Safety protection measures for medium frequency induction furnace
Release time:
2026-04-02
Medium frequency induction furnace is a kind of equipment commonly used for metal smelting and heating. Its operation involves high frequency electromagnetic field and high temperature, so special attention should be paid to safety protection measures during use.
1. Cooling water system
Medium frequency power supply, induction coil, water cable, etc. all need water for cooling, so water is very important for furnace equipment. The probability of furnace equipment damage caused by cooling water failure is high. Because most of the cooled devices are charged bodies, such as thyristors, induction coils, water cables, etc., the conductivity of the cooling water that directly cools these devices must be lower than the specified value, and the connecting hose must be a carbon-free hose. In addition, the inlet temperature, outlet temperature, water pressure and flow rate of the cooling water must meet the design requirements. The cooling water system of the electric furnace is equipped with various sensors to monitor the relevant parameters of the cooling water. When the cooling water parameters are abnormal or exceed the set value, an alarm will be sounded or the equipment will be stopped.
2. Hydraulic system
The hydraulic system of the medium frequency coreless induction furnace is used to tilt the furnace to pour out the molten metal liquid, as well as to open and close the furnace cover. To ensure reliable operation, the hydraulic station of the electric furnace should be equipped with two main pumps of the same specifications (one for use and one for backup).
In the case of a long power outage, the molten metal in the electric furnace may cool and solidify, which may damage the furnace lining. It is very dangerous to melt the solidified metal in the furnace by running the electric furnace. Therefore, the hydraulic system of the electric furnace should be equipped with an emergency system. When the power supply of the power grid is interrupted, this emergency system can be used to pour out the molten metal in the furnace if necessary to prevent it from solidifying in the furnace.
3. Ground leakage furnace monitoring alarm
During the operation of the medium frequency induction furnace, if the lining is damaged, it will cause a leakage accident. If the molten metal leaks out of the lining, it will damage the insulation, coil support and yoke of the induction coil. If it is not discovered in time, it will cause serious leakage.
4. Automatic fault diagnosis
The system scans each setting point of the equipment. When the parameters of the setting point are found to be abnormal, an alarm will be issued and the fault information can be displayed and recorded.
Although various safety measures have been taken on the electric furnace equipment, in order to ensure safety, it is also necessary to cooperate with the management system to improve the safety awareness of personnel.
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