Metering adjusting system and control method thereof

The invention relates to the field of precise metering control of fine chemical reaction ingredients, and provides a metering adjusting system and a control method thereof.The metering adjusting system comprises a control mechanism, a buffer tank, a flow meter, a first valve, a metering tank and a second valve, and the buffer tank, the flow meter, the first valve, the metering tank and the second valve are sequentially communicated through pipelines; the control mechanism is electrically connected with the flow meter, the first valve and the second valve, and the control mechanism is used for controlling the first valve to be opened and the second valve to be closed when receiving the preset amount of the raw materials; when the flowmeter detects that the total flow of the raw materials reaches the preset amount, the first valve is controlled to be closed, when the actual amount of the raw materials in the metering tank reaches the preset amount or exceeds the rated amount, the first valve is controlled to be