The "hard water" entering the boiler must be treated in advance

The "hard water" entering the boiler must be treated in advance

I believe that whether you are purchasing a hot water boiler or a steam boiler, the technicians will repeatedly emphasize that the water entering the boiler must be soft water after water treatment. Why do you say this? Let the technical engineers of Zhengzhou Fangkuai Boiler Factory answer for you.

If you put hard water, that is, ordinary water into the boiler, it is very easy to scale. Because the steam is constantly evaporating, it will cause the calcium, magnesium, and impurity concentration in the boiler water to be very high, which is 30-50 times that of natural water. The rate of scaling is very alarming. It may not take half a year to a year. There can be 1-2mm scaling. For boiler equipment, scale is extremely harmful, and in severe cases, it can also threaten the safe operation of the boiler.

After the appearance of scale, the thermal conductivity is only less than 0.5% of metal. After the appearance of boiler scaling, if the thermal efficiency is to be achieved without scale, the only way to increase the temperature of the heating surface inside the boiler, for example: when the furnace wall temperature is 250℃, When the scale is 1mm, if you want to achieve the same thermal efficiency, the wall temperature must be increased to 650°C. At this time, the heat absorption rate is extremely low, the energy consumption increases, and the fuel cost doubles.

It can be seen that, no matter from a safety or economic point of view, boiler water must be used in accordance with the use specifications and can only be used after water treatment.

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