基于变温萃取溶液离子热效应的制冷热泵系统
By utilizing the subcooling properties of sodium acetate trihydrate and the LCST properties of ionic liquids through a solid-liquid phase change thermodynamic cycle and an ionic liquid regeneration cycle, the high energy consumption and clogging problems of electrodialysis regeneration of high-concentration salt solutions are solved, achieving efficient cooling and heating while meeting environmental protection requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHEAST UNIV
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
In existing ionothermal refrigeration systems, high energy consumption and crystallization blockage occur during the electrodialysis regeneration of high-concentration salt solutions, resulting in low refrigeration and heating efficiency.
A solid-liquid phase change thermodynamic circulation loop and an ionic liquid regeneration circulation loop are adopted. Taking advantage of the supercooling characteristics of sodium acetate trihydrate and the minimum critical co-solution temperature of ionic liquid, high-concentration solution regeneration is achieved through extraction separation and triggered crystallization. Combined with a low-grade heat source to drive the regeneration process, crystallization blockage is avoided.
It enables the regeneration of solutions with higher concentrations, improves cooling and heating performance, reduces system energy consumption, reduces equipment size, adapts to various cooling and heating scenarios, and meets environmental protection requirements.
Smart Images
Figure CN122129802B_ABST