Intermediate frequency induction furnace
Medium frequency furnace SHANDISA yepakati frequency magetsi ekupa induction kupisa, kunyungudika uye kuchengetedza kupisa.Medium frequency furnace inonyanya kushandiswa kunyungudutsa kabhoni simbi, alloy simbi, rudzi rwesimbi, asi zvakare inogona kushandiswa kugadzira mhangura, aruminiyamu uye kumwe kunyungudutswa kwesimbi isina ferrous uye kukwidziridza tembiricha. Saizi diki, huremu huremu, mwero wakakwira, kushandiswa kwesimba kushoma. , kukurumidza kunyunguduka, nyore kudzora tembiricha yechoto, yakakwira chigadzirwa.Intermediate frequency furnace inowanzoshandiswa mukugadzira fekitori uye kupisa kupisa.Intermediate frequency furenace zvishoma nezvishoma yakatsiva marasha anopfuta moto, gasi choto, oiri choto uye yakajairika kuramba muchoto, uye yave inofarira nyowani mufekitari yekukandira uye kupisa kurapwa. Imwe, yepakati frequency furnace inoshanda musimbotiIntermediate frequency furnace kuburikidza nesilicon inodzorwa rectifier inverter kugadzira yepakati. frequency simba, inotumirwa kuchoto chemuviri coil, choto (coil) pakati pepakati frequency electromagnetic field, kuitira kuti simbi iri muchoto muviri ibudise eddy current, eddy current wozoita kuti simbi ibudise huwandu hwakawanda hwekupisa so. kuti simbi inonyunguduka.Intermediate frequency furnace inonyanya kuumbwa nemagetsi, induction ring uye crucible yakagadzirwa nerefractory material in induction ring.Mukati me crucible ine metal furnace charge, yakaenzana neimwe winding transformer, induction coil, kana iri paac power, kusvika gadzira inotsinhanisa magineti mune induction coil, iyo magineti yesimba mutsetse mune crucible choto chaji, simbi inogadzirwa muchoto chemoto induction electromotive simba, nekuda kwekuremerwa pachayo inoumba yakavharwa loop, poindi yeiyi vice winding inongotendeuka uye ndiyo. yakavharwa.Saka, inductive current inogadzirwa panguva imwe chete mukuchaja.Kana iyo induced yezvino ichipfuura nemuchaji, iyo yekuchaja inopisa kuti inyunguduke.Iyo nzira yekushanda yepakati frequency furnace imhando ye induction cooker, sezvinotevera: kutanga, kuburikidza ne inverter magetsi, iyo matatu-phase alternating. ikozvino rectifier (SCR) muchikamu chimwe chete dc, ipapo neiyo inverter bhiriji inverter kuita rudzi rwekuchinjana ikozvino (ac), 500-1000 hz frequency pulse kuburikidza nemhangura mhete yekugadzira muchoto magineti, ita kuti simbi yedenderedzwa ibudise eddy ikozvino. magnetic field, eddy current inoyerera nesimbi inopisa, inogadzira kupisa, kuitira kuti iwane chinangwa chekunyungudutsa simbi.Iyo yakawanda frequency yepakati pepakati pevheti yemagetsi yemoto ndeye 800-20000Hz.Two, yepakati frequency furnace inoshanda dhiyagiramu Dhiyagiramu huru yedunhu block ye muchina unoratidzwa mumufananidzo. Iyo inogadzirisa inotora matatu-chikamu bhiriji inodzorwa inodzoreredza rectifier, iyo inverter inotora imwe-chikamu bhiriji inverter wedunhu, iyo inotakura yakafanana resonant fomu, iyo DC kusefa link ihombe inductance kusefa, kuitira kuti isangane zvinodiwa zvekupinza zveparallel inverters.
Ac - DC - AC converter
Three phase bridge controlled rectifier circuit
Mhepo inobuda yeatatu-chikamu bhiriji inodzorwa rectifier sekiti ndeye: Ud = 2.34 U2cosa…(1) Ud ndiyo avhareji kukosha kwekubuda kweDC voltageU2 - Grid phase voltageA - Trigger phase shift AngleThe waveform yemhepo inobuda pamakona A akasiyana (pasi pe inductive load uye non-intermittent current) .Iyo > Mamiriro e90 ° anonzi inverting kushanda mamiriro ekugadzirisa, iyo yakakosha ndeyokuti mutoro unodyisa shure simba kune grid simba.
