Chokometsera cha Mpweya Woziziritsa wa NF cha Basi

Thekompresa mpweya woziziritsa wamagetsindiye gawo lalikulu la makina oziziritsira mpweya a galimoto yamagetsi. Mfundo yake yogwirira ntchito imaphatikizapo kugwiritsa ntchito mota yamagetsi kuti ikanikize firiji yotsika komanso yampweya wochepa kukhala mpweya wotentha kwambiri, wampweya wokwera, ndikuyendetsa firijiyo kudzera mumakina otsekedwa kuti izizire (kapena kutentha) mkati mwa galimotoyo.

Njira yake yaikulu yogwirira ntchito imatsatira ndondomeko yoziziritsira ya "compression-condensation-expansion-evaporation":

1. Kukanikiza: Mota yamagetsi imayendetsa makina okanikiza—nthawi zambiri chosonkhanitsa chozungulira kapena pisitoni yobwerezabwereza—kuti ikanikize nthunzi yoziziritsira yotsika kutentha komanso yotsika mphamvu yochokera ku evaporator. Njira imeneyi imakweza kuthamanga ndi kutentha kwa firiji, zomwe zimapangitsa kuti nthunzi yotentha kwambiri komanso yotsika kwambiri ikhale ndi mphamvu.

2. Kuzizira: Nthunzi ya firiji yotentha kwambiri komanso yothamanga kwambiri imatumizidwa ku condenser yakunja, komwe imakana kutentha kobisika kupita ku mpweya wozungulira kudzera mu convection yokakamiza. Zotsatira zake, refrigerant imadutsa mu desuperheating, condensation, ndi subcooling yonse, ndikutuluka ngati madzi othamanga kwambiri, subcooled.

3. Kukula: Choziziritsira chamadzimadzi chothamanga kwambiri chimadutsa mu valavu yokulitsa ya thermostatic (TXV) kapena valavu yokulitsa yamagetsi (EXV), ndikudutsa mu njira yolumikizira ya isenthalpic. Izi zimachepetsa kuthamanga kwake ndi kutentha kwake kwambiri, zomwe zimapangitsa kuti chisakanizo cha madzi ndi nthunzi chikhale chotentha pang'ono (nthawi zambiri 20–30% ya nthunzi).

4. Kutuluka kwa nthunzi: Chosakaniza cha firiji chotentha pang'ono komanso chotsika mphamvu chimalowa mu evaporator yoyikidwa mu kabati. Chimatenga kutentha koyenera komanso kobisika kuchokera mumsewu wozungulira/wozungulira, ndikuwutentha kwathunthu kukhala nthunzi yodzaza kapena yotentha pang'ono. Kusintha kwa gawo la endothermic kumeneku kumazizira ndikuchotsa chinyezi chomwe chimaperekedwa ku chipinda cha okwera.

5. Kuzungulira kwa Madzi: Nthunzi ya firiji yomwe imachokera ku kutentha kochepa komanso yotsika imakokedwanso mu cholowera cha compressor, motero imamaliza kuzungulira kwa thermodynamic kotsekedwa—mobwerezabwereza kuti kutentha kwa kabati kukhale kosangalatsa komanso kukhazikika kwa dongosolo.