Indlela yokukhetha ifeni efanelekileyo

1, Ungayikhetha njani fan yeshishini?

Iifeni zemizi-mveliso zinokusetyenziselwa iinjongo ezininzi kwaye zineendlela ezahlukeneyo zokucwangcisa:

-Ifeni edibeneyo

-Fan yombhobho

-Fan ephathekayo

-Umbane wekhabhinethi fan

-Abanye.

Inyathelo lokuqala kukufumanisa uhlobo lwefeni efunekayo.

Ukhetho lwetekhnoloji luhlala lwenziwa phakathi kwe-axial flow fan kunye ne-centrifugal fan.Ngamafutshane, abalandeli be-axial flow flow banokubonelela ngokuhamba komoya okuphezulu kunye noxinzelelo oluphantsi, ngoko ke bafaneleka kuphela ukwehla koxinzelelo oluphantsi (isiphaluka esifutshane) izicelo, ngelixa abalandeli be-centrifugal bafaneleka ngakumbi ukuhla koxinzelelo oluphezulu (isekethe ende) izicelo.Abalandeli be-Axial flow nabo ngokubanzi baxinene kwaye banengxolo kunabalandeli be-centrifugal abalinganayo.

Iifeni zikhethwa ukubonelela umlinganiselo othile womoya (okanye igesi) kwinqanaba elithile loxinzelelo.Kwizicelo ezininzi, ukhetho lulula kwaye izinga lokuhamba eliboniswe ngumenzi lanele ukubala ubungakanani befeni.Imeko iba nzima ngakumbi xa i-fan ixhunyiwe kwisekethe (inethiwekhi ye-ventilation, ukunikezelwa komoya kwi-burner, njl.).Ukuhamba komoya okuhanjiswe yi-fan kuxhomekeke kwiimpawu zayo kwaye kuxhomekeke ekunciphiseni uxinzelelo lwesekethe.Lo ngumgaqo wendawo yokusebenza: ukuba i-curve ye-fan flow pressure kunye ne-loop flow pressure loss loss curve izotywa, indawo yokusebenza yefeni kule sekethi iya kufumaneka kwi-intersection ye-curves ezimbini.

Nangona uninzi lwabalandeli besebenza kubushushu begumbi, abanye abalandeli kufuneka basebenze kubushushu obuthile okanye iimeko zokusingqongileyo.Oku kunjalo, umzekelo, kunye ne-fan ejikelezayo kwi-oven.Ke ngoko, kubalulekile ukukhetha iintlobo ezahlukeneyo zabalandeli ngokwezicelo ezahlukeneyo.

2, Kutheni ukhetha fan spiral?

I-spiral fan (okanye i-axial flow fan) yenziwe ngepropeller ene-injini ejikelezayo kwi-axis yayo.Ipropeller ityhala ukuhamba komoya ngokunxusene ne-axis yayo yokujikeleza.

I-spiral fan inokubonelela ngokuhamba komoya okuphezulu, kodwa uxinzelelo phakathi komlambo onyukayo kunye nosezantsi aluzange lunyuke ngokukhawuleza.Ngenxa yokuba i-overpressure iphantsi kakhulu, ukusetyenziswa kwabo kunqunyelwe kwisiphaluka esifutshane esibangelwa ukuhla koxinzelelo oluphantsi.

Abalandeli be-Axial badla ngokuba ne-2 ukuya kwi-60 blades.Ukusebenza kwayo kungama-40% ukuya kuma-90%.

Le fan ngokuqhelekileyo isetyenziselwa ukujikeleza komoya kumagumbi amakhulu, ngokusebenzisa i-ventilation eludongeni kunye nokungena komoya kumagumbi.

Xa kuthelekiswa nefeni ye-centrifugal, fan ye-spiral ithatha indawo encinci, ixabisa kancinci kwaye inengxolo ephantsi.

3, Kutheni ukhethe fan centrifugal?

I-fan ye-centrifugal (okanye i-runoff fan) iqulethe ivili le-fan (i-impeller), eqhutywa yi-motor ejikelezayo kwi-stator exhunywe kwi-impeller.I-stator ineendawo ezimbini zokuvuleka: indawo yokuqala yokuvula inikezela ulwelo kwindawo ephakathi ye-impeller, i-fluid ingena nge-vacuum, kwaye ivula yesibini ivuthela emphethweni ngesenzo se-centrifugal.

Kukho iintlobo ezimbini zeefeni ze-centrifugal: fan ye-bend yangaphambili kunye ne-back bend fan.Ifeni ye-centrifugal egobileyo ine-"squirrel cage" i-impeller kunye ne-32 ukuya kwi-42 blades.Ukusebenza kwayo kungama-60% ukuya kuma-75%.Ukusebenza kwefeni ye-centrifugal egobileyo ngasemva yi-75% ukuya kwi-85%, kwaye inani leeblades yi-6 ukuya kwi-16.

Uxinzelelo olugqithisileyo luphezulu kunolo lwe-spiral fan, ngoko ke fan ye-centrifugal ifaneleke ngakumbi kwisekethe ende.

Abalandeli be-Centrifugal nabo banenzuzo ngokwemigangatho yengxolo: bayazola.Nangona kunjalo, kuthatha indawo eninzi kwaye ixabisa ngaphezulu kwenkanyamba.

4, Indlela yokukhetha ifeni ye-elektroniki?

Iifeni ze-Electronics zi-compact kunye neefeni ezivaliweyo ezinomlinganiselo oqhelekileyo kunye nombane wokubonelela (AC okanye i-DC) ukudibanisa lula kwindawo ebiyelweyo.

Ifeni isetyenziselwa ukuphelisa ubushushu obuveliswa ngamacandelo e-elektroniki kwindawo ebiyelweyo.Khetha ngokwemiqathango elandelayo:

Ukufuduswa komoya

umthamo

Umbane wombane okhoyo kwindawo ebiyelweyo

Ukwenzela ukubumbana, uninzi lwabalandeli be-elektroniki ngabalandeli be-spiral, kodwa kukwakho nabalandeli be-centrifugal kunye ne-diagonal flow flow, abanokubonelela ngokuhamba komoya okuphezulu.

5, Indlela yokukhetha abalandeli kwikhabhathi yombane?

Umtshini wekhabhathi yombane unokuvuthela umoya obandayo kwikhabhinethi ukulawula ubushushu bezixhobo zombane.Banqanda uthuli ekungeneni kwikhabhinethi ngokudala uxinzelelo oluncinci.

Ngokuqhelekileyo, aba balandeli bafakwe emnyango okanye eludongeni lwecala lwekhabhinethi kwaye bahlanganiswe kwinethiwekhi yomoya.Kukho neemodeli ezinokufakwa phezulu kwikhabhinethi.Baxhotyiswe ngeefilitha zokuthintela uthuli ekungeneni kwikhabhinethi.

Ukhetho lwale fan lusekwe kwi:

Ukufuduswa komoya

Umbane wokubonelela ngeKhabhinethi

Ukusebenza kwesihluzi