Uhlelo lokusebenza lwe- metal melting furnace.

A. Ukulungiselela ukusebenza

1. Hlola ukuthi i-voltage yolayini ngamunye ongenayo ijwayelekile yini.

2. Hlola ukuthi umfutho wamanzi ngamunye kanye nomzila wamanzi ngamunye kujwayelekile.

3. Hlola ukuthi izibani zezinkomba ezihambisanayo zebhodi lokulawula eliyinhloko kanye ne-inverter pulse zivamile.

Zonke izinto ezingenhla zingaqala ukunikezwa kwamandla okushisa ngaphansi kwezimo ezijwayelekile.

B. Kungakhathaliseki ukuthi hlobo luni lwesifunda sokulawula esisetshenziselwa ukusebenza kokunikezwa kwamandla, lapho uqala, kufanele uqale uvule amandla okulawula, bese uvula amandla amakhulu, futhi ekugcineni uqale isithando somlilo esincibilikisa insimbi; uma imisiwe, imane nje iphambene, qala umise isithando somlilo esincibilikisa insimbi, bese usika amandla amakhulu, bese ekugcineni unqamule Vula amandla okulawula.

1. Qala ukusebenza.

Vala iswishi somoya esincane se-DZ ukuze ulungiselele ukuqala ifrikhwensi emaphakathi.

Vala i-control power switch SA, inkomba yamandla i-HL1 ivuliwe, futhi isilawuli samandla sinikwa amandla.

Cindezela inkinobho yokuvala yesekethe enkulu ethi SB1, isekethe enkulu inikwe amandla, futhi umsindo wokuvala i-circuit breaker ungazwakala.

Cindezela inkinobho yokuqala/yokusetha kabusha IF SB3, futhi inkomba esebenzayo HL2 izovuleka.

Kancane kancane lungisa i-potentiometer PR yokulungisa amandla futhi unake imitha yefrikhwensi. Uma kukhona inkomba futhi ungezwa ikholi yefrikhwensi emaphakathi, kusho ukuthi ukuqalisa kuphumelele. Ngemuva kokuthi ukuqalisa kuphumelele, vula i-potentiometer PR ekupheleni kanye, futhi ngesikhathi esifanayo, ukukhanya “kokuqala” ebhodini lokulawula eliyinhloko Vala, ukukhanya “Indandatho Yokucindezela” ivuliwe. Uma ukuqalisa kungasebenzi, kudinga ukuqaliswa kabusha.

2. Misa ukusebenza.

Vula i-potentiometer yokulungiswa kwamandla PR ngokuphikisana newashi kuze kube sekupheleni, futhi zonke izisetshenziswa ezikhombisayo zinguziro.

Cindezela inkinobho ethi IF qala/setha kabusha i-SB3, inkomba esebenzayo i-HL2 izophuma, futhi i-IF izoma.

Cindezela inkinobho yesekethe enkulu SB2, isekethe enkulu ivaliwe.

Vala i-control power switch SA, inkomba yamandla i-HL1 izocisha, futhi ugesi wokulawula uzonqanyulwa.

Vala umoya omncane ukuze uvule i-DZ ngaphambi kokuphuma emsebenzini.

3. Eminye imiyalelo

Uma kwenzeka ukungasebenzi kahle, iphaneli yokulawula ingagcina inkumbulo, futhi ukunikezwa kwamandla kungaqalwa kabusha kuphela ngemva kokuba ukungasebenzi kahle kuqediwe futhi inkinobho ephakathi nendawo yokuqala/yokusetha kabusha i-SB3 icindezelwe.

Uma kuba nephutha noma isimo esiphuthumayo, kufanele uqale ucindezele inkinobho ye-IF yokuqala/yokusetha kabusha i-SB3, bese ucindezela uhlelo lokumisa ugesi ukuze umise ukunikezwa kwamandla, bese uqala kabusha ukunikezwa kwamandla ngemva kokuxazulula inkinga.

Isikhathi sokuma sepompo yamanzi kufanele sinqunywe ngokuvumelana nezinga lokushisa lamanzi ku-coil yokungeniswa kwesithando somlilo esincibilikayo. Ngokuvamile, iphampu yamanzi kufanele imiswe cishe imizuzu engama-30 ngemva kokumiswa kokunikezwa kwamandla.