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What should be paid attention to in the operation of a centrifugal fan

Jun 01, 2018

There are some things to pay attention to when centrifugal fans are running, let's see what they need to pay attention to.

First, always pay attention to the centrifugal fan bearing temperature and lubrication cooling.

1. Oil lubrication of rolling bearing: the normal temperature of the bearing should be less than 60 C, allowed 70 C, the inlet oil temperature is 35 C -45 C, the outlet oil temperature is 55 C -65 C, the temperature rise is less than 40 centigrade.

2. Rolling bearing grease lubrication: the normal temperature of the bearing should be less than 70 ℃, the allowable temperature should be 80 ℃, the inlet oil temperature should be 35 ℃ -45 ℃, the outlet oil temperature should be 55 ℃ -65 ℃, and the temperature rise should be less than 40 ℃.

3. Sliding bearing: bearing normal temperature should be less than 65 ℃, allowable 70 ℃, inlet oil temperature 35 ℃ -45 ℃, outlet oil temperature 55 ℃ -65 ℃, temperature rise less than 35 ℃

Second, pay attention to the vibration and impingement noise of the unit. The vibration meter should be used to check the amplitude of the bearing. Listen for collisions and other sounds inside the machine.


Third, the ammeter is used to monitor the motor load and the centrifugal fan is not allowed to run under the firing load condition for a long time.

Fourth, for dust removal, pulverized coal centrifugal fan, to check the dust, ash particle changes in accordance with the centrifugal fan requirements.

Five, pay attention to the change of gas temperature and the maximum allowable temperature for centrifugal fans.http://www.jnblower.com/