Issues regarding the static blades of the catalytic main fan
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When the main fan stator vane angle feedback suddenly changes. If the static blades of the main fan do not have a self-locking function, will there be changes in the main air flow, which in turn could trigger the main fan’s self-protection mechanism? In other words, does a changed stator blade feedback cause the main air stator blades to track?
Why not? Please explain in detail.
The response changes suddenly; it’s just a single display with no movement
A possible explanation for this response is that there’s a problem with the instrument, or it might actually be moving. If it actually moves, the flow rate at the outlet of the main fan will definitely change. The main fan is equipped with a low flow interlock; it activates its self-protection function when the flow drops to a certain level.
We have experienced a reduction in the size of the responses, as well as issues with self-protection actions; it’s not clear whether this is caused by the changes in the responses. The main air volume has indeed changed, and the feedback has also changed. Then the main air flow returned on its own, and the system operated safely; later, two surge signals occurred and the system stopped operating. Who can explain it?
We have experienced a reduction in the size of the responses, as well as issues with self-protection actions; it’s not clear whether this is caused by the changes in the responses. The main air volume has indeed changed, and the feedback has also changed. Then the main air flow returned on its own, and the system operated safely; later, two surge signals occurred and the system stopped operating. Who can explain it?