Medium frequency furnace in the selection of closed cooling towers encountered several cases - Database & Sql Blog Articles

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Focus on what should be paid attention to when the intermediate frequency furnace encounters a power outage. If you need to know more about the technical articles on the fluid cooler, please click on our website:

In some places, because the power consumption is very high, the voltage is unstable and a trip occurs, and the area of ​​the trip starts to be powered off. Although the electric power staff will try their best to repair it, it takes 2 hours to have an emergency trip. When the intermediate frequency furnace is working, there is a molten metal liquid in the furnace body. If it is not cooled in time, the inductor of the intermediate frequency electric furnace may be burnt. Therefore, the medium frequency induction furnace should fully consider the emergency situation when designing the cooling water pipe network connection and cooling system. This article

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In the three situations that are often encountered, explain the connection method and precautions of the intermediate frequency electric furnace cooling water pipe one by one.
Calculation principle: The circulation pump and the closed cooling tower have stopped working when the power is off, and new cooling water is needed to cool the furnace body. Take the 5 ton intermediate frequency furnace as an example to calculate.
The melting point of ordinary carbon steel is 1534 degrees Celsius. If the furnace is filled with 5 tons of steel in a molten state. According to Q=cmΔt, it is not difficult to calculate that 840000cal of heat needs to be taken away to ensure that the sensor is not damaged.
Case 1: Closed Cooling Tower + Pool This is usually the case with a gasoline or diesel emergency pump. When the power is cut off, the gasoline pump is automatically turned on and pumped from the pool to the intermediate frequency furnace. When the power is restored, the petrol pump automatically shuts down and switches to the normal pump to continue working until the furnace is cooled to a safe temperature. Since there is no cooling tower to remove heat, the heat in the furnace will be transferred to the pool. This means that the water temperature in the pool will be higher and higher. If the water temperature in the pool rises to 80 degrees Celsius, the pool should have a volume of at least 21 cubic meters.
The second case: closed cooling tower + water tank When the water tank is placed in the low position, the principle is similar to the pool. When the water tank is in the high position, the gasoline pump can be removed. The cooling water automatically flows through the furnace from the inside of the water tank by gravity, taking away heat and discharging the hot water. However, Huizhou Snowman does not recommend this practice. There are many dangers in this method. What should I do if the temperature in the water tank is still high after the water in the water tank is drained? If you use a water tank, you must also have a petrol pump or a diesel pump as a guarantee.
The third case: closed cooling tower, no tank, no pool When the user has no conditions to dig the pool, there is usually no way to place the tank, there are usually two ways to solve.
1, using a generator. When a power outage occurs, the generator automatically starts and continues to supply power to the circulating water pump and cooling tower. The closed cooling tower can continue to cool the circulating water to ensure the safety of the medium frequency furnace body.
2, the use of emergency water supply. Use the tap water pipe directly as an emergency water pipe. When the power is off, open the water pipe and pass it into the furnace until the furnace is cooled to a safe temperature. Under normal circumstances, the probability of simultaneous power outages and water cuts is extremely low. If you don't want to invest in a generator, using a water pipe directly is also a reliable method.

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