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About three methods of circulating water layout of electric furnace

Author : Hongteng Time: 2022-05-10

When we use the electric furnace, the water cooling system is an important part of the whole set of equipment. There are three common layouts of circulating water: Open water cooling tower + pool, Open water cooling tower + plate change + pool, Closed water cooling tower, today Hongteng The editor will introduce the advantages and disadvantages of these three water circulation methods for you.

1. Open water cooling tower + pool

The cooling principle is to use the complete contact between the circulating water and the air to reduce the temperature of the remaining circulating water through convection heat exchange and evaporation, and then fall into the lower pool.

This method is the simplest, and the initial investment is relatively small, but because of the need for a pool, the overall layout of the entire plant covers a large area. Moreover, in the process of heat exchange between circulating water and air, various impurities in the air will be mixed into the circulating water. Due to the evaporation of the pool, the concentration of impurities will be concentrated. In addition, algae and bacteria will grow on the wall of the pool, which will easily cause scaling of the pipeline. And blockage, the equipment has a high failure rate in the later stage, which has an impact on the operation and life.

2. Open water cooling tower + plate change + pool

The circulating water is changed to two paths. The inner circulating water enters the production equipment to bring the heat to the plate heat exchanger, and the external circulating water is responsible for bringing the heat to the atmosphere, which solves the problem of scale and algae.

The internal circulating water has not changed, but the external circulating water will still have the problem of scale and algae.

This method requires more investment and also occupies a large area. At the same time, the energy consumption of the dual circulation pump is high, and the water side is easy to block, scale and corrode once the water is changed.

3. Closed water cooling tower

This is a relatively reasonable method at present. The circulating water circulates inside the tube bundle and is completely isolated from the outside world. The internal circulating water does not scale, evaporate, or algae, which protects the furnace power supply and the copper sleeve of the induction coil.

For the spray water used externally, the scaling problem can be solved by means of regular discharge, and there is not much wasted water resources.

However, the initial investment of the closed cooling tower is high, and professional pre-job training is required for operators to master this method.

This is the sharing we bring to you today, users can choose the appropriate plan according to their actual situation.

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