Thaum lub 4500kW synchronous lub cev muaj zog ntawm koj lub grate zeb mus ncig ua si thaum 2 teev sawv ntxov, koj muaj ob txoj kev xaiv: rov pib qhov muag tsis pom thiab pheej hmoo rau $ 340,000 rov qab, lossis kaw thiab poob 8 teev ntawm kev xa tawm. Lub cev muaj zog uas koj tau teev tseg txiav txim siab qhov kev xaiv uas koj muaj tiag tiag.
Qhov loj Synchronous lub cev muaj zog ua tau tiag tiag
Lub cev muaj zog synchronous loj yog AC lub cev muaj zog uas nws lub rotor xauv rau cov khoom siv zaus - 1500 RPM ntawm 50Hz, 1800 RPM ntawm 60Hz - tsis hais txog kev thauj khoom. Lub cev muaj zog induction swb 1-4% nyob rau hauv load. Lub cev muaj zog synchronous tsis.
Rau cov pas nrig zeb ua cov ore nyuaj zones uas kos 20% ntau torque, qhov no txhais tau hais tias qhov sib txawv ntawm qhov ruaj khov throughput thiab 6 -8% poob rau hauv grind tus nqi. Lub rotor nqa lub DC teb winding pub los ntawm brushless exciter los yog zoo li qub excitation system, uas yog vim li cas synchronous motors muaj peev xwm muab reactive zog rau cov nroj tsuag - induction motors tsuas haus nws.
5 Parameters uas cais lub 20-xyoo lub cev muaj zog los ntawm 5-xyoo teeb meem
Parameter Nug tus neeg muag khoom Standard reference
Pib torque Ntau dua lossis sib npaug li 40% nyob ntawm 0Hz? IEC 60034-12 (ib chav kawm)
Rwb thaiv tsev chav F (155 degree) lossis H (180 degree)? IEC 60085 Kev faib tawm thermal
Kev vibration qib B (tsawg dua lossis sib npaug li 2.8mm / s) lossis Qib C (tsawg dua lossis sib npaug li 4.5mm / s)? ISO 10816-3
Exciter hom Brushless lossis zoo li qub? -
Bearing xyuas PT100 sensors, pes tsawg tus kabmob? -
Qib B kev vibration muab kwv yees li 5 xyoos ntawm kev hloov kho. Qib C muab 2. Tus nqi sib txawv feem ntau yog 3-5%. Koj siv nyiaj tsawg dua, tom qab ntawd 2.5x ntxiv rau kev saib xyuas.
Ib tug tooj liab uas tos ntev heev
Ib tug concentrator nyob rau hauv Antofagasta khiav 2800kW induction lub cev muaj zog ntawm 3.2m grate zeb rau 14 xyoo. Lub cev muaj zog poob mus rau 1470 RPM nyob rau hauv lub zog ore. Kev xa tawm tau poob 8% thaum cov cheeb tsam nyuaj. Fais fab kis tau khiav 0.82 lagging - lub txim hluav taws xob yog $4,200 / hli.
Xyoo 2022 lawv tau hloov mus rau 3000kW synchronous lub cev muaj zog. Ceev xauv ntawm 1500 RPM. throughput stabilized thoob ore hardness variations. Fais fab xwm txheej kho rau 0.9 ua, tshem tawm lub txim.
Tus thawj coj saib xyuas, Rodrigo, tau hais tias: "Kuv yuav tsum tau hloov 5 xyoo dhau los. Lub cev muaj zog them rau nws tus kheej ua ntej kev kho dua tshiab." (Nws pom zoo yuav tsum hais.)
Tsis yog txhua lub zeb xav tau synchronous. Hauv qab 800kW, tus nqi them nqi vs induction tsis them rov qab. Rau cov thee mills, crushers, thiab grate mills siab tshaj 1000kW khiav 6000+ teev / xyoo, lej feem ntau ua haujlwm.
3 Cov lus nug uas nthuav tawm seb tus neeg muag khoom puas paub koj lub tshuab
1. "Lub sijhawm kuaj xyuas dab tsi koj pom zoo rau kuv qhov profile load?" Yog tias lawv teb "12 lub hlis" yam tsis tau nug txog koj lub voj voog ua haujlwm, qhov kub thiab txias, thiab keeb kwm kev vibration, lawv tsis paub.
2. "Qhia kuv qhov kev vibration spectrum los ntawm lub cev muaj zog ntawm kev ntsuas zoo sib xws tam sim no." Tsis muaj spectrum=lawv tsis tau ua qhov loj me ua ntej. Koj yog qhov chaw sim.
3. "Lub sijhawm ua haujlwm teb rau kuv kuv li?" Ib 72-teev teb rau qhov chaw nyob deb txhais tau tias 72 teev ntawm zeb downtime. Wingo Star stocks rotor thiab stator spares rau 2000-5000kW kev ntsuam xyuas thiab xa cov engineers teb rau kuv qhov chaw hauv 48 teev.
FAQ
Q: Ntev npaum li cas cov tshuab synchronous loj yuav kav ntev?
A: Feem ntau 20+ xyoo nrog kev kho kom raug. Lub stator winding yog lub neej - txwv kev tivthaiv - VPI Class F rwb thaiv tsev ib IEC 60085 mus txog kwv yees li 25 xyoo ntawm 80% load yam.
Q: Lub tshuab synchronous puas tuaj yeem hloov kuv lub cev induction tam sim no?
A: Feem ntau yog, yog lub hauv paus bolts thiab ncej qhov siab match. Cia 3-5 hnub rau commissioning lub excitation system thiab kho cov kev tiv thaiv relays.
Q: Synchronous lossis induction rau lub tshuab hluav taws xob?
A: Tshaj 800kW, synchronous. Coal mills xav tau 40-50% pib torque thiab ceev ceev kom zoo ib yam. Hauv qab 800kW, induction yog pheej yig dua thiab qhov sib txawv ntawm qhov ua tau zoo tsis ua rau tus nqi them.
Tom ntej no lub sij hawm koj lub cav tsav tsheb thaum 2 teev sawv ntxov, lo lus nug yuav tsis yog "rov pib dua lossis kaw" - nws yuav yog tus neeg muag khoom koj xaiv cov khoom seem thiab muaj tus kws ua haujlwm hauv lub dav hlau. Xa koj qhov profile thiab qhov chaw rau kuv. Kuv mam li qhia koj seb synchronous ua rau kev txiav txim siab rau koj lub zeb, lossis seb qhov induction yog qhov zoo dua hu rau . - pab pawg neeg ua haujlwm Wingo Star.
