Axial flow fan stator vane adjustment mechanism
Thread Content
The static vane control mechanism of the catalytic axial flow fan has failed; as part of the unit’s self-protection system, the main fan cannot have its static vanes controlled automatically before it is brought online, but now it is possible to control them. The unit has been put into automatic operation, and the static blades should be capable of being adjusted; however, they can no longer be adjusted and are directly set to 22 degrees. Everything is reversed. Have you encountered this situation before? Please help analyze it – it’s an emergency
Is it hydraulically controlled? If so, please read on ； If not, I’ll say nothing. Are there solenoids with self-protection functions? If so, check the live and off state, as well as whether the valve core is in normal condition. When did this problem arise? Did it occur suddenly after maintenance or renovation, or while in operation? Is there a hydraulic flow diagram available for everyone to use, to help with further assessment?
Check whether the self-protection design is correct
It might be a problem with the ESD/SIS self-protection program; the instrumentation team should check it