An anion exchanger backwashing system

By using an anion exchanger backwashing system, ultrapure water is used to remove broken resin stuck on the water cap, solving the problem of resin breakage, reducing pressure difference and extending lifespan, lowering production costs and improving water production capacity.

CN224279855UActive Publication Date: 2026-05-26SICHUAN TIANHUA FUBANG CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN TIANHUA FUBANG CHEM IND CO LTD
Filing Date
2025-03-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, the resin in anion exchangers is easily broken, which leads to an increase in the pressure difference between the inlet and outlet, a shortened service life, and high costs for cleaning and removing broken resin.

Method used

Design an anion exchanger backwashing system that uses a backwash pump to deliver ultrapure water to the anion exchanger for backwashing, flushing away broken resin stuck on the water cap and distributing it evenly. Combined with a water distribution plate and a water expansion plate, the backwashing effect is improved, the pressure difference is reduced, and the service life of the resin is extended.

Benefits of technology

It effectively reduces the pressure difference between the inlet and outlet of the anion exchanger, extends its service life, reduces resin breakage, saves production costs, and improves water production capacity.

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Abstract

This utility model provides an anion exchanger backwashing system, relating to the field of chemical desalination and demineralized water production technology. The anion exchanger backwashing system includes an anion exchanger, a resin trap, a mixed ion exchanger, and a storage tank connected in sequence. A backwashing pipeline is connected to the storage tank, and a backwash pump and a backwash regulating valve are installed on the backwashing pipeline. An inlet valve is installed on the connecting pipeline between the resin trap and the mixed ion exchanger. The other end of the backwashing pipeline is connected to the connecting pipeline between the resin trap and the inlet valve. The anion exchanger backwashing system can effectively flush away broken resin stuck on the water cap during the service life, ensuring the water production capacity of the anion exchanger, reducing resin breakage, and effectively extending its service life.
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