How to cancel the water temperature alarm of induction heating furnace?
1. After the induction heating furnace is started, the water temperature alarm occurs for several hours of production. This phenomenon indicates that the electrical system of the induction heating furnace is operating normally, and the cooling capacity may be too low. The calorific value of the induction heating furnace after a few hours of production, the circulating water If the temperature rises and cannot be cooled down, it will alarm. At this time, it is necessary to check and measure the circulating water temperature or the water temperature of the cooling pool. If the circulating water temperature or the water temperature of the pool is too high, the water temperature alarm is caused, and the circulating cooling water or the pool can be increased.
2. The water temperature will alarm after starting for a period of time or a few minutes. After the induction heating furnace is shut down, it can start to continue production, and it will alarm again after production. This frequent water temperature alarm needs to check whether the cooling water circuit inside the intermediate frequency power system is bent, blocked, etc. Clogging of debris, reduced flow, etc. The method of eliminating this water temperature alarm is relatively simple. Just check the cooling water circuit of the power supply part. Generally, open the cooling water pipeline of the power supply system, and use compressed air or other blowing equipment to blow through the pipelines one by one.
3. If the water temperature alarm is still activated after all the water channels are unblocked, it is likely that the inside of the induction coil and the inside of the thyristor water jacket. Serious scaling inside the reactor coil and the cooling inside the capacitor causes the cooling water temperature to rise and alarm. At this time, it is necessary to use weak acid to clean the coil cooling pipeline or go to the market to buy a descaling agent for descaling. Scale removal method: According to the power of the induction heating furnace, about 25 kg of water can be mixed with 1.5-2 kg of descaling agent, and the water pump can be circulated for 30 minutes, then replaced with clean water and circulated for 30 minutes.
4. The cooling water sometimes alarms and stops sometimes. Most of this alarm is caused by the unstable pressure of the cooling circulating water pump. If the circulating water pump pressure is unstable, air bubbles will easily occur in the water pipe, resulting in high water pressure and small water flow. Cooling water The heat exchange is reduced, and the heat of the induction heating furnace cannot be taken away to form a water temperature alarm. This water temperature alarm elimination method only needs to set a pressure relief valve on the cooling pipeline of the induction heating furnace.