centrifugal fan rotation direction
Centrifugal fan rotation direction
- The rotation direction of the centrifugal fan can be determined by observing the rotation direction of the impeller.
- Looking at the direction of rotation of the impeller from the spindle pulley motor side, clockwise rotation is right-hand rotation, and counterclockwise rotation is left-hand rotation.
- The left-hand and right-hand rotation of the centrifugal fan refers to the direction of rotation of the wind wheel. Along the direction of rotation of the wind wheel, the gas movement toward the inside of the casing is a right-hand centrifugal fan, and vice versa is a left-hand centrifugal fan.
- Facing the direction of the air outlet, the one with the air inlet on the left is left-handed, and the one with the air inlet on the right is right-handed.
- These methods can help determine the direction of rotation of the centrifugal fan and ensure its normal operation.
Fan discharge orientation
- How to determine the direction of fan air outlet
- Judge by the skeleton and wiring direction: Generally, the side where the skeleton can be seen is the air outlet side, and the side where the skeleton cannot be seen is the air inlet side; the side where the wiring can be intuitively seen is the air inlet side, and the side where the wiring cannot be seen is the air inlet side. The side of the line is the wind outlet side.
- Judge by blade shape: The side with a more rounded shape of the blade is the air inlet side, and the unrounded side is the wind outlet side.
- Judge by the direction of blade rotation: clockwise rotation indicates air outflow, counterclockwise rotation indicates air inflow.
- Judge by the fan mark: The side with the mark is the air outlet side, and the side without the label is the air inlet side.
- Judging by the installation direction of the exhaust fan: the air outlet side of the exhaust fan should be facing outside, and the air inlet side should be facing indoors.
- Judge by the installation position of the chassis fan: the front of the chassis fan is the air inlet and the back is the air outlet.
What is the direction of the centrifugal fan flow?
- The airflow direction of the centrifugal fan is axially entering the impeller, and then flowing radially through the rotation of the impeller. When the centrifugal fan is working, the airflow enters the impeller from the axial direction. As the impeller rotates, the airflow increases its energy under the action of inertia and leaves the impeller along the radial direction.
- The specific process of the airflow direction of the centrifugal fan is as follows: the airflow first enters the impeller axially, and then rotates driven by the impeller, and uses the centrifugal force generated to discharge the airflow in the radial direction. This process allows the air flow to gain energy, thereby achieving gas transportation and compression.
- The airflow direction of a centrifugal fan is closely related to its working principle. The centrifugal fan generates centrifugal force through the rotation of the impeller, sucking the airflow from the axial direction, accelerating the airflow through rotation, and then discharges it in the radial direction. This design allows centrifugal fans to efficiently transport and compress gas.
Centrifugal fan rotation direction diagram
