Switching control device of special emergency power supply of medium-frequency induction furnace complete equipment

Abstract

The invention relates to the specific protection field of accidental power failure in the operation process of the medium-frequency induction furnace complete equipment, and particularly relates to a switching control device of a special emergency power supply of medium-frequency induction furnace complete equipment. The switching control device comprises a water-cooling system, a transmission system, a furnace charge clearing device of a heating furnace, a furnace inclining device of a smelting furnace and an auxiliary device, an emergency illuminator, a frequently-used power supply and an emergency power supply, and further comprises a switching control device body. The switching control device is simple in control system, convenient to select models of apparatuses, low in price, simple and easy to implement; the normal elements are adopted, so that the switching reliability of the device further can be increased; the filter element is additionally arranged, so that the wrong operation due to interferences of harmonic waves produced by a medium-frequency furnace further can be excluded.

Description

technical field [0001] The invention relates to the specific protection field of accidental power failure during operation of complete sets of intermediate frequency induction furnaces, in particular to a switching control device for special emergency power supplies of complete sets of intermediate frequency induction furnaces. Background technique [0002] At present, the most suitable heat dissipation method for intermediate frequency induction furnace is to dissipate heat with water cooling system. However, in the actual work process, there will be accidents and power outages in the factory area, or unexpected power outages. At this time, it is necessary to clean the furnace material heated by the intermediate frequency induction furnace, otherwise the heat of the metal material will burn the inductor, and the smelting has not had time to cast. Otherwise, when the molten metal solidifies in the furnace chamber and the main power supply of the intermediate frequency furnac...

AI Technical Summary

Problems solved by technology

However, there are obvious defects in the emergency treatment of the complete set of equipment of the intermediate frequency induction furnace. The presence of harmonics in the normal operation of the intermediate frequency electric will have strong interference with the microcomputer control circuit, which will cause malfunctions; in addition, the main power supply of the UPS power supply is usually AC220V. As a switching of lighting and control power supply, ATS can meet the work of three-phase power supply, but there is a problem of harmonic interference

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