Lub hauv paus ntsiab lus ua haujlwm ntawm 2021 tshiab induction melting rauv

1. Los ntawm daim duab schematic ntawm lub ntsiab Circuit Court ntawm induction melting rauv saum toj no, nws tuaj yeem pom tias lub zog hluav taws xob ib feem ntawm cov khoom siv hluav taws xob ua kom sov yog tsim los ntawm lub zog txuas hluav taws xob thiab peb theem AC nqus dej; ib feem rectifier yog tsim los ntawm peb-theem tag nrho tswj cov choj rectifier tsim los ntawm ntau lub thyristors, Nws ua rau lub zog tso tawm ntawm induction melting rauv kom txuas ntxiv hloov kho los ntawm 0.1Pn (Pn sawv cev rau lub zog ntsuas) rau Pn. Thaum nws raug kaw lossis ua tsis tiav thiab tsis ua haujlwm, lub rectifier tuaj yeem hloov pauv los ntawm lub khoos phis tawj ua haujlwm rau lub xeev ua haujlwm inverter, yog li nws tsuas yog khaws cia hauv DC Lub zog nyob hauv nruab nrab Circuit Court tau rov qab xa mus rau lub zog siv hluav taws xob. Txhawm rau tiv thaiv tus kho qhov muag thyristor, lub fuse nrawm thiab DC thim rov qab tiv thaiv overvoltage kuj tau teeb tsa hauv Circuit Court.

Qhov nruab nrab ntawm DC yog qhov tseem ceeb ntawm cov dej txias txias nrog cov hlau hlau. Nws lub luag haujlwm yog lim lub pulsating DC cov zis ntawm lub rectifier thiab tshem tawm qhov cuam tshuam ntawm qhov nruab nrab zaus zaus ntawm lub zog hluav taws xob. Thaum lub sijhawm luv-ncig, nws tseem ua lub luag haujlwm tiv thaiv qhov tam sim no los ntawm kev nce nrawm heev.

Lub inverter yog tsim los ntawm ib-theem puv-tswj inverter choj tsim los ntawm ntau yam ceev thyristors. Los ntawm kev sib hloov ua rau cov thyristors, qhov tam sim no tau tso tawm mus rau lub davhlau ya nyob twg u thiab v ntawm qhov sib npaug resonant load hauv kev hloov pauv ntawm qhov nruab nrab zaus.

Tsis tas li ntawd, lub hauv paus tseem ceeb ntawm lub tshuab ua kom sov ua kom sov kuj tseem suav nrog AC thiab DC pib ua haujlwm.

2. Tswj Circuit

Cov kab hluav taws xob hauv daim phiaj xwm txheej tseem ceeb hauv kev kos duab yog kev tswj Circuit Court ntawm induction melting rauv. Rau ntu no, muab cov ncauj lus kom ntxaws tswj thiab hloov kho daim duab qhia chaw. Nws tuaj yeem pom los ntawm daim duab uas lub rectifier ntawm lub tshuab ua kom sov melting yog tswj los ntawm ob chav: tus tswj qhov rectifier thiab lub rectifier txhais. Hloov pauv mem tes hloov pauv kom tswj tau.

Kev saib xyuas qhov tsis raug thiab kev tiv thaiv ntawm tag nrho cov induction melting rauv yog tswj los ntawm kev tiv thaiv hluav taws xob thiab kev saib xyuas inverter, thiab cov cim ntawm tam sim no thiab qhov hluav taws xob tau tshwj xeeb ua tiav los ntawm lub teeb liab tawm tswv yim board.

Pib ntawm tag nrho cov induction melting rauv yog ua tiav los ntawm kev tswj kev co.

Kev sib koom ua ke ntawm txhua chav nyob saum toj no yog tswj los ntawm tus tswj hwm programmable (PLC).