Operating Principle:

Common medium-pressure fans are centrifugal fans, with the impeller covered by a mechanical casing, and the center of the impeller being the intake. As the medium-pressure fan operates, the power unit drives the impeller to rotate, drawing air into the intake. During the rotation of the fan blades, they exert dynamic force on the gas, increasing its pressure and speed, and the gas is ejected from the exhaust outlet along the air channel under the action of centrifugal force.

During operation, although the impeller's rotation increases the pressure and velocity of the gas, the various changes in the gas are relatively small. Therefore, in the design and use of centrifugal blowers, the gas is typically treated as an incompressible fluid. The gas processing of medium-pressure blowers is always completed within the same radial plane, hence the medium-pressure blowers are also known as radial flow centrifugal blowers.

Technical Parameters: In the technical specifications of medium-pressure fans, the most important factors to consider are the gas flow rate, pressure, power output, efficiency, and impeller speed. These are all crucial aspects to pay attention to during the selection process. The gas flow rate parameter of a medium-pressure fan represents the volume of gas the fan can process in a unit of time, while the pressure of a medium-pressure fan refers to the internal gas pressure value during its operation.

The efficiency of a medium-pressure fan refers to the ratio between the shaft power of the fan and the effective power of the actual gas being processed. The total pressure efficiency of centrifugal fans is approximately 90%, and in the future development of centrifugal fans, efficiency values will be one of the targets that researchers further pursue.

Medium-pressure fans are widely used for dust extraction and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; ventilation and exhaust in boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and sorting of grains; wind tunnel air sources, air cushion ship inflation, and propulsion, etc.