Energy storage heat management system and energy storage equipment

The energy storage thermal management system, which uses direct cooling and heat recovery from the expander, solves the problem of low energy efficiency of the energy storage thermal management system and achieves efficient heat recovery and energy efficiency improvement.

CN223450954UActive Publication Date: 2025-10-17ENVISION ENERGY TECH (SHANGHAI) CO LTD +1
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Patent Information

Application Number
CN202422221158.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-10
Publication Date
2025-10-17
Estimated Expiration
2034-09-10

AI Technical Summary

Technical Problem

The existing energy storage thermal management system uses indirect cooling and heat pump technology, resulting in low energy efficiency and heat dissipation into the air, causing waste.

Method used

Direct cooling is adopted to recover excess heat through the expander, and combined with the refrigerant pump and electronic expansion valve, one-time heat exchange is achieved. The combination of the expander and refrigerant pump is used to achieve heat recovery and energy-saving cooling.

Benefits of technology

The energy efficiency of the energy storage thermal management system has been improved, the heat transfer efficiency has been increased by more than 30%, thermal management control and heat recovery at different temperatures have been achieved, and power consumption has been reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of energy storage heat management, and discloses an energy storage heat management system and energy storage equipment, the energy storage heat management system comprises a first heat exchanger, a first switching unit, a three-way valve, an expansion machine, a second heat exchanger, a second switching unit and an electronic expansion valve; the first switching unit comprises a first switching element; the second switching unit comprises a refrigerant pump and a second switching element; when the energy storage heat management system is in a heat recovery cooling mode, the first switch element is in an open state, the first end of the three-way valve is communicated with the second end of the three-way valve, and the second switch element is in a closed state; a refrigerant exchanges heat with the energy storage assembly through the first heat exchanger, then a gaseous refrigerant is output, the expansion machine recovers heat of the gaseous refrigerant, the gaseous refrigerant is cooled through the second heat exchanger, and then a liquid refrigerant is output. And the liquid refrigerant flows back to the first heat exchanger after being compressed by the refrigerant pump and expanded by the electronic expansion valve. According to the energy storage heat management system, heat recovery can be achieved, and the energy efficiency of the system is improved.
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