I-fan iwuhlobo lwemishini esetshenziselwa ukucindezela nokuthutha igesi. Ngokombono wokuguqulwa kwamandla, kuwuhlobo lwemishini eguqula amandla emishini yesiguquli esiyinhloko sibe amandla egesi.
Ngokomgomo wokuhlukaniswa kwesenzo, abalandeli bangahlukaniswa babe:
· I-Turbofan – isiphephetha-moya esicindezela umoya ngama-blade ajikelezayo.
· Isiphephetha-moya esihle - umshini ocindezela futhi uthuthe igesi ngokushintsha umthamo wegesi.
Kuhlukaniswa ngokwesiqondiso sokugeleza komoya:
· Ifeni ye-Centrifugal - Ngemva kokuba umoya ungene ku-impeller ye-fan nge-axially, ucindezelwa ngaphansi kwesenzo samandla we-centrifugal futhi ugeleza ngokuyinhloko ngendlela ye-radial.
· I-Axial-flow fan – Umoya ugeleza u-axial ungene esiphasejini se-blade ejikelezayo. Ngenxa yokuxhumana phakathi kwe-blade negesi, igesi iyacindezelwa futhi igeleza cishe ku-axial direction endaweni ye-cylindrical.
· i-mix-flow fan – Igesi ingena endaweni ephendukayo nge-Engeli eya ku-shaft eyinhloko futhi igeleza cishe eduze kwekhoni.
· I-Cross-flow fan - igesi idlula i-blade ejikelezayo futhi yenziwa nge-blade ukwandisa ukucindezela.
Ukuhlukaniswa ngokucindezela kokukhiqiza okuphezulu noma okuphansi (kubalwa ngokucindezela okuphelele):
I-Ventilator - ingcindezi yokukhipha ngezansi kwe-112700Pa;
· I-blower - ingcindezi yokukhipha ingcindezi isuka ku-112700Pa iye ku-343000Pa;
I-compressor - ingcindezi yokukhipha ngaphezu kuka-343000Pa;
Ukuhlukaniswa okuhambisanayo kwengcindezi ephezulu nephansi yabalandeli kungokulandelayo (kwisimo esijwayelekile) :
· Umfutho ophansi wefeni ye-centrifugal: ingcindezi egcwele P≤1000Pa
· Ifeni ye-centrifugal enengcindezi emaphakathi: ingcindezi egcwele P=1000~5000Pa
· Umfutho ophezulu wefeni ye-centrifugal: ingcindezi egcwele P=5000~30000Pa
· Umfutho ophansi we-axial flow fan: ingcindezi egcwele P≤500Pa
· Umfutho ophezulu we-axial flow fan: ingcindezi egcwele P=500~5000Pa
Indlela yokuqamba abalandeli be-centrifugal:
Isibonelo: 4-79NO5
Indlela yemodeli nesitayelale:
Isibonelo: YF4-73NO9C
Ukucindezela kwefeni ye-centrifugal kubhekisela ekucindezelweni kwe-boost (okuhlobene nokucindezela komkhathi), okungukuthi, ukwanda komfutho wegesi kufeni noma umehluko phakathi kwengcindezi yegesi endaweni yokungena nokuphuma kwefeni. . Inokucindezela okumile, ukucindezela okuguquguqukayo nokucindezela okuphelele. Ipharamitha yokusebenza ibhekisela ekucindezelweni okuphelele (okulingana nomehluko phakathi kwengcindezi ephelele ye-outlet yabalandeli kanye nokucindezela okuphelele kwe-fan inlet), futhi iyunithi yayo ivame ukusetshenziswa i-Pa, KPa, mH2O, mmH2O, njll.
Ukugeleza:
Ivolumu yegesi egeleza kufeni ngesikhathi seyunithi ngayinye, eyaziwa nangokuthi umthamo womoya. Okuvame ukusetshenziswa u-Q ukumela, iyunithi evamile ithi; m3/s, m3/min, m3/h (imizuzwana, imizuzu, amahora). (Ngezinye izikhathi futhi kusetshenziswa “ukugeleza kwenqwaba” okungukuthi, isisindo segesi egeleza kufeni ngesikhathi seyunithi ngayinye, kulokhu kudingeka kucatshangelwe ukuminyana kwegesi yendawo engenisa umoya, kanye nokwakheka kwegesi, ukucindezela komkhathi wendawo, izinga lokushisa legesi, ingcindezi yokungena. unomthelela osondelene, udinga ukuguqulwa ukuze uthole "ukugeleza kwegesi" okwejwayelekile.
Isivinini sokuzungeza:
Isivinini sokujikeleza kwefeni. Ivamise ukuvezwa ngo-n, futhi iyunithi yayo ithi r/min(r ikhombisa isivinini, iminithi ikhombisa umzuzu).
Amandla:
Amandla adingekayo ukushayela ifeni. Ivamise ukuvezwa njengo-N, kanti iyunithi yayo ithi Kw.
Ikhodi evamile yokusebenzisa abalandeli
Imodi yokudlulisa nokusebenza kahle kwemishini:
Imingcele evamile yabalandeli, izidingo zobuchwepheshe
Ifeni yokungenisa umoya evamile: ukucindezela okugcwele P=… .Pa, ithrafikhi Q=… m3/h, ukuphakama (ukucindezela komkhathi wendawo), imodi yokudlulisela, i-avareji yemaphakathi (umoya awukwazi ukubhalwa), ukuzungezisa i-impeller, i-inlet kanye ne-engeli yokuphuma (kusuka ku- motor end), izinga lokushisa elisebenzayo T=… ° C (izinga lokushisa legumbi alinakubhalwa), imodeli yemoto…… .. linda.
Abalandeli bezinga lokushisa eliphezulu nabanye abalandeli abakhethekile: ukucindezela okugcwele P=… Pa, flow Q=… m3/h, ukuminyana kwegesi engenisiwe Kg/m3, imodi yokudlulisela, indawo yokudlulisa (umoya ingase ingabhalwa), ukuzungezisa impeller, i-engeli yokungena ne-outlet (kusukela ekugcineni kwenjini), izinga lokushisa elisebenzayo T=….. ℃, izinga lokushisa eliphakeme kakhulu elisheshayo T=… ° C, ukuminyana kwegesi evela kwamanye amazwe □Kg/m3, ukucindezela komkhathi wendawo (noma izinga lolwandle lendawo), ukugcwala kothuli, umnyango olawula ifeni, imodeli yemoto, ijoyinti lokunweba lokungenisa nokuthekelisa, isisekelo sisonke, i-hydraulic coupling (noma i-frequency converter, isiqalisi sokumelana noketshezi), isiteshi sikawoyela esincanyana, idivayisi ejika kancane, i-actuator, ikhabhinethi yokuqala, ikhabethe lokulawula... .. linda.
Izinyathelo zokuphepha zejubane eliphezulu zabalandeli (B, D, C drive)
·4-79 uhlobo: 2900r/min ≤NO.5.5; 1450 r/min ≤NO.10; 960 r/min ≤NO.17;
·4-73, 4-68 uhlobo: 2900r/min ≤NO.6.5; 1450 r/min ≤15; 960 r/min ≤NO.20;
Umlandeli uvame ukusebenzisa ifomula yokubala (eyenziwe yaba lula, cishe, ukusetshenziswa okuvamile)
Ukuphakama kuguqulwa kungcindezi yendawo yomkhathi
(760mmHg)-(izinga lolwandle ÷12.75)= umfutho wendawo womkhathi (mmHg)
Qaphela: Ukuphakama ngaphansi kuka-300m Angeke kulungiswe.
·1mmH2O=9.8073Pa;
·1mmHg=13.5951 mmH2O;
·760 mmHg=10332.3117 mmH2O
· Ukugeleza kwabalandeli 0 ~ 1000m ekuphakameni kolwandle akukwazi ukulungiswa;
· 2% izinga lokugeleza ekuphakameni okungu-1000 ~ 1500M;
· 3% izinga lokugeleza ekuphakameni okungu-1500 ~ 2500M;
· Ukukhishwa okungu-5% ezingeni lolwandle ngaphezu kuka-2500M.
Ns:
Isikhathi sokuthumela: Aug-17-2024