Principle of softened water equipment:

Working principle: The automatic sodium ion exchanger adopts the ion exchange principle to remove scaling ions such as calcium and magnesium from water. When the raw water containing hardness ions passes through the resin layer in the exchanger, the calcium and magnesium ions in the water will be replaced by the sodium ions adsorbed by the resin. The resin adsorbs calcium and magnesium ions, while sodium ions enter the water. Therefore, the water flowing out of the exchanger is softened water that removes hardness.

Due to the fact that the hardness of water is mainly formed and expressed by calcium and magnesium, cation exchange resins (water softeners) are generally used instead of Ca2+and Mg2+(the main components of scaling) in water. As the content of Ca2+and Mg2+in the resin increases, the removal efficiency of Ca2+and Mg2+by the resin gradually decreases. When the resin absorbs calcium and magnesium ions, regeneration is required. The regeneration process involves rinsing the resin layer with salt water from the salt tank and replacing the hardness ions on the resin. After the regenerated waste liquid is discharged from the tank, the resin resumes its softening and exchange function. Due to the fact that the hardness of water is mainly formed by calcium and magnesium, and the hardness of water is mainly formed by calcium and magnesium, the principle of sodium ion exchange softening treatment is to exchange the hardness components Ca2+and Mg2+in water with the sodium ions in the resin through sodium ion exchange. Thus adsorbing Ca2+and Mg2+to obtain water. Softening.

The water treatment equipment factory introduced that if RNA is used to represent sodium resin, the exchange process is as follows: 2rna+ca2+=r2ca+2na+2rna+mg2+=r2mg+2na+, that is, after water passes through a sodium ion exchanger, the Ca+and Mg+in the water are replaced by Na+. The operation process of the main control valve includes: operation, backwashing, salt suction, slow washing, salt tank replenishment, and positive washing.

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