Benzaldehyde storage system

A benzaldehyde storage system comprises a separating device, a nitrogen-making system, a static mixer and a seal pot, wherein the upper part of the separating device is communicated with a benzaldehyde storage tank through a pump; the top end of the separating device is communicated with a vacuum system; the bottom end of the separating device is communicated with the inlet of the static mixer through an intermediate pump; the inlet of the static mixer is also communicated with the nitrogen-making system; the outlet of the static mixer is communicated with the seal pot. Through adoption of the separating device, benzaldehyde can be sprayed fast and uniformly through a spraying nozzle to be atomized, so that dissolved oxygen can be removed fast in a high-vacuum state, the effect of oxygen-free storage is realized, equipment investment is reduced, and the storage period is prolonged.