Imported guide vane adjustment principle and characteristics
The inlet guide vane adjuster is provided with a set of adjustable guide vanes in the vicinity of the blower inlet of the blower - the inlet vane, which acts to rotate the airflow before entering the impeller, resulting in a twisting speed.
The guide vanes can be rotated about their own axis, and the rotation of the blade at each angle means changing the installation angle of a guide vane so that the direction of the airflow entering the fan wheel changes accordingly.
When the guide vane mounting angle θ = 0 °, the vane will have no effect on the inlet airflow and the airflow will flow radially into the impeller blades.
When θ> 0 °, the inlet vane will cause the absolute velocity of the airflow inlet to be deflected by the angle θ in the direction of the circumferential velocity, and at the same time, the velocity of the inlet of the air stream will have some effect of throttling. This pre-rotation and throttling will lead to fan performance
Curve down, so that the operating conditions change, to achieve fan flow regulation.