中频电炉设备的根本结构
[来源:原创] [作者:aywl] [日期:17-06-05] [浏览次数:]
随着设施功率的提高,中频电源的供电电压也有所不通:目前国内常见的有380V,575V,660V,750V,950V,1100V;供电相数分为三相,六相,十二相。 As the power of the facility increases, the power supply voltage of the medium frequency power supply is also not working: at present, there are 380V in China, 575V, 660V, 750V, 950V, 1100V. The power supply phase is divided into three phases, six phases and twelve phases.   中频电源柜构成:主开关,整流可控硅,逆变可控硅,主控制板,平波电抗器。 Medium frequency power supply cabinet: main switch, rectifying silicon, inverter silicon, main control panel, flat wave reactor.   主控制板的重要性:相当于人的大脑。目前采用最广泛的是恒功率主控制板,有波峰焊和手工焊两种工艺,波峰焊工艺稳定,故障率低。 The importance of the main control board: the human brain. At present, the most widely used is the constant power main control board, which has the wave peak welding and manual welding technique, the wave peak welding process is stable, the failure rate is low.   炉体部分:普通的采用铝壳感应炉,稍好的不锈钢壳感应炉,好一些的采用液压磁轭钢壳感应炉。倾炉方式分减速机倾炉和液压倾炉两种。 Furnace body part: common use aluminous shell induction furnace, slightly good stainless steel shell induction furnace, some use hydraulic magnetic yoke steel shell induction furnace. Tilting furnace and tilting furnace and hydraulic tilting furnace.   工频供电系统:供电变压器,低压开关柜。 Power supply system: power supply transformer, low voltage switch cabinet.   可控硅:可控硅是中频电源的核心,它的准确使用对设施的运行至关重要。一台设施一年损坏三五只可控硅尚属正常,如果经常烧硅,电炉停摆,影响出产,就要引起警觉了。可控硅的工作电流从几百安到几千安,电压通常在一两千伏,良好的主控板保护和良好的水冷条件是必备的。 Thyristor: silicon controlled is the core of medium frequency power supply, and its exact use is critical to the operation of the facility. It is normal for a facility to be damaged by three or five thyristor a year. If it is regularly burned, the electric furnace stops and the production is affected. The working electric current of the thyristor can range from several hundred to several thousand, and the voltage is usually in one or two thousand volts, and good control board protection and good water-cooling conditions are necessary.
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