Izinhlobo ezimbili zabalandeli ezivamile ezisetshenziswa ezinsizakalweni zokwakha zamasistimu ama-ducted zibizwa ngokujwayelekile ngokuthi amafeni amaphakathi ne-axial - igama elisuselwa kundlela echazayo yokugeleza komoya kufeni.Lezi zinhlobo ezimbili ngokwazo zihlukaniswe zibe yinani lezinhlobo ezincane eziye zathuthukiswa ukuze zinikeze izici ezithile zokugeleza kwevolumu/ukucindezela, kanye nezinye izici zokusebenza (kuhlanganise nosayizi, umsindo, ukudlidliza, ukuhlanzeka, ukugcinwa nokuqina).

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Ithebula 1: I-US kanye ne-Europe eshicilele idatha ephezulu yokusebenza kwabalandeli kubalandeli >600mm ububanzi

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Ezinye zezinhlobo zabalandeli okuvame ukuhlangatshezwana nazo ezisetshenziswa ku-HVAC zifakwe kuhlu kuThebula 1, kanye nezinkomba zokuphumelela eziqoqwe1 kusuka kudatha eshicilelwe uhla lwabakhiqizi base-US nabaseYurophu.Ngaphezu kwalokhu, ifeni ye-'plug' (okuyinto empeleni okuhlukile kwe-centrifugal fan) ibone ukuthandwa okukhulayo eminyakeni yamuva nje.

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Umfanekiso 1: Amajika amafeni ajwayelekile.Abalandeli bangempela bangahluka kakhulu kulawa majika enziwe lula

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Isici samajika amafeni aboniswa kuMfanekiso 1. Lawa amajika ayihaba, abukeke kahle, futhi abalandeli bangempela bangase bahluke kakhulu kulawa;nokho, kungenzeka ukuthi babonise izimfanelo ezifanayo.Lokhu kuhlanganisa izindawo zokuntengantenga okubangelwa ukuzingela, lapho isiphephetha-moya singashintshashintsha phakathi kokugeleza okungaba khona okubili ngengcindezi efanayo noma ngenxa yokuma kwefeni (bona Ukuma kwebhokisi lokugeleza komoya).Abakhiqizi kufanele futhi bakhombe izigaba zokusebenza 'eziphephile' ezithandwayo ezincwadini zabo.

Abalandeli be-Centrifugal

Ngabalandeli be-centrifugal, umoya ungena ku-impeller kanye ne-axis yayo, bese ukhishwa ngokushisa okuphansi ku-impeller ngokunyakaza kwe-centrifugal.Laba balandeli bayakwazi ukukhiqiza kokubili ukucindezela okuphezulu nokugeleza kwevolumu ephezulu.Iningi labalandeli bendabuko be-centrifugal livalelwe endlini yohlobo lokuskrola (njengakuMdwebo 2) osebenza ukuqondisa umoya onyakazayo futhi uguqule ngempumelelo amandla e-kinetic abe yingcindezi emile.Ukuze uhambise umoya owengeziwe, ifeni ingaklanywa nge-impeller 'yobubanzi obukabili efaka inlet', evumela umoya ukuthi ungene nhlangothi zombili zebhokisi.

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Umfanekiso 2: Ifeni ye-Centrifugal ku-scroll casing, ene-impeller ebheke emuva

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Kunenombolo yomumo wama-blade angenza i-impeller, nezinhlobo eziyinhloko ezigobile phambili futhi zigobile emuva - ukuma kwe-blade kuzonquma ukusebenza kwayo, ukusebenza kahle okungenzeka kanye nokuma kwejika le-fan yesici.Ezinye izici ezizothinta ukusebenza kahle kwefeni ububanzi besondo lomfutho, indawo yokuvula phakathi kwekhoni yokungena kanye ne-impeller ezungezayo, futhi indawo esebenzise ukukhulula umoya kufeni (okubizwa ngokuthi 'indawo yokuqhuma') .

Lolu hlobo lwefeni belulokhu lushayelwa yinjini enebhande ne-pulley.Kodwa-ke, ngokuthuthukiswa kwezilawuli zesivinini ze-elekthronikhi kanye nokutholakala okwengeziwe kwamamotho ashintshwa ngekhompiyutha ('EC' noma ama-brushless), amadrayivu aqondile aya asetshenziswa kakhulu.Lokhu akususi nje kuphela ukungasebenzi kahle okukhona kudrayivu yebhande (okungase kube yinoma yini ukusuka ku-2% kuya ngaphezulu kuka-10%, kuye ngokulungiswa2) kodwa futhi kungenzeka kunciphise ukudlidliza, kunciphise ukugcinwa (amabhodi ambalwa kanye nezidingo zokuhlanza) nokwenza umhlangano. kuhlangene kakhulu.

Abalandeli be-centrifugal abagobile emuva

Abalandeli abagobile emuva (noma 'abathambekele') babonakala ngama-blade atshekela kude nalapho aya khona ukuzungezisa.Angakwazi ukufinyelela ukusebenza kahle okufika ku-90% lapho kusetshenziswa izindwani ze-aerofoil, njengoba kubonisiwe kuMfanekiso 3, noma ngezindwani ezingenalutho ezimise okwezinhlangothi ezintathu, futhi zibe ngaphansi kancane lapho zisebenzisa izindwani ezigobile ezingenalutho, futhi zibe zincane futhi lapho zisebenzisa izindwani ezilula eziyisicaba ezibheke emuva.Umoya ushiya amathiphu e-impeller ngesivinini esiphansi, ngakho-ke ukulahlekelwa kokungqubuzana ngaphakathi kwe-casing kuncane futhi nomsindo okhiqizwa umoya nawo uphansi.Bangase bame ekudluleleni kwejika lokusebenza.Ama-impeller abanzi ngokuqhathaniswa azohlinzeka ngokusebenza ngempumelelo okukhulu, futhi angasebenzisa kalula ama-blade anephrofayili ye-aerofoil.Ama-slim ama-impeller azokhombisa inzuzo encane ngokusebenzisa ama-aerofoil ngakho-ke avame ukusebenzisa amapuleti ayisicaba.Abalandeli abagobile ababuyela emuva baphawuleka kakhulu ngamandla abo okukhiqiza umfutho ophakeme ohlanganiswe nomsindo ophansi, futhi babe nesici samandla angalayishi kakhulu - lokhu kusho ukuthi njengoba ukumelana kuncipha ohlelweni futhi i-flowrate ikhulisa amandla adonswa injini kagesi kuzonciphisa. .Ukwakhiwa kwamafeni agobile emuva kungenzeka kuqine futhi kube nzima kunefeni eligobile elibheke phambili elingasebenzi kahle.Isivinini somoya esinensa uma kuqhathaniswa nama-blades angavumela ukunqwabelana kokungcola (njengothuli namafutha).

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Umfanekiso 3: Umfanekiso wama-centrifugal fan impeller

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Phambili abalandeli be-centrifugal abagobile

Abalandeli abagobile phambili babonakala ngenani elikhulu lama-blade agobile phambili.Njengoba ngokuvamile ekhiqiza izingcindezi eziphansi, mancane, alula futhi ashibhile kunefeni elijikayo elijikayo elinamandla afanayo.Njengoba kuboniswe kuMfanekiso 3 kanye no-4, lolu hlobo lwe-fan impeller luzofaka ama-blade angu-20-plus angaba lula njengokwakhiwa kusuka eshidini elilodwa lensimbi.Ukusebenza okuthuthukisiwe kutholakala ngosayizi abakhulu ngama-blade akhiwe ngamanye.Umoya ushiya amathiphu e-blade ngesivinini esiphezulu se-tangential, futhi la mandla e-kinetic kufanele aguqulwe abe yingcindezi ye-static ku-casing - lokhu kuphazamisa ukusebenza kahle.Ngokuvamile zisetshenziselwa ivolumu yomoya ephansi kuya emaphakathi ngengcindezi ephansi (imvamisa engu-<1.5kPa), futhi zinokusebenza kahle okuphansi okungaphansi kwama-70%.I-scroll casing ibaluleke kakhulu ukuze kuzuzwe ukusebenza kahle kakhulu, njengoba umoya ushiya ichopho lama-blades ngesivinini esikhulu futhi usetshenziselwa ukuguqula ngempumelelo amandla e-kinetic abe ukucindezela okumile.Agijima ngesivinini esiphansi sokuzungezisa, ngakho-ke, amazinga omsindo okhiqizwa ngomshini avamise ukuba ngaphansi kunamafeni ajikele emuva ngesivinini esiphezulu.Ifeni inesici samandla okulayisha ngokweqile uma isebenza ngokumelene nokumelana nesistimu okuphansi.

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Umfanekiso 4: Phambili ifeni eyi-centrifugal egobile enenjini ehlanganisiwe

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Lezi zifeni azifaneleki lapho, isibonelo, umoya ungcoliswe kakhulu uthuli noma uthwele amaconsi kagrisi agxilile.

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Umfanekiso 5: Isibonelo sefeni yepulaki eshayelwa ngokuqondile enama-blade agobele emuva

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Abalandeli be-Radial bladed centrifugal

I-radial bladed centrifugal fan inenzuzo yokukwazi ukuhambisa izinhlayiya zomoya ezingcolile kanye nezingcindezi eziphezulu (nge-oda lika-10kPa) kodwa, isebenza ngesivinini esiphezulu, inomsindo omkhulu futhi ayisebenzi kahle (<60%) futhi akufanele isetshenziselwa inhloso ejwayelekile ye-HVAC.Futhi ihlushwa isici samandla agcwala kakhulu - njengoba ukumelana nesistimu kuncipha (mhlawumbe ngokuvuleka kwama-dampers okulawula ivolumu), amandla emoto azokhuphuka futhi, kuye ngosayizi wemoto, 'angase 'alayishe ngokweqile'.

Xhuma abalandeli

Esikhundleni sokufakwa ku-scroll casing, lezi zigxivizo eziklanyelwe i-centrifugal zingasetshenziswa ngokuqondile ku-casing yeyunithi yokubamba komoya (noma, ngempela, kunoma iyiphi ipayipi noma i-plenum), futhi izindleko zabo zokuqala kungenzeka zibe ngaphansi ahlala abalandeli be-centrifugal.Kwaziwa ngokuthi 'i-plenum', 'ipulaki' noma abalandeli be-centrifugal 'abangekho endlini', lezi zingahlinzeka ngezinzuzo ezithile zesikhala kodwa ngentengo yokulahleka kokusebenza kahle (ngokusebenza ngendlela encomekayo efana naleyo yabalandeli be-centrifugal abafakwe ngaphambili abagobile).Abalandeli bazodonsa umoya nge-inlet cone (ngendlela efanayo neyefeni elihlala endlini) kodwa bese bekhipha umoya ngokuzungeza wonke umjikelezo wangaphandle ongu-360° we-impeller.Anganikeza ukuguquguquka okukhulu kokuxhumeka kwe-outlet (kusuka ku-plenum), okusho ukuthi kungase kube nesidingo esincane sokugoba okuseduze noma izinguquko ezibukhali kumbhobho ezingase zengeze ekwehleni kwengcindezi yesistimu (futhi, ngalokho, namandla engeziwe efeni).Ukusebenza kahle kwesistimu sekukonke kungase kuthuthukiswe ngokusebenzisa ukungena komlomo we-bell emiseleni eshiya i-plenum.Enye yezinzuzo ze-plug fan ukusebenza kwayo kwe-acoustic okuthuthukisiwe, okubangelwa kakhulu ukumuncwa komsindo ngaphakathi kwe-plenum kanye nokuntuleka kwemizila 'yokubona okuqondile' kusukela ku-impeller kuya emlonyeni we-ductwork.Ukusebenza kahle kuzoncika kakhulu endaweni ye-fan ngaphakathi kwe-plenum kanye nobudlelwano be-fan endaweni yayo - i-plenum isetshenziselwa ukuguqula amandla e-kinetic emoyeni futhi ngaleyo ndlela kukhuphule ingcindezi emile.Ukusebenza okuhluke kakhulu kanye nokuzinza okuhlukile kokusebenza kuzoncika ohlotsheni lwe-impeller - ama-impellers okugeleza okuxubile (okunikeza inhlanganisela yokugeleza kwe-radial ne-axial) asetshenziselwe ukunqoba izinkinga zokugeleza okuvela kuphethini enamandla yokugeleza komoya ye-radial edalwe kusetshenziswa ama-centrifugal impellers3.

Kumayunithi amancane, ukwakheka kwawo okuhlangene kuvame ukupheleliswa kusetshenziswa amamotho e-EC alawuleka kalula.

Abalandeli be-Axial

Kubalandeli be-axial flow, umoya udlula ku-fan ngokuhambisana ne-axis of rotation (njengoba kuboniswe ku-fan ye-axial ye-tube elula yoMfanekiso 6) - ukucindezela okukhiqizwa i-aerodynamic lift (efana nephiko lendiza).Lokhu kungase kube ukubumbana ngokuqhathaniswa, izindleko eziphansi kanye nesisindo esincane, ikakhulukazi ezifanele ukuhamba komoya ngokumelene nezingcindezi eziphansi, ngakho-ke zivame ukusetshenziswa ezinhlelweni zokukhipha lapho ukwehla kwengcindezi kuphansi kunezinhlelo zokuhlinzeka - ukunikezwa ngokuvamile kufaka phakathi ukwehla kwengcindezi yazo zonke izimo zomoya. izingxenye kuyunithi yokusingatha umoya.Lapho umoya ushiya i-axial fan elula, uzobe ujikeleza ngenxa yokujikeleza okunikezwa emoyeni njengoba udlula ku-impeller - ukusebenza kwe-fan kungase kuthuthukiswe kakhulu ngama-downstream guide vanes ukuze abuyisele i-swirl, njengase-vane. I-axial fan eboniswe kuMfanekiso 7. Ukusebenza kahle kwefeni ye-axial kuthintwa ukuma kwe-blade, ibanga eliphakathi kwesihloko se-blade nekesi elizungezile, kanye nokululama kwe-swirl.I-pitch ye-blade ingashintshwa ukuze ihluke ngokuphumelelayo ukuphuma kwefeni.Ngokuhlehlisa ukujikeleza kwabalandeli be-axial, ukugeleza komoya nakho kungahlehliswa - nakuba ifeni izoklanywa ukuthi isebenze endaweni eyinhloko.

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Umfanekiso 6: I-tube axial flow fan

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Ijika lesici labalandeli be-axial linendawo yokudayisa engabenza bangafaneleki kumasistimu anebanga elibanzi lemibandela yokusebenza, nakuba benenzuzo yesici samandla angalayishi kakhulu.

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Umfanekiso 7: I-vane axial flow fan

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Abalandeli be-Vane axial bangakwazi ukusebenza kahle njengabalandeli be-centrifugal abagobile emuva, futhi bayakwazi ukukhiqiza ukugeleza okuphezulu ngengcindezi efanele (imvamisa ezungeze u-2kPa), nakuba kungenzeka badale umsindo owengeziwe.

I-mix flow fan iwukuthuthuka kwe-axial fan futhi, njengoba kukhonjisiwe kuMfanekiso 8, inomshini omise okwe-conical lapho umoya udonswa khona ngemisebe eyandayo bese udlula nge-axial kuma-vanes okuqondisa okuqondisayo.Isenzo esihlanganisiwe singakhiqiza ingcindezi ephakeme kakhulu kunalokho okungenzeka nabanye abalandeli be-axial flow.Ukusebenza kahle namazinga omsindo angafana nalawo efeni elingemuva lejika eliphakathi.

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Umfanekiso 8: Ifeni elingaphakathi komugqa wokugeleza okuxubile

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Ukufakwa kwefeni

Imizamo yokuhlinzeka ngesixazululo esisebenzayo sabalandeli ingase ibukeke phansi kakhulu ubuhlobo phakathi kwabalandeli nezindlela zendawo ezixhunywe emoyeni .

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Isikhathi sokuthumela: Jan-07-2022