How do steam compressors get damaged?
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I seek everyone’s help in analyzing the causes of accidents involving centrifugal steam compressors
Your impeller is already touching the cylinder block...
A piece has fallen off in each case; now it’s not clear whether this is caused by surge or by the presence of foreign objects inside. (No foreign objects were found; the missing impeller piece was not located either)
For such accidents, it is also necessary to check the degree of damage to the thrust bearings. There’s still a lack of judgment in these few clips. Judging from the extent of damage to the gas seal, it’s likely that the thrust bearing is also ruined. Let’s send in a few more images to take a look; it’s hard to judge from these alone. It is recommended to check that the physical and chemical properties of the lubricating oil meet the required standards, to verify whether the oil filter is damaged, to examine the condition of the steam filter, and to review the computer-generated trend lines for steam flow to identify any sudden fluctuations in flow rate, as well as other changes in trends.
Has the original poster figured out the cause? Looking forward to hearing about it— but if there’s a problem with the thrust bearings that causes the rotor to shift and thus hit the casing, then it’s likely that all the blades are damaged. From the pictures, it seems that only a few blades are damaged; the possibility of a problem with the thrust bearings is low. What about the condition of the support bearing sleeves? Does the unit have a monitoring system? What are the values of rotor vibration, temperature, and shaft displacement in case of a fault? It’s likely that the filter is clogged or there has been a vacuum condition, which caused the rotor to vibrate suddenly and led to the fault-----