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.
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
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.
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.
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.
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Figure CN120097424B_ABST