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 yesobunxele ye-hump, isimo sokusebenza somlandeli kunzima ukuzinza.Ngalesi sikhathi, ingcindezi yomoya nokugeleza kuyashintshashintsha.Lapho indawo yokusebenza iya kwesokunxele esingezansi, ukugeleza nokucindezela komoya kuba nokushaya ngamandla, futhi kubangela ukuthi yonke ifeni 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 kumele lixhunywe ne-high voltage circuit breaker DL.Uma i-DL ivaliwe, ungasebenzisi iswishi yokuhlukanisa i-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% uma 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