POWER SYSTEM USING RELATIVE PRESSURE GAS ENERGY AND POWER METHOD

摘要

A relative pressure gas energy storage device (10) comprises an inner unit (1) and an outer unit (2) sleeved onto the outside of the inner unit (1). A first gas is filled in the inner unit (1). A second gas is filled in a cavity (21) formed between the outer unit (2) and the inner unit (1). There is a pressure difference between energy of the first gas and energy of the second gas. The pressure difference is relative pressure gas energy. The relative pressure gas energy storage device (10) can store gases having two different pressure intensities, has a simple structure, is convenient for transport, and is favorable for effective energy storage and long term storage of gases. Also disclosed are an inspection method for the relative pressure gas energy storage device, a relative pressure gas energy storage system and a balance detection mechanism.