温差能驱动压气蒸馏海水淡化系统及海水淡化方法

By using a temperature difference energy-driven compressed gas distillation seawater desalination system, combined with an absorption-type compressed gas distillation cycle and low-pressure compression assistance, the problems of high energy consumption and low efficiency in traditional seawater desalination have been solved, achieving low-energy and high-efficiency freshwater supply for islands.

CN120097424BActive Publication Date: 2026-07-17SOUTHEAST UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Filing Date
2025-04-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional distillation and flash seawater desalination technologies suffer from high energy consumption and low efficiency, which limits their application, especially on islands. Furthermore, conventional single-stage flash evaporation units cannot break through the flash pressure threshold due to condensation temperature limitations, thus restricting the degree of seawater vaporization.

Method used

The seawater desalination system driven by temperature difference energy uses an absorption-type compressed gas distillation desalination cycle and low-pressure compression assistance, combined with ocean temperature difference energy and solar energy, to reduce the evaporation temperature, decouple the evaporation and condensation processes, and use natural pressure difference and vacuum pressure difference to transport cold seawater, increase the heat load of the condenser, and improve the freshwater yield.

Benefits of technology

It achieves low-energy and high-efficiency seawater desalination, breaks through the flash evaporation pressure limit, improves freshwater yield, and is suitable for the water supply needs of islands with weak power grids.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种温差能驱动压气蒸馏海水淡化系统及海水淡化方法,温差能驱动压气蒸馏海水淡化系统包括压气蒸馏海水淡化模块;所述压气蒸馏海水淡化模块包括吸收器、发生器、冷凝器、气液分离器、淡水储液罐、溶液泵和溶液节流阀;溶液泵连接在吸收器的稀溶液出口与发生器的稀溶液入口之间;冷凝器连接在发生器的水蒸气出口与淡水储液罐之间;气液分离器连接在冷凝器的淡水出口与吸收器的水蒸气入口之间;溶液节流阀连接在吸收器的浓溶液出口与发生器的浓溶液入口之间;在吸收器通入深层冷海水;在发生器通入表层温海水。本发明为热带岛屿淡水制备提供了“就地取能、海能海用”的可再生能源制冷模式,清洁、高效地解决了岛屿的淡水需求。
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