▎ 摘　　要

NOVELTY - The utility model claims an axial sealing device of air suspension flywheel energy storage, comprising: a main shaft, a flywheel rotor, a bearing component, a thrust bearing, a spiral thrust cylinder, a pressurizing cylinder body, a pressurizing cavity, a vacuum cylinder body, a vacuum cavity, a pressurizing cavity air inlet pipe and a throttle valve, a booster pump, a decompression transition chamber, a decompression transition chamber air pump, a high pressure air storage tank, a low pressure air storage tank, a vacuum pump, a magnetic fluid sealing device. a generating motor, a cooling pipe, a gas dynamic pressure groove flow guiding The utility model through the gas dynamic pressure sealing technology combined with the magnetic fluid sealing technology of the air suspension flywheel energy storage device pressurizing cavity of the high pressure gas for three-stage decompressing and sealing, it greatly reduces the rotating direction resistance caused by the cylinder sealing resistance power consumption, furthest maintaining the high vacuum degree of the vacuum cavity. The utility model is compared with nitrile latex, rubber, rubber graphene tetrafluoroethylene and other sealing ring sealing structure, the rotary sealing resistance is smaller, the whole efficiency of the air suspension flywheel energy storage device is higher.