1, Momwe mungasankhire zimakupiza mafakitale?
Mafani a mafakitale amatha kugwiritsidwa ntchito pazifukwa zambiri ndipo amakhala ndi masinthidwe osiyanasiyana:
- Zokonda zophatikizika
- Wofanizira duct
-Kunyamulika fan
-Kunyamulira kabati yamagetsi
-Zina.
Chinthu choyamba ndicho kudziwa mtundu wa fan wofunikira.
Kusankha kwaukadaulo nthawi zambiri kumapangidwa pakati pa fan axial flow ndi centrifugal fan.Mwachidule, mafanizi a axial flow angapereke mpweya wothamanga kwambiri komanso kutsika kwapansi, choncho ndi oyenerera kutsika kwapansi (pafupifupi dera) ntchito, pamene mafani a centrifugal ali oyenerera kwambiri kutsika kwapamwamba (kutalika).Mafani a Axial flow nawonso amakhala ophatikizika komanso aphokoso kuposa mafani ofanana a centrifugal.
Fans amasankhidwa kuti apereke kuchuluka kwa mpweya (kapena gasi) pamlingo wina wopanikizika.Kwa ntchito zambiri, kusankha ndikosavuta komanso kuthamanga komwe kumawonetsedwa ndi wopanga ndikokwanira kuwerengera kukula kwa fan.Zinthu zimakhala zovuta kwambiri pamene fani imagwirizanitsidwa ndi dera (network mpweya wabwino, mpweya wopita ku chowotcha, etc.).Kuthamanga kwa mpweya woperekedwa ndi fani kumadalira makhalidwe ake komanso kumadalira kutsika kwapakati pa dera.Iyi ndiye mfundo ya malo ogwirira ntchito: ngati chiwombankhanga chothamanga cha fani ndi chiwombankhanga cha kutayika kwa loop chikoka, malo ogwirira ntchito a fani mu dera lino adzakhala pa mphambano ya ma curve awiri.
Ngakhale mafani ambiri amagwira ntchito kutentha kwa chipinda, mafani ena amayenera kugwira ntchito pa kutentha kwina kapena kumadera ena.Izi ndizochitika, mwachitsanzo, ndi fan yozungulira mu uvuni.Choncho, ndikofunika kusankha mitundu yosiyanasiyana ya mafani malinga ndi ntchito zosiyanasiyana.
2. Chifukwa chiyani kusankha zimakupiza ozungulira?
The spiral fan (kapena axial flow fan) imapangidwa ndi propeller yomwe injini yake imazungulira pa axis yake.Pulapala imakankhira kayendedwe ka mpweya kutsagana ndi mzere wake wozungulira.
The spiral fan imatha kutulutsa mpweya wambiri, koma kupanikizika pakati pa kumtunda ndi kumunsi kwamtsinje sikunachuluke.Chifukwa choponderezedwa kwambiri ndi chochepa kwambiri, kugwiritsa ntchito kwawo kumangokhala kufupi kwafupipafupi komwe kumayambitsa kutsika kwapansi.
Mafani a Axial nthawi zambiri amakhala ndi masamba awiri mpaka 60.Kuchita bwino kwake ndi 40% mpaka 90%.
Fani iyi imagwiritsidwa ntchito poyendetsa mpweya m'zipinda zazikulu, kudzera pakhoma komanso mpweya wabwino m'zipinda.
Poyerekeza ndi fan centrifugal, fan ya spiral imatenga malo ochepa, imawononga ndalama zochepa komanso imakhala ndi phokoso lochepa.
3, N'chifukwa chiyani kusankha centrifugal zimakupiza?
The centrifugal fan (kapena runoff fan) imakhala ndi gudumu la fan (impeller), yomwe imayendetsedwa ndi mota yomwe imazungulira mu stator yolumikizidwa ndi cholumikizira.Stator ili ndi mipata iwiri: kutsegulira koyamba kumapereka madzi kuchigawo chapakati cha choyikapo, madzimadziwo amalowa mu vacuum, ndipo kutsegula kwachiwiri kumawombera m'mphepete mwa centrifugal action.
Pali mitundu iwiri ya mafani a centrifugal: fan bend wakutsogolo ndi fan bend kumbuyo.Fani yopindika kutsogolo ya centrifugal ili ndi cholowera cha "squirrel cage" ndi masamba 32 mpaka 42.Kuchita bwino kwake ndi 60% mpaka 75%.Kuchita bwino kwa fan yokhota kumapeto kwa centrifugal ndi 75% mpaka 85%, ndipo kuchuluka kwa masamba ndi 6 mpaka 16.
Kuponderezana kwakukulu ndikwambiri kuposa kwa spiral fan, kotero fan ya centrifugal ndiyoyenera kuyenda mozungulira.
Mafani a Centrifugal alinso ndi mwayi potengera kuchuluka kwa phokoso: amakhala chete.Komabe, zimatengera malo ochulukirapo ndipo zimawononga ndalama zambiri kuposa chimphepo chamkuntho.
4, Kodi kusankha zimakupiza pakompyuta?
Mafani amagetsi ndi mafani ophatikizika komanso otsekeredwa okhala ndi miyeso yokhazikika komanso ma voltages operekera (AC kapena DC) kuti aphatikizidwe mosavuta mchipindacho.
Fanizo limagwiritsidwa ntchito kuthetsa kutentha komwe kumapangidwa ndi zida zamagetsi zomwe zili mumpanda.Sankhani molingana ndi izi:
Kusamuka kwa mpweya
kuchuluka
Magetsi opezeka mumpanda
Chifukwa cha compactness, mafani ambiri amagetsi ndi mafani ozungulira, koma palinso ma centrifugal ndi diagonal flow fans, omwe angapereke mpweya wochuluka.
5, Momwe mungasankhire mafani a kabati yamagetsi?
Chowotcha chamagetsi chamagetsi chimatha kuwomba mpweya wozizira mu nduna kuti chiwongolere kutentha kwa zida zamagetsi.Amaletsa fumbi kulowa mu kabati popanga kupanikizika pang'ono.
Nthawi zambiri, mafaniwa amayikidwa pakhomo kapena khoma lakumbali la nduna ndikuphatikizidwa mu netiweki ya mpweya wabwino.Palinso zitsanzo zina zomwe zingathe kuikidwa pamwamba pa kabati.Amakhala ndi zosefera kuti fumbi lisalowe mu kabati.
Kusankhidwa kwa faniyi kutengera:
Kusamuka kwa mpweya
Mphamvu yamagetsi yamagetsi
Kuchita bwino kwa fyuluta
Nthawi yotumiza: Nov-25-2022