Fan ndi makina okhala ndi masamba awiri kapena kupitilira apo kukankhira mpweya. Masambawo asintha mphamvu zamakina zozungulira zomwe zimagwiritsidwa ntchito pa shaft kukhala kuchuluka kwa kukakamiza kukankhira gasi. Kusintha kumeneku kumayendera limodzi ndi kayendedwe ka madzimadzi.
Muyezo woyeserera wa American Society of Mechanical Engineers (ASME) umachepetsa zimakupiza kuti ziwonjezeke kachulukidwe ka gasi osapitilira 7% podutsa polowera mpweya kupita kumalo opangira mpweya, womwe ndi pafupifupi 7620 Pa (ma inchi 30 amadzi) pansi pamikhalidwe yokhazikika. Ngati kuthamanga kwake kuli kwakukulu kuposa 7620Pa (ma inchi 30 a madzi), ndi "compressor" kapena "wowuzira" ·
Kupanikizika kwa mafani omwe amagwiritsidwa ntchito potenthetsa, mpweya wabwino komanso mpweya wabwino, ngakhale pamakina othamanga kwambiri komanso othamanga kwambiri, nthawi zambiri sadutsa 2500-3000Pa (10-12 mainchesi amadzi) ·
Kukupiza kumakhala ndi zigawo zitatu zazikulu: chowongolera (nthawi zina chimatchedwa turbine kapena rotor), zida zoyendetsera ndi chipolopolo.
Kuti athe kuneneratu molondola ntchito ya fan, wopanga ayenera kudziwa:
(a) Momwe mungayesere ndikuyesa makina opangira mphepo;
(b) Mphamvu ya makina oyendetsa mpweya pakugwira ntchito kwa fan.
Mitundu yosiyanasiyana ya mafani, ngakhale mtundu womwewo wa mafani opangidwa ndi opanga osiyanasiyana, amakhala ndi machitidwe osiyanasiyana ndi dongosolo
Nthawi yotumiza: Mar-06-2023