Method and system for treating seawater

By controlling the seawater supply flow and concentrated seawater recovery in the seawater treatment system, the problems of low operating efficiency and scale accumulation in concentrated seawater concentration have been solved, achieving efficient and high-concentration concentrated seawater production and chemical savings.

CN113336286BActive Publication Date: 2026-07-21SASAKURA ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SASAKURA ENG CO LTD
Filing Date
2021-02-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing water production equipment becomes less efficient when increasing the concentration of concentrated seawater, and the high concentration of concentrated seawater can easily lead to scale buildup and increased chemical consumption.

Method used

By setting flow regulation and reflux steps in the seawater treatment system, the supply flow rate of seawater and the recovery of concentrated seawater can be controlled. This includes interrupting the recovery when the concentration of concentrated seawater is too high or the continuous recovery time is too long, and increasing the seawater supply flow rate and the amount of chemical injection when the concentration is low, and switching the operating mode to inhibit scale accumulation.

Benefits of technology

It achieves efficient production of high-concentration concentrated seawater, reduces scale accumulation and chemical consumption, and improves water production efficiency and system stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a seawater treatment system capable of efficiently producing concentrated seawater with high concentration. The seawater treatment system (1) includes: a water producing device (10) that evaporates and concentrates seawater; a supply device (20) that supplies seawater to the water producing device (10); and a recovery device (30) that recovers concentrated seawater from the water producing device (10), the recovery device (30) interrupting the recovery of the concentrated seawater when the concentration of the concentrated seawater exceeds a prescribed concentration or when the continuous recovery time of the concentrated seawater exceeds a prescribed time in the recovery of the concentrated seawater.
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