Centrifugal fan in the normal operation of the reasons for the bearing heat, Centrifugal Fan the centrifugal fan bearings are generally caused by lubricating oil and cooling problems caused by bearing heat, bearing roller fatigue wear peeling, linen and gap increases, Centrifugal Fan causing the bearing temperature rise High, you can from the centrifugal fan bearing the sound and vibration to judge, Centrifugal Fan bearing maintenance also appeared after the bearing heat, may have to install the process and technical parameters do not meet the requirements, Centrifugal Fan or the emergence of soft and hard friction caused by heat. Centrifugal Fan The following new Yongan fan for everyone to sum up on the centrifugal fan bearing fever of the reasons.
1, centrifugal fan spindle or spindle components and bearing box friction;
2, the motor shaft and centrifugal fan shaft different heart, Centrifugal Fan so that the bearing box within the rolling bearings do not move;
3, centrifugal fan bearing box body grease too much;
4, bearing and bearing hole between the gap and loose, Centrifugal Fan bearing box bolts too tight or too loose.
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, Centrifugal Fan change the flow, the kinetic energy into potential energy (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, Centrifugal Fan which slows the kinetic energy into pressure energy. The increase in pressure mainly occurs in the impeller, followed by the expansion process. In a multistage centrifugal fan, Centrifugal Fan the flow is introduced into the next impeller with a reflux, resulting in a higher pressure.
Centrifugal fan working principle and turbine compressor is basically the same, are due to low gas flow rate, pressure change is not, generally do not need to consider the gas specific volume changes, Centrifugal Fan that is, the gas as incompressible fluid treatment.
Centrifugal fans can be made of both right and left. From the motor side of the face, Centrifugal Fan the impeller clockwise rotation, known as the right rotating fan, impeller counterclockwise rotation, Centrifugal Fan known as the left rotating fan.