Makina a HVAC amadalira zida zopangira mpweya wabwino kuti azitenthetsera malo komanso zoziziritsira mpweya, chifukwa zoziziritsa kukhosi ndi zotenthetsera paokha sizingathe kutulutsa kutentha kapena kuziziritsa komwe kukufunika.Kuphatikiza apo, makina opangira mpweya wabwino amaonetsetsa kuti mpweya wabwino umakhala wokhazikika m'malo amkati.Kutengera kukakamizidwa ndi kuyenderera kwa mpweya pa ntchito iliyonse, mwina fani kapena chowuzira chimagwiritsidwa ntchito.
Musanayambe kukambirana za mitundu ikuluikulu ya mafani ndi owombera, ndikofunikira kumvetsetsa kusiyana pakati pa malingaliro onse awiri.American Society of Mechanical Engineers (ASME) imatanthawuza mafani ndi zowombera kutengera chiŵerengero chapakati pa kutulutsa mphamvu ndi kuyamwa.
- Wotsatsa:Pressure ratio mpaka 1.11
- Wowuzira:Kuthamanga kwapakati kuchokera 1.11 mpaka 1.2
- Compressor:Chiyerekezo cha Pressure chimaposa 1.2
Mafani ndi zowuzira ndizofunikira kuti mpweya ugonjetse kukana kwamadzi komwe kumachitika chifukwa cha zinthu monga ma ducts ndi ma dampers.Pali mitundu yambiri yomwe ilipo, iliyonse yomwe ili yoyenera kugwiritsa ntchito zina.Kusankha mtundu woyenera kumathandiza kukhathamiritsa magwiridwe antchito a HVAC, pomwe kusasankha bwino kumabweretsa kuwononga mphamvu.
Kodi mukugwiritsa ntchito zida zokwanira zopumira mpweya?
Lumikizanani nafe
Mitundu ya Fans
Mafani amatha kugawidwa kukhala centrifugal kapena axial kutengera momwe amakhazikitsira mpweya.Komanso, pali mitundu ingapo m'gulu lililonse, ndipo kusankha chowotcha chomwe chimagwirizana ndi pulogalamuyo ndikofunikira pakuyika kwa HVAC kochita bwino kwambiri.
Gome lotsatirali likufotokoza mwachidule mitundu ikuluikulu ya mafani a centrifugal: radial, yopindika kutsogolo, yopindika kumbuyo ndi mtundu wa airfoil.
| NTCHITO YOTSATIRA | DESCRIPTION |
| Radial | -Kuthamanga kwambiri komanso kuyenda kwapakati -Imalekerera fumbi, chinyezi ndi kutentha, kuzipangitsa kukhala zoyenera kugwiritsidwa ntchito m'mafakitale -Kugwiritsa ntchito mphamvu kumawonjezeka kwambiri pamodzi ndi kayendedwe ka mpweya |
| Patsogolo chopindika | -Kuthamanga kwapakati komanso kuthamanga kwambiri -Yoyenera machitidwe a HVAC okhala ndi mphamvu yotsika, monga mayunitsi apadenga - Imalekerera fumbi, koma siyoyenera kuyika mafakitole ovuta -Kugwiritsa ntchito mphamvu kumawonjezeka kwambiri pamodzi ndi kayendedwe ka mpweya |
| Chammbuyo chopindika | -Kuthamanga kwambiri komanso kuthamanga kwambiri -Wogwiritsa ntchito mphamvu -Simawona kuwonjezeka kwakukulu kwa kuthamanga kwa mpweya -HVAC ndi ntchito zamafakitale, zimakakamizanso machitidwe olembera |
| Ndege | -Kuthamanga kwambiri komanso kuthamanga kwambiri -Wogwiritsa ntchito mphamvu - Zapangidwira ntchito zokhala ndi mpweya wabwino |
Kumbali ina, mafani a axial flow amagawidwa kukhala ma propellers, chubu axial ndi vane axial.
| NTCHITO YOTSATIRA | DESCRIPTION |
| Woyendetsa ndege | -Kuthamanga kwapang'onopang'ono ndi kutuluka kwakukulu, kutsika kwachangu -Yoyenera kutentha kwapakati -Kuthamanga kwa mpweya kumachepetsedwa kwambiri ngati kuthamanga kwa static kumawonjezeka. -Mapulogalamu odziwika bwino amaphatikizapo mafani otulutsa mpweya, ma condenser akunja ndi nsanja zozizirira |
| Tube axial | -Kuthamanga kwapakati komanso kuthamanga kwambiri - Nyumba zokhala ndi ma cylindrical ndi chilolezo chaching'ono chokhala ndi ma fan fan kuti mpweya uziyenda bwino -Imagwiritsidwa ntchito mu HVAC, makina otulutsa ndi kuyanika |
| Vane axial | -Kuthamanga kwambiri komanso kuyenda kwapakatikati, kuchita bwino kwambiri -Zofanana ndi mafani a chubu axial, kuphatikiza mavane owongolera pakudya kuti apititse patsogolo magwiridwe antchito -Kugwiritsa ntchito nthawi zambiri kumaphatikizapo HVAC ndi makina otulutsa mpweya, makamaka pamene kuthamanga kwakukulu kumafunika |
Ndi kusankha kwakukulu kwa mafani, pali njira yothetsera pafupifupi ntchito iliyonse.Komabe, kusiyanasiyana kumatanthauzanso kuti pali mwayi waukulu wosankha fan yolakwika popanda chitsogozo choyenera.Malangizo abwino kwambiri ndikupewa zisankho za "ulamuliro wa thumb", ndipo m'malo mwake pezani katswiri wopanga zomwe zimakwaniritsa zosowa za polojekiti yanu.
Mitundu ya Mawomba
Monga tanenera kale, zowombera zimagwira ntchito ndi chiŵerengero cha 1.11 mpaka 1.2, zomwe zimawapangitsa kukhala apakati pakati pa fani ndi compressor.Atha kutulutsa zitsenderezo zokwera kwambiri kuposa mafani, komanso amagwiranso ntchito pazavuni zamafakitale zomwe zimafuna kupanikizika koyipa.Zowombera zimagawidwa m'magulu awiri: centrifugal ndi positive displacement.
Zowombera za centrifugalkukhala ndi mawonekedwe ofanana ndi mapampu apakati.Nthawi zambiri amaphatikiza magiya kuti akwaniritse liwiro lopitilira 10,000 rpm.Ma centrifugal blowers amatha kukhala ndi gawo limodzi kapena masitepe ambiri, pomwe mapangidwe a gawo limodzi amapereka magwiridwe antchito apamwamba, koma mawonekedwe opangira masitepe ambiri amapereka mpweya wambiri pazovuta zokhazikika.
Monga mafani, zowombera centrifugal zimakhala ndi ntchito mu HVAC.Komabe, chifukwa cha kupanikizika kwawo kwakukulu, amagwiritsidwanso ntchito poyeretsa zida ndi magalimoto.Cholepheretsa chawo chachikulu ndi chakuti mpweya umachepa mofulumira pamene chopinga chikukweza kupanikizika, kuwapangitsa kukhala osayenera kwa mapulogalamu omwe ali ndi mwayi waukulu wotseka.
Zowombera zabwino zosunthakhalani ndi rotor geometry yopangidwa kuti igwire matumba a mpweya, kuyendetsa kuyenda komwe mukufunira ndi kuthamanga kwambiri.Ngakhale kuti zimazungulira pa liwiro lotsika kuposa zowulutsira ma centrifugal, zimatha kutulutsa mphamvu yokwanira kuti ziwuze zinthu zomwe zatsekereza dongosolo.Kusiyana kwina kofunikira ndi zosankha za centrifugal ndikuti zowombera zabwino zimayendetsedwa ndi malamba m'malo mwa magiya.
Mapeto
Mafani ndi zowulutsira nthawi zambiri amatchulidwa kutengera kukakamizidwa komanso momwe mpweya umayendera pakugwiritsa ntchito kulikonse, komanso momwe zinthu zimayendera monga fumbi ndi kutentha.Mtundu woyenera wa fan kapena wowombeza watchulidwa, magwiridwe antchito amatha kupitilizidwa ndi makina owongolera.Mwachitsanzo,ma variable frequency drives (VFD)imatha kuchepetsa kwambiri kugwiritsa ntchito magetsi kwa mafani omwe amagwira ntchito modukizadukiza.
Nthawi yotumiza: Jan-13-2021