Airtightness method for centrifugal compressors
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Can a centrifugal syngas compressor be used to perform a gas-tightness test on the compressor itself? In other words, the unit is made airtight together with the pipes.
When the unit is at rest, the pipes are made airtight together with the unit.
To what pressure can the unit be pressurized by flooding it with low-pressure nitrogen (0.6 MPa)?
This post was last edited by Longkongzhi Eagle on 2011-8-13 08:23. At the very least, major leaks can be identified; if possible, it’s best to use oil-free dry air for detecting leaks.
Will performing a leak test with a centrifugal compressor damage the compressor impeller and other components?
It is completely possible to perform airtightness testing with the compressor as well; by applying a seal at one stage, the pressure can be brought to the designed level
It should be possible, but be sure to pay attention to the operation of the compressor to avoid surge.
Can different compressed media be used? Normal compressed syngas (molecular weight 11.377) is used; nitrogen (molecular weight 28) is used when airtight sealing is required.
The compressor manufacturer did not provide nitrogen operation data and surge curves; so how can pressure increase and airtightness be ensured?
Static experiments are sufficient; there’s no need to run it