Explosion-proof Makina osinthika amtundu wamagetsi sakhala osankha m'mafakitale, migodi ya malasha, kapena malo oyenga mafuta—ndiwo kusiyana pakati pa kugwira ntchito mosalekeza ndi kuzimitsa koopsa. Tawona malo akutaya magawo atatu opangira chifukwa chamagetsi amakupiza pakuzindikira kwa gasi. Ena adalowa m'malo mwa ma VFD okhazikika kawiri m'miyezi 18 - kungozindikira chomwe chimayambitsa sikunali kukonza mapulogalamu kapena kutchingira chingwe, koma kusagwirizana kwakukulu pakati pa kalasi yotchinjiriza zamagalimoto, kuchuluka kwa mpanda, ndi kuzungulira kwa ntchito zenizeni. Ku Zibo Hongcheng Fan Co., Ltd., timapanga ma motors otha kuphulika omwe sangafanane ndi magawo odziyimira okha, koma monga ma node ophatikizika owongolera mpweya - opangidwa kuchokera kumapiringidzo kupita ku nyumba kuti agwirizane ndi GB 3836.1-2021 (China's Ex standard), IEC 60079-0, ndi zofunikira zamafakitale 51D 2021 IEEcom patibility VP1D malire.
Chifukwa chiyani ma VFD Motors Amalephereka M'malo Owopsa—Ngakhale Ndi Zolemba za "Ex".
Ogwiritsa ntchito ambiri amaganiza kuti chizindikiro "chosaphulika" chimatsimikizira kuti VFD ikugwira ntchito bwino. Sizikutero. Galimoto yovomerezeka ya static Ex d IIB T4 ikhoza kutenthedwa kwambiri pansi pa 30 Hz PWM voltage stress, kuwononga kutsekemera kwa Class H mofulumira kuposa momwe matenthedwe amanenera. Tayeza kutentha kwa rotor pamwamba pa 42 ° C pamwamba pa nameplate pa 25 Hz m'malo omata - okwanira kutulutsa vanishi ndikuyambitsa zolakwika. Choyipa kwambiri: mawonekedwe osakhala a sinusoidal amawonjezera kuwonongeka kwa eddy m'malo osayaka moto, kukweza kutentha kwa pamwamba kupitilira malire a T. Ichi ndichifukwa chake mndandanda wathu wamagalimoto osagwirizana ndi kuphulika umayamba ndi ma stator-certified stator windings-Class H insulation *plus* reinforced slot liners to high dv/dt transients—ndi nyumba zomangidwa mpaka ± 0.05 mm concentricity kupewa mafunde obwera chifukwa cha voteji wamba.
Kuphatikizika Kwadziko Lonse: Zomwe Injiniya Wanu Ayenera Kudziwa
Kugwirizana kwa VFD sikukhudza ma curve a torque-ndi za kupulumuka kwa ma elekitiroma. Makina athu amtundu wa FBD(DⅠ) omwe amatha kuphulika amaphatikiza zosefera zomangidwa mu RFI zomwe zidavotera chitetezo cha 4 kV komanso mawaya otetezedwa amkati othamangitsidwa kutali ndi zitsogozo zamagetsi. Koma kuphatikiza kumalephera nthawi zambiri pamawonekedwe: malo oyambira olakwika, zingwe zotsekera zosatetezedwa zomwe zimayenderana ndi ma lead, kapena ma frequency onyamula a VFD omwe amakhala pamwamba pa 8 kHz m'malo otsekeka pomwe mafunde owoneka amakulitsa ma spikes amagetsi. Timapereka zida zonse zoyankhulirana - kuphatikiza ma ferrite cores, zoyambira pansi, ndi zosinthira 1: 1 zodzipatula pamabwalo oyankha - osati monga zowonjezera, koma ngati magawo ofunikira a dongosolo. Pamene makina oyeretsera ku Shandong adachepetsa nthawi yosakonzekera ndi 73%, kusintha sikunali injini yokhayo. Zinali kukakamiza kukhazikika kwa mfundo imodzi ndikuyika njira yathu yoyeserera ya 12-pulse rectifier kuti tidule THD pansi pa 5% pama terminals.
Kusintha Mwamakonda Omwe Simasokoneza Chitsimikizo
"Kodi mutha kuyipanga kuti isawonongeke *ndi* kuti isachite dzimbiri *ndipo* imathamanga pa 110°C mozungulira?" Inde, koma pokhapokha ngati njira zakuthupi, zoziziritsa, ndi ziphaso zikugwirizana. Nyumba za titaniyamu zimalimbana ndi dzimbiri za H₂S koma sizimatenthetsa bwino; timathetsa izi ndi ma axial fin arrays ophatikizika ndi ma ducting a mpweya wokakamiza omwe amasunga kutentha kwa T3 pamtunda ngakhale pa 100% katundu mu 55 ° C yozungulira. Kwa mafani a desulfurization omwe akugwira gasi wonyowa, timayika zomangira zamkuwa zokutidwa ndi epoxy *ndipo* timatchula zomangira zitsulo zosapanga dzimbiri zokhala ndi ziphaso za passivation—osati zolemba zokha. Chigawo chilichonse chachizolowezi chimayesedwa ndi kutenthedwa kwathunthu pamagetsi 105% kwa maola 72 mkati mwa chipinda chathu choyesera cha Class II Zone 1, ndikuwunika kwa thermographic mphindi 15 zilizonse. Palibe njira zazifupi. Palibe zida "zofanana". Palibe kuchedwa kwa chiphasonso.
Kusankha Bwino Kumatanthauza Kufunsa Mafunso Oyenera Choyamba
- Kodi mafupipafupi anu ogwiritsira ntchito ndi otani? Kuthamanga pansi pa 20 Hz kumafuna kuziziritsa kwapadera-mitundu yathu yotsika kwambiri imagwiritsa ntchito zowuzira zakunja zokhala ndi mphamvu zodziyimira pawokha, osati mafani okhala ndi shaft omwe amayimilira pa RPM yotsika.
- Ndi ma harmonics ati omwe amalamulira gridi yanu? Ngati tsamba lanu lili ndi ng'anjo yolemera ya arc, ma motors athu amaphatikiza ma stator laminations opangidwa ndi ma harmonic kuti atseke 5th ndi 7th resonance.
- Kodi iyenera kuyambiranso mwachangu bwanji pambuyo pochotsa zolakwika? Mpweya wa mpweya wa malasha umafunika ≤3-sekondi imodzi kuchira - timagwirizanitsa mabanki a capacitor omwe amasunga chisangalalo cham'munda panthawi ya zododometsa zazing'ono.
- Kodi kukonza kumachitika kuti? Mabokosi athu okhazikika amalola kuyesa kukana kwathunthu popanda kutsegula cholumikizira chamoto - ndikofunikira ngati ntchito yotentha imaloleza kuletsa nthawi yofikira.
Sitigulitsa magalimoto. Timapereka chitsimikizo chotsimikizika chakuyenda kwa mpweya. Galimoto iliyonse yamagetsi yamagetsi yotsimikizira kuphulika imachoka pamalo athu a Zibo okhala ndi lipoti loyeserera lomwe likuwonetsa kusalingana kwapakali pano (<2%), matalikidwe a vibration (<1.8 mm/s RMS), ndi kukwera kwa kutentha kwapamtunda pansi pa kupsinjika kwa mafunde a VFD. Umu ndi momwe kudalirika kumapangidwira - osalonjezedwa. Pitani https://www.hongchengfan.com pazidziwitso zaukadaulo, zolemba zamakina ofananira ndi VFD-motor, komanso mwayi wopita kwa mainjiniya omwe atchulapo madera owopsa a 2,100 kuyambira 2020.
