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介绍了一种消减电磁辐射强度及无功补偿设计方法。通过实际测试及数据比对分析等研究工作,首次从电磁学理论上揭示了万安级热压电炉冶炼过程中电流升过万安时,出现功率因数低、低压侧电压损失大,电磁辐射严重,有功损失大,工件加热速度慢,周边构件涡流发热严重等异常现象的成因。提出了装备消磁补偿改造设计及预期技术指标:在同等条件下磁辐射减少40%以上,有功功率增加30%以上,功率因素由0.3~0.4提高到0.7,加热工件体积增加30%以上,加热工件时间缩短40%以上,攻克了大工件无法生产的难题。该项技术可在万安级电炉行业节能、消磁、扩能/增产等领域推广应用。
A method of reducing the intensity of electromagnetic radiation and reactive power compensation is introduced. Through the actual test and data comparison analysis and other research work, for the first time from electromagnetism theory reveals 10,000 ampere-class hot-press electric furnace smelting process current rose over 10000A, appeared low power factor, low voltage side voltage loss, serious electromagnetic radiation , The active loss, the workpiece heating slow, the surrounding components of the eddy current serious and other anomalies. The design and expected technical index of equipment demagnetization compensation are put forward. Under the same conditions, the magnetic radiation is reduced by more than 40%, the active power is increased by more than 30%, the power factor is increased by 0.3 ~ 0.4 to 0.7, the volume of heating workpiece is increased by more than 30% Shorten the time by 40%, to overcome the problem of large parts can not be produced. The technology can be applied in the fields of energy conservation, degaussing, expansion / stimulation and other fields of Wan’an class electric furnace industry.