【Q&A Question 191】2018.07.16
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【Q&A Question 191】July 16, 2018: Briefly explain the reasons for increased vibration in the compressor shaft 1) Loose foundation bolts ； 2) Increased shaft clearance ； 3) Poor rotor balance ； 4) The unit is in surge condition ； 5) Lubricant temperature is too low or too high ； 6) System resonance or fundamental resonance. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below. The APP short-video skill competition has begun! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670
The concentricity is incorrect； Bearing damage ； Coupling damaged ； Rotor imbalance ； Increased friction between moving and stationary parts
1) Loose foundation bolts； 2) Increased shaft clearance ； 3) Poor rotor balance ； 4) The unit is in surge condition ； 5) Lubricant temperature is too low or too high ； 6) System resonance or fundamental resonance.
Compressed gas contains liquid, causing significant fluctuations in system pressure, with the rotation speed operating within the critical speed range.
Not installed properly； The inlet pressure is too high or too low ； High impurities in the compression medium
Shaft displacement, loose foundation bolts, crankshaft deformation, shaft deformation