Method and apparatus for estimating performance of anion-exchange resin and condensed-water desalting device

Abstract

The performance of an anion exchange resin is evaluated on-line by measuring inorganic carbonic acid concentrations at the inlet and at the outlet of an ion exchange resin vessel (such as a demineralizer vessel) of an ion exchange apparatus such as a condensate water demineralization system. Moreover, an MTC (Mass Transfer Coefficient) with respect to the inorganic carbonic acid is calculated and the dynamic performance and / or degree of degradation of the anion exchange resin are evaluated. The degree of degradation of the anion exchange resin is evaluated from the MTC and the replacement timing, lifetime, and throughput capacity for the anion exchange resin are judged.

Description

field of invention [0001] The present invention relates to a method and equipment for evaluating the performance of anion exchange resins and condensed water demineralization equipment, in particular, to a method and equipment for evaluating anion exchange resins, which are used for In the ion exchange resin vessel of the condensate demineralization unit of the fossil fuel power plant or nuclear power plant, or in the anion resin column of the ion exchange deionization unit used in other industrial applications such as the production of ultrapure water, involving the Condensed water demineralization device of performance evaluation device. In this application, the condensed water demineralization device is used on the circulating condensed water pipeline assembled in the mineral nuclear power plant, as an example of the ion exchange deionization device (demineralization device), the present invention is aimed at the condensed water deionization device Anion exchange resins in...

AI Technical Summary

Problems solved by technology

From the perspective of ensuring water quality, it is very important to maintain good performance of ion exchange resins and proper replacement of ion exchange resins. However, the performance evaluation and replacement time of ion exchange resins are now passed at the outlet of ion exchange resin containers. However, this evaluation method cannot accurately evaluate the performance of anion exchange resins

In a standard ion exchange resin water demineralization plant, the anion exchange resin will affect the cation exchange resin, as opposed to the situation in a condensate water demineralization system in a power plant, where it has been observed that the cation exchange resin reacts rate is reduced

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