High-boiling-point stable nano heat exchange fluid and preparation method thereof
By adding various nanoparticles to an alcohol-water solution, a high-boiling-point stable nano heat exchange fluid is formed, which solves the problems of limited liquid phase working range and insufficient thermal conductivity of the heat exchange medium under high-temperature operating conditions, and achieves higher heat transfer efficiency and stability.
Patent Information
- Application Number
- CN202610591140.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing heat exchange media have limited liquid phase operating range, insufficient thermal conductivity, and poor long-term cycle stability under high-temperature operating conditions. Existing nanoparticles also have insufficient dispersion stability and adaptability, resulting in poor heat transfer performance.
A high-boiling-point stable nano-heat exchange fluid is formed by using a mixture of polyol and pure water as the base liquid, adding surfactants and various nanoparticles (such as Al2O3, MWCNT, and SiO2), and then mechanically stirring and ultrasonically dispersing it. This constructs a multi-level continuous heat conduction network, enhancing dispersion stability and thermal conductivity.
It improves the thermal conductivity and boiling point of the heat exchange fluid, broadens the liquid phase operating range, enhances the adaptability to medium and high temperature operation, and improves heat exchange performance and system efficiency.