Air volume valve with air volume detection device

The utility model relates to the field of air volume valves, in particular to an air volume valve with an air volume detection device. Comprising a valve body, a valve plate, an air volume detection device and a control unit. Wherein the valve body is peripherally closed, and two ends of the valve body are open and are respectively provided with an air inlet and an air outlet; the valve plate is rotationally arranged in the valve body around the axis of the valve plate and used for controlling the flow of airflow passing through the valve body. The air volume detection device is fixed between the valve plate and the air outlet perpendicular to the airflow direction and used for detecting the airflow flow of the air outlet; the control unit adjusts the opening degree of the valve plate by comparing the preset airflow flow with the current airflow flow detected by the air volume detection device. The adjusting mechanism is used for adjusting the preset airflow flow, and the driver is used for driving the valve