Izindinganiso zokubhekisela zokukhethwa kwezimoto ikakhulukazi zihlanganisa: uhlobo lwemoto, i-voltage nesivinini;uhlobo lwemoto kanye nohlobo;ukukhethwa kohlobo lokuvikela imoto;motor voltage kanye nesivinini.
Ukukhethwa kwezimoto kufanele kubhekisele kulezi zimo ezilandelayo:
1.Uhlobo lokunikezwa kwamandla kwemoto, njengesigaba esisodwa, isigaba sesithathu, i-DC,njll.
2.Indawo yokusebenza yemoto, noma ngabe isikhathi sokusebenza kwemoto sinezici ezikhethekile, njengomswakama, izinga lokushisa eliphansi, ukugqwala kwamakhemikhali, uthuli,njll.
3.Indlela yokusebenza yemoto iwukusebenza okuqhubekayo, ukusebenza kwesikhashana noma ezinye izindlela zokusebenza.
4.Indlela yokuhlanganisa ye-motor, njengomhlangano oqondile, umhlangano ovundlile,njll.
5.Amandla nesivinini semoto, njll., amandla nesivinini kufanele kuhlangabezane nezidingo zomthwalo.
6.Ezinye izici, njengokuthi kuyadingeka yini ukushintsha isivinini, kungakhathaliseki ukuthi kunesicelo esikhethekile sokulawula, uhlobo lomthwalo, njll.
1. Ukukhethwa kohlobo lwemoto, i-voltage nesivinini
Lapho ukhetha uhlobo lwemoto, imininingwane ye-voltage nesivinini, kanye nezinyathelo ezijwayelekile, ngokuyinhloko isekelwe ezidingweni zomshini wokukhiqiza wedrayivu kagesi, njengezinga lemvamisa yokuqala nokubhuleka, noma ngabe kunesidingo sokulawula isivinini, njll. ukukhetha uhlobo lwamanje lwenjini.Okusho ukuthi, khetha enye injini yamanje noma i-DC motor;okwesibili, ubukhulu be-voltage eyengeziwe ye-motor kufanele kukhethwe ngokuhambisana nendawo yokuhlinzeka amandla;khona-ke ijubane layo elengeziwe kufanele likhethwe ngesivinini esifunwa umshini wokukhiqiza kanye nezidingo zemishini yokudlulisela;bese kuthi ngokusho komshini kanye nomshini wokukhiqiza.Indawo ezungezile inquma uhlobo lwesakhiwo kanye nohlobo lokuvikela lwenjini;ekugcineni, amandla engeziwe (amandla) enjini anqunywa ubukhulu bamandla adingekayo emshinini wokukhiqiza.Ngokusekelwe kulokhu okucatshangelwayo okungenhla, ekugcineni khetha injini ehlangabezana nezidingo kukhathalogi yomkhiqizo wezimoto.Uma injini esohlwini lwekhathalogi yomkhiqizo ingakwazi ukuhlangabezana nezidingo ezithile ezikhethekile zomshini wokukhiqiza, ingenziwa ngokwezifiso kumkhiqizi wemoto.
2.Ukukhethwa kohlobo lwemoto nohlobo
Ukukhethwa kwemoto kususelwa ku-AC ne-DC, izici zomshini, ukulawulwa kwejubane nokusebenza kokuqala, ukuvikela kanye nentengo, njll., ngakho-ke kufanele kulandelwe lezi zindlela ezilandelayo lapho kukhethwa:
1. Okokuqala, khetha i-asynchronous motor enezigaba ezintathu zesquirrel-cage.Ngoba inezinzuzo zokulula, ukuqina, ukusebenza okuthembekile, intengo ephansi kanye nokugcinwa okulula, kodwa ukushiyeka kwayo kunzima ukulawula isivinini, isici samandla aphansi, ukuqala kwamanje okukhulu kanye ne-torque encane yokuqala.Ngakho-ke, ifaneleka kakhulu imishini ejwayelekile yokukhiqiza kanye nokushayela okunezici zomshini oqinile futhi azikho izidingo ezikhethekile zokulawula isivinini, njengamathuluzi omshini ojwayelekile kanye nemishini yokukhiqiza efanaamaphampu noma abalandeli abanamandla amancane kunawo100KW.
2. Intengo yemoto yesilonda iphakeme kunaleyo yenjini yekheji, kepha izici zayo zomshini zingalungiswa ngokungeza ukumelana ne-rotor, ngakho-ke ingakhawulela umugqa wokuqala futhi yandise i-torque yokuqala, ukuze isetshenziselwe umthamo wokuphakelwa kwamandla amancane.Lapho amandla emoto emakhulu noma kunesidingo sokulawula isivinini, njengamathuluzi athile okuphakamisa, okokuphakamisa nokuphakamisa izinto, imishini yokunyathelisa yokufoga kanye nokunyakaza kwemishayo yamathuluzi omshini osindayo, njll.
3. Uma isikali sokulawula isivinini singaphansi1:10,futhikuyadingeka ukuze ukwazi ukulungisa isivinini ngokushelela, i-slip motor ingakhethwa kuqala.Uhlobo lwesakhiwo se-motor lungahlukaniswa ngezinhlobo ezimbili: uhlobo oluvundlile kanye nohlobo oluma mpo ngokusho kokuhluka kwendawo yayo yomhlangano.I-shaft ye-motor evundlile ihlanganiswe ngokuvundlile, futhi i-shaft ye-motor eqondile ihlanganiswe ngokuqondile ukuphakama, ngakho-ke ama-motor amabili awakwazi ukushintshaniswa.Ezimweni ezijwayelekile, kufanele ukhethe injini enezingqimba kuphela.Uma nje kudingekile ukugijima ngokuqondile (njengamaphampu emithombo ejulile eqondile kanye nemishini yokumba, njll.), ukuze kube lula umhlangano wokudlulisa, injini eqondile kufanele icatshangelwe (ngoba ibiza kakhulu) .
3.Ukukhethwa kohlobo lokuvikela imoto
Kunezinhlobo eziningi zokuvikela injini.Lapho ukhetha uhlelo lokusebenza, uhlobo lwemoto yokuvikela olufanele kufanele lukhethwe ngokuya ngezindawo zokusebenza ezahlukahlukene.Uhlobo lokuvikela lwenjini luhlanganisa uhlobo oluvulekile, uhlobo lokuvikela, uhlobo oluvaliwe, uhlobo lokuvikela ukuqhuma, uhlobo lwe-submersible njalonjalo.Khetha uhlobo oluvulekile endaweni evamile ngoba ishibhile, kodwa lufanelekela kuphela izindawo ezomile nezihlanzekile.Ezindaweni eziswakeme, ezimelana nesimo sezulu, ezinothuli, ezivutha umlilo, nezidlayo, uhlobo oluvaliwe kufanele lukhethwe.Lapho ukufakwa kuyingozi futhi kulula ukushaywa umoya ocindezelweyo, uhlobo lokuzivikela lungakhethwa.Ngokuqondene nemoto yamaphampu angaphansi kwamanzi, kufanele kwamukelwe uhlobo oluvalwe ngokuphelele ukuze kuqinisekiswe ukuthi umswakama awungenwa uma usebenza emanzini.Lapho injini isendaweni enengozi yomlilo noma ukuqhuma, kufanele kuqashelwe ukuthi uhlobo lokuvikela ukuqhuma kufanele lukhethwe.
Okwesine,ukukhethwa motor voltage kanye nesivinini
1. Lapho ukhetha injini yomshini wokukhiqiza webhizinisi lasefekthri ekhona, amandla kagesi engeziwe enjini kufanele afane nevoltheji yokusabalalisa amandla efektri.Ukukhethwa kwamandla kagesi enjini yefekthri entsha kufanele kucatshangelwe kanye nokukhethwa kwamandla kagesi kanye nomthamo wokusabalalisa wefekthri, ngokuya ngamazinga kagesi ahlukene.Ngemuva kokuqhathaniswa kwezobuchwepheshe nezomnotho, kuzokwenziwa isinqumo esingcono kakhulu.
Izinga le-voltage ephansi elibalulwe e-China ngu220/380V, futhi iningi lamandla kagesi aphezulu10KV.Ngokuvamile, amamotho amaningi amancane naphakathi ane-voltage ephezulu, futhi ama-voltages awo angeziwe220/380V(D/Yuxhumano) kanye380/660V (D/Yuxhumano).Lapho umthamo wemoto udlula cishe200KW, kuyanconywa ukuthi umsebenzisi akhetheinjini yamandla kagesi aphezulu3KV,6kvnoma10kv .
2. Ukukhethwa kwesivinini (esingeziwe) semoto kufanele kucatshangelwe ngokuvumelana nezidingo zomshini wokukhiqiza kanye nesilinganiso somhlangano wokudlulisa.Inombolo yama-revolutions ngomzuzu we-motor ngokuvamile3000,1500,1000,750futhi600.Ijubane elengeziwe le-asynchronous motor livame2% kuyaIphansi ngo-5% kunejubane elingenhla ngenxa yezinga lokushelela.Ngokombono wokukhiqizwa kwezimoto, uma ijubane elengeziwe lemoto yamandla afanayo liphakeme, ukwakheka nosayizi we-torque kagesi kuyoba kuncane, izindleko zizoba phansi nesisindo sizoba lula, futhi isici samandla futhi ukusebenza kahle kwama-motor anesivinini esiphezulu kuphezulu kunalawo anesivinini esiphansi.Uma ungakhetha injini enesivinini esiphezulu, umnotho uzoba ngcono, kodwa uma umehluko wejubane phakathi kwemoto nomshini ozoshayelwa umkhulu kakhulu, izigaba zokudlulisela zidinga ukufakwa ukusheshisa idivayisi, okuyinto izonyusa izindleko zemishini kanye nokusetshenziswa kwamandla okudluliswa.Chaza ukuqhathanisa nokukhetha.Iningi lamamotho esivame ukuwasebenzisa4- isigxobo1500r/minama-motor, ngoba lolu hlobo lwemoto enejubane elengeziwe lunezinhlobonhlobo zezinhlelo zokusebenza, futhi isici salo samandla nokusebenza kahle kokusebenza nakho kuphezulu.
Isikhathi sokuthumela: Jun-11-2022