Inkqubo yolawulo yeHarmonic ye ukuchithwa kwesithando somlilo

I-Induction melting furnace: sisixhobo sonikezelo lwamandla esiguqula i-50HZ yamandla ombane aguqukayo angoku abe ngamaza omoya aphakathi (300HZ ngaphezulu ukuya kwi-1000HZ), eguqula amandla ombane amanqanaba amathathu atshintshayo abe ngoku ngokuthe ngqo emva kokulungiswa, aze aguqule umsinga othe ngqo ube ngumbindi olungelelanisiweyo. I-frequency yangoku yonikezelo I-medium frequency alternating current equkuqela kwi-capacitor kunye ne-coil induction ivelisa imigca yemagnethi ephezulu yoxinaniso kwi-coil induction, kwaye inqumle izinto zetsimbi eziqulethwe kwikhoyili yokungeniswa, eyenza i-eddy yangoku enkulu kwintsimbi. impahla.

1. Umgaqo osebenzayo wesithando sokunyibilikisa induction

I-furnace yokunyibilikisa i-induction ikakhulu iqulethwe ngumbane, i-coil induction kunye ne-crucible eyenziwe ngezinto eziphikisayo kwi-coil induction. I-crucible iqulethe intlawulo yetsimbi, elingana ne-second winding ye-transformer. Xa i-coil induction ixhunyiwe kwi-AC power supply, i-alternating field magnetic iveliswa kwi-coil induction. Ekubeni umrhumo ngokwawo wenza i-loop evaliweyo, ukuvuthwa kwesibini kubonakala ngokujika okukodwa kwaye kuvaliwe. Ngako oko, i-current induced current ikhiqizwa kwintlawulo ngexesha elifanayo, kwaye xa i-current induced idlula kwintlawulo, intlawulo iyatshisa ukukhuthaza ukunyibilika kwayo.

Iziko lokunyibilikisa lokungeniswa lisebenzisa unikezelo lwamandla ombane ophakathi ukuseka indawo yemagnethi ephakathi, evelisa imisinga ye-eddy ngaphakathi kwemathiriyeli yeferromagnetic kwaye ivelise ubushushu, ukuze kufezekiswe injongo yokufudumeza imathiriyeli. I-furnace yokunyibilikisa i-induction isebenzisa i-200-2500Hz i-intermediate frequency frequency unikezelo lwamandla obushushu bokungenisa, ukunyibilika kunye nokugcinwa kobushushu. I-furnace yokunyibilikisa i-induction isetyenziselwa ukunyibilikisa i-carbon steel, i-alloy steel, intsimbi ekhethekileyo, kwaye ingasetyenziselwa ukunyibilika kunye nokufudumeza isinyithi esingenawo i-ferrous njengobhedu kunye ne-aluminium. Isixhobo sincinci ngobukhulu. , Ubunzima bokukhanya, ukusebenza kakuhle okuphezulu, ukusetyenziswa kwamandla aphantsi, ukunyibilika ngokukhawuleza kunye nokufudumeza, ukulawula lula ukushisa kwesithando somlilo, kunye nokusebenza kakuhle kokuvelisa.

2. Iimpawu ze-Harmonic eziveliswa ngesithando sokunyibilikisa i-induction

Ngokuqhelekileyo, i-6-pulse induction melting furnaces ikakhulu ivelisa i-5 kunye ne-7 yeempawu ze-harmonics; kwizixhobo ze-12-pulse converter, zivelisa ubukhulu becala i-5, i-11, kunye ne-13 yeempawu ze-harmonics. Kwiimeko eziqhelekileyo, izixhobo ezincinci zokuguqula zisebenzisa ii-pulses ezi-6, kwaye ezinkulu zisebenzisa i-12 pulses. Ngokomzekelo, i-double second side ye-furnace transformer ixhunywe kuhlobo lwe-Y / △ ukufezekisa ukutshintshwa kwesigaba se-30 degrees; okanye icala lamandla ombane aphezulu kwiziguquli zeziko ezibini lithatha unxantathu owongezelelweyo okanye igzag imilinganiselo yokutshintsha kweSigaba njengonxibelelwano lohlobo kunye noqhagamshelo lwekona lesibini lwesibini lwesibini lwesibini lubumba unikezelo lwamandla olwenziwa ngamaza omoya angama-24 ukuze kuncitshiswe iqondo leempembelelo zeharmonics igridi yamandla.

Ezintathu, iingozi ze-harmonic

I-furnace yokunyibilikisa induction yenza inani elikhulu leeharmonics xa lisetyenziswa, nto leyo ebangela ungcoliseko olubi lwe-harmonic kwigridi yamandla. I-Harmonics inciphisa ukusebenza kakuhle kokuhanjiswa kwamandla ombane kunye nokusetyenziswa, kubangela ukuba izixhobo zombane zigqithise kakhulu, zivelise ukungcangcazela kunye nengxolo, kwaye zenze ukuguga kwayo, ukunciphisa ubomi benkonzo, kunye nokungasebenzi kakuhle okanye ukutshisa; i-harmonics inokubangela i-resonance parallel yasekhaya okanye i-resonance yochungechunge kwinkqubo yamandla. Ukukhulisa umxholo we-harmonic, obangela ukuba izixhobo zembuyekezo ye-capacitor kunye nezinye izixhobo zitshise. Kwimeko apho imbuyekezo yamandla asebenzayo ayinakusetyenziswa, kuya kwenzeka izohlwayo zamandla asebenzayo, okukhokelela ekunyukeni kwamatyala ombane. IiHarmonics zisenokubangela ukungasebenzi kakuhle kokhuseleko lombane kunye nezixhobo ezizenzekelayo, ezibangela ukubhideka kumlinganiselo wamandla ombane. Ngaphandle kwenkqubo yamandla, i-harmonics iya kubangela ukuphazamiseka okukhulu kwizixhobo zonxibelelwano kunye nezixhobo zombane. Ke ngoko, ukuphucula umgangatho wamandla we-intduction melting furnaces ibe yeyona nto iphambili ekuphenduleni.

Isine, ukunyibilikisa isithando somlilo kulawulo lweharmonic

Uluhlu lwe-LBAPF-ZP lwezihluzi ezikhethekileyo ezisebenzayo zezixhobo zamaxesha aphakathi zifaneleke ngokukodwa kwiinkqubo zokunyibilikisa zokunyibilika kwesithando somlilo esinomxholo ophezulu kakhulu we-harmonic. Inokusombulula ukufudumeza kunye nokufudumala kwenkqubo apho umthwalo ukhoyo, ukunyuka kwengxolo, ukungaphumeleli kokutshintshwa kwembuyekezo ye-capacitor, kunye namacandelo esekethe Umonakalo kunye nokungasebenzi kakuhle okubangelwa yimisinga ye-harmonic egqithisileyo njengomonakalo.

Uluhlu lwe-LBAPF-ZP lwezihluzi ezikhethekileyo ezisebenzayo zezixhobo zefrikhwensi ephakathi zifakwe emva kwembuyekezo yamandla asebenzayo kunye nangaphambili komthwalo. Izinga lokucoca i-harmonic kumthwalo ongasemva uphezulu njenge-90%.