Explosion-proof amasistimu enjini ashintshashintshayo awanawo ukuzikhethela ezitshalweni zamakhemikhali, ezimayini zamalahle, noma ezindaweni zokuhluza uwoyela—awumehluko phakathi kokusebenza okuqhubekayo nokuvalwa okuyinhlekelele. Sibone izikhungo zilahlekelwa amashifu amathathu okukhiqiza ngenxa yokuthi injini yabalandeli ikhubeke ngesikhathi kutholwa igesi eguquguqukayo. Abanye bathathe indawo yama-VFD ajwayelekile kabili ezinyangeni eziyi-18—ukuthola kuphela umnyombo bekungekhona ukulungisa isofthiwe noma ukuvikela ikhebula, kodwa ukungqubuzana okuyisisekelo phakathi kwesigaba sokufakwa kwezimoto, isilinganiso sendawo ebiyelwe, nemijikelezo yomsebenzi wangempela womhlaba. E-Zibo Hongcheng Fan Co., Ltd., siklama amamotho ashintshashintshayo afakazela ukuqhuma hhayi njengezingxenye ezizimele, kodwa njengama-node ahlanganisiwe okulawula ukugeleza komoya—akhiwe ukusuka emaphethelweni kuya ezindlini ukuze ahambisane kanyekanye ne-GB 3836.1–2021 (China's Ex standard), IEC 60079-0, kanye nezimfuneko ze-industrial harmpatibility 51D 29D IEEcompatibility 29 IEEcom. imikhawulo.
Kungani Ama-Standard VFD Motors Ehluleka Ezindaweni Eziyingozi—Ngisho Namalebula “Ex”
Abasebenzisi abaningi bacabanga ukuthi ilebula “yobufakazi bokuqhuma” iqinisekisa ukusebenza okuphephile kwe-VFD. Ayikwenzi. Injini egunyazwe izimo ezimile ze-Ex d IIB T4 ingase ishise ngaphansi kwengcindezi kagesi engu-30 Hz PWM, yehlise isithunzi se-Class H ngokushesha kunalokho okubikezelwa ukumodela okushisayo. Sikale izinga lokushisa le-rotor engu-42°C ngaphezu kwe-nameplate ku-25 Hz ezindaweni zomhubhe ovalekile—okwanele ukwenza ivanishi ye-carbonize futhi ibangele amaphutha aphansi. Okubi nakakhulu: ama-waveform angewona ama-sinusoidal akhulisa ukulahlekelwa kwamanje kwe-eddy ezindaweni ezivalekile ezingashi, akhuphule izinga lokushisa elingaphezulu kwemingcele yesilinganiso se-T. Kungakho uchungechunge lwethu lwezithuthuthu eziguquguqukayo ezinobufakazi bokuqhuma luqala ngamawindi e-stator aqinisekiswe kabili—ukufakwa kwe-Class H *plus* ama-slot liner aqinisiwe amelana nezinguquko eziphakeme ze-dv/dt—kanye nezindlu ezifakwe ngomshini zibe ± 0.05 mm ukugxila ukuze kuvinjelwe amaza okuzala abangelwa amandla kagesi emodi evamile.
Ukuhlanganiswa Komhlaba Wangempela: Lokho Unjiniyela Wakho Olawulayo Odinga Ukukwazi
Ukuhambisana kwe-VFD akuphathelene namajika etorque—imayelana nokuphila kazibuthe kagesi. Uchungechunge lwethu lwe-FBD(DⅠ) lwamamothoni ashintshashintshayo afakazela ukuqhuma afaka izihlungi ze-RFI ezakhelwe ngaphakathi ezilinganiselwe ukungatheleleki kokuhlinzwa okungu-4 kV kanye nezintambo zangaphakathi ezivikelekile ezisuselwe kude nemikhondo yamandla. Kodwa ukuhlanganisa kwehluleka kaningi kusixhumi esibonakalayo: i-topology eyisisekelo engalungile, izintambo zokufaka ikhodi ezingavinjiwe ezisebenza ngokufana nezinsimbi zokuhola, noma amaza e-VFD yesithwali asethwe ngaphezu kuka-8 kHz ezikhaleni ezivalekile lapho amagagasi abonisiwe ekhulisa ama-voltage spikes. Sinikezela ngamakhithi okusebenza agcwele—okuhlanganisa ama-ferrite cores, ama-grounding lugs, nama-transformer ahlukanisayo angu-1:1 kumasekhethi empendulo—hhayi njengezengezo, kodwa njengezingxenye eziyisibopho zokucaciswa kwesistimu. Lapho indawo yokucwenga eShandong inciphisa isikhathi sokuphumula esingahlelelwe ngo-73%, uguquko kwakungeyona injini ngokwayo. Bekuphoqelela ukubekwa phansi kwephuzu elilodwa kanye nokufaka inketho yethu ehlolwe ngaphambilini ye-12-pulse rectifier ukusika iTHD ibe ngaphansi kuka-5% kumatheminali ezimoto.
Ukwenza Ngokwezifiso Okungafaki Ebucayini Isitifiketi
“Ungakwazi ukulenza livikeleke ekuqhumeni *kanye* limelane nokugqwala *futhi* ligijime ku-110°C ku-ambient?” Yebo—kodwa kuphela uma izindlela ezibonakalayo, zokupholisa, nezitifiketi zihambisana. Izindlu ze-Titanium zimelana nokugqwala kwe-H₂S kodwa zihambisa ukushisa kabi; sixazulula lokhu ngama-axial fin arrays adidiyelwe kanye nokudonsa komoya okuphoqelekile okugcina izinga lokushisa eliphezulu le-T3 ngisho nakumthwalo ongu-100% ku-ambient engu-55°C. Kubalandeli be-desulfurization abaphatha igesi yoflue emanzi, sishumeka amawindi e-copper coated epoxy-coated *futhi* sicacisa izibophelelo zensimbi engagqwali ezinezitifiketi zokudlula—hhayi nje izimpawu zebanga. Yonke iyunithi yangokwezifiso ihlolwa ngokushisa komthwalo ogcwele ngo-105% olinganiselwe amahora angama-72 ngaphakathi kwegumbi lethu lokuhlola le-Class II Zone 1, ngokuqapha kwe-thermographic njalo ngemizuzu eyi-15. Azikho izinqamuleli. Azikho izinto "ezilinganayo". Akukho ukubambezeleka kokuphinda uthole isitifiketi.
Ukukhetha Okulungile Kusho Ukubuza Imibuzo Elungile Kuqala
- Ingakanani imvamisa yakho encane yokusebenza? Ukugijima ngaphansi kuka-20 Hz kudinga ukupholisa okukhethekile—amamodeli ethu anesivinini esiphansi asebenzisa izifutha zangaphandle ezinamandla azimele, hhayi amafeni afakwe ku-shaft ahlala ku-RPM ephansi.
- Imaphi ama-harmonics abusa igridi yakho? Uma isayithi lakho linemithwalo esindayo yesithando somlilo se-arc, izinjini zethu zihlanganisa ama-harmonic-tuned stator laminations ukucindezela i-resonance yesi-5 neyesi-7.
- Kufanele iqale kabusha ngokushesha kangakanani ngemuva kokususwa kwephutha? Ukungena komoya emayini yamalahle kudinga ukutholwa kwemizuzwana engu-≤3-sihlanganisa amabhange e-capacitor agcina injabulo yasensimini phakathi nokuphazamiseka okuncane.
- Isondlo senzeka kuphi? Amabhokisi ethu etheminali e-modular avumela ukuhlolwa okugcwele kokumelana nokufakwa ngaphandle kokuvula ijoyinti elingashi—okubalulekile uma umsebenzi oshisayo uvumela ukukhawulela isikhathi sokufinyelela.
Asizithengisi izinjini. Siletha isiqinisekiso sokugeleza komoya esiqinisekisiwe. Yonke i-frequency engakwazi ukuqhuma injini ishiya indawo yethu ye-Zibo nombiko wokuhlola olandelekayo obonisa ukungalingani kwamanje okungalayishiwe (<2%), i-amplitude yokudlidliza (<1.8 mm/s RMS), kanye nokukhuphuka kwezinga lokushisa ngaphansi kwengcindezi yokulingiswa kwegagasi le-VFD. Yileyo ndlela ukwethembeka kwakhiwa ngayo-akuthenjisiwe. Vakashela https:/www.hongchengfan.com kumadatha edatha okusebenza, amanothi ohlelo lokusebenza okufaniswa kwe-VFD-motor, kanye nokufinyelela okuqondile konjiniyela bezinhlelo zokusebenza abacacise ukufakwa kwendawo eyingozi engaphezu kuka-2,100 kusukela ngo-2020.
