What is the operation of centrifugal fans and axial fans?
When the impeller rotates, the gas enters the impeller from the inlet of the air inlet, and the energy of the gas is raised by the pushing of the blades on the impeller and then flows into the guide vane. The guide vanes change the deflected airflow into axial flow and introduce the gas into the diffuser tube, further converting the kinetic energy of the gas into pressure energy, and finally introducing the working line.
The increase in pressure mainly occurs in the impeller, followed by the expansion process. In a multistage centrifugal fan, the flow is introduced into the next impeller with a reflux, resulting in a higher pressure.
In a single stage centrifugal fan, the gas enters the impeller from the axial direction, and the gas flows into the radial direction through the impeller and then enters the diffuser. In the diffuser, the gas changes the flow direction to cause deceleration, which slows the kinetic energy into pressure energy
Centrifugal fan is based on the principle of kinetic energy conversion to potential energy, the use of high-speed rotation of the impeller to accelerate the gas, and then slow down, change the flow, the kinetic energy into potential energy (pressure)
Fan in the work, the air flow from the fan into the blade space, and then driven in the impeller on the next side with the impeller rotation; the other hand, under the action of inertia to improve energy, along the radial direction away from the impeller, the resulting centrifugal force to do work The fan is called a centrifugal fan
