Ijika elijwayelekile lokusebenza le-axial flow fan liboniswa emfanekisweni:
Ijika lokucindezela line-hump, njengendawo yokusebenza endaweni efanele ye-hump, isimo sokusebenza kwabalandeli sizinzile;Uma indawo yokusebenza isendaweni yesokunxele ye-hump, isimo sokusebenza se-fan sinzima ukuzinza.Ngalesi sikhathi, ingcindezi yomoya nokugeleza kuyashintshashintsha.Lapho indawo yokusebenza iya kwesokunxele esingezansi, ukugeleza nokucindezela komoya kuba nokushaya ngamandla, futhi kubangela ukuba ifeni yonke iqhume.Iyunithi yabalandeli ingase yonakaliswe ukuhlinza, ngakho-ke ifeni ayivunyelwe ukusebenza ngaphansi kwesimo sokuhlinzwa.Ukuze ugweme ukuqhuma kwe-fan ngesilinganiso esincane sokugeleza, ukuguqulwa kokuguqulwa kwemvamisa kwe-fan kuyisinqumo sokuqala, futhi lapho ukuguqulwa kwesivinini se-fan kungadluli ama-20%, ukusebenza kahle akushintshi, ukusetshenziswa kwemvamisa. ukulawulwa kwejubane lokuguqulwa kungenza ifeni esigabeni esincane sokugeleza isebenze ngempumelelo, ngeke nje yenze ukukhuphuka kwabalandeli, kodwa futhi yandise ukusebenza okusebenzayo kohla lwabalandeli.
I-ventilator eyinhloko isetshenziswa ngokuvama kwamandla, futhi umthamo wokungenisa umoya ngokuvamile ulungiswa ngokushintsha i-Angle ye-guide vane kanye nepuleti le-baffle phakathi nokusebenza.Ngakho-ke, ukusebenza kahle kokukhipha umoya kuphansi, okuholela ekumoshweni kwamandla nokwandisa izindleko zokukhiqiza.Ngaphezu kwalokho, ngenxa yomkhawulo omkhulu wokuklama we-ventilator eyinhloko, i-ventilator eyinhloko ibilokhu isebenza ngaphansi komthwalo omncane isikhathi eside, futhi ukuchithwa kwamandla kuvelele.
Lapho umshayeli oyinhloko esebenzisa ukusabela kokuqala, isikhathi sokuqala side futhi ukuqala kwamanje kukhulu, okuyingozi enkulu ekufakweni kwe-motor, futhi kushise imoto ezimweni ezimbi kakhulu.Into eyenzeka nge-uniaxial torque yemoto enamandla kagesi ephezulu ngesikhathi iqala yenza ifeni ikhiqize ingcindezi yokudlidliza eyimishini, ethinta kakhulu impilo yesevisi yemoto, ifeni neminye imishini.
Ngokucabangela izizathu ezingenhla, kungcono ukusebenzisaimvamisaguqularukulungisa umthamo womoya we-ventilator eyinhloko.
I-voltage ephezuluimvamisaisiguquli ekhiqizwe i-Noker Electric ithatha isivinini esikhulu se-DSP njengesimo esilawulayo, ayisebenzisi ubuchwepheshe bokulawula i-velocity kanye nochungechunge lobuchwepheshe beyunithi yamandla amaningi.Ingeye-high-voltage high-voltage type frequency converter, inkomba yayo ye-harmonic iphansi kune-Harmonic standard ye-IEE519-1992, enesici esiphezulu samandla okufakwayo kanye nekhwalithi enhle yokuphuma kwamagagasi.Asikho isidingo sokusebenzisa isihlungi se-harmonic okokufaka, idivayisi yesinxephezelo sesici samandla nesihlungi esiphumayo;Ayikho i-harmonic ebangelwa ukufudumeza okwengeziwe kwe-motor kanye ne-torque ripple, umsindo, i-dv/dt ephumayo, i-voltage yemodi evamile nezinye izinkinga, ungasebenzisa i-asynchronous motor evamile.
Ngokwesimo sangempela sesizinda somsebenzisi, ikhabhinethi ye-bypass yamukela uhlelo lokuguqulwa kwe-othomathikhi ye-othomathikhi kagandaganda owodwa.Njengoba kuboniswe esithombeni esingezansi.Ekhabetheni le-bypass, kukhona amaswishi amabili aphezulu wokuhlukanisa ama-voltage aphezulu kanye nama-vacuum contactor amabili.Ukuqinisekisa ukuthi awekho amandla abuyiselwa emuva ekugcineni kokuphumayo kwesiguquli, i-KM3 ne-KM4 zixhumene ngogesi.Uma i-K1, i-K3, i-KM1 ne-KM3 ivaliwe futhi i-KM4 inqanyuliwe, injini igijima ngokuguqulwa kwamaza;Uma i-KM1 ne-KM3 inqanyuliwe futhi i-KM4 ivaliwe, imvamisa yamandla enjini iyasebenza.Ngalesi sikhathi, i-converter ye-frequency ihlukanisiwe ne-voltage ephezulu, elungele ukulungiswa, ukugcinwa nokulungiswa kwamaphutha.
Ikhabethe le-bypass kufanele lixhunywe ne-high voltage circuit breaker DL.Uma i-DL ivaliwe, ungasebenzisi iswishi yokuhlukanisa okuphumayo kwe-inverter ukuze uvimbele ukudonsa i-arc futhi uqinisekise ukuphepha kwama-opharetha nezinto zokusebenza.
IIsivinini Esiguquguqukayo samandla kagesi amaphakathiIyashayela ibisebenza ngokuzinza selokhu yaqala ukusebenza, imvamisa yokuphumayo, i-voltage kanye nezamanje zizinzile, isiphephetha-moya sisebenza ngokuzinzile, isici samandla esilinganisiwe sohlangothi lwenethiwekhi yesiguquli se-frequency ngu-0.976, ukusebenza kahle kungaphezulu kuka-96%, umthamo ophelele we-harmonic yamanje yohlangothi lwenethiwekhi ingaphansi kuka-3%, futhi i-harmonic yamanje ephumayo ingaphansi kuka-4% lapho ilayisha ngokugcwele.I-fan igijima ngesivinini esiphansi kunejubane elilinganiselwe, elingagcini nje kuphela amandla, linciphisa izindleko zokulungisa, kodwa futhi linciphisa umsindo wefeni, futhi lithola umphumela omuhle wokusebenza kanye nenzuzo yezomnotho.
Isikhathi sokuthumela: Apr-07-2023