Liquid moisture-proof device, application thereof and liquid moisture-proof method

The invention relates to the technical field of storage tanks, and discloses a liquid moisture-proof device and application thereof and a liquid moisture-proof method.The device comprises a storage tank and a drying tank, a top outlet of the storage tank is connected with a top inlet of the drying tank through a breather valve and an exhaust pipe, and a two-way exhaust valve is arranged at the bottom end of the drying tank; the air pressure balance adjusting device is used for adjusting internal and external air pressure balance of the liquid dampproof device. Wherein the volume of the drying tank is more than 0.5% of the volume of the storage tank. According to the technical scheme, the breather valve and the pipeline at the top of the storage tank are connected to the drying tank, the structure of the storage tank is not transformed, the transformation cost is extremely low, and the effect is obvious. At present, the practicability and the operation reliability of the moisture-proof technology of the storag