Why boilers use softened water
1, the scale has three major hazards: (1) reduce heat absorption, reduce boiler thermal efficiency, waste fuel, thereby increasing the boiler operating costs.
To achieve the same thermal efficiency, wall temperature to be increased to 650 ℃, when the heat absorption rate is very low, increased energy consumption.
Scale thermal conductivity of only about 0.5% of the metal, after the fouling of the boiler, in order to achieve the heat-free scale, it is necessary to improve the heating surface temperature, such as: furnace wall temperature of 250 ℃, when the scale 1mm, to
Imagine, just six months to a year, you can scale 1 - 2mm. Scale of the great harm, serious, can cause the boiler burst! Scale and metal thermal performance comparison.
The concentration of calcium, magnesium and impurities in the boiler is very high - 30 to 50 times the natural water, and the scale of the scale is beyond our level.
