Sei musiyano wemutengo pakati pemhando imwechete yepakati frequency induction inonyungudutsa choto?

Medium frequency induction melting ine mwero wekupisa kwakanyanya, kushanda kwakanyanya, kuderera kwekupisa, kuderera kwekupisa, kushomeka kwesekishopu tembiricha, kuderedzwa kugadzirwa kwehutsi, kuchengetedza simba, kuvandudza goho, kuvandudzwa kwemamiriro evashandi, kuderera kwekushanda, uye nzvimbo yakachena yekamuri. Kunyanya yesimbi yakakandwa, iyo induction yakanyunguduka choto inobatsira kuwana yakaderera-sarufa iron liquid iyo isingaenzaniswi nekapu. Paunenge uchisarudza yepakati frequency yekunyungudutsa choto, kambani yekuwana inofanirwa kusarudza zvinotevera zvinoenderana neshanduko yemagetsi, zvinodiwa zvekugadzira, chikamu chekudyara, nezvimwe, kana uchitenga michina.

1. Medium frequency induction melting mamiriro

1.1 Medium frequency induction kunyungudutsa transformer kugona

Parizvino, kune SCR yakazara-bhiriji parallel inverter IF magetsi emagetsi, hukama hwenhamba pakati pesimba rekushandura uye simba rekupa: kukosha kweiyo transformer kugona = kukosha kwesimba rekupa x 1.2

Kune IGBT hafu-bhiriji yakatevedzana inverter IF simba rekupa (inowanzozivikanwa seimwe kune maviri, imwe yekunyungudutsa imwe insulation, maviri ekushanda panguva imwe chete), hukama hwenhamba pakati petransformer kugona uye magetsi ndeye: kukosha kwetransformer kugona = kukosha kwesimba. kupa x 1.1

The transformer is rectifier transformer. Kuti uderedze kupindira kweharmonics, inosvika kure sezvinobvira kune yakakosha ndege, ndiko kuti, imwe yepakati frequency magetsi magetsi akashongedzerwa ane rectifier transformer.

1.2 IF induction fuse line voltage

Kune epakati frequency magetsi ekupa pazasi 1000KW, matatu-chikamu shanu-waya 380V, 50HZ simba reindasitiri rinoshandiswa, uye 6-pulse single-rectifier yepakati frequency magetsi inogadziriswa. Kune epakati-frequency magetsi epamusoro pamusoro pe1000KWY, chinotariswa chiri pakushandisa 660V iri kuuya magetsi (vamwe vagadziri vanoshandisa 575V kana 750V). Nekuti 575VZ kana 750V isiri-standard voltage level, zvishongedzo hazvina kunaka kutenga, zvinokurudzirwa kusashandisa). Gadzirisa 12-pulse double-rectifier IF simba rekushandisa nekuda kwezvikonzero zviviri: chimwe ndechekuwedzera yakatemerwa kushanda voltage nekuwedzera iyo inouya mutsetse voltage; yechipiri yakakura Iyo harmonics inogadzirwa nesimba ichakanganisa grid. Iyo kaviri kugadzirisa inogona kuwana yakatwasuka DC ikozvino. Mutoro wazvino irectangular wave, uye iyo voltage yekutakura iri padyo neine wave, iyo inoderedza kukanganiswa kwegridhi pane zvimwe zvishandiso.

Vamwe vashandisi vanongoteedzera yakakwira voltage (mamwe 1000KW anoshandisa 900V mutsara wemagetsi), uye kuwana simba rekuchengetedza kubva rakaderera ikozvino. Handizivi kana izvi zviri pamutengo wehupenyu hwevira remagetsi. Hazvina kukodzera kurasikirwa, high voltage iri nyore kupfupisa hupenyu hwezvikamu zvemagetsi. , platoon yemhangura, kuneta kwetambo, kuitira kuti hupenyu hwevira remagetsi huderedze zvikuru. Mukuwedzera, high voltage yevagadziri vevira remagetsi, zvigadzirwa zvakaderedzwa maererano nezvinhu, kuchengetedza mari. Vagadziri vevira remagetsi zvechokwadi vanoda kuita kudaro (yepamusoro-mutengo wakaderera-mutengo.) Kurasikirwa kwekupedzisira kuchiri kushandiswa kwevagadziri vemagetsi emoto.

2. Kugona zvinodiwa

Kazhinji, huwandu hweyepakati frequency induction yekunyungudutsa vira inogona kutariswa nehuremu hwezvimedu zvega uye huremu hwesimbi yakanyungudutswa inodiwa pazuva rega rega rekushanda. Wobva waona simba uye kuwanda kweiyo IF magetsi ekupa. Induction kudziyisa midziyo isiri-yakajairwa chigadzirwa. Parizvino, hapana mwero munyika, uye kurongeka kweiyo indasitiri kunoratidzwa muTafura 1.

Tafura 1 Medium frequency induction inonyungudutsa choto sarudzo paramita

Zvinogona kuoneka kubva Tafura 1 kuti simba remagetsi remukati mepakati frequency induction kunyunguduka choto chinenge 500 KW/ton, iyo yakaderera pane theoretical yakakwana kukosha kwe600-800 KW, kunyanya tichifunga nezvehupenyu hwemaraini uye manejimendi ekugadzira. Pasi pesimba rakanyanya density, electromagnetic kubvongodza inoburitsa yakasimba scouring ye lining, uye izvo zvinodikanwa zvemidziyo yekumisa, nzira dzekuvaka choto, nzira dzekunyungudika, zvinhu, uye zvekubatsira zvinhu zvakakwirira. Zvinoenderana nekugadziriswa kwepamusoro, nguva yekunyunguduka pachoto imwe 75 maminetsi (kusanganisira kudyisa, kuponesa tsvina, kudzima uye kupisa nguva). Kana zvichidikanwa kupfupisa nguva yekunyunguduka pachoto chimwe nechimwe, simba resimba resimba remagetsi rinogona kuwedzerwa ne 100 KW/ton ukuwo simba remuviri wechoto risingaperi.

3. Kusarudzwa kwemaitiro

Zvinoenderana nemaitiro emaindasitiri, iyo yekunyungudutsa yevira yealuminium alloy chimiro neinoderedza sezvo nzira yekurerekera inowanzozivikanwa sealuminium shell furnace. Iyo induction yekunyunguduka choto chesimbi chimiro chine hydraulic cylinder sechoto chinorereka chinowanzonzi simbi shell furnace. Musiyano uripo pakati pezviviri unoratidzwa muTafura 2 uye Mufananidzo 1.

Tafura 2 Iyo simbi shell furnace uye aluminium shell furnace zvakasiyana (tora 1 toni yakakandwa yesimbi semuenzaniso)

Kuenzaniswa nealuminium shell furnace, zvakanakira simbi shell furnace mapoinzi mashanu:

1) Yakakanuka uye inoyevedza, kunyanya kune yakakura-inokwana mavira, ayo anoda yakasimba yakasimba yakaomeswa chimiro. Kubva panzvimbo yekuchengetedza yevira inorereka, edza kushandisa simbi shell furnace.

2) Joko rakagadzirwa nesilicon simbi shield nhoo uye rinoburitsa magineti mitsara inogadzirwa neiyo induction coil, inoderedza kudonha kwemagineti, inovandudza kupisa kwemafuta, inowedzera kugadzirwa, uye inochengetedza simba ne5% -8%.

3) Kuvapo kwechifukidziro chevira kunoderedza kurasikirwa kwekupisa uye kunowedzera kuchengetedzwa kwemidziyo.

4) Hupenyu hurefu hwebasa, aluminium inowedzera oxidized pakupisa kwakanyanya, zvichikonzera kuneta kwesimbi. Munzvimbo yekuvakira bhizinesi saiti, zvinowanzoonekwa kuti aluminium shell furnace shell inoshandiswa kwegore rimwe chete kana zvakadaro yakatyoka, uye simbi yegoko resimbi ine kushoma kwekudonha ikozvino, uye hupenyu hwesevhisi hwechishandiso hunodarika iyo yealuminium shell. choto.

5) Chengetedzo kuita Iyo simbi shell furnace iri nani kupfuura iyo aluminium shell furnace. Kana iyo aluminium shell furnace yakanyungudutswa, iyo aluminium shell inokanganisika nyore nekuda kwekupisa kwakanyanya uye inorema kudzvanywa, uye chengetedzo haina kunaka. Iyo simbi shell furnace inoshandisa hydraulic tilting vira uye yakachengeteka uye yakavimbika.

Sei mitengo yemhando imwechete yakasiyana? Iwe unosarudza sei “yepakati frequency kunyunguduka vira”?

Mutengo wemhando imwechete yepakati frequency induction furnace yakasiyana kwazvo. Tora 1 toni yevira iyo inowanzoshandiswa semuenzaniso. Mutengo wemusika dzimwe nguva unosiyana kakawanda, izvo zvinoenderana nechimiro chechoto, kusarudzwa kwechikamu, zvigadzirwa zvehunyanzvi, mushure mekutengesa sevhisi uye mhando. A multifaceted factor yakakosha.

Zvinhu zvakasiyana

Furnace shell uye joko: Mukusarudza kwegoko realuminium shell furnace, yakajairwa tani 1 toni aluminium shell furnace ine huremu hwevira revira re400Kg uye ukobvu hwe40mm. Vamwe vanogadzira kazhinji vane huremu uye husina kukwana ukobvu. Chinhu chinonyanya kukosha chesimbi shell vira ndiyo kusarudzwa kwejoko. Sarudzo yemhando imwechete yesimbi shell furnace joko yakasiyana. Musiyano wemutengo wakakura kwazvo. Kazhinji, nyowani yakakwira-permeability inotonhora-yakatenderedzwa silicon simbi pepa neZ11 inofanirwa kusarudzwa. Silicon simbi Ukobvu hwepepa ndeye 0.3mm, uye iyo contoured chimiro inogamuchirwa. Iyo yemukati arc pamusoro uye yekunze denderedzwa arc ye induction coil yakafanana, kuitira kuti joko rigone kusungirirwa padhuze nekunze kweiyo induction coil, uye iyo yakanyanya kuvharira coil inovhenekerwa kunze, uye joko riri paviri The Stainless. ndiro yesimbi nesimbi isina simbi zvinosungirirwa, zvinosungwa uye zvinogadziriswa, uye zvinotonhodzwa nemvura.

(Vamwe vagadziri vanoshandisa marara, pasina kutarisisa, kana kunyange silicon simbi mashiti akabviswa kubva kune akashandiswa matransformer kugadzira majoko,)

Copper chubhu uye mutsara mumwe chete: Iyo yakakosha yevira yekunyunguduka ndiyo mhedzisiro yeinotonhora extrusion yemhangura chubhu uye yakakandwa yemhangura chubhu yeiyo induction coil. Iyo T2 inotonhora-yakawedzera mhangura chubhu ine hofori muchinjiko-chikamu inofanira kushandiswa. Iyo yepamusoro insulation kurapwa kwehubhu yemhangura inopfapfaidzwa nemagetsi kuti iwane Kirasi H insulation. Kuchengetedza simba rayo rekudzivirira, iyo mica tepi uye alkali-isina girazi ribhoni inoputirwa uye yakaputirwa pamusoro kamwe chete, uye ipapo Isa mwando-uchapupu insulating enamel. Pane imwe gap pakati pekutendeuka kwekoiri. Kana iyo refractory dhaka yakaputirwa mucoil, ivhu rinoramba richifanira kupinzwa mugomba kuti risimbise kusungirirwa kweglue pane coil pacoil. Mushure mokunge simenti inopikisa ichivakwa, nzvimbo yemukati inogadziriswa kuti iite kuti kubviswa kwechigadziko. Iyo coil inodzivirirwa, uye mashoma simbi isina tsvina yemvura-inotonhorera zvindori inowedzerwa kumusoro uye yakaderera migumo yekoiri kuti iwedzere kuomarara kwese uye kufambisa kupisa kupisa.

(Vamwe vagadziri vanoshandisa machubhu emhangura kana T3, ayo asina kufambiswa zvakanaka kwemagetsi uye ari nyore kupwanya nekudonha.)

SCR: Iyo thyristor inoshandiswa nevagadziri vakasiyana-siyana inowanzove yemhando isina kuenzana. Unhu hwe thyristor hwakanaka, mhinduro inokurumidza uye chiyero chekukundikana chakaderera. Nokudaro, thyristors yevanozivikanwa vanogadzira vanosarudzwa, uye hutano hwakavimbika uye hwakagadzikana.

(Pakusarudza, mugadziri wevira remagetsi anodiwa kuti aratidze mugadziri we thyristor, uye chiziviso chechigadzirwa chemugadziri we thyristor chinoratidzwa. Unhu hunodzora thyristor hweH quality ndeye: Xiangfan Taiwan Semiconductor Co., Ltd., Xi. ‘Institute of Power Electronics, nezvimwewo)

Power cabinet: Mugadziri wenguva dzose anoshandisa yakajairwa spray panel cabinet. Kwete kabati yakapendwa nerata. Uye saizi yakatarwa yemagetsi kabati ndeye standard. Vagadziri vasingawirirani vemakabati emagetsi zvakare vadzikira, kureba, hupamhi uye ukobvu hazvina kukwana, uye kunyange mamwe mareactor akaiswa kunze kwemagetsi emagetsi. Iyo yenguva dzose inogadzira IF magetsi emagetsi ane yakaderera-voltage switch mukati, iyo isingade kuti mushandisi agadzirise voltage switch cabinet. Vamwe vagadziri vasiri venguva dzose havana low-voltage switch yakaiswa mukati memagetsi. Zvisingaonekwi zvinowedzera mutengo wemushandisi (yakanaka mhando yakaderera-voltage switch ndiHuanyu, Chint, Delixi, nezvimwewo).

Capacitor : Iyo inonyanya kukosha capacitor kabati ye reactive simba muripo inofanirwa kuve yakashongedzerwa nehuwandu hwakakwana. Kazhinji, kukosha kwekubhadhara kwe capacitor ndeye 18–20 nguva simba rekupa simba: Capacitance compensation amount (Kvar) = (20— 18) x magetsi. Uye shandisa ma capacitors evagadziri venguva dzose.

Reactor: Chinhu chikuru cheiyo reactor isilicon simbi sheet. Zvigadzirwa zvitsva zvinogadzirwa nevagadziri venguva dzose zvinofanirwa kushandiswa, uye zvakadzokororwa kechipiri-ruoko silicon simbi mapepa hazvigone kushandiswa.

Mvura pombi clamp: Museti yakakwana yepakati frequency kunyunguduka choto, kune huwandu hukuru hwepombi dzemvura dzakabatana. Kunyatsotaura, simbi isina tsvina inofanira kushandiswa. Zviri nani kushandisa copper slip knots. Zviri nyore kuisa uye kuparadzanisa mapfundo pasina kugadzirisa. Inonyanya kukodzera kushandiswa pamvura yakanyoroveswa tambo, iyo inobatsira kune ikozvino kutapurirana uye isingakonzeri kubuda kwemvura, iyo yakachengeteka uye yakavimbika.

Pamusoro pemapoinzi ari pamusoro apa, kune zvimwe zvikamu zvekusarudza kubva, senge inverter non-inductive capacitors, non-inductive resistors, tambo dzakanyoroveswa nemvura, kubatanidza mbariro dzemhangura, pombi dzemvura, nezvimwewo, izvo zvinokanganisa kunaka uye mutengo. zvemidziyo. Pano isu hatitsananguri, ndinovimba iwe unogona kuterera kana uchisarudza kutenga, edza kuda kuti mugadziri wechoto anonyungudika ape ruzivo rwezvikamu zvikuru uye vanogadzira, havangango furatira chimiro uye mhando yemidziyo kupfuura mutengo.

Sezvo iyo yepakati frequency furnace isiri-yakajairwa chigadzirwa, inorairwa kuti igadziriswe, uye hunhu hwacho hwakabatana zvakanyanya nemutengo.

4, simba rehunyanzvi

Vagadziri venguva dzose vakaisa mari yakawanda yevashandi uye zviwanikwa zvekutsvaga tekinoroji yepamberi, ine michina yepamberi uye yakanakisa tekinoroji, ichiratidza zvakasiyana-siyana maererano nekunyungudika kunyunguduka, mashandisirwo emagetsi uye kutadza kwemidziyo. Vagadziri vazhinji havana mamiriro e-in-plant commissioning, mutengo wakaderera, uye kukanganisa kwekuunganidza uye kutumirwa maitiro pamhando yakakura kwazvo. Vagadziri vakasiyana, maitiro akasiyana, uye mitengo yakasiyana inoburitsawo hunhu hwakasiyana.

5, mushure mekutengesa sevhisi

Yakanaka mushure mekutengesa sevhisi ndiyo vimbiso yemhando yemidziyo. Izvo hazvidzivisiki kana zvigadzirwa zve electromechanical zvakundikana. Izvi zvinoda zvakanaka mushure mekutengesa sevhisi. Vagadziri venguva dzose vane vakakwana tekinoroji vashandi uye kugona kuvimbisa mushure mekutengesa sevhisi. Iyo yepakati frequency induction induction yekunyungudutsa vira ine gore rimwe waranti yenguva mushure mekudzokororwa static uye dynamic kutumwa isati yabva mufekitori. Munguva iyi, chero kukanganisa kwemidziyo kunokonzerwa neasina basa remunhu richava basa remugadziri.

Muchidimbu, bhizinesi rekutanga rinofanira kusarudza michina inonyatso kuenderana nemamiriro ezvinhu ebhizinesi zvinoenderana nezvinodiwa chaizvo. Mukuita sarudzo, mugadziri anofanirwa kuenzanisa kugadzira, kugadzirisa, hunyanzvi mhinduro, uye mushure mekutengesa sevhisi maitiro emidziyo kusarudza inogutsa michina.

Iyo yepakati frequency choto inosanganisira, transformer, mhepo-kuvhura, harmonic sefa, inverter kabati, tambo yemvura, induction coil, furnace shell nezvimwe zvakadaro. Kugadziriswa kwakasiyana kunogoneka kune yega yega kugadzirwa. Inogona kunge yakasiyana zvichienderana nechinhu, fomu uye mutengo. Zvakanakisisa kukurukura mutengo zvakasiyana. Parizvino, iyo yepakati frequency furnace iri kusimukira yakanangana nepamusoro pesimba uye hukuru hukuru. Iyo 1 ton yepakati frequency furnace yatove idiki kwazvo. Parizvino, hapana akawanda matsva, asi tekinoroji yakakura uye yakachipa.