira kufunika kwa ma catalyst mu zochita za mankhwala, koma njira ziwirizi ndizosiyana kotheratu.

Mawonekedwe:

(1) N'zosavuta kutenthetsa ndi kuyamwa kutentha kutentha kwa chipinda (monga R600a kutentha - 11.7 ° C), imakhala ndi mphamvu ya mankhwala, ndipo siivuta kuwola kapena kuwononga zida.

(2) Kusamalira chilengedwe: Kuchepetsa kuwonongeka kwa ozoni (monga R134a imalowa m'malo mwa R12).

Mafiriji ndi njira yaikulu yosungiramo firiji yamalonda. Amasamutsa kutentha kudzera mu kusintha kwa gawo, mofanana ndi "onyamula kutentha", omwe amatulutsa kutentha mkati mwa firiji kupita kunja pozungulira, motero kusunga malo otentha otsika.