Harmonic tswj tswvyim rau induction melting rauv

Induction melting rauv: yog lub hwj huam mov uas hloov 50HZ fais fab zaus hloov tam sim no mus rau hauv nruab nrab zaus (300HZ saum toj no rau 1000HZ), uas hloov peb-theem fais fab zaus hloov tam sim no mus rau tam sim no ncaj qha tom qab rectification, thiab tom qab ntawd hloov cov tam sim no ncaj qha mus rau hauv nruab nrab adjustable. zaus tam sim no rau muab Lub nruab nrab zaus alternating tam sim no ntws los ntawm lub capacitor thiab induction kauj generates high-density magnetic kab ntawm quab yuam nyob rau hauv induction kauj, thiab txiav cov hlau cov ntaub ntawv uas muaj nyob rau hauv induction kauj, uas generates ib tug loj eddy tam sim no nyob rau hauv cov hlau. khoom.

1. Lub hauv paus ntsiab lus ua haujlwm ntawm induction melting rauv

Lub induction melting rauv feem ntau yog tsim los ntawm cov khoom siv hluav taws xob, ib qho induction coil thiab crucible ua los ntawm cov ntaub ntawv refractory nyob rau hauv induction kauj. Lub crucible muaj cov nqi hlau, uas yog sib npaug rau qhov thib ob winding ntawm lub transformer. Thaum lub induction kauj txuas nrog AC fais fab mov, ib qho chaw sib nqus sib nqus yog tsim nyob rau hauv induction kauj. Txij li thaum tus nqi nws tus kheej tsim ib lub voj kaw, qhov thib ob winding yog tus cwj pwm los ntawm ib qho tig thiab raug kaw. Yog li ntawd, induced tam sim no yog generated nyob rau hauv tus nqi tib lub sij hawm, thiab thaum lub induced tam sim no dhau los ntawm tus nqi, tus nqi yog rhuab los txhawb nws melting.

Lub induction melting rauv siv lub nruab nrab zaus fais fab mov los tsim ib qho nruab nrab zaus magnetic teb, uas generates induced eddy tam sim no nyob rau hauv cov khoom ferromagnetic thiab generates tshav kub, thiaj li mus cuag lub hom phiaj ntawm cua sov cov khoom. Lub induction melting rauv siv 200-2500Hz intermediate zaus fais fab mov rau induction cua sov, melting thiab kub preservation. Lub induction melting rauv yog tsuas yog siv rau melting carbon steel, alloy steel, tshwj xeeb steel, thiab kuj yuav siv tau rau melting thiab cua sov ntawm non-ferrous hlau xws li tooj liab thiab txhuas. Cov cuab yeej siv me me. , Lub teeb yuag, kev ua haujlwm siab, kev siv hluav taws xob tsawg, nrawm nrawm thiab cua sov, tswj tau yooj yim ntawm qhov cub kub, thiab kev ua haujlwm siab ntau lawm.

2. Harmonic yam ntxwv tsim los ntawm induction melting rauv

Feem ntau, 6-pulse induction melting furnaces mas tsim 5th thiab 7th yam ntxwv harmonics; rau 12-pulse converter li, lawv tsuas yog tsim 5th, 11th, thiab 13th yam ntxwv harmonics. Raws li ib txwm muaj, cov khoom siv hloov pauv me me siv 6 pulses, thiab cov loj dua siv 12 pulses. Piv txwv li, ob sab theem nrab ntawm lub cub tawg transformer txuas nrog Y / △ hom kom ua tiav theem hloov ntawm 30 degrees; los yog lub siab voltage sab ntawm ob lub cub tawg transformers txais yuav extension daim duab peb sab los yog zigzag Phase-hloov ntsuas xws li hom kev twb kev txuas thiab theem nrab ob-secondary lub hnub qub-kob kev twb kev txuas ua ib tug 24-pulse intermediate zaus fais fab mov los txo cov degree ntawm harmonics ‘pheej yig. daim phiaj zog.

Peb, harmonic txaus ntshai

Lub induction melting rauv ua rau ntau qhov sib haum xeeb thaum siv, uas ua rau muaj kev sib haum xeeb loj hauv daim phiaj hluav taws xob. Harmonics txo qhov ua tau zoo ntawm hluav taws xob xa hluav taws xob thiab kev siv hluav taws xob, ua rau cov khoom siv hluav taws xob ua kom sov, ua kom muaj kev vibration thiab suab nrov, thiab ua rau nws cov rwb thaiv tsev laus, txo cov kev pab cuam lub neej, thiab txawm tias ua haujlwm tsis zoo lossis hlawv; harmonics tuaj yeem ua rau lub hauv paus sib luag resonance lossis series resonance hauv lub zog. Txhim kho cov ntsiab lus sib haum xeeb, ua rau cov khoom siv them nyiaj capacitor thiab lwm yam khoom siv hluav taws kub. Nyob rau hauv cov ntaub ntawv uas reactive fais fab nyiaj them tsis tau siv, reactive fais fab kev nplua yuav tshwm sim, uas ua rau nce nqi hluav taws xob. Harmonics kuj tuaj yeem ua rau muaj kev cuam tshuam ntawm kev tiv thaiv relay thiab cov khoom siv tsis siv neeg, ua rau tsis meej pem hauv kev ntsuas hluav taws xob. Rau sab nraud ntawm lub zog hluav taws xob, kev sib haum xeeb yuav ua rau muaj kev cuam tshuam loj rau cov khoom siv sib txuas lus thiab cov khoom siv hluav taws xob. Yog li ntawd, kev txhim kho lub zog zoo ntawm induction melting furnaces tau dhau los ua qhov tseem ceeb ntawm cov lus teb.

Plaub, induction melting rauv harmonic tswj

LBAPF-ZP series ntawm cov ntxaij lim dej tshwj xeeb rau cov khoom siv zaus nruab nrab yog qhov tshwj xeeb tshaj yog tsim rau induction melting rauv load systems nrog cov ntsiab lus siab sib haum xeeb. Nws tuaj yeem daws cov cua sov thiab cua sov ntawm lub kaw lus qhov chaw thauj khoom, qhov nce ntawm lub suab nrov, qhov tsis ua haujlwm ntawm kev hloov pauv capacitor, thiab cov khoom siv hluav taws xob hauv Circuit Court puas thiab malfunctions tshwm sim los ntawm kev sib haum xeeb ntau dhau xws li kev puas tsuaj.

Lub LBAPF-ZP series ntawm cov ntxaij lim dej tshwj xeeb rau cov khoom siv zaus nruab nrab tau teeb tsa tom qab lub zog hluav taws xob rov ua haujlwm thiab nyob rau pem hauv ntej ntawm lub load. Lub harmonic filtering tus nqi rau lub rear load yog siab li 90%.