Method for softening water and device thereof

Abstract

The invention provides a softening method and a softening device. The softening method combines a magnetizing method and an ion exchanging method. After a permanent water processor and an electromagnetic processor, an ion exchanger conducts the ion exchange. The ion exchange means adding the weak acid or the weak alkali ion exchange after the strong acid or the strong alkali ion exchange. The resin reproducing method is that: by use of the waste liquid produced by the reproducing by use of the strong acid or the strong alkali resin, the weak acid or the weak alkali resin undertakes the reproducing. By the comprehensive processing method, the invention not only can effectively prevent fouling and remove the calcium and the magnesium ions in hard water, but also can remarkably prolong the using period of resin, and reduce the usage of the reproducing agent as well as the reproducing cost in a large scale.

Description

technical field [0001] The invention relates to a water treatment method and its device, in particular to a water softening method and its device. Background technique [0002] Water that contains a large amount of calcium and magnesium ions (inorganic minerals) is called hard water. If hard water is directly used in industrial and domestic boilers, the water flowing through the boiler pipes is heated under pressure, and scale will be generated in the boiler. The formation of scale not only reduces the efficiency of heat transfer, but also reduces the flow rate of water in the pipes, which can have serious consequences. At present, the softening treatment method for hard water usually adopts ion exchange treatment method and physical treatment method. [0003] The ion exchange method is to adsorb the calcium and magnesium ions in the water through the strong acid or strong base resin installed in the ion exchange container, so as to achieve the purpose of removing the calc...

AI Technical Summary

Problems solved by technology

Practice has proved that the solubility of water to calcium and magnesium ions is significantly improved, and the amount of scaling is significantly reduced; water treated with magnetic or electromagnetic fields can maintain the effect of anti-scaling and descaling for several hours, but it still cannot completely remove scale substances in the water , in the long-term use, scaling will still occur in the furnace body, although the thickness of the scaling has decreased

However, the treatment effect on high-temperature water is not as good as that on low-temperature water. When the water temperature reaches the boiling point, the anti-scaling and descaling effect will be completely lost.

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