Comparison between closed cooling tower and open cooling tower of vacuum furnace

The cooling principle of the open cooling tower is to spray the circulating water on the glass fiber filler, and realize the heat exchange through the contact between the water and the air. , so as to achieve the purpose of cooling.

The cooling principle of the vacuum furnace closed cooling tower is simply two cycles: an inner cycle and an outer cycle. Without filler, the main core part is a copper tube surface cooler.

Advantages of vacuum furnace closed cooling tower: 1. The whole pipeline system is closed cycle, and the circulating water is distilled water, which can make the heat exchanger of the vacuum furnace body and small pipelines free from scaling, pollution and corrosion, and the service life of the vacuum furnace is almost doubled. 2. The circulating water consumes almost no water, and the same type of equipment saves about 7,000 tons of water every year. Because the closed cooling tower is fully closed and circulated for cooling, no sundries enter the cooling pipeline system, avoiding pipeline blockage. 3. The vacuum furnace closed cooling tower occupies a small area, does not need to dig a pool, is easy to address, saves water and reduces energy consumption. 4. The closed cooling tower adopts the double cooling method of air cooling, evaporation and heat absorption, and the cooling efficiency is high;

Disadvantages of closed-circuit cooling towers for vacuum furnaces: The cost of closed-circuit cooling towers is three times that of open-circuit cooling towers. (But ten years later, the closed tower is worth 800,000-100,000, and the open tower is almost worthless)

Advantages of open cooling towers: The cost of open cooling towers is relatively low, which is one third of the price of closed cooling towers.

Disadvantages of open cooling towers: 1-2 underground pools of 20 cubic meters need to be excavated. Due to the loss of water droplets and head of the open tower, the power consumption is larger than that of the closed tower, requiring two pumps.

In general, vacuum furnace closed cooling towers have longer service life, reduce equipment maintenance costs, save labor and money.