Vacuum treatment device for rectifying tower

The utility model belongs to the field of rectifying towers, in particular relates to a vacuum treatment device for a rectifying tower, and aims to solve the problem that raw oil in the rectifying tower is heated and the heating power is too high as the existing rectifying tower is inconvenient for workers to directly observe the gas-liquid flow condition in the rectifying tower. According to the scheme, the device comprises an observation mechanism which is arranged on the rectifying tower and is used for observing the interior of the rectifying tower, and an observation mechanism which is arranged on the rectifying tower and is used for observing the interior of the rectifying tower; and the vacuum treatment mechanism is arranged on the bottom plate and is used for vacuumizing gas in the rectifying tower. When the rectifying tower is used, a worker can directly and clearly observe the gas-liquid flowing condition in the rectifying tower, abnormal phenomena such as flooding can be conveniently prevented in t