Ion exchange equipment is a traditional deionized water equipment, its water quality is stable, and the cost is relatively low. In the past, the make-up water of power plant boilers used the treatment process of positive bed + negative bed + mixed bed.
In recent years, with the development of reverse osmosis, EDI and other processes, ion exchange equipment is complicated to operate, not easy to realize automation, wastes acid and alkali, and has high operating costs. The shortcomings have become more prominent. At present, more advanced treatment of reverse osmosis is used.
Small ion exchange equipment often uses organic glass exchange columns, which is conducive to observing the operation of the resin. For example, whether the regeneration layering of the mixed ion exchanger is sufficient, whether the cation is “poisoned”, etc., and resin loss.
Large-scale ion exchange equipment uses carbon steel lining epoxy resin or rubber lining, and a visual device is reserved in the middle to facilitate online observation of the water level of the regeneration liquid during ion regeneration.