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When the fan is working, does it tend to stop working, or does it exhaust itself? !

2018-01-13View Original

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The resistance increases, the current decreases, and it stops working. The resistance is gone; the air flow is too high, the load is too great, the motor burns out – it’s a exhausting situation. There are both cases of laziness and exhaustion to the point of death – how can we explain such behavior? It is said that this is the rhythm of centrifugal fans; do their cousins, axial flow fans, have a different rhythm? Please ask an expert for guidance!
Reply #22018-01-14
This post was last edited by 764970655 on 2018-1-14 08:16. At times like these, the voltage stabilization system should come into play. It is necessary to ensure proper pressure behind the machine and suction in front of it, to clean the towers regularly, and to maintain the system’s process parameters.
Reply #32018-01-14
What’s the use of voltage stabilization! The resistance is continuously increasing.
Reply #42018-01-14
Look at the curve~~~~~~~~
Reply #52018-01-15
This post was last edited by 764970655 on 2018-1-15 08:32. The resistance is high, so the current decreases; it’s not working properly. At this time, it is necessary to check whether there are any areas in the subsequent processing stages where the resistance exceeds the process requirements. The resistance is gone; the air flow is too high, the load is too great, the motor burns out – it’s a exhausting situation. Can’t the fan’s speed be adjusted? Reduce the speed according to the operating conditions – there’s a tendency to be lazy or to work oneself to exhaustion; how can such behavior be explained? Manually controlling the reaction is too slow; I’m not sure about the situation in your factory. A description of the systems before and after the fan is needed so that everyone can come up with suggestions. It is said that this is the rhythm of centrifugal fans; do their cousins, axial flow fans, have a different rhythm? The outlet resistance of the centrifugal fan is too high (it exceeds the requirements for the fan’s operation, which means it won’t be able to function properly)
Reply #62018-01-16
For fans, to adjust the speed, either variable frequency drive or belt pulleys are required, but the vast majority of fans do not come equipped with such things.
Reply #72018-01-17
The selection of fans is very important; an inappropriate choice can lead to serious problems in use. It is necessary to communicate more with design institutes and fan manufacturers, and conduct repeated evaluations. Thorough verification of the system’s operating conditions is necessary, with careful calculation of the resistance before and after the fan.

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