Ramp type steel ball gravity energy storage device and energy storage method

By using small steel balls and electromagnets and hydraulic cylinders controlled by programmable controllers, the problems of poor fluidity and high friction loss of energy storage medium in slope gravity energy storage technology have been solved, realizing a high-efficiency and automated gravity energy storage system suitable for energy storage needs of various terrains and scales.

CN122407495APending Publication Date: 2026-07-17NORTH CHINA INST OF AEROSPACE ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTH CHINA INST OF AEROSPACE ENG
Filing Date
2026-05-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing slope-type gravity energy storage technology suffers from poor fluidity of the energy storage medium, high frictional losses, and low automation, resulting in low system efficiency and high equipment complexity, making it difficult to achieve large-scale application.

Method used

Using small steel balls as the energy storage medium, combined with electromagnets and hydraulic cylinders controlled by a programmable controller, the automated and orderly transfer of steel balls is realized. Through alternating electromagnetic attraction and dynamic alignment of the hydraulic lifting and receiving tank, friction loss and stacking difficulty are reduced, thus constructing an automated energy storage system.

Benefits of technology

It improves the fluidity of energy storage media and system efficiency, reduces energy loss and operation and maintenance costs, adapts to various terrains, and meets energy storage needs of different scales, realizing efficient and automated gravity energy storage.

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Abstract

本发明公开了一种斜坡式钢珠重力储能装置及储能方法,属于重力储能技术领域,包括斜坡钢轨、承载小车、高势能位钢珠存储装置、低势能位钢珠存储装置、可编程控制器、发电装置及电机并网装置。两个钢珠存储装置均包括钢珠存储仓和电磁铁,通过可编程控制器改变电磁铁的通电顺序,利用电磁吸力交替吸附、释放钢珠,实现钢珠在承载小车与存储装置之间的自动化转运。承载小车由发电 / 电动机通过钢缆牵引升降,实现电能与钢珠重力势能的转换。本发明以小钢珠为储能介质,显著提高了储能介质的流动性,降低了码放难度和摩擦损耗,具有自动化程度高、系统综合效率高、适配性强、环保安全等优点,适用于新能源消纳、电网调峰等场景的储能应用。
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