What are the precautions when using centrifugal fans
About Centrifugal fan:
What are the precautions when using centrifugal fans?
Nowadays, there are more and more scenes of using centrifugal fans, so the questions about this kind of products are also increasing rapidly. From this, you can know that you can carefully understand all aspects of the situation, and feel relieved to make a decision before making a decision. So what are the precautions when using a centrifugal fan?
1. Emergency shutdown: During the trial operation of the unit, if one of the following situations occurs, an emergency shutdown should be performed immediately. The operation of emergency shutdown is to press the main motor stop button, and then perform the aftermath of the shutdown.
a. The centrifugal fan suddenly vibrates strongly and has exceeded the trip value.
b. There is a scratching or abnormal rubbing sound inside the body.
c. There is smoke from any bearing or seal, or the temperature of a certain bearing rises sharply to the alarm value.
d. When the oil pressure is lower than the alarm value and cannot return to normal.
e. The liquid level of the fuel tank is low, and there has been a phenomenon of emptying.
f. When the axis displacement value shows a significant and continuous increase, when it reaches the alarm value.
2. Normal shutdown: The normal shutdown of the unit is performed according to the following procedures.
a. Gradually open the vent valve (or outlet bypass valve), and at the same time gradually close the exhaust valve.
b. Gradually close the air intake throttle to 20～25°.
c. Press the stop button and pay attention to whether there is any abnormality during the shutdown process.
d. The oil supply can be stopped after the unit stops for 5~ or when the bearing temperature drops below 45℃. For units with floating ring seals, the sealed oil pump must continue to supply oil until the body temperature is lower than 80 °C.
After the unit is stopped, the rotor should be rotated regularly within 2 to 4 hours.
Where to buy Centrifugal fan
AFL Fan Equipment Factory is a leading China centrifugal fan supplier and axial fan manufacturer. We have our own production workshop and design team. If you cooperate with us, we can provide you with first-hand prices.
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