Why is the axial vibration displacement of the compressor high, with large values at both the drive end and the non-drive end?
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As the title suggests, the axial vibration displacement of the compressor is high, and it suddenly increases before remaining at that level. Reducing the speed helps to lower this displacement, but it increases again when the speed is raised. What could be the reason? Online dewaxing was carried out a few days ago; could something have gotten inside the rotor and gotten stuck there? The lubrication system is all in order.
http://bbs.hcbbs.com/forum.php?m ... =%D6%E1%CE%BB%D2%C6 http://bbs.hcbbs.com/forum.php?m ... =%D6%E1%CE%BB%D2%C6 http://bbs.hcbbs.com/forum.php?m ... =%D6%E1%CE%BB%D2%C6 http://bbs.hcbbs.com/forum.php?m ... =%D6%E1%CE%BB%D2%C6 http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=840155&highlight=%D6%E1%CE%BB%D2%C6 The reason for this is that the two sides of the impeller are subjected to different pressures during operation, resulting in an axial pressure difference. The axial pressure differences generated on each stage of the impeller act on the rotor shaft; when these forces cannot cancel each other out, a total axial force is created that pushes the rotor shaft to move axially.
Are there a positive and a negative one at each end? An increase in rotational speed results in a greater pressure difference at both ends, which in turn leads to an increase in axial displacement.
Have there been any changes in the gas composition or steam quality?