Calibration system for tobacco perfuming and charging flow meter

The utility model discloses a tobacco flavoring and charging flow meter calibration system, which is used for calibrating a flow meter on a production pipeline and comprises a calibration pipeline connected to the production pipeline through a three-way valve; the production pipeline comprises a feeding pipeline connected to the feeding end of the three-way valve and a discharging pipeline connected to one discharging end of the three-way valve; the calibration pipeline is connected to the other discharge end of the three-way valve; the production flow meter is mounted on the discharging pipeline and is used for metering the liquid flow of the discharging pipeline; the cleaning structure is mounted on the calibration pipeline and used for cleaning and emptying residual liquid in the pipeline; and the standard flow meter is arranged on the calibration pipeline and is used for metering the liquid flow on the calibration pipeline. The device is created on the basis that original equipment is not changed, the pro