Solar energy storage system based on liquid metal

Through the liquid metal working fluid and dual-collection structure of the solar energy storage system, the problems of slow heating speed, single purpose, small heat storage and low thermal conductivity of traditional solar water heaters are solved, and efficient energy conversion and multi-purpose applications are achieved.

CN223331940UActive Publication Date: 2025-09-12UNIV OF CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202422013626.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-09-12
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

Traditional solar water heaters have slow heating speed, single purpose, small heat storage capacity, low thermal conductivity, low working fluid temperature, cannot meet immediate needs and have low energy quality.

Method used

Liquid metal is used as the working fluid, and the concentration of solar radiation is improved through a double collection structure and convex lens focusing method. The high absorption rate film is used to convert light energy into heat energy, and heat is exchanged with the liquid metal through a spiral heat exchange coil to achieve efficient heat transfer.

Benefits of technology

It improves the working fluid temperature and energy quality, meets the needs of multiple uses, reduces energy loss, achieves efficient heat storage and heat transfer, and is environmentally friendly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a solar energy storage system based on liquid metal, which comprises a double-collection structure, the double-collection structure comprises a solar focusing mirror at the top and a solar light-gathering plate surrounding the solar focusing mirror, and the solar light-gathering plate is used for reflecting and gathering solar radiation irradiated on the solar light-gathering plate, so that the solar energy is collected and stored in the solar light-gathering plate. Solar radiation is highly concentrated and irradiated to the side face of the energy storage system, solar heat can be effectively collected to heat liquid metal, the corresponding working temperature can be borne, a vacuum layer is arranged between the outer-layer glass and the inner-layer glass, the heat preservation effect is achieved, heat stored in the liquid metal is not dissipated outwards, and the service life of the energy storage system is prolonged. The heat exchange coil pipe is a copper pipe with the outer surface plated with aluminum oxide, the heat exchange coil pipe is in a surrounding disc shape, the heat exchange efficiency is improved, a heat exchange medium is sent out after entering and exiting a surrounding path twice, heat exchange is sufficient, and the heat exchange coil pipe exchanges heat with liquid metal with the highest temperature and the lowest density.
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